CN209182170U - A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system - Google Patents
A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system Download PDFInfo
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- CN209182170U CN209182170U CN201821951938.1U CN201821951938U CN209182170U CN 209182170 U CN209182170 U CN 209182170U CN 201821951938 U CN201821951938 U CN 201821951938U CN 209182170 U CN209182170 U CN 209182170U
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Abstract
The utility model provides a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system, wherein system includes sweat box, the high pressure vessel being placed in sweat box, the tested hydrogen cylinder being placed in high pressure vessel, the tested hydrogen cylinder is connect with Hydrogen Vapor Pressure unit, there is inlet, liquid outlet on the high pressure vessel, high pressure vessel is connected by inlet, liquid outlet and fluid pressure cycling element, and the pressure cycling test to tested hydrogen cylinder is realized by the variation of the pressure difference of tested hydrogen cylinder internal hydrogen and tested hydrogen cylinder outside liquid.This system is using application fluid pressure circulation outside High Pressure Hydrogen gas cylinder internal hydrogen pressure, gas cylinder, pressures cycle is carried out to High Pressure Hydrogen gas cylinder using the variation of the pressure difference of High Pressure Hydrogen gas cylinder internal hydrogen and High Pressure Hydrogen gas cylinder outside liquid, and the pressure cycling test at various temperature is carried out to High Pressure Hydrogen gas cylinder, the cost for reducing test improves the safety of test.
Description
Technical field
The utility model relates generally to checking equipment technical field, specifically a kind of full-automatic high-pressure hydrogen cylinder hydrogen circulation
Pilot system.
Background technique
As the development trend of new-energy automobile in recent years is increasingly powerful, fuel cell car is also more and more closed
Note, hydrogen fuel cell Industry Quick Development, to the also higher and higher using pressure requirements of hydrogen cylinder.In existing fuel cell system
The hydrogen cylinder used generally uses aluminum liner carbon fiber full wrapped cylinders and plastic inner container carbon fiber full wrapped cylinders, hydrogen storage pressure
70MPa can be reached, the design life of hydrogen cylinder is very long, and hydrogen cylinder is as the pressure vessel filled repeatedly, in order to investigate it
General safety performance needs to examine its safety using the test method of Hydrogen Vapor Pressure circulation.Existing test method is to use
Hydrogen is that medium does pressure cycling test, and hydrogen pressurization is filled with experimental rig, pressure maintaining for a period of time, then pressure release, as one
The hydrogen of a pressures cycle, pressure release utilizes Recovery and recycle, and entire experimental rig needs many and diverse and huge system, test
Cost is very high, and entire pilot system will also bear the impact of pressure, and the leakage point of system itself is more, and it is hidden to there is very big safety
Suffer from.
Utility model content
For the deficiency for solving current technology, the utility model combination prior art provides a kind of complete from practical application
Automatic high pressure hydrogen cylinder hydrogen cyclic test system, this system is using application outside High Pressure Hydrogen gas cylinder internal hydrogen pressure, gas cylinder
Fluid pressure circulation, using High Pressure Hydrogen gas cylinder internal hydrogen and High Pressure Hydrogen gas cylinder outside liquid pressure difference variation come to high pressure
Hydrogen cylinder carries out pressures cycle, and carries out the pressure cycling test at various temperature to High Pressure Hydrogen gas cylinder, reduces test
Cost improves the safety of test, using full automatic control system, carries out data acquisition and concentration to entire pilot system
Control, realizes the full-automation of test.
The technical solution of the utility model is as follows:
A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system, including sweat box, the high pressure pressure being placed in sweat box
Force container, the tested hydrogen cylinder being placed in high pressure vessel, the tested hydrogen cylinder are connect with Hydrogen Vapor Pressure unit, the height
There is inlet, liquid outlet, high pressure vessel passes through inlet, liquid outlet and fluid pressure cycling element on pressure pressure container
Connection is realized by the variation of the pressure difference of tested hydrogen cylinder internal hydrogen and tested hydrogen cylinder outside liquid to tested hydrogen cylinder
Pressure cycling test.
The fluid pressure cycling element includes that wet tank, liquid pressurization pipeline, the main blowdown line of liquid, liquid pair are let out
Pressure pipeline；Liquid is pressurized pipeline one end and is connected to wet tank, and the inlet connection of the other end and high pressure vessel increases in liquid
Electric-motor pump, check valve, liquid-pressure pick-up are sequentially set on pressure pipeline；The main blowdown line one end of liquid and high pressure vessel
Liquid outlet connection, the other end is communicated to wet tank by liquid pressure release electromagnetic valve；Liquid pair blowdown line one end is connected to position
Liquid between check valve and electric-motor pump is pressurized pipeline, and the other end is located at liquid pressure release electricity by the connection of normally opened electromagnetic relief valve
Main blowdown line between magnet valve and wet tank.
The inlet front end of high pressure vessel is equipped with heat exchanger on liquid pressurization pipeline, and the heat exchanger is placed in
In sweat box.
The sweat box is connected with temperature sensor.
The inlet is arranged at the top of high pressure vessel, and liquid outlet is arranged in high pressure vessel bottom.
The Hydrogen Vapor Pressure unit includes low pressure hydrogen storage tank, pneumatic actuation hydrogen pressurization pump, hydrogen gas pipeline, hydrogen
It is pressurized pipeline, hydrogen blowdown line；It is defeated that pneumatic actuation hydrogen pressurization pump is equipped with driving gas source interface, hydrogen input interface, hydrogen
Outgoing interface, hydrogen gas pipeline one end connect low pressure hydrogen storage tank, and the other end connects hydrogen input interface, on hydrogen gas pipeline
Equipped with hydrogen regulator；Hydrogen pressurization pipeline one end connects hydrogen output interface, and the other end connects tested hydrogen cylinder, hydrogen pressurization
Pipeline is equipped with hydrogen pressurization solenoid valve, hydrogen gas pressure sensor；Hydrogen blowdown line one end is connect with hydrogen pressurization pipeline, even
Between hydrogen pressurization solenoid valve and pressure sensor, the other end is connect with hydrogen gas pipeline at the position connect, the portion of connection
Between low pressure hydrogen storage tank and hydrogen regulator, hydrogen blowdown line is equipped with hydrogen pressure release electromagnetic valve for position.
The driving gas source of pneumatic actuation hydrogen increasing pump uses air or nitrogen.
Pilot system further includes control system, and control system is used for Hydrogen Vapor Pressure unit, fluid pressure cycling element, temperature
The automatic control of case and data acquisition.
The utility model has the beneficial effects that
High Pressure Hydrogen gas cylinder internal applies the upper pressure limit value of test determination, uses liquid outside hydrogen cylinder using hydrogen as medium
Body is that medium carries out pressures cycle, utilizes the variation of the pressure difference of High Pressure Hydrogen gas cylinder internal hydrogen and High Pressure Hydrogen gas cylinder outside liquid
To carry out pressures cycle to High Pressure Hydrogen gas cylinder, using full automatic control system, to entire pilot system carry out data acquisition and
Centralized control realizes the full-automation of test, and the structure of control system system is simple, work efficiency is high, and experimentation cost is low, peace
Full good reliability；It is exchanged heat using heat exchanger, the heating and cooling of liquid in high pressure vessel can be fast implemented, realized not
With the test demand under operating condition.
Detailed description of the invention
Attached drawing 1 is Tthe utility model system schematic diagram.
Label shown in attached drawing:
1, low pressure hydrogen storage tank, 2, hydrogen regulator, 3, driving gas source interface, 4, pneumatic actuation hydrogen pressurization pump, 5, hydrogen
Gas pressurization pipeline, 6, hydrogen gas pressure sensor, 7, sweat box, 8, tested hydrogen cylinder, 9, high pressure vessel, 10, inlet,
11, heat exchanger, 12, liquid-pressure pick-up, 13, the main blowdown line of liquid, 14, liquid pressure release electromagnetic valve, 15, check valve, 16,
Liquid is pressurized pipeline, 17, normally opened electromagnetic relief valve, 18, liquid pair blowdown line, 19, electric-motor pump, 20, wet tank, 21, control
System processed, 22, liquid outlet, 23, temperature sensor, 24, hydrogen pressure release electromagnetic valve, 25, hydrogen pressurization solenoid valve, 26, hydrogen lets out
Pressure pipeline, 27, hydrogen output interface, 28, hydrogen input interface 29, hydrogen gas pipeline.
Specific embodiment
With reference to the drawings and specific embodiments, the utility model is described in further detail.It should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, having read the utility model instruction
Content after, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms are equally fallen
In range defined herein.
As shown in Figure 1, a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system, mainly include Hydrogen Vapor Pressure unit,
Sweat box 7, high pressure vessel 9, fluid pressure cycling element, control system 21, tested hydrogen cylinder 8, wherein tested hydrogen cylinder 8
It is placed in high pressure vessel 9, tested hydrogen cylinder 8 is connect with Hydrogen Vapor Pressure unit, and inlet is equipped at the top of high pressure vessel 9
10, bottom is equipped with liquid outlet 22, and high pressure vessel 9 is connected by inlet 10 and liquid outlet 22 and fluid pressure cycling element
It connects, high pressure vessel 9 is placed in sweat box 7.Using hydrogen as medium inside the tested hydrogen cylinder 8 of the utility model, apply examination
Defined upper pressure limit value is tested, uses liquid to carry out pressures cycle for medium outside tested hydrogen cylinder 8, utilizes tested hydrogen cylinder 8
The variation of the pressure difference of internal hydrogen and outside liquid to carry out pressures cycle to tested hydrogen cylinder 8.
The fluid pressure cycling element of the utility model includes wet tank 20, liquid pressurization pipeline 16, the main pressure release of liquid
Electric-motor pump 19, check valve 15, fluid pressure is sequentially arranged on liquid pressurization pipeline 16 in pipeline 13, liquid pair blowdown line 18
Sensor 12, heat exchanger 11, liquid pressurization pipeline 16 are connect with the inlet 10 of high pressure vessel 9, the main blowdown line of liquid
13 one end are connect with the liquid outlet 22 of high pressure vessel 9, and the other end is communicated to wet tank by liquid pressure release electromagnetic valve 14
20, liquid of 18 one end of liquid pair blowdown line connection between check valve 15 and electric-motor pump 19 is pressurized pipeline 16, the other end
It is connected to the main blowdown line 13 between liquid pressure release electromagnetic valve 14 and wet tank 20 by normally opened electromagnetic relief valve 17, is changed
Hot device 11 is placed in sweat box 7.
The Hydrogen Vapor Pressure unit of the utility model include low pressure hydrogen storage tank 1, pneumatic actuation hydrogen pressurization pump 4, hydrogen into
Gas pipeline 29, hydrogen pressurization pipeline 5, hydrogen blowdown line 26；Pneumatic actuation hydrogen pressurization pump 4 is equipped with driving gas source interface 3, hydrogen
Gas input interface 28, hydrogen output interface 27, hydrogen gas pipeline 29 be equipped with hydrogen regulator 2, hydrogen gas pipeline 29 with
Hydrogen input interface 28 connects, and hydrogen pressurization pipeline 5 is connect with hydrogen output interface 27, and hydrogen pressurization pipeline 5 is equipped with hydrogen
Boost electromagnetic valve 25, hydrogen gas pressure sensor 6,5 end of hydrogen pressurization pipeline are connect with tested hydrogen cylinder 9；Hydrogen blowdown line
26 one end are connect with hydrogen pressurization pipeline 5, and the position of connection is between hydrogen pressurization solenoid valve 25 and pressure sensor 6, hydrogen
26 other end of gas blowdown line is connect with hydrogen gas pipeline 29, and the position of connection is located at low pressure hydrogen storage tank 1 and hydrogen decompression
Between the 2 of device.
The control system of the utility model and the liquid-pressure pick-up 12, electric-motor pump 19, liquid of fluid pressure unit are let out
Electric signal connects between pressure electromagnetic valve 14, electromagnetic relief valve open in usual 17, the pneumatic actuation hydrogen pressurization with Hydrogen Vapor Pressure unit
Pump 4, hydrogen pressurization solenoid valve 25, hydrogen gas pressure sensor 6, electric signal connection between hydrogen pressure release electromagnetic valve 24, with sweat box
7,23 electric signal of temperature sensor connects, and control system has the function of data acquisition and control.
The specific test method of the utility model is as follows:
After control system 21 sets program, start to work, the driving gas source interface of starting pneumatic actuation hydrogen pressurization pump 4
3 are passed through nitrogen or air, and low pressure hydrogen of the low pressure hydrogen storage tank 1 after 2 pressure stabilizing of hydrogen regulator is pressurized to test pressure
Setting value, tests the test being divided under three kinds of room temperature, high temperature and low temperature situations, and gas has the phenomenon that expanding with heat and contract with cold, control system
The signal that system is provided according to hydrogen gas pressure sensor 6 controls the switch of hydrogen pressurization solenoid valve 25 and hydrogen pressure release electromagnetic valve 24
And closure, the pressure of automatic stabilisation test, and the hydrogen through 26 pressure release of hydrogen blowdown line is released to energy in hydrogen low pressure storage tank 1
Realize the recycling of hydrogen.
Control system controls the work of sweat box 7, and the temperature signal transmitted by temperature sensor 23 controls sweat box 7
Heating and cooling, meanwhile, by control fluid pressure unit, electric-motor pump 19 and liquid pressure release electromagnetic valve 14 open simultaneously, make
Liquid enters into 11 into high pressure vessel 9 through liquid pressurization pipeline 16, heat exchanger, then flows to liquid through the main blowdown line 13 of liquid
Body storage tank 20, forming circuit, by the heat exchange of heat exchanger 11, can fast implement the heating and drop of liquid in high pressure vessel 9
Temperature.
Control system 20 controls fluid pressure cell operation, is boosted, upper pressure limit value pressure maintaining, pressure release, low pressure limit
It is worth pressure maintaining.Boosting, upper pressure limit value pressure maintaining, pressure release, the specific method is as follows for low pressure limit value pressure maintaining:
Boost process: control system 20 controls the closing of liquid pressure release electromagnetic valve 14, normally opened electromagnetic relief valve 17 is in and closes,
The liquid of wet tank 20 is pressurized in liquid pressurization pipeline 16 by electric-motor pump 19, is set until liquid pressurization 16 pressure of pipeline reaches
The upper limit value of constant-pressure；
Upper pressure limit value pressure maintaining: when liquid pressurization 16 pressure of pipeline reaches setting upper limit of pressure value, fluid pressure is passed
Sensor 12 transmits a signal to control system 21, and control system 21 issues instruction, opens normally opened electromagnetic relief valve 17, electric-motor pump 19
Liquid have a wet tank 20 by the flow direction of liquid pair blowdown line 18, while check valve 15 is closed, liquid pressure release electromagnetic valve 14
It is in close state, realizes upper pressure limit value pressure maintaining；
Pressure release: after upper pressure limit value pressure maintaining reaches the stipulated time, control system 21 issues instruction, opens liquid pressure release electromagnetism
Valve 14, the liquid that liquid is pressurized in pipeline 16 flow to wet tank 20 through the main blowdown line 13 of liquid, meanwhile, normally opened electromagnetism overflow
Valve 17 is in the open state, and electric-motor pump 19 exports highly pressurised liquid directly through liquid pair blowdown line 18, the main blowdown line 13 of liquid
Wet tank 20 is flowed to, realizes the pressure release of liquid in liquid pressurization pipeline 16；
Low pressure limit value pressure maintaining: when the low pressure limit value of the liquid pressure release in liquid pressurization pipeline 16 to setting, control
System 21 is closed to instruction, liquid pressure release electromagnetic valve 14 is issued, and liquid is pressurized the liquid in pipeline 16 without normal direction wet tank 20
Circulation, normally opened electromagnetic relief valve 17 is in the open state, and the highly pressurised liquid that electric-motor pump 19 exports is directly through liquid pair blowdown line
18, the main blowdown line 13 of liquid flows to wet tank 20, realizes low pressure limit value pressure maintaining.
Claims (8)
1. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system, including sweat box, the high-pressure being placed in sweat box
Container, the tested hydrogen cylinder being placed in high pressure vessel, it is characterised in that: the tested hydrogen cylinder and Hydrogen Vapor Pressure unit connect
It connects, there is inlet, liquid outlet on the high pressure vessel, high pressure vessel passes through inlet, liquid outlet and liquid pressure
Power cycling element connection, by the pressure difference of tested hydrogen cylinder internal hydrogen and tested hydrogen cylinder outside liquid variation realize to by
Try the pressure cycling test of hydrogen cylinder.
2. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as described in claim 1, it is characterised in that: the liquid
Body pressures cycle unit includes wet tank, liquid pressurization pipeline, the main blowdown line of liquid, liquid pair blowdown line；Liquid increases
Pressure pipeline one end is connected to wet tank, the inlet connection of the other end and high pressure vessel, the sequence on liquid pressurization pipeline
Electric-motor pump, check valve, liquid-pressure pick-up are set；The liquid outlet of the main blowdown line one end of liquid and high pressure vessel connects
It connects, the other end is communicated to wet tank by liquid pressure release electromagnetic valve；Liquid pair blowdown line one end connection be located at check valve and
Liquid between electric-motor pump is pressurized pipeline, and the other end is located at liquid pressure release electromagnetic valve and liquid by the connection of normally opened electromagnetic relief valve
Main blowdown line between storage tank.
3. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as claimed in claim 2, it is characterised in that: described
The inlet front end that liquid is pressurized high pressure vessel on pipeline is equipped with heat exchanger, and the heat exchanger is placed in sweat box.
4. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as claimed in claim 3, it is characterised in that: the temperature
Degree case is connected with temperature sensor.
5. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as claimed in claim 2, it is characterised in that: it is described into
Liquid mouth is arranged at the top of high pressure vessel, and liquid outlet is arranged in high pressure vessel bottom.
6. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as described in claim 1, it is characterised in that: the hydrogen
Atmospheric pressure unit includes low pressure hydrogen storage tank, pneumatic actuation hydrogen pressurization pump, hydrogen gas pipeline, hydrogen pressurization pipeline, hydrogen
Blowdown line；Pneumatic actuation hydrogen pressurization pump be equipped with driving gas source interface, hydrogen input interface, hydrogen output interface, hydrogen into
Gas pipeline one end connects low pressure hydrogen storage tank, and the other end connects hydrogen input interface, and hydrogen gas pipeline is depressurized equipped with hydrogen
Device；Hydrogen pressurization pipeline one end connects hydrogen output interface, and the other end connects tested hydrogen cylinder, and hydrogen pressurization pipeline is equipped with hydrogen
Gas boost electromagnetic valve, hydrogen gas pressure sensor；Hydrogen blowdown line one end is connect with hydrogen pressurization pipeline, and the position of connection is located at
Between hydrogen pressurization solenoid valve and pressure sensor, the other end is connect with hydrogen gas pipeline, and the position of connection is located at pressure hydrogen
Between gas storage tank and hydrogen regulator, hydrogen blowdown line is equipped with hydrogen pressure release electromagnetic valve.
7. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as claimed in claim 6, it is characterised in that: pneumatic driving
The driving gas source of dynamic hydrogen increasing pump uses air or nitrogen.
8. a kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system as described in any one of claims 1 to 7, feature exist
It further include control system in: pilot system, control system is for Hydrogen Vapor Pressure unit, fluid pressure cycling element, sweat box
It automatically controls and data acquires.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951938.1U CN209182170U (en) | 2018-11-23 | 2018-11-23 | A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951938.1U CN209182170U (en) | 2018-11-23 | 2018-11-23 | A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system |
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| CN209182170U true CN209182170U (en) | 2019-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387437A (en) * | 2018-11-23 | 2019-02-26 | 丹阳市飞轮气体阀门有限公司 | A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system and test method |
-
2018
- 2018-11-23 CN CN201821951938.1U patent/CN209182170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387437A (en) * | 2018-11-23 | 2019-02-26 | 丹阳市飞轮气体阀门有限公司 | A kind of full-automatic high-pressure hydrogen cylinder hydrogen cyclic test system and test method |
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