CN201233538Y - Stepped liquid saving flow regulating apparatus - Google Patents
Stepped liquid saving flow regulating apparatus Download PDFInfo
- Publication number
- CN201233538Y CN201233538Y CNU2008201311366U CN200820131136U CN201233538Y CN 201233538 Y CN201233538 Y CN 201233538Y CN U2008201311366 U CNU2008201311366 U CN U2008201311366U CN 200820131136 U CN200820131136 U CN 200820131136U CN 201233538 Y CN201233538 Y CN 201233538Y
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- CN
- China
- Prior art keywords
- cone
- upgrade
- valve
- progressive
- flow
- 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.)
- Expired - Fee Related
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- Lift Valve (AREA)
- Details Of Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model relates to an upgrade throttle flow regulating device used for controlling the flow of a high pressure-liquid and a high-pressure gas. The upgrade throttle flow regulating device comprises a valve body, a cone-hole valve seat, a cone-head upgrade valve core, a valve sleeve, a valve cover, a guide sleeve, a sealing ring, a transmission nut and an actuating mechanism. The device is characterized in that the valve body is provided with an inlet and an outlet; the cone-head upgrade valve core and the cone-hole valve seat are arranged between the inlet and the outlet; an upgrade throttle annular groove, the cross-sectional area of which is gradually increased, is axially formed on the upper edge of the cone-head upgrade valve core; the actuating mechanism drives the cone-head upgrade valve core to axially moves; the upgrade throttle annular groove on the cone-head upgrade valve core and the inner hole wall of the cone-hole valve seat form a plurality of throttling areas, the areas of which are gradually increased; when fluids pass through the plurality of throttling areas in sequence from a flow passage, the flow is controlled through controlling the axial opening of the cone-head upgrade valve core. The flow regulating device invented, designed and made in the utility model reduces or avoids the destructive effect of cavitation generated by the high-pressure fluids, and has the advantages of high flow resistance, poor high pressure resistance and long service life.
Description
Technical field the utility model relates to a kind of invention of flow regulator, and what be specifically related to is a kind of progressive throttling flow regulator that is used for highly pressurised liquid or gases at high pressure flow control usefulness.
The background technology flow regulator is widely used in the flow control system in various fields as a kind of instrument product.It is better that but common flow regulator is used for big flow adjustment range operating mode result of use, and during for high pressure flow range less than 1m
3The operating mode of/h (cubic meter/hour), adopt the normal flow quantity regulating device can occur the flow regulation precision low, the trim cavitation destroyed problems such as weak point in serious, serviceable life, unstable properties.
The summary of the invention the purpose of this utility model is to be applied to the problems referred to above that low discharge range regulation operating mode exists for solving existing normal flow quantity regulating device, and a kind of progressive throttling flow regulator that can keep high precision adjusting function, anti-cavitation, stable performance under high-pressure low-flow range of adjustment operating mode for a long time is provided.
The purpose of this utility model is achieved in that progressive throttling flow regulator, comprise valve body, the taper hole valve seat, the progressive spool of conehead, valve pocket, valve gap, orienting sleeve, O-ring seal, transmission nut, topworks etc., it is characterized in that: the progressive throttling annular groove that has cross-sectional area to increase gradually in its axial design of the progressive spool of conehead upper edge, throttling annular groove and taper hole valve seat inner hole wall form a plurality of throttling bands that area increases gradually, topworks drives the progressive valve core movement of conehead, aperture position by the progressive spool of control conehead, play the flow regulation effect, the throttling band that area increases gradually reduce simultaneously or avoided high-pressure fluid by the time cavitation destruction that produces.Topworks wherein can adopt electric operator, pneumatic actuator, manual any in the types such as topworks according to actual conditions.
Description of drawings:
Fig. 1 is the structural representation of the utility model example;
Fig. 2 is the enlarged drawing at the progressive spool of the conehead of the utility model example position.
Embodiment is described in further detail below in conjunction with the relevant structure and the principle of work of accompanying drawing to utility model.Referring to Fig. 1, the utility model comprises valve body (1), taper hole valve seat (2), the progressive spool of conehead (3), valve pocket (4), valve gap (5), orienting sleeve (6), O-ring seal (7), transmission nut (8), topworks (9).The characteristics of this progressive throttling flow regulator are that described valve body design has inlet, outlet, design has a progressive spool of conehead (3) between inlet, outlet, and the progressive throttling annular groove that has cross-sectional area to increase gradually in its axial design of the progressive spool of conehead (3) upper edge.Topworks (9) drives transmission nut (8) and rotatablely moves, transmission nut (8) moves up and down by the progressive spool of screw drive conehead (3) on the progressive spool of conehead (3) top, progressive throttling annular groove on the progressive spool of conehead (3) and taper hole valve seat (2) inner hole wall form the throttling band that area increases gradually, thereby the flow size of circulation medium in the adjusting pipeline, reduce simultaneously or avoided high-pressure fluid by the time cavitation destruction that produces, prolonged serviceable life of taper hole valve seat (2) and the progressive spool of conehead (3).
The principle of resisting cavitation below in conjunction with Fig. 2 is described further: when flow regulator is applied to the highly pressurised liquid operating mode, if pressure reduction is excessive, pressure is reduced to a certain emergent pressure, liquid will cavitation, form the hole, when bubble to the higher-pressure region, the steam regelation in the bubble, bubble is crumbled and fall, and this cavitation is very serious to the destruction of internals such as valve seat and spool.And when adopting the progressive throttling flow regulator of the utility model applying high voltage liquid operating mode, referring to Fig. 2, owing to adopted the throttling annular groove that increases progressively step by step, High Pressure Difference is distributed in a plurality of throttlings position, make the pressure of each grade fall to be unlikely excessive and surpass emergent pressure, then can not produce the cavitation destruction, can increase the service life on the one hand, keep high-precision control characteristic simultaneously.
The progressive throttling flow regulator of the utility model is in order to increase the stability of the progressive spool of conehead (3) motion, adopt dual-guiding structure, promptly adopt orienting sleeve (6) guiding on the progressive spool of conehead (3) top, valve pocket (4) guiding is adopted in the progressive spool of conehead (3) bottom.
Claims (2)
1, a kind of progressive throttling flow regulator, comprise valve body (1), taper hole valve seat (2), the progressive spool of conehead (3), valve pocket (4), valve gap (5), orienting sleeve (6), O-ring seal (7), transmission nut (8), topworks (9), it is characterized in that: at a plurality of progressive throttling annular groove that its axial design of the progressive spool of conehead (3) upper edge has cross-sectional area to increase gradually, taper hole valve seat (2) design has the taper hole of two different angles.
2, progressive throttling flow regulator according to claim 1 is characterized in that: the upper design at the progressive spool of conehead (3) has orienting sleeve (6), and the bottom design has guiding valve pocket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201311366U CN201233538Y (en) | 2008-07-27 | 2008-07-27 | Stepped liquid saving flow regulating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201311366U CN201233538Y (en) | 2008-07-27 | 2008-07-27 | Stepped liquid saving flow regulating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233538Y true CN201233538Y (en) | 2009-05-06 |
Family
ID=40619919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201311366U Expired - Fee Related CN201233538Y (en) | 2008-07-27 | 2008-07-27 | Stepped liquid saving flow regulating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233538Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062423A (en) * | 2012-12-31 | 2013-04-24 | 浙江中控流体技术有限公司 | Valve core and valve seat throttling sealing device |
| CN105909803A (en) * | 2016-04-21 | 2016-08-31 | 杭州艾诺流体控制仪表有限公司 | Tapered thread type micro-flow regulating valve |
-
2008
- 2008-07-27 CN CNU2008201311366U patent/CN201233538Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062423A (en) * | 2012-12-31 | 2013-04-24 | 浙江中控流体技术有限公司 | Valve core and valve seat throttling sealing device |
| CN105909803A (en) * | 2016-04-21 | 2016-08-31 | 杭州艾诺流体控制仪表有限公司 | Tapered thread type micro-flow regulating 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: 20090506 Termination date: 20140727 |
|
| EXPY | Termination of patent right or utility model |