CN104633363A - Maintenance-free sleeve compensator - Google Patents
Maintenance-free sleeve compensator Download PDFInfo
- Publication number
- CN104633363A CN104633363A CN201510108492.0A CN201510108492A CN104633363A CN 104633363 A CN104633363 A CN 104633363A CN 201510108492 A CN201510108492 A CN 201510108492A CN 104633363 A CN104633363 A CN 104633363A
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- box gland
- pipe
- sleeve
- outer tube
- 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.)
- Pending
Links
Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to a maintenance-free sleeve compensator for compensating the thermal expansion and chilling shrinkage of a hot water pipeline. The maintenance-free sleeve compensator comprises an outer pipe (1) and an inner pipe (4), wherein the left end of the inner pipe stretches into a pipe body (2) of the outer pipe, and a sealing sleeve (6) is sheathed on the inner pipe. The maintenance-free sleeve compensator is characterized in that the sealing sleeve is made of a silicone rubber material, one end of the sealing sleeve is connected at the left end of the inner pipe by a tightening device in a sealing manner, a clearance is left between the outer wall of the sealing sleeve and the pipe body of the outer pipe, and a loop body (8) extending from the other end of the sealing sleeve radially is connected to a flange (3) at the right end of the outer pipe. The maintenance-free sleeve compensator has the characteristics that two ends of the sealing sleeve are fixedly connected with the outer pipe and the inner pipe in a sealing manner respectively, so that when the inner pipe and the outer pipe move oppositely, the middle part of the sealing sleeve is abraded, two connecting ends of the sealing sleeve cannot be abraded, and after the middle part of the sealing sleeve is abraded, the sealing property of the sleeve compensator can be still kept; and compared with the maintenance-free sleeve compensator in the prior art, the maintenance-free sleeve compensator is maintenance-free in sealing property within a service life.
Description
Technical field
The present invention relates to a kind of for compensating the non-maintaining sleeve compensator that hot-water line diatom expands, it is serially connected on hot water pipeline, its structure comprises the inner and outer tubes allowing fluid pass through, and when heat distribution pipeline generation line expands, inner and outer tubes realize the compensation of expanding to line by relative movement.
Background technique
The structure of existing sleeve expansion joint generally comprises inner and outer tubes, interior pipe is inserted in outer tube, is provided with stuffing box packing between interior pipe and outer tube, and the end of inner and outer tubes is connected on heat distribution pipeline, when hot water pipeline generation line expands, inner and outer tubes realize the compensation of expanding to line by relative movement; Its deficiency is, the relative movement of interior pipe and outer tube can make filler generation wearing and tearing cause sealability to decline; When pipeline generation line expands in addition, its direction of displacement and the relative movement direction of sleeve expansion joint inner and outer tubes are difficult to ensure consistent, make stuffing box packing friction amesiality, the wearing and tearing of filler are aggravated, add maintenance times, also shorten the working life of sleeve expansion joint simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of non-maintaining sleeve compensator, after its seal element weares and teares, still can keep the sealability of sleeve expansion joint, eliminate the maintenance work to sleeve expansion joint sealability in running, and the working life of sleeve expansion joint can be improved.
Technological scheme of the present invention is, non-maintaining sleeve compensator comprises outer tube 1, interior pipe 4, the left end of interior pipe is stretched in the pipe shaft 2 of outer tube, on interior pipe, cover has stuffing box gland 6, it is characterized in that, stuffing box gland is made up of silicone rubber material, and one end fastening device of stuffing box gland is sealedly and fixedly connected at the left end of interior pipe, leave gap between the outer wall of stuffing box gland and the pipe shaft of outer tube, the shape at the middle part of stuffing box gland can be Straight and also can be corrugated; The other end of stuffing box gland radially extends a ring body 8, and also cover has disk body 5 on inner pipe, and the ring body of disk body and stuffing box gland is adjacent, and multiple hex head bolt 9 is through ring body 8, disk body 5, and one end of bolt 9 is tightened on the flange 3 of outer tube right-hand member.
Feature of the present invention is, the two ends of stuffing box gland are fixedly connected with the interior seal of tube with outer tube respectively, when the generation relative movement of interior pipe and outer tube, the part of wearing and tearing is at the middle part of stuffing box gland, two connecting ends of stuffing box gland can not wear and tear, after wearing and tearing in the middle part of stuffing box gland, still can keep the sealability of sleeve expansion joint; When managing the generation relative movement with outer tube in addition, the middle part of stuffing box gland is stretched vertically on inner pipe thereupon or contracts, frictional force between the scalable part of stuffing box gland and interior pipe is less, substantially reduces the wearing and tearing of stuffing box gland, ensure that the design service life of sleeve compensator; Compared with prior art non-maintaining sleeve compensator can realize the non-maintaining of sealability within its working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark in accompanying drawing represents respectively: pipe, 5-disk body, 6-stuffing box gland, 7-fastening device, 8-ring body, 9-hex head bolt, 10-annulus in 1-outer tube, 2-pipe shaft, 3-flange, 4-.
Embodiment
Now contrast accompanying drawing and the specific embodiment of the present invention is described.
Non-maintaining sleeve compensator comprises outer tube 1, interior pipe 4, the left end of interior pipe is stretched in the pipe shaft 2 of outer tube, on interior pipe, cover has stuffing box gland 6, it is characterized in that, stuffing box gland is made up of silicone rubber material, and one end fastening device of stuffing box gland is sealedly and fixedly connected at the left end of interior pipe, leaves gap between the outer wall of stuffing box gland and the pipe shaft of outer tube, the other end of stuffing box gland radially extends a ring body 8, and the shape at the middle part of stuffing box gland can be Straight and also can be corrugated; On interior pipe, also cover has disk body 5, and the ring body of disk body and stuffing box gland is adjacent, and multiple hex head bolt 9 is through ring body 8, disk body 5, and one end of bolt 9 is tightened on the flange 3 of outer tube right-hand member, and screwing bolts makes the sealing of the ring body of stuffing box gland be fixed on the flange of outer tube right-hand member.Described fastening device can be steel wire clip or for strangle around steel wire.
For reducing pressure fluid washing away stuffing box gland outer wall, radially extend a flange at the left end of interior pipe, the external diameter of flange matches with the tube body diameter of outer tube.For ensureing the alignment of outer tube and interior pipe, reduce the probability of stuffing box gland uneven wear, the flange periphery of outer tube extends an annulus 10 to the right, and the internal diameter of annulus matches with the external diameter of disk body 5.
For improve stuffing box gland resistance to pressure and better by stuffing box gland in fixing on pipe, the inner circle of described disk body 5 extends one section of body vertically, body puts in stuffing box gland, be positioned at body upper sleeve gasket part and be also provided with fastening device, the cylindrical of body is provided with the groove that the wall of stuffing box gland can be made recessed, body on the right side of the flange of interior pipe is provided with one section of bump, one end of stuffing box gland is enclosed within this bump, the external diameter of described bump is equal with the cover body diameter of disk body 5, the cylindrical of described bump is also provided with the groove that the wall of stuffing box gland can be made recessed, the shape at the middle part of stuffing box gland can be Straight and also can be corrugated, adopts the corrugated telescopicing performance improving stuffing box gland.
The length (length namely in the middle part of stuffing box gland) of the scalable part of stuffing box gland should be greater than the extreme length of compensated pipeline when line occurring and expanding, select the length of the scalable part of stuffing box gland be compensations pipeline 3 to 5 times of extreme length when there is line expansion; Stuffing box gland is made up of silicone rubber material, and silicone rubber has high temperature resistant and cold tolerance, and its Environmental Conditions temperature is-70 DEG C to 330 DEG C.When the line compensating pipeline expands, the wearing and tearing of stuffing box gland are very little, and the operating life of stuffing box gland depends on its ageing-resistant life-span, and ducted fluid makes stuffing box gland not easily aging from the impact of light, oxygen, and therefore its operating life can reach more than 10 years.
Claims (3)
1. a non-maintaining sleeve compensator, comprise outer tube (1), interior pipe (4), the left end of interior pipe is stretched in the pipe shaft (2) of outer tube, on interior pipe, cover has stuffing box gland (6), and it is characterized in that, stuffing box gland is made up of silicone rubber material, one end fastening device of stuffing box gland is sealedly connected on the left end of interior pipe, leave gap between the outer wall of stuffing box gland and the pipe shaft of outer tube, the other end of stuffing box gland radially extends a ring body (8), and the shape at the middle part of stuffing box gland can be Straight and also can be corrugated; Also cover has disk body (5) on inner pipe, and the ring body of disk body and stuffing box gland is adjacent, and multiple hex head bolt (9) is through ring body (8), disk body (5), and one end of bolt (9) is tightened on the flange (3) of outer tube right-hand member.
2. non-maintaining sleeve compensator according to claim 1, is characterized in that, radially extend a flange at the left end of interior pipe, the external diameter of flange matches with the tube body diameter of outer tube; The flange periphery of outer tube extends an annulus (10) to the right, and the internal diameter of annulus matches with the external diameter of disk body (5).
3. non-maintaining sleeve compensator according to claim 1, it is characterized in that, the inner circle of described disk body (5) extends one section of body vertically, body puts in stuffing box gland, be positioned at body upper sleeve gasket part and be provided with fastening device, the cylindrical of body is provided with the groove that the wall of stuffing box gland can be made recessed, the body of the left end of interior pipe is provided with one section of bump, one end of stuffing box gland is enclosed within this bump, the external diameter of described bump is equal with the cover body diameter of disk body (5), the cylindrical of described bump is also provided with the groove that the wall of stuffing box gland can be made recessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108492.0A CN104633363A (en) | 2015-03-13 | 2015-03-13 | Maintenance-free sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108492.0A CN104633363A (en) | 2015-03-13 | 2015-03-13 | Maintenance-free sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104633363A true CN104633363A (en) | 2015-05-20 |
Family
ID=53212428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510108492.0A Pending CN104633363A (en) | 2015-03-13 | 2015-03-13 | Maintenance-free sleeve compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633363A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018063046A (en) * | 2016-10-13 | 2018-04-19 | チャンヨプ・アン | Flexible slip joint device for earthquake resistance |
| JP2019173834A (en) * | 2018-03-28 | 2019-10-10 | 大陽日酸株式会社 | Internal piping structure of vacuum heat insulation pipe |
| WO2022011528A1 (en) * | 2020-07-14 | 2022-01-20 | 昆山德安模具设计有限公司 | Sealed pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049302U (en) * | 1989-04-07 | 1989-12-13 | 赵铎 | Casing telescopic device |
| JP2006153239A (en) * | 2004-12-01 | 2006-06-15 | Sankei Giken:Kk | Flexible expansion joint |
| US20090134620A1 (en) * | 2006-08-11 | 2009-05-28 | Zhanggen Song | Revolving Compensator of High Pressure for Pipe |
| CN102313095A (en) * | 2010-07-07 | 2012-01-11 | 兴化市通科机械有限公司 | Large-deflection loose spherical compensation joint |
| CN203431398U (en) * | 2013-09-02 | 2014-02-12 | 安徽理工大学 | Stuffing box type compensator |
| CN204083592U (en) * | 2014-09-01 | 2015-01-07 | 福建省闽旋科技股份有限公司 | A kind of swivel joint of double-sealing |
-
2015
- 2015-03-13 CN CN201510108492.0A patent/CN104633363A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049302U (en) * | 1989-04-07 | 1989-12-13 | 赵铎 | Casing telescopic device |
| JP2006153239A (en) * | 2004-12-01 | 2006-06-15 | Sankei Giken:Kk | Flexible expansion joint |
| US20090134620A1 (en) * | 2006-08-11 | 2009-05-28 | Zhanggen Song | Revolving Compensator of High Pressure for Pipe |
| CN102313095A (en) * | 2010-07-07 | 2012-01-11 | 兴化市通科机械有限公司 | Large-deflection loose spherical compensation joint |
| CN203431398U (en) * | 2013-09-02 | 2014-02-12 | 安徽理工大学 | Stuffing box type compensator |
| CN204083592U (en) * | 2014-09-01 | 2015-01-07 | 福建省闽旋科技股份有限公司 | A kind of swivel joint of double-sealing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018063046A (en) * | 2016-10-13 | 2018-04-19 | チャンヨプ・アン | Flexible slip joint device for earthquake resistance |
| CN107940145A (en) * | 2016-10-13 | 2018-04-20 | 安昌烨 | Anti-seismic flexible slip joint device |
| US10400927B2 (en) | 2016-10-13 | 2019-09-03 | Chang Yup AN | Earthquake-resistant flexible slip joint apparatus |
| JP2019173834A (en) * | 2018-03-28 | 2019-10-10 | 大陽日酸株式会社 | Internal piping structure of vacuum heat insulation pipe |
| WO2022011528A1 (en) * | 2020-07-14 | 2022-01-20 | 昆山德安模具设计有限公司 | Sealed pipe |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |