CN2253459Y - Double screwed pipe heat exchanger - Google Patents
Double screwed pipe heat exchanger Download PDFInfo
- Publication number
- CN2253459Y CN2253459Y CN 96227603 CN96227603U CN2253459Y CN 2253459 Y CN2253459 Y CN 2253459Y CN 96227603 CN96227603 CN 96227603 CN 96227603 U CN96227603 U CN 96227603U CN 2253459 Y CN2253459 Y CN 2253459Y
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- heat
- pipe
- tube
- wall
- 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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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a dual-thread pipe heat exchanger which is composed of a pipe box 1, a partition board 2, a casing body 3, a heat-exchanging pipe 4, a baffle board 5 and a pipe board 6, wherein, the inner and the outer walls of the heat-exchanging pipe thereof are both provided with screw threads, and the inner wall is provided with multi-head fine threads; the outer wall is provided with single-head bastard threads. The utility model which has a large heat transfer coefficient and small generated thermal stress is an ideal heat-exchanging device used in heat transferring systems, such as regional heating, power plants, etc., and leakage does not easily occur.
Description
The utility model belongs to heat-exchange apparatus, is suitable for using in district heating, building and heating, power plant and other heat transfer system.
The heat exchanger that generally uses at present is the light pipe heat exchanger, and not only heat transfer coefficient is little for it, and easily produces thermal stress, causes leaking.
The purpose of this utility model is, proposes a kind of double-cut tube heat exchanger of efficient augmentation of heat transfer, and it can overcome the deficiencies in the prior art part, and not only heat transfer coefficient is big, and the thermal stress that produces is little, is difficult for leaking.
The utility model is to realize like this.Double-cut tube heat exchanger is made of bobbin carriage, dividing plate, housing, heat exchanger tube, deflection plate and tube sheet, and heat exchanger tube wherein replaces with double corrugated pipe.That is, be equipped with screw thread at the heat exchanger tube inside and outside wall, inwall is the bull fine thread, and outer wall is the single head coarse-pitch thread.And the internal thread of heat exchanger tube is identical with externally threaded rotation direction.At externally threaded recessed position place, inside pipe wall is interior convex.
Below by accompanying drawing the utility model is described in further details.
Accompanying drawing is a structure chart of the present utility model.The utility model comprises bobbin carriage 1, bobbin carriage pass partition 2, housing 3, heat exchanger tube 4, deflection plate 5 and tube sheet 6, and its heat exchanger tube 4 inside and outside walls are equipped with screw thread, and inwall is the bull fine thread, and outer wall is the single head coarse-pitch thread.And the internal thread of heat exchanger tube 4 is identical with externally threaded rotation direction.At externally threaded recessed position place, inside pipe wall is interior convex.
In a word, because the utility model has adopted the heat exchanger tube of said structure, make the laminar condition of the heat exchanger tube inner fluid of heat exchanger become the helical form turbulent condition, changed the flow regime of inside and outside wall surface current body, increased the medial and lateral exothermic coefficient, increase the heat transfer area of heat exchanger tube greatly, thereby improved exchange capability of heat effectively.Coefficient K of the present utility model is 3000～5500/K.m
2, to compare with the light pipe heat exchanger, heat transfer coefficient has improved 2～3 times.
Claims (2)
1, a kind of double-cut tube heat exchanger, comprise bobbin carriage (1), bobbin carriage pass partition (2), housing (3), heat exchanger tube (4), deflection plate (5) and tube sheet (6), it is characterized in that heat exchanger tube (4) inside and outside wall is equipped with screw thread, inwall is the bull fine thread, and outer wall is the single head coarse-pitch thread.
According to the described double-cut tube heat exchanger of claim 1, it is characterized in that 2, the internal thread of heat exchanger tube (4) is identical with externally threaded rotation direction; At externally threaded recessed position place, inside pipe wall is interior convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96227603 CN2253459Y (en) | 1996-04-11 | 1996-04-11 | Double screwed pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96227603 CN2253459Y (en) | 1996-04-11 | 1996-04-11 | Double screwed pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2253459Y true CN2253459Y (en) | 1997-04-30 |
Family
ID=33905678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96227603 Expired - Fee Related CN2253459Y (en) | 1996-04-11 | 1996-04-11 | Double screwed pipe heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2253459Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458348C (en) * | 2005-12-13 | 2009-02-04 | 金龙精密铜管集团股份有限公司 | Efficient heat-exchanging pipe of evaporator for electric refrigerator set |
-
1996
- 1996-04-11 CN CN 96227603 patent/CN2253459Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458348C (en) * | 2005-12-13 | 2009-02-04 | 金龙精密铜管集团股份有限公司 | Efficient heat-exchanging pipe of evaporator for electric refrigerator set |
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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 |