CN2490391Y - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN2490391Y CN2490391Y CN 01250429 CN01250429U CN2490391Y CN 2490391 Y CN2490391 Y CN 2490391Y CN 01250429 CN01250429 CN 01250429 CN 01250429 U CN01250429 U CN 01250429U CN 2490391 Y CN2490391 Y CN 2490391Y
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- certain distance
- box gland
- expansion joint
- overcoat
- 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
Abstract
The utility model discloses an expansion joint which comprises connection pipes on both ends and is characterized in that the inner end of one connection pipe is provided with a stopping flange, the outer pipe wall is covered with a sealing cover with inner and outer sealing rings, the end surface of the sealing cover has certain distance from the stop flange, the other connection pipe is wholly connected with an outer cover, the outer cover is assembled outside the sealing cover, the end screw of the outer cover is connected with a compression ring, the inner ends of the two connection pipes have certain distance. The utility model has the advantages that the expansion joint can satisfy the service requirement under high pressure, can make the compensation well with the elongation or shortening of the pipeline, and has a simple structure and good sealing performance.
Description
Technical field:
The utility model belongs to a kind of pipeline pipe fitting, particularly a kind of slip joint that is used on the high-pressure delivery slurry pipeline.
Background technique:
The pipeline of high-pressure delivery slurry is along with the rising or the reduction of the inner slurry temperature of pipeline, the temperature of its body also increases or reduces, cause the physical dimension of body to change, on length, produce and elongate or shorten, can produce huge collapsing force, for absorbing or compensating variation on this length pipeline, bending section (curved expansive force) is set having on the engineering to adopt on the pipeline, this kind mode waste material, bending section takes up space bigger, and also relatively fiber crops are numerous in construction simultaneously.Adopt a kind of expansion joint in addition, seal between the overcoat in order to make in the expansion joint, fill in asbestos rope between interior overcoat, but the usage requirement of high pressure is not all satisfied in existing bellows expansion joint or expansion joint, sealing can not get guaranteeing in actual use.
The model utility content:
The purpose of this utility model provides a kind of slip joint that is used on the high-pressure delivery slurry pipeline, along with elongating or shortening of pipeline, and fine the compensating of energy, simple in structure, good airproof performance.
The purpose of this utility model is achieved in that it comprises two pipe nipples, it is characterized in that: stop ledge is set in a inner of taking over, the stuffing box gland of exterior seal ring in the outer tube wall suit band, between stuffing box gland end face and the stop ledge certain distance is arranged, the whole overcoat that connects on another is taken over, overcoat is assembled in outside the stuffing box gland, and the end thread of overcoat connects pressure ring, and two take over the inner certain distance.
Working principle: when slurry raises the tube wall temperature of pipeline, the pipeline elongation, two take over the length that inner certain-length can suction line apart from the gap increases.If temperature descends, pipeline shortens, and the certain-length distance between stuffing box gland end face and the stop ledge can compensate shortening amount, and fluid seals by stuffing box gland, and stuffing box gland can be realized slipper seal.
The utility model has the advantages that: can satisfy the usage requirement of high pressure, along with elongating or shortening of pipeline, fine the compensating of energy, simple in structure, good airproof performance.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
See Fig. 1, concrete structure is as follows, the inner of two end pipes 1 and 7 is provided with certain distance, in the inner of an end pipe 1 stop ledge 6 is set, at the inner solder mask 5 of another end pipe 7, suit stuffing box gland 4 on the outer wall of end pipe 1, the interior periphery of stuffing box gland 4 is provided with seal ring 3, and stuffing box gland 4 is provided with certain distance with stop ledge 6, and overcoat 5 is sleeved on outside the stuffing box gland 4, the end of overcoat 5 is provided with internal thread, and the pressure ring 2 of stuffing box gland is blocked in assembling on it.
Claims (1)
1, a kind of slip joint, it comprises two pipe nipples, it is characterized in that: stop ledge is set in a inner of taking over, the stuffing box gland of exterior seal ring in the outer tube wall suit band, between stuffing box gland end face and the stop ledge certain distance is arranged, the whole overcoat that connects on another is taken over, overcoat is assembled in outside the stuffing box gland, the end thread of overcoat connects pressure ring, and two take over the inner certain distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250429 CN2490391Y (en) | 2001-08-23 | 2001-08-23 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250429 CN2490391Y (en) | 2001-08-23 | 2001-08-23 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490391Y true CN2490391Y (en) | 2002-05-08 |
Family
ID=33660587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250429 Expired - Fee Related CN2490391Y (en) | 2001-08-23 | 2001-08-23 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490391Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643854A (en) * | 2016-12-27 | 2017-05-10 | 新乡航空工业(集团)有限公司 | Instrument clamping table |
| CN110588043A (en) * | 2019-03-14 | 2019-12-20 | 杭州电子科技大学 | Device for tightening plastic pipe |
-
2001
- 2001-08-23 CN CN 01250429 patent/CN2490391Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643854A (en) * | 2016-12-27 | 2017-05-10 | 新乡航空工业(集团)有限公司 | Instrument clamping table |
| CN110588043A (en) * | 2019-03-14 | 2019-12-20 | 杭州电子科技大学 | Device for tightening plastic pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109707945B (en) | High-temperature-resistant high-pressure compensator | |
| CN201462207U (en) | Sealing device between protective well through hole and underground pipeline | |
| CN2490391Y (en) | Expansion joint | |
| CN213839963U (en) | Novel clamp type positive and negative pressure flexible joint | |
| CN110513561A (en) | A kind of pressure compensator | |
| CN2802241Y (en) | Combined direct-burried expansion compensator | |
| CN206669203U (en) | A kind of telescopic dynamic sealing compensator | |
| CN2482617Y (en) | Pipe compensator | |
| CN2151340Y (en) | Dual safety casing tube adjusting connector | |
| CN2323231Y (en) | Expansion joint resisting corrosion in high chlorion concentration environment | |
| CN214248694U (en) | Valve expansion piece lined with anti-corrosion rubber | |
| CN2049303U (en) | Pipeline compensator | |
| CN107269999A (en) | Disk pressure flange formula assembling pipe joint | |
| CN2344636Y (en) | Universal corrugated expansion joint for pressure steel pipe of hydraulic power station | |
| CN2314216Y (en) | Bidirectional axial corrugated expansion joint by external pressure | |
| CN201277398Y (en) | Steel pipe expansion joint | |
| CN207112160U (en) | Disk pressure flange formula assembling pipe joint | |
| CN2056722U (en) | Telescope jiont for pipe | |
| CN2833295Y (en) | Equal diameter insertion type glass fiber reinforced plastic mortar pipe | |
| CN2509416Y (en) | Universal double-wall pipeline | |
| CN206943620U (en) | A kind of gas pipeline jointing | |
| CN215060371U (en) | Sealed enhancement mode sleeve compensator | |
| CN220470955U (en) | Sealing leakage-proof sleeve compensator | |
| CN2152130Y (en) | Pressure self-locking joint | |
| CN203068007U (en) | Conveniently dismountable long pipeline expansion joint |
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 |