CN121138776A - A leak-proof wellhead gate valve for oil extraction - Google Patents
A leak-proof wellhead gate valve for oil extractionInfo
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- CN121138776A CN121138776A CN202511624784.XA CN202511624784A CN121138776A CN 121138776 A CN121138776 A CN 121138776A CN 202511624784 A CN202511624784 A CN 202511624784A CN 121138776 A CN121138776 A CN 121138776A
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Abstract
本发明公开了一种石油开采的防泄露井口闸阀，本发明涉及闸阀技术领域。本发明包括阀体，阀体的正上方设置有阀盖，且阀体的外侧面与阀盖端部固定连接，阀座在阀体的内部对称设置，且阀座的表面与阀体的内侧面滑动连接，两个阀座相互靠近的一侧均镶嵌设置有密封圈，且密封圈的表面与阀座的内侧面固定连接，闸板组件设置在两个阀座的间隔处，驱动组件设置在阀盖内部，且驱动组件的表面与阀盖的内侧面转动连接，驱动组件靠近阀体的一侧与闸板组件靠近阀盖的一侧固定连接，两个阀座的密封圈与闸板组件表面接触，对阀座进行遮挡，实现更好的密封，避免产生泄露。
This invention discloses a leak-proof wellhead gate valve for oil extraction, relating to the field of gate valve technology. The invention includes a valve body with a valve cover positioned directly above it. The outer side of the valve body is fixedly connected to the end of the valve cover. Valve seats are symmetrically arranged inside the valve body, with their surfaces slidably connected to the inner side of the valve body. Sealing rings are embedded on the sides of the two valve seats that are close to each other, and the surfaces of the sealing rings are fixedly connected to the inner sides of the valve seats. A gate assembly is positioned at the interval between the two valve seats. A drive assembly is positioned inside the valve cover, with its surface rotatably connected to the inner side of the valve cover. The side of the drive assembly closest to the valve body is fixedly connected to the side of the gate assembly closest to the valve cover. The sealing rings of the two valve seats contact the surface of the gate assembly, shielding the valve seats and achieving better sealing to prevent leakage.
Description
Technical Field
The invention relates to the technical field of gate valves, in particular to an anti-leakage wellhead gate valve for petroleum exploitation.
Background
The wellhead gate valve for oil exploitation is a key control valve arranged on an oil-water well wellhead device and used for controlling the circulation and interception of fluid in a shaft, has the characteristics of strong bearing capacity, reliable sealing, corrosion resistance, wear resistance and the like, is integrated with wellhead pipelines and equipment by adopting a flange or clamp connection mode, and is an important mechanical component for guaranteeing the safety of oil and gas exploitation and controlling the flow of underground fluid, wherein the operation mode comprises manual operation, electric operation, hydraulic operation and the like, is suitable for complex working conditions such as high pressure, high sulfur content, sand content and the like, and realizes a full-open or full-closed state by lifting and lowering a flashboard;
After the existing wellhead gate valve is used for a long time, the inner pipeline of the gate valve is eroded by impurities in crude oil to generate abrasion, so that leakage is caused, and therefore, the leakage-proof wellhead gate valve for petroleum exploitation is provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides an anti-leakage wellhead gate valve for petroleum exploitation, which comprises:
the valve body is provided with a valve cover right above the valve body, and the outer side surface of the valve body is fixedly connected with the end part of the valve cover;
The flashboard mechanism is arranged inside the valve body, and the surface of the flashboard mechanism is fixedly connected with the inner side surface of the valve body;
The anti-blocking mechanism is fixedly connected to the end part of the valve body, is arranged at one end of the valve body, into which petroleum flows, and can filter sand, wax, colloid and other impurities in crude oil, so that the impurities are avoided, and when flowing along with fluid at a high speed, the sealing surfaces of the flashboard and the valve seat can be scoured, so that the sealing is invalid, and leakage is caused;
wherein, flashboard mechanism includes:
The valve seats are symmetrically arranged in the valve body, the surfaces of the valve seats are in sliding connection with the inner side surface of the valve body, sealing rings are embedded in one sides, close to each other, of the two valve seats, and the surfaces of the sealing rings are fixedly connected with the inner side surface of the valve seat;
A shutter assembly disposed at a spacing of the two valve seats;
The driving assembly is arranged in the valve cover, the surface of the driving assembly is rotationally connected with the inner side surface of the valve cover, and one side, close to the valve body, of the driving assembly is fixedly connected with one side, close to the valve cover, of the flashboard assembly;
Starting the drive assembly, driving the flashboard subassembly to go up and down, the flashboard subassembly rises, and the gate valve is opened, and fluid passes through the flashboard subassembly, and the flashboard subassembly descends, and the flashboard subassembly blocks the valve body, and the gate valve is closed, and the sealing washer and the flashboard subassembly surface contact of two disk seats shelter from the disk seat, realize better sealedly, avoid producing and reveal.
Further, the sealing washer is made by the rubber material, the sealing washer sets up to regular wave, just the sealing washer wave is encircleed into the ring, the sealing washer of rubber material can increase the frictional force with flashboard subassembly, obtain better sealed effect, realize better leak protection effect, and the wave is encircleed into the sealing washer of ring, when the disk seat receives excessive pressure to produce the deformation, wave structure can produce to stretch, cause the sealing washer fracture when avoiding the disk seat to warp, thereby avoid influencing the sealing effect of sealing washer, damage at the choke valve of christmas tree, when causing crude oil pressure to rise abnormally, avoid causing the sealing washer fracture and produce and leak.
Further, the flashboard subassembly includes the initiative flashboard, one side that the anti-blocking mechanism was kept away from to the initiative flashboard is provided with driven flashboard, the equal fixedly connected with coupling assembling in both sides of initiative flashboard just coupling assembling keeps away from one side of anti-blocking mechanism and the side fixed connection of driven flashboard, just the one end that the initiative flashboard is close to the valve gap is longer than driven flashboard, the one end that the initiative flashboard kept away from the valve gap is short with driven flashboard, just one side that the initiative flashboard is close to each other has class V-arrangement gap, drives the initiative flashboard and goes up and down, drives coupling assembling and goes up and down, drives driven flashboard and goes up and down, and the synchronization of initiative flashboard, coupling assembling, driven flashboard rises, realizes opening of gate valve, when the gate valve is closed, initiative flashboard, coupling assembling, driven flashboard falls in step earlier, and then driven flashboard is kept away from the one end of valve gap by support, coupling assembling warp, changes the direction of action of pressure force, makes initiative flashboard and driven flashboard keep away from each other, finally one side that initiative flashboard and driven keep away from each other respectively and lean on one side that two disk seats are close each other, realize more inseparable sealedly, and simultaneously when the gate valve is opened, the gate can not produce friction with one side that the driven gate seat is close each other, can not produce friction, can avoid producing when wearing and tearing.
Further, one side fixedly connected with shell that the valve gap was kept away from to the valve body, the medial surface bottom fixedly connected with kicking block of shell, the cell body has been seted up to one side that the driven flashboard was kept away from to the kicking block, the cell body sets up to triangle-shaped, just one side evenly distributed that driven flashboard was kept away from to the cell body kicking block, when the gate valve was opened, crude oil at first gets into the valve body through anti-blocking mechanism, it is full of the shell afterwards, finally get into the other end of valve body through initiative flashboard and driven flashboard, finally leave the valve body, the cell body of seting up in kicking block bottom, can constitute the intercommunication ware when crude oil got into the inside initial stage of shell, i.e. crude oil does not overflow the kicking block, ensure the steady rising of crude oil, reduce the wearing and tearing of crude oil to the pipe wall, increase of service life, and triangle-shaped cell body structure is more stable, can avoid producing the deformation, avoid influencing the intercommunication effect, the same reason, when the gate valve is closed, the crude oil contacts with the kicking block, constitute deeper intercommunication ware, the constitution of crude oil on both sides when the gate valve is closed, avoid one side is shallow, thereby avoid the crude oil to volatilize in the time of shallow part of crude oil, when avoiding long-time shut down, thereby avoiding the inside the shell to produce the dry-up and stop.
Further, coupling assembling includes the initiative lug, the side symmetry of initiative lug sets up at the initiative flashboard, two the interval department of initiative lug is provided with driven lug, just driven lug and driven flashboard's side fixed connection, driven lug outside cover is equipped with the connecting rod, driven lug's surface and the medial surface fixed connection of connecting rod, just driven lug sets up at the middle part of connecting rod, the both ends of connecting rod respectively with the fixed surface connection of two initiative lugs, drive initiative flashboard removes, drive two initiative lugs and remove, drive the connecting rod and remove, drive driven lug and remove, finally drive driven flashboard and remove, when driven flashboard contact kicking block, driven flashboard is static, and the initiative flashboard continues to move down, and the connecting rod produces the deformation, drives initiative lug and driven lug and keeps away from each other, finally drives initiative flashboard and driven flashboard and keeps away from each other, realizes more accurate sealing.
Further, the drive assembly includes the threaded rod, the lateral surface threaded connection of threaded rod has the screw thread board, the lateral surface of screw thread board and the medial surface fixed connection of valve gap, the one end that the valve gap was kept away from to the threaded rod is provided with the stopper, the surface of stopper is rotated with the medial surface of threaded rod and is connected, the one end that the stopper is close to the valve body runs through the threaded rod, just the stopper is located the outside one end of threaded rod and extends to the inside of initiative flashboard, just the surface of stopper and the medial surface sliding connection drive threaded rod of initiative flashboard rotate, and the threaded rod is rotatory inside the screw thread board to make the threaded rod produce the lift, drive the stopper and go up and down, the stopper can be at the inside rotation of threaded rod simultaneously, does not produce the rotation when guaranteeing that initiative flashboard goes up and down smoothly, and the initiative flashboard produces spacing slip simultaneously, ensures that the initiative flashboard is close the disk smoothly.
Further, the dovetail groove is formed in the inner side face of the threaded rod, the dovetail block is connected to the inner side face of the dovetail groove in a sliding mode, the valve rod is fixedly connected to one side, close to the center of the threaded rod, of the dovetail block, the surface of the valve rod is connected with the inner side face of the threaded rod in a sliding mode, the valve rod is driven to rotate, the dovetail block is driven to rotate, the threaded rod is driven to rotate, and meanwhile when the threaded rod rotates, the dovetail block slides in the dovetail groove, and smooth lifting of the driving flashboard is guaranteed.
Further, the anti-blocking mechanism comprises a flange pipe, the end part of the flange pipe is fixedly connected with the end part of the valve body through a bolt, one end, far away from the valve body, of the flange pipe is fixedly connected with the Christmas tree through the bolt, crude oil enters the flange pipe through the Christmas tree, and then enters the valve body through the flange pipe.
Further, the inside of flange pipe is provided with the filter plate, the both sides of filter plate extend to inside the flange pipe, just the medial surface of flange pipe and the fixed surface of filter plate are connected, one side that the valve gap was kept away from to the filter plate is to one side slope setting of keeping away from the valve body, and the filter plate can filter the impurity in the crude oil, avoids impurity along with the flow of crude oil, erodees the gate valve inside, avoids producing wearing and tearing, avoids revealing because wearing and tearing produce the filter plate of revealing, and the slope setting, and the impurity is blocked the back, can follow the inclined plane landing, avoids the filtration pore of filter plate to be blocked up completely, can still ensure the passage of crude oil when filtering high concentration impurity, ensures the smooth operation of gate valve.
Further, the filter plate is located the inside both sides of flange pipe and all runs through and is provided with the hexagonal post, just the surface of hexagonal post and the medial surface fixed connection of filter plate, just the hexagonal post is located the inside surface evenly distributed of flange pipe at the filter plate and has a plurality of, just the both ends of hexagonal post and the medial surface fixed connection of flange pipe, the setting of hexagonal post can be spacing to the filter plate, avoids the filter plate to produce not hard up under the washing of crude oil.
The invention has the beneficial effects that:
1. According to the invention, the gate mechanism is arranged, the gate assembly blocks the valve body, the gate valve is closed, the sealing rings of the two valve seats are in surface contact with the gate assembly, the valve seats are shielded, better sealing is realized, leakage is avoided, the sealing rings made of rubber materials can increase friction force with the gate assembly, better sealing effect is obtained, better leakage-proof effect is realized, the sealing rings which are wound into a ring in a wave shape are prevented, when the valve seats are deformed due to excessive pressure, the wave-shaped structure can be unfolded, the sealing rings are prevented from being broken when the valve seats are deformed, so that the sealing effect of the sealing rings is prevented from being influenced, and when the throttle valve of the christmas tree is damaged, crude oil pressure is abnormally increased, the sealing rings are prevented from being broken to generate leakage.
2. According to the invention, the gate plate assembly is arranged, the connecting assembly deforms, the acting direction of pressure force is changed, the driving gate plate and the driven gate plate are mutually far away, and finally, the mutually far away sides of the driving gate plate and the driven gate plate respectively lean against the mutually close sides of the two valve seats, so that more tight sealing is realized, meanwhile, when the gate valve is opened, the mutually close sides of the driving gate plate and the driven gate plate as well as the two valve seats are not contacted, friction is not generated, abrasion generated when the gate valve is opened and closed can be avoided, and gate valve leakage caused by abrasion is avoided.
3. According to the invention, the ejector block is arranged, the groove body is arranged at the bottom of the ejector block, so that the communicating vessel can be formed at the initial stage of entering the shell when crude oil does not overflow the ejector block, the smooth rising of the crude oil is ensured, the abrasion of the crude oil to the pipe wall is reduced, the service life is prolonged, the triangular groove body is more stable in structure, deformation can be avoided, the communicating effect is prevented from being influenced, the driven flashboard contacts with the ejector block when the gate valve is closed, a deeper communicating vessel is formed, the average crude oil at two sides of the gate valve is ensured when the gate valve is closed, the shallow crude oil at one side is avoided, and the light component volatilization in the crude oil at the shallow position is prevented from generating a dry knot when the gate valve is stopped for a long time, so that the inside of the shell is prevented from being blocked, and the lifting of the driven flashboard is prevented from being influenced.
4. According to the invention, the driving assembly is arranged, the limiting block can rotate in the threaded rod, so that the driving flashboard is ensured not to rotate when the driving flashboard is lifted smoothly, meanwhile, the driving flashboard and the limiting block generate limiting sliding, the driving flashboard is ensured to be smoothly close to the valve seat, and meanwhile, when the threaded rod rotates, the dovetail block slides in the dovetail groove, and the driving flashboard is ensured to be lifted smoothly.
5. According to the invention, the anti-blocking mechanism is arranged, so that impurities in crude oil can be filtered, the impurities are prevented from flowing along with the crude oil, scouring is performed in the gate valve, abrasion is avoided, leakage caused by abrasion is avoided, the obliquely arranged filter plate can slide along the inclined plane after the impurities are blocked, the filter holes of the filter plate are prevented from being completely blocked, the crude oil can still be ensured to pass through when the high-concentration impurities are filtered, smooth running of the gate valve is ensured, the filter plate can be limited by arranging the hexagonal columns, and loosening of the filter plate under the scouring of the crude oil is avoided.
Drawings
FIG. 1 is a schematic diagram of a leak-proof wellhead gate valve for oil exploitation;
FIG. 2 is a schematic view of another view of the leak-proof wellhead gate valve of the present invention for oil recovery;
FIG. 3 is a schematic view of the valve body structure of the present invention;
FIG. 4 is a schematic view of a valve seat structure according to the present invention;
FIG. 5 is a schematic view of a shutter mechanism according to the present invention;
FIG. 6 is a schematic view of a connection assembly according to the present invention;
FIG. 7 is a schematic diagram of a driving assembly according to the present invention;
FIG. 8 is a schematic cross-sectional view of a threaded rod according to the present invention;
fig. 9 is a schematic structural view of an anti-blocking mechanism according to the present invention.
1, A valve body, 2, a valve cover, 3, a gate plate mechanism, 31, a valve seat, 32, a gate plate assembly, 321, a driving gate plate, 322, a driven gate plate, 323, a connecting assembly, 3231, a driving lug, 3232, a connecting rod, 3233, a driven lug, 324, a shell, 325, a top block, 326, a groove body, 33, a driving assembly, 331, a threaded rod, 332, a threaded plate, 333, a valve rod, 334, a dovetail groove, 335, a dovetail block, 336, a limiting block, 34, a sealing ring, 4, an anti-blocking mechanism, 41, a flange pipe, 42, a filter plate, 43 and a hexagonal column.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Embodiment 1 referring to fig. 1-8, the present invention is an anti-leakage wellhead gate valve for oil exploitation, comprising:
the valve body 1, the valve cover 2 is arranged right above the valve body 1, and the outer side surface of the valve body 1 is fixedly connected with the end part of the valve cover 2;
the flashboard mechanism 3 is arranged inside the valve body 1, and the surface of the flashboard mechanism 3 is fixedly connected with the inner side surface of the valve body 1;
The anti-blocking mechanism 4 is fixedly connected to the end part of the valve body 1, the anti-blocking mechanism 4 is arranged at one end of the valve body 1, into which petroleum flows, and the anti-blocking mechanism 4 is arranged to filter sand, wax, colloid and other impurities in crude oil, so that the impurities are avoided, and when flowing along with fluid at a high speed, the sealing surfaces of the flashboard and the valve seat 31 are scoured, so that the sealing is invalid and leakage is caused;
Wherein, flashboard mechanism 3 includes:
the valve seats 31 are symmetrically arranged in the valve body 1, the surfaces of the valve seats 31 are in sliding connection with the inner side surface of the valve body 1, sealing rings 34 are embedded on one sides of the two valve seats 31, which are close to each other, and the surfaces of the sealing rings 34 are fixedly connected with the inner side surface of the valve seat 31;
a shutter assembly 32, the shutter assembly 32 being disposed at a spacing of the two valve seats 31;
the driving assembly 33 is arranged in the valve cover 2, the surface of the driving assembly 33 is rotationally connected with the inner side surface of the valve cover 2, and one side of the driving assembly 33, which is close to the valve body 1, is fixedly connected with one side of the flashboard assembly 32, which is close to the valve cover 2;
the driving assembly 33 is started, the driving assembly 33 drives the flashboard assembly 32 to ascend, the flashboard assembly 32 ascends, the gate valve is opened, fluid passes through the flashboard assembly 32, the flashboard assembly 32 descends, the flashboard assembly 32 blocks the valve body 1, the gate valve is closed, the sealing rings 34 of the two valve seats 31 are in surface contact with the flashboard assembly 32, the valve seats 31 are shielded, better sealing is realized, and leakage is avoided.
The sealing washer 34 is made by the rubber material, and sealing washer 34 sets up to regular wave, and sealing washer 34 wave ring formation ring, rubber material's sealing washer 34 can increase the frictional force with flashboard subassembly 32, obtain better sealed effect, realize better leak protection effect, and wave ring formation sealing washer 34, when disk seat 31 receives excessive pressure to produce the deformation, wave structure can produce to stretch, cause sealing washer 34 fracture when avoiding disk seat 31 to warp, thereby avoid influencing sealing washer 34's sealed effect, damage at the choke valve of christmas tree, when causing crude oil pressure to rise abnormally, avoid causing sealing washer 34 fracture and produce the leakage.
The flashboard subassembly 32 includes initiative flashboard 321, the one side that the mechanism 4 was prevented in the anti-blocking is kept away from to initiative flashboard 321 is provided with driven flashboard 322, the equal fixedly connected with coupling assembling 323 in both sides of initiative flashboard 321, and coupling assembling 323 keep away from the one side that prevents the mechanism 4 and the side fixed connection of driven flashboard 322, and the one end that initiative flashboard 321 is close to valve gap 2 is longer than driven flashboard 322, the one end that initiative flashboard 321 kept away from valve gap 2 is short with driven flashboard 322, and one side that initiative flashboard 321 and driven flashboard 322 are close to each other has the class V-arrangement gap, drive initiative flashboard 321 goes up and down, drive coupling assembling 323 goes up and down, drive driven flashboard 322 goes up and down, initiative flashboard 321, coupling assembling 323, driven flashboard 322 synchronous decline earlier when realizing the gate valve, then driven flashboard 322 is kept away from the one end of valve gap 2 by the support, coupling assembling 323 warp, make initiative flashboard 321 and driven flashboard 322 keep away from each other, finally, one side that the mutual keeping away from of initiative flashboard 321 and driven flashboard 322 is kept away from each other is by two disk seat 31 respectively, realize more closely sealing, simultaneously when the gate valve 321 is opened, the gate valve 321 and two are close to be close to two and two valve seat 31 are close to each other can not produce the friction and wear and tear can avoid when two to produce the mutual side and tear.
The valve body 1 is kept away from one side fixedly connected with shell 324 of valve gap 2, the medial surface bottom fixedly connected with kicking block 325 of shell 324, the cell body 326 has been seted up to one side that the kicking block 325 kept away from driven flashboard 322, the cell body 326 sets up to triangle-shaped, and one side evenly distributed that driven flashboard 322 was kept away from to cell body 326 kicking block 325, when the gate valve was opened, crude oil at first gets into valve body 1 through anti-blocking mechanism 4, be full of shell 324 afterwards, finally get into the other end of valve body 1 through initiative flashboard 321 and driven flashboard 322, finally leave valve body 1, the cell body 326 of seting up in kicking block 325 bottom, can be in the initial stage of crude oil entering shell 324 inside, i.e. the crude oil does not overflow kicking block 325, constitute the communicator, ensure the steady rising of crude oil, reduce the wearing and tearing of crude oil, increase of life, and triangle-shaped cell body 326 structure is more stable, can avoid producing the deformation, avoid influencing the intercommunication effect, when the gate valve is closed, driven flashboard 322 contacts with the kicking block, constitute deeper communicator, the constitution of communicator, can ensure the average of crude oil of both sides when closing, avoid one side shallow side, thereby avoiding the crude oil to volatilize in the shallow shutdown place, the inside the production of the shell 322 is avoided to be volatilized in the production of the main board.
The connection assembly 323 comprises a driving lug 3231, the driving lug 3231 is symmetrically arranged on the side face of the driving flashboard 321, a driven lug 3233 is arranged at the interval of the two driving lugs 3231, the driven lug 3233 is fixedly connected with the side face of the driven flashboard 322, a connecting rod 3232 is sleeved outside the driven lug 3233, the surface of the driven lug 3233 is fixedly connected with the inner side face of the connecting rod 3232, the driven lug 3233 is arranged in the middle of the connecting rod 3232, two ends of the connecting rod 3232 are respectively fixedly connected with the surfaces of the two driving lugs 3231, the driving flashboard 321 is driven to move, the two driving lugs 3231 are driven to move, the connecting rod 3232 is driven to move, the driven lug 3233 is driven to move, the driven flashboard 322 is finally driven to move, when the driven flashboard 322 contacts the top block 325, the driven flashboard 322 is static, the driving flashboard 321 continues to move downwards, the connecting rod 3232 deforms, the driving lugs 3231 and the driven lugs 3233 are driven to be away from each other, and the driving flashboard 321 and the driven flashboard 322 are finally driven to be separated from each other, so that more precise sealing is realized.
The drive assembly 33 includes threaded rod 331, threaded rod 331's lateral surface threaded connection has screw plate 332, screw plate 332's lateral surface and the medial surface fixed connection of valve gap 2, threaded rod 331 is kept away from valve gap 2's one end and is provided with stopper 336, stopper 336's surface and threaded rod 331's medial surface rotation are connected, stopper 336 is close to the one end of valve body 1 and runs through threaded rod 331, and stopper 336 is located the outside one end of threaded rod 331 and extend to the inside of initiative flashboard 321, and stopper 336's surface and the medial surface sliding connection of initiative flashboard 321 drive threaded rod 331 rotate, threaded rod 331 is at the inside rotation of screw plate 332, thereby make threaded rod 331 produce the lift, drive stopper 336 lift, stopper 336 can be at the inside rotation of threaded rod 331, ensure not to produce the rotation when initiative flashboard 321 goes up and down smoothly, initiative flashboard 321 produces spacing slip with stopper 336 simultaneously, ensure that initiative flashboard 321 is close valve seat 31 smoothly.
The dovetail groove 334 has been seted up to the medial surface of threaded rod 331, and the medial surface sliding connection of dovetail groove 334 has the dovetail piece 335, and one side that the dovetail piece 335 is close to threaded rod 331 center department is fixedly connected with valve rod 333, and the surface of valve rod 333 and the medial surface sliding connection of threaded rod 331, and drive valve rod 333 is rotatory, drives the dovetail piece 335 rotation, drives threaded rod 331 rotation, and when threaded rod 331 is rotatory simultaneously, the dovetail piece 335 slides in dovetail groove 334 inside, ensures the smooth lift of initiative flashboard 321.
In embodiment 2, referring to fig. 1-9, the anti-blocking mechanism 4 includes a flange pipe 41, an end of the flange pipe 41 is fixedly connected with an end of the valve body 1 through bolts, and an end of the flange pipe 41 away from the valve body 1 is fixedly connected with a christmas tree through bolts, crude oil enters the flange pipe 41 through the christmas tree, and then enters the valve body 1 through the flange pipe 41.
The inside of flange pipe 41 is provided with filter plate 42, the both sides of filter plate 42 extend to inside the flange pipe 41, and the medial surface of flange pipe 41 and filter plate 42's fixed surface are connected, one side that valve gap 2 was kept away from to the filter plate 42 is to the one side slope setting of keeping away from valve body 1, filter plate 42 can filter the impurity in the crude oil, avoid impurity to wash out the gate valve inside along with the flow of crude oil, avoid producing wearing and tearing, avoid revealing because wearing and tearing, and filter plate 42 that the slope set up, the impurity is blocked the back, can follow the inclined plane landing, avoid filter plate 42's filtration pore to be stopped up completely, can still ensure the passage of crude oil when filtering high concentration impurity, ensure the smooth operation of gate valve.
The filter plate 42 is located the inside both sides of flange pipe 41 and all runs through and is provided with hexagonal post 43, and the surface of hexagonal post 43 and the medial surface fixed connection of filter plate 42, and hexagonal post 43 is located the inside surface evenly distributed of flange pipe 41 at filter plate 42 and has a plurality of, and the both ends of hexagonal post 43 and the medial surface fixed connection of flange pipe 41, and the setting of hexagonal post 43 can carry out spacingly to filter plate 42, avoids filter plate 42 to produce not hard up under the washing of crude oil.
During the use, crude oil gets into flange pipe 41 through the christmas tree, afterwards get into inside valve body 1 through flange pipe 41, filter the impurity in the crude oil by filter plate 42, be full of shell 324 afterwards, finally get into the other end of valve body 1 through initiative flashboard 321 and driven flashboard 322, finally leave valve body 1, drive valve rod 333 is rotatory, drive forked tail piece 335 rotation, drive threaded rod 331 rotation, threaded rod 331 is rotatory inside screw plate 332, thereby make threaded rod 331 produce the lift, drive stopper 336 lift, stopper 336 is rotatory in threaded rod 331 inside, stopper 336 drives initiative flashboard 321 and removes, drive two initiative lug 3231 and remove, drive connecting rod 3232 and remove, drive driven lug 3233 and remove, finally drive driven flashboard 322 and remove, initiative flashboard 321 goes up and down, drive coupling assembling 323 goes up and down, drive driven flashboard 322 goes up and down, initiative flashboard 321, coupling assembling 323, driven flashboard 322 synchronous decline earlier, then, driven flashboard 322 contact top piece 325 is static, initiative flashboard 321 continues to move down, connecting rod 3232 produces the deformation, drive initiative lug 3231 and driven flashboard 321 and driven flashboard 322 are kept away from each other closely to keep away from each other with each other, finally, realize that two driven flashboard 322 are closely kept away from each other, and one side is kept away from each other, the mutual seal is kept away from each other, thereby realizing the mutual seal between initiative and the driven flashboard 322.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
1. An anti-leakage wellhead gate valve for oil exploitation, comprising:
the valve comprises a valve body (1), wherein a valve cover (2) is arranged right above the valve body (1), and the outer side surface of the valve body (1) is fixedly connected with the end part of the valve cover (2);
the flashboard mechanism (3), the flashboard mechanism (3) is arranged inside the valve body (1), and the surface of the flashboard mechanism (3) is fixedly connected with the inner side surface of the valve body (1);
the anti-blocking mechanism (4) is fixedly connected to the end part of the valve body (1), and the anti-blocking mechanism (4) is arranged at one end of the valve body (1) into which petroleum flows;
wherein the shutter mechanism (3) includes:
The valve seats (31) are symmetrically arranged in the valve body (1), the surfaces of the valve seats (31) are in sliding connection with the inner side surfaces of the valve body (1), sealing rings (34) are embedded and arranged on one sides, close to each other, of the two valve seats (31), and the surfaces of the sealing rings (34) are fixedly connected with the inner side surfaces of the valve seats (31);
a shutter assembly (32), the shutter assembly (32) being disposed at a spacing of two valve seats (31);
the valve cover comprises a valve body (1) and a valve plate assembly (32), and is characterized in that the valve body (2) is provided with a valve plate, the valve plate assembly (2) is arranged on the inner side of the valve cover, the valve plate assembly (2) is arranged on the outer side of the valve body, the valve plate assembly (32) is arranged on the inner side of the valve cover, and the valve plate assembly is fixedly connected with the valve plate assembly (33).
2. The leakage-proof wellhead gate valve of claim 1 wherein the seal ring (34) is made of rubber material, the seal ring (34) is provided in a regular wave shape, and the seal ring (34) is wound in a ring shape in a wave shape.
3. The leakage-proof wellhead gate valve for oil exploitation according to claim 2, wherein the gate assembly (32) comprises a driving gate (321), a driven gate (322) is arranged on one side, away from the anti-blocking mechanism (4), of the driving gate (321), connecting assemblies (323) are fixedly connected to two sides of the driving gate (321), one side, away from the anti-blocking mechanism (4), of the connecting assemblies (323) is fixedly connected with the side face of the driven gate (322), one end, close to the valve cover (2), of the driving gate (321) is longer than the driven gate (322), one end, away from the valve cover (2), of the driving gate (321) is short and the driven gate (322), and a V-shaped gap is formed on one side, close to each other, of the driving gate (321) and the driven gate (322).
4. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 3, wherein a shell (324) is fixedly connected to one side, far away from a valve cover (2), of the valve body (1), a top block (325) is fixedly connected to the bottom of the inner side surface of the shell (324), a groove body (326) is formed in one side, far away from a driven gate plate (322), of the top block (325), the groove body (326) is triangular, and one side, far away from the driven gate plate (322), of the groove body (326) is evenly distributed.
5. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 4, wherein the connecting component (323) comprises a driving lug (3231), the driving lug (3231) is symmetrically arranged on the side face of the driving gate plate (321), a driven lug (3233) is arranged at the interval of the two driving lugs (3231), the driven lug (3233) is fixedly connected with the side face of the driven gate plate (322), a connecting rod (3232) is sleeved outside the driven lug (3233), the surface of the driven lug (3233) is fixedly connected with the inner side face of the connecting rod (3232), the driven lug (3233) is arranged in the middle of the connecting rod (3232), and two ends of the connecting rod (3232) are respectively fixedly connected with the surfaces of the two driving lugs (3231).
6. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 5, wherein the driving assembly (33) comprises a threaded rod (331), the outer side surface of the threaded rod (331) is in threaded connection with a threaded plate (332), the outer side surface of the threaded plate (332) is fixedly connected with the inner side surface of the valve cover (2), one end of the threaded rod (331) far away from the valve cover (2) is provided with a limiting block (336), the surface of the limiting block (336) is in rotary connection with the inner side surface of the threaded rod (331), one end of the limiting block (336) close to the valve body (1) penetrates through the threaded rod (331), one end of the limiting block (336) located outside the threaded rod (331) extends to the inside of the driving gate (321), and the surface of the limiting block (336) is in sliding connection with the inner side surface of the driving gate (321) to drive the threaded rod (331) to rotate.
7. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 6, wherein a dovetail groove (334) is formed in the inner side surface of the threaded rod (331), a dovetail block (335) is slidably connected to the inner side surface of the dovetail groove (334), a valve rod (333) is fixedly connected to one side of the dovetail block (335) close to the center of the threaded rod (331), and the surface of the valve rod (333) is slidably connected with the inner side surface of the threaded rod (331).
8. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 7, wherein the anti-blocking mechanism (4) comprises a flange pipe (41), the end of the flange pipe (41) is fixedly connected with the end of the valve body (1) through bolts, and the end of the flange pipe (41) far away from the valve body (1) is fixedly connected with the christmas tree through bolts.
9. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 8, wherein a filter plate (42) is arranged in the flange pipe (41), two sides of the filter plate (42) extend into the flange pipe (41), the inner side surface of the flange pipe (41) is fixedly connected with the surface of the filter plate (42), and one side of the filter plate (42) away from the valve cover (2) is obliquely arranged to one side away from the valve body (1).
10. The leakage-proof wellhead gate valve for petroleum exploitation according to claim 9, wherein the filter plate (42) is provided with six side columns (43) in a penetrating manner on two sides of the inside of the flange pipe (41), the surfaces of the six side columns (43) are fixedly connected with the inner side surfaces of the filter plate (42), the six side columns (43) are uniformly distributed on the surfaces of the filter plate (42) inside the flange pipe (41), and two ends of the six side columns (43) are fixedly connected with the inner side surfaces of the flange pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511624784.XA CN121138776A (en) | 2025-11-07 | 2025-11-07 | A leak-proof wellhead gate valve for oil extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511624784.XA CN121138776A (en) | 2025-11-07 | 2025-11-07 | A leak-proof wellhead gate valve for oil extraction |
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| Publication Number | Publication Date |
|---|---|
| CN121138776A true CN121138776A (en) | 2025-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511624784.XA Pending CN121138776A (en) | 2025-11-07 | 2025-11-07 | A leak-proof wellhead gate valve for oil extraction |
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| Country | Link |
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| CN (1) | CN121138776A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211273835U (en) * | 2019-09-16 | 2020-08-18 | 山东展铜合金科技有限公司 | Valve anti-blocking device |
| CN114198518A (en) * | 2022-01-18 | 2022-03-18 | 克里特集团有限公司 | Parallel double-gate valve |
| CN116498262A (en) * | 2023-06-07 | 2023-07-28 | 袁木发 | Wellhead gate valve for petroleum exploitation |
| CN118669091A (en) * | 2024-08-22 | 2024-09-20 | 江苏苏盐阀门机械有限公司 | A prevent leaking well head gate valve for oil development |
| CN119435741A (en) * | 2024-12-24 | 2025-02-14 | 盐城奥凯明通阀门有限公司 | A flat gate valve |
-
2025
- 2025-11-07 CN CN202511624784.XA patent/CN121138776A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211273835U (en) * | 2019-09-16 | 2020-08-18 | 山东展铜合金科技有限公司 | Valve anti-blocking device |
| CN114198518A (en) * | 2022-01-18 | 2022-03-18 | 克里特集团有限公司 | Parallel double-gate valve |
| CN116498262A (en) * | 2023-06-07 | 2023-07-28 | 袁木发 | Wellhead gate valve for petroleum exploitation |
| CN118669091A (en) * | 2024-08-22 | 2024-09-20 | 江苏苏盐阀门机械有限公司 | A prevent leaking well head gate valve for oil development |
| CN119435741A (en) * | 2024-12-24 | 2025-02-14 | 盐城奥凯明通阀门有限公司 | A flat gate valve |
Non-Patent Citations (1)
| Title |
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| 山雪峰: "机械工程师岗位必读", 31 January 2023, 哈尔滨工程大学出版社, pages: 68 - 70 * |
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