CN214096558U - Hydrogen circulation test device for hydrogen-involved component - Google Patents
Hydrogen circulation test device for hydrogen-involved component Download PDFInfo
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Abstract
The utility model discloses a hydrogen circulation test device for hydrogen-related parts, which comprises a pre-aeration main pipeline and a driving gas pipeline, wherein the pre-aeration main pipeline is sequentially provided with a first filter, a first pressure sensor, a first electromagnetic pneumatic valve, a first manual stop valve, a second pressure sensor and a flowmeter, and is also provided with a first hydrogen booster pump and a second hydrogen booster pump which are connected in parallel; the tail end of the pre-aeration main pipeline is connected with a first interface branch and a second interface branch, the tail end of the first interface branch, the tail end of the second interface branch and a sample to be tested are arranged in the environment box, and the environment box is connected with an air pump and a hydrogen concentration detector. The testing device is also provided with an industrial personal computer and a PLC. The utility model discloses a realized involving hydrogen part hydrogen cycle test including check valve, stop valve and temperature drive pressure bleeder mechanism etc. temperature, the test rate of adjustable test medium hydrogen, but accurate control relief pressure, the test record can be traceed back, the test data is complete and the inquiry is convenient.
Description
Technical Field
The utility model relates to a check valve, stop valve, temperature driving pressure relief device (TPRD) and soft/hard tube etc. are used for wading hydrogen part's hydrogen cycle test technical field, especially one kind is used for wading hydrogen part hydrogen cycle test device.
Background
With the development of hydrogen energy technology, a check valve, a stop valve, a temperature-driven pressure relief device (TPRD) and a soft/hard pipe used in a hydrogen fuel automobile need to perform a hydrogen circulation test. The hydrogen cycle test is used for carrying out durability tests on the hydrogen-related part at different temperatures for the purpose of judging whether the hydrogen-related part meets the requirement of the conventional design on the use times.
For the requirement of the one-way valve, the one-way valve is arranged on a special test device, the air outlet of the valve is closed, and hydrogen is filled into the air inlet of the one-way valve to reach the nominal working pressure in 6 pressurization stepsp. Then the pressure is released from the air inlet of the valve, and the pressure of the air outlet of the one-way valve is less than 0.6 before the next circulationp。The experiment needs to be carried out for 11000 times of circulation at the ambient temperature of minus 40 ℃ and 85 ℃ and normal temperature;
the temperature-driven pressure relief device (TPRD) was mounted on a test-dedicated device, pressurized to a test pressure with hydrogen, and then depressurized to 3 MPa. A total of 11000 cycles were performed at ambient temperature 85 ℃ and 55 ℃ respectively.
For the soft/hard tube, it was mounted on a test-dedicated apparatus, pressurized to a test pressure using low-temperature hydrogen, and then depressurized to 3 MPa. The cycling tests were performed at different ambient temperatures, respectively.
However, hydrogen cycle tests are common, and in order to meet the hydrogen cycle test requirements of different hydrogen-related components, a hydrogen cycle test device meeting various test requirements needs to be designed.
Disclosure of Invention
The utility model aims to solve the technical problem that a be used for wading hydrogen part hydrogen cycle test device is provided, this utility model has realized wading hydrogen part hydrogen cycle test, wading the hydrogen part and can be check valve, stop valve and soft/hard tube etc. adjustable test medium hydrogen's temperature, adjustable test speed, but accurate control relief pressure, the test record can be traceed back, test data is complete and the inquiry is convenient.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a hydrogen circulation test device for hydrogen-related parts comprises a pre-aeration main pipeline 300 and a driving gas pipeline 400, wherein the head end of the pre-aeration main pipeline 300 is connected with a pre-aeration gas source 16 and is sequentially provided with a first filter 6-1, a first pressure sensor 3-1, a first electromagnetic pneumatic valve 2-1, a first manual stop valve 1-1, a second pressure sensor 3-2 and a flowmeter 12, and a first hydrogen booster pump 7-1 and a second hydrogen booster pump 7-2 which are connected in parallel are arranged between the first electromagnetic pneumatic valve 2-1 and the first manual stop valve 1-1; the tail end of the main pre-aeration pipeline 300 is connected with a first interface branch 310 and a second interface branch 320, and a second electromagnetic pneumatic valve 2-2, a heat exchanger 13, a third pressure sensor 3-3 and a first temperature sensor 4-1 are sequentially arranged on the first interface branch 310; a third electromagnetic pneumatic valve 2-3 is arranged on the second interface branch 320; the driving gas pipeline 400 is connected with a driving gas source 17 and comprises a first driving gas branch 410 and a second driving gas branch 420, the first driving gas branch 410 is connected to a driving gas inlet of the first hydrogen booster pump 7-1, a second filter 6-2, a first driving gas regulating valve 5-1 and a first electromagnetic proportional speed regulating valve 8-1 are sequentially arranged on the first driving gas branch 410, the second driving gas branch 420 is connected to a driving gas inlet of the second hydrogen booster pump 7-2, and a third filter 6-3, a second driving gas regulating valve 5-2 and a second electromagnetic proportional speed regulating valve 8-2 are sequentially arranged on the second driving gas branch 420; the testing device further comprises an environment box 600, wherein the tail end of the first interface branch 310, the tail end of the second interface branch 320 and a sample to be tested are arranged in the environment box 600, and the environment box is connected with the air suction pump 14 and the hydrogen concentration detector 15; the testing device is further provided with an industrial personal computer and a PLC, the industrial personal computer is connected with the PLC, and the PLC is connected with each electromagnetic pneumatic valve, each pressure sensor, each electromagnetic proportional regulating valve, each temperature sensor, each heat exchanger and each hydrogen concentration detector.
Further, three pressure relief channels connected in parallel are arranged on the second interface branch 320 and connected to the pressure relief air outlet 18: a fourth electromagnetic pneumatic valve 2-4 and a backpressure valve 9-1 are installed on the first pressure relief channel, a fifth electromagnetic pneumatic valve 2-5 is installed on the second pressure relief channel, and a second manual stop valve 1-2 is installed on the third pressure relief channel.
Further, the testing device further comprises a control air pipeline, the control air pipeline is connected with a control air source 19 and is sequentially provided with a fourth filter 6-4 and a control air regulating valve 5-3, and the control air pipeline is provided with five branches which are respectively connected to the first electromagnetic pneumatic valve 2-1, the second electromagnetic pneumatic valve 2-2, the third electromagnetic pneumatic valve 2-3, the fourth electromagnetic pneumatic valve 2-4 and the fifth electromagnetic pneumatic valve 2-5.
Furthermore, the outlet ends of the first hydrogen booster pump 7-1 and the second hydrogen booster pump 7-2 are also provided with a safety valve 10.
Further, the first manual stop valve 1-1 is also connected with a precision pressure gauge 11.
Further, the environment box is an explosion-proof constant humidity incubator.
The utility model discloses the beneficial effect that can reach is:
the utility model provides a be used for wading hydrogen part hydrogen cycle test device. The device inputs related information of a test part through an industrial personal computer, performs test control, stores test data and outputs a test result; data are acquired through a pressure sensor, a temperature sensor, a flowmeter and a hydrogen concentration detector, the electromagnetic pneumatic valve and the electromagnetic proportional speed regulating valve are controlled through an industrial personal computer and a PLC (programmable logic controller) to perform pressurization and pressure release processes of a hydrogen-involved part, the pressurization rate can be adjusted, and continuous and step-by-step pressurization hydrogen circulation tests are realized; controlling an electromagnetic proportional speed regulating valve and a heat exchanger through an industrial personal computer and a PLC (programmable logic controller) to regulate the temperature of hydrogen; the release pressure is accurately controlled by setting a back pressure valve; through different connection modes of the first interface branch and the second interface branch, the method for carrying out multiple hydrogen circulation tests on one device is realized.
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 inventive labor.
FIG. 1 is a schematic diagram of a hydrogen circulation test device for a hydrogen-related component according to an embodiment of the present invention;
fig. 2 is a system structure diagram of a hydrogen circulation test device for hydrogen-related components according to an embodiment of the present invention.
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 work belong to the protection scope of the present invention.
The utility model aims at providing a be used for wading hydrogen part hydrogen cycle test device, this utility model has realized wading hydrogen part hydrogen cycle test, wading the hydrogen part and can be check valve, stop valve and soft/hard tube etc. adjustable test medium hydrogen's temperature, adjustable test speed, but accurate control relief pressure, the test record can be traceed back, test data is complete and the inquiry is convenient.
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.
Fig. 1 is a schematic diagram of a hydrogen circulation test device for a hydrogen-related component according to an embodiment of the present invention. As shown in fig. 1, the hydrogen circulation test apparatus for a hydrogen-related component according to the present embodiment includes a pre-aeration main pipeline 300, a driving gas pipeline 400, and a control gas pipeline 500.
The main pre-aeration line 300 includes a first interface branch 310 and a second interface branch 320. The head end of the pre-aeration main pipeline 300 is connected with a pre-aeration air source 16 and is sequentially provided with a first filter 6-1, a first pressure sensor 3-1, a first electromagnetic pneumatic valve 2-1, a safety valve 10, a first manual stop valve 1-1, a second pressure sensor 3-2 and a flowmeter 12, a first hydrogen booster pump 7-1 and a first hydrogen booster pump 7-2 which are connected in parallel are arranged between the first electromagnetic pneumatic valve 2-1 and the safety valve 10, and the first electromagnetic pneumatic valve 2-1 and the safety valve 10 are respectively connected with the inlet end and the outlet end of the first hydrogen booster pump 7-1 and the inlet end and the outlet end of the first hydrogen booster pump 7-2. The first pressure sensor 3-1 is used for measuring the pressure of the pre-aeration hydrogen gas source, and the second pressure sensor 3-2 is used for measuring the pressure of the outlet ends of the first hydrogen booster pump 7-1 and the second hydrogen booster pump 7-2. The safety valve 10 is positioned at the outlet ends of the first hydrogen booster pump and the second hydrogen booster pump to prevent the overpressure of the system. The first manual stop valve 1-1 is further connected with a precision pressure gauge 11 and used for checking a pressure sensor on the pipeline, and the first manual stop valve 1-1 is closed to cut off the precision pressure gauge 11 during testing.
The driving gas pipeline 400 is connected with a driving gas source 17 and is used for supplying driving gas for the first hydrogen booster pump and the second hydrogen booster pump. The driving gas pipeline 400 comprises a first driving gas branch 410 and a second driving gas branch 420, wherein the first driving gas branch 410 is connected to the driving gas inlet of the first hydrogen booster pump 7-1, and the second driving gas branch 420 is connected to the driving gas inlet of the second hydrogen booster pump 7-2. A second filter 6-2, a first driving air regulating valve 5-1 and a first electromagnetic proportional speed regulating valve 8-1 are sequentially arranged on the first driving air pipeline; and a third filter 6-3, a second driving air regulating valve 5-2 and a second electromagnetic proportional speed regulating valve 8-2 are sequentially arranged on the second driving air pipeline. The flow meter 12 is used for monitoring the hydrogen filling rate of the pipeline and adjusting the hydrogen filling rate by adjusting the electromagnetic proportional speed regulating valves 8-1-8-2.
Further, the branch of the main pre-aeration pipeline 300 of the experimental apparatus of this embodiment has two different functions, and the first interface branch 310 can implement variable flow rate operation of pressurization in the presence of cold hydrogen; the second interface branch 320 can realize normal-temperature hydrogen pressurization and pressure relief operation with variable flow.
Wherein, the first interface branch 310 is connected with a second electromagnetic pneumatic valve 2-2, a heat exchanger 13, a third pressure sensor 3-3 and a first temperature sensor 4-1 in sequence. The first interface branch 310 adjusts the temperature of the hydrogen by adjusting the temperature of the cooling medium of the heat exchanger 13 before the test; in the test, the first interface branch 310 adjusts the pressurizing rate of the hydrogen booster pump by adjusting the first electromagnetic proportional speed regulating valve 8-1-8-2 and the second electromagnetic proportional speed regulating valve 8-1-8-2, so that the temperature of the cooled hydrogen is adjusted in time. The temperature sensor 4-1 is installed at the rear end of the first interface branch and located at the rear end of the heat exchanger 13, and is used for measuring the temperature of the hydrogen medium pressurized by the sample to be tested. The first electromagnetic proportional speed regulating valve 8-1-8-2 and the second electromagnetic proportional speed regulating valve 8-1-8-2 are positioned on the driving gas supply pipelines of the first hydrogen booster pump 7-1-7-2, and the temperature of the hydrogen charging medium can be adjusted by adjusting the electromagnetic proportional speed regulating valves 8-1-8-2 in combination with a return signal of the temperature sensor 4-1. The second port branch 320 is provided with a third electromagnetic pneumatic valve 2-3 and a fourth pressure sensor 3-4, and three pressure relief channels are arranged on the second port branch. The fourth electromagnetic pneumatic valve 2-4 and the back pressure valve 9-1 are arranged on the first pressure relief channel and used for accurately controlling the pressure relief pressure of the test when the pressure relief pressure needs to be accurately controlled; a fifth electromagnetic pneumatic valve 2-5 is arranged on the second pressure relief channel and is used for relieving the pressure less than or equal to 3 MPa; and a second manual stop valve 1-2 is arranged on the third pressure relief channel and used for manually relieving the pressure of the device when the electromagnetic pneumatic valve is damaged. The three pressure relief passages are arranged in parallel and connected to the pressure relief vent 18.
The testing device further comprises a control air pipeline 500 used for supplying air to each electromagnetic pneumatic valve on the pipeline, the control air pipeline is connected with a control air source 19 and is sequentially provided with a fourth filter 6-4 and a control air regulating valve 5-3, and the control air pipeline is provided with five branches which are respectively connected to the first electromagnetic pneumatic valve 2-1, the second electromagnetic pneumatic valve 2-2, the third electromagnetic pneumatic valve 2-3, the fourth electromagnetic pneumatic valve 2-4 and the fifth electromagnetic pneumatic valve 2-5.
The testing device further comprises an environment box 600, wherein the tail end of the first interface branch 310, the tail end of the second interface branch 320 and the sample 20 to be tested are arranged in the environment box 600, and the environment box is connected with the air suction pump 14 and the hydrogen concentration detector 15. The environment box is an explosion-proof constant-humidity incubator and is used for providing required temperature and humidity environments for test samples. The actual filling pressure of the sample to be tested is measured by the third pressure sensor 3-3 or the fourth pressure sensor 3-4.
The testing device is further provided with an industrial personal computer 700 and a PLC, the industrial personal computer is connected with the PLC, and the PLC is connected with each electromagnetic pneumatic valve, each pressure sensor, each electromagnetic proportional regulating valve, each temperature sensor, each heat exchanger and each hydrogen concentration detector. In the figure, a port A is an electromagnetic valve control port, and a port B is a signal acquisition port. An information input module, a hydrogen circulation test module, a test data storage and reproduction module and a hydrogen alarm linkage module are arranged in the industrial personal computer; the input information module is used for inputting detailed information into each test component according to a program input by the industrial personal computer and archiving the detailed information; the hydrogen circulation test module is used for realizing the hydrogen circulation test of the hydrogen-related part, and a pressurization channel and a pressure relief channel can be selected according to the test requirements; the test data storage and reproduction module is used for realizing the storage of test data, the query of the test data, the processing of the test data and the printing of a report; the hydrogen alarm linkage module is used for emergency automatic stop when the hydrogen concentration exceeds the standard and carrying out sound-light alarm.
Fig. 2 is a system structure diagram of a hydrogen circulation test device for hydrogen-related components according to an embodiment of the present invention.
As shown in fig. 2, an information entry module 201, a port 2 pressurization and pressure relief test module 202 of a second port branch, a port 2 pressurization and pressure relief control lower limit test module 203 of the second port branch, a port 1 pressurization-port 2 pressure relief test module 204 of a first port branch, a port 1 pressurization-port 2 pressure relief control lower limit test module 205 of a first port branch, a test data storage and reproduction module 206, and a hydrogen alarm linkage module 207 are built in the industrial personal computer; the information input module 201 is used for inputting detailed information into each test component according to a program input by the industrial personal computer and archiving the detailed information; the interface 2 is a pressurizing and pressure-releasing test module 202, which is used for a normal-temperature hydrogen medium test and a hydrogen circulation test with one path shared by pressurizing and pressure-releasing; the interface 2 is a pressurizing and pressure-releasing and pressure-controlling lower limit test module 203, which is used for a normal-temperature hydrogen medium test, and a hydrogen circulation test which shares one path of pressurizing and pressure-releasing and has a precise control requirement on the pressure-releasing pressure; the interface 1 pressurization-interface 2 pressure relief test module 204 is used for performing a hydrogen pressure circulation test by using a cold hydrogen medium; the interface 1 pressurization-interface 2 pressure relief and pressure lower limit control test module 205 is used for a hydrogen circulation test which needs to use a hydrogen medium meeting cold and has a requirement on accurate control of pressure relief; the test data storage and reproduction module 206 is used for storing test data, inquiring the test data, processing the test data and printing a report; and the hydrogen alarm linkage module 207 is used for emergency automatic stop when the hydrogen concentration exceeds the standard and carrying out sound-light alarm.
After the information input module 201, the interface 2 pressurization and pressure release test module 202 is selected to perform a hydrogen circulation test, and enters a test interface, and first, the circulation upper limit pressure, the circulation upper limit dwell time, the circulation lower limit pressure, the circulation lower limit dwell time, the hydrogen filling rate, the allowable pressure drop and the circulation times are set, and a start test button is clicked. In the system boosting stage, the first electromagnetic pneumatic valve 2-1 and the third electromagnetic pneumatic valve 2-3 are started, the first electromagnetic proportional speed regulating valve 8-1-8-2 and the second electromagnetic proportional speed regulating valve 8-1 are regulated, the hydrogen filling rate is enabled to reach a set value, and a test sample is pressurized; in the upper limit pressure maintaining stage of the system, when a pressure signal transmitted from the fourth pressure sensor 3-4 is equal to a set circulating upper limit pressure, the first electromagnetic pneumatic valve 2-1, the third electromagnetic pneumatic valve 2-3 and the first electromagnetic proportional speed regulating valve 8-1-8-2 are closed, pressure maintaining is carried out, the pressure maintaining time is the set circulating upper limit pressure maintaining time, and when the pressure signal drop value transmitted from the fourth pressure sensor 3-4 is larger than the set allowable pressure drop, the test is unqualified; in the system pressure relief stage, the fifth electromagnetic pneumatic valve 2-5 is opened until the pressure signal transmitted by the fourth pressure sensor 3-4 reaches the set lower limit pressure of circulation, and the fifth electromagnetic pneumatic valve 2-5 is closed; and entering a circulation lower limit pressure maintaining stage, wherein after the circulation lower limit pressure maintaining time is over, the circulation is a complete circulation, and then, the pressure circulation is performed for the second time until the set circulation times or the leakage of the test valve is reached.
After the information input module 201, the interface 2 is selected to pressurize and release pressure and control the pressure lower limit test module 203 to perform a hydrogen circulation test, and then the hydrogen circulation test enters a test interface, and firstly, the circulation upper limit pressure maintaining time, the circulation lower limit pressure maintaining time, the hydrogen filling rate, the allowable pressure drop and the circulation times are set, and a test starting button is clicked. In the system boosting stage, the first electromagnetic pneumatic valve 2-1 and the third electromagnetic pneumatic valve 2-3 are started, the first electromagnetic proportional speed regulating valve 8-1-8-2 and the second electromagnetic proportional speed regulating valve 8-1 are regulated, the hydrogen filling rate is enabled to reach a set value, and a test sample is pressurized; in the upper limit pressure maintaining stage of the system, when a pressure signal transmitted from the fourth pressure sensor 3-4 is equal to a set circulating upper limit pressure, the first electromagnetic pneumatic valve 2-1, the third electromagnetic pneumatic valve 2-3 and the first electromagnetic proportional speed regulating valve 8-1-8-2 are closed, pressure maintaining is carried out, the pressure maintaining time is the set circulating upper limit pressure maintaining time, and when the pressure signal drop value transmitted from the fourth pressure sensor 3-4 is larger than the set allowable pressure drop, the test is unqualified; in the system pressure relief stage, the fourth electromagnetic pneumatic valve 2-4 is opened until the pressure signal transmitted by the fourth pressure sensor 3-4 reaches the set lower limit pressure of the circulation, and the fourth electromagnetic pneumatic valve 2-4 is closed; and entering a circulation lower limit pressure maintaining stage, wherein after the circulation lower limit pressure maintaining time is over, the circulation is a complete circulation, and then, the pressure circulation is performed for the second time until the set circulation times or the leakage of the test valve is reached.
After the information input module 201, the interface 1 pressurization-interface 2 pressure relief test module 204 is selected to perform a hydrogen circulation test, a test interface is entered, circulation upper limit pressure maintaining time, circulation lower limit pressure maintaining time, hydrogen filling temperature, allowable pressure drop and circulation times are set, and after the temperature of a cooling medium of the heat exchanger reaches the system requirement, a test starting button is clicked. In the system boosting stage, the first electromagnetic pneumatic valve 2-1 and the second electromagnetic pneumatic valve 2-2 are started, the first electromagnetic proportional speed regulating valve 8-1-8-2 is adjusted, the first temperature sensor 4-1 is enabled to reach the set hydrogen charging temperature, and a test sample is pressurized; in the upper limit pressure maintaining stage of the system, when a pressure signal transmitted from the fourth pressure sensor 3-4 is equal to a set circulating upper limit pressure, the first electromagnetic pneumatic valve 2-1, the second electromagnetic pneumatic valve 2-2 and the first electromagnetic proportional speed regulating valve 8-1-8-2 are closed, pressure maintaining is carried out, the pressure maintaining time is the set circulating upper limit pressure maintaining time, and when the pressure signal drop value transmitted from the fourth pressure sensor 3-4 is larger than the set allowable pressure drop, the test is unqualified; in the system pressure relief stage, the fifth electromagnetic pneumatic valve 2-5 is opened until the pressure signal transmitted by the fourth pressure sensor 3-4 reaches the set lower limit pressure of circulation, and the fifth electromagnetic pneumatic valve 2-5 is closed; and entering a circulation lower limit pressure maintaining stage, wherein after the circulation lower limit pressure maintaining time is over, the circulation is a complete circulation, and then, the pressure circulation is performed for the second time until the set circulation times or the leakage of the test valve is reached.
After the information input module 201, the interface 1 pressurization-interface 2 pressure relief and pressure lower limit test module 205 is selected to perform a hydrogen circulation test, a test interface is entered, circulation upper limit pressure maintaining time, circulation lower limit pressure maintaining time, hydrogen charging temperature, allowable pressure drop and circulation times are set, and after the temperature of a cooling medium of the heat exchanger meets the system requirement, a test starting button is clicked. In the system boosting stage, the first electromagnetic pneumatic valve 2-1 and the second electromagnetic pneumatic valve 2-2 are started, the first electromagnetic proportional speed regulating valve 8-1-8-2 is adjusted, the first temperature sensor 4-1 is enabled to reach the set hydrogen charging temperature, and a test sample is pressurized; in the upper limit pressure maintaining stage of the system, when a pressure signal transmitted from the fourth pressure sensor 3-4 is equal to a set circulating upper limit pressure, the first electromagnetic pneumatic valve 2-1, the second electromagnetic pneumatic valve 2-2 and the first electromagnetic proportional speed regulating valve 8-1-8-2 are closed, pressure maintaining is carried out, the pressure maintaining time is the set circulating upper limit pressure maintaining time, and when the pressure signal drop value transmitted from the fourth pressure sensor 3-4 is larger than the set allowable pressure drop, the test is unqualified; in the system pressure relief stage, the fourth electromagnetic pneumatic valve 2-4 is opened until the pressure signal transmitted by the fourth pressure sensor 3-4 reaches the set lower limit pressure of the circulation, and the fourth electromagnetic pneumatic valve 2-4 is closed; and entering a circulation lower limit pressure maintaining stage, wherein after the circulation lower limit pressure maintaining time is over, the circulation is a complete circulation, and then, the pressure circulation is performed for the second time until the set circulation times or the leakage of the test valve is reached.
The hydrogen alarm linkage module 207 is configured to send out an audible and visual alarm when the hydrogen concentration detector 15 detects that the hydrogen concentration in the environment box exceeds the standard, and perform a linkage suspension test with the interface 2 pressurization and pressure relief test module 202, the interface 2 pressurization and pressure relief and control pressure lower limit test module 203, the interface 1 pressurization and interface 2 pressure relief test module 204, and the interface 1 pressurization and interface 2 pressure relief and control pressure lower limit test module 205 until the hydrogen concentration detector 15 detects that the hydrogen concentration is within a safe range.
The test data storage and reproduction module 206 may record the current cycle number, pressure, time, and hydrogen sensor concentration in real time. The data of the X axis and the Y axis can be selected through the selection frame to check a time-pressure curve of a certain time period, all test data of the certain time period can be inquired, all test data of a test sample of a certain model can be inquired, and the selected test data is printed;
the utility model discloses an it is experimental to wade hydrogen part hydrogen cycle, wade the hydrogen part can be check valve, stop valve and soft/hard tube etc. and adjustable test medium hydrogen's temperature, but the accurate control pressure of releasing, the test record can be traceed back, the test data is complete and the inquiry is convenient.
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 (6)
1. A hydrogen circulation test device for hydrogen-related components comprises a pre-aeration main pipeline (300) and a driving gas pipeline (400), and is characterized in that,
the head end of the pre-aeration main pipeline (300) is connected with a pre-aeration air source (16) and is sequentially provided with a first filter (6-1), a first pressure sensor (3-1), a first electromagnetic pneumatic valve (2-1), a first manual stop valve (1-1), a second pressure sensor (3-2) and a flowmeter (12), and a first hydrogen booster pump (7-1) and a second hydrogen booster pump (7-2) which are connected in parallel are arranged between the first electromagnetic pneumatic valve (2-1) and the first manual stop valve (1-1); the tail end of the pre-air-increasing main pipeline (300) is connected with a first interface branch (310) and a second interface branch (320), and a second electromagnetic pneumatic valve (2-2), a heat exchanger (13), a third pressure sensor (3-3) and a first temperature sensor (4-1) are sequentially arranged on the first interface branch (310); a third electromagnetic pneumatic valve (2-3) is arranged on the second interface branch (320);
the driving gas pipeline (400) is connected with a driving gas source (17) and comprises a first driving gas branch (410) and a second driving gas branch (420), the first driving gas branch (410) is connected to a driving gas inlet of the first hydrogen booster pump (7-1), the first driving gas branch (410) is sequentially provided with a second filter (6-2), a first driving gas regulating valve (5-1) and a first electromagnetic proportional speed regulating valve (8-1), the second driving gas branch (420) is connected to a driving gas inlet of the second hydrogen booster pump (7-2), and the second driving gas branch (420) is sequentially provided with a third filter (6-3), a second driving gas regulating valve (5-2) and a second electromagnetic proportional speed regulating valve (8-2);
the testing device further comprises an environment box (600), wherein the tail end of the first interface branch (310), the tail end of the second interface branch (320) and a sample to be tested are arranged in the environment box (600), and the environment box is connected with an air suction pump (14) and a hydrogen concentration detector (15);
the testing device is further provided with an industrial personal computer (700) and a PLC (programmable logic controller), the industrial personal computer is connected with the PLC, and the PLC is connected with each electromagnetic pneumatic valve, each pressure sensor, each electromagnetic proportional regulating valve, each temperature sensor, each heat exchanger and each hydrogen concentration detector.
2. The hydrogen circulation test device for the hydrogen-related component is characterized in that three pressure relief channels connected in parallel are arranged on the second interface branch (320) and are connected to the pressure relief gas outlet (18): a fourth electromagnetic pneumatic valve (2-4) and a back pressure valve (9-1) are installed on the first pressure relief channel, a fifth electromagnetic pneumatic valve (2-5) is installed on the second pressure relief channel, and a second manual stop valve (1-2) is installed on the third pressure relief channel.
3. A hydrogen cycle test device for hydrogen-related parts according to claim 2, further comprising a control gas line (500) connected to the control gas source (19) and provided with a fourth filter (6-4) and a control gas regulating valve (5-3) in sequence, the control gas line having five branches connected to the first solenoid-operated valve (2-1), the second solenoid-operated valve (2-2), the third solenoid-operated valve (2-3), the fourth solenoid-operated valve (2-4) and the fifth solenoid-operated valve (2-5), respectively.
4. A hydrogen cycling test device for hydrogen-involved components according to claim 1, characterized in that the outlet ends of the first hydrogen booster pump (7-1) and the second hydrogen booster pump (7-2) are further provided with a safety valve (10).
5. A hydrogen circulation test device for hydrogen-involved components according to claim 1, wherein the first manual cut-off valve (1-1) is further connected with a precision pressure gauge (11).
6. The hydrogen circulation test device for the hydrogen-involved components according to claim 1, wherein the environment box is an explosion-proof constant humidity incubator.
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| CN112432775A (en) * | 2020-11-03 | 2021-03-02 | 大连锅炉压力容器检验检测研究院有限公司 | Hydrogen circulation test device for hydrogen-involved component |
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| CN112432775A (en) * | 2020-11-03 | 2021-03-02 | 大连锅炉压力容器检验检测研究院有限公司 | Hydrogen circulation test device for hydrogen-involved component |
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