CN2465027Y - Improved corrugated pipe compensator - Google Patents
Improved corrugated pipe compensator Download PDFInfo
- Publication number
- CN2465027Y CN2465027Y CN 01205757 CN01205757U CN2465027Y CN 2465027 Y CN2465027 Y CN 2465027Y CN 01205757 CN01205757 CN 01205757 CN 01205757 U CN01205757 U CN 01205757U CN 2465027 Y CN2465027 Y CN 2465027Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- drag reduction
- wall
- inlet tube
- bellows
- 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 improvement of pipeline compensators, particularly an improved corrugated pipeline compensator used for heating pipe networks. The utility model comprises a corrugated pipe, both ends of which are respectively welded on flanges of an inlet pipe and an outlet pipe, and a drag reduction pipe arranged in the corrugated pipe. One end of the drag reduction pipe is welded to the inner wall of the inlet pipe together, and the other end of the drag reduction pipe is in the sliding fit with the inner wall of the outlet pipe by an anti-wear ring sheathed on the drag reduction pipe. The outer part of the corrugated pipe is provided with an outer protective casing, one end of which is welded to the flange of the inlet pipe together and the other end of which is welded with a protective plate, an inner hole of which is matched with the outer wall of the outlet pipe, and all are provided with nickel and phosphor plating. The utility model has the advantages of normal telescopic function, little possibility to be rusted and long service life, and hard foreign matter can not enter the ditch of the corrugated pipe.
Description
The utility model belongs to the improvement of pipeline extension device, especially for the improved corrugated conduit expansion bend of heating pipe network.
In the heating pipe network engineering, because of heat medium temperature in the pipeline changes greatly, make the length of pipeline, when temperature variation, corresponding variation is also bigger.In order to address this problem the problem of expanding with heat and contract with cold that adopts pipeline extension device to solve pipeline.Pipeline extension device commonly used has telescopic and the wavy metal formula.The management of telescopic pipeline expansion bend and repair cumbersome.And corrugated pipeline extension device is under pipeline expands with heat and contract with cold the repeated stress effect,, can guarantee that hot duct normally heats, and can not rupture in rated range at the flexible number of times of hot duct.
But the corrugated conduit expansion bend is contained in when working on the hot duct, and the sediment in the heating hot water enters in the ripple pipe trench, and the precipitation lamination reaches certain thickness, then hinders the flexible of expansion bend, even plays the effect that destroys expansion bend, causes pipeline or expansion bend drawing crack.Because the outdoor pipe network of present domestic heating mostly adopts directly buried installation, the hard thing of very easily entering in the ripple ditch that is exposed on the outside like this damages pipeline extension device when elongating or shortening.Corrugated in addition pipeline extension device is except that bellows is the stainless steel manufacturing, and other associate member is carbon steel and constitutes.Therefore other associate member very easily gets rusty, and seriously influences the working life of corrugated conduit expansion bend.
The purpose of this utility model is to provide a kind of improved corrugated conduit expansion bend, can not enter foreign material or hard thing in the ripple pipe trench of its bellows inwall and in the ripple pipe trench of its outer wall, guarantee the normal Telescopic of corrugated conduit expansion bend, and be difficult for corrosion, long service life.
The purpose of this utility model is achieved in that a kind of improved corrugated conduit expansion bend, the two ends that comprise bellows are welded on respectively on the flange of inlet tube and outer pipe, be arranged on the drag reduction pipe in the bellows that has inlet tube and outer pipe, one end and inlet tube inwall weld together, its the other end is slidingly matched by suit anti-grinding ring and outer pipe inwall thereon, the tubulose outer protecting shell in the outer installment of bellows, one end of outer protecting shell and the flange of inlet tube weld together, its the other end is welding the backplate that endoporus matches with the outer pipe outer wall, at the inside and outside wall of outer protecting shell, have inlet tube, anti-rust metal coating all is being set on the inside and outside wall of the inside and outside wall of the bellows of outer pipe and drag reduction pipe.
Because being provided with the drag reduction pipe in bellows has prevented that the sediment in the heating medium from depositing in the ripple ditch of bellows; The tubulose outer protecting shell in the bellows outer installment, when directly buried installation heats outdoor pipe network, prevented that hard thing from entering in the ripple ditch of bellows outside, guaranteed the normal Telescopic of pipeline extension device.After the utility model completed, integral body was carried out chemical deposit, plating one deck anti-rust metal coating.Guaranteed that so in use the each several part parts can not corroded, and have increased working life.
Accompanying drawing is the utility model cross-sectional view.
Below in conjunction with accompanying drawing the utility model is further described.
A kind of improved corrugated conduit expansion bend, the two ends that comprise bellows 6 are welded on respectively on the flange of inlet tube 8 and outer pipe 1, be arranged on the drag reduction pipe 9 in the bellows 6 that has inlet tube 8 and outer pipe 1, one end and inlet tube 8 inwalls weld together, its the other end is slidingly matched with outer pipe 1 inwall by the anti-grinding ring 2 that is sleeved on the drag reduction pipe 9, tubulose outer protecting shell 5 in the outer installment of bellows 6, one end of outer protecting shell 5 and the flange of inlet tube 8 weld together, its the other end is welding the backplate 3 that endoporus matches with outer pipe 1 outer wall, respectively affixed position limit cycle 4 on the outer wall of backplate 3 both sides outer pipes 1.Except that anti-grinding ring 2 was made of Stainless Steel Tube, other each parts constituted by Alloy Constructional Steel.On the inside and outside wall of the inside and outside wall of outer protecting shell 5, the inside and outside wall of bellows 6 that has inlet tube 8, outer pipe 1 and drag reduction pipe 9 anti-rust metal coating 7 is being set all, anti-rust metal coating 7 is nickel, phosphorus coating.
Claims (4)
1. improved corrugated conduit expansion bend, the two ends that comprise bellows (6) are welded on respectively on the flange of inlet tube (8) and outer pipe (1), it is characterized in that: be arranged on the drag reduction pipe (9) in the bellows (6) that has inlet tube (8) and outer pipe (1), one end and inlet tube (8) inwall welds together, its the other end is slidingly matched by suit anti-grinding ring (2) thereon and outer pipe (1) inwall, tubulose outer protecting shell (5) in the outer installment of bellows (6), the flange of one end of outer protecting shell (5) and inlet tube (8) welds together, its the other end is welding the backplate (3) that endoporus matches with outer pipe (1) outer wall, the inside and outside wall in outer protecting shell (5), have inlet tube (8), on the inside and outside wall of the bellows (6) of outer pipe (1) and the inside and outside wall of drag reduction pipe (9) anti-rust metal coating (7) is being set all.
2. improved corrugated conduit expansion bend according to claim 1 is characterized in that: respectively affixed position limit cycle (4) on the outer wall of backplate (3) both sides outer pipes (1).
3. improved corrugated conduit expansion bend according to claim 1 is characterized in that: except that anti-grinding ring (2) was made of Stainless Steel Tube, other each parts constituted by Alloy Constructional Steel.
4. improved corrugated conduit expansion bend according to claim 1 is characterized in that: the coat of metal (7) is nickel, phosphorus coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01205757 CN2465027Y (en) | 2001-02-22 | 2001-02-22 | Improved corrugated pipe compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01205757 CN2465027Y (en) | 2001-02-22 | 2001-02-22 | Improved corrugated pipe compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465027Y true CN2465027Y (en) | 2001-12-12 |
Family
ID=33626556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01205757 Expired - Fee Related CN2465027Y (en) | 2001-02-22 | 2001-02-22 | Improved corrugated pipe compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465027Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109079A (en) * | 2011-03-09 | 2011-06-29 | 巩义市怡通给排水材料有限公司 | Pipeline expansion compensator |
| CN103277628A (en) * | 2013-05-23 | 2013-09-04 | 中交第二航务工程局有限公司 | Flexible joint protecting device based on muddy water pipeline in muddy water shield |
| CN105443914A (en) * | 2015-03-13 | 2016-03-30 | 高玉琴 | Three-dimensional sleeve compensator |
| CN108506639A (en) * | 2018-05-23 | 2018-09-07 | 海宁市晟达消防设备有限公司 | Anti- expansion stainless steel webmaster |
-
2001
- 2001-02-22 CN CN 01205757 patent/CN2465027Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109079A (en) * | 2011-03-09 | 2011-06-29 | 巩义市怡通给排水材料有限公司 | Pipeline expansion compensator |
| CN103277628A (en) * | 2013-05-23 | 2013-09-04 | 中交第二航务工程局有限公司 | Flexible joint protecting device based on muddy water pipeline in muddy water shield |
| CN105443914A (en) * | 2015-03-13 | 2016-03-30 | 高玉琴 | Three-dimensional sleeve compensator |
| CN108506639A (en) * | 2018-05-23 | 2018-09-07 | 海宁市晟达消防设备有限公司 | Anti- expansion stainless steel webmaster |
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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 |