CN104747853B - Maintenance-free rotary compensator - Google Patents
Maintenance-free rotary compensator Download PDFInfo
- Publication number
- CN104747853B CN104747853B CN201510108503.5A CN201510108503A CN104747853B CN 104747853 B CN104747853 B CN 104747853B CN 201510108503 A CN201510108503 A CN 201510108503A CN 104747853 B CN104747853 B CN 104747853B
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- CN
- China
- Prior art keywords
- sealing shroud
- flange
- inner tube
- outer tube
- sealing
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- 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.)
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Classifications
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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
- 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
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of maintenance-free rotary compensator, including outer tube (1), inner tube (2), it is characterized in that, flange (5) it is provided with at the middle part of inner tube, the right side of flange is cased with locating ring (4) successively, sealing shroud (3), the pipe portion of sealing shroud is in sealing contact with the cylindrical of inner tube, the pipe portion of sealing shroud stretches in outer tube, gap is left between pipe portion and the inwall of outer tube of sealing shroud, the left end of outer tube is provided with flange (7), sealing shroud left end is radially placed on the left of flange along the chimb stretched, multiple bolts (8) pass locating ring, the chimb of sealing shroud and flange, the nut of the left end of screwing bolts makes the chimb of sealing shroud be pressed on flange, described sealing shroud is made up of silastic material.Sealing shroud is made up of silastic material, when, after the inner wall abrasion of sealing shroud, the elasticity of silicone rubber still can make the pipe portion of sealing shroud be in sealing contact with inner tube, keeps sealing property, greatly reduces maintenance workload, can increase the service life compared with existing whirl compensator.
Description
Technical field
The present invention relates to a kind of whirl compensator, this whirl compensator is for compensating expanding with heat and contract with cold of heat supply pipeline.
Background technology
The structure of existing whirl compensator includes outer tube, inner tube, one end of inner tube is stretched in outer tube, outer tube is provided with graphite grazing filler with the intersection of inner tube, relatively rotates between outer tube and inner tube when heat supply pipeline generation line expands, it is achieved the compensation to heat supply pipeline.Relatively rotating between outer tube and inner tube can make airtight and watertight padding wear and tear, the sealing property making whirl compensator is gradually reduced, therefore run after a period of time and be accomplished by the airtight and watertight padding of whirl compensator is compressed, make that airtight and watertight padding is radially extending to be close in outer tube and inner tube.Owing to being that on-site maintenance cannot judge that airtight and watertight padding is close in outer tube and inner tube the most equably; usually can cause the phenomenon of monolateral compression; the abrasion of aggravation airtight and watertight padding, increases the maintenance workload of whirl compensator sealing property, shortens the service life of whirl compensator.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of maintenance-free rotary compensator, and this maintenance-free rotary compensator is when running, and potted component abrasion is little, can automatically compensate wear extent when potted component occurs abrasion, keep the sealing property of whirl compensator.
The structure of maintenance-free rotary compensator includes outer tube 1, inner tube 2, it is characterized in that, it is provided with flange 5 at the middle part of inner tube, the right side of flange is cased with locating ring 4 successively, sealing shroud 3, the pipe portion of sealing shroud is in sealing contact with the cylindrical of inner tube, the pipe portion of sealing shroud stretches in outer tube, the pipe portion of sealing shroud and the inwall of outer tube leave gap, the left end of outer tube is provided with flange 7, sealing shroud left end is radially placed on the left of flange along the chimb stretched, multiple bolts 8 are through locating ring, the chimb of sealing shroud and flange, the nut of the left end of screwing bolts makes the chimb of sealing shroud be pressed on flange, described sealing shroud is made up of silastic material.
Bolt is also cased with retaining set 6, retaining set is positioned at the root of bolt, the round edge of the big cylindrical section that retaining puts extend in the end face on the left of flange 5, and the little cylindrical that retaining puts is in the outside of flange 5 circumference, and retaining puts the length thickness slightly larger than flange 5 of little cylindrical section.
Inwall in inner tube one end is provided with recess 12, is provided with the hook portion 11 being folded to inner tube upper notch in the end of sealing shroud, and described hook portion is in sealing contact with the recess of inner tube.
The edge of outer tube upper flange extends a body 10 axially towards a left side, and the inner circle of body matches with the cylindrical of locating ring 4, and the inner circle of locating ring matches with the cylindrical of inner tube.
The feature of maintenance-free rotary compensator is, one, sealing shroud be made up of silastic material, when, after the inner wall abrasion of sealing shroud, the elasticity of silicone rubber still can make the pipe portion of sealing shroud be in sealing contact with inner tube, keep sealing property, greatly reduce maintenance workload；Two, the pipe portion of sealing shroud and the inwall of outer tube leave gap, and the excircle part sealing cannula portion will not be worn and torn；Three, the frictional force between sealing shroud and inner tube is by the pressure initiation of fluid in the contractility of sealing shroud and whirl compensator, its frictional force is much smaller than the frictional force in prior art between graphite grazing filler and outer tube, inner tube, in maintenance-free rotary compensator, the frictional force between sealing shroud and inner tube is little, the abrasion of sealing shroud can be reduced, can increase the service life compared with existing whirl compensator.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention, saves part bolt in this figure.
Fig. 2 is the left view of Fig. 1.
Mark in accompanying drawing represents respectively: your pipe, 3-sealing shroud, 4-locating ring, 5-flange, 6-retaining set, 7-flange, 8-bolt, 9-nut, 10-body, 11-hook portion, 12-recess of 1-outer tube, 2-.
Detailed description of the invention
The now detailed description of the invention of the comparison accompanying drawing explanation present invention.
The structure of maintenance-free rotary compensator includes outer tube 1, inner tube 2, it is characterized in that, it is provided with flange 5 at the middle part of inner tube, the right side of flange is cased with locating ring 4 successively, sealing shroud 3, the pipe portion of sealing shroud is radially contracted on the cylindrical of inner tube, the pipe portion of sealing shroud stretches in outer tube, the pipe portion of sealing shroud and the inwall of outer tube leave gap, the left end of outer tube is provided with flange 7, sealing shroud left end is radially placed on the left of flange along the chimb stretched, multiple bolts 8 are through locating ring, the chimb of sealing shroud and flange, the nut 9 of the left end of screwing bolts makes the chimb of sealing shroud be pressed on flange, described sealing shroud is made up of silastic material, silastic material has good high temperature resistant, resistance to low temperature；Described bolt is hex bolts, and the quantity of bolt is 6-12.
Sealing shroud is made up collapsible on the cylindrical of inner tube of silastic material, it is in operation in maintenance-free rotary compensator and is full of fluid media (medium), the pressure of fluid and the contractility of sealing shroud make the pipe portion of sealing shroud be close on inner pipe, stop fluid to leak out along the outer wall of inner tube.
During maintenance-free rotary compensator is installed, for preventing inner tube from outwards scurrying out from sealing shroud, bolt is also cased with retaining set 6, retaining set is positioned at the root of bolt, the round edge of the big cylindrical section that retaining puts extend in the end face on the left of flange 5, the little cylindrical that retaining puts is in the outside of flange 5 circumference, and retaining puts the length thickness more than flange 5 of little cylindrical section, and the scope being more than is between 0.1-1 millimeter.
For improving maintenance-free rotary compensator sealing property, the inwall in inner tube one end is provided with recess 12, is provided with the hook portion 11 being folded to inner tube upper notch in the end of sealing shroud, and described hook portion is in sealing contact with the recess of inner tube.
For improving the axiality of inner tube and outer tube, the edge of outer tube upper flange extends a body 10 axially towards a left side, and the internal diameter of body is more than external diameter 0.1 millimeter of locating ring 4, and the internal diameter of locating ring is more than external diameter 0.1 millimeter of inner tube.
Claims (3)
1. a maintenance-free rotary compensator, including outer tube (1), inner tube (2), it is characterized in that, flange (5) it is provided with at the middle part of inner tube, the right side of flange is cased with locating ring (4) successively, sealing shroud (3), the pipe portion of sealing shroud is in sealing contact with the cylindrical of inner tube, the pipe portion of sealing shroud stretches in outer tube, gap is left between pipe portion and the inwall of outer tube of sealing shroud, the left end of outer tube is provided with flange (7), sealing shroud left end is radially placed on the left of flange along the chimb stretched, multiple bolts (8) pass locating ring, the chimb of sealing shroud and flange, the nut of the left end of screwing bolts makes the chimb of sealing shroud be pressed on flange, described sealing shroud is made up of silastic material；Bolt is also cased with retaining set (6), retaining set is positioned at the root of bolt, the round edge of the big cylindrical section that retaining puts extend in the end face in flange (5) left side, the little cylindrical that retaining puts is in the outside of flange (5) circumference, and retaining puts the length thickness slightly larger than flange (5) of little cylindrical section.
Maintenance-free rotary compensator the most according to claim 1, is characterized in that, the inwall in inner tube one end is provided with recess (12), is provided with the hook portion (11) being folded to inner tube upper notch in the end of sealing shroud, and described hook portion is in sealing contact with the recess of inner tube.
3. according to the maintenance-free rotary compensator according to any one of claim 1-2, it is characterized in that, the edge of outer tube upper flange extends a body (10) axially towards a left side, and the inner circle of body matches with the cylindrical of locating ring (4), and the inner circle of locating ring matches with the cylindrical of inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108503.5A CN104747853B (en) | 2015-03-13 | 2015-03-13 | Maintenance-free rotary compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510108503.5A CN104747853B (en) | 2015-03-13 | 2015-03-13 | Maintenance-free rotary compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104747853A CN104747853A (en) | 2015-07-01 |
| CN104747853B true CN104747853B (en) | 2016-10-19 |
Family
ID=53587955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510108503.5A Active CN104747853B (en) | 2015-03-13 | 2015-03-13 | Maintenance-free rotary compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747853B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606355A (en) * | 2017-10-26 | 2018-01-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Hermetical connecting structure for molten iron rotation desulfurization rifle |
| CN108869913A (en) * | 2018-05-28 | 2018-11-23 | 王惠俊 | Whirl compensator abrasion-proof apparatus easy to install |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049302U (en) * | 1989-04-07 | 1989-12-13 | 赵铎 | Casing telescopic device |
| RU2093132C1 (en) * | 1994-08-05 | 1997-10-20 | Георгий Васильевич Винник | Method of osteochondrosis treatment |
| CN2437944Y (en) * | 2000-07-14 | 2001-07-04 | 滕州市衡达有限责任公司 | Wear-resistant wave enamel composite expansion joint |
| CN201462305U (en) * | 2009-08-28 | 2010-05-12 | 天津艾耐尔热能设备有限公司 | Outer sheathed steel pipe end part sealing mechanism of steel-sheathed-steel steam heat-preservation pipeline |
-
2015
- 2015-03-13 CN CN201510108503.5A patent/CN104747853B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049302U (en) * | 1989-04-07 | 1989-12-13 | 赵铎 | Casing telescopic device |
| RU2093132C1 (en) * | 1994-08-05 | 1997-10-20 | Георгий Васильевич Винник | Method of osteochondrosis treatment |
| CN2437944Y (en) * | 2000-07-14 | 2001-07-04 | 滕州市衡达有限责任公司 | Wear-resistant wave enamel composite expansion joint |
| CN201462305U (en) * | 2009-08-28 | 2010-05-12 | 天津艾耐尔热能设备有限公司 | Outer sheathed steel pipe end part sealing mechanism of steel-sheathed-steel steam heat-preservation pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104747853A (en) | 2015-07-01 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Effective date of registration: 20190111 Address after: 225505 Shuguang Industrial Park, Baimi Town, Jiangyan District, Taizhou City, Jiangsu Province Patentee after: Jiangsu Yaoyu New Pipes Co., Ltd. Address before: Room C2-304, Jindu International Garden, Jiangyan District, Taizhou City, Jiangsu Province Patentee before: Gao Yuqin |