CN2879095Y - Inner-distensible bellows heat exchanging tube with high-reliability - Google Patents
Inner-distensible bellows heat exchanging tube with high-reliability Download PDFInfo
- Publication number
- CN2879095Y CN2879095Y CN 200620089387 CN200620089387U CN2879095Y CN 2879095 Y CN2879095 Y CN 2879095Y CN 200620089387 CN200620089387 CN 200620089387 CN 200620089387 U CN200620089387 U CN 200620089387U CN 2879095 Y CN2879095 Y CN 2879095Y
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- heat exchange
- exchanger tube
- internal
- expansion type
- 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
A high-reliability internal expanding type corrugated heat exchange pipe comprises an internal expanding heat exchange pipe body. The utility model is characterized in that: the terminal of the internal expanding heat exchange pipe body is an integrated connection thick-wall pipe. The utility model has the advantages that the short pipe part of the thick-wall pipe and the heat exchange pipe body are connected into an integral, which is not only easy to be welded with the tube sheet to ensure the welding quality, but also can eliminate the hidden danger of the heat exchange pipe so as to ensure the precise and reliable operation of the equipment.
Description
Technical field
The utility model belongs to a kind of internal-expansion type heat exchanger tube, particularly a kind of high reliability internal-expansion type node heat exchanger tube.
Background technology
The efficient node heat exchanger tube of internal-expansion type in the past, owing to reasons such as manufacturing process, it is thinner that tube wall requires, so just make heat exchanger tube with the tube sheet welding assembly before, need weld the short tube of one section heavy wall at the pipe end of thin-walled heat exchanger tube again, be welded on the tube sheet by short tube.But this structure makes every heat exchanger tube have two weld seams, forms four weld seams with two ends tube sheet welding back, has therefore increased the unsafe factors such as tube side leakage of equipment greatly, influences the safe handling of heat transmission equipment.
The utility model content
The purpose of this utility model provides a kind of high reliability internal-expansion type node heat exchanger tube, the main part that realizes thin-walled is connected no weld seam with the end thick wall part, can be easily and tube sheet weld the assurance welding quality, eliminated the potential safety hazard of heat exchanger tube again, assurance equipment moves accurately and reliably.
The purpose of this utility model is achieved by the following technical solution: it comprises internal-expansion type heat exchanger tube body, it is characterized in that: the whole heavy wall short tube that connects in the end of internal-expansion type heat exchanger tube body.
The utility model has the advantages that: end heavy wall short tube part is whole a connection with the heat exchanger tube body, can be easily and tube sheet weld, the assurance welding quality has been eliminated the potential safety hazard of heat exchanger tube again, assurance equipment moves accurately and reliably.
Description of drawings
Fig. 1 is structural representation of the present utility model (only showing an end).
The specific embodiment
See Fig. 1, concrete structure of the present utility model is as follows: the whole heavy wall short tube 1 that connects in the end of internal-expansion type heat exchanger tube body 2, heavy wall short tube 1 wall thickness is greater than heat exchanger tube body 2 wall thickness 20%.
Claims (2)
1, a kind of high reliability internal-expansion type node heat exchanger tube, it comprises internal-expansion type heat exchanger tube body, it is characterized in that: the end at internal-expansion type heat exchanger tube body is the whole thick-walled pipe that connects.
2, high reliability internal-expansion type node heat exchanger tube according to claim 1, it is characterized in that: heavy wall short tube wall thickness is greater than heat exchange tube body wall thick 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089387 CN2879095Y (en) | 2006-02-24 | 2006-02-24 | Inner-distensible bellows heat exchanging tube with high-reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620089387 CN2879095Y (en) | 2006-02-24 | 2006-02-24 | Inner-distensible bellows heat exchanging tube with high-reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879095Y true CN2879095Y (en) | 2007-03-14 |
Family
ID=37861515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620089387 Expired - Fee Related CN2879095Y (en) | 2006-02-24 | 2006-02-24 | Inner-distensible bellows heat exchanging tube with high-reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879095Y (en) |
-
2006
- 2006-02-24 CN CN 200620089387 patent/CN2879095Y/en not_active Expired - Fee Related
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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: 20070314 Termination date: 20100224 |