CN216528976U - Electric pile test system - Google Patents
Electric pile test system Download PDFInfo
- Publication number
- CN216528976U CN216528976U CN202122304639.7U CN202122304639U CN216528976U CN 216528976 U CN216528976 U CN 216528976U CN 202122304639 U CN202122304639 U CN 202122304639U CN 216528976 U CN216528976 U CN 216528976U
- Authority
- CN
- China
- Prior art keywords
- outlet
- communicated
- hydrogen
- pipe
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model discloses a galvanic pile test system which comprises a hydrogen supply pipeline, an air supply pipeline and a cooling circulation pipeline, wherein the hydrogen supply pipeline is provided with a hydrogen supply port, a hydrogen outlet, a hydrogen return port and a tail hydrogen outlet, the hydrogen supply port is communicated with an air outlet of a hydrogen tank, the hydrogen outlet is communicated with a hydrogen inlet of a galvanic pile, and the hydrogen return port is communicated with a hydrogen outlet of the galvanic pile; the air supply pipeline comprises an air supply port, an air outlet, an air return port and an air tail gas outlet, the air supply port is communicated with an air outlet of the air compressor, the air outlet is used for being communicated with an air inlet of the electric pile, and the air return port is used for being communicated with an air outlet of the electric pile; the cooling circulation pipeline is provided with a water outlet and a water return port, the water outlet is used for being communicated with a cooling inlet of the galvanic pile, the water return port is used for being communicated with a cooling outlet of the galvanic pile, the adaptability is strong, and the cooling circulation pipeline can be applied to galvanic piles of different specifications.
Description
Technical Field
The utility model belongs to the field of galvanic pile testing, and particularly relates to a galvanic pile testing system.
Background
The fuel cell engine is inevitable trend because characteristics such as self pollution-free, noiselessness, high efficiency replace traditional automobile engine, and after a fuel cell module equipment was accomplished, must pass through the test of simulation whole car system, through changing hydrogen pressure, air compressor machine flow, water pump rotational speed etc. voltage current that the real-time detection produced. The test bench in the existing market is generally high in price, the interior of the test bench is complicated, and parts are not easy to maintain after being damaged.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple and convenient electric pile test system for solving the technical problems.
The technical scheme of the utility model is as follows: a galvanic pile test system comprises a hydrogen supply pipeline, an air supply pipeline and a cooling circulation pipeline, wherein the hydrogen supply pipeline is provided with a hydrogen supply port, a hydrogen outlet, a hydrogen return port and a tail hydrogen outlet, the hydrogen supply port is used for being communicated with an air outlet of a hydrogen tank, the hydrogen outlet is used for being communicated with a hydrogen inlet of a galvanic pile, and the hydrogen return port is used for being communicated with a hydrogen outlet of the galvanic pile; the air supply pipeline comprises an air supply port, an air outlet, an air return port and an air tail gas outlet, the air supply port is communicated with an air outlet of the air compressor, the air outlet is used for being communicated with an air inlet of the electric pile, and the air return port is used for being communicated with an air outlet of the electric pile; the cooling circulation pipeline is provided with a water outlet and a water return port, the water outlet is communicated with a cooling inlet of the galvanic pile, and the water return port is communicated with a cooling outlet of the galvanic pile.
Preferably, the hydrogen supply pipeline comprises a gas-liquid separator and two first-stage tees, wherein two interfaces of one of the first-stage tees are correspondingly communicated with two interfaces of the other first-stage tee one by one, a proportion regulating valve is arranged at the communicated position respectively, the rest interface of one of the first-stage tees is communicated with a first-stage pipe, the other end of the first-stage pipe is the hydrogen supply port, and a first-stage pressure reducing valve, a second-stage pressure reducing valve, a hydrogen inlet valve and a first-stage pressure sensor are sequentially arranged on the first-stage pipe according to the flowing direction of hydrogen; the rest interface of the other tee joint I is communicated with a second pipe, the other end of the second pipe is a hydrogen outlet, a hydrogen flowmeter, an ejector, a third tee joint I, a first temperature sensor and a second pressure sensor are sequentially arranged on the second pipe along the flowing direction of hydrogen, and the ejector is also provided with a bypass interface; the rest interface of the third tee joint is communicated with the fourth tee joint, a safety valve is arranged at the communication position of the third tee joint and the fourth tee joint, the inlet of the gas-liquid separator, the outlet of the gas-liquid separator and the water outlet are communicated, the inlet of the gas-liquid separator is a hydrogen return port, the outlet of the gas-liquid separator is communicated with the bypass interface of the ejector, a third pressure sensor is arranged at the communication position of the gas-liquid separator and the bypass interface of the ejector, the water outlet of the gas-liquid separator is communicated with the other interface of the fourth tee joint, a self-heating valve is arranged at the communication position, and the rest interface of the fourth tee joint is a tail hydrogen outlet.
Preferably, the air supply pipeline comprises a third pipe, a fourth pipe and a fifth pipe, an air supply port and an air outlet are respectively arranged at two ends of the third pipe, an intercooler, a humidifier, a second temperature sensor, a first humidity sensor and a fourth pressure sensor are sequentially arranged on the third pipe in the air flowing direction, the humidifier is provided with two bypass interfaces, one end of the fourth pipe is an air return port, the other end of the fourth pipe is communicated with one interface of the fifth tee joint, one bypass interface of the humidifier is communicated with the other interface of the fifth tee joint, one interface of the fifth pipe is communicated with the rest bypass interface of the humidifier, the other end of the fifth pipe is an air tail gas outlet, a sixth tee joint is arranged on the fifth pipe, and a manual valve is arranged on the fifth pipe and positioned between the sixth tee joint and the humidifier, the remaining interface of the sixth tee joint is communicated with the remaining interface of the fifth tee joint, and a second manual valve is arranged between the remaining interface of the sixth tee joint and the remaining interface of the fifth tee joint.
Preferably, an air flow meter and an air filter are arranged at an air inlet of the air compressor.
Preferably, the cooling circulation pipeline comprises a sixth pipe, a seventh pipe, a water tank, a water pump and a temperature regulating assembly, one end of the sixth pipe is communicated with the inside of the water tank, the other end of the sixth pipe is a water return port, a fifth pressure sensor, a third temperature sensor and a conductivity testing sensor are arranged on the sixth pipe, an inlet of the water pump is communicated with the inside of the water tank, an outlet of the water pump is communicated with an inlet of the deionization column, an outlet of the deionization column is communicated with an inlet of the temperature regulating assembly, an outlet of the temperature regulating assembly is communicated with one end of the seventh pipe, the other end of the seventh pipe is a water outlet, and the seventh pipe is provided with the sixth pressure sensor and the fourth temperature sensor.
Preferably, the temperature adjusting assembly comprises a cooler, a heater, a seventh tee joint and an eighth tee joint, an inlet of the cooler and an inlet of the heater are respectively communicated with two interfaces of the seventh tee joint, an outlet of the cooler and an outlet of the heater are respectively communicated with two interfaces of the eighth tee joint, an electronic two-way valve is respectively arranged at an outlet of the cooler and an outlet of the heater, the remaining interface of the seventh tee joint is an inlet of the temperature adjusting assembly, and the remaining interface of the eighth tee joint is an outlet of the temperature adjusting assembly.
Preferably, the hydrogen generator further comprises a nine-way joint, and the tail hydrogen outlet and the air tail gas outlet are respectively communicated with two interfaces of the nine-way joint to converge.
The utility model has the beneficial effects that: the testing system is simple in structure, strong in universality, applicable to testing of the galvanic piles 4 with different specifications, high in intelligence degree, and adaptable to testing of the galvanic piles 4 in different temperature environments (namely testing under cold or hot conditions).
Drawings
FIG. 1 is a schematic diagram of a hydrogen supply line of the galvanic pile test system according to the present invention;
FIG. 2 is a schematic view of an air supply line of the stack testing system according to the present invention;
FIG. 3 is a schematic view of a cooling circulation circuit of the galvanic pile test system according to the present invention;
fig. 4 is a schematic diagram of a box of the galvanic pile test system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "both ends", "one end", "the other end", "horizontal", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specifically stated or limited, the terms "mounted," "disposed," "connected," "communicating," "through," and the like are used in a broad sense, and for example, "communicating" may be either direct communication or communication integrally formed with one another or communication between the two through a pipe. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, the present invention provides a galvanic pile testing system, which includes a hydrogen supply pipeline 1, an air supply pipeline 2 and a cooling circulation pipeline 3, wherein the hydrogen supply pipeline 1 has a hydrogen supply port, a hydrogen outlet, a hydrogen return port and a tail hydrogen outlet, the hydrogen supply port is used for communicating with an air outlet of a hydrogen tank 11, the hydrogen outlet is used for communicating with a hydrogen inlet of a galvanic pile 4, and the hydrogen return port is used for communicating with a hydrogen outlet of the galvanic pile 4; the air supply pipeline 2 comprises an air supply port, an air outlet, an air return port and an air tail gas outlet, the air supply port is communicated with an air outlet of the air compressor 21, the air outlet is used for being communicated with an air inlet of the electric pile 4, and the air return port is used for being communicated with an air outlet of the electric pile 4; the cooling circulation pipeline 3 is provided with a water outlet and a water return port, the water outlet is communicated with a cooling inlet of the galvanic pile 4, and the water return port is communicated with a cooling outlet of the galvanic pile 4.
Preferably, the hydrogen supply pipeline 1 includes a gas-liquid separator 101 and two first-stage tees 102, wherein two interfaces of one first-stage tee 102 are correspondingly communicated with two interfaces of the other first-stage tee 102 one by one, and a proportional control valve 103 is respectively arranged at the communication position, wherein the remaining interface of one first-stage tee 102 is communicated with a first-stage pipe 104, the other end of the first-stage pipe 104 is the hydrogen supply port, and the first-stage pipe 104 is sequentially provided with a first-stage reducing valve 1041, a second-stage reducing valve 1042, a hydrogen inlet valve 1043 and a first-stage pressure sensor 1044 in the flow direction of hydrogen; the other interface of the first tee 102 is communicated with a second pipe 105, the other end of the second pipe 105 is a hydrogen outlet, a hydrogen flow meter 1051, an ejector 1052, a third tee 1053, a first temperature sensor 1054 and a second pressure sensor 1055 are sequentially arranged on the second pipe 105 along the hydrogen flow direction, and the ejector 1052 is also provided with a bypass interface; the remaining interface of the third three-way 1053 is communicated with the fourth three-way 106, and a safety valve 107 is arranged at the communication position of the two (which can release pressure when the air pressure in the second tube is too high to ensure safe operation), the gas-liquid separator 101 has an inlet, an air outlet and a water outlet, the inlet of the gas-liquid separator 101 is a hydrogen return port, the gas outlet of the gas-liquid separator 101 is communicated with the bypass interface of the ejector 1052 (so that the hydrogen which is not completely reacted can continuously flow back into the electric pile through the ejector to fully utilize the hydrogen), a third pressure sensor 108 is arranged at the communication position of the first pressure sensor and the second pressure sensor, the water outlet of the gas-liquid separator 101 is communicated with the other interface of the fourth tee 106, and a self-heating valve 109 (capable of self-heating to avoid freezing of accumulated water in the valve in cold seasons) is arranged at the communication position, and the remaining interface of the fourth tee 106 is a tail hydrogen outlet.
Preferably, the air supply pipeline 2 includes a third pipe 201, a fourth pipe 202 and a fifth pipe 203, two ends of the third pipe 201 are respectively an air supply port and an air outlet, an intercooler 2011, a humidifier 2012, a second temperature sensor 2013, a first humidity sensor 2014 and a fourth pressure sensor 2015 are sequentially arranged on the third pipe 201 in the air flowing direction, the humidifier 2012 has two bypass ports, one end of the fourth pipe 202 is an air return port, the other end of the fourth pipe 202 is communicated with one port of the fifth three-way pipe 204, one bypass port of the humidifier 2012 is communicated with the other port of the fifth three-way pipe 204, one port of the fifth pipe 203 is communicated with the remaining bypass port of the humidifier 2012, the other end of the fifth pipe 203 is an air exhaust outlet, the fifth pipe 203 is provided with the sixth three-way pipe 205, a first manual valve 206 is arranged on the fifth pipe 203 and between the sixth tee 205 and the humidifier 2012, the remaining interface of the sixth tee 205 is communicated with the remaining interface of the fifth tee 204, a second manual valve 207 is arranged between the sixth tee 205 and the fifth tee 204 (the first manual valve or the second manual valve or both of the first manual valve and the second manual valve can be selectively opened to adjust the air pressure and humidity at the outlet of the humidifier), and a fifth temperature sensor 2021 and a seventh pressure sensor 2022 are arranged on the fourth pipe 202.
Preferably, an air flow meter 211 and an air cleaner 212 are provided at an air inlet of the air compressor 21.
Preferably, the cooling circulation pipeline 3 includes a number six pipe 301, a number seven pipe 302, a water tank 303, a water pump 304 and a temperature regulating assembly 305, one end of the number six pipe 301 is communicated with the inside of the water tank 303, the other end of the number six pipe 301 is a water return port, a number five pressure sensor 3011, a number three temperature sensor 3012 and an electrical conductivity test sensor 3013 are arranged on the number six pipe 301, an inlet of the water pump 304 is communicated with the inside of the water tank 303, an outlet of the water pump 304 is communicated with an inlet of the deionization column 306, an outlet of the deionization column 306 is communicated with an inlet of the temperature regulating assembly 305, an outlet of the temperature regulating assembly 305 is communicated with one end of the number seven pipe 302, the other end of the number seven pipe 302 is a water outlet, the number seven pipe 302 is provided with a number six pressure sensor 3021 and a number four temperature sensor 3022, and a cooling liquid (which may be water) is filled in the water tank.
Preferably, the temperature adjustment assembly 305 includes a cooler 3051, a heater 3052, a seven-way 3053 and an eight-way 3054, an inlet of the cooler 3051 and an inlet of the heater 3052 are respectively communicated with two interfaces of the seven-way 3053, an outlet of the cooler 3051 and an outlet of the heater 3052 are respectively communicated with two interfaces of the eight-way 3054, an outlet of the cooler 3051 and an outlet of the heater 3052 are respectively provided with an electronic two-way valve 3055, a remaining interface of the seven-way 3053 is an inlet of the temperature adjustment assembly 305, a remaining interface of the eight-way 3054 is an outlet of the temperature adjustment assembly 305, wherein the heater can be used for heating the cooling liquid to increase the operating temperature of the electric pile in cold seasons, and the cooler is used for cooling the cooling liquid to decrease the operating temperature of the electric pile in hot seasons.
Preferably, the test system further comprises a nine-way joint 5, and the tail hydrogen outlet and the air tail gas outlet are respectively communicated with two interfaces of the nine-way joint 5 to converge (so that the whole stack test system has only one exhaust port, namely the rest interface of the nine-way joint).
As shown in fig. 4, the stack testing system can be integrated in a box 6 having a vertical groove 61 on the front side, and the hydrogen outlet 12, the air outlet 22 and the water outlet 31 are in one set, and the hydrogen return port 13, the air return port 23 and the water return port 32 are in one set, and are respectively disposed on the left and right sides of the groove 61 so as to communicate with the interfaces (the hydrogen inlet, the hydrogen outlet, the air inlet, the air outlet, the cooling inlet and the cooling outlet) of the stack.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The electric pile test system is characterized by comprising a hydrogen supply pipeline, an air supply pipeline and a cooling circulation pipeline, wherein the hydrogen supply pipeline is provided with a hydrogen supply port, a hydrogen outlet, a hydrogen return port and a tail hydrogen outlet, the hydrogen supply port is communicated with an air outlet of a hydrogen tank, the hydrogen outlet is communicated with a hydrogen inlet of an electric pile, and the hydrogen return port is communicated with a hydrogen outlet of the electric pile; the air supply pipeline comprises an air supply port, an air outlet, an air return port and an air tail gas outlet, the air supply port is communicated with an air outlet of the air compressor, the air outlet is used for being communicated with an air inlet of the electric pile, and the air return port is used for being communicated with an air outlet of the electric pile; the cooling circulation pipeline is provided with a water outlet and a water return port, the water outlet is communicated with a cooling inlet of the galvanic pile, and the water return port is communicated with a cooling outlet of the galvanic pile.
2. The pile test system of claim 1, wherein the hydrogen supply pipeline comprises a gas-liquid separator and two first-way joints, wherein two interfaces of one first-way joint are correspondingly communicated with two interfaces of the other first-way joint in a one-to-one manner, and a proportion regulating valve is respectively arranged at the communication position, wherein the remaining interface of one first-way joint is communicated with a first-way pipe, the other end of the first-way pipe is the hydrogen supply port, and the first-way pipe is sequentially provided with a first-stage pressure reducing valve, a second-stage pressure reducing valve, a hydrogen inlet valve and a first pressure sensor in the hydrogen flowing direction; the rest interface of the other tee joint I is communicated with a second pipe, the other end of the second pipe is a hydrogen outlet, a hydrogen flowmeter, an ejector, a third tee joint I, a first temperature sensor and a second pressure sensor are sequentially arranged on the second pipe along the flowing direction of hydrogen, and the ejector is also provided with a bypass interface; the rest interface of the third tee joint is communicated with the fourth tee joint, a safety valve is arranged at the communication position of the third tee joint and the fourth tee joint, the inlet of the gas-liquid separator, the outlet of the gas-liquid separator and the water outlet are communicated, the inlet of the gas-liquid separator is a hydrogen return port, the outlet of the gas-liquid separator is communicated with the bypass interface of the ejector, a third pressure sensor is arranged at the communication position of the gas-liquid separator and the bypass interface of the ejector, the water outlet of the gas-liquid separator is communicated with the other interface of the fourth tee joint, a self-heating valve is arranged at the communication position, and the rest interface of the fourth tee joint is a tail hydrogen outlet.
3. The system for testing the galvanic pile according to claim 1, wherein the air supply pipeline comprises a third pipe, a fourth pipe and a fifth pipe, an air supply port and an air outlet are respectively arranged at two ends of the third pipe, an intercooler, a humidifier, a second temperature sensor, a first humidity sensor and a fourth pressure sensor are sequentially arranged on the third pipe according to the air flow direction, the humidifier is provided with two bypass interfaces, one end of the fourth pipe is an air return port, the other end of the fourth pipe is communicated with one interface of a fifth tee, one bypass interface of the humidifier is communicated with the other interface of the fifth tee, one interface of the fifth pipe is communicated with the remaining bypass interface of the humidifier, the other end of the fifth pipe is an air tail gas outlet, a sixth tee is arranged on the fifth pipe, and a manual valve is arranged on the fifth pipe between the sixth tee and the humidifier, the remaining interface of the sixth tee joint is communicated with the remaining interface of the fifth tee joint, and a second manual valve is arranged between the remaining interface of the sixth tee joint and the remaining interface of the fifth tee joint.
4. The system for testing the galvanic pile according to any one of claims 1 to 3, wherein an air flow meter and an air filter are provided at an air inlet of the air compressor.
5. The system for testing the galvanic pile according to claim 1, wherein the cooling circulation pipeline comprises a sixth pipe, a seventh pipe, a water tank, a water pump and a temperature regulating assembly, one end of the sixth pipe is communicated with the inside of the water tank, the other end of the sixth pipe is a water return port, a fifth pressure sensor, a third temperature sensor and a conductivity testing sensor are arranged on the sixth pipe, an inlet of the water pump is communicated with the inside of the water tank, an outlet of the water pump is communicated with an inlet of a deionization column, an outlet of the deionization column is communicated with an inlet of the temperature regulating assembly, an outlet of the temperature regulating assembly is communicated with one end of the seventh pipe, the other end of the seventh pipe is a water outlet, and the sixth pressure sensor and the fourth temperature sensor are arranged on the seventh pipe.
6. The system for testing the galvanic pile according to claim 5, wherein the temperature adjustment assembly comprises a cooler, a heater, a seven-way joint and an eight-way joint, an inlet of the cooler and an inlet of the heater are respectively communicated with two interfaces of the seven-way joint, an outlet of the cooler and an outlet of the heater are respectively communicated with two interfaces of the eight-way joint, an electronic two-way valve is respectively arranged at an outlet of the cooler and an outlet of the heater, the remaining one interface of the seven-way joint is an inlet of the temperature adjustment assembly, and the remaining one interface of the eight-way joint is an outlet of the temperature adjustment assembly.
7. The system for testing the galvanic pile according to claim 1, 2, 3, 5 or 6, further comprising a nine-way junction, wherein the tail hydrogen outlet and the air tail gas outlet are respectively communicated with two interfaces of the nine-way junction for confluence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122304639.7U CN216528976U (en) | 2021-09-23 | 2021-09-23 | Electric pile test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122304639.7U CN216528976U (en) | 2021-09-23 | 2021-09-23 | Electric pile test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216528976U true CN216528976U (en) | 2022-05-13 |
Family
ID=81521036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122304639.7U Active CN216528976U (en) | 2021-09-23 | 2021-09-23 | Electric pile test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216528976U (en) |
-
2021
- 2021-09-23 CN CN202122304639.7U patent/CN216528976U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113067018A (en) | Fuel cell hydrogen circulation test system | |
| CN112751061B (en) | Fuel cell air circuit testing system and method | |
| CN213457279U (en) | Testing system of fuel cell system | |
| CN114993717A (en) | Performance testing device for fuel cell membrane humidifier | |
| CN211125844U (en) | Simulation device for proton exchange membrane hydrogen fuel cell engine system | |
| CN216528976U (en) | Electric pile test system | |
| CN213750252U (en) | 130kW fuel cell stack test bench | |
| CN214464770U (en) | Air inlet pipeline of air compressor, fuel cell system and vehicle | |
| CN206040905U (en) | Battery for electric vehicle thermal management system | |
| CN114753996A (en) | Water pump test bench and test method | |
| CN214471694U (en) | Ejector performance testing device | |
| CN210040419U (en) | Pile pipeline system for high-power fuel cell | |
| CN108023143A (en) | A kind of pure electric automobile battery heat exchanger integrated module structure | |
| CN110718705A (en) | Hydrogen fuel cell and engine | |
| CN212513659U (en) | Temperature impact test device for high-pressure water heater | |
| CN115257285A (en) | Water route runner plate structure and vehicle | |
| CN202203013U (en) | Common rail pipe of gas engine | |
| CN115107457A (en) | Thermal management system based on multi-way valve and electric device | |
| CN213692127U (en) | Vehicle and battery power system thereof | |
| CN214477576U (en) | Gas-liquid separation efficiency test equipment | |
| CN210108691U (en) | Test platform of hydrogen fuel cell gas supply equipment | |
| CN218316138U (en) | Thermal management system based on multi-way valve and electric device | |
| CN117189647B (en) | Testing device and method for hydrogen circulating pump for hydrogen fuel cell system | |
| CN114320872B (en) | Test system of automotive electronic water pump | |
| CN217062189U (en) | Air inlet temperature control system for fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |