CN206973035U - A kind of ball valve for eliminating cavitation erosion - Google Patents
A kind of ball valve for eliminating cavitation erosion Download PDFInfo
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- CN206973035U CN206973035U CN201720459099.0U CN201720459099U CN206973035U CN 206973035 U CN206973035 U CN 206973035U CN 201720459099 U CN201720459099 U CN 201720459099U CN 206973035 U CN206973035 U CN 206973035U
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- valve
- ball valve
- cavitation erosion
- sphere
- spheroid
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- 230000003628 erosive effect Effects 0.000 title claims abstract description 43
- 238000009826 distribution Methods 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 36
- 230000006378 damage Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model provides a kind of ball valve for eliminating cavitation erosion, is related to pipe control valve field, and the infringement of valve internals is caused for solving the problems, such as existing ball valve due to cavitation.The ball valve for eliminating cavitation erosion includes the first valve body, the second valve body, valve rod, spheroid, valve seat, spring and fixing axle, in addition to the sphere wallboard with through hole, the sphere wallboard are partially covered in the outlet flow of the spheroid.The ball valve for eliminating cavitation erosion can effectively eliminate cavitation erosion in small guide vane, and can meet valve bigger traffic requirement during cavitation unobvious in big aperture, and simple in construction, be easy to process, beneficial to assembling, have the characteristics of efficient energy-saving.
Description
Technical field
Pipe control valve field is the utility model is related to, particularly relates to a kind of ball valve for eliminating cavitation erosion.
Background technology
Ball valve is due to fluid resistance is small, negotiability is big, switch rapid, good seal performance, long lifespan, is easy to gas control
And the advantages that automatically controlled, it is widely used in the industries such as coal chemical industry, petrochemical industry, steel, metallurgy and space division.
However, ball valve has the characteristics of negotiability is big, switch is rapid, especially during valve opening and closing, valve both sides
Pressure differential it is larger when, fluid media (medium) flow velocity can be very high, it is easy to cavitation occurs, when fluid media (medium) is led to very high speed
When crossing ball valve runner, due to fluid liquid pressure reduction and bubbing produces bubble, the pressure that bubble is born reaches certain
During value, part will occur and burst, cause the infringement of valve internals.
Utility model content
The infringement of valve internals is caused to solve the problems, such as existing ball valve due to cavitation, the utility model provides one
Kind eliminates the ball valve of cavitation erosion, can not only prevent from cavitating, and eliminates noise and vibration, while reduces the energy expenditure of valve, changes
It has been apt to the working environment of operating personnel, cavitation erosion can be effectively eliminated in small guide vane, and in big aperture during cavitation unobvious
The bigger traffic requirement of valve can be met, and it is simple in construction, it is easy to process, beneficial to assembling, there is the characteristics of efficient energy-saving.
A kind of ball valve for eliminating cavitation erosion provided by the utility model, including the first valve body, the second valve body, valve rod, ball
Body, valve seat, spring and fixing axle, in addition to the sphere wallboard with through hole, the sphere wallboard are partially covered on the spheroid
Outlet flow on.
In one specific embodiment of the utility model, the diameter of the sphere wallboard and the sphere diameter phase
Together, the sphere wallboard is integrally formed with spheroid.
In one specific embodiment of the utility model, the sphere wallboard is in the outlet flow of the spheroid
One lateral edges are arc, and the arc-shaped projection is a circular arc on side view, and its center of circle is on the ball valve runner central axis.
In one specific embodiment of the utility model, the arc-shaped projection is a circular arc on side view, and it half
Footpath is f, and f is 5~15mm, and its center of circle and the distance of the centre of sphere of the spheroid 4 are g, and g is 5~15mm.
In one specific embodiment of the utility model, the thickness of the sphere wallboard is 10~20mm.
In one specific embodiment of the utility model, the through hole is manhole.
In one specific embodiment of the utility model, a diameter of 2~10mm of the manhole.
In one specific embodiment of the utility model, c row d row regular distributions are provided with the sphere wallboard
Through hole.
In one specific embodiment of the utility model, 2≤c≤10,2≤d≤10.
In one specific embodiment of the utility model, the central axis of the through hole converges at going out for the spheroid
Specified point on mouth runner center line.
In one specific embodiment of the utility model, the distance of the specified point and the centre of sphere of the spheroid is e,
E is 5~15mm.
Above-mentioned technical proposal of the present utility model has the beneficial effect that：
In such scheme, new sphere structure design is employed, part is covered with through hole at spheroid outlet flow
Sphere wallboard, designed by the quantity of through hole, distribution, shape, size, flow direction etc., the resistance of fluid media (medium) is increased, to high pressure
Difference carries out decompression throttling, adds the friction loss of fluid media (medium), reduces flow velocity of the fluid media (medium) by valve, passes through through hole
The gas bubbles that the turbulent flow that the fluid mutually hit afterwards is formed promotes to separate out in fluid media (medium) are away from metallic element surface
Rupture, so as to reduce the destruction to valve internals to greatest extent, can effectively suppress the generation of cavitation erosion, and help to reduce
Noise level caused by fluid and oscillation intensity, the energy expenditure of valve is reduced, improve the working environment of operating personnel.Ball
The outlet flow unmasked portion of body is an arc, can effectively eliminate cavitation erosion in small guide vane, and the cavitation in big aperture
Valve bigger traffic requirement can be met during unobvious, while have simple in construction, be easy to process, beneficial to assembling, efficient energy-saving
The characteristics of.
In preferred embodiments, new sphere structure design is employed, part is by straight with spheroid at spheroid outlet flow
Footpath is identical and with the covering of certain thickness sphere wallboard, and the thickness of sphere wallboard is 10~20mm, is distributed with sphere wallboard
Through hole, through hole are shaped as circle, and a diameter of 2~10mm, through hole is regular distribution, share c rows d row, the central axis of through hole
A bit on the runner center line of spheroid is converged at, the distance with the centre of sphere is e, and e is 5~15mm.The wallboard of land portions covering
On through hole fluid media (medium) is dispersed into multi beam fluid, while the central axis of through hole is not parallel, and fluid passes through after through hole mutually
The turbulent flow that the fluid of shock is formed, buffering area and pressure recovery region are formed, in collapsing away from metallic element surface gassing
To burst, avoid when fluid media (medium) passes through valve under High Pressure Difference operating mode, flow velocity is too fast, causes pressure to reduce, liquid bubbing,
The gas of precipitation forms bubble, is burst when the pressure that bubble is born reaches certain value on valve internals surface, so as to maximum limit
Reduce the destruction to valve internals in degree ground.The outlet flow unmasked portion of spheroid is an arc, and arc-shaped projection is on side view
For a circular arc, its center of circle is on the ball valve runner central axis.Its radius is f, and f is 5~15mm, its center of circle and the spheroid
The distance of 4 centre of sphere is g, and g is 5~15mm.Cavitation erosion can be effectively eliminated in ball valve small guide vane, and is cavitated in the big aperture of ball valve
Valve bigger traffic requirement can be met during phenomenon unobvious.
Brief description of the drawings
Fig. 1 is cross-sectional view before a kind of full-gear for eliminating the ball valve to cavitate of the present utility model；
Fig. 2 is cross-sectional view in a kind of full-gear of ball valve for eliminating cavitation erosion of the present utility model；
Fig. 3 is cross-sectional view before a kind of full off state for eliminating the ball valve to cavitate of the present utility model；
Fig. 4 is cross-sectional view on a kind of full off state of ball valve for eliminating cavitation erosion of the present utility model；
Fig. 5 is cross-sectional view on a kind of on off state of ball valve for eliminating cavitation erosion of the present utility model.
[description of reference numerals]
1st, the first valve body；
2nd, the second valve body；
3rd, valve rod；
4th, spheroid；
5th, valve seat；
6th, spring；
7th, fixing axle；
8th, through hole；
9th, sphere wallboard.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
Fig. 1 is cross-sectional view before a kind of full-gear for eliminating the ball valve to cavitate of the present utility model, and Fig. 2 is this
Cross-sectional view in a kind of full-gear of the ball valve of elimination cavitation erosion of utility model, Fig. 3 is one kind of the present utility model
Cross-sectional view before the full off state of the ball valve of elimination cavitation erosion, Fig. 4 are a kind of ball valve for eliminating cavitation erosion of the present utility model
Full off state on cross-sectional view, Fig. 5 be it is of the present utility model it is a kind of eliminate cavitation erosion ball valve on off state on cut open
Face structural representation.As shown in Fig. 1 to Fig. 5, it is provided by the utility model eliminate cavitation erosion ball valve include the first valve body 1,
Second valve body 2, valve rod 3, spheroid 4, valve seat 5, spring 6 and fixing axle 7, in addition to the sphere wallboard 9 with through hole 8, it is described
Sphere wallboard 9 is partially covered in the outlet flow of the spheroid 4.
In one alternate embodiment, as shown in Fig. 2 or Fig. 4 or Fig. 5, the diameter of the sphere wallboard 9 and the spheroid 4
Diameter is identical, and the sphere wallboard 9 is integrally formed with spheroid 4, is easy to processing and installation.
In one alternate embodiment, as shown in figure 3, the sphere wallboard 9 in the outlet flow of the spheroid 4 one
Lateral edges are arc, and the arc-shaped projection is a circular arc on side view, its center of circle on the ball valve runner central axis, its
Radius is f, and its center of circle and the distance of the centre of sphere of the spheroid 4 are g.Preferably, the radius f values of arc are 5~15mm, arc
The distance g values of the centre of sphere of the center of circle and spheroid 4 be 5~15mm.This design can effectively eliminate cavitation erosion in small guide vane, and
Valve bigger traffic requirement can be met during big aperture during cavitation unobvious, and under full-gear, do not interfere with fluid
The normal circulation of through hole medium.
In one alternate embodiment, the thickness of sphere wallboard 9 is 10~20mm.
In one alternate embodiment, through hole 8 is manhole.Preferably, a diameter of the 2 of the manhole~
10mm。
In one alternate embodiment, such as shown in Fig. 3, the through hole of c row d row regular distributions is provided with sphere wallboard 9.
Preferably, 2≤c≤10,2≤d≤10.
In one alternate embodiment, the central axis of through hole 8 converges at specifying on the outlet flow center line of spheroid 4
Point.
Preferably, as shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, the ball of the specified point and spheroid 4 of the convergence of the central axis of through hole 8
The distance of the heart is e, and e is 5~15mm.
The ball valve provided by the utility model for eliminating cavitation erosion, its structure are included by 2 groups of the first valve body 1 and the second valve body
Into valve body, in valve body, the supporting sephere 4 of fixing axle 7, spheroid 4 and two valve seats 5 form ball face sealings, the spring that spring 6 provides
Valve seat 5 is pressed to spheroid 4 by power, realizes the sealing of spheroid 4 and valve seat 5, and valve rod 3 drives spheroid 4 to rotate and completes switch motion.In valve
In door opening-closing process, when the pressure differential of valve both sides is larger, fluid media (medium) flow velocity can be very high, it is easy to cavitation occurs, when
Fluid media (medium) with very high speed by ball valve runner when, due to fluid liquid pressure reduction and bubbing produce bubble,
It when the pressure that bubble is born reaches certain value, will explode, cause the infringement of valve internals.Bubble explosion time, in part
Very high pressure and shock wave can be produced, and the place away from explosion center, pressure can sharp-decays.And caused by bubble blast
Shock wave is a principal element for causing cavitation erosion, noise and vibration.Therefore preventing the effective measures of cavitation erosion prevents bubble
Produce and avoid bubble to cause the infringement to valve internals in valve internals surface explosion.Part is covered at the outlet flow of spheroid 4
Through hole 8 is designed with the sphere wallboard of lid, through hole 8 is shaped as circle, and the central axis of through hole 8 converges at the runner of spheroid 4
On center line a bit, the distance with the centre of sphere is e.Fluid media (medium) is divided into multi beam fluid by the through hole 8 on sphere wallboard, is led to simultaneously
The central axis in hole 8 is not parallel, the turbulent flow that fluid is formed by the fluid mutually hit after through hole 8, forms buffering area and pressure
Recovery district, in the collapse away from metallic element surface gassing, so as to reduce the destruction to valve internals to greatest extent.
The generation of cavitation erosion can effectively be suppressed, and noise level and oscillation intensity caused by helping to reduce fluid, reduce the energy of valve
Amount consumption, improve the working environment of operating personnel.
As shown in figure 4, the ball valve for eliminating cavitation erosion spheroid 4 and the formation ball face sealing of valve seat 5, realizes under full off state
The cutting function of ball valve fluid medium.
The ball valve of cavitation erosion is eliminated in High Pressure Difference power condition switch, the resistance of fluid media (medium) is increased, adds fluid media (medium)
Friction loss, reduce flow velocity of the fluid media (medium) by valve, the turbulent flow formed by the fluid that is mutually hit after through hole 8 promotees
The gas bubbles for making to separate out in fluid media (medium) rupture at remote metallic element surface, so as to reduction pair to greatest extent
The destruction of valve internals, can effectively suppress the generation of cavitation erosion, and help to reduce noise and vibration caused by fluid.Spheroid goes out
Mouth runner unmasked portion is an arc, and cavitation erosion can be effectively eliminated in ball valve small guide vane, and it is existing to be cavitated in the big aperture of ball valve
Valve bigger traffic requirement can be met during as unobvious.
The ball valve provided by the utility model for eliminating cavitation erosion employs new sphere structure design, at spheroid outlet flow
Sphere wallboard of the part covering with through hole, is designed by the quantity of through hole, distribution, shape, size, flow direction etc., increases stream
The resistance of body medium, decompression throttling is carried out to High Pressure Difference, adds the friction loss of fluid media (medium), fluid media (medium) is reduced and passes through
The flow velocity of valve, the gas bubbles that the turbulent flow formed by the fluid mutually hit after through hole promotes to separate out in fluid media (medium) are remote
From rupturing at metallic element surface, so as to reduce the destruction to valve internals to greatest extent, can effectively suppress to cavitate
Generation, and contribute to reduce fluid caused by noise level and oscillation intensity, reduce the energy expenditure of valve, improve behaviour
Make the working environment of personnel.The outlet flow unmasked portion of spheroid is an arc, and cavitation erosion can be effectively eliminated in small guide vane, and
Valve bigger traffic requirement can be met during cavitation unobvious in big aperture, while have simple in construction, be easy to process,
Beneficial to assembling, the characteristics of efficient energy-saving.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (11)
1. a kind of ball valve for eliminating cavitation erosion, including the first valve body (1), the second valve body (2), valve rod (3), spheroid (4), valve seat
(5), spring (6) and fixing axle (7), it is characterised in that also include the sphere wallboard (9) with through hole (8), the sphere wallboard
(9) it is partially covered in the outlet flow of the spheroid (4).
2. the as claimed in claim 1 ball valve for eliminating cavitation erosion, it is characterised in that the diameter of the sphere wallboard (9) with it is described
Spheroid (4) diameter is identical, and the sphere wallboard (9) is integrally formed with spheroid (4).
3. the ball valve as claimed in claim 2 for eliminating cavitation erosion, it is characterised in that the sphere wallboard (9) is in the spheroid (4)
Outlet flow on a lateral edges be arc, the arc-shaped projection is a circular arc on side view, and its center of circle is in the ball valve
On runner central axis.
4. the ball valve as claimed in claim 3 for eliminating cavitation erosion, it is characterised in that the arc-shaped projection is a circle on side view
Arc, its radius are f, and f is 5~15mm；Its center of circle and the distance of the centre of sphere of the spheroid (4) are g, and g is 5~15mm.
5. the as claimed in claim 1 ball valve for eliminating cavitation erosion, it is characterised in that the thickness of the sphere wallboard (9) is 10~
20mm。
6. the ball valve as claimed in claim 1 for eliminating cavitation erosion, it is characterised in that the through hole (8) is manhole.
7. the ball valve as claimed in claim 6 for eliminating cavitation erosion, it is characterised in that a diameter of 2~10mm of the manhole.
8. the ball valve as claimed in claim 6 for eliminating cavitation erosion, it is characterised in that be provided with c rows d on the sphere wallboard (9)
The through hole (8) of row regular distribution.
9. the ball valve as claimed in claim 8 for eliminating cavitation erosion, it is characterised in that 2≤c≤10,2≤d≤10.
10. the ball valve as claimed in claim 8 for eliminating cavitation erosion, it is characterised in that the central axis of the through hole (8) converges at
Specified point on the outlet flow center line of the spheroid (4).
11. the ball valve as claimed in claim 10 for eliminating cavitation erosion, it is characterised in that the specified point and the spheroid (4)
The distance of the centre of sphere is e, and e is 5~15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459099.0U CN206973035U (en) | 2017-04-27 | 2017-04-27 | A kind of ball valve for eliminating cavitation erosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459099.0U CN206973035U (en) | 2017-04-27 | 2017-04-27 | A kind of ball valve for eliminating cavitation erosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973035U true CN206973035U (en) | 2018-02-06 |
Family
ID=61413545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720459099.0U Active CN206973035U (en) | 2017-04-27 | 2017-04-27 | A kind of ball valve for eliminating cavitation erosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206973035U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120472A (en) * | 2017-04-27 | 2017-09-01 | 航天长征化学工程股份有限公司 | Ball valve for eliminating cavitation |
| CN108361407A (en) * | 2018-04-11 | 2018-08-03 | 哈电集团哈尔滨电站阀门有限公司 | A kind of ball valve core of regulating flow quantity |
| RU2785978C1 (en) * | 2022-04-12 | 2022-12-15 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" | Control valve |
-
2017
- 2017-04-27 CN CN201720459099.0U patent/CN206973035U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120472A (en) * | 2017-04-27 | 2017-09-01 | 航天长征化学工程股份有限公司 | Ball valve for eliminating cavitation |
| CN108361407A (en) * | 2018-04-11 | 2018-08-03 | 哈电集团哈尔滨电站阀门有限公司 | A kind of ball valve core of regulating flow quantity |
| RU2785978C1 (en) * | 2022-04-12 | 2022-12-15 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" | Control valve |
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