CN205978571U - Ball valve that gas -tight loses - Google Patents
Ball valve that gas -tight loses Download PDFInfo
- Publication number
- CN205978571U CN205978571U CN201620890347.2U CN201620890347U CN205978571U CN 205978571 U CN205978571 U CN 205978571U CN 201620890347 U CN201620890347 U CN 201620890347U CN 205978571 U CN205978571 U CN 205978571U
- Authority
- CN
- China
- Prior art keywords
- wallboard
- valve
- sphere
- ball valve
- spheroid
- Prior art date
- 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.)
- Withdrawn - After Issue
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- 230000003628 erosive effect Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 35
- 230000006378 damage Effects 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 230000001629 suppression Effects 0.000 description 9
- 238000011084 recovery Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
The utility model discloses a pipeline control valve, especially a ball valve that gas -tight loses, including first valve body portion, second valve body portion, valve rod, spheroid, disk seat, spring and fixed axle, spheroidal runner mouth covers there is the sphere wallboard, be equipped with the wallboard through -hole on the sphere wallboard. The utility model provides a ball valve that gas -tight loses can effective production that restraines the cavitation erosion, can disappear simultaneously denoising sound and vibration have reduced the energy consumption of valve, have improved operating personnel's operational environment, simple structure moreover, and the handling ease does benefit to the assembly, has energy -conserving efficient characteristics.
Description
Technical field
This utility model is related to a kind of pipe control valve, particularly a kind of ball valve of cavitation-preventive.
Background technology
Ball valve is due to having that fluid resistance is little, negotiability big, switch is rapid, good seal performance, life-span length, be easy to gas control
And automatically controlled the advantages of, be widely used in the industries such as Coal Chemical Industry, petrochemical industry, iron and steel, metallurgy and space division.
However, ball valve has, negotiability is big, switch rapid feature, especially during valve opening and closing, valve both sides
Pressure differential larger when, fluid media (medium) flow velocity can very high it is easy to occur cavitation, when fluid media (medium) with very high speed lead to
When crossing ball valve runner, due to the reduction of fluid liquid pressure, bubbing produces bubble, and the pressure that bubble bears reaches necessarily
During value, local will be occurred to burst, cause the infringement of valve internals.Bubble explosion time, local can produce very high pressure and
Shock wave, and the shock wave that bubble blast produces can cause cavitation erosion, noise and vibration.
Utility model content
In order to overcome the defect of prior art, the purpose of this utility model is to propose a kind of ball valve of cavitation-preventive, passes through
Sphere wallboard is set at spheroid runner, through hole is provided with sphere wallboard, increase resistance and the friction loss of fluid media (medium), fall
The flow velocity by valve for the low fluid media (medium), the turbulent flow that the fluid that medium is mutually clashed into after through hole is formed promotes in fluid media (medium)
Separate out gas bubbles rupture at away from metallic element surface, it is to avoid bubble in valve internals surface explosion, to subtract
Few destruction to valve internals, the generation of suppression cavitation erosion, and contribute to reducing the noise and vibration that fluid produces；Meanwhile, in ball
Valve is under half-open position, counteracts the out-of-balance force of spheroid and valve seat by the contact with valve seat for the sphere wallboard, decreases valve
Seat and the abrasion of spheroid, extend the service life of valve.
For reaching this purpose, this utility model provides following technical scheme：
This utility model provide a kind of cavitation-preventive ball valve, including the first valve body, the second valve body, valve rod, spheroid,
Valve seat, spring and fixing axle, the runner mouth of described spheroid is coated with sphere wallboard；Described sphere wallboard is provided with wallboard through hole.
By being provided with the sphere wallboard of through hole at spheroid runner mouth, increase the resistance of fluid media (medium) and friction is damaged
Lose, reduce the flow velocity by valve for the fluid media (medium), the turbulent flow that the fluid mutually being clashed into after through hole is formed promotes fluid to be situated between
The gas bubbles separating out in matter rupture at away from metallic element surface, decrease the destruction to valve internals, suppression
The generation of cavitation erosion, and contribute to reducing the noise and vibration that fluid produces；In addition, under ball valve is in half-open position, by ball
The contact that plate is with valve seat of facing the wall and meditating counteracts the out-of-balance force of spheroid and valve seat, decreases the abrasion of valve seat and spheroid, extends valve
The service life of door.
In a specific technical scheme, described sphere wallboard is located at the runner exit of described spheroid.
In another specific technical scheme, described sphere wallboard is the diameter identical arc of its diameter and described spheroid
Face type, and the outside cambered surface of described sphere wallboard is in same sphere with described outer surface of spheroid.
In another specific technical scheme, described wallboard through hole has multiple, the central shaft of multiple described wallboard through holes
Not parallel between line.
In another specific technical scheme, the central axis of multiple described wallboard through holes converges at a bit, this point with
The distance of the centre of sphere is e, 5mm≤e≤15mm.Contribute to medium and flow through dispersion shunting after described wallboard through hole.
In another specific technical scheme, the point that the central axis of multiple described wallboard through holes converges is located at described ball
On the runner centrage of body.
In another specific technical scheme, the point that the central axis of multiple described wallboard through holes converges is located at described ball
In the runner of body.
In another specific technical scheme, described sphere wall panel thickness is a, 10mm≤a≤20mm.
In another specific technical scheme, described wallboard shape of through holes is circle, a diameter of b, 2mm≤b≤10mm.
In another specific technical scheme, described wallboard through hole is uniformly distributed and arranges for c row d, 2≤c≤10, and 2≤d≤
10.
The beneficial effects of the utility model are：
A kind of ball valve of cavitation-preventive that this utility model provides, due to passing through to arrange sphere wallboard at spheroid runner, and
Sphere wallboard is provided with through hole.Thus having advantages below：
1. increase resistance and the friction loss of fluid media (medium), reduce the flow velocity by valve for the fluid media (medium), medium leads to
It is dispersed into multi beam fluid, the fluid mutually clashing into forms turbulent flow, and forms relief area and pressure after crossing the through hole on sphere wallboard
Power recovery district, turbulent flow promotes the gas bubbles separating out in fluid media (medium) to rupture at away from metallic element surface, it is to avoid
Bubble, in valve internals surface explosion, decreases the destruction to valve internals, the generation of suppression cavitation erosion；
2. enable the effect reduced pressure and throttle, solve high noisy when valve works under High Pressure Difference operating mode and strong vibration
Problem, also reduces the energy expenditure of valve, improves the working environment of operator；
3. the injustice of spheroid and valve seat under ball valve is in half-open position, is counteracted by the contact with valve seat for the sphere wallboard
Weighing apparatus power, eliminate the additional moment that ball valve produces during stroke, it is to avoid leads to executor excessive because of additional moment,
And the abrasion of the valve seat that causes and spheroid, extend the service life of valve.
Brief description
A kind of front cross-section structure of the ball valve full-gear of cavitation-preventive that Fig. 1 provides for this utility model embodiment is illustrated
Figure；
A kind of upper cross-section structure of the ball valve full-gear of cavitation-preventive that Fig. 2 provides for this utility model embodiment is illustrated
Figure；
A kind of front cross-section structure of the ball valve full off state of cavitation-preventive that Fig. 3 provides for this utility model embodiment is illustrated
Figure；
A kind of upper cross-section structure of the ball valve full off state of cavitation-preventive that Fig. 4 provides for this utility model embodiment is illustrated
Figure.
In figure：
1st, the first valve body；2nd, the second valve body；3rd, valve rod；4th, spheroid；4-1, wallboard through hole；5th, valve seat；6th, spring；7、
Fixing axle.
Specific embodiment
Below in conjunction with this utility model embodiment and accompanying drawing, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
Embodiment 1
Present embodiments provide a kind of ball valve of cavitation-preventive, as Figure 1-4, including：By the first valve body 1 and the second valve
The valve body of body 2 composition, and valve rod 3, spheroid 4, valve seat 5, spring 6, fixing axle 7, in valve body, fixing axle 7 supporting sephere 4,
Spheroid 4 and two valve seats 5 form ball face sealing, and valve seat 5 is pressed to spheroid 4 by the spring force that spring 6 provides, and realizes spheroid 4 and valve
The sealing of seat 5, valve rod 3 drives spheroid 4 to rotate and completes to control aperture action.
The exit of the runner mouth of spheroid 4 is covered by sphere wallboard, and sphere wallboard is the diameter phase of its diameter and spheroid 4
With cabochon and thickness is 15mm, the outside cambered surface of sphere wallboard and the outer surface of spheroid 4 are in same sphere, sphere wallboard
It is fixedly connected with the entity part of spheroid 4, its connected mode can adopt integrally connected, welding etc..Sphere wallboard is provided with simultaneously
So that ball valve is in full-gear, fluid media (medium) can normally circulate wallboard through hole 4-1, and wallboard through hole 4-1 is circular straight-through
Hole, its a diameter of 6mm, and be evenly distributed on sphere wallboard with the spread pattern of 6 row 6 row.In multiple wallboard through hole 4-1
Heart axis is not parallel, and its center axis converge at a bit, and this point is 10mm, multiple wallboard through hole 4-1 simultaneously with the distance of the centre of sphere
Central axis converge point be located at spheroid 4 runner in and on the runner centrage of spheroid 4, contribute to medium and flow through wallboard
Dispersion shunting after through hole 4-1, and it is divided into multi beam fluid when such medium flows through wallboard through hole 4-1, the fluid mutually clashing into
Form turbulent flow, and form relief area and pressure recovery region, in the bubble collapse occurring away from metallic element surface, thus maximum
Limit ground reduces the destruction to valve internals, the effectively generation of suppression cavitation erosion.
With reference to the ball valve of the cavitation-preventive in the present embodiment, describe in detail using this ball valve standard-sized sheet, fully closed and half-open
When the running status of the ball valve and flow process of medium.
During the ball valve standard-sized sheet of cavitation-preventive that the present embodiment provides, as depicted in figs. 1 and 2, valve rod 3 drives spheroid 4 to be in entirely
Open position is so that the media outlet of the runner of spheroid 4 and the valve body being made up of the first valve body 1 and the second valve body 2 and medium
Entrance connects completely, medium entered by medium inlet be divided into after the wallboard through hole 4-1 on sphere wallboard after the runner of spheroid 4 many
Beam fluid, the fluid mutually clashing into forms turbulent flow, and forms relief area and pressure recovery region, is sending out away from metallic element surface
Raw bubble collapse, thus reducing the destruction to valve internals to greatest extent, the generation of effectively suppression cavitation erosion, slows down Jie simultaneously
Mass flow speed, reduces the noise and vibration that fluid produces.
When the ball valve of the cavitation-preventive that the present embodiment provides is fully closed, as shown in Figure 3 and Figure 4, valve rod 3 drives spheroid 4 to be in pass
Closed position, spheroid 4 forms ball face sealing with valve seat 5, and medium cannot circulate, and ball valve is closed it is achieved that the cut-out to medium for the ball valve
Function.
When the ball valve of the cavitation-preventive that the present embodiment provides is half-open, valve rod 3 drives spheroid 4 to be in half-open position, sphere wallboard
Contact with valve seat 5, counteract the out-of-balance force of spheroid 4 and valve seat 5, eliminate the additional force that ball valve produces during stroke
Square；Medium is divided into multi beam fluid after the wallboard through hole 4-1 on sphere wallboard after entering the runner of spheroid 4, the stream mutually clashing into
Body forms turbulent flow, and forms relief area and pressure recovery region, in the bubble collapse occurring away from metallic element surface, thus
Limits ground reduces the destruction to valve internals, the effectively generation of suppression cavitation erosion, slows down velocity of medium simultaneously, reduces fluid and produces
Noise and vibration.
Embodiment 2
Present embodiments provide a kind of ball valve of cavitation-preventive, as Figure 1-4, including：By the first valve body 1 and the second valve
The valve body of body 2 composition, and valve rod 3, spheroid 4, valve seat 5, spring 6, fixing axle 7, in valve body, fixing axle 7 supporting sephere 4,
Spheroid 4 and two valve seats 5 form ball face sealing, and valve seat 5 is pressed to spheroid 4 by the spring force that spring 6 provides, and realizes spheroid 4 and valve
The sealing of seat 5, valve rod 3 drives spheroid 4 to rotate and completes to control aperture action.
The exit of the runner mouth of spheroid 4 is covered by sphere wallboard, and sphere wallboard is the diameter phase of its diameter and spheroid 4
With cabochon and thickness is 12mm, the outside cambered surface of sphere wallboard and the outer surface of spheroid 4 are in same sphere, sphere wallboard
It is fixedly connected with the entity part of spheroid 4, its connected mode can adopt integrally connected, welding etc..Sphere wallboard is provided with simultaneously
So that ball valve is in full-gear, fluid media (medium) can normally circulate wallboard through hole 4-1, and wallboard through hole 4-1 is circular straight-through
Hole, its a diameter of 4mm, and be evenly distributed on sphere wallboard with the spread pattern of 8 row 8 row.In multiple wallboard through hole 4-1
Heart axis is not parallel, and its center axis converge at a bit, and this point is 12mm, multiple wallboard through hole 4-1 simultaneously with the distance of the centre of sphere
Central axis converge point be located at spheroid 4 runner in and on the runner centrage of spheroid 4, contribute to medium and flow through wallboard
Dispersion shunting after through hole 4-1, and it is divided into multi beam fluid when such medium flows through wallboard through hole 4-1, the fluid mutually clashing into
Form turbulent flow, and form relief area and pressure recovery region, in the bubble collapse occurring away from metallic element surface, thus maximum
Limit ground reduces the destruction to valve internals, the effectively generation of suppression cavitation erosion.
With reference to the ball valve of the cavitation-preventive in the present embodiment, describe in detail using this ball valve standard-sized sheet, fully closed and half-open
When the running status of the ball valve and flow process of medium.
During the ball valve standard-sized sheet of cavitation-preventive that the present embodiment provides, as depicted in figs. 1 and 2, valve rod 3 drives spheroid 4 to be in entirely
Open position is so that the media outlet of the runner of spheroid 4 and the valve body being made up of the first valve body 1 and the second valve body 2 and medium
Entrance connects completely, medium entered by medium inlet be divided into after the wallboard through hole 4-1 on sphere wallboard after the runner of spheroid 4 many
Beam fluid, the fluid mutually clashing into forms turbulent flow, and forms relief area and pressure recovery region, is sending out away from metallic element surface
Raw bubble collapse, thus reducing the destruction to valve internals to greatest extent, the generation of effectively suppression cavitation erosion, slows down Jie simultaneously
Mass flow speed, reduces the noise and vibration that fluid produces.
When the ball valve of the cavitation-preventive that the present embodiment provides is fully closed, as shown in Figure 3 and Figure 4, valve rod 3 drives spheroid 4 to be in pass
Closed position, spheroid 4 forms ball face sealing with valve seat 5, and medium cannot circulate, and ball valve is closed it is achieved that the cut-out to medium for the ball valve
Function.
When the ball valve of the cavitation-preventive that the present embodiment provides is half-open, valve rod 3 drives spheroid 4 to be in half-open position, sphere wallboard
Contact with valve seat 5, counteract the out-of-balance force of spheroid 4 and valve seat 5, eliminate the additional force that ball valve produces during stroke
Square；Medium is divided into multi beam fluid after the wallboard through hole 4-1 on sphere wallboard after entering the runner of spheroid 4, the stream mutually clashing into
Body forms turbulent flow, and forms relief area and pressure recovery region, in the bubble collapse occurring away from metallic element surface, thus
Limits ground reduces the destruction to valve internals, the effectively generation of suppression cavitation erosion, slows down velocity of medium simultaneously, reduces fluid and produces
Noise and vibration.
According to different actual conditions, the quantity of scalable sphere wallboard wainscot through hole 4-1, size, shape, to meet
Concrete duty requirements.The setting of the wallboard through hole 4-1 on sphere wallboard, while serving cavitation-preventive, also can play decompression and
Throttling action, high noisy when solving the problems, such as that ball valve works under High Pressure Difference operating mode and strong vibration, reduce the energy of valve
Consume, improve the working environment of operator.
The above, two kinds of specific embodiments only of the present utility model, but protection domain of the present utility model is not
It is confined to this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in
Change or replacement, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with institute
State scope of the claims to be defined.
Claims (10)
1. a kind of ball valve of cavitation-preventive, 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：
The runner mouth of described spheroid (4) is coated with sphere wallboard；
Described sphere wallboard is provided with wallboard through hole (4-1).
2. cavitation-preventive according to claim 1 ball valve it is characterised in that：
Described sphere wallboard is located at the runner exit of described spheroid (4).
3. cavitation-preventive according to claim 1 ball valve it is characterised in that：
Described sphere wallboard is the diameter identical cabochon of its diameter and described spheroid (4), and institute
State the outside cambered surface of sphere wallboard and the outer surface of described spheroid (4) in same sphere.
4. the cavitation-preventive according to any one of claim 1-3 ball valve it is characterised in that：
Described wallboard through hole (4-1) have multiple, not parallel between the central axis of multiple described wallboard through holes (4-1).
5. cavitation-preventive according to claim 4 ball valve it is characterised in that：
The central axis of multiple described wallboard through holes (4-1) converges at a bit, and this point is e with the distance of the centre of sphere, and 5mm≤e≤
15mm.
6. cavitation-preventive according to claim 5 ball valve it is characterised in that：
The point that the central axis of multiple described wallboard through holes (4-1) converges is located on the runner centrage of described spheroid (4).
7. cavitation-preventive according to claim 6 ball valve it is characterised in that：
The point that the central axis of multiple described wallboard through holes (4-1) converges is located in the runner of described spheroid (4).
8. cavitation-preventive according to claim 1 ball valve it is characterised in that：
Described sphere wall panel thickness is a, 10mm≤a≤20mm.
9. cavitation-preventive according to claim 1 ball valve it is characterised in that：
Described wallboard through hole (4-1) is generally circular in shape, a diameter of b, 2mm≤b≤10mm.
10. cavitation-preventive according to claim 1 ball valve it is characterised in that：
Described wallboard through hole (4-1) is uniformly distributed as c row d row, 2≤c≤10,2≤d≤10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620890347.2U CN205978571U (en) | 2016-08-16 | 2016-08-16 | Ball valve that gas -tight loses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620890347.2U CN205978571U (en) | 2016-08-16 | 2016-08-16 | Ball valve that gas -tight loses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205978571U true CN205978571U (en) | 2017-02-22 |
Family
ID=58030643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620890347.2U Withdrawn - After Issue CN205978571U (en) | 2016-08-16 | 2016-08-16 | Ball valve that gas -tight loses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205978571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122507A (en) * | 2016-08-16 | 2016-11-16 | 航天长征化学工程股份有限公司 | Cavitation-proof ball valve |
-
2016
- 2016-08-16 CN CN201620890347.2U patent/CN205978571U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122507A (en) * | 2016-08-16 | 2016-11-16 | 航天长征化学工程股份有限公司 | Cavitation-proof ball valve |
| CN106122507B (en) * | 2016-08-16 | 2024-02-20 | 航天长征化学工程股份有限公司 | Cavitation-resistant ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20240220 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20240220 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |