CN202812492U - Borehole wall sealing expansion joint - Google Patents
Borehole wall sealing expansion joint Download PDFInfo
- Publication number
- CN202812492U CN202812492U CN 201220308201 CN201220308201U CN202812492U CN 202812492 U CN202812492 U CN 202812492U CN 201220308201 CN201220308201 CN 201220308201 CN 201220308201 U CN201220308201 U CN 201220308201U CN 202812492 U CN202812492 U CN 202812492U
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- China
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- plate
- borehole wall
- outer sleeve
- annular plate
- inner tube
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Abstract
A borehole wall sealing expansion joint relates to the technical field of heat-supply network pipeline expansion joints. The expansion joint adopts the structure that an outer sleeve tube is coaxially sleeved at one end of an inner tube; a first annular plate is vertically arranged at the back end of the outer sleeve tube; a borehole wall is coaxially arranged outside the outer sleeve tube, and an outer sleeve sealing corrugated pipe is welded between the borehole wall and the first annular plate; a second annular plate is vertically welded on the outer wall of the inner tube at the back of the outer sleeve sealing corrugated pipe; a third annular plate is vertically arranged at the other end of the inner tube, and the outer edge of the third annular plate is welded with the end part of the borehole wall; a plurality of sections of inner tube sealing corrugated pipes fixed by welding are arranged between the third annular plate and the second annular plate; and a fourth annular plate is arranged on the rear side of the third annular plate through bolts. The expansion joint has a scientific and rational design, and can eliminate the stress between the outer sleeve tube and the borehole wall, play a role of sealing at the same time, and sequester groundwater, so that the groundwater is difficult to leak into a well chamber and water or moisture has low probability of entering the cotton insulation. Therefore, the safety of the borehole wall and tube fittings in the well room is ensured and the service life is prolonged.
Description
Technical field:
The utility model relates to heat-net-pipeline expansion joint technical field, is specifically related to a kind of Well-wall sealer expansion joint.
Background technique:
Along with the high speed development of China's urban modernization, pollution of atmosphere is more and more serious, and one of main method that addresses this problem is: ban as early as possible boiler chimney, the central heat supply of Development of Urban.At present China's urban heat supplying has entered unified heat supply period, and this can effectively use the energy and reduce urban air pollution.The hot water vapor that thermoelectricity plant produces is transported to each user of urban district by pipeline and consists of the urban heating network; because the heat-net-pipeline circuit is long, caliber is large, pressure is large; these etching problems that are erected at trench or straight buried conveyance conduit are apparent; its maintenance engineering is difficulty but also expensive not only, so anti-corrosion protection is very urgent.
The Well-wall sealer used for expansion joint is in the well of heat-net-pipeline compensator and the binding site of directly buried pipeline, but present Well-wall sealer expansion joint sealability is bad, it is indoor that underground water can leak into well, the indoor pipe fitting of the borehole wall and well can be corroded by underground water, the water that well is indoor or moisture enter in the heat-preservation cotton of expansion joint inside easily, shortened working life, and maintenance cost is high.
The model utility content:
The purpose of this utility model provides a kind of Well-wall sealer expansion joint; its design science is reasonable; play again seal action when having eliminated between outer sleeve and the borehole wall stress; completely cut off underground water; it is indoor to make it be difficult for leaking into well; and water or moisture are difficult for entering in the heat-preservation cotton, have protected the safety of the borehole wall and the indoor pipe fitting of well, have prolonged working life.
In order to solve the existing problem of background technique, the utility model is by the following technical solutions: it comprises outer sleeve, the first ring flat-plate, the overcoat seal bellows, the second ring flat-plate, the inner tube seal bellows, inner tube, the 3rd ring flat-plate and Fourth Ring plate, the outer sleeve coaxial sleeve is connected on the end outside of inner tube, and the rear end of outer sleeve is vertically installed with the first ring flat-plate, the outer sleeve outside is coaxially arranged with the borehole wall, and be welded with the overcoat seal bellows between the borehole wall and the first ring flat-plate, the outer wall of inner tube of overcoat seal bellows rear side is vertically welded with the second ring flat-plate, the other end outer wall vertical of inner tube is provided with the 3rd ring flat-plate, and the outer rim of the 3rd ring flat-plate and the welding of the end of the borehole wall, be provided with the several sections of inner tube seal bellowss that are welded and fixed between the 3rd ring flat-plate and the second ring flat-plate, the 3rd ring flat-plate rear side is provided with the Fourth Ring plate by bolt.
Be provided with sealing gasket between described the 3rd ring flat-plate and the Fourth Ring plate.
Principle of the present utility model is: be connected by the overcoat seal bellows between outer sleeve and the borehole wall, can compensate the axial displacement of outer sleeve, eliminate the stress between outer sleeve and the borehole wall, play simultaneously seal action, it is indoor that isolated underground water makes it can not leak into well.When inner tube was moved with respect to outer pillar, the inner tube seal bellows belonged to elastic element, has compensated the displacement amount of inner tube, has played simultaneously seal action.
The utility model design science is reasonable, plays again seal action when having eliminated between outer sleeve and the borehole wall stress, has completely cut off underground water; it is indoor to make it be difficult for leaking into well; and water or moisture are difficult for entering in the heat-preservation cotton, have protected the safety of the borehole wall and the indoor pipe fitting of well, have prolonged working life.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Embodiment:
With reference to Fig. 1, this embodiment is by the following technical solutions: it comprises outer sleeve 2, the first ring flat-plate 3, overcoat seal bellows 4, the second ring flat-plate 5, inner tube seal bellows 6, inner tube 7, the 3rd ring flat-plate 8 and Fourth Ring plate 10, outer sleeve 2 coaxial sleeves are connected on the end outside of inner tube 7, and the rear end of outer sleeve 2 is vertically installed with the first ring flat-plate 3, outer sleeve 2 outsides are coaxially arranged with the borehole wall 1, and be welded with overcoat seal bellows 4 between the borehole wall 1 and the first ring flat-plate 3, inner tube 7 outer wall vertical of overcoat seal bellows 4 rear sides are welded with the second ring flat-plate 5, the other end outer wall vertical of inner tube 7 is provided with the 3rd ring flat-plate 8, and the end of the outer rim of the 3rd ring flat-plate 8 and the borehole wall 1 welding, be provided with the several sections of inner tube seal bellows that is welded and fixed 6, the three ring flat-plates 8 rear sides between the 3rd ring flat-plate 8 and the second ring flat-plate 5 and be provided with Fourth Ring plate 10 by bolt.
Be provided with sealing gasket 9 between described the 3rd ring flat-plate 8 and the Fourth Ring plate 10.
The principle of this embodiment is: be connected by overcoat seal bellows 4 between outer sleeve 2 and the borehole wall 1, can compensate the axial displacement of outer sleeve 2, eliminate the stress between outer sleeve 2 and the borehole wall 1, play simultaneously seal action, it is indoor that isolated underground water makes it can not leak into well.When inner tube 7 was moved with respect to outer pillar, inner tube seal bellows 6 belonged to elastic element, has compensated the displacement amount of inner tube 7, has played simultaneously seal action.
This embodiment design science is reasonable; play again seal action when having eliminated between outer sleeve and the borehole wall stress; completely cut off underground water; it is indoor to make it be difficult for leaking into well; and water or moisture are difficult for entering in the heat-preservation cotton; protect the safety of the borehole wall and the indoor pipe fitting of well, prolonged working life.
Claims (2)
1. Well-wall sealer expansion joint, it is characterized in that it comprises outer sleeve (2), the first ring flat-plate (3), overcoat seal bellows (4), the second ring flat-plate (5), inner tube seal bellows (6), inner tube (7), the 3rd ring flat-plate (8) and Fourth Ring plate (10), outer sleeve (2) coaxial sleeve is connected on the end outside of inner tube (7), and the rear end of outer sleeve (2) is vertically installed with the first ring flat-plate (3), outer sleeve (2) outside is coaxially arranged with the borehole wall (1), and be welded with overcoat seal bellows (4) between the borehole wall (1) and the first ring flat-plate (3), inner tube (7) outer wall vertical of overcoat seal bellows (4) rear side is welded with the second ring flat-plate (5), the other end outer wall vertical of inner tube (7) is provided with the 3rd ring flat-plate (8), and the end of the outer rim of the 3rd ring flat-plate (8) and the borehole wall (1) welding, be provided with the several sections of inner tube seal bellowss (6) that are welded and fixed between the 3rd ring flat-plate (8) and the second ring flat-plate (5), the 3rd ring flat-plate (8) rear side is provided with Fourth Ring plate (10) by bolt.
2. Well-wall sealer expansion joint according to claim 1 is characterized in that being provided with sealing gasket (9) between described the 3rd ring flat-plate (8) and the Fourth Ring plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308201 CN202812492U (en) | 2012-06-29 | 2012-06-29 | Borehole wall sealing expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308201 CN202812492U (en) | 2012-06-29 | 2012-06-29 | Borehole wall sealing expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812492U true CN202812492U (en) | 2013-03-20 |
Family
ID=47871362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308201 Expired - Fee Related CN202812492U (en) | 2012-06-29 | 2012-06-29 | Borehole wall sealing expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487864A (en) * | 2018-11-16 | 2019-03-19 | 通号工程局集团有限公司 | A kind of architectural engineering basement anti-leakage structure |
-
2012
- 2012-06-29 CN CN 201220308201 patent/CN202812492U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487864A (en) * | 2018-11-16 | 2019-03-19 | 通号工程局集团有限公司 | A kind of architectural engineering basement anti-leakage structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20170629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |