CN207539347U - Big regulating ratio single seat pressure reducing valve - Google Patents
Big regulating ratio single seat pressure reducing valve Download PDFInfo
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- CN207539347U CN207539347U CN201721678644.1U CN201721678644U CN207539347U CN 207539347 U CN207539347 U CN 207539347U CN 201721678644 U CN201721678644 U CN 201721678644U CN 207539347 U CN207539347 U CN 207539347U
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- flow
- valve
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- flow window
- sleeve
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Abstract
The utility model is related to a kind of big regulating ratio single seat pressure reducing valve, be particularly used for valve body tiny flow quantity, high pressure depressurized system Accurate Data Flow Control, belong to flow control valve technical field.It includes sleeve, valve seat, valve rod and spool, it is equipped with first flow window structure and second flow window structure in sleeve lateral wall successively from the bottom up, first flow window structure includes at least one first flow window, and aperture becomes larger first flow window from the bottom up；Second flow window structure includes multiple along the equally distributed second flow group of windows in circumference direction, each second flow group of windows mutually staggers in the height direction, and each second flow group of windows includes multiple second flow windows being equally spaced from top to bottom.The utility model is simple in structure, compact, reasonable, easy to maintenance, stable and reliable in work；Flow adjustment range is improved, can be segmented and tiny flow quantity is accurately controlled.
Description
Technical field
The utility model is related to a kind of big regulating ratio single seat pressure reducing valves, are particularly used for valve body tiny flow quantity, high pressure
Depressurized system Accurate Data Flow Control, belong to flow control valve technical field.
Background technology
There are one spool and a valve seats in single-seat adjusting valve valve body, have the characteristics that leakage rate is small.The valve out-of-balance force
Greatly, permissible pressure is small compared with double-beat drop valve, in High Pressure Difference, heavy caliber, preferably mixes valve positioner.
In the prior art, flow is controlled using single spool pairing valve seat in single-seat adjusting valve valve body, so as to reach
Antihypertensive effect, but tiny flow quantity part is controlled inaccurate and effective；Conventional regulating ratio only has 30 ~ 50.
Invention content
In place of the purpose of this utility model is to overcome above-mentioned deficiency, so as to provide a kind of big regulating ratio single seat pressure reducing valve,
Flow adjustment range is improved, tiny flow quantity can accurately be controlled.
According to technical solution provided by the utility model, big regulating ratio single seat pressure reducing valve includes sleeve, valve seat, valve rod and valve
Core, it is characterized in that：Valve seat upper end branch sleeve, sleeve is interior to be equipped with valve chamber, and valve stem slides are connected in valve chamber, the connection of valve rod lower end
Spool, spool are stretched into valve seat；It is equipped with first flow window structure and second flow window in sleeve lateral wall successively from the bottom up
Structure, first flow window structure include at least one first flow window, and aperture gradually becomes first flow window from the bottom up
Greatly；Second flow window structure include it is multiple along the equally distributed second flow group of windows in circumference direction, each second
Flow group of windows mutually staggers in the height direction, each second flow group of windows include it is multiple be equally spaced from top to bottom the
Two flow windows.
Further, first flow window is water-drop-shaped structure.
Further, second flow window is borehole structure.
Compared with the prior art the utility model has the following advantages：
The utility model is simple in structure, compact, reasonable, easy to maintenance, stable and reliable in work；Improve flow-rate adjustment model
It encloses, tiny flow quantity can accurately be controlled in segmentation.
Description of the drawings
Fig. 1 is the utility model front view.
Fig. 2 is the flow window unfolding assumption diagram of the utility model.
Reference sign：1- sleeves, 2- valve seats, 3- valve rods, 4- spools, 5- valve chambers, 6- first flows window, 7- second
Flow window.
Specific embodiment
The utility model will be further described with reference to the embodiment in attached drawing below：
As shown in Figure 1 and 2, the utility model mainly includes sleeve 1, valve seat 2, valve rod 3 and spool 4.2 upper end of valve seat connects
Sleeve 1, sleeve 1 is interior to be equipped with valve chamber 5, and valve rod 3 is slidably connected in valve chamber 5, and 3 lower end of valve rod connection spool 4, spool 4 stretches into valve
In seat 2.
It is equipped with first flow window structure and second flow window structure on 1 side wall of sleeve successively from the bottom up, it is first-class
Amount window structure includes the first flow window 6 of at least one water-drop-shaped structure, and aperture is gradual from the bottom up for first flow window 6
Become larger, realize the accurate control of tiny flow quantity.
Second flow window structure include it is multiple along the equally distributed second flow group of windows of 1 circumferencial direction of sleeve, respectively
A second flow group of windows mutually staggers in the height direction, and flow can be played in adjusting work by realizing each height change
With.Each second flow group of windows includes the second flow window 7 of multiple borehole structures being equally spaced from top to bottom.
The operation principle of the utility model is：When valve rod and spool move upwards, flow enters in valve chamber.Sleeve lateral wall from
Under up successively be equipped with first flow window structure and second flow window structure, in valve rod uphill process, first fluid into
Enter in first flow window structure, aperture becomes larger first flow window from the bottom up, realizes the accurate control of tiny flow quantity
System.Then flow enters back into second flow window structure, and each second flow group of windows mutually staggers in the height direction, realizes
Each height change can play adjustment effect to flow.Tiny flow quantity is adjusted by spool and sleeve in flow medium
With antihypertensive effect.
The utility model is simple in structure, compact, reasonable, easy to maintenance, stable and reliable in work；Improve flow-rate adjustment model
It encloses, can be segmented and tiny flow quantity is accurately controlled.
Claims (3)
1. a kind of big regulating ratio single seat pressure reducing valve, including sleeve（1）, valve seat（2）, valve rod（3）And spool（4）, it is characterized in that：Valve
Seat（2）Upper end branch sleeve（1）, sleeve（1）It is interior to be equipped with valve chamber（5）, valve rod（3）It is slidably connected at valve chamber（5）In, valve rod（3）
Lower end connects spool（4）, spool（4）Stretch into valve seat（2）In；Sleeve（1）It is equipped with first flow window on side wall successively from the bottom up
Mouth structure and second flow window structure, first flow window structure include at least one first flow window（6）, first flow
Window（6）Aperture becomes larger from the bottom up；Second flow window structure includes multiple along sleeve（1）Circumferencial direction uniformly divides
The second flow group of windows of cloth, each second flow group of windows mutually stagger in the height direction, each second flow group of windows
Including multiple second flow windows being equally spaced from top to bottom（7）.
2. big regulating ratio single seat pressure reducing valve as described in claim 1, it is characterized in that：The first flow window（6）For water droplet
Shape structure.
3. big regulating ratio single seat pressure reducing valve as described in claim 1, it is characterized in that：The second flow window（7）For circular hole
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678644.1U CN207539347U (en) | 2017-12-05 | 2017-12-05 | Big regulating ratio single seat pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678644.1U CN207539347U (en) | 2017-12-05 | 2017-12-05 | Big regulating ratio single seat pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207539347U true CN207539347U (en) | 2018-06-26 |
Family
ID=62617208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721678644.1U Active CN207539347U (en) | 2017-12-05 | 2017-12-05 | Big regulating ratio single seat pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207539347U (en) |
-
2017
- 2017-12-05 CN CN201721678644.1U patent/CN207539347U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |