A fuel control device for a fuel cell test system

Abstract

The present invention discloses a fuel control device for a fuel cell test system, comprising: an air intake control pipeline, an air outlet control pipeline, a humidifier and a water make-up device, the air intake control pipeline comprising an air intake connecting flange, a pressure reducing valve, a solenoid valve and a mass flow controller; the air outlet control pipeline comprising an air outlet connecting flange, a pressure sensor, a temperature and humidity sensor, an air outlet pressure regulating valve and a water trap; the water make-up device comprising a water make-up tank and a water make-up pump; a humidifier inlet, a humidifier outlet and a humidifier water make-up port are provided on the top of the humidifier; the air intake connecting flange is connected to the pressure reducing valve, the solenoid valve, the mass flow controller and the humidifier inlet through a pipeline; the air outlet connecting flange is connected to the air outlet pressure regulating valve, the water trap and the humidifier outlet through a pipeline; the water make-up tank is connected to the water make-up pump and the humidifier water make-up port through a pipeline, and an integrated design is adopted, which can simultaneously control and adjust pressure, temperature, flow and humidity, and has stable operation.

Description

Technical Field

[0001] The present invention relates to the field of fuel cells, and in particular to a fuel control device for a fuel cell testing system. Background Art

[0002] A fuel cell test system is a platform for testing the electrical performance and efficiency of fuel cells. Factors affecting fuel cell performance include not only structural and material properties of the fuel cell, such as flow field structure, catalyst performance, and membrane electrode performance, but also operating conditions such as humidity, flow rate, pressure, and temperature. Therefore, the fuel cell test system must set operating conditions according to the fuel cell design to achieve the test objectives, and the corresponding conditions must be adjusted to achieve optimization. Currently, fuel cell test systems mostly use single-point designs for controlling humidity, flow rate, pressure, and temperature, lacking an integrated, independently operable device. Furthermore, the anode and cathode fuel gases are generally designed separately, resulting in poor versatility. Furthermore, due to the mutual influence of humidity, pressure, flow rate, and temperature, single-point designs result in complex control and low control accuracy, resulting in large fluctuations in the corresponding operating conditions and poor test result stability. Therefore, there is an urgent need for a fuel control device for a fuel cell test system that adopts an integrated design and can independently control the pressure, temperature, humidity, and flow rate of the fuel gas. This device is also versatile and applicable to anode and cathode gas operations, facilitating fuel test system design, ensuring experimental efficiency, and improving experimental quality. Summary of the Invention

[0003] The main technical problem solved by the present invention is to provide a fuel control device for a fuel cell testing system, which can solve the related problems in the background technology.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a fuel control device for a fuel cell test system, comprising: an air intake control pipeline 1, an air outlet control pipeline 2, a humidifier 3 and a water replenisher 4, wherein the air intake control pipeline 1 comprises an air intake connecting flange 5, a pressure reducing valve 6, a solenoid valve 7, and a mass flow controller 8; the air outlet control pipeline 2 comprises an air outlet connecting flange 14, a pressure sensor 15, a temperature and humidity sensor 16, an air outlet pressure regulating valve 17, and a steam trap 18; the water replenisher 4 comprises a pressure reducing valve 6, a solenoid valve 7, and a mass flow controller ... pressure reducing valve 6, a solenoid valve 7, and a mass flow controller 8; the water replenisher 4 comprises a pressure reducing valve 6, a pressure reducing valve 6, a pressure reducing valve 6, a pressure reducing valve 6, a mass flow controller 8; the water replenisher 4 comprises a pressure reducing valve 6, a pressure reducing valve 6, a pressure reducing valve 6, a mass flow controller 8; the water replenisher 4 comprises a pressure reducing valve 6, a pressure reducing valve 6, a pressure reducing valve 6, a mass flow controller 8; the water replenisher 4 comprises a pressure reducing valve 6, a pressure reducing valve 6, a pressure reducing valve 6, The water device 4 includes a water supply tank 12 and a water supply pump 13; the top of the humidifier 3 is provided with a humidifier inlet 9, a humidifier outlet 10, and a humidifier water supply port 11; the air inlet connecting flange 5 is connected to the pressure reducing valve 6, the solenoid valve 7, the mass flow controller 8, and the humidifier inlet 9 through a pipeline; the air outlet connecting flange 14 is connected to the air outlet pressure regulating valve 17, the steam trap 18 and the humidifier outlet 10 through a pipeline; the water supply tank 12 is connected to the water supply pump 13 and the humidifier water supply port 11 through a pipeline.

[0005] Preferably, the pressure sensor 15 and the temperature and humidity sensor 16 are located on the connecting pipeline between the outlet connecting flange 14 and the outlet pressure regulating valve 17 .

[0006] Preferably, the humidifier 3 is in the form of a spray type or a bubbling type, with a circular or frustum-shaped bottom, and the outlet pressure regulating valve 17 is an electromagnetic proportional regulating valve.

[0007] Preferably, a water outlet 19 and a water outlet control valve 20 are provided at the bottom of the humidifier 3; the water outlet 19 is connected to the water supply tank 12 through a pipeline through the water outlet control valve 20.

[0008] Preferably, a heater 21 is provided at the lower portion of the water replenishment tank 12 .

[0009] Preferably, the heater 21 is an electric heating rod or an electric heating wire.

[0010] The beneficial effects of the present invention are:

[0011] (1) With an integrated design, the device can simultaneously control and adjust pressure, temperature, flow, and humidity, and can work independently of other components of the system without being affected by other adjustments, and has stable operation.

[0012] (2) The design is universal and can be applied to both cathode fuel gas and anode fuel gas, facilitating system design.

[0013] (3) By setting the water supply tank, the humidification effect can be adjusted in real time. At the same time, by adding a heater to the water supply tank, the temperature of the deionized water can be adjusted to adjust the humidification efficiency and the fuel gas outlet temperature.

[0014] (4) The front end of the humidifier is equipped with a mass flow controller and the back end adopts an electromagnetic proportional control valve, which makes the flow and pressure regulation more stable through double regulation.

[0015] (5) The lower part of the humidifier is equipped with a water outlet and a water outlet control valve and is connected to the water replenisher to form a circulation control system. It is not only convenient to control the water level and humidification efficiency inside the humidifier, but also can reduce the amount of deionized water used for humidification and save resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0017] Figure 2 yes Figure 1 side view.

[0018] Figure 3 yes Figure 1 Front view of .

[0019] Figure 4It is a structural diagram of embodiment 2 of the present invention.

[0020] Figure 5 It is a structural diagram of embodiment 3 of the present invention.

[0021] Figure 6 It is a perspective view of the water replenishment tank in Example 3 of the present invention.

[0022] In the figure: 1. Air intake control pipeline; 2. Air outlet control pipeline; 3. Humidifier; 4. Water make-up device; 5. Air intake connection flange; 6. Pressure reducing valve; 7. Solenoid valve; 8. Mass flow controller; 9. Humidifier inlet; 10. Humidifier outlet; 11. Humidifier water make-up port; 12. Water make-up tank; 13. Water make-up pump; 14. Air outlet connection flange; 15. Pressure sensor; 16. Temperature and humidity sensor; 17. Air outlet pressure regulating valve; 18. Steam trap; 19. Water outlet; 20. Water outlet control valve; 21. Heater. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0024] Combine Figure 1 、 Figure 2 and Figure 3 .

[0025] Example 1:

[0026] The product of the present invention adopts an integrated design. By integrating the air intake control pipeline, the air outlet control pipeline, the water make-up device and the humidifier, the regulating functions are all integrated into the device. It has strong versatility and can be applied to the control of cathode and anode fuel gases at the same time. The air intake control pipeline 1 controls the air intake pressure and flow of the fuel; the air outlet control pipeline 2 controls the air outlet pressure of the fuel; the humidifier 3 controls the humidity and temperature of the fuel, and the bottom of the humidifier 3 is circular, and a bubbling humidifier is adopted, which does not contain a water outlet or a water outlet control valve. The front-end inlet control pipeline of the humidifier is integrated with a mass flow controller, and the rear end adopts electromagnetic proportional regulation to ensure the flow and pressure regulation accuracy; the air intake control pipeline 1 includes an air intake connecting flange 5, a pressure reducing valve 6, a solenoid valve 7, and a mass flow controller 8; the air outlet control pipeline 2 includes an air outlet connecting flange 14, a pressure sensor 15, a temperature and humidity sensor 16, an air outlet pressure regulating valve 17, steam trap 18; the water make-up device includes a water make-up tank 12 and a water make-up pump 13; the top of the humidifier 3 is provided with a humidifier inlet 9, a humidifier outlet 10, and a humidifier water make-up port 11; the air inlet connecting flange 5 is connected to the pressure reducing valve 6, the solenoid valve 7, the mass flow controller 8, and the humidifier inlet 9 through a pipeline; the air outlet connecting flange 14 is connected to the air outlet pressure regulating valve 17, and the steam trap 18 is connected to the humidifier outlet 10 through a pipeline; the water make-up tank 12 is connected to the water make-up pump 13 and the humidifier water make-up port 11 through a pipeline, and the water make-up tank 12 does not contain a heater, the pressure sensor 15 and the temperature and humidity sensor 16 are located on the connecting pipeline between the air outlet connecting flange 14 and the air outlet pressure regulating valve 17, the humidifier water outlet 19 and the water outlet control valve 20 are connected to the water make-up device 4, forming a circulation control system, which not only facilitates the control of the water level and humidification efficiency inside the humidifier 3, but also reduces the amount of deionized water used for humidification and saves resources.

[0027] Example 2:

[0028] The product of the present invention adopts an integrated design. By integrating the air intake control pipeline, the air outlet control pipeline, the water make-up device and the humidifier, the regulating functions are integrated into the device, which has strong versatility and can be applied to the control of cathode and anode fuel gases at the same time. By integrating the air intake control pipeline, the air outlet control pipeline, the water make-up device and the humidifier, the regulating functions are integrated into the device, which has strong versatility and can be applied to the control of cathode and anode fuel gases at the same time. The air intake control pipeline 1 controls the air intake pressure and flow rate of the fuel; the air outlet control pipeline 2 controls the air outlet pressure of the fuel; the humidifier 3 controls the humidity and temperature of the fuel, and the bottom of the humidifier 3 is a frustum, and a spray-type humidifier is adopted. The humidifier contains a water outlet and a water outlet control valve. The front-end inlet control pipeline of the humidifier is integrated with a mass flow controller, and the rear end adopts electromagnetic proportional regulation, which can ensure the flow and pressure regulation accuracy; the air intake control pipeline 1 includes an air intake connecting flange 5, a pressure reducing valve 6, a solenoid valve 7, and a mass flow controller 8; the air outlet control pipeline 2 includes an outlet Air connection flange 14, pressure sensor 15, temperature and humidity sensor 16, outlet pressure regulating valve 17, steam trap 18; the water replenisher includes a water replenishment tank 12, a water replenishment pump 13; the top of the humidifier 3 is provided with a humidifier inlet 9, a humidifier outlet 10, and a humidifier water replenishment port 11; the air inlet connection flange 5 is connected to the pressure reducing valve 6, the solenoid valve 7, the mass flow controller 8, and the humidifier inlet 9 through a pipeline; the air outlet connection flange 14 is connected to the air outlet pressure regulating valve 17, the steam trap 18 and the humidifier outlet 1 0 is connected through a pipeline; the water supply tank 12 is connected with the water supply pump 13 and the humidifier water supply port 11 through a pipeline, and the water supply tank 12 does not contain a heater. The pressure sensor 15 and the temperature and humidity sensor 16 are located on the connecting pipeline between the air outlet connecting flange 14 and the air outlet pressure regulating valve 17. The humidifier water outlet 19 and the water outlet control valve 20 are connected to the water supply device 4 to form a circulation control system, which not only facilitates the control of the water level and humidification efficiency inside the humidifier 3, but also reduces the amount of deionized water used for humidification, saving resources.

[0029] Example 3:

[0030] The product of the present invention adopts an integrated design. The air intake control pipeline 1 controls the air intake pressure and flow of the fuel; the air outlet control pipeline 2 controls the air outlet pressure of the fuel; the humidifier 3 controls the humidity and temperature of the fuel, and the bottom of the humidifier 3 is a truncated cone, and a spray humidifier is adopted. The humidifier contains a water outlet and a water outlet control valve; the air intake control pipeline 1 includes an air intake connecting flange 5, a pressure reducing valve 6, a solenoid valve 7, and a mass flow controller 8; the air outlet control pipeline 2 includes an air outlet connecting flange 14, a pressure sensor 15, a temperature and humidity sensor 16, an air outlet pressure regulating valve 17, and a steam trap 18; the water make-up device includes a water make-up tank 12 and a water make-up pump 13; the top of the humidifier 3 is provided with a humidifier inlet 9, a humidifier outlet 10, and a humidifier water make-up port 11; the air intake connecting flange 5 and the pressure reducing valve 6, the solenoid valve 7, the mass flow controller 8 The flow controller 8 and the humidifier inlet 9 are connected through a pipeline; the air outlet connecting flange 14 is connected to the air outlet pressure regulating valve 17, and the steam trap 18 is connected to the humidifier outlet 10 through a pipeline; the water supply tank 12 is connected to the water supply pump 13 and the humidifier water supply port 11 through a pipeline, and a heater 21 is provided at the lower part of the water supply tank 12. The heater 21 is an electric heating rod or an electric heating wire. This combination can improve the efficiency and accuracy of humidification and control the temperature of the outlet air. The pressure sensor 15 and the temperature and humidity sensor 16 are located on the connecting pipeline between the air outlet connecting flange 14 and the air outlet pressure regulating valve 17. The humidifier water outlet 19 and the water outlet control valve 20 are connected to the water supply device 4 to form a circulation control system, which not only facilitates the control of the water level and humidification efficiency inside the humidifier 3, but also reduces the amount of deionized water used for humidification and saves resources.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fuel control device for a fuel cell test system, characterized in that: include: An air intake control pipeline (1), an air outlet control pipeline (2), a humidifier (3) and a water replenisher (4), wherein the air intake control pipeline (1) comprises an air intake connection flange (5), a pressure reducing valve (6), a solenoid valve (7), and a mass flow controller (8); the air outlet control pipeline (2) comprises an air outlet connection flange (14), a pressure sensor (15), a temperature and humidity sensor (16), an air outlet pressure regulating valve (17), and a steam trap (18); the water replenisher (4) comprises a water replenishment tank (12) and a water replenishment pump (13); the top of the humidifier (3) is provided with a humidifier inlet (9), a humidifier outlet (10), The humidifier water supply port (11); the air inlet connecting flange (5) is connected to the pressure reducing valve (6), the solenoid valve (7), the mass flow controller (8), and the humidifier inlet (9) through a pipeline; the air outlet connecting flange (14) is connected to the air outlet pressure regulating valve (17), the steam trap (18) and the humidifier outlet (10) through a pipeline; the water supply tank (12) is connected to the water supply pump (13) and the humidifier water supply port (11) through a pipeline, and the pressure sensor (15) and the temperature and humidity sensor (16) are located on the connecting pipeline between the air outlet connecting flange (14) and the air outlet pressure regulating valve (17); The air intake control pipeline (1) controls the air intake pressure and flow rate of the fuel; the air outlet control pipeline (2) controls the air outlet pressure of the fuel; and the humidifier (3) controls the humidity and temperature of the fuel.

2. A fuel control device for a fuel cell testing system according to claim 1, characterized in that: The humidifier (3) is in the form of a spray type or a bubbling type, with a circular or frustum-shaped bottom, and the outlet pressure regulating valve (17) is an electromagnetic proportional regulating valve.

3. The fuel control device for a fuel cell testing system according to claim 1, characterized in that: A water outlet (19) and a water outlet control valve (20) are provided at the bottom of the humidifier (3); the water outlet (19) is connected to the water supply tank (12) via a pipeline through the water outlet control valve (20).

4. The fuel control device for a fuel cell testing system according to claim 1, characterized in that: A heater (21) is provided at the lower portion of the water replenishment tank (12).

5. The fuel control device for a fuel cell testing system according to claim 4, characterized in that: The heater (21) is an electric heating rod or an electric heating wire.

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