CN107489783B - A kind of noise elimination V-type ball valve with combined pore plate - Google Patents
A kind of noise elimination V-type ball valve with combined pore plate Download PDFInfo
- Publication number
- CN107489783B CN107489783B CN201710886671.6A CN201710886671A CN107489783B CN 107489783 B CN107489783 B CN 107489783B CN 201710886671 A CN201710886671 A CN 201710886671A CN 107489783 B CN107489783 B CN 107489783B
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- China
- Prior art keywords
- orifice plate
- valve
- noise elimination
- valve body
- spool
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Classifications
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
- F16K47/045—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member and the closure member being rotatable
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Sliding Valves (AREA)
- Check Valves (AREA)
Abstract
A kind of noise elimination V-type ball valve with combined pore plate, disk spring gland 4 passes through dish-shaped preloading spring 5 and compresses valve seat support ring 6, it is sealed between valve body 2 and valve seat support ring 6 by O-ring seal 9, valve rod 17 is rotated by spline 8 with movable valve plug 7, spool 7 contacts to form sealing surface with valve seat support ring 6, gland 12 and valve body 2 are pressed together by bolt and nut component 13, gland 12 is compressed filler 10 by packing sleeve 11, support frame 15 and valve body 2 are pressed together by bolt and nut component 14, filler gasket 16 is isolated by filler 10 with valve rod 17, 7 interior welds of spool have decompression orifice plate 19 and decompression orifice plate 20, soket head cap screw 18 tightens together noise elimination orifice plate 21 with valve body 2, pedestal gland 1 is fastened on valve body 2 by bolt and nut component 23 On, bottom is rotated around Spool rotating axis 22 when spool 7 works.
Description
Technical field
This patent is a kind of noise elimination V-type ball valve with combined pore plate, and product is mainly used in military project, chemical industry, aviation and boat
The fields such as it.
Background technique
With the development of science and technology, regulating valve type is more and more.V-type regulation ball valve is not only applied widely, and
And have the characteristics that compact-sized, regulating ratio is big and circulating resistance is small.But for the occasion of high flow rate and high pressure drop, often
It is excessive to advise pressure drop in V-type regulation ball valve use process, is easy the phenomenon that causing flow induced vibrations and strong noise.Domestic some sections
It grinds personnel's majority and has done some researchs for the sealing of V-type ball valve and filling-material structure, but cause for high flow rate medium
Deep discussion is not done in terms of flow induced vibrations, strong noise.L of the structure that 205136661 U of patent CN is provided to V-type ball valve
Type hard sealing structure has done in-depth study, but when spool is flowed through to fluid generate noise the problem of do not refer to.Patent
105003685 A of CN devises a kind of proportional V-shaped valve core, but makes an uproar for spool to what is generated in flow adjustment process
Sound does not also relate to study.For the technology careless omission that the above research occurs, this patent, which is directed in V-type regulation ball valve use process, to be drawn
The flow induced vibrations and strong noise phenomenon of hair have done further research.
Summary of the invention
The present invention mainly solves deficiency of the prior art, further researches and develops a kind of V-type of multilevel decompression noise reduction
Ball valve.
The present invention is a kind of noise elimination V-type ball valve with combined pore plate, including valve body (2), valve body (2) and disk spring gland
(4) it is tightened together with lock-screw (3), disk spring gland (4) passes through dish-shaped preloading spring (5) and compresses valve seat support ring
(6), the sealing performance being further ensured that between valve seat support ring (6) and spool (7), between valve body (2) and valve seat support ring (6)
It is sealed by O-ring seal (9), valve rod (17) is rotated by spline (8) band movable valve plug (7), spool (7) and valve seat support ring
(6) contact forms sealing surface, and gland (12) and valve body (2) are pressed together by bolt and nut component one (13), filler pressure
It covers (12) and is compressed filler (10) by packing sleeve (11), bolt and nut component two (14) is by support frame (15) and valve body (2)
It is pressed together, filler gasket (16) is isolated by filler (10) with valve rod (17), and spool (7) interior welds have level-one to be depressured orifice plate
(19) and second level decompression orifice plate (20), soket head cap screw (18) tighten together noise elimination orifice plate (21) with valve body (2), bolt
Pedestal gland (1) is fastened on valve body (2) by nut part three (23), and bottom is around Spool rotating axis (22) when spool (7) works
Rotation.
This patent has the following advantages compared with other prior arts: 1. two-stage reducing pressure by regulating flow orifice plates are embedded in valve core inside,
High Pressure Difference is decomposed into two-stage low voltage difference and carries out step pressure reducing, reduces the noise of fluid generation by compact overall structure.2. two-stage
Reducing pressure by regulating flow orifice plate can only have certain noise reduction effect to fluid under spool small guide vane, and restricting orifice loses under big aperture
To the noise reduction effect of fluid, the noise elimination orifice plate that this patent is installed after valve guarantees under any aperture, which has very well
Noise reduction capability.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention, and Fig. 2 is spool and orifice plate welding structure schematic diagram of the invention, Fig. 3
It is noise elimination orifice plate schematic diagram of the invention, Fig. 4 is valve base sealing partial structurtes enlarged drawing of the invention.Appended drawing reference and corresponding name
Referred to as: pedestal gland 1, valve body 2, lock-screw 3, disk spring gland 4, dish-shaped preloading spring 5, valve seat support ring 6, spool 7,
Spline 8, O-ring seal 9, filler 10, packing sleeve 11, gland 12, bolt and nut component 1, bolt auxiliary assembly two
14, support frame 15, filler gasket 16, valve rod 17, soket head cap screw 18, level-one decompression orifice plate 19, second level decompression orifice plate 20, noise elimination
Orifice plate 21, Spool rotating axis 22, bolt and nut component 3 23.
Specific embodiment:
As shown in Figure 1, porous noise elimination V-type ball valve of the invention, including valve body (2), valve body (2) and disk spring gland
(4) it is tightened together with lock-screw (3), disk spring gland (4) passes through dish-shaped preloading spring (5) and compresses valve seat support ring
(6), the sealing performance being further ensured that between valve seat support ring (6) and spool (7), between valve body (2) and valve seat support ring (6)
It is sealed by O-ring seal (9), valve rod (17) is rotated by spline (8) band movable valve plug (7), spool (7) and valve seat support ring
(6) contact forms sealing surface, and gland (12) and valve body (2) are pressed together by bolt and nut component one (13), filler pressure
It covers (12) and is compressed filler (10) by packing sleeve (11), bolt and nut component two (14) is by support frame (15) and valve body (2)
It is pressed together, filler gasket (16) is isolated by filler (10) with valve rod (17), and spool (7) interior welds have level-one to be depressured orifice plate
(19) and second level decompression orifice plate (20), soket head cap screw (18) tighten together noise elimination orifice plate (21) with valve body (2), bolt
Pedestal gland (1) is fastened on valve body (2) by nut part three (23), and bottom is around Spool rotating axis (22) when spool (7) works
Rotation.
As shown in Fig. 2, every layer of orifice plate design wall thickness is calculated by following formula:
In formula: tiFor the minimum thickness (i=1,2,3......) of i grades of reducing pressure by regulating flow orifice plates, Δ piFor optimization method calculating
I-stage pressure drop out, diFor i-stage reducing pressure by regulating flow orifice plate opening diameter, ρ is the density of fluid, ViFor the import before i grades of orifice plates
Flow velocity, Q are the uninterrupted of valve, [σ]tFor the allowable stress at a temperature of design of material, kiFor the number of aperture of i grades of restricting orifices
Amount, a are the length of rectangle reducing pressure by regulating flow orifice plate, and b is the width of rectangle reducing pressure by regulating flow orifice plate, and c is rectangle reducing pressure by regulating flow orifice plate
The size of confinement section, C1For the corrosion allowance of material.
And the through-hole of each orifice plate is interspersed.
As shown in Fig. 2, spacing is calculated by following formula between adjacent two pieces of restricting orifice grades:
In formula: SiThe spacing between adjacent two pieces of restricting orifice grades, Si' it is length of the fluid in jet core area, SiIt " is vertical
Directly in the critical jet interference distance of orifice plate, diFor i-stage reducing pressure by regulating flow orifice plate opening diameter, a1For turbulence factor, circle is opened
Hole a1=0.006, α are the half of jet diffusion angle, tan α=3.4a1, LiFor the spacing between adjacent apertures on i grades of orifice plates.
As shown in figure 3, the plate thickness of the noise elimination orifice plate is calculated by following formula:
In formula: δ is the design thickness of noise elimination orifice plate, and D is the diameter of noise elimination orifice plate, and v is the flow velocity of noise elimination orifice plate entrance, k
For the number of noise elimination orifice plate aperture, d is the size of noise elimination orifice plate opening diameter, and Δ P is the static pressure difference before and after noise elimination orifice plate, [σ]t
For the allowable stress of material under design temperature, α1Sound attenuation hole plate thickness correction factor, takes 0.2 caused by acting on for acoustic reactance.
As shown in figure 4, the valve seat support ring (6) and spool (7) are not kept in contact compression, but with spool (7)
Between there are the gap of 2mm or so, prevent valve seat support ring (6) from wearing spool (7) surface.
As shown in Figure 1, medium passes through 8 band of spline by flowing into spool housing, rotary valve rod 17, valve rod 17 on the left of valve body 2
Movable valve plug 7 rotates, and for spool 7 during unlatching, medium enters valve core inside from spool 7V type mouth, and spool 7 is in weight at this time
It rotates under power, medium power, the collective effect of back-up ring active force and acting force of the spring around Spool rotating axis 22, until spool
7 position is constant, and medium flows successively through two-stage reducing pressure by regulating flow orifice plate by through-hole, flows out outside valve after again passing through noise elimination orifice plate, often
A reducing pressure by regulating flow is carried out by level-one orifice plate, multilevel decompression, noise reduction process is completed, further completes noise reduction by noise elimination orifice plate
Process.
Claims (3)
1. a kind of noise elimination V-type ball valve with combined pore plate, including valve body (2), valve body (2) and disk spring gland (4) are used and are locked
Screw (3) tightens together, and disk spring gland (4) passes through dish-shaped preloading spring (5) and compresses valve seat support ring (6), further
Guarantee the sealing performance between valve seat support ring (6) and spool (7), by O-shaped sealing between valve body (2) and valve seat support ring (6)
Circle (9) is sealed, and valve rod (17) is rotated by spline (8) band movable valve plug (7), and spool (7) and valve seat support ring (6) contact shape
At sealing surface, gland (12) and valve body (2) are pressed together by bolt and nut component one (13), and gland (12) passes through
Packing sleeve (11) compresses filler (10), and support frame (15) and valve body (2) are pressed together by bolt and nut component two (14),
Filler gasket (16) is isolated by filler (10) with valve rod (17), and spool (7) interior welds have level-one to be depressured orifice plate (19) and two
Grade decompression orifice plate (20), soket head cap screw (18) tighten together noise elimination orifice plate (21) with valve body (2), bolt and nut component three
(23) pedestal gland (1) is fastened on valve body (2), bottom is rotated around Spool rotating axis (22) when spool (7) works, feature
Be: every grade of decompression orifice plate design wall thickness is calculated by following formula:
In formula: tiFor the minimum thickness (i=1,2,3......) of i grades of reducing pressure by regulating flow orifice plates, Δ piIt is calculated for optimization method
I-stage pressure drop, diFor i-stage reducing pressure by regulating flow orifice plate opening diameter, ρ is the density of fluid, ViFor the inlet velocity before i grades of orifice plates,
Q is the uninterrupted of valve, [σ]tFor the allowable stress at a temperature of design of material, kiFor the number of openings of i grades of restricting orifices, a is
The length of rectangle reducing pressure by regulating flow orifice plate, b are the width of rectangle reducing pressure by regulating flow orifice plate, and c is the confinement section of rectangle reducing pressure by regulating flow orifice plate
Size, C1Through-hole for the corrosion allowance of material, and each orifice plate is interspersed.
2. a kind of noise elimination V-type ball valve with combined pore plate according to claim 1, it is characterised in that: described adjacent two
Spacing is calculated by following formula between block restricting orifice grade:
In formula: SiThe spacing between adjacent two pieces of restricting orifice grades, Si' it is length of the fluid in jet core area, Si" for perpendicular to
The critical jet interference distance of orifice plate, diFor i-stage reducing pressure by regulating flow orifice plate opening diameter, a1For turbulence factor, for circular opening a1
=0.006, α are the half of jet diffusion angle, tan α=3.4a1, LiFor the spacing between adjacent apertures on i grades of orifice plates.
3. a kind of noise elimination V-type ball valve with combined pore plate according to claim 1, it is characterised in that: the sound attenuation hole
The plate thickness of plate is calculated by following formula:
In formula: δ is the design thickness of noise elimination orifice plate, and D is the diameter of noise elimination orifice plate, and v is the flow velocity of noise elimination orifice plate entrance, and k is to disappear
The number of acoustic aperture plate aperture, d are the size of noise elimination orifice plate opening diameter, and Δ P is the static pressure difference before and after noise elimination orifice plate, [σ]tTo set
The allowable stress of material, α at a temperature of meter1Sound attenuation hole plate thickness correction factor, takes 0.2 caused by acting on for acoustic reactance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710886671.6A CN107489783B (en) | 2017-09-22 | 2017-09-22 | A kind of noise elimination V-type ball valve with combined pore plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710886671.6A CN107489783B (en) | 2017-09-22 | 2017-09-22 | A kind of noise elimination V-type ball valve with combined pore plate |
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| Publication Number | Publication Date |
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| CN107489783A CN107489783A (en) | 2017-12-19 |
| CN107489783B true CN107489783B (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710886671.6A Active CN107489783B (en) | 2017-09-22 | 2017-09-22 | A kind of noise elimination V-type ball valve with combined pore plate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662185A (en) * | 2018-05-24 | 2018-10-16 | 江苏天域阀业制造有限公司 | A kind of valve with cushioning effect |
| CN109058504B (en) * | 2018-10-11 | 2020-06-02 | 特宏阀门有限公司 | V-shaped ball valve for regulating flow by buffering medium |
| CN109751432B (en) * | 2019-02-22 | 2023-07-04 | 凯瑞特阀业集团有限公司 | Flow control valve |
| CN110454586A (en) * | 2019-09-11 | 2019-11-15 | 浙江联大阀门有限公司 | Wear-resisting regulation ball valve |
| CN112081944A (en) * | 2020-09-25 | 2020-12-15 | 浙江联大阀门有限公司 | Right-angle type regulating ball valve |
| CN113266624A (en) * | 2021-05-17 | 2021-08-17 | 南京航空航天大学 | Rotary valve for high-frequency pulse air pressure modulation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992115U (en) * | 2011-03-31 | 2011-09-28 | 浙江力诺阀门有限公司 | Cavitation-preventive noise reduction type V-shaped ball valve |
| CN202432002U (en) * | 2011-11-14 | 2012-09-12 | 大连亨利测控仪表工程有限公司 | High-pressure difference V-shaped regulating ball valve |
| CN104214416A (en) * | 2014-10-09 | 2014-12-17 | 兰州理工大学 | Optimized design method of multistage depressurization sleeve |
| KR101545811B1 (en) * | 2014-03-25 | 2015-08-24 | 안효득 | Control valve for whirlpool prevention |
| CN206398122U (en) * | 2017-01-05 | 2017-08-11 | 浙江锐步流体控制设备有限公司 | A kind of new multistage noise reduction V-type ball valve |
-
2017
- 2017-09-22 CN CN201710886671.6A patent/CN107489783B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201992115U (en) * | 2011-03-31 | 2011-09-28 | 浙江力诺阀门有限公司 | Cavitation-preventive noise reduction type V-shaped ball valve |
| CN202432002U (en) * | 2011-11-14 | 2012-09-12 | 大连亨利测控仪表工程有限公司 | High-pressure difference V-shaped regulating ball valve |
| KR101545811B1 (en) * | 2014-03-25 | 2015-08-24 | 안효득 | Control valve for whirlpool prevention |
| CN104214416A (en) * | 2014-10-09 | 2014-12-17 | 兰州理工大学 | Optimized design method of multistage depressurization sleeve |
| CN206398122U (en) * | 2017-01-05 | 2017-08-11 | 浙江锐步流体控制设备有限公司 | A kind of new multistage noise reduction V-type ball valve |
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| CN107489783A (en) | 2017-12-19 |
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