CN2638014Y - Steamless steel pipe for heat exchanger - Google Patents
Steamless steel pipe for heat exchanger Download PDFInfo
- Publication number
- CN2638014Y CN2638014Y CN 03277615 CN03277615U CN2638014Y CN 2638014 Y CN2638014 Y CN 2638014Y CN 03277615 CN03277615 CN 03277615 CN 03277615 U CN03277615 U CN 03277615U CN 2638014 Y CN2638014 Y CN 2638014Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- heat exchanger
- pipe
- tube
- seamless steel
- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a jointless steel tube used for a heat exchanger, which is characterized in that the jointless steel tube is a U-shaped tube and the two straight side tubes on the U-shaped tube are screw thread tube. The heat exchanger equipment by adopting the U-shaped jointless steel screw tube of the utility model has high heat exchanging efficiency, less welding joint and good safety performance.
Description
Technical field
The utility model relates to a kind of heat exchanger seamless steel pipe.
Background technology
Known heat exchanger all is a light pipe with seamless steel pipe, and the light pipe heat exchange area is little, and heat exchange property is poor, and heat exchange efficiency is low; Inner tubal wall easily produces the dirt resistance on the other hand; Simultaneously, these seamless steel pipes all are straight tubes, and when making heat transmission equipment, welding point is many, and there is potential safety hazard in equipment, and functional reliability is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of seamless steel pipe that is used for heat exchanger that has than high heat-exchanging performance.
Realize that the above-mentioned purpose technical solution is such:
The heat exchanger seamless steel pipe comprises seamless steel pipe, it is characterized in that: described seamless steel pipe is the U-shaped pipe, and straight tube place in both sides is a screwed pipe on the U-shaped pipe.
Heat exchanger seamless steel pipe according to above-mentioned is characterized in that: straight tube place, the both sides tube wall of described U-shaped pipe is concavo-convex screw thread tube wall.
The utility model is after rolled threaded on the tube wall at the two ends of seamless steel pipe, bends to the U-shaped pipe again.After rolled threaded on the tube wall, increased the steel pipe inner and outer surface area, made heat transferring medium can touch the surface of steel pipe more.Comparing general overall heat-transfer coefficient with common light pipe can be enhanced about more than once, and saves the heat exchange area of about 30-40%, or under identical heat exchange area, can reclaim the heat more than 60% more.Owing to inside and outside the pipe of screwed pipe thread protrusion is arranged all, can change the mobile direction of fluid effectively and wash away tube wall simultaneously, prevent the generation of dirt resistance, reach antiscale and self-cleaning purpose, realize higher heat-transfer effect.With the heat transmission equipment that the utility model U screw thread seamless steel pipe is made, welding point is few, and security performance is good.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
In conjunction with the accompanying drawings, the utility model is further described by embodiment.
This heat exchanger seamless steel pipe is a U-shaped pipe 1, and straight tube place, the both sides tube wall of U-shaped pipe is concavo-convex screw thread tube wall 2, sees Fig. 1.
The screw thread worker added-time, according to thread parameter, select corresponding processing mold, according to the trade mark and the depth of thread of steel pipe, can carry out twice screw thread and shape.
Straight tube bending adds man-hour, according to the radius of curvature R of U-shaped pipe, selects corresponding bending mould to carry out bending machining.
After the steel pipe cold working, should carry out stress and eliminate heat treatment.
Claims (2)
1, the heat exchanger seamless steel pipe comprises seamless steel pipe, it is characterized in that: described seamless steel pipe is the U-shaped pipe, and straight tube place in both sides is a screwed pipe on the U-shaped pipe.
2, heat exchanger seamless steel pipe according to claim 1 is characterized in that: straight tube place, the both sides tube wall of described U-shaped pipe is concavo-convex screw thread tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277615 CN2638014Y (en) | 2003-08-11 | 2003-08-11 | Steamless steel pipe for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277615 CN2638014Y (en) | 2003-08-11 | 2003-08-11 | Steamless steel pipe for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2638014Y true CN2638014Y (en) | 2004-09-01 |
Family
ID=34302907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277615 Expired - Fee Related CN2638014Y (en) | 2003-08-11 | 2003-08-11 | Steamless steel pipe for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2638014Y (en) |
-
2003
- 2003-08-11 CN CN 03277615 patent/CN2638014Y/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 | ||
| ASS | Succession or assignment of patent right |
Owner name: ANHUI TIANDA OIL PIPE CO.LTD. Free format text: FORMER OWNER: TIANCHANG CITY STEAMLESS STEEL PIPE FACTORY, ANHUI TIANDA ENTERPRISE GROUP Effective date: 20060804 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060804 Address after: 239311 copper Town, Anhui, Tianchang Patentee after: Anhui Tianda Oil Pipe Co., Ltd. Address before: 239311 copper Town, Anhui, Tianchang Patentee before: Tianchang City Seam-Less Steel Pipe Factroy, Anhui Tianda Enterprise Group |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040901 Termination date: 20100811 |