CN201326825Y - High-pressure labyrinth anti-cavitation sleeve valve - Google Patents
High-pressure labyrinth anti-cavitation sleeve valve Download PDFInfo
- Publication number
- CN201326825Y CN201326825Y CNU2008202174116U CN200820217411U CN201326825Y CN 201326825 Y CN201326825 Y CN 201326825Y CN U2008202174116 U CNU2008202174116 U CN U2008202174116U CN 200820217411 U CN200820217411 U CN 200820217411U CN 201326825 Y CN201326825 Y CN 201326825Y
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- Prior art keywords
- pressure
- valve
- valve body
- plate
- labyrinth
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a high-pressure labyrinth anti-cavitation sleeve valve. The utility model is characterized in that a pressure reducing plate is arranged on a valve seat, a pressure plate is arranged on the pressure reducing plate, and the pressure reducing plate is fixed in a valve body through the pressure plate and the valve seat; an upper cover is arranged on the pressure plate, and the upper cover and the valve body are connected and fixed through a bolt; a valve core component is arranged in the valve body; packing and a packing gland are arranged between the valve core component and the upper cover, and the space between the valve core component and the upper cover is sealed through the packing. The pressure reducing plate adopts a labyrinth pressure plate. The sleeve valve has simple, compact and reasonable structure; a sleeve is driven to move by an executing mechanism; the executing mechanism drives the sleeve to move up and down to control the flow in the labyrinth pressure reducing plate and change the flow area, so as to control the flow and the pressure of fluid; the special structure of the labyrinth pressure reducing plate greatly reduces the pressure of the fluid after passing through the pressure reducing plate, thereby weakening the speed power of the fluid, avoiding the damage to the valve body and reducing the vibration of the valve body as well as the noise figure.
Description
Technical field
The utility model relates to a kind of high pressure labyrinth type anti-cavitation sleeve valve, specifically is suitable for employed valve in supply and drain water system and the industrial fluids system, belongs to the machinery valve industry field.
Background technique
In the existing technology, particularly in industrial fluids power conduit system, valve is primary element of realizing whole system automation control.Its assurance system control safe, instant and effectively, central topmost factor is the adjusting of pressure, speed and the operation of flow control valve, particularly under High Temperature High Pressure, and can not cause the infringement of valve body and system under any operation.It is the problem place that this field domestic demand solves.The common problem that conventional control valve exists under harsh operating mode is:
1, trim is fragile, easily vibration: under harsh operating mode, particularly under the fluid effect of high pressure, high speed, flow control valve very easily produces violent oscillation phenomenon.High-velocity fluid is to the damage that also very easily causes trim of washing away of trim.
2, the generation of air pocket, cavitation phenomenon: when the pressure of fluid drops to below the vapor pressure, just be easy to generate the generation of steam flashing and bubble, the existence of this phenomenon very easily causes damage to trim.
3, operation is subjected to the operating mode restriction: when High Pressure Difference or big flow generation, traditional rotary-type or ball-type control valve has performance constraint to a certain degree.Can produce the generation that cavitation phenomenons also has high noisy.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of high pressure labyrinth type anti-cavitation sleeve valve is provided, fluid is reduced greatly through the pressure behind the decompression board, weakened the speed energy of fluid, avoid the infringement of valve body, reduced the vibration and the noise coefficient of valve.
The technological scheme that provides according to the utility model, high pressure labyrinth type anti-cavitation sleeve valve comprises valve body, valve seat, loam cake and mangetic core assembly, feature is: on the described valve seat decompression board is housed, pressing plate is housed on the decompression board, described decompression board is fixed in the valve body by pressing plate and valve seat, loam cake is housed on the pressing plate, be connected and fixed by bolt between loam cake and the valve body, mangetic core assembly is installed in the valve body, filler and Gland are housed between mangetic core assembly and the loam cake, seal by filler between mangetic core assembly and the loam cake.Described decompression board is the mazy type pressing plate.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Moving of sleeve finished by the driving of actuator; Actuator drives sleeve and moves up and down the flow of controlling by the labyrinth decompression board, changes circulation area; And then the flow and the pressure of the fluid that passes through of control, because the special construction of labyrinth decompression board makes fluid reduce greatly through the pressure behind the decompression board, weakened the speed energy of fluid, avoided the infringement of valve body, reduced the vibration and the noise coefficient of valve.
Description of drawings
Fig. 1 is the utility model structure sectional view.
Fig. 2 is the structural representation of the utility model labyrinth decompression board.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
As shown in Figure 1: comprise valve body 1, valve seat 2, decompression board 3, pressing plate 4, loam cake 5, mangetic core assembly 6, filler 7 and Gland 8 etc.
By as above structure Design, the pressure of the fluid of this valve of flowing through reduces greatly, and speed tends towards stability, and has significantly reduced air pocket cavitation and cavitation phenomenons, and has overcome the phenomenon of vibration, even the fluid of High Pressure Difference is by also without any vibration.
In sum, high pressure labyrinth type anti-cavitation sleeve valve vibrates than flow pressure control, minimizing in the prior art really and all increases on working life.
Claims (2)
1, a kind of high pressure labyrinth type anti-cavitation sleeve valve, comprise valve body (1), valve seat (2), loam cake (5) and mangetic core assembly (6), it is characterized in that: decompression board (3) is housed on the described valve seat (2), pressing plate (4) is housed on the decompression board (3), described decompression board (3) is fixed in the valve body (1) by pressing plate (4) and valve seat (2), loam cake (5) is housed on the pressing plate (4), loam cake (5) and valve body (1) are connected and fixed, mangetic core assembly (6) is installed in the valve body (1), filler (7) and Gland (8) are housed between mangetic core assembly (6) and the loam cake (5), seal by filler (7) between mangetic core assembly (6) and the loam cake (5).
2, high pressure labyrinth type anti-cavitation sleeve valve according to claim 1 is characterized in that described decompression board (3) is the mazy type pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202174116U CN201326825Y (en) | 2008-11-20 | 2008-11-20 | High-pressure labyrinth anti-cavitation sleeve valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202174116U CN201326825Y (en) | 2008-11-20 | 2008-11-20 | High-pressure labyrinth anti-cavitation sleeve valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326825Y true CN201326825Y (en) | 2009-10-14 |
Family
ID=41178799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202174116U Expired - Lifetime CN201326825Y (en) | 2008-11-20 | 2008-11-20 | High-pressure labyrinth anti-cavitation sleeve valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326825Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898754A (en) * | 2020-07-06 | 2022-01-07 | 上海大通仪表有限公司 | PCV relief valve that overhauls on line |
-
2008
- 2008-11-20 CN CNU2008202174116U patent/CN201326825Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898754A (en) * | 2020-07-06 | 2022-01-07 | 上海大通仪表有限公司 | PCV relief valve that overhauls on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUXI SMART AUTO-CONTROL ENGINEERING CO., LTD. Free format text: FORMER NAME: WUXIN INTELLIGENT AUTOMATIC CONTROL ENGINEERING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214026 Jiangsu Province, Wuxi City Station District National hi tech Development Zone Economic Development Park A District No. 18 Patentee after: Wuxi Smart Auto-Control Engineering Co., Ltd. Address before: 214026 Jiangsu Province, Wuxi City Station District National hi tech Development Zone Economic Development Park A District No. 18 Patentee before: Wuxin Intelligent Automatic Control Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |