CN105625976B - A kind of oil pipe flow control dirtproof cover - Google Patents
A kind of oil pipe flow control dirtproof cover Download PDFInfo
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- CN105625976B CN105625976B CN201410602045.6A CN201410602045A CN105625976B CN 105625976 B CN105625976 B CN 105625976B CN 201410602045 A CN201410602045 A CN 201410602045A CN 105625976 B CN105625976 B CN 105625976B
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Abstract
The invention discloses a kind of oil pipe flow control dirtproof cover, belong to the underground operation tool technical field of petroleum works.The oil pipe flow control dirtproof cover includes：Oil tube external thread pipe nipple, center connecting plate, hide stream cover, joint baffle seat, pressure difference valve assembly and orientation grip, hide stream mode, the liquid that shoves in oil pipe is entered in pressure difference valve assembly by oil tube external thread pipe nipple, center connecting plate through hole and joint baffle seat, bleed state, the liquid in collecting tank are flowed into oil pipe through pressure difference valve assembly, joint baffle seat, center connecting plate through hole and oil tube external thread pipe nipple.The present invention flows the structure design of cover and center connecting plate by hiding, and has blocked the health facing injection, protect operating personnel of the liquid to operating personnel of shoving in oil pipe；And pass through the structure design of pressure difference valve assembly so that the flow direction of the liquid that shoves changes, and the liquid that avoids shoving outwards spills pollution environment, while avoids the liquid that shoves spilt and cause ground wet and slippery and cause operating personnel to fall the problem of falling.
Description
Technical field
The present invention relates to the underground operation tool technical field of petroleum works, more particularly to a kind of oil pipe flow control dirtproof cover.
Background technology
Oil pipe is petroleum system formation testing, oil recovery, water filling, the common tool of measure stage G.I.H.
When playing oil pipe, if tubing string lower end closed in well, as there are ball-and-seat, pump line post in water injection string lower end without bleeder
Deng can cause have liquid in tubing string, up with tubing string with oil, the liquid based on water, tubing string vibrations and borehole pressure fluctuation can all be led
Liquid in pipe excitement is caused, trigger liquid to gush out tubing coupling and trickle down in the air, cause well head ambient contamination, also harmful operations personnel
Health, in addition can the wet and slippery formation in, ground pleasing to the eye because of dirt fall that potential safety hazard, the winter such as to fall especially serious.
Therefore, it is badly in need of designing a kind of can solve the problem that with the device for more than liquid tubing coupling gushing liquid problem.
The content of the invention
During in order to solve to rise oil pipe in the prior art, exist and more than band liquid tubing coupling gush liquid, cause profit around well head
The problem of polluting, and being damaged to operating personnel's health, the embodiments of the invention provide a kind of oil pipe flow control is antifouling
Cover.The technical scheme is as follows：
A kind of oil pipe flow control dirtproof cover, is arranged on oil pipe, and the oil pipe flow control dirtproof cover is used to prevent in the oil pipe
The liquid that shoves outwards spray, the oil pipe flow control dirtproof cover include oil tube external thread pipe nipple, center connecting plate, hide stream cover, joint
Apron block, pressure difference valve assembly and orientation grip,
The oil tube external thread pipe nipple inner hollow, the oil tube external thread pipe nipple are used to connect the oil pipe,
The center connecting plate is arranged on above the oil tube external thread pipe nipple, and the center connecting plate connects provided with center
Fishplate bar through hole, the center connecting plate through hole connect with oil tube external thread pipe nipple inside,
It is described hide stream the enclosure outside the center connecting plate, it is described hide stream cover through the center connecting plate be divided into top and
Bottom, the top and the center connecting plate form collecting tank, the lower cover outside the oil tube external thread pipe nipple,
The joint baffle seat is arranged on the center connecting plate, and the joint baffle seat is located at center company
Above fishplate bar through hole, the joint baffle seat inner hollow, the joint baffle seat is used to connect the center connecting plate through hole
With the pressure difference valve assembly,
The pressure difference valve assembly is fixedly set on the joint baffle seat, the relatively described joint gear of the pressure difference valve assembly
Panel seat forms eccentric structure, and the pressure difference valve assembly is used for the flow direction for changing the liquid that shoves,
The orientation grip is arranged on the pressure difference valve assembly,
Stream mode is hidden, the liquid that shoves is by the oil tube external thread pipe nipple, the center connecting plate through hole and described connects
First speed panel seat enters in the pressure difference valve assembly,
Bleed state, the liquid collecting tank liquid connect through the pressure difference valve assembly, the joint baffle seat, the center
Plate through hole and the oil tube external thread pipe nipple are flowed into the oil pipe.
Further, the pressure difference valve assembly includes body, valve ball, valve seat, and cavity, and institute are provided with the body
The lower end for stating body is longitudinally provided with first through hole and the second through hole side by side, orients grip described in the first through hole face, institute
State the second through hole and deviate the orientation grip, the upper end of the joint baffle seat is stretched into the first through hole, the valve seat
Be arranged in second through hole, be provided with inside the valve seat valve block hole, the valve block hole and the cavity and
The collecting tank is connected, and the valve ball is arranged in the cavity,
Stream mode is hidden, above the valve seat, the liquid that shoves passes through the oil tube external thread for the valve ball closure
Pipe nipple, the center connecting plate through hole and the joint baffle seat enter in the cavity,
Bleed state, the valve ball depart from above the valve seat, and the liquid collecting tank liquid is through the valve seat, institute
Cavity, the joint baffle seat, the center connecting plate through hole and the oil tube external thread pipe nipple is stated to flow into the oil pipe.
Further, the upper end of the joint baffle seat is provided with liquid spiracular plate and ball tripping rod, and the liquid spiracular plate is provided with
Multiple liquid stomatas, the ball tripping rod are arranged on the liquid spiracular plate, and the ball tripping rod is used to stop the valve ball closure institute
Joint baffle seat is stated, and the multiple liquid stomatal size sum is all higher than or equal to the cavity with the valve seat via area
Longitudinal cross-section is accumulated and the difference of the valve ball sectional area.
Specifically, the valve ball is solid iron ball.
Specifically, the oil pipe flow control dirtproof cover also includes elastic washer, and the elastic washer is arranged on outside the oil pipe
Between nipple joint and the center connecting plate.
Specifically, the reach of the oil tube external thread pipe nipple is that plain tubing as defined in API standard is threadedly coupled spiral shell
0.6 times of line length.
Specifically, the stream cover outer wall that hides is provided with multiple body flanges, and the multiple body flange is equal along the outer wall for hiding stream cover
Even setting.
Further, the oil pipe flow control dirtproof cover also includes attachment screw, and the inwall for hiding stream cover is provided with outer lug boss,
The outer lug boss is fixed by the attachment screw and the center connecting plate.
Specifically, the attachment screw is provided with multiple, and the multiple attachment screw is evenly provided on the center connection
On plate.
Specifically, the orientation grip is T-shaped.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The present invention flows the structure design of cover and center connecting plate by hiding, and has blocked the liquid that shoves in oil pipe to operating personnel
The health faced injection directly, protect operating personnel；And pass through the structure design of pressure difference valve assembly so that the flow direction for the liquid that shoves
Change, the liquid that avoids shoving outwards spills pollution environment, while avoids the liquid that shoves spilt and cause ground wet and slippery and cause to operate
Personnel fall the problem of falling.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of oil pipe flow control dirtproof cover provided in an embodiment of the present invention；
Fig. 2 is pressure difference valve assembly D-D sections provided in an embodiment of the present invention enlarged diagram.
Wherein：
1 center connecting plate, 2 hide stream cover, and 3 joint baffle seats, 4 liquid spiracular plates, 5 bodies, 6 ball tripping rods, 7 orientation grip, 8 is all
That ball, 9 valve seats, 10 attachment screws, 11 body flanges, 12 elastic washers, 13 oil tube external thread pipe nipples, A valve balls section, B are empty
Chamber longitudinal cross-section, C dash areas.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Usually used oil pipe has 73 millimeters and 88.9 millimeters two kinds of diameter, in the present embodiment with suitable for 73 millimeters of oil
Illustrated exemplified by the oil pipe flow control dirtproof cover of pipe.
As shown in figure 1, a kind of oil pipe flow control dirtproof cover, is arranged on oil pipe, the oil pipe flow control dirtproof cover is used to prevent
The liquid that shoves in the oil pipe outwards sprays, and the oil pipe flow control dirtproof cover includes oil tube external thread pipe nipple 13, center connecting plate
1st, stream cover 2, joint baffle seat 3, pressure difference valve assembly and orientation grip 7 are hidden,
The inner hollow of oil tube external thread pipe nipple 13, the oil tube external thread pipe nipple 13 are used to connect the oil pipe,
The center connecting plate 1 is arranged on the top of oil tube external thread pipe nipple 13, during the center connecting plate 1 is provided with
Heart connecting plate through hole, the center connecting plate through hole connect with the inside of oil tube external thread pipe nipple 13,
The stream cover 2 that hides is enclosed on outside the center connecting plate 1, and the stream cover 2 that hides divides to be upper through the center connecting plate 1
Portion and bottom, the top form collecting tank with the center connecting plate 1, and the lower cover is in the oil tube external thread pipe nipple 13
Outside,
The joint baffle seat 3 is arranged on the center connecting plate 1, and the joint baffle seat 3 is in described
Above heart connecting plate through hole, the inner hollow of joint baffle seat 3, the joint baffle seat 3 is used to connect the center connection
Plate through hole and the pressure difference valve assembly,
The pressure difference valve assembly is fixedly set on the joint baffle seat 3, the relatively described joint of pressure difference valve assembly
Apron block 3 forms eccentric structure, and the pressure difference valve assembly is used for the flow direction for changing the liquid that shoves,
The orientation grip 7 is arranged on the pressure difference valve assembly,
Stream mode is hidden, the liquid that shoves passes through the oil tube external thread pipe nipple 13, the center connecting plate through hole and described
Joint baffle seat 3 enters in the pressure difference valve assembly,
Bleed state, the liquid collecting tank liquid connect through the pressure difference valve assembly, the joint baffle seat 3, the center
Fishplate bar through hole and the oil tube external thread pipe nipple 13 are flowed into the oil pipe.
The present invention operation principle be：
When having needed flowline, the portable orientation grip 7 of operating personnel is moved to tubing coupling, is hidden stream cover 2 and is connected with center
The liquid that shoves that the bottom annular space that fishplate bar 1 is formed is blocked in oil pipe faces injection directly to operating personnel.Operating personnel pin fixed on the other hand
To grip 7, another hand, which rotates, hides stream cover 2, hides the drive center connecting plate 1 of stream cover 2 and oil tube external thread pipe nipple 13 rotates, complete
Oil tube external thread pipe nipple 13 is docked with tubing coupling, and the present invention is arranged on above oil pipe, and the liquid that shoves in oil pipe passes through oil
Pipe external screw thread pipe nipple 13, center connecting plate through hole and joint baffle seat 3 enter in pressure difference valve assembly.Rise, gushed in shackle process
Flow liquid excitement may result in micro leakage, and the micro liquid that shoves of leakage stores into collecting tank is interior.
During above being carried after oil pipe shackle, liquid in the oil pipe aerial drainage under self gravitation effect, and to pressure difference valve assembly
And the liquid in collecting tank forms certain suction force, the liquid in the liquid and collecting tank in pressure difference valve assembly is driven to enter oil
In pipe, air is then by smoothly follow-up, the atmospheric pressure double action outside the suction force of oily liquid in pipe and oil pipe above collecting tank
Under, realize liquid collecting tank liquid, the quick continuous aerial drainage of liquid in liquid and oil pipe in pressure difference valve assembly.
The present invention covers the structure design of 2 and center connecting plate 1 by hiding stream, has blocked the liquid that shoves in oil pipe to operator
The health faced injection directly, protect operating personnel of member；And pass through the structure design of pressure difference valve assembly so that the stream for the liquid that shoves
To change, the liquid that avoids shoving outwards spills pollution environment, while avoids the liquid that shoves spilt and cause ground wet and slippery and cause to grasp
The problem of falling is fallen as personnel.
And the present invention can also realize the quick continuous aerial drainage of oily liquid in pipe, production efficiency height.
As shown in figure 1, in the present embodiment, the pressure difference valve assembly includes body 5, valve ball 8, valve seat 9, described
Cavity is provided with body 5, and the lower end of the body 5 is longitudinally provided with first through hole and the second through hole, the first through hole side by side
Orient grip 7 described in face, second through hole deviates the orientation grip 7, and the upper end of the joint baffle seat 3 is stretched into described
In first through hole, the valve seat 9 is arranged in second through hole, and the inside of valve seat 9 is provided with valve block hole, described
Valve block hole is connected with the cavity and the collecting tank, and the valve ball 8 is arranged in the cavity,
Stream mode is hidden, the valve ball 8 is blocked above the valve seat 9, and the liquid that shoves passes through spiral shell outside the oil pipe
Line pipe nipple 13, the center connecting plate through hole and the joint baffle seat 3 enter in the cavity,
Bleed state, the valve ball 8 depart from the top of valve seat 9, and the liquid collecting tank liquid is through the valve seat
9th, the cavity, the joint baffle seat 3, the center connecting plate through hole and the oil tube external thread pipe nipple flow into the oil pipe
It is interior.
In the present embodiment, body 5 is long 80 millimeters, wide 40 millimeters, high 54 millimeters of cube, from bottom surface from bottom to top
It is provided with first through hole and the second through hole that length is 50 millimeters, a diameter of 33 millimeters of first through hole, from bottom to top provided with M36
Screw thread, the length of internal thread is 20 millimeters, for coordinating with joint baffle seat 3；Second through-hole diameter is 30 millimeters, from bottom to top
Provided with M32 internal threads, the length of internal thread is 20 millimeters, for coordinating with valve seat 9；First through hole and the second through hole longitudinal direction are simultaneously
Row are set, and on more than 15 millimeters of body 5 are laterally drilled with length above the first through hole and the second through hole internal thread as 76 in the least
Rice, a diameter of 30 millimeters of cavity, blocked by welding after brill, cavity connects with first through hole and the second through hole, valve ball 8
A diameter of 23 millimeters, valve ball 8 can free movement in the cavity.9 high 20 millimeters of valve seat, outside is M32 external screw threads, interior
Portion is the valve block hole of 20 millimeters of diameter, and valve block hole top has coordinates setting 2x45 degree chamferings with valve ball 8.
When having needed flowline, because first through hole face orients grip 7, and oil tube external thread pipe nipple 13, center connection
Plate 1, hide the axis of stream cover 2 and joint baffle seat 3 point-blank, thus the center of gravity deviation pressure difference valve assembly of the present invention set it is all
One side of your seat 9, above put forward orientation grip 7, the present invention is overall slightly to be tilted to valve seat 9, valve ball 8 in the cavity of body 5 to
Valve seat 9 is moved, and blocks on valve seat 9, and the liquid that shoves in oil pipe is led to by oil tube external thread pipe nipple 13, center connecting plate
Hole, joint baffle seat 3 enter in pressure difference valve assembly, rise, the liquid excitement of shoving in shackle process in oil pipe, may result in all
Your ball 8 deviates valve seat 9, and micro-amounts of liquids leakage, now, the micro liquid of leakage is entered in collecting tank by valve block hole to be stored up
Deposit.
During above being carried after oil pipe shackle, liquid in the oil pipe aerial drainage under self gravitation effect is empty to pressure difference valve assembly
The liquid and valve ball 8 of intracavitary form certain suction force, and valve ball 8 departs from valve seat 9 in the presence of suction force, in oil pipe
Liquid also forms certain suction force to the liquid in collecting tank, so as to which the liquid in collecting tank is drawn into pressure difference valve assembly
Interior, air above collecting tank then by smoothly following up, outside the suction force of oily liquid in pipe and oil pipe under atmospheric pressure double action,
Oily liquid in pipe, empty intracavity liquid and the smooth aerial drainage of liquid collecting tank liquid.
The present invention changes the flow direction for the liquid that shoved in oil pipe by the structure design of pressure difference valve assembly, fast and easy aerial drainage, and
It is simple in construction.
As depicted in figs. 1 and 2, in the present embodiment, the upper end of the joint baffle seat 3 is provided with liquid spiracular plate 4 and blocked
Post 6, the liquid spiracular plate 4 are provided with multiple liquid stomatas, and the ball tripping rod 6 is arranged on the liquid spiracular plate 4, the ball tripping rod
6 are used to stop that the valve ball 8 blocks the joint baffle seat 3, and the multiple liquid stomatal size sum and the valve seat
Via area is all higher than or the difference of the area equal to the cavity longitudinal cross-section B and the area of the valve ball section A.
Joint baffle seat 3 is used to connect center connecting plate 1 and pressure difference valve assembly, is highly 30 millimeters, 36 millimeters of external diameter, by
Under it is supreme be provided with a diameter of 28 millimeters, length be 26 millimeters of endoporus, endoporus top is the liquid spiracular plate 4 that thickness is 4 millimeters, liquid
The liquid stomata of uniform 10 millimeters of 4 diameters on spiracular plate 4, and ball tripping rod 6 is provided with liquid spiracular plate 4, during avoiding aerial drainage
Valve ball 8 is blocked above joint baffle seat 3.It is provided with the M36 external screw threads that length is 20 millimeters, pressure from top to bottom from endoporus upper end
The body 5 of difference limen assembly is threadedly coupled with joint baffle seat 3, the distance between the bottom of pressure difference valve assembly and center connecting plate 1
For 4 millimeters so that the liquid during aerial drainage in collecting tank unloads smaller to the suction force needed for underground.
As shown in Fig. 2 cavity longitudinal cross-section B is circle, dash area C be cavity longitudinal cross-section B and valve ball section A it
Difference, it can be driven in order to ensure the suction force of the liquid during aerial drainage in oil pipe in the liquid and pressure difference valve assembly in collecting tank
Liquid enter in oil pipe, need to ensure that the area sum of multiple liquid stomatas and the area of valve block hole are all higher than or equal to shade
Part C area, in the present embodiment, the area sum of four liquid stomatas and the area of valve block hole are 314 squares of millis
Rice, cavity longitudinal cross-section B area is 706.5 square millimeters, and the area of valve ball section A is 415.3 square millimeters, therefore cavity
The difference of longitudinal cross-section B area and the area of valve ball section A be 291.2 square millimeters, less than four liquid stomatas area it
With and valve block hole area so that suction force can drive collection to oily liquid in pipe caused by aerial drainage under self gravitation effect
Liquid in liquid bath and cavity is smoothly unloaded to underground.
As shown in figure 1, the valve ball 8 is solid iron ball.
In the present embodiment, valve ball 8 selects a diameter of 23 millimeters of chromium plating solid steel balls, it is ensured that valve ball 8 can be in body 5
Cavity in free movement, and valve can be driven to suction force caused by valve ball 8 in the liquid during aerial drainage in oil pipe
Ball 8 leaves valve seat 9.
As shown in figure 1, the oil pipe flow control dirtproof cover also includes elastic washer 12, the elastic washer 12 is arranged on described
Between oil tube external thread pipe nipple 13 and the center connecting plate 1.Elastic washer 12 is enclosed on the root of oil tube external thread pipe nipple 13, thickness
For 10 millimeters, it is made from oil-resistant rubber material, for buffering the axial force between center connecting plate 1 and oil pipe.
Connect as shown in figure 1, the reach of the oil tube external thread pipe nipple 13 is plain tubing screw thread as defined in API standard
Connect 0.6 times of reach.In the present embodiment, the processing of oil tube external thread pipe nipple 13 performs API standard, and its reach is
33mm, be threadedly coupled reach for plain tubing 0.6 times, guarantee quickly to unload while ensuring and being threadedly coupled performance
Button, improve production efficiency.
As shown in figure 1, stream 2 outer walls of cover that hide are provided with multiple body flanges 11, the multiple body flange 11 flows cover 2 along screening
Outer wall be uniformly arranged.In the present embodiment, it is 158 millimeters to hide stream 2 external diameters of cover, and thickness is 4 millimeters, a height of 100 millimeters, hides stream
The external diameter of cover 2 is less than the suspension ring pitch of holes of pipe elevator used, and suspension ring touch with the present invention during having avoided flowline
Hit, damage is of the invention, and 4 body flanges 11 are provided with the outer wall for hiding stream cover 2, and body flange 11 grows 40 millimeters, wide 5 millimeters, height
10 millimeters, uniformly it is welded on to hide to flow with electric welding longitudinal direction and covers on the same circumference of 2 outer walls, is easy to rotate to hide to flow and covers 2 drive centers company
Fishplate bar 1 and oil tube external thread pipe nipple 13 rotate, certainly, skilled person will appreciate that, the body flange 11 can also be designed as it
His structure, such as cylinder other be easy to stir as described in hide the structure of stream cover 2.
As shown in figure 1, the oil pipe flow control dirtproof cover also includes attachment screw 10, the inwall for hiding stream cover 2 is provided with outer
Boss, the outer lug boss are fixed by the attachment screw 10 and the center connecting plate 1.Hide stream cover 2 with center connecting plate 1 it
Between connected by attachment screw 10, be easy to repair or dismantle.Certainly, skilled person will appreciate that, hide stream cover 2 and be connected with center
Can also be by being welded and fixed or by strength glue sticking between plate 1.
The attachment screw 10 be provided with it is multiple, the multiple attachment screw 10 is evenly provided on the center connecting plate 1
On.Preferably, in the present embodiment, attachment screw 10 is M3x10 hex head screw, and has supporting M3 nuts.Certainly, ability
Field technique personnel understand that on the premise of bonding strength is ensured, the quantity of attachment screw 10 may also be configured to 2,3 or more
It is individual, and attachment screw 10 is also designed to M2, M4 or other sizes.
As shown in figure 1, the orientation grip 7 is T-shaped.In the present embodiment, it is total high 46 millimeters to orient grip 7, top is
Diameter 50 millimeters thick, 6 millimeters of disks, it is 6 millimeters of cylinders of diameter under disc centre, is easy to grasp.Certainly, those skilled in the art
Understand, orientation grip 7 is also designed to other shapes for being easy to grasping, and such as top is spheroid, bottom is cylinder.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (9)
1. a kind of oil pipe flow control dirtproof cover, is arranged on oil pipe, the oil pipe flow control dirtproof cover is used to prevent in the oil pipe
The liquid that shoves outwards sprays, it is characterised in that the oil pipe flow control dirtproof cover includes oil tube external thread pipe nipple, center connecting plate, screening
Cover, joint baffle seat, pressure difference valve assembly and orientation grip are flowed,
The oil tube external thread pipe nipple inner hollow, the oil tube external thread pipe nipple are used to connect the oil pipe,
The center connecting plate is arranged on above the oil tube external thread pipe nipple, and the center connecting plate is provided with center connecting plate
Through hole, the center connecting plate through hole connect with oil tube external thread pipe nipple inside,
For the screening stream enclosure outside the center connecting plate, the stream cover that hides is divided into top with through the center connecting plate
Portion, the top and the center connecting plate form collecting tank, the lower cover outside the oil tube external thread pipe nipple,
The joint baffle seat is arranged on the center connecting plate, and the joint baffle seat is located at the center connecting plate
Above through hole, the joint baffle seat inner hollow, the joint baffle seat is used to connect the center connecting plate through hole and institute
Pressure difference valve assembly is stated,
The pressure difference valve assembly is fixedly set on the joint baffle seat, the relatively described joint baffle seat of the pressure difference valve assembly
Eccentric structure is formed, the pressure difference valve assembly is used for the flow direction for changing the liquid that shoves,
The orientation grip is arranged on the pressure difference valve assembly,
The pressure difference valve assembly includes body, valve ball, valve seat, and cavity, and the lower end of the body are provided with the body
Longitudinal direction is provided with first through hole and the second through hole side by side, orients grip described in the first through hole face, second through hole is inclined
From the orientation grip, the upper end of the joint baffle seat is stretched into the first through hole, and the valve seat is arranged on described
In two through holes, valve block hole is provided with inside the valve seat, the valve block hole and the cavity and the collecting tank are equal
Connection, the valve ball are arranged in the cavity,
Hide stream mode, valve ball closure above the valve seat, it is described shove liquid by the oil tube external thread pipe nipple,
The center connecting plate through hole and the joint baffle seat enter in the cavity,
Bleed state, the valve ball depart from above the valve seat, and the liquid collecting tank liquid is through the valve seat, the sky
Chamber, the joint baffle seat, the center connecting plate through hole and the oil tube external thread pipe nipple are flowed into the oil pipe,
The upper end of the joint baffle seat is provided with liquid spiracular plate and ball tripping rod, and the liquid spiracular plate is provided with multiple liquid stomatas, institute
State ball tripping rod to be arranged on the liquid spiracular plate, the ball tripping rod is used to stop that the valve ball blocks the joint baffle seat.
2. oil pipe flow control dirtproof cover according to claim 1, it is characterised in that the multiple liquid stomatal size sum and institute
Valve seat via area is stated to be all higher than or equal to cavity longitudinal cross-section product and the difference of the valve ball sectional area.
3. oil pipe flow control dirtproof cover according to claim 1, it is characterised in that the valve ball is solid iron ball.
4. oil pipe flow control dirtproof cover according to claim 1, it is characterised in that the oil pipe flow control dirtproof cover also includes bullet
Property packing ring, the elastic washer are arranged between the oil tube external thread pipe nipple and the center connecting plate.
5. oil pipe flow control dirtproof cover according to claim 1, it is characterised in that the screw thread length of the oil tube external thread pipe nipple
Spend be threadedly coupled reach for plain tubing as defined in API standard 0.6 times.
6. oil pipe flow control dirtproof cover according to claim 1, it is characterised in that the stream cover outer wall that hides is provided with multiple convex
Edge body, the multiple body flange are uniformly arranged along the outer wall for hiding stream cover.
7. oil pipe flow control dirtproof cover according to claim 6, it is characterised in that the oil pipe flow control dirtproof cover also includes connecting
Screw is connect, the inwall for hiding stream cover is provided with outer lug boss, and the outer lug boss passes through the attachment screw and the center connecting plate
It is fixed.
8. oil pipe flow control dirtproof cover according to claim 7, it is characterised in that the attachment screw be provided with it is multiple, it is described
Multiple attachment screws are evenly provided on the center connecting plate.
9. the oil pipe flow control dirtproof cover according to any one of claim 1-8 claim, it is characterised in that the orientation is grabbed
Part is T-shaped.
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| CN201410602045.6A CN105625976B (en) | 2014-10-31 | 2014-10-31 | A kind of oil pipe flow control dirtproof cover |
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| CN201410602045.6A CN105625976B (en) | 2014-10-31 | 2014-10-31 | A kind of oil pipe flow control dirtproof cover |
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| CN111395996A (en) * | 2020-05-06 | 2020-07-10 | 中国石油天然气集团有限公司 | Gas-water dual-purpose oil-gas well drill rod mud scraper device and using method thereof |
| CN112412383B (en) * | 2020-11-30 | 2022-06-03 | 中国石油天然气股份有限公司 | Oil pipe liquid extracting device |
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| CN105625976A (en) | 2016-06-01 |
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