阅读说明：本技术 一种用于质子交换膜燃料电池的监测系统 (Monitoring system for proton exchange membrane fuel cell ) 是由 刘加国 王庆 齐向 高山 宋衍国 贺光学 叶俊 于 2019-10-14 设计创作，主要内容包括：本发明提供一种用于质子交换膜燃料电池的监测系统,包括：微传感器、信号处理模块、气体检测模块、数据分析模块和中央控制单元；所述微传感器、气体检测模块均与质子交换膜燃料电池连接；所述微传感器与所述信号处理模块连接；所述气体检测模块与数据分析模块连接；所述信号处理模块、数据分析模块均与中央控制单元连接。本发明本系统通过对质子交换膜的性能衰减进行检测,从而判断燃料电池的老化情况；除环境因素外还考虑到杂质气体的毒化作用,提高了质子交换膜燃料电池的使用安全性。(The invention provides a monitoring system for a proton exchange membrane fuel cell, comprising: the system comprises a micro sensor, a signal processing module, a gas detection module, a data analysis module and a central control unit; the micro sensor and the gas detection module are both connected with the proton exchange membrane fuel cell; the micro sensor is connected with the signal processing module; the gas detection module is connected with the data analysis module; and the signal processing module and the data analysis module are both connected with the central control unit. The system of the invention detects the performance attenuation of the proton exchange membrane, thereby judging the aging condition of the fuel cell; besides environmental factors, the poisoning effect of impurity gases is also considered, and the use safety of the proton exchange membrane fuel cell is improved.)

1. A monitoring system for a pem fuel cell comprising: the system comprises a micro sensor, a signal processing module, a gas detection module, a data analysis module and a central control unit; the micro sensor and the gas detection module are both connected with the proton exchange membrane fuel cell; the micro sensor is connected with the signal processing module; the gas detection module is connected with the data analysis module; and the signal processing module and the data analysis module are both connected with the central control unit.

2. The monitoring system for a pem fuel cell of claim 1 wherein said gas detection module comprises a sulfur dioxide sensor, a hydrocarbon sensor, and a hydrogen chloride sensor.

3. The monitoring system of claim 1, wherein the microsensors comprise an air temperature sensor, an air humidity sensor, and an air pressure sensor.

4. The monitoring system for the PEM fuel cell according to claim 1, wherein said signal processing module comprises a differential amplifying circuit and an A/D converting circuit, said differential amplifying circuit being connected to said A/D converting circuit.

5. The monitoring system for pem fuel cell of claim 1 further comprising a communication module and a display module, wherein said display module is connected to said central control unit via said communication module, and said communication module is connected to said central control unit.

6. The monitoring system for pem fuel cell of claim 1 further comprising an alarm module, said alarm module being connected to said central control unit.

Technical Field

The invention belongs to the technical field of fuel cells, and particularly relates to a monitoring system for a proton exchange membrane fuel cell.

Background

With the development of fuel cell technology, fuel cells have wide application prospects in the field of stationary power generation. Proton Exchange Membrane Fuel Cells (PEMFCs) use hydrogen and oxygen as anode fuel and cathode oxide, use a solid electrolyte membrane as a membrane of the cathode and anode, and transport protons. The service life is a main obstacle for restricting the commercial application of the PEMFC, so that the development of an online monitoring system for the performance degradation of the PEMFC is of great significance.

Through scientific research, the main reasons for the lifetime decay of PEMFCs are: gas permeation, influence of environment temperature and humidity, and certain poisoning effect of impurity gas on the proton exchange membrane.

Patent CN201910314079 discloses an on-line detecting system for the reaction state of a proton exchange membrane fuel cell stack and its application, which is used for detecting the problem that the service life of the whole cell is affected by the uneven distribution of reactant gas and cooling water in a main pipe during the reaction of the stack.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the present invention provides a monitoring system for a pem fuel cell to solve the above-mentioned technical problems.

The invention provides a monitoring system for a proton exchange membrane fuel cell, comprising: the system comprises a micro sensor, a signal processing module, a gas detection module, a data analysis module and a central control unit; the micro sensor and the gas detection module are both connected with the proton exchange membrane fuel cell; the micro sensor is connected with the signal processing module; the gas detection module is connected with the data analysis module; the signal processing module and the data analysis module are both connected with the central control unit; the signal processing module comprises a differential amplification circuit and an A/D conversion circuit, and the differential amplification circuit is connected with the A/D conversion circuit.

Further, the gas detection module comprises a sulfur dioxide sensor, a hydrocarbon sensor and a hydrogen chloride sensor, and the gas sensors can detect the components and the concentration of gas in the proton exchange membrane fuel cell.

Further, the micro-sensors include an air temperature sensor, an air humidity sensor and an air pressure sensor, and the micro-sensors can measure the temperature, humidity and air pressure of air in the proton exchange membrane fuel cell.

Preferably, the system further comprises a communication module and a display module, wherein the display module is in wireless communication connection with the central control unit through the communication module, and the communication module is connected with the central control unit.

The purpose of the preferred scheme of this step is in order to show the result of monitoring, make things convenient for relevant staff to maintain.

Preferably, the system further comprises an alarm module, and the alarm module is connected with the central control unit.

The purpose of the optimal scheme at this step is to send out an alarm to remind relevant workers to check when the monitored fuel cell is attenuated to a certain degree in order to prevent dangerous accidents caused by the aging of the fuel cell.

The beneficial effect of the invention is that,

the system can monitor the performance attenuation condition of the proton exchange membrane fuel cell by detecting the temperature, the humidity and the air pressure of the air in the fuel cell and detecting the component concentration of the impurity gas through gas detection, namely, the aging condition of the proton exchange membrane fuel cell is detected by considering the poisoning influence of a proton exchange membrane, and the use safety of the proton exchange membrane fuel cell is improved.

In addition, the invention has reliable design principle, simple structure and very wide application prospect.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic block diagram of a system according to an embodiment of the present application;

FIG. 2 is a schematic block diagram of a system according to an embodiment of the present application;

FIG. 3 is a schematic block diagram of a system according to an embodiment of the present application;

wherein, 1, a micro sensor; 2. a signal processing module; 3. a gas detection module; 4. a data analysis module; 5. a central control unit; 6. a differential amplifier circuit; 7. an A/D conversion circuit; 8. a sulfur dioxide sensor; 9. a hydrocarbon sensor; 10. a hydrogen chloride sensor; 11. an air temperature sensor; 12. an air humidity sensor; 13. an air pressure sensor; 14. a communication module; 15. a display module; 16. and an alarm module.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.