CN109799457B - Fuel cell water management monitoring system and working method thereof - Google Patents
Fuel cell water management monitoring system and working method thereof Download PDFInfo
- Publication number
- CN109799457B CN109799457B CN201811630248.0A CN201811630248A CN109799457B CN 109799457 B CN109799457 B CN 109799457B CN 201811630248 A CN201811630248 A CN 201811630248A CN 109799457 B CN109799457 B CN 109799457B
- Authority
- CN
- China
- Prior art keywords
- water
- fuel cell
- gas
- air
- branch
- 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.)
- Active
Links
Images
Abstract
The invention discloses a water management and monitoring system for a fuel cell, which comprises: hydrogen branch road, air branch road, nitrogen gas branch road, fuel cell module, data acquisition and processing module and waste heat and waste water recovery module, wherein, contain fuel cell and be used for measuring the alternating current impedance tester of the inside water yield of fuel cell in the fuel cell module, waste heat and waste water recovery module includes the gas-liquid separation device who is connected with fuel cell and the waste heat and waste water recovery water route of being connected with gas-liquid separation device, waste water in the waste heat and waste water recovery water route can be used as the gas humidification. The invention also discloses a working method of the monitoring system. The water management and monitoring system of the fuel cell and the working method thereof can monitor the water quantity in the fuel cell to prevent and eliminate the water logging or dehydration fault of the fuel cell, can adjust in real time according to the working environment required by the fuel cell experiment table, and fully utilize the waste water with the residual heat discharged by the reaction area of the fuel cell.
Description
Technical Field
The invention belongs to the field of fuel cell testing, and particularly relates to a fuel cell water management monitoring system and a working method thereof.
Background
With the development and application of human science and technology, energy conservation and environmental protection become the core of the human social sustainable development strategy, and are critical factors influencing energy decision and technology guidance of countries in the world. Meanwhile, the energy system is also huge power for promoting the development of energy science and technology, a huge energy system established in the 20 th century cannot meet the requirements of the future society on an efficient, clean, economic and safe energy system, and the development of energy is facing huge challenges.
A fuel cell is a power generation device that directly converts chemical energy stored in a fuel and an oxidant into electrical energy through an electrochemical reaction. The fuel cell is different from a common power generation device in that chemical energy stored in fuel and oxidant is directly converted into electric energy through electrochemical reaction, the energy conversion rate is high, no pollution is caused to the environment, and the fuel cell has a wide development prospect.
The fuel cell may be an ideal all-solid-state mechanical structure, i.e., without moving parts, such a system having high reliability and long life. And water is generated when the fuel cell takes hydrogen and oxygen as fuel, so that the fuel cell is pollution-free and environment-friendly.
According to the difference of electrolytes, fuel cells can be divided into five categories, namely a phosphate fuel cell, a proton exchange membrane fuel cell, an alkaline fuel cell, a molten carbonate fuel cell and a solid oxide fuel cell, particularly the proton exchange membrane fuel cell can work at low temperature and has higher power density, the power generation efficiency can reach about 60%, the emission is only water, the environment is not polluted, and the fuel cell is widely applied to the fields of traffic, military, communication and the like.
The existing test system for testing the performance of the fuel cell does not utilize products discharged during the reaction of the fuel cell, particularly waste water with waste heat, so that the energy waste is caused, and the core theme of energy conservation and environmental protection at present is not met.
Therefore, further research is needed for testing the performance of the fuel cell, and a more feasible scheme needs to be proposed to timely find and adjust the water balance problem of the fuel cell and recycle the product discharged from the fuel cell.
Disclosure of Invention
The invention aims to provide a fuel cell water management and monitoring system and a working method thereof, which can find and adjust the water balance problem of a fuel cell in time and can recycle waste water with waste heat generated during the operation of the fuel cell.
To this end, the present invention provides a fuel cell water management monitoring system comprising: the system comprises a hydrogen branch, an air branch, a nitrogen branch, a fuel cell module, a data acquisition and processing module and a waste heat and wastewater recovery module; wherein the content of the first and second substances,
the fuel cell module comprises a fuel cell, a temperature sensor, a humidity sensor, a pressure sensor and an alternating current impedance tester for measuring the water quantity in the fuel cell;
the hydrogen branch is connected with the anode of the fuel cell and comprises a hydrogen cylinder, a first gas supply control valve, a first pressure reducing valve, a first filter, a first temperature control device, a first pressure generation device, a first measuring device, a first rotameter and a second measuring device which are sequentially arranged, wherein a first drying gas path and a first humidifying gas path are arranged between the first rotameter and the second measuring device in parallel, a first dry gas line control valve is arranged in the first drying gas path, and a first wet gas line control valve and a first humidifier are arranged in the first humidifying gas path;
the air branch is connected with the cathode of the fuel cell and comprises an air pump, a second air supply control valve, a second pressure reducing valve, a second filter, a second temperature control device, a second pressure generation device, a third measuring device, a second rotameter and a fourth measuring device which are sequentially arranged, wherein a second drying air path and a second humidifying air path are arranged between the second rotameter and the fourth measuring device in parallel, a second dry air line control valve is arranged in the second drying air path, and a second wet air line control valve and a second humidifier are arranged in the second humidifying air path;
the nitrogen branch comprises a nitrogen cylinder, a third gas supply control valve, a third pressure reducing valve, a first filter, a first temperature control device, a first pressure generation device, a first measuring device, a first rotor flow meter, a first dry gas line control valve and a second measuring device which are sequentially arranged, wherein the nitrogen cylinder and a hydrogen cylinder of the hydrogen branch are connected to the first filter in parallel;
the waste heat and waste water recovery module comprises a waste heat and waste water recovery water path and a gas-liquid separation device connected with a fuel cell, wherein the waste heat and waste water recovery water path is connected with a water outlet of the gas-liquid separation device, the waste heat and waste water recovery water path comprises a hot water branch, a cold water branch and a connection water path communicated with the humidifier I and the humidifier II, the hot water branch and the cold water branch are connected in parallel before the connection water path, a temperature control water pump I is arranged in the hot water branch, a condensation water tank and a temperature control water pump II which are connected in series are arranged in the cold water branch, and a temperature control device III and a temperature sensor I are arranged in the connection water path;
the data acquisition and processing module is respectively connected with the fuel cell module, the first air supply control valve, the first pressure reducing valve, the first temperature control device, the first pressure generation device, the first measuring device, the first rotor flow meter, the second measuring device, the first dry air line control valve, the first wet air line control valve, the second air supply control valve, the second pressure reducing valve, the second temperature control device, the second pressure generation device, the third measuring device, the second rotor flow meter, the fourth measuring device, the second dry air line control valve, the second wet air line control valve, the third air supply control valve, the third pressure reducing valve, the first temperature control water pump, the second temperature control water pump, the third temperature control device and the first temperature sensor.
Furthermore, the waste heat and waste water recovery module further comprises a water collector arranged in the waste heat and waste water recovery water channel, the water collector is communicated with the gas-liquid separation device, the first temperature control water pump is connected to the water collector, the condensate tank is communicated with the water collector, and the second temperature control water pump and the condensate tank are connected in parallel with the third temperature control water pump before the third temperature control device.
Further, the monitoring system also comprises a gas recovery device connected with the gas-liquid separation device.
Furthermore, a deionization filter is further arranged in the connecting water path, and waste water in the waste heat and waste water recovery water path is filtered by the deionization filter before being sent to the humidifier I and the humidifier II.
Further, the first measuring device is used for measuring the temperature, the humidity and the pressure of the hydrogen, the second measuring device is used for measuring the flow, the temperature, the humidity and the pressure of the hydrogen, the third measuring device is used for measuring the temperature, the humidity and the pressure of the air, and the fourth measuring device is used for measuring the flow, the temperature, the humidity and the pressure of the air.
Further, the fuel cell is a proton exchange membrane fuel cell.
The invention also provides a working method of the fuel cell water management monitoring system, which comprises the following steps:
hydrogen and air provided by a hydrogen cylinder and an air pump are respectively subjected to pressure adjustment, flow control, temperature control and humidity control through respective air inlet branches, and then respectively enter the anode and the cathode of the fuel cell for reaction, and after the hydrogen and the air enter the fuel cell for full reaction, the discharged mixed gas is subjected to water-gas separation in a gas-liquid separation device;
experimental data are collected and subsequently processed through a data collecting and processing module;
in the working process of the fuel cell module, the alternating current impedance tester is connected with the data acquisition and processing module, the alternating current impedance tester can detect the water level state in the fuel cell and transmit the water level state to the data acquisition and processing module, and the data acquisition and processing module judges whether the fuel cell is in a water flooded state or a dehydrated state by comparing an actual value with two preset water level values;
the data acquisition and processing module controls whether to carry out dewatering and humidification according to the judgment result of the water level state; when flooding occurs, the data acquisition and processing module opens a nitrogen branch, and residual gas and redundant accumulated water in a reaction area of the fuel cell are removed by purging dry nitrogen, so that the water level in the fuel cell is reduced; when the dehydration is generated, the data acquisition and processing module controls the first temperature control water pump and the second temperature control water pump in the waste heat and wastewater recovery water channel to supply controllable temperature water to the first humidifier and the second humidifier, so that the humidity of hydrogen and air in the input fuel cell is increased, and the water content in the fuel cell is increased.
As a preferable means, the water level detection, the water level state judgment and the water level state control of the data acquisition and processing module are carried out synchronously.
The invention has the beneficial effects that:
the water management and monitoring system of the fuel cell and the working method thereof can monitor the water quantity in the fuel cell to prevent and eliminate the water logging or dehydration fault of the fuel cell, can adjust in real time according to the working environment required by the fuel cell experiment table, and fully utilize the waste water with the residual heat discharged by the reaction area of the fuel cell. The invention can find and adjust the water balance problem of the fuel cell in time, thereby improving the efficiency of the fuel cell, prolonging the service life of the fuel cell to a certain extent and ensuring that the test operation of the fuel cell experiment table is safer and more reliable.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the overall scheme of the present invention.
Description of the reference numerals
1. A hydrogen gas cylinder; 2. A first air supply control valve;
3. a first pressure reducing valve; 4. A first filter;
5. a first temperature control device; 6. A first pressure generating device;
7. a first measuring device; 8. A first rotor flow meter;
9. a second measuring device; 10. A first dry gas line control valve;
11. a first wet gas line control valve; 12. A first humidifier;
13. an air pump; 14. A second air supply control valve;
15. a second pressure reducing valve; 16. A second filter;
17. a second temperature control device; 18. A second pressure generating device;
19. a third measuring device; 20. A rotor flow meter II;
21. a measuring device IV; 22. A second dry gas line control valve;
23. a second wet gas line control valve; 24. A second humidifier;
25. a nitrogen gas cylinder; 26. A third air supply control valve;
27. a third pressure reducing valve; 100. A fuel cell module;
110. an alternating current impedance tester; 200. A data acquisition and processing module;
300. a waste heat and wastewater recovery module; 310. A waste heat and wastewater recovery waterway;
311. a water collector; 312. A first temperature control water pump;
313. a third temperature control device; 314. A first temperature sensor;
315. a deionizing filter; 316. A first water flow control valve;
317. a water flow control valve II; 320. A gas-liquid separation device;
330. a condensed water tank; 331. A second temperature control water pump;
400. a gas recovery device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the fuel cell water management monitoring system of the present invention mainly includes a hydrogen branch, an air branch, a nitrogen branch, a fuel cell module 100, a data acquisition and processing module 200, and a waste heat and wastewater recovery module 300.
The fuel cell module 100 includes a fuel cell, a temperature sensor, a humidity sensor, a pressure sensor, and a water level monitoring device for measuring the amount of water inside the fuel cell, wherein the water level monitoring device is specifically an ac impedance tester 110.
The hydrogen branch road is connected at fuel cell's positive pole, the hydrogen branch road is including hydrogen cylinder 1, the air feed control valve 2 that sets gradually, relief pressure valve 3, filter 4, temperature control device 5, pressure generating device 6, measuring device 7, rotameter 8 and measuring device two 9, wherein, parallelly connected dry gas circuit one and the humidification gas circuit one of being provided with between rotameter 8 and the measuring device two 9, be equipped with dry gas circuit control valve 10 in the dry gas circuit one, be equipped with wet gas circuit control valve 11 and humidifier 12 in the humidification gas circuit one, humidifier 12 is used for the hydrogen humidification.
The air branch is connected to the cathode of the fuel cell and comprises an air pump 13, a second air supply control valve 14, a second pressure reducing valve 15, a second filter 16, a second temperature control device 17, a second pressure generation device 18, a third measuring device 19, a second rotameter 20 and a fourth measuring device 21 which are sequentially arranged, wherein a second drying air path and a second humidifying air path are arranged between the second rotameter 20 and the fourth measuring device 21 in parallel, a second dry air line control valve 22 is arranged in the second drying air path, a second wet air line control valve 23 and a second humidifier 24 are arranged in the second humidifying air path, and the second humidifier 24 is used for humidifying air (oxygen).
The nitrogen branch is including the nitrogen cylinder 25, the air feed control valve three 26, the relief pressure valve three 27, the filter 4 that set gradually, temperature control device 5, pressure generating device 6, measuring device 7, rotameter 8, dry gas circuit control valve 10 and measuring device two 9, wherein, nitrogen cylinder 25 with the hydrogen cylinder 1 parallel connection of hydrogen branch is in on the filter 4, promptly the gas in nitrogen cylinder 25 and the hydrogen cylinder 1 filters the gas circuit that the sharing is connected to fuel cell after filter 4. When the nitrogen gas cylinder 25 purges the fuel cell, the first moisture line control valve 11 closes the first humidification gas line, that is, the nitrogen gas performs the scavenging process according to the hydrogen non-humidification (dry) line.
The waste heat and wastewater recovery module 300 comprises a waste heat and wastewater recovery water path 310 and a gas-liquid separation device 320 connected with a fuel cell, wherein the waste heat and wastewater recovery water path 310 is connected with a water outlet of the gas-liquid separation device 320, the waste heat and wastewater recovery water path 310 comprises a hot water branch, a cold water branch and a connection water path communicated with the humidifier I12 and the humidifier II 24, the hot water branch and the cold water branch are connected in parallel before the connection water path, a first temperature control water pump 312 is arranged in the hot water branch, a condensed water tank 330 and a second temperature control water pump 331 which are connected in series are arranged in the cold water branch, a third temperature control device 313 and a first temperature sensor 314 are arranged in the connection water path, and waste water with waste heat generated during the reaction of the fuel cell can be used for gas humidification by the waste heat and wastewater recovery module 300.
Connect the water route including the owner connect the water route, first branch water route and divide the water route to the second, hot water branch road, cold water branch road connect with the owner after parallelly connected with the water route, temperature control device three 313 and temperature sensor 314 establish in the owner connects the water route, first branch water route is used for connecting humidifier 12 and owner and connects the water route, divide the water route to be used for connecting humidifier two 24 and owner and connect the water route.
The data acquisition and processing module 200 is respectively connected with the fuel cell module 100, the first air supply control valve 2, the first pressure reducing valve 3, the first temperature control device 5, the first pressure generation device 6, the first measurement device 7, the first rotameter 8, the second measurement device 9, the first dry gas line control valve 10, the first wet gas line control valve 11, the second air supply control valve 14, the second pressure reducing valve 15, the second temperature control device 17, the second pressure generation device 18, the third measurement device 19, the second rotameter 20, the fourth measurement device 21, the second dry gas line control valve 22, the second wet gas line control valve 23, the third air supply control valve 26, the third pressure reducing valve 27, the first temperature control water pump 312, the second temperature control water pump 331, the third temperature control device 313 and the first temperature sensor 314, so as to control valves and devices in each air path and water path according to the acquired parameter information.
Specifically, as shown in fig. 1, the waste heat and wastewater recovery module 300 further includes a water collector 311 disposed in the waste heat and wastewater recovery water path 310, the water collector 311 is communicated with the gas-liquid separation device 320, the first temperature-controlled water pump 312 is connected to the water collector 311, the condensed water tank 330 is communicated with the water collector 311, and the second temperature-controlled water pump 331, the condensed water tank 330 and the first temperature-controlled water pump 312 are connected in parallel before the third temperature control device 313.
In one embodiment, as shown in fig. 1, the fuel cell water management monitoring system of the present invention further includes a gas recovery device 400, wherein the gas recovery device 400 is connected to the exhaust port of the gas-liquid separation device 320.
As shown in fig. 1, a deionization filter 315 is further disposed in the main connection water path, and the waste water in the waste heat and waste water recovery water path 310 is filtered by the deionization filter 315 before being sent to the first humidifier 12 and the second humidifier 24.
The first measuring device 7 in the monitoring system is used for measuring the temperature, the humidity and the pressure of hydrogen, the second measuring device 9 is used for measuring the flow, the temperature, the humidity and the pressure of hydrogen, the third measuring device 19 is used for measuring the temperature, the humidity and the pressure of air, and the fourth measuring device 21 is used for measuring the flow, the temperature, the humidity and the pressure of air.
The fuel cell of the present invention is a proton exchange membrane fuel cell.
In one embodiment, as shown in fig. 1, the waste water in the waste heat and waste water recycling water path 310 is fed into the first humidifier 12 and the second humidifier 24, and the waste water flow is controlled by the first water flow control valve 316 and the second water flow control valve 317 respectively. Namely, a first water flow control valve 316 is arranged in the first water dividing path, a second water flow control valve 317 is arranged in the second water dividing path, and both the first water flow control valve 316 and the second water flow control valve 317 are connected with the data acquisition and processing module 200, so as to control the humidification amount of the first humidifier 12 and the humidification amount of the second humidifier 24 respectively.
The operating principle of the fuel cell water management monitoring system of the present invention is described as follows:
the hydrogen in the hydrogen cylinder 1 is subjected to impurity and water vapor removal through a first filter 4, and is divided into two paths after pressure adjustment, temperature control and flow control, one path of the hydrogen is sent into a humidifying gas path and reaches the anode of the fuel cell after being humidified through a first humidifier 12, the other path of the hydrogen is directly sent into the anode of the fuel cell after being humidified through a drying gas path without being humidified, and a second measuring device 9 is further arranged in a pipeline before entering the fuel cell and monitors the temperature, humidity, pressure and flow parameters of the hydrogen.
Similarly, the air (oxygen) sent by the air pump 13 is divided into two paths after being subjected to pressure adjustment, temperature control and flow control, wherein one path of the air is sent into a humidifying air path II and reaches the cathode of the fuel cell after being humidified by a humidifier II 24, and the other path of the air is directly sent into the cathode of the fuel cell without being humidified by a drying air path II, wherein a measuring device IV 21 is further arranged in a pipeline before the air enters the fuel cell, and is used for monitoring the temperature, the humidity, the pressure and the flow parameters of the air.
After the hydrogen and the air enter the fuel cell to react sufficiently, the gas-liquid separation device 320 performs water-gas separation on the discharged mixed gas (unreacted hydrogen, air, water vapor, etc.), the waste gas enters the gas recovery device 400 to recover the gas, and the waste water with the waste heat enters the water collector 311.
The fuel cell module 100 includes therein a temperature sensor, a humidity sensor, and a pressure sensor for monitoring the gas temperature, humidity, and pressure in the reaction region of the fuel cell, and an ac impedance tester 110 for measuring the amount of water in the fuel cell, and sends the monitoring parameter information to the data acquisition and processing module 200.
The data acquisition and processing module 200 adaptively adjusts the operating state of the fuel cell according to the parameter information of the hydrogen on the hydrogen branch, the parameter information of the air on the air branch, and the parameters of the gas in the reaction region of the fuel cell.
The waste heat and wastewater recovery water circuit 310 is provided with a third temperature control device 313 and a first temperature sensor 314, and when the first humidifier 12 and the second humidifier 24 humidify hydrogen and air respectively, the gas temperature of the hydrogen and the air is controlled by controlling the temperature of the wastewater.
When the first humidifier 12 and the second humidifier 24 humidify the hydrogen and the air (oxygen) respectively, the first temperature control water pump 312 works to extract hot water with waste heat from the water collector 311, meanwhile, the second temperature control water pump 331 extracts cold water from the condensed water tank 330 which condenses the wastewater, the two mixed water and the cold water reach the temperature required by the experiment, and the mixed water enters the first humidifier 12 and the second humidifier 24 to humidify the gas after being filtered.
The above mixing and blending process of the hot water and the cold water is specifically that the water temperature is fed back through the third temperature control device 313 and the first temperature sensor 314, and the water flow of the hot water and the cold water is controlled by controlling the pumping amount of the first temperature control water pump 312 and the second temperature control water pump 331 through the data acquisition and processing module 200, so that the blending of the water and the warm water required by the experiment is completed.
In addition, during the operation of the fuel cell module 100, the ac impedance tester 110 is connected to the data collecting and processing module 200, the ac impedance tester 110 detects the water level state inside the fuel cell and transmits the detected water level state to the data collecting and processing module 200, and the data collecting and processing module 200 determines whether the fuel cell is in a water-flooded state or a dehydrated state by comparing the actual value with two preset water level values.
The data collecting and processing module 200 controls whether to perform dewatering and humidification according to the judgment result of the water level state.
When flooding occurs, the data acquisition and processing module 200 opens the nitrogen branch, and purges dry nitrogen to remove residual gas and redundant accumulated water in the reaction area of the fuel cell, so as to reduce the water level in the fuel cell; when dehydration is generated, the data acquisition and processing module 200 accelerates the supply of temperature-controllable water to the first humidifier 12 and the second humidifier 24 by controlling the first temperature-control water pump 312 and the second temperature-control water pump 331 in the waste heat and wastewater recovery water path 310, and increases the humidity of hydrogen and air input into the fuel cell, thereby increasing the water content in the fuel cell.
Based on the above introduced fuel cell water management monitoring system, the present invention provides a working method of the fuel cell water management monitoring system, which comprises the following steps:
hydrogen and air supplied by the hydrogen cylinder 1 and the air pump 13 are respectively subjected to pressure adjustment, flow control, temperature control and humidity control through respective air inlet branches, and then respectively enter the anode and the cathode of the fuel cell for reaction, and after the hydrogen and the air enter the fuel cell for full reaction, the discharged mixed gas is subjected to water-gas separation in a gas-liquid separation device 320;
experimental data is collected and subsequently processed through the data collecting and processing module 200;
in the working process of the fuel cell module 100, the alternating current impedance tester 110 is connected with the data acquisition and processing module 200, the alternating current impedance tester 110 can detect the water level state inside the fuel cell and transmit the water level state to the data acquisition and processing module 200, and the data acquisition and processing module 200 judges whether the fuel cell is in a water flooded state or a dehydrated state by comparing an actual value with two preset water level values;
the data collecting and processing module 200 controls whether to perform dewatering and humidification according to the judgment result of the water level state; when flooding occurs, the data acquisition and processing module 200 opens the nitrogen branch, and purges dry nitrogen to remove residual gas and redundant accumulated water in the reaction area of the fuel cell, so as to reduce the water level in the fuel cell; when dehydration is generated, the data acquisition and processing module 200 accelerates the supply of temperature-controllable water to the first humidifier 12 and the second humidifier 24 by controlling the first temperature-control water pump 312 and the second temperature-control water pump 331 in the waste heat and wastewater recovery water path 310, and increases the humidity of hydrogen and air input into the fuel cell, thereby increasing the water content in the fuel cell.
In addition, the water level detection, the water level state judgment and the water level state control of the data acquisition and processing module are synchronously carried out.
In summary, the water management monitoring system for the fuel cell of the present invention realizes the water management of the fuel cell module by the above method, and simultaneously makes full use of the waste water with residual heat generated during the operation of the fuel cell.
The invention can find and adjust the water balance problem of the fuel cell in time, thereby improving the efficiency of the fuel cell, prolonging the service life of the fuel cell to a certain extent and ensuring that the test operation of the fuel cell experiment table is safer and more reliable.
The water management and monitoring system of the fuel cell and the working method thereof can monitor the water quantity in the fuel cell to prevent and eliminate the water logging or dehydration fault of the fuel cell, can adjust in real time according to the working environment required by the fuel cell experiment table, and fully utilize the waste water with the residual heat discharged by the reaction area of the fuel cell.
In the present invention, a part of the wastewater collected by the water collector 311 is diverted into the condensed water tank 330 for condensation treatment, and when the temperature of the fuel cell exceeds the normal temperature range, the data acquisition and processing module 200 controls the temperature control water pump two 331 to accelerate the supply of cold water according to the temperature of the fuel cell, so as to cool the fuel cell.
Meanwhile, the data collecting and processing module 200 determines whether to operate an external cooling system (not shown) to perform auxiliary cooling on the fuel cell according to the temperature of the fuel cell. The external cooling system is a water circulation system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A fuel cell water management monitoring system, comprising: the system comprises a hydrogen branch, an air branch, a nitrogen branch, a fuel cell module, a data acquisition and processing module and a waste heat and wastewater recovery module; wherein the content of the first and second substances,
the fuel cell module comprises a fuel cell, a temperature sensor, a humidity sensor, a pressure sensor and an alternating current impedance tester for measuring the water quantity in the fuel cell;
the hydrogen branch is connected with the anode of the fuel cell and comprises a hydrogen cylinder, a first gas supply control valve, a first pressure reducing valve, a first filter, a first temperature control device, a first pressure generation device, a first measuring device, a first rotameter and a second measuring device which are sequentially arranged, wherein a first drying gas path and a first humidifying gas path are arranged between the first rotameter and the second measuring device in parallel, a first dry gas line control valve is arranged in the first drying gas path, and a first wet gas line control valve and a first humidifier are arranged in the first humidifying gas path;
the air branch is connected with the cathode of the fuel cell and comprises an air pump, a second air supply control valve, a second pressure reducing valve, a second filter, a second temperature control device, a second pressure generation device, a third measuring device, a second rotameter and a fourth measuring device which are sequentially arranged, wherein a second drying air path and a second humidifying air path are arranged between the second rotameter and the fourth measuring device in parallel, a second dry air line control valve is arranged in the second drying air path, and a second wet air line control valve and a second humidifier are arranged in the second humidifying air path;
the nitrogen branch comprises a nitrogen cylinder, a third gas supply control valve, a third pressure reducing valve, a first filter, a first temperature control device, a first pressure generation device, a first measuring device, a first rotor flow meter, a first dry gas line control valve and a second measuring device which are sequentially arranged, wherein the nitrogen cylinder and a hydrogen cylinder of the hydrogen branch are connected to the first filter in parallel;
the waste heat and waste water recovery module comprises a waste heat and waste water recovery water path and a gas-liquid separation device connected with a fuel cell, wherein the waste heat and waste water recovery water path is connected with a water outlet of the gas-liquid separation device, the waste heat and waste water recovery water path comprises a hot water branch, a cold water branch and a connection water path communicated with the humidifier I and the humidifier II, the hot water branch and the cold water branch are connected in parallel before the connection water path, a temperature control water pump I is arranged in the hot water branch, a condensation water tank and a temperature control water pump II which are connected in series are arranged in the cold water branch, and a temperature control device III and a temperature sensor I are arranged in the connection water path;
the data acquisition and processing module is respectively connected with the fuel cell module, the first air supply control valve, the first pressure reducing valve, the first temperature control device, the first pressure generation device, the first measuring device, the first rotor flow meter, the second measuring device, the first dry gas line control valve, the first wet gas line control valve, the second air supply control valve, the second pressure reducing valve, the second temperature control device, the second pressure generation device, the third measuring device, the second rotor flow meter, the fourth measuring device, the second dry gas line control valve, the second wet gas line control valve, the third air supply control valve, the third pressure reducing valve, the first temperature control water pump, the second temperature control water pump, the third temperature control device and the first temperature sensor;
connect the water route including the owner connect the water route, first branch water route and divide the water route to the second, hot water branch road, cold water branch road connect with the owner after parallelly connected with the water route, temperature control device three 313 and temperature sensor 314 establish in the owner connects the water route, first branch water route is used for connecting humidifier 12 and owner and connects the water route, divide the water route to be used for connecting humidifier two 24 and owner and connect the water route.
2. The system as claimed in claim 1, wherein the waste heat and wastewater recovery module further comprises a water collector disposed in the waste heat and wastewater recovery water path, the water collector is connected to the gas-liquid separation device, the first temperature-controlled water pump is connected to the water collector, the condensate tank is connected to the water collector, and the second temperature-controlled water pump and the condensate tank are connected in parallel to the third temperature-controlled water pump before the temperature control device.
3. The fuel cell water management monitoring system according to claim 1 or 2, further comprising a gas recovery device connected to the gas-liquid separation device.
4. The system as claimed in claim 1, wherein a deionization filter is further disposed in the connection water path, and the waste water in the waste heat and waste water recycling water path is filtered by the deionization filter before being sent to the first humidifier and the second humidifier.
5. The fuel cell water management monitoring system according to claim 1, wherein the first measuring device is configured to measure the temperature, humidity, and pressure of hydrogen, the second measuring device is configured to measure the flow rate, temperature, humidity, and pressure of hydrogen, the third measuring device is configured to measure the temperature, humidity, and pressure of air, and the fourth measuring device is configured to measure the flow rate, temperature, humidity, and pressure of air.
6. The fuel cell water management monitoring system of claim 1, wherein the fuel cell is a proton exchange membrane fuel cell.
7. A method of operating a fuel cell water management monitoring system according to any one of claims 1 to 6, comprising the steps of:
hydrogen and air provided by a hydrogen cylinder and an air pump are respectively subjected to pressure adjustment, flow control, temperature control and humidity control through respective air inlet branches, and then respectively enter the anode and the cathode of the fuel cell for reaction, and after the hydrogen and the air enter the fuel cell for full reaction, the discharged mixed gas is subjected to water-gas separation in a gas-liquid separation device;
experimental data are collected and subsequently processed through a data collecting and processing module;
in the working process of the fuel cell module, the alternating current impedance tester is connected with the data acquisition and processing module, the alternating current impedance tester can detect the water level state in the fuel cell and transmit the water level state to the data acquisition and processing module, and the data acquisition and processing module judges whether the fuel cell is in a water flooded state or a dehydrated state by comparing an actual value with two preset water level values;
the data acquisition and processing module controls whether to carry out dewatering and humidification according to the judgment result of the water level state; when flooding occurs, the data acquisition and processing module opens a nitrogen branch, and residual gas and redundant accumulated water in a reaction area of the fuel cell are removed by purging dry nitrogen, so that the water level in the fuel cell is reduced; when the dehydration is generated, the data acquisition and processing module controls the first temperature control water pump and the second temperature control water pump in the waste heat and wastewater recovery water channel to supply controllable temperature water to the first humidifier and the second humidifier, so that the humidity of hydrogen and air in the input fuel cell is increased, and the water content in the fuel cell is increased.
8. The method of claim 7, wherein the water level detection, the water level state determination, and the water level state control of the data collection and processing module are performed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630248.0A CN109799457B (en) | 2018-12-29 | 2018-12-29 | Fuel cell water management monitoring system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811630248.0A CN109799457B (en) | 2018-12-29 | 2018-12-29 | Fuel cell water management monitoring system and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109799457A CN109799457A (en) | 2019-05-24 |
| CN109799457B true CN109799457B (en) | 2021-12-14 |
Family
ID=66557996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811630248.0A Active CN109799457B (en) | 2018-12-29 | 2018-12-29 | Fuel cell water management monitoring system and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109799457B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439802A (en) * | 2019-08-08 | 2019-11-12 | 中国汽车技术研究中心有限公司 | A kind of fuel cell system hydrogen gas circulating pump test device |
| CN113903954A (en) * | 2021-11-17 | 2022-01-07 | 中汽研新能源汽车检验中心(天津)有限公司 | Hydrogen fuel cell water fault on-line diagnosis testing arrangement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242993A (en) * | 2002-02-19 | 2003-08-29 | Mitsubishi Electric Corp | Air conditioner utilizing fuel cell heat |
| CN105633435A (en) * | 2015-12-31 | 2016-06-01 | 北京建筑大学 | Vehicular fuel battery system and working method thereof |
| CN106450383A (en) * | 2016-11-29 | 2017-02-22 | 北京建筑大学 | Water management system for proton exchange membrane fuel cell and working method thereof |
| CN106469819A (en) * | 2016-11-29 | 2017-03-01 | 北京建筑大学 | A kind of fuel cell parameters control system and its method of work |
| CN206585014U (en) * | 2017-02-28 | 2017-10-24 | 武汉东湖氢能源产业投资有限公司 | Fuel cell apparatus for recovering |
| CN107565148A (en) * | 2017-08-25 | 2018-01-09 | 北京建筑大学 | A kind of fuel cell water logging detection and failture evacuation system and its method of work |
| CN108317767A (en) * | 2018-04-03 | 2018-07-24 | 浙江工业大学 | One proton exchanging film fuel battery afterheat utilizing system and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040115491A1 (en) * | 2002-09-23 | 2004-06-17 | Hydrogenics Corporation | System and method for process gas stream delivery and regulation using open loop and closed loop control |
| US20050076639A1 (en) * | 2003-10-14 | 2005-04-14 | Shirk Mark A. | Cryogenic cogeneration system |
| CN101914572B (en) * | 2010-07-20 | 2012-07-25 | 中国科学院广州能源研究所 | Energy utilization method of carbon dioxide zero-emission type organic waste |
| CN103050723B (en) * | 2012-12-28 | 2014-12-24 | 清华大学 | Cathode exhaust recirculating system for proton exchange membrane fuel cell |
| CN206074692U (en) * | 2016-09-19 | 2017-04-05 | 清华大学 | The ac impedance measurement system of electrochemical appliance |
| CN208093657U (en) * | 2018-03-11 | 2018-11-13 | 江苏氢璞创能科技有限公司 | A kind of heat exchanger and humidification system for fuel battery humidifying |
-
2018
- 2018-12-29 CN CN201811630248.0A patent/CN109799457B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242993A (en) * | 2002-02-19 | 2003-08-29 | Mitsubishi Electric Corp | Air conditioner utilizing fuel cell heat |
| CN105633435A (en) * | 2015-12-31 | 2016-06-01 | 北京建筑大学 | Vehicular fuel battery system and working method thereof |
| CN106450383A (en) * | 2016-11-29 | 2017-02-22 | 北京建筑大学 | Water management system for proton exchange membrane fuel cell and working method thereof |
| CN106469819A (en) * | 2016-11-29 | 2017-03-01 | 北京建筑大学 | A kind of fuel cell parameters control system and its method of work |
| CN206585014U (en) * | 2017-02-28 | 2017-10-24 | 武汉东湖氢能源产业投资有限公司 | Fuel cell apparatus for recovering |
| CN107565148A (en) * | 2017-08-25 | 2018-01-09 | 北京建筑大学 | A kind of fuel cell water logging detection and failture evacuation system and its method of work |
| CN108317767A (en) * | 2018-04-03 | 2018-07-24 | 浙江工业大学 | One proton exchanging film fuel battery afterheat utilizing system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109799457A (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108474565B (en) | Domestic energy center and method for operating a domestic energy center | |
| CN106469819B (en) | A kind of fuel cell parameters control system and its working method | |
| CN101577342B (en) | Fuel cell with humidification zone of single cell | |
| CN201590452U (en) | Water-cooled proton exchange film fuel cell stack control system | |
| CN106410243B (en) | A kind of fuel cell experimental bench looped system and its working method | |
| CN104134810B (en) | Fuel cell power system having fuel flow and controlled pressure | |
| CN107565148A (en) | A kind of fuel cell water logging detection and failture evacuation system and its method of work | |
| CN110931831A (en) | Fuel cell dynamic performance test system | |
| CN109799457B (en) | Fuel cell water management monitoring system and working method thereof | |
| CN114156502A (en) | Fuel cell cogeneration system | |
| CN108539229A (en) | A kind of fuel cell pile hydrogen circulation device and method | |
| CN102308421A (en) | Fuel cell system | |
| CN102800876A (en) | Self-humidifying fuel cell | |
| CN106340660B (en) | Energy supply method and system | |
| CN112599818A (en) | Water management system of proton fuel cell | |
| CN103250292A (en) | Device for generating electricity using a fuel cell | |
| CN109728331A (en) | One proton exchanging film fuel battery dynamic performance testing system and its working method | |
| CN114068997A (en) | High-efficiency energy-saving fuel cell stack test system | |
| CN109768302B (en) | Fuel cell testing system with waste heat recovery device and working method | |
| CN110190307B (en) | Fuel cell system and humidity control method thereof | |
| US20230010307A1 (en) | Large proton exchange membrane fuel cell power station process system | |
| KR101314238B1 (en) | Hydrogen production system using high temperature steam electrolysis connected with nuclear power plant, electrolyzer of water and fuel cell power generation system | |
| CN208489292U (en) | A kind of fuel cell pile hydrogen circulation device | |
| CN112103540B (en) | Solid hydrogen high-temperature reaction hydrogen generating device power generation system | |
| CN109728326B (en) | Fuel gas system of fuel cell and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |