CN106801787A - A kind of inflating gas cylinder system of use prepressing type gas-liquid displacement - Google Patents
A kind of inflating gas cylinder system of use prepressing type gas-liquid displacement Download PDFInfo
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- CN106801787A CN106801787A CN201710060231.5A CN201710060231A CN106801787A CN 106801787 A CN106801787 A CN 106801787A CN 201710060231 A CN201710060231 A CN 201710060231A CN 106801787 A CN106801787 A CN 106801787A
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- 239000007788 liquid Substances 0.000 title claims abstract description 338
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 118
- 238000011049 filling Methods 0.000 claims abstract description 179
- 238000005273 aeration Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims description 48
- 238000002347 injection Methods 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 39
- 230000003139 buffering effect Effects 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 21
- 230000033228 biological regulation Effects 0.000 claims description 9
- 230000001934 delay Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000005429 filling process Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 393
- 229910052739 hydrogen Inorganic materials 0.000 description 53
- 239000001257 hydrogen Substances 0.000 description 53
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 50
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 46
- 238000005516 engineering process Methods 0.000 description 34
- 238000013461 design Methods 0.000 description 24
- 239000003345 natural gas Substances 0.000 description 24
- 230000008569 process Effects 0.000 description 21
- 230000007306 turnover Effects 0.000 description 18
- 239000012530 fluid Substances 0.000 description 17
- 230000008859 change Effects 0.000 description 15
- 230000008901 benefit Effects 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- 238000007906 compression Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000006467 substitution reaction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 6
- 238000005984 hydrogenation reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000000872 buffer Substances 0.000 description 3
- 239000007853 buffer solution Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- HDDSHPAODJUKPD-UHFFFAOYSA-N fenbendazole Chemical compound C1=C2NC(NC(=O)OC)=NC2=CC=C1SC1=CC=CC=C1 HDDSHPAODJUKPD-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses the gas cylinder fast aeration system using the displacement of prepressing type gas-liquid, surge tank is replaced including gas bomb, filling machine, air accumulator and prepressing type gas-liquid, filling machine first controls prepressing type gas-liquid to replace surge tank and liquid therein is injected into gas bomb, then it is returned in prepressing type gas-liquid displacement surge tank with the liquid in the gas displacement gas bomb in air accumulator again；Gas inlet/outlet pipe and liquid inlet/outlet pipe are respectively equipped with gas bomb, gas inlet/outlet pipe passes in and out valve, gas rapid movable connector and is connected with filling machine by gas piping again by gas piping by gas, and filling machine is connected by gas piping with air accumulator again；Liquid inlet/outlet pipe on gas bomb passes in and out valve, liquid rapid movable connector and is connected with filling machine by liquid line again by liquid line by liquid, and filling machine is connected by liquid line with prepressing type gas-liquid displacement surge tank again.The system has simple structure, filling process by flow sequential control, and operation is simple, the features such as be not required to cooling system.
Description
Technical field
The present invention relates to gas cylinder high pressure, super-pressure quickly fills gas apparatus technical field, and in particular to one kind is using pre-
The gas cylinder high pressure of pressure type gas-liquid displacement, super-pressure fast aeration system.
Background technology
Prepressing type gas-liquid replaces the fast charging system of big flow gas uniform speed, is to overcome natural gas, hydrogen station current
The phase produced in the gas quick filling process of big flow velocity that cylinder filling high pressure, super-pressure exist during quickly filling gas
Temperature rise is filled soon to the gas of change, and influence three factors that cylinder gas fill temperature rise soon to include：[1] gas entered in gas cylinder
Temperature initially is filled, the initial charge pressure of cylinder gas reset condition when [2] enter gas cylinder, the gas that [3] enter in gas cylinder gas
Body initially fills speed, in the gas cylinder produced by three factors in the quick filling process of gas temperature rising, caused gas
Bottle safety risks and filling weight deficiency cause economic benefit problem not high.Therefore, gas cylinder safely performance, gas station peace are improved
Full production and economic results in society, art personnel based on good faith have technical problem to be solved.
Exploitation is presided over by units such as Tongji University at present, domestic state-of-the-art third generation movement hydrogenation produces station, can perform
Quick filling below 35MPa pressure；To the gas filling under 70MPa pressure, then perform and fill at a slow speed.From two above pressure
Index sees that domestic hydrogen loading technique also fills temperature rise soon in the presence of the gas for being filled filling generation soon by gas to be influenceed, it is impossible to solved
Temperature does not reach specified filling weight to the national regulation standard below 85 DEG C of gas cylinder use requirement, is just filled using traditional gas
Dress method, uses time extension system, and reduction fills speed, solves the problems, such as that temperature is too high and bring, so as to reach gas filling matter
Amount.
Find there is pre-cooler, filling pressure 70MPa in hydrogenation equipment from Japanese Narita Airport hydrogenation stations photo.
Be can be seen in certain the gas station photo for transferring the possession of loading technique design from Air Products Company, gas station uses three
Line system fills technology.
From on December 4th, 2009, the explorations in 2006 that Zhejiang University Wang Xinhua researcher presides over are oriented to problem, and " 70MPa was quiet
State chemistry hot compression high pressure ultra-pure hydrogen compress technique and device " has passed through testing for Ministry of Science and Technology's Center Of Technical Excellence organizes expert
Receive.The Department of Science and Technology in 2009 is proposed 863 problems again, develops the mounted gas cylinder of 70Mpa, and China's high-pressure hydrogen storing technology is promoted energetically
Development.
Chinese patent CN101315545 disclose a kind of hydrogenation station high-efficiency hydrogenation three-level charging-up optimizing control method and its
System, from terms of the patent open source information, it is to have installed a set of heat sink additional to solve gas gas station in filling process,
Technique is filled using big flow velocity, causes what gas produced in gas cylinder to fill problem of temperature rise soon, and increased one by operating personnel
The needle-valve of regulation filling speed, and the control system being adjusted to temperature.The program is although take various optimization methods
Fill the measure of temperature rise soon to reach control, but device structure is complicated, increased a set of heat sink and three gas-guide pipelines with
Can not storage tank and accessory, investment be big, output effect on driving birds is not good, meet demand on the time, but reach and specified fill figureofmerit.
From Chinese hydrogen energy source net 2015-6-30 reports, Nikkei BP societies message, day, Honda Company was MIRAI fuel-cell vehicles
Temperature sensor is developed on the high-pressure hydrogen storing tank of configuration, by being equipped with temperature sensor, temperature in tank can be detected, so that can
Ensuring security, while completing filling operation in 3 points of ultra-short Time, high pressure hydrogen is being filled with high-pressure hydrogen storing tank
When, gas is compressed in tank, and temperature rises, but needs control below 85 DEG C, and hydrogenation stations can be according to vehicle-mounted hydrogen storage cylinder
Temperature is hydrogenated with.Reported by this, it can be seen that the current state-of-the-art technology that fills is also perfect not to the utmost, by filling
After the preceding treatment to gas cooling, although fill and reached on the time requirement, cylinder filling temperature has reached most basic permission model
Enclose within limit high, with a certain distance from specified being filled with, according to hydrogen property, temperature often rises 5 DEG C to gas filling amount, and pressure rises
0.4Mpa, is calculated by 20 DEG C of specified filling weights of 70Mpa,
85 DEG C 70Mpa-20 DEG C 70Mpa=65 DEG C
65 DEG C/5 DEG C 0.4Mpa=5.2Mpa
70Mpa-5.2Mpa=64.8Mpa
64.8Mpa/70Mpa=92.6
Therefore, the current technology that fills is from gas cylinder ideal temperature in use, below 40 DEG C of environment temperature, extreme temperature 60
DEG C, cylinder gas 20 DEG C of 70Mpa of specified filling weight,
Precision ± 1.5% ≈ 98.95%98.95-92.6=6.35%
Also unsatisfactory gap, also room for promotion.
In summary simple data can draw following main conclusions：
1st, at present, three-wire system gas filling process equipment is used both at home and abroad；
2nd, 35Mpa pressure and cooling system is employed with the gas filling of 70Mpa；
3rd, be can be seen that more than, problem of temperature rise is filled soon for the gas produced during gas filling, currently adopted both at home and abroad
Tradition fills three Wiring technologies+temperature reduction technology mode, and big flow velocity low discharge fills technology, to be dropped in advance to filling gas
Temperature treatment, device configuration is invested larger, control complexity, is not lowered the temperature, and effect is poor, and gas filling theoretical research is also rested on
In treatment afterwards, do not have to find out reason from the source of thing, theoretical research is still recognized the place of deficiency, current
In the production of gas-fueled vehicles industry gas filling, natural gas filling station is caused because natural gas charging process is because control parameter can not
Adaptation fills parameter and is continually changing, i.e., residual compression is different in each aerating vehicle gas bomb bottle, and when initial pressure is low, temperature rise is in
Linear rise, initial pressure is high, and temperature linearly declines, and with the rising of initial pressure, is intended to zero, i.e., do not produce temperature rise,
Control parameter can not be adjusted immediately, it is produced fill temperature rise soon and linearly change to produce filling weight in opposite directions fill not enough or fill
Excessive unmanageable problem, is that this natural gas filling station is difficult to carry out in the national permanent gas of execution fills codes and standards,
And thus result in and indicated in GB14194-2006 editions the gas filling that this standard is not suitable for vehicle-mounted compressed natural gas gas bombs
Embarrassing borders, and thus result in the more chaotic situation of gas filling link in current domestic natural gas automobile industry.Thus existing gas
The big flow velocity of body quickly fills technology and requires there be certain gap away from commercialization.
The content of the invention
It is an object of the present invention to overcome defect present in prior art, there is provided a kind of result for being related to gas cylinder designs,
The design and manufacturing technology scheme of filling machine, the fast aeration system replaced using prepressing type gas-liquid, makes gas cylinder in high pressure, super-pressure
With big flow, gas-liquid substitute mode during gas fast aeration, gas cylinder initial pressure is improved, suppress gas generation and fill temperature rise soon
Technological innovation method, substitution produces the Choking phenomenon to cause temperature rise because filling technique using big flow velocity, influences gas cylinder at present
Safe handling and economic benefit it is not high, so as to reach simple structure, filling process by flow sequential control, operation is simple, no
Cooling system is needed, is not required to carry out temperature the control device of complexity, realize minimum, the top-quality goal of the invention of investment.
To achieve the above object, the technical scheme is that the gas cylinder for designing a kind of displacement of use prepressing type gas-liquid is quick
Inflation system, the system includes gas bomb or gas bomb group, filling machine, air accumulator and prepressing type gas-liquid displacement surge tank, plus
Liquid therein is injected into gas bomb by mechanism of qi follow procedure control prepressing type gas-liquid displacement surge tank in advance, and air accumulator is then used again
In gas displacement gas bomb in liquid, be returned to prepressing type gas-liquid displacement surge tank in；Set respectively on gas bomb
There are gas inlet/outlet pipe and liquid inlet/outlet pipe, gas inlet/outlet pipe passes in and out valve, gas Fast Activities and connects by gas piping by gas
Head is connected by gas piping with filling machine again, and filling machine is connected by gas piping with air accumulator again；Liquid turnover on gas bomb
Pipe passes in and out valve, liquid rapid movable connector and is connected with filling machine by liquid line again by liquid line by liquid, filling machine
It is connected with prepressing type gas-liquid displacement surge tank by liquid line again.
In order to simplify the structure of cylinder filling system, it is adaptable to the cylinder filling gas in commercial car or car, use
Gas standard fueling station fill technique and filling equipment is filled, preferred technical scheme is that the gas bomb is provided with one
Individual, gas bomb uses horizontal placement, and wherein liquid inlet/outlet pipe is arranged on the bottom of gas bomb, and gas inlet/outlet pipe is arranged on gas bomb
Middle part or top.
Balance is kept for the ease of the pressure between regulation air accumulator and prepressing type gas-liquid displacement surge tank, further preferably
Technical scheme be that the liaison tube that connection air accumulator and prepressing type gas-liquid replace surge tank is provided with the filling machine, contact
Pipe is serially connected with the first pressure regulator valve and first pressure sensor.
For the ease of the monitoring to gas replenishment process, control, while be easy to carry out effective metering to aeration quantity, it is further excellent
The technical scheme of choosing also has, be serially connected with the gas piping in the filling machine second pressure sensor, the first magnetic valve and
First flowmeter, is serially connected with the 3rd pressure sensor and the second magnetic valve on the liquid line in the filling machine, in series winding
The 3rd pressure sensor and the second magnetic valve two ends and be connected with the throttle expansion valve and the 3rd magnetic valve of mutual concatenation.
For the ease of to injection or liquid make-up in prepressing type gas-liquid displacement surge tank, further preferred technical scheme is also
Have, the liquid line in the filling machine also and is connected with the first liquid injection pipe, and the first liquid-filling valve is serially connected with the first liquid injection pipe,
On one liquid injection pipe and the liquid line being connected between the second magnetic valve and prepressing type gas-liquid displacement surge tank.
Process equipment for the ease of being used in natural gas transportation car gas filling mother station is configured, and preferred technical scheme is also
Have, the gas bomb is provided with several, several gas bomb planes are placed, and the gas inlet/outlet pipe and liquid of several gas bombs enter
Outlet pipe is separately positioned on the upper and lower part of gas bomb and connection in series with each other.
Process equipment for the ease of being used in natural gas transportation car gas filling mother station is configured, further preferred technology
Scheme also has, and the prepressing type gas-liquid displacement surge tank includes prepressing type gas-liquid displacement high-pressure buffering pot and prepressing type gas-liquid is put
Middle pressure surge tank is changed, the first contact of connection air accumulator and prepressing type gas-liquid displacement high-pressure buffering pot is provided with the filling machine
Pipe, and the second liaison tube with pressure surge tank in the displacement of prepressing type gas-liquid, are serially connected with the second pressure regulator valve on the first liaison tube
With the 4th pressure sensor, the 3rd pressure regulator valve and the 5th pressure sensor are serially connected with the second liaison tube, in the prepressing type
The 3rd liaison tube is also associated between pressure surge tank in gas-liquid displacement high-pressure buffering pot and the displacement of prepressing type gas-liquid, in the 3rd contact
Pressure adjustment relief valve, the 4th magnetic valve and the 6th pressure sensor are in series with pipe.
For the ease of the monitoring to gas replenishment process, control, while be easy to carry out effective metering to aeration quantity, it is further excellent
The technical scheme of choosing also has, be serially connected with the gas piping in the filling machine the 7th pressure sensor, the 5th magnetic valve and
Second flowmeter, the liquid line in the filling machine is divided into two-way, respectively leads to precompressed by liquid rapid movable connector
Formula gas-liquid replaces the first liquid pipeline of high-pressure buffering pot, and is led in the displacement of prepressing type gas-liquid by liquid rapid movable connector
The second liquid pipeline of surge tank is pressed, the 6th magnetic valve is serially connected with first liquid pipeline, concatenated on second liquid pipeline
There are check valve and the 7th magnetic valve.
For the ease of to injection or liquid make-up in prepressing type gas-liquid displacement surge tank, further preferred technical scheme is also
Have, also being respectively paralleled on the first liaison tube and the second liaison tube in the filling machine has the second liquid injection pipe and the 3rd fluid injection
Pipe, is serially connected with the second liquid-filling valve and the 3rd liquid-filling valve respectively on the second liquid injection pipe and the 3rd liquid injection pipe, the second liquid injection pipe is simultaneously connected in
On the first liaison tube between 4th pressure sensor and prepressing type gas-liquid displacement high-pressure buffering pot, the 3rd liquid injection pipe is simultaneously connected in the
Pressed in five pressure sensors and the displacement of prepressing type gas-liquid on the second liaison tube between surge tank.
In order to ensure the safety and property of system, further preferred technical scheme also has, in the air accumulator, prepressing type gas
Pressed in liquid displacement surge tank, prepressing type gas-liquid displacement high-pressure buffering pot and the displacement of prepressing type gas-liquid and the is connected on surge tank
One safety valve, the second safety valve, the 3rd safety valve and the 4th safety valve.
The advantages of the present invention are：Safety, standpoint of efficiency of the system from gas filling industry, for
The gas that the big flow velocity used by commercialization demand occurred in current gas filling industry occurs after filling technique soon fills temperature soon
The problem of liter, fills after process equipment function carried out network analysis, it is proposed that initially fill pressure to improve cylinder gas to tradition
Power, big flow gas-liquid displacement, the New Type Double-line gas at normal temperature that gas-liquid passes in and out gas bomb respectively fills the technical scheme of mode.To press down
Gas processed fills the technical measures of temperature rise generation soon, and substitution produces Choking phenomenon, causes because filling technique using big flow velocity at present
Fast inflatable body temperature rise, influence gas bomb is using safety and fills the three-wire system+refrigeration cool-down of quality and fills mode, and the skill for proposing
Art solution.The technical program is set out with the design angle for not producing or producing less the temperature effect of adiabatic throttling, so that root
In sheet solve the big flow velocity of gas fill technique generation fill problem of temperature rise soon, creatively propose and delayed by new prepressing type gas-liquid
The fluid path precompressed buffer system of tank composition, the vehicle-mounted gas storage bottle structure that gas-liquid two-way is passed in and out respectively, the gas circuit of simple structure is rushed to fill
Dress system, calculation of price system and sequence control system is filled, the prepressing type gas-liquid displacement big flow gas uniform speed of composition fills soon
System, solves gas storage, gas transport, a gas cylinder of gas filling link in the utilization of new energy resources such as natural gas, hydrogen
The safe handling important problem not high with filling weight deficiency economic benefit.Its application will improve current China's natural gas automobile and use
The economic benefit at family, the economic benefit of natural gas filling station, and then to China's new-energy automobile industry, gas-fueled vehicles industry,
And in following hydrogen energy source automobile industry gas storage, gas transport etc. in gas filling link, gas filling device fabrication, plus
Gas station is built, and gas station fills the technology competition advantage of business.The huge industrial economy benefit of generation and the society of energy-saving and emission-reduction
Benefit.China is improved in the technology contest of new energy field, a favourable commanding elevation is occupied, promotes new-energy automobile industry
Technological progress play extremely long-pending important function.
The raising gas cylinder that the present invention is used initially fills gas pressure, (during natural gas filling station 20Mpa charge pressures, its
Initial charge pressure is 12Mpa-15Mpa) control gas to fill the gas filling system of temperature rise soon, can be in current natural gas
Stand and arbitrarily verify, or be verified under conditions of hydrogen station does not use refrigeration cool-down.
Based on the understanding that technical know-how is quickly filled to gas, proposition is solved in the small flow velocity gas filling mode of big flow
The gas of the big flow velocity of current low discharge quickly fills theory, and the section that gas is produced under big flow velocity in gas cylinder is solved from source
The gas occurred in stream, friction, compression process fills temperature rise problem soon, and designs prepressing type gas-liquid displacement big flow gas therefrom
The at the uniform velocity fast charging system of body, in cylinder gas filling process, to improve the initial charge pressure of gas cylinder, it is small initially to fill pressure difference for it,
Reach and at the uniform velocity fill, do not produce or produce the phenomenons such as throttling, friction, compression less, so as to realize that it is small that gas fills temperature rise soon, realize normal
Gas under temperature is quickly filled, and the flow passed in and out respectively with single line gas-liquid carries out the technology mode production of gas filling, so as to reach
Flow sequential control is pressed to simple structure, filling process, operation is simple, is not required to cooling system, be not required to carry out temperature complexity
Control device, realizes minimum, the top-quality design object of investment.
Brief description of the drawings
Fig. 1 is one of structural representation of gas bomb in the inflating gas cylinder system using the displacement of prepressing type gas-liquid of the invention；
Fig. 2 is the present invention using two of the structural representation of gas bomb in the inflating gas cylinder system of prepressing type gas-liquid displacement；
Fig. 3 is one of system schematic of inflating gas cylinder system that the present invention is replaced using prepressing type gas-liquid；
Fig. 4 is the present invention using the two of the system schematic of the inflating gas cylinder system of prepressing type gas-liquid displacement.
In figure：1st, gas bomb；1.1st, gas inlet/outlet pipe；1.2nd, liquid inlet/outlet pipe；2nd, filling machine；3rd, air accumulator；4th, precompressed
Formula gas-liquid replaces surge tank；4.1st, prepressing type gas-liquid displacement high-pressure buffering pot；4.2nd, surge tank is pressed in the displacement of prepressing type gas-liquid；5、
Gas piping；6th, gas turnover valve；7th, gas rapid movable connector；8th, liquid line；9th, liquid turnover valve；10th, liquid
Rapid movable connector；11st, liaison tube；12nd, the first pressure regulator valve；13rd, first pressure sensor；14th, second pressure sensor；15、
First magnetic valve；16th, first flowmeter；17th, the 3rd pressure sensor；18th, the second magnetic valve；19th, throttle expansion valve；20th,
Three magnetic valves；21st, the first liquid injection pipe；22nd, the first liquid-filling valve；23rd, the first liaison tube；24th, the second liaison tube；25th, the second pressure regulation
Valve；26th, the 4th pressure sensor；27th, the 3rd pressure regulator valve；28th, the 5th pressure sensor；29th, the 3rd liaison tube；30th, pressure regulation is overflow
Stream valve；31st, the 4th magnetic valve；32nd, the 6th pressure sensor；33rd, the 7th pressure sensor；34th, the 5th magnetic valve；35th, second
Flowmeter；36th, first liquid pipeline；37th, second liquid pipeline；38th, the 6th magnetic valve；39th, check valve；40th, the 7th magnetic valve；
41st, the second liquid injection pipe；24th, the 3rd liquid injection pipe；43rd, the second liquid-filling valve；44th, the 3rd liquid-filling valve；45th, the first safety valve；46th, second
Safety valve；47th, the 3rd safety valve；48th, the 4th safety valve.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is further described.Following examples are only
For clearly illustrating technical scheme, and can not be limited the scope of the invention with this.
As shown in figures 1-4, the present invention is a kind of gas cylinder fast aeration system of use prepressing type gas-liquid displacement, the system
System includes gas bomb 1 or gas cylinders group, filling machine 2, air accumulator 3 and prepressing type gas-liquid displacement surge tank 4, and filling machine 2 is used to press journey
Be injected into liquid therein in gas bomb 1 in advance by sequence control prepressing type gas-liquid displacement surge tank 4, improves gas bomb or gas bomb
The initial charge pressure of gas of group, is then returned to pre- with the liquid in the gas displacement gas bomb 1 in air accumulator 3 again
In pressure type gas-liquid displacement surge tank 4；Gas inlet/outlet pipe 1.1 and liquid inlet/outlet pipe 1.2 are respectively equipped with gas bomb 1, gas enters
Outlet pipe 1.1 passes in and out valve 6, gas rapid movable connector 7 and is connected with filling machine 2 by gas piping 5 again by gas piping 5 by gas
Connect, filling machine is connected by gas piping 5 with air accumulator 3 again；Liquid inlet/outlet pipe 1.2 on gas bomb 1 passes through liquid by liquid line 8
Body turnover valve 9, liquid rapid movable connector 10 are connected by liquid line 1.2 with filling machine 2 again, and filling machine 2 is again by liquid line
Road 8 is connected with prepressing type gas-liquid displacement surge tank 4.
As shown in Figure 1, 2, in order to simplify the structure of the charging system of gas bomb 1, it is adaptable to the gas in commercial car or car
Bottle fill gas, using gas standard fueling station fill technique and filling equipment is filled, currently preferred embodiment party
Case is that the gas bomb 1 is provided with one, and gas bomb 1 uses horizontal placement, wherein liquid inlet/outlet pipe 1.2 is arranged on into gas bomb 1
Bottom, gas inlet/outlet pipe 1.1 is arranged on the middle part or top of gas bomb.
As shown in figure 3, keeping flat for the ease of the pressure between regulation air accumulator 3 and prepressing type gas-liquid displacement surge tank 4
Weighing apparatus, further preferred embodiment of the present invention is to be provided with connection air accumulator in the filling machine 2 to be put with 3 prepressing type gas-liquids
The liaison tube 11 of surge tank 4 is changed, liaison tube 11 is serially connected with the first pressure regulator valve 12 and first pressure sensor 13.
As shown in figure 3, for the ease of the monitoring to gas replenishment process, control, while being easy to carry out effective meter to aeration quantity
Amount, further preferred embodiment of the present invention also has, and second pressure is serially connected with the gas piping 5 in the filling machine 2
Sensor 14, the first magnetic valve 15 and first flowmeter 16, the 3rd pressure is serially connected with the liquid line 8 in the filling machine 2
The magnetic valve 18 of force snesor 17 and second, series winding the 3rd pressure sensor 17 and the second magnetic valve 18 two ends and be connected with phase
The magnetic valve 20 of throttle expansion valve 19 and the 3rd for mutually concatenating, throttle expansion valve 19 is used to control initial inflation process stage gas bomb 1
Air pressure.
As shown in figure 3, for the ease of to injection or liquid make-up in prepressing type gas-liquid displacement surge tank, the present invention is further
Preferred embodiment also has, and is gone back on the liquid line 8 in the filling machine 2 and is connected with the first liquid injection pipe 21, in the first note
The first liquid-filling valve 22 is serially connected with liquid pipe 21, the first liquid injection pipe 21 is simultaneously connected in the second magnetic valve 18 with prepressing type gas-liquid displacement buffering
On liquid line 8 between tank 4.
As shown in figure 3, vehicle-mounted gas bomb 1 is respectively equipped with gas turnover pipeline 1.1 and liquid turnover pipeline 1.2, by with car
Liquid turnover valve 9, the liquid rapid movable connector 10 on the liquid line 8 of gas bomb 1 are carried, and in filling machine, the 3rd pressure
Sensor 17, the second magnetic valve 18 and prepressing type gas-liquid the displacement composition gas-liquid two-way of surge tank 4 pass in and out prepressing type gas-liquid and put respectively
Change buffer system configuration【One】.By the manual pressure regulating valve 12 on contact pipeline 11, first pressure sensor 13, prepressing type gas-liquid is put
Change surge tank 4, air accumulator 3, and the contact composition fluid path pressure manual adjustment system configuration of pipeline 11【Two】.By with vehicle-mounted gas bomb
Gas turnover valve 6 on 1 gas piping 5, the first flowmeter 16 between gas rapid movable connector 7 and air accumulator 3, first
Magnetic valve 15, the composition gas circuit gas filling system of second pressure sensor 14 is matched somebody with somebody【Three】.The gas being made up of first flowmeter 16 etc.
Body measures settlement system and by the first magnetic valve 15, second pressure sensor 14, first flowmeter 16, fixed along setting up by work
The composition prepressing type gas-liquid substitution gas of filling machine 2 of control system composition fill control system configuration【Four】.Safety valve 45,46,
And liquid line 8, the first liquid-filling valve composition prepressing type gas-liquid substitution gas fill process equipment configuration.Above for commercial vehicle multiplies
The standard filling gas station equipment configuration of gas filling is carried out with car.
As shown in figure 4, being configured for the ease of being used in the process equipment of natural gas transportation car gas filling mother station, the present invention
Preferred embodiment also has, and the gas bomb 1 is provided with several, and several gas bombs 1 are placed vertically, several gas bombs 1
Gas inlet/outlet pipe 1.1 and liquid inlet/outlet pipe 1.2 be separately positioned on the upper and lower part of gas bomb 1 and company in series with each other
Connect.
As shown in figure 4, being configured for the ease of being used in the process equipment of natural gas transportation car gas filling mother station, the present invention
Further preferred embodiment also has, and the prepressing type gas-liquid displacement surge tank 4 includes prepressing type gas-liquid displacement high pressure and delays
Rush in tank 4.1 and the displacement of prepressing type gas-liquid and press surge tank 4.2, connection air accumulator 3 and prepressing type gas are provided with the filling machine 2
Liquid replaces the first liaison tube 23 of high-pressure buffering pot 4.1, and the second contact with pressure surge tank 4.2 in the displacement of prepressing type gas-liquid
Pipe 24, is serially connected with the second pressure regulator valve 25 and the 4th pressure sensor 26 on the first liaison tube 23, is gone here and there on the second liaison tube 24
The 3rd pressure regulator valve 27 and the 5th pressure sensor 28 are connected to, high-pressure buffering pot 4.1 and prepressing type are replaced in the prepressing type gas-liquid
The 3rd liaison tube 29 is also associated between pressure surge tank 4.2 in gas-liquid displacement, pressure-regulating overflow is in series with the 3rd liaison tube 29
Valve 30, the 4th magnetic valve 31 and the 6th pressure sensor 32.
As shown in figure 4, for the ease of the monitoring to gas replenishment process, control, while being easy to carry out effective meter to aeration quantity
Amount, further preferred embodiment of the present invention also has, and the 7th pressure is serially connected with the gas piping 5 in the filling machine 2
Sensor 33, the 5th magnetic valve 34 and second flowmeter 35,8 points of the liquid line in the filling machine 3 is two-way, respectively
The first liquid pipeline 36 that prepressing type gas-liquid replaces high-pressure buffering pot 4.1 is led to by liquid rapid movable connector 10, and by liquid
Body rapid movable connector 10 leads in the displacement of prepressing type gas-liquid the second liquid pipeline 37 for pressing surge tank 4.2, in first liquid pipe
The 6th magnetic valve 38 is serially connected with road 36, the magnetic valve 40 of check valve 39 and the 7th is serially connected with second liquid pipeline 37.
As shown in figure 4, for the ease of to injection or liquid make-up in prepressing type gas-liquid displacement surge tank, the present invention is further
Preferred embodiment also has, and also being respectively paralleled on the first liaison tube 23 in the filling machine 2 and the second liaison tube 24 has
Second liquid injection pipe 41 and the 3rd liquid injection pipe 42, the second liquid-filling valve 43 is serially connected with the second liquid injection pipe 41 and the 3rd liquid injection pipe 42 respectively
With the 3rd liquid-filling valve 44, the second liquid injection pipe 41 is simultaneously connected in the 4th pressure sensor 26 and prepressing type gas-liquid replaces high-pressure buffering pot
On the first liaison tube 23 between 4.1, the 3rd liquid injection pipe 42 is simultaneously connected in the 5th pressure sensor 28 and the displacement of prepressing type gas-liquid
On the second liaison tube 23 between pressure surge tank 4.2.
As shown in Figure 3,4, in order to ensure the safety and property of system, further preferred embodiment of the present invention also has,
The air accumulator 3, prepressing type gas-liquid displacement surge tank 4, prepressing type gas-liquid displacement high-pressure buffering pot 4.1 and the displacement of prepressing type gas-liquid
The first safety valve 45, the second safety valve 46, the 3rd safety valve and 47 the 4th safety valves are connected on middle pressure surge tank 4.2
48。
As shown in figure 4, vehicle-mounted gas bomb 1 is respectively equipped with gas turnover pipeline 1.1 and liquid turnover pipeline 1.2, through second
Middle pressure check valve 39 on liquid line 37, the 7th magnetic valve 40 presses surge tank 4.2 in the displacement of prepressing type gas-liquid, constitutes fluid path
The middle unidirectional liquid injection system device configuration of pressure【One】.Gas turnover pipeline 1.1 and liquid inlet/outlet pipe are respectively equipped with by vehicle-mounted gas bomb 1
Road 1.2, through on first liquid pipeline 36, the 6th magnetic valve 38, prepressing type gas-liquid displacement high-pressure buffering pot 4.1 constitutes gas-liquid two
Road passes in and out the fluid path device configuration that high-pressure gas-liquid replaces buffer system respectively【Two】.Surge tank is pressed in being replaced by prepressing type gas-liquid
4.2, with prepressing type gas-liquid displacement high-pressure buffering pot 4.1 between the 3rd liaison tube and pressure adjustment relief valve 30, the 4th magnetic valve 31,
6th pressure sensor 32 constitutes height, in the calm the anger pressure of liquid displacement buffering Cans be segmented controllable fluid path circulatory system device configuration
【Three】.By gas storage tank 3, prepressing type gas-liquid displacement high-pressure buffering pot 4.1 presses surge tank 4.2 in the displacement of prepressing type gas-liquid, it
Between the first liaison tube 23 on be serially connected with the second pressure regulator valve 25 and the 4th pressure sensor 26, and the second liaison tube 24 and be serially connected with
Second pressure regulator valve 27 and the 4th pressure sensor 28 constitute height, middle pressure, the air pressure adjustment system configuration of two tanks【Four】.Stored up by gas
Gas tank 3, vehicle-mounted gas-liquid two-way passes in and out tandem gas bomb group 1 respectively, between gas piping 5 and pipeline on second flowmeter
35, the 5th magnetic valve 34, the 7th pressure sensor 33, gas circuit rapid movable connector 7 and gas turnover valve 6 constitute gas circuit gas
Fill the configuration of Ji Liang Jie Suan system equipments【Five】.By installed in gas storage tank 3, high-pressure type prepressing type gas-liquid displacement high-pressure buffer
The safety valve composition prepressing type gas-liquid substitution gas charging system on the top of surge tank 4.2 is pressed in tank 4.1, the displacement of prepressing type gas-liquid
Safe-guard system is configured【Six】.By the above【One】~【Six】One gas bomb group of each subsystem composition reaches gas-liquid and passes in and out respectively
Function, prepressing type gas-liquid displacement buffering in, the tank gas-liquid volume fraction of high pressure two is adjustable, pressure controllable, liquid gas bomb group with
In calm the anger unidirectional fluid injection, liquid two-way turnover between gas bomb group and gas-liquid displacement high-pressure buffering pot between liquid displacement surge tank
Reach liquid circulation and high-pressure type fluid path gas-liquid displacement surge tank reaches volume gas-liquid ratio design function effect, produce gas cylinder to fill
Dress gas, it is high to fill initial pressure, produces temperature rise small, gas filling Stress control, gas dosing clearing, by job order by plus
Mechanism of qi carries out sequential control.Composition prepressing type gas-liquid substitution gas fill refueling mother station system.
Prepressing type gas-liquid substitution gas fill technical work principle, during gas filling, in advance to gas storage 1 bottle apply
Plus certain initial charge pressure, gas is flowed into gas cylinder 1 in the way of the small flow velocity of big flow gas cylinder 1 is outer, in gas cylinder 1 with
Do not produce or produce throttling, friction, compression phenomena less, do not produce or produce the gas produced by Joule-Thomson effect to exist less
Gas in gas cylinder 1 fills temperature rise for purpose of design starting point soon, by the structure passed in and out respectively to the gas-liquid two-way of vehicle-mounted gas bomb 1
Design, relevant configuration is shown in accompanying drawing 1,2.
Prepressing type gas-liquid displacement surge tank 4 is designed with the gas-liquid volume fraction of vapour-liquid two-way turnover gas cylinder, by car
The structure design and prepressing type gas-liquid that load gas bomb 1 is passed in and out respectively using gas-liquid two-way put surge tank 4, the design of gas-liquid volume fraction
The functional effect of generation, mode is filled with big flow, small flow velocity, during to gas filling, is injected in gas cylinder 1 in advance
Liquid, makes gas in gas cylinder, liquid produce certain precompression, just improve the initial charge pressure of gas cylinder, just controls throttling
The generation of phenomenon, just controls and fills temperature rise soon, at utmost reduces the generation of Choking phenomenon, has also just prevented to fill temperature rise soon
Basis is produced, purpose of design has also just been reached.
For gas-fueled vehicles, hydrogen so expects that battery car is required the difference of liquid, using different liquid, such as natural gas
- 40 DEG C are less than to water content requirement, the requirement of hydrogen is -60 DEG C, and other standards do not have no hydrogen.
The structure design principle that vehicle-mounted gas-liquid two-way passes in and out gas bomb 1 respectively is that, using gas-liquid proportion relation, it is with gas
Low side [note inside bottle：Gas cylinder is horizontal installation], 1 bend pipe mouthful of lower end in gas cylinder is extended to the bottleneck of mounted gas cylinder 1,
Used as 1 import and export of liquid, when gas circuit fills gas, liquid reaches prepressing type gas-liquid displacement surge tank 4 along fluid path backflow,
Can be drained to require substantially with the liquid of vehicle-mounted gas bomb 1, passing in and out gas cylinder 1 respectively from gas-liquid two-way carries out gas-liquid displacement,
The purpose of design also just reaches.
The design principle that prepressing type gas-liquid displacement big flow gas uniform speed fills surge tank soon is, using gas and fluid density
Greatest differences, mobility, the gas between container and container, fluid pressure differential carry out space energy conversion.Using container
The pressure difference that vessel volume change is produced between container forms the otherness of pressure lifting change.It is gentle according to above container features
The volume fraction that the prepressing type gas-liquid displacement of liquid property design fills the gas-liquid of gas buffer tank 4 is calculated, and designs precompressed
Formula gas-liquid substitution gas fill the volumetric ratio of surge tank 4 and vehicle-mounted gas bomb 1, and 20MPa presses 8：1,35MPa presses 12：1 [can lead to
Cross injection liquid to carry out ratio fine setting].According to above-mentioned principle, for the change of vehicle-mounted gas bomb volume size, using correlation
Technical measures, make its volume fraction 3：1~12：Different Proportionality design adjustment are carried out between 1.Make gas filling temperature rise essence
At 3 DEG C~10 DEG C, specified filling weight is between 95%~98% for degree control.Initial pressure is filled for mounted gas cylinder to be filled 1
Difference is big, pressure is low, big problem is impacted in fluid injection, is constituted greatly using by flow restriction control valve 19, the 3rd magnetic valve, the D roads of large-diameter pipe three
Road decompression liquid injection system is close in the prepressing type gas-liquid displacement of flow low flow velocity.
Prepressing type gas-liquid replaces the embodiment of the fast charging system of big flow gas uniform speed：
Embodiment 1：
If the volume of vehicle-mounted gas bomb 1 is 10L, prepressing type gas-liquid displacement surge tank 4 volume is 80L, when to prepressing type gas-liquid
The displacement injection 10L liquid of surge tank 8, while injecting 20MPa gas pressures, volume gas liquid ratio is changed into 7：1, pressure 20MPa, precompressed
The gas capacity of formula gas-liquid displacement surge tank 4 is changed into 0.07L × 200=143, when liquid is injected vehicle-mounted gas bomb 1, precompressed
Gas-liquid replaces surge tank 4, and volume becomes big, is changed into 8 cubes of pressure and drops to 14/0.08L=17.5MPa now prepressing type gas-liquid is delayed
Rush the pressure of tank 4 and be all 17.5MPa [notes with the pressure of vehicle-mounted gas bomb 1：This pressure is the initial filling pressure of vehicle-mounted gas bomb 1.
Fill process temperature rise numerical value numerical simulation study soon according to natural gas cylinder, initial pressure is found to filling temperature rise influence curve figure soon
Influence of the gas filling initial pressure of 17.5MPa to temperature rise below 5 DEG C, and as the raising gas of initial pressure fills temperature soon
Rise and be intended to zero], when air accumulator 3 fills the big 17.5MPa of gas pressure to vehicle-mounted gas bomb 1, liquid is back to prepressing type gas
Liquid is drained cars by the pressurized tank of vehicle-mounted gas bomb 1 when liquid displacement surge tank 4 reaches setting highest specified charge pressure 20MPa
Carry the gassy completion work of gas bomb 1.
Embodiment 2
If vehicle-mounted gas bomb water capacity is 18m, the water capacity of prepressing type gas-liquid displacement 20MPa high-pressure buffering pots 4.1 is 18m,
The water capacity 36m of surge tank 4.2, two tank gas liquid ratios, gas is pressed to account for 2/3 in precompressed gas-liquid displacement 4MPa, liquid accounts for 1/3 and injected when to two tanks
During liquid to setting value, two tank water capacity water injection rates are：
High-pressure buffering pot water capacity is 18m/3=6m3
Middle pressure surge tank water capacity is 36m/3=24m3
When being the gas of 20MPa to the injection gas pressure of high-pressure buffering pot 4.1, the gas flow of high-pressure buffering pot 4.1 is
18m × 2/3=12m312m × 20MP=2400m3
When the gas of 4MPa pressure is injected to middle pressure surge tank 4.2, middle pressure surge tank gas capacity is
36m × 2/3=24m324m × 4MPa=960m3
Central, first backward volume is 18m to high-pressure buffering pot in order3Vehicle-mounted gas bomb injection setting value 12m+6m=
18m3Waterwheel carries middle high-pressure when gas bomb is filled and buffers the change of 4.1 volumes greatly, and capacity does not have change, pressure to press surge tank in declining 4MPa
Pressure drops to 960m ÷ 36m=2.66MPa；The pressure of 20MPa high-pressure buffering pots 4.1 drops to 2400m ÷ 18m=13.3MPa；
Calculated more than, when each parameter reaches setting value, vehicle-mounted gas bomb it is minimum fill initial pressure 13.3MPa and
Vehicle-mounted gas bomb residual compression 2MPa, adds up to more than 15MPa, at the beginning of can producing the gas filling of more than 15MPa to vehicle-mounted gas bomb
Beginning precompression, and farthest suppress the generation that gas fills temperature rise soon.
The passenger car standard gas station of embodiment 1 filling before preparation and fill operation
Fluid injection is ready to pass through the first liquid-filling valve 22 on the first liquid injection pipe, is injected to the slow displacement surge tank 4 of prepressing type gas-liquid
The first liquid-filling valve 22 is closed after reaching quantity by the liquid of design proportion.
Set the finally filling pressure of vehicle-mounted gas bomb 1
By by the pressure first sensor 13 on liaison tube 11 between prepressing type gas-liquid displacement surge tank 4 and air accumulator 3
Manual pressure regulating valve 12 composition pressure adjustment system, open manual pressure regulating valve 12 to prepressing type gas-liquid replace the gas of surge tank 4 by
After air accumulator 3 allows specified filling pressure 20MPa to the highest of the prepressing type gas-liquid displacement gas injection of surge tank 4 to vehicle-mounted gas bomb 1
Close manual pressure regulating valve 12.[note the gas of this air pressure in prepressing type gas-liquid displacement surge tank 4 no consumption for each waits to fill
The new-type gas bomb 1 that the vehicle-mounted gas-liquid two-way of gas is passed in and out respectively applies precompression], press behaviour when filling machine 2 after work starts is filled
Make sequential control, now liquid replaces surge tank 4 to the diffluence of vehicle-mounted gas bomb 1 from prepressing type gas-liquid, and pressure is begun to decline to institute
The ratio 7/1 of setting, pressure 17.5MPa pressure balances are initial when this balance pressure is vehicle-mounted gas bomb filling gas
Pressure.The numerical value of setting is now measured by second pressure sensor 14, the first magnetic valve 15 is opened, first flowmeter 16 starts meter
Amount, settlement system is run to filling terminating, and gas passes in and out valve 6, gas rapid movable connector 7 to vehicle-mounted gas by gas
When filling gas to the second pressure sensor 14 of bottle 1 measures setting highest permission rated value, the first magnetic valve 15 is closed.Therebetween by
Metering settlement system, the filling machine 2 of aerating control system composition is controlled gas and has filled by the job order of setting
Into.
Gas bomb carries out gas filling standard station A operating processes：
Operating personnel are connected aerating hose coupling with vehicle-mounted gas bomb interface, gas-liquid two-way gas turnover valve 6,
Gas rapid movable connector 7, liquid turnover valve 9, liquid rapid movable connector 10, it is to be filled.
Now filling machine 2, according to setting program, automatically opens up the second magnetic valve of precompressed fluid path 18 to start gas filling program,
Prepressing type gas-liquid is replaced surge tank 4 and is filled with liquid to gas-liquid pressure between two Bottle ＆ Can Isosorbide-5-Nitraes and balances to waiting to fill vehicle-mounted gas bomb 1, this
When the precompressed gas-liquid displacement pressure of surge tank 4 be down to the interval pressure for closing symbol gas filling requirement [pressure can be by adjustment
Gas-liquid ratio is realized in tank], after now measuring balance pressure by first pressure sensor 13, throttle expansion valve 10, the first electromagnetism
Valve 15 is opened, and gas circuit fills gas, and first flowmeter 16 and settlement system work, and now gas circuit air pressure is more than fluid path pressure, shape
Into pressure difference, the liquid that vehicle-mounted gas-liquid two-way is passed in and out in gas bomb 1 respectively pushes back precompressed gas-liquid displacement surge tank from gas bomb bottom
4, when the pressure of gas-liquid two-way reaches setting value to be balanced, the first magnetic valve 15, the second magnetic valve 18 are closed, manual-lock gas cylinder
The valve of 1 gas-liquid two, gas turnover valve 6, liquid turnover valve 9, transfers to hose coupling, plugs the safety pin of gas cylinder 1, gas-liquid flexible pipe
And air filling gun playback, gas filling work completion.
Preparation and operation before the filling gas filling mother station filling of the bulk transport gas bomb group of embodiment 2：
Fluid injection prepares, and replaces middle high-pressure to prepressing type gas-liquid by the liquid-filling valve 43,44 on first, second liquid injection pipe and delays
Rush after the injection of tank 4.1,4.2 reaches quantity by the liquid of design proportion and close liquid-filling valve 43,44, set the final of gas bomb group 1
Charge pressure is allowed, by by the liaison tube between prepressing type gas-liquid displacement middle high-pressure surge tank 4.1,4.2 and air accumulator 3
Pressure sensor 26,28 manual pressure regulating valves 25,27 decomposition pressures adjustment system.Manual pressure regulating valve 25,27 is opened, by air accumulator
3 to prepressing type gas-liquid displacement middle high-pressure surge tank 4.1,4.2 be injected separately into set constant-pressure ﹝ natural gas charging pressure 4Mpa,
20Mpa), (25Mpa, 35Mpa), (55Mpa, 70Mpa) to reach that close manual pressure regulating valve 25,27 after corresponding pressure stand-by.﹝ is noted
The pressed gas of this air pressure in prepressing type gas-liquid displacement middle high-pressure surge tank 4.1,4.2 Ji consumption for each to be to be filled
New-type gas bomb set of segmentation that vehicle-mounted gas-liquid two-way is passed in and out respectively applies Yu Ya Li ﹞ after filling work startup, and filling machine 2 is by setting
Meter operation order is automatically controlled.Now liquid is segmented to vehicle-mounted gas storage from prepressing type gas-liquid displacement middle high-pressure surge tank 4.1,4.2
Bottle 1 diffluence of group, when the central pressure of pressure surge tank 4.1 drops to setting value lower bound, magnetic valve 40 is closed, and magnetic valve 38 opens high pressure
Surge tank 4.2 continues to inject liquid to the pressure of pressure pan 4.2 and the vehicle-mounted gas bomb group 1 pressure flat Red of power to vehicle-mounted gas bomb group 1, this
When inch pressure sensor 26 measures the numerical value of setting, magnetic valve 34 is opened, and gas circuit starts to fill gas, the knot grate system of flowmeter 35
Operation, fluid path liquid starts to be flowed back to high-pressure buffering pot, when pressure sensor 34,38 is measured reaches setting value, magnetic valve 34,
38,40 are closed simultaneously.Close gas-liquid road valve 6,9 in vehicle-mounted gas bomb group 1.Depart from after the quick dynamic joint pressure release of words
Vehicle-mounted gas bomb group 1, aerating flexible pipe playback, gas filling is completed.
Current gas storage and gas filling System Development Analysis on Prospect
The hydrogen energy source automobile of current most business potential and market expectations, mainly there is Hydrogen Fuel-cell Vehicles and Hydrogen Energy internal combustion engine
Automobile.Wherein Hydrogen Fuel-cell Vehicles are so that its clean energy resource utilization rate is high and the advantages of no greenhouse gas emission and enjoys each international politics
Mansion and automobile industry giant concern, China, Germany, Japan, Deng Guo governments of the U.S. and automotive giant Toyota Motor, French liquid
Empty, German BMW etc. has put into substantial amounts of fund and manpower in the field.According to new energy field granted patent system in 2010
Meter, the patent numbers in hydrogen fuel cell field there are about 1000, be three times of field of solar energy, and hydrogen fuel cell neck in 2010
Domain patent amplification is more than 57%.In November, 2016, hydrogen energy source automobile industry alliance of China set up, and will take integration hydrogen energy source
The mode of the full industrial chain resource of upstream and downstream promotes the hydrogen energy source development of automobile industry of China.
Although countries in the world government and related industry have put into time, people to the technological development in hydrogen fuel cell field
Power, material resources, correlation technique have also become better and approaching perfection day by day, but in order to meet commercialized needs still in the presence of some technical bottlenecks, safe,
The technologies such as efficient and economic hydrogen manufacturing, defeated hydrogen, hydrogen storage are still to be modified, and the standardization of association area is also not yet completed.Wherein
Due to lacking safe and efficient and economic hydrogen storage technology so that the commercialization process of hydrogen fuel cell car is significantly made
About.(select from：The automobile-used hydrogen storage cylinders of 70Mpa fill intensification research soon.)
The hydrogen manufacturing of one of influence hydrogen energy source car, major technology bottleneck of Hydrogen Fuel-cell Vehicles commercialization process at present, defeated hydrogen,
In three links of hydrogen storage.In the defeated hydrogen of hydrogen, hydrogen storage in two related links, is in vehicle-mounted hydrogen storage cylinder gas filling technology
The node of most critical, so gas is stored, gas filling technology is to restrict gas transport at present, and gas storage industry ensures gas cylinder
Use safely, efficiently quickly fill, reach specified filling weight, produce the basic reason of maximum economic benefit.And the gas of gas cylinder
Fill, produce and use, but with gas filling station using under big flow velocity burner structure, process equipment is configured and control technology phase
Close, the high temperature produced by the phenomenon such as throttling, friction, compression that gas is produced in gas cylinder under big flow rate regime, influence gas cylinder
Safe handling, causes filling weight not enough, and significant impact is produced to economic benefit, governs the development of gas filling industry technology.
By comparison, under big flow velocity burner structure, under the conditions of current natural gas filling station 20MPa pressure is filled, filling machine list rifle fills
Dress sells tolerance for 250m3/ more than h, such as deducts aerating and prepares, charge, and the time aerating of grade fills flow velocity should be in 400m3/h.And in hydrogen
Under gas gas station 35MPa/70MPa pressure conditions, it is bigger to fill flow velocity, and flow is [100kg-260kg] * 11.2m3/ h, it is clear that
Exist and fill process equipment design configuration defect, the structure design defect of gas cylinder, and it is quick to gas under flow conditions greatly
The understanding for filling theory goes back imperfection.This prevents current cylinder gas to fill process equipment and fills technology from meeting business
The use of gaseous fuel is the automobile mounted gas bomb user of power to filling gas under change condition [3 minutes 5 kilograms, 500 kilometers]
Time and distance travelled requirement.And technique is filled using big flow velocity soon, it is continually changing [just in face of filling parameter in control parameter
Beginning pressure is different, and each mounted gas cylinder residual compression is different]；[initial temperature changes；Daily morning, noon and afternoon temperature change]；It is [initial
Fill speed change, the change of vehicle-mounted gas bomb residual compression] production process in, it is impossible to adjust control parameter immediately.So
Control parameter can not be adjusted immediately, and cylinder filling parameter is continually changing, what the big flow velocity of gas was produced during filling soon in gas cylinder
The phenomenons such as throttling, friction, compression, the temperature effect of joule-Thomson adiabatic throttling makes gas be produced in gas cylinder substantial amounts of
That fills temperature rise soon and be presented that linear opposite change collides with each other change fills temperature rise soon, temperature rising 1K is initially filled, in temperature rise
2.3K is risen, initial pressure often improves 1Mpa, temperature rise is filled soon and declines 2.7K].
This problem is protruded very much during natural gas gas filling at present, in the model of natural gas 20Mpa charge pressures
Enclose that the big flow velocity production technology of interior application produces fill soon temperature rise to the safety index of gas cylinder [temperature must not exceed 80 DEG C of regulation,
Temperature sensitivity does not cause danger to gas cylinder, but economic benefit aspect has considerable influence, and filling weight is only capable of the volume of being up to state standards
Determine the 74.1%-79% of filling weight, gas fills temperature rise at 30 DEG C -37 DEG C with initially fill temperature highest adds up to 50 by 20 DEG C soon
DEG C -57 DEG C, methane property, temperature often rises 5 DEG C, and pressure rises 0.7Mpa].
(30℃-37℃)/5℃0.7Mpa≈4.2Mpa-5.18Mpa/
20Mpa-4.2Mpa=15.8Mpa
15.8Mpa/20Mpa=79%
20Mpa-5.18Mpa=14.82Mpa
14.82Mpa/20Mpa=74.1%.
To the Hydrogen Fuel-cell Vehicles hydrogen cylinder of 35Mpa/70Mpa fill generation fill temperature rise soon, if do not selected rationally
Burner structure, fill soon temperature rise can exceed that 85 DEG C (because carbon fibre reinforced composite gas cylinder is higher to the sensitiveness of temperature,
National gas cylinder is no more than 85 DEG C using regulation limitation hydrogen cylinder using maximum temperature), therefore gas to 35Mpa hydrogen cylinders fills
Dress, using producing security risks, and economy aspect filling weight only reaches the specified filling weight standard of national gas
85.1% (presses 20 DEG C of 35Mpa of specified filling weight, hydrogen property, temperature often rises 5 DEG C, and pressure rises 0.4Mpa.
20 DEG C 35Mpa-85 DEG C 35Mpa=65 DEG C
65 DEG C/5 DEG C 0.4Mpa=5.2Mpa
35Mpa-5.2Mpa=29.8Mpa
29.8Mpa/35Mpa=85.1%
The gas of the hydrogen cylinder of 70Mpa fills temperature rise and has reached 125 DEG C soon, is configured by the current process equipment that fills soon for using,
Temperature is in allowed limits by 85 DEG C after gas cooling device has been installed additional, and filling weight fills gauge by 20 DEG C of 70Mpa are specified
20 DEG C 70Mpa-85 DEG C 70Mpa=65 DEG C
65 DEG C/5 DEG C 0.4Mpa=5.2Mpa
70Mpa-5.2Mpa=69.8Mpa
69.8Mpa/70Mpa=92.6%
So the natural gas charging station of 20Mpa at present, 35Mpa, 70Mpa hydrogen fueling station, its specified filling weight only reaches
(74.1%-79%) 85.1%92.6%, is still not up to expectations.
Absolutely proved according to data above, the gas under big flow velocity burner structure quickly fills technology, to gas cylinder
Gas filling is carried out, current gas filling process equipment configuration address only requirement of the user to the time, but can not solve
Fill under conditions of Parameters variation, fill temperature rise and the safety brought in production is filled to the use of cylinder gas user and gas station
Hidden danger, and filling weight deficiency causes economic benefit problem not high, it is impossible to meet gas safety of the commercialization to cylinder filling
Property with filling weight cost-effectiveness requirement, therefore, gas filling technological design device configuration theoretical to existing gas filling and correlation
Gas cylinder structure, operating method, the carrying out of system are introspected and are found the cause, and so as to take targetedly technical measures, gas are filled
The configuration of dress process equipment, gas cylinder structure design, operating method are improved, and are only gas in solution hydrogen, natural gas storing technology
Body fills link, the primary study direction of technological innovation.
Mentioned in 13 new industry Strategic plannings of country's issue recently, production and marketing then is realized to the year two thousand twenty
More than 2000000,5,000,000 overall technology levels of accumulative production and marketing, keep synchronous with the world, are formed a collection of with international competitiveness
Entire new energy automobile and key components and parts enterprise.The gas filling control technology of natural gas and hydrogen fueling station and main
Equipment filling machine, vehicle-mounted gas bomb be all key components and parts therein.Prepressing type gas-liquid displacement big flow gas uniform speed fills soon
Technology as gas filling industry ideal in it is ultimate pursue a goal, researching and developing for it will successfully make the new energy of China with application
The gas filling technologies such as gas-fueled vehicles in automobile industry, hydrogen energy source automobile, Hydrogen Fuel-cell Vehicles and gas gas station are in new energy
Accounted for a favourable technology commanding elevation in the technology competitions such as source automobile industry gas transport, gas storage, gas filling, lifted
The competitive power of product of China's gas filling equipment manufacture, to promoting the energy-saving and emission-reduction of China and the hair of new-energy automobile industry
Exhibition plays important impetus.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection scope of the present invention.
Claims (10)
1. the inflating gas cylinder system that a kind of use prepressing type gas-liquid is replaced, it is characterised in that the system includes gas bomb or storage
Gas cylinders group, filling machine, air accumulator and prepressing type gas-liquid displacement surge tank, filling machine follow procedure control prepressing type gas-liquid displacement buffering
Liquid therein is injected into gas bomb by tank in advance, then makes it with the liquid in the gas displacement gas bomb in air accumulator again
Return to prepressing type gas-liquid displacement surge tank in；Gas inlet/outlet pipe and liquid inlet/outlet pipe are respectively equipped with gas bomb, gas enters
Outlet pipe passes in and out valve, gas rapid movable connector and is connected with filling machine by gas piping again by gas piping by gas, aerating
Machine is connected by gas piping with air accumulator again；Liquid inlet/outlet pipe on gas bomb passes in and out valve, liquid by liquid line by liquid
Body rapid movable connector is connected by liquid line with filling machine again, and filling machine replaces buffering by liquid line and prepressing type gas-liquid again
Tank is connected.
2. as claimed in claim 1 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that the storage
Gas cylinder is provided with one, and gas bomb uses horizontal placement, and wherein liquid inlet/outlet pipe is arranged on the bottom of gas bomb, and gas inlet/outlet pipe sets
Put at the middle part or top of gas bomb.
3. as claimed in claim 2 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that described
Be provided with the liaison tube that connection air accumulator and prepressing type gas-liquid replace surge tank in filling machine, liaison tube be serially connected with the first pressure regulator valve and
First pressure sensor.
4. as claimed in claim 3 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that described
Second pressure sensor, the first magnetic valve and first flowmeter are serially connected with gas piping in filling machine, in the filling machine
The 3rd pressure sensor and the second magnetic valve are serially connected with interior liquid line, in the 3rd pressure sensor of series winding and the second electricity
The two ends of magnet valve are simultaneously connected with the mutual throttle expansion valve and the 3rd magnetic valve for concatenating.
5. as claimed in claim 4 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that described
Liquid line in filling machine also and is connected with the first liquid injection pipe, and the first liquid-filling valve, the first liquid injection pipe are serially connected with the first liquid injection pipe
And be connected on the liquid line between the second magnetic valve and prepressing type gas-liquid displacement surge tank.
6. as claimed in claim 1 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that the storage
Gas cylinder is provided with several, and several gas bomb planes are placed, gas inlet/outlet pipe and liquid the inlet/outlet pipe difference of several gas bombs
It is arranged on the upper and lower part of gas bomb and connection in series with each other.
7. as claimed in claim 6 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that described pre-
Pressure type gas-liquid displacement surge tank includes the prepressing type gas-liquid slow high pressure of displacement and rushes in tank and the displacement of prepressing type gas-liquid presses surge tank,
The first liaison tube that connection air accumulator replaces high-pressure buffering pot with prepressing type gas-liquid, and and prepressing type are provided with the filling machine
The second liaison tube of surge tank is pressed in gas-liquid displacement, the second pressure regulator valve and the 4th pressure sensing are serially connected with the first liaison tube
Device, is serially connected with the 3rd pressure regulator valve and the 5th pressure sensor on the second liaison tube, delays in prepressing type gas-liquid displacement high pressure
Rush in tank and the displacement of prepressing type gas-liquid and be also associated with the 3rd liaison tube between pressure surge tank, pressure regulation is in series with the 3rd liaison tube
Overflow valve, the 4th magnetic valve and the 6th pressure sensor.
8. as claimed in claim 7 using the gas cylinder fast aeration system of prepressing type gas-liquid displacement, it is characterised in that described
The 7th pressure sensor, the 5th magnetic valve and second flowmeter are serially connected with gas piping in filling machine, in the filling machine
Interior liquid line is divided into two-way, respectively leads to the slow high pressure of prepressing type gas-liquid displacement rushes tank the by liquid rapid movable connector
One liquid line, and lead to during prepressing type gas-liquid is replaced the second liquid pipeline for pressing surge tank by liquid rapid movable connector,
The 6th magnetic valve is serially connected with first liquid pipeline, check valve and the 7th magnetic valve are serially connected with second liquid pipeline.
9. as claimed in claim 8 using the inflating gas cylinder system of prepressing type gas-liquid displacement, it is characterised in that in the aerating
Also being respectively paralleled on the first liaison tube and the second liaison tube in machine has the second liquid injection pipe and the 3rd liquid injection pipe, the second liquid injection pipe and
Be serially connected with the second liquid-filling valve and the 3rd liquid-filling valve on 3rd liquid injection pipe respectively, the second liquid injection pipe and be connected in the 4th pressure sensor with
On the first liaison tube that the slow high pressure of prepressing type gas-liquid displacement is rushed between tank, the 3rd liquid injection pipe and be connected in the 5th pressure sensor with it is pre-
Pressed in the displacement of pressure type gas-liquid on the second liaison tube between surge tank.
10. the gas cylinder fast aeration system that the use prepressing type gas-liquid as described in claim 3 or 7 is replaced, it is characterised in that
Pressed in the air accumulator, prepressing type gas-liquid displacement surge tank, prepressing type gas-liquid displacement high-pressure buffering pot and the displacement of prepressing type gas-liquid
The first safety valve, the second safety valve, the 3rd safety valve and the 4th safety valve are connected on surge tank.
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| CN201710060231.5A CN106801787A (en) | 2017-01-24 | 2017-01-24 | A kind of inflating gas cylinder system of use prepressing type gas-liquid displacement |
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| CN201710060231.5A CN106801787A (en) | 2017-01-24 | 2017-01-24 | A kind of inflating gas cylinder system of use prepressing type gas-liquid displacement |
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| CN107559583A (en) * | 2017-10-30 | 2018-01-09 | 江林言 | Gas station constant temperature level pressure fast quantification fills control technique and system |
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| CN111022915A (en) * | 2019-12-23 | 2020-04-17 | 潍柴动力股份有限公司 | High-pressure rapid hydrogenation method and system for fuel cell vehicle |
| CN112728402A (en) * | 2021-01-04 | 2021-04-30 | 东方电气集团东方锅炉股份有限公司 | Nitrogen displacement and drainage device for hydrogen storage tank |
| CN112944209B (en) * | 2021-03-02 | 2022-04-01 | 太仓市金阳气体有限公司 | Automatic monitoring device and method for acetylene filling row and storage medium |
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| CN113757551A (en) * | 2021-08-12 | 2021-12-07 | 深圳烯湾科技有限公司 | Power module, carrier and safety management method of power module |
| CN116983905A (en) * | 2023-09-27 | 2023-11-03 | 中国农业科学院农业环境与可持续发展研究所 | Self-pressure-regulating biomass hydrothermal carbonization device and method |
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