CN201034425Y - Double-walled cannula exchanger - Google Patents
Double-walled cannula exchanger Download PDFInfo
- Publication number
- CN201034425Y CN201034425Y CNU2007201433373U CN200720143337U CN201034425Y CN 201034425 Y CN201034425 Y CN 201034425Y CN U2007201433373 U CNU2007201433373 U CN U2007201433373U CN 200720143337 U CN200720143337 U CN 200720143337U CN 201034425 Y CN201034425 Y CN 201034425Y
- Authority
- CN
- China
- Prior art keywords
- wall
- heat exchanger
- double
- inner layer
- 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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Abstract
Provided is a double-wall casing heat exchanger which comprises an external pipe and a heat exchange pipe arranged in the external pipe. The pipe wall of the heat exchange pipe is composed of an outer layer wall and an inner layer wall which are fixedly connected with each other. The connection mode between the out layer wall and the inner layer wall is interference fit. The double-wall structure can provide an additional protection for the pipe wall of the heat exchange pipe and can avoid fluid leakage. Threads are arranged on the inner and outer surfaces of the outer layer wall and the inner layer wall to increase heat exchange area and enhance heat exchange effect.
Description
Technical field
The utility model belongs to a kind of heat-exchanger rig, as the heat exchanger tube in evaporimeter or the condenser.
Background technology
Existing heat exchanger is the single wall formula, and tube wall may be subjected to the damage of stress in process, or in use be subjected to influence such as corrosion, cause tube wall to break, the heat exchange effect is descended, heavy then make the unit damage.
The utility model content
A purpose of the present utility model is to solve weak point of the prior art, and a kind of double walled heat exchanger is provided, and tube wall is had double shielding, can avoid the corrosion of stress and use, and the safety of protection whole system increases the service life.
For achieving the above object, double wall casing heat exchanger of the present utility model comprises outer tube, is provided with heat exchanger tube in outer tube, and the tube wall of heat exchanger tube is made of outer wall and inner layer wall, and outer wall and inner layer wall are fixed together.
Preferably, the connected mode between outer wall and the inner layer wall is an interference fit.
Preferably, the surfaces externally and internally of outer wall and inner layer wall all is provided with screw thread.
Have only the heat exchanger of one deck tube wall to break or when producing perforation, can cause fluid to leak.Double walled heat exchanger can provide the protection of many one decks, fluid can not take place easily leak.Adopt interference fit between outer wall and the inner layer wall, make the structure of tube wall very stable.The surfaces externally and internally of outer wall and inner layer wall all is provided with screw thread, can increase heat exchange area, strengthens the heat exchange effect.
Description of drawings
Fig. 1 is the main cutaway view of double wall casing heat exchanger described in the utility model.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
The specific embodiment
Fig. 1 is the main cutaway view of double wall casing heat exchanger described in the utility model, and with reference to Fig. 1, the utility model comprises outer tube 1, in outer tube 1, be provided with heat exchanger tube, the tube wall of heat exchanger tube is made of outer wall 2 and inner layer wall 3, and outer wall 2 and inner layer wall 3 adopt interference fit, are fixed together.
Fig. 2 is the A-A cross-sectional view of Fig. 1, with reference to Fig. 2, is intermediate cavity 4 between outer tube 1 and the heat exchanger tube, is inner chamber 5 in the heat exchanger tube.Cold and hot two kinds of fluids flow in two cavitys respectively, carry out heat exchange by heat exchanger tube.The outer wall of heat exchanger tube and the surfaces externally and internally of inner layer wall all are provided with screw thread, can increase heat exchange area, strengthen the heat exchange effect.
Claims (3)
1. a double wall casing heat exchanger comprises outer tube, is provided with heat exchanger tube in outer tube, it is characterized in that: the tube wall of heat exchanger tube is made of outer wall and inner layer wall, and outer wall and inner layer wall are fixed together.
2. double wall casing heat exchanger according to claim 1 is characterized in that: the connected mode between outer wall and the inner layer wall is an interference fit.
3. double wall casing heat exchanger according to claim 1 is characterized in that: the surfaces externally and internally of outer wall and inner layer wall all is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201433373U CN201034425Y (en) | 2007-04-19 | 2007-04-19 | Double-walled cannula exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201433373U CN201034425Y (en) | 2007-04-19 | 2007-04-19 | Double-walled cannula exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034425Y true CN201034425Y (en) | 2008-03-12 |
Family
ID=39195314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201433373U Expired - Fee Related CN201034425Y (en) | 2007-04-19 | 2007-04-19 | Double-walled cannula exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201034425Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791748A (en) * | 2014-01-11 | 2014-05-14 | 西北大学 | Safety type steam generator heat exchanger pipeline structure |
| CN110814320A (en) * | 2019-09-27 | 2020-02-21 | 中国电器科学研究院股份有限公司 | Casting method of tubular heat exchanger and tubular heat exchanger |
-
2007
- 2007-04-19 CN CNU2007201433373U patent/CN201034425Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791748A (en) * | 2014-01-11 | 2014-05-14 | 西北大学 | Safety type steam generator heat exchanger pipeline structure |
| CN103791748B (en) * | 2014-01-11 | 2015-09-09 | 西北大学 | A kind of safety type steam generator heat exchanger tube structure |
| CN110814320A (en) * | 2019-09-27 | 2020-02-21 | 中国电器科学研究院股份有限公司 | Casting method of tubular heat exchanger and tubular heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU JINLUN ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: ZHONG XUELIAN Effective date: 20100525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510000 GUANGZHOU JINLUN ELECTRICAL APPLIANCE TECHNOLOGY CO., LTD., JINLUN INDUSTRY PART, SHENSHAN, JIANGGAO TOWN, BAIYUN DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 510800 NO.28 TUANJIE AVENUE, TUANJIE VILLAGE, XINHUA STREET, HUADOU DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100525 Address after: 510800, Guangzhou, Huadu District, Xinhua Street, unity village, East Avenue, unity, No., No. 28 Patentee after: Guangzhou Jinlun Electric Appliance Co., Ltd. Address before: Jianggao Kamiyama Jin Lun Industrial Park, Baiyun District of Guangzhou City, Guangdong province 510000 Guangzhou Jinlun Electrical Technology Co. Ltd. Patentee before: Zhong Xuelian |
|
| DD01 | Delivery of document by public notice |
Addressee: Hong Qinghui Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Hong Qinghui Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080312 Termination date: 20120419 |