A test platform for hydrogen fuel cell hydrogen supply module

Abstract

The present invention discloses a test platform for a hydrogen fuel cell hydrogen supply module, including a host computer control system cabinet and a detection frame, the detection frame includes a hydrogen inlet interface, a hydrogen outlet interface and a test fixture, the test fixture is provided with a test piece hydrogen inlet and a test piece hydrogen outlet, a manual ball valve, a main circuit pressure regulating valve and a main circuit solenoid valve are connected between the hydrogen inlet interface and the test piece hydrogen inlet through a pipeline, a hydrogen discharge needle valve is connected between the test piece hydrogen outlet and the hydrogen outlet interface, the test fixture is also provided with a test piece main hydrogen return port, a pipeline between the test piece hydrogen outlet and the hydrogen discharge needle valve is provided with a first bifurcation, a fourth ball valve and a first manual return valve are connected between the first bifurcation and the test piece main hydrogen return port, and a pressure sensor and a temperature sensor are provided beside the test piece hydrogen inlet, the test piece hydrogen outlet and the test piece main hydrogen return port. The test platform can monitor key parameters such as the main flow, hydrogen return flow, and stack pressure in the hydrogen supply module, and collect, summarize and evaluate the pressure drop of inlet and outlet hydrogen in real time.

Description

Technical Field

[0001] The invention relates to a test platform for a hydrogen supply module of a hydrogen fuel cell. Background Art

[0002] The existing hydrogen fuel cell hydrogen supply module mainly includes multiple electric valves, a pressure reducing valve, a first ejector, a second ejector and a hydrogen-water separator, wherein the nozzle inlets of the first ejector and the second ejector are connected to each other, the inlet of the hydrogen-water separator, the ejector outlets of the first ejector and the second ejector are connected to each other, and the drainage inlet of the second ejector is connected to the outlet of the hydrogen-water separator; the main core component of the hydrogen fuel cell hydrogen supply module is the ejector, which is a widely used fluid machine that realizes energy conversion through the jet of high-pressure fluid, and thus does not consume mechanical energy. The existing hydrogen fuel cell hydrogen supply module detection tools mostly only detect the reliability of the electric valves and the pressure reducing valve, and cannot detect the performance and matching of the ejector in the hydrogen fuel cell hydrogen supply module. Summary of the invention

[0003] The present invention provides a test platform for a hydrogen fuel cell hydrogen supply module, which is used to solve the problem in the prior art that the ejector performance of the hydrogen fuel cell hydrogen supply module cannot be tested.

[0004] The technical solution of the present invention is achieved in this way:

[0005] The purpose of the present invention is to provide a test platform for a hydrogen fuel cell hydrogen supply module, comprising a host computer control system cabinet and a detection frame, the detection frame comprising a hydrogen inlet interface and a hydrogen outlet interface for connecting to an external hydrogen cylinder, and a test fixture for connecting to a tested component, a test piece hydrogen inlet and a test piece hydrogen outlet are provided on the test fixture, a manual ball valve, a main line pressure regulating valve and a main line solenoid valve are sequentially connected between the hydrogen inlet interface and the test piece hydrogen inlet through a pipeline, a hydrogen discharge needle valve is connected between the test piece hydrogen outlet and the hydrogen outlet interface through a pipeline, and the test piece is characterized in that: the test fixture is also provided with a test piece main hydrogen return port, a first bifurcation pipe is provided between the test piece hydrogen outlet and the hydrogen discharge needle valve, a fourth ball valve and a first manual return valve are connected between the bifurcation of the first bifurcation pipe and the test piece main hydrogen return port, and a pressure sensor and a temperature sensor are provided beside the test piece hydrogen inlet, the test piece hydrogen outlet and the test piece main hydrogen return port.

[0006] The above-mentioned test tooling is also provided with a test piece hydrogen return port, a second branch pipe is provided between the fourth ball valve and the first manual return valve, a second manual return valve is connected between the first branch port of the second branch pipe and the test piece hydrogen return port, and a pressure sensor and a temperature sensor are also provided next to the test piece hydrogen return port.

[0007] The above-mentioned test piece hydrogen inlet, test piece hydrogen outlet, test piece main hydrogen return port and test piece branch hydrogen return port are all provided with two pipe joints of different sizes.

[0008] A third branch pipe is provided between the manual ball valve and the main pressure regulating valve, and a branch pressure regulating valve and a third ball valve are connected in sequence between the third branch opening of the third branch pipe and the second branch opening of the second branch pipe.

[0009] A branch pressure gauge is connected between the branch pressure regulating valve and the third ball valve.

[0010] A mass flow regulating valve is connected between the manual ball valve and the main pressure regulating valve.

[0011] A first hydrogen mass flow meter is connected between the third ball valve and the first manual return valve, and a second hydrogen mass flow meter is connected between the fourth ball valve and the second manual return valve.

[0012] The above-mentioned test fixture is also provided with two valve detection interfaces, and a first ball valve is also connected between the main electromagnetic valve and the hydrogen inlet of the test piece, and the two valve detection interfaces are respectively connected to the two ends of the first ball valve.

[0013] A hydrogen discharge pressure regulating assembly and a hydrogen discharge solenoid valve are also connected between the hydrogen outlet of the test piece and the hydrogen discharge needle valve. Pressure sensors ΔP for detecting pressure difference are connected in parallel at both ends of the hydrogen discharge pressure regulating assembly. The first branch pipe is arranged between the hydrogen discharge pressure regulating assembly and the hydrogen discharge solenoid valve.

[0014] The above-mentioned hydrogen exhaust pressure regulating assembly includes a pressure regulating needle valve and a back pressure regulating valve. The pressure regulating needle valve is connected in series between the hydrogen outlet of the test piece and the first branch pipe, and the back pressure regulating valve is arranged beside the outlet of the pressure regulating needle valve.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The test platform of the hydrogen fuel cell hydrogen supply module comprises a host computer control system cabinet and a test frame, the test frame comprises a hydrogen inlet interface and a hydrogen outlet interface for connecting to an external hydrogen cylinder, and a test fixture for connecting to a tested component, the test fixture is provided with a test piece hydrogen inlet and a test piece hydrogen outlet, a manual ball valve, a main line pressure regulating valve and a main line solenoid valve are sequentially connected between the hydrogen inlet interface and the test piece hydrogen inlet through a pipeline, a hydrogen discharge needle valve is connected between the test piece hydrogen outlet and the hydrogen outlet interface through a pipeline, and the feature is that: the test fixture is also provided with a test piece main hydrogen return port, a first bifurcation pipe is provided between the test piece hydrogen outlet and the hydrogen discharge needle valve, a fourth ball valve and a first manual return valve are connected between the bifurcation of the first bifurcation pipe and the test piece main hydrogen return port, and a pressure sensor and a temperature sensor are provided beside the test piece hydrogen inlet, the test piece hydrogen outlet and the test piece main hydrogen return port. The test platform can monitor key parameters such as the main flow, return hydrogen flow, and stack pressure in the hydrogen supply module, as well as other parameters such as the pressure drop of inlet and outlet hydrogen for real-time collection, summary, and evaluation.

[0017] 2. Other advantages of the present invention are described in detail in the embodiment section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 An appearance diagram of a test platform for a hydrogen fuel cell hydrogen supply module provided in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the test platform for the hydrogen supply module of the hydrogen fuel cell. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1 and Figure 2 As shown, the present embodiment provides a test platform for a hydrogen fuel cell hydrogen supply module, which is used to perform a performance matching test of the hydrogen supply module and a performance test of a hydrogen return ejector, wherein the hydrogen supply module comprises an electric valve 94, a pressure reducing valve, a first ejector 91, a second ejector 92 and a hydrogen-water separator 93, wherein the nozzle inlets of the first ejector 91 and the second ejector 92 are interconnected to form an ejection main inlet 901, the inlet of the hydrogen-water separator 93, the ejector outlets of the first ejector 91 and the second ejector 92 are interconnected to form an ejection main outlet 902, the drainage inlet of the first ejector 91 forms a first hydrogen return port 904, the drainage inlet of the second ejector 92 is connected to the outlet of the hydrogen-water separator 93 to form a second hydrogen return port 903, and a pair of valve detection ports 905 are formed at both ends of the electric valve 94.

[0022] The test platform of the hydrogen fuel cell hydrogen supply module includes a host computer and a detection frame 100, the detection frame 100 includes a hydrogen inlet interface 11 and a hydrogen outlet interface 19 for connecting to an external hydrogen cylinder, and a test fixture 3 for connecting to a tested component, the test fixture 3 is provided with a test piece hydrogen inlet 31 and a test piece hydrogen outlet 32, the hydrogen inlet interface 11 and the test piece hydrogen inlet 31 are connected in sequence through a pipeline with a manual ball valve 12, a main line pressure regulating valve 13 and a main line solenoid valve 14, the test piece hydrogen outlet 32 ​​is connected to the test piece hydrogen outlet 31 through a pipeline, and the test piece hydrogen outlet 31 is connected to the test piece hydrogen outlet 32 ​​through a pipeline. 2 and the hydrogen outlet interface 19 are connected with a hydrogen discharge needle valve 18 through a pipeline, and the feature is that: the test fixture 3 is also provided with a test piece main hydrogen return port 34, a first bifurcated pipe is provided between the test piece hydrogen outlet 32 ​​and the hydrogen discharge needle valve 18, a fourth ball valve 21 and a first manual return valve 23 are connected between the bifurcation 51 of the first bifurcated pipe and the test piece main hydrogen return port 34, and a pressure sensor P1 and a temperature sensor T1 are provided beside the test piece hydrogen inlet 31, the test piece hydrogen outlet 32 ​​and the test piece main hydrogen return port 34.

[0023] During the test, the hydrogen inlet 31 of the test piece is connected to the main injection inlet 901 of the hydrogen supply module under test, the hydrogen outlet 32 ​​of the test piece is connected to the main injection outlet 902 of the hydrogen supply module under test, the main hydrogen return port 34 of the test piece is connected to the first hydrogen return port 904 of the hydrogen supply module under test, the main pressure regulating valve 13, the main solenoid valve 14, the first injector 91 of the hydrogen supply module under test and the hydrogen discharge needle valve 18 form a hydrogen injection channel, and the fork 51 of the first bifurcated pipe, the fourth ball valve 21, the first manual return valve 23 and the first hydrogen return port 904 form a first hydrogen return channel. When the manual ball valve 12 is opened, hydrogen enters the test platform from the hydrogen inlet interface 11, most of it is discharged from the test platform after passing through the hydrogen injection channel, and a small part of the hydrogen returns to the hydrogen supply module under test from the first hydrogen return channel. The main pressure regulating valve 13 reduces the hydrogen inlet pressure of the hydrogen injection channel to within the range of 3 to 20 bar; the main solenoid valve 14 is connected and communicated with the host computer control system cabinet 8, and the host computer control system cabinet 8 controls the switch to remotely control the supply and stop of hydrogen; the first manual return valve 23 realizes the control of the first hydrogen return channel. The pressure sensor P1 and the temperature sensor T1 beside the test piece hydrogen inlet 31, the test piece hydrogen outlet 32 ​​and the test piece main hydrogen return port 34 monitor the hydrogen injection amount and the return hydrogen injection amount of the hydrogen supply module in real time, so as to achieve the purpose of monitoring the main flow, return hydrogen flow, stack pressure and other key parameters in the hydrogen supply module, as well as real-time collection, summary and evaluation of other parameters such as the pressure drop of the inlet and outlet hydrogen.

[0024] The above-mentioned test fixture 3 is also provided with a test piece hydrogen return port 33, a second branch pipe is provided between the fourth ball valve 21 and the first manual return valve 23, a second manual return valve 22 is connected between the first branch port 52 of the second branch pipe and the test piece hydrogen return port 33, and a pressure sensor P1 and a temperature sensor T1 are also provided next to the test piece hydrogen return port 33.

[0025] The test piece hydrogen return port 33 is connected to the second hydrogen return port 903 of the hydrogen supply module under test, and the first fork 52, the second manual return valve 22 and the second hydrogen return port 903 form a second hydrogen return channel; the pressure sensor P1 and the temperature sensor T1 next to the test piece hydrogen return port 33 monitor the hydrogen return amount of the second hydrogen return channel in real time, realizing the characteristic test analysis in the parallel working test of the multi-stage ejector and the hydrogen return hydrogen-water separator.

[0026] The above-mentioned test piece hydrogen inlet 31, test piece hydrogen outlet 32, test piece main hydrogen return port 34 and test piece sub-hydrogen return port 33 are each provided with two pipe joints of different sizes. The user can select the corresponding pipe joint to be connected according to the size of the pipeline of the module being tested. In this embodiment, the sizes of the two pipe joints are 1 / 2″ and 3 / 8″ respectively.

[0027] A third bifurcated pipe is provided between the manual ball valve 12 and the main pressure regulating valve 13, and a branch pressure regulating valve 41 and a third ball valve 42 are sequentially connected between the third bifurcated port 54 of the third bifurcated pipe and the second bifurcated port 53 of the second bifurcated pipe. The third bifurcated port 54, the branch pressure regulating valve 41 and the third ball valve 42 form a hydrogen replenishment branch channel. When the hydrogen supply in the first hydrogen return channel and the second hydrogen return channel is insufficient to meet the experimental test requirements, the third ball valve 42 is opened, and hydrogen enters the first hydrogen return channel and the second hydrogen return channel through the hydrogen replenishment branch channel, thereby achieving the purpose of replenishing the hydrogen supply.

[0028] A branch pressure gauge P2 is connected between the branch pressure regulating valve 41 and the third ball valve 42. The branch pressure gauge P2 detects the amount of hydrogen in the branch channel.

[0029] A mass flow control valve M1 is connected between the manual ball valve 12 and the main pressure regulating valve 13, a first hydrogen mass flow meter M2 is connected between the third ball valve 42 and the first manual return valve 23, and a second hydrogen mass flow meter M3 is connected between the fourth ball valve 21 and the second manual return valve 22. The mass flow control valve M1 is connected and communicated with the host computer control system cabinet 8 to detect data in real time, and control and adjust the mass flow according to system requirements; the first hydrogen mass flow meter M2 and the second hydrogen mass flow meter M3 are connected and communicated with the host computer control system cabinet 8 to detect the mass flow of hydrogen in real time.

[0030] The test fixture 3 is further provided with two valve detection interfaces 35 . A first ball valve 14 is further connected between the main electromagnetic valve 13 and the hydrogen inlet 31 of the test piece. The two valve detection interfaces 35 are respectively connected to both ends of the first ball valve 14 .

[0031] The two valve detection interfaces 35 are respectively connected to a pair of valve detection ports 905 of the hydrogen supply module under test. The first ball valve 14 is used to manually adjust the supply and stop of hydrogen. When the electric valve 94 of the hydrogen supply module under test is connected to the test platform, the first ball valve 14 is closed for testing.

[0032] A hydrogen discharge pressure regulating assembly 16 and a hydrogen discharge solenoid valve 17 are also connected between the hydrogen outlet 32 ​​of the test piece and the hydrogen discharge needle valve 18. Pressure sensors ΔP for detecting the pressure difference between the two ends of the hydrogen discharge pressure regulating assembly 16 are connected in parallel at both ends of the hydrogen discharge pressure regulating assembly 16. The first bifurcated pipe is arranged between the hydrogen discharge pressure regulating assembly 16 and the hydrogen discharge solenoid valve 17. The hydrogen discharge solenoid valve 17 realizes the discharge of hydrogen in the hydrogen supply system, and the hydrogen discharge solenoid valve 17 is connected and communicated with the upper computer control system cabinet 8 to realize automatic control. The hydrogen discharge pressure regulating assembly 16 realizes the regulation of the discharged hydrogen pressure, and the pressure sensor ΔP realizes the detection of the hydrogen pressure difference before and after the hydrogen discharge pressure regulating assembly 16, and is connected and communicated with the upper computer control system cabinet 8, making the test safer.

[0033] The above-mentioned hydrogen exhaust pressure regulating assembly 16 includes a pressure regulating needle valve 44 and a back pressure regulating valve 43. The pressure regulating needle valve 44 is connected in series between the test piece hydrogen outlet 32 ​​and the first branch pipe, and the back pressure regulating valve 43 is arranged beside the outlet of the pressure regulating needle valve 44. The back pressure regulating valve 43 can release the pressure of the hydrogen injection channel to form a stable pressure in the system, making the test safer.

[0034] The test platform for the hydrogen supply module of the hydrogen fuel cell described in this embodiment can fully reflect the working status of the hydrogen supply system, with high measurement accuracy and comprehensive test functions; it can realize the performance test of a single component, direct overall performance test of multiple components of the system and parallel characteristic test of a multi-stage system; it has a safe and reliable operating space, strong isolation capability, a simpler operating interface and a high degree of data visualization.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test platform for a hydrogen fuel cell hydrogen supply module, comprising a host computer control system cabinet (8) and a test frame (100), the test frame (100) comprising a hydrogen inlet interface (11) and a hydrogen outlet interface (19) for connecting to an external hydrogen cylinder, and a test fixture (3) for connecting to a tested component, the test fixture (3) being provided with a test piece hydrogen inlet (31) and a test piece hydrogen outlet (32), a manual ball valve (12), a main line pressure regulating valve (13) and a main line solenoid valve (14) being sequentially connected between the hydrogen inlet interface (11) and the test piece hydrogen inlet (31) through a pipeline, a hydrogen discharge needle valve (18) being connected between the test piece hydrogen outlet (32) and the hydrogen outlet interface (19) through a pipeline, characterized in that: The test fixture (3) is also provided with a test piece main hydrogen return port (34); a first bifurcated pipe is provided between the test piece hydrogen outlet (32) and the hydrogen discharge needle valve (18); a fourth ball valve (21) and a first manual return valve (23) are connected between the bifurcation (51) of the first bifurcated pipe and the test piece main hydrogen return port (34); and pressure sensors and temperature sensors are provided beside the test piece hydrogen inlet (31), the test piece hydrogen outlet (32) and the test piece main hydrogen return port (34); The test fixture (3) is also provided with a test piece hydrogen return port (33), a second bifurcated pipe is provided between the fourth ball valve (21) and the first manual return valve (23), a second manual return valve (22) is connected between the first bifurcated port (52) of the second bifurcated pipe and the test piece hydrogen return port (33), and a pressure sensor and a temperature sensor are also provided next to the test piece hydrogen return port (33); The test piece hydrogen inlet (31), the test piece hydrogen outlet (32), the test piece main hydrogen return port (34) and the test piece branch hydrogen return port (33) are all provided with two pipe joints of different sizes; A third bifurcated pipe is provided between the manual ball valve (12) and the main pressure regulating valve (13), and a branch pressure regulating valve (41) and a third ball valve (42) are sequentially connected between the bifurcated port (54) of the third bifurcated pipe and the second bifurcated port (53) of the second bifurcated pipe; A hydrogen discharge pressure regulating component (16) and a hydrogen discharge solenoid valve (17) are also connected between the hydrogen outlet (32) of the test piece and the hydrogen discharge needle valve (18); pressure sensors (ΔP) for detecting pressure differences are connected in parallel at both ends of the hydrogen discharge pressure regulating component (16); and the first branch pipe is arranged between the hydrogen discharge pressure regulating component (16) and the hydrogen discharge solenoid valve (17); The hydrogen exhaust pressure regulating assembly (16) comprises a pressure regulating needle valve (44) and a back pressure regulating valve (43); the pressure regulating needle valve (44) is connected in series between the test piece hydrogen outlet (32) and the first branch pipe; and the back pressure regulating valve (43) is arranged beside the outlet of the pressure regulating needle valve (44).

2. A test platform for a hydrogen fuel cell hydrogen supply module according to claim 1, characterized in that: A branch pressure gauge (P2) is connected between the branch pressure regulating valve (41) and the third ball valve (42).

3. A test platform for a hydrogen fuel cell hydrogen supply module according to claim 2, characterized in that: A mass flow regulating valve (M1) is connected between the manual ball valve (12) and the main line pressure regulating valve (13).

4. A test platform for a hydrogen fuel cell hydrogen supply module according to claim 3, characterized in that: A first hydrogen mass flow meter (M2) is connected between the third ball valve (42) and the first manual return valve (23), and a second hydrogen mass flow meter (M3) is connected between the fourth ball valve (21) and the second manual return valve (22).

5. A test platform for a hydrogen fuel cell hydrogen supply module according to any one of claims 1 to 4, characterized in that: The test fixture (3) is also provided with two valve detection interfaces (35), a first ball valve is also connected between the main electromagnetic valve (14) and the hydrogen inlet (31) of the test piece, and the two valve detection interfaces (35) are respectively connected to two ends of the first ball valve.

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