CN205854103U - A kind of unpowered natural gas filling station - Google Patents
A kind of unpowered natural gas filling station Download PDFInfo
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- CN205854103U CN205854103U CN201620737539.XU CN201620737539U CN205854103U CN 205854103 U CN205854103 U CN 205854103U CN 201620737539 U CN201620737539 U CN 201620737539U CN 205854103 U CN205854103 U CN 205854103U
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000003345 natural gas Substances 0.000 title claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 285
- 210000003437 trachea Anatomy 0.000 claims abstract description 149
- 238000012806 monitoring device Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract description 3
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- 229910000831 Steel Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
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- 238000003825 pressing Methods 0.000 description 3
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A kind of unpowered natural gas filling station, based on the winding bottle bundled tube container-trailer assembly with intercommunication controllable valve pipe-line system, by the pressure state detection on each remittance trachea, the valve opening and closing regulation and control and the independent gas cylinder that realize the independent gas cylinder of connection on each remittance trachea are connected with each switching converging trachea, and realize the pipeline between trailer and gas cylinder switching.This utility model shortens the time simultaneously parking two trailers on station, goes mother station aerating to strive for the more time for trailer.
Description
Technical field
This utility model relates to a kind of natural gas filling station, belongs to natural gas application technology field, particularly a kind of band gas
The unpowered CNG Filling Station of bottle cycle alternation control system.
Background technology
Along with the improvement of Environmental, for air conservation, administer fuel-engined vehicle tail gas extremely the most urgent, electronic vapour
Car and gas combustion automobile will gradually replace fuel-engined vehicle.Current each big main cities public transit system, has gradually adopted natural gas to replace
Fuel oil is as the main power source of automobile, and the natural gas filling station construction of various places is by flourish.
Two classes are divided at present the most commonly used natural gas vehicle refueling station: 1) taken by pipe-line transportation system (pipe network)
Natural gas, the gas station of market goods locally after compression is referred to as standard station；2) natural gas is taken by pipeline, with multiple stage main equipment collection
Middle compression, is referred to as female substation system with the gas station group of high-pressure bottle transport to strange land scattered distribution.
Existing common substation technique, equipment and principle: 1) container of transport compressed natural gas: at present the most commonly used
Meet the transport vehicle of DOT.The steel cylinder of 8 Φ 559 × 10975 and pipeline valve form 40 feet of (equivalent 12.192m) marks
Quasi-container, volume 8 × 2.25=18m, maximum working pressure 20Mpa, it is loaded on standard semitrailer (chassis).Transport vehicle stops
It is against substation and source of the gas is provided.Container steel cylinder all parallel connections of transport vehicle are one group, share import and export, externally supply in transport vehicle
During gas, the air pressure of every steel cylinder synchronizes to decline.2) immutable due to the volume of steel vessel, transport vehicle is to vehicle supply of being bullied
Rear steel cylinder internal gas pressure declines.In order to ensure while constantly declining at transport vehicle air pressure that vehicle storage pressure of being bullied reaches 20Mpa.
The station gas bomb group of substation is by the middle pressure gas bomb group of the high-pressure gas cylinder of maximum working pressure 25Mpa Yu identical pressure grade
Become, after this first low pressure in press again high pressure in three times to be bullied vehicle supply method be referred to as three lines order aerating modes, can carry
High gas cylinder gas taking rate and compressor operating efficiency.
3) being taken gas by transport vehicle, the equipment of refilling station gas bomb group air pressure is sub-station compressor.Sub-station compressor is special
With equipment, automatic sequence bottle group pressure can be supplemented.Its equipment is complicated, involve great expense.Due to compressibility and the heat of compression of gas,
Inefficient, the power consumption that mechanical energy is converted to compression energy is relatively big, and this is the part that substation operating cost is the highest.
4) discharge column, gas selling machine: discharge column is the transport vehicle special equipment with compressor of connection transportation compressed natural gas,
It is made up of joint, flexible pipe, valve.All of discharge column all only has a pipeline, the unique interface of respective transfer car remittance gas row；Sell
Mechanism of qi is that computer automatically controls the equipment carrying out metering and three line automatic selling gas, has three pipelines to connect high, medium and low voltage storage respectively
Gas cylinder.
Hydraulic substation patented technology general introduction (application number: 020803740.5) that domestic enterprise is introduced by the U.S..
1) core of this technology is the Incoercibility utilizing hydraulic pressure, consumes less plunger with mechanical efficiency high power
Formula oil pump, injects the liquid of patented technology in vehicle carried container, it is to avoid during output gas, container pressure declines, it is achieved store up without station
Gas cylinder group compressor-free sell gas process.
2) being that guarantee vehicle storage pressure of being bullied reaches 20Mpa, vehicle carried container uses the long tubular container of higher pressure instead: meet
Steel cylinder composition 40 feet (equivalent 12.192m) containers of 15 Φ 406 × 10975 of DOT, its operating pressure 25Mpa,
The cost container than 20Mpa is high.The vehicle carried container of this technology shares an import inflation, all steel cylinder uniform compression.In order to save
Saving the liquid of patented technology, every steel cylinder is provided with gas outlet's operated pneumatic valve, and two liquid turnover operated pneumatic valves can be in turn
Discharging the natural gas of a steel cylinder, the adapter of container group and the investment of operated pneumatic valve system complex relatively big, this container group assembles
Special transport vehicle price is higher than common transport vehicle more than 50%.The most special import and export plunger oil pump and control oil pump, container
The switch board price of group operated pneumatic valve exceedes sub-station compressor.
3) this technology is compared with the technology of existing common substation, slightly reduces substation device gross investment and occupation of land；Oil pump is relatively
Compressor is simple, maintaining is relatively easy；Operating cost substantially reduces；The most existing common substation technology has a clear superiority in.
, all there is Installed capital cost high, on-the-spot in the hydraulic substation of the U.S. that the most existing common substation is still introduced
Installation and debugging, engineering is complicated, work on the spot amount big, construction period length, floor space are big, reliability and automaticity is low, make an uproar
The technical problem that sound is big, has not met the requirement of building a station under existing situation.The power consumption of especially common substation is high, it is numerous to safeguard
Trivial and difficult, maintenance cost is high, although hydraulic substation operating cost is relatively low, but remains a need for the most hundreds thousand of even million.High
High cost makes compressed natural gas price remain high for a long time, constrains the popularization and application of this clean energy resource.
In recent years, for reducing cost of investment of building a station, domestic CNG air entraining substation is to utilize 20MPa or 25MPa compressed natural gas
Car is car aerating of being bullied with the natural pressure reduction of car of being bullied.The structure of this refueling system is: arrange multiple independence in transport vehicle
The container group of supply, often group container connects into an outlet each via pipeline and valve.It is bullied car inflation mode have
Two kinds: mode one, discharge column is furnished with and identical with container group number unloads gas interface, first by outlet and the discharge column of each group of container
Unload gas interface connect, the gas pressure size that gas selling machine provides according to each group of container, with elder generation low pressure after in press again the suitable of high pressure
Sequence takes gas from each container group automatically, for car inflation of being bullied, until the air pressure of high-pressure bottle group and car air pressure of being bullied are close to balance, ties
Restraint this bicycle supply and connect lower bicycle.Although this aerating mode reduces floor space, reduce equipment investment cost
With later maintenance expense, but its to fill efficiency the lowest, gas taking rate is only capable of reaching about 60%, and container group completes residue gas during refitting
Body ratio is the highest, and produced business efficiency is unsatisfactory.
Mode two, uses the mode that double car is used in conjunction, its first stage supply operating type and side on the basis of mode one
Formula one is identical, and second stage supply operation is the air pressure balance close with car air pressure of being bullied in the high-pressure bottle group of first bicycle
Rear beginning, abandons the low pressure vessel group of first bicycle, and discharge column is unloaded gas joint according to connecing the second car the most respectively
Low pressure vessel group, the high-pressure bottle group of first car and the medium pressure vessel group of first car, until the low pressure vessel of the second car
Group air pressure and car of being bullied are close to balance.By that analogy, until the high-pressure bottle group air pressure of first bicycle is down to 5MPa, first
Car returns mother station inflation, and the second car returns to first stage supply operation as bicycle.This aerating mode shortens first list
Car returns the time of mother station inflation, it is therefore desirable to the task that fills that original two bicycles can complete is expanded to three cars, increases
The cost of investment of bicycle.Although mode two relatively first kind of way improves and fills efficiency, but its cost of investment is the most relatively
Height, and when filling, frequently to change pipeline joint, operate the most loaded down with trivial details, there is potential safety hazard, and be unfavorable for natural gas filling station
Universal.
In sum, although having obtained the accreditation of certain customers in this unpowered gas station pattern, decrease equipment and
Maintenance cost, but still there are some defects that cannot overcome and cause the Market reaction effect of this gas station undesirable.Therefore,
How by unpowered gas station being filled the raising of efficiency and speed, thus unpowered gas station was promoted from the principle stage
To market-oriented stage of bigger economic benefit can be produced, it it is current unpowered gas station technical problem urgently to be resolved hurrily.
Summary of the invention
This utility model is for solving current unpowered gas station owing to filling the low and slow-footed technical problem of efficiency, it is provided that
A kind of unpowered natural gas filling station, opens and closes regulation and control and to pipe valve by carrying out the valve of single independent gas cylinder
Regulation and control, add the combination number of times of gas cylinder, and gas cylinder utilization rate improves, and improves and fills speed, and reduce bicycle and fill the time, for
Bicycle goes mother station inflation to strive for the more time；And by arranging threeway controllable valve pipeline between two trailers, it is achieved with
The switching of filling machine connects, and saves manpower.
This utility model the technical scheme is that for achieving the above object
A kind of unpowered natural gas filling station, is wound around bottle bundled tube container including filling machine, gas selling machine and at least one
Trailer assembly, filling machine is connected by corresponding pressure pipeline with gas selling machine, it is characterised in that: in the container of described trailer assembly
It is provided with independent gas cylinder, intercommunication controllable valve pipe-line system and valve management and control module, described intercommunication controllable valve pipe-line system
Including N(3≤N≤5) road converges trachea, and every road converge be equipped with on trachea at least one stop valve, pressure monitoring device and M(2≤
M≤4) individual independent gas cylinder, the air inlet/outlet of independent gas cylinder is all connected, between adjacent remittance trachea with each remittance trachea by pneumatic operated valve
Connect by bypass valve；Each road is converged each of trachea and filling machine and is unloaded the corresponding connection of trachea；Valve management and control module is managed according to each
The pressure signal of the pressure monitoring device feedback on road, the keying controlling corresponding pneumatic operated valve with cut-out or accesses gas cylinder, and controls
Corresponding bypass valve and the keying of stop valve, it is achieved independent gas cylinder and the connection of corresponding remittance trachea.
Root of gas cylinder in this utility model installs pneumatic operated valve, is provided with bypass valve between adjacent remittance trachea simultaneously
Bypass pipe.Valve management and control module, according to the pressure signal on each remittance trachea gathered, opens and closes the pneumatic operated valve of corresponding gas cylinder, it is achieved
The independence of gas cylinder is controlled and the cycle alternation restructuring of work bottle group；By the keying control realization of bypass valve is selected gas cylinder with
The connection of corresponding remittance air pipe；By carrying out opening and closing control by by low pressure to the most high-pressure aerated order to stop valve on remittance air pipe
System, it is achieved it is car supply of being bullied that selected gas cylinder depends on by the order of low pressure to high pressure.This utility model system is by using above-mentioned skill
Art scheme, adds the combination number of times of gas cylinder so that gas cylinder utilization rate is greatly improved, improves and fill efficiency, reduces bicycle and fills
ETL estimated time of loading, goes mother station inflation to strive for the more time for bicycle.
Further, described gas cylinder container assembly is that 25MPa is wound around bottle bundled tube container.25MPa is wound around bottle tube bank
Formula container has pressure feature high, capacious, it is possible to the unfavorable factor such as solve that pressure reduction is little, to fill speed slow, improves economy
Benefit.
Further, described remittance trachea is provided with 4 groups, i.e. N is equal to 4, including in low, secondary, middle and high pressure pipe, each remittance trachea
On be equipped with 3 gas cylinders, i.e. M be equal to 3.Gas cylinder installation settings in container, average mark be made into four groups the most reasonable, often
Group is provided with three gas cylinders, and often group gas cylinder is provided with a remittance trachea, and is connected with remittance trachea by respective connecting tube.
Further, described pressure monitoring device is Pressure gauge.
Described gas station is provided with two and is wound around bottle bundled tube container-trailer assembly, and backstage master control machine, filling machine
Unload gas adapter to connect by three-way valve pipeline is corresponding with the remittance trachea of two trailer assemblies respectively, and on three-way valve pipeline
Controllable valve is controlled by backstage master control machine, and the valve management and control module in two trailer assemblies is respectively with backstage master control machine even
Connect, and form synchronization independent sequence control system.
The control method of a kind of unpowered natural gas filling station, based on the winding with intercommunication controllable valve pipe-line system
Bottle bundled tube container-trailer assembly, by the pressure state detection on each remittance trachea, it is achieved connect on each remittance trachea
Valve opening and closing regulation and control and the independent gas cylinder of independent gas cylinder are connected with each switching converging trachea, and realize the pipeline between trailer
With gas cylinder switch, arrange in the valve management and control module of trailer assembly storage have independent gas cylinder cycle alternation transfer sequence table and
The private memory of pressure switching threshold, the concrete steps of described control method include:
A. pipeline connects: with the relevant pressure of filling machine, each remittance trachea of first trailer is unloaded trachea and is connected；
B. first trailer supply: filling machine opens an independent gas cylinder to being subject to according to the order by low pressure to high pressure every time
Gas car supplies, until low pressure or high pressure unload air pressure in trachea and be less than pressure switching threshold；
C. valve opening and closing regulation and control, gas cylinder and pipeline restructuring: the low pressure abandoning filling machine unloads the coconnected low pressure gas cylinder of trachea,
Enable a untapped new gas cylinder, and unload trachea with low pressure and connect that former middle pressure unloads the middle air bottle connected on trachea, middle pressure unloads gas
Pipe connect former high pressure unload connect on trachea gas cylinder, high pressure unload trachea to connect new gas cylinder is that principle opens and closes respective valves, real
Independent gas cylinder of now the recombinating switching of unloading trachea corresponding with filling machine connects；
D. supply is continued: filling machine supplies to car of being bullied successively according to the order by low pressure to high pressure, until low pressure or height
Pressure is unloaded air pressure in trachea and is less than pressure switching threshold；
E. step c ~ d is repeated, until new gas cylinder all participates in supply and low pressure or high pressure unloads gas in first trailer
In pipe, air pressure is less than pressure switching threshold, abandons first trailer low pressure and unloads the coconnected low pressure gas cylinder of trachea, enables second
A untapped new gas cylinder on trailer, and unload with low pressure that trachea connects the former middle air bottle of first trailer, middle pressure is unloaded trachea and connect
The former gas cylinder of first trailer, high pressure unload trachea and connect the new gas cylinder of second trailer is that principle opens and closes respective valves,
Realize the switching of unloading trachea corresponding with filling machine of independent gas cylinder to connect, filling machine according to the order by low pressure to high pressure successively to being subject to
Gas car supplies, until low pressure or high pressure unload trachea air pressure less than pressure switching threshold；
The most by that analogy, until all off connection unloading trachea with filling machine of independent gas cylinder in first trailer, terminate
Two cars are used with, unload first trailer, return mother station inflation, and second trailer uses as first trailer, and repeat step b
~e。
In any one step of step a ~ e, by the remittance trachea of two trailers by threeway controllable valve pipeline and aerating
Machine unloads trachea accordingly and connects.
Single trailer assembly to the principle of car supply of being bullied is: converge quantity and the gas cylinder number of packet of trachea and used
The gas-adding pipe way amount of filling machine identical, as a example by gas cylinder is divided into four groups, the gas-adding pipe way amount of trachea and filling machine of converging is divided
Bie Wei tetra-tunnel, the aerating pipeline of filling machine is respectively low pressure, secondary middle pressure, middle pressure, high-voltage tube, and connects and converge trachea accordingly, example
As, low pressure remittance trachea connects the low-voltage tube of filling machine, and high pressure remittance trachea connects the high-voltage tube of filling machine.Supplying for car of being bullied
Time, filling machine is opened air filling gun according to define by the order of low pressure to high pressure, is opened remittance air pipe accordingly coconnected solely
Vertical gas cylinder.
In this utility model, key problem in technology point includes three parts:
Part I: intercommunication controllable valve ductwork design.Root of gas cylinder in this utility model installs pneumatic operated valve,
Between adjacent remittance trachea, it is provided with the bypass pipe of bypass valve simultaneously.Valve management and control module is converged on trachea according to each gathered
Pressure signal, open and close the pneumatic operated valve of corresponding gas cylinder, it is achieved the independence of gas cylinder is controlled and the cycle alternation restructuring of work bottle group；
The connection of gas cylinder and corresponding remittance air pipe is selected by bypass valve being opened and closed control realization；By to stop valve on remittance air pipe
Carry out opening and closing control by by low pressure to the most high-pressure aerated order, it is achieved selected gas cylinder according to by the order of low pressure to high pressure for being bullied
Car supplies.This utility model system, by using technique scheme, adds the combination number of times of gas cylinder so that gas cylinder utilization rate
It is greatly improved, improves and fill efficiency, reduce bicycle and fill the time, go mother station inflation to strive for the more time for bicycle.
Part II: the design of valve management and control module.Valve management and control module is provided with the switching of independent gas cylinder cycle alternation
Sequence list and the private memory of pressure switching threshold.
After connecting pipeline, start when it fills first and often organize an independent gas cylinder on remittance trachea.When resetting first,
The pressure of all gas cylinders is same or like, therefore, when filling machine is set in advance by the pipeline of low pressure to high pressure according to it
When order is taken gas by each independent gas cylinder, the gas cylinder that its low pressure line connects is that expenditure is the fastest.Therefore pressure switching threshold
Design include that low pressure converges the air pressure≤5 ~ 7MPa of trachea, be accomplished by inflation when taxi gas cylinder air pressure is less than 1MPa, and low
During storage pressure≤5 ~ 7MPa that pressure remittance trachea connects, already close to taxi gas cylinder air pressure, it fills speed and can be substantially reduced,
It is thus desirable to abandon the low pressure remittance coconnected gas cylinder of trachea, introduce new gas cylinder, carry out a gas cylinder restructuring and rearrangement；Automobile
The maximum gas pressure of gas cylinder is close to 20MPa, and therefore, the storage pressure connected on high pressure converges trachea is close with car maximum gas pressure of being bullied
Time, it is difficult to continue aerating for car of being bullied again, is now also required to abandon the low pressure remittance coconnected gas cylinder of trachea, introduces new gas cylinder, enter
The restructuring of gas cylinder of row and rearrangement, therefore the design of pressure switching threshold also includes high pressure converge air pressure≤19 of trachea ~
21MPa。
The design principle of independent gas cylinder cycle alternation transfer sequence table: abandon low pressure converge the coconnected low pressure gas cylinder of trachea,
Switching connects the former middle remittance coconnected middle air bottle of trachea of pressing, and the remittance trachea switching of middle pressure connects the former high pressure remittance coconnected height of trachea
Air bottle, high pressure remittance trachea switching connects the independent gas cylinder being newly introduced.As long as guarantee mentioned above principle, being newly introduced gas cylinder can be even
It is connected on and arbitrarily converges on trachea.
Part III: sequential control method.When filling less than threshold value every time, according to mentioned above principle, gas cylinder is carried out once
Restructuring and switching sequence.
Use the technical solution of the utility model, single air cylinder is individually controlled, is equivalent to add the number of packet
Amount, its beneficial effect includes: 1) aerating speed is greatly improved, and shorten car load unloads the gas time.Such as, at gas cylinder parameter and number
Measure identical in the case of, existing unpowered gas station, be originally the time that 300 taxi aeratings need be 10 hours, but adopt
Only need within 6 hours, can be achieved with by the technical solution of the utility model, substantially reduce unloading the gas time of car load, so for dragging
Car goes mother station aerating to strive for the more time.2) increasing gas cylinder combination number of times, single gas cylinder utilization rate improves, and is originally one group
Gas cylinder≤5 ~ 6MPa just adjusts, and present single air cylinder≤5 ~ 6MPa can be carried out adjusting, and substantially increases and fills speed.
Further, described filling machine is four line filling machines, and the trachea that converges is identical with the pipeline number of filling machine, is 4 tunnels.
Further, described pressure switching threshold includes that low pressure is converged the air pressure≤5 ~ 7MPa of trachea, high pressure and converged trachea
Air pressure≤19 ~ 20MPa.
Further, the pressure switching threshold of described low pressure remittance trachea is preferentially set to≤6MPa or 7MPa, high pressure remittance gas
The pressure switching threshold of pipe is preferentially set to≤20MPa.
In described step b, filling machine opens an independence on every road remittance trachea successively according to the order by low pressure to high pressure
Gas cylinder is to car supply of being bullied.
Further, the switching principle of described independent gas cylinder cycle alternation transfer sequence table is: abandons low pressure and converges on trachea
Gas cylinder, enable and be connected to this and be abandoned gas cylinder place and converge a untapped new gas cylinder on trachea, and converge gas according to low pressure
Pipe connects former middle air bottle, middle pressure converges that trachea connects former gas cylinder, high pressure converges trachea and connects the principle of new gas cylinder and open and close respective valves, real
The switching that the most independent gas cylinder converges trachea with each is connected.Switching principle defines be newly introduced gas cylinder enable order: by quilt
Abandon taking a untapped new gas cylinder on low pressure gas cylinder place remittance trachea.The most both maintenance and management it had been easy to, again can be maximum
Valve and the control of pipeline and use is reduced in degree.
Such as, this utility model uses the container being divided into four groups, often organizing three gas cylinders, by gas cylinder group according to A, B, C, D
Numbering, often organizes independent gas cylinder and numbers in order, and respectively A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, D3, according to upper
State switching principle, its transfer sequence table such as table 1 below.
Table 1:
| Remittance trachea/transfer sequence/number of times | First | 2nd time | 3rd time | The 4th | The 5th | 6th time | 7th time | 8th time | 9th time |
| Low pressure remittance trachea | A1 | B1 | C1 | D1 | A2 | B2 | C2 | D2 | A3 |
| Secondary middle pressure remittance trachea | B1 | C1 | D1 | A2 | B2 | C2 | D2 | A3 | B3 |
| Middle pressure remittance trachea | C1 | D1 | A2 | B2 | C2 | D2 | A3 | B3 | C3 |
| High pressure remittance trachea | D1 | A2 | B2 | C2 | D2 | A3 | B3 | C3 | D3 |
Can definitely be found out by above table, prior art is to reach 6MPa when one group of (three gas cylinders) pressure
Time, it is necessary to a flexible pipe switches on an other trailer, and this utility model is when 9 storage pressures reach 6MP,
Need to switch to, on an other trailer, substantially reduce the use time of standby trailer, go mother station aerating to strive for for trailer
The more time, fill speed and be also greatly improved.
In sum, the beneficial effects of the utility model are notable: 1) root pneumatic operated valve installed by gas cylinder, can pass through control chamber
Remotely control with the industrial computer in gas station, replace manual opening and closing valve；2), in prior art, a bicycle gives 300
Taxi aerating needs 10 hours, uses the controlled pipe-line system of this utility model intercommunication and control method to supply for car of being bullied,
Needing only to the time less than 6 hours, aerating speed is greatly improved, and shorten car load unloads the gas time.3) prior art
It is that one group of (three gas cylinders) pressure is when reaching 6MPa, it is necessary to a flexible pipe is switched on an other trailer, is 9 now
When storage pressure reaches 6MPa, just need to switch on an other trailer, therefore shorten and park two trailers on station simultaneously
Time, mother station aerating is gone to strive for the more time for trailer.
Below in conjunction with the accompanying drawings this utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is intercommunication controllable valve pipe-line system figure in this utility model.
In accompanying drawing, G-01 ~ G-04 represent respectively low, secondary in, middle high-pressure converge trachea；V2-05 ~ V2-08 represents respectively and cuts
Only valve；A1 ~ A3, B1 ~ B3, C1 ~ C3, D1 ~ D3 represent four groups of gas cylinders respectively；PT1 ~ PT4 representative pressure table respectively；V2-09~ V2-
011 represents bypass valve respectively.
Detailed description of the invention
Fig. 1 is intercommunication controllable valve pipe-line system figure in this utility model, and system includes:
1) in low, secondary, middle high-pressure converge trachea G-01 ~ G-04；
2) the stop valve V2-05 ~ V2-08 on each remittance trachea and Pressure gauge PT1 ~ PT4 it is separately positioned on；
3) four groups are connected to gas cylinder group A, B, C, the D each converging on trachea, and each gas cylinder group is provided with three independent gas
Bottle, and respectively by bottleneck pneumatic operated valve with each converge trachea and be connected, by the gas cylinder that is directly connected on each remittance trachea according to remittance
Trachea sequence is respectively defined as: low-voltage tube connects gas cylinder A1 ~ A3, secondary middle pressure pipe connects gas cylinder B1 ~ B3, middle pressure pipe connects gas cylinder C1 ~ C3, height
Pressure pipe connects gas cylinder D1 ~ D3；
4) the bypass valve V2-09 ~ V2-011 being separately positioned between adjacent remittance trachea.
Above four groups of Pressure gauge PT1 ~ PT4 all signal input parts with valve management and control module are connected, described stop valve V2-05
The controlled end of ~ V2-08, bypass valve V2-09 ~ V2-011 and pneumatic operated valve all control ends with valve management and control module are connected.
One specific embodiment of this utility model control method, uses intercommunication controllable valve pipeline shown in above-mentioned Fig. 1
System, arranging storage in valve management and control module has the special of independent gas cylinder cycle alternation transfer sequence table and pressure switching threshold
With memorizer, wherein, pressure switching threshold includes low pressure remittance trachea air pressure≤6MPa, high pressure remittance trachea air pressure≤20MPa, independent
Gas cylinder cycle alternation transfer sequence table, such as table 1 below.
Table 1:
| Remittance trachea/transfer sequence/number of times | First | 2nd time | 3rd time | The 4th | The 5th | 6th time | 7th time | 8th time | 9th time |
| Low pressure remittance trachea | A1 | B1 | C1 | D1 | A2 | B2 | C2 | D2 | A3 |
| Secondary middle pressure remittance trachea | B1 | C1 | D1 | A2 | B2 | C2 | D2 | A3 | B3 |
| Middle pressure remittance trachea | C1 | D1 | A2 | B2 | C2 | D2 | A3 | B3 | C3 |
| High pressure remittance trachea | D1 | A2 | B2 | C2 | D2 | A3 | B3 | C3 | D3 |
Concrete aerating rate-determining steps includes:
A. pipeline connect: by first trailer assembly each converge trachea by threeway controllable valve pipeline respectively with aerating
The gas adapter of unloading of machine connects；
Supply first: opened often group successively by the order of low pressure to high pressure converge on trachea according to converge that trachea pre-sets
First independent gas cylinder A1, B1, C1, the D1 being directly connected to is to car supply of being bullied, until gas cylinder A1 air pressure≤6MPa or gas cylinder D1
Air pressure≤20MPa；
C. second stage supply: abandon the gas cylinder A1 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder B1, secondary middle pressure converge trachea G-02 connection gas cylinder C1, middle pressure converge trachea G-03 connection gas cylinder D1, high pressure converge trachea G-04 connection
Gas cylinder A2, gas cylinder A2 are by being abandoned gas cylinder A1 place second independent gas cylinder of bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder B1, C1, D1, A2 successively to car supply of being bullied, until gas cylinder B1 air pressure≤6MPa or gas cylinder A2 air pressure≤
20MPa；
D. phase III supply: abandon the gas cylinder B1 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder C1, secondary middle pressure converge trachea G-02 connection gas cylinder D1, middle pressure converge trachea G-03 connection gas cylinder A2, high pressure converge trachea G-04 connection
Gas cylinder B2, gas cylinder B2 are by being abandoned gas cylinder B1 place second independent gas cylinder of bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder C1, D1, A2, B2 successively to car supply of being bullied, until gas cylinder C1 air pressure≤6MPa or gas cylinder B2 air pressure≤
20MPa；
E. fourth stage supply: abandon the gas cylinder C1 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder D1, secondary middle pressure converge trachea G-02 connection gas cylinder A2, middle pressure converge trachea G-03 connection gas cylinder B2, high pressure converge trachea G-04 connection
Gas cylinder C2, gas cylinder C2 are by being abandoned gas cylinder C1 place second independent gas cylinder of bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder D1, A2, B2, C2 successively to car supply of being bullied, until gas cylinder D1 air pressure≤6MPa or gas cylinder C2 air pressure≤
20MPa；
F. the 5th stage supply: the remittance trachea of second trailer assembly and the remittance trachea of first trailer assembly are passed through three
The trachea that unloads that logical controllable valve pipeline is corresponding with filling machine respectively connects；Abandon the gas cylinder D1 connected on low pressure remittance trachea G-01,
And low pressure is converged, and trachea G-01 connects gas cylinder A2, secondary middle pressure converges trachea G-02 connection gas cylinder B2, middle pressure converges trachea G-03 connection gas cylinder
C2, high pressure converge trachea G-04 connection gas cylinder D2, gas cylinder D2 by being abandoned gas cylinder D1 place second independent gas cylinder of bottle group；Filling machine
Open gas cylinder A2, B2, C2, D2 successively according to the order by low pressure to high pressure to supply to car of being bullied, until gas cylinder A2 air pressure≤
6MPa or gas cylinder D2 air pressure≤20MPa；
G. the 6th stage supply: abandon the gas cylinder A2 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder B2, secondary middle pressure converge trachea G-02 connection gas cylinder C2, middle pressure converge trachea G-03 connection gas cylinder D2, high pressure converge trachea G-04 connection
Gas cylinder A3, gas cylinder A3 are by being abandoned the 3rd independent gas cylinder of gas cylinder A2 place bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder B2, C2, D2, A3 successively to car supply of being bullied, until gas cylinder B2 air pressure≤6MPa or gas cylinder A3 air pressure≤
20MPa；
H. the 7th stage supply: abandon the gas cylinder B2 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder C2, secondary middle pressure converge trachea G-02 connection gas cylinder D2, middle pressure converge trachea G-03 connection gas cylinder A3, high pressure converge trachea G-04 connection
Gas cylinder B3, gas cylinder B3 are by being abandoned the 3rd independent gas cylinder of gas cylinder B2 place bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder C2, D2, A3, B3 successively to car supply of being bullied, until gas cylinder C2 air pressure≤6MPa or gas cylinder B3 air pressure≤
20MPa；
I. the 8th stage supply: abandon the gas cylinder C2 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder D2, secondary middle pressure converge trachea G-02 connection gas cylinder A3, middle pressure converge trachea G-03 connection gas cylinder B3, high pressure converge trachea G-04 connection
Gas cylinder C3, gas cylinder C3 are by being abandoned the 3rd independent gas cylinder of gas cylinder C2 place bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder D2, A3, B3, C3 successively to car supply of being bullied, until gas cylinder D2 air pressure≤6MPa or gas cylinder C3 air pressure≤
20MPa；
J. the 9th stage supply: abandon the gas cylinder D2 connected on low pressure remittance trachea G-01, and low pressure remittance trachea G-01 connection
Gas cylinder A3, secondary middle pressure converge trachea G-02 connection gas cylinder B3, middle pressure converge trachea G-03 connection gas cylinder C3, high pressure converge trachea G-04 connection
Gas cylinder D3, gas cylinder D3 are by being abandoned the 3rd independent gas cylinder of gas cylinder D2 place bottle group；Suitable according to by low pressure to high pressure of filling machine
Sequence opens gas cylinder A3, B3, C3, D3 successively to car supply of being bullied, until gas cylinder A3 air pressure≤6MPa or gas cylinder D3 air pressure≤
20MPa；
K. complete first trailer unloads gas, unloads first trailer and returns the inflation of aerating master station, and by second trailer
Use as first bicycle, repeat step A ~ J.
In sum, the beneficial effects of the utility model are notable: 1) root pneumatic operated valve installed by gas cylinder, can pass through control chamber
Remotely control with the industrial computer in gas station, replace manual opening and closing valve；2), in prior art, a bicycle gives 300
Taxi aerating needs 10 hours, uses the controlled pipe-line system of this utility model intercommunication and control method to supply for car of being bullied,
Needing only to the time less than 6 hours, aerating speed is greatly improved, and shorten car load unloads the gas time.3) prior art
It is that one group of (three gas cylinders) pressure is when reaching 6MPa, it is necessary to a flexible pipe is switched on an other trailer, is 9 now
When storage pressure reaches 6MPa, just need to switch on an other trailer, therefore shorten and park two trailers on station simultaneously
Time, mother station aerating is gone to strive for the more time for trailer.
In taxi gas bomb, residual compression is reduced to close to aerating necessary during 1MPa.One 23.98m3(gas station standard
Require not can exceed that 24m3) long-tube trailer, about 300 taxis can be charged to 20MPa, it is assumed that taxi bottle group is 70
Rise, overbottom pressure 1MPa.
Long-tube trailer bottle group toward taxi aerating reach any one situation of following two time, it is impossible to being further continued for aerating, one is
Long-tube trailer low pressure bottle group (less than 6-7MPa) is little with taxi bottle group pressure reduction, adds throughput less than setting value, continuation aerating speed
Spend the slowest；Two is that long-tube trailer bomb group pressure is less than 20MPa, now can not realize to taxi aerating to 20MPa.Go out
Existing any of the above situation, long-tube trailer low pressure bottle group can not re-use, and needs open gas cylinder or switch to bomb group.
This utility model use four line intelligent gas dispensers, long-tube trailer gas cylinder average mark be made into four groups the most reasonable, public with me
As a example by taking charge of 12 pipe long-tube trailers, gas cylinder is divided into four groups, often three gas cylinders of group.
Trailer goes mother station to inflate: it is hose connection in converging any one fast-assembling public affairs of trachea G-01～04 that (1) will add gas column aerating
On Tou, open the stop valve V2-05～08 on this pipeline and bypass valve V2-09～11 simultaneously；(2) instrument in station is connected
Wind, power supply, open instrument wind ball valve, presses aerating start button, and the pneumatic operated valve on trailer is fully open；(3) start mother station to add
Gas column carries out aerating；(4) when trailer is full of, pressing aerating stop button, closes whole pneumatic operated valve；(5) close bypass valve and fill
The stop valve that head is corresponding, empties ready-packaged joint CNG, pulls down aerating flexible pipe, closes instrument wind ball valve, empties instrument wind, disconnects instrument
Table air pipe line and power supply, complete filling of trailer.
Gas is unloaded in trailer substation: (1) connects instrument air pipe line, power supply, communication cable in station；(2) station inner high voltage flexible pipe is divided
It is not connected to, on remittance trachea G-01～04 fast-assembling head, open stop valve V2-05～08, closes bypass valve V2-09～11；(3)
Gas start button is unloaded in pressing, and system opens first pneumatic operated valve of each group in 4 groups；(4) when single bottle pressure is down to 7Mpa system from
Dynamic close this startup valve, open this group next one pneumatic operated valve, when one of which unload gas complete time, pull down flexible pipe and be installed on other one
On trailer；(5) when 4 flexible pipes of this trailer are all pulled down, deenergization, instrument wind, communication cable, front go mother station to inflate.
When trailer unloads gas in substation, operate the control chamber in storehouse after container and be connected with gas station industrial computer, it is achieved remotely
Control.
Container is totally enclosed forty foot equivalent unit, and top aluminium alloy plate binds, and base plate and both sides add steel loading
Matter fire prevention division board, efficiently solves the problems such as the solar radiation of winding layer, external impact, baked wheaten cake；Gas cylinder is grouped by container,
Often the connection of group gas cylinder pipeline installs ball valve and ready-packaged joint and Pressure gauge, thermometer additional after collecting, and forms several loading hatch, each
Arranging exhaust-valve on loading hatch, each group can independently pass in and out gas, is connected with multiple ball valves so that every between the most several groups of pipelines
All gas cylinders can be filled simultaneously simultaneously unload gas by one loading hatch；After container, storehouse arranges blowoff line；Before and after container, storehouse is equal
Safety dumping pipeline is set, equipped with the safety relief device of rupture disk with fusible alloy combination, exhaust branch pipe on each gas cylinder
All it is connected with the exhaust main seal of tube, and aerofluxus supervisor gangs up in the bottom of casing and top, the problem solving safety dumping；
Corner, container bottom surface is firmly connected with trailer running gear；By fast attaching between container turnover air pipe and air delivering pipeline
Head is connected；Filling machine is pressure self-identifying filling machine, including pressure transmitter, stop valve, pressure automatic identification system and computer
TT&C system, it is wound around on the pipeline that bottle is connected with each group and is respectively provided with stop valve, relief valve and pipeline diffusion valve etc.；Pipeline
System includes high-pressure hose and air delivering pipeline, and one end of high-pressure hose is connected with being wound around bottle bundled tube container air inlet/outlet,
The other end is connected with air delivering pipeline.
Claims (4)
1. a unpowered natural gas filling station, is wound around bottle bundled tube container including filling machine, gas selling machine and at least one and drags
Car assembly, filling machine is connected by corresponding pressure pipeline with gas selling machine, it is characterised in that: set in the container of described trailer assembly
There are independent gas cylinder, intercommunication controllable valve pipe-line system and valve management and control module, described intercommunication controllable valve pipe-line system bag
Including N(3≤N≤5) road converges trachea, and every road is converged and is equipped with at least one stop valve, pressure monitoring device and M(2≤M on trachea
≤ 4) individual independent gas cylinder, the air inlet/outlet of independent gas cylinder is all connected, between adjacent remittance trachea with each remittance trachea by pneumatic operated valve
Connect by bypass valve；Each road is converged each of trachea and filling machine and is unloaded the corresponding connection of trachea；Valve management and control module is managed according to each
The pressure signal of the pressure monitoring device feedback on road, the keying controlling corresponding pneumatic operated valve with cut-out or accesses gas cylinder, and controls
Corresponding bypass valve and the keying of stop valve, it is achieved independent gas cylinder and the connection of corresponding remittance trachea.
One the most according to claim 1 is unpowered natural gas filling station, it is characterised in that: described gas cylinder container assembly
It is that 25MPa is wound around bottle bundled tube container.
One the most according to claim 1 is unpowered natural gas filling station, it is characterised in that: described remittance trachea is provided with 4 groups,
I.e. N is equal to 4, including in low, secondary, middle and high pressure pipe, each remittance trachea is equipped with 3 independent gas cylinders, i.e. M is equal to 3.
One the most according to claim 1 is unpowered natural gas filling station, it is characterised in that: described gas station is provided with two
Be wound around bottle bundled tube container-trailer assembly, and backstage master control machine, filling machine unload trachea respectively by threeway controllable valve
After pipeline is corresponding with the remittance trachea of two trailer assemblies to be connected, and the controllable valve on threeway controllable valve pipeline is controlled by
Platform master control machine, the valve management and control module in two trailer assemblies is connected with backstage master control machine respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737539.XU CN205854103U (en) | 2016-07-14 | 2016-07-14 | A kind of unpowered natural gas filling station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737539.XU CN205854103U (en) | 2016-07-14 | 2016-07-14 | A kind of unpowered natural gas filling station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205854103U true CN205854103U (en) | 2017-01-04 |
Family
ID=57646717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620737539.XU Active CN205854103U (en) | 2016-07-14 | 2016-07-14 | A kind of unpowered natural gas filling station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205854103U (en) |
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2016
- 2016-07-14 CN CN201620737539.XU patent/CN205854103U/en active Active
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