CN2599361Y - Multi-stage pressure regulating valve - Google Patents
Multi-stage pressure regulating valve Download PDFInfo
- Publication number
- CN2599361Y CN2599361Y CNU022920927U CN02292092U CN2599361Y CN 2599361 Y CN2599361 Y CN 2599361Y CN U022920927 U CNU022920927 U CN U022920927U CN 02292092 U CN02292092 U CN 02292092U CN 2599361 Y CN2599361 Y CN 2599361Y
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- CN
- China
- Prior art keywords
- throttling
- valve
- produce
- overcoat
- pressure
- 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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- Details Of Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
A multi-level adjusting valve includes a valve provided with an air inlet hole and an air outlet hole, a valve seat, a valve cover, a valve stem and a hand wheel; wherein, a harness, a throttle outer sleeve, a pressure reducing sleeve, and a pressure regulating assembly formed from a throttle inner sleeve and a throttle valve flap, which can have 6 times of pressure lowering to the high-pressure media. The utility model is characterized in prevention of erosion, noise and vibration produced by high-speed air flow, safety and reliability, and long service life.
Description
Technical field
The utility model relates to the regulator on a kind of high-pressure medium pipeline, particularly a kind of multi-stage pressure regulating valve that is applicable on the pipelines such as high-pressure natural gas, steam, air.
Background technique
At present, the domestic valve that uses on the high-pressure medium delivery line mostly is to lower practical pressure from high pressure direct regulation and control.This valve that makes medium realize step-down, throttling and Flow-rate adjustment under High Pressure Difference under the effect of high velocity air, is easy to generate erosion, makes sealing material impaired, also causes excessive noise and vibration easily, reduces the working life of valve.
Summary of the invention
The purpose of this utility model provides a kind of valve that can realize multistage step-down.It has can eliminate erosion and noise that causes and the vibration that high velocity air causes, safe and reliable, the characteristics of long service life.
The purpose of this utility model is achieved in that this device comprises valve body, valve seat, valve gap, valve rod, the handwheel that has inlet hole and air outlet hole, it is characterized in that in the vestibule that valve body, valve seat and valve gap constitute, be disposed with the pressure regulation assembly that fixed cover, throttling overcoat, pressure reducing sleeve, the interior cover of throttling and throttling flap are formed.
Positioning groove is produced in the upper end of the fixed cover in the above-mentioned pressure regulation assembly, produces pod apertures on circumferential surface equably; On the outer peripheral surface of throttling overcoat, produce behind the sealing bulge loop in the top with throttling in the upper end overlapped produce positioning groove, and produce 3 grades on the circumferential surface that in throttling overcoat and throttling, overlaps, produce the 4-6 row aperture that pore size is alternate and be uniformly distributed along the circumference again, between every two-stage aperture, produce the pod apertures that is uniformly distributed along the circumference for every grade; Positioning groove is produced in upper end at pressure reducing sleeve, makes 3 grades on circumferential surface, produces in aperture and the throttling for every grade and overlaps, puts the 4-6 round that the macropore diameter is identical and be uniformly distributed along the circumference outward, produces the pod apertures that is uniformly distributed along the circumference between the two-stage aperture.
On the throttling flap in the above-mentioned pressure regulation assembly, produce vertically with throttling overcoat, pressure reducing sleeve and throttling in put the identical sealing bulge loop of throttling pore progression, be assembled in the inner chamber of cover in the throttling, the upper end is connected with valve rod with splitting volution.
In the utility model, aperture in throttling overcoat, pressure reducing sleeve and the throttling on every grade of circumferential surface of cover is determined assembly relation between them, the i.e. decompression hole that formation communicates by the positioning block that installs in its positioning groove, MEDIA FLOW through the time, just can form the effect of step-down throttling.
Description of drawings
Below with reference to accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of throttling overcoat.
Fig. 3 is the structural representation of pressure reducing sleeve.
Fig. 4 is the structural representation of cover in the throttling.
To be described in further detail the present invention by example below, but following example only is an example of the present invention, does not represent institute of the present invention restricted portion.
Embodiment
According to Fig. 1--4 describe concrete structure of the present utility model in detail, and this device comprises parts such as cover 3, pressure reducing sleeve 4, throttling overcoat 5, positioning block 6, valve gap 7, handwheel 8, valve rod 9, throttling flap 10, fixed cover 11 in the valve body 1 that has inlet hole and air outlet hole, valve seat 2, the throttling.Wherein have in the valve body 1, valve seat 2 of inlet hole and air outlet hole and the vestibule that valve gap 7 constitutes, be installed into the pressure regulation assembly of forming by cover 5 and fixed cover 11 in throttling overcoat 3, pressure reducing sleeve 4, the throttling, behind positioning block 6 location, fixed cover 11 is packed on the step of valve body 1 with valve gap 7 again, and with overlap 3 in the throttling, pressure reducing sleeve 4 and throttling overcoat 5 be packed on the step of valve seat 2, throttling flap 10 is put in the inner chamber of cover 3 in the throttling, formation is slidingly matched, its upper end links to each other with valve rod 9 with splitting volution, and valve rod 9 links to each other with handwheel 8.
Working procedure of the present utility model is: as can be seen from Figure 1, during counter clockwise direction rotation hand wheel 8, valve rod 9 moves up, driving throttling flap 10 moves up, progressively open throttling overcoat 5, first row who goes up number first order aperture in pressure reducing sleeve 4 and the throttling on the cover 3, medium from the inlet hole of valve body 1 by valve body 1 cavity and the turning of 90 ° of the delivery holes of fixed cover 11 after enter throttling overcoat 5, the first order first row's aperture in pressure reducing sleeve 4 and the throttling on the cover 3, carry out 2 step-downs, the aperture of to be medium from the aperture of throttling overcoat 5 enter pressure reducing sleeve 4 is 1 step-down, and the aperture that is entered cover 3 in the throttling by the aperture of pressure reducing sleeve 4 is 2 step-downs.Pass through the cavity and the corresponding pod apertures of valve body 1 through the medium of 2 step-downs, after carrying out 4 times, 6 times step-downs by first row's aperture on first row of the second level on the cover 3 in throttling overcoat 5, pressure reducing sleeve 4 and the throttling and the third level successively, finally enter gas pipeline by the air outlet hole on the valve body 1.
If continue rotation hand wheel 8 counterclockwise, throttling flap 10 continues to rise, and this will open cover in throttling overcoat 5, pressure reducing sleeve 4 and the throttling 3 second row, the 3rd row at different levels successively ... aperture, and opening area increases, only increase rate-of flow, 6 step-downs are still kept in step-down.
Pressure regulation number of times of the present utility model, by overlap 3 in the throttling, the number of the sealing bulge loop corresponding with aperture progression of aperture sum of series throttling flap 10 on pressure reducing sleeve 4 and the throttling overcoat 5 realizes.Showed among Fig. 1 that medium through 6 step-downs, greatly reduces gas flow rate, avoided the erosion of medium, reduced noise and vibration, improved the working life of valve.
Claims (3)
1, a kind of multi-stage pressure regulating valve, comprise the valve body, valve seat, valve gap, valve rod, the handwheel that have inlet hole and air outlet hole, it is characterized in that: in the vestibule that valve body, valve seat and valve gap constitute, be disposed with the pressure regulation assembly that fixed cover, throttling overcoat, pressure reducing sleeve, the interior cover of throttling and throttling flap are formed.
2, multi-stage pressure regulating valve according to claim 1 is characterized in that positioning groove is produced in the upper end of the fixed cover in the pressure regulation assembly, produces pod apertures on circumferential surface equably; On the side face of the outer garden of throttling overcoat, produce behind the sealing bulge loop in the top with throttling in the upper end overlapped produce positioning groove, and produce 3 grades on the circumferential surface that in throttling overcoat and throttling, overlaps, produce the 4-6 row aperture that pore size is alternate and be uniformly distributed along the circumference again, between every two-stage aperture, produce the pod apertures that is uniformly distributed along the circumference for every grade; Positioning groove is produced in upper end at pressure reducing sleeve, makes 3 grades on circumferential surface, produces that aperture and throttling are inside and outside to put the 4-6 round that big bore dia is identical and be uniformly distributed along the circumference for every grade, produces the pod apertures that is uniformly distributed along the circumference between the two-stage aperture.
3, multi-stage pressure regulating valve according to claim 1, it is characterized in that on the throttling flap in the pressure regulation assembly, produce vertically with throttling overcoat, pressure reducing sleeve and throttling in put the identical sealing bulge loop of throttling pore progression, be assembled in the inner chamber of cover in the throttling, the upper end is connected with valve rod with splitting volution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022920927U CN2599361Y (en) | 2002-12-27 | 2002-12-27 | Multi-stage pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022920927U CN2599361Y (en) | 2002-12-27 | 2002-12-27 | Multi-stage pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599361Y true CN2599361Y (en) | 2004-01-14 |
Family
ID=34151622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022920927U Expired - Fee Related CN2599361Y (en) | 2002-12-27 | 2002-12-27 | Multi-stage pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599361Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516606C (en) * | 2004-09-28 | 2009-07-22 | Cla-Val公司 | Anti-cavitation valve assembly |
| CN102966747A (en) * | 2012-11-21 | 2013-03-13 | 瑞安市良精石化机械厂 | High-pressure-difference-resisting multi-grade adjusting device for pipeline |
| CN111853342A (en) * | 2020-07-24 | 2020-10-30 | 浙江大学 | Valve core assembly with variable flow characteristic, regulating valve and regulating method of regulating valve |
-
2002
- 2002-12-27 CN CNU022920927U patent/CN2599361Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516606C (en) * | 2004-09-28 | 2009-07-22 | Cla-Val公司 | Anti-cavitation valve assembly |
| CN102966747A (en) * | 2012-11-21 | 2013-03-13 | 瑞安市良精石化机械厂 | High-pressure-difference-resisting multi-grade adjusting device for pipeline |
| CN102966747B (en) * | 2012-11-21 | 2015-03-18 | 浙江美德机械有限公司 | High-pressure-difference-resisting multi-grade adjusting device for pipeline |
| CN111853342A (en) * | 2020-07-24 | 2020-10-30 | 浙江大学 | Valve core assembly with variable flow characteristic, regulating valve and regulating method of regulating valve |
| CN111853342B (en) * | 2020-07-24 | 2021-11-02 | 浙江大学 | Valve core assembly with variable flow characteristic, regulating valve and regulating method of regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Yang Jinsong Designer after: Ren Dawei Designer after: Fan Yunmin Designer after: Zhang Zhenhua Designer after: Mao Zhongqiang Designer after: Wu Yujiang Designer before: Yang Jinsong Designer before: Ren Dawei Designer before: Fan Fangmin Designer before: Zhang Zhenhua Designer before: Mao Zhongqiang Designer before: Wu Yujiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: YANG JINSONG REN DAWEI FAN FANGMIN ZHANG ZHENHUA MAO ZHONGQIANG WU YUJIANGTO: YANG JINSONG REN DAWEI FAN YUNMIN ZHANG ZHENHUA MAO ZHONGQIANG WU YUJIANG |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |