Performance testing device for a gas humidification tank and method of use thereof

Abstract

The present application relates to a kind of performance testing device and its use method for gas humidification tank, the performance of gas humidification tank is tested by gas supply system, humidification circuit system, gas humidification monitoring system after gas, detect the gas humidification capacity that gas humidification tank can achieve under different flow, different waterway temperature flow, solve the blank of gas humidification tank test.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and in particular to a performance testing device for a gas humidification tank and its usage method. Background Technology

[0002] As a novel green power source, fuel cell engines, with their high efficiency and low emissions, are gradually becoming a key focus of research and development for vehicle engines. However, during fuel cell stack testing, to meet the requirements of research and development testing, extreme testing, and other operating conditions, automotive membrane humidifiers and hydrogen recirculation devices cannot cover a humidity supply of 0-100% at 0-95℃. Therefore, specially developed spray-type humidification tanks must be used to humidify hydrogen and air. However, currently, there is no device that can test the gas humidification flow rate range, humidification capacity, and humidification saturation of the humidification tank. Summary of the Invention

[0003] The purpose of this invention is to overcome the deficiencies of the prior art by providing a performance testing device and its usage method for a gas humidification tank. The device tests the performance of the gas humidification tank through a gas supply system, a humidification circuit system, and a gas humidification post-humidification monitoring system, and detects the gas humidification capacity that the gas humidification tank can achieve under different flow rates and different water circuit temperatures and flow rates, thus filling the gap in the testing of gas humidification tanks.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A performance testing device for a gas humidification tank, the performance testing device comprising a gas supply system, a water replenishment system, a circulating water system, a tailpipe system, and a drainage system all connected to the gas humidification tank.

[0006] The gas supply system is used to provide pressurized, heated, and flow-rate gas to the gas humidification tank.

[0007] The water replenishment system is used to replenish the water consumed by the gas humidification tank.

[0008] The circulating water system is used to circulate and heat the water inside the gas humidification tank.

[0009] The exhaust system is used to control the exhaust gas pressure and to detect the exhaust gas pressure, humidity, and temperature.

[0010] The drainage system is used to drain water from the testing equipment and the gas humidification tank;

[0011] The gas supply system includes a gas inlet, a first ball valve, a gas filter, a pressure regulating valve, and a mass flow controller connected in sequence via pipelines. The mass flow controller is connected to the gas humidification tank via a pipeline. The first ball valve is used to control the gas supply. The gas filter is used to filter gas impurities. The pressure regulating valve is used to reduce the gas pressure to the pressure required for testing. The mass flow controller controls the gas supply volume.

[0012] The water replenishment system includes a water inlet, a second solenoid valve, and a check valve connected in sequence by pipes. The check valve is connected to the gas humidification tank by pipes. The second solenoid valve is used to control the water supply. The check valve is used to prevent gas backflow in the gas humidification tank.

[0013] The circulating water system includes a water pump, a heater, a plate heat exchanger, and a water filter connected in sequence by pipes. The water pump and the water filter are both connected to a gas humidification tank through pipes to realize the circulation of water. The water pump is used to provide power, the heater is used to heat the circulating water, the plate heat exchanger is used to cool the circulating water, and the water filter is used to filter impurities in the circulating water.

[0014] The exhaust system includes a back pressure valve and a gas exhaust outlet connected in sequence by pipes. The back pressure valve is connected to a gas humidification tank by pipes and is used to control the exhaust gas pressure.

[0015] The drainage system includes a first solenoid valve and a water outlet connected in sequence by a pipe. The first solenoid valve is connected to the gas humidification tank by a pipe and is used to drain water from the gas humidification tank.

[0016] Furthermore, the water replenishment system also includes a liquid level sensor, which is installed on the gas humidification tank and is used to detect the liquid level in the gas humidification tank.

[0017] Furthermore, a first temperature sensor and a first pressure sensor are connected in sequence via a pipeline between the pressure regulating valve and the mass flow controller. The first temperature sensor is used to monitor the gas temperature, and the first pressure sensor is used to monitor the gas pressure.

[0018] Furthermore, the gas inlet is connected to an external gas source.

[0019] Furthermore, the water inlet is connected to an external water source.

[0020] Furthermore, the plate heat exchanger is connected to a cooling water inlet and a cooling water outlet via pipes. A proportional valve is provided between the plate heat exchanger and the cooling water outlet via a pipe. The proportional valve is used to control the external cooling water flow rate and the cooling capacity of the plate heat exchanger.

[0021] Furthermore, a second temperature sensor is provided between the water pump and the gas humidification tank via a pipe. The second temperature sensor is used to detect the temperature of the circulating water in the gas humidification tank.

[0022] Furthermore, a third temperature sensor and a second pressure sensor are connected in sequence via pipes between the water filter and the gas humidification tank. The third temperature sensor is used to detect the circulating water temperature, and the second pressure sensor is used to detect the circulating water pressure.

[0023] Furthermore, a third pressure sensor, a fourth temperature sensor, and a humidity sensor are sequentially connected by pipes between the back pressure valve and the gas humidification tank. The third pressure sensor is used to detect the pressure of the gas after humidification by the gas humidification tank, the fourth temperature sensor is used to detect the temperature of the gas after humidification by the gas humidification tank, and the humidity sensor is used to detect the humidity of the gas after humidification by the gas humidification tank.

[0024] Furthermore, a branch line is drawn from the first solenoid valve and the water outlet and connected to the second ball valve via a pipe. The second ball valve is connected to the heater via a pipe and is used to drain the gas humidification tank.

[0025] Furthermore, the performance testing device also includes a central control system, which is used to read sensor data and control the valves of each system.

[0026] Furthermore, the present invention also provides a method for using a performance testing device for a gas humidification tank, the specific steps of which are as follows:

[0027] S1. Open the first ball valve and let the gas to be humidified enter the device through the first ball valve in sequence. It is filtered by the gas filter, the pressure is regulated by the pressure regulating valve, the supply gas flow is controlled by the mass flow controller, and the gas pressure and temperature are detected by the first temperature sensor and the first pressure sensor. The gas enters the gas humidification tank for humidification.

[0028] S2. During the test of the gas humidification tank, the circulating water inside the gas humidification tank is kept flowing through the circulating water system. The circulating water in the gas humidification tank is circulated by a water pump. The water pump draws water from the bottom of the gas humidification tank. The temperature of the circulating water in the gas humidification tank is detected by the second temperature sensor at the front end of the water pump. In order to control the temperature of the humidifying gas, the temperature of the circulating water is controlled. The circulating water is heated by a heater and cooled by a plate heat exchanger.

[0029] S3. The water consumed by the gas humidification tank during operation is replenished through the water replenishment system. The water replenishment system is controlled by the second solenoid valve and the liquid level sensor detects the liquid level in the gas humidification tank. When the liquid level is low, the second solenoid valve is opened to replenish water, and when the liquid level is high, the first solenoid valve is used to drain water.

[0030] S4. Verify the humidification function of the gas humidification tank under different pressures and temperatures through the tail exhaust system. Control the tail exhaust gas pressure through the back pressure valve, detect the tail exhaust gas pressure through the fourth temperature sensor, and detect the tail exhaust gas humidity through the humidity sensor.

[0031] Compared with the prior art, the advantages of the present invention are as follows:

[0032] 1. This invention provides a performance testing device for a gas humidification tank, which can detect the humidification capacity of the gas humidification tank under different gas pressures and temperatures at a specified gas flow rate;

[0033] 2. The performance testing device for gas humidification tanks provided by this invention can fill the gap in the performance testing of gas humidification tanks;

[0034] 3. The performance testing device for gas humidification tanks provided by the present invention can control different gas flow rates and different water circuit temperatures and flow rates to test the humidification tanks;

[0035] 4. The water temperature control of the performance testing device for the gas humidification tank provided by this invention can reach ±1℃, and the flow control accuracy can reach 0.8%RD+0.2%FS;

[0036] 5. The performance testing device for the gas humidification tank provided by the present invention has an automatic water replenishment and drainage function. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the performance testing device for the gas humidification tank of the present invention.

[0038] Explanation of reference numerals: 1. First ball valve; 2. Gas filter; 3. Pressure regulating valve; 4. First temperature sensor; 5. First pressure sensor; 6. Mass flow controller; 7. Gas humidifier tank; 8. Liquid level sensor; 9. First solenoid valve; 10. Second ball valve; 11. Second temperature sensor; 12. Water pump; 13. Heater; 14. Plate heat exchanger; 15. Proportional valve; 16. Water filter; 17. Third temperature sensor; 18. Second pressure sensor; 19. Humidity sensor; 20. Fourth temperature sensor; 21. Third pressure sensor; 22. Back pressure valve; 23. Check valve; 24. Second solenoid valve; 25. Central control system; 26. Gas inlet; 27. Water inlet; 28. Cooling water inlet; 29. ​​Cooling water outlet; 30. Gas exhaust outlet; 31. Water outlet. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0040] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Example

[0043] refer to Figure 1 This embodiment provides a performance testing device for a gas humidification tank. The performance testing device includes a gas supply system, a water replenishment system, a circulating water system, a tailpipe system, and a drainage system, all connected to the gas humidification tank 7.

[0044] The gas supply system is used to provide pressurized, heated, and flow-rate gas to the gas humidification tank 7.

[0045] The water replenishment system is used to replenish the consumed water to the gas humidification tank 7.

[0046] The circulating water system is used to circulate and heat the water inside the gas humidification tank 7.

[0047] The exhaust system is used to control the exhaust gas pressure and to detect the exhaust gas pressure, humidity, and temperature.

[0048] The drainage system is used to drain water from the test equipment and the gas humidification tank 7;

[0049] The gas supply system includes a gas inlet 26, a first ball valve 1, a gas filter 2, a pressure regulating valve 3, and a mass flow controller 6 connected in sequence via pipelines. The mass flow controller 6 is connected to the gas humidification tank 7 via a pipeline. The first ball valve 1 is used to control the gas supply. The gas filter 2 is used to filter gas impurities. The pressure regulating valve 3 is used to reduce the gas pressure to the pressure required for testing. The mass flow controller controls the gas supply.

[0050] The water replenishment system includes a water inlet 27, a second solenoid valve 24, and a one-way valve 23 connected in sequence by pipes. The one-way valve 23 is connected to the gas humidification tank 7 by pipes. The second solenoid valve 24 is used to control the water supply. The one-way valve 23 is used to prevent the backflow of gas in the gas humidification tank 7.

[0051] The circulating water system includes a water pump 12, a heater 13, a plate heat exchanger 14, and a water filter 16 connected in sequence by pipes. The water pump 12 and the water filter 16 are both connected to the gas humidification tank 7 by pipes to realize the circulation of water. The water pump 12 is used to provide power, the heater 13 is used to heat the circulating water, the plate heat exchanger 14 is used to cool the circulating water, and the water filter 16 is used to filter impurities in the circulating water.

[0052] The exhaust system includes a back pressure valve 22 and a gas exhaust outlet 30 connected in sequence by pipes. The back pressure valve 22 is connected to the gas humidification tank 7 by pipes. The back pressure valve 22 is used to control the exhaust gas pressure.

[0053] The drainage system includes a first solenoid valve 9 and a water outlet 31 connected in sequence by a pipe. The first solenoid valve 9 is connected to the gas humidification tank 7 by a pipe and is used to drain water from the gas humidification tank 7.

[0054] In this embodiment, the water replenishment system further includes a liquid level sensor 8, which is disposed on the gas humidification tank 7 and is used to detect the liquid level height in the gas humidification tank 7.

[0055] In this embodiment, a first temperature sensor 4 and a first pressure sensor 5 are connected in sequence via a pipe between the pressure regulating valve 3 and the mass flow controller 6. The first temperature sensor 4 is used to monitor the gas temperature, and the first pressure sensor 5 is used to monitor the gas pressure.

[0056] In this embodiment, the gas inlet 26 is connected to an external gas source.

[0057] In this embodiment, the water inlet 27 is connected to an external water source.

[0058] In this embodiment, the plate heat exchanger 14 is also connected to the cooling water inlet 28 and the cooling water outlet 29 via pipes. A proportional valve 15 is provided between the plate heat exchanger 14 and the cooling water outlet 29 via a pipe. The proportional valve 15 is used to control the external cooling water flow rate and control the cooling capacity of the plate heat exchanger 14.

[0059] In this embodiment, a second temperature sensor 11 is provided between the water pump 12 and the gas humidification tank 7 via a pipe. The second temperature sensor 11 is used to detect the temperature of the circulating water in the gas humidification tank 7.

[0060] In this embodiment, a third temperature sensor 17 and a second pressure sensor 18 are connected in sequence via pipes between the water filter 16 and the gas humidification tank 7. The third temperature sensor 17 is used to detect the temperature of the circulating water, and the second pressure sensor 18 is used to detect the pressure of the circulating water.

[0061] In this embodiment, a third pressure sensor 21, a fourth temperature sensor 20, and a humidity sensor 19 are connected in sequence via pipes between the back pressure valve 22 and the gas humidification tank 7. The third pressure sensor 21 is used to detect the pressure of the gas after humidification by the gas humidification tank 7, the fourth temperature sensor 20 is used to detect the temperature of the gas after humidification by the gas humidification tank 7, and the humidity sensor 19 is used to detect the humidity of the gas after humidification by the gas humidification tank 7.

[0062] In this embodiment, the first solenoid valve 9 and the water outlet 31 are also connected by a branch line to the second ball valve 10 through a pipe. The second ball valve 10 is connected to the heater 13 through a pipe. The second ball valve 10 is used to drain the gas humidification tank 7.

[0063] In this embodiment, the performance testing device further includes a central control system 25, which is used to read sensor data and control the valves of each system.

[0064] Furthermore, the present invention also provides a method for using a performance testing device for a gas humidification tank, the specific steps of which are as follows:

[0065] S1. Open the first ball valve 1 and let the gas to be humidified enter the device through the first ball valve 1 in sequence. It is filtered by the gas filter 2, the pressure is regulated by the pressure regulating valve 3, the supply gas flow is controlled by the mass flow controller 6, the gas pressure and temperature are detected by the first temperature sensor 4 and the first pressure sensor 5, and then it enters the gas humidification tank 7 for humidification.

[0066] S2. During the test of the gas humidification tank 7, the circulating water inside the gas humidification tank 7 is kept flowing through the circulating water system. The circulating water in the gas humidification tank 7 is circulated by the water pump 12. The water pump 12 draws water from the bottom of the gas humidification tank 7. The temperature of the circulating water in the gas humidification tank 7 is detected by the second temperature sensor 11 at the front end of the water pump 12. In order to control the temperature of the humidifying gas, the temperature of the circulating water is controlled. The circulating water is heated by the heater 13 and cooled by the plate heat exchanger 14. The temperature is controlled in a linkage manner.

[0067] S3. The water consumed by the gas humidification tank 7 during operation is replenished through the water replenishment system. The water replenishment system is controlled by the second solenoid valve 24. The liquid level sensor 8 detects the liquid level in the gas humidification tank 7. When the liquid level is low, the second solenoid valve 24 is opened to replenish water. When the liquid level is high, the first solenoid valve 9 is used to drain water.

[0068] S4. Verify the humidification function of the gas humidification tank 7 under different pressures and temperatures through the tail exhaust system. Control the tail exhaust gas pressure through the back pressure valve 22, detect the tail exhaust gas pressure through the fourth temperature sensor 20, and detect the tail exhaust gas humidity through the humidity sensor 19.

[0069] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A performance testing device for a gas humidification tank, characterized by, The performance testing device comprises a gas supply system, a water supplement system, a circulating water system, a tail gas exhaust system and a water drainage system connected with the gas humidification tank (7) simultaneously, The gas supply system is used for providing pressure, temperature and flow rate gas to the gas humidification tank (7), The water supplement system is used for supplementing consumed water to the gas humidification tank (7), The circulating water system is used for circulating and heating the moisture inside the gas humidification tank (7), The tail gas exhaust system is used for controlling the tail gas pressure and detecting the tail gas pressure, humidity and temperature, The water drainage system is used for draining water from the testing equipment and the gas humidification tank (7); The gas supply system comprises a gas inlet (26), a first ball valve (1), a gas filter (2), a pressure regulating valve (3) and a mass flow controller (6) connected with each other through pipelines, the mass flow controller (6) is connected with the gas humidification tank (7) through a pipeline, the first ball valve (1) is used for controlling the on-off of gas supply, the gas filter (2) is used for filtering gas impurities, the pressure regulating valve (3) is used for reducing the pressure of the gas to the required pressure for testing, and the mass flow controller controls the gas supply amount; The water supplement system comprises a water supplement inlet (27), a second electromagnetic valve (24) and a check valve (23) connected with each other through pipelines, the check valve (23) is connected with the gas humidification tank (7) through a pipeline, the second electromagnetic valve (24) is used for controlling the on-off of water supply, and the check valve (23) is used for preventing the reverse flow of gas in the gas humidification tank (7); The circulating water system comprises a water pump (12), a heater (13), a plate heat exchanger (14) and a water filter (16) connected with each other through pipelines, the water pump (12) and the water filter (16) are connected with the gas humidification tank (7) through pipelines to realize the circulating flow of water, the water pump (12) is used for providing power, the heater (13) is used for heating the circulating water, the plate heat exchanger (14) is used for cooling the circulating water, and the water filter (16) is used for filtering impurities in the circulating water; The tail gas exhaust system comprises a back pressure valve (22) and a gas tail exhaust outlet (30) connected with each other through pipelines, the back pressure valve (22) is connected with the gas humidification tank (7) through a pipeline, and the back pressure valve (22) is used for controlling the tail gas pressure; The water drainage system comprises a first electromagnetic valve (9) and a water outlet (31) connected with each other through pipelines, the first electromagnetic valve (9) is connected with the gas humidification tank (7) through a pipeline, and the first electromagnetic valve (9) is used for draining water from the gas humidification tank (7); A third pressure sensor (21), a fourth temperature sensor (20) and a humidity sensor (19) are arranged between the back pressure valve (22) and the gas humidification tank (7) and connected with each other through pipelines, the third pressure sensor (21) is used for detecting the pressure of the gas humidified by the gas humidification tank (7), the fourth temperature sensor (20) is used for detecting the temperature of the gas humidified by the gas humidification tank (7), and the humidity sensor (19) is used for detecting the humidity of the gas humidified by the gas humidification tank (7). The first electromagnetic valve (9) and the water outlet (31) also lead a branch to be connected with the second ball valve (10) through a pipeline, the second ball valve (10) is connected with the heater (13) through a pipeline, and the second ball valve (10) is used for draining the gas humidification tank (7).

2. The performance testing device for a gas humidification tank according to claim 1, wherein The water supplement system also comprises a liquid level sensor (8) arranged on the gas humidification tank (7), and the liquid level sensor (8) is used for detecting the liquid level height in the gas humidification tank (7).

3. A performance testing device for a gas humidification tank according to claim 2, wherein, The pressure regulating valve (3) and the mass flow controller (6) are connected in sequence through a pipeline and are provided with a first temperature sensor (4) and a first pressure sensor (5), the first temperature sensor (4) is used for monitoring the gas temperature, and the first pressure sensor (5) is used for monitoring the gas pressure.

4. The performance testing device for a gas humidification tank according to claim 1, wherein The gas inlet (26) is connected with an external gas source, and the water supplement inlet (27) is connected with an external water source.

5. The performance testing device for a gas humidification tank of claim 1, wherein, The plate heat exchanger (14) is also connected with a cooling water inlet (28) and a cooling water outlet (29) through a pipeline, a proportional valve (15) is arranged between the plate heat exchanger (14) and the cooling water outlet (29) and connected through a pipeline, and the proportional valve (15) is used for controlling the external cooling water flow and the cooling capacity of the plate heat exchanger (14).

6. A performance testing device for a gas humidification tank according to claim 3, wherein, The water pump (12) and the gas humidification tank (7) are connected through a pipeline and are provided with a second temperature sensor (11), and the second temperature sensor (11) is used for detecting the circulating water temperature of the gas humidification tank (7). The water filter (16) and the gas humidification tank (7) are connected in sequence through a pipeline and are provided with a third temperature sensor (17) and a second pressure sensor (18), the third temperature sensor (17) is used for detecting the circulating water temperature, and the second pressure sensor (18) is used for detecting the circulating water pressure.

7. The performance testing device for a gas humidification tank of claim 1, wherein, The performance testing device also comprises a central control system (25).

8. A use method of the performance testing device for the gas humidification tank according to claim 6, and the specific steps are as follows: S1, open the first ball valve (1), and make the gas to be humidified enter the device in sequence through the first ball valve (1), is filtered through the gas filter (2), is pressure-regulated through the pressure regulating valve (3), the gas flow is controlled through the mass flow controller (6), the gas pressure and temperature are detected through the first temperature sensor (4) and the first pressure sensor (5), and the gas is humidified in the gas humidification tank (7); S2, when the gas humidification tank (7) is tested, the circulating water in the gas humidification tank (7) is kept flowing through the circulating water system, the circulating water of the gas humidification tank (7) flows through the water pump (12), the water pump (12) takes water from the low place of the gas humidification tank (7), the circulating water temperature of the gas humidification tank (7) is detected through the second temperature sensor (11) in front of the water pump (12), the circulating water is temperature-controlled for controlling the humidified gas temperature, and the circulating water is heated through the heater (13) and the temperature is controlled through the plate heat exchanger (14) in linkage. S3, replenish the water consumed by the gas humidification tank (7) during operation through the water replenishing system, which is controlled by the second electromagnetic valve (24) and detects the liquid level in the gas humidification tank (7) through the liquid level sensor (8). When the liquid level is low, the second electromagnetic valve (24) is opened to replenish water. When the liquid level is high, the first electromagnetic valve (9) is used to drain water; S4, verify the humidification function of the gas humidification tank (7) under different pressures and temperatures through the tail exhaust system, which controls the tail exhaust gas pressure through the back pressure valve (22), detects the tail exhaust gas pressure through the fourth temperature sensor (20), and detects the tail exhaust gas humidity through the humidity sensor (19).

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