CN2154959Y - Sleeve structure of sleeve type gas preheater - Google Patents
Sleeve structure of sleeve type gas preheater Download PDFInfo
- Publication number
- CN2154959Y CN2154959Y CN93214987U CN93214987U CN2154959Y CN 2154959 Y CN2154959 Y CN 2154959Y CN 93214987 U CN93214987 U CN 93214987U CN 93214987 U CN93214987 U CN 93214987U CN 2154959 Y CN2154959 Y CN 2154959Y
- Authority
- CN
- China
- Prior art keywords
- type gas
- helical
- wall
- gas preheater
- casing 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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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a casing tube structure of a casing tube type gas preheater. Two or more than two helical fins 3 which are mutually separated are arranged between the inner wall of an outer tube 2 and the outer wall of an inner tube 1, which forms the casing tube structure of a casing tube type gas preheater. The outer tube and the inner tube are sheathed on the same shaft. A planar annular sheet carries out the abscission ring, and then the planar annular sheet is pulled apart, which forms the helical fin 3. The relationship of the pulling length H of the planar annular sheet and the distance L between every two helical fins 3 is as follows: H/L=0.3-2.5. Compared with the casing tube structure of existing continuous helical fins, the heat transfer coefficient is the same, the resistance force is reduced by 35% or so, the manufacture and the fabrication are easy, the cost is lowered by 30% or so, and the installation is convenient.
Description
The utility model relates to a kind of sleeve structure of casing tube type gas preheater.
Before this, the sleeve structure of casing tube type gas preheater is and is provided with a long continuous helical fin between the interior pipe of coaxial package and outer tube, in order to strengthen the disturbance of air-flow in the circular passage between two pipes, augmentation of heat transfer, but because this helical fin is provided with along the sleeve pipe total length, it is big to form resistance, and is difficult for processing and manufacturing, the cost height is installed also inconvenience.
The purpose of this utility model is intended to make improvements according to above-mentioned problems of the prior art, to obtain a kind of sleeve structure that resistance reduces under the situation that does not reduce heat transfer coefficient, the helical fin processing and manufacturing is easy, cost is low, easy for installation.
For achieving the above object, the utility model proposes between the outer wall of inner tube of coaxial package and outer tube wall and be provided with two or more helical fins that has been separated from each other.
Structural representation when accompanying drawing is depicted as the utility model employing garden pipe.
Below in conjunction with drawings and Examples the utility model is further described: as shown in the figure, manage 1 in the garden shape of the utility model by coaxial package, outer tube 2 and helical fin 3 form.Between interior pipe 1 outer wall and outer tube 2 inwalls, be provided with two or more helical fins that is separated from each other 3, each helical fin 3 draws back after by garden, plane annular sheet metal abscission ring and forms, elongate as radially cutting the back, method with welding or hot-dip, helical fin 3 and outer wall of inner tube are fused, insert again in the outer tube 2.As shown in the figure, the pass of the distance L between the unfolded length H of above-mentioned helical fin 3 and per two helical fins 3 is: H/L=0.3～2.5 wherein are the utility model optimum structure parameter when H/L=1.
The utility model is compared with existing continuous helical fin sleeve structure, and heat transfer coefficient is suitable, and it is about 35% that resistance reduces, and is highly susceptible to processing and manufacturing, and cost is low about 30%, and it is also very convenient to install.
Claims (4)
1, a kind of sleeve structure of casing tube type gas preheater, comprise the outer tube of coaxial package, interior pipe and the helical fin that between outer wall of inner tube and outer tube wall, is provided with, it is characterized in that: between interior pipe (1) outer wall and outer tube (2) inwall, be provided with two or more helical fins that is separated from each other (3).
2, according to the sleeve structure described in the claim 1, it is characterized in that: wherein said helical fin (3) is for to form by drawing back behind the plane annular sheet material abscission ring.
3, according to the sleeve structure described in the claim 1,2, it is characterized in that: the pass of the distance L between wherein said helical fin (3) unfolded length H and per two helical fins (3) is: H/L=0.3～2.5.
4, according to the sleeve structure described in the claim 3, it is characterized in that: wherein said H/L=1 is an optimum value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93214987U CN2154959Y (en) | 1993-06-07 | 1993-06-07 | Sleeve structure of sleeve type gas preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93214987U CN2154959Y (en) | 1993-06-07 | 1993-06-07 | Sleeve structure of sleeve type gas preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2154959Y true CN2154959Y (en) | 1994-02-02 |
Family
ID=33795619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93214987U Expired - Fee Related CN2154959Y (en) | 1993-06-07 | 1993-06-07 | Sleeve structure of sleeve type gas preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2154959Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791836A (en) * | 2015-04-29 | 2015-07-22 | 浙江天源炉业科技有限公司 | Heat exchange device of heating furnace |
| CN106091751A (en) * | 2016-08-03 | 2016-11-09 | 马明辉 | Heat exchanger |
| CN106123381A (en) * | 2016-08-03 | 2016-11-16 | 马明辉 | Heat exchanger tube |
-
1993
- 1993-06-07 CN CN93214987U patent/CN2154959Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791836A (en) * | 2015-04-29 | 2015-07-22 | 浙江天源炉业科技有限公司 | Heat exchange device of heating furnace |
| CN106091751A (en) * | 2016-08-03 | 2016-11-09 | 马明辉 | Heat exchanger |
| CN106123381A (en) * | 2016-08-03 | 2016-11-16 | 马明辉 | Heat exchanger tube |
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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 |