CN202690020U

CN202690020U - High-pressure difference composite valve core throttle valve

Info

Publication number: CN202690020U
Application number: CN 201220312235
Authority: CN
Inventors: 黄河
Original assignee: Shanghai Meizuan Equipment Chengtao Co Ltd
Current assignee: Shanghai Meizuan Equipment Chengtao Co Ltd
Priority date: 2012-06-30
Filing date: 2012-06-30
Publication date: 2013-01-23
Anticipated expiration: 2022-06-30

Abstract

The utility model relates to a high-pressure difference composite valve core throttle valve comprising a valve body and a valve cover. A hand wheel connection valve rod outside the valve body straightly extends into the valve body; a valve core located on a valve seat further is arranged in the valve body and is characterized in that the valve core consists of a valve core base and at least one valve core sleeve; through holes of fluid outlets are axially arranged on the valve core base, and through holes of fluid inlets are radially arranged on the valve core base; the valve core sleeve is fixedly arranged at the through holes of the fluid inlets of the valve core base; throttle through holes which are arranged uniformly and through which the fluid flows are arranged on the side wall of the valve core sleeve. The high-pressure difference composite valve core throttle valve has the advantages that the throttle stage is reduced, the technological process is simplified, the manufacturing cost is reduced, and the demand of user on the production flow and the pressure of gas wells can be achieved.

Description

The compound spool choke valve of High Pressure Difference

Technical field

The utility model relates to the choke valve in a kind of oil exploration equipment, relates in particular to a kind of choke valve that is equipped with the compound spool of High Pressure Difference.

Background technology

Choke valve of the present invention belongs to the device that is installed in the production tree production wing in the oil exploration equipment, plays the effect that the control Oil/gas Well is produced flow and pressure.In the prior art, use the choke valve of conventional spool, the chock pressure difference of each choke valve is 15～29MPa, as realizing the pressure reduction of 94Mpa, generally needs 4～6 choke valve reducing pressure by regulating flows, and again because choke manifold is intricate, so manufacturing cost is very high.

Summary of the invention

Technical problem to be solved in the utility model is to overcome existing defective in the above-mentioned prior art, and a kind of choke valve with compound spool of applicable High Pressure Difference is provided.

The utility model has adopted following technical proposal to solve its technical problem: the compound spool choke valve of a kind of High Pressure Difference, comprise valve body and valve gap, handwheel outside valve body connects valve rod and extends in the valve body always, also be equipped with the spool that is located on the valve seat in this valve body, it is characterized in that: described spool is made of valve core base and at least one valve core housing, this valve core base axially has the through hole of fluid issuing, radially have the through hole of fluid inlet, valve core housing is fixedly installed on the through hole of valve core base fluid inlet, is equipped with the uniform throttling through hole that fluid is passed through on this valve core housing sidewall.

The beneficial effects of the utility model are to have reduced throttling progression, have simplified technological process, have reduced manufacturing cost, can satisfy the user produces flow and pressure to gas well requirement.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model valve core structure schematic diagram;

Fig. 3 is the utility model the first valve core housing structural representation;

Fig. 4 be among Fig. 3 A-A, C-C to sectional view;

Fig. 5 be among Fig. 3 B-B to sectional view;

Fig. 6 is the utility model second valve core retainer plate structural representation;

Fig. 7 be among Fig. 6 D-D, F-F to sectional view;

Fig. 8 be among Fig. 6 E-E, G-G to sectional view.

Each sequence number is expressed as respectively among the figure:

1-valve body;	The 2-valve gap;	3-handwheel;
			4-valve rod;	The 5-spool;	The 6-valve seat;
5.1-valve core base	5.2 the-the first valve core housing;	5.21-throttling through hole;
			5.3-second valve core retainer plate;	5.31-throttling through hole.	?

The specific embodiment

The utility model will be further described below in conjunction with embodiment and accompanying drawing.

With reference to Fig. 1, the compound spool choke valve of a kind of High Pressure Difference described in the utility model comprises valve body 1 and valve gap 2, and the handwheel 3 outside valve body 1 connects valve rod 4 and extends in the valve body 1 always, also be equipped with the spool 5 that is located on the valve seat 6 in this valve body 1, the aperture that operation handwheel 3 can control valve.

Spool 5 described in the utility model is made of valve core base 5.1 and at least one valve core housing.This valve core base 5.1 axially has the through hole of fluid issuing, radially has the through hole of fluid inlet, and valve core housing is fixedly installed on the through hole of valve core base 5.1 fluid inlets, is equipped with the uniform throttling through hole that fluid is passed through on this valve core housing sidewall.

With reference to Fig. 2, the utility model is equipped with respectively the first valve core housing 5.2 and 5.3 two valve core housings of second valve core retainer plate with described spool 5, the first valve core housing 5.2 is set in outside the second valve core retainer plate 5.3, be equipped with the gap between the first valve core housing 5.2 inwalls and second valve core retainer plate 5.3 outer walls, be equipped with the gap between the first valve core housing 5.2 outer walls and valve core base 5.1 inwalls.

With reference to Fig. 3, Fig. 4 and Fig. 5, axially be equipped with three cribbing openings 5.21 on described the first valve core housing 5.2.45 degree that are spaced apart of throttling through hole 5.21 and throttling through hole 5.21 among every row, two adjacent throttling through holes 5.21 on the two adjacent rows be spaced apart 22.5 degree.Throttling through hole 5.21 diameters on described the first valve core housing 5.2 of the present embodiment are 8～10 millimeters.

With reference to Fig. 6, Fig. 7 and Fig. 8, axially be equipped with four cribbing openings 5.31 on the described second valve core retainer plate 5.3.45 degree that are spaced apart of throttling through hole 5.31 and throttling through hole 5.31 among every row, two adjacent throttling through holes 5.31 on the two adjacent rows are spaced apart 22.5 degree.Throttling through hole 5.31 diameters on the described second valve core retainer plate 5.3 of the present embodiment are 6～9 millimeters.

The utility model has adopted runner complexity, the numerous compound spool of multilayer socket type of throttling number of openings.Fluid in each throttling through hole all the generating unit partial pressure fall, when Pressure Drop occured, flow velocity maintained acceptable reasonable level, the quantity of throttling through hole, flow area are by avoiding producing the desired flow velocity of high sound pressure level and pressure drop is determined.The utility model realizes that the two-stage chock pressure difference is 94Mpa.In actual applications, two High Pressure Difference choke valve series connection are used, the pressure reduction that first choke valve is realized is 119-69=50MPa, the pressure reduction of second choke valve realization is 69-25=44Mpa, when gas well is exploited the later stage, well head pressure drops to numerical value 69MPa when following, and two choke valves can be for subsequent use each other, and its structure satisfies gas well high flow capacity High Pressure Difference and falls characteristics.

Claims

1. compound spool choke valve of High Pressure Difference, comprise valve body and valve gap, handwheel outside valve body connects valve rod and extends in the valve body always, also be equipped with the spool that is located on the valve seat in this valve body, it is characterized in that: described spool is made of valve core base and at least one valve core housing, this valve core base axially has the through hole of fluid issuing, radially have the through hole of fluid inlet, valve core housing is fixedly installed on the through hole of valve core base fluid inlet, is equipped with the uniform throttling through hole that fluid is passed through on this valve core housing sidewall.

2. the compound spool choke valve of High Pressure Difference according to claim 1, it is characterized in that: described spool is equipped with two valve core housings, the first valve core housing is set in outside the second valve core retainer plate, be equipped with the gap between the first valve core housing inwall and the second valve core retainer plate outer wall, be equipped with the gap between the first valve core housing outer wall and the valve core base inwall.

3. the compound spool choke valve of High Pressure Difference according to claim 2 is characterized in that: axially be equipped with three cribbing openings on described the first valve core housing, axially be equipped with four cribbing openings on the described second valve core retainer plate.

4. the compound spool choke valve of High Pressure Difference according to claim 3, it is characterized in that: on described the first valve core housing among every row throttling through hole and throttling through hole be spaced apart 45 degree, on the described second valve core retainer plate among every row being spaced apart of throttling through hole and throttling through hole 45 spend.

5. it is characterized in that according to claim 3 or the compound spool choke valve of 4 described High Pressure Difference: two adjacent throttling through holes on the described valve core housing sidewall on the two adjacent rows are spaced apart 22.5 degree.

6. the compound spool choke valve of High Pressure Difference according to claim 2 is characterized in that: the above throttling through-hole diameter of the first valve core housing is 8～10 millimeters, and the above throttling through-hole diameter of second valve core retainer plate is 6～9 millimeters.