CN202002529U - Coiled wear-resistant eccentric pipe and heat exchanger formed by same - Google Patents
Coiled wear-resistant eccentric pipe and heat exchanger formed by same Download PDFInfo
- Publication number
- CN202002529U CN202002529U CN2010206003918U CN201020600391U CN202002529U CN 202002529 U CN202002529 U CN 202002529U CN 2010206003918 U CN2010206003918 U CN 2010206003918U CN 201020600391 U CN201020600391 U CN 201020600391U CN 202002529 U CN202002529 U CN 202002529U
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- wear
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- steel pipe
- heat exchanger
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Abstract
Disclosed are a snakelike wear-resistant eccentric pipe and a heat exchanger formed by the same. The snakelike wear-resistant eccentric pipe is a steel pipe and is characterized in that the thickest positions of a plurality of curved wear-resistant eccentric pipes and the thinnest positions of adjacent steel pipes are in butt joint and then welded to form the coiled pipe. The heat exchanger consists of a plurality of the snakelike wear-resistant eccentric pipes and comprises a superheater, a reheater and a coal economizer. The thickness of the wall of the steel pipe is reasonably set, the thickness of the wall of a windward side of the steel pipe is increased while the thickness of the wall of a leeward side of the steel pipe is reduced, so that the service life of the heat exchanger is prolonged on the premise without increasing weight of the steel pipe.
Description
Technical field
The utility model belongs to a kind of steel pipe and heat exchanger, is specially snakelike wear-resisting eccentric pipe and by its heat exchanger of making.
Technical background
Superheater, reheater, economizer are the significant components of boiler, and it plays an important role for the heat exchange of boiler, and it is made up of some concentric snakelike steel tubes of inside and outside circle of wall thickness that wait.The windward side of superheater, reheater, economizer in the actual use is owing to be subjected to the high temperature in the boiler stove, the effect of burn into medium wearing and tearing, often the windward side attenuate because of superheater, reheater, economizer causes pipe explosion accident, and its lee face is then more intact.
Intellectual Property Right Bureau of the RPC has announced that a kind of name is called the utility model patent of wear-resisting eccentric tubing, and patent (application) number is 200820071445.9, and it relates to a kind of wear-resisting eccentric tubing, belongs to slurry conveying tubing.The central point of this pipe outer surface and the central point of inner surface under the situation of using equivalent material, operating pressure to allow, make a side thickness of tubing not at same position, and another sidewall is thin.The cross section of this tubing is eccentric circular.During use, a side of wall thickness as the bottom, can be increased the wear-resisting time of tubing bottom, thereby improve the service life of tubing, easy to use and can not increase cost.Advantage is: simple in structure, easy to use, when not increasing production cost, improved the service life of tubing, and many costs of effectively having avoided the mode of traditional rotation tubing to bring, practical.
Summary of the invention
The utility model provides a kind of novel snakelike wear-resisting eccentric pipe and a kind of by its heat exchanger of making, purpose is the reasonable distribution thickness of steel pipe, increase steel pipe windward side wall thickness, reduce steel pipe lee face wall thickness, on the basis that does not increase steel pipe weight, increase the service life of superheater, reheater, economizer.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of snakelike wear-resisting eccentric pipe, it comprises the wear-resisting eccentric seamless steel pipe and the weld seam of some bendings, it is characterized in that, the thickness of the wear-resisting eccentric seamless steel pipe of every bending is docked with the thinnest part of adjacent steel pipe, and coiled pipe is made in welding then.
A kind of heat exchanger is characterized in that it by the heat exchanger that some above-mentioned snakelike wear-resisting eccentric pipes are formed, comprises superheater, reheater, economizer, and during installation, the thicker side of thickness of steel pipe is as the windward side, and the thin side of thickness of steel pipe is as lee face.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and example.
Accompanying drawing 1 is that the A-A of accompanying drawing 2 is to view.
Accompanying drawing 2 is snakelike wear-resisting eccentric pipe heat exchanger schematic diagram.
The specific embodiment
A kind of snakelike wear-resisting eccentric pipe described in the present embodiment, it comprises the wear-resisting eccentric seamless steel pipe 4 and the weld seam 3 of some bendings, it is characterized in that, the thickness of the wear-resisting eccentric seamless steel pipe of every bending is docked with the thinnest part of another root steel pipe, coiled pipe is made in welding then.
A kind of heat exchanger described in the present embodiment, it is characterized in that it by the heat exchanger that some above-mentioned snakelike wear-resisting eccentric pipes are formed, comprises superheater, reheater, economizer, during installation, the thicker side of thickness of steel pipe is as windward side 1, and the thin side of thickness of steel pipe is as lee face 2.
In sum, the utility model advantage compared with prior art:
Existing superheater, reheater, economizer are etc. that the snakelike steel tube of wall thickness forms, and the utility model is by the coiled wear-resistant eccentric pipe group, and the thicker side of thickness of pipe wall is as the windward side, and the thinner side of thickness of pipe wall is as lee face. Its advantage is: on the basis that does not increase steel weight, because the thicker side of thickness of pipe wall contacts with wear-resistant medium, increased the service life of superheater, reheater, economizer.
Claims (2)
1. snakelike wear-resisting eccentric pipe, it comprises the wear-resisting eccentric seamless steel pipe (4) and the weld seam (3) of some bendings, it is characterized in that, the thickness of the wear-resisting eccentric seamless steel pipe of every bending is docked with the thinnest part of adjacent steel pipe, and coiled pipe is made in welding then.
2. heat exchanger, it is characterized in that the heat exchanger that it is made up of the described snakelike wear-resisting eccentric pipe of some claims 1, comprise superheater, reheater, economizer, during installation, the thicker side of thickness of steel pipe is as windward side (1), and the thin side of thickness of steel pipe is as lee face (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206003918U CN202002529U (en) | 2010-10-22 | 2010-10-22 | Coiled wear-resistant eccentric pipe and heat exchanger formed by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206003918U CN202002529U (en) | 2010-10-22 | 2010-10-22 | Coiled wear-resistant eccentric pipe and heat exchanger formed by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202002529U true CN202002529U (en) | 2011-10-05 |
Family
ID=44705266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206003918U Expired - Fee Related CN202002529U (en) | 2010-10-22 | 2010-10-22 | Coiled wear-resistant eccentric pipe and heat exchanger formed by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202002529U (en) |
-
2010
- 2010-10-22 CN CN2010206003918U patent/CN202002529U/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: 20111005 Termination date: 20131022 |