CN207673317U - A kind of top drive plash proof valve - Google Patents

A kind of top drive plash proof valve Download PDF

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Publication number
CN207673317U
CN207673317U CN201721763542.XU CN201721763542U CN207673317U CN 207673317 U CN207673317 U CN 207673317U CN 201721763542 U CN201721763542 U CN 201721763542U CN 207673317 U CN207673317 U CN 207673317U
Authority
CN
China
Prior art keywords
spool
wall
valve
hole
driven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201721763542.XU
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Chinese (zh)
Inventor
严雪春
高大军
崔鸿全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Cheng Chuang Intelligent Equipment Co Ltd
Original Assignee
Jiangsu Cheng Chuang Intelligent Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Cheng Chuang Intelligent Equipment Co Ltd filed Critical Jiangsu Cheng Chuang Intelligent Equipment Co Ltd
Priority to CN201721763542.XU priority Critical patent/CN207673317U/en
Application granted granted Critical
Publication of CN207673317U publication Critical patent/CN207673317U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of top drive plash proof valve, including joint body, feed pathway and liquid outlet channel are offered inside joint body, feed pathway is connected with liquid outlet channel, and feed pathway is internally provided with valve body, the inner wall of feed pathway and the inner wall of liquid outlet channel pass through a step surface transition, step surface inner wall is provided with rabbet alloy hoop, valve inner is provided with spool, and spring is provided between valve body and spool, spool bottom offers through-hole, through-hole is internally provided with safety protection mechanism, the utility model solves top in the prior art and drives the technical issues of churn can not prevent the splash of drilling fluid.

Description

A kind of top drive plash proof valve
Technical field
The utility model is related to oil, natural gas and geological prospecting engineering device technique fields more particularly to a kind of top to drive splashproof Valve.
Background technology
Mud saver valve is in oil, natural gas and geological prospecting drilling engineering, make up a joint dismantle drilling rod after prevent Drilling fluid flows to a kind of tool on rig floor from upper water intraocular, and the unnecessary waste of drilling fluid is not only reduced using the tool, The operating environment of worker is also improved simultaneously, and safe operation is improved, inside the plash proof valve that domestic production at present uses Using the shearing pin safety device of seal valve seat, this structure makes body length size long, can not be mounted on and match On the drilling machine for having top drive, cannot meet the needs of churn is driven on top, Authorization Notice No. is the patent of 202012329 U of CN, a kind of Slurry anti-splash valve of square shaft, it lacks safety protection mechanism, the occurrence of cannot preventing to suppress pump.
Utility model content
The purpose of this utility model is to provide a kind of top drive plash proof valve, and solving drive churn in top in the prior art can not The technical issues of preventing the splash of drilling fluid.
Plash proof valve, including joint body are driven in a kind of top, and feed pathway and liquid outlet channel are offered inside the joint body, The feed pathway is connected with liquid outlet channel, and feed pathway is internally provided with valve body, the inner wall of the feed pathway with go out Transition face is connected between the inner wall in liquid channel, the step surface inner wall is provided with fixed ring, and the valve inner is provided with valve Core, and spring is provided between valve body and spool, the spool bottom offers through-hole, and the through-hole is internally provided with safe guarantor Protect mechanism.
Based on the above technical solution, the utility model can also do following improvement:
Further, the transition face is step surface.
Further, the fixed ring is rabbet alloy hoop, and the end lateral surface of the spool is inclined surface, and the valve Core end lateral surface cooperatively forms sealing surface with the fixed ring inner wall, and the advantageous effect using this step is to utilize spool and step Face cooperatively forms sealing, can close mud circulation road in this way.
Further, the valve inner offers the first cavity, and the spring is arranged in valve core inside, and spring end It is connect with the first cavity bottom, is provided with the first sealing ring between the outer wall of the spool and the inner wall of first cavity, adopts It is to provide pressure to spool using spring with the advantageous effect of this step so that spool end and step surface fit closely, such energy The enough stability for ensureing sealing.
Further, the valve core inside offers the second cavity, and first cavity is connected to the second cavity, the peace Full guard mechanism is located at second cavity inside.
Further, the safety protection mechanism includes safe spool, screwed retaining ring and shear plate, the safe spool packet Fixed block and check lock lever are included, the fixed block is arranged in the through-hole, and described check lock lever one end is connect with fixed block, the other end It is threadedly coupled with screwed retaining ring, the shear plate setting is between fixed block upper surface and locking boom end, using having for this step Beneficial effect is when valve body is broken through, and mud can generate shear plate pressure, shear plate strain aging, and safe spool loosens, from And get through runner, it is flowed out convenient for mud, effectively avoids the occurrence of suppressing pump.
Further, the width of the shear plate is more than the diameter of the through-hole, under normal circumstances, prevents safe spool de- It falls, to influence the opening of spool;The end diameter of the screwed retaining ring is more than the diameter of through-hole, to prevent shear plate from deforming Afterwards, safe spool falls shaft bottom.
Further, the inner wall of the through-hole is step type, and the outer wall of the fixed block is opposite with the inner wall of the through-hole It answers.
Further, it further includes the second sealing ring, and second sealing ring is arranged between fixed block and through-hole, is used The advantageous effect of this step is to improve leakproofness.
The beneficial effects of the utility model:
1. the utility model, which is a kind of top, drives plash proof valve, for pushing up drive churn, solve that existing body length is long to ask Topic because length is long, back-up tong just can not holding drill pipe, can not use in this way, the utility model by plash proof valve with top drive guarantor Shield splice combinations can play the role of top and drive protection connector and plash proof valve simultaneously together.
2. the spool in the utility model opens form using automatic reverse, mud pressure acts on valve body and spool institute shape At annular surface on overcome spring force after open rapidly, moved on in valve body on spool, avoid drilling fluid to spool front rush Brush, to extend the service life of spool.
3. the utility model, after spool unlatching, spool only lower face is overcome compressed spring to push valve by drilling liquid pressure Core moves up, and spool moves up power and is far longer than compression spring force, so spool is constantly in full open state, spool does not generate wave Dynamic, flow passage resistance force of waterproof is small, and operates steadily.
4. the spring in the utility model is mounted in the space of totally-enclosed, mud is isolated, has avoided mud and spring is rushed Brush and corrosion, extend the service life of spring, to extend the service life of the utility model entirety.
5. the utility model devises unique safety protection mechanism, institute cannot be opened to prevent valve body erosion from wearing back valve core Caused suppress pumps phenomenon.
6. the utility model is simple in structure, parts are few, and longitudinal length dimension is short, easy to disassemble, maintenance and replacement rapid wear Part.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of top drive plash proof valve described in the utility model specific embodiment 1;
Fig. 2 is the enlarged diagram of the local A of top drive plash proof valve described in the utility model specific embodiment 1 a kind of;
Fig. 3 is a kind of valve body structure schematic diagram of top drive plash proof valve described in the utility model specific embodiment 1;
Fig. 4 is a kind of screwed retaining ring vertical view of top drive plash proof valve described in the utility model specific embodiment 1;
Reference numeral:
1- joint bodies;2- feed pathways;3- liquid outlet channels;4- valve bodies;5- transition faces;6- spools;7- springs;8- is logical Hole;9- safety protection mechanisms;10- fixed rings;The first cavitys of 11-;The second cavitys of 12-;The safe spools of 13-;14- screwed retaining rings; 15- shear plates;16- fixed blocks;17- check lock levers;The first sealing rings of 18-;The second sealing rings of 19-;20- raised lines.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality Novel protected range.
Embodiment
As shown in Figure 1, 2, plash proof valve, including joint body 1, the connector sheet are driven in a kind of top provided by the utility model Feed pathway 2 and liquid outlet channel 3 are offered inside body 1, can facilitate that form mud logical by feed pathway 2 and liquid outlet channel 3 Road;The feed pathway 2 is connected with liquid outlet channel 3, and feed pathway 2 is internally provided with valve body 4, the feed pathway 2 For the inner wall of inner wall and liquid outlet channel 3 by 5 transition of a transition face, 5 inner wall of the transition face is provided with fixed ring 10, wherein fixed Ring is rabbet alloy hoop, plays the role of wear-resisting using rabbet alloy hoop and carries more pressure;The valve body 4 is internally provided with Spool 6, and spring 7 is provided between valve body 4 and spool 6,6 bottom of the spool offers through-hole 8, is set inside the through-hole 8 It is equipped with safety protection mechanism 9;Wherein there are gaps, such mud to flow between 2 inner wall of 4 outer wall of valve body and feed pathway, The outer wall of spool 6 is step surface, and such mud can apply pressure to spool, to push spool 6 to overcome the pressure of spring 7 Power is moved, finally so that the inner wall of rabbet alloy hoop 10 is left in the end of spool 6, to form slurry channel.
Wherein, the transition face 5 is step surface, and the two sides of the end of the spool 6 are inclined surface, and the spool 6 End lateral surface cooperatively forms sealing surface with 10 inner wall of the fixed ring, when slush pump is closed, effect of the spool 6 in spring 7 Lower and 10 inner wall of fixed ring forms sealing, to close mud flow channel.
Wherein, the first cavity 11 is offered inside the valve body 4, the spring 7 is arranged inside spool 6, and 7 end of spring End is connect with 11 bottom of the first cavity, and it is close to be provided with first between the outer wall of the spool 6 and the inner wall of first cavity 11 Seal 18 provides pressure so that 6 end of spool and step surface fit closely, and can ensure so close using spring 7 to spool 6 The stability of envelope, while spring is located inside the first cavity 11, is not in direct contact with mud, can extend making for spring 7 in this way Use the service life.
Wherein, the second cavity 12 is offered inside the spool 6, first cavity 11 is connected to the second cavity 12, institute Safety protection mechanism 9 is stated to be located inside second cavity 12.
Wherein, the safety protection mechanism 9 includes safe spool 13, screwed retaining ring 14 and shear plate 15, the safety valve Core 13 includes fixed block 16 and check lock lever 17, and the fixed block 16 is arranged in the through-hole 8,17 one end of the check lock lever with it is solid Determine the connection of block 16, the other end is threadedly coupled with screwed retaining ring 14, and the shear plate 15 is arranged in 16 upper surface of fixed block and locking Between 17 end of bar, wherein fixed block 16 is bonded with through-hole 8, is closed, and such first cavity 11, the second cavity 12 form close Cavity is sealed, when valve body 4 is broken through, mud can be poured into directly in the first cavity 11 and the second cavity 12, be generated to shear plate 15 Pressure, when pressure reaches certain value, shear plate 15 can be fractureed or be deformed, and safe spool loosens, to mud can directly into Enter in liquid outlet channel, flow directly out, effectively avoids the occurrence of suppressing pump in this way.
Wherein, the width of the shear plate 15 is more than the diameter of the through-hole 8, so under normal circumstances, shear plate 15 Meeting auxiliary seal through-hole 8, the end diameter of the screwed retaining ring 14 are more than the diameter of through-hole 8, such screwed retaining ring 14, safety valve Core 13 and shear plate 15 would not fall into shaft bottom.
Wherein, the inner wall of the through-hole 8 is step type, and the outer wall of the fixed block 16 is opposite with the inner wall of the through-hole 8 It answers, it further includes the second sealing ring 19, and second sealing ring 19 is arranged between fixed block 16 and through-hole 8, close by second Seal 19 can ensure that mud will not pour into the first cavity 11, the second cavity 12, influence to use.
The operation principle of the utility model:
When normal work, when slush pump is switched on, slurry liquid stream enters the space that joint body 1 and valve body 4 are formed, valve body 4 outer surface is provided with multiple raised lines 20, is formed using the gap between raised line 20 and feed pathway 2 and is led to for what mud flowed Road pushes spool 6 that spring 7 is overcome to move up under the action of fluid pressure, channel is opened, to facilitate mud to circulate;Work as termination of pumping When, spool 6 resets under the action of spring 7, closes slurry liquid runner, realizes after dismantling drilling rod, prevents top drive and upper part Mud sprays let out outward in manifold;When generation valve body 4 is washed puncture, mud enters spool 6, is acted at this time in mud pressure Under, shear plate deformation, safe spool 13 falls, and opens slurry channel, can avoid the generation for suppressing pump phenomenon.
Finally it should be noted that:The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it System;Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should Understand:It still can be with technical scheme described in the above embodiments is modified, either to which part or whole Technical characteristic carries out equivalent replacement;And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims (9)

1. plash proof valve is driven on a kind of top, which is characterized in that including joint body, offered inside the joint body feed pathway and Liquid outlet channel, the feed pathway are connected with liquid outlet channel, and feed pathway is internally provided with valve body, the feed pathway Transition face is connected between inner wall and the inner wall of liquid outlet channel, the transition face inner wall is provided with fixed ring, the valve inner It is provided with spool, and is provided with spring between valve body and spool, the spool bottom offers through-hole, is arranged inside the through-hole There is safety protection mechanism.
2. plash proof valve is driven on a kind of top according to claim 1, which is characterized in that the transition face is step surface.
3. plash proof valve is driven on a kind of top according to claim 2, which is characterized in that the fixed ring is rabbet alloy hoop, institute The end lateral surface for stating spool is inclined surface, and the spool end lateral surface and the inner wall of the fixed ring cooperatively form sealing Face.
4. plash proof valve is driven on a kind of top according to claim 3, which is characterized in that the valve inner offers the first sky Chamber, the spring is arranged in valve core inside, and spring end is connect with the first cavity bottom, the outer wall of the spool and described the The first sealing ring is provided between the inner wall of one cavity.
5. plash proof valve is driven on a kind of top according to claim 4, which is characterized in that the valve core inside offers the second sky Chamber, first cavity are connected to the second cavity, and the safety protection mechanism is located at second cavity inside.
6. plash proof valve is driven on a kind of top according to claim 5, which is characterized in that the safety protection mechanism includes safety valve Core, screwed retaining ring and shear plate, the safe spool include fixed block and check lock lever, and the fixed block is arranged in the through-hole Interior, described check lock lever one end is connect with fixed block, and the other end is threadedly coupled with screwed retaining ring, and the shear plate is arranged in fixed block Between upper surface and screwed retaining ring end.
7. plash proof valve is driven on a kind of top according to claim 6, which is characterized in that the width of the shear plate is more than described logical The diameter in hole, the end diameter of the screwed retaining ring are more than the diameter of through-hole.
8. plash proof valve is driven on a kind of top according to claim 7, which is characterized in that the inner wall of the through-hole is step type, institute The outer wall for stating fixed block is corresponding with the inner wall of the through-hole.
9. plash proof valve is driven on a kind of top according to claim 8, which is characterized in that it further includes the second sealing ring, and described the Two sealing rings are arranged between fixed block and through-hole.
CN201721763542.XU 2017-12-15 2017-12-15 A kind of top drive plash proof valve Withdrawn - After Issue CN207673317U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721763542.XU CN207673317U (en) 2017-12-15 2017-12-15 A kind of top drive plash proof valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721763542.XU CN207673317U (en) 2017-12-15 2017-12-15 A kind of top drive plash proof valve

Publications (1)

Publication Number Publication Date
CN207673317U true CN207673317U (en) 2018-07-31

Family

ID=62969452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721763542.XU Withdrawn - After Issue CN207673317U (en) 2017-12-15 2017-12-15 A kind of top drive plash proof valve

Country Status (1)

Country Link
CN (1) CN207673317U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107905765A (en) * 2017-12-15 2018-04-13 扬州诚创石油机械有限公司 Drive plash proof valve in one kind top
CN114382429A (en) * 2022-03-24 2022-04-22 东营市创元石油机械制造有限公司 Mud splashproof valve for oil field well drilling
CN107905765B (en) * 2017-12-15 2024-04-05 江苏诚创智能装备有限公司 Top drive splash-proof valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107905765A (en) * 2017-12-15 2018-04-13 扬州诚创石油机械有限公司 Drive plash proof valve in one kind top
CN107905765B (en) * 2017-12-15 2024-04-05 江苏诚创智能装备有限公司 Top drive splash-proof valve
CN114382429A (en) * 2022-03-24 2022-04-22 东营市创元石油机械制造有限公司 Mud splashproof valve for oil field well drilling
CN114382429B (en) * 2022-03-24 2022-05-24 东营市创元石油机械制造有限公司 Mud splashproof valve for oil field well drilling

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GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20180731

Effective date of abandoning: 20240405

AV01 Patent right actively abandoned

Granted publication date: 20180731

Effective date of abandoning: 20240405