CN107289222A - Self sealss sleeve expansion joint - Google Patents
Self sealss sleeve expansion joint Download PDFInfo
- Publication number
- CN107289222A CN107289222A CN201710661662.7A CN201710661662A CN107289222A CN 107289222 A CN107289222 A CN 107289222A CN 201710661662 A CN201710661662 A CN 201710661662A CN 107289222 A CN107289222 A CN 107289222A
- Authority
- CN
- China
- Prior art keywords
- inner cylinder
- sealing shroud
- outer barrel
- ring
- flange ring
- 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.)
- Withdrawn
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
Abstract
A kind of self sealss sleeve expansion joint, for compensating expanding with heat and contract with cold for pipeline, it includes inner cylinder（1）, outer barrel（2）, left section of inner cylinder is located in outer barrel, and left section of inner cylinder is provided with a sealing shroud（5）, the through holes of multiple communication sealing shroud cavitys and inner cylinder cavity are evenly distributed on left section of wall of inner cylinder（3）；It is a feature of the present invention that the fluid via through holes that the barrel of inner cylinder is provided with through hole, inner cylinder enter sealing shroud, the pressure of fluid expands sealing shroud, sealing shroud is in close contact with outer barrel, and the pressure of fluid is bigger, and contact of the sealing shroud with outer barrel is closer.As long as sealing shroud is not worn, sealing property would not decline.Solderless fitting is easy to make on the self sealss sleeve expansion joint knot small volume of the present invention, simple production process, the inwall of outer barrel, and with that need not use welding sequence during entering outer barrel in interior wound packages, efficiency of assembling is high, and assembling quality is easily controlled.
Description
Technical field
The present invention relates to a kind of sleeve expansion joint, it is used to compensate expanding with heat and contract with cold for pressure piping.
Background technology
The structure of sleeve expansion joint generally comprises outer barrel, inner cylinder, and one end of inner cylinder is stretched in outer barrel, outer barrel and inner cylinder it
Between be provided with airtight and watertight padding, the both sides of airtight and watertight padding, which are clamped, to be produced airtight and watertight padding to be radially expanded, and airtight and watertight padding is with respect to outer barrel
Position immobilizes, and the position between inner cylinder and outer barrel can axially move, and produces and rubs between airtight and watertight padding when inner cylinder is moved
Wipe, airtight and watertight padding is worn and torn, cause sealing property to decline；What is interlocked in addition on outer barrel and inner cylinder is welded with annular element,
Need to weld in assembling in assembling process, work efficiency is low, and quality control is more difficult, it is therefore necessary to be improved.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of self sealss sleeve expansion joint, the self sealss sleeve expansion joint energy
Reliable compensation sealing performance.
The technical scheme is that, a kind of self sealss sleeve expansion joint, it includes inner cylinder 1, outer barrel 2, left section of inner cylinder
In outer barrel, it is characterized in that, multiple through holes 3 are evenly distributed on the wall that left section of inner cylinder, the sealing welding of two panels annular solid 4 exists
Inner cylinder it is cylindrical on, described annular solid is located at the left and right sides of through hole respectively, and two panels annular solid is " door " by a radial section
The sealing shroud 5 of font is covered, and sealing shroud is made up of elastomeric material, and the inwall of the cylindrical and outer barrel of sealing shroud is affixed, sealing shroud
Be respectively arranged on the left side and the right side left flange ring 6 and right flange ring 7, the external diameter and the internal diameter of outer barrel of left flange ring 6 and right flange ring 7
It is engaged, is mutually privately provided with bolt 8 on the anchor ring of two panels annular solid vertically, tightens the nut 11 on bolt, the left He of flange ring 6
Right flange ring 7 is tight by the left and right ends face pressure of sealing shroud.
It is a feature of the present invention that the fluid via through holes that the barrel of inner cylinder is provided with through hole, inner cylinder enter sealing shroud, fluid
Pressure expand sealing shroud, be in close contact sealing shroud and outer barrel, realize and sealed between inner cylinder and outer barrel, the pressure of fluid is got over
Greatly, contact of the sealing shroud with outer barrel is closer.When inner cylinder is moved in outer barrel, sealing shroud has abrasion, as long as sealing shroud is not
It is worn, sealing property would not decline.
The structure of the present invention causes volume to reduce, and production technology becomes simple, solderless fitting making side on the inwall of outer barrel
Just, the part welded with inner cylinder only has annular solid, after the part such as flange ring, sealing shroud is assembled on annular solid and inner cylinder is linked as one
Body, need not use welding sequence during interior wound packages enters outer barrel, and efficiency of assembling is high, and assembling quality is easily controlled.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Accompanying drawing mark is represented respectively：1- inner cylinders, 2- outer barrels, 3- through holes, 4- annular solids, 5- sealing shrouds, the left flange rings of 6-, 7-
Right flange ring, 8- bolts, 9- sealing rings, 10- back-up rings, 11- nuts.
Embodiment
In conjunction with the embodiment of the brief description of the drawings present invention.
A kind of self sealss sleeve expansion joint, it includes inner cylinder 1, outer barrel 2, and left section of inner cylinder is located in outer barrel, left section of inner cylinder
Wall on be evenly distributed multiple through holes 3, the sealing welding of two panels annular solid 4 inner cylinder it is cylindrical on, described annular solid point
Not Wei Yu through hole the left and right sides, sealing shroud 5 of the two panels annular solid by a radial section by " door " font covered, sealing shroud
Middle part is body, and the two ends of body have the anchor ring extended internally, and sealing shroud is made up of elastomeric material, sealing shroud it is cylindrical with it is outer
The inwall of cylinder is affixed, and sealing shroud is respectively arranged on the left side and the right side left flange ring 6 and right flange ring 7, left flange ring 6 and right flange ring
7 external diameter is engaged with the internal diameter of outer barrel, and multiple blind holes, one end of bolt 8 are symmetrically provided with the anchor ring of the annular solid on the left side
It is fixed in blind hole, bolt is stretched to the left, through sealing shroud and left flange ring；Blind hole also is provided with the anchor ring of the annular solid on the right,
Bolt in blind hole is stretched to the right, and through sealing shroud and right flange ring, bolt is provided with nut 11, tightens nut, the left He of flange ring 6
Right flange ring 7 is tight by the left and right ends face pressure of sealing shroud, makes to seal between sealing shroud and inner cylinder.
Inner cylinder and outer barrel distinguish seal for pipe joints connection adjacent thereto when using, the flow direction of medium from left to right, medium from
Through hole on inner cylinder enters sealing shroud, and it is real that there is medium certain pressure energy be in close contact the inwall of sealing shroud expansion and outer tube
Existing self sealss, and contact of the bigger sealing shroud of pressure with outer tube is closer.Fluid pressure on the right side of sealing shroud is not more than close
Pressure in big envelope, additionally by the damping of right flange ring, pressure of the fluid matasomatism outside sealing shroud on the right side of sealing shroud is big
It is big to reduce, fluid be difficult to from sealing shroud it is cylindrical from leak.
When the pressure in pipeline is far below rated value, it is insufficient to allow sealing shroud fully to expand, it is possible that leakage, prevents
Only impact of the fluid to sealing shroud on the right side of the leakage of medium and damping seal set, right flange ring it is cylindrical on extend to the right
Go out a flange, sealing ring 9 is provided with flange, the external diameter of flange is equal with the external diameter of right flange ring.
To prevent inner tube from deviating from from outer barrel, back-up ring 10 is provided with the left end inwall of outer barrel, back-up ring leads to pin or screw
It is fixed.
The structure of the present invention causes the volume of sleeve expansion joint to reduce, and production technology becomes simple, nothing on the inwall of outer barrel
Weldment, it is easy to make；The part welded with inner cylinder only has annular solid, and the part such as flange ring, sealing shroud is assembled on annular solid
It is connected as a single entity afterwards with inner cylinder, welding sequence need not be used during interior wound packages enters outer barrel, efficiency of assembling is high, assembling quality is held
It is easy to control.
Claims (3)
1. a kind of self sealss sleeve expansion joint, it includes inner cylinder（1）, outer barrel（2）, left section of inner cylinder is located in outer barrel, its feature
It is that multiple through holes have been evenly distributed on the wall that left section of inner cylinder（3）, two panels annular solid（4）Sealing welding inner cylinder it is cylindrical on,
Described annular solid is located at the left and right sides of through hole respectively, and two panels annular solid is by sealing shroud of the radial section for " door " font
（5）Covered, sealing shroud is made up of elastomeric material, the inwall of the cylindrical and outer barrel of sealing shroud is affixed, the left and right sides of sealing shroud
It is respectively equipped with left flange ring（6）With right flange ring（7）, left flange ring（6）With right flange ring（7）External diameter and outer barrel internal diameter phase
Coordinate, be mutually privately provided with bolt on the anchor ring of two panels annular solid vertically（8）, tighten the nut on bolt（11）Make left flange ring
（6）With right flange ring（7）The left and right ends face pressure of sealing shroud is tight.
2. self sealss sleeve expansion joint according to claim 1, it is characterized in that, right flange ring it is cylindrical on extend to the right
Go out a flange, sealing ring is provided with flange（9）, the external diameter of flange is equal with the external diameter of right flange ring.
3. self sealss sleeve expansion joint according to claim 1 or 2, it is characterized in that, it is provided with gear in the left end inwall of outer barrel
Circle（10）, back-up ring fixed with pin or screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661662.7A CN107289222A (en) | 2017-08-04 | 2017-08-04 | Self sealss sleeve expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661662.7A CN107289222A (en) | 2017-08-04 | 2017-08-04 | Self sealss sleeve expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107289222A true CN107289222A (en) | 2017-10-24 |
Family
ID=60104487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710661662.7A Withdrawn CN107289222A (en) | 2017-08-04 | 2017-08-04 | Self sealss sleeve expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107289222A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2918947Y (en) * | 2006-06-12 | 2007-07-04 | 阎瑞杰 | Internal pressure type rubber self-sealing flange connecting pipe gimbal |
| CN101344206A (en) * | 2008-08-26 | 2009-01-14 | 王甲南 | Self-compensating fastening type large-diameter fast joint |
| CN101776192A (en) * | 2010-03-15 | 2010-07-14 | 王甲南 | Self-compensating, locking and quick-connecting high-pressure pipe connector |
| CN101818837A (en) * | 2010-04-20 | 2010-09-01 | 航天晨光股份有限公司 | Pressure-compensated rotary joint |
| CN205908935U (en) * | 2016-07-29 | 2017-01-25 | 江苏金通机械有限公司 | Thermal -insulated stagnant water does not have thrust sleeve compensator |
| CN207112202U (en) * | 2017-08-04 | 2018-03-16 | 高玉琴 | Self sealss sleeve expansion joint |
-
2017
- 2017-08-04 CN CN201710661662.7A patent/CN107289222A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2918947Y (en) * | 2006-06-12 | 2007-07-04 | 阎瑞杰 | Internal pressure type rubber self-sealing flange connecting pipe gimbal |
| CN101344206A (en) * | 2008-08-26 | 2009-01-14 | 王甲南 | Self-compensating fastening type large-diameter fast joint |
| CN101776192A (en) * | 2010-03-15 | 2010-07-14 | 王甲南 | Self-compensating, locking and quick-connecting high-pressure pipe connector |
| CN101818837A (en) * | 2010-04-20 | 2010-09-01 | 航天晨光股份有限公司 | Pressure-compensated rotary joint |
| CN205908935U (en) * | 2016-07-29 | 2017-01-25 | 江苏金通机械有限公司 | Thermal -insulated stagnant water does not have thrust sleeve compensator |
| CN207112202U (en) * | 2017-08-04 | 2018-03-16 | 高玉琴 | Self sealss sleeve expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171024 |
|
| WW01 | Invention patent application withdrawn after publication |