CN102230566A - Multi-bottle combined large-caliber compressed natural gas storage well - Google Patents
Multi-bottle combined large-caliber compressed natural gas storage well Download PDFInfo
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- CN102230566A CN102230566A CN2011101345566A CN201110134556A CN102230566A CN 102230566 A CN102230566 A CN 102230566A CN 2011101345566 A CN2011101345566 A CN 2011101345566A CN 201110134556 A CN201110134556 A CN 201110134556A CN 102230566 A CN102230566 A CN 102230566A
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Abstract
The invention discloses a multi-bottle combined large-caliber compressed natural gas storage well and belongs to optimization and utilization of compressed natural gas storage equipment. The well comprises a well cementing support, a well cementing cement layer, a drying pipeline, a drying pipeline valve, an air inlet/outlet pipeline valve, a pressure gage, a safety valve, a master control valve, a drainage pipeline valve, a drainage pipeline, gas storage bottles and fixing positions, and is characterized by being combined by 2 to 6 gas storage bottles, wherein each gas storage bottle is provided with a single drainage pipeline (10) and a single drainage pipeline valve (9); and each gas storage bottle is provided with a master control valve (8) and is connected to the shared drying pipeline (3) and pressure gage (6). The invention has the advantages that: the compressed natural gas storage well has high gas storage efficiency, good safety performance, high reliability, low leakage rate, convenience in installation, maintenance and inspection and obvious economic benefit, the construction cost is reduced by 30 to 50 percent compared with that of the traditional gas storage well, and due to a multi-bottle combined mode, the gas storage quantity of a single well can be obviously improved, the site is saved and the like.
Description
Technical field
The invention belongs to compressed natural gas (CNG) gas storage equipment technology field, a kind of many bottles of combined type heavy caliber compressed natural gas gas storage wells particularly are provided.
Background technique
Under traditional gas storage well technical specifications, 4～6 mouthfuls of gas storage wells of a natural gas filling station configuration are used for the CNG that pressure store is 25MPa.It is the seamless steel pipe of 177.8mm～273mm that gas storage well adopts outer diameter usually, weldless tube is made according to standards such as API SPEC 5CT/ISO 11960 or GB/T 19830-2005 " industrial gas oil oil gas casing or oil pipe steel pipe ", enterprise's marks, is non-bearing pipe.Be connected to 80m～250m total length by knot hoop,, form the gas storage well of 1～10 cube of water capacity with reference to the sealing gas storage of being driven underground of the method for oil drilling.
Tradition gas storage well and gas storage mode mainly have the following disadvantages:
(1) the down-hole fault is difficult to maintenance: occur in the connecting connection parts if gas storage well is revealed, this leakage ratio is easier to find, also handles easily, if reveal in the down-hole.And aboveground pressure gauge can not voltage stabilizing and find that this just makes us be difficult to the position of determining that the down-hole is revealed, also just is difficult to find effective remedial measure.
(2) the gas storage cylindrical shell easily moves: in use, the phenomenon that well casing is climb at leisure or sunk may occur, even continue the phenomenon of swashing or sinking after occurring handling once again.
(3) make regular check on difficult in maintenance: because downhole hardware has been carried out encapsulation process, so outer surface of steel tube can't overhaul smoothly, internal surface adopts the defect-detecting equipment maintenance of oil well, and aspects such as its testing precision, reliability all have problems.
(4) poor safety performance: conventional well is fixed together seamless steel pipe by the knot hoop; outer wall uses cemented in underground, lacks protection and stressed complexity to side knock, causes gas storing pipe or knot hoop to rupture easily; gas storage well is scrapped, even produced explosion.
(5) installation of a relative gas storage well, need each gas storage well all will dispose identical facility, need rotary digging drilling hole separately, and adopt high pressure water mud to cement the well, well casing installs ground, back and lays reinforced concrete explosion-proof layer and resin/high strength fibre explosion-proof layer, multitube uses relatively, waste material, waste fund.
Summary of the invention
The object of the invention is to provide a kind of many bottles of combined type heavy caliber compressed natural gas gas storage wells, be used for the gas storage of the storage of natural gas filling station CNG, for the storage of natural gas filling station CNG provides a kind of gas storage efficient and Safety performance higher, be convenient to installation, maintenance, check, the caisson of low running cost and gas storage mode.
The present invention mainly uses on the basis at single bottle, extending to 2～6 bottles is used in combination, its advantage is to adopt many bottles of group caissons, simple in structure, reliability is high, leak-down rate is low, maintenance is convenient, cost reduces by 30%～50% than traditional gas storage well, remarkable in economical benefits, and many bottles of combination mode of executions can significantly improve gas storage efficient, increase individual well gas-storing capacity, saving place etc.
The present invention includes well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, fixed position 12; It is characterized in that, combine that each gas cylinder all is provided with independent blowoff line 10 and independent blowoff line valve) by 2～6 air cylinders; Each air cylinder is equipped with the master control valve (8) of oneself simultaneously, and each air cylinder all is connected on the shared dry pipeline 3 and pressure gauge 6.The present invention brings forward the utilization of two and many bottles of combinations of above number, many bottles of combinations can be brought into play the advantage of air bottle type gas storage well more, the thinking of its combination is based upon on the basis of single bottle of formula, and many bottles of combined type heavy caliber compressed natural gas gas storage wells also comprise well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, fixed position 12.Wherein support 1 effect and just replaced original well cementation cast tube for well cementation because along with the expansion of gas storage well diameter, the well cementation cast tube present stage technology be to be difficult to roll out how to satisfy large diameter cast tube.Wherein, the convenience of considering blowdown can all be provided with independent blowoff line 10 and independent blowoff line valve 9 by each gas cylinder; Each air cylinder is equipped with the master control valve 8 of oneself simultaneously, and dry pipeline 3 and pressure gauge 6 can be shared.Below combination thinking as implied above, carry out simple explanation.
For simple single bottle of formula CNG gas storage well (as Fig. 1), be to be embedded in the underground container that is used to store CNG.Single bottle of formula gas storage well comprises well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, fixed position 12.This gas storage well working pressure 25MPa, the gas cylinder external diameter of employing are Φ 559～Φ 910mm, and minimum wall thickness (MINI W.) is 20.6～33.5mm, length 6000～12350mm.
When design two bottle combination gas storage wells (as Fig. 2), two air cylinders can parallel arranged, and the air cylinder lower end is installed on blowoff line 10, and dry pipeline 3, and the air cylinder upper end is provided with master control valve 8.Adopt two shared drain pipes 10 of air cylinder simultaneously, and the blowoff line valve is installed on blowoff line, can supply real-time open and close, convenient timely blowdown.When the need blowdown, the blowdown separately of air cylinder separately, do not influence mutually, in the middle of two air cylinders, add a dry pipe valve 4, with a drying tube two air cylinders are carried out drying like this, and drying tube valve 4 is installed on drying tube 3, be fit to timely open and close, two air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall, also cost-saved, wherein, the well cementation of single bottle of formula gas storage well supports 1 can use cast tube, and well cementation support 1 and air cylinder bottleneck flange are formed enclosed construction, supercharging, compressed natural gas behind the deep dehydration is in gas storage bottleneck turnover tracheae valve 5 input air cylinders, the air cylinder bottleneck is provided with porting, through desulfurization, supercharging, rock gas behind the deep dehydration is discharged from air cylinder bottleneck air inlet and outlet end in air cylinder bottleneck air inlet and outlet end input air cylinder bottle, charges into the CNG automobile.
When adopting three air cylinders as combined type gas storage well (as Fig. 3), three air cylinders can become equilateral triangle to arrange, and gas storage cylinder deposits end and is installed on blowoff line 10, and dry pipeline 3, and the air cylinder upper end is provided with master control valve 8.Simultaneously also can adopt three air cylinders to each have a blowoff line, and the blowoff line valve is installed on blowoff line, can supply real-time open and close, convenient timely blowdown also can be provided with shared blowoff line according to concrete use condition.Can a shared drying tube 3 in the middle of three air cylinders, with a drying tube two air cylinders are carried out drying like this, and dry pipe valve 4 is installed on drying tube 3, be fit to timely open and close, three air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall, also cost-saved.Same well cementation support 1 and air cylinder bottleneck flange are formed enclosed construction, and the compressed natural gas behind supercharging, the deep dehydration is in gas storage bottleneck turnover tracheae valve 5 input air cylinders.
When adopting four air cylinders as combined type gas storage well (as Fig. 4), four air cylinders can become rectangular arranged, and gas storage cylinder deposits end and is installed on blowoff line 10, and dry pipeline 3, and the air cylinder upper end is provided with master control valve 8.Adopt four air cylinders to each have a blowoff line 10, and the blowoff line valve is installed on blowoff line, can supply real-time open and close, convenient timely blowdown also can be provided with shared blowoff line according to concrete use condition.Shared two dry pipelines 3 in the middle of four air cylinders can guarantee gas storage well dryly fully like this, and the drying tube valve is installed on drying tube 4 equally, be fit to timely open and close, four air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall, also cost-saved.Same well cementation support 1 and air cylinder bottleneck flange are formed enclosed construction, and the compressed natural gas behind supercharging, the deep dehydration is in gas storage bottleneck turnover tracheae valve 5 input air cylinders.
When adopting five air cylinders as combined type gas storage well (as Fig. 5), its arrangement mode can be placed on the 5th air cylinder the center of rectangle, same gas storage cylinder deposits end and is installed on blowoff line 10, and dry pipeline 3, and the air cylinder upper end is provided with master control valve 8.Can adopt five air cylinders to each have a blowoff line, and the blowoff line valve is installed on blowoff line, can supply real-time open and close, convenient timely blowdown also can be provided with shared blowoff line according to concrete use condition.Shared two each and every one drying tubes 4 in the middle of five air cylinders so just can guarantee gas storage well drying fully is equipped with the drying tube valve equally on drying tube 4, be fit to timely open and close, four air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall, also cost-saved.Same well cementation support 1 and air cylinder bottleneck flange are formed enclosed construction, and the compressed natural gas behind supercharging, the deep dehydration is in gas storage bottleneck turnover tracheae valve 5 input air cylinders.
When adopting six air cylinders as combined type gas storage well (as Fig. 6), its arrangement mode can three one row, and parallel arranged two is listed as.Gas storage cylinder deposits end and is installed on blowoff line 10, and dry pipeline 3, and the air cylinder upper end is provided with master control valve 8.Can adopt six air cylinders to each have a blowoff line, and the blowoff line valve is installed on blowoff line, can supply real-time open and close, convenient timely blowdown also can be provided with shared blowoff line according to concrete use condition.Shared two each and every one drying tubes 4 in the middle of six air cylinders can guarantee gas storage well dryly fully like this, and the drying tube valve is installed on drying tube 4 equally, be fit to timely open and close, four air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall, also cost-saved.Same well cementation support 1 and air cylinder bottleneck flange are formed enclosed construction, and the compressed natural gas behind supercharging, the deep dehydration is in gas storage bottleneck turnover tracheae valve 5 input air cylinders.
Combination for above multitube, especially a shared cover drying tube and a drain pipe, must select and increase drying tube and drain pipe quantity according to actual conditions, what more than consider is that each bottle is all tried one's best and independently had the blowoff line of oneself and that dry pipeline is tried one's best is shared, if the user is in use to the not high shared design method of drain pipe pipeline, the situation during as two bottles of also can adopting of the requirement of blowoff line.Can also adopt the compound mode of more a plurality of gas cylinders on the other hand, just seven, eight even more gas cylinders.The air cylinder specification limit of many bottles of combined type gas storage well employings is external diameter: Φ 559～Φ 910mm, minimum wall thickness (MINI W.) are 20.6～33.5mm, and length is 6000～12350mm.Can shorten gas cylinder length as the case may be for many bottles of combined type gas storage wells, so that well body construction, gas storage well installation etc. reduce construction cost.
The installation of gas storage well of the present invention comprised for four steps:
At first down excavate the well matrix of 6～13m degree of depth, use well cementing of cement on every side, for the putting into of air cylinder of requirement made sufficient space on ground; Next puts into air cylinder, and the air cylinder that put into this moment has been the air cylinder that various annexes are installed, and such as the fixing device of bottom, various pipelines all must carry out complete installation before steel cylinder is put into.Load onto cover plate then, this step is equivalent to carry out the work of sealing, and down-hole part installment work finishes.Last accessory assembling, this step mainly comprises the installation of various valve bodies of aboveground part and pipeline, has how many air cylinders just to have how many corresponding device thereof to install, and checks.
The characteristics of two and above gas storage well and usefulness are as described below:
(1) air cylinder overall structure, reliability height
Adopt the air cylinder integrated type to replace petroleum casing pipe and add the complicated connection technology of knot hoop, do not only easy disassembly of gas storage well with the integral body of air cylinder, the more important thing is that each several part is simple in structure, reliability is high, can reduce the well casing that traditional gas storage well in use occurs to a great extent and swash or sinkage.
(2) reveal easily maintenance
Two kinds of leakages that the tradition gas storage well exists reflect all be connect firm inadequately.Wellhead assembly leaks easily to be found, also easily handles.And when handling the down-hole leakage situation, novel gas storage well has unique advantage than traditional gas storage well, and traditional gas storage well is because carried out seal operation, and outer surface of steel tube can't overhaul smoothly, can't determine the leak position, can only scrap usually, and other builds Xin Jing; And for novel gas storage well, gas cylinder can be hung out and overhaul, the maintainer also can enter the down-hole easily and overhaul, and brings the tremendous economic loss so need not to scrap gas storage well.
(3) be convenient to safeguard
Still be the maintenance of down-hole for aboveground maintenance no matter, adopt gas cylinder integrated type gas storage well, if in case safety problem occurs, can easily gas cylinder be done as a whole hanging out and overhaul, the maintainer also can enter the down-hole easily and overhaul.During for a plurality of gas cylinder, can overhaul simultaneously, save human capital.
(4) increase gas-storing capacity, save cost
A plurality of gas storage wells use, can the better utilization space, in more limited space, increase gas-storing capacity to greatest extent, because the shared drying tube drain pipe of a plurality of pipelines, so conveniently use and control, and can save cost, a plurality of gas storage wells use jointly, are adopting rotary digging drilling hole technology, and adopt the well cementation of high pressure water mud, can save cost to greatest extent and improve utilization ratio only with once.
(5) unit water capacity cost can reduce by 30%～50%, and overall cost advantage is remarkable
With reference to gas storage well financial cost 5～7.5 ten thousand yuan/water capacity, the water capacity of novel gas storage well can be accomplished 4～12 cubes, and the overall cost of gas storage well can reduce by 30%～50%.
The invention has the advantages that gas storage efficient height, Safety performance are good, be convenient to installation, maintenance, prison inspection, operation cost is low, and conserve space increases gas-storing capacity to greatest extent, and is safe and practical.
Description of drawings
Fig. 1 is the overall schematic of single bottle of gas storage well.Wherein, well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, housing fixed position 12.
Fig. 2 is two bottle combined type gas storage well overall schematic.Wherein, well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, housing fixed position 12.
Fig. 3 is three bottles of combined type gas storage well plan views, wherein, and dry pipe valve 4, master control valve 8, blowoff line valve 9, air cylinder 11.
Fig. 4 is four bottles of combined type gas storage well plan views, wherein, and dry pipe valve 4, master control valve 8, blowoff line valve 9, air cylinder 11.
Fig. 5 is five bottles of combined type gas storage well plan views, wherein, and dry pipe valve 4, master control valve 8, blowoff line valve 9, air cylinder 11.
Fig. 6 is six bottles of combined type gas storage well plan views, wherein, and dry pipe valve 4, master control valve 8, blowoff line valve 9, air cylinder 11.
Embodiment
The present invention includes well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, fixed position 12; It is characterized in that, combine that each gas cylinder all is provided with independent blowoff line 10 and independent blowoff line valve 9 by 2～6 air cylinders; Each air cylinder is equipped with the master control valve 8 of oneself simultaneously, and each air cylinder all is connected on the shared dry pipeline 3 and pressure gauge 6.
Single bottle of formula CNG gas storage well of the present invention (as Fig. 1) is to be embedded in the underground container that is used to store compressed natural gas.Comprise well cementation support 1, cementing concrete layer 2, dry pipeline 3, dry pipe valve 4, turnover air pipe valve 5, pressure gauge 6, safety valve 7, master control valve 8, blowoff line valve 9, blowoff line 10, air cylinder 11, fixed position 12; Air cylinder 11 lower ends are installed on the bottom support flange, and air cylinder 11 tops adopt flange, dowel fixes on air cylinder bottleneck sealing flange, and well cementation cast tube 1 and air cylinder bottleneck flange are formed enclosed construction; The air cylinder bottleneck is provided with porting, and the rock gas behind desulfurization, supercharging, deep dehydration is discharged from air cylinder bottleneck air inlet and outlet end in air cylinder bottleneck air inlet and outlet end input air cylinder bottle, charges into the CNG automobile; Air cylinder length 6～12m, the maximum water capacity of air cylinder can reach 4 cubic meters.
The concrete installation procedure of gas storage well is as described below.
(1) down excavates the hole of 6～13m degree of depth on ground, bury spun cast pipe (or cement pipe) then underground, be the space that provides sufficient of putting into of the air cylinder of suitable quantity.Gas storage well adopts the form of major diameter spun casting steel pipe (or cement pipe) as the gas storage well outer sleeve, is convenient to the structural type of installation of major diameter air cylinder and following well servicing with formation.For two and plural gas storage well are installed, need the Practical Calculation utilization area, and correct mounting point.
(2) put into air cylinder, the steel cylinder that put into this moment has been the steel cylinder that various annexes are installed, and such as the fixing device and the various pipeline of bottom, all must carry out complete installation and airtight test before steel cylinder is put into.Install and the shaft bottom by bearing major diameter air cylinder bottom, and the outer sleeve upper end is fixed in by flange plate in the upper end.
When (3) installing more than two gas storage wells, need each self-check tightness, and whether pipeline separately seal, whether valve is intact.Mutual shared for example drying tube in a plurality of gas storage wells, drain pipe need endure strict scrutiny.
(4) load onto cover plate, this step is equivalent to the work of sealing, and down-hole part installment work finishes.Air cylinder links to each other with other pressurized container by the intake and exhaust pipeline of being made up of pressure valve and safety valve, and the pipeline that the air cylinder bottom adopts pressure valve and pipeline to form is realized inner periodical blowdown of gas cylinder and drying process
(5) accessory assembling, this step mainly comprises the installation of various valve bodies of aboveground part and pipeline.During exhaust,, CNG is discharged with any pressure between 0～25MPa, finish the discharge process of CNG by the outlet valves assembly of pressure regulator valve is installed;
(6) maintaining, gas cylinder is safeguarded or during third pary certification, can be according to actual conditions, operator finish to the down-hole and safeguard or check, perhaps the air cylinder dismounting is hung well head, the gas cylinder method of inspection is finished every check (as magnetic particle flaw detection, ultrasonic flaw detection and surface treatment etc.) of each gas cylinder routinely.
In the whole system of rock gas accumulating, novel gas storage well provided by the invention can be extensive use of in the fields such as natural gas door station, CNG standard gas station, natural gas mother station and natural gas supply sub-station in city.
What the raw material that the present invention uses met the DOT-3AAX standard is applicable to the 25MPa pressure store, diameter is the air cylinder seamless steel pipe of Φ 559mm～Φ 910mm, and the specification of this material is: external diameter * minimum wall thickness (MINI W.) * length=559～910mm * 20.6～33.5mm * 6000～12350mm.At present, Tianjin Steel Pipe Corp.'s 720 units can the hot rolling length range be the air cylinder pipe of 6000～11000mm; 720 grades of groups of Hengyang Steel tube Co., Ltd can the hot rolling length range be the air cylinder seamless steel pipe of the complete series specification of 6000～12350mm.
Claims (7)
1. one kind many bottles combined type heavy caliber compressed natural gas gas storage wells comprise well cementation support, cementing concrete layer, dry pipeline, dry pipe valve, turnover air pipe valve, pressure gauge, safety valve, master control valve, blowoff line valve, blowoff line, air cylinder, fixed position; It is characterized in that, combine that each gas cylinder all is provided with independent blowoff line (10) and independent blowoff line valve (9) by 2～6 air cylinders; Each air cylinder is equipped with the master control valve (8) of oneself simultaneously, and each air cylinder all is connected on the shared dry pipeline (3) and pressure gauge (6).
2. many bottles of combined type heavy caliber compressed natural gas gas storage wells according to claim 1 is characterized in that,
When being designed to two air cylinders combination gas storage well, two air cylinder parallel arranged, the air cylinder lower end is installed on blowoff line (10), and dry pipeline (3), and the air cylinder upper end is provided with master control valve (8); Two air cylinders are installed on the shared drain pipe (10), and the blowoff line valve is installed on blowoff line, for real-time open and close, and convenient timely blowdown; When the need blowdown, the blowdown separately of air cylinder separately, do not influence mutually, in the middle of two air cylinders, add a dry pipe valve (4), with a drying tube two air cylinders are carried out drying like this, and drying tube valve (4) is installed on drying tube (3), be fit to timely open and close, two air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall, well cementation support 1 and air cylinder bottleneck flange are formed enclosed construction, supercharging, compressed natural gas behind the deep dehydration is in gas storage bottleneck turnover tracheae valve 5 input air cylinders, and the air cylinder bottleneck is provided with porting, through desulfurization, supercharging, rock gas behind the deep dehydration is in air cylinder bottleneck air inlet and outlet end input air cylinder bottle, discharge from air cylinder bottleneck air inlet and outlet end, charge into the CNG automobile.
3. many bottles of combined type heavy caliber compressed natural gas gas storage wells according to claim 1, it is characterized in that, when adopting three air cylinders as the combined type gas storage well, three air cylinders become equilateral triangle to arrange, the air cylinder lower end is installed on blowoff line (10), and dry pipeline (3), the air cylinder upper end is provided with master control valve (8); Perhaps adopt three air cylinders to each have a blowoff line, and the blowoff line valve is installed on blowoff line,, perhaps shared blowoff line is set according to concrete use condition for real-time open and close; A shared dry pipeline (3) in the middle of three air cylinders, with a drying tube two air cylinders are carried out drying like this, and on drying tube (3), dry pipe valve (4) is installed, be fit to timely open and close, three air cylinder gases are carried out drying process, be not easy to corrode the gas cylinder wall; (1) is supported in same well cementation and air cylinder bottleneck flange is formed enclosed construction, and the compressed natural gas behind supercharging, the deep dehydration is in gas storage bottleneck turnover tracheae valve (5) input air cylinder.
4. many bottles of combined type heavy caliber compressed natural gas gas storage wells according to claim 1, it is characterized in that, when adopting four air cylinders as the combined type gas storage well, four air cylinders can become rectangular arranged, gas storage cylinder deposits end and is installed on blowoff line (10), and dry pipeline (3), the air cylinder upper end is provided with master control valve (8); Adopt four air cylinders to each have a blowoff line (10), and the blowoff line valve is installed on blowoff line, for real-time open and close,
5. many bottles of combined type heavy caliber compressed natural gas gas storage wells according to claim 4 is characterized in that, when adopting five air cylinders as the combined type gas storage well, its arrangement mode is the center that the 5th air cylinder is placed on rectangle.
6. many bottles of combined type heavy caliber compressed natural gas gas storage wells according to claim 1 is characterized in that, when adopting six air cylinders as the combined type gas storage well, its arrangement mode is three one row, parallel arranged two row; Gas storage cylinder deposits end and is installed on blowoff line (10), and dry pipeline (3), and the air cylinder upper end is provided with master control valve (8); Adopt six air cylinders to each have a blowoff line, and the blowoff line valve is installed on blowoff line, for real-time open and close,
7. according to the described many bottles of combined type heavy caliber compressed natural gas gas storage wells of any purpose of claim 1-6, it is characterized in that, be provided with the drain pipe (10) of sensible air cylinder (11) bottom in the air cylinder (11), drain pipe (10) can regularly be discharged hydrops in the gas storage well, gas storage well working pressure 25MPa, the gas cylinder external diameter that adopts is Φ 559～Φ 910mm, and wall thickness is 20.6～33.5mm, length 6000～12350mm.
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| CN102606873A (en) * | 2012-03-29 | 2012-07-25 | 新兴能源装备股份有限公司 | Bottle set for four-container station |
| CN108016570A (en) * | 2016-10-28 | 2018-05-11 | 石家庄安瑞科气体机械有限公司 | The sealing device and grouping unit of CNG cargo ships gas cylinder or bottle type container grouping unit |
| CN108602618A (en) * | 2015-10-01 | 2018-09-28 | 康斯坦丁·弗拉基米罗维奇·索罗金 | For gas cylinder case, in the case arrangement gas cylinder method and with the case of gas cylinder |
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| CN108016570A (en) * | 2016-10-28 | 2018-05-11 | 石家庄安瑞科气体机械有限公司 | The sealing device and grouping unit of CNG cargo ships gas cylinder or bottle type container grouping unit |
| CN108016570B (en) * | 2016-10-28 | 2024-02-27 | 石家庄安瑞科气体机械有限公司 | Sealing device of CNG transport ship gas cylinder or cylinder container marshalling unit and marshalling unit |
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Application publication date: 20111102 |