技术领域technical field
本实用新型涉及空调制冷技术领域，尤其涉及一种模块式露点间接蒸发冷却与机械制冷复合空调机组。The utility model relates to the technical field of air conditioning and refrigeration, in particular to a modular dew point indirect evaporative cooling and mechanical refrigeration composite air conditioning unit.
背景技术Background technique
目前，我国能源消耗较大，已经出现不同程度的能源短缺。在夏季，人们为了营造一个凉爽的环境，需要开启空调来满足室内的温湿度要求。传统空调使用机械压缩制冷，主要使用氟利昂等制冷剂，不仅对环境产生危害，而且工作时需要消耗大量的电能。我国夏季多省份出现了不同程度的“拉闸限电”现象，城市供电压力紧张。另外，传统的空调不断地使用室内回风，长期待在这种环境下容易得空调病。At present, my country's energy consumption is relatively large, and energy shortages have occurred to varying degrees. In summer, in order to create a cool environment, people need to turn on the air conditioner to meet the indoor temperature and humidity requirements. Traditional air conditioners use mechanical compression refrigeration, mainly using refrigerants such as Freon, which not only harms the environment, but also consumes a lot of electricity when working. In summer, many provinces in our country have experienced different degrees of "power cuts" phenomenon, and the pressure on urban power supply is tense. In addition, the traditional air conditioner constantly uses the indoor return air, and it is easy to get air-conditioning disease in this environment for a long time.
目前，蒸发冷却空调技术利用水作为制冷剂，具有节能、环保、健康、仿生及空气品质良好的特点，该技术已经在我国纺织、机房、地铁、发电厂、家庭等行业领域有所应用。为了进一步提高蒸发冷却降温幅度，开发出露点间接蒸发冷却空调技术，其利用干球温度和露点温度之差作为驱动势，能够将空气温度逼近露点温度，同时保证空气含湿量不变。国内外针对露点间接蒸发冷却空调技术，开发出了多款露点间接蒸发冷却器。At present, evaporative cooling air-conditioning technology uses water as a refrigerant, which has the characteristics of energy saving, environmental protection, health, bionics and good air quality. This technology has been applied in my country's textile, computer room, subway, power plant, household and other industries. In order to further increase the cooling range of evaporative cooling, dew point indirect evaporative cooling air conditioning technology has been developed, which uses the difference between dry bulb temperature and dew point temperature as the driving force to bring the air temperature close to the dew point temperature while keeping the air humidity constant. Aiming at the dew point indirect evaporative cooling air conditioning technology at home and abroad, a variety of dew point indirect evaporative coolers have been developed.
机械制冷系统由于具有稳定性高、技术成熟、使用寿命较长等优点，在世界范围内得到了广泛的应用。但是，机械制冷系统在运行中消耗大量的电能，并且排放了大量的氯氟烃类温室气体，到目前为止还未找到理想的替代工质。Due to the advantages of high stability, mature technology and long service life, the mechanical refrigeration system has been widely used in the world. However, the mechanical refrigeration system consumes a large amount of electric energy during operation and emits a large amount of chlorofluorocarbon greenhouse gases, so far no ideal alternative working fluid has been found.
基于以上背景，将模块式露点间接蒸发冷却器、机械制冷系统组合在一起，提出一种模块式露点间接蒸发冷却与机械制冷复合空调机组，既能发挥蒸发冷却最大的降温潜能，同时用机械制冷辅助，保证运行稳定性，具有节能、环保、经济、运行稳定的特点。Based on the above background, combining the modular dew point indirect evaporative cooler and mechanical refrigeration system together, a modular dew point indirect evaporative cooling and mechanical refrigeration composite air conditioning unit is proposed, which can not only exert the maximum cooling potential of evaporative cooling, but also use mechanical refrigeration Auxiliary to ensure the stability of operation, with the characteristics of energy saving, environmental protection, economy and stable operation.
发明内容Contents of the invention
本实用新型克服了上述现有技术的不足，提供了一种模块式露点间接蒸发冷却与机械制冷复合空调机组。本实用新型采用立式结构，结构紧凑，简单实用，充分利用了室内回风的冷量，使蒸发冷却技术不仅应用于气候干燥地区，而且扩展到中、高湿度地区。The utility model overcomes the shortcomings of the above-mentioned prior art, and provides a modular dew point indirect evaporative cooling and mechanical refrigeration composite air conditioner unit. The utility model adopts a vertical structure, compact structure, simple and practical, and fully utilizes the cooling capacity of the indoor return air, so that the evaporative cooling technology is not only applied to dry climate areas, but also extended to medium and high humidity areas.
实用新型技术方案：Utility model technical solution:
一种模块式露点间接蒸发冷却与机械制冷复合空调机组，包括机组壳体，所述机组壳体的同一侧外壁上分别设有送风口和第一排风口，所述机组壳体底部设置有第二排风口和进风口，机组壳体顶部设置有第三排风口；A modular dew point indirect evaporative cooling and mechanical refrigeration composite air conditioner unit, comprising a unit shell, an air supply port and a first air exhaust port are respectively arranged on the outer wall of the same side of the unit shell, and the bottom of the unit shell is provided with The second air outlet and air inlet, the top of the unit shell is provided with the third air outlet;
所述机组壳体内沿室外新风进入后流动方向依次设置有进风口、第一过滤器、全热交换器、空气混合段、送风机、露点间接蒸发冷却器、蒸发器和送风口；The air inlet, the first filter, the total heat exchanger, the air mixing section, the air blower, the dew point indirect evaporative cooler, the evaporator and the air supply port are sequentially arranged in the casing of the unit along the flow direction after the outdoor fresh air enters;
露点间接蒸发冷却器的上部设置有布水器、排风机和第三排风口，所述机组壳体内按室内回风流动方向依次设置有回风口、第二过滤器和回风机，回风机的第一部分回风经过全热交换器由第二排风口排出，第二部分回风经过风量调节阀进入空气混合段与新风混合，第三部分回风经过水箱中的螺旋管换热器由第一排风口排出，水箱布置于露点间接蒸发冷却器下方；The upper part of the dew point indirect evaporative cooler is provided with a water distributor, an exhaust fan and a third air outlet, and the casing of the unit is provided with a return air outlet, a second filter and a return fan in sequence according to the flow direction of the indoor return air. The first part of the return air passes through the total heat exchanger and is discharged from the second air outlet, the second part of the return air passes through the air volume regulating valve and enters the air mixing section to be mixed with the fresh air, and the third part of the return air passes through the spiral tube heat exchanger in the water tank and is discharged from the second part. A row of air outlets are discharged, and the water tank is arranged under the dew point indirect evaporative cooler;
机械制冷冷风机组由压缩机、冷凝器、膨胀阀、蒸发器依次连接构成回路；冷凝器置于水箱内，所述露点间接蒸发冷却器与所述机械制冷冷风机组通过管路相连接。The mechanical refrigeration air-cooling unit is connected in sequence by a compressor, a condenser, an expansion valve, and an evaporator to form a circuit; the condenser is placed in the water tank, and the dew point indirect evaporative cooler is connected to the mechanical refrigeration air-cooling unit through pipelines.
进一步地：所述的露点间接蒸发冷却器上方连接布水器，所述的露点间接蒸发冷却器下方连接水箱，所述水箱内设置管道通过水泵与布水器相连接，所述冷凝器设置于水箱中。Further: the water distributor is connected above the dew-point indirect evaporative cooler, and the water tank is connected below the dew-point indirect evaporative cooler, and the pipeline in the water tank is connected to the water distributor through a water pump, and the condenser is arranged at in the tank.
进一步地：所述的全热交换器与回风机的出风口和空气混合段相连通。Further: the total heat exchanger communicates with the air outlet of the return fan and the air mixing section.
进一步地：所述的送风机与回风机选用直流无蜗壳风机。Further: the air blower and the return air blower are DC fans without volute.
进一步地：所述的风量调节阀为电动风量调节阀。Further: the air volume regulating valve is an electric air volume regulating valve.
进一步地：所述螺旋管换热器设置于水箱中。Further: the spiral tube heat exchanger is arranged in the water tank.
进一步地：所述复合空调机组设置有PLC控制器，用于整个空调机组的自动控制。Further: the composite air-conditioning unit is provided with a PLC controller for automatic control of the entire air-conditioning unit.
本实用新型对于现有技术具有以下有益效果：本实用新型公开的将露点间接蒸发冷却机组与机械制冷机组集成在同一机壳内，采用立式结构，结构紧凑，简单实用；可根据实际冷量需求开启相应的模块，提高运行期间的稳定性和可靠性；与单独采用机械制冷机组比较，可以取得较好的节能效果和更高的环境效益；将冷凝器设置在水箱内既可以利用免费的冷量，又可以使得结构紧凑；将螺旋管换热器设置在水箱内可以利用室内回风对水箱中的水进行冷却；利用室内回风，采用全热交换器对新风进行预冷，实现高效热回收；利用电动风量调节阀，可以控制新风与回风的混合比例，有较好的节能效果；采用无蜗壳风机，工作效率高且相对其它风机体积更小；采用PLC自动控制系统，控制稳定可靠且节能。The utility model has the following beneficial effects on the prior art: the utility model integrates the dew point indirect evaporative cooling unit and the mechanical refrigeration unit in the same casing, adopts a vertical structure, is compact in structure, simple and practical; The corresponding modules need to be turned on to improve the stability and reliability during operation; compared with the single use of mechanical refrigeration units, better energy-saving effects and higher environmental benefits can be achieved; setting the condenser in the water tank can take advantage of free The cooling capacity can also make the structure compact; the spiral tube heat exchanger can be installed in the water tank to use the indoor return air to cool the water in the water tank; the indoor return air can be used to pre-cool the fresh air with a full heat exchanger to achieve high efficiency. Heat recovery; the electric air volume control valve can be used to control the mixing ratio of fresh air and return air, which has a good energy-saving effect; the use of a volute-free fan has high working efficiency and is smaller than other fans; the PLC automatic control system is used to control Stable, reliable and energy-saving.
附图说明Description of drawings
图1是本实用新型实施例的结构示意图；Fig. 1 is the structural representation of the utility model embodiment;
图中1-进风口；201-第一过滤器；202-第二过滤器；3-全换热器；41-第一排风口；42-第二排风口；43-第三排风口；5-风量调节阀；6-回风机；7-空气混合段；8-回风口；9-送风机；10-PLC控制器；11-露点间接蒸发冷却器；12-排风机；13-布水器；14-蒸发器；15-送风口；16-膨胀阀；17-水泵；18-水箱；19-冷凝器；20-螺旋管换热器；21-压缩机；22-机组壳体。In the figure 1-air inlet; 201-first filter; 202-second filter; 3-full heat exchanger; 41-first air outlet; 42-second air outlet; 43-third air outlet 5-air volume regulating valve; 6-return fan; 7-air mixing section; 8-return air outlet; 9-supply fan; 10-PLC controller; 11-dew point indirect evaporative cooler; Water heater; 14-evaporator; 15-air outlet; 16-expansion valve; 17-water pump; 18-water tank; 19-condenser; 20-coil heat exchanger; 21-compressor; 22-unit shell.
具体实施方式detailed description
以下将结合附图对本实用新型进行详细说明。The utility model will be described in detail below in conjunction with the accompanying drawings.
在图1中，本实用新型公开的一种模块式露点间接蒸发冷却与机械制冷复合空调机组，包括机组壳体22，所述机组壳体22的同一侧外壁上分别设有送风口15和第一排风口41，所述机组壳体22底部设置有第二排风口42和进风口1，机组壳体22顶部设置有第三排风口43；In Fig. 1, a modular dew point indirect evaporative cooling and mechanical refrigeration composite air conditioning unit disclosed by the utility model includes a unit casing 22, and the outer wall of the same side of the unit casing 22 is respectively provided with an air supply port 15 and a second An air outlet 41, the bottom of the unit housing 22 is provided with a second air outlet 42 and an air inlet 1, and the top of the unit housing 22 is provided with a third air outlet 43;
所述机组壳体22内沿室外新风进入后流动方向依次设置有进风口1、第一过滤器201、全热交换器3、空气混合段7、送风机9、露点间接蒸发冷却器11、蒸发器14和送风口15；The air inlet 1, the first filter 201, the total heat exchanger 3, the air mixing section 7, the blower 9, the dew point indirect evaporative cooler 11, the evaporator 14 and air supply port 15;
露点间接蒸发冷却器11的上部设置有布水器13、排风机12和第三排风口43，所述机组壳体内按室内回风流动方向依次设置有回风口8、第二过滤器202和回风机6，回风机的第一部分回风经过全热交换器3由第二排风口42排出，第二部分回风经过风量调节阀5进入空气混合段7与新风混合，第三部分回风经过水箱18中的螺旋管换热器20由第一排风口41排出，水箱18布置于露点间接蒸发冷却器11下方；The upper part of the dew point indirect evaporative cooler 11 is provided with a water distributor 13, an exhaust fan 12 and a third air outlet 43, and the unit casing is provided with a return air outlet 8, a second filter 202 and a Return fan 6, the first part of the return air of the return fan passes through the total heat exchanger 3 and is discharged from the second air outlet 42, the second part of the return air passes through the air volume regulating valve 5 and enters the air mixing section 7 to mix with fresh air, and the third part of the return air After passing through the spiral tube heat exchanger 20 in the water tank 18, it is discharged from the first air outlet 41, and the water tank 18 is arranged below the dew point indirect evaporative cooler 11;
机械制冷冷风机组由压缩机21、冷凝器19、膨胀阀16、蒸发器14依次连接构成回路；冷凝器19置于水箱18内，所述露点间接蒸发冷却器与所述机械制冷冷风机组通过管路相连接。The mechanical refrigeration air-cooling unit is connected in turn by a compressor 21, a condenser 19, an expansion valve 16, and an evaporator 14 to form a circuit; Road connected.
具体地，露点间接蒸发冷却器11上方连接布水器13，所述的露点间接蒸发冷却器下方连接水箱18，水箱18内设置管道通过水泵17与布水器13相连接，所述冷凝器19设置于水箱18中，优选地，既利用循环水对其冷却又可以使得结构紧凑。Specifically, the water distributor 13 is connected above the dew point indirect evaporative cooler 11, and the water tank 18 is connected below the dew point indirect evaporative cooler. The pipelines in the water tank 18 are connected to the water distributor 13 through the water pump 17, and the condenser 19 It is arranged in the water tank 18, preferably, it can be cooled by circulating water and the structure can be made compact.
具体地，全热交换器3与回风机6的出风口和空气混合段7相连通，优选地，利用室内回风对新风进行预冷。Specifically, the total heat exchanger 3 communicates with the air outlet of the return fan 6 and the air mixing section 7, preferably, the indoor return air is used to precool the fresh air.
具体地，螺旋管换热器20设置于水箱18中，优选地，利用室内回风对循环水进行冷却，采用螺旋管可以增大换热面积，使得换热更加充分。Specifically, the spiral tube heat exchanger 20 is arranged in the water tank 18. Preferably, the indoor return air is used to cool the circulating water. The use of the spiral tube can increase the heat exchange area and make the heat exchange more sufficient.
具体地，送风机9与回风机6选用直流无蜗壳风机，优选地，体积小且效率高。Specifically, the air blower 9 and the return air blower 6 are DC fans without volute, preferably with small volume and high efficiency.
具体地，风量调节阀5为电动风量调节阀，优选地，方便地控制新风与回风的混合比例。Specifically, the air volume regulating valve 5 is an electric air volume regulating valve, preferably, it is convenient to control the mixing ratio of fresh air and return air.
具体地，所述螺旋管换热器20设置于水箱18中。Specifically, the spiral tube heat exchanger 20 is disposed in the water tank 18 .
具体地，复合空调机组由PLC控制器10进行控制，优选地，该控制器具有可靠性好、性价比高、使用方便等优点，适用于整个空调机组的自动控制。PLC控制器为现有技术，本领域的技术人员可以根据所需功能自行选用适用于本机组的PLC控制器。Specifically, the composite air-conditioning unit is controlled by a PLC controller 10. Preferably, the controller has the advantages of good reliability, high cost performance, and convenient use, and is suitable for automatic control of the entire air-conditioning unit. The PLC controller is an existing technology, and those skilled in the art can select the PLC controller suitable for this unit according to the required functions.
夏季空气处理的工作过程：室外新风从进风口1进入，经过第一过滤器201进入全热交换器3进行预冷后与经过风量调节阀5的回风在空气混合段7中充分混合后，由送风机9送入露点间接蒸发冷却器11，经等湿降温后进入蒸发器14，最终经送风口15送至空调房间。露点间接蒸发冷却器11的二次空气经过湿通道由排风机12经排风口43排至室外。室内回风由回风口8进入，经过第二滤器202由回风机6排出的回风分为三部分，第一部分回风经过全热交换器3由第二排风口42排出，第二部分回风经过风量调节阀5进入空气混合段7与新风混合，第三部分回风经过水箱18中的螺旋管换热器20由第一排风口41排出。The working process of summer air treatment: outdoor fresh air enters from the air inlet 1, passes through the first filter 201 and enters the total heat exchanger 3 for pre-cooling, and then fully mixes with the return air passing through the air volume regulating valve 5 in the air mixing section 7, It is sent to the dew point indirect evaporative cooler 11 by the air blower 9, enters the evaporator 14 after isohumidity cooling, and is finally sent to the air-conditioned room through the air outlet 15. The secondary air of the dew point indirect evaporative cooler 11 is discharged to the outside by the exhaust fan 12 through the air outlet 43 through the wet passage. The indoor return air enters from the return air outlet 8, and the return air discharged by the return fan 6 through the second filter 202 is divided into three parts. The first part of the return air passes through the total heat exchanger 3 and is discharged from the second air outlet 42, and the second part returns The wind enters the air mixing section 7 through the air volume regulating valve 5 to mix with the fresh air, and the third part of return air passes through the spiral tube heat exchanger 20 in the water tank 18 and is discharged from the first air outlet 41 .
在过渡季节时，关闭露点间接蒸发冷却机组与机械制冷机组，全新风运行。新风经进风口1进入机组，经过第一过滤器201过滤后，由送风机9经送风口15送至室内。In the transitional season, turn off the dew point indirect evaporative cooling unit and the mechanical refrigeration unit, and run with fresh air. The fresh air enters the unit through the air inlet 1, and after being filtered by the first filter 201, is sent to the room by the blower 9 through the air outlet 15.
当室外气象条件满足要求时，机械制冷机组停止运行，只运行露点间接蒸发冷却机组。机组的启停、新风与回风的混合比例及进风口与回风口的启闭由PLC控制器进行自动控制。When the outdoor meteorological conditions meet the requirements, the mechanical refrigeration unit stops running, and only the dew point indirect evaporative cooling unit operates. The start and stop of the unit, the mixing ratio of fresh air and return air, and the opening and closing of the air inlet and return air are automatically controlled by the PLC controller.
本实用新型将露点间接蒸发冷却机组与机械制冷机组集成在同一机壳内，可以弥补蒸发冷却的弱点，提高系统的稳定性，扩展其应用区域；采用立式结构，结构紧凑，简单实用；在运行过程中，以蒸发冷却机组运行为主，机械制冷机组运行为辅，与传统机械制冷相比可获得更高的能效比和环境效益。The utility model integrates the dew point indirect evaporative cooling unit and the mechanical refrigeration unit in the same casing, which can make up for the weakness of evaporative cooling, improve the stability of the system, and expand its application area; it adopts vertical structure, compact structure, simple and practical; During the operation, the evaporative cooling unit is the main operation, and the mechanical refrigeration unit is the auxiliary operation. Compared with the traditional mechanical refrigeration, it can obtain higher energy efficiency ratio and environmental benefits.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100985.4UCN206430295U (en) | 2017-01-24 | 2017-01-24 | A kind of modular dew point indirect evaporative cooling and mechanical refrigeration combined air conditioner unit |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720100985.4UCN206430295U (en) | 2017-01-24 | 2017-01-24 | A kind of modular dew point indirect evaporative cooling and mechanical refrigeration combined air conditioner unit |
| Publication Number | Publication Date |
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| CN206430295Utrue CN206430295U (en) | 2017-08-22 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201720100985.4UExpired - Fee RelatedCN206430295U (en) | 2017-01-24 | 2017-01-24 | A kind of modular dew point indirect evaporative cooling and mechanical refrigeration combined air conditioner unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413532A (en)* | 2018-04-04 | 2018-08-17 | 郑州云海信息技术有限公司 | A kind of evaporative cooling system and control method |
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| CN110848923A (en)* | 2019-12-09 | 2020-02-28 | 西安阿姆斯壮智能系统工程有限公司 | A kind of operation control method of mechanical refrigeration compound air conditioner utilizing natural cold source and dry air energy |
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| CN112797521A (en)* | 2020-12-31 | 2021-05-14 | 广东申菱环境系统股份有限公司 | Indirect evaporative cooling device capable of preventing condensation and frosting |
| CN115899918A (en)* | 2022-09-16 | 2023-04-04 | 中国能源建设集团浙江省电力设计院有限公司 | Evaporative cooling ventilation system for power plant fuel machine room |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413532A (en)* | 2018-04-04 | 2018-08-17 | 郑州云海信息技术有限公司 | A kind of evaporative cooling system and control method |
| CN108990391A (en)* | 2018-09-05 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of container data center modularization indirect evaporating-cooling system and method |
| CN108990391B (en)* | 2018-09-05 | 2023-08-18 | 郑州云海信息技术有限公司 | A container data center modular indirect evaporative cooling system and method |
| CN110848923A (en)* | 2019-12-09 | 2020-02-28 | 西安阿姆斯壮智能系统工程有限公司 | A kind of operation control method of mechanical refrigeration compound air conditioner utilizing natural cold source and dry air energy |
| CN111393203A (en)* | 2020-04-21 | 2020-07-10 | 哈尔滨工业大学 | A system for static composting heat recovery and utilization of agricultural and forestry organic solid wastes |
| CN111393203B (en)* | 2020-04-21 | 2024-01-09 | 哈尔滨工业大学 | Static composting heat recycling system for agricultural and forestry organic solid waste |
| CN112797521A (en)* | 2020-12-31 | 2021-05-14 | 广东申菱环境系统股份有限公司 | Indirect evaporative cooling device capable of preventing condensation and frosting |
| CN115899918A (en)* | 2022-09-16 | 2023-04-04 | 中国能源建设集团浙江省电力设计院有限公司 | Evaporative cooling ventilation system for power plant fuel machine room |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | Granted publication date:20170822 Termination date:20190124 | |
| CF01 | Termination of patent right due to non-payment of annual fee |