CN206496016U - A kind of fracturing valve - Google Patents

Abstract

The utility model discloses a kind of fracturing valve, valve rod including the valve body provided with fluid passage and in valve body perpendicular to fluid passage, valve plate for realizing fluid passage opening and closing, foot piece, valve rod, valve plate and foot piece are sequentially connected, also include the bottom flange being fixedly connected with valve body for the bonnet, being fixedly connected with valve body of spacing valve stem end and for spacing foot piece end, valve plate is located at before fluid passage, rear side is respectively in sealing contact to be combined with valve seat, the equal slip cap in periphery of valve seat is provided with valve seat set, the one end of valve seat set away from valve plate is respectively engaged with valve seal, seal is respectively provided between valve seat and valve seat set.Using said structure design, realize while fracturing valve is normally opened and closed and to isolate from pressure fluid outside valve body cavity, effectively protect the internals such as valve body, valve rod, valve plate, it is to avoid it, which is impacted or corroded by pressure fluid, causes to damage.Simultaneously, it is to avoid frequently greasing is operated, and reduces the maintenance cost of equipment.

Description

A kind of fracturing valve

Technical field

The utility model is related to oil and gas development equipment technical field, more specifically to a kind of fracturing valve.

Background technology

In the intermediary and later stages of oil gas well mining, due to payzone blocking or earth formation so that well head pressure decline,Oil or gas yield are reduced, or new operation oil well to well head, it is necessary to carry out fracturing work, in addition with page combustion gas discovery and openHair is required for carrying out fracturing work, therefore effect of the fracturing work in oil and gas development is protruded very much.

Pressure break shunting sled occupies very important status in numerous fracturing work equipment, can ensure that fracturing work is highThe progress of effect, safety, is the necessary requirement that fracturing work is smoothed out.Fracturing valve is the core building block of pressure break shunting sled,Can it is directly connected to pressure break shunting sled realize being normally carried out for fracturing work, ensure that the safety of pressure break shunting sled is rawProduction, its reliability is directly connected to the reliability of pressure break shunting sled, and its performance is directly connected to pressure break shunting sledPerformance.

In use, often one layer of fracturing work of completion is required for noting fracturing valve conventional fracturing valve at presentFat, in order to avoid subsequent job fracturing sand enters fracturing valve valve pocket, and influences fracturing work, brings very big maintenance cost, increase behaviourThe labor intensity of author, while increasing potential safety hazard for field operation.Meanwhile, valve body cavity is led to fluid in whole operation processRoad keeps connection, and pressure medium is full of whole valve body cavity, causes the damage to the valve rod, valve stem seal of fracturing valve and the corruption of valve bodyErosion, influence valve plate, the free movement of valve seat influence normal switch operation and the life-span of fracturing valve.

In summary, fracturing valve how is efficiently solved fragile in use and the problems such as need frequent maintenance,It is current those skilled in the art's urgent problem.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of fracturing valve, and the structure design of the fracturing valve can haveIt is fragile in use and the problems such as need frequent maintenance that effect ground solves fracturing valve.

In order to achieve the above object, the utility model provides following technical scheme：

A kind of fracturing valve, including the valve body provided with fluid passage and the valve rod in valve body perpendicular to fluid passage, useIn valve plate, the foot piece of realizing fluid passage opening and closing, valve rod, valve plate and foot piece are sequentially connected, in addition to for spacing valve stem endThe bonnet, being fixedly connected with valve body and the bottom flange being fixedly connected with valve body for spacing foot piece end, valve plate is located atThe forward and backward side of fluid passage is respectively in sealing contact to be combined with valve seat, and the equal slip cap in periphery of valve seat is provided with valve seat set, valve seat setOne end away from valve plate is respectively engaged with valve seal, and seal is respectively provided between valve seat and valve seat set.

Preferably, in above-mentioned fracturing valve, valve seat and valve seat set junction respectively be provided with buffering ring, valve plate it is forward and backwardSide is respectively provided with a buffering ring.

Preferably, in above-mentioned fracturing valve, the contact position of valve seat set and valve body is respectively provided with a pair of seal members, valve seat setA pair of seal members is respectively provided with the contact position of valve seat.

Preferably, in above-mentioned fracturing valve, the helmet provided with handwheel is fixedly connected with bonnet, helmet inner containment has canBy the ball-screw of handwheel adjusting position, ball-screw is fixedly connected with valve rod.

Preferably, in above-mentioned fracturing valve, a pair of supporting plates for making valve plate be slid along straight line are installed in valve body.

Preferably, in above-mentioned fracturing valve, bonnet, and bottom flange and valve body are respectively removable by studs and nutUnload connection.

The fracturing valve that the utility model is provided, including the valve body provided with fluid passage and in valve body it is logical perpendicular to fluidThe valve rod in road, the valve plate for realizing fluid passage opening and closing, foot piece, valve rod, valve plate and foot piece are sequentially connected, in addition to for limitingThe bonnet, being fixedly connected with valve body of position valve stem end and the lower valve being fixedly connected with valve body for spacing foot piece endLid, valve plate be located at fluid passage forward and backward side it is respectively in sealing contact be combined with valve seat, the equal slip cap in periphery of valve seat is provided with valveCover for seat, the one end of valve seat set away from valve plate is respectively engaged with valve seal, is respectively provided between valve seat and valve seat setSeal.

During the fracturing valve provided using the utility model, valve plate closed fluid passage is moved by valve rod and foot piece, works as pressureWhen power fluid enters the fluid passage of front side, the high pressure of fluid is pressed into from the gap of valve seat and the junction of valve seat set so thatValve seat and valve seat set are gradually disengaged, and final seat compression valve plate, valve seat set compress valve body so that whole fracturing valve is in fully closed shapeState and pressure fluid is isolated outside valve body cavity.Valve plate is moved by valve rod and foot piece and opens fluid passage, works as pressure fluidInto forward and backward side fluid passage when, the gap press-in for the junction that the high pressure of fluid covers from valve seat and valve seat so that valve seatIt is gradually disengaged with valve seat set, final valve seat compresses the valve body of side before and after the front and rear side of valve plate, valve seat set are compressed respectively so that wholeFracturing valve is shown in a fully open operation and pressure fluid is isolated outside valve body cavity.Using said structure design, pass through corresponding workMake state, isolate from pressure fluid outside valve body cavity while the normal opening and closing for realizing fracturing valve, effectively protect valve body, valveThe internals such as bar, valve plate, it is to avoid it, which is impacted or corroded by pressure fluid, causes to damage.

Meanwhile, the fracturing valve that the utility model is provided frequently is noted because internals will not be damaged easily so as to avoidFat is operated, and is saved the labour of workman, is reduced the maintenance cost of equipment.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior artOr the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are onlyIt is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative workUnder, other accompanying drawings can also be obtained according to these accompanying drawings.

The main view cross-sectional view for the fracturing valve that Fig. 1 provides for the utility model embodiment；

Valve seat, valve seat set and valve plate that Fig. 2 provides for the utility model embodiment are in the partial enlargement knot of full off stateStructure schematic diagram；

The partial enlargement knot that valve seat that Fig. 3 provides for the utility model embodiment, valve seat set and valve plate are shown in a fully open operationStructure schematic diagram.

Marked in accompanying drawing as follows：

Valve body 1, valve rod 2, valve plate 3, foot piece 4, bonnet, 5, bottom flange 6, valve seat 7, valve seat set 8, seal 9, buffering ring10th, helmet 11, handwheel 12, ball-screw 13, supporting plate 14.

Embodiment

The utility model embodiment discloses a kind of fracturing valve, with avoid pressure fluid enter valve body cavity in destruction valve body andIntraware, improves the security that fracturing valve uses process, reduces its maintenance cost.

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried outClearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than wholeEmbodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is madeThe every other embodiment obtained, belongs to the scope of the utility model protection.

Refer to Fig. 1-Fig. 3, the main view cross-sectional view for the fracturing valve that Fig. 1 provides for the utility model embodiment；Valve seat, valve seat set and valve plate that Fig. 2 provides for the utility model embodiment are in the partial enlargement structural representation of full off state；The partial enlargement structural representation that valve seat that Fig. 3 provides for the utility model embodiment, valve seat set and valve plate are shown in a fully open operation.Arrow direction applies direction for the flow direction and its pressure of pressure fluid in figure.

Embodiment of the present utility model provides a kind of fracturing valve, including the valve body 1 provided with fluid passage and positioned at valve body 1The interior valve rod 2 perpendicular to fluid passage, the valve plate 3 for realizing fluid passage opening and closing, foot piece 4, valve rod 2, valve plate 3 and foot piece 4It is sequentially connected, in addition to the bonnet, 5 being fixedly connected with valve body 1 for the spacing end of valve rod 2 and for the spacing end of foot piece 4The bottom flange 6 being fixedly connected with valve body 1 in portion, the forward and backward side that valve plate 3 is located at fluid passage respectively in sealing contact is combined with valveSeat 7, the equal slip cap in periphery of valve seat 7 is provided with valve seat set 8, and valve seat covers 8 one end away from valve plate 3 and respectively connect with the sealing of valve body 1Touch and coordinate, seal 9 is respectively provided between valve seat 7 and valve seat set 8.

During the fracturing valve provided using above-described embodiment, the closed fluid passage of valve plate 3 is moved by valve rod 2 and foot piece 4, whenWhen pressure fluid enters the fluid passage of front side, the high pressure of fluid is pressed into from the gap of valve seat 7 and the junction of valve seat set 8,So that valve seat 7 and valve seat set 8 are gradually disengaged, final valve seat 7 compresses valve plate 3, valve seat set 8 and compresses valve body 1 so that whole fracturing valveIt is isolated in full off state and pressure fluid outside valve body cavity.The unlatching fluid of valve plate 3 is moved by valve rod 2 and foot piece 4 to lead toRoad, when pressure fluid enters the fluid passage of forward and backward side, the high pressure of fluid covers the seam of 8 junction from valve seat 7 and valve seatGap is pressed into so that valve seat 7 and valve seat set 8 are gradually disengaged, and final valve seat 7 compresses the front and rear side of valve plate 3, valve seat set 8 and compressed respectivelyThe valve body 1 of front and rear side so that whole fracturing valve is shown in a fully open operation and pressure fluid is isolated outside valve body cavity.Using above-mentionedStructure design, by corresponding working condition, valve body cavity is isolated from while the normal opening and closing for realizing fracturing valve by pressure fluidOutside, effectively protect the internals such as valve body 1, valve rod 2, valve plate 3, it is to avoid it, which is impacted or corroded by pressure fluid, causes to damageIt is bad.

Meanwhile, the fracturing valve that above-described embodiment is provided frequently is noted because internals will not be damaged easily so as to avoidFat is operated, and is saved the labour of workman, is reduced the maintenance cost of equipment.

In order to optimize the using effect of valve seat 7 and valve seat set 8 in above-described embodiment, the junction that valve seat 7 and valve seat cover 8 is equalBuffering ring 10 is respectively equipped with, the forward and backward side of valve plate 3 is respectively provided with a buffering ring 10.It is preferred that in the connection of valve seat 7 and valve seat set 8Place is respectively provided with buffering ring 10, and the forward and backward side of valve plate 3 is respectively provided with a buffering ring 10 so that valve seat 7 and valve seat set 8 are firstBeginning can be by certain buffer protection when touching pressure fluid, it is to avoid pressure fluid to valve seat 7, valve seat set 8 or the twoSeam crossing cause damage.

In order to further optimize the using effect of valve seat 7 and valve seat set 8 in above-described embodiment, valve seat set 8 and valve body 1 connectTactile position respectively be provided with a pair of seal members 9, valve seat set 8 and valve seat 7 contact position respectively be provided with a pair of seal members 9.It is excellentSelect valve seat cover 8 and the contact position of valve body 1 be respectively provided with a pair of seal members 9, valve seat set 8 and the contact position of valve seat 7 are divided equallyShe You a pair of seal members 9 so that valve seat set 8 is tightly connected relatively reliable, the knot of double containment with valve body 1 and valve seat 7 respectivelyConfiguration formula can be higher each contact position of guarantee sealing effectiveness, while the elastic effect of seal 9 also can be played preferablyOut.

In order to optimize the shield provided with handwheel 12 is fixedly connected with the using effect of valve rod 2 in above-described embodiment, bonnet, 5Cap 11, the inner containment of helmet 11, which has, to be fixed and be connected by the ball-screw 13 of the adjusting position of handwheel 12, ball-screw 13 and valve rod 2Connect.It is preferred that by ball-screw 13 control valve rod 2 and move so that the row of valve rod 2 can obtain more precise and stable controlSystem, the open and-shut mode of strict control valve plate 3.Certainly, the motion control device of valve rod 2 and valve plate 3 is not limited to said structure shapeFormula, other can realize that the structure design of the motion control to valve plate 3 is also allowed, can be flexible according to specific implementation situationSelection.

It is provided with to optimize in the using effect of valve body 1 in above-described embodiment, valve body 1 for making valve plate 3 be slided along straight lineA pair of the supporting plates 14 moved.Valve rod 2 can be moved along a straight line, and certain valve plate 3 can also be moved therewith, however, to ensure that valve plate 3It can not easily be shifted, be preferably provided with valve body 1 for making valve plate 3 along straight line along predetermined linear motion with more stableA pair of supporting plates 14 of sliding.

It is understood that bonnet, 5 and bottom flange 6 are respectively detachably connected with valve body 1 by studs and nutConnect.It is preferred that bonnet, 5 and bottom flange 6 are respectively detachably connected with valve body 1 by studs and nut, then the He of bonnet, 5The annexation of bottom flange 6 and valve body 1 is more consolidated, while dismounting is also convenient for, can be at any time when intraware breaks downMaintenance is changed, in order to avoid delay manufacturing schedule.

The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and otherBetween the difference of embodiment, each embodiment identical similar portion mutually referring to.

It should also be noted that, in this manual, term " comprising ", "comprising" or its any other variant are intended to containLid nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including thoseElement, but also other key elements including being not expressly set out, or also include being this process, method, article or equipmentIntrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded thatAlso there is other identical element in process, method, article or equipment including the key element.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicalityType.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine hereinThe General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.CauseThis, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed hereinThe most wide scope consistent with features of novelty.

Claims (6)

1. a kind of fracturing valve, including the valve body (1) provided with fluid passage and in the valve body (1) it is logical perpendicular to the fluidThe valve rod (2) in road, valve plate (3), foot piece (4), the valve rod (2), the valve plate (3) for realizing the fluid passage opening and closingIt is sequentially connected with the foot piece (4), in addition to being fixedly connected with the valve body (1) for spacing valve rod (2) endBonnet, (5) and the bottom flange (6) being fixedly connected with the valve body (1) for spacing foot piece (4) end, its featureIt is, the forward and backward side that the valve plate (3) is located at the fluid passage respectively in sealing contact is combined with valve seat (7), the valve seat(7) the equal slip cap in periphery be provided with valve seat set (8), the valve seat set (8) away from the valve plate (3) one end respectively with it is describedValve body (1) is in sealing contact to be coordinated, and seal (9) is respectively provided between the valve seat (7) and the valve seat set (8).

2. fracturing valve according to claim 1, it is characterised in that the junction of the valve seat (7) and the valve seat set (8)Buffering ring (10) is respectively provided with, the forward and backward side of the valve plate (3) is respectively provided with a buffering ring (10).

3. fracturing valve according to claim 2, it is characterised in that valve seat set (8) contact with the valve body (1) positionPut and be respectively provided with seal (9) described in a pair, the contact position of the valve seat set (8) and the valve seat (7) is respectively provided withSeal described in a pair (9).

4. fracturing valve according to claim 3, it is characterised in that be fixedly connected with the bonnet, (5) provided with handwheel(12) helmet (11), helmet (11) inner containment has can be by the ball-screw (13) of handwheel (12) adjusting position, instituteBall-screw (13) is stated to be fixedly connected with the valve rod (2).

5. fracturing valve according to claim 4, it is characterised in that be provided with the valve body (1) for making the valve plate(3) a pair of the supporting plates (14) slid along straight line.

6. fracturing valve according to claim 5, it is characterised in that the bonnet, (5) and the bottom flange (6) with it is describedValve body (1) is respectively detachably connected by studs and nut.