Fuel cell hydrogen intake smart module

Abstract

This utility model relates to the field of intelligent hydrogen inlet modules for fuel cells, and discloses an intelligent hydrogen inlet module for fuel cells, including a proportional valve. A solenoid valve is provided at the front end of the proportional valve, and a first hydrogen inlet front-end pressure sensor and a second hydrogen inlet front-end pressure sensor are respectively provided on the right side of the solenoid valve. A compression fitting is provided at the lower front end of the second hydrogen inlet front-end pressure sensor, and an air inlet is opened at the front end of the compression fitting. An air outlet is opened on the corresponding rear side of the air inlet and located at the rear side of the valve body. The intelligent hydrogen inlet module for fuel cells of this utility model can detect changes in hydrogen pressure at the rear end of the stack in real time, ensuring stable hydrogen supply to the hydrogen engine, ensuring hydrogen utilization rate of the fuel cell, improving the performance of the fuel cell engine, and meeting different inlet flow requirements for low power and high power, making the hydrogen inlet regulation function simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell hydrogen entry intelligent module technology, specifically a fuel cell hydrogen entry intelligent module. Background Technology

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. It boasts advantages such as fast start-up, zero pollution, high specific power, high electrical efficiency, low noise, and the ability to achieve cold starts at low temperatures. The hydrogen supply system is one of the core subsystems of the fuel cell engine, playing a crucial role in providing a stable flow and pressure of hydrogen to the fuel cell engine and managing the internal water balance of the fuel cell stack. In practical operation, it is necessary to study and optimize the hydrogen supply system to increase the hydrogen utilization rate of the fuel cell and improve the performance of the fuel cell engine.

[0003] In the Balance of Production (BOP) of a hydrogen fuel cell engine, the fuel cell hydrogen supply system, as a crucial component of the fuel cell system, plays a vital role in providing the fuel cell with a stable flow and pressure of hydrogen. Before hydrogen enters the fuel cell stack, the intake flow rate needs to be controlled according to the different power outputs of the hydrogen engine, requiring an effective modular control system to ensure stable hydrogen output. However, existing engine hydrogen intake equipment lacks corresponding pressure regulation devices for the hydrogen supply, failing to meet the operational requirements of different hydrogen supply pressures. Therefore, there is an urgent need to design a fuel cell hydrogen intake intelligent regulation module to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a smart hydrogen intake module for fuel cells to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fuel cell hydrogen inlet intelligent module includes a proportional valve. A solenoid valve is provided at the front end of the proportional valve, and a first hydrogen inlet front-end pressure sensor and a second hydrogen inlet front-end pressure sensor are respectively provided on the right side of the solenoid valve. A compression fitting is provided at the lower front end of the second hydrogen inlet front-end pressure sensor, and an air inlet is provided at the front end of the compression fitting. An air outlet is provided on the corresponding rear side of the air inlet and located on the rear side of the valve body. A first plug is provided at the front side directly below the second hydrogen inlet front-end pressure sensor, and a second plug is provided at the lower right side of the valve body. A hydrogen module valve body is provided on the left side of the second plug.

[0007] Preferably, the first hydrogen inlet front pressure sensor is located to the left of the second hydrogen inlet front pressure sensor.

[0008] Preferably, the first hydrogen inlet front-end pressure sensor is responsible for detecting the gas pressure in the flow channel at the front end of the solenoid valve.

[0009] Preferably, the solenoid valve is responsible for opening or closing the gas source channel.

[0010] Preferably, the proportional valve is responsible for adjusting the feed flow rate according to different system power requirements.

[0011] Preferably, the second hydrogen inlet front-end pressure sensor is used to detect the pressure in the flow channel behind the proportional valve.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The intelligent hydrogen inlet module of the fuel cell of the present invention can detect the change of hydrogen pressure at the back end of the stack in real time, ensure the stable hydrogen supply of the hydrogen engine, ensure the hydrogen utilization rate of the fuel cell, improve the performance of the fuel cell engine, meet the different inlet flow requirements of low power and high power, and make the hydrogen inlet adjustment function simple and reliable. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is an overall structural diagram of the fuel cell hydrogen inlet intelligent module of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the fuel cell hydrogen inlet intelligent module of this utility model;

[0016] Figure 3 This is a side view of the fuel cell hydrogen inlet intelligent module of this utility model;

[0017] Figure 4 This is a front view of the fuel cell hydrogen inlet intelligent module of this utility model;

[0018] Figure 5 This is a top view of the fuel cell hydrogen inlet intelligent module of this utility model;

[0019] In the diagram: 1-proportional valve, 2-solenoid valve, 3-first hydrogen inlet front-end pressure sensor, 4-second hydrogen inlet front-end pressure sensor, 5-first plug, 6-second plug, 7-ferrule connector, 8-hydrogen module valve body, 9-outlet side, 10-inlet, 11-valve body. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0021] Please see Figure 1-5 A fuel cell hydrogen inlet intelligent module includes a proportional valve 1, a solenoid valve 2 at the front end of the proportional valve 1, and a first hydrogen inlet front-end pressure sensor 3 and a second hydrogen inlet front-end pressure sensor 4 respectively at the right side of the solenoid valve 2. A compression fitting 7 is provided at the lower front end of the second hydrogen inlet front-end pressure sensor 4, and an air inlet 10 is provided at the front end of the compression fitting 7. An air outlet 9 is provided at the corresponding rear side of the air inlet 10 and at the rear side of the valve body 11. A first plug 5 is provided at the front side directly below the second hydrogen inlet front-end pressure sensor 4. A second plug 6 is provided at the lower right side of the valve body 11, and a hydrogen module valve body 8 is provided on the left side of the second plug 6.

[0022] The first hydrogen inlet front pressure sensor 3 is located to the left of the second hydrogen inlet front pressure sensor 4.

[0023] Among them, the first hydrogen inlet front-end pressure sensor 3 is responsible for detecting the gas pressure in the flow channel at the front end of the solenoid valve 2.

[0024] Among them, solenoid valve 2 is responsible for opening or closing the gas source channel.

[0025] Among them, proportional valve 1 is responsible for adjusting the feed flow rate according to different system power requirements.

[0026] Among them, the second hydrogen inlet front-end pressure sensor 4 is used to detect the pressure in the flow channel behind the proportional valve 1.

[0027] It should be noted that the hydrogen route of this fuel cell hydrogen intake intelligent module is as follows: hydrogen source --- first hydrogen intake front-end pressure sensor 3 --- solenoid valve 2 --- proportional valve 1 --- second hydrogen intake front-end pressure sensor 4 --- fuel cell stack --- part enters solenoid valve 2 and part passes through the gas-water separator and then recirculates back to the fuel cell stack.

[0028] The structure and function of this module:

[0029] The first hydrogen inlet front-end pressure sensor 3 is responsible for detecting the gas pressure in the flow channel in front of the solenoid valve 2 to ensure the safe operation of this module; the solenoid valve 2 is responsible for opening or closing the gas source channel; the proportional valve 1 is responsible for adjusting the feed flow rate according to different system power requirements; the second hydrogen inlet front-end pressure sensor 4 detects the pressure in the flow channel behind the proportional valve 1 to meet the working process requirements.

[0030] Working principle of the hydrogen intake intelligent module: Hydrogen enters the valve body 11. The first hydrogen intake front-end pressure sensor 3 at the hydrogen front end detects the pressure in real time. After the solenoid valve 2 is opened, the proportional valve 1 opens the intake flow rate at different ratios according to the power requirements of the hydrogen engine. The reactor pressure sensor detects the changes in the hydrogen pressure at the rear end of the reactor in real time to ensure the stable hydrogen supply to the hydrogen engine.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A fuel cell hydrogen inlet intelligent module, comprising a proportional valve (1), characterized in that: The proportional valve (1) is provided with a solenoid valve (2) at its front end, and a first hydrogen inlet front pressure sensor (3) and a second hydrogen inlet front pressure sensor (4) are respectively provided on the right side of the solenoid valve (2). A compression fitting (7) is provided at the lower front end of the second hydrogen inlet front pressure sensor (4), and an air inlet (10) is provided at the front end of the compression fitting (7). An air outlet (9) is provided on the corresponding rear side of the air inlet (10) and on the rear side of the valve body (11). A first plug (5) is provided on the front side directly below the second hydrogen inlet front pressure sensor (4). A second plug (6) is provided on the lower right side of the valve body (11), and a hydrogen module valve body (8) is provided on the left side of the second plug (6).

2. The fuel cell hydrogen inlet intelligent module according to claim 1, characterized in that: The first hydrogen inlet front pressure sensor (3) is located to the left of the second hydrogen inlet front pressure sensor (4).

3. The fuel cell hydrogen inlet intelligent module according to claim 1, characterized in that: The first hydrogen inlet front-end pressure sensor (3) is responsible for detecting the gas pressure in the flow channel at the front end of the solenoid valve (2).

4. The fuel cell hydrogen inlet intelligent module according to claim 1, characterized in that: The solenoid valve (2) is responsible for opening or closing the gas source channel.

5. A fuel cell hydrogen inlet intelligent module according to claim 1, characterized in that: The proportional valve (1) is responsible for adjusting the feed flow rate according to the different power requirements of the system.

6. A fuel cell hydrogen inlet intelligent module according to claim 1, characterized in that: The second hydrogen inlet front pressure sensor (4) is used to detect the pressure in the flow channel behind the proportional valve (1).

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