CN112255003B - Test platform of hydrogen fuel cell hydrogen return device - Google Patents
Test platform of hydrogen fuel cell hydrogen return device Download PDFInfo
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- CN112255003B CN112255003B CN202011242180.6A CN202011242180A CN112255003B CN 112255003 B CN112255003 B CN 112255003B CN 202011242180 A CN202011242180 A CN 202011242180A CN 112255003 B CN112255003 B CN 112255003B
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 314
- 239000001257 hydrogen Substances 0.000 title claims abstract description 314
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 266
- 238000012360 testing method Methods 0.000 title claims abstract description 166
- 239000000446 fuel Substances 0.000 title claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 59
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 48
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 29
- 238000007599 discharging Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 16
- 210000001503 joint Anatomy 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a test platform of a hydrogen fuel cell hydrogen return device, which comprises an upper computer and a test frame, wherein the test frame comprises a hydrogen inlet, a hydrogen outlet and a test tool, the test tool is provided with a test piece hydrogen inlet and a test piece hydrogen outlet, a manual ball valve, a main pressure regulating valve and a main solenoid valve are connected between the hydrogen inlet and the test piece hydrogen inlet, a hydrogen discharge needle valve is connected between the test piece hydrogen outlet and the hydrogen outlet, the test tool is also provided with a test piece main hydrogen return port, a fork is arranged between the test piece hydrogen outlet and the hydrogen discharge needle valve, a fourth ball valve and a first hydrogen return solenoid valve are connected between the fork and the test piece main hydrogen return port, a hydrogen spraying pressure regulating valve is connected and communicated with the upper computer, and pressure sensors and temperature sensors are arranged beside the test piece hydrogen inlet, the test piece hydrogen outlet and the test piece main hydrogen return port. The testing platform can measure key parameters such as the hydrogen return injection ratio, the hydrogen return pressure and the like when the hydrogen quantity is different.
Description
Technical Field
The invention relates to a test platform of a hydrogen return device of a hydrogen fuel cell.
Background
The hydrogen return device of the existing hydrogen fuel cell mainly comprises a plurality of electric valves, a pressure reducing valve, a first ejector, a second ejector and a hydrogen-water separator, wherein the inlets of nozzles of the first ejector and the second ejector are connected with each other, and the inlets of the hydrogen-water separator and the outlets of the ejectors of the first ejector and the second ejector are connected with each other; the hydrogen returning device is a core part of the hydrogen fuel cell engine, is the most critical core for improving the efficiency of the fuel cell engine, the performance of the hydrogen returning device directly influences the working efficiency of the fuel cell engine, as the core part, the stability of the performance needs to be subjected to strict technical tests, the pressure, the temperature, the humidity and the flow of the hydrogen returning device are all key influencing factors of the hydrogen returning device, any one factor can influence the output power of the hydrogen fuel cell engine, and the test of the hydrogen returning device is indispensable in the development stage of the fuel cell engine. However, the existing hydrogen return device detection tool does not detect the matching condition of the hydrogen return injection ratio under the condition of different hydrogen inlet amounts, and the detection is not comprehensive enough.
Disclosure of Invention
The invention provides a testing platform of a hydrogen return device of a hydrogen fuel cell, which is used for solving the problem that a detection tool of the hydrogen return device cannot detect the matching condition of the injection ratio of the hydrogen return under the condition of different hydrogen inlet amounts in the prior art.
The technical scheme of the invention is realized as follows:
The invention aims to provide a test platform of a hydrogen fuel cell hydrogen return device, which comprises an upper computer control system cabinet and a detection frame, wherein the detection frame comprises a hydrogen inlet and a hydrogen outlet which are used for being connected with an external hydrogen cylinder and a test tool which is used for being connected with a tested part, the test tool is provided with a test piece hydrogen inlet and a test piece hydrogen outlet, a manual ball valve, a main pressure regulating valve and a main solenoid valve are sequentially connected between the hydrogen inlet and the test piece hydrogen inlet through pipelines, and a hydrogen discharge needle valve is connected between the test piece hydrogen outlet and the hydrogen outlet through pipelines, and the test platform is characterized in that: the test fixture is further provided with a main hydrogen return port of the test piece, a pipeline between the hydrogen outlet of the test piece and the hydrogen discharge needle valve is provided with a first bifurcation pipe, a bifurcation of the first bifurcation pipe is connected with an inlet of a fourth ball valve, a first hydrogen return electromagnetic valve is connected between an outlet of the fourth ball valve and the main hydrogen return port of the test piece, a hydrogen spraying pressure regulating valve is connected between the main solenoid valve and the hydrogen inlet of the test piece, the hydrogen spraying pressure regulating valve is communicated with an upper computer control system cabinet, and a pressure sensor and a temperature sensor are arranged beside the hydrogen inlet of the test piece, the hydrogen outlet of the test piece and the main hydrogen return port of the test piece.
Above-mentioned test fixture still is equipped with the test piece and divides back hydrogen mouth, is connected with the second bifurcation pipe between the export of fourth ball valve and the first hydrogen solenoid valve that returns, is connected with the second hydrogen solenoid valve that returns between the bifurcation of second bifurcation pipe and the test piece branch hydrogen mouth that returns, and the test piece divides back hydrogen mouth side also to be equipped with pressure sensor and temperature sensor.
The test fixture is also provided with a test piece hydrogen-water separation port, a third hydrogen return electromagnetic valve is connected between the outlet of the fourth ball valve and the test piece hydrogen-water separation port, and a pressure sensor and a temperature sensor are also arranged beside the test piece hydrogen-water separation port.
The pipeline between the hydrogen inlet interface and the manual ball valve is provided with a third bifurcation pipe, a branch pressure regulating valve and a third ball valve are sequentially connected between a bifurcation of the third bifurcation pipe and an outlet of the fourth ball valve, and a branch pressure gauge is connected between the branch pressure regulating valve and the third ball valve.
And a third hydrogen mass flowmeter is further arranged beside the third hydrogen return electromagnetic valve, and a third hydrogen mass flowmeter is connected between the second bifurcation pipe and the fourth ball valve.
The hydrogen discharging pressure regulating assembly and the hydrogen discharging electromagnetic valve are further connected between the hydrogen outlet of the test piece and the hydrogen discharging needle valve, and the first bifurcation tube is arranged between the hydrogen discharging pressure regulating assembly and the hydrogen discharging electromagnetic valve.
The hydrogen discharging pressure regulating assembly comprises a buffer block and a pressure regulating needle valve which are connected between the hydrogen outlet of the test piece and the hydrogen discharging needle valve, and a flow regulating valve arranged beside the outlet of the pressure regulating needle valve.
The two ends of the hydrogen discharging pressure regulating component are connected in parallel with pressure sensors for detecting pressure difference, and a pressure relief valve is further connected between the hydrogen outlet of the test piece and the hydrogen discharging pressure regulating component.
The first test pipeline and the second test pipeline are connected in parallel between the main-way electromagnetic valve and the hydrogen inlet of the test piece, the first test pipeline comprises a first ball valve, the second test pipeline comprises a second ball valve and a pair of valve detection interfaces, and the hydrogen injection pressure regulating valve is detachably arranged on the valve detection interfaces.
The main path hydrogen pressure gauge is further arranged between the main path pressure regulating valve and the main path electromagnetic valve, the first test pipeline is further connected with the first hydrogen mass flowmeter in series, and the second test pipeline further comprises the second hydrogen mass flowmeter and the hydrogen pressure gauge which are connected between the second ball valve and the valve detection interface in series.
Compared with the prior art, the invention has the following advantages:
1. The test platform of hydrogen fuel cell hydrogen returning device, including host computer control system cabinet and detection frame, the detection frame is including being used for the hydrogen inlet and the hydrogen outlet that are connected with outside hydrogen bottle, and be used for the test fixture that is connected with the tested part, be equipped with test piece hydrogen inlet and test piece hydrogen outlet on the test fixture, hand ball valve, main way air-vent valve and main way solenoid valve have been connected gradually through the pipeline between hydrogen inlet and the test piece hydrogen inlet, have hydrogen discharging needle valve through the pipe connection between test piece hydrogen outlet and the hydrogen outlet, its characterized in that: the test fixture is further provided with a main hydrogen return port of the test piece, a pipeline between the hydrogen outlet of the test piece and the hydrogen discharge needle valve is provided with a first bifurcation pipe, a bifurcation of the first bifurcation pipe is connected with an inlet of a fourth ball valve, a first hydrogen return electromagnetic valve is connected between an outlet of the fourth ball valve and the main hydrogen return port of the test piece, a hydrogen spraying pressure regulating valve is connected between the main solenoid valve and the hydrogen inlet of the test piece, the hydrogen spraying pressure regulating valve is communicated with an upper computer control system cabinet, and a pressure sensor and a temperature sensor are arranged beside the hydrogen inlet of the test piece, the hydrogen outlet of the test piece and the main hydrogen return port of the test piece. The testing platform can measure key parameters influencing the hydrogen returning performance, such as the hydrogen returning injection ratio, the hydrogen returning pressure, the pressure difference, the temperature and the like, when the hydrogen quantity is different.
2. Other advantages of the present invention are described in detail in the examples section.
Drawings
Fig. 1 is an external view of a test platform of a hydrogen recycling device of a hydrogen fuel cell according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a test platform of a hydrogen fuel cell hydrogen return device;
fig. 3 is a wiring diagram of the test platform of the hydrogen return device of the hydrogen fuel cell when detecting the electric valve of the hydrogen return device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present embodiment provides a testing platform for a hydrogen returning device of a hydrogen fuel cell, which is used for detecting the hydrogen returning device of a hydrogen fuel cell engine, specifically detecting and measuring key parameters affecting the hydrogen returning performance, such as a hydrogen returning injection ratio, a hydrogen returning pressure, a pressure difference, a temperature, and the like, according to different required hydrogen amounts under different powers of the fuel cell. The hydrogen return device comprises an electric valve 94, a first ejector 91, a second ejector 92 and a hydrogen-water separator 93, wherein nozzle inlets of the first ejector 91 and the second ejector 92 are mutually connected to form an ejection main inlet 901, an inlet of the hydrogen-water separator 93, ejector outlets of the first ejector 91 and the second ejector 92 are mutually connected to form an ejection main outlet 902, a drainage inlet of the first ejector 91 forms a first hydrogen return port 903, a drainage inlet of the second ejector 92 forms a second hydrogen return port 904, an outlet of the hydrogen-water separator 93 forms a hydrogen-water separation detection port 905, and two ends of the electric valve 94 form a first valve detection port 906.
The test platform comprises an upper computer control system cabinet 8 and a detection frame 100, wherein the detection frame 100 comprises a hydrogen inlet 11 and a hydrogen outlet 19 which are connected with an external hydrogen cylinder, and a test tool 3 which is connected with a tested part, the test tool 3 is provided with a test piece hydrogen inlet 31 and a test piece hydrogen outlet 32, a manual ball valve 12, a main pressure regulating valve 13 and a main electromagnetic valve 14 are sequentially connected between the hydrogen inlet 11 and the test piece hydrogen inlet 31 through pipelines, and a hydrogen discharging needle valve 18 is connected between the test piece hydrogen outlet 32 and the hydrogen outlet 19 through pipelines, and the test platform is characterized in that: the test fixture 3 is further provided with a main hydrogen return port 33 of the test piece, a first branch pipe 51 is arranged in a pipeline between the hydrogen outlet 32 of the test piece and the hydrogen discharge needle valve 18, a fork of the first branch pipe 51 is connected with an inlet of the fourth ball valve 21, a first hydrogen return electromagnetic valve 22 is connected between an outlet of the fourth ball valve 21 and the main hydrogen return port 33 of the test piece, a hydrogen spraying pressure regulating valve 61 is connected between the main solenoid valve 14 and the hydrogen inlet 31 of the test piece, the hydrogen spraying pressure regulating valve 61 is communicated with the upper computer control system cabinet 8 in a connecting mode, and a pressure sensor P1 and a temperature sensor T1 are arranged beside the hydrogen inlet 31 of the test piece, the hydrogen outlet 32 of the test piece and the main hydrogen return port 33 of the test piece.
During testing, the test piece hydrogen inlet 31 is in butt joint with the injection main inlet 901 of the tested hydrogen return device, the test piece hydrogen outlet 32 is in butt joint with the injection main outlet 902 of the tested hydrogen return device, and the test piece main hydrogen return port 33 is in butt joint with the first hydrogen return port 903 of the tested hydrogen return device. The manual ball valve 12, the main path pressure regulating valve 13, the main path electromagnetic valve 14, the hydrogen injection pressure regulating valve 61, the first injector 91 and the hydrogen discharge needle valve 18 form a hydrogen injection channel, and the fork of the first bifurcation pipe 51, the fourth ball valve 21, the first hydrogen return electromagnetic valve 22 and the first hydrogen return port 903 form a first hydrogen return channel.
When the manual ball valve 12 is opened, hydrogen enters the hydrogen injection channel, most hydrogen passes through the hydrogen injection channel and then is discharged out of the test platform, and the small part of hydrogen returns to the tested hydrogen returning device from the first hydrogen returning channel. The main pressure regulating valve 13 reduces the hydrogen inlet pressure of the hydrogen injection channel to 3-20 bar again; the main-way electromagnetic valve 14 is connected and communicated with the upper computer control system cabinet 8, and the upper computer control system cabinet 8 controls a switch to realize remote control of the supply and stop of hydrogen; the pressure at the hydrogen inlet 31 of the test piece is changed by adjusting the hydrogen injection pressure regulating valve 61, and then the pressure is detected, so that key parameters which influence the hydrogen returning performance such as the hydrogen returning injection ratio, the hydrogen returning pressure, the pressure difference, the temperature and the like are detected in real time when the hydrogen quantity is different.
The test fixture 3 is further provided with a test piece hydrogen return port 34, a second branch pipe 52 is connected between the outlet of the fourth ball valve 21 and the first hydrogen return electromagnetic valve 22, a second hydrogen return electromagnetic valve 23 is connected between the branch port of the second branch pipe 52 and the test piece hydrogen return port 34, and a pressure sensor P1 and a temperature sensor T1 are also arranged beside the test piece hydrogen return port 33.
The test piece hydrogen return port 34 is in butt joint with a second hydrogen return port 904 of the tested hydrogen return device, and a second hydrogen return channel is formed by the bifurcation of the second bifurcation pipe 52, the second hydrogen return electromagnetic valve 23 and the second hydrogen return port 904; the pressure sensor P1 and the temperature sensor T1 beside the test piece hydrogen return port 33 monitor the hydrogen return quantity of the second hydrogen return channel in real time, so that characteristic test analysis in the parallel operation test of the multistage ejectors is realized.
The test fixture 3 is further provided with a test piece hydrogen-water separation port 35, a third hydrogen return electromagnetic valve 24 is connected between the outlet of the fourth ball valve 21 and the test piece hydrogen-water separation port 35, and a pressure sensor P1 and a temperature sensor T1 are also arranged beside the test piece hydrogen-water separation port 35.
The test piece hydrogen-water separation port 35 is in butt joint with a hydrogen-water separation detection port 905 of the tested hydrogen return device, and the outlet of the fourth ball valve 21, the third hydrogen return electromagnetic valve 24 and the test piece hydrogen-water separation port 35 form a hydrogen-water separation channel; the pressure sensor P1 and the temperature sensor T1 are also arranged beside the hydrogen-water separation port 35 of the test piece, and are used for monitoring the air pressure of the hydrogen-water separation channel in real time and detecting the performance of the hydrogen-water separator 93.
The pipeline between the hydrogen inlet port 11 and the manual ball valve 12 is provided with a third branch pipe 53, a branch pressure regulating valve 41 and a third ball valve 42 are sequentially connected between the fork of the third branch pipe 53 and the outlet of the fourth ball valve 21, and a branch pressure gauge P3 is connected between the branch pressure regulating valve 41 and the third ball valve 42. When the hydrogen quantity supply of the first hydrogen return channel and the second hydrogen return channel is insufficient to meet the experimental test requirement, the third ball valve 42 is opened, and hydrogen enters the first hydrogen return channel and the second hydrogen return channel through the second branch pipe 52, so that the purpose of supplementing the hydrogen quantity is achieved, and the branch pressure gauge P3 monitors the supplemented hydrogen quantity in real time.
A third hydrogen mass flowmeter M4 is further disposed beside the third hydrogen return solenoid valve 24, and a third hydrogen mass flowmeter M3 is connected between the second branch pipe 52 and the fourth ball valve 21.
The hydrogen discharging pressure regulating assembly 16 and the hydrogen discharging electromagnetic valve 17 are also connected between the hydrogen outlet 32 of the test piece and the hydrogen discharging needle valve 18, and the first branch pipe 51 is arranged between the hydrogen discharging pressure regulating assembly 16 and the hydrogen discharging electromagnetic valve 17. The hydrogen discharge electromagnetic valve 17 is used for discharging hydrogen in the hydrogen returning device, and the hydrogen discharge electromagnetic valve 17 is connected with the upper computer control system cabinet 8 for communication to realize automatic control; the hydrogen discharge pressure regulating assembly 16 effects regulation of the pressure of the discharged hydrogen.
The above-mentioned hydrogen discharge pressure regulating assembly 16 includes a buffer block 64 and a pressure regulating needle 63 connected between the test piece hydrogen outlet 32 and the hydrogen discharge needle 18, and a flow regulating valve 65 provided beside the outlet of the pressure regulating needle 63. The pressure regulating needle valve 63 and the flow regulating valve 65 can release the pressure of the hydrogen injection channel, so that a stable pressure is formed in the system, and the test is safer.
The two ends of the hydrogen discharging pressure regulating assembly 16 are connected in parallel with a pressure sensor Δp for detecting a pressure difference, and a pressure release valve 66 is also connected between the test piece hydrogen outlet 32 and the hydrogen discharging pressure regulating assembly 16. The pressure sensor delta P detects the pressure difference of the hydrogen before and after the hydrogen discharge pressure regulating assembly 16 and is communicated with the upper computer control system cabinet 8, so that the test is safer.
The first test pipeline 54 and the second test pipeline 55 are connected in parallel between the main solenoid valve 14 and the test piece hydrogen inlet 31, the first test pipeline 54 includes the first ball valve 15, the second test pipeline 55 includes the second ball valve 62 and a pair of valve detection interfaces 36 that are connected, and the hydrogen injection pressure regulating valve 61 is detachably mounted on the valve detection interfaces 36. The second ball valve 62 can be opened and closed to the first ball valve 15 when ordinary detection is required, and the first ball valve 15 can be opened, the second ball valve 62 can be closed and the hydrogen injection pressure regulating valve 61 can be regulated when a hydrogen return matching test is required.
The valve detection interface 36 is arranged on the test fixture 3, when the electric valve 94 of the tested hydrogen returning device needs to be detected, as shown in fig. 3, the hydrogen injection pressure regulating valve 61 can be detached, and the electric valve 94 of the tested hydrogen returning device can be in butt joint with the valve detection interface 36, so that the detection is more flexible and comprehensive.
A main hydrogen pressure gauge P2 is further disposed between the main pressure regulating valve 13 and the main solenoid valve 14, the first test pipe 54 is further connected in series with a first hydrogen mass flow meter M1, and the second test pipe 55 further includes a second hydrogen mass flow meter M2 and a detected hydrogen pressure gauge P4 connected in series between the second ball valve 62 and the valve detection interface 36.
The test platform of the hydrogen return device of the hydrogen fuel cell can simulate various working environments of the hydrogen return device, has comprehensive test functions on the hydrogen return device, has high measurement precision, is convenient to operate, is quick in data processing and detection, and realizes detection, debugging, optimization and product improvement on a hydrogen return system of a fuel cell engine through controllable working temperature, pressure, flow rate and flow rate; and has reliable operation environment and emergency treatment measures.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. The utility model provides a hydrogen fuel cell returns test platform of hydrogen device, including host computer control system cabinet (8) and detection frame (100), detection frame (100) are including being used for advancing hydrogen interface (11) and the play hydrogen interface (19) that are connected with outside hydrogen bottle, and be used for being connected with test fixture (3) of being tested the part, be equipped with test piece on test fixture (3) and advance hydrogen mouth (31) and test piece play hydrogen mouth (32), advance and have connected gradually manual ball valve (12) through the pipeline between hydrogen interface (11) and the test piece advance hydrogen mouth (31), main way air-vent valve (13) and main way solenoid valve (14), be connected with hydrogen discharging needle valve (18) through the pipe connection between test piece play hydrogen mouth (32) and the play hydrogen interface (19), its characterized in that: the test tool (3) is further provided with a main hydrogen return port (33) of the test piece, a first branch pipe (51) is arranged in a pipeline between the hydrogen outlet (32) of the test piece and the hydrogen discharge needle valve (18), a fork of the first branch pipe (51) is connected with an inlet of a fourth ball valve (21), a first hydrogen return electromagnetic valve (22) is connected between an outlet of the fourth ball valve (21) and the main hydrogen return port (33) of the test piece, a hydrogen spraying pressure regulating valve (61) is connected between the main circuit electromagnetic valve (14) and the hydrogen inlet (31) of the test piece, the hydrogen spraying pressure regulating valve (61) is communicated with an upper computer control system cabinet (8), and a pressure sensor P1 and a temperature sensor T1 are arranged beside the hydrogen inlet (31) of the test piece, the hydrogen outlet (32) of the test piece and the main hydrogen return port (33) of the test piece;
The test tool (3) is further provided with a test piece hydrogen return opening (34), a second branch pipe (52) is connected between the outlet of the fourth ball valve (21) and the first hydrogen return electromagnetic valve (22), a second hydrogen return electromagnetic valve (23) is connected between the branch opening of the second branch pipe (52) and the test piece hydrogen return opening (34), and a pressure sensor P1 and a temperature sensor T1 are also arranged beside the test piece hydrogen return opening (34);
The test tool (3) is also provided with a test piece hydrogen-water separation port (35), a third hydrogen return electromagnetic valve (24) is connected between the outlet of the fourth ball valve (21) and the test piece hydrogen-water separation port (35), and a pressure sensor P1 and a temperature sensor T1 are also arranged beside the test piece hydrogen-water separation port (35);
a third bifurcation pipe (53) is arranged in the pipeline between the hydrogen inlet interface (11) and the manual ball valve (12), a branch pressure regulating valve (41) and a third ball valve (42) are sequentially connected between the bifurcation of the third bifurcation pipe (53) and the outlet of the fourth ball valve (21), and a branch pressure gauge P3 is connected between the branch pressure regulating valve (41) and the third ball valve (42);
A third hydrogen mass flowmeter M4 is further arranged beside the third hydrogen return electromagnetic valve (24), and a third hydrogen mass flowmeter M3 is connected between the second bifurcation pipe (52) and the fourth ball valve (21);
a hydrogen discharge pressure regulating assembly (16) and a hydrogen discharge electromagnetic valve (17) are further connected between the hydrogen outlet (32) of the test piece and the hydrogen discharge needle valve (18), and the first bifurcation pipe (51) is arranged between the hydrogen discharge pressure regulating assembly (16) and the hydrogen discharge electromagnetic valve (17);
the hydrogen discharge pressure regulating assembly (16) comprises a buffer block (64) and a pressure regulating needle valve (63) which are connected between the hydrogen outlet (32) of the test piece and the hydrogen discharge needle valve (18), and a flow regulating valve (65) arranged beside the outlet of the pressure regulating needle valve (63);
the two ends of the hydrogen discharging pressure regulating component (16) are connected in parallel with a pressure sensor delta P for detecting pressure difference, and a pressure release valve (66) is further connected between the hydrogen outlet (32) of the test piece and the hydrogen discharging pressure regulating component (16).
2. The test platform for a hydrogen fuel cell hydrogen return device of claim 1, wherein: the hydrogen injection device is characterized in that a first test pipeline (54) and a second test pipeline (55) which are connected in parallel are arranged between the main-path electromagnetic valve (14) and the hydrogen inlet (31) of the test piece, the first test pipeline (54) comprises a first ball valve (15), the second test pipeline (55) comprises a second ball valve (62) and a pair of valve detection interfaces (36) which are connected, and the hydrogen injection pressure regulating valve (61) is detachably arranged on the valve detection interfaces (36).
3. The test platform for a hydrogen fuel cell hydrogen return device of claim 2, wherein: a main-way hydrogen pressure meter P2 is further arranged between the main-way pressure regulating valve (13) and the main-way electromagnetic valve (14), the first test pipeline (54) is further connected with a first hydrogen mass flowmeter M1 in series, and the second test pipeline (55) further comprises a second hydrogen mass flowmeter M2 and a detected hydrogen pressure meter P4 which are connected between the second ball valve (62) and the valve detection interface (36) in series.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011242180.6A CN112255003B (en) | 2020-11-09 | 2020-11-09 | Test platform of hydrogen fuel cell hydrogen return device |
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|---|---|---|---|
| CN202011242180.6A CN112255003B (en) | 2020-11-09 | 2020-11-09 | Test platform of hydrogen fuel cell hydrogen return device |
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| CN112255003A CN112255003A (en) | 2021-01-22 |
| CN112255003B true CN112255003B (en) | 2024-08-16 |
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| CN111578980B (en) * | 2020-05-15 | 2022-11-08 | 一汽解放汽车有限公司 | Multifunctional test bench for fuel cell hydrogen system |
| CN111816898A (en) * | 2020-08-06 | 2020-10-23 | 上海燃锐新能源汽车技术有限公司 | Test system for quick response capability of fuel cell hydrogen supply circulating device |
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