CN201412627Y - Outer pressure axial type water-proof compensator - Google Patents
Outer pressure axial type water-proof compensator Download PDFInfo
- Publication number
- CN201412627Y CN201412627Y CN2009200122982U CN200920012298U CN201412627Y CN 201412627 Y CN201412627 Y CN 201412627Y CN 2009200122982 U CN2009200122982 U CN 2009200122982U CN 200920012298 U CN200920012298 U CN 200920012298U CN 201412627 Y CN201412627 Y CN 201412627Y
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- CN
- China
- Prior art keywords
- pipe
- core pipe
- sealing
- compensator
- outer sleeve
- 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
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Abstract
The utility model belongs to the range of pressure pipeline elements, and relates to a heat compensation device of a heat direct buried or overhead pipeline. In an outer pressure axial type water-proof compensator, a flow guide cylinder is connected between a fixed core pipe and a movable core pipe; an outer sleeve is sheathed outside of the fixed core pipe and the movable core pipe; a sealing ring plate of a fixing end is welded between the outer wall of the fixed core pipe and the outer sleeve; a corrugated pipe is fixedly arranged between an end pipe and a sealing ring plate of a movable end; and a sealing tail pipe is fixed on the tail end of the outer sleeve, a sealing core pipe is fixed on the movable core pipe, and a sealing piece is arranged between the sealing tail pipe and the sealing core pipe. The heat compensation device has simple structure, overcomes the problem that the traditional outer pressure axial type corrugated compensator has poor sealing, guarantees normal working of the compensator, plays a role of good sealing, prevents external sundries and corrosive matters of water, sands and the like, leads the working to be more reliable and simultaneously prolongs the service life of the compensator.
Description
Technical field
The utility model belongs to pressure piping element category, relates to heating power direct-burried or aerial pipeline heat compensating unit.
Background technique
Heating power direct-burried or aerial pipeline in when operation because the phenomenon of expanding with heat and contract with cold can produce thermal stress in pipeline, in order to make stable under hot state, the safe operation of pipeline, must in pipe network, the appropriate location be installed by compensator, elongation when being heated in order to the compensation pipeline reduces the stress that is produced when pipeline expands with heat and contract with cold.Traditional external pressure axialmode FlexbleJoint, be between fixed core pipe and slide core pipe, to connect guide shell, fixed core pipe and slide core pipe are set with outer sleeve outward, fixedly welding fixed end sealing ring flat-plate between core tube wall and the outer sleeve, bellows is installed between the end pipe, one end pipe end and slide core pipe end are fixing by the welding of guiding ring flat-plate, the other end pipe end and outer sleeve are fixing by the welding of movable end sealing ring flat-plate, the pipe relative movement of slide core pipe racks moved end adapts to the thermal stress variation when using, but still there are some open questions: because of not sealing between end pipe and the slide core pipe, foreign material such as the silt that comes from the outside can enter bellows when the slide core pipe moves relatively, foreign material such as silt contact bellows, cause to pile up and influence the bellows proper functioning afterwards; Corrosive materials such as the water that comes from the outside contact bellows, corrosion bellows, because bellows can not be resisted the corrosion of high-concentration chlorine ion, particularly in the coastal area, because chlorine ion concentration is higher in the underground water, bellows is caused heavy corrosion, the result makes compensator work unreliable, the working life of having reduced compensator simultaneously.
The model utility content
The purpose of this utility model is to overcome above-mentioned not enough problem, and a kind of external pressure axialmode waterproof compensator is provided, and simple in structure, sealability is good, working stability, long service life.
The technological scheme that the utility model is adopted for achieving the above object is: external pressure axialmode waterproof compensator, connect guide shell between fixed core pipe and the slide core pipe, fixed core pipe and slide core pipe are set with outer sleeve outward, fixedly the welding fixed end seals ring flat-plate between core tube wall and the outer sleeve, bellows is fixedly mounted between end pipe and the movable end sealing ring flat-plate, outer sleeve tail end fixing seal tail pipe, fixing seal core pipe on the slide core pipe is equipped with Sealing between sealing tail pipe and the sealed core pipe.
Described Sealing is seal ring and stuffing box packing double seal.
Described end pipe and slide core pipe end are fixing by the welding of guiding ring flat-plate.
Described sealing tail pipe and outer sleeve, slide core pipe and sealed core Guan Jun are welded to connect.
The utility model has added telescopic sealing configuration on traditional external pressure axialmode FlexbleJoint architecture basics, simple in structure, overcome the not enough problem of sealing of traditional external pressure axialmode FlexbleJoint, sealed core pipe and slide core pipe one are done axial motion, guarantee the compensator proper functioning, good seal action is played in double seal between sealed core pipe and the sealing tail pipe again, prevented that foreign material, corrosive goods confrontation bellowss such as extraneous water, silt from causing corrosion, make work more reliable, prolonged the working life of compensator simultaneously.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1-fixed core pipe; 2-fixed end sealing ring flat-plate; The 3-guide shell; The 4-outer sleeve; The 5-ring flat-plate that leads; 6-holds pipe; The 7-bellows; 8-movable end sealing ring flat-plate; 9-seals tail pipe; The 10-seal ring; The 11-stuffing box packing; 12-sealed core pipe; 13-slide core pipe.
Embodiment
External pressure axialmode waterproof compensator as shown in Figure 1, connect guide shell 3 between fixed core pipe 1 and the slide core pipe 13, fixed core pipe 1 and slide core pipe 13 outer walls are set with outer sleeve 4, welding fixed end sealing ring flat-plate 2 between fixed core pipe 1 outer wall and the outer sleeve 4, bellows 7 is fixedly mounted between end pipe 6 and the movable end sealing ring flat-plate 8, end pipe 6 is fixing by 5 welding of guiding ring flat-plate with slide core pipe 13 terminations, outer sleeve 4 tail ends welding fixing seal tail pipe 9, welding fixing seal core pipe 12 on the slide core pipe 13, between sealing tail pipe 9 and the sealed core pipe 12 Sealing is housed, Sealing is seal ring 10 and stuffing box packing 11 double seal.
During work, slide core pipe 13 drives the sealed core pipe 12 that is welded to connect with it axial displacement together takes place, realize the normal compensate function of compensator, while sealed core pipe 12 and sealing tail pipe 9, seal ring 10, stuffing box packing 11 have formed a good Seal cage again, under the prerequisite that guarantees the compensator proper functioning, played good seal action again, hindered foreign material and corrosive material contact bellowss such as extraneous water, silt, bellows is caused corrosion.
Claims (4)
1, external pressure axialmode waterproof compensator, connect guide shell between fixed core pipe and the slide core pipe, fixed core pipe and slide core pipe are set with outer sleeve outward, fixedly the welding fixed end seals ring flat-plate between core tube wall and the outer sleeve, bellows is fixedly mounted between end pipe and the movable end sealing ring flat-plate, it is characterized in that: outer sleeve tail end fixing seal tail pipe, fixing seal core pipe on the slide core pipe is equipped with Sealing between sealing tail pipe and the sealed core pipe.
2, external pressure axialmode waterproof compensator according to claim 1, it is characterized in that: Sealing is seal ring and stuffing box packing double seal.
3, external pressure axialmode waterproof compensator according to claim 1 and 2 is characterized in that: the end pipe is fixing by the welding of guiding ring flat-plate with the slide core pipe end.
4, external pressure axialmode waterproof compensator according to claim 1 and 2 is characterized in that: sealing tail pipe and outer sleeve, slide core pipe and sealed core Guan Jun are welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200122982U CN201412627Y (en) | 2009-03-20 | 2009-03-20 | Outer pressure axial type water-proof compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200122982U CN201412627Y (en) | 2009-03-20 | 2009-03-20 | Outer pressure axial type water-proof compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412627Y true CN201412627Y (en) | 2010-02-24 |
Family
ID=41714511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200122982U Expired - Fee Related CN201412627Y (en) | 2009-03-20 | 2009-03-20 | Outer pressure axial type water-proof compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412627Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705613A (en) * | 2012-06-25 | 2012-10-03 | 武汉德威工程技术有限公司 | Axial corrugated compensator |
| CN104976462A (en) * | 2015-07-08 | 2015-10-14 | 河南昌茂供水设备有限公司 | External pressure rubber joint |
-
2009
- 2009-03-20 CN CN2009200122982U patent/CN201412627Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705613A (en) * | 2012-06-25 | 2012-10-03 | 武汉德威工程技术有限公司 | Axial corrugated compensator |
| CN102705613B (en) * | 2012-06-25 | 2013-11-20 | 武汉德威工程技术有限公司 | Axial corrugated compensator |
| CN104976462A (en) * | 2015-07-08 | 2015-10-14 | 河南昌茂供水设备有限公司 | External pressure rubber joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20120320 |