Fuel cell test platform gas dew point control device

Abstract

The utility model discloses a gas dew point control device for a fuel cell test platform, belongs to the technical field of fuel cell test, and aims to solve the problems that the temperature of dew point gas cannot be controlled, so that the temperature of the dew point gas entering a fuel cell is constant, and the effective detection on the performance of the fuel cell is influenced. A heat exchanger is fixed to the top of one side face of the side plate. By arranging the heat exchanger, bubbles sprayed from the aeration head can have a certain temperature, so that the gas temperature is convenient to control, by arranging the heater, water in the spraying tank can be raised to the required temperature, the gas temperature is further improved, and by arranging the thermometer, the temperature of the water in the spraying tank can be raised to the required temperature. Water in the spraying tank can be heated to a required temperature through the heater, so that dew-point gases with different temperatures can be injected into the fuel cell, and the performance of the fuel cell can be effectively detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel cell testing, and in particular relates to a gas dew point control device for a fuel cell testing platform. Background Art

[0002] The dew point of the gas in the fuel cell will directly affect the conduction of protons in the membrane, thereby affecting the performance of the battery. During the fuel cell test, different dew point gas temperatures will result in different battery performance, but the current gas dew point control device cannot control the dew point gas temperature, making the dew point gas temperature entering the fuel cell constant, which affects the effective detection of fuel cell performance.

[0003] Therefore, a fuel cell test platform gas dew point control device is needed to solve the problem in the prior art that the dew point gas temperature cannot be controlled so that the dew point gas temperature entering the fuel cell is constant, which affects the effective detection of the fuel cell performance. Utility Model Content

[0004] The utility model aims to provide a gas dew point control device for a fuel cell test platform to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas dew point control device for a fuel cell test platform, comprising a bottom plate, a side plate fixed to one side of the top surface of the bottom plate, a heat exchanger fixed to the top of one side of the side plate, an air intake pipe connected to one side of the top surface of the heat exchanger, a first connecting pipe connected to one side of the bottom surface of the heat exchanger, a spray tank fixed to the other side of the top surface of the bottom plate, the first connecting pipe penetrates the spray tank, an aeration head is fixed to one end of the first connecting pipe, the aeration head is located inside the spray tank, a second connecting pipe is connected to the other side of the top surface of the heat exchanger, an atomizing nozzle is fixed to one end of the second connecting pipe, a circulating pump is fixed to the middle part of the top surface of the bottom plate, an input end of the circulating pump is connected to the outer side wall of the spray tank, an output end of the circulating pump is connected to a third connecting pipe, and one end of the third connecting pipe is connected to the other side of the bottom surface of the heat exchanger.

[0006] It should be noted in the scheme that a wire mesh demister is fixed on the top surface of the spray tank.

[0007] It is further worth explaining that an air collecting hood is fixed on the top surface of the wire mesh demister, a fourth connecting pipe is connected through the top surface of the air collecting hood, a support rod is fixed on the top of the outer wall of the spray tank, a dew point meter is fixed on the top of the support rod, and one end of the fourth connecting pipe is connected to the input end of the dew point meter.

[0008] It should be further explained that a packing layer is fixed in the middle of the inner wall of the spray tank, and the packing layer is located between the aeration head and the atomizing nozzle.

[0009] As a preferred embodiment, a thermometer is connected through the bottom of the inner wall of the spray tank, and a heater is connected through the bottom of the inner wall of the spray tank.

[0010] As a preferred embodiment, a liquid level meter is connected through the bottom of the inner wall of the spray tank.

[0011] Compared with the prior art, the gas dew point control device for a fuel cell test platform provided by the utility model has at least the following beneficial effects:

[0012] (1) The heat exchanger is provided so that the bubbles ejected from the aeration head can have a certain temperature, thereby making it easier to control the gas temperature. The heater is provided so that the water in the spray tank can be raised to the required temperature, further increasing the gas temperature. The thermometer is provided so that the water in the spray tank can be heated to the required temperature by the heater, thereby injecting dew point gases of different temperatures into the fuel cell, facilitating effective detection of the fuel cell performance.

[0013] (2) The atomizing nozzle is set to wet the gas, thereby increasing the humidity of the gas.

[0014] (3) By setting up a wire mesh demister, water droplets will not be entrained in the gas entering the dew point meter, thereby preventing water droplets from entering the fuel cell and affecting the performance of the fuel cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the spray tank of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the gas collecting hood of the utility model.

[0018] In the figure:

[0019] 100, bottom plate; 101, side plate; 102, heat exchanger; 103, air inlet pipe; 104, first connecting pipe; 105, aeration head;

[0020] 200, second connecting pipe; 201, atomizing nozzle; 202, third connecting pipe; 203, circulating pump;

[0021] 300, spray tank; 301, support rod; 302, dew point meter; 303, fourth connecting pipe; 304, gas collecting hood;

[0022] 400, wire mesh demister;

[0023] 500, packing layer;

[0024] 600. Thermometer;

[0025] 700, liquid level gauge;

[0026] 800. Heater. DETAILED DESCRIPTION

[0027] See also Figure 1-3 The utility model provides a gas dew point control device for a fuel cell test platform, comprising a bottom plate 100, a side plate 101 is fixed to one side of the top surface of the bottom plate 100, a heat exchanger 102 is fixed to the top of one side of the side plate 101, an air inlet pipe 103 is connected to one side of the top surface of the heat exchanger 102, a first connecting pipe 104 is connected to one side of the bottom surface of the heat exchanger 102, a spray tank 300 is fixed to the other side of the top surface of the bottom plate 100, the first connecting pipe 104 penetrates the spray tank 300, and one end of the first connecting pipe 104 is fixed to An aeration head 105 is provided, and the aeration head 105 is located inside the spray tank 300. A second connecting pipe 200 is connected to the other side of the top surface of the heat exchanger 102, and an atomizing nozzle 201 is fixed to one end of the second connecting pipe 200. A circulation pump 203 is fixed to the middle of the top surface of the bottom plate 100, and the input end of the circulation pump 203 is connected to the outer wall of the spray tank 300. The output end of the circulation pump 203 is connected to the third connecting pipe 202, and one end of the third connecting pipe 202 is connected to the other side of the bottom surface of the heat exchanger 102.

[0028] Further as Figure 2 As shown, a wire mesh demister 400 is fixed on the top surface of the spray tank 300 .

[0029] By setting the wire mesh demister 400, the gas reaching the dew point temperature after being sprayed from the aeration head 105 can pass through the wire mesh demister 400 to remove a small amount of water droplets entrained in the gas.

[0030] Further as Figure 2 As shown, an air collecting hood 304 is fixed on the top surface of the wire mesh demister 400, and a fourth connecting pipe 303 is connected to the top surface of the air collecting hood 304. A support rod 301 is fixed to the top of the outer wall of the spray tank 300, and a dew point meter 302 is fixed to the top of the support rod 301. One end of the fourth connecting pipe 303 is connected to the input end of the dew point meter 302.

[0031] The gas collecting hood 304 is provided so that the gas passing through the wire mesh demister 400 can be collected by the gas collecting hood 304 , and the dew point meter 302 is provided so that the temperature of the gas discharged into the fuel cell can be detected.

[0032] This solution has the following working process: when injecting different temperature dew point gases into the fuel cell to test the battery performance, first start the heater 800, the heater 800 heats the water inside the spray tank 300, and then injects the gas into the heat exchanger 102 through the air inlet pipe 103, so that the gas temperature is close to the temperature corresponding to the set dew point. The gas enters the spray tank 300 through the first connecting pipe 104, and under the action of the aeration head 105, the gas is broken into fine bubbles, and the bubbles are fully in contact with the high-temperature water inside the spray tank 300, and the humidity of the gas is increased while continuing to heat up. The heater 800 at the bottom of the spray tank 300 is associated with the thermometer 600, which heats the water in the spray tank 300 so that the water can reach the required temperature. The gas coming out of the liquid surface enters the packing layer 500, and there is a large amount of water attached to the surface of the packing layer 500. When the gas passes through the packing layer 500, it further contacts with the water, increasing the humidity of the gas. After passing through the packing layer 500, the gas enters the atomizing spray area. This area transports the high-temperature water at the bottom of the spray tank 300 to the atomizing nozzle 201 through the circulating pump 203. The atomizing nozzle 201 atomizes the water into fine water droplets and falls down, and contacts the rising gas in countercurrent, which can finally ensure that the gas can reach the temperature and humidity corresponding to the required dew point temperature. After contacting the gas, the atomized water droplets fall into the packing layer 500 to keep the packing layer 500 moist, and finally fall back to the bottom of the spray tank 300. The gas that reaches the dew point temperature finally passes through the wire mesh demister 400 to remove a small amount of water droplets entrained by the gas, and is discharged into the dew point meter 302 through the third connecting pipe 303202 to measure the dew point gas temperature, and then enters the fuel cell, and the performance of the fuel cell can be tested by the detection equipment. By observing the changes in the thermometer 600, the heater 800 can be controlled to heat the water to different temperatures, thereby controlling the different dew point gas temperatures.

[0033] According to the above working process, it can be known that: by means of the heat exchanger 102, the bubbles sprayed from the aeration head 105 can have a certain temperature, so that the gas temperature can be easily controlled; by means of the heater 800, the water in the spray tank 300 can be raised to the required temperature, further increasing the temperature of the gas; by means of the thermometer 600, the water in the spray tank 300 can be heated to the required temperature by the heater 800, so that dew point gases of different temperatures can be injected into the fuel cell, facilitating effective detection of the fuel cell performance.

[0034] The atomizing nozzle 201 is provided so that the gas can be wetted, thereby increasing the humidity of the gas.

[0035] By providing the wire mesh demister 400, water droplets are not entrained in the gas entering the dew point meter 302, thereby preventing water droplets from entering the fuel cell and affecting the performance of the fuel cell.

[0036] Further as Figure 2 As shown, a packing layer 500 is fixed to the middle of the inner wall of the spray tank 300 , and the packing layer 500 is located between the aeration head 105 and the atomizing nozzle 201 , and the aeration head 105 and the atomizing nozzle 201 are arranged opposite to each other.

[0037] By providing the packing layer 500 , the gas is further in contact with water when passing through the packing layer 500 , thereby increasing the humidity of the gas.

[0038] Further as Figure 2 As shown, a thermometer 600 is connected through the bottom of the inner wall of the spray tank 300 , and a heater 800 is connected through the bottom of the inner wall of the spray tank 300 , and the heater 800 is connected to the thermometer 600 .

[0039] The heater 800 is able to heat the water inside the spray tank 300 to a desired temperature by means of the thermometer 600 .

[0040] Further as Figure 2 As shown, a liquid level meter 700 is connected through the bottom of the inner wall of the spray tank 300 .

[0041] By means of the provided liquid level meter 700, the liquid level in the spray tank 300 can be monitored at any time, and when the liquid level is insufficient, water can be added immediately.

[0042] In summary: when injecting different temperature dew point gases into the fuel cell to test the battery performance, first start the heater 800, the heater 800 heats the water inside the spray tank 300, and then injects the gas into the heat exchanger 102 through the air inlet pipe 103, so that the gas temperature is close to the temperature corresponding to the set dew point. The gas enters the spray tank 300 through the first connecting pipe 104, and under the action of the aeration head 105, the gas is broken into fine bubbles, and the bubbles are fully in contact with the high-temperature water inside the spray tank 300, and the humidity of the gas is increased while continuing to heat up. The heater 800 at the bottom of the spray tank 300 is associated with the thermometer 600, which heats the water in the spray tank 300 so that the water can reach the required temperature. The gas coming out of the liquid surface enters the packing layer 500, and there is a large amount of water attached to the surface of the packing layer 500. When the gas passes through the packing layer 500, it further contacts with the water, increasing the humidity of the gas. After passing through the packing layer 500, the gas enters the atomizing spray area. This area transports the high-temperature water at the bottom of the spray tank 300 to the atomizing nozzle 201 through the circulating pump 203. The atomizing nozzle 201 atomizes the water into fine water droplets and falls down, and contacts the rising gas in countercurrent, which can finally ensure that the gas can reach the temperature and humidity corresponding to the required dew point temperature. After contacting the gas, the atomized water droplets fall into the packing layer 500 to keep the packing layer 500 moist, and finally fall back to the bottom of the spray tank 300. The gas that reaches the dew point temperature finally passes through the wire mesh demister 400 to remove a small amount of water droplets entrained by the gas, and is discharged into the dew point meter 302 through the third connecting pipe 303202 to measure the dew point gas temperature, and then enters the fuel cell, and the performance of the fuel cell can be tested by the detection equipment. By observing the changes in the thermometer 600, the heater 800 can be controlled to heat the water to different temperatures, thereby controlling the different dew point gas temperatures.

[0043] The heat exchanger 102, aeration head 105, circulation pump 203, spray tank 300, dew point meter 302, wire mesh demister 400, packing layer 500, thermometer 600, liquid level meter 700 and heater 800 can be purchased on the market, which are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel cell test platform gas dew point control device, comprising a base plate (100), characterized in that: A side plate (101) is fixed to one side of the top surface of the bottom plate (100); a heat exchanger (102) is fixed to the top of one side of the side plate (101); an air inlet pipe (103) is connected through one side of the top surface of the heat exchanger (102); a first connecting pipe (104) is connected through one side of the bottom surface of the heat exchanger (102); a spray tank (300) is fixed to the other side of the top surface of the bottom plate (100); the first connecting pipe (104) passes through the spray tank (300); an aeration head (105) is fixed to one end of the first connecting pipe (104); the aeration head (105) is connected to the other side of the top surface of the bottom plate (100); 5) is located inside the spray tank (300), a second connecting pipe (200) is connected through the other side of the top surface of the heat exchanger (102), an atomizing nozzle (201) is fixed at one end of the second connecting pipe (200), a circulating pump (203) is fixed at the middle of the top surface of the bottom plate (100), an input end of the circulating pump (203) is connected through the outer wall of the spray tank (300), an output end of the circulating pump (203) is connected to a third connecting pipe (202), and one end of the third connecting pipe (202) is connected through the other side of the bottom surface of the heat exchanger (102).

2. A fuel cell test platform gas dew point control device according to claim 1, characterized in that: A wire mesh demister (400) is fixed on the top surface of the spray tank (300).

3. A fuel cell test platform gas dew point control device according to claim 2, characterized in that: A gas collecting hood (304) is fixed on the top surface of the wire mesh demister (400), a fourth connecting pipe (303) is connected through the top surface of the gas collecting hood (304), a support rod (301) is fixed on the top of the outer wall of the spray tank (300), a dew point meter (302) is fixed on the top of the support rod (301), and one end of the fourth connecting pipe (303) is connected to the input end of the dew point meter (302).

4. A fuel cell test platform gas dew point control device according to claim 3, characterized in that: A packing layer (500) is fixed in the middle of the inner wall of the spray tank (300), and the packing layer (500) is located between the aeration head (105) and the atomizing nozzle (201).

5. A fuel cell test platform gas dew point control device according to claim 4, characterized in that: A thermometer (600) is connected through the bottom of the inner wall of the spray tank (300), and a heater (800) is connected through the bottom of the inner wall of the spray tank (300).

6. A fuel cell test platform gas dew point control device according to claim 5, characterized in that: A liquid level meter (700) is connected through the bottom of the inner wall of the spray tank (300).

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