CN2506597Y - Wearing-reducing elbow pipe for material conveying pipeline - Google Patents
Wearing-reducing elbow pipe for material conveying pipeline Download PDFInfo
- Publication number
- CN2506597Y CN2506597Y CN 01266704 CN01266704U CN2506597Y CN 2506597 Y CN2506597 Y CN 2506597Y CN 01266704 CN01266704 CN 01266704 CN 01266704 U CN01266704 U CN 01266704U CN 2506597 Y CN2506597 Y CN 2506597Y
- Authority
- CN
- China
- Prior art keywords
- elbow
- material conveying
- conveying pipe
- straight tube
- short straight
- 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
The utility model discloses a grinding reducing elbow of a material conveying pipe, comprising a angle part of the elbow and a short straight pipe connected to the left and the right of the angle part, the angle part of the elbow is a hollow sphere 4, the inside of a short straight pipe 6 is provided with a liner pipe 7, the liner pipe 7 is made of low manganese wear-resistant steel which is undergone quenching treatment or steel with quenching hardness of HRC 58 plus or minus 10. The utility model can greatly reduce the erosion to the elbow caused by the grinding material and reduce the scouring erosion to the least extent so as to prolong the service life of the elbow and cause the synchronic failure of the elbow and the conveying pipe. Therefore, the utility model can reduce the times of changing elbows or shutdown wielding repair and improve the cycles of safe operation of boilers, engineering and mining equipments.
Description
(1). technical field
The utility model relates to a kind of elbow, belongs to a kind of wear-reducing elbow of material conveying pipe that is applicable to power industry coal fired thermal power plant and relevant industrial and mineral.
(2). background technology
For a long time; the corner elbow that power industry coal fired thermal power plant and relevant industrial and mineral are used for material conveying pipe is that cast tube or low carbon steel pipe hot bending become; lost efficacy in a short time because of the material erosive wear is too fast; cause that to change elbow frequent and shut down soldering and repair; a large amount of wastes of manpower, material resources and fund have increased the number of times of startup-shutdown.
(3). summary of the invention
The purpose of this utility model provides a kind of wear-reducing elbow of material conveying pipe of long service life.
The purpose of this utility model is achieved in that it is to comprise the elbow rotation angle position and each bonded assembly short straight tube about it.The elbow rotation angle position is a hollow ball, establishes bushing pipe in the short straight tube, and bushing pipe is to be made by the steel that the antiwear low-manganese steel of Quenching Treatment or quenching hardness reach HRC58 ± 10.
The utility model can reduce abrasive material greatly elbow is worn and torn; make the wearing and tearing of washing away be reduced to minimum degree,, elbow and delivery duct are lost efficacy the same period to prolong the service life of elbow; reduce the replacing elbow or shut down soldering repairing number of times, improved boiler and industrial and mineral equipment safety operation cycle.
(4). description of drawings
Fig. 1 is the structural representation of the utility model embodiment
(5). the specific embodiment
With reference to Fig. 1, it is made up of elbow rotation angle position and its left and right sides Ge Lian one joint short straight tube 6, bushing pipe 7.The elbow rotation angle position is a hollow ball 4, establishes bushing pipe 7 in the short straight tube 6, respectively is provided with the hole 8 of Φ 20 * 5 on the short straight tube 6, can be used for built-up welding or mechanical method fixation bushing pipe 7.Bushing pipe 7 is to be made by the steel that the antiwear low-manganese steel of Quenching Treatment or quenching hardness reach HRC58 ± 10.The opposite end that bushing pipe 7 stretches into hollow ball 4 separates, and the material of conveying is built up on hollow ball 4 inwalls, also can reduce the wearing and tearing of material to elbow.Excessive place between hollow ball 4 and the short straight tube 6 establishes semicircle the 2, the 3rd, in order to reduce stress concentration, to gain in strength.The interior diameter of short straight tube 6 is identical with the interior external diameter of material conveying pipe with overall diameter, and the material chemical constitution of hollow ball 4 and short straight tube 6 is identical with material conveying pipe; The internal diameter of short straight tube 6 is external diameters of bushing pipe 7, and the external diameter of hollow ball 4 is 1～2 times of material conveying pipe external diameter.Bending towards 1 angle in the elbow rotation angle position is to decide according to material conveying pipe design-calculated trend, the hollow ball 4 inner chamber centre ofs sphere bend towards 1 direction skew in the elbow rotation angle position, the wall thickness placed in the middle that bends towards 1 hollow ball 4 walls in the elbow rotation angle position is a minimum wall thickness (MINI W.) 10, the wall thickness placed in the middle of the outer hollow ball that bends towards 4 walls of elbow rotation angle position is a thickest 11, and minimum wall thickness (MINI W.) 10 is 1～1.5 times of short straight tube 6 wall thickness.Bushing pipe 7 also long straight tube stretch in the delivery duct.
Claims (4)
1. wear-reducing elbow of material conveying pipe, be to comprise the elbow rotation angle position and each bonded assembly short straight tube about it, it is characterized in that: the elbow rotation angle position is hollow ball (4), establish bushing pipe (7) in the short straight tube (6), bushing pipe (7) is to be made by the steel that the antiwear low-manganese steel of Quenching Treatment or quenching hardness reach HRC58 ± 10.
2. wear-reducing elbow of material conveying pipe according to claim 1 is characterized in that: bushing pipe (7) also long straight tube stretch in the delivery duct.
3. wear-reducing elbow of material conveying pipe according to claim 1 is characterized in that: hollow ball (4) and short straight tube (6) are the steel of same material with material conveying pipe; The external diameter of hollow ball (4) is 1～2 times of material conveying pipe external diameter; The minimum wall thickness (MINI W.) (10) of hollow ball (4) is 1～1.5 times of short straight tube (6) wall thickness.
4. wear-reducing elbow of material conveying pipe according to claim 1 is characterized in that: the angle that bends towards (1) in the elbow rotation angle position is to decide according to material conveying pipe design-calculated trend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266704 CN2506597Y (en) | 2001-10-25 | 2001-10-25 | Wearing-reducing elbow pipe for material conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266704 CN2506597Y (en) | 2001-10-25 | 2001-10-25 | Wearing-reducing elbow pipe for material conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2506597Y true CN2506597Y (en) | 2002-08-21 |
Family
ID=33673326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266704 Expired - Fee Related CN2506597Y (en) | 2001-10-25 | 2001-10-25 | Wearing-reducing elbow pipe for material conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2506597Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104620037A (en) * | 2012-09-18 | 2015-05-13 | 株式会社利富高 | Curved tube structure and die for forming curved tube |
-
2001
- 2001-10-25 CN CN 01266704 patent/CN2506597Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104620037A (en) * | 2012-09-18 | 2015-05-13 | 株式会社利富高 | Curved tube structure and die for forming curved tube |
| CN106382430A (en) * | 2012-09-18 | 2017-02-08 | 株式会社利富高 | Curved tube structure and die for forming curved tube |
| CN104620037B (en) * | 2012-09-18 | 2017-06-06 | 株式会社利富高 | Curved tube is constructed and curved tube forming metal mould |
| US10253913B2 (en) | 2012-09-18 | 2019-04-09 | Nifco Inc. | Curved tube structure and die for forming curved tube |
| CN106382430B (en) * | 2012-09-18 | 2019-12-31 | 株式会社利富高 | Curved tube structure and metal mold for forming curved 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 |