CN202001435U - Current rectifier used for adjusting flow velocity distribution of bend pipe - Google Patents
Current rectifier used for adjusting flow velocity distribution of bend pipe Download PDFInfo
- Publication number
- CN202001435U CN202001435U CN201120130481XU CN201120130481U CN202001435U CN 202001435 U CN202001435 U CN 202001435U CN 201120130481X U CN201120130481X U CN 201120130481XU CN 201120130481 U CN201120130481 U CN 201120130481U CN 202001435 U CN202001435 U CN 202001435U
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- Prior art keywords
- bend pipe
- flow velocity
- current rectifier
- velocity distribution
- flow
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- 230000000694 effects Effects 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The utility model relates to a current rectifier, in particular to a current rectifier used for adjusting the flow velocity distribution of a bend pipe. The current rectifier used for adjusting flow velocity distribution of the bend pipe comprises a circular plate and holes arranged along the radial direction of the circular plate and is characterized in that the distribution of the holes adopts a dissymmetric type, that is, the diameter of the hole near the outer side of the matched bend pipe is less than that of the hole near the inner side of the matched bend pipe. The current rectifier used for adjusting the flow velocity distribution of the bend pipe has a unique structure, eliminates eccentric impact to the greatest extent and reduces the effect on service life of other chocking parts following closely, such as a valve.
Description
Technical field
The utility model relates to a kind of flow conditioner, especially relates 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 purpose of this utility model 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 utility model is realized 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 utility model 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 such as asymmetric reverse anchor ring method such as grade that the utility model provides 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: the rectifier that the utility model provides 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 utility model.
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 |
|---|---|---|---|
| CN201120130481XU CN202001435U (en) | 2011-04-28 | 2011-04-28 | Current rectifier used for adjusting flow velocity distribution of bend pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120130481XU CN202001435U (en) | 2011-04-28 | 2011-04-28 | Current rectifier used for adjusting flow velocity distribution of bend pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001435U true CN202001435U (en) | 2011-10-05 |
Family
ID=44704178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120130481XU Expired - Fee Related CN202001435U (en) | 2011-04-28 | 2011-04-28 | Current rectifier used for adjusting flow velocity distribution of bend pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155477A (en) * | 2011-04-28 | 2011-08-17 | 唐力南 | Rectifier for regulating velocity distribution of elbow pipe |
-
2011
- 2011-04-28 CN CN201120130481XU patent/CN202001435U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155477A (en) * | 2011-04-28 | 2011-08-17 | 唐力南 | Rectifier for regulating velocity distribution of elbow pipe |
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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: YINCHUAN RONGSHENWEI AUTOMATION INSTRUMENT FACTORY Free format text: FORMER OWNER: TANG LINAN Effective date: 20150402 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150402 Address after: Dexiang Yinchuan Road, Desheng Industrial Park No. 21 the Ningxia Hui Autonomous Region 750200 Patentee after: Yinchuan Rongshenwei Automation Instrument Factory (Co., Ltd.) Address before: Dexiang Yinchuan Road, Desheng Industrial Park No. 21 the Ningxia Hui Autonomous Region 750200 Patentee before: Tang Linan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20170428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |