CN201802972U - Low-pressure-difference discharge adjustable drain valve - Google Patents
Low-pressure-difference discharge adjustable drain valve Download PDFInfo
- Publication number
- CN201802972U CN201802972U CN2010205291227U CN201020529122U CN201802972U CN 201802972 U CN201802972 U CN 201802972U CN 2010205291227 U CN2010205291227 U CN 2010205291227U CN 201020529122 U CN201020529122 U CN 201020529122U CN 201802972 U CN201802972 U CN 201802972U
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- valve
- shaft sleeve
- hole
- radial direction
- oval
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- Expired - Fee Related
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Abstract
The utility model provides a low-pressure-difference discharge adjustable drain valve, which relates to a valve, in particular to a drain valve comprising a valve body assembly, wherein the valve body assembly is fixedly connected with a valve cover, a valve rod is arranged in the valve cover, the lower end of the valve rod is fixedly connected with a valve core, a valve seat is fixedly connected in the valve body assembly, the valve cover is connected with the valve body assembly through a flange and a screw bolt, a throttle cover is fixedly arranged in the valve body assembly, the throttle cover is formed by mutually and concentrically sheathing an inner shaft sleeve, a middle shaft sleeve and an outer shaft sleeve, first radial through holes in uniform distribution are arranged on the outer shaft sleeve, first slotted round grooves parallel to the axial direction are uniformly arranged on the outer wall of the middle shaft sleeve, second radial through holes are uniformly arranged on the inner wall of the middle shaft sleeve, the outer wall of the inner shaft sleeve is uniformly provided with second slotted round grooves parallel to the axial direction, and third radial through holes are uniformly arranged on the inner wall of the inner shaft sleeve. The utility model has the advantages of long service life, adjustable flow rate, more reliable external sealing and smaller and more compact dimension of a throttle pressure reduction disc.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of drain valve.
Background technique
Drain valve is a kind of switch valve that is widely used in industries such as electric power, chemical industry, oil, the opening and closing of may command pipeline medium.Realize the automation control of manufacturing process.Existing drain valve size is big, sealing effect is not so good and the life-span is short.
The model utility content
The purpose of this utility model is: the can regulate drain valve that the low differential pressure discharging of characteristics such as a kind of life-span length, flow can regulate, external sealed are more reliable, the littler more compactness of throttling cover size is provided.
The purpose of this utility model is achieved in that the can regulate drain valve of low differential pressure discharging, comprise valve component, the fixedly connected valve gap of valve component, valve rod is set in the valve gap, the fixedly connected spool in the lower end of valve rod, the valve component internal fixation connects valve seat, valve gap is connected valve component by flange with bolt, described valve component internal fixation is provided with the throttling cover, described throttling cover is by internal axle sleeve, Intermediate shaft sleeve, external axle sleeve is nested with one heart mutually and forms, offer equally distributed first radial direction through hole on the external axle sleeve, the Intermediate shaft sleeve outer wall is evenly offered first oval-shaped slot with parallel to an axis, corresponding first radial direction through hole of the corresponding external axle sleeve in the bottom of each first oval-shaped slot, the Intermediate shaft sleeve inwall is evenly offered second radial direction through hole, each second radial direction through hole is communicated with the corresponding first oval-shaped slot top of described Intermediate shaft sleeve, the outer wall of internal axle sleeve is evenly offered second oval-shaped slot with parallel to an axis, corresponding second radial direction through hole of the corresponding Intermediate shaft sleeve in the top of each second oval-shaped slot, the internal axle sleeve inwall is evenly offered the 3rd radial direction through hole, and each the 3rd radial direction through hole is communicated with the corresponding second oval-shaped slot bottom of described internal axle sleeve.
When the utility model used, fluid was realized the process of compression, expansion, recompression, expansion, recompression successively by above-mentioned each through hole, and compressing and expanding all can reduce hydrodynamic pressure each time, eliminates hydraulic potential.Final hydrodynamic pressure is descended greatly, realize the low pressure discharging; Because fluid enters lumen by top and flows out through valve seat, make that fluid pressure difference reduces before and after the valve seat, can alleviate the High Pressure Difference fluid so greatly to the washing away of valve seat, protect sealing surface effectively, realize exempting to wash away, prolong the working life of sealing surface.
Because the throttling cover outside is by the rule design through hole that distributed, spool has changed the quantity that through hole is opened when spool moves up and down, and these number of openings can change the output flow of valve, thereby have realized the Flow-rate adjustment of valve.
The beneficial effects of the utility model are: life-span length, flow can regulate, external sealed is more reliable, expenditure and pressure dish size is littler compacter.
As further improvement of the utility model, the wedge-type seal ring is set between described valve gap and the flange.The interior pressure thrust of bonnet lower end face and the impacting force of flange will be exerted pressure up and down to the wedge-type seal ring simultaneously like this, realize the external effective sealing of valve.Transmit downwards by the impacting force of flange simultaneously, can compress throttling cover and valve seat.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of structural representation of throttling cover of the present utility model.
Fig. 3 is a kind of structural representation of Intermediate shaft sleeve.
Wherein, 1-valve component, 2-throttling cover, 3-spool, 4-valve gap, 5-wedge-type seal ring, 6-flange, 7-valve seat, 8-bolt, 9-valve rod, 10-internal axle sleeve, 11-Intermediate shaft sleeve, 12-external axle sleeve, 13-the 3rd radial direction through hole, 14-second oval-shaped slot, 15-second radial direction through hole, 16-first oval-shaped slot, 17-first radial direction through hole.
Embodiment
As Fig. 1,2, shown in 3, the can regulate drain valve of low differential pressure discharging, comprise valve component 1, valve component 1 fixedly connected valve gap 4, valve rod 9 is set in the valve gap 4, the fixedly connected spool 3 in the lower end of valve rod 9, valve component 1 internal fixation connects valve seat 7, valve gap 4 is connected valve component 1 by flange 6 with bolt 8, valve component 1 internal fixation is provided with throttling cover 2, throttling cover 2 is by internal axle sleeve 10, Intermediate shaft sleeve 11, external axle sleeve 12 is nested with one heart mutually and forms, offer equally distributed first radial direction through hole 17 on the external axle sleeve 12, Intermediate shaft sleeve 11 outer walls are evenly offered first oval-shaped slot 16 with parallel to an axis, corresponding external axle sleeve 12 corresponding first radial direction through hole 17 in the bottom of each first oval-shaped slot 16, Intermediate shaft sleeve 11 inwalls are evenly offered second radial direction through hole 15, each second radial direction through hole 15 is communicated with Intermediate shaft sleeve 11 corresponding first oval-shaped slot 16 tops, the outer wall of internal axle sleeve 10 is evenly offered second oval-shaped slot 14 with parallel to an axis, corresponding Intermediate shaft sleeve 11 corresponding second radial direction through hole 15 in the top of each second oval-shaped slot 14, internal axle sleeve 10 inwalls are evenly offered the 3rd radial direction through hole 13, and each the 3rd radial direction through hole 13 is communicated with internal axle sleeve 10 corresponding second oval-shaped slot 14 bottoms.Between valve gap 4 and the flange 6 wedge-type seal ring 5 is set.
Claims (2)
1. the can regulate drain valve of low differential pressure discharging, comprise valve component, the fixedly connected valve gap of valve component, valve rod is set in the valve gap, the fixedly connected spool in the lower end of valve rod, the valve component internal fixation connects valve seat, valve gap is connected valve component by flange with bolt, it is characterized in that: described valve component internal fixation is provided with the throttling cover, described throttling cover is by internal axle sleeve, Intermediate shaft sleeve, external axle sleeve is nested with one heart mutually and forms, offer equally distributed first radial direction through hole on the external axle sleeve, the Intermediate shaft sleeve outer wall is evenly offered first oval-shaped slot with parallel to an axis, corresponding first radial direction through hole of the corresponding external axle sleeve in the bottom of each first oval-shaped slot, the Intermediate shaft sleeve inwall is evenly offered second radial direction through hole, each second radial direction through hole is communicated with the corresponding first oval-shaped slot top of described Intermediate shaft sleeve, the outer wall of internal axle sleeve is evenly offered second oval-shaped slot with parallel to an axis, corresponding second radial direction through hole of the corresponding Intermediate shaft sleeve in the top of each second oval-shaped slot, the internal axle sleeve inwall is evenly offered the 3rd radial direction through hole, and each the 3rd radial direction through hole is communicated with the corresponding second oval-shaped slot bottom of described internal axle sleeve.
2. the can regulate drain valve of low differential pressure discharging according to claim 1 is characterized in that: the wedge-type seal ring is set between described valve gap and the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205291227U CN201802972U (en) | 2010-09-15 | 2010-09-15 | Low-pressure-difference discharge adjustable drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205291227U CN201802972U (en) | 2010-09-15 | 2010-09-15 | Low-pressure-difference discharge adjustable drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802972U true CN201802972U (en) | 2011-04-20 |
Family
ID=43872470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205291227U Expired - Fee Related CN201802972U (en) | 2010-09-15 | 2010-09-15 | Low-pressure-difference discharge adjustable drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802972U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206546A (en) * | 2013-04-10 | 2013-07-17 | 南通红星高压阀门有限公司 | Isolating type adjusting valve |
| CN105422982A (en) * | 2015-12-31 | 2016-03-23 | 杭州华惠阀门有限公司 | Pressure reducing valve |
| CN105899863A (en) * | 2013-11-15 | 2016-08-24 | 诺沃皮尼奥内股份有限公司 | Multistage trim for control valves |
| CN105972223A (en) * | 2016-05-10 | 2016-09-28 | 伯特利阀门集团有限公司 | Labyrinth type regulating valve with porous sleeves |
-
2010
- 2010-09-15 CN CN2010205291227U patent/CN201802972U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206546A (en) * | 2013-04-10 | 2013-07-17 | 南通红星高压阀门有限公司 | Isolating type adjusting valve |
| CN105899863A (en) * | 2013-11-15 | 2016-08-24 | 诺沃皮尼奥内股份有限公司 | Multistage trim for control valves |
| CN105899863B (en) * | 2013-11-15 | 2018-03-23 | 诺沃皮尼奥内股份有限公司 | Multistage internals for control valve |
| CN105422982A (en) * | 2015-12-31 | 2016-03-23 | 杭州华惠阀门有限公司 | Pressure reducing valve |
| CN105972223A (en) * | 2016-05-10 | 2016-09-28 | 伯特利阀门集团有限公司 | Labyrinth type regulating valve with porous sleeves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20150915 |
|
| EXPY | Termination of patent right or utility model |