CN201650366U - Bottle type compressed natural gas underground storage well - Google Patents
Bottle type compressed natural gas underground storage well Download PDFInfo
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- CN201650366U CN201650366U CN201020157970XU CN201020157970U CN201650366U CN 201650366 U CN201650366 U CN 201650366U CN 201020157970X U CN201020157970X U CN 201020157970XU CN 201020157970 U CN201020157970 U CN 201020157970U CN 201650366 U CN201650366 U CN 201650366U
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Abstract
The utility model provides a bottle type compressed natural gas underground storage well which comprises an underground fixed cylinder body part and a gas cylinder, wherein the underground fixed cylinder body part is vertically provided with a steel pipe, the upper end and the lower end of the steel pipe are respectively welded with an upper welding plate arranged at an opening of the storage well and a steel plate arranged at the bottom of the gas storage well, a base is fixedly arranged on the steel plate, the gas cylinder is arranged in the center of the underground fixed cylinder body part, the upper end of the gas cylinder is connected with an upper cover plate by adopting a flange and the lower end thereof is connected with the base by adopting the flange, and a gas inlet and outlet pipeline device is arranged at the upper end of the gas cylinder. The bottle type compressed natural gas underground storage well can avoid the possible upward movement of the cylinder body during the use of the underground storage well in the prior art, further effectively prevent the probability of serious accidents during the use of the underground storage well and greatly improve the safety performance of the underground storage well.
Description
[technical field]
The utility model relates to a kind of compressed natural gas (CNG:Compressed Natural Gas) underground gas storage device, particularly relates to a kind of bottle of formula compressed natural gas well for storage.
[background technology]
In recent years, along with the continuous acceleration of process of industrialization, the increase of national income, people's living standard improves greatly, and automobile has entered huge numbers of families.But the discharging of its tail gas is also just becoming the arch-criminal of atmosphere pollution, and the environmental problem of thereupon bringing is also just becoming serious social concern.At present, the atmosphere pollution that vehicle exhaust causes is being gone into overdrive to administer in countries in the world.The CNG automobile is being represented the direction of vehicle clean energy, and development CNG (compressed natural gas) automobile will become the important channel that solves energy problem and environmental problem.The CNG technology is widely used in various places, drives a large amount of construction of CNG gas station and operation thus.The high-pressure gas system of gas station generally takes the mode of ground gas bomb or gasholder to store compressed natural gas both at home and abroad in early days, has developed the gas storage of missile silo formula afterwards.From the reservoir vessel of ground, existing small gas cylinder group also has large-scale gas cylinder group, also has large-scale welding reservoir vessel.Because pressure store height (can reach 25MPa), compression area are big, and lay on the ground, the safety problem of caisson causes people's generally worry, and arbitrary link goes wrong and all will cause pernicious explosion accident in its quality and the installation.
CNG underground high-voltage gas storage well is a kind of brand-new gas storage mode that develops rapidly in recent years, developmental research through going beyond what is acceptable or necessary 10 years and application, substantially, be tending towards ripe perfect at present, remarkable advantages such as its safety height are subjected to the extensive concern and the approval of CNG Vehicle Fueling Station Construction unit and management of fire safety department.It has cost low, and floor space is little, and constant temperature is antistatic, builds up distinguishing features such as duration weak point, has now become the first-selected gas storage system of CNG gas station.
As shown in Figure 1, be underground high-voltage gas storage well of the prior art, in order to store compressed natural gas.The gas storage well under ground portion is that gas storage well tank body 101 is formed with cementing concrete around the tank body, and cementing concrete makes gas storage well tank body 101 and soil isolated, plays the corrosion-resistant effect; The gas storage well overground part is made up of air inlet port, gas outlet, pressure meter, sewage draining exit, safety valve, manhole top cover; Air inlet port is connected with air inlet stop valve 103 by air inlet tube 102, and air inlet stop valve 103 connects with wellhead assembly by the turnover air pipe again; The gas outlet is linked to each other with the stop valve 110 of giving vent to anger by outgoing gas connection tube 109, and the stop valve 110 of giving vent to anger is connected with wellhead assembly by outlet pipe again; Gas storage well tank body 101 upper lateral parts are provided with safety device, and the gas storage well tank body is connected with safety shutoff valve 113 by pipeline, and safety shutoff valve 113 links to each other with safety valve 112, and the safety valve sidepiece has safety valve connecting pipe 111; Pressure meter 105 is connected with pressure meter stop valve 104, and pressure meter stop valve 104 links to each other with manhole top cover 108; Gas keeps dry at any time in the well in order to make, gas storage well is provided with blow-off pipe 114, blow-off pipe 114 from well head to the shaft bottom, get rid of hydrops in the well by air pressure, blow-off pipe 114 is connected with blowdown stop valve 107, blowdown stop valve 107 links to each other with blowdown connection 106 again, and blowdown stop valve 107 is fixed on the manhole top cover 108; Manhole top cover 108 adopts bolt uniform connection of hoop with wellhead assembly.
Yet, there is following shortcoming in gas storage well structure of the prior art: the gas storage well tank body can produce the elastic stretching distortion under the 25Mpa effect, when the annular space sealing quality between the gas storage well tank body and the borehole wall has problems, because the frictional resistance of sealing face is not enough to resist the active force that the cylindrical shell elastic deformation produces, and will cause on the well body and scurry.
In addition, when phenomenons such as crackle, perforation appear in the tank body tank skin of gas storage well, can cause " down-hole leakage " that in case this situation occurs, be difficult to adopt remedial measures, whole gas storage well can only do to scrap processing.
Also have, the gas storage well tank body in use can be because of corrosion, produces " hydrogen embrittlement " phenomenon and explosion takes place, if cementing quality is up to standard, after the explosion, the gas leakage phenomenon can take place; If cementing quality is poor, the pit shaft even the ground of can scurrying out under the effect of high-pressure natural gas produce major accident.
[summary of the invention]
For solving the above-mentioned problems in the prior art, the utility model provides a kind of bottle of formula compressed natural gas well for storage, it is by improving the form of structure of existing gas storage well, replaced the original gas storage well tank body that directly contacts with cementing concrete with compressed natural gas steel seamless gas cylinder, thereby scurry on the well body that has effectively prevented to cause because of the cementing quality problem, simultaneously, this bottle formula compressed natural gas well for storage is simple in structure, easy accessibility, even there is the down-hole leakage problem, also can in time adopt remedial measures, needn't scrap gas storage well.
The utility model adopts following technical scheme:
A kind of bottle of formula compressed natural gas well for storage, comprise underground fixed cylinder part and gas cylinder, described underground fixed cylinder part vertically is provided with steel pipe, a steel plate welding at the bottom of the upper and lower end of described steel pipe is gone up the weldering plate and is arranged at gas storage well with one that is arranged at the gas storage well head respectively, fixedly install a base on the described steel plate, it is central that described gas cylinder is arranged at described underground fixed cylinder part, and adopt between the upper end of gas cylinder and the upper cover plate that flange is connected, adopt flange to be connected between lower end and the base, the upper end of described gas cylinder is provided with and passes in and out the air pipe device.
Wherein, described turnover air pipe device comprises first ball valve, second ball valve, the 3rd ball valve, safety valve, turnover tracheae, pressure isolation valve and pressure meter, described first ball valve links to each other with the middle part of described turnover tracheae by a reducing cross with safety valve, one end of described turnover tracheae connects second ball valve, the other end connects the 3rd ball valve, and described turnover tracheae is provided with pressure isolation valve and pressure meter near the second ball valve place.
Described gas storage well also comprises drying device, described drying device mainly comprises a drying tube that vertically is arranged in the gas storage well, described drying tube one end is located at the gas storage well bottom, and the other end is arranged at outside the gas storage well, and the end that drying tube is positioned at outside the gas storage well is provided with the 4th ball valve.
Described gas storage well also comprises blowdown apparatus, described blowdown apparatus mainly comprises a blow-off pipe that vertically is arranged in the gas storage well, described blow-off pipe one end is arranged at the gas cylinder bottom, and the other end is arranged at outside the gas storage well, and the end that blow-off pipe is positioned at outside the gas storage well is provided with blowoff valve.
Describedly go up weldering plate below, concrete is laid in the underground fixed cylinder part outside, and describedly go up the one side that the weldering plate contacts with concrete and be provided with " J " font stone bolt.
Bottle according to claim 1 formula compressed natural gas well for storage is characterized in that, the flange ring between described gas cylinder lower end and the base is provided with some pins to uniform.
The beneficial effects of the utility model are, gas storage well adopts compressed natural gas steel seamless gas cylinder to replace and the original gas storage well tank body that directly contacts with cementing concrete, pressure in the gas cylinder acts on gas cylinder and does not act directly on the well cementation space of outside cylindrical shell and cementing concrete, space between gas cylinder and cylindrical shell is an atmospheric pressure state, scurry on the cylindrical shell with regard to not causing like this, improved the safety of gas storage well greatly because of the cementing quality problem.
In addition, the utility model bottle formula compressed natural gas well for storage is simple in structure, easy accessibility, if down-hole part parts are because of former thereby generation losses such as fair wear and tear corrosion, also can implement repair, this has improved the service efficiency and the application life of gas storage well greatly, increased its economy, the damaged repair that just is difficult to implement takes place in case overcome gas storage well ground tank body portion of the prior art, can only do the defective of scrapping processing, the scurry out generation of major accidents such as ground of the gas storage well that may cause because of underground tank body breakage when simultaneously also having avoided cementing quality relatively poor.
[description of drawings]
Fig. 1 is a underground high-voltage gas storage well schematic diagram of the prior art;
Fig. 2 is the utility model bottle formula compressed natural gas well for storage schematic diagram;
The underground fixed cylinder part schematic diagram that Fig. 3 (a) relates to for the utility model;
Fig. 3 (b)～Fig. 3 (c) is the partial enlarged drawing of Fig. 3 (a);
Fig. 4 is the schematic diagram of drying device in the utility model;
Fig. 5 is the schematic diagram of blowdown apparatus in the utility model;
Fig. 6 is the structural representation of gas storage well bottom in the utility model;
Fig. 7 (a)～Fig. 7 (b) is the structural representation of well for storage well head part in the utility model;
Fig. 8 is a turnover air pipe schematic representation of apparatus in the utility model.
The Reference numeral that relates among the figure is as follows:
1a. the first ball valve 1b., second ball valve
1c. the 3rd ball valve 2. turnover tracheaes
3. reducer tee 4. pressure isolation valves
5. pressure meter 6. reducing crosses
7. safety valve 8. male thread joints
9. stack 10. upper end plug
11. upper flange 12. upper cover plates
13. weld plate on the rainproof pad 14.
15. steel pipe 16. gas cylinders
17. 18. times end plugs of lower flange
19. cutting ferrule joint 20. bases
21. elbow bend 22. blow-off pipes
23. steel plate 24. drying tubes
25. pipe clamp 27. the 4th ball valve
28. stone bolt 29. concrete
30. blowoff valve 31. earth
101. gas storage well tank body 102. air inlet tubes
103. air inlet stop valve 104. pressure meter stop valves
105. pressure meter 106. blowdown connections
107. blowdown stop valve 108. manhole top covers
The stop valve 109. outgoing gas connection tube 110. is given vent to anger
112. safety valve 113. safety shutoff valves
114. blow-off pipe
[specific embodiment]
Below in conjunction with embodiment and with reference to accompanying drawing the utility model is further described.
As shown in Figure 2, a kind of bottle of formula compressed natural gas well for storage, comprise underground fixed cylinder part and gas cylinder 16, described underground fixed cylinder part vertically is provided with steel pipe 15, on the described steel pipe 15, steel plate 23 welding at the bottom of the lower end is gone up weldering plate 14 and is arranged at gas storage well with one that is arranged at the gas storage well head respectively, fixedly install a base 20 on the described steel plate 23, it is central that described gas cylinder 16 is arranged at described underground fixed cylinder part, and the upper end of gas cylinder 16 adopts upper flange 11 to be connected with upper cover plate 12, adopt lower flange 17 to be connected between lower end and the base 20, the upper end of described gas cylinder 16 is provided with and passes in and out the air pipe device.
Wherein, described turnover air pipe device comprises the first ball valve 1a, the second ball valve 1b, the 3rd ball valve 1c, safety valve 7, turnover tracheae 2, pressure isolation valve 4 and pressure meter 5, the described first ball valve 1a links to each other with the middle part of described turnover tracheae 2 by a reducing cross 6 with safety valve 7, one end of described turnover tracheae 2 connects the second ball valve 1b, the other end connects the 3rd ball valve 1c, and described turnover tracheae 2 is provided with pressure isolation valve 4 and pressure meter 5 near the second ball valve 1b place.
Described gas storage well also comprises drying device, described drying device mainly comprises a drying tube 24 that vertically is arranged in the gas storage well, described drying tube 24 1 ends are located at the gas storage well bottom, and the other end is arranged at outside the gas storage well, and the end that drying tube 24 is positioned at outside the gas storage well is provided with the 4th ball valve 27.
Described gas storage well also comprises blowdown apparatus, described blowdown apparatus mainly comprises a blow-off pipe 22 that vertically is arranged in the gas storage well, described blow-off pipe one end is arranged at the gas cylinder bottom, and the other end is arranged at outside the gas storage well, and the end that blow-off pipe 22 is positioned at outside the gas storage well is provided with blowoff valve 30.
Shown in Fig. 3 (a), the underground fixed cylinder part schematic diagram that relates to for the utility model, Fig. 3 (b) and Fig. 3 (c) are respectively A among Fig. 3 (a), the partial enlarged drawing of B part, shown in Fig. 3 (b), last weldering plate 14 adopts two-sided Type of Welding to link together with steel pipe 15, shown in Fig. 3 (c), bottom steel plate 23 adopts two-sided Type of Welding to link together with steel pipe 15, the one side that last weldering plate 14 contacts with concrete 29 is welded with stone bolt 28, its objective is the fixed cylinder position, prevent that cylindrical shell in use breaks away from concrete 29 parts, concrete 29 has played the effect of lower shell regularly, prevent that it is in use because earth 31 natural subsidence etc. are former thereby be damaged, simultaneously, concrete 29 has also completely cut off shell portion and has contacted with the direct of earth 31, has prevented to have prolonged the application life of shell portion because of action of chemicals in the soil produces corrosion on cylindrical shell.
Be illustrated in figure 4 as drying device, the 4th ball valve 27 and cutting ferrule joint 19 are connected by thread forms, and cutting ferrule joint 19 is connected with drying tube 24, and drying tube 24 is connected with elbow bend 21.The purpose of drying device is regularly removal moisture drying to be carried out in underground gas storage well inside by drying tube, effectively prevents corrosiveness.
Be illustrated in figure 5 as blowdown apparatus, cutting ferrule joint 19 is connected by blow-off pipe 22 with elbow bend 21, blowoff valve 30 and cutting ferrule joint 19 are connected with thread forms, owing to contain certain moisture content in the compressed natural gas, can produce hydrops in gas cylinder 16 bottoms over time, in order to prevent to produce corrosiveness,, realize getting rid of the purpose of hydrops so utilize blowdown apparatus to pass through a bottle internal gas pressure effect owing to moisture exists.
Be illustrated in figure 6 as the related bottle formula compressed natural gas well for storage polycrystalline substance schematic diagram of the utility model, lower flange 17 internal threads cooperate with gas cylinder 16 external screw threads, be fixed in gas cylinder 16 necks, lower flange 17 flange portions are equipped with four pin holes that hoop is uniform, its objective is locking gas cylinder 16, prevent that gas cylinder 16 from use rotating owing to factor effects such as being subjected to external force, lower flange 17 flange portions are fixed in base 20 and the corresponding hole of its diameter, and lower flange 17 flanged lip hoops are evenly equipped with eight bolts hole is connected reliably lower flange 17 in order to be connected with base 20 with base 20, base 20 is placed on the steel plate 23, gas cylinder 16 internal threads are connected with following end plug 18 external screw threads, have air vent in the following end plug 18 and make blowdown usefulness, air vent one end ventilation bottle 16 inside, the other end is connected with blowdown apparatus lower end cutting ferrule joint 19, and pipe clamp 25 is used for fixing blow-off pipe 22.
Be depicted as the related bottle formula compressed natural gas well for storage well head part separation structure schematic diagram of the utility model as Fig. 7 (a), upper flange 11 is connected threadably with gas cylinder 16, upper flange 11 flange portions are fixed in upper cover plate 12 hole that diameter is relative with it, uniform eight bolts hole are used for being connected reliably with upper cover plate 12 on upper flange 11 flanged lips, gas cylinder 16 bottleneck internal threads and upper end plug 10 external screw threads are connected, upper end plug 10 inside have air vent, air vent one end ventilation bottle 16 inside, the other end is connected with air inlet port pipeline assembly with the form of being threaded, shown in Fig. 7 (b), upper cover plate 12, rainproof pad 13 adopts thread connecting mode to link together with last weldering plate 14, and purpose is to prevent in the use because of being subjected to reasons such as external force effect to produce displacement.
Be illustrated in figure 8 as the related bottle formula compressed natural gas well for storage turnover air pipe device of the utility model.The first ball valve 1a two ends connect a male thread joint 8 respectively, and one of them male thread joint 8 one end is connected with upper end plug 10, and the other end is connected with reducing cross 6; Reducing cross 6 attachment security valves 7 and turnover tracheae 2 middle parts, turnover tracheae 2 is connected with reducer tee 3 again; Reducer tee 3 other two ends, vertical direction is connected with pressure isolation valve 4, pressure isolation valve 4 is connected with pressure meter 5 again, horizontal direction connects one section turnover tracheae 2 again, one termination, the second ball valve 1b of turnover tracheae 2, another termination the 3rd ball valve 1c, safety valve 7 has been avoided the danger that in use produces owing to pressure of the inside of a bottle is too high, has improved the safe application performance of gas storage well.
Continuation is referring to Fig. 2, the each several part parts are installed according to aforementioned manner, drying tube 24, stack 9, blow-off pipe 22 are individually fixed in upper cover plate 12 hole correspondingly, integral hoisting is gone in the underground fixed cylinder then, adjust after the position, upper cover plate 12, rainproof pad 13 with on squeeze into bolt in the uniform screw of weldering plate 14 and fixed.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered as in the protection domain of the present utility model.
Claims (6)
1. bottle formula compressed natural gas well for storage, comprise underground fixed cylinder part and gas cylinder, it is characterized in that, described underground fixed cylinder part vertically is provided with steel pipe, on the described steel pipe, a steel plate welding at the bottom of the lower end is gone up the weldering plate and is arranged at gas storage well with one that is arranged at the gas storage well head respectively, fixedly install a base on the described steel plate, it is central that described gas cylinder is arranged at described underground fixed cylinder part, and adopt flange to be connected between the upper end of gas cylinder and the upper cover plate, adopt flange to be connected between lower end and the base, the upper end of described gas cylinder is provided with and passes in and out the air pipe device.
2. bottle formula compressed natural gas well for storage according to claim 1, it is characterized in that, described turnover air pipe device comprises first ball valve, second ball valve, the 3rd ball valve, safety valve, turnover tracheae, pressure isolation valve and pressure meter, described first ball valve links to each other with the middle part of described turnover tracheae by a reducing cross with safety valve, one end of described turnover tracheae connects second ball valve, the other end connects the 3rd ball valve, and described turnover tracheae is provided with pressure isolation valve and pressure meter near the second ball valve place.
3. bottle formula compressed natural gas well for storage according to claim 1, it is characterized in that, described gas storage well also comprises drying device, described drying device mainly comprises a drying tube that vertically is arranged in the gas storage well, described drying tube one end is located at the gas storage well bottom, the other end is arranged at outside the gas storage well, and the end that drying tube is positioned at outside the gas storage well is provided with the 4th ball valve.
4. bottle formula compressed natural gas well for storage according to claim 1, it is characterized in that, described gas storage well also comprises blowdown apparatus, described blowdown apparatus mainly comprises a blow-off pipe that vertically is arranged in the gas storage well, described blow-off pipe one end is arranged at the gas cylinder bottom, the other end is arranged at outside the gas storage well, and the end that blow-off pipe is positioned at outside the gas storage well is provided with blowoff valve.
5. bottle according to claim 1 formula compressed natural gas well for storage is characterized in that, describedly goes up weldering plate below, concrete is laid in the underground fixed cylinder part outside, and describedly goes up the one side that the weldering plate contacts with concrete and be provided with " J " font stone bolt.
6. bottle according to claim 1 formula compressed natural gas well for storage is characterized in that, the flange ring between described gas cylinder lower end and the base is provided with some pins to uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020157970XU CN201650366U (en) | 2010-04-13 | 2010-04-13 | Bottle type compressed natural gas underground storage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020157970XU CN201650366U (en) | 2010-04-13 | 2010-04-13 | Bottle type compressed natural gas underground storage well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650366U true CN201650366U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020157970XU Expired - Lifetime CN201650366U (en) | 2010-04-13 | 2010-04-13 | Bottle type compressed natural gas underground storage well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650366U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155604A (en) * | 2010-12-31 | 2011-08-17 | 盛泽能源技术有限公司 | Large-aperture compressed natural gas storage well and installation method thereof |
| CN102230566A (en) * | 2011-05-23 | 2011-11-02 | 盛泽能源技术有限公司 | Multi-bottle combined large-caliber compressed natural gas storage well |
| CN102829320A (en) * | 2012-09-10 | 2012-12-19 | 盛泽能源技术有限公司 | Intelligent sensing large compressed natural gas bomb type antiexplosion pressure-relief underground gas storage well |
| CN108758322A (en) * | 2018-05-24 | 2018-11-06 | 燕山大学 | The hydrate state underground storage system of natural gas |
| CN109356650A (en) * | 2017-10-25 | 2019-02-19 | 中国矿业大学 | A method of compressed-air energy storage is carried out using coal mine down-hole tunnel |
| CN114636092A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Non-metal lining gas storage well for storing natural gas or hydrogen-doped natural gas and installation method |
-
2010
- 2010-04-13 CN CN201020157970XU patent/CN201650366U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155604A (en) * | 2010-12-31 | 2011-08-17 | 盛泽能源技术有限公司 | Large-aperture compressed natural gas storage well and installation method thereof |
| CN102155604B (en) * | 2010-12-31 | 2013-03-20 | 盛泽能源技术有限公司 | Large-aperture compressed natural gas storage well and installation method thereof |
| CN102230566A (en) * | 2011-05-23 | 2011-11-02 | 盛泽能源技术有限公司 | Multi-bottle combined large-caliber compressed natural gas storage well |
| CN102829320A (en) * | 2012-09-10 | 2012-12-19 | 盛泽能源技术有限公司 | Intelligent sensing large compressed natural gas bomb type antiexplosion pressure-relief underground gas storage well |
| CN102829320B (en) * | 2012-09-10 | 2014-07-16 | 盛泽能源技术有限公司 | Intelligent sensing large compressed natural gas bomb type antiexplosion pressure-relief underground gas storage well |
| CN109356650A (en) * | 2017-10-25 | 2019-02-19 | 中国矿业大学 | A method of compressed-air energy storage is carried out using coal mine down-hole tunnel |
| CN109356650B (en) * | 2017-10-25 | 2021-03-26 | 中国矿业大学 | Method for storing energy by utilizing compressed air in underground coal mine roadway |
| CN108758322A (en) * | 2018-05-24 | 2018-11-06 | 燕山大学 | The hydrate state underground storage system of natural gas |
| CN114636092A (en) * | 2022-05-17 | 2022-06-17 | 浙江大学 | Non-metal lining gas storage well for storing natural gas or hydrogen-doped natural gas and installation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |