CN104697861B - A kind of low energy consumption it is multistage from supercharging high-pressure tank atmosphere cyclic test system - Google Patents
A kind of low energy consumption it is multistage from supercharging high-pressure tank atmosphere cyclic test system Download PDFInfo
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- CN104697861B CN104697861B CN201510108760.9A CN201510108760A CN104697861B CN 104697861 B CN104697861 B CN 104697861B CN 201510108760 A CN201510108760 A CN 201510108760A CN 104697861 B CN104697861 B CN 104697861B
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Abstract
The present invention relates to high-pressure gas chamber test system, it is desirable to provide a kind of low energy consumption it is multistage from supercharging high-pressure tank atmosphere cyclic test system.The system includes filling subsystem, pressure release recovery subsystem and autonomous control subsystem；Wherein, filling subsystem includes Pneumatic booster machine, boosting controller, pre-cooler, and the source of the gas storage tank of at least two different pressures grades；Pressure release recovery subsystem includes volume control device, low pressure recovery buffer container and gas compressor；Autonomous control subsystem includes industrial computer, automatic valve and sensor；Industrial computer connects automatic valve, sensor, boosting controller, pre-cooler, gas compressor and pneumatic supercharger by signal wire respectively.The present invention reduces the usage amount of hydrogen and the compression energy consumption of hydrogen, the energy consumption of pre-cooler is reduced.The gases at high pressure centering pressurized air source storage tank and low-pressure gas source storage tank that testing container is fully utilized are pressurized, and without the supplement of outside energy, save energy.
Description
Technical field
The invention belongs to new energy field, be related to the gas circulation pilot system of high-pressure gas container, especially suitable for
Fuel gas (natural gas, hydrogen etc.) is tested for the gas circulation of the composite testing container of storage object.
Background technology
As fossil energy shortage and problem of environmental pollution increasingly highlight, high energy efficiency, the natural gas of low emission, hydrogen etc.
Gaseous energy plays more and more important role in present and following life, for store the container of these gases in order to
Higher volumetric storage density and quality storage density are obtained, generally using storage pressure high (20~70MPa), intensity height, matter
Measure light carbon fibre composite container.
In use, the fluctuation of pressure causes the fatigue of container to high-pressure bottle, simultaneously as gas is filled with (pressure
Contracting), release (expansion) influence, the equal acute variation of temperature, so as to cause the thermal stress of container, exacerbate the fatigue of container, it is right
In composite material vessel, because chamber wall heat transfer property is poor, the influence becomes apparent.Traditional Water pressure circulation test can not simulate
Container temperature and pressure while stress variation situation caused by significantly change during filling and use, can not simulate work
Gas, it is necessary to is that medium carries out gas circulation experiment using working gas to the permeation effects of container wall.
Because gas compressibility is big, test pressure is high in addition, and the operating cost of gas circulation test system is very high, and this is gas
One of obstacle of body circulation test.The hydrogen loop test system proposed in Chinese invention patent CN200810060100.8 solves
Hydrogen recycles problem, but does not consider the energy consumption problem in system operation, and it is designed in loading system
It is middle to be supplied using single-stage, use compressor boost completely in the design of pressure release recovery system, cause the waste of high-pressure energy with
Precool the lifting of energy.The gas compressor output pressure in the patent system and discharge capacity are very high simultaneously, add compressor
Acquisition cost.
The content of the invention
The technical problem to be solved in the present invention is to overcome deficiency of the prior art, there is provided a kind of multistage of low energy consumption is certainly
Supercharging high-pressure tank atmosphere cyclic test system.
In order to solve technical problem, solution of the invention is：
There is provided a kind of the multistage of low energy consumption also includes filling from supercharging high-pressure tank atmosphere cyclic test system, the system
System, pressure release recovery subsystem and autonomous control subsystem；
The filling subsystem includes Pneumatic booster machine, boosting controller, pre-cooler, and at least two different pressures
The source of the gas storage tank of power grade；The outlet line of each source of the gas storage tank is connected to boosting controller, boosting controller, pre- cold charge
Put and be sequentially connected with testing container by pipeline；The wherein minimum source of the gas storage tank of pressure rating is also connected to Pneumatic booster by pipeline
The import of machine, the outlet of Pneumatic booster machine are then connected to the higher source of the gas storage tank of pressure rating by pipeline；
The pressure release recovery subsystem includes volume control device, low pressure recovery buffer container and gas compressor；Flow
The end of control device one is connected to the suction line of testing container, and the other end is respectively connected to low pressure by pipeline and reclaims buffer container and extremely
A few source of the gas storage tank；Low pressure recovery buffer container is also sequentially connected gas compressor and the minimum gas of pressure rating by pipeline
Source storage tank；
The autonomous control subsystem includes industrial computer, automatic valve and sensing between each equipment in connecting pipeline
Device, and the sensor in environmental cabinet；Industrial computer connects each automatic valve and sensor, industrial computer by signal wire respectively
Boosting controller, pre-cooler, gas compressor and pneumatic supercharger are also respectively connecting to by signal wire.
In the present invention, the automatic valve includes：It is respectively arranged on pneumatic on the gas inlet-outlet pipeline of each source of the gas storage tank
Magnetic valve；Air intake valve between pre-cooler and testing container；Between volume control device and source of the gas storage tank
Reversely charging valve；And the Drainage valve between volume control device and low pressure recovery buffer container.
In the present invention, the sensor includes：Pressure sensor on each source of the gas storage-tank effluent line；Located to be measured
Pressure sensor at container entrance；Temperature sensor inside testing container；Buffer container and gas are reclaimed located at low pressure
Pressure sensor between gas compressor on pipeline；And temperature sensor and gas concentration sensor in environmental cabinet.
In the present invention, check valve is equipped with the gateway pipeline of each source of the gas storage tank.
In the present invention, managed on the outlet line of each source of the gas storage tank, between low pressure recovery buffer container and gas compressor
On line, safety valve is respectively equipped with.
In the present invention, the industrial computer all other equipment or pipeline in the side of insulation blocking wall, system are all provided with
In the opposite side of insulation blocking wall.
The realization principle of the present invention：
Multistage is from supercharging high-pressure tank atmosphere cyclic test system is divided into filling subsystem, subsystem is reclaimed in pressure release, automatic
The three parts such as control subsystem.Filling subsystem includes low pressure, middle pressure, high pressure three-level source of the gas storage tank, Pneumatic booster machine, boosting control
Device processed, pre-cooler etc.；Pressure release recovery subsystem includes volume control device, low pressure recovery buffer container, gas compressor
Deng above-mentioned part is connected by pressure piping with all kinds of valves, and pressure sensor is configured with pipeline；Automatic control system is led to
The data such as collection pressure sensor, temperature sensor, gas concentration sensor are crossed, according to default, control air-operated solenoid valve,
The operation of the parts such as gas compressor, Pneumatic booster machine, pre-cooler, boosting controller, environmental cabinet.In the liter of test process
Pressure stage, control system are inflated using low pressure, middle pressure, high-pressure air source to testing container successively, when testing container reaches setting pressure
After power, system closes air intake valve, into pressure release recovery stage, is first turned on reversely charging valve, utilizes the high pressure in testing container
Gas is successively middle pressurized air source and low-pressure gas source reversely charging gas, realizes being pressurized certainly for this two-stage source of the gas, then opens Drainage valve,
Supplement enters low-pressure gas source storage tank after by compressor, the low-pressure gas released out is compressed, in whole pressure release recovery stage, gas
The pressure of high-pressure air source and middle pressurized air source is successively supplemented to setting pressure, realizes source of the gas by dynamic supercharger from low-pressure gas source air-breathing
Be pressurized again, so as to complete the charge and discharge circulation of " storage of higher pressures-quickly fill-pressure release recovery-from be pressurized-is pressurized again ".
In the present invention, autonomous control subsystem is run according to each sensor or the operational factor of equipment transmission, control system,
And judge test result；Subsystem is filled using source of the gas storage tank and the pressure difference of testing container, passes through the keying of air intake valve (20)
Realize the quick filling to testing container；Pressure release recovery subsystem is pressurized again by reversely charging from supercharging and compressor realizes circulating air
The recycling of body.
In filling process, sources of the gas at different levels are followed successively by testing container filling gas under the control of autonomous control subsystem,
During this, boosting controller controls the rate of pressure rise of testing container, the temperature of pre-cooler control filling gas.Pressure release
Cheng Zhong, first with the pressure difference of testing container 24 and source of the gas storage tank realize centering pressurized air source, low-pressure gas source reversely charging, realize this two
Level source of the gas is pressurized certainly；Then tonifying Qi is carried out to low-pressure gas source using gas compressor, it is pneumatic to increase during the entire process of pressure release
Press sucks gas from low-pressure gas source, and high-pressure air source, middle pressurized air source ftercompction successively are realized into increasing again for source of the gas to pressure is set
Pressure.
In the present invention, environmental cabinet is a closed container for being capable of regulating and controlling temperature, can bear certain pressure, in appearance to be measured
When device leaks, the gas concentration sensor in environmental cabinet can detect gas leakage, and explosion time occurs in testing container,
Environmental cabinet can keep out part impact energy.
Compared with prior art, the invention has the advantages that：
1st, the design of gas source scheme of multiple different pressures grades in the present invention, compared with single-stage design scheme, due to portion
Divide the reduction of Hydrogen Vapor Pressure, reduce the usage amount of hydrogen and the compression energy consumption of hydrogen；In filling process, due to boosting rectifier control
The reduction of pressure difference before and after device, gas temperature change will also decrease caused by Joule-Thomson effect, and then reduce pre- cold charge
The energy consumption put.
2nd, the gases at high pressure centering pressurized air source storage of testing container from supercharging recovery, is being fully utilized in pressure release recovery subsystem
Tank and low-pressure gas source storage tank are pressurized, and without the supplement of outside energy, save energy.
3rd, the selection of Pneumatic booster machine causes the highest output pressure of gas compressor without necessarily achieving the pressure of high-pressure air source,
As long as reaching the design pressure of low-pressure gas source, the acquisition cost of compressor is greatly reduced.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Solid line represents gas piping in figure, and dotted line represents control and signal line.Each reference：
1. Pneumatic booster machine, 2. check valves, 3,4,5,6,15,16,17. air-operated solenoid valves, 7. high-pressure air source storage tanks, in 8.
Pressurized air source storage tank, 9. low-pressure gas source storage tanks, 10. pressure sensors, 11. safety valves, 12. pressure sensors, 13. pressure sensings
Device, 14. hand stop valves, 18. boosting controllers, 19. pre-coolers, 20. air intake valves, 21. pressure sensors, 22. temperature
Spend sensor, 23. environmental cabinets, 24. testing containers, 25. temperature sensors, 26. gas concentration sensors, 27. flows control dress
Put, 28. gas compressors, 29. low pressure recovery buffer container, 30. reversely charging valves, 31. Drainage valves, 32. insulation blocking walls,
33. industrial computer.
Embodiment
The present invention is further detailed below in conjunction with the accompanying drawings.
As shown in drawings, system set forth in the present invention includes three subsystems, and one is filling subsystem, by low pressure gas
Source storage tank 9, middle pressurized air source storage tank 8, the source of the gas storage tank of high-pressure air source storage tank 7 this three-level different pressures grade, and, boosting rectifier control
Device 18, pre-cooler 19, Pneumatic booster machine 1 are formed by connecting by high pressure line and valve；One is pressure release recovery subsystem,
Passed through by volume control device 27, reversely charging valve 30, Drainage valve 31, low pressure recovery buffer container 29, gas compressor 28 etc.
Pipeline forms；Another is autonomous control subsystem, and related pressure, temperature, gas are obtained from each sensor by industrial computer 33
The data such as bulk concentration, control the automatic running of the automatic valve or equipment in whole system.
With 70MPa, exemplified by 74L carbon fiber winds aluminum liner composite hydrogen occluding container entirely, the workflow of the present invention is entered
Row explanation.
1) preparatory stage：Hydrogen displacement is carried out to all pipelines in system and part, by low-pressure gas source storage tank 9, in calm the anger
Source storage tank 8, high-pressure air source storage tank 7 are pressurized to 30MPa, 60MPa, 98MPa respectively；
2) stage is filled：Air intake valve 20 is opened, then opens air-operated solenoid valve 17, is to treat using low-pressure gas source storage tank 9
Xylometer 24 fills hydrogen；When pressure difference is less than setting value, air-operated solenoid valve 17 is closed, air-operated solenoid valve 16 is opened, switches to
Middle pressurized air source storage tank 8 is that testing container 24 fills；Air-operated solenoid valve 16 is closed when pressure difference is less than setting value, opens air-powered electromagnetic
Valve 15, switch to high-pressure air source storage tank 7 and filled for testing container 24；Until testing container 24 reaches the higher limit of test pressure,
Close air-operated solenoid valve 15 and air intake valve 20.In filling process, industrial computer according to three-level pressure sensor 10,12,13 and
For measuring the numerical value of the pressure sensor 21 of testing container 24, temperature sensor 22, keying and the liter of above-mentioned valve are controlled
The operation of pressure control device 18, pre-cooler 19.
3) pressure release recovery stage：Reversely charging valve 30 is first turned on, air-operated solenoid valve 5 is then opened, utilizes testing container 24
Pressure difference with middle pressurized air source storage tank 8 is the middle reversely charging hydrogen of pressurized air source storage tank 8；When both pressure differences are less than setting value, close pneumatic
Magnetic valve 5, opening air-operated solenoid valve 6 are the reversely charging hydrogen of low-pressure gas source storage tank 9；Until both pressure differences are less than setting value, gas is closed
Moving electromagnetic valve 6 and reversely charging valve 30；Open Drainage valve 31, the gas in testing container 24 through volume control device 27, release
Filling is to low-pressure gas source storage tank 9 after valve 31, low pressure recovery buffer container 29 and gas compressor 28, until testing container 24 drops
The as little as lower limit of test pressure.In pressure release removal process, Pneumatic booster machine 1 sucks hydrogen from low-pressure gas source storage tank 9, successively will
High-pressure air source storage tank 7, the middle ftercompction of pressurized air source storage tank 8 are to setting pressure, i.e. 98MPa and 60MPa.
4) next circulation is entered.
According to above-mentioned flow, after each test loop, high-pressure air source storage tank 7, the pressure of middle pressurized air source storage tank 8 are recovered
State when starting to circulation, so that it is guaranteed that testing container 24 can be forced into setting pressure by each circulation.In test process
In, industrial computer is according to parameter control systems such as bleed pressure sensors at different levels, the pressure sensor of testing container 24, temperature sensors
Operation, when monitoring the abnormal signal of gas concentration sensor, the halt system that will take urgent measure operation, and provide report
Alert prompting.
The present invention can effectively reduce precooling while tank atmosphere loop test as defined in international standard is smoothly completed
Energy consumption, compression energy consumption, reduce testing cost.
Claims (4)
1. a kind of the multistage of low energy consumption placed testing container from supercharging high-pressure tank atmosphere cyclic test system, including inside
Environmental cabinet；Characterized in that, the system also includes filling subsystem, pressure release recovery subsystem and autonomous control subsystem；
The filling subsystem includes Pneumatic booster machine, boosting controller, pre-cooler, and three different pressures grades
Source of the gas storage tank；The outlet line of each source of the gas storage tank is connected to boosting controller, boosting controller, pre-cooler and to be measured
Container is sequentially connected by pipeline；The wherein minimum source of the gas storage tank of pressure rating is also connected to entering for Pneumatic booster machine by pipeline
Mouthful, the outlet of Pneumatic booster machine is then connected to the higher source of the gas storage tank of pressure rating by pipeline；
The pressure release recovery subsystem includes volume control device, low pressure recovery buffer container and gas compressor；Flow controls
The end of device one is connected to the suction line of testing container, and the other end is respectively connected to low pressure by pipeline and reclaims buffer container and at least one
Individual source of the gas storage tank；Low pressure recovery buffer container is also sequentially connected gas compressor by pipeline and stored up with the minimum source of the gas of pressure rating
Tank；
The autonomous control subsystem includes industrial computer, automatic valve and sensor between each equipment in connecting pipeline,
And the sensor in environmental cabinet；Industrial computer connects each automatic valve and sensor by signal wire respectively, and industrial computer is also
Boosting controller, pre-cooler, gas compressor and pneumatic supercharger are respectively connecting to by signal wire；
The automatic valve includes：The air-operated solenoid valve being respectively arranged on the gas inlet-outlet pipeline of each source of the gas storage tank；Located at pre-
Air intake valve between device for cooling and testing container；Reversely charging valve between volume control device and source of the gas storage tank；And
Drainage valve between volume control device and low pressure recovery buffer container；
The autonomous control subsystem judges to survey according to each sensor or the operational factor of equipment transmission, control system operation
Test result；Subsystem is filled using source of the gas storage tank and the pressure difference of testing container, is realized by the keying of air intake valve to appearance to be measured
The quick filling of device；Pressure release reclaims subsystem and is pressurized the recycling for realizing recyclegas again from supercharging and compressor by reversely charging；
In filling process, sources of the gas at different levels are followed successively by testing container filling gas, in this process under the control of autonomous control subsystem
In, boosting controller controls the rate of pressure rise of testing container, the temperature of pre-cooler control filling gas；In pressure leak process,
First with the pressure difference of testing container and source of the gas storage tank realize centering pressurized air source, low-pressure gas source reversely charging, realize this two-stage source of the gas
From be pressurized；Then using gas compressor to low-pressure gas source carry out tonifying Qi, during the entire process of pressure release, Pneumatic booster machine from
Gas is sucked in low-pressure gas source, high-pressure air source, middle pressurized air source ftercompction are successively realized into being pressurized again for source of the gas to pressure is set.
2. system according to claim 1, it is characterised in that the sensor includes：Located at each source of the gas outlet pipe
Pressure sensor on line；Pressure sensor located at testing container porch；Temperature sensor inside testing container；
The pressure sensor between buffer container and gas compressor on pipeline is reclaimed located at low pressure；And the temperature in environmental cabinet
Spend sensor and gas concentration sensor.
3. system according to claim 1 or 2, it is characterised in that be equipped with list on the gateway pipeline of each source of the gas storage tank
To valve.
4. system according to claim 1 or 2, it is characterised in that on the outlet line of each source of the gas storage tank, low pressure recovery
Between buffer container and gas compressor on pipeline, safety valve is respectively equipped with.
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| CN114383992B (en) * | 2022-01-07 | 2022-10-11 | 核工业湖州勘测规划设计研究院股份有限公司 | Sparse material gas permeability measuring device and method |
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