技术领域technical field
本发明涉及氢燃料备用电源领域，具体而言，涉及一种空冷型氢燃料备用电源监控系统。The invention relates to the field of hydrogen fuel backup power supply, in particular to an air-cooled hydrogen fuel backup power monitoring system.
背景技术Background technique
空冷型氢燃料备用电源系统是采用质子交换膜燃料电池技术，使用氢气和空气中的氧气，通过电化学反应发电的备用电源系统，可广泛应用于通信运营商基站、电力变电站通信机房、银行数据机房等对电力具有要求安全、可靠的备电保障的行业。氢燃料备用电源技术由于其带载能力强、功率密度高、低噪声、无污染排放、长时间供电等显著的特点，能够克服目前传统油机和铅酸蓄电池的缺点，尤其适合应用于人口密度高、环境要求高、备电要求稳定的应用场景，因此氢燃料电源作为新型的备用电源技术，在通信行业保障供电领域、特殊备电应用领域受到越来越多的重视。而这些基站、机房等应用环境一般是无人值守的，因此，要求备电系统具有完善的自我检测控制能力，包含系统运行涉及的所有配套装置、环境参数和环境安全的检测及控制。The air-cooled hydrogen fuel backup power system is a backup power system that uses proton exchange membrane fuel cell technology, uses hydrogen and oxygen in the air, and generates electricity through electrochemical reactions. It can be widely used in communication operator base stations, power substation communication rooms, bank data Industries such as computer rooms that require safe and reliable backup power protection for electric power. Due to its strong load capacity, high power density, low noise, no pollution emissions, and long-term power supply, the hydrogen fuel backup power supply technology can overcome the shortcomings of the current traditional oil engine and lead-acid battery, and is especially suitable for population density applications. Therefore, hydrogen fuel power supply, as a new type of backup power technology, has received more and more attention in the field of guaranteed power supply in the communication industry and in the field of special backup power applications. These base stations, computer rooms and other application environments are generally unattended. Therefore, the backup power system is required to have perfect self-inspection and control capabilities, including the detection and control of all supporting devices, environmental parameters, and environmental safety involved in system operation.
一套完整空冷型氢燃料备用电源系统的主要构成为：氢燃料电池模块、储氢气瓶，其中氢燃料电池模块安装于氢燃料备用电源柜，储氢气瓶安装于储氢气瓶柜。通常氢燃料备用电源控制系统仅实现了对其核心组件---氢燃料电池模块的检测和控制，而不包括对系统运行的配套装置(如储氢气瓶、安装机柜)、环境参数(如环境温湿度)和环境安全(如氢气泄漏)的检测及控制，且一般的氢燃料备用电源控制系统不具备系统备电时长计算。The main components of a complete air-cooled hydrogen fuel backup power system are: hydrogen fuel cell module and hydrogen storage cylinder, in which the hydrogen fuel cell module is installed in the hydrogen fuel backup power supply cabinet, and the hydrogen storage cylinder is installed in the hydrogen storage cylinder cabinet. Usually, the hydrogen fuel backup power supply control system only realizes the detection and control of its core component --- the hydrogen fuel cell module, and does not include the supporting devices (such as hydrogen storage cylinders, installation cabinets) and environmental parameters (such as environmental Temperature and humidity) and environmental safety (such as hydrogen leakage) detection and control, and the general hydrogen fuel backup power control system does not have the calculation of system backup time.
因此，如何提供一种监控系统，全面监测氢燃料备用电源系统的运行状况，便成为本领域技术人员亟待解决的问题。Therefore, how to provide a monitoring system to comprehensively monitor the operation status of the hydrogen fuel backup power supply system has become an urgent problem to be solved by those skilled in the art.
发明内容Contents of the invention
本发明提供一种空冷型氢燃料备用电源监控系统，用以全面监测氢燃料备用电源系统的运行状况，将数据实时上传，并且在系统出现故障时能够及时报警。The invention provides an air-cooled hydrogen fuel backup power monitoring system, which is used to comprehensively monitor the operation status of the hydrogen fuel backup power system, upload data in real time, and give an alarm in time when the system fails.
为达到上述目的，本发明提供了一种空冷型氢燃料备用电源监控系统，包括检测元件、控制器、网络交换机及执行元件，其中：In order to achieve the above purpose, the present invention provides an air-cooled hydrogen fuel backup power supply monitoring system, including a detection element, a controller, a network switch and an actuator, wherein:
所述检测元件包括压力变送器、氢气浓度传感器、氧浓度传感器、温度传感器、湿度传感器、直流电流互感器、烟雾传感器、水位传感器、振动传感器、门磁、氢燃料电池检测模块及DC-DC变换器模块；所述压力变送器用于检测氢气瓶供氢管路的气压；所述氢气浓度传感器用于检测储氢气瓶柜内部的氢气浓度；所述氧浓度传感器用于检测氢燃料备用电源柜的氧气浓度；所述温度传感器检测储氢气瓶柜、氢燃料备用电源柜及控制器箱的温度；所述湿度传感器检测储氢气瓶柜及氢燃料备用电源柜的湿度；所述烟雾传感器用于检测氢气瓶柜及氢燃料备用电源柜的烟雾浓度，当氢气瓶柜或氢燃料备用电源柜的烟雾浓度超过预设值时，相应设置的所述烟雾传感器的干接点闭合；所述水位传感器用于检测氢气瓶柜及氢燃料备用电源柜的水位，当氢气瓶柜或氢燃料备用电源柜的水位没过所述水位传感器的探头时，相应设置的所述水位传感器的干接点闭合；所述振动传感器检测氢气瓶柜或氢燃料备用电源柜的柜体的振动加速度，当氢气瓶柜及氢燃料备用电源柜的柜体的振动加速度超过预设值时，相应设置的所述振动传感器的干接点闭合；所述门磁检测氢气瓶柜及氢燃料备用电源柜的柜门开关状态，当柜门打开时，所述门磁的干接点闭合；所述直流电流互感器用于检测氢燃料备用电源负载电路的电流；所述氢燃料电池检测模块用于检测氢燃料电池的温度、输出电流、输出功率、输出电压、超级电容电压及DC-DC变换效率，所述氢燃料电池检测模块具有串行通信接口或网络接口，用以连接所述网络交换机，同时所述氢燃料电池检测模块还具有干接点输出；The detection elements include a pressure transmitter, a hydrogen concentration sensor, an oxygen concentration sensor, a temperature sensor, a humidity sensor, a DC current transformer, a smoke sensor, a water level sensor, a vibration sensor, a door sensor, a hydrogen fuel cell detection module and a DC-DC Converter module; the pressure transmitter is used to detect the air pressure of the hydrogen supply pipeline of the hydrogen cylinder; the hydrogen concentration sensor is used to detect the hydrogen concentration inside the hydrogen storage cylinder cabinet; the oxygen concentration sensor is used to detect the hydrogen fuel backup power supply the oxygen concentration of the cabinet; the temperature sensor detects the temperature of the hydrogen storage cylinder cabinet, the hydrogen fuel backup power supply cabinet and the controller box; the humidity sensor detects the humidity of the hydrogen storage cylinder cabinet and the hydrogen fuel backup power supply cabinet; the smoke sensor uses When detecting the smoke concentration of the hydrogen bottle cabinet and the hydrogen fuel backup power cabinet, when the smoke concentration of the hydrogen bottle cabinet or the hydrogen fuel backup power cabinet exceeds a preset value, the dry contact of the corresponding smoke sensor is closed; the water level sensor It is used to detect the water level of the hydrogen bottle cabinet and the hydrogen fuel backup power cabinet. When the water level of the hydrogen bottle cabinet or the hydrogen fuel backup power cabinet is below the probe of the water level sensor, the dry contact of the corresponding water level sensor is closed; The vibration sensor detects the vibration acceleration of the cabinet body of the hydrogen cylinder cabinet or the hydrogen fuel backup power supply cabinet. When the vibration acceleration of the cabinet body of the hydrogen gas cylinder cabinet and the hydrogen fuel backup power supply cabinet exceeds a preset value, the The dry contact is closed; the door sensor detects the door switch status of the hydrogen cylinder cabinet and the hydrogen fuel backup power supply cabinet. When the cabinet door is opened, the dry contact of the door sensor is closed; the DC current transformer is used to detect the hydrogen fuel backup The current of the power supply load circuit; the hydrogen fuel cell detection module is used to detect the temperature, output current, output power, output voltage, supercapacitor voltage and DC-DC conversion efficiency of the hydrogen fuel cell, and the hydrogen fuel cell detection module has a string A communication interface or a network interface for connecting to the network switch, and the hydrogen fuel cell detection module also has a dry contact output;
所述控制器包括中央处理模块、显示模块、操作模块、电源汇流模块和通信模块，所述显示模块、所述操作模块和所述通信模块都与所述中央处理模块连接，其中：所述显示模块为显示屏和状态指示灯；所述操作模块包括表面按键、深埋按键及急停按钮，所述表面按键用于接受用户的按键操作并将所述表面按键动作传递至所述中央处理模块，所述深埋按键陷入所述操作模块的外壳以防误操作，所述急停按钮的常开触点与所述中央处理模块连接，当所述急停按钮的常开触点闭合时所述中央处理模块启动紧急停止程序从而紧急中断所述控制器的运行；所述电源汇流模块用于将多路氢燃料备用电源的输出电压汇流成一路电压输出；所述通信模块包括模拟量采集单元、干接点通信单元、RS485通信单元、RS232通信单元、CAN-BUS通信单元及TCP-IP通信单元，所述模拟量采集单元与所述压力变送器、所述氢气浓度传感器、所述氧浓度传感器、所述电流互感器、所述温度传感器、所述湿度传感器及所述DC-DC变换器模块连接，用于将氢气瓶供氢管路的气压，储氢气瓶柜内部的氢气浓度，氢燃料备用电源柜的氧气浓度，氢燃料备用电源负载电路的电流，储氢气瓶柜、氢燃料备用电源柜与控制器箱的温度，储氢气瓶柜及氢燃料备用电源柜的湿度，及氢燃料备用电源的DC-DC变换器效率，传递至所述中央处理单元，所述干接点通信单元与所述烟雾传感器、所述水位传感器、所述振动传感器、所述门磁、所述氢燃料电池检测模块的干接点及所述急停按钮连接，以供所述中央处理模块检测其干接点开闭状态，所述TCP-IP通信单元与所述网络交换机连接，用于将连接在所述网络交换机上的所述氢燃料电池检测模块检测的氢燃料电池的温度、输出电流、输出功率、输出电压及超级电容电压传递至所述中央处理模块，所述RS485通信单元或所述RS232通信单元与所述中央处理模块连接，提供所述中央处理模块与所述上位机通信的工业通信接口；The controller includes a central processing module, a display module, an operation module, a power confluence module and a communication module, and the display module, the operation module and the communication module are all connected to the central processing module, wherein: the display The module is a display screen and a status indicator light; the operation module includes a surface button, a deep-buried button and an emergency stop button, and the surface button is used to accept the user's button operation and transmit the surface button action to the central processing module , the deep-buried button sinks into the shell of the operation module to prevent misuse, the normally open contact of the emergency stop button is connected with the central processing module, when the normally open contact of the emergency stop button is closed, the The central processing module starts an emergency stop program to interrupt the operation of the controller in an emergency; the power confluence module is used to concatenate the output voltages of multiple hydrogen fuel backup power sources into one voltage output; the communication module includes an analog quantity acquisition unit , dry contact communication unit, RS485 communication unit, RS232 communication unit, CAN-BUS communication unit and TCP-IP communication unit, the analog quantity acquisition unit and the pressure transmitter, the hydrogen concentration sensor, the oxygen concentration The sensor, the current transformer, the temperature sensor, the humidity sensor and the DC-DC converter module are connected to the air pressure of the hydrogen supply pipeline of the hydrogen cylinder, the hydrogen concentration inside the hydrogen storage cylinder cabinet, the hydrogen The oxygen concentration of the fuel backup power cabinet, the current of the hydrogen fuel backup power load circuit, the temperature of the hydrogen storage cylinder cabinet, the hydrogen fuel backup power cabinet and the controller box, the humidity of the hydrogen storage cylinder cabinet and the hydrogen fuel backup power cabinet, and the hydrogen fuel The DC-DC converter efficiency of the backup power supply is transmitted to the central processing unit, and the dry contact communication unit communicates with the smoke sensor, the water level sensor, the vibration sensor, the door magnet, and the hydrogen fuel cell The dry contact of the detection module is connected to the emergency stop button for the central processing module to detect the open and closed state of the dry contact, and the TCP-IP communication unit is connected to the network switch for connecting The temperature, output current, output power, output voltage and supercapacitor voltage of the hydrogen fuel cell detected by the hydrogen fuel cell detection module on the switch are transmitted to the central processing module, and the RS485 communication unit or the RS232 communication unit communicates with the The central processing module is connected to provide an industrial communication interface for the central processing module to communicate with the host computer;
所述中央处理模块获取氢气瓶供氢管路的气压并与预设气压相比较，当该气压值低于预设气压值时，所述中央处理模块判断该氢气瓶内的氢气用完；所述中央处理模块获取氢气瓶柜内部的氢气浓度并与预设的氢气浓度相比较，当该氢气浓度值高于预设的氢气浓度值时，所述中央处理模块判断该氢气瓶柜发生氢气泄漏；所述中央处理模块获取氢燃料备用电源柜的氧气浓度并与预设的氧气浓度相比较，当该氧气浓度值低于预设氧气浓度值时，所述中央处理模块判断该氢燃料备用电源柜的空气流量过低；所述中央处理模块获取储氢气瓶柜、氢燃料备用电源柜及控制器箱的温度并与并分别与预设的温度高值及温度低值相比较，当该温度值高于预设的温度高值时，所述中央处理模块判断该储氢气瓶柜、氢燃料备用电源柜或控制器箱的温度过高，当该温度值低于预设的温度低值时，所述中央处理模块判断该储氢气瓶柜、氢燃料备用电源柜或控制器箱的温度过低；所述中央处理模块获取储氢气瓶柜及氢燃料备用电源柜的湿度并分别与预设的湿度值相比较，当该湿度值大于预设的湿度值时，所述中央处理模块判断该储氢气瓶柜或氢燃料备用电源柜的湿度过大；The central processing module acquires the air pressure of the hydrogen supply pipeline of the hydrogen bottle and compares it with the preset air pressure. When the air pressure value is lower than the preset air pressure value, the central processing module judges that the hydrogen in the hydrogen bottle is used up; The central processing module obtains the hydrogen concentration inside the hydrogen bottle cabinet and compares it with the preset hydrogen concentration, and when the hydrogen concentration value is higher than the preset hydrogen concentration value, the central processing module judges that hydrogen leakage occurs in the hydrogen bottle cabinet ; The central processing module obtains the oxygen concentration of the hydrogen fuel backup power supply cabinet and compares it with the preset oxygen concentration. When the oxygen concentration value is lower than the preset oxygen concentration value, the central processing module judges the hydrogen fuel backup power supply The air flow rate of the cabinet is too low; the central processing module obtains the temperature of the hydrogen storage cylinder cabinet, the hydrogen fuel backup power supply cabinet and the controller box and compares them with the preset temperature high value and temperature low value respectively, when the temperature When the temperature value is higher than the preset high temperature value, the central processing module judges that the temperature of the hydrogen storage cylinder cabinet, hydrogen fuel backup power supply cabinet or controller box is too high; when the temperature value is lower than the preset temperature low value , the central processing module judges that the temperature of the hydrogen storage cylinder cabinet, the hydrogen fuel backup power supply cabinet or the controller box is too low; the central processing module obtains the humidity of the hydrogen storage cylinder cabinet and the hydrogen fuel backup power supply cabinet respectively Compared with the humidity value, when the humidity value is greater than the preset humidity value, the central processing module judges that the humidity of the hydrogen storage cylinder cabinet or the hydrogen fuel backup power supply cabinet is too high;
所述执行元件包括风扇、声光报警器、继电器及远程通信模块，所述风扇与所述干接点通信单元连接，用于：当所述中央处理模块判断储氢气瓶柜或氢燃料备用电源柜的氢气浓度或烟雾浓度高于预设值时驱动所述风扇运行以加快储氢气瓶柜或氢燃料备用电源柜氢气或烟雾的扩散，或/和，当所述中央处理模块判断储氢气瓶柜或氢燃料备用电源柜或所述控制器箱的温度高于预设值时驱动所述风扇运行以加快储氢气瓶柜或氢燃料备用电源柜或所述控制器箱散热冷却；所述声光报警器用于当所述中央处理模块检测到所述压力变送器、所述氢气浓度传感器、所述氧浓度传感器、所述烟雾传感器、所述水位传感器、所述震动传感器、所述门磁或所述氢燃料电池检测模块其中至少一个的干接点开闭状态变化或者判断氢燃料电池的温度、输出电流、输出功率或输出电压满足预设条件时驱动所述声光报警器进行声光报警；所述远程通信模块与所述中央处理模块连接，用于在所述中央处理模块的驱动下通过网络向系统上位机传递监测信息，或者在所述中央处理模块的驱动下向预设的手机号码发送报警信息；所述继电器与所述干接点通信单元连接，用于当所述中央处理模块判断氢燃料备用电源故障时启动系统紧急停止运行程序停止氢燃料备用电源系统的运行。The executive element includes a fan, an audible and visual alarm, a relay and a remote communication module, and the fan is connected to the dry contact communication unit for: when the central processing module judges that the hydrogen storage cylinder cabinet or the hydrogen fuel backup power supply cabinet When the hydrogen concentration or smoke concentration is higher than the preset value, the fan is driven to run to speed up the diffusion of hydrogen or smoke in the hydrogen storage cylinder cabinet or the hydrogen fuel backup power supply cabinet, or/and, when the central processing module judges that the hydrogen storage cylinder cabinet Or when the temperature of the hydrogen fuel backup power supply cabinet or the controller box is higher than the preset value, the fan is driven to run to speed up the heat dissipation and cooling of the hydrogen storage cylinder cabinet or the hydrogen fuel backup power supply cabinet or the controller box; the sound and light The alarm is used when the central processing module detects that the pressure transmitter, the hydrogen concentration sensor, the oxygen concentration sensor, the smoke sensor, the water level sensor, the shock sensor, the door magnet or When at least one of the dry contacts of the hydrogen fuel cell detection module changes or judges that the temperature, output current, output power or output voltage of the hydrogen fuel cell meet the preset conditions, the audible and visual alarm is driven to perform an audible and visual alarm; The remote communication module is connected to the central processing module, and is used to transmit monitoring information to the system host computer through the network under the drive of the central processing module, or send monitoring information to the preset mobile phone number under the drive of the central processing module. Send alarm information; the relay is connected to the dry contact communication unit, and is used to start the system emergency stop operation program to stop the operation of the hydrogen fuel backup power system when the central processing module judges that the hydrogen fuel backup power supply is faulty.
其中，预设的氢气浓度值有三个，为25％LEL、50％LEL及75％LEL，分别对应一级告警、二级告警及三级告警，其中LEL为氢气的爆炸下限浓度值。Among them, there are three preset hydrogen concentration values, which are 25%LEL, 50%LEL and 75%LEL, corresponding to the first-level alarm, the second-level alarm and the third-level alarm, wherein LEL is the lower limit concentration value of hydrogen explosion.
其中，氢燃料备用电源处于不工作状态时，所述控制器计算氢气瓶的静态氢气储量，其计算方法为：Wherein, when the hydrogen fuel backup power supply is not working, the controller calculates the static hydrogen storage capacity of the hydrogen cylinder, and the calculation method is:
M＝0.8×X×V×(P-P预设)M＝0.8×X×V×(PPpreset )
其中：M为氢气瓶的氢气储量，X为串联的氢气瓶数，V为该氢气瓶的容积，P为该氢气瓶当前的氢气压力，P预设为预设的氢气压力。Among them: M is the hydrogen storage capacity of the hydrogen cylinder, X is the number of hydrogen cylinders in series, V is the volume of the hydrogen cylinder, P is the current hydrogen pressure of the hydrogen cylinder, and Pis preset as the preset hydrogen pressure.
其中，氢燃料备用电源处于工作状态时，所述控制器计算氢燃料备用电源实时功率备用时长，其计算方法为：Wherein, when the hydrogen fuel backup power supply is in the working state, the controller calculates the real-time power backup time of the hydrogen fuel backup power supply, and the calculation method is:
氢气瓶的氢气的物质的量为n＝Σni＝Σ[(Pi-P下限)Vi×103/RT]；The amount of hydrogen in the hydrogen cylinder is n=Σni =Σ[(Pi -Plower limit )Vi×103 /RT];
所述控制器在氢燃料备用电源处于不工作状态时检测到泄漏的氢气的物质的量为n泄；When the hydrogen fuel backup power supply is not working, the controller detects that the amount ofleaked hydrogen is n;
氢气瓶的氢气的质量为m储＝(n-n泄)m摩；The quality of the hydrogen in the hydrogen cylinder is mstorage =(nndischarge ) mmole ;
每产生一千瓦时电量的耗氢量为m耗＝Aρ氢；The amount of hydrogen consumed per kilowatt-hour of electricity generated ismconsumption =Aρhydrogen ;
氢燃料备用电源的实时输出功率为P时；When the real-time output power of the hydrogen fuel backup power supply is P;
则：P时t备＝m储/m耗；Then: Ptime tpreparation = mstorage /mconsumption ;
氢燃料备用电源实时功率备用时长为t备＝m储/m耗P时；The real-time power backup time of the hydrogen fuel backup power supply is tbackup = mstorage /mconsumption Ptime ;
其中：i为正整数，求和为对i求和；ni是第i个氢气瓶的氢气的物质的量；Pi是第i个氢气瓶的氢气压力；Vi是第i个氢气瓶的容积；P下限是预设的氢气压力值的下限，当氢气压力低于该值时，氢燃料备用电源系统不能正常工作；R为理想气体常数，R＝8.314J/mol/k；T为绝对温度，T(k)＝273.15+t(℃)，设定t＝25℃，则取T＝298.15℃；m摩为氢气的摩尔质量，m摩＝2克/摩尔；A为耗氢常数，表示每产生一千瓦时电量的耗氢的在标准情况下的体积，A＝0.87m3/kwh；ρ氢为标准情况下的氢气密度。Among them: i is a positive integer, and the sum is the sum of i; ni is the amount of hydrogen in the i-th hydrogen bottle; Pi is the hydrogen pressure of the i-th hydrogen bottle; Vi is the i-th hydrogen bottle Thelower limit of P is the lower limit of the preset hydrogen pressure value. When the hydrogen pressure is lower than this value, the hydrogen fuel backup power system cannot work normally; R is the ideal gas constant, R=8.314J/mol/k; T is Absolute temperature, T(k)=273.15+t(°C), set t=25°C, then take T=298.15°C; mmole is the molar mass of hydrogen, mmole =2 g/mole; A is the hydrogen consumption constant , represents the volume of hydrogen consumed per kilowatt-hour of electricity produced under standard conditions, A=0.87m3 /kwh;ρhydrogen is the hydrogen density under standard conditions.
其中，P下限为0.5MPa。Wherein,the lower limit of P is 0.5MPa.
其中，所述控制器在氢燃料备用电源处于不工作状态时检测到泄漏的氢气的物质的量n泄，其计算方法如下：Wherein, when the hydrogen fuel backup power supply is not in working state, the controller detects thequantity n of the leaked hydrogen gas, and its calculation method is as follows:
计算N个氢气瓶在氢燃料备用电源处于不工作状态时的氢气压力降低的平均值Calculate the average value of the hydrogen pressure drop of N hydrogen cylinders when the hydrogen fuel backup power supply is not working
泄漏的氢气的物质的量n泄＝ΔP均ΣVi×103/RT；The amount of leaked hydrogen gasnleak =ΔP ΣVi × 103 /RT;
其中，i为正整数，求和为对i求和；Pi是第i个氢气瓶的氢气压力；Vi是第i个氢气瓶的容积；R为理想气体常数，R＝8.314J/mol/k；T为绝对温度，T(k)＝273.15+t(℃)，设定t＝25℃，则取T＝298.15℃。Among them, i is a positive integer, and the summation is the summation of i; Pi is the hydrogen pressure of the i-th hydrogen cylinder; Vi is the volume of the i-th hydrogen cylinder; R is the ideal gas constant, R=8.314J/mol /k; T is absolute temperature, T(k)=273.15+t(°C), if t=25°C, T=298.15°C.
其中，所述控制器具有密码权限验证，用于对所述控制器的参数设置操作权限进行身份限制。Wherein, the controller has a password authority verification, which is used to limit the identity of the parameter setting operation authority of the controller.
其中，所述声光报警器的声报警和光报警是相互独立的。Wherein, the sound alarm and the light alarm of the sound and light alarm are independent of each other.
与现有技术相比，本发明的有益效果体现在：Compared with the prior art, the beneficial effects of the present invention are reflected in:
本发明公开的空冷型氢燃料备用电源监控系统，能够实时监测系统运行环境的温度、湿度、氧浓度、烟雾、柜门状态(开/关)、柜体振动状态、柜内水位状态。并设置有相应告警机制，方便用户监测系统的应用环境及运行安全性；能够实时监测氢气储量，并在氢气瓶组中的氢气使用殆尽时上报氢气瓶空告警，通知用户更换氢气瓶组；能够实时监测氢气泄漏量，并以氢气爆炸下限浓度值LEL为基数计算，将氢气泄漏安全分为3级告警，增加系统安全性监测，使系统运行安全可靠性提升；本发明可实现空冷型氢燃料备用电源系统的实时功率备用时长计算，使用户对于剩余储氢的可用时长有明确的掌控，并根据实际的应用需求，灵活安排氢气补给工作；为用户提供干接点、RS485、RS232、CAN-bus、TCP/IP接口，用于用户实现现场操作，用于灵活实现远程通讯，且具有短讯告警的功能，能将预设告警信息发送至预设手机号码；采用参数设置和操作的密码权限，既保证了系统的适应性，也保证了操作安全性。The air-cooled hydrogen fuel backup power supply monitoring system disclosed by the present invention can monitor the temperature, humidity, oxygen concentration, smoke, cabinet door status (open/close), cabinet vibration status, and cabinet water level status in real time in the operating environment of the system. And set up a corresponding alarm mechanism, which is convenient for users to monitor the application environment and operation safety of the system; it can monitor the hydrogen storage in real time, and report the hydrogen cylinder empty alarm when the hydrogen in the hydrogen cylinder group is used up, and notify the user to replace the hydrogen cylinder group; It can monitor the amount of hydrogen leakage in real time, and calculate based on the hydrogen explosion lower limit concentration value LEL, divide the safety of hydrogen leakage into three levels of alarms, increase system safety monitoring, and improve the safety and reliability of system operation; the invention can realize air-cooled hydrogen The real-time power backup time calculation of the fuel backup power system enables users to have a clear control over the available time of remaining hydrogen storage, and flexibly arrange hydrogen supply work according to actual application requirements; provide users with dry contact, RS485, RS232, CAN- bus, TCP/IP interface, for users to realize on-site operation, for flexible realization of remote communication, and has the function of SMS alarm, which can send the preset alarm information to the preset mobile phone number; adopt the password authority of parameter setting and operation , which not only ensures the adaptability of the system, but also ensures the safety of operation.
附图说明Description of drawings
图1为本发明一实施例的空冷型氢燃料备用电源监控系统的结构示意图；Fig. 1 is a schematic structural view of an air-cooled hydrogen fuel backup power monitoring system according to an embodiment of the present invention;
图2为本发明一实施例的空冷型氢燃料备用电源监控系统的控制器前后面板示意图；Fig. 2 is a schematic diagram of the front and rear panels of the controller of the air-cooled hydrogen fuel backup power monitoring system according to an embodiment of the present invention;
图3为本发明一实施例的空冷型氢燃料备用电源监控系统的系统实时功率及备用时长计算流程图。Fig. 3 is a flowchart of calculation of real-time system power and standby time of an air-cooled hydrogen fuel backup power monitoring system according to an embodiment of the present invention.
具体实施方式Detailed ways
请参阅图1，图1为本发明一实施例的空冷型氢燃料备用电源监控系统的结构示意图。Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an air-cooled hydrogen fuel backup power monitoring system according to an embodiment of the present invention.
如图1所示，压力变送器、氢气浓度传感器、氧浓度传感器、温度传感器、湿度传感器、直流电流互感器连接控制器的模拟量采集单元，烟雾传感器、水位传感器、振动传感器、门磁、氢燃料电池检测模块连接控制器的干接点通信单元，氢燃料电池检测模块连接网络交换机，控制器也连接网络交换机，从而通过网络交换数据，氢燃料电池检测模块和控制器与网络交换机连接的接口都为TCP-IP接口，或者叫TCP-IP通信单元。在本发明的一个实施例中，串口通信单元包括RS485通信单元、RS232通信单元、CAN-BUS通信单元，其中RS485通信单元和RS232通信单元用于连接上位机。控制器具有显示模块和操作模块，如图2a所示，所述显示模块包括显示屏和状态指示灯；所述操作模块包括表面按键、深埋按键及急停按钮，所述表面按键用于接受用户的按键操作并将所述表面按键动作传递至所述中央处理模块，所述深埋按键陷入所述操作模块的外壳以防误操作，所述急停按钮的常开触点与所述中央处理模块连接，当所述急停按钮的常开触点闭合时所述中央处理模块启动紧急停止程序从而紧急中断所述控制器的运行。As shown in Figure 1, the pressure transmitter, hydrogen concentration sensor, oxygen concentration sensor, temperature sensor, humidity sensor, and DC current transformer are connected to the analog quantity acquisition unit of the controller, smoke sensor, water level sensor, vibration sensor, door sensor, The hydrogen fuel cell detection module is connected to the dry contact communication unit of the controller, the hydrogen fuel cell detection module is connected to the network switch, and the controller is also connected to the network switch, thereby exchanging data through the network, the hydrogen fuel cell detection module and the controller are connected to the interface of the network switch Both are TCP-IP interfaces, or TCP-IP communication units. In one embodiment of the present invention, the serial port communication unit includes an RS485 communication unit, an RS232 communication unit, and a CAN-BUS communication unit, wherein the RS485 communication unit and the RS232 communication unit are used to connect to a host computer. The controller has a display module and an operation module, as shown in Figure 2a, the display module includes a display screen and a status indicator light; the operation module includes a surface button, a deep buried button and an emergency stop button, and the surface button is used to accept The user operates the key and transmits the action of the surface key to the central processing module, the deep buried key is sunk into the shell of the operation module to prevent misuse, the normally open contact of the emergency stop button is in contact with the central processing module The processing module is connected, and when the normally open contact of the emergency stop button is closed, the central processing module starts an emergency stop program to interrupt the operation of the controller in an emergency.
在本发明的一个实施例中，设有：压力变送器3个，分别安装在3个氢气瓶组供氢管路的减压阀前端。用于测量氢气瓶组的氢气压力；In one embodiment of the present invention, there are three pressure transmitters, which are respectively installed at the front ends of the pressure reducing valves of the hydrogen supply pipelines of the three hydrogen cylinder groups. Used to measure the hydrogen pressure of the hydrogen cylinder group;
氢气浓度传感器4个，2个装在储氢气瓶柜，2个装在氢燃料备用电源柜；4 hydrogen concentration sensors, 2 are installed in the hydrogen storage cylinder cabinet, and 2 are installed in the hydrogen fuel backup power supply cabinet;
氧浓度传感器2个，装在氢燃料备用电源柜内；2 oxygen concentration sensors, installed in the hydrogen fuel backup power supply cabinet;
温度传感器4个，2个装在储氢气瓶柜内，2个装在氢燃料备用电源柜内；There are 4 temperature sensors, 2 are installed in the hydrogen storage cylinder cabinet, and 2 are installed in the hydrogen fuel backup power supply cabinet;
湿度传感器4个，2个装在储氢气瓶柜内，2个装在氢燃料备用电源柜内；4 humidity sensors, 2 installed in the hydrogen storage cylinder cabinet, and 2 installed in the hydrogen fuel backup power supply cabinet;
直流电流互感器1个，用于测量系统电源输出电流；1 DC current transformer, used to measure the output current of the system power supply;
烟雾传感器4个，2个装在储氢气瓶柜，2个装在氢燃料备用电源柜内内；There are 4 smoke sensors, 2 are installed in the hydrogen storage cylinder cabinet, and 2 are installed in the hydrogen fuel backup power supply cabinet;
水位传感器4个，2个装在储氢气瓶柜底部，2个装在氢燃料备用电源柜内底部，用于水侵报警；4 water level sensors, 2 installed at the bottom of the hydrogen storage cylinder cabinet, and 2 installed at the bottom of the hydrogen fuel backup power supply cabinet for water intrusion alarm;
振动传感器4个，2个装在储氢气瓶柜的机架上，2个装在氢燃料备用电源柜内的机架上，用于碰撞报警；There are 4 vibration sensors, 2 installed on the rack of the hydrogen storage cylinder cabinet, and 2 installed on the rack inside the hydrogen fuel backup power cabinet for collision alarm;
门磁3个，2个分别装在储氢气瓶柜前后门框上，1个装在氢燃料备用电源柜内前门的门框上。用于传感门的开关状态；There are 3 door magnets, 2 of which are respectively installed on the front and rear door frames of the hydrogen storage cylinder cabinet, and 1 is installed on the front door frame of the hydrogen fuel backup power supply cabinet. Used to sense the switch state of the door;
显示屏为LCD显示屏，工业级800×600彩色液晶屏；状态指示灯为LED灯，采用红黄绿三色LED灯，可调制出红、黄、绿、橙四种颜色；The display screen is an LCD screen, an industrial-grade 800×600 color LCD screen; the status indicator is an LED light, which uses red, yellow, and green three-color LED lights, which can be modulated into four colors: red, yellow, green, and orange;
表面按键有7个，分别定义为左、右、上、下、返回、确认、断铃，为程序按键，与控制器的中央处理模块连接，由中央处理模块的程序扫描检测和处理；深埋按键2个，通过面板上的小孔陷入面板被，需用尖细物体才能操作，分别为复位按键和自检按键，复位按键用于控制器系统复位，不需要中央处理模块的程序扫描，自检按键为程序按键，由中央处理模块的程序扫描检测和处理；急停开关1个，选用蘑菇头急停开关，具有4个常闭辅助触点和1个常开辅助触点，4个常闭辅助触点分别串联到到氢燃料电池模块内温度报警开关回路中，当开关按下时，4个氢燃料电池模块进入安全锁定状态，实现急停功能。1个常开辅助触点用做程序按键，由程序检测急停开关的状态，检测到常开辅助触点闭合式执行系统急停程序。There are 7 buttons on the surface, which are respectively defined as left, right, up, down, return, confirmation, and ring off. They are program buttons, connected with the central processing module of the controller, and are detected and processed by the program scanning of the central processing module; There are 2 buttons, which are inserted into the panel quilt through the small hole on the panel and need to be operated with a sharp object. They are the reset button and the self-test button respectively. The reset button is used to reset the controller system and does not require program scanning of the central processing module. The detection button is a program button, which is detected and processed by the program scanning of the central processing module; one emergency stop switch, a mushroom head emergency stop switch, has 4 normally closed auxiliary contacts and 1 normally open auxiliary contact, and 4 normally open auxiliary contacts The closed auxiliary contacts are respectively connected in series to the temperature alarm switch circuit in the hydrogen fuel cell module. When the switch is pressed, the four hydrogen fuel cell modules enter the safety lock state to realize the emergency stop function. One normally open auxiliary contact is used as a program button, and the program detects the state of the emergency stop switch, and when the normally open auxiliary contact is detected, the emergency stop program of the system is executed in closed mode.
控制器具有中央处理模块，为控制器的数据处理中心，与模拟量采集单元、干接点通信单元、串口通信单元、TCP-IP通信单元和操作模块分别连接，接收从各通信接口传递来的数据，处理后经显示模块显示。控制器同时还连接有声光报警器、风扇、继电器和远程通信模块。The controller has a central processing module, which is the data processing center of the controller, and is connected with the analog quantity acquisition unit, dry contact communication unit, serial port communication unit, TCP-IP communication unit and operation module respectively, and receives the data transmitted from each communication interface , displayed by the display module after processing. The controller is also connected with an audible and visual alarm, a fan, a relay and a remote communication module.
在本发明的一个实施例中，设有：风扇3个，1个用于控制器箱内冷却通风，1个安装在储氢气瓶柜用于氢气瓶柜的排风，1个安装在氢燃料备用电源柜用于备电柜的排风，风扇带转速脉冲传感器，用于回馈风扇的运行状态；In one embodiment of the present invention, there are: 3 fans, one is used for cooling and ventilation in the controller box, one is installed in the hydrogen storage bottle cabinet for the exhaust of the hydrogen bottle cabinet, and one is installed in the hydrogen fuel tank The backup power cabinet is used for the exhaust of the backup cabinet, and the fan has a speed pulse sensor to feed back the running status of the fan;
声光报警器1个，安装于备用电源机柜上方或建筑物外面，以便在不开柜门的情况下提醒附近人员有报警，声、光独立控制，以便单独取消声音；1 sound and light alarm, installed above the backup power cabinet or outside the building, so as to remind nearby personnel that there is an alarm without opening the cabinet door, and the sound and light are independently controlled to cancel the sound alone;
模拟氢燃料电池模块故障继电器4个，各提供一个常闭触点，每个对应1个氢燃料电池模块，该继电器串接到氢燃料电池模块内温度报警开关回路中，该回路断开时，氢燃料电池模块进入安全锁定状态，实现系统急停功能。Simulate 4 hydrogen fuel cell module fault relays, each providing a normally closed contact, each corresponding to a hydrogen fuel cell module, the relay is connected in series to the temperature alarm switch circuit in the hydrogen fuel cell module, when the circuit is disconnected, The hydrogen fuel cell module enters the safety lock state to realize the emergency stop function of the system.
具体实施时，压力变送器检测各氢气瓶供氢管路的气压，中央处理模块获取氢气瓶供氢管路的气压并与预设气压相比较，当该气压值低于预设气压值时，中央处理模块判断该氢气瓶内的氢气用完，发出声光报警器，将数据通过网络上传至上位机，并通过远程通信模块向预设手机号码发送短信报警；同理，所述氢气浓度传感器检测各氢气瓶柜的氢气浓度，中央处理模块获取各氢气瓶柜内部的氢气浓度并与预设的氢气浓度相比较，当该氢气浓度值高于预设的氢气浓度值时，中央处理模块判断该氢气瓶柜发生氢气泄漏，在本发明的一个实施例中，氢气泄漏分为三个等级，分别有三个预设值，为25％LEL、50％LEL和75％LEL，LEL为氢气爆炸的浓度下限，三个预设值对应三级报警：一级告警、二级告警和三级告警，每级告警都会有声光报警、短信报警，并启动风扇加快氢气扩散；氧浓度传感器检测各氢燃料备用电源柜的氧气浓度，中央处理模块获取氢燃料备用电源柜的氧气浓度并与预设的氧气浓度相比较，当该氧气浓度值低于预设氧气浓度值时，所述中央处理模块判断该氢燃料备用电源柜的空气流量过低，发出声光报警器，将数据通过网络上传至上位机，并通过远程通信模块向预设手机号码发送短信报警；温度传感器检测各储氢气瓶柜、各氢燃料备用电源柜及控制器箱的温度，中央处理模块获取储氢气瓶柜、氢燃料备用电源柜及控制器箱的温度并与并分别与预设的温度高值及温度低值相比较，当该温度值高于预设的温度高值时，所述中央处理模块判断该储氢气瓶柜、氢燃料备用电源柜或控制器箱的温度过高，当该温度值低于预设的温度低值时，所述中央处理模块判断该储氢气瓶柜、氢燃料备用电源柜或控制器箱的温度过低，当某个储氢气瓶柜、氢燃料备用电源柜或控制器箱的温度过高时，控制器执行急停程序，使温度过高的氢燃料备用电源系统暂时停止工作，并发短信报警，同时启动风扇降温；湿度传感器检测各储氢气瓶柜及氢燃料备用电源柜的湿度，中央处理模块获取储氢气瓶柜及氢燃料备用电源柜的湿度并分别与预设的湿度值相比较，当该湿度值大于预设的湿度值时，中央处理模块判断该储氢气瓶柜或氢燃料备用电源柜的湿度过大，控制器执行急停程序，使湿度过大的氢燃料备用电源系统暂时停止工作，并发短信报警；烟雾传感器检测各氢气瓶柜及各氢燃料备用电源柜的烟雾浓度，当氢气瓶柜或氢燃料备用电源柜的烟雾浓度超过预设值时，相应设置的所述烟雾传感器的干接点闭合，控制器的中央处理模块检测到烟雾传感器的干接点闭合，判断氢气瓶柜或氢燃料备用电源柜的烟雾过大，发出声光报警并发短信报警；水位传感器检测各氢气瓶柜及各氢燃料备用电源柜的水位，当氢气瓶柜或氢燃料备用电源柜的水位没过所述水位传感器的探头时，相应设置的所述水位传感器的干接点闭合，控制器的中央处理模块检测到水位传感器的干接点闭合，判断氢气瓶柜或氢燃料备用电源柜的水位过高，发出声光报警并发短信报警；振动传感器检测各氢气瓶柜及各氢燃料备用电源柜的柜体的振动加速度，当氢气瓶柜及氢燃料备用电源柜的柜体的振动加速度超过预设值时，相应设置的所述振动传感器的干接点闭合，控制器的中央处理模块检测到振动传感器的干接点闭合，判断氢气瓶柜或氢燃料备用电源柜震动，发出声光报警并发短信报警；门磁检测氢气瓶柜及氢燃料备用电源柜的柜门开关状态，当柜门打开时，门磁的干接点闭合，控制器的中央处理模块检测到门磁的干接点闭合，判断氢气瓶柜或氢燃料备用电源柜的柜门被非法打开，发出声光报警并发短信报警；直流电流互感器检测氢燃料备用电源负载电路的电流，将数据传递至控制器的中央处理模块；氢燃料电池检测模块用于检测氢燃料电池的温度、输出电流、输出功率、输出电压、超级电容电压及DC-DC变换效率，氢燃料电池检测模块具有网络接口，用以连接网络交换机，将数据传递至控制器，同时氢燃料电池检测模块还具有干接点输出。During specific implementation, the pressure transmitter detects the air pressure of the hydrogen supply pipeline of each hydrogen cylinder, and the central processing module obtains the air pressure of the hydrogen supply pipeline of the hydrogen cylinder and compares it with the preset air pressure. When the air pressure value is lower than the preset air pressure value , the central processing module judges that the hydrogen in the hydrogen cylinder is used up, sends out an audible and visual alarm, uploads the data to the host computer through the network, and sends a short message alarm to the preset mobile phone number through the remote communication module; similarly, the hydrogen concentration The sensor detects the hydrogen concentration of each hydrogen bottle cabinet, and the central processing module obtains the hydrogen concentration inside each hydrogen bottle cabinet and compares it with the preset hydrogen concentration. When the hydrogen concentration value is higher than the preset hydrogen concentration value, the central processing module It is judged that hydrogen leakage occurs in the hydrogen bottle cabinet. In one embodiment of the present invention, hydrogen leakage is divided into three levels, respectively having three preset values, which are 25% LEL, 50% LEL and 75% LEL. LEL is hydrogen explosion The lower limit of the concentration, the three preset values correspond to three levels of alarm: level one alarm, level two alarm and level three alarm, each level of alarm will have sound and light alarm, SMS alarm, and start the fan to speed up the diffusion of hydrogen; the oxygen concentration sensor detects each The oxygen concentration of the hydrogen fuel backup power supply cabinet, the central processing module obtains the oxygen concentration of the hydrogen fuel backup power supply cabinet and compares it with the preset oxygen concentration, when the oxygen concentration value is lower than the preset oxygen concentration value, the central processing module Judging that the air flow of the hydrogen fuel backup power supply cabinet is too low, an audible and visual alarm is issued, the data is uploaded to the host computer through the network, and a short message alarm is sent to the preset mobile phone number through the remote communication module; the temperature sensor detects each hydrogen storage cylinder cabinet , each hydrogen fuel backup power supply cabinet and the temperature of the controller box, the central processing module obtains the temperature of the hydrogen storage cylinder cabinet, the hydrogen fuel backup power supply cabinet and the controller box and compares them with the preset high temperature value and temperature low value respectively In comparison, when the temperature value is higher than the preset high temperature value, the central processing module judges that the temperature of the hydrogen storage cylinder cabinet, the hydrogen fuel backup power supply cabinet or the controller box is too high, and when the temperature value is lower than the preset When the temperature is low, the central processing module judges that the temperature of the hydrogen storage cylinder cabinet, hydrogen fuel backup power supply cabinet or controller box is too low. When a hydrogen storage cylinder cabinet, hydrogen fuel backup power supply cabinet or controller box When the temperature is too high, the controller executes the emergency stop procedure to temporarily stop the over-temperature hydrogen fuel backup power supply system, and sends a text message to alarm, and starts the fan to cool down at the same time; the humidity sensor detects the temperature of each hydrogen storage cylinder cabinet and hydrogen fuel backup power supply cabinet. Humidity, the central processing module obtains the humidity of the hydrogen storage cylinder cabinet and the hydrogen fuel backup power supply cabinet and compares them with the preset humidity values respectively. When the humidity value is greater than the preset humidity value, the central processing module judges that the hydrogen storage cylinder cabinet Or the humidity of the hydrogen fuel backup power supply cabinet is too high, the controller executes the emergency stop procedure, so that the hydrogen fuel backup power supply system with excessive humidity temporarily stops working, and sends a text message to alarm; the smoke sensor detects each hydrogen bottle cabinet and each hydrogen fuel backup power supply cabinet When the smoke concentration of the hydrogen bottle cabinet or the hydrogen fuel backup power supply cabinet exceeds the preset value, the dry contact of the correspondingly set smoke sensor is closed, and the central processing module of the controller detects smoke When the dry contact of the sensor is closed, it is judged that the smoke in the hydrogen bottle cabinet or the hydrogen fuel backup power cabinet is too large, an audible and visual alarm is issued and a text message is sent to the alarm; the water level sensor detects the water level of each hydrogen bottle cabinet and each hydrogen fuel backup power cabinet, and when the hydrogen bottle cabinet Or when the water level of the hydrogen fuel backup power supply cabinet does not exceed the probe of the water level sensor, the dry contact of the corresponding water level sensor is closed, and the central processing module of the controller detects that the dry contact of the water level sensor is closed, and judges that the hydrogen cylinder cabinet or If the water level of the hydrogen fuel backup power supply cabinet is too high, an audible and visual alarm will be issued and a text message will be sent to the alarm; the vibration sensor will detect the vibration acceleration of each hydrogen bottle cabinet and each hydrogen fuel backup power supply cabinet. When the vibration acceleration of the cabinet exceeds the preset value, the dry contact of the correspondingly set vibration sensor is closed, and the central processing module of the controller detects that the dry contact of the vibration sensor is closed, and judges the vibration of the hydrogen bottle cabinet or the hydrogen fuel backup power cabinet, Sound and light alarm and SMS alarm; door sensor detects the door switch status of the hydrogen cylinder cabinet and hydrogen fuel backup power supply cabinet. When the cabinet door is opened, the dry contact of the door sensor is closed, and the central processing module of the controller detects When the dry contact is closed, it is judged that the door of the hydrogen cylinder cabinet or the hydrogen fuel backup power cabinet is illegally opened, an audible and visual alarm is issued and a text message is sent to the alarm; the DC current transformer detects the current of the hydrogen fuel backup power supply load circuit and transmits the data to the controller. Central processing module; the hydrogen fuel cell detection module is used to detect the temperature, output current, output power, output voltage, supercapacitor voltage and DC-DC conversion efficiency of the hydrogen fuel cell, and the hydrogen fuel cell detection module has a network interface for connecting to the network The switch transmits the data to the controller, and the hydrogen fuel cell detection module also has a dry contact output.
在本发明的一个实施例中，氢燃料备用电源处于不工作状态时，所述控制器计算氢气瓶的静态氢气储量，其计算方法为：In one embodiment of the present invention, when the hydrogen fuel backup power supply is not working, the controller calculates the static hydrogen storage capacity of the hydrogen cylinder, and the calculation method is:
M＝0.8×X×V×(P-P预设)M＝0.8×X×V×(PPpreset )
其中：M为氢气瓶的氢气储量，X为串联的氢气瓶数，V为该氢气瓶的容积，P为该氢气瓶当前的氢气压力，P预设为预设的氢气压力。Among them: M is the hydrogen storage capacity of the hydrogen cylinder, X is the number of hydrogen cylinders in series, V is the volume of the hydrogen cylinder, P is the current hydrogen pressure of the hydrogen cylinder, and Pis preset as the preset hydrogen pressure.
在本发明的一个实施例中，氢燃料备用电源处于工作状态时，所述控制器计算氢燃料备用电源实时功率备用时长，其计算方法为：In one embodiment of the present invention, when the hydrogen fuel backup power supply is in the working state, the controller calculates the real-time power backup time of the hydrogen fuel backup power supply, and the calculation method is:
氢气瓶的氢气的物质的量为n＝Σni＝Σ[(Pi-P下限)Vi×103/RT]；The amount of hydrogen in the hydrogen cylinder is n=Σni =Σ[(Pi -Plower limit )Vi ×103 /RT];
所述控制器在氢燃料备用电源处于不工作状态时检测到泄漏的氢气的物质的量为n泄；When the hydrogen fuel backup power supply is not working, the controller detects that the amount ofleaked hydrogen is n;
氢气瓶的氢气的质量为m储＝(n-n泄)m摩；The quality of the hydrogen in the hydrogen cylinder is mstorage =(nndischarge ) mmole ;
每产生一千瓦时电量的耗氢量为m耗＝Aρ氢；The amount of hydrogen consumed per kilowatt-hour of electricity generated ismconsumption =Aρhydrogen ;
氢燃料备用电源的实时输出功率为P时；When the real-time output power of the hydrogen fuel backup power supply is P;
则：P时t备＝m储/m耗；Then: Ptime tpreparation = mstorage /mconsumption ;
氢燃料备用电源实时功率备用时长为t备＝m储/m耗P时；The real-time power backup time of the hydrogen fuel backup power supply is tbackup = mstorage /mconsumption Ptime ;
其中：i为正整数，求和为对i求和；ni是第i个氢气瓶的氢气的物质的量；Pi是第i个氢气瓶的氢气压力；Vi是第i个氢气瓶的容积；P下限是预设的氢气压力值的下限，当氢气压力低于该值时，氢燃料备用电源系统不能正常工作；R为理想气体常数，R＝8.314J/mol/k；T为绝对温度，T(k)＝273.15+t(℃)，设定t＝25℃，则取T＝298.15℃；m摩为氢气的摩尔质量，m摩＝2克/摩尔；A为耗氢常数，表示每产生一千瓦时电量的耗氢的在标准情况下的体积，A＝0.87m3/kwh；ρ氢为标准情况下的氢气密度。Among them: i is a positive integer, and the sum is the sum of i; ni is the amount of hydrogen in the i-th hydrogen bottle; Pi is the hydrogen pressure of the i-th hydrogen bottle; Vi is the i-th hydrogen bottle Thelower limit of P is the lower limit of the preset hydrogen pressure value. When the hydrogen pressure is lower than this value, the hydrogen fuel backup power system cannot work normally; R is the ideal gas constant, R=8.314J/mol/k; T is Absolute temperature, T(k)=273.15+t(°C), set t=25°C, then take T=298.15°C; mmole is the molar mass of hydrogen, mmole =2 g/mole; A is the hydrogen consumption constant , represents the volume of hydrogen consumed per kilowatt-hour of electricity produced under standard conditions, A=0.87m3 /kwh;ρhydrogen is the hydrogen density under standard conditions.
其中，P下限为0.5MPa。Wherein,the lower limit of P is 0.5MPa.
其中，所述控制器在氢燃料备用电源处于不工作状态时检测到泄漏的氢气的物质的量n泄，其计算方法如下：Wherein, when the hydrogen fuel backup power supply is not in working state, the controller detects thequantity n of the leaked hydrogen gas, and its calculation method is as follows:
计算N个氢气瓶在氢燃料备用电源处于不工作状态时的氢气压力降低的平均值Calculate the average value of the hydrogen pressure drop of N hydrogen cylinders when the hydrogen fuel backup power supply is not working
泄漏的氢气的物质的量n泄＝ΔP均ΣVi×103/RT；The amount of leaked hydrogen gasnleak =ΔP ΣVi × 103 /RT;
其中，i为正整数，求和为对i求和；Pi是第i个氢气瓶的氢气压力；Vi是第i个氢气瓶的容积；R为理想气体常数，R＝8.314J/mol/k；T为绝对温度，T(k)＝273.15+t(℃)，设定t＝25℃，则取T＝298.15℃。Among them, i is a positive integer, and the summation is the summation of i; Pi is the hydrogen pressure of the i-th hydrogen cylinder; Vi is the volume of the i-th hydrogen cylinder; R is the ideal gas constant, R=8.314J/mol /k; T is absolute temperature, T(k)=273.15+t(°C), if t=25°C, T=298.15°C.
在本发明的一个实施例中，所述控制器具有密码权限验证，用于对所述控制器的参数设置操作权限进行身份限制。In an embodiment of the present invention, the controller has a password authority verification, which is used to restrict the identity of the parameter setting operation authority of the controller.
在本发明的一个实施例中，所述声光报警器的声报警和光报警是相互独立的。In one embodiment of the present invention, the sound alarm and light alarm of the sound and light alarm are independent of each other.
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
| Application Number | Priority Date | Filing Date | Title |
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| CN201410211491.4ACN104238601B (en) | 2014-05-19 | 2014-05-19 | Air-cooled hydrogen fuel stand-by power supply monitoring system |
| Application Number | Priority Date | Filing Date | Title |
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| CN201410211491.4ACN104238601B (en) | 2014-05-19 | 2014-05-19 | Air-cooled hydrogen fuel stand-by power supply monitoring system |
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| CN104238601Atrue CN104238601A (en) | 2014-12-24 |
| CN104238601B CN104238601B (en) | 2017-12-12 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201410211491.4AActiveCN104238601B (en) | 2014-05-19 | 2014-05-19 | Air-cooled hydrogen fuel stand-by power supply monitoring system |
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| Date | Code | Title | Description |
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| EE01 | Entry into force of recordation of patent licensing contract | Application publication date:20141224 Assignee:BEIJING BLUE-G ENERGY SCI & TECH CO.,LTD. Assignor:Li Ran Contract record no.:2015990000731 Denomination of invention:Air cooling type hydrogen fuel stand-by power monitoring system License type:Exclusive License Record date:20150818 | |
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CB02 | Change of applicant information | Address after:100081 room 5, 1501 science and technology building, South Avenue, Zhongguancun, Haidian District, Beijing Applicant after:BEIJING AZURE HYDROGEN ENERGY TECHNOLOGY Co.,Ltd. Address before:100081 No. 5, No. 106-3 South Main Street, Beijing, Haidian District, Zhongguancun Applicant before:Li Ran | |
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