CN2761919Y - Biguiding washing resistant biaction throttle cut-off valve - Google Patents
Biguiding washing resistant biaction throttle cut-off valve Download PDFInfo
- Publication number
- CN2761919Y CN2761919Y CN 200420057228 CN200420057228U CN2761919Y CN 2761919 Y CN2761919 Y CN 2761919Y CN 200420057228 CN200420057228 CN 200420057228 CN 200420057228 U CN200420057228 U CN 200420057228U CN 2761919 Y CN2761919 Y CN 2761919Y
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- valve
- throttling
- window
- sealing
- valve core
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Abstract
The utility model provides a double guiding flushing resistant double acting throttling stopping valve, which is mainly composed of a hand wheel, a supporting frame body, an upper valve cover, a valve rod, a connecting steel ball, a window throttling guide barrel, a throttling valve core, a sealing valve seat, a valve seat of a valve body, the valve body, a lower valve cover, etc. The utility model is characterized in that the throttling valve core is connected with the valve rod by an annular groove and a steel ball, which ensures that the valve core do linear motion up and down in a guide barrel when the valve rod do rotary motion. A sealing valve seat is embedded in the window throttling guide barrel, and the valve core is designed to be a step surface which forms a hard seal and a soft seal in the course of sealing to ensure that a valve can not be flushed when the valve is opened. A throttling position of the throttling valve core adopts the mode that a circular arc-shaped surface is added on a regular triangle. In the course of opening the valve, a throttling position throttles step by step. Simultaneously, the throttling valve core always moves in the window throttling guide barrel and the valve seat of the valve body in the course of opening the valve to realize the reliability of the sealing of the valve and multi-stage throttling. The valve has the function of multi-stage throttling, and also has the function of reliable sealing and flushing resistance.
Description
Technical field:
The utility model relates to a kind of double-action throttling stop valve, and it is specially adapted to industry such as oil, rock gas, liquid gas.
Background technique:
At present, oil, gas industry more application double-action throttling stop valve, valve throttling MEDIA FLOW is out-of-date directly washes away spool, sealing surface of seat but have now, and impurity easily is piled up in sealing surface; Solid particle in the fluid and gas medium are paid sealing and are washed away greatly, easily cause damage, and the traditional 30 ° of throttlings awls of spool of throttling employing, and restriction effect is not obvious.
The model utility content:
The purpose of this utility model is the defective that overcomes the design of above-mentioned throttling stop valve, improves the sealing of valve, strengthens restriction effect, and adopts the balanced type spool design, makes valve open, open lighter, can replace having now throttling stop valve.
The purpose of this utility model is achieved through the following technical solutions:
The anti-double-action throttling stop valve that washes away of a kind of two guiding, it mainly is made up of handwheel, stake body, bonnet, valve rod, connection steel ball, window throttling guide, throttling valve core, seal valve seat, valve body and valve seat, valve body, bottom flange, attachment bolt etc.It is characterized in that:
A. throttling valve core adopts annular groove to be connected with steel ball with valve body, has guaranteed valve rod when rotating, and spool is done upper and lower straight line motion in the throttling guide, has guaranteed the reliability of sealing;
B. seal valve seat embeds in the window throttling guide, and spool design becomes ladder surface, forms hard soft pair of matter sealing during sealing, is not washed away when having guaranteed opening of valves, improves the working life and the sealing of valve;
C. the throttling position of throttling valve core adopts equilateral triangle to add arc surface, throttling step by step in the opening process of valve, throttling action is remarkable, simultaneously in the opening of valves process, throttling valve core is moved in window throttling guide and valve body and valve seat all the time, realize the reliability and the multistage throttle of valve seal, make this valve promptly have the multistage throttle effect, have reliable sealing and anti-souring again.
The utility model also includes following technical characteristics:
Window throttling guide adopts under the situation that does not influence guide intensity, offers window size according to valve port footpath size.
Throttling valve core throttling position adopts equilateral triangle to add arc surface, realizes throttling step by step thereby increase gradually with the area of valve body and valve seat in the opening of valves process.
Compare with existing throttling stop valve, the utlity model has following advantage:
1. throttling valve core adopts annular groove to be connected with steel ball with valve rod, has guaranteed valve rod when rotating, and spool is done the reliability that upper and lower straight line motion has guaranteed sealing in the throttling guide;
2. seal valve seat embeds in the window throttling guide, and spool design becomes ladder surface, forms hard soft pair of matter sealing during sealing, is not washed away when having guaranteed opening of valves, improves the working life and the sealing of valve;
3. the throttling position of throttling valve core adopts equilateral triangle to add arc surface, throttling step by step in the opening process of valve, throttling action is remarkable, simultaneously in the opening of valves process, throttling valve core is moved in window throttling guide and valve body and valve seat all the time, realize the reliability and the multistage throttle of valve seal, make this valve promptly have the multistage throttle effect, have reliable sealing and anti-souring again.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a restriction bit architecture schematic representation of the present utility model.
In the accompanying drawings:
1-handwheel 2-stake body 3-bonnet 4-valve rod 5-connects steel ball 6-window throttling guide 7-throttling valve core 8-seal valve seat 9-valve body and valve seat 10-valve body 11-bottom flange 12--sealing gasket
Embodiment:
As Fig. 1-shown in Figure 2, the anti-double-action throttling stop valve that washes away of a kind of two guiding, it is mainly by bottom flange 11 is installed, the valve body 10 of bonnet 3 is fitted with the upper bracket 2 of rotating nut and is connected in handwheel 1 member such as grade of valve rod 4,10 of bonnet 3 and valve bodies are fixed with guide 6, be equipped with valve seat 9 at guide 6 and 10 of valve bodies, 7 of guide 6 and spools seal with " O " type rubber ring, and spool 7 in guide 6 on, following motion, spool 7 adopts circular groove and steel ball 5 to connect with valve rod 4, seal valve seat 8 is embedded in the guide, valve rod 4 in guide 6 on, following motion, and spool 7 motion in valve seat 9 all the time can be played leading role, be equilateral triangle and arc surface because of the spool Lower Half again, can play throttling action, when medium passes through, change direction, exerted oneself directly washing away thereby keep away to Sealing 8, from throttle orifice by the time throttling step-down effect, the eddy current of generation has also been taken away the impurity on the valve seat 9, has also guaranteed the reliability of sealing.
Claims (2)
1, a kind of pair of anti-double-action throttling stop valve that washes away of guiding type, it is mainly by handwheel (1), stake body (2), bonnet (3), valve rod (4), connect steel ball (5), window throttling guide (6), throttling valve core (7), seal valve seat (8), valve body and valve seat (9), valve body (10), bottom flange (11) is formed, it is characterized in that window throttling guide (6), throttling valve core (7) throttling simultaneously, throttling valve core (7) has the balance aperture, throttling valve core (7), window throttling guide (6) is formed upper chamber, it is big that throttling valve core (7) goes up area, following area is little, sealing surface valve seat (8) embeds in the window throttling guide (6), the spool design ladder surface forms hard soft pair of matter sealing during sealing.
2, according to claim 1 pair of anti-double-action throttling stop valve that washes away of guiding type is characterized in that described double-action multistage throttle can realize by following form:
A, window throttling guide (6) are offered window size according to valve port footpath size;
B, throttling valve core (7) throttling position adopt equilateral triangle to add arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057228 CN2761919Y (en) | 2004-11-16 | 2004-11-16 | Biguiding washing resistant biaction throttle cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057228 CN2761919Y (en) | 2004-11-16 | 2004-11-16 | Biguiding washing resistant biaction throttle cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761919Y true CN2761919Y (en) | 2006-03-01 |
Family
ID=36095045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420057228 Expired - Fee Related CN2761919Y (en) | 2004-11-16 | 2004-11-16 | Biguiding washing resistant biaction throttle cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761919Y (en) |
-
2004
- 2004-11-16 CN CN 200420057228 patent/CN2761919Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20121116 |