CN201326864Y - Direct-buried external pressure compensator - Google Patents
Direct-buried external pressure compensator Download PDFInfo
- Publication number
- CN201326864Y CN201326864Y CNU2008201243087U CN200820124308U CN201326864Y CN 201326864 Y CN201326864 Y CN 201326864Y CN U2008201243087 U CNU2008201243087 U CN U2008201243087U CN 200820124308 U CN200820124308 U CN 200820124308U CN 201326864 Y CN201326864 Y CN 201326864Y
- Authority
- CN
- China
- Prior art keywords
- ring
- external pressure
- stuffing box
- direct
- corrugated pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000012791 sliding layer Substances 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Mechanical Sealing (AREA)
- Joints Allowing Movement (AREA)
Abstract
A direct-buried external pressure compensator belongs to the field of expansion compensators for pipelines and solves the problem that the compensator can be directly buried in soil; the movable end of the body (9) where the corrugated pipe (14) working under the external pressure state is located is in an annular movable sealing structure; an outward opening type stuffing box (2) is arranged on a right end ring (1) of the movable end of the body (9), a sealing stuffing (3) compressed by a sealing flange (4) is arranged on the outward opening type stuffing box, and in application, dynamic sealing axial sliding is generated between the sealing stuffing (3) and a sliding layer (6) arranged on the outer wall of a right connecting pipe (7); the corrugated pipe can prevent water and other liquid-phase media in the soil from entering the corrugated pipe working under the external pressure state, so that the corrugated pipe is not easy to corrode, the performance and the efficacy of the corrugated pipe are not influenced, the corrugated pipe is convenient to install and use, the service life of the compensator is prolonged, and the investment is reduced.
Description
Technical field
The utility model belongs to the expansion compensation apparatus field that pipeline is used, and relates to a kind of direct-burried external pressure compensator.
Background technique
Direct-burried external pressure compensator of the prior art, mostly need to be provided with the special-purpose ground well of compensator, cumbersome, if directly be embedded in the earth, because the straight-through atmosphere of the movable end of its guide chamber, so the water in the earth and other liquid phase mediums and solid matter are easy to enter in the compensator, thereby, to the inside of the bellows of work down of pressure condition outside, corrosivity is bigger, and can have a strong impact on performance, the effect of compensator.
Summary of the invention
The technical problem that solves:
Repack the movable end of compensator body into the ring-type movable sealing structure, can overcome the deficiencies in the prior art, avoid water in the earth and other liquid phase mediums and solid matter to enter into outside the pressure condition inside of the bellows of work down, bellows is difficult for being corroded, not only its performance, effect are unaffected, be convenient to simultaneously install and use, and prolong the working life of compensator, reduce and drop into.
The technological scheme that adopts:
A kind of direct-burried external pressure compensator, adapter with band by-pass hole, have the body of forming by end ring, outer casing and guide ring in the adapter, the bellows of the work of being contained under the intrinsic pressure condition outside and in the guide shell established, it is characterized in that: the movable end of body is movable sealing structure in the form of a ring.
Beneficial effect:
Compensator can directly be imbedded in the earth, need not special-purpose ground well, because the movable end of body is movable sealing structure in the form of a ring, can avoid water in the earth and other liquid phase mediums and solid matter to enter into outside the pressure condition inside of the bellows of work down, therefore, bellows is difficult for being corroded, not only its performance, effect are unaffected, be convenient to simultaneously install and use, and prolong the working life of compensator, reduce and drop into.
Description of drawings
Fig. 1, main assembly structural representation;
Embodiment
Further explanation in detail in conjunction with the accompanying drawings; Arrow is shown the direction of media flow among the figure;
Among the figure, the outer casing of 10-, 11-left end ring, 12-guide ring, 13-by-pass hole, 14-bellows, 15-guide shell;
As shown in Figure 1, the movable end of body 9 movable sealing structure in the form of a ring is, open form stuffing box 2 outside on the peripheral position of the center slide opening of the right-hand member ring 1 of movable end, having, the stuffing box packing 3 that compresses by supporting sealing flange 4 is housed on the stuffing box 2, sealing flange 4 is contained on the outer side surface of right-hand member ring 1 by fastening piece 5, the sliding layer 6 that has one deck smooth abrasion-proof on the outer wall of movable distolateral adapter 7 is motive sealing between sliding layer 6 and the stuffing box packing 3.Sliding layer 6 is one deck stainless steel covering on the outer wall that is welded on right adapter 7.
As shown in Figure 1, stuffing box 2 is formed by the positioning ring on the outer side surface that is welded on right-hand member ring 18, and under this kind structure, sealing flange 4 is contained in by fastening piece 5 on the outer side surface of positioning ring 8, and perhaps stuffing box 2 processes with right-hand member ring 1 integral body.
In the normal use, produce motive sealing between stuffing box packing 3 and the sliding layer 6 and endwisely slip.
Claims (4)
1, a kind of direct-burried external pressure compensator, adapter with band by-pass hole, have the body of forming by end ring, outer casing and guide ring in the adapter, the bellows of the work of being contained under the intrinsic pressure condition outside and in the guide shell established, it is characterized in that: the movable end of body is movable sealing structure in the form of a ring.
2, a kind of direct-burried external pressure compensator according to claim 1, it is characterized in that: the movable end of body (9) movable sealing structure in the form of a ring is, open form stuffing box (2) outside on the peripheral position of the center slide opening of the right-hand member ring (1) of movable end, having, the stuffing box packing (3) that compresses by supporting sealing flange (4) is housed on the stuffing box (2), sealing flange (4) is contained on the outer side surface of right-hand member ring (1) by fastening piece (5), has the sliding layer (6) of one deck smooth abrasion-proof on the outer wall of movable distolateral adapter (7).
3, a kind of direct-burried external pressure compensator according to claim 2, it is characterized in that: stuffing box (2) is formed by the positioning ring on the outer side surface that is welded on right-hand member ring (1) (8), under this kind structure, sealing flange (4) is contained on the outer side surface of positioning ring (8) by fastening piece (5), and perhaps stuffing box (2) processes with right-hand member ring (1) integral body.
4, according to claim 2 or 3 described a kind of direct-burried external pressure compensators, it is characterized in that: sliding layer (6) is one deck stainless steel covering on the outer wall that is welded on right adapter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201243087U CN201326864Y (en) | 2008-12-05 | 2008-12-05 | Direct-buried external pressure compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201243087U CN201326864Y (en) | 2008-12-05 | 2008-12-05 | Direct-buried external pressure compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326864Y true CN201326864Y (en) | 2009-10-14 |
Family
ID=41178836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201243087U Expired - Fee Related CN201326864Y (en) | 2008-12-05 | 2008-12-05 | Direct-buried external pressure compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326864Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221202A (en) * | 2011-04-01 | 2011-10-19 | 张全胜 | Stainless steel three-dimensional expansion joint used for sealing high temperature ash and slag |
| CN102878381A (en) * | 2012-10-08 | 2013-01-16 | 江苏恒丰波纹管有限公司 | Maintenance-free external-pressing direct buried expansion joint |
-
2008
- 2008-12-05 CN CNU2008201243087U patent/CN201326864Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221202A (en) * | 2011-04-01 | 2011-10-19 | 张全胜 | Stainless steel three-dimensional expansion joint used for sealing high temperature ash and slag |
| CN102878381A (en) * | 2012-10-08 | 2013-01-16 | 江苏恒丰波纹管有限公司 | Maintenance-free external-pressing direct buried expansion joint |
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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: 20091014 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |