CN102155477A - Rectifier for regulating velocity distribution of elbow pipe - Google Patents
Rectifier for regulating velocity distribution of elbow pipe Download PDFInfo
- Publication number
- CN102155477A CN102155477A CN 201110108385 CN201110108385A CN102155477A CN 102155477 A CN102155477 A CN 102155477A CN 201110108385 CN201110108385 CN 201110108385 CN 201110108385 A CN201110108385 A CN 201110108385A CN 102155477 A CN102155477 A CN 102155477A
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- rectifier
- elbow pipe
- bend pipe
- holes
- flow
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Abstract
The invention relates to a flow regulator, and particularly relates to a rectifier for regulating velocity distribution of an elbow pipe, which comprises a round plate and holes formed along the radial direction of the round plate. The rectifier is characterized in that: distribution of the holes is of an asymmetric mode, namely diameters of the holes close to the outside of the elbow pipe matched with the holes are smaller than those close to the inside of the elbow pipe matched with the holes. The rectifier for regulating velocity distribution of the elbow pipe has a unique structure, furthest eliminates the centrifugal impact force, and reduces the influence on service lives of other resistance parts closely following the rectifier, such as valves.
Description
Technical field
The present invention relates to a kind of flow conditioner, especially relate to a kind of rectifier of adjusting the bend pipe velocity flow profile.
Background technique
Flow conditioner is that a kind of elimination is undesired mobile, shortens the equipment of necessary flow development length.Gong Ying flow conditioner has a variety ofly in the market, but all rectification manufactures and designs at straight-tube portion.Bend pipe is one of choked flow piece in the process pipe, when fluid is flowed through bend pipe, will produce " velocity distribution distortion ", " rotating flow " and " unsteady flow " etc.In the pipeline of bend pipe, because the turning of fluid occurred from the centrifugal force of centre of curvature to tube outer wall, this just makes fluid when the straight line pipeline section of pipeline carries out the transition to bend loss, the increased pressure of outer wall and the pressure of inwall reduces.Therefore, flow rate of fluid will reduce at the outer wall place, and at inwall place flow velocity with corresponding increase, diffusion effect appears near outer wall, blockage effect is appearring near the inwall place.After fluid turns round when the bend pipe pipeline section carries out the transition to straight length, there is opposite phenomenon to take place again, be that diffusion effect appears in the inwall place, blockage effect appears near the outer wall, diffusion effect causes fluid to break away from inside and outside wall, simultaneously at the bending tube section fluid owing to the motion that inertia flows to outer wall has more aggravated to separate from inwall.Owing to separate the expansion of formed vortex on the length and width direction from inwall, make the main flow cross section dwindle significantly.Since the appearance of centrifugal force, and have boundary layer on the tube wall, in bend pipe, produce recovery stream such as lateral flow, secondary flow etc., promptly formed so-called eddy current pair.It is attached on the main flow parallel with conduit axis, makes streamline have helix shape.
By above-mentioned analysis, big or flow is when just flow velocity is big when pipe diameter, after fluid turns round from the bend pipe pipeline section, will produce very large asymmetric impact force, following closely other choked flow piece such as valve are produced huge damaging impact, thereby badly influence the life-span of choked flow piece such as valve.Also do not overcome at present the rectifier of above-mentioned defective.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of structure uniqueness, to greatest extent eliminate centrifugal impact force, reduce a kind of rectifier of adjusting the bend pipe velocity flow profile to the life-span influence of following closely other choked flow piece such as valve.
The present invention realizes in the following way:
A kind of rectifier of adjusting the bend pipe velocity flow profile, it comprises plectane and along the hole that it radially is provided with, it is characterized in that: above-mentioned hole be distributed as unsymmetric form, promptly near the diameter in the bend pipe outside that is mated less than diameter near the bend pipe inboard that is mated.
The present invention has following effect:
1) the structure uniqueness, eliminate following closely other choked flow piece such as the vibration of modulating valve etc., prolonged the working life of equipment: the board-like rectifier perforate of asymmetric reverse anchor ring method such as grade provided by the invention is distributed as unsymmetric form, the close bend pipe outside is because centrifugal action, rate of flow of fluid is higher, the perforate of board-like rectifier is less, effectively the suppression fluid flow velocity; And lower near the inboard rate of flow of fluid of bend pipe, the perforate of board-like rectifier is bigger, makes fluid flow resistance reduce, and flow velocity increases relatively.Distribute by above-mentioned particular structure, fluid is when flowing through bend pipe, the asymmetric apertures of plate type rectifier is carried out flow field adjustment effectively, make the fluid stream therein that flows through bend pipe be offset, obtain bigger decomposition and inhibition, eliminate following closely other choked flow piece such as the vibration of modulating valve etc., prolonged working life of equipment.
2) applied widely: rectifier provided by the invention is applicable to flange join type bend pipe, direct welding type bend pipe and pipeline welding formula bend pipe, by a large amount of tests and on-the-spot operation, this asymmetric reverse board-like regulator of anchor ring method that waits, overcome the deficiency of like product, using effect is very good, has improved the life-span of choked flow piece behind the bend pipe such as valve greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
A kind of rectifier of adjusting the bend pipe velocity flow profile, it comprises plectane 1 and along its hole that radially is provided with 2, as shown in Figure 1: above-mentioned hole 2 be distributed as unsymmetric form, promptly near the diameter in the bend pipe outside that is mated less than diameter near the bend pipe inboard that is mated.
Claims (1)
1. rectifier of adjusting the bend pipe velocity flow profile, it comprises plectane (1) and along its hole that radially is provided with (2), it is characterized in that: above-mentioned hole (2) be distributed as unsymmetric form, promptly near the diameter in the bend pipe outside that is mated less than diameter near the bend pipe inboard that is mated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110108385 CN102155477A (en) | 2011-04-28 | 2011-04-28 | Rectifier for regulating velocity distribution of elbow pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110108385 CN102155477A (en) | 2011-04-28 | 2011-04-28 | Rectifier for regulating velocity distribution of elbow pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102155477A true CN102155477A (en) | 2011-08-17 |
Family
ID=44437100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110108385 Pending CN102155477A (en) | 2011-04-28 | 2011-04-28 | Rectifier for regulating velocity distribution of elbow pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102155477A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099253A (en) * | 2018-10-15 | 2018-12-28 | 燕山大学 | A kind of shunt drag reduction bend pipe |
| CN109356888A (en) * | 2018-11-05 | 2019-02-19 | 中国船舶重工集团公司第七〇九研究所 | A kind of jet pump |
| CN111706579A (en) * | 2020-07-09 | 2020-09-25 | 上海交通大学 | Flow regulator suitable for regulating fluid flow velocity distribution at rear end of bent pipe |
| CN115060331A (en) * | 2022-04-13 | 2022-09-16 | 江苏商贸职业学院 | Flow sensor of hydraulic system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19847174A1 (en) * | 1997-10-13 | 1999-04-15 | Depla Bv | Connecting block especially for taking services through wall |
| US20090218000A1 (en) * | 2006-01-10 | 2009-09-03 | Endress + Hauser Flowtec Ag | Apparatus for Redirecting a Medium Flowing in a Pipeline |
| CN202001435U (en) * | 2011-04-28 | 2011-10-05 | 唐力南 | Current rectifier used for adjusting flow velocity distribution of bend pipe |
-
2011
- 2011-04-28 CN CN 201110108385 patent/CN102155477A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19847174A1 (en) * | 1997-10-13 | 1999-04-15 | Depla Bv | Connecting block especially for taking services through wall |
| US20090218000A1 (en) * | 2006-01-10 | 2009-09-03 | Endress + Hauser Flowtec Ag | Apparatus for Redirecting a Medium Flowing in a Pipeline |
| CN202001435U (en) * | 2011-04-28 | 2011-10-05 | 唐力南 | Current rectifier used for adjusting flow velocity distribution of bend pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099253A (en) * | 2018-10-15 | 2018-12-28 | 燕山大学 | A kind of shunt drag reduction bend pipe |
| CN109356888A (en) * | 2018-11-05 | 2019-02-19 | 中国船舶重工集团公司第七〇九研究所 | A kind of jet pump |
| CN109356888B (en) * | 2018-11-05 | 2023-09-15 | 中国船舶重工集团公司第七一九研究所 | Jet pump |
| CN111706579A (en) * | 2020-07-09 | 2020-09-25 | 上海交通大学 | Flow regulator suitable for regulating fluid flow velocity distribution at rear end of bent pipe |
| CN111706579B (en) * | 2020-07-09 | 2021-08-06 | 上海交通大学 | Flow regulator suitable for regulating fluid flow velocity distribution at rear end of bent pipe |
| CN115060331A (en) * | 2022-04-13 | 2022-09-16 | 江苏商贸职业学院 | Flow sensor of hydraulic system |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |