CN215893992U - Hydrogen fuel cell hydrogen circulation ejector performance test system - Google Patents
Hydrogen fuel cell hydrogen circulation ejector performance test system Download PDFInfo
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- CN215893992U CN215893992U CN202122471781.0U CN202122471781U CN215893992U CN 215893992 U CN215893992 U CN 215893992U CN 202122471781 U CN202122471781 U CN 202122471781U CN 215893992 U CN215893992 U CN 215893992U
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Abstract
The utility model discloses a performance test system for a hydrogen circulating ejector of a hydrogen fuel cell, which comprises a tested ejector, a working pipeline connected with the tested ejector, an ejection pipeline and a circulating pipeline, wherein the ejection pipeline comprises a first buffer tank, the inlet of the first buffer tank is communicated with a hydrogen quantitative conveying module, a nitrogen quantitative conveying module and a steam quantitative conveying module, the outlet of the first buffer tank is sequentially connected with a first pressure reducing valve, a heat exchanger, a first stop valve and a first flowmeter through an ejection pipeline, a first nitrogen sensor is arranged on the ejection pipeline, and the outlet of the first flowmeter is communicated with the tested ejector through a first check valve. The utility model realizes the working fluid test of the ejector, the ejection fluid decoupling of multiple gas sources and the hydrogen circulation loop test of the simulation galvanic pile.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a performance test system for a hydrogen circulating ejector of a hydrogen fuel cell.
Background
The ejector concept has long been known and is widely used in various industrial sectors. However, the use of the ejector in the fuel cell system is still more advanced, and most of researches on the performance of the ejector stay in a theoretical stage, or the ejector is put in the fuel cell system for joint adjustment, so that the scheme of testing the ejector alone is less.
Patent document CN 209927167U discloses a fuel cell ejector testing system, which uses a heating and humidifying device to simulate the stack environment and a valve to discharge a certain amount of gas to simulate the consumption of hydrogen in the stack, and there is also a widely existing ejector testing system as shown in fig. 1, in which a working fluid inlet pipeline simulates the gas supply part in the fuel cell system, wherein the pressure and flow rate of hydrogen can be controlled; the injection fluid air inlet pipeline simulates a galvanic pile and a circulating part, wherein the pressure, the flow, the temperature and the humidity of gas can be controlled; the mixed fluid outlet line simulates a discharge section wherein the back pressure of the line can be controlled. The same air source is used for supplying air to the working fluid and the injection fluid, check valves are arranged at multiple positions, and pressure gauges are used for measuring pipeline pressure. The two ejector test systems still have the following defects:
(1) the working pipeline and the injection pipeline use the same gas source, which may cause insufficient flow.
(2) In various schemes for testing the performance of the ejector, the two modes are not combined together either only by a scheme for testing the decoupling of the working fluid and the ejection fluid or a scheme for testing the hydrogen circulation loop of the simulated galvanic pile.
(3) The performance of the ejector when other gases exist cannot be tested by only researching single gas by using the same gas source.
(4) The working fluid only controls flow and pressure, and the influence of the temperature of the working fluid on the performance of the ejector is not studied.
(5) The heating and humidification of the ejector fluid are carried out simultaneously, and the influence of independent factors on the performance of the ejector cannot be researched.
Therefore, the utility model provides a performance test system for a hydrogen circulation ejector of a hydrogen fuel cell, which aims to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a performance test system for a hydrogen circulation ejector of a hydrogen fuel cell, which is used for realizing working fluid test of the ejector, ejection fluid decoupling of multiple gas sources and hydrogen circulation loop test of a simulation galvanic pile.
In order to solve the technical problems, the utility model provides a performance test system of a hydrogen circulating injector of a hydrogen fuel cell, which comprises a tested injector, a working pipeline connected with the tested injector, an injection pipeline and a circulating pipeline, wherein the injection pipeline comprises a first buffer tank, the inlet of the first buffer tank is communicated with a hydrogen quantitative conveying module, a nitrogen quantitative conveying module and a steam quantitative conveying module, the outlet of the first buffer tank is sequentially connected with a first pressure reducing valve, a heat exchanger, a first stop valve and a first flowmeter by using an injection pipeline, the injection pipeline is provided with a first nitrogen sensor, the outlet of the first flowmeter is communicated with the tested injector through a first check valve, the inlet of the first check valve is provided with a first pressure sensor, a first temperature sensor and a first humidity sensor, and the outlet of the first check valve is provided with a second pressure sensor, a second temperature sensor and a first humidity sensor, A second temperature sensor and a second humidity sensor.
Further, the working pipeline includes the second buffer tank, the second buffer tank is connected with first hydrogen bottle through the second relief pressure valve, just the export of second buffer tank utilizes the working pipeline to connect gradually first electromagnetism proportional valve and second flowmeter, it is provided with heat exchanger to lie in between first electromagnetism proportional valve and the second flowmeter on the working pipeline, the export of second flowmeter is connected with the ejector that is surveyed, just the export of second flowmeter is provided with third pressure sensor and third temperature sensor.
Further, the circulating line includes series connection's third buffer tank and fourth buffer tank, the third buffer tank also is connected with nitrogen gas ration transport module and steam ration transport module respectively, just the third buffer tank is connected with surveyed the ejector through the third flowmeter, the third flowmeter export is provided with fourth pressure sensor, fourth temperature sensor and third humidity transducer, the fourth buffer tank has connected gradually heat exchanger and second stop valve through the circulating line, the second stop valve is connected with first check valve, the position is connected with backpressure adjusting device between fourth buffer tank and the heat exchanger on the circulating line, backpressure adjusting device is connected with the third stop valve through the fourth flowmeter, the position is provided with second nitrogen gas sensor on the circulating line between fourth buffer tank and backpressure adjusting device, A fifth pressure sensor, a fifth temperature sensor, and a fifth humidity sensor.
Further, the module is carried to hydrogen gas ration includes second hydrogen gas bottle, second hydrogen gas bottle has connected gradually second relief pressure valve, second electromagnetism proportional valve, fifth flowmeter and second check valve through defeated hydrogen pipeline, nitrogen gas ration transport module includes the nitrogen cylinder, the nitrogen cylinder has connected gradually third relief pressure valve, third electromagnetism proportional valve, sixth flowmeter and third check valve through defeated nitrogen pipeline, steam ration transport module includes the water tank, the water tank has connected gradually water pump, steam generator, fourth relief pressure valve, fourth electromagnetism proportional valve, seventh flowmeter and fourth check valve through steam conduit, all be provided with sixth pressure sensor and sixth temperature sensor on defeated hydrogen pipeline, defeated nitrogen pipeline and the steam conduit.
Furthermore, a seventh pressure sensor, a seventh temperature sensor and a fourth humidity sensor are arranged in the first buffer tank.
Furthermore, an eighth pressure sensor and an eighth temperature sensor are arranged in the second buffer tank.
Compared with the prior art, the utility model at least has the following beneficial effects:
(1) the working pipeline, the injection pipeline and the circulating pipeline are combined, so that the decoupling test of the working fluid and the injection fluid of the injector can be realized, the hydrogen circulation loop test of a simulation galvanic pile of the injector can be realized, and the working pipeline and the injection pipeline are not interfered with each other, so that the condition of insufficient flow is effectively avoided;
(2) the ejector pipeline and the circulating pipeline adopt a multi-gas-source design, so that the multi-gas-source performance test of the ejector can be realized;
(3) the device can control the temperature of the working fluid in the process of testing the working fluid, so as to realize the influence of the testing temperature on the performance of the ejector, and meanwhile, the humidification and the heating of the ejector fluid can be independently realized, so that the influence of a single variable on the performance of the ejector can be conveniently researched.
Drawings
FIG. 1 is a schematic diagram of an injector performance testing system of the prior art;
FIG. 2 is a schematic diagram of the overall structure of a hydrogen circulation ejector performance testing system of a hydrogen fuel cell according to the utility model;
FIG. 3 is a schematic view of a working circuit according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an injection circuit according to an embodiment of the present invention;
FIG. 5 is a schematic view of a circulation circuit according to an embodiment of the present invention.
Detailed Description
The hydrogen fuel cell hydrogen cycling eductor performance testing system of the present invention will now be described in greater detail with reference to the schematic drawings, wherein preferred embodiments of the present invention are shown, it being understood that one skilled in the art could modify the utility model described herein while still achieving the advantageous results of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the utility model.
The utility model is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As shown in fig. 2, the embodiment of the utility model provides a performance testing system for a hydrogen circulating injector of a hydrogen fuel cell, which includes a tested injector 1, a working pipeline connected with the tested injector 1, an injection pipeline and a circulating pipeline, wherein the working pipeline is used for testing working fluid of the tested injector 1, the injection pipeline is used for testing injection fluid of the tested injector 1, the circulating pipeline is used for testing a hydrogen circulating loop of an analog cell stack of the tested injector 1, different pipeline gas sources are adopted for testing the working fluid and the injection fluid of the tested injector 1, so that the occurrence of insufficient gas flow is effectively avoided, the injection pipeline includes a first buffer tank 2, an inlet of the first buffer tank 2 is communicated with a hydrogen quantitative conveying module, a nitrogen quantitative conveying module and a steam quantitative conveying module, the hydrogen quantitative conveying module is used for conveying hydrogen to the first buffer tank 2 in a metered manner, the nitrogen quantitative conveying module is used for quantitatively conveying nitrogen to the first buffer tank 2, the steam quantitative conveying module is used for quantitatively conveying steam to the first buffer tank 2, the performance test of multiple gases on the tested ejector 1 is realized by the design of multiple gas sources, the outlet of the first buffer tank 2 is sequentially connected with a first pressure reducing valve 3, a heat exchanger 4, a first stop valve 5 and a first flowmeter 6 by an ejector pipeline, the heat exchanger 4 can heat the gas in the first buffer tank 2 to test the influence of different temperatures on the performance of the tested ejector 1, the ejector pipeline is provided with a first nitrogen sensor 7, the outlet of the first flowmeter 6 is communicated with the tested ejector 1 through a first check valve 8, the inlet of the first check valve 8 is provided with a first pressure sensor 9, a first temperature sensor 10 and a first humidity sensor 11, just 8 export of first check valve is provided with second pressure sensor 12, second temperature sensor 13 and second humidity transducer 14, the setting of first check valve 8, avoid the higher working fluid of pressure to get into and draw the injection pipeline, first pressure sensor 9, the setting of first temperature sensor 10 and first humidity transducer 11, the realization is to drawing of getting into first check valve 8 and is penetrated the air current and carry out atmospheric pressure, the measurement of temperature and humidity, second pressure sensor 12, the setting of second temperature sensor 13 and second humidity transducer 14, the realization is penetrated the air current and is carried out atmospheric pressure, the measurement of temperature and humidity to the ejection of first check valve 8 of discharging.
The working pipeline includes second buffer tank 15, second buffer tank 15 is connected with first hydrogen bottle 17 through second relief pressure valve 16, just second buffer tank 15 exports and utilizes the working pipeline to connect gradually first electromagnetism proportional valve 18 and second flowmeter 19, it is provided with heat exchanger 4 to lie in between first electromagnetism proportional valve 18 and the second flowmeter 19 on the working pipeline, 19 exports of second flowmeter and is connected with the ejector 1 that is surveyed, just 19 exports of second flowmeter are provided with third pressure sensor 20 and third temperature sensor 21. In the present embodiment, the second pressure reducing valve 16 is provided to pre-reduce the pressure of the working air flow, the first electromagnetic proportional valve 18 is provided to quantitatively feed the working air flow, the heat exchanger 4 can heat the working air flow, and the second flow meter 19, the third pressure sensor 20, and the third temperature sensor 21 are provided to detect and feed back whether or not the pressure, the flow rate, and the temperature in the working line reach target values. According to the values measured by the second flowmeter 19 and the third pressure sensor 20, the opening degree of the first electromagnetic proportional valve 18 is controlled through pid calculation, and then the pressure and the flow rate of the working air flow are controlled, and the temperature of the working air flow can be adjusted through controlling the heat exchanger 4 through pid calculation by the third temperature sensor 21.
The circulation pipeline comprises a third buffer tank 22 and a fourth buffer tank 23 which are connected in series, the third buffer tank 22 is also connected with a nitrogen quantitative conveying module and a steam quantitative conveying module respectively, the third buffer tank 22 is connected with a tested ejector 1 through a third flowmeter 24, an outlet of the third flowmeter 24 is provided with a fourth pressure sensor 25, a fourth temperature sensor 26 and a third humidity sensor 27, the fourth buffer tank 23 is sequentially connected with a heat exchanger 4 and a second stop valve 28 through a circulation pipeline, the second stop valve 28 is connected with a first check valve 8, a back pressure adjusting device 29 is connected between the fourth buffer tank 23 and the heat exchanger 4 on the circulation pipeline, the back pressure adjusting device 29 is connected with a third stop valve 31 through a fourth flowmeter 30, and a second nitrogen sensor 32, a second steam sensor 32, a third steam sensor and a steam quantitative conveying module are arranged between the fourth buffer tank 23 and the back pressure adjusting device 29 on the circulation pipeline, A fifth pressure sensor 33, a fifth temperature sensor 34 and a fifth humidity sensor 59. In the embodiment, a nitrogen quantitative conveying module, a steam quantitative conveying module and a heat exchanger 4 are added in the circulating pipeline, so that hydrogen circulating loop tests of simulated galvanic piles of air sources with different components, temperatures and humidity are realized.
The hydrogen quantitative conveying module comprises a second hydrogen bottle 35, the second hydrogen bottle 35 is sequentially connected with a second pressure reducing valve 36, a second electromagnetic proportional valve 37, a fifth flow meter 38 and a second check valve 39 through a hydrogen conveying pipeline, the nitrogen quantitative conveying module comprises a nitrogen bottle 40, the nitrogen bottle is sequentially connected with a third pressure reducing valve 41, a third electromagnetic proportional valve 42, a sixth flow meter 43 and a third check valve 44 through the hydrogen conveying pipeline, the steam quantitative conveying module comprises a water tank 45, the water tank 45 is sequentially connected with a water pump 46, a steam generator 47, a fourth pressure reducing valve 48, a fourth electromagnetic proportional valve 49, a seventh flow meter 50 and a fourth check valve 51 through a steam pipeline, and a sixth pressure sensor 52 and a sixth temperature sensor 53 are arranged on the hydrogen conveying pipeline, the nitrogen conveying pipeline and the steam pipeline. In the present embodiment, the fifth flowmeter 38, the sixth flowmeter 43 and the seventh flowmeter 50 can respectively measure the flow rate of the hydrogen, the nitrogen and the steam output by the hydrogen quantitative conveying module, the nitrogen quantitative conveying module and the steam quantitative conveying module, the second electromagnetic proportional valve 37, the third electromagnetic proportional valve 42 and the fourth electromagnetic proportional valve 49 realize the quantitative and accurate control of the hydrogen, the nitrogen and the steam, and the second check valve 39, the third check valve 44 and the fourth check valve 51 are provided to prevent the reverse flow of different gases due to the difference of pressure.
A seventh pressure sensor 54, a seventh temperature sensor 55 and a fourth humidity sensor 56 are arranged in the first buffer tank 2. In the present embodiment, the provision of the seventh pressure sensor 54, the seventh temperature sensor 55, and the fourth humidity sensor 56 enables measurement of the pressure, temperature, and humidity of the mixed gas in the first buffer tank 2.
An eighth pressure sensor 57 and an eighth temperature sensor 58 are provided in the second buffer tank 15. In the present embodiment, the eighth pressure sensor 57 and the eighth temperature sensor 58 are provided to measure the pressure and the temperature of the gas in the second buffer tank 15.
The following examples are provided to illustrate the present invention clearly, and it should be understood that the present invention is not limited to the following examples, and other modifications by conventional means of ordinary skill in the art are within the scope of the present invention.
The embodiment of the utility model provides a use principle of a hydrogen circulation ejector performance test system of a hydrogen fuel cell. The method comprises the following specific steps:
(1) testing the ejector by using a working pipeline: as shown in figure 3, hydrogen flows out of the hydrogen cylinder and enters a buffer tank BT1 through a pressure reducing valve PRV1, the buffer tank BT1 has the function of stabilizing the pressure and the flow rate of the hydrogen, the outlet of the buffer tank BT1 adopts an electromagnetic proportional valve PV1 to control the pressure and the flow rate, a heat exchanger HE1 is arranged behind the outlet of the buffer tank BT1, and the hydrogen in a working pipeline is indirectly heated in the heat exchanger HE 1. The pressure and the flow of the pipeline are controlled by an electromagnetic proportional valve PV1, and the working pipeline is finally provided with a flowmeter F1, a temperature sensor T2 and a pressure sensor P2, so that whether the pressure, the flow and the temperature in the working pipeline reach target values or not can be detected and fed back. According to the values measured by the flow meter F1 and the pressure sensor P2, the opening degree of the electromagnetic proportional valve PV1 is controlled through pid calculation, the pressure and the flow of the hydrogen are controlled, and the temperature of the hydrogen can be adjusted by controlling the heat exchanger HE1 through pid calculation by the temperature sensor T2.
(2) The ejector is tested by utilizing an ejection pipeline: as shown in fig. 4, adopt three kinds of air supplies in the injection pipeline, be hydrogen gas circuit, nitrogen gas circuit and steam way respectively, three kinds of air supplies mix according to the proportion, can realize carrying out the injection test of different air supplies to the ejector, the ratio mode of hydrogen, nitrogen gas, vapor is specifically as follows:
firstly introducing hydrogen into a buffer tank BT2, adjusting a pressure reducing valve PRV7 to enable the pressure behind the valve to be a set value, then sequentially introducing nitrogen and water vapor into the buffer tank BT2, comparing the measured values of a nitrogen sensor and a humidity sensor H3 on a mixing pipeline with the set mixing ratio, adjusting an electromagnetic proportional valve PV3 and an electromagnetic proportional valve PV4 on the nitrogen and water vapor pipelines through pid calculation, further controlling the ratio of the nitrogen and the water vapor, finally calculating the pressure to be achieved by a hydrogen pipeline under the current flow and the set mixing ratio according to a flow meter F6 on the mixing pipeline, comparing the calculated value with the actually measured pressure value (a pressure sensor P3), and controlling the opening degree of the electromagnetic proportional valve PV2 on the hydrogen pipeline through pid calculation to achieve the purpose of adjusting the ratio of the hydrogen in the mixed gas.
The mixed gas from the buffer tank BT2 passes through a heat exchanger HE1, and the temperature of the mixed gas can be controlled by pid calculation through a temperature sensor T8 matched with the heat exchanger HE 1; the drainage test of different temperature gases is carried out on the ejector.
(3) And (3) performing hydrogen circulation loop test of the simulated galvanic pile on the ejector by utilizing a circulation pipeline: as shown in fig. 5, the hydrogen circulation loop test of the simulated stack is performed by first opening the stop valve GV3, adjusting the backpressure regulator, controlling to discharge a certain amount of hydrogen according to the flow meter F7 to simulate the hydrogen consumption of the stack under the current working condition when pure hydrogen circulation is used; when the mixed gas is used for simulating gas states with different proportions in the galvanic pile, the back pressure adjusting device is adjusted to keep a certain back pressure according to the pressure sensor P12, the consumption of hydrogen in the galvanic pile is simulated, then the measured values of the nitrogen sensor and the humidity sensor H5 are compared with the set mixing proportion, the electromagnetic proportional valve PV5 and the electromagnetic proportional valve PV6 on a nitrogen and water vapor pipeline are adjusted through pid operation, the proportion of nitrogen and water vapor is further controlled, when the proportion of nitrogen and water vapor reaches the set value, the proportion of hydrogen naturally reaches the required proportion, and at the moment, the amount of hydrogen discharged through the stop valve GV3 is the hydrogen consumption amount in the galvanic pile.
In summary, compared with the prior art, the utility model has the following advantages:
(1) the working pipeline, the injection pipeline and the circulating pipeline are combined, so that the decoupling test of the working fluid and the injection fluid of the injector can be realized, the hydrogen circulation loop test of a simulation galvanic pile of the injector can be realized, and the working pipeline and the injection pipeline are not interfered with each other, so that the condition of insufficient flow is effectively avoided;
(2) the ejector pipeline and the circulating pipeline adopt a multi-gas-source design, so that the multi-gas-source performance test of the ejector can be realized;
(3) the device can control the temperature of the working fluid in the process of testing the working fluid, so as to realize the influence of the testing temperature on the performance of the ejector, and meanwhile, the humidification and the heating of the ejector fluid can be independently realized, so that the influence of a single variable on the performance of the ejector can be conveniently researched.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The hydrogen fuel cell hydrogen circulation ejector performance test system is characterized by comprising a measured ejector, a working pipeline connected with the measured ejector, an ejection pipeline and a circulation pipeline, wherein the ejection pipeline comprises a first buffer tank, an inlet of the first buffer tank is communicated with a hydrogen quantitative conveying module, a nitrogen quantitative conveying module and a steam quantitative conveying module, an outlet of the first buffer tank is sequentially connected with a first pressure reducing valve, a heat exchanger, a first stop valve and a first flowmeter through an ejection pipeline, a first nitrogen sensor is arranged on the ejection pipeline, an outlet of the first flowmeter is communicated with the measured ejector through a first check valve, an inlet of the first check valve is provided with a first pressure sensor, a first temperature sensor and a first humidity sensor, and a second pressure sensor, a second humidity sensor and a third pressure sensor are arranged at an outlet of the first check valve, A second temperature sensor and a second humidity sensor.
2. The system for testing the performance of the hydrogen circulating ejector of the hydrogen fuel cell according to claim 1, wherein the working pipeline comprises a second buffer tank, the second buffer tank is connected with a first hydrogen bottle through a second pressure reducing valve, an outlet of the second buffer tank is sequentially connected with a first electromagnetic proportional valve and a second flow meter through the working pipeline, a heat exchanger is arranged between the first electromagnetic proportional valve and the second flow meter on the working pipeline, an outlet of the second flow meter is connected with the ejector to be tested, and an outlet of the second flow meter is provided with a third pressure sensor and a third temperature sensor.
3. The hydrogen fuel cell hydrogen circulation ejector performance test system of claim 1, wherein the circulation pipeline comprises a third buffer tank and a fourth buffer tank which are connected in series, the third buffer tank is also connected with a nitrogen quantitative conveying module and a steam quantitative conveying module respectively, the third buffer tank is connected with the ejector to be tested through a third flow meter, a fourth pressure sensor, a fourth temperature sensor and a third humidity sensor are arranged at the outlet of the third flow meter, a heat exchanger and a second stop valve are sequentially connected with the fourth buffer tank through the circulation pipeline, the second stop valve is connected with a first check valve, a back pressure adjusting device is connected between the fourth buffer tank and the heat exchanger on the circulation pipeline, the back pressure adjusting device is connected with a third stop valve through the fourth flow meter, and a second nitrogen sensor is arranged between the fourth buffer tank and the back pressure adjusting device on the circulation pipeline A fifth pressure sensor, a fifth temperature sensor, and a fifth humidity sensor.
4. The hydrogen fuel cell hydrogen circulation ejector performance testing system of claim 1, the hydrogen quantitative conveying module comprises a second hydrogen cylinder which is sequentially connected with a second reducing valve, a second electromagnetic proportional valve, a fifth flowmeter and a second check valve through a hydrogen conveying pipeline, the nitrogen quantitative conveying module comprises a nitrogen bottle which is sequentially connected with a third pressure reducing valve, a third electromagnetic proportional valve, a sixth flowmeter and a third check valve through a nitrogen conveying pipeline, the steam quantitative conveying module comprises a water tank, the water tank is sequentially connected with a water pump, a steam generator, a fourth pressure reducing valve, a fourth electromagnetic proportional valve, a seventh flowmeter and a fourth check valve through a steam pipeline, and the hydrogen pipeline, the nitrogen pipeline and the steam pipeline are respectively provided with a sixth pressure sensor and a sixth temperature sensor.
5. The system for testing the performance of the hydrogen circulating ejector of the hydrogen fuel cell as claimed in claim 1, wherein a seventh pressure sensor, a seventh temperature sensor and a fourth humidity sensor are arranged in the first buffer tank.
6. The system for testing the performance of the hydrogen circulating ejector of the hydrogen fuel cell as claimed in claim 2, wherein an eighth pressure sensor and an eighth temperature sensor are arranged in the second buffer tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122250033 | 2021-09-16 | ||
| CN202122250033X | 2021-09-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636541A (en) * | 2022-05-17 | 2022-06-17 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Hot gas source injection system capable of being assembled rapidly in modularized mode |
| NL2031310A (en) * | 2022-03-16 | 2023-09-21 | China Automotive Tech & Res Ct | Ejector test device for hydrogen fuel cell engine and test method |
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2021
- 2021-10-14 CN CN202122471781.0U patent/CN215893992U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2031310A (en) * | 2022-03-16 | 2023-09-21 | China Automotive Tech & Res Ct | Ejector test device for hydrogen fuel cell engine and test method |
| CN114636541A (en) * | 2022-05-17 | 2022-06-17 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Hot gas source injection system capable of being assembled rapidly in modularized mode |
| CN114636541B (en) * | 2022-05-17 | 2022-07-22 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Hot gas source injection system capable of being assembled rapidly in modularized mode |
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