CN109597452B - High-power fuel cell test platform gas temperature and humidity regulation system - Google Patents
High-power fuel cell test platform gas temperature and humidity regulation system Download PDFInfo
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- CN109597452B CN109597452B CN201811455255.1A CN201811455255A CN109597452B CN 109597452 B CN109597452 B CN 109597452B CN 201811455255 A CN201811455255 A CN 201811455255A CN 109597452 B CN109597452 B CN 109597452B
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- 239000000446 fuel Substances 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 154
- 239000007789 gas Substances 0.000 claims abstract description 39
- 230000001502 supplementing effect Effects 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000012495 reaction gas Substances 0.000 claims abstract description 16
- 230000005587 bubbling Effects 0.000 claims description 18
- 239000000945 filler Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 238000009827 uniform distribution Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 abstract description 2
- 230000036632 reaction speed Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a high-power fuel cell test platform gas temperature and humidity regulation system, which comprises a humidifier, wherein the humidifier is connected with a reaction gas inlet pipeline, a humidifier gas outlet pipeline, a humidifying water circulation pipeline and a water supplementing pipeline; the reaction gas inlet pipeline comprises a first inlet switch valve and a one-way valve, and the humidifying gas outlet pipeline comprises a temperature sensor, a gas-liquid separator, a heat exchanger, a second inlet switch valve and a humidity sensor; the humidifying water circulation pipeline comprises a circulating water pump, a radiator, a pipeline heater, a water inlet temperature sensor and a water outlet temperature sensor; the water supplementing pipeline comprises a water supplementing switch valve, a water inlet of the water supplementing switch valve is connected with a water source, and a water outlet of the water supplementing switch valve is connected with the humidifier. The invention has high control precision, high reaction speed, few system components, compact structure, low cost, high heat utilization rate and low energy consumption, and adopts the pile circulating cooling water to raise the temperature of the moisture in the pile and regulate and control the relative humidity.
Description
Technical Field
The invention relates to a proton exchange membrane fuel cell test platform, in particular to a high-power fuel cell test platform gas temperature and humidity regulation technology.
Background
The proton exchange membrane fuel cell takes hydrogen as fuel and oxygen in air as oxidant, and the reaction products are electricity and water, so that the proton exchange membrane fuel cell has the advantages of high energy conversion efficiency, no pollution, zero emission and the like, and is the development direction of a future vehicle-mounted power supply. With the development of fuel cell technology, the power demand of fuel cell vehicles on fuel cells is continuously increasing, and the power of electric stacks is gradually increased from tens to hundreds of kilowatts.
The development verification process and the reliability test of the high-power fuel cell stack are required to be performed on a fuel cell test platform, the performance and the reliability of the fuel cell stack under different working conditions are verified by controlling parameters such as the flow rate, the pressure, the temperature, the humidity and the like of reaction gas, a proton exchange membrane needs to be combined with water in the operation process of the fuel cell to keep the conductivity of protons, the internal resistance is increased and the performance of the fuel cell is reduced due to too little combined water content in the proton exchange membrane, and under the normal condition, the reaction gas needs to be humidified in the test of the fuel cell, so the fuel cell test platform needs to have the characteristics of quick temperature and humidity response, wider humidification range and the like so as to meet the requirements of the high-power fuel cell stack test, and the system for quickly adjusting the gas temperature and the humidity of the fuel cell test platform is disclosed in China patent CN 101165952. The temperature and humidity system has the advantages of more components, complex pipelines, and high energy consumption due to the use of a plurality of heaters and water pumps; the invention adopts a dry gas and wet gas mixed humidification mode, wet gas is obtained by spray humidification, a control system is more complex, and Chinese patent CN107908209 discloses a fuel cell test platform and a temperature and humidity control system thereof, wherein the fuel cell test platform comprises an atomization humidifier, a water tank, a circulating pump, a water heater, four heat exchangers, a steam-water separator, a temperature, pressure and humidity detection device; the humidifying water is homologous with the high-temperature water of the heat exchanger, so that the energy consumption is high; and the flow rate of the humidified water and the high-temperature water of the heat exchanger, the heating temperature of the humidified water and the outlet temperatures of the third heat exchanger and the fourth heat exchanger are required to be controlled simultaneously, so that the control difficulty is high.
Disclosure of Invention
The invention aims to provide a high-power test platform gas temperature and humidity regulation system.
The aim of the invention can be achieved by the following technical scheme:
the high-power fuel cell test platform gas temperature and humidity regulation system comprises a humidifier, wherein the humidifier is connected with a reaction gas inlet pipeline, a humidifier outlet pipeline, a humidifying water circulation pipeline and a water supplementing pipeline;
The reaction gas inlet pipeline comprises a first inlet switch valve and a one-way valve, one end of the first inlet switch valve is connected with a gas source, the other end of the first inlet switch valve is connected with one end of the one-way valve through a pipeline, and the other end of the one-way valve is connected with a gas inlet of the humidifier;
The humidifying gas outlet pipeline comprises a temperature sensor, a gas-liquid separator, a heat exchanger, a second gas inlet switch valve and a humidity sensor, one end of the gas-liquid separator is connected with a humidifier gas outlet through a pipeline, the temperature sensor is arranged on a pipeline between the gas-liquid separator and the humidifier gas outlet, the other end of the gas-liquid separator is connected with the heat exchanger through a pipeline, the heat exchanger is connected with the second gas inlet switch valve through a pipeline, the second gas inlet switch valve is connected with a reaction gas inlet of the fuel cell stack through a pipeline, the humidity sensor is arranged on a pipeline between the second gas inlet switch valve and the fuel cell stack, the heat exchanger is connected with a cooling circulating water pipeline of the fuel cell stack, and a water inlet of the heat exchanger is connected with a cooling circulating water outlet of the fuel cell stack;
The humidifying water circulation pipeline comprises a circulating water pump, a radiator, a pipeline type heater, a water inlet temperature sensor and a water outlet temperature sensor, wherein a water inlet of the circulating water pump is connected with a water outlet of the humidifier, the water outlet of the circulating water pump is connected with the radiator through a pipeline, the water inlet temperature sensor is arranged on a pipeline between the radiator and the water inlet of the pipeline type heater, the water outlet of the pipeline type heater is connected with a water inlet of the humidifier through a pipeline, and the water outlet temperature sensor is arranged on a pipeline between the water outlet of the pipeline type heater and the water inlet of the humidifier;
The water supplementing pipeline comprises a water supplementing switch valve, a water inlet of the water supplementing switch valve is connected with a water source, and a water outlet of the water supplementing switch valve is connected with the humidifier.
As a further scheme of the invention, the radiator is a plate heat exchanger or an air-cooled radiator.
As a further scheme of the invention, the water supplementing switch valve of the water supplementing pipeline is a floating ball switch valve or a photoelectric liquid level switch.
As a further scheme of the invention, the pipeline heater, the water inlet temperature sensor, the water outlet temperature sensor, the humidity sensor and the radiator are all in communication connection with a controller, and the controller is used for controlling the heating temperature of the humidifying circulating water and the temperature and the humidity of the reaction gas entering the fuel cell stack.
As a further scheme of the invention, the humidifier comprises a bubbling humidification area, a spraying humidification area positioned at the upper part of the bubbling humidification area and a water storage area positioned at the lower part of the bubbling humidification area, wherein the lower part of the bubbling humidification area is provided with an air inlet, the top of the spraying humidification area is provided with an air outlet and a water inlet, the bottom of the water storage area is provided with a water outlet, and the water inlet is connected with the water outlet through a humidifying water circulation pipeline;
The spraying humidification area comprises a spraying plate, a first packing layer and a first gas uniform distribution plate from top to bottom, and the first packing layer is filled by porous fiber non-woven fabrics or stainless steel wire meshes;
The bubbling humidification area comprises a second packing layer and a second air flow uniform distribution plate from top to bottom, and the second packing layer is filled by ceramic pall rings or stainless steel meshes;
The water storage area is communicated with the bubbling humidification area through a conduit, the upper end of the conduit is higher than the second filler layer, and the lower end of the conduit is immersed below the liquid level of the water storage area.
The invention has the beneficial effects that:
1. The system has fewer parts and compact structure, and is beneficial to reducing the cost;
2. The invention has high control precision, is simple and reliable, and can quickly respond to humidity demands by only regulating and controlling the temperature of the humidifying water according to the signals fed back by the humidity sensor;
3. The invention adopts the pile circulating cooling water to raise the temperature of the moisture in the pile and regulate and control the relative humidity, and has high heat utilization rate and low energy consumption.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present invention;
Fig. 2 is a schematic structural view of a humidifier.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The high-power fuel cell test platform gas temperature and humidity regulation system comprises a humidifier 3, wherein the humidifier 3 is connected with a reaction gas inlet pipeline 1, a humidifier outlet pipeline 2, a humidifying water circulation pipeline 4 and a water supplementing pipeline 5;
The reaction gas inlet pipeline 1 comprises a first inlet switch valve 11 and a one-way valve 12, one end of the first inlet switch valve 11 is connected with a gas source, the other end of the first inlet switch valve 11 is connected with one end of the one-way valve 12 through a pipeline, the other end of the one-way valve 12 is connected with the gas inlet of the humidifier 3, and the one-way valve 12 is used for preventing water from returning in the humidifier 3 and protecting components in front of the one-way valve 13;
The humidifying gas outlet pipeline 2 comprises a temperature sensor 21, a gas-liquid separator 22, a heat exchanger 23, a second gas inlet switch valve 24 and a humidity sensor 25, one end of the gas-liquid separator 22 is connected with the gas outlet of the humidifier 3 through a pipeline, the temperature sensor 21 is arranged on a pipeline between the gas-liquid separator 22 and the gas outlet of the humidifier 3, the other end of the gas-liquid separator 22 is connected with the heat exchanger 23 through a pipeline, the heat exchanger 23 is connected with the second gas inlet switch valve 24 through a pipeline, the second gas inlet switch valve 24 is connected with the reaction gas inlet of the fuel cell stack through a pipeline, the humidity sensor 25 is arranged on a pipeline between the second gas inlet switch valve 24 and the fuel cell stack, the heat exchanger 23 is connected with the cooling circulating water pipeline of the fuel cell stack, and the water inlet of the heat exchanger 23 is connected with the cooling circulating water outlet of the fuel cell stack;
The humidifying water circulation pipeline 4 comprises a circulating water pump 41, a radiator 42, a pipeline heater 43, a water inlet temperature sensor 44 and a water outlet temperature sensor 45, wherein a water inlet of the circulating water pump 41 is connected with a water outlet of the humidifier 3, the water outlet of the circulating water pump 41 is connected with the radiator 42 through a pipeline, the water inlet temperature sensor 44 is arranged on a pipeline between the radiator 42 and the water inlet of the pipeline heater 43, the water outlet of the pipeline heater 43 is connected with the water inlet of the humidifier 3 through a pipeline, and the water outlet temperature sensor 45 is arranged on a pipeline between the water outlet of the pipeline heater 43 and the water inlet of the humidifier 3;
the water supplementing pipeline 5 comprises a water supplementing switch valve 51, a water inlet of the water supplementing switch valve 51 is connected with a water source, and a water outlet of the water supplementing switch valve 51 is connected with the humidifier 3.
The radiator 42 is a plate heat exchanger or an air-cooled radiator.
The pipeline heater 43 is divided into two sections of high-power and low-power heating, the two sections of heating work simultaneously to meet the requirement of rapid temperature rise when the water temperature is low, and the low-power heating meets the requirement of stable operation.
The water replenishing switch valve 51 of the water replenishing pipeline 5 is a floating ball switch valve or a photoelectric liquid level switch.
The pipeline heater 43, the water inlet temperature sensor 44, the water outlet temperature sensor 45, the temperature sensor 21, the humidity sensor 25 and the radiator 42 are all in communication connection with a controller, and the controller is used for controlling the heating temperature of the humidifying circulating water and the temperature and humidity of the reaction gas entering the fuel cell stack.
The radiator 3 comprises a bubbling humidification area 32, a spraying humidification area 31 positioned at the upper part of the bubbling humidification area 32 and a water storage area 33 positioned at the lower part of the bubbling humidification area 32, wherein the lower part of the bubbling humidification area 32 is provided with an air inlet, the top of the spraying humidification area 31 is provided with an air outlet and a water inlet, the bottom of the water storage area 33 is provided with a water outlet, and the water inlet is connected with the water outlet through a humidifying water circulation pipeline 4;
The spray humidification area 31 comprises a spray plate 311, a first filler layer 312 and a first gas uniform distribution plate 313 from top to bottom, wherein the first filler layer 312 is filled by porous fiber non-woven fabrics or stainless steel wire meshes;
The bubbling humidification area 32 comprises a second air flow uniform distribution plate 321 and a second filler layer 322 from top to bottom, and the second filler layer 322 is filled by ceramic pall rings or stainless steel meshes;
The water storage area 33 is communicated with the bubbling humidification area 32 through a conduit 34, the upper end of the conduit is higher than the second filler layer 322, and the lower end of the conduit 34 is immersed below the liquid level of the water storage area 33.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The high-power fuel cell test platform gas temperature and humidity regulation system is characterized by comprising a humidifier (3), wherein the humidifier (3) is connected with a reaction gas inlet pipeline (1), a humidifier gas outlet pipeline (2), a humidifying water circulation pipeline (4) and a water supplementing pipeline (5);
The reaction gas inlet pipeline (1) comprises a first inlet switch valve (11) and a one-way valve (12), one end of the first inlet switch valve (11) is connected with a gas source, the other end of the first inlet switch valve (11) is connected with one end of the one-way valve (12) through a pipeline, and the other end of the one-way valve (12) is connected with a gas inlet of the humidifier (3);
The humidifier air outlet pipeline (2) comprises a temperature sensor (21), a gas-liquid separator (22), a heat exchanger (23), a second air inlet switch valve (24) and a humidity sensor (25), one end of the gas-liquid separator (22) is connected with an air outlet of the humidifier (3) through a pipeline, the temperature sensor (21) is arranged on a pipeline between the gas-liquid separator (22) and the air outlet of the humidifier (3), the other end of the gas-liquid separator (22) is connected with the heat exchanger (23) through a pipeline, the heat exchanger (23) is connected with the second air inlet switch valve (24) through a pipeline, the second air inlet switch valve (24) is connected with a reaction gas inlet of the fuel cell stack through a pipeline, the humidity sensor (25) is arranged on a pipeline between the second air inlet switch valve (24) and the fuel cell stack, the heat exchanger (23) is connected with a cooling circulating water pipeline of the fuel cell stack, and a water inlet of the heat exchanger (23) is connected with a cooling circulating water outlet of the fuel cell stack;
the humidifying water circulation pipeline (4) comprises a circulating water pump (41), a radiator (42), a pipeline type heater (43), a water inlet temperature sensor (44) and a water outlet temperature sensor (45), wherein a water inlet of the circulating water pump (41) is connected with a water outlet of the humidifier (3), the water outlet of the circulating water pump (41) is connected with the radiator (42) through a pipeline, the water inlet temperature sensor (44) is arranged on a pipeline between the radiator (42) and the water inlet of the pipeline type heater (43), a water outlet of the pipeline type heater (43) is connected with the water inlet of the humidifier (3) through a pipeline, and the water outlet temperature sensor (45) is arranged on a pipeline between the water outlet of the pipeline type heater (43) and the water inlet of the humidifier (3);
the water supplementing pipeline (5) comprises a water supplementing switch valve (51), a water inlet of the water supplementing switch valve (51) is connected with a water source, and a water outlet of the water supplementing switch valve (51) is connected with the humidifier (3);
The pipeline heater (43), the water inlet temperature sensor (44), the water outlet temperature sensor (45), the temperature sensor (21), the humidity sensor (25) and the radiator (42) are all in communication connection with a controller, and the controller is used for controlling the heating temperature of the humidifying circulating water and the temperature and the humidity of the reaction gas entering the fuel cell stack;
The humidifier (3) comprises a bubbling humidification area (32), a spraying humidification area (31) positioned at the upper part of the bubbling humidification area (32) and a water storage area (33) positioned at the lower part of the bubbling humidification area (32), wherein an air inlet is arranged at the lower part of the bubbling humidification area (32), an air outlet and a water inlet are arranged at the top of the spraying humidification area (31), a water outlet is arranged at the bottom of the water storage area (33), and the water inlet is connected with the water outlet through a humidifying water circulation pipeline (4);
The spraying humidification area (31) comprises a spraying plate (311), a first filler layer (312) and a first gas uniform distribution plate (313) from top to bottom, and the first filler layer (312) is formed by filling porous fiber non-woven fabrics or stainless steel wire meshes;
the bubbling humidification area (32) comprises a second filler layer (321) and a second air flow uniform distribution plate (322) from top to bottom, and the second filler layer (321) is filled by ceramic pall rings or stainless steel meshes;
The water storage area (33) is communicated with the bubbling humidification area (32) through a conduit (34), the upper end of the conduit is higher than the second filler layer (321), and the lower end of the conduit (34) is immersed below the liquid level of the water storage area (33).
2. The high-power fuel cell testing platform gas temperature and humidity regulation system according to claim 1, wherein the radiator (42) is a plate heat exchanger or an air-cooled radiator.
3. The high-power fuel cell testing platform gas temperature and humidity control system according to claim 1, wherein the water supplementing switch valve (51) of the water supplementing pipeline (5) is a floating ball switch valve or a photoelectric liquid level switch.
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| CN201811455255.1A CN109597452B (en) | 2018-11-30 | 2018-11-30 | High-power fuel cell test platform gas temperature and humidity regulation system |
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| CN201811455255.1A CN109597452B (en) | 2018-11-30 | 2018-11-30 | High-power fuel cell test platform gas temperature and humidity regulation system |
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| CN109597452B true CN109597452B (en) | 2024-05-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190300A (en) * | 2019-05-16 | 2019-08-30 | 苏州市华昌能源科技有限公司 | The control system and its control method of fuel cell |
| CN111370735B (en) * | 2020-03-19 | 2021-07-02 | 浙江锋源氢能科技有限公司 | Fuel cell humidifying system |
| CN111509276B (en) * | 2020-04-30 | 2021-09-10 | 苏州纳尔森能源科技有限公司 | Combined humidifier of fuel cell |
| CN111948547A (en) * | 2020-06-09 | 2020-11-17 | 山东东岳高分子材料有限公司 | Proton exchange membrane hydrogen fuel cell dry-wet cycle testing device |
| CN111883803B (en) * | 2020-07-31 | 2021-06-29 | 上海交通大学 | Fuel cell humidification system pressure self-adaptive balancing method based on membrane humidification |
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| CN109597452A (en) | 2019-04-09 |
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