CN201057019Y - Slurry anti-splash valve of square shaft - Google Patents
Slurry anti-splash valve of square shaft Download PDFInfo
- Publication number
- CN201057019Y CN201057019Y CNU2007200406665U CN200720040666U CN201057019Y CN 201057019 Y CN201057019 Y CN 201057019Y CN U2007200406665 U CNU2007200406665 U CN U2007200406665U CN 200720040666 U CN200720040666 U CN 200720040666U CN 201057019 Y CN201057019 Y CN 201057019Y
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- valve
- spool
- valve body
- wall
- mud
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Abstract
The utility model discloses a kelly bar mud splash proof valve for reducing mud waste and improving the well drilling operational environment, and the valve belongs to the valve technical field. The kelly bar mud splash proof valve comprises a connector main body, a valve seat and a valve core arranged in the connector main body, a projection part arranged on the outer surface of the valve core, a valve core inner cavity arranged in the valve core, a valve body suited outside the valve core, a valve body inner cavity arranged in the valve body, a compression spring arranged between the valve core and the valve body along the vertical direction, a well drilling mud channel groove with the both ends connected arranged on the side wall of the valve body along the vertical direction, a limit mechanism arranged on the inner wall of the connector main body, wherein, the valve seat and the valve core are mutually matched to form sealing, the lower end of the valve core is sealed, the upper end of the valve body is sealed, a part of the valve core is positioned in the valve body inner cavity, and the outer wall of the projection part is contacted with the outer wall of the valve body inner cavity to form sealing, the both ends of the compression spring are respectively propped against the sealed end of the valve body and the sealed end of the valve core, and the upper end of the valve body propped against on the limit mechanism.
Description
Technical field
The utility model belongs to the valve technology field, relates in particular to a kind of mud plash proof valve that is installed in the kelly bar bottom in the oil-well drilling equipment.
Background technology
In the single process of oil drilling stacks, when kelly bar and drilling rod shackle disengagement, kelly bar with and the mud of pipe interior such as top standpipe will outwards flow out, not only cause the waste of mud, and a large amount of mud are sprayed on the drilling well work top, cause environment pollution, influence workman's construction operation, increase potential safety hazard, reduce operating efficiency.At present, adopt the generation of avoiding the problems referred to above at kelly bar bottom plug valve of installation usually, yet plug valve needs artificial opening and closing, troublesome poeration; Usually in the mouse hole pipe, connect the finishing drilling bar single after, must open plug valve, still can cause the waste of mud.In addition,, forget and open plug valve, then can cause the generation of suppressing accidents such as pump if operating personnel neglect.
The utility model content
Technical problem to be solved in the utility model provides a kind of kelly bar mud plash proof valve that reduces the mud waste, improves the drilling well working environment.
The utility model comprises joint body, joint body is provided with an inner chamber, the top inner surface wall of joint body is provided with internal thread, the bottom jointed rod joint of joint body, on the appearance wall of described tool joint external screw thread is set, arrange a valve seat in the inner chamber of joint body, a valve seat opening is set on the valve seat; Arrange a spool on the valve seat, the bottom of spool places the valve seat opening, and the lower external face of the edge of valve seat opening and spool complements each other to form sealing; One ledge around spool is set, and spool is provided with a valve core cavity, the lower end closed of spool on the external surface of spool; Spool overcoat one valve body, valve body is provided with a body cavity, and the upper end closed of valve body, and a part of spool is in the body cavity, and the appearance wall of the ledge of spool and body cavity table wall are in contact with one another and form sealing; Vertically arrange a compression spring between spool and valve body, the two ends of described compression spring are against respectively on the blind end of the blind end of valve body and spool; The drilling mud channel groove vertically is set on the sidewall of valve body, and drilling mud channel groove two ends are penetrating to be interconnected with inner chamber joint body; Arrange a position-limit mechanism on the inner surface wall of joint body, the upper end of valve body is against on the position-limit mechanism and moves up with the inner surface wall of limiting valve body along joint body.
Kelly bar is connected with joint body by the internal thread of the top inner surface wall setting of joint body; Drilling rod then is connected with joint body by the external screw thread that is provided with in the tool joint.When slush pump was started shooting, mud liquid can flow into the seal cavity that valve seat and spool form by the drilling mud channel groove that is provided with on the body wall.Because the appearance wall of the ledge that is provided with on the spool and the inner chamber table wall of valve body are in contact with one another, so have the gap between the appearance wall of the spool of ledge downside and the body cavity table wall.Under the effect of mud fluid pressure, mud liquid flows into the gap and promotes elastic force and the air compressive force that spool overcomes the compression spring, spool is along moving on the body cavity table wall, thereby separate between spool and the valve seat, mud liquid passage is opened, mud enters drilling rod by kelly bar, carries out normal drilling mud circulation.When stacks was single, slush pump was shut down, and spool resets under the effect of the elastic force of compression spring and compressed air power, and once more and form sealing between the valve seat, mud liquid passage is closed.
Compare with the plug valve that uses in the prior art, the utility model can carry out opening and closing automatically according to the start and the shutdown of slush pump, outwards sprays with the mud that stops kelly bar inside and lets out, and reduces mud and wastes, thereby improved the drilling well working environment.
As improvement of the present utility model, arrange a caging bolt in the inner chamber of valve body, caging bolt is connected with the blind end of valve body, and the compression spring housing is on caging bolt.
The compression spring housing can prevent to compress break-in in the process of spring in elastic deformation on the caging bolt.
As improvement of the present utility model, the seal groove around this ledge is set on the appearance wall of the ledge of spool, arrange sealing ring in the seal groove.
Sealing ring can play further sealing function between the inner surface wall of ledge and valve body.
As improvement of the present utility model, position-limit mechanism comprises jump ring, and the jump ring groove is set on the inner surface wall of joint body, and jump ring is arranged in the jump ring groove.
Position-limit mechanism is designed to the jump ring form, and is not only simple in structure, and easy to operate.
As improvement of the present utility model, the number of drilling mud channel groove is three, and above-mentioned three drilling mud channel groove are evenly arranged on the valve body.
It is even, smooth and easy to be evenly arranged in the circulation that three drilling mud passages on the valve body can guarantee mud liquid.
As improvement of the present utility model, on the sidewall of valve body, connect stop screw, the front end of stop screw penetrates and passes from the inside wall of valve body from outer side of valve body; The front end of stop screw stretches into the below of a limited step that is provided with on the spool, and above-mentioned limited step is formed by the ledge of spool and the appearance wall of its downside spool.
Connecting stop screw on the valve body is when in joint body spool and valve body being installed, and they can be used as an integral body and install simultaneously.The front end of stop screw stretches into the below of the limited step that is provided with on the spool, can stop thus spool the compression spring the elastic force effect under with valve body between separating, thereby realized spool and valve body as an integral installation in joint body.
Description of drawings
Fig. 1 is the structural representation of the utility model kelly bar mud plash proof valve.
Fig. 2 is the sectional view along A-A line among Fig. 1.
The specific embodiment
As shown in Figure 1, kelly bar mud plash proof valve comprises joint body 1, and inner chamber 2 is set in the joint body 1, on joint body 1 inner surface wall on top internal thread is set.Jointed rod joint 3 on the joint body 1 of bottom is provided with external screw thread on the appearance wall of described tool joint 3.Inner chamber 4 is set in the tool joint 3, and described inner chamber 4 and inner chamber 2 are interconnected.
Arrange a valve seat 5 in the inner chamber 2 of joint body 1, the centre of valve seat 5 is provided with a valve seat opening, and the top edge of valve seat opening is provided with an inclined-plane.
Arrange a spool 6 on the valve seat 5.Described spool 6 is cylindrical shape, and the lower end closed of spool 6, and upper end open is provided with inner chamber in the spool 6 simultaneously.The bottom of spool 6 places the valve seat opening, on the external surface of spool 6 bottoms an inclined-plane is set, thereby the inclined-plane of the inclined-plane of spool 6 and valve seat opening complements each other to form sealing.The one ledge 6-1 around spool 6 is set on the external surface of a part of spool 6.Ledge 6-1 goes up two seal grooves that are provided with around ledge 6-1, arranges a sealing ring 7 in above-mentioned each seal groove respectively.
At its vertical length direction of the sidewall upper edge of valve body 8 three drilling mud channel groove 8-1,8-2 and 8-3 that two ends are penetrating are set.Only shown one of them drilling mud channel groove 8-1 among Fig. 1.As shown in Figure 2, three drilling mud channel groove are evenly arranged on the valve body 8, and three drilling mud channel groove all are interconnected with the inner chamber 2 of joint body 1.
Pack into simultaneously in the joint body 1 as an integral body for the ease of spool 6 and valve body 8, connect stop screw 12 on the sidewall of valve body 8, the front end of stop screw 12 penetrates and passes from the inside wall of valve body 8 from the lateral wall of valve body 8.Form a limited step between the ledge 6-1 of spool 6 and the appearance wall of its downside spool 6, the front end of stop screw 12 stretches into the below of above-mentioned limited step, is separating under the elastic force effect of compression spring 10 with between the valve body 8 to stop spool 6.Only shown a stop screw 12 among Fig. 2,, can use a plurality of stop screws 12 in the present embodiment in order to strengthen limit effect.
Claims (6)
1. kelly bar mud plash proof valve, comprise joint body, joint body is provided with an inner chamber, the top inner surface wall of joint body is provided with internal thread, the bottom jointed rod joint of joint body, on the appearance wall of described tool joint external screw thread is set, it is characterized in that: arrange in the inner chamber of joint body one valve seat opening to be set a valve seat on the valve seat; Arrange a spool on the valve seat, the bottom of spool places the valve seat opening, and the lower external face of the edge of valve seat opening and spool complements each other to form sealing; One ledge around spool is set, and spool is provided with a valve core cavity, the lower end closed of spool on the external surface of spool; Spool overcoat one valve body, valve body is provided with a body cavity, and the upper end closed of valve body, and a part of spool is in the body cavity, and the appearance wall of the ledge of spool and body cavity table wall are in contact with one another and form sealing; Vertically arrange a compression spring between spool and valve body, the two ends of described compression spring are against respectively on the blind end of the blind end of valve body and spool; The drilling mud channel groove vertically is set on the sidewall of valve body, and drilling mud channel groove two ends are penetrating to be interconnected with inner chamber joint body; Arrange a position-limit mechanism on the inner surface wall of joint body, the upper end of valve body is against on the position-limit mechanism and moves up with the inner surface wall of limiting valve body along joint body.
2. kelly bar mud plash proof valve according to claim 1 is characterized in that: arrange a caging bolt in the inner chamber of valve body, caging bolt is connected with the blind end of valve body, and the compression spring housing is on caging bolt.
3. kelly bar mud plash proof valve according to claim 1 is characterized in that: the seal groove around this ledge is set on the appearance wall of the ledge of spool, arranges sealing ring in the seal groove.
4. kelly bar mud plash proof valve according to claim 1, it is characterized in that: position-limit mechanism comprises jump ring, and the jump ring groove is set on the inner surface wall of joint body, jump ring is arranged in the jump ring groove.
5. kelly bar mud plash proof valve according to claim 1 is characterized in that: the number of drilling mud channel groove is three, and above-mentioned three drilling mud channel groove are evenly arranged on the valve body.
6. kelly bar mud plash proof valve according to claim 1 is characterized in that: connect stop screw on the sidewall of valve body, the front end of stop screw penetrates and passes from the inside wall of valve body from outer side of valve body; The front end of stop screw stretches into the below of a limited step that is provided with on the spool, and above-mentioned limited step is formed by the ledge of spool and the appearance wall of its downside spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200406665U CN201057019Y (en) | 2007-07-12 | 2007-07-12 | Slurry anti-splash valve of square shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200406665U CN201057019Y (en) | 2007-07-12 | 2007-07-12 | Slurry anti-splash valve of square shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057019Y true CN201057019Y (en) | 2008-05-07 |
Family
ID=39425860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200406665U Expired - Fee Related CN201057019Y (en) | 2007-07-12 | 2007-07-12 | Slurry anti-splash valve of square shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057019Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899275A (en) * | 2014-04-11 | 2014-07-02 | 中国海洋石油总公司 | Arrow type drain valve for casing pipe of drilling platform |
| CN103899274A (en) * | 2014-04-11 | 2014-07-02 | 中国海洋石油总公司 | Plate type drain valve for casing pipe of drilling platform |
| CN104110237A (en) * | 2014-07-21 | 2014-10-22 | 扬州诚创石油机械有限公司 | Reversely-opening kelly bar splash-proof valve |
-
2007
- 2007-07-12 CN CNU2007200406665U patent/CN201057019Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899275A (en) * | 2014-04-11 | 2014-07-02 | 中国海洋石油总公司 | Arrow type drain valve for casing pipe of drilling platform |
| CN103899274A (en) * | 2014-04-11 | 2014-07-02 | 中国海洋石油总公司 | Plate type drain valve for casing pipe of drilling platform |
| CN104110237A (en) * | 2014-07-21 | 2014-10-22 | 扬州诚创石油机械有限公司 | Reversely-opening kelly bar splash-proof valve |
| CN104110237B (en) * | 2014-07-21 | 2016-06-22 | 扬州诚创石油机械有限公司 | A kind of kelly bar plash proof valve of reverse unlatching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YANGZHOU CHENGCHUANG PETROLEUM MACHINERY CO. TD. Free format text: FORMER OWNER: YANGZHOU CHENGCHUANG TECHNOLOGY CO., LTD. Effective date: 20101116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 225009 6/F, INDUSTRY AND COMMERCE BUREAU OF DEVELOPMENT AREA, NO.317, WENHUI EAST ROAD, YANGZHOU CITY, JIANGSU PROVINCE TO: 225008 INSIDE OF ECONOMIC DEVELOPMENT ZONE, WEIYANG, YANGZHOU CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101116 Address after: 225008 Weiyang Economic Development Zone, Jiangsu, Yangzhou Patentee after: YANGZHOU CHENGCHUANG PETROLEUM MACHINERY CO., LTD. Address before: Wenhui Road 225009 Jiangsu province Yangzhou City Development Zone No. 317 building 6 Industrial and Commercial Bureau Patentee before: Yangzhou Chengchuang Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20160712 |