CN202048298U - Pipeline expansion piece - Google Patents
Pipeline expansion piece Download PDFInfo
- Publication number
- CN202048298U CN202048298U CN2011201172115U CN201120117211U CN202048298U CN 202048298 U CN202048298 U CN 202048298U CN 2011201172115 U CN2011201172115 U CN 2011201172115U CN 201120117211 U CN201120117211 U CN 201120117211U CN 202048298 U CN202048298 U CN 202048298U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- pipe
- flange
- expansion piece
- gland
- 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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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a pipeline expansion piece. The existing metal pipeline expansion piece commonly adopts stainless steel corrugated pipes, when the pipeline expands, the stainless steel corrugated pipe is impacted, when the strength reaches the fatigue strength, the pipeline is broken, if the torque exists, the pipeline welding junction is easy to crack and cannot be repaired. The pipeline expansion piece comprises a sleeve (1) which is connected with an operation pipeline (2), wherein a flange (3) is arranged on the sleeve, a packing (4) is wound between the operation pipeline at the other side and the sleeve, a connection pipe (5) on the operation pipeline at the other side is welded with a gland (6), and the gland is connected with the flange through a screw nipple (7).
Description
Technical field:
The utility model relates to a kind of pipeline extension device.
Background technique:
Pipeline extension device is during pipeline connects because the link that the dimensional changes that causes of expanding with heat and contract with cold is recompensed.What pipeline extension device was the most frequently used has two kinds, and a kind of is the rubber tubing expansion bend, and another kind is the metallic conduit expansion bend.The bearing temperature of rubber tubing expansion bend is lower, it is less to bear pressure, the main feature of metallic conduit expansion bend is that the flexible compensation amount is big, the bearing temperature height, it is big to bear pressure, and present metallic conduit expansion bend generally adopts stainless steel to make bellows, when pipe expansion, corrugated stainless steel tubing is produced impact force, and pipeline will rupture when intensity reaches fatigue strength, if the weld bond of pipeline is easy to cracking and can't repairs when torque force is arranged.
Summary of the invention:
The purpose of this utility model is that the problem at above-mentioned existence provides a kind of pipeline extension device, can effectively resist impact force and torsion that pipe interior produces, and long working life.
Above-mentioned purpose realizes by following technological scheme:
Pipeline extension device, its composition comprises: the sleeve pipe that is connected with service pipe, has flange on the described sleeve pipe, be wound with packing between opposite side service pipe and the described sleeve pipe, the connecting tube that is enclosed within on the described opposite side service pipe is welded with gland, between described gland and the described flange by silk is connected.
Described pipeline extension device, the described packing outside has protective tube, and an end of described packing contacts with described flange, and the other end of described packing contacts with pressure pipe.
The end that described pipeline extension device, described opposite side service pipe are enclosed within described sleeve pipe the inside has baffle ring.
Beneficial effect:
1, the utility model adopts bushing type to connect; by the built-in packing of protective tube, and adopt the design of pressure pipe and gland to prevent that liquid from flowing out before the packing, service pipe is convenient as the piston tube turnover during work; can effectively resist flexible that pipeline produces, prevent the weld bond cracking.
2, the utility model adopts flanged Placement can effectively alleviate the torque force that pipeline produces, so operating life prolongs greatly.
Service pipe and sleeve pipe break away from when 3, baffle ring being set on the service pipe of the present utility model avoiding extending amount big.
4, the utility model is simple in structure, and is easy to maintenance, not fragile.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment:
Embodiment 1:
Pipeline extension device, its composition comprises: the sleeve pipe 1 that is connected with service pipe 2, has flange 3 on the described sleeve pipe, be wound with packing 4 between opposite side service pipe and the described sleeve pipe, the connecting tube 5 that is enclosed within on the described opposite side service pipe is welded with gland 6, between described gland and the described flange by silk 7 is connected.
Embodiment 2:
Described pipeline extension device, the described packing outside has protective tube 8, and an end of described packing contacts with described flange, and the other end of described packing contacts with pressure pipe, can prevent leakage by protective tube 8 intensified pressures.
Embodiment 3:
Described pipeline extension device, an end that is positioned at described bassoon the inside on the described tubule have baffle ring 9 service pipe and the disengaging of this product when avoiding that winter, contour projector was big.
Claims (3)
1. pipeline extension device, its composition comprises: the sleeve pipe that is connected with service pipe, it is characterized in that: have flange on the described sleeve pipe, be wound with packing between opposite side service pipe and the described sleeve pipe, the connecting tube that is enclosed within on the described opposite side service pipe is welded with gland, between described gland and the described flange by silk is connected.
2. pipeline extension device according to claim 1 is characterized in that: the described packing outside has protective tube, and an end of described packing contacts with described flange, and the other end of described packing contacts with pressure pipe.
3. pipeline extension device according to claim 1 and 2 is characterized in that: the end that described opposite side service pipe is enclosed within described sleeve pipe the inside has baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201172115U CN202048298U (en) | 2011-04-20 | 2011-04-20 | Pipeline expansion piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201172115U CN202048298U (en) | 2011-04-20 | 2011-04-20 | Pipeline expansion piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048298U true CN202048298U (en) | 2011-11-23 |
Family
ID=44988607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201172115U Expired - Fee Related CN202048298U (en) | 2011-04-20 | 2011-04-20 | Pipeline expansion piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162560A (en) * | 2011-04-20 | 2011-08-24 | 刘毅非 | Pipeline extension device |
| RU2789315C1 (en) * | 2022-08-01 | 2023-02-01 | Михаил Михайлович Пукемо | Expansion compensator |
-
2011
- 2011-04-20 CN CN2011201172115U patent/CN202048298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162560A (en) * | 2011-04-20 | 2011-08-24 | 刘毅非 | Pipeline extension device |
| RU2789315C1 (en) * | 2022-08-01 | 2023-02-01 | Михаил Михайлович Пукемо | Expansion compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20130420 |