CN202056500U - Supercritical adjusting drain valve with pressure reducing and throttling plate - Google Patents
Supercritical adjusting drain valve with pressure reducing and throttling plate Download PDFInfo
- Publication number
- CN202056500U CN202056500U CN2011201758935U CN201120175893U CN202056500U CN 202056500 U CN202056500 U CN 202056500U CN 2011201758935 U CN2011201758935 U CN 2011201758935U CN 201120175893 U CN201120175893 U CN 201120175893U CN 202056500 U CN202056500 U CN 202056500U
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- China
- Prior art keywords
- valve
- drain valve
- supercritical
- valve body
- adjusting drain
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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 - Fee Related
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Abstract
A supercritical adjusting drain valve with a pressure reducing and throttling plate belongs to the technical field of valves, and particularly relates to a drain valve. The supercritical adjusting drain valve includes a valve body and a valve cover, a valve seat is arranged in the valve body, the valve cover is connected with a support, a valve rod and a valve rod nut are arranged in the support, a valve core is connected with the lower end of the valve rod, the upper part of the valve body is connected with a support flange, the pressure reducing and throttling plate is arranged in the valve seat and includes a bowl-shaped outer side sleeve with an opening at the bottom, a plurality of through holes are formed on a side wall of the outer side sleeve, at least two inner side sleeves are arranged inside the outer side sleeve, an annular groove is arranged on the side wall of each inner side sleeve, and a plurality of through holes are arranged in the annular grooves. The supercritical adjusting drain valve has the benefits of adjustable flow, long service life, and good seal performance.
Description
Technical field
The utility model belongs to the valve technology field, 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 flow is unadjustable, the life-span short, poor sealing.
Summary of the invention
The purpose of this utility model is: provide that a kind of flow is adjustable, the life-span is long, the drain valve of good airproof performance.
The purpose of this utility model is achieved in that the overcritical adjusting drain valve of band decompression throttling dish, comprise valve body and valve gap, valve seat is set in the valve body, valve gap connects support, valve rod and Stem Mut are set in the support, the valve rod lower end connects spool, valve body top connects flange bracket, the expenditure and pressure dish is set in the described valve seat, the expenditure and pressure dish comprises the bowl-shape outside cover of a bottom opening, and the sidewall of described outside cover is offered some through holes, at least two inboard covers of the inner setting of described outside cover, the sidewall of described each inboard cover is provided with circular groove, and some through holes are set in the described circular groove.
As further improvement of the utility model, between described flange bracket and the described valve gap wedge-type seal ring is set.
When the utility model passes through pressurized gas, owing to the utlity model has a plurality of inboard covers, can realize the process of compression-expansion-recompression-expansion-recompression, compressing and expanding all can reduce hydrodynamic pressure each time, eliminates hydraulic potential.Final hydrodynamic pressure is descended greatly, realize the step-down 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.
The interior pressure thrust of bonnet lower end face and the impacting force of flange bracket will be exerted pressure up and down to the wedge-type seal ring simultaneously, realize the external effective sealing of valve.Transmit downwards by the impacting force of flange bracket simultaneously, can compress expenditure and pressure dish and valve seat.
Because the expenditure and pressure dish outside is by the rule design throttle orifice that distributed, spool has changed the quantity that open in the hole when spool moves up and down, and these hole number can change the output flow of valve, thereby have realized the Flow-rate adjustment of valve.
In sum, the utlity model has that flow is adjustable, the life-span is long, the beneficial effect of good airproof performance.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the structural representation of expenditure and pressure dish of the present utility model.
Fig. 3 is that the AA of Fig. 2 is to sectional view.
Embodiment
As Fig. 1,2, shown in 3, the overcritical adjusting drain valve of band decompression throttling dish, comprise valve body 1 and valve gap 6, valve seat 2 is set in the valve body 1, valve gap 6 connects support 7, valve rod 8 and Stem Mut 9 are set in the support 7, valve rod 8 lower ends connect spool 12, valve body 1 top connects flange bracket 5, and expenditure and pressure dish 3 is set in the valve seat 2, and expenditure and pressure dish 3 comprises the bowl-shape outside cover 16 of a bottom opening, the sidewall of outside cover 16 is offered some through holes, cover 16 inside, the outside are provided with three inboard covers 13,14,15, the sidewall of each inboard cover is provided with circular groove 17, and some through holes are set in the circular groove 17.
Between flange bracket 5 and the valve gap 6 wedge-type seal ring 4 is set.Aperture indication 10 also is set on the support 7, between valve body 1 and the valve gap 6 stem packing 11 is set also.
Claims (2)
1. be with the overcritical adjusting drain valve of decompression throttling dish, comprise valve body and valve gap, valve seat is set in the valve body, valve gap connects support, valve rod and Stem Mut are set in the support, the valve rod lower end connects spool, valve body top connects flange bracket, it is characterized in that: the expenditure and pressure dish is set in the described valve seat, the expenditure and pressure dish comprises the bowl-shape outside cover of a bottom opening, and the sidewall of described outside cover is offered some through holes, at least two inboard covers of the inner setting of described outside cover, the sidewall of described each inboard cover is provided with circular groove, and some through holes are set in the described circular groove.
2. the overcritical adjusting drain valve of band decompression throttling dish according to claim 1 is characterized in that: between described flange bracket and the described valve gap wedge-type seal ring is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201758935U CN202056500U (en) | 2011-05-30 | 2011-05-30 | Supercritical adjusting drain valve with pressure reducing and throttling plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201758935U CN202056500U (en) | 2011-05-30 | 2011-05-30 | Supercritical adjusting drain valve with pressure reducing and throttling plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056500U true CN202056500U (en) | 2011-11-30 |
Family
ID=45016472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201758935U Expired - Fee Related CN202056500U (en) | 2011-05-30 | 2011-05-30 | Supercritical adjusting drain valve with pressure reducing and throttling plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056500U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867882A (en) * | 2012-12-10 | 2014-06-18 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain 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 |
| CN107120466A (en) * | 2017-07-06 | 2017-09-01 | 李岑文达 | A kind of extra-supercritical unit high pressure bypass valve |
-
2011
- 2011-05-30 CN CN2011201758935U patent/CN202056500U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867882A (en) * | 2012-12-10 | 2014-06-18 | 苏州科迪流体控制设备有限公司 | Low-flow-resistance drain 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 |
| CN107120466A (en) * | 2017-07-06 | 2017-09-01 | 李岑文达 | A kind of extra-supercritical unit high pressure bypass valve |
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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: 20111130 Termination date: 20180530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |