CN202118282U - Sleeve pressure-regulating valve - Google Patents
Sleeve pressure-regulating valve Download PDFInfo
- Publication number
- CN202118282U CN202118282U CN2011201622121U CN201120162212U CN202118282U CN 202118282 U CN202118282 U CN 202118282U CN 2011201622121 U CN2011201622121 U CN 2011201622121U CN 201120162212 U CN201120162212 U CN 201120162212U CN 202118282 U CN202118282 U CN 202118282U
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- valve
- sleeve
- flow
- plug
- pressure
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Abstract
The utility model relates to a sleeve pressure-regulating valve, which comprises a valve body, a sleeve, a valve plug, a valve rod, a valve cover, packing and a packing compression plate, wherein the sleeve is located in a cavity of the valve body, a plurality of flow passing through holes communicated with a flow channel in the cavity of the valve body are arranged on the side wall of the sleeve, the valve plug is located in the sleeve, and a sealing surface matched in sealing mode with a valve seat arranged below the flow passing through holes of the sleeve is arranged at the lower end of the valve plug. One end of the valve rod is connected to the valve plug, and the other end of the valve rod extends out of the valve cover to be connected with an actuating mechanism in transmission mode. The sleeve pressure-regulating valve is characterized in that each flow passing through hole arranged on the side wall of the sleeve is a triangle or a trapezoid with the wide upper end and the narrow lower end. The flow characteristic is equal percentage, when the flow changes 10%, the increment of a relative flow is caused to be always 9.88%. Due to the fact that an appropriate increased amount is adopted, the pressure of the valve is increased, and a pumping head is increased.
Description
Technical field
The utility model relates to a kind of pressure regulator valve, specifically is the sleeve pressure regulator valve.
Background technique
Modulating valve is used to regulate flow, pressure and the liquid level of medium.According to the regulator site signal, the aperture of autocontrol valve, thus reach the adjusting of rate-of flow, pressure and liquid level.Modulating valve is made up of actuator and modulating valve two-part, and actuator is divided into electric actuator, hydraulic actuator or pneumatic actuator.Modulating valve is divided into nine big type according to structure: (1) single-seat adjusting valve; (2) regulating valve of two-seater; (3) sleeve adjusting valve; (4) dihedral modulating valve; (5) three-way control valve; (6) membrane valve; (7) butterfly valve; (8) ball valve; (9) camflex valve.Preceding 6 kinds is straight journey, and back three kinds is the angle stroke.The aperture and the relation between the flow of modulating valve have three kinds, are respectively fast katal property, linear performance and equal percentage characteristics.Wherein equal percentage flow characteristic-ideally, for the equal increments of spool stroke, flow can be expressed as a constant percentage of the flow when changing for the change of stroke.Flow is less relatively during near valve seat at spool for the variation of stroke, and when spool almost relatively large during standard-sized sheet.Therefore, the valve with intrinsic equal percentage flow characteristic can provide accurate regulating type control in the lower limit part of travel range, and along with spool gradually near fully open position, can increase negotiability fast.Valve with equal percentage flow characteristic can be used for pressure control occasion, most pressure fall normally absorb by system itself and relatively the fraction occasion and the expection of leaving control valve for have the pressure of variable height to fall the occasion of situation.Sleeve adjusting valve belongs to the equal percentage flow characteristic valve, is specially adapted to that amount of leakage is less demanding, the bigger occasion of pressure reduction before and after the valve.The structure of sleeve adjusting valve generally includes valve body, sleeve, valve plug, valve rod, valve gap, filler and hold-down grid.Wherein, Sleeve is arranged in the inner chamber of valve body, have on the sidewall of sleeve with body cavity in the square opening of crossing that is communicated with of runner, valve plug is positioned at sleeve; The valve plug bottom is provided with the sealing surface that valve seat that the opening below has is sealed and matched each other of crossing with sleeve; Valve rod one end connects valve plug, and the other end stretches out with actuator from valve gap and is in transmission connection, and said filler is filled in the stuffing box of valve gap and valve rod formation.Along with the development of society, increasingly high to the performance requirement of pressure regulator valve, require to have bigger pressure, higher lift.But the equal percentage flow characteristic valve is owing to the reason of design can not meet the demands at present.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency that existing technology exists, and provides a kind of noise lower sleeve pressure regulator valve.
For realizing above-mentioned purpose, the utility model provides following technological scheme: a kind of sleeve pressure regulator valve comprises valve body, sleeve, valve plug, valve rod, valve gap, filler and hold-down grid; Wherein, sleeve is arranged in the inner chamber of valve body, have on the sidewall of sleeve several with body cavity in runner be communicated with cross opening; Valve plug is positioned at sleeve, and the valve plug lower end is provided with the sealing surface that valve seat that the opening below has is sealed and matched each other of crossing with sleeve, and valve rod one end connects valve plug; The other end stretches out with actuator from valve gap and is in transmission connection; Said filler is filled in the stuffing box that valve gap and valve rod form, and it is characterized in that: on the sidewall of said sleeve cross opening be shaped as triangle wide at the top and narrow at the bottom or trapezoidal, Flow characteristics is an equal percentage; When changing 10%, the increment of caused relative discharge always 9.88%.
Adopt technique scheme, owing to be triangle wide at the top and narrow at the bottom or trapezoidal with the shaped design of crossing opening on the sidewall of sleeve, Flow characteristics is an equal percentage, and when variation 10%, the increment of caused relative discharge always 9.88%.Owing to adopted suitable increment, improved the pressure of valve, increased lift.
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Description of drawings
Fig. 1 is the utility model specific embodiment structure sectional view.
Embodiment
As shown in Figure 1, the sleeve pressure regulator valve comprises valve body 1, sleeve 2, valve plug 3, valve rod 4, valve gap 5, filler 6 and hold-down grid 7.Wherein, Sleeve 2 is arranged in the inner chamber of valve body 1; Have on the sidewall of sleeve 2 several with valve body 1 inner chamber in runner be communicated with cross opening 8, evenly be provided with four along circumference in this specific embodiment and cross openings 8, valve plug 3 is positioned at sleeve 2; Valve plug 3 lower ends are provided with the sealing surface that valve seat that opening 8 belows have is sealed and matched each other of crossing with sleeve 2; Valve rod 4 one ends connect valve plug 3, and the other end stretches out with actuator from valve gap 5 and is in transmission connection, and selects the electric actuator (not shown) in this specific embodiment for use.Said filler 6 is filled in the stuffing box of valve gap 5 and valve rod 4 formation, and valve seat 9 is fixed on the lower end of sleeve 2, crosses the below of opening 8; The shape of crossing opening 8 is with triangle wide at the top and narrow at the bottom or trapezoidal for good; The shape of crossing opening is preferably isosceles triangle or trapezoidal; It is equal percentage that shape and the size of crossing opening 8 should satisfy Flow characteristics, when changing 10%, and the increment of caused relative discharge always 9.88%.
Claims (2)
1. a sleeve pressure regulator valve comprises valve body, sleeve, valve plug, valve rod, valve gap, filler and hold-down grid, wherein; Sleeve is arranged in the inner chamber of valve body, have on the sidewall of sleeve several with body cavity in runner be communicated with cross opening, valve plug is positioned at sleeve; The valve plug lower end is provided with the sealing surface that valve seat that the opening below has is sealed and matched each other of crossing with sleeve; Valve rod one end connects valve plug, and the other end stretches out with actuator from valve gap and is in transmission connection, and said filler is filled in the stuffing box of valve gap and valve rod formation; It is characterized in that: on the sidewall of said sleeve cross opening be shaped as triangle wide at the top and narrow at the bottom or trapezoidal; Flow characteristics is an equal percentage, when changing 10%, and the increment of caused relative discharge always 9.88%.
2. sleeve pressure regulator valve according to claim 1 is characterized in that: said cross opening be shaped as isosceles triangle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201622121U CN202118282U (en) | 2011-05-20 | 2011-05-20 | Sleeve pressure-regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201622121U CN202118282U (en) | 2011-05-20 | 2011-05-20 | Sleeve pressure-regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118282U true CN202118282U (en) | 2012-01-18 |
Family
ID=45459349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201622121U Expired - Fee Related CN202118282U (en) | 2011-05-20 | 2011-05-20 | Sleeve pressure-regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223879A (en) * | 2017-12-15 | 2018-06-29 | 河南航天液压气动技术有限公司 | Proportioning valve and its valve seat |
-
2011
- 2011-05-20 CN CN2011201622121U patent/CN202118282U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223879A (en) * | 2017-12-15 | 2018-06-29 | 河南航天液压气动技术有限公司 | Proportioning valve and its valve seat |
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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: 20120118 Termination date: 20170520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |