CN110107357A - A kind of underground natural gas storage tank and its concrete parting adaptively spring back pressurized gland bush - Google Patents
A kind of underground natural gas storage tank and its concrete parting adaptively spring back pressurized gland bush Download PDFInfo
- Publication number
- CN110107357A CN110107357A CN201910343154.3A CN201910343154A CN110107357A CN 110107357 A CN110107357 A CN 110107357A CN 201910343154 A CN201910343154 A CN 201910343154A CN 110107357 A CN110107357 A CN 110107357A
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- Prior art keywords
- groove
- sealing
- concrete
- parting
- lining
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/16—Modification of mine passages or chambers for storage purposes, especially for liquids or gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of underground natural gas storage tanks and its concrete parting adaptively to spring back pressurized gland bush.The pressurized gland bush includes the groove being arranged at concrete lining parting sealing, and middle part indent is simultaneously arranged in outside in groove and both ends stretching groove and fixes the sealing plate in concrete lining；Filling material is filled between the sealing plate and groove wall surface, the groove is equipped with multiple groups spring, and the spring is for pressing the sealing plate, so that the filling material is pressed at the sealing of the concrete lining parting.Sealing device of the invention solves the problems such as lining seam encapsulation process structure long term seal efficiency is insufficient and installation and replacement are slow.
Description
Technical field
The present invention relates to a kind of underground natural gas storage tanks and its concrete parting adaptively to spring back pressurized gland bush, especially relates to
And it is a kind of for compressed air energy storage station cave type underground natural gas storage tank engineering, extensive natural gas underground cave gas storage engineering
The sealing device of equal fields high pressure gas, the dress being sealed in particular for the high pressure compressed gas of the frequent alternation variation of pressure
It sets.
Background technique
Under the conditions of the prior art, cave type underground natural gas storage tank uses low-permeability or impervious material (steel plate, rubber slab
Or plastic plate) material as sealant, the lining cutting after sealant generally uses one-piece casting concrete as the biography of sealant
Power structure sheaf.
The pressure of compressed air underground natural gas storage tank is generally up to 7.0-10.0MPa, even higher, and natural gas underground gas storage
Pressure in library then may be up to 20MPa or more.Under the effect of huge gas storage internal pressure, the concrete lining of gas storage goes out
Existing crack is inevitable；On the one hand the generation of distress in concrete is unfavorable for the durability of sealant structure safety, another party
Integral sealing effect in face of gas storage also adversely affects.Concrete lining uses the side of presplitting parting processing after sealant
Formula can be greatly lowered or eliminate the tensile stress in concrete lining, to utmostly avoid concrete-lined cracking.
To prevent high pressure gas from leaking from parting position, underground natural gas storage tank is other than installing continuous integral sealing layer, also
Backfill is handled between being stitched at parting, is generally used rubber to the backfill material of concrete parting encapsulation process both at home and abroad at present
The advantages of organic materials such as glue or plastics, these materials is that resilience performance is good in a short time, and leakproofness is also preferable.Studies have shown that nothing
By being the organic materials such as rubber or plastics as sealant, or as filler material between seam, ageing resistance is weak, durable
Property it is poor, its resilience performance of working condition decaying of gas pressure alternately variation is fast in gas storage, and parting between lining cutting is caused to exist
The leakproofness for opening working condition weakens, and even results in underground natural gas storage tank seal failure.On the other hand, conventional concrete lining cutting point
It stitches that sealing structure installation and replacement difficulty is big, and the period is long, influences engineering and quickly put into production operation.
Summary of the invention
For overcome underground natural gas storage tank concrete lining parting alternately under folding condition parting structure organic filler material and
Leakproofness Problem of Failure caused by loss of elasticity after sealing plate is used for a long time, while accelerating underground natural gas storage tank concrete lining parting
Installation speed, the present invention is intended to provide a kind of underground natural gas storage tank and its concrete parting adaptively spring back pressurized gland bush,
The sealing device can solve (underground storage) lining seam encapsulation process structure long term seal efficiency deficiency and installation and replacement
The problems such as slow.
To achieve the goals above, the technical scheme adopted by the invention is that:
A kind of concrete parting adaptively springs back pressurized gland bush, recessed at concrete lining parting sealing including being arranged in
Slot, middle part indent are simultaneously arranged in outside in groove and both ends stretching groove and fix the sealing plate in concrete lining；
The sealing plate is as level-one leakage preventing structure, filled with as second level leakage preventing structure between the sealing plate and groove wall surface
Filling material, the preferably described filling material are dilatancy clay；
The groove is equipped with multiple groups spring, and the spring is for pressing the sealing plate, so that the coagulation is pressed in the filling material
At the sealing of native lining seam.
Backfilling material resilience performance reduces very between stitching under alternately folding condition this invention removes concrete lining parting
To disappearance to the adverse effect of parting sealing structure, while the low-permeability of the concrete between precracking can be made full use of to make
Defence line is sealed for the second of underground natural gas storage tank, concrete parting has been obviously improved and has adaptively sprung back the autonomous of pressurized gland bush
Spring back sealing characteristics.
According to an embodiment of the invention, can also make further optimization to the present invention, the following are the skills formed after optimization
Art scheme:
Preferred embodiment in accordance with the present invention, the groove inner wide and outer narrow, and be respectively provided with one at left and right sides of groove and be located at
Card slot in concrete lining, the middle part of the sealing plate is recessed into groove and matches with the shape of the groove, described close
The both ends of sealing plate, which are stretched out after groove after secondary bending and are inserted into, to be fixed in the card slot.Further, wherein one
In a preferred embodiment, the sealing plate is symmetrical structure, which includes
It is located at the primary sealing area at middle part, which is bonded with groove slot bottom；
The secondary sealing area being located at left and right sides of primary sealing area, the secondary sealing area are bonded with groove cell wall；
The third sealing surface being located on the outside of secondary sealing area, the third sealing surface are bonded with concrete lining；And
The 4th sealing surface being located on the outside of third sealing surface, the 4th sealing surface are inserted into the card slot；
Two secondary sealing areas in splayed be arranged, and between the primary sealing area and groove slot bottom, secondary sealing area
Between groove cell wall, it is filled with the filling material between third sealing surface and concrete lining, is also filled in the card slot
There is the filling material.
In order to guarantee that sealing plate presses the filling material always, so that filling material seals the lining seam, it is described
Spring is divided into the first compressed spring and the second compressed spring, which is vertically arranged with respect to the second compressed spring, and
The both ends for the first compressed spring being laterally arranged are pressed on the sealing plate, are set with sleeve outside first compressed spring,
One end of the second longitudinally disposed compressed spring is pressed on the outer wall of the sleeve, and the other end is pressed on the sealing plate.
In order to further increase the barrier performance of concrete lining parting, the inside of the concrete lining parting is equipped with
Three-level leakage preventing structure；It is preferred that the three-level leakage preventing structure is the moisture expantion type clay stick being vertically arranged.It is anti-by three-level as a result,
Structure is seeped, thoroughly gas is avoided to leak along lining seam.
Preferably, the groove is wide outside and narrow inside, and outer width is 80-140mm, and the groove depth of inner width 100-150mm, groove are
80-100mm。
It sees on the whole, the sealing plate is integrally in zigzag shape.Sealing plate is symmetrical structure.Sealing plate is preferably steel plate.
Based on the same inventive concept, the present invention also provides a kind of underground natural gas storage tanks comprising gas storage country rock is close to
The muti-piece concrete lining that the gas storage country rock inner wall is built forms concrete lining between adjacent two block concretes lining cutting
Parting；It is characterized in that, the junction of side of the adjacent two block concretes lining cutting towards gas storage region is equipped with described mix
Solidifying soil parting adaptively springs back pressurized gland bush.
Preferably, muti-piece concrete lining surrounds to form tubular structure, and it is close that the concrete parting adaptively springs back pressurization
Seal apparatus is circumferentially distributed at the concrete lining parting of the inner wall of the tubular structure.
In order to further increase barrier performance, the concrete lining is covered towards gas storage region side by integral sealing layer
Lid.
Compared with prior art, the beneficial effects of the present invention are:
1. concrete lining parting sealing structure material proposed by the present invention all uses inorganic metal or nonmetallic materials, can
To overcome conventional hermetic material to use the disadvantage of organic high-elastic sealing material (rubber or plastic plate etc.) durability deficiency.
2. sealing structure of the invention realizes special-shaped stainless steel using compressed spring built in special-shaped stainless steel metal sealing plate
The adaptive rebound supercharging effect of metal sealing plate overcomes after conventional U-shaped stainless steel metal sealing plate is used for a long time elasticity not
The disadvantage of foot.
3. sealing structure of the invention is arranged in outside structural body, replacement installation can be convenient without damaging original structure (one
As sealing stop being arranged in structure sheaf of depressed structure).
4. design of Sealing Structure of the invention is reasonable, structure is simple, and speed of application is fast, easy to operate.
5. the present invention provides another technical support for the progress of the extensive underground natural gas storage tank engineering sealing technique of promotion.
Detailed description of the invention
Fig. 1 is the structure principle chart of one embodiment of the invention；
Fig. 2 is lining seam leakage preventing structure schematic diagram in Fig. 1；
Fig. 3 is the structural schematic diagram of sealing plate of the invention.
In figure
The filling of 1- lining seam；2- lining seam；3- integral sealing layer；4- concrete lining；5- leveling concrete；6- gas storage
Country rock；7- sealing plate；The first compressed spring of 8-；9- sleeve；The second compressed spring of 10-；11- dilatancy clay；12- card slot；13-
Hygro-expansivity clay stick；14- groove；711- primary sealing area；712- secondary sealing area；713- third sealing surface；714-
Four sealing surfaces.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.For sake of convenience, hereinafter as occurred
"upper", "lower", "left", "right" printed words only indicate consistent with the upper and lower, left and right direction of attached drawing itself, do not play limit to structure
It is set for using.
A kind of underground cave gas storage concrete lining parting Fast Installation sealing device, as shown in Figures 2 and 3, including sets
Set the groove 14 at 2 sealing of concrete lining parting, 71 indent of middle part is simultaneously arranged in groove 14 and groove is stretched out at both ends
Outside 14 and fix the sealing plate 7 in concrete lining 4.The sealing plate 7 is used as level-one leakage preventing structure, the sealing plate 7 with it is recessed
Filled with the filling material as second level leakage preventing structure between 14 wall surface of slot, filling material is preferably dilatancy clay 11.
As shown in Fig. 2, the groove 14 is equipped with multiple groups spring, the spring is for pressing the sealing plate 7, so that described fill
Filler presses at the sealing of the concrete lining parting 2.The spring is divided into the first compressed spring 8 and the second compressed spring
10, both ends of first compressed spring 8 with respect to the first compressed spring 8 that the second compressed spring 10 is vertically arranged, and is laterally arranged
It is pressed on the sealing plate 7, is set with sleeve 9 outside first compressed spring 8, the second longitudinally disposed compressed spring 10
One end is pressed on the outer wall of the sleeve 9, and the other end is pressed on the sealing plate 7.
As shown in figure 3, the sealing plate 7 is symmetrical structure, which has the primary sealing area positioned at middle part 71
711, the secondary sealing area 712 positioned at 711 left and right sides of primary sealing area, the third sealing positioned at 712 outside of secondary sealing area
Face 713 and the 4th sealing surface 714 on the outside of third sealing surface 713；Wherein primary sealing area 711 and 14 slot bottom of groove
Fitting, secondary sealing area 12 are bonded with 14 cell wall of groove, and third sealing surface 713 is bonded with concrete lining 4, the 4th sealing surface
In the 714 insertion card slots 12.On the whole, two secondary sealing areas 712 are arranged in splayed, and first sealing
Between 14 slot bottom of face 711 and groove, between 14 cell wall of secondary sealing area 712 and groove, third sealing surface 713 and concrete lining
It is filled with the filling material between 4, is also filled with the filling material in the card slot 12.
As shown in Fig. 2, groove 14,14 inner wide and outer narrow of groove, groove 14 is arranged towards gas storage side in concrete lining
Outer width 80-140mm, inner width 100-150mm, 14 depth 80-100mm of groove.The sealing plate 7 of the anti-air infiltration of installation in groove 14, this is close
Sealing plate is special-shaped stainless steel plate, and whole is in several fonts.Tool is filled between groove 14 and special-shaped stainless steel metal sealing plate
There is the dilatancy clay 11 of low-permeability, right angle crotch is arranged in 7 two side ends of sealing plate, and right angle crotch is embedded in small-sized pre- in lining cutting
In fabrication slot 12.Under the pressure effect of special-shaped stainless steel metal sealing plate gas in gas storage, special-shaped stainless steel metal is squeezed
Dilatancy clay between sealing plate and concrete lining 4, so that clay filler material is by densification, to realize concrete parting 2
Sealing function.Two groups of compressed springs of vertical and horizontal (8 He of the first compressed spring is installed in special-shaped stainless steel metal sealing plate 7
Second compressed spring 10), effect is that special-shaped stainless steel metal is improved using the compression energy stored in security process in the spring
The rebound boost performance of the U-shaped portion of sealing plate 7 point, it is ensured that kept between special-shaped stainless steel metal sealing plate 7 and concrete lining 4
It is in close contact, prevents the concrete parting 2 under gas storage high pressure conditions from opening caused 14 spacing of groove increase, caused sealing
The gas infiltration that structure contact is not tight and generates.
For the reliability for improving sealing effect, hygro-expansivity clay stick 13 is installed inside concrete fragment lining seam 2,
It is leaked using the further tissue gas of the hypotonic performance of its moisture expantion along lining seam 2.
The thickness of waterstop sealing plate 7 is generally 3mm, width G T.GT.GT 300mm, and length is sized generally to that 3 meters long or 6 meters long.
It is close to 6 inner wall of gas storage country rock as shown in Figure 1, including gas storage country rock 6 and builds in a kind of underground natural gas storage tank
The muti-piece concrete lining 4 built forms concrete lining parting 2 between adjacent two block concretes lining cutting 4；The concrete lining
4 are covered towards gas storage region side by integral sealing layer 3.The adjacent two block concretes lining cutting 4 towards the one of gas storage region
The junction of side is equipped with above-mentioned concrete parting and adaptively springs back pressurized gland bush.Muti-piece concrete lining 4 surrounds to be formed
Tubular structure, the concrete parting adaptively spring back the inner wall that pressurized gland bush is circumferentially distributed in the tubular structure
At concrete lining parting 2.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the invention, after the present invention has been read, those skilled in the art are to various equivalent forms of the invention
Modification each fall within the application range as defined in the appended claims.
Claims (10)
1. a kind of concrete parting adaptively springs back pressurized gland bush, including is arranged at concrete lining parting (2) sealing
Groove (14), middle part indent is simultaneously arranged in the groove (14) and both ends are stretched out groove (14) outside and fixed in concrete lining
Build the sealing plate (7) on (4)；
The sealing plate (7) is used as level-one leakage preventing structure, filled with as second level between the sealing plate (7) and groove (14) wall surface
The filling material of leakage preventing structure, the preferably described filling material are dilatancy clay (11)；
The groove (14) is equipped with multiple groups spring, and the spring is for pressing the sealing plate (7), so that institute is pressed in the filling material
At the sealing for stating concrete lining parting (2).
2. concrete parting according to claim 1 adaptively springs back pressurized gland bush, which is characterized in that the groove
(14) inner wide and outer narrow, and the card slot (12) being located on concrete lining (4) is respectively provided at left and right sides of groove (14)；
The middle part (71) of the sealing plate (7) is recessed into groove (14) and matches with the shape of the groove (14), described close
The both ends of sealing plate (7), which are stretched out after groove (14) after secondary bending and are inserted into, to be fixed in the card slot (12).
3. concrete parting according to claim 2 adaptively springs back pressurized gland bush, which is characterized in that the sealing
Plate (7) is symmetrical structure, which includes
It is located at the primary sealing area (711) of middle part (71), which is bonded with groove (14) slot bottom；
The secondary sealing area (712) being located at left and right sides of primary sealing area (711), the secondary sealing area (712) and groove (14)
Cell wall fitting；
The third sealing surface (713) being located on the outside of secondary sealing area (712), the third sealing surface (713) and concrete lining
(14) it is bonded；And
The 4th sealing surface (714) being located on the outside of third sealing surface (713), the 4th sealing surface (714) are inserted into the card slot
(12) in；
Two secondary sealing areas (712) are arranged in splayed, and the primary sealing area (711) and groove (14) slot bottom it
Between, fill out between secondary sealing area (712) and groove (14) cell wall, between third sealing surface (713) and concrete lining (14)
Filled with the filling material, the filling material is also filled in the card slot (12).
4. concrete parting according to claim 1 adaptively springs back pressurized gland bush, which is characterized in that the spring
It is divided into the first compressed spring (8) and the second compressed spring (10), which hangs down with respect to the second compressed spring (10)
Straight setting, and the both ends for the first compressed spring (8) being laterally arranged are pressed on the sealing plate (7), the first compression bullet
It is set with sleeve (9) outside spring (8), one end of longitudinally disposed the second compressed spring (10) is pressed on the outer wall of the sleeve (9)
On, the other end is pressed on the sealing plate (7).
5. concrete parting described in any one of -4 adaptively springs back pressurized gland bush according to claim 1, feature exists
In the inside of the concrete lining parting (2) is equipped with three-level leakage preventing structure；It is preferred that the three-level leakage preventing structure is vertical cloth
The moisture expantion type clay stick (13) set.
6. concrete parting described in any one of -4 adaptively springs back pressurized gland bush according to claim 1, feature exists
In the groove (14) is wide outside and narrow inside, and outer width is 80-140mm, and inner width 100-150mm, the groove depth of groove (14) is 80-
100mm。
7. concrete parting described in any one of -4 adaptively springs back pressurized gland bush according to claim 1, feature exists
In the sealing plate (7) is integrally in zigzag shape.
8. the muti-piece that gas storage country rock (6) inner wall is built is close in a kind of underground natural gas storage tank, including gas storage country rock (6)
Concrete lining (4) forms concrete lining parting (2) between adjacent two block concretes lining cutting (4)；It is characterized in that, described
The junction of side of the adjacent two block concretes lining cutting (4) towards gas storage region is all provided with just like any one of claim 1-7 institute
It states concrete parting and adaptively springs back pressurized gland bush.
9. underground natural gas storage tank according to claim 8, which is characterized in that muti-piece concrete lining (4) surrounds to form tubular
Structure, the concrete parting adaptively spring back the coagulation that pressurized gland bush is circumferentially distributed in the inner wall of the tubular structure
At native lining seam (2).
10. underground natural gas storage tank according to claim 8 or claim 9, which is characterized in that the concrete lining (4) is towards gas storage
Region side is covered by integral sealing layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343154.3A CN110107357B (en) | 2019-04-26 | 2019-04-26 | Underground gas storage and concrete parting self-adaptive resilience pressurization sealing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343154.3A CN110107357B (en) | 2019-04-26 | 2019-04-26 | Underground gas storage and concrete parting self-adaptive resilience pressurization sealing device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107357A true CN110107357A (en) | 2019-08-09 |
| CN110107357B CN110107357B (en) | 2021-02-26 |
Family
ID=67486917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910343154.3A Active CN110107357B (en) | 2019-04-26 | 2019-04-26 | Underground gas storage and concrete parting self-adaptive resilience pressurization sealing device thereof |
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| Country | Link |
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| CN (1) | CN110107357B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324647A (en) * | 2022-08-26 | 2022-11-11 | 中国矿业大学 | Underground rock cavern gas storage composite lining sealing structure and construction method thereof |
| CN115854257A (en) * | 2022-12-15 | 2023-03-28 | 中国电建集团西北勘测设计研究院有限公司 | Gas storage sealing device and method |
| CN117569644A (en) * | 2024-01-17 | 2024-02-20 | 中国电建集团西北勘测设计研究院有限公司 | Glue injection mold and glue injection method |
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| CN103452192A (en) * | 2013-08-20 | 2013-12-18 | 广西建工集团第三建筑工程有限责任公司 | Waterproof structure of expansion joint mainly used for discharging water |
| CN203420217U (en) * | 2013-08-06 | 2014-02-05 | 安徽尚德科技有限公司 | Bridge expansion device with stainless springs pre-tightened and sealed |
| CN205578004U (en) * | 2016-01-28 | 2016-09-14 | 杭州建工建材有限公司 | Tunnel segment connection structure of high strength |
| CN208533743U (en) * | 2018-07-06 | 2019-02-22 | 珠海华兴防水科技有限公司 | Assembled self-adhering rubber waterstop |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202791331U (en) * | 2012-08-03 | 2013-03-13 | 中国水电顾问集团华东勘测设计研究院 | Composite air-tight structure of underground gas storage cavern |
| CN203420217U (en) * | 2013-08-06 | 2014-02-05 | 安徽尚德科技有限公司 | Bridge expansion device with stainless springs pre-tightened and sealed |
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| CN115324647A (en) * | 2022-08-26 | 2022-11-11 | 中国矿业大学 | Underground rock cavern gas storage composite lining sealing structure and construction method thereof |
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| CN117569644A (en) * | 2024-01-17 | 2024-02-20 | 中国电建集团西北勘测设计研究院有限公司 | Glue injection mold and glue injection method |
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| Publication number | Publication date |
|---|---|
| CN110107357B (en) | 2021-02-26 |
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