CN213936270U - Emptying device for fuel cell automobile test - Google Patents
Emptying device for fuel cell automobile test Download PDFInfo
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- CN213936270U CN213936270U CN202023195310.3U CN202023195310U CN213936270U CN 213936270 U CN213936270 U CN 213936270U CN 202023195310 U CN202023195310 U CN 202023195310U CN 213936270 U CN213936270 U CN 213936270U
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- 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
Abstract
The utility model discloses an emptying devices for fuel cell car test system, include: first evacuation system and second evacuation system, fuel cell car test system includes TPRD device and relief pressure valve, install the relief valve on the relief pressure valve, first evacuation system with the gas vent of TPRD device links to each other, second evacuation system with the relief valve links to each other, first evacuation system include first evacuation pipe, install in first evacuation check valve and first evacuation stop valve on the first evacuation pipe, second evacuation system include second evacuation pipe, install in second evacuation check valve and second evacuation stop valve on the second evacuation pipe. Compared with the prior art, the utility model discloses the security is high, data transmission is timely, can be when carrying out analogue test the accurate control simulation condition, guarantees the true running state of simulation vehicle.
Description
Technical Field
The utility model relates to a gas evacuation technical field especially relates to an emptying devices for fuel cell car is experimental.
Background
At present, fuel oil is generally used as power of automobiles, and due to the fact that petroleum resources are limited and the influence of exhaust emission on atmospheric pollution is large, people begin to search for new alternative energy. As a substitute of automobile fuel, hydrogen can be used as fuel for automobiles, and the emission of the hydrogen and oxygen after reaction is mainly water, so that the hydrogen-containing automobile fuel has the advantages of cleanness and no pollution. Therefore, the development of fuel cell vehicles has become a focus and direction of research and development for various automobile manufacturers.
When the fuel cell system is tested, the TPRD device automatically acts under the condition of overpressure or overtemperature, and the fuel gas in the vehicle-mounted high-pressure container is discharged, so that the purpose of pressure relief is achieved, and the safety of the test is ensured. After the gas in the vehicle-mounted high-pressure container is decompressed by the decompression valve, the situation that the pressure exceeds the limit can also occur, the safety valve is triggered to jump at the moment, the gas in the decompression valve is discharged, the effect of pressure relief is achieved, and the safety of the test is ensured. However, the gas discharged from the TPRD device or the pressure reducing valve surrounds the vehicle body and fills the whole test room, and due to the fact that the discharged gas is high in flow rate, high in friction, high in temperature rise, high in generated static electricity and extremely low in ignition energy, the discharged gas is extremely easy to form flame around the test vehicle, even dangerous situations such as explosion and the like occur, damage to the vehicle and the test room is caused, and safety of test personnel is threatened.
In order to avoid this, it is common to place test equipment such as an on-board high-pressure vessel in a safe location outside the test room, separately from the vehicle, and connect it to the stack system through an extended pipe to supply gas. When the method is adopted, although the safety of the test can be effectively improved, if a fire disaster occurs outdoors, the control is still difficult; in addition, when test equipment such as a vehicle-mounted high-pressure container is placed outside a test room, the lengths of a pipeline and a wire harness between the vehicle-mounted high-pressure container and a galvanic pile system are increased, so that the pressure difference is increased, the delay or distortion of a transmission signal is caused, and the accuracy of a simulation test is influenced. In the other method, a vehicle-mounted high-pressure container, a TPRD device and a pressure reducing valve device are omitted, and a fuel gas source is introduced into a test room through a special pipeline and is directly connected with a galvanic pile system to supply fuel gas. However, in the vehicle test process, the running conditions such as the temperature and the pressure of a gas system and the matching condition of the gas system and a galvanic pile system, which cannot be effectively controlled after the gas system devices such as a vehicle-mounted high-pressure container and a TPRD device, are reduced, so that the accuracy of the simulation test is influenced. Therefore, a technical problem to be solved by those skilled in the art is to provide a device which has high safety, timely data transmission, and can accurately control simulation conditions during a simulation test so as to ensure that a real running state of a simulated vehicle is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an emptying devices for fuel cell car is experimental, aim at solving foretell technical problem.
In order to achieve the above object, the utility model provides a following scheme:
the utility model discloses an emptying devices for fuel cell car is experimental, include: first evacuation system and second evacuation system, fuel cell car test system includes TPRD device and relief pressure valve, install the relief valve on the relief pressure valve, first evacuation system with the gas vent of TPRD device links to each other, second evacuation system with the relief valve links to each other, first evacuation system include first evacuation pipe, install in first evacuation check valve and first evacuation stop valve on the first evacuation pipe, second evacuation system include second evacuation pipe, install in second evacuation check valve and second evacuation stop valve on the second evacuation pipe.
Preferably, still include gas supply system, gas supply system be used for respectively to first evacuation pipe with the second evacuation pipe provides working gas, working gas is the shielding gas.
Preferably, the gas detector is mounted on the first exhaust pipe.
Preferably, the fire protection device further comprises a first fire arrestor and a second fire arrestor, wherein the first fire arrestor is installed on the first emptying pipe, the second fire arrestor is installed on the second emptying pipe, and the first fire arrestor and the second fire arrestor are both arranged outside the roof of the laboratory.
Preferably, the first flame arrester, the first evacuation stop valve, the first evacuation check valve, and the gas detector are sequentially installed in a direction in which the first evacuation pipe leads to the TPRD device, and the second flame arrester, the second evacuation stop valve, and the second evacuation check valve are sequentially installed in a direction in which the second evacuation pipe leads to the pressure reducing valve.
Preferably, still include the maintenance pipeline, install the maintenance valve on the relief pressure valve, the one end of maintenance pipeline with the maintenance valve links to each other, the other end of maintenance pipeline with the input of second evacuation check valve links to each other, install the maintenance solenoid valve on the maintenance pipeline.
Preferably, the gas supply system comprises a first gas supply pipeline, a second gas supply pipeline, a third gas supply pipeline, a gas storage device, a gas supply pipeline stop valve, a flow-limiting orifice plate, a first one-way valve and a second one-way valve, the stop valve and the orifice plate are arranged on the first air supply pipeline, the first one-way valve is arranged on the second air supply pipeline, the second one-way valve is arranged on the third gas supply pipeline, the first end of the first gas supply pipeline is connected with the gas storage device, the first end of the second gas supply duct and the first end of the third gas supply duct are both connected to the second end of the first gas supply duct, the second end of the second gas supply pipeline is connected with the first emptying pipe and is positioned between the first emptying one-way valve and the gas detector, and the second end of the third gas supply pipeline is connected with the second emptying pipe and is positioned between the second emptying one-way valve and the safety valve.
Preferably, the fuel gas used in the fuel cell automobile test system is hydrogen gas.
Preferably, the shielding gas is nitrogen.
The utility model discloses for prior art gain following technological effect:
the utility model provides a pair of an emptying devices for fuel cell car is experimental includes first emptying system and second emptying system, and fuel cell car test system includes TPRD device and relief pressure valve. The flow of gas in the first evacuation pipe can be controlled through the first evacuation stop valve, and the gas flow direction can be guaranteed to be single flow direction through the first check valve, so that the gas is effectively prevented from flowing reversely. The flow of gas in the second evacuation pipe can be controlled through the second evacuation stop valve, and the gas flow direction can be guaranteed to be single flow direction through the second check valve, and the gas is effectively prevented from flowing reversely. The method has the advantages that extra wire harnesses are not needed to be added for data transmission, data transmission is timely, simulation conditions can be accurately controlled during simulation tests, and the real running state of a simulated vehicle is guaranteed. Through letting in the protective gas in first exhaust pipe and second exhaust pipe, can reduce the density of wherein gas, difficult burning phenomenon that takes place has guaranteed test system's security. Through first spark arrester and the second spark arrester of evacuation pipe export installation to it is placed outside the laboratory roof to it can prevent effectively that the gas in evacuation pipe exit from taking place to ignite the phenomenon and prevent that flame reverse entering pipeline in, has further guaranteed test system's security. Through the maintenance pipeline and the maintenance valve installed on the maintenance pipeline, the maintenance of the test device is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an evacuation device for a fuel cell vehicle test according to the present embodiment;
wherein: 1-a TPRD device; 2-high pressure gas pipeline; 3-a pressure reducing valve; 4, maintaining the electromagnetic valve; 5-vehicle high-pressure container; 6-gas supply pipeline stop valve; 7-a first one-way valve; 8-a second one-way valve; 9-a first evacuation one-way valve; 10-a first emptying stop valve; 11-a second emptying stop valve; 12-a first flame arrestor; 13-a second flame arrestor; 14-a first evacuation pipe; 15-a second evacuated tube; 16-an exhaust port; 17-a safety valve; 18-a service valve; 19-a restriction orifice plate; 20-an electromagnetic valve; 21-a galvanic pile system; 22-low pressure gas pipeline; 23-a second evacuation one-way valve; 24-a roof; 25-gas detector.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the present embodiment provides an evacuation device for a fuel cell vehicle test, including a first evacuation system and a second evacuation system, the fuel cell vehicle test system includes a TPRD device 1 and a pressure reducing valve 3, a safety valve 17 is installed on the pressure reducing valve 3, the first evacuation system is connected to an exhaust port 16 of the TPRD device 1, the second evacuation system is connected to the safety valve 17, the first evacuation system includes a first evacuation pipe 14, a first evacuation check valve 9 and a first evacuation stop valve 10 installed on the first evacuation pipe 14, the second evacuation system includes a second evacuation pipe 15, a second evacuation check valve 23 and a second evacuation stop valve 11 installed on the second evacuation pipe 15. The design pressure of the first evacuation pipe 14 is 70Mpa, and the design pressure of the second evacuation pipe 15 is 3 Mpa. The flow of the gas in the first emptying pipe 14 can be controlled through the first emptying stop valve 10, the flowing direction of the gas can be ensured to be a single flowing direction through the first emptying one-way valve 9, and the gas is effectively prevented from flowing reversely; the flow of gas in the second evacuation pipe 15 can be controlled through the second evacuation stop valve 11, and the gas flow direction can be guaranteed to be single flow direction through the second evacuation check valve 23, so that the gas is effectively prevented from flowing reversely, and the safety of the test system is effectively guaranteed.
In this embodiment, the fuel cell vehicle test system further includes a vehicle-mounted high-pressure vessel 5, an electromagnetic valve 20, a high-pressure gas pipeline 2, a low-pressure gas pipeline 22, and an electric pile system 21, wherein the electromagnetic valve 20 is installed on the TPRD device 1, and the TPRD device 1 is installed on the vehicle-mounted high-pressure vessel 5; the pressure reducing valve 3 is connected with the electromagnetic valve 20 through a high-pressure gas pipeline 2; the stack system 21 is connected with the pressure reducing valve 3 through a low-pressure fuel gas pipeline 22. Carry out the analogue test in-process to the vehicle, fuel cell car test system is in operating condition, when on-vehicle high-pressure vessel 5 is in superpressure or overtemperature condition, TPRD device 1 can automatic action, discharge the gas in the on-vehicle high-pressure vessel 5, the gas in the on-vehicle high-pressure vessel 5 discharges through first evacuation system, can control the flow of gas in the first evacuation pipe 14 through first evacuation stop valve 10, can guarantee through first evacuation check valve 9 that the gas flow direction is single flow direction, effectively prevent that the gas from taking place the refluence and flowing. High-pressure gas that flows out from on-vehicle high-pressure vessel 5 gets into relief pressure valve 3, when relief pressure valve 3 took place the condition that pressure transfinites, can trigger the take-off of relief valve 17 and discharge the gas in the relief pressure valve 3 through second evacuation system, can control the flow of gas in the second evacuation pipe 15 through second evacuation stop valve 11, can guarantee through second evacuation check valve 23 that the gas flow direction is single flow direction, effectively prevents that the gas from taking place the refluence. And the data transmission is carried out without adding an extra wire harness, the data transmission is timely, the simulation conditions can be accurately controlled during the simulation test, and the real running state of the simulated vehicle is ensured.
In order to improve the safety of test system, this embodiment still includes gas supply system, and gas supply system is used for providing working gas to first evacuation pipe 14 and second evacuation pipe 15 respectively, and working gas is the protective gas, through letting in the protective gas in first evacuation pipe 14 and second evacuation pipe 15, can reduce the density of gas in the evacuation pipe, and difficult burning phenomenon takes place, has guaranteed experimental security. In order to monitor the content of the gas in the first exhaust pipe 14 in real time and to determine whether leakage occurs, so as to ensure the safety of the device, the present embodiment further includes a gas detector 25, and the gas detector 25 is installed on the first exhaust pipe 14.
In order to prevent that the phenomenon of igniting takes place and prevent that the reverse entering pipeline of flame is gone into to the gas at evacuation pipe outlet to guarantee experimental safety, this embodiment still includes first spark arrester 12 and second spark arrester 13, and first spark arrester 12 is installed on first evacuation pipe 14, and second spark arrester 13 is installed on second evacuation pipe 15, and first spark arrester 12 and second spark arrester 13 all place outside the roof 24 of laboratory.
In this embodiment, a first flame arrester 12, a first evacuation stop valve 10, a first evacuation check valve 9, and a gas detector 25 are sequentially installed in a direction in which the first evacuation pipe 14 leads to the TPRD device 1, and a second flame arrester 13, a second evacuation stop valve 11, and a second evacuation check valve 23 are sequentially installed in a direction in which the second evacuation pipe 15 leads to the pressure reducing valve 3.
In order to facilitate the maintenance of the test device, the embodiment further comprises a maintenance pipeline, the pressure reducing valve 3 is provided with a maintenance valve 18, one end of the maintenance pipeline is connected with the maintenance valve 18, the other end of the maintenance pipeline is connected with the input end of the second emptying one-way valve 23, and the maintenance pipeline is provided with a maintenance electromagnetic valve 4. When the vehicle is subjected to a simulation test, the maintenance valve 18 is in a closed state, when equipment needs to be maintained, the test simulation system is closed, the door of the maintenance valve 18 is opened, and the test device is maintained after gas in the system is discharged through the second emptying pipe 15.
In this embodiment, the gas supply system includes a first gas supply pipeline, a second gas supply pipeline, a third gas supply pipeline, and a gas storage device, the gas supply pipeline stop valve 6, the restriction orifice plate 19, first check valve 7 and second check valve 8, gas supply pipeline stop valve 6 and restriction orifice plate 19 are installed on first gas supply pipeline, first check valve 7 is installed on the second gas supply pipeline, second check valve 8 is installed on the third gas supply pipeline, the first end of first gas supply pipeline links to each other with the gas storage device, the first end of second gas supply pipeline and the first end of third gas supply pipeline all link to each other with the second end of first gas supply pipeline, the second end of second gas supply pipeline links to each other and is located between first evacuation check valve 9 and the gas detector 25 with first evacuation pipe 14, the second end of third gas supply pipeline links to each other and is located between second evacuation check valve 23 and the relief valve 17 with second evacuation pipe 15.
There are many kinds of gas that can be used in the fuel cell vehicle test system, and those skilled in the art can select the gas according to needs. Further, the shielding gas is preferably nitrogen.
Before the vehicle is tested, the residual hydrogen in the first evacuation pipe 14 and the second evacuation pipe 15 is replaced by the gas supply system, and the first evacuation pipe and the second evacuation pipe are filled with nitrogen. The specific operation is as follows:
1. the first evacuation stop valve 10 is closed, and the second evacuation stop valve 11 is closed.
2. The gas supply line cut-off valve 6 was opened to fill the first and second evacuation pipes 14 and 15 with nitrogen gas and to make the pressure in the pipes 0.8 Mpa.
3. The gas supply line shut-off valve 6 was closed and held for 1 minute.
4. Opening the first emptying stop valve 10, and closing the first emptying stop valve 10 after the gas in the first emptying pipe 14 is exhausted;
and opening the second emptying stop valve 11 and the maintenance electromagnetic valve 4, and closing the second emptying stop valve 11 after the gas in the second emptying pipe 15 is exhausted.
5. Repeating the steps for 2-4 times and 6 times.
6. The method comprises the steps of opening a gas supply pipeline stop valve 6, opening a first emptying stop valve 10 and a second emptying stop valve 11, closing a maintenance electromagnetic valve 4, opening a maintenance valve 18, enabling nitrogen to flow through a first emptying pipe 14 and a second emptying pipe 15 through a flow limiting pore plate 19 respectively, and ensuring that small-flow nitrogen is always blown in the pipeline.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. An evacuation device for fuel cell vehicle testing, comprising: first evacuation system and second evacuation system, fuel cell car test system includes TPRD device and relief pressure valve, install the relief valve on the relief pressure valve, first evacuation system with the gas vent of TPRD device links to each other, second evacuation system with the relief valve links to each other, first evacuation system include first evacuation pipe, install in first evacuation check valve and first evacuation stop valve on the first evacuation pipe, second evacuation system include second evacuation pipe, install in second evacuation check valve and second evacuation stop valve on the second evacuation pipe.
2. The evacuation device for a fuel cell vehicle test according to claim 1, further comprising a gas supply system for supplying a working gas to the first evacuation pipe and the second evacuation pipe, respectively, the working gas being a shielding gas.
3. The evacuation device for a fuel cell vehicle test of claim 2, further comprising a gas detector mounted on the first evacuation tube.
4. The evacuation device for a fuel cell vehicle test of claim 3, further comprising a first flame arrestor mounted on the first evacuation tube and a second flame arrestor mounted on the second evacuation tube, both the first flame arrestor and the second flame arrestor being positioned outside a roof of a laboratory.
5. The evacuation apparatus for a fuel cell vehicle test as claimed in claim 4, wherein the first flame arrester, the first evacuation stop valve, the first evacuation check valve, and the gas detector are installed in this order in a direction in which the first evacuation pipe leads to the TPRD apparatus, and the second flame arrester, the second evacuation stop valve, and the second evacuation check valve are installed in this order in a direction in which the second evacuation pipe leads to the pressure reducing valve.
6. The emptier for a fuel cell vehicle test according to claim 5, further comprising a maintenance pipe, wherein the pressure reducing valve is provided with a maintenance valve, one end of the maintenance pipe is connected with the maintenance valve, the other end of the maintenance pipe is connected with an input end of the second emptying check valve, and the maintenance pipe is provided with a maintenance solenoid valve.
7. The evacuation device for fuel cell vehicle testing of claim 5, wherein the gas supply system comprises a first gas supply pipeline, a second gas supply pipeline, a third gas supply pipeline, a gas storage device, a gas supply pipeline stop valve, a flow-limiting orifice plate, a first check valve and a second check valve, the gas supply pipeline stop valve and the flow-limiting orifice plate are installed on the first gas supply pipeline, the first check valve is installed on the second gas supply pipeline, the second check valve is installed on the third gas supply pipeline, the first end of the first gas supply pipeline is connected to the gas storage device, the first end of the second gas supply pipeline and the first end of the third gas supply pipeline are both connected to the second end of the first gas supply pipeline, the second end of the second gas supply pipeline is connected to the first evacuation pipe and is located between the first evacuation check valve and the gas detector, and the second end of the third gas supply pipeline is connected with the second emptying pipe and is positioned between the second emptying one-way valve and the safety valve.
8. The evacuation apparatus for a fuel cell vehicle test according to claim 1, wherein the fuel gas used in the fuel cell vehicle test system is hydrogen gas.
9. The evacuation apparatus for a fuel cell vehicle test according to claim 2, wherein the shielding gas is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023195310.3U CN213936270U (en) | 2020-12-28 | 2020-12-28 | Emptying device for fuel cell automobile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023195310.3U CN213936270U (en) | 2020-12-28 | 2020-12-28 | Emptying device for fuel cell automobile test |
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| Publication Number | Publication Date |
|---|---|
| CN213936270U true CN213936270U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023195310.3U Active CN213936270U (en) | 2020-12-28 | 2020-12-28 | Emptying device for fuel cell automobile test |
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|---|---|
| CN (1) | CN213936270U (en) |
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2020
- 2020-12-28 CN CN202023195310.3U patent/CN213936270U/en active Active
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