CN204661780U - A kind of pipeline expander - Google Patents
A kind of pipeline expander Download PDFInfo
- Publication number
- CN204661780U CN204661780U CN201520279810.5U CN201520279810U CN204661780U CN 204661780 U CN204661780 U CN 204661780U CN 201520279810 U CN201520279810 U CN 201520279810U CN 204661780 U CN204661780 U CN 204661780U
- Authority
- CN
- China
- Prior art keywords
- interior pipe
- pipeline
- liquid nitrogen
- isolator
- metal tube
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a kind of pipeline expander, a kind of pipeline expander comprises interior pipe, expansion tube department, liquid nitrogen feeding mechanism, liquid nitrogen collection device and pipeline, liquid nitrogen feeding mechanism is connected with one end of interior pipe, described liquid nitrogen collection device is connected with the other end of interior pipe, expansion tube department is arranged between the two ends of interior pipe, described expansion tube department comprises metal tube, fin and isolator, and fin is arranged on metal tube, the metal tube outer setting isolator between described fin; Interior pipe comprises flexible pipe and isolator, and described isolator is arranged on flexible pipe outside; Interior pipe is connected by joint with between wide diameter portion, described interior pipe is encased in pipeline, when wide diameter portion is placed into the expanding position of pipeline domestic demand, water is full of in pipeline, liquid nitrogen is inputted by interior pipe one end by primer fluid nitrogen supply device, flow into liquid nitrogen collection device through interior pipe again through interior pipe, wide diameter portion, the utility model has following advantage: structure letter, and cost of manufacture is low.
Description
Technical field
The utility model relates to pipeline welding field, more particularly, relates to a kind of pipeline expander.
Background technology
Longitudinal submerged arc welded pipe requires moulding stress and the welding stress of eliminating steel pipe in the course of processing, usually mechanical means is adopted to carry out expandingly eliminating stress in current engineering, but mechanical means cost height operational difficulty, the utility model adopts liquid method to carry out expanding, and present method is simple to operate with low cost.
Summary of the invention
The purpose of this utility model is to overcome in prior art not enough, provides a kind of pipeline expander, and major advantage structure of the present utility model is simple, and cost of manufacture is low.For achieving the above object, the utility model have employed following technical scheme: a kind of pipeline expander, described a kind of pipeline expander comprises interior pipe, expansion tube department, liquid nitrogen feeding mechanism, liquid nitrogen collection device and pipeline, described liquid nitrogen feeding mechanism is connected with one end of interior pipe, described liquid nitrogen collection device is connected with the other end of interior pipe, described expansion tube department is arranged between the two ends of interior pipe, described expansion tube department comprises metal tube, fin and isolator, described fin is arranged on metal tube, the metal tube outer setting isolator between described fin; Described interior pipe comprises flexible pipe and isolator, and described isolator is arranged on flexible pipe outside; Described interior pipe is connected by joint with between wide diameter portion, described interior pipe is encased in pipeline, when wide diameter portion is placed into the expanding position of pipeline domestic demand, water is full of in pipeline, liquid nitrogen by the input of interior pipe one end, is flow into liquid nitrogen collection device through interior pipe through interior pipe, wide diameter portion by primer fluid nitrogen supply device again.
Preferably, described fin adopts and makes with metal tube same material.
Preferably, described metal tube adopts steel pipe.
Preferably, described isolator adopts elastomeric material to make.
The utility model has following advantage: structure is simple, and cost of manufacture is low.
Accompanying drawing explanation
As the structural representation that Fig. 1 is a kind of pipeline expander of the present utility model;
Fig. 2 is the internal structure schematic diagram for a kind of pipeline expander of the present utility model;
Fig. 3 is the expanding structural representation of internal pipeline of a kind of pipeline of the utility model expander.
Wherein, 1, pipeline expander; 2, metal tube; 3, fin; 4, isolator; 5, flexible pipe; 6, joint; 7, liquid nitrogen feeding mechanism; 8, liquid nitrogen collection device; 9, isolator; 10, wide diameter portion; 20, pipeline; 21, ice berg.
Embodiment
With the drawings and specific embodiments, the utility model is described in further detail below.
A kind of pipeline expander, described a kind of pipeline expander 1 comprises interior pipe, expansion tube department 10, liquid nitrogen feeding mechanism 7, liquid nitrogen collection device 8 and pipeline 20, described liquid nitrogen feeding mechanism 7 is connected with one end of interior pipe, described liquid nitrogen collection device 8 is connected with the other end of interior pipe, described expansion tube department 10 is arranged between the two ends of interior pipe, described expansion tube department 10 comprises metal tube 2, fin 3 and isolator 4, described fin 3 is arranged on metal tube 2, the metal tube 2 outer setting isolator between described fin 3, described interior pipe comprises flexible pipe 5 and isolator 9, and it is outside that described isolator 9 is arranged on flexible pipe 5, described interior pipe is connected by joint 6 with between wide diameter portion 10, described interior pipe is encased in pipeline 20, when wide diameter portion 10 is placed into the expanding position of pipeline domestic demand, water is full of in pipeline 20, liquid nitrogen is inputted by interior pipe one end by primer fluid nitrogen supply device 7, through interior pipe, wide diameter portion flow into liquid nitrogen collection device 8 through interior pipe again, when liquid nitrogen flows to wide diameter portion in flexible pipe, fin temperature reduces, water around fin asks decline, fin two ends water first starts to freeze, and form ice berg 21, water body between the ice berg of two ends is sealed, water body between two ice bergs freezes gradually, after water freezing, volume increase can make pipeline 20 externally expand, expanding effect can be reached.
Described fin 3 adopts and makes with metal tube 2 same material.
Described metal tube 2 adopts steel pipe.
Described isolator 4 (9) adopts elastomeric material to make.
It should be noted last that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted.Although be described in detail the utility model with reference to embodiment, will be understood by those skilled in the art that, the technical solution of the utility model is modified or equivalent replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. a pipeline expander, it is characterized in that: described a kind of pipeline expander comprises interior pipe, expansion tube department, liquid nitrogen feeding mechanism, liquid nitrogen collection device and pipeline, described liquid nitrogen feeding mechanism is connected with one end of interior pipe, described liquid nitrogen collection device is connected with the other end of interior pipe, described expansion tube department is arranged between the two ends of interior pipe, described expansion tube department comprises metal tube, fin and isolator, described fin is arranged on metal tube, the metal tube outer setting isolator between described fin; Described interior pipe comprises flexible pipe and isolator, and described isolator is arranged on flexible pipe outside; Described interior pipe is connected by joint with between wide diameter portion, described interior pipe is encased in pipeline, when wide diameter portion is placed into the expanding position of pipeline domestic demand, water is full of in pipeline, liquid nitrogen by the input of interior pipe one end, is flow into liquid nitrogen collection device through interior pipe through interior pipe, wide diameter portion by primer fluid nitrogen supply device again.
2. a kind of pipeline expander according to claim 1, is characterized in that: described fin adopts and makes with described metal tube same material.
3. a kind of pipeline expander according to claim 2, is characterized in that; Described metal tube adopts steel pipe.
4. a kind of pipeline expander according to claim 3, is characterized in that: described isolator adopts elastomeric material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279810.5U CN204661780U (en) | 2015-05-04 | 2015-05-04 | A kind of pipeline expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279810.5U CN204661780U (en) | 2015-05-04 | 2015-05-04 | A kind of pipeline expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204661780U true CN204661780U (en) | 2015-09-23 |
Family
ID=54132188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279810.5U Expired - Fee Related CN204661780U (en) | 2015-05-04 | 2015-05-04 | A kind of pipeline expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204661780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725968A (en) * | 2019-09-24 | 2020-01-24 | 中泰阀门有限公司 | Top-mounted low-temperature ball valve |
-
2015
- 2015-05-04 CN CN201520279810.5U patent/CN204661780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725968A (en) * | 2019-09-24 | 2020-01-24 | 中泰阀门有限公司 | Top-mounted low-temperature ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20160504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |