CN106439347A - 90-degree bent pipe guide piece arrangement method - Google Patents
90-degree bent pipe guide piece arrangement method Download PDFInfo
- Publication number
- CN106439347A CN106439347A CN201610947828.7A CN201610947828A CN106439347A CN 106439347 A CN106439347 A CN 106439347A CN 201610947828 A CN201610947828 A CN 201610947828A CN 106439347 A CN106439347 A CN 106439347A
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- CN
- China
- Prior art keywords
- bent pipe
- flow deflector
- guide piece
- bend pipe
- flow
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a 90-degree bent pipe guide piece arrangement method. The 90-degree bent pipe guide piece arrangement method comprises a 90-degree bent pipe, a guide piece A and a guide piece B. Two guide pieces are arranged in the 90-degree bent pipe, and are respectively the guide piece A and the guide piece B; the guide piece A is near the inner side of the bent pipe; and the guide piece B is near the outer side of the bent pipe. The guide pieces are arranged according to a golden ratio, that is, the guide piece B is arranged in the inner diameter place of the bent pipe from the inner wall of the outer side of the bent pipe by 0.618 time, and the guide piece A is arranged on the guide piece B from the inner wall of the inner side of the bent pipe by 0.618 time in the longitudinal section of the bent pipe. In the fluid flowing direction, after the guide piece B passes through the bent pipe, one part of extension section is generated; and the distance of the extension section is 0.3 time of the inner diameter of the bent pipe. The guide pieces in the bent pipe are reasonably arranged to reduce or eliminate complex flowing conditions in an elbow, so that the flowing field distribution is effectively improved, the pipe noise caused by unstable flowing is reduced, the reliability of the bent pipe is improved, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of 90 ° of bend pipe flow deflector method for arranging, belong to industrial piping system technical field.
Background technology
With the progress of China's science and technology, the developing rapidly of industrial or agricultural, being gradually improved of modernization, tubing
It is widely used in numerous areas, such as urban water supply pipeline, heating system, petroleum pipeline, nuclear power station water circulation system etc., these
The guarantee to people's living standard for the tubing, national economy develops in a healthy way and has a very important role, thereby ensure that pipeline
Stablizing of conveying is very necessary.
Bend pipe is the class important component in tubing, has the function of changing transmission medium flow direction, can play
The effects such as installation site regulation, in all kinds of industrial or agricultural device such as electric power, nuclear industry, petrochemical industry, agricultural equipment, and naval vessel,
Have a wide range of applications in aircraft and daily life.
The irregular flowing in bend pipe of quality, momentum or energy stream can cause tubing to vibrate, and produces noise, this is not only
The production of impact people and living environment, also can cause serious accident under certain condition.Due to pressure fluctuation, cavitation, water
The drastically change of the effects of many factors such as hammer and pipe bent position fluid motion state makes tubing produce vibration and noise, this
Not only reduce the reliability of tubing work, also harmful effect is produced to surrounding, therefore study and how to improve in bend pipe
Flow behavior necessary.
90 ° of elbows are conventional part, the flowing in elbow and its complexity in tubing, such as the separation stream of near-wall
Dynamic, Secondary Flow on section etc., this proposes very high requirement to the design of elbow, for guaranteeing the reliability of elbow and using the longevity
Life is it is necessary to reasonably be designed to the internal structure of elbow.
Irregularly flow the pipe vibration causing for improving bend pipe endogenous cause of ill fluid, improve the reliability of work, can be curved
Pipe particular position inside installs varying number, the flow deflector of different distributions form additional.The distribution form of flow deflector has many kinds, common
Have equal proportion be distributed, golden ratio distribution etc..Can determine various by way of numerical simulation and experiment combines
The quality of arrangement.
In the arrangement of bend pipe flow deflector, the selection of flow deflector number, the placement of the position of flow deflector, flow deflector is followed by
No have extension transition, is all the problem being contemplated that.Flow deflector number is very few, flow field improve inconspicuous, number excessive although
Obvious guide functions can be played, but local resistance is excessive, it will impact flow of fluid.Because bend pipe has certain curvature, water conservancy diversion
Piece is to place by equal proportion when placing, or places in other ratios, and the flow behavior of fluid all can have obvious difference.Through
Numerical simulation and experiment compares, if finding to choose two panels flow deflector, and flow deflector is arranged according to golden ratio, and from bend pipe
Add the extension of certain length after the near flow deflector in outside, will play extraordinary guide functions, the flow velocity of fluid and to pipe
The pressure in road can will reduce, in suitable scope, the duct noise that flowing instability causes well, extend bend pipe and use
Life-span.
Content of the invention
The present invention relates to a kind of 90 ° of bend pipe flow deflector method for arranging.
Technical solution：
A kind of 90 ° of bend pipe flow deflector method for arranging, including 90 ° of bend pipes, flow deflector A, flow deflector B.It is characterized in that in 90 ° of bend pipes
2 flow deflectors of arrangement, respectively flow deflector A, flow deflector B, inside bend pipe, flow deflector B is outside bend pipe for flow deflector A.
Flow deflector arranges, on bend pipe vertical profile tangent plane, flow deflector B is arranged in inwall distance outside bend pipe and is according to golden ratio
0.618 times of bend pipe inner radius, i.e. a:D=0.618, flow deflector A are arranged in 0.618 times of inwall distance inside flow deflector B and bend pipe
Place, i.e. b:(d-a)=0.618.On fluid flow direction, flow deflector B, after elbow, has more a part of extension, extension
Distance is 0.3 times of bend pipe internal diameter, i.e. c:d=0.3.
Beneficial effect：
In this 90 ° of bend pipe flow deflector method for arranging, select two panels flow deflector, and flow deflector is arranged according to golden ratio, and
Add the extension of certain length after flow deflector close to outside bend pipe, extraordinary guide functions, the stream of fluid will be played
Speed and will be in suitable scope to the pressure of pipeline.The reasonable Arrangement of bend pipe internal diversion piece can reduce or eliminate elbow
Complex Flows state, effectively improve Flow Field Distribution, reduce the duct noise that flowing instability causes, improve the reliability of bend pipe
Property, increase the service life.
Brief description：
Fig. 1 is a kind of 90 ° of bend pipe flow deflector method for arranging bend pipe vertical section schematic diagrams.
In figure：1.90 ° of bend pipes, 2. flow deflector A, 3. flow deflector B.
Fig. 2 is a kind of 90 ° of bend pipe flow deflector method for arranging bend pipe vertical section axonometric charts.
Fig. 3 is a kind of 90 ° of bend pipe flow deflector method for arranging elbow schematic cross section.
Specific embodiment：
The present invention is a kind of 90 ° of bend pipe flow deflector method for arranging, including 90 ° of bend pipes, flow deflector A, flow deflector B.Described 90 ° curved
In pipe flow deflector method for arranging, arrange 2 flow deflectors, respectively flow deflector A, flow deflector B in 90 ° of bend pipes, flow deflector A is close
Inside bend pipe, flow deflector B is outside bend pipe.Flow deflector is arranged according to golden ratio, on bend pipe vertical profile tangent plane, flow deflector B
Being arranged in inwall distance outside bend pipe is 0.618 times of bend pipe inner radius, i.e. a:D=0.618, flow deflector A is arranged in flow deflector B
At 0.618 times of inwall distance inside bend pipe, i.e. b:(d-a)=0.618.On fluid flow direction, flow deflector B is through curved
After head, have more a part of extension, extension distance is 0.3 times of bend pipe internal diameter, i.e. c:d=0.3.
Claims (1)
1. a kind of 90 ° of bend pipe flow deflector method for arranging, including：（1）90 ° of bend pipes,（2）Flow deflector A,（3）Flow deflector B, its feature
It is：2 flow deflectors, respectively flow deflector A, flow deflector B is arranged in 90 ° of bend pipes；Flow deflector A inside bend pipe, water conservancy diversion
Piece B is outside bend pipe；Flow deflector is arranged according to golden ratio；On bend pipe vertical profile tangent plane, flow deflector B is arranged in outside bend pipe
Side inwall distance is 0.618 times of bend pipe inner radius, i.e. a:D=0.618, flow deflector A are arranged in inwall inside flow deflector B and bend pipe
At 0.618 times of distance, i.e. b:(d-a)=0.618；On fluid flow direction, flow deflector B, after elbow, has more a part
Extension, extension distance is 0.3 times of bend pipe internal diameter, i.e. c:d=0.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947828.7A CN106439347A (en) | 2016-10-27 | 2016-10-27 | 90-degree bent pipe guide piece arrangement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610947828.7A CN106439347A (en) | 2016-10-27 | 2016-10-27 | 90-degree bent pipe guide piece arrangement method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439347A true CN106439347A (en) | 2017-02-22 |
Family
ID=58178772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610947828.7A Pending CN106439347A (en) | 2016-10-27 | 2016-10-27 | 90-degree bent pipe guide piece arrangement method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439347A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864546A (en) * | 2016-04-26 | 2016-08-17 | 哈尔滨工程大学 | 90-degree low-resistance bend |
| CN106838521A (en) * | 2017-04-10 | 2017-06-13 | 中冶东方控股有限公司 | A kind of elbow with deflector |
| CN108051175A (en) * | 2017-11-30 | 2018-05-18 | 国家电网公司 | Cycle wind tunnel device in laboratory |
| CN109282105A (en) * | 2018-11-29 | 2019-01-29 | 中国船舶重工集团公司第七0四研究所 | Ball elbow vibration damping elbow with deflector |
| CN109812411A (en) * | 2019-01-28 | 2019-05-28 | 中国石油天然气集团公司 | A kind of blackage clearing flow dredging apparatus and its assemble method for oil transportation Pump Suction Nozzle |
| CN112749439A (en) * | 2019-10-30 | 2021-05-04 | 沪东重机有限公司 | Method for arranging flow deflectors for splicing bent pipes |
| CN114234424A (en) * | 2021-10-14 | 2022-03-25 | 安徽省建筑设计研究总院股份有限公司 | Air pipe static pressure box with variable arc guide vanes based on dissipation analysis |
| US20220299146A1 (en) * | 2021-03-19 | 2022-09-22 | Akron Brass Company | Fluid monitor elbow |
Citations (3)
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| CN2465061Y (en) * | 2001-02-21 | 2001-12-12 | 聂法玉 | Coupling flow guiding device for residence shared exhausting duct |
| FR2867239A1 (en) * | 2004-03-05 | 2005-09-09 | Peugeot Citroen Automobiles Sa | Gas stream flow guiding device for spark ignition engine, has conduit comprising in inner surface of its bent part, parallel ribs and/or slots, for assuring guiding of gas stream flow across conduit |
| CN101567026A (en) * | 2009-06-05 | 2009-10-28 | 北京科技大学 | Optimization design method for damping elbow of fluid-conveying pipeline guide structure |
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2016
- 2016-10-27 CN CN201610947828.7A patent/CN106439347A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465061Y (en) * | 2001-02-21 | 2001-12-12 | 聂法玉 | Coupling flow guiding device for residence shared exhausting duct |
| FR2867239A1 (en) * | 2004-03-05 | 2005-09-09 | Peugeot Citroen Automobiles Sa | Gas stream flow guiding device for spark ignition engine, has conduit comprising in inner surface of its bent part, parallel ribs and/or slots, for assuring guiding of gas stream flow across conduit |
| CN101567026A (en) * | 2009-06-05 | 2009-10-28 | 北京科技大学 | Optimization design method for damping elbow of fluid-conveying pipeline guide structure |
Non-Patent Citations (2)
| Title |
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| 王艳林: ""输液管路弯头固-液耦合动力学研究"，王艳林，振动与冲击，2010年第29卷第12期，第79-83页，2010年", 《振动与冲击》 * |
| 程杨栋: ""机场消防车消防炮的优化改进"，程杨栋，液压气动与密封，2013年第8期，第17-21页，2013年", 《液压气动与密封》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864546A (en) * | 2016-04-26 | 2016-08-17 | 哈尔滨工程大学 | 90-degree low-resistance bend |
| CN106838521A (en) * | 2017-04-10 | 2017-06-13 | 中冶东方控股有限公司 | A kind of elbow with deflector |
| CN106838521B (en) * | 2017-04-10 | 2019-07-30 | 中冶西北工程技术有限公司 | A kind of elbow with deflector |
| CN108051175A (en) * | 2017-11-30 | 2018-05-18 | 国家电网公司 | Cycle wind tunnel device in laboratory |
| CN109282105A (en) * | 2018-11-29 | 2019-01-29 | 中国船舶重工集团公司第七0四研究所 | Ball elbow vibration damping elbow with deflector |
| CN109812411A (en) * | 2019-01-28 | 2019-05-28 | 中国石油天然气集团公司 | A kind of blackage clearing flow dredging apparatus and its assemble method for oil transportation Pump Suction Nozzle |
| CN112749439A (en) * | 2019-10-30 | 2021-05-04 | 沪东重机有限公司 | Method for arranging flow deflectors for splicing bent pipes |
| US20220299146A1 (en) * | 2021-03-19 | 2022-09-22 | Akron Brass Company | Fluid monitor elbow |
| CN114234424A (en) * | 2021-10-14 | 2022-03-25 | 安徽省建筑设计研究总院股份有限公司 | Air pipe static pressure box with variable arc guide vanes based on dissipation analysis |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20170222 |