CN2283771Y - Sleeve compensator - Google Patents
Sleeve compensator Download PDFInfo
- Publication number
- CN2283771Y CN2283771Y CN 97205122 CN97205122U CN2283771Y CN 2283771 Y CN2283771 Y CN 2283771Y CN 97205122 CN97205122 CN 97205122 CN 97205122 U CN97205122 U CN 97205122U CN 2283771 Y CN2283771 Y CN 2283771Y
- Authority
- CN
- China
- Prior art keywords
- tube
- flange
- inner tube
- rubber ring
- wall
- 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
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model relates to a sleeve compensator, comprising an inner tube, an outer tube, a flange and filler. The utility model is characterized in that the outer wall of the inner tube is additionally provided with a hard chromium layer, a groove is arranged on the flange of the outer tube close to the outer wall of the inner tube, and an abrasion resistant rubber ring which is arranged in the groove is tightly covered on the flange of the outer tube by a press cover and a bolt. The has the advantages that the surface finish, the wear resistance and the corrosion resistance of the tube walls can be ensured, the inner tube and the outer tube can freely slid with each other in the process of heat expansion and cold contraction; the rubber ring is in a transverse opening shape, so that the sealing performance can be ensured, and the greater the pressure in the tube is, the more tightly the rubber ring is pressed on the tube walls.
Description
The utility model is the parts on a kind of heat distribution pipeline, is for solving a kind of sleeve compensator of heat supplying pipeline system heat expansion phenomenon.
North cities and towns central heat supply increases year by year, and pipeline is longer, and annual range of temperature is bigger, and pipeline work temperature requirement is at 95 ℃-200 ℃, and pipeline produces axial stress under hot state, and solving heat supplying pipeline system heat expansion phenomenon more becomes major issue.The compensation of pipeline device is set usually at a certain distance, and the normal compensator that uses has three kinds, and the one, square expansive force, shortcoming is that floor space is big, construction is inconvenient; The 2nd, the bellow type compensator, shortcoming is to cost an arm and a leg, and inconvenience is installed; The 3rd, old-fashioned sleeve-type expansion joint, shortcoming is that interstitital texture and packing material can not reach sealing effect, leaks easily.
The purpose of this utility model provides a kind of new casing compensator, and its compensation effect is good, does not leak.
The purpose of this utility model is achieved in that it comprises interior pipe, outer tube, flange and stuffing, it is characterized in that: outer wall of inner tube has increased hard chromium layers, press close to the outer wall of inner tube place outside on the pipe flange and establish groove, interior dress abrasive rubber circle, and with gland and bolt cover tightly outside on the pipe flange.
Its used abrasive rubber circle section becomes transverse opening shape.
The utility model has the advantages that: because outer wall of inner tube is shaped on hard chromium layers, guaranteed the degree of finish and the wear-resisting and corrosion resistance of tube wall, inner and outer pipes slides freely mutually in process of expansion and contraction; Owing to use heat-resistant antifriction rubber ring structure, and rubber ring becomes the transverse opening type, guaranteed sealability, and the pipe internal pressure is bigger, and rubber ring more presses tube wall.
Details of the present utility model provides by following examples and accompanying drawing thereof:
Fig. 1 is a structural representation of the present utility model.
With reference to the accompanying drawings, interior pipe 3 outer surfaces of the present utility model are coated with one deck hard chromium layers 10, and the outer end is welded with mounting flange 2.The outer end of outer tube 1 also is welded with mounting flange 2, the inner is welded with sealing flange 4, the outer surface of pipe 3 in sealing flange 4 is enclosed within, the position of pipe 3 is fluted in pressing close to, heat-resistant antifriction rubber ring 6 is installed, 6 one-tenth opening shapes of rubber ring, opening direction is towards outer tube one side, on the groove walls of flange 4 annular projection is arranged, support is in the opening of rubber ring 6.On the opposite of flange 4 gland 5 is arranged, be fastened on the flange 4 with bolt 7, nut 8 and packing ring 9, the outstanding annulus in the center portion of gland 5 withstands on the foreign side of rubber ring 6, and rubber ring 6 is compressed.
During the utility model work, because variation of temperature, when pipeline expanded with heat and contract with cold, interior pipe 3 will slide along the internal surface of gland 5 and rubber ring 6, with the variation of compensation conduit length, because the pressure of bolt 7 makes rubber ring 6 be close to outer wall of inner tube, reach the purpose of sealing, and pressure medium is healed when big in pipe, pressure conducts to flange 4 along the space between the inner and outer pipes, rubber ring 6 pressures are increased, and sealing is tighter.
Claims (2)
1, sleeve compensator, it comprises interior pipe, outer tube, flange and stuffing, it is characterized in that: outer wall of inner tube has increased hard chromium layers, presses close to the outer wall of inner tube place outside on the pipe flange and establishes groove, interior dress abrasive rubber circle, and with gland and bolt cover tightly outside on the pipe flange.
2, sleeve compensator according to claim 1 is characterized in that: its used abrasive rubber circle section becomes transverse opening shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205122 CN2283771Y (en) | 1997-01-22 | 1997-01-22 | Sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205122 CN2283771Y (en) | 1997-01-22 | 1997-01-22 | Sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2283771Y true CN2283771Y (en) | 1998-06-10 |
Family
ID=33925415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205122 Expired - Fee Related CN2283771Y (en) | 1997-01-22 | 1997-01-22 | Sleeve compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2283771Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896226A (en) * | 2015-06-01 | 2015-09-09 | 宁夏青龙管业股份有限公司 | Slip-connection closure part of engineering pipeline |
| CN109373071A (en) * | 2018-11-07 | 2019-02-22 | 广州达意隆包装机械股份有限公司 | A kind of flexible joint and the pipeline with flexible joint |
-
1997
- 1997-01-22 CN CN 97205122 patent/CN2283771Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896226A (en) * | 2015-06-01 | 2015-09-09 | 宁夏青龙管业股份有限公司 | Slip-connection closure part of engineering pipeline |
| CN109373071A (en) * | 2018-11-07 | 2019-02-22 | 广州达意隆包装机械股份有限公司 | A kind of flexible joint and the pipeline with flexible joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |