CN206888951U - Low twisted plug valve and interior blowout hookup - Google Patents
Low twisted plug valve and interior blowout hookup Download PDFInfo
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- CN206888951U CN206888951U CN201720854990.4U CN201720854990U CN206888951U CN 206888951 U CN206888951 U CN 206888951U CN 201720854990 U CN201720854990 U CN 201720854990U CN 206888951 U CN206888951 U CN 206888951U
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Abstract
The utility model provides a kind of low twisted plug valve, it is related to oil-well drilling equipment technical field, the low twisted plug valve includes valve body, upper valve base, lower valve base are provided with the valve body and positioned at valve plug between the two, the inner via hole for being used for fluid and passing through being sequentially communicated is provided with the upper valve base, the lower valve base and the valve plug, the valve plug and the upper valve base and the lower valve base are rotatablely connected；The outer valve rod stretched out outside the valve body is connected with the valve plug, drives the valve plug to rotate by the outer valve rod；Spring is provided between the valve body and the upper valve base and/or the lower valve base, the telescopic direction of the spring is consistent with the bearing of trend of the inner via hole.The low twisted plug valve of the application, solve the driving torque of plug valve in the prior art greatly and the technical problem of heavy wear occur too early.The utility model additionally provides a kind of interior blowout hookup for including above-mentioned low twisted plug valve.
Description
Technical field
Oil-well drilling equipment technical field is the utility model is related to, more particularly, to a kind of low twisted plug valve.This practicality is new
Type further relates to a kind of interior blowout hookup with above-mentioned low twisted plug valve.
Background technology
Plug valve is a kind of straight-through valve of high-speed switch, including valve body and position valve plug in the inner, on valve plug and valve body
It is provided with passway.By 90 degree of rotation valve plug, the passway on valve plug is communicated or is separated with the passway on valve body with
Realization is turned on and off.
During oil, gas drilling, plug valve is essential interior jet-preventing tool.Plug valve is mainly used in
During existing blowout, drilling channel is closed by it in time, combined with wellhead blowout preventor, forms one of blowout prevention protecting wall.Plug valve is made
One of interior jet-preventing tool for well control system, it is upper and lower to be mainly installed on raised platform around a well kelly bar, or is installed in top drives.When there is well
When spray or well kick, energy manual operation in time is to close drill string passage, with jet-preventing tool in underground and wellhead blowout preventor one
Rise, one of security protection screen account is formed, to ensure drilling safety.In operating at the scene, also often using switch when making up a joint
The plug valve being disposed below solves the problems, such as mud splashing, therefore the frequency of use of the plug valve of this opening position is very high.
However, conventional plug valve has the problem of driving torque is big, particularly in off position, the situation of pressure is deposited in inside
Lower valve interior sealing element compressive deformation and frictional resistance are very big, so that can not be again turned on, this causes accident well site to recover safe shape
Want pressure release highly difficult after state, and increase well control risk.In addition, on the basis of above mentioned problem, through often going out after multiple switching
Existing clamping stagnation or poorly sealed situation, therefore the easy too early abrasion of conventional valve interior sealing element, are at this moment such as continuing with, it
It will can not play a part of blowout prevention protection.To sum up, it is big how to solve the driving torque of plug valve, and occurs serious mill too early
Damage, is always those skilled in the art's urgent problem to be solved.
Utility model content
The purpose of this utility model is to provide a kind of low twisted plug valve, to alleviate plug valve present in prior art
Driving torque is big and the technical problem of heavy wear occurs too early.Another object of the present utility model, which is to provide in one kind, prevents
Spray apparatus.
Low twisted plug valve provided by the utility model, including valve body, upper valve base, lower valve base and position are provided with the valve body
In be provided with valve plug between the two, the upper valve base, the lower valve base and the valve plug be sequentially communicated be used for fluid
The inner via hole passed through, the valve plug and the upper valve base and the lower valve base are rotatablely connected；It is connected with and stretches on the valve plug
The outer valve rod gone out outside the valve body, the valve plug is driven to rotate by the outer valve rod；The valve body and the upper valve base and/
Or spring is provided between the lower valve base, the telescopic direction of the spring is consistent with the bearing of trend of the inner via hole.
Further, it is provided between the valve body and the upper valve base and/or the lower valve base for placing spring
Sealing space, one end of the spring is against on the upper valve base and/or the lower valve base, and the other end is against the valve body
It is interior；There is the first sealing ring in the end set of the sealing space, first sealing ring is located at the valve body and the upper valve
Between seat and/or the lower valve base.
Further, in addition to inner valve stem, the inner valve stem are arranged between the valve plug and the outer valve rod, described interior
The both sides of valve rod respectively with the valve plug and the outer valve rod clamping.
Further, the side of inner valve stem is provided with the first projection in the outer valve rod, it is right in the inner valve stem
The first groove, first projection and first groove engaging should be provided with；In the inner valve stem close to the valve plug one
Side is provided with the second projection, and the second groove, second projection and second groove engaging are correspondingly arranged on the valve plug.
Further, the valve body is spirally connected with the upper valve base and/or the lower valve base.
Further, the upper valve base and/or the lower valve base are provided with jump ring away from one end from the valve plug.
Further, the one end of the upper valve base and/or the lower valve base away from the valve plug is provided with adjustment tank.
Further, valve stem sleeve is provided with the outside of the outer valve rod, between the valve stem sleeve and the outer valve rod
And/or the second sealing ring is provided between the valve body and the valve stem sleeve.
Further, the valve plug and the matching surface of the rotation connection of the upper valve base and the lower valve base are coated with
Alloy material.
The low twisted plug valve provided by the utility model, is provided with upper valve base 2 and lower valve base 7, upper valve base in valve body 1
2 and lower valve base 7 be ring-shaped work pieces, upper valve base 2 and lower valve base 7 and the geo-stationary of valve body 1, valve plug and upper valve base 2, lower valve base 7
And valve body 1 is rotatablely connected.During normal drilling well, the central through hole of valve plug connects with upper valve base 2, the endoporus of lower valve base 7, forms one
Unimpeded passage, drilling well liquid energy pass through from the passage；When blowout occurring or during well kick, turn valve plug, make the axis of its inner via hole
Perpendicular to upper valve base 2, the axis of the inner via hole of lower valve base 7, at this moment the passage is blocked by valve plug, and passage is closed, bottom well liquid without
Method is upper, so as to play a part of blowout prevention.
The low twisted plug valve provided by the utility model, is provided between valve body 1 and upper valve base 2 and/or lower valve base 7
Spring 8, the telescopic direction of spring 8 are consistent with the bearing of trend of inner via hole.Under the elastic force effect of spring 8, lower valve base 7 is close to valve
The surface of plug.Existing plug valve, in order to ensure its sealing, the fit clearance of valve plug and the valve seat at both ends is subtracted as far as possible
It is few., may be once when the pressure of valve plug one end is very big but its moment of torsion when being opened in the case of closing is with pressure is very big
Plug valve just damages after unlatching.The low twisted plug valve of the application, because being provided with spring 8, it is possible to slightly increase valve plug and
The gap of upper valve base 2 and lower valve base 7, so ensure that sealing under normal circumstances, when being opened in the case of closing is with pressure,
Its driving torque is small.
Interior blowout hookup provided by the utility model, including kelly bar and the low twisted plug valve described in any of the above-described, institute
State one end that kelly bar is connected close to the upper valve base；The valve plug is spherical, and the upper valve base and the valve body are spirally connected, institute
State and the spring is provided with lower valve base.
Because low twisted plug valve has above-mentioned technique effect, the interior blowout hookup with low twisted plug valve also should be with corresponding
Technique effect.
Based on this, the utility model has the advantages of small driving torque and good airproof performance than original technology.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation when low twisted plug valve is closed；
Fig. 2 is structural representation when low twisted plug valve is opened；
Fig. 3 is the front view of the upper valve base of low twisted plug valve；
Fig. 4 is the left view of the upper valve base of low twisted plug valve；
Fig. 5 is the front view of the inner valve stem of low twisted plug valve；
Fig. 6 is the left view of the inner valve stem of low twisted plug valve；
Fig. 7 is the top view of the inner valve stem of low twisted plug valve；
Fig. 8 is the front view of the outer valve rod of low twisted plug valve；
Fig. 9 is the left view of the outer valve rod of low twisted plug valve；
Figure 10 is the top view of the outer valve rod of low twisted plug valve；
Figure 11 is the front view of the valve ball of low twisted plug valve；
Figure 12 is the left view of the valve ball of low twisted plug valve.
Mark：1- valve bodies；2- upper valve bases；3- valve balls；4- valve stem sleeves；The outer valve rods of 5-；6- inner valve stems；7- lower valves
Seat；8- springs；11- jump rings；12nd, the sealing rings of 13- the 3rd；14th, the sealing rings of 15- second；16th, the sealing rings of 17- first.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, such as occur term " " center ", " on ", " under ", " left side ",
" right side ", " vertical ", " level ", " interior ", " outer " etc., orientation or position relationship indicated by it be based on orientation shown in the drawings or
Position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, such as there is term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or implying relative
Importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term such as occurs in description of the present utility model
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State concrete meaning of the term in the utility model.
Embodiment one
As shown in Fig. 1-Figure 12, a kind of low twisted plug valve is provided in the present embodiment, and the low twisted plug valve includes valve
Body 1, upper valve base 2, lower valve base 7 are provided with and positioned at valve plug between the two, the upper valve base 2, the lower valve in the valve body 1
The inner via hole passed through for fluid, the valve plug and the upper valve base 2 and the lower valve base 7 are correspondingly arranged in seat 7 and valve plug
It is rotatablely connected；The outer valve rod 5 stretched out outside the valve body 1 is connected with the valve plug, is driven by the outer valve rod 5 described
Valve plug rotates；Spring 8 is provided between the valve body 1 and the upper valve base 2 and/or the lower valve base 7, the spring 8
Telescopic direction is consistent with the bearing of trend of the inner via hole.
The low twisted plug valve provided by the utility model, is provided with upper valve base 2 and lower valve base 7, upper valve base in valve body 1
2 and lower valve base 7 be ring-shaped work pieces, upper valve base 2 and lower valve base 7 and the geo-stationary of valve body 1, valve plug and upper valve base 2, lower valve base 7
And valve body 1 is rotatablely connected.During normal drilling well, the central through hole of valve plug connects with upper valve base 2, the endoporus of lower valve base 7, forms one
Unimpeded passage, drilling well liquid energy pass through from the passage；When blowout occurring or during well kick, turn valve plug, make the axis of its inner via hole
Perpendicular to upper valve base 2, the axis of the inner via hole of lower valve base 7, at this moment the passage is blocked by valve plug, and passage is closed, bottom well liquid without
Method is upper, so as to play a part of blowout prevention.
The low twisted plug valve provided by the utility model, is provided between valve body 1 and upper valve base 2 and/or lower valve base 7
Spring 8, the telescopic direction of spring 8 are consistent with the bearing of trend of inner via hole.Under the elastic force effect of spring 8, lower valve base 7 is close to valve
The surface of plug.Existing plug valve, in order to ensure its sealing, the fit clearance of valve plug and the valve seat at both ends is subtracted as far as possible
It is few., may be once when the pressure of valve plug one end is very big but its moment of torsion when being opened in the case of closing is with pressure is very big
Plug valve just damages after unlatching.The low twisted plug valve of the application, because being provided with spring 8, it is possible to slightly increase valve plug and
The gap of upper valve base 2 and lower valve base 7, so ensure that sealing under normal circumstances, when being opened in the case of closing is with pressure,
Its driving torque is small.
Preferably, the profile of the valve plug is in spherical.The profile of certain valve plug can be in cone or cylinder
Shape, in the protection domain of the application.
Preferably, the spring 8 is provided only between the valve body 1 and upper valve base 2, or, it is provided only on the valve
Between body 1 and lower valve base 7.It is that order is arranged successively due to upper valve base 2, lower valve base 7 and positioned at valve plug between the two, therefore
It is that may be implemented in the effect that moment of torsion is reduced while ensureing sealing only to set a spring 8.
In the alternative of the present embodiment, set between the valve body 1 and the upper valve base 2 and/or the lower valve base 7
There is the sealing space for placing spring 8, one end of the spring 8 is against on the upper valve base 2 and/or the lower valve base 7, separately
One end is against in the valve body 1；There is the first sealing ring in the end set of the sealing space, first sealing ring is located at institute
State between valve body 1 and the upper valve base 2 and/or the lower valve base 7.
The structure of sealing space for placing spring 8 can be the cell body of cylindricality or the cell body of annular.For
Placing the sealing space of spring 8 can be arranged on upper valve base 2 and/or lower valve base 7, can also be arranged in valve body 1.Sealing
The end set in space has the first sealing ring, and the first sealing ring is between valve body 1 and upper valve base 2 and/or the lower valve base 7.
From it, circumferentially protection spring 8, the first sealing ring protect spring 8 to sealing space from end (namely its axial direction), and spring 8 is sealing
Under the protection of space and the first sealing ring, drilling mud can not touch spring 8, it is not corroded, and improve spring 8
Service life.
Preferably, the both ends of the sealing space are respectively arranged with first sealing ring.
In the alternative of the present embodiment, in addition to inner valve stem 6, the inner valve stem 6 is arranged on the valve plug and described outer
Between valve rod 5, the both sides of the inner valve stem 6 respectively with the valve plug and the clamping of outer valve rod 5.
The both sides of inner valve stem 6 with valve plug and the clamping of outer valve rod 5, equivalent to one universal joint of inner valve stem 6, connect outer valve respectively
Moment of torsion transmission between bar 5 and valve plug, when rotating outer valve rod 5, if the axis of outer valve rod 5 and valve plug has micro dislocation,
Can be adjusted by inner valve stem 6, be unlikely to rotate clamping stagnation or moment of torsion it is excessive and turn it is motionless.
Further, the side of inner valve stem 6 is provided with the first projection in the outer valve rod 5, in the inner valve stem 6
It is correspondingly arranged on the first groove, first projection and first groove engaging；In the inner valve stem 6 close to the valve plug
Side is provided with the second projection, and the second groove, second projection and the second groove card are correspondingly arranged on the valve plug
Close.Projection cube structure and groove structure handling ease, larger moment of torsion can be also transmitted in clamping.
In the alternative of the present embodiment, the valve body 1 is spirally connected with the upper valve base 2 and/or the lower valve base 7.
A kind of structure that valve body 1 is spirally connected with upper valve base 2 and/or lower valve base 7 is：In the endoporus of valve body 1, internal thread is set,
The outside of upper valve base 2 and/or lower valve base 7 sets external screw thread.Upper valve base 2 and/or lower valve base 7 are arranged in the endoporus of valve body 1.It is logical
The axial location of threaded adjusting upper valve base 2 and/or lower valve base 7 in valve body 1 is crossed, makes upper valve base 2 and/or lower valve base 7 and valve plug
Fitting, and control valve plug is located just at the axis centre of outer valve rod 5, so as to further improve fit precision, makes the frictional resistance of valve plug
It is smaller, rotate more flexible.
Further, the upper valve base 2 and/or the lower valve base 7 are provided with jump ring 11 away from one end from the valve plug.
Jump ring 11 is used to carry out axial restraint to upper valve base 2 and/or lower valve base 7.
Further, in the upper valve base 2 and/or the lower valve base 7, one end away from the valve plug is provided with adjustment tank.
Adjustment tank is used to make tool card live in valve seat 2 and/or lower valve base 7, and upper valve base 2 and/or the lower valve base 7 are tightened in into valve body
In 1, and the structure do not damaged inside valve body 1.
In the alternative of the present embodiment, the outside of the outer valve rod 5 is provided with valve stem sleeve 4, in the He of valve stem sleeve 4
The second sealing ring is provided between the outer valve rod 5 and/or between the valve body 1 and the valve stem sleeve 4.Valve stem sleeve 4 is used to keep away
Exempt from outer valve rod 5 directly to contact with valve body 1, difficulty is rotated after producing corrosion.Second sealing ring is used for sealed valve body 1 and valve stem sleeve 4
Between and/or the sealing between valve stem sleeve 4 and outer valve rod 5.
In the alternative of the present embodiment, the valve plug is matched somebody with somebody with the rotation connection of the upper valve base 2 and the lower valve base 7
Close surface and be coated with alloy material.
Embodiment two
The interior blowout hookup that the present embodiment provides, the technical scheme described by embodiment one fall within the embodiment,
The technical scheme that embodiment one has been described above is not repeated to describe.
A kind of interior blowout hookup, including kelly bar and any described low torsion of embodiment one are provided in the present embodiment
Plug valve, the kelly bar are connected close to one end of the upper valve base；The valve plug is spherical, the upper valve base and the valve
Body is spirally connected, and the spring is provided with the lower valve base.
Further, the 3rd sealing ring is additionally provided between upper valve base and the valve body.Preferably, the 3rd sealing ring
Two are set, respectively positioned at the both ends of the upper valve base, two positions of the 3rd sealing ring 12 and 13 as shown in Figure 2.
Specifically, a kind of embodiment of the interior blowout hookup is：
The one end for now providing low twisted plug valve connection kelly bar is upper end, and the other end is lower end.Low twisted plug valve connection side
One end of drilling rod is also referred to as box end in the art, and the other end is pin end.
As shown in Fig. 1-Figure 12, the valve plug external form of low twisted plug valve is in spherical, is provided centrally with a manhole A and (is scheming
Shown in 11).Spherical valve plug is referred to as valve ball in following narration.Lower valve base 7 is a ring-shaped work pieces, is pacified on the step of its underpart
Equipped with spring 8, under the effect of the elastic force of spring 8, lower valve base 7 is close to the surface of valve ball 3；Upper valve base 2 and a ring-shaped work pieces, its lower end
Face is bonded with valve ball 3.
As Figure 1-Figure 2, lower valve base 7 is arranged on for placing the sealing space of spring, is spring eye.Lower valve base 7
It is cylindrical to set in step-like, its it is large and small it is cylindrical on the first sealing ring 16 and 17 is installed, be provided with and be used on in-between step surface
The spring eye of spring 8 is installed.So, in the presence of the first sealing ring 16,17, drilling mud cannot be introduced into interior at spring 8
In chamber, and then ensure that spring 8 is not corroded by mud, improve the service life of spring.In addition, hole end surface in the top of lower valve base 7
Set tapered, sealed with valve ball 3.
As Figure 1-Figure 2, the outer outside of valve rod 5 is provided with valve stem sleeve 4, and the second sealing ring is provided with the lateral aperture of valve body 1
14, meanwhile, the endoporus of valve stem sleeve 4 is provided with the second sealing ring 15.It can so avoid outer valve rod 5 from directly being contacted with valve body 1, produce
Getting rusty, it is difficult to be rotated after losing.Further, valve stem sleeve 4 can use stainless steel, its own more difficult corrosion.
As Figure 1-Figure 2, it is provided with inner valve stem 6 between outer valve rod 5 and valve ball 3.As Figure 8-Figure 10, outer valve rod
5 lower end surfaces are provided with the first projection F；As shown in Figure 5-Figure 7, the both ends of the surface of inner valve stem 6 are respectively arranged with the first groove E1 and
Two projection E2, E1 are vertical with E2；As shown in Figure 11-Figure 12, valve ball 3 is provided with the second groove C.During assembling, outer valve rod 5 it is convex
The block F and groove E1 of inner valve stem 6 coordinates, the projection E2 of inner valve stem 6 and valve ball 3 groove C coordinate.So, inner valve stem 6 equivalent to
One universal joint, the moment of torsion transmission between outer valve rod 5 and valve ball 3 is connected, when rotating outer valve rod 5, if outer valve rod 5 and valve ball
When 3 axis have micro dislocation, can be adjusted by inner valve stem 6, be unlikely to rotate clamping stagnation or moment of torsion it is excessive and turn it is motionless.
As Figure 3-Figure 4, the cylindrical setting external screw thread of upper valve base 2, its end set have adjustment tank D, and its lower end endoporus is in
Taper；The endoporus of valve body 1 is provided with internal thread, and upper valve base 2 is installed on the endoporus of valve body 1.When assembling and adjustment, instrument blocks
Adjustment tank D makes its cone-shaped inner hole compress valve ball 3 to tighten upper valve base 2, meanwhile, by threaded adjusting upper valve base 2 in valve body 1
Axial location, upper valve base 2 is bonded with valve ball 3, and control valve ball 3 to be located just at the axis centre of outer valve rod 5, so as to enter one
Step improves control accuracy, and rotating valve ball 3, more flexible, frictional resistance is smaller.
The equal surfacing specialty alloy materials of the sphere of valve ball 3, the conical seal (contact) face of upper valve base 2, the conical seal (contact) face of lower valve base 7,
The alloy material has the characteristics that corrosion-resistant, erosion resistance, high rigidity, low-friction coefficient and is not easily cracked.In the closed mode of valve ball 3
In the case of building the pressure, very big extruding force between upper valve base 2 and valve ball 3, lower valve base 7 and valve ball 3 be present, due to surface alloying layer
High rigidity feature, is not susceptible to local deformation, so as to be easier to the rotation of valve ball 3；Simultaneously as the alloy material of sealing surfaces
The features such as corrosion-resistant, erosion resistance, increase its service life, reliability and the stabilizer increase of switch.
As shown in Figure 11-Figure 12, valve ball 3 sets 2 radial direction through hole B1, B3, when valve is closed situation about building the pressure
Under, make to surround high-pressure medium around valve ball 3, now valve ball 3 is in a balance system, and the one side for reducing valve ball 3 is high
Pressure surface accumulates, so as to reduce its deflection and driving torque.
The optimization of several key technology points, low twisted plug valve provided by the utility model can realize that the life-span significantly carries more than
Height, in the case where closing builds the pressure 60-70MPa, also can one man operation opened.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of low twisted plug valve, including valve body, it is characterised in that upper valve base, lower valve base are provided with the valve body and is located at
Valve plug between the two, leading to for fluid of being sequentially communicated is provided with the upper valve base, the lower valve base and the valve plug
The inner via hole crossed, the valve plug and the upper valve base and the lower valve base are rotatablely connected；Stretching is connected with the valve plug
Outer valve rod outside the valve body, the valve plug is driven to rotate by the outer valve rod；In the valve body and the upper valve base and/or
Spring is provided between the lower valve base, the telescopic direction of the spring is consistent with the bearing of trend of the inner via hole.
2. low twisted plug valve according to claim 1, it is characterised in that in the valve body and the upper valve base and/or institute
The sealing space being provided between lower valve base for placing spring is stated, one end of the spring is against the upper valve base and/or institute
State on lower valve base, the other end is against in the valve body；There is the first sealing ring in the end set of the sealing space, described first
Sealing ring is between the valve body and the upper valve base and/or the lower valve base.
3. low twisted plug valve according to claim 1, it is characterised in that be also arranged on including inner valve stem, the inner valve stem
Between the valve plug and the outer valve rod, the both sides of the inner valve stem respectively with the valve plug and the outer valve rod clamping.
4. low twisted plug valve according to claim 3, it is characterised in that set in the outer valve rod close to the side of inner valve stem
The first projection is equipped with, the first groove, first projection and first groove engaging are correspondingly arranged in the inner valve stem；
The side of the valve plug is provided with the second projection in the inner valve stem, the second groove, institute are correspondingly arranged on the valve plug
State the second projection and second groove engaging.
5. low twisted plug valve according to claim 1, it is characterised in that the valve body and the upper valve base and/or described
Lower valve base is spirally connected.
6. low twisted plug valve according to claim 5, it is characterised in that the upper valve base and/or the lower valve base are remote
One end of the valve plug is provided with jump ring.
7. low twisted plug valve according to claim 6, it is characterised in that remote in the upper valve base and/or the lower valve base
One end from the valve plug is provided with adjustment tank.
8. low twisted plug valve according to claim 1, it is characterised in that be provided with valve rod on the outside of the outer valve rod
Set, the second sealing ring is provided between the valve stem sleeve and the outer valve rod and/or between the valve body and the valve stem sleeve.
9. the low twisted plug valve according to claim any one of 1-8, it is characterised in that the valve plug and the upper valve base
Alloy material is coated with the matching surface of the rotation connection of the lower valve base.
10. a kind of interior blowout hookup, it is characterised in that including the low twisted plug described in kelly bar and claim any one of 1-9
Valve, the kelly bar are connected close to one end of the upper valve base；The valve plug is spherical, the upper valve base and the valve body spiral shell
Connect, the spring is provided with the lower valve base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854990.4U CN206888951U (en) | 2017-07-14 | 2017-07-14 | Low twisted plug valve and interior blowout hookup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720854990.4U CN206888951U (en) | 2017-07-14 | 2017-07-14 | Low twisted plug valve and interior blowout hookup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206888951U true CN206888951U (en) | 2018-01-16 |
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ID=61296423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720854990.4U Expired - Fee Related CN206888951U (en) | 2017-07-14 | 2017-07-14 | Low twisted plug valve and interior blowout hookup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206888951U (en) |
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| CN110094181A (en) * | 2018-01-30 | 2019-08-06 | 东营市创元石油机械制造有限公司 | The efficient plug valve of oil drilling |
| CN112302574A (en) * | 2020-12-04 | 2021-02-02 | 西南石油大学 | Large-drift-diameter blowout-preventing back-pressure valve in hinge type drill column |
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2017
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|---|---|---|---|---|
| CN110094181A (en) * | 2018-01-30 | 2019-08-06 | 东营市创元石油机械制造有限公司 | The efficient plug valve of oil drilling |
| CN109099180A (en) * | 2018-10-10 | 2018-12-28 | 张家港富瑞阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| CN109373009A (en) * | 2018-12-20 | 2019-02-22 | 武汉海王科技有限公司 | A kind of naval vessel ball valve limit switch instruction device |
| CN109373009B (en) * | 2018-12-20 | 2023-09-29 | 武汉海王科技有限公司 | Limit switch indicating device for ship ball valve |
| CN112302574A (en) * | 2020-12-04 | 2021-02-02 | 西南石油大学 | Large-drift-diameter blowout-preventing back-pressure valve in hinge type drill column |
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Effective date of registration: 20181127 Address after: 618399 No. 13, West Zhuhai Road, Guanghan City, Deyang City, Sichuan Province Patentee after: Sichuan Weichuang Petroleum Equipment Manufacturing Co., Ltd. Address before: 257000 Dongying District, Dongying City, Shandong Province Patentee before: Wang Yue |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200714 |
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| CF01 | Termination of patent right due to non-payment of annual fee |