CN201963257U - Combined secondary throttling valve - Google Patents
Combined secondary throttling valve Download PDFInfo
- Publication number
- CN201963257U CN201963257U CN2011200903058U CN201120090305U CN201963257U CN 201963257 U CN201963257 U CN 201963257U CN 2011200903058 U CN2011200903058 U CN 2011200903058U CN 201120090305 U CN201120090305 U CN 201120090305U CN 201963257 U CN201963257 U CN 201963257U
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- valve
- plunger
- wedge shape
- lining
- combination
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- Expired - Fee Related
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Abstract
The utility model relates to a combined secondary throttling valve used for a chock manifold and a kill manifold. The combined secondary throttling valve mainly comprises a valve body, a bushing, a cage sleeve, a wedged valve core, a plunger, a valve rod, a valve cap, and the like; the combined secondary throttling valve is technically characterized in that the bushing is installed in a valve body hole, and the cage sleeve is installed at the part of the bushing protruding out the valve body, and is fixed through a cage sleeve positioning barrel and the valve cap; and a valve rod nut is installed on the valve cap, a hand wheel is fixed on the valve rod nut, the valve rod is connected onto the valve rod nut through a thread, the wedged valve core, the plunger and the valve rod are connected in sequence, and sealing rings are installed on both the cage sleeve positioning barrel and the plunger. The combined secondary throttling valve can achieve the purpose of secondary throttling and has the advantages of high erosion resistance and longer service life of the valve core.
Description
Technical field
The utility model relates to a kind of combination two stage choke valve that is used for throttling, kill manifold, belongs to the technical field of control blowout, balanced drilling technology and recovery oil gas well pressure.
Background technology
In the choke valve that uses, mainly contain needle regulator, orifice plate type choke valve, plunger type choke valve and wedge shape choke valve at present.Wherein, needle regulator is prone to strenuous vibration even causes spool to fracture under high-pressure fluid impacts; Orifice plate type choke valve valve plate is stressed greatly, erosion is serious; Plunger type choke valve valve opening and downstream valve body erosion are serious; Existing wedge shape throttle flow rate instability, and the lining erosion is serious.Above-mentioned choke valve is the one-level throttling, and because of there being serious erosion problem, in a single day spool lost efficacy, and choke valve just loses restriction effect, and safety is low.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model spy provides a kind of novel combination type two-step throttle valve, can realize two-step throttle, and structure has strong, the safe characteristics of anti-impact erosion ability, to improve the restriction effect and the functional reliability of choke valve.
In order to achieve the above object, the technical scheme that the utility model head it off is adopted is: a kind of combination two stage choke valve, mainly form by valve body, lining, cage cover, wedge shape valve core, plunger, valve rod, valve gap etc.; Described lining is installed in the valve body hole, and the cage cover is installed in the position that lining protrudes in valve body, and by cage cover positioning tube and valve gap permanent position; Valve stem nut is installed on the valve gap, and handwheel is fixed on the valve stem nut, and on valve stem nut, wedge shape valve core, plunger and valve rod link to each other valve rod successively by thread connection, on cage cover positioning tube and the plunger sealing ring is installed all.
A kind of combination two stage choke valve of the utility model adopts cage cover plunger throttling and two kinds of throttle styles of wedge-shaped bushings throttling, reach the effect of two-step throttle, rotation by valve stem nut, the drive valve rod travels forward, valve rod drives wedge shape valve core and realizes cage cover and plunger throttling and wedge shape and lining throttling, and under the situation that a certain throttling was lost efficacy, still can realize throttling, increase the reliability of system.
A kind of combination two stage choke valve of the utility model adopts bush structure, the lining inner hole section is two pairs of Straight Line and Arc structures, this structure has increased the thickness at the main erosion of lining position, improves the application life of lining, can increase the adjustable extent of wedge shape valve core and lining throttling simultaneously.
A kind of combination two stage choke valve of the utility model adopts wedge shape valve core and piston structure, the wedge shape valve core pole section is two pairs of Straight Line and Arc structures, plunger cross section radius of circle is greater than the radius of pole section circular arc, and this spool design can realize the two-step throttle effect of cage cover plunger, wedge shape valve core and lining.
The utility model compared with prior art, its beneficial effect is: 1, the two-step throttle effect is arranged, can realize plunger throttling of cage cover and the throttling of wedge shape valve core lining simultaneously; 2, when wherein the one-level throttling was lost efficacy, another grade throttling still can normally realize restriction effect, increased the practical security reliability of choke valve; 3, the wedge shape valve core pole section is two pairs of Straight Line and Arc structures, and the throttling range that wedge shape valve core and lining can be regulated increases; 4, the main erosion of lining position thickening, anti-impact erosion ability strengthens.
Description of drawings
Fig. 1 is the structural representation of a kind of combination two stage choke valve of the utility model.
Fig. 2 is the lining cross-sectional view of combination two stage choke valve.
Fig. 3 is the wedge shape valve core of combination two stage choke valve and the structural representation of plunger.
Among the figure, 1 valve body, 2 linings, 3 cage covers, 4 wedge shape valve cores, 5 plungers, 6 cages cover positioning tube, 7 valve stem nuts, 8 valve rods, 9 handwheels, 10 valve gaps, 11 sealing rings.
The specific embodiment
By shown in Figure 1, a kind of combination two stage choke valve, mainly by valve body 1, lining 2, cage cover 3, wedge shape valve core 4, plunger 5, valve rod 8, valve gap 10 compositions such as grade, its architectural feature is: lining 2 is installed in valve body 1 hole, cage cover 3 is installed in the position that lining 2 protrudes in valve body 1, and by cage cover positioning tube 6 and valve gap 10 permanent positions, valve stem nut 7 is installed on the valve gap 10, handwheel 9 is fixed on the valve stem nut 7, valve rod 8 by thread connection on valve stem nut 7, wedge shape valve core 4, plunger 5 links to each other successively with valve rod 8, on cage cover positioning tube 6 and the plunger 5 sealing ring 11 is installed all.
A kind of combination two stage choke valve of the utility model adopts cage to overlap 5 throttlings of 3 plungers and two kinds of throttle styles of wedge shape valve core 4 linings, 2 throttlings, reach the effect of two-step throttle, rotation by valve stem nut 7, driving valve rod 8 travels forward, valve rod 8 drives wedge shape valve core 4 and realizes cage cover 3 and plunger 5 throttlings and wedge shape valve core 4 and lining 2 throttlings with plunger 5 motions, and under the situation that a certain throttling was lost efficacy, still can realize restriction effect, increase the reliability of system.
By shown in Figure 2, a kind of combination two stage choke valve of the utility model adopts the structure of lining 2, lining 2 inner hole sections are two pairs of Straight Line and Arc structures, this structure has increased the thickness at lining 2 main erosion positions, improve the physical life of lining 2, can increase the adjustable extent of wedge shape valve core 4 and lining 2 throttlings simultaneously.
By shown in Figure 3, a kind of combination two stage choke valve of the utility model adopts the structure of wedge shape valve core 4 and plunger 5, wedge shape valve core 4 pole sections are two pairs of Straight Line and Arc structures, plunger 5 cross section radius of circles are greater than the radius of pole section circular arc, and this spool design can realize the two-step throttle effect of cage cover 3 and plunger 5, wedge shape valve core 4 and lining 2.
A kind of operating principle of combination two stage choke valve is: the fluid of upstream valve opening at first overlaps 5 throttlings of 3 plungers through cage, realizes the one-level throttling, enters the throttling that cage cover 2 interior fluids pass through wedge shape valve core 4 and lining 2 more then, realizes two-step throttle; In the throttling process, drive valve stem nut 7 rotations by rotating handwheel 9, rely on screw thread that the rotation of valve stem nut 7 is converted into moving forward and backward of valve rod 8, valve rod 8 drives plungers 6 and wedge shape valve core 4 moves forward and backward to regulate flow.
Claims (4)
1. combination two stage choke valve, mainly form by valve body (1), lining (2), cage cover (3), wedge shape valve core (4), plunger (5), valve rod (8), valve gap (10) etc., it is characterized in that: lining (2) is installed in valve body (1) hole, cage cover (3) is installed in the position that lining (2) protrudes in valve body (1), and by cage cover positioning tube (6) and valve gap (10) permanent position; Valve stem nut (7) is installed on the valve gap (10), handwheel (9) is fixed on the valve stem nut (7), valve rod (8) by thread connection on valve stem nut (7), wedge shape valve core (4), plunger (5) and valve rod (8) link to each other successively, on cage cover positioning tube (6) and the plunger (5) sealing ring (11) are installed all.
2. a kind of combination two stage choke valve according to claim 1 is characterized in that: the throttling position is made up of with wedge shape valve core (4) cage cover (3) and plunger (5), lining (2).
3. a kind of combination two stage choke valve according to claim 1 is characterized in that: lining (2) inner hole section is made up of two pairs of Straight Line and Arc.
4. a kind of combination two stage choke valve according to claim 1, it is characterized in that: the throttling spool position of wedge shape valve core (4) is a wedge shape, arc transition between wedge-shaped segment and horizontal segment, the cylinder cross section at wedge shape position is made up of two pairs of Straight Line and Arc, and the cross circular section radius of plunger (5) is greater than the radius of wedge-shaped part circle of position arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200903058U CN201963257U (en) | 2011-03-31 | 2011-03-31 | Combined secondary throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200903058U CN201963257U (en) | 2011-03-31 | 2011-03-31 | Combined secondary throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963257U true CN201963257U (en) | 2011-09-07 |
Family
ID=44525792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200903058U Expired - Fee Related CN201963257U (en) | 2011-03-31 | 2011-03-31 | Combined secondary throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963257U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392617A (en) * | 2011-10-11 | 2012-03-28 | 西南石油大学 | Multistage throttle valve |
| CN102853094A (en) * | 2012-09-19 | 2013-01-02 | 重庆新泰机械有限责任公司 | Manual wedge-shaped throttle valve |
| CN103321607A (en) * | 2013-07-01 | 2013-09-25 | 西南石油大学 | Double-layer-cage double-plunger cage throttling valve |
| CN111853270A (en) * | 2020-08-06 | 2020-10-30 | 中建环能科技股份有限公司 | Air flow regulating valve |
-
2011
- 2011-03-31 CN CN2011200903058U patent/CN201963257U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392617A (en) * | 2011-10-11 | 2012-03-28 | 西南石油大学 | Multistage throttle valve |
| CN102853094A (en) * | 2012-09-19 | 2013-01-02 | 重庆新泰机械有限责任公司 | Manual wedge-shaped throttle valve |
| CN103321607A (en) * | 2013-07-01 | 2013-09-25 | 西南石油大学 | Double-layer-cage double-plunger cage throttling valve |
| CN111853270A (en) * | 2020-08-06 | 2020-10-30 | 中建环能科技股份有限公司 | Air flow regulating valve |
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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: 20110907 Termination date: 20120331 |