CN100487332C - Energy-saving intelligent control system for central air conditioner - Google Patents
Energy-saving intelligent control system for central air conditionerDownload PDFInfo
- Publication number
- CN100487332C CN100487332CCNB2005100173497ACN200510017349ACN100487332CCN 100487332 CCN100487332 CCN 100487332CCN B2005100173497 ACNB2005100173497 ACN B2005100173497ACN 200510017349 ACN200510017349 ACN 200510017349ACN 100487332 CCN100487332 CCN 100487332C
- Authority
- CN
- China
- Prior art keywords
- central air
- conditioning
- energy
- control
- real
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004378air conditioningMethods0.000claimsabstractdescription104
- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000claimsabstractdescription78
- 238000012544monitoring processMethods0.000claimsabstractdescription45
- 238000005057refrigerationMethods0.000claimsabstractdescription42
- 238000001816coolingMethods0.000claimsabstractdescription37
- 238000004891communicationMethods0.000claimsabstractdescription19
- 239000000498cooling waterSubstances0.000claimsabstractdescription19
- 238000007726management methodMethods0.000claimsabstractdescription16
- 238000005265energy consumptionMethods0.000claimsabstractdescription13
- 238000010438heat treatmentMethods0.000claimsabstractdescription13
- 230000001105regulatory effectEffects0.000claimsabstract3
- 238000000034methodMethods0.000claimsdescription21
- 238000013459approachMethods0.000claimsdescription4
- 230000008569processEffects0.000claimsdescription4
- 238000012360testing methodMethods0.000claimsdescription3
- 230000008676importEffects0.000claims3
- 230000001276controlling effectEffects0.000claims1
- 238000012937correctionMethods0.000claims1
- 238000011017operating methodMethods0.000claims1
- 238000005516engineering processMethods0.000abstractdescription6
- 238000011897real-time detectionMethods0.000abstractdescription2
- 238000010276constructionMethods0.000description8
- 230000000694effectsEffects0.000description5
- 238000005259measurementMethods0.000description5
- 238000013461designMethods0.000description3
- 238000010586diagramMethods0.000description3
- 238000005457optimizationMethods0.000description3
- 230000003044adaptive effectEffects0.000description2
- 230000009286beneficial effectEffects0.000description2
- 230000005540biological transmissionEffects0.000description2
- 238000012423maintenanceMethods0.000description2
- 230000009467reductionEffects0.000description2
- 230000008439repair processEffects0.000description2
- 230000009471actionEffects0.000description1
- 238000004458analytical methodMethods0.000description1
- 230000008859changeEffects0.000description1
- 238000006243chemical reactionMethods0.000description1
- 230000001186cumulative effectEffects0.000description1
- 238000012938design processMethods0.000description1
- 230000002708enhancing effectEffects0.000description1
- 230000007613environmental effectEffects0.000description1
- 238000007710freezingMethods0.000description1
- 230000008014freezingEffects0.000description1
- 238000009434installationMethods0.000description1
- 238000011900installation processMethods0.000description1
- 238000012545processingMethods0.000description1
- 230000035484reaction timeEffects0.000description1
- 239000003507refrigerantSubstances0.000description1
- 230000004044responseEffects0.000description1
- 238000012546transferMethods0.000description1
- 239000002699waste materialSubstances0.000description1
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Translated fromChinese
Description
Translated fromChinese一、技术领域：本发明涉及一种中央空调节能自控管理系统，特别是涉及一种中央空调节能智能控制系统及控制方法。1. Technical field: The present invention relates to a central air-conditioning energy-saving automatic control management system, in particular to a central air-conditioning energy-saving intelligent control system and control method.
二、背景技术：中央空调就是一个集中供热(或供冷)的建筑物内空气调节系统，它包括三大部分：Two, background technology: central air-conditioning is exactly the air-conditioning system in the building of a central heating (or cooling), and it comprises three major parts:
1、冷(热)源中心，提供建筑物内空气调节时所需的冷量(或热量)，冷源一般为电制冷机组，或热制冷机组，热源一般为锅炉或热泵机组：1. The cold (heat) source center provides the cooling capacity (or heat) required for air conditioning in the building. The cold source is generally an electric refrigeration unit or a thermal refrigeration unit. The heat source is generally a boiler or a heat pump unit:
2、冷(热)量传输系统，分为水系统、空气系统和氟里昂系统，水系统包括水泵、管道、阀门、分/集水缸、冷/热水等，空气系统包括风机、风管、风阀、风口等，氟里昂系统含有分流阀、管道、氟里昂制冷剂等；2. The cold (heat) transmission system is divided into water system, air system and Freon system. The water system includes water pumps, pipes, valves, water distribution/collection tanks, cold/hot water, etc. The air system includes fans and air ducts. , air valve, tuyere, etc., the Freon system contains diverter valves, pipes, Freon refrigerant, etc.;
3、末端空气调节系统，完成建筑内空气的冷(热)交换，三者组成一个完整的中央空调系统。3. The terminal air-conditioning system completes the cold (heat) exchange of the air in the building, and the three form a complete central air-conditioning system.
目前常见的大型中央空调多以水为介质，末端空气调节系统采用风机盘管，将能量在用户末端和能量中心进行交换以实现集中供冷或供热。现在中央空调的运行基本以制冷主机的自动控制来实现空调能量供应量的调节，通常把冷冻水的供/回水温度作为终端设备负荷变化的依据，难以避免时效性滞后，不利节能降耗。在中央空调实际运行中，由于建筑空调各区域受到外部和内部各种因素的影响，使其所需热、湿负荷不断的发生变化，这就需要对中央空调系统各部分进行适当的调节。一个好的中央空调系统要真正达到高效节能之目的，前期的设计、安装过程仅仅是打好了基础，设备、管道安装到位，其在传输过程中的能(热)量损失基本是不变的，高效节能的关键还是在于后期的运行管理。当前应用比较成熟流量/热量控制法，以中央空调的供、回水温度为能源需求量的依据，通过调整中央空调制冷主机的冷量输出量宋实现按需供应，其原理参见附图3，即传统的用于中央空调节能控制的余量判断法：中央空调检测冷冻水进/回水温度，并计算温差，当温差大于标准温差时认为供应量小于需求量，需增加制冷主机负荷；中央空调冷冻水进/回水温差等于标准温差时认为供应量等于需求量，需保持制冷主机负荷；中央空调冷冻水进/回水温差小于标准温差时认为供应量大于需求量，需减少制冷主机负荷。这种管理方法在一定程度上实现了中央空调的能量自动控制，达到了一定节能降耗的效果，但这些方法局限于冷(热)源中心这一小范围内，存在如下缺点：At present, most of the common large-scale central air conditioners use water as the medium, and the terminal air conditioning system uses fan coil units to exchange energy between the user terminal and the energy center to achieve centralized cooling or heating. At present, the operation of the central air conditioner is basically based on the automatic control of the refrigeration host to realize the adjustment of the energy supply of the air conditioner. Usually, the supply/return water temperature of the chilled water is used as the basis for the load change of the terminal equipment. It is difficult to avoid time lag, which is not conducive to energy saving and consumption reduction. In the actual operation of central air-conditioning, since each area of building air-conditioning is affected by various external and internal factors, the required heat and humidity loads are constantly changing, which requires proper adjustment of various parts of the central air-conditioning system. For a good central air-conditioning system to truly achieve the goal of high efficiency and energy saving, the preliminary design and installation process is only to lay the foundation, the equipment and pipelines are installed in place, and the energy (heat) loss during the transmission process is basically unchanged. However, the key to high efficiency and energy saving lies in the later operation and management. The current application is relatively mature flow/heat control method. Based on the supply and return water temperature of the central air conditioner as the basis for energy demand, the on-demand supply is realized by adjusting the cooling output of the central air conditioner refrigeration main unit. The principle is shown in Figure 3. That is, the traditional margin judgment method used for central air-conditioning energy-saving control: the central air-conditioning detects the temperature of the chilled water inlet/return water, and calculates the temperature difference. When the air-conditioning chilled water inlet/return temperature difference is equal to the standard temperature difference, it is considered that the supply is equal to the demand, and the load of the cooling host needs to be maintained; when the central air-conditioning chilled water inlet/return water temperature difference is less than the standard temperature difference, the supply is considered to be greater than the demand, and the cooling host load needs to be reduced . This management method realizes the energy automatic control of the central air conditioner to a certain extent, and achieves a certain effect of saving energy and reducing consumption, but these methods are limited to the small range of the cold (heat) source center, and have the following disadvantages:
1、中央空调的供、回水温度是中央空调系统能量需求平衡后的剩余量差额的反应，并不是真正的中央空调末端需求量；1. The temperature of the supply and return water of the central air conditioner is the response of the remaining balance after the energy demand of the central air conditioner system is balanced, not the real end demand of the central air conditioner;
2、中央空调的供、回水温度反应变化时间较长，造成自控系统的调节滞后；3、不能保证中央空调系统的临界状态，如蒸发器结冰、高、低压保护等。2. The reaction time of the supply and return water temperature of the central air conditioner is long, which causes the adjustment lag of the automatic control system; 3. The critical state of the central air conditioner system cannot be guaranteed, such as evaporator freezing, high and low pressure protection, etc.
在这方面，有关技术人员进行了一系列有效的探索，中国专利号为01107645.3的一种中央空调智能节能系统，以可编程控制器为核心，通过各传感器检测中央空调系统中的水温和空气温湿度的变化，由存在可编程控制器中的中央空调专家经验知识库及控制程序，通过对环境参数和系统状态进行分析、判断、处理，无级调节冷冻水量、冷却水量和冷却塔风机的转速，使整个中央空调系统在高效率状态下运行，实现最大限度的节能：中国专利号为02133684.9的一种压缩式中央空调自适应变流量节控制系统，由白适应变流量控制器，冷水机控制子系统，冷冻水泵控制子系统，冷却水控制子系统，冷却塔风机控制子系统组成，自适应变流量控制器通过通讯接口分别与系统各控制子系统连接，使系统各设备的各项运行指标达到最优化，使系统处于最佳工作状态，从而达到节能降耗的目的，同时降低设备运行噪声，减少机械磨损、增强了运行安全性，延长了设备寿命。此二者直接控制调节的依据都是通过计量中央空调冷冻水进/出口温差与标准温差的比较来判断末端空气调节系统能量需求量的(即图3所示余量判断法)，同时其追求供需平衡时调节制冷或制热主机产生能量的多少时，并没有考虑系统运行的最佳能效比，因其不是系统终端的实时所需能量，有时这些能量并没有或者不能完全被有效的利用，从而不能达到节能限度的最优化，难以避免存在部分能源浪费。In this regard, relevant technical personnel have carried out a series of effective explorations. The Chinese patent number is 01107645.3, a central air-conditioning intelligent energy-saving system, with a programmable controller as the core, through various sensors to detect the water temperature and air temperature in the central air-conditioning system. Humidity changes, based on the central air-conditioning expert experience knowledge base and control program stored in the programmable controller, through the analysis, judgment, and processing of environmental parameters and system status, the amount of chilled water, cooling water, and cooling tower fan speed can be adjusted steplessly , so that the entire central air-conditioning system operates at a high efficiency state to achieve maximum energy saving: Chinese patent number 02133684.9 is a compression-type central air-conditioning adaptive variable flow control system, which is controlled by a white adaptive variable flow controller and a chiller subsystem, chilled water pump control subsystem, cooling water control subsystem, and cooling tower fan control subsystem. To achieve the optimization, make the system in the best working state, so as to achieve the purpose of saving energy and reducing consumption, while reducing equipment operating noise, reducing mechanical wear, enhancing operational safety, and prolonging equipment life. The basis for direct control and adjustment of the two is to judge the energy demand of the terminal air-conditioning system by comparing the temperature difference between the inlet/outlet of the central air-conditioning chilled water and the standard temperature difference (that is, the margin judgment method shown in Figure 3). When adjusting the amount of energy generated by the cooling or heating host when the supply and demand are balanced, the optimal energy efficiency ratio of the system operation is not considered, because it is not the real-time energy required by the system terminal, and sometimes the energy is not or cannot be fully utilized effectively. Therefore, the optimization of the energy saving limit cannot be achieved, and it is difficult to avoid the waste of some energy.
三、发明内容：本发明利用现有技术和申请人最近获得专利授权的实用新型专利《中央空调计费器》，提出并实现一种全新的中央空调节能智能控制管理系统及控制方法，以中央空调末端设备实时所需能耗为中央空调系统能量供应量的调节依据，以制冷主机最佳能效比运行曲线为调节核心，实现中央空调运行的最佳经济效益，保证中央空调系统能量的供需平衡。3. Contents of the invention: This invention uses the existing technology and the utility model patent "Central Air-conditioning Billing Device" recently obtained by the applicant to propose and realize a new central air-conditioning energy-saving intelligent control management system and control method. The real-time energy consumption required by the air-conditioning terminal equipment is the basis for the adjustment of the energy supply of the central air-conditioning system. The optimal energy efficiency ratio operation curve of the refrigeration host is the adjustment core to achieve the best economic benefits of central air-conditioning operation and ensure the energy supply and demand balance of the central air-conditioning system .
本发明所采用的技术方案：The technical scheme adopted in the present invention:
一种中央空调节能智能控制系统，含有中央空调系统制冷主机、冷冻水系统、冷却水系统和中心监控计算机，以及系统中压缩机、风机、水泵运行状态测控装置、冷/热量传递介质温度、压力、流量测控装置，在中央空调系统中：A central air-conditioning energy-saving intelligent control system, including the central air-conditioning system refrigeration host, chilled water system, cooling water system and central monitoring computer, as well as the compressor, fan, water pump operating state measurement and control device in the system, the temperature and pressure of the cold/heat transfer medium , Flow measurement and control device, in the central air-conditioning system:
(1)在水泵、制冷主机、冷却塔、集水缸、分水缸的进、出水口设置温度传感器，温度传感器输出信号通过多路温度采集模板经总线接口接入中心监控计算机，(1) Install temperature sensors at the inlet and outlet of water pumps, refrigeration hosts, cooling towers, water collection tanks, and water distribution tanks. The output signals of the temperature sensors are connected to the central monitoring computer through the multi-channel temperature acquisition template and the bus interface.
(2)在水泵、制冷主机、冷却塔、集水缸、分水缸的进、出水口设置压力变送器，压力变送器输出信号通过多路压力采集模板经总线接口接入中心监控计算机，(2) Install pressure transmitters at the inlet and outlet of water pumps, refrigeration hosts, cooling towers, water collection tanks, and water distribution tanks. The output signals of pressure transmitters are connected to the central monitoring computer through the multi-channel pressure acquisition template and the bus interface. ,
(3)现场控制采用PLC可编程序控制器，PLC通过制冷主机主控箱的通讯接口控制制冷主机，PLC通过导线连接冷却水泵、冷冻水泵和冷却风机及其变频器控制电路，来控制冷却水泵、冷冻水泵和冷却风机的工作状态，(3) On-site control adopts PLC programmable controller. PLC controls the refrigeration main engine through the communication interface of the main control box of the refrigeration main engine. PLC controls the cooling water pump by connecting the cooling water pump, chilled water pump, cooling fan and its inverter control circuit through wires. , the working status of chilled water pump and cooling fan,
(4)冷水机组主控信号反馈电气连接PLC，冷却水进/出口电动阀门、冷冻水进/出口电动阀门开启度反馈信号通过A/D转换器电气连接PLC，冷水机组压力信号反馈、冷水机组故障反馈、冷却风机过载反馈、水流故障反馈和供电故障反馈电气连接PLC，PLC和中心监控计算机通过总线实现双向通讯，(4) The main control signal feedback of the chiller is electrically connected to the PLC, the feedback signal of the opening degree of the cooling water inlet/outlet electric valve and the chilled water inlet/outlet electric valve is electrically connected to the PLC through the A/D converter, the pressure signal feedback of the chiller, and the chiller Fault feedback, cooling fan overload feedback, water flow fault feedback and power supply fault feedback are electrically connected to PLC, and the PLC and the central monitoring computer realize two-way communication through the bus.
以中央空调末端设备实时所需能耗作为中央空调系统制冷或制热能量供应量的调控依据，以运行状态“逼近”制冷或制热主机最佳能效比运行曲线作为系统运行调控目标，通过综合调节中央空调冷冻水、冷却水的流量、温度和制冷主机压缩机的运行负荷比例，使各用户制冷或制热需求能量之和与中央空调供给能量相平衡，达到中央空调经济运行的最佳状态，以取得能源效益的最大化。The real-time energy consumption required by the central air-conditioning terminal equipment is used as the basis for the regulation of the cooling or heating energy supply of the central air-conditioning system. Adjust the flow rate and temperature of the chilled water and cooling water of the central air conditioner and the operating load ratio of the compressor of the refrigeration host, so that the sum of the energy demanded by each user for cooling or heating is balanced with the energy supplied by the central air conditioner to achieve the best economical operation of the central air conditioner , to maximize energy efficiency.
所述的中央空调节能智能控制系统，中央空调风机盘管连接有中央空调计费器，或者中央空调风机盘管采用智能型风机盘管，计费输出通讯连接中心监控计算机，中心监控计算机实时检测并计算中央空调各用户端总的能量制热量或制冷量需求量之和，放入共享数据库，作为中央空调系统调节的调控依据，供中央空调节能自控管理系统调用；中心监控计算机根据测得的冷冻水进、出口温差及流量按热力学第一定律计算出中央空调系统能量供应量，实时放入共享数据库中，供中央空调节能自控管理系统调用：中心监控计算机自控管理系统实时调用共享数据库中中央空调末端设备实时所需能耗和中央空调系统能量供应量并进行比较，结合预先存入中心监控计算机中的制冷主机制造厂商在设备说明书中提供的制冷主机最佳能效比曲线，作出相应的控制指令，通过PLC现场控制器输出相应控制信号控制风机、水泵变频器运行频率和系统中设备进出口、管道电动阀门开启度，综合调节中央空调冷冻水、冷却水流量、温度和制冷主机压缩机的负荷，使系统设备运行状态“逼近”其最佳能效比曲线，并根据现场检测结果修正操作过程，使制冷主机提供同中央空调用户端实时能量需求相一致的制热量或制冷量输出。In the central air-conditioning energy-saving intelligent control system, the central air-conditioning fan coil is connected to a central air-conditioning meter, or the central air-conditioning fan coil adopts an intelligent fan coil, and the billing output communication is connected to the central monitoring computer, and the central monitoring computer detects in real time And calculate the sum of the total energy heating capacity or cooling capacity demand of each user end of the central air conditioner, put it into the shared database, as the control basis for the adjustment of the central air conditioner system, and call it for the central air conditioner energy saving automatic control management system; the central monitoring computer according to the measured The energy supply of the central air-conditioning system is calculated according to the first law of thermodynamics according to the temperature difference and flow rate between the inlet and outlet of the chilled water, and it is put into the shared database in real time for calling by the central air-conditioning energy-saving automatic control management system: the central monitoring computer automatic control management system calls the central air-conditioning system in the shared database in real time The real-time energy consumption required by the air-conditioning terminal equipment is compared with the energy supply of the central air-conditioning system, and the corresponding control is made in combination with the best energy efficiency ratio curve of the refrigeration host provided by the refrigeration host manufacturer in the equipment manual that is stored in the central monitoring computer in advance Instructions, through the PLC field controller to output corresponding control signals to control the operating frequency of the fan and water pump inverter and the opening degree of the equipment inlet and outlet in the system, and the opening degree of the electric valve of the pipeline, and comprehensively adjust the central air-conditioning chilled water, cooling water flow, temperature and refrigeration host compressor Load, so that the operating state of the system equipment "approaches" its optimal energy efficiency ratio curve, and corrects the operation process according to the on-site test results, so that the refrigeration host can provide heating or cooling output that is consistent with the real-time energy demand of the central air-conditioning user.
所述的中央空调节能智能控制系统，系统中温度、压力、流量、电压、电流测控装置和中心监控计算机以及PLC的连接，采用总线通讯方式，总线通讯方式为CAN总线，或为RS485总线，或RS232总线，或为LONWORK总线。In the central air-conditioning energy-saving intelligent control system, the temperature, pressure, flow, voltage, and current measurement and control devices in the system are connected to the central monitoring computer and PLC, using a bus communication method, and the bus communication method is CAN bus, or RS485 bus, or RS232 bus, or LONWORK bus.
一种前述的中央空调节能智能控制系统的控制方法，在中心监控计算机控制下的运行步骤为，(1)初始化，启动系统，基本参数的调用和录入，A control method of the aforementioned central air-conditioning energy-saving intelligent control system, the operation steps under the control of the central monitoring computer are: (1) initialization, starting the system, calling and typing of basic parameters,
(2)系统检测中央空调用户端是否有风机盘管运行，若没有则关闭所有冷水机组，若有则计算当前风机盘管运行所需的负荷，(2) The system detects whether there is a fan coil running at the user end of the central air conditioner. If not, all chillers are turned off. If so, the load required for the current fan coil operation is calculated.
(3)监测是否有冷水机组运行，若没有则根据计算负荷启动冷水机组，若有则根据所需负荷调节冷水机组运行负荷。(3) Monitor whether there is a chiller running. If not, start the chiller according to the calculated load. If so, adjust the operating load of the chiller according to the required load.
所述的中央空调节能智能控制系统的控制方法，单台中央空调机组按系统实时所需能耗调节，多台机组时遵循以下原则：In the control method of the central air-conditioning energy-saving intelligent control system, a single central air-conditioning unit is adjusted according to the real-time energy consumption required by the system, and the following principles are followed for multiple units:
A、加载时优先运行累计启动时间最少的机组；A. When loading, run the unit with the least accumulative start-up time first;
B、减载时优先停止运行时间最长的机组；B. Priority to stop the unit with the longest running time during load reduction;
C、优先启动容量与实时需求量最接近的机组。C. Prioritize the unit whose capacity is closest to the real-time demand.
本发明的积极有益效果：Positive beneficial effect of the present invention:
1、本发明利用计算机网络与通讯技术结合自动控制技术，首次提出并以中央空调末端设备实时能耗作为中央空调系统能量供应量的依据，并且充分考虑系统的节能效果，提出了以制冷主机最佳能效比曲线为调节核心，是对中央空调传统自控节能管理方法的一次超越，使系统各项运行指标达到最优化，使系统节能降耗效果最大化，同时使系统设备处于最佳运行状态，增强系统运行安全性，延长设备寿命。1. The present invention uses computer network and communication technology combined with automatic control technology to propose for the first time and take the real-time energy consumption of the central air-conditioning terminal equipment as the basis for the energy supply of the central air-conditioning system, and fully consider the energy-saving effect of the system. The energy efficiency ratio curve is the core of the adjustment, which is a transcendence of the traditional self-control energy-saving management method of central air-conditioning, so that the various operating indicators of the system can be optimized, the energy-saving effect of the system can be maximized, and the system equipment can be in the best operating state. Enhance the safety of system operation and prolong the life of equipment.
2、本发明中央空调节能智能控制系统采用集散式结构、模块化设计，各监测子系统向中心监控计算机采用总线通讯方式，有利于安装、施工，关键在于后期的维护和检修相当方便。2. The central air-conditioning energy-saving intelligent control system of the present invention adopts a distributed structure and a modular design. Each monitoring subsystem adopts a bus communication method to the central monitoring computer, which is beneficial to installation and construction. The key is that the later maintenance and repair are quite convenient.
3、本发明中央空调节能智能控制系统现场测量与控制相分离，使控制行动和测量值相互配合印证，方便了解相应指令的执行情况和效果，采用PLC现场监测和控制各相应子系统，使控制执行效率和可靠性大大提高，可利用不同厂家的产品进行组合和替换，有利于系统兼容和扩展，方便维护维修，方便用户优化选型，匹配相对最佳设备及相关产品。3. The on-site measurement and control of the central air-conditioning energy-saving intelligent control system of the present invention are separated, so that the control action and the measured value can be confirmed by mutual cooperation, and it is convenient to understand the execution and effect of the corresponding instructions. The execution efficiency and reliability are greatly improved, and products from different manufacturers can be used for combination and replacement, which is conducive to system compatibility and expansion, convenient maintenance and repair, and convenient for users to optimize model selection and match relatively best equipment and related products.
四、附图说明：4. Description of drawings:
图1：中央空调节能智能控制系统方框结构示意图Figure 1: Schematic diagram of the block structure of the central air-conditioning energy-saving intelligent control system
图2：中央空调节能智能控制系统运行步骤示意图Figure 2: Schematic diagram of the operation steps of the central air-conditioning energy-saving intelligent control system
图3：传统中央空调流量/热量控制法运行步骤示意图Figure 3: Schematic diagram of the operation steps of the traditional central air-conditioning flow/heat control method
图4：开利30HXC300A冷水机组最佳能效比曲线图Figure 4: The optimal energy efficiency ratio curve of Carrier 30HXC300A chiller
五、具体实施方式：5. Specific implementation methods:
实施例一：结合图1，本实施例为某专业写字楼水冷冷水机组中央空调节能智能控制系统具体实施方式。该写字楼建筑面积28000平方米，十六层，A类标准写字间建筑面积38平方米，共416套，每套配一台FP6.3风机盘管；B类标准写字间建筑面积27平方米，共143套，每套配一台FP5.0风机盘管。中央空调制冷站采用三台上海开利30HXC300A冷水机组，三台Y200L型冷却水泵，三台Y200L2型冷冻水泵，一台500吨冷却塔，一台800吨冷却塔，全系统为并联式二用一备设计。Embodiment 1: In combination with FIG. 1, this embodiment is a specific implementation of the energy-saving intelligent control system for the central air-conditioning of a water-cooled chiller unit in a professional office building. The office building has a construction area of 28,000 square meters and 16 floors. The construction area of Class A standard offices is 38 square meters, with a total of 416 sets, each equipped with a FP6.3 fan coil unit; sets, and each set is equipped with a FP5.0 fan coil unit. The central air-conditioning refrigeration station adopts three Shanghai Carrier 30HXC300A chillers, three Y200L cooling water pumps, three Y200L2 chilled water pumps, one 500-ton cooling tower, and one 800-ton cooling tower. ready design.
在中央空调末端每一台风机盘管上设置一只中央空调计费器，并将实时数据传送给中心监控计算机，作为能量需求的依据，在水泵、制冷主机、冷却塔、集水缸、分水缸的进、出水口设置电子温度传感器，通过多路温度采集模板和总线接口接入中心监控计算机，在水泵、制冷主机、冷却塔、集水缸、分水缸的进、出水口设置口压力变送器，通过多路压力采集模板和总线接口接入中心监控计算机，是为系统的监测子系统；现场控制采用PLC可编程序控制器，在冷却水泵、冷冻水泵、冷却塔风机设置变频器，PLC通过制冷主机主控箱的通讯接口控制连接制冷主机，PLC通过导线连接冷却水泵、冷冻水泵和冷却风机及其变频器控制电路，各变频器的主控输出连接冷却塔风机和冷却、冷冻水泵电机，在制冷主机、冷却塔的供/回水管设置旁通电动阀门，在集水缸、分水缸水缸间设置压差旁通电动阀门，是为系统相应的控制子系统，系统冷水机组主控信号反馈电气连接PLC，冷却出口电动阀门、冷冻进出口电动阀门开启度反馈信号通过A/D转换器电气连接PLC，冷水机组压力信号反馈、冷水机组故障反馈、冷却塔风机过载反馈、水流故障反馈和供电故障反馈电气连接PLC，PLC和中心监控计算机连接实现双向通讯，中央空调计费器，或者智能型风机盘管的计费输出和中心监控计算机通讯连接，中心监控计算机含有组态软件，实时检测中央空调末端设备所需能耗，放入共享数据库，作为中央空调系统调节的调节依据，供中央空调节能自控管理系统调用；由主机冷冻水进、出口温差及流量按热力学第一定律计算出中央空调系统能量供应量，实时放入共享数据库中，供中央空调节能自控管理系统调用；中心监控计算机实时检测并计算中中央空调各用户端制热或制冷量需求，实时调用共享数据库中中央空调末端设备实时所需能耗和中央空调系统能量供应量并进行比较，结合预先存入系统软件中的制冷主机最佳能效比曲线，和PLC通讯并通过PLC现场控制器发出相应的控制指令，输出相应控制信号控制控制风机、水泵变频器运行频率和相关设备、管道电动阀门开启度，提供同中央空调用户端实时需求相一致的制热或制冷量输出，中心监控计算机自控管理系统综合调节中央空调冷冻水、冷却水流量、温度和制冷主机压缩机的负荷，使系统设备运行状态“逼近”生产厂家提供最佳能效比曲线，并根据现场检测结果修正操作过程。A central air-conditioning meter is installed on each fan coil at the end of the central air-conditioning, and the real-time data is sent to the central monitoring computer as the basis for energy demand. The water inlet and outlet of the water tank are equipped with electronic temperature sensors, which are connected to the central monitoring computer through a multi-channel temperature acquisition template and bus interface. The pressure transmitter is connected to the central monitoring computer through the multi-channel pressure acquisition template and bus interface, which is the monitoring subsystem of the system; the on-site control adopts PLC programmable controller, and the frequency conversion is set in the cooling water pump, chilled water pump and cooling tower fan The PLC is connected to the refrigeration host through the communication interface of the main control box of the refrigeration host. The PLC is connected to the cooling water pump, chilled water pump, cooling fan and their frequency converter control circuits through wires. The main control output of each frequency converter is connected to the cooling tower fan and cooling, Chilled water pump motor, set bypass electric valve on the supply/return pipe of refrigeration host and cooling tower, and set pressure difference bypass electric valve between water collection tank and water distribution tank, which is for the corresponding control subsystem of the system, the system The main control signal feedback of the chiller is electrically connected to the PLC, the electric valve at the cooling outlet, the opening degree feedback signal of the electric valve at the refrigeration inlet and outlet is electrically connected to the PLC through the A/D converter, the pressure signal feedback of the chiller, the fault feedback of the chiller, and the overload feedback of the cooling tower fan , Water flow failure feedback and power supply failure feedback are electrically connected to PLC, and the PLC is connected to the central monitoring computer to realize two-way communication. State software, real-time detection of energy consumption required by the central air-conditioning terminal equipment, put it into the shared database, as the adjustment basis for the central air-conditioning system adjustment, for the central air-conditioning energy-saving automatic control management system to call; the temperature difference and flow rate between the inlet and outlet of the chilled water of the host are calculated according to the thermodynamics Calculate the energy supply of the central air-conditioning system according to a certain law, and put it into the shared database in real time, which is called by the central air-conditioning energy-saving automatic control management system; the central monitoring computer detects and calculates the heating or cooling capacity demand of each user end of the central air-conditioning in real time, and calls the shared database in real time In the database, the real-time energy consumption required by the central air-conditioning terminal equipment and the energy supply of the central air-conditioning system are compared, and combined with the best energy efficiency ratio curve of the refrigeration host stored in the system software in advance, it communicates with the PLC and sends the corresponding data through the PLC field controller. Control instructions, output corresponding control signals to control the operating frequency of fans, water pumps, frequency converters and related equipment, and the opening degree of electric valves in pipelines, provide heating or cooling output consistent with the real-time needs of central air-conditioning users, and the central monitoring computer self-control management system Comprehensively adjust the central air-conditioning chilled water, cooling water flow, temperature and the load of the refrigeration host compressor, so that the operating state of the system equipment "approaches" the best energy efficiency ratio curve provided by the manufacturer, and corrects the operation process according to the on-site test results.
系统控制过程参见图2，中央空调节能智能控制系统运行步骤：(1)初始化，启动系统，基本参数的调用和录入，The system control process is shown in Figure 2. The operation steps of the central air-conditioning energy-saving intelligent control system: (1) Initialization, starting the system, calling and entering basic parameters,
(2)系统检测中央空调用户端是否有风机盘管运行，若没有则关闭所有冷水机组，若有则计算当前风机盘管运行所需的负荷，(2) The system detects whether there is a fan coil running at the user end of the central air conditioner. If not, all chillers are turned off. If so, the load required for the current fan coil operation is calculated.
(3)监测是否有冷水机组运行，若没有则根据计算负荷启动冷水机组，若有则根据所需负荷调节冷水机组运行负荷。(3) Monitor whether there is a chiller running. If not, start the chiller according to the calculated load. If so, adjust the operating load of the chiller according to the required load.
单台中央空调机组按系统实时所需能耗按上述步骤调节，多台机组时遵循以下原则：(1)加载时优先运行累计启动时间最少的机组；(2)减载时优先停止运行时间最长的机组；(3)优先启动容量与实时需求量最接近的机组。A single central air-conditioning unit is adjusted according to the real-time energy consumption required by the system according to the above steps. When there are multiple units, follow the following principles: (1) The unit with the least cumulative start-up time is given priority to run when loading; (3) Prioritize the unit whose capacity is closest to the real-time demand.
系统中温度、压力、流量、电压、电流测控装置和中心监控计算机以及PLC的连接，采用CAN总线通讯方式，或为RS485总线，RS232总线，或为LONWORK总线，方便系统组合和扩展。The temperature, pressure, flow, voltage and current measurement and control devices in the system are connected with the central monitoring computer and PLC, using CAN bus communication mode, or RS485 bus, RS232 bus, or LONWORK bus, which is convenient for system combination and expansion.
图4所示为生产厂家提供的开利30HXC300A冷水机组最佳能效比曲线图。在系统运行过程中，如当制冷机组输出负荷为86％时能效比最高为4.2，单台制冷量1044Kw，当某一时刻中央空调未端能量需求量是1566Kw，这时有三种控制方案：1、三台制冷机组均以50％的负荷运行，这时的综合能效比是3.65；2、一台制冷机组停止，一台制冷机组100％负荷运行，另一台以50％的负荷运行，这时的中央空调综合能效比是3.89；3、一台制冷机组停止，一台制冷机组75％负荷运行，另一台以75％的负荷运行，这时的中央空调综合能效比是4.16；显然第三种方案是最佳方案，从而实现系统以最佳能效比曲线运行，达到节能效果的最大化、最优化。Figure 4 shows the optimal energy efficiency ratio curve of the Carrier 30HXC300A chiller provided by the manufacturer. During the operation of the system, for example, when the output load of the refrigeration unit is 86%, the highest energy efficiency ratio is 4.2, and the cooling capacity of a single unit is 1044Kw. When the terminal energy demand of the central air conditioner is 1566Kw at a certain moment, there are three control schemes: 1. 1. The three refrigerating units all operate at 50% load, and the comprehensive energy efficiency ratio at this time is 3.65; 2. One refrigerating unit stops, one refrigerating unit operates at 100% load, and the other operates at 50% load. The overall energy efficiency ratio of the central air conditioner at that time was 3.89; 3. One refrigeration unit stopped, one refrigeration unit operated at 75% load, and the other operated at 75% load. At this time, the overall energy efficiency ratio of the central air conditioner was 4.16; obviously the first The three schemes are the best schemes, so as to realize the operation of the system with the best energy efficiency ratio curve and achieve the maximum and optimization of the energy saving effect.
实施例二：为某住宅楼风冷冷热水机组中央空调节能智能控制系统实施例。四栋多层住宅楼每栋七层共16个单元，总建筑面积24240平方米，其中空调面积15756平方米，A型住宅48户，建筑面积135平方米三室两厅，配一台FP6.3风机盘管，三台FP5.0风机盘管，一台FP3.5风机盘管；B型住宅48户，建筑面积110平方米三室两厅，配一台FP6.3风机盘管，两台FP5.0风机盘管，两台FP3.5风机盘管；C型住宅48户，建筑面积85平方米两室两厅，配一台FP6.3风机盘管，两台FP5.0风机盘管，一台FP3.5风机盘管；D型住宅8户，建筑面积240平方米，配2台FP6.3风机盘管，4台FP5.0风机盘管，2台FP3.5风机盘管；共计736台风机盘管。中央空调采用四台北京金万众MTD100SH风冷热泵冷水机组，每栋住宅楼配置一台，每一台中央空调主机配置二台冷冻水泵，一备一用，8台Y200L型冷冻水泵，全系统为并联式二用一备设计。Embodiment 2: It is an embodiment of an energy-saving intelligent control system for a central air-conditioning unit of a residential building with air-cooled and hot-water units. Each of the four multi-storey residential buildings has seven floors and a total of 16 units, with a total construction area of 24,240 square meters, of which the air-conditioning area is 15,756 square meters. There are 48 Type A residences with a construction area of 135 square meters. Three bedrooms and two living rooms are equipped with one FP6.3 Fan coil unit, three FP5.0 fan coil units, one FP3.5 fan coil unit; 48 B-type residences, with a construction area of 110 square meters, three bedrooms and two halls, equipped with one FP6.3 fan coil unit and two FP5 .0 fan coil unit, two FP3.5 fan coil units; 48 C-type residences, with a construction area of 85 square meters, two rooms and two halls, equipped with one FP6.3 fan coil unit, two FP5.0 fan coil units, One FP3.5 fan coil unit; 8 D-type residences with a construction area of 240 square meters, equipped with 2 FP6.3 fan coil units, 4 FP5.0 fan coil units, and 2 FP3.5 fan coil units; total 736 fan coil units. The central air conditioner adopts four Beijing Jinwanzhong MTD100SH air-cooled heat pump chillers, one for each residential building, and two chilled water pumps for each central air conditioner host, one for standby and one for use, and eight Y200L chilled water pumps. The whole system is Parallel two-use and one-standby design.
采用中央空调计费系统，在中央空调末端每一台风机盘管上设置一只中央空调计费器，并将实时数据传送给中心监控计算机，作为能量需求的依据，在水泵、制冷主机、冷却塔、集水缸、分水缸的进、出水口设置电子温度传感器，温度传感器输出信号通过多路温度采集模板经总线接口接入中心监控计算机，在水泵、制冷主机、冷却塔、集水缸、分水缸的进、出水口设置压力变送器，压力变送器输出信号通过多路压力采集模板经总线接口接入中心监控计算机；在冷却水泵、冷冻水泵、冷却塔风机设置变频器，接入相应的控制子系统，在制冷主机、冷却塔的供/回水管设置旁通电动阀门，在集水缸、分水缸水缸间设置压差旁通电动阀门，接入相应的控制子系统，制冷主机主控箱接入相应的控制子系统。所有的监测子系统采用总线通讯方式直接向中心监控计算机上传数据，中心监控计算机依据实时监测的能量需求量、各监测点的数据，按设定的算法以总线通讯方式下达相应的操作指令到现场PLC控制器，现场PLC控制器监测相应的控制子系统来执行中心监控计算机下达的指令，使系统设备以最佳状态下的能效比曲线运行。The central air-conditioning billing system is adopted, and a central air-conditioning billing device is installed on each fan coil unit at the end of the central air-conditioning, and the real-time data is transmitted to the central monitoring computer as the basis for energy demand. The inlet and outlet of the tower, water collection tank and water distribution tank are equipped with electronic temperature sensors, and the output signals of the temperature sensors are connected to the central monitoring computer through the multi-channel temperature acquisition template and the bus interface. , The water inlet and outlet of the water distribution tank are equipped with pressure transmitters, and the output signals of the pressure transmitters are connected to the central monitoring computer through the multi-channel pressure acquisition template and the bus interface; Connect to the corresponding control subsystem, set bypass electric valves on the supply/return pipes of the refrigeration host and cooling tower, set pressure differential bypass electric valves between the water collection tank and water distribution tank, and connect to the corresponding control sub-systems system, the main control box of the refrigeration host is connected to the corresponding control subsystem. All monitoring subsystems use the bus communication method to directly upload data to the central monitoring computer, and the central monitoring computer sends corresponding operation instructions to the site according to the set algorithm and the bus communication method according to the real-time monitored energy demand and the data of each monitoring point PLC controller, the on-site PLC controller monitors the corresponding control subsystem to execute the instructions issued by the central monitoring computer, so that the system equipment operates with the energy efficiency ratio curve in the best state.
有关控制管理步骤参见实施例一，在此不再重述。中央空调风机盘管或采用智能型风机盘管，计费输出接入中心监控计算机。For the relevant control and management steps, please refer to
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100173497ACN100487332C (en) | 2005-01-28 | 2005-01-28 | Energy-saving intelligent control system for central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100173497ACN100487332C (en) | 2005-01-28 | 2005-01-28 | Energy-saving intelligent control system for central air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1654893A CN1654893A (en) | 2005-08-17 |
| CN100487332Ctrue CN100487332C (en) | 2009-05-13 |
Family
ID=34894220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100173497AExpired - Fee RelatedCN100487332C (en) | 2005-01-28 | 2005-01-28 | Energy-saving intelligent control system for central air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100487332C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080863A (en)* | 2010-12-08 | 2011-06-01 | 海尔集团公司 | Control method and device of central air conditioner |
Families Citing this family (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7412842B2 (en) | 2004-04-27 | 2008-08-19 | Emerson Climate Technologies, Inc. | Compressor diagnostic and protection system |
| US7275377B2 (en) | 2004-08-11 | 2007-10-02 | Lawrence Kates | Method and apparatus for monitoring refrigerant-cycle systems |
| US20090037142A1 (en) | 2007-07-30 | 2009-02-05 | Lawrence Kates | Portable method and apparatus for monitoring refrigerant-cycle systems |
| CN100501280C (en)* | 2007-07-31 | 2009-06-17 | 四川长虹电器股份有限公司 | Water chilling unit control system and its control method |
| US7895003B2 (en) | 2007-10-05 | 2011-02-22 | Emerson Climate Technologies, Inc. | Vibration protection in a variable speed compressor |
| US9541907B2 (en)* | 2007-10-08 | 2017-01-10 | Emerson Climate Technologies, Inc. | System and method for calibrating parameters for a refrigeration system with a variable speed compressor |
| US8459053B2 (en) | 2007-10-08 | 2013-06-11 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
| US8539786B2 (en)* | 2007-10-08 | 2013-09-24 | Emerson Climate Technologies, Inc. | System and method for monitoring overheat of a compressor |
| US9140728B2 (en) | 2007-11-02 | 2015-09-22 | Emerson Climate Technologies, Inc. | Compressor sensor module |
| CN101339430B (en)* | 2007-12-31 | 2011-06-08 | 重庆惠朗科技有限公司 | Indoor electric appliance energy-saving intelligent monitoring system |
| CN101581491B (en)* | 2009-06-12 | 2012-06-13 | 重庆贻科科技有限公司 | Load control energy-saving system of central air conditioning system |
| CN101603751B (en)* | 2009-07-15 | 2013-07-10 | 北京科技大学 | Variable frequency energy-saving control method for refrigeration system |
| CN101769586B (en)* | 2010-02-04 | 2013-02-06 | 无锡永信能源科技有限公司 | Cold (warm) water circulation energy efficiency control method for central air-conditioning system |
| CN101825326B (en)* | 2010-04-30 | 2012-07-04 | 河海大学常州校区 | Fuzzy adaptive central air-conditioning cooling water energy-saving control system and fuzzy adaptive method thereof |
| CN101881944A (en)* | 2010-06-18 | 2010-11-10 | 北京斯普信电子技术有限公司 | Energy consumption integrated control system and method |
| CN101922781A (en)* | 2010-07-28 | 2010-12-22 | 重庆市同方科技发展有限公司 | Controlled environment temperature and humidity regulation based air conditioner energy saving control method and system |
| CN101922783A (en)* | 2010-07-28 | 2010-12-22 | 重庆市同方科技发展有限公司 | Enthalpy control-based method and system for controlling energy conservation of air conditioner |
| CN101968250B (en)* | 2010-10-13 | 2012-12-05 | 濠信节能科技(上海)有限公司 | Energy-saving optimized control system and method for refrigerator room |
| CN102072550A (en)* | 2011-01-28 | 2011-05-25 | 南京丰盛新能源科技股份有限公司 | Intelligent control device suitable for group control of equipment in air-conditioning machine room |
| CA2934860C (en) | 2011-02-28 | 2018-07-31 | Emerson Electric Co. | Residential solutions hvac monitoring and diagnosis |
| CN102147143B (en)* | 2011-04-06 | 2013-06-12 | 深圳达实智能股份有限公司 | On-off optimization control method and device of central air-conditioning system |
| CN102367980B (en)* | 2011-10-19 | 2014-04-30 | 深圳市奥宇控制系统有限公司 | Central air-conditioning multi-dimension integrating optimization control system and method |
| CN102410680B (en)* | 2011-10-30 | 2013-06-19 | 合肥天鹅制冷科技有限公司 | Method for controlling thermal load response of water chilling unit |
| CN102418988A (en)* | 2011-12-09 | 2012-04-18 | 朱建斌 | Energy-saving monitoring and management system for air conditioner |
| CN103375878B (en)* | 2012-04-26 | 2016-07-06 | 上海宝信软件股份有限公司 | A kind of central air-conditioning freezing unit group control method |
| CN102692066B (en)* | 2012-06-14 | 2014-11-26 | 四川长虹空调有限公司 | Fault diagnosis control system for variable-frequency air conditioner and control method of fault diagnosis control system |
| EP2971989A4 (en) | 2013-03-15 | 2016-11-30 | Emerson Electric Co | DIAGNOSTICS AND SYSTEM FOR HEATING, VENTILATION AND AIR CONDITIONING REMOTE MONITORING |
| US9803902B2 (en) | 2013-03-15 | 2017-10-31 | Emerson Climate Technologies, Inc. | System for refrigerant charge verification using two condenser coil temperatures |
| WO2014165731A1 (en) | 2013-04-05 | 2014-10-09 | Emerson Electric Co. | Heat-pump system with refrigerant charge diagnostics |
| CN104279692A (en)* | 2013-07-12 | 2015-01-14 | 深圳市嘉顺达环保节能科技有限公司 | Energy-saving control method and energy-saving control system for energy consumption track of central air conditioner |
| CN103528168B (en)* | 2013-11-01 | 2016-09-14 | 珠海格力电器股份有限公司 | Air conditioning system operation control method, device, system host and air conditioning system |
| CN104728988B (en)* | 2013-12-18 | 2017-08-01 | 珠海格力电器股份有限公司 | Air conditioner and communication method, device and equipment for indoor unit and outdoor unit of air conditioner |
| CN104633857B (en)* | 2014-10-16 | 2018-04-10 | 联和环保科技有限公司 | Air conditioner energy-saving optimization control method and device |
| CN104406276A (en)* | 2014-12-12 | 2015-03-11 | 常熟市兴华机电设备安装工程有限责任公司 | Intelligent control system of central air conditioner |
| CN105042780A (en)* | 2015-07-23 | 2015-11-11 | 魏强 | Central-air-conditioner control system |
| CN105046595B (en)* | 2015-07-24 | 2021-12-28 | 武汉泰康翔科技股份有限公司 | Energy efficiency assessment and diagnosis cloud system and method based on Internet of things technology |
| CN106765860B (en)* | 2015-11-25 | 2019-10-08 | 中广核工程有限公司 | A kind of control system and method for nuclear power station central air-conditioning |
| US12078378B1 (en) | 2016-09-02 | 2024-09-03 | John R. Williams | Continuously variable chiller and control systems, methods, and apparatuses |
| CN106440111B (en)* | 2016-09-28 | 2019-08-20 | 珠海格力电器股份有限公司 | Central air-conditioning cold station system and water system topological graph construction method |
| CN106765921A (en)* | 2016-12-08 | 2017-05-31 | 杭州浙鼎新材料科技有限公司 | Intelligent air condition detecting system and its method for visualizing |
| CN106801975A (en)* | 2016-12-28 | 2017-06-06 | 杭州裕达自动化科技有限公司 | Refrigeration host computer Intelligentized control method in central air-conditioning monitoring system |
| CN106885350A (en)* | 2017-04-17 | 2017-06-23 | 嘉鸿（上海）信息科技咨询有限公司 | A kind of air conditioner energy conservation control system |
| CN107289681B (en)* | 2017-06-23 | 2019-11-08 | 麦克维尔空调制冷(武汉)有限公司 | A kind of water cooler control method of refrigerant flow |
| CN109425072A (en)* | 2017-08-18 | 2019-03-05 | 茂盟（上海）工程技术股份有限公司 | A kind of energy-saving control system and control method |
| CN107560122B (en)* | 2017-09-12 | 2020-02-07 | 深圳达实智能股份有限公司 | Method and device for zoned air supply of fan coil in hospital ward |
| CN109028254A (en)* | 2018-08-10 | 2018-12-18 | 天津六百光年智能科技有限公司 | A kind of method and system that comprehensive energy efficiently utilizes |
| CN109307351A (en)* | 2018-09-17 | 2019-02-05 | 北京华清元泰新能源技术开发有限公司 | A kind of efficient synthesis energy saving control system for heat pump |
| CN109798581B (en)* | 2019-01-25 | 2021-06-18 | 青岛海信日立空调系统有限公司 | Control method of multiple air source heat pump units and air source heat pump system |
| US11206743B2 (en) | 2019-07-25 | 2021-12-21 | Emerson Climate Technolgies, Inc. | Electronics enclosure with heat-transfer element |
| CN110332848A (en)* | 2019-08-08 | 2019-10-15 | 长江慧控科技(武汉)有限公司 | A kind of cooling tower energy conservation increasing longevity control method, device and equipment based on BA |
| CN110848889A (en)* | 2019-11-14 | 2020-02-28 | 南京亚派软件技术有限公司 | Method for evaluating operation energy efficiency of main unit of central air-conditioning system |
| CN113446766B (en)* | 2020-03-25 | 2022-04-22 | 青岛海尔空调电子有限公司 | Control method of water chilling unit |
| CN112556100A (en)* | 2020-11-27 | 2021-03-26 | 南京雪极空调设备有限公司 | Central air conditioning group data acquisition device based on PLC protocol |
| CN116147145A (en)* | 2021-02-22 | 2023-05-23 | 建科环能科技有限公司 | Self-adaptive control system and self-adaptive control method for air conditioner energy station |
| CN113757944B (en)* | 2021-09-24 | 2022-11-11 | 广东电网有限责任公司 | Air conditioning system fault diagnosis method and system based on air conditioning system model |
| CN114963631B (en)* | 2022-05-25 | 2023-08-15 | 珠海格力电器股份有限公司 | Control method and control device of refrigerating system and refrigerating system |
| CN115388569A (en)* | 2022-06-14 | 2022-11-25 | 比艾克莱检测技术(上海)有限公司 | Refrigerating device based on weight calculation and control method thereof |
| CN114857744B (en)* | 2022-06-23 | 2024-06-18 | 湖北华工能源股份有限公司 | Method for quantitatively measuring and calculating energy saving and consumption reduction values of central air conditioner |
- 2005
- 2005-01-28CNCNB2005100173497Apatent/CN100487332C/ennot_activeExpired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080863A (en)* | 2010-12-08 | 2011-06-01 | 海尔集团公司 | Control method and device of central air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1654893A (en) | 2005-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100487332C (en) | Energy-saving intelligent control system for central air conditioner | |
| CN2898692Y (en) | Intelligent energy-saving control system of central air conditioner | |
| CN105546759B (en) | A kind of central air conditioning energy-saving control system and its control strategy | |
| CN100443814C (en) | Adjustment method of regional central cooling cooling capacity adjustment system | |
| CN201589376U (en) | Central air-conditioning variable water volume and variable air volume whole group-control energy saving system | |
| CN115823706B (en) | Self-adaptive variable pressure difference energy-saving control system and method for primary pump | |
| CN110895016A (en) | Fuzzy self-adaptive based energy-saving group control method for central air-conditioning system | |
| CN201637037U (en) | Control device for air-conditioning unit | |
| CN101216207B (en) | 26 degree central air-conditioning intelligent energy-saving management system | |
| CN101922781A (en) | Controlled environment temperature and humidity regulation based air conditioner energy saving control method and system | |
| CN101922783A (en) | Enthalpy control-based method and system for controlling energy conservation of air conditioner | |
| CN101655272A (en) | Energy-saving control management system of network central air conditioner and method thereof | |
| CN101017021A (en) | Intelligent cluster control system of central air-conditioning | |
| CN102062459A (en) | Energy-saving control system of central air conditioner | |
| CN204943795U (en) | A kind of central air conditioner room efficiency optimization system | |
| CN212132815U (en) | Intelligent cold station control system | |
| CN200975766Y (en) | Cold quantity regulation system of region centralization cold feeding | |
| CN111427268A (en) | Coal mine energy optimization control system and optimization control method | |
| CN105115113A (en) | Energy efficiency optimizing system of central air-conditioner room | |
| CN112050272A (en) | Refined control technology of distributed cooling/heating system | |
| CN217109938U (en) | Air conditioner energy efficiency analysis and adjustment system | |
| CN204880344U (en) | Cloud calculates timesharing and divides temperature controlling means and system distinguished based on mobile terminal | |
| CN107036231A (en) | Cooling tower intelligent energy-saving control method in central air-conditioning monitoring system | |
| CN203443026U (en) | Control system for ice storage refrigeration plant room | |
| CN210441402U (en) | Automatic control device of air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right | Owner name:ZHENGZHOU CHUNQUAN HVAC ENERGY-SAVING EQUIPMENT CO Free format text:FORMER OWNER: YANG DONG Effective date:20100707 Free format text:FORMER OWNER: LI YAN | |
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data | Free format text:CORRECT: ADDRESS; FROM: 450004 TOWER E, ZIDING BUSINESS BUILDING 6, NO.51, ZIJINGSHAN ROAD, ZHENGZHOU CITY, HENAN PROVINCE TO: NO.6, CUIZHU STREET, NEW + HIGH TECHNOLOGY INDUSTRY ZONE, ZHENGZHOU CITY, HENAN PROVINCE | |
| TR01 | Transfer of patent right | Effective date of registration:20100707 Address after:High tech Zone in Henan city of Zhengzhou Province bamboo Street No. 6 Patentee after:ZHENGZHOU CHUNQUAN HVAC ENERGY SAVING EQUIPMENT Co.,Ltd. Address before:450004, Zhengzhou, Henan Province, 51 Bauhinia Road, purple Ting business, 6 floor, block E Co-patentee before:Li Yan Patentee before:Yang Dong | |
| C56 | Change in the name or address of the patentee | Owner name:ZHENGZHOU CHUNQUAN ENERGY-SAVING CO., LTD. Free format text:FORMER NAME: CHUNQUAN NUANTONG ENERGY SAVING EQUIPMENT CO., LTD., ZHENGZHOU | |
| CP03 | Change of name, title or address | Address after:450001 Henan Province, Zhengzhou high tech Development Zone Chuk Street No. 6 Building 1 1 unit 8 floor No. 13 Patentee after:ZHENGZHOU CHUNQUAN ENERGY-SAVING Co.,Ltd. Address before:High tech Zone in Henan city of Zhengzhou Province bamboo Street No. 6 Patentee before:ZHENGZHOU CHUNQUAN HVAC ENERGY SAVING EQUIPMENT Co.,Ltd. | |
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20090513 | |
| CF01 | Termination of patent right due to non-payment of annual fee |