CN218894999U - External positioning plug valve with double valve ports capable of controlling opening and closing in bilateral balance mode - Google Patents
External positioning plug valve with double valve ports capable of controlling opening and closing in bilateral balance mode Download PDFInfo
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- CN218894999U CN218894999U CN202222397373.XU CN202222397373U CN218894999U CN 218894999 U CN218894999 U CN 218894999U CN 202222397373 U CN202222397373 U CN 202222397373U CN 218894999 U CN218894999 U CN 218894999U
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- 230000002146 bilateral effect Effects 0.000 title description 8
- 230000009977 dual effect Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model provides an outer locating type plug valve with but two side balance control switching of valve port, including the valve body, the valve ball, lower disk seat, upper disk seat and rotatory bolt, lower disk seat and upper disk seat seal fit in proper order are inlayed in the valve body, the spacing setting of valve ball is between lower disk seat and upper disk seat, can rotate and respectively keep sealed cooperation with the two relatively lower disk seat and upper disk seat, it is corresponding with the valve ball position, rotatory bolt has been inlayed at the radial both ends of valve body symmetry, the inboard end is connected with the valve ball cooperation respectively and can transmit torque power, the outside end is provided with respectively and wrenches the control structure, be provided with the doublestage valve port in the valve body inner chamber, every valve port department respectively includes a set of valve ball, lower disk seat, upper disk seat and rotatory bolt, this plug valve has increased the control point of plug valve switching and evenly distributed along circumference, make two valve ports each other produce the safety guarantee, can improve plug valve control operation's flexibility and wrenching, safety and reliability that the shutoff blowout prevention function realized simultaneously has been strengthened.
Description
Technical Field
The utility model relates to an external positioning type plug valve capable of controlling opening and closing in a bilateral balance mode, in particular to an external positioning type plug valve with double valve ports capable of controlling opening and closing in a bilateral balance mode.
Background
The plug valve is a manual control valve in an oilfield drill string circulation system, and is used as an important internal blowout prevention tool and comprises an upper plug valve and a lower plug valve, and when overflow or blowout occurs, the valve plug is turned by 90 degrees to close a valve port, so that the purpose of intercepting blowout prevention can be achieved. The plug valve in the prior art mainly comprises a valve body, a valve ball, a lower valve seat, an upper valve seat, a knob, a positioning disc and a positioning ring, wherein: the valve ball is embedded in the valve body by the cooperation of the upper valve seat and the lower valve seat, one end of the valve ball is fixedly connected with the inner wall of the valve body through a rotating shaft, the other end of the valve ball is correspondingly coaxially connected with a knob embedded in the valve body, the valve ball can be controlled to turn over to realize the closing or opening of the valve port by pulling the knob, the inner side of the valve body is matched with the structure of the positioning disc and the positioning ring, the rotating angle of the knob is limited in the range of 90 degrees, and the plug valve with the traditional structure is widely applied in the current production. However, because the manual control valve generally has the problem of difficult turning and opening and closing when the two ends of the valve port have larger pressure difference, the plug valve with the traditional structure adopts an operation mode that one end applies force to turn the valve ball, on one hand, the phenomenon of obvious unbalance of action torque at the two ends of the axis of the ball valve exists, so that the rotation resistance of the ball valve is increased, on the other hand, the single-point application of force can greatly limit the action strength of the force, the problem of difficult turning under the high pressure difference state is difficult to be improved, and meanwhile, the positioning disc, the positioning ring and the matching structure between the positioning disc and the positioning ring are arranged in the valve body, so that the complexity of the design structure of the plug valve is increased to a certain extent, the difficulty of product processing and turning is increased, and meanwhile, the production cost and the labor intensity are increased. Therefore, it is necessary to optimize and improve the structure of the traditional plug valve, improve the stress balance of the valve ball, enhance the working reliability of the plug valve, and reduce the production cost and the production labor intensity of the product.
Disclosure of Invention
The external positioning plug valve with double valve ports capable of being opened and closed in double-side balance control mode is provided, and the safety and reliability of interception blowout prevention are enhanced by adopting a double valve port four-control point structural design.
An externally positioned plug valve for controlling opening and closing of double-side balance in oil field, comprising: the valve body is a cylindrical barrel, connecting threads are respectively arranged at the upper end and the lower end of the valve body for being connected with a drilling rod of an oilfield drilling tool, the valve ball is in a ball shape provided with an axial through hole, key pin structures are symmetrically arranged on two sides of an outer spherical surface in the axial direction perpendicular to the axial through hole respectively, the lower valve seat and the upper valve seat are in cylindrical shapes, the peripheral diameters of the lower valve seat and the upper valve seat respectively correspond to the aperture of an inner cavity of the valve body, arc-shaped spherical surfaces which are correspondingly matched with the outer spherical surface of the valve ball are respectively arranged in local areas on the upper end surface of the lower valve seat and the lower end surface of the upper valve seat, the lower valve seat and the upper valve seat are sequentially and hermetically matched and embedded in the inner cavity of the valve body, the valve ball is matched and limited by the lower valve seat and the upper valve seat and is arranged between the lower valve seat and the upper valve seat, the valve ball can rotate relative to the lower valve seat and the upper valve seat, the outer circumferential surface of the valve ball is respectively in sealing fit with the arc-shaped spherical surfaces on the lower valve seat and the upper valve seat, when the axial through hole of the valve ball rotates to the axial direction of the valve body, the inner cavity channel of the valve body is conducted, when the axial through hole of the valve ball rotates to the direction vertical to the axial direction of the valve body, the inner cavity channel of the valve body is closed, corresponding to the arrangement position of the valve ball, the symmetrical positions at the two radial ends of the valve body are respectively provided with an embedded hole of a limiting shoulder, the limiting shoulder is used for limiting, the rotary bolt respectively penetrates through the side wall of the valve body and is in sealing fit with the embedded hole to be embedded in the embedded hole, the inner side end is respectively in fit connection with a key pin structure arranged on the valve ball, torque power can be transmitted to the valve ball, the outer side end is respectively provided with a wrenching control structure, torque power can be applied to the rotation plug from the outside by the wrenching control structure.
The external positioning plug valve capable of controlling opening and closing in double-side balance for the oil field is characterized in that a limiting block is preferably arranged in an embedded hole of the valve body, a limiting groove which is correspondingly matched with the limiting block structure is formed in the rotary plug, the rotation angle amplitude of the rotary plug is limited to 90 degrees, and limiting points at two ends are kept to be respectively corresponding to the on-state and the off-state of an inner cavity channel of the valve body.
The external positioning plug valve capable of controlling opening and closing in double-side balance for the oil field is characterized in that cross knots are preferably arranged between the corresponding ends of the rotary plug and the valve ball respectively, and the rotary plug and the valve ball are connected with each other by utilizing the cross knots in a transition mode, so that the coaxiality dynamic adjustment capability of the valve ball on torque power applied to two ends of the rotary plug by the valve ball in a rotary state is improved.
The external positioning plug valve is used for oil fields, can be opened and closed by bilateral balance control, and is preferably provided with an antifriction gasket between the matching surfaces of the rotary plug and the limiting shoulders in the embedded holes, so that friction resistance between the rotary plug and the valve body during rotation is reduced, fluency and effectiveness of rotation of the rotary plug are improved, meanwhile, abrasion strength between the rotary plug and the valve body is reduced, and service life of the rotary plug and the valve body is prolonged.
An external positioning plug valve with double valve ports capable of controlling opening and closing in double-side balance comprises a valve body, wherein a double-stage valve port is arranged in an inner cavity of the valve body, and each valve port comprises: the oil field external positioning plug valve comprises a valve ball, a lower valve seat, an upper valve seat and a rotary plug, wherein on each valve port, the valve body, the valve ball, the lower valve seat, the upper valve seat and the rotary plug all have the same connection structural relationship with the external positioning plug valve capable of controlling opening and closing in a bilateral balance mode for an oil field.
The external positioning plug valve with double valve ports capable of controlling opening and closing in double-side balance mode is characterized in that the rotary bolts arranged on the two valve ports are preferably arranged in a crossing mode along two radial directions perpendicular to each other, 4 control points for controlling opening and closing of the valve ports are uniformly distributed on the outer circumferential surface of the valve body, and convenience in controlling opening and closing of the valve ports is improved.
The utility model has the beneficial effects that the external positioning type plug valve with double valve ports capable of realizing bilateral balance control on-off has the advantages that the design structure that two valve ports are arranged on one valve body is adopted, each valve port is provided with the external positioning type turning mechanism capable of realizing bilateral balance control on-off, and preferably, a cross joint is used for transitional connection with a rotary plug and a valve ball, so that the rotary plug corresponding to each other at both sides of each valve ball can automatically and dynamically adjust the rotation coaxiality, on the basis of obviously improving the on-off operability of each valve port, reducing the on-off rotary resistance of the rotary plug and the ball valve, the control point of turning on-off of the plug valve is increased, the two valve ports can mutually produce safety guarantee, the single-side turning rotary plug can be selected, the double-side balance control rotation can be realized, the safety and reliability realized by the cut-off blowout prevention function can be enhanced, the flexibility and the convenience of the control operation of the plug valve can be improved, the use efficiency can be further improved, the control mode of the plug valve can be selectively arranged, at least one valve port is set into a mechanical control mode, the plug valve is favorable for pushing production and has good popularization and application prospect.
Drawings
FIG. 1 is a block diagram of an externally positioned plug valve with dual ports for dual side balanced control of opening and closing.
Fig. 2 is a partial side view in the direction a of fig. 1.
FIG. 3 is a cross-sectional view taken along section B-B in FIG. 1.
FIG. 4 is a cross-sectional view taken along section C-C of FIG. 1.
Detailed Description
Further, the technical scheme of the utility model is further described with reference to specific embodiments and attached drawings.
An external positioning plug valve with double valve ports for oil field, which can be opened and closed by double-side balance control, is composed of a valve body 1, a valve ball 2, a lower valve seat 3, an upper valve seat 4, a rotary bolt 5, a cross joint 7, an antifriction gasket 8, a supporting ring 9, a splicing ring 10, a circlip 11 and a wave ring spring 12 as shown in figures 1 to 4.
The valve body 1 is internally provided with a two-stage valve port, in the middle of the inner cavity of the valve body 1, the valve port setting part faces the corresponding end head direction of the valve body 1, 3-stage inner convex shoulders and 1 annular clamping groove are sequentially arranged, the lower valve seat 3 and the upper valve seat 4 are respectively limited by a one-stage shoulder surface and a three-stage shoulder surface, the upper valve seat 4 is embedded in the inner cavity of the valve body 1 in a sealing fit manner, and the upper end of the upper valve seat 4 is fixedly limited by a combined structure of the supporting ring 9, the splicing ring 10 and the elastic retainer ring 11, wherein: the splicing blocks of the splicing ring 10 are respectively embedded in the annular clamping grooves to form a ring body, the supporting ring 9 is matched and arranged in the inner ring of the splicing ring 10, the elastic retainer ring 11 is embedded and clamped in an embedded annular groove formed in the inner annular surface of the splicing ring 10, the supporting ring 9 is propped and clamped on the upper end surface of the upper valve seat 4, the upper valve seat 4 is further locked and fixed on the valve body 1, the valve ball 2 is matched and arranged between the lower valve seat 3 and the upper valve seat 4, the valve ball 2 can rotate relative to the lower valve seat 3 and the upper valve seat 4, the ring spring 12 is arranged between a second-stage shoulder surface arranged on the valve body 1 and the lower valve seat 3, elastic pre-tightening force is provided for the lower valve seat 3, the outer circumferential surface of the valve ball 2 is enabled to be in sealing fit with an arc-shaped spherical surface on the upper valve seat 4 respectively, the outer circumferential surface of the valve ball 2 is provided with a straight line-shaped pin 5 which is arranged in a direction perpendicular to the axial through hole, the two opposite side surfaces of the cross pin 5 are correspondingly provided with the two linear grooves 5, the two side surfaces are correspondingly arranged in a radial direction of the cross pin 5 are correspondingly arranged in the two side surfaces of the valve seat 5, the two side surfaces are correspondingly arranged in the two side surfaces of the valve seat 5 are correspondingly arranged in the radial direction, the two side surfaces are correspondingly arranged in the two side surfaces 5 are correspondingly arranged in the opposite the radial grooves 5, respectively, the two sides are correspondingly arranged in the side surfaces are correspondingly opposite to each side, respectively, and the two opposite the valve seat surface is provided with the valve seat 5 are provided with a sealing pin is provided with a sealing groove is a clamping force, and a sealing has a clamping force is, the rotary bolt 5 and the valve ball 2 are connected with each other by utilizing the cross joint 7 in a transitional way, and an antifriction gasket 8 is arranged between the matching surfaces of the rotary bolt 5 and the limiting shoulder. Meanwhile, a limiting block 6 is arranged in the embedding hole, a limiting groove 13 which is correspondingly matched with the limiting block 6 in structure is formed in the rotary bolt 5, the rotation angle amplitude a of the rotary bolt 5 is limited to 90 degrees, and limiting points at two ends are kept to be respectively corresponding to the on and off states of the inner cavity channel of the valve body 1.
The implementation of the external positioning plug valve with double valve ports for controlling opening and closing of the oil field by double-side balance adopts the structural design of four control points of the double valve ports, so that the safety and reliability of the realization of the shutoff blowout prevention function can be effectively enhanced, when one valve port fails, the other valve port can further provide effective functional guarantee, in addition, a mechanical control mode can be set in actual production, namely, one valve port is set into a mechanical power control mode by using an auxiliary facility, and meanwhile, the other valve port is reserved to maintain a manual control mode, and the full production control mode promotes the mechanization of plug valve control on the premise of ensuring production safety, so that the plug valve has good popularization and application prospects.
Claims (6)
1. An externally positioned plug valve with dual ports for dual side balance control opening and closing, comprising: the valve body (1), the valve ball (2), the lower valve seat (3), the upper valve seat (4) and the rotary bolt (5), the valve body (1) is a cylindrical barrel, connecting threads are respectively arranged at the upper end and the lower end, the valve ball (2) is in a round ball shape provided with an axial through hole, key pin structures are respectively arranged on two sides of an outer spherical surface in the axial direction perpendicular to the axial through hole in a mutually symmetrical mode, the lower valve seat (3) and the upper valve seat (4) are in a cylindrical shape, the outer peripheral diameters respectively correspond to the bore diameters of an inner cavity of the valve body (1), arc-shaped spherical surfaces which are correspondingly matched with the outer spherical surface of the valve ball (2) are respectively arranged in local areas on the upper end surface of the lower valve seat (3) and the lower end surface of the upper valve seat (4), the lower valve seat (3) and the upper valve seat (4) are sequentially in sealing fit and embedded in the inner cavity of the valve body (1), the valve ball (2) is in a limit mode through the matching of the lower valve seat (3) and the upper valve seat (4), the lower valve seat (3) and the upper valve seat (4) are arranged between the lower valve seat (3) and the upper valve seat (4) in a cylindrical shape, the upper spherical surface (4) can be correspondingly matched with the arc-shaped spherical surface (2), the upper spherical surface (2) and the lower spherical surface (2) and the upper spherical surface (2) respectively, insert holes of limit shoulders are respectively formed at symmetrical positions at two radial ends of the valve body (1), the limit shoulders limit the positions, the rotary bolts (5) penetrate through the side walls of the valve body (1) respectively and are inserted in the insert holes in a sealing fit manner with the insert holes, the inner side ends of the rotary bolts are respectively connected with key pin structures arranged on the valve ball (2) in a fit manner, and the outer side ends of the rotary bolts are respectively provided with a turning control structure; the method is characterized in that:
a two-stage valve port is arranged in the inner cavity of the valve body (1), and each valve port comprises: the valve comprises a valve ball (2), a lower valve seat (3), an upper valve seat (4) and a rotary bolt (5).
2. The externally positioned plug valve with dual ports for dual side balance control opening and closing as set forth in claim 1, wherein: a limiting block (6) is arranged in an embedding hole of the valve body (1), a limiting groove which is correspondingly matched with the limiting block (6) in structure is formed in the rotary bolt (5), the rotation angle amplitude of the rotary bolt (5) is limited to 90 degrees, and limiting points at two ends are kept to be respectively corresponding to the on-state and the off-state of an inner cavity channel of the valve body (1).
3. The externally positioned plug valve with dual ports for dual side balance control opening and closing as set forth in claim 2 wherein: a cross knot (7) is arranged between the corresponding ends of the rotary bolt (5) and the valve ball (2), and the rotary bolt (5) and the valve ball (2) are connected with each other by utilizing the cross knot (7) to be in transition.
4. An externally positioned plug valve with dual ports for dual side balance control opening and closing as set forth in claim 3 wherein: the rotary bolts (5) arranged on the two-stage valve ports are respectively arranged along two mutually perpendicular radial intersecting directions of the valve body (1), so that 4 control points for opening and closing the valve ports are uniformly distributed on the outer circumferential surface of the valve body (1).
5. An externally positioned plug valve with dual port double side balance controlled opening and closing as in any of claims 1 to 4, wherein: one valve port is arranged in a mechanical power control mode, and the other valve port is kept in a manual control mode.
6. The externally positioned plug valve with dual ports for dual side balance control opening and closing as set forth in claim 5, wherein: an antifriction pad (8) is arranged between the rotary bolt (5) and the matching surface of the limiting shoulder in the embedding hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222397373.XU CN218894999U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve with double valve ports capable of controlling opening and closing in bilateral balance mode |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222397373.XU CN218894999U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve with double valve ports capable of controlling opening and closing in bilateral balance mode |
| CN202221095169.6U CN218031527U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve capable of being opened and closed in bilateral balance control mode for oil field |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221095169.6U Division CN218031527U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve capable of being opened and closed in bilateral balance control mode for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218894999U true CN218894999U (en) | 2023-04-21 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221095169.6U Active CN218031527U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve capable of being opened and closed in bilateral balance control mode for oil field |
| CN202222397373.XU Active CN218894999U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve with double valve ports capable of controlling opening and closing in bilateral balance mode |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221095169.6U Active CN218031527U (en) | 2022-05-10 | 2022-05-10 | External positioning plug valve capable of being opened and closed in bilateral balance control mode for oil field |
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| Country | Link |
|---|---|
| CN (2) | CN218031527U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117005819B (en) * | 2023-10-07 | 2024-01-09 | 牡丹江通用石油工具有限公司 | Kelly no-pressure-difference switchable plug valve |
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- 2022-05-10 CN CN202221095169.6U patent/CN218031527U/en active Active
- 2022-05-10 CN CN202222397373.XU patent/CN218894999U/en active Active
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| Publication number | Publication date |
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| CN218031527U (en) | 2022-12-13 |
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Effective date of registration: 20240702 Address after: 157009 Yangming District, Mudanjiang City, Heilongjiang Province, Russia Economic and Technological Development Zone Patentee after: MUDANJIANG XINBEIFANG PETROLEUM DRILLING TOOL Co.,Ltd. Country or region after: China Address before: Room 315, Comprehensive Office Building, Science and Technology Incubation Base, Yangming Economic Development Zone, No. 160, Yumin Road, Yangming District, Mudanjiang City, Heilongjiang Province, 157009 Patentee before: Mudanjiang Kunde Machinery Manufacturing Technology Development Co.,Ltd. Country or region before: China |