CN109252826B - Blowout preventer easy to fix oil delivery pipe - Google Patents
Blowout preventer easy to fix oil delivery pipe Download PDFInfo
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- CN109252826B CN109252826B CN201811291598.9A CN201811291598A CN109252826B CN 109252826 B CN109252826 B CN 109252826B CN 201811291598 A CN201811291598 A CN 201811291598A CN 109252826 B CN109252826 B CN 109252826B
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- oil
- shell
- fixing
- hole
- blowout preventer
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
Abstract
The invention discloses a blowout preventer easy for fixing an oil conveying pipe, which comprises a shell, fixing plates arranged on two sides of the shell and a first equipment box arranged above the fixing plates, wherein a first through hole is formed in the shell; a supporting seat is arranged at the bottom of the first equipment box; a pressure relief opening is formed in the inner wall of the first through hole, and a pressure relief pipe matched with the pressure relief opening is arranged in the shell; the inner wall of the first through hole is also provided with a fixing component; the oil delivery pipe inserted into the blowout preventer is fixed through the fixing assembly, so that the oil delivery pipe is prevented from vibrating during oil delivery, the connection effect of the oil delivery pipe and the blowout preventer is prevented from being influenced, the sealing performance of the blowout preventer is improved, and blowout accidents are prevented from happening.
Description
Technical Field
The invention belongs to the technical field of leakage-proof equipment, and particularly relates to a blowout preventer capable of easily fixing an oil conveying pipe.
Background
The blowout preventer is a blowout device which is installed on a wellhead casing head and used for controlling high-pressure oil, gas and water during oil drilling. The blowout preventer is generally arranged on an oil well head, an oil conveying pipe is required to be inserted into the blowout preventer and then inserted into the oil well, and when the oil conveying pipe conveys oil, a pipe body can generate certain vibration to influence the connection effect of the oil conveying pipe and the blowout preventer, so that the sealing effect of the blowout preventer on the well head is reduced, and blowout accidents are easily caused.
Disclosure of Invention
The invention provides a blowout preventer capable of easily fixing an oil pipeline in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a blowout preventer easy to fix an oil conveying pipe comprises a shell, fixing plates arranged on two sides of the shell and a first equipment box arranged above the fixing plates, wherein a first through hole is formed in the shell, and a sealing assembly and a driving piece used for driving the sealing assembly to move are arranged in the first equipment box; a supporting seat is arranged at the bottom of the first equipment box; a pressure relief opening is formed in the inner wall of the first through hole, and a pressure relief pipe matched with the pressure relief opening is arranged in the shell; the inner wall of the first through hole is also provided with a fixing component; the oil delivery pipe inserted into the blowout preventer is fixed through the fixing assembly, so that the oil delivery pipe is prevented from vibrating during oil delivery, the connection effect of the oil delivery pipe and the blowout preventer is prevented from being influenced, the sealing performance of the blowout preventer is improved, and blowout accidents are prevented from happening.
Preferably, the fixing assembly comprises a second mounting plate arranged on the inner wall of the first through hole, a connecting spring arranged on the second mounting plate and a fastening plate fixedly connected to the connecting spring; carry out the centre gripping to defeated oil pipe through the mounting plate, make the mounting plate press from both sides tight defeated oil pipe, avoid defeated oil pipe to produce vibrations when transportation fluid, promote defeated oil pipe's stability, increase the sealed effect of preventer and defeated oil pipe junction.
Preferably, a guide plate is arranged at the top of the fastening plate, the guide plate is arranged obliquely, and the caliber of the top of the guide plate is larger than that of the bottom of the guide plate; the oil delivery pipe smoothly enters the fastening plate along the guide plate through the guide plate, and the oil delivery pipe is fixed through the fastening plate; set up baffle top bore and be greater than the baffle bottom, make defeated oil pipe change in entering into the baffle, enter into the mounting plate along the baffle inner wall in, form fixed coordination with the mounting plate.
Preferably, the bottom of the guide plate is provided with a first ball, and the fastening plate is provided with a second ball; through the arrangement of the first balls, the oil conveying pipe is easier to enter the fastening plate along the guide plate after entering the guide plate, and the blocking effect of the connecting part of the guide plate and the fastening plate on the oil conveying pipe is avoided; through the setting of second ball, reduce the frictional force of defeated oil pipe and mounting plate, make defeated oil pipe can be along mounting plate do the elevating movement.
Preferably, the two sides of the connecting spring are provided with connecting components, and each connecting component comprises a connecting seat and a movable rod arranged in the connecting seat; play limiting displacement to the mounting plate through coupling assembling, avoid defeated oil pipe to drive the mounting plate together to move when being elevating movement along the mounting plate inner wall, make connecting spring take place to distort and influence connecting spring's life.
Preferably, the sealing assembly comprises a sealing block, a first connecting rod fixedly connected with the sealing block and a first push plate arranged at one end of the first connecting rod; a first movable cavity is arranged in the shell, the first connecting rod penetrates through the first movable cavity, and the sealing block is arranged in the first through hole; a leakage-proof assembly is arranged in the first movable cavity; the sealing assembly is driven by the driving piece in the equipment cavity to form a sealing effect on the first through hole, and the sealing work of the blowout preventer can be completed by the power of the sealing assembly, so that the blowout preventer is easier to operate; through the mutual cooperation of leak protection subassembly and seal assembly, increase the sealed effect of preventer, prevent the emergence of blowout accident.
Preferably, the leakage-proof assembly comprises an air cylinder arranged in the shell, an oil storage cavity arranged above the air cylinder and an oil pressure cavity arranged at the top of the oil storage cavity, the oil pressure cavity is of a circular structure, and the inner side wall of the oil pressure cavity is made of an elastic material; the first connecting rod penetrates through the oil pressure cavity; the fluid of oil storage intracavity enters into the oil pressure intracavity under the effect of cylinder, and the oil pressure chamber enters into inside extrusion oil pressure intracavity wall at fluid, makes oil pressure intracavity wall paste tight head rod, forms sealed cooperation with the head rod, avoids taking place to reveal the phenomenon in the junction of head rod and casing, increases the sealed effect of preventer.
Preferably, a first sliding groove is formed in the top of the first equipment box, a push block is arranged in the first equipment box, a first sliding block matched with the first sliding groove is arranged at the top of the push block, and the first sliding block is arranged in the first sliding groove in a penetrating mode; a limiting device matched with the first sliding block is arranged in the shell; through the matching of the first sliding groove and the first sliding block, the driving motor is prevented from rotating when the pushing block is driven to move, so that the pushing block moves along the first sliding groove, and the moving stability of the pushing block is improved; through mutually supporting of stop device and first slider, make the ejector pad no longer take place to rock after promoting seal assembly formation cooperation, mutually support with driving motor, increase the sealed effect of seal block complex.
The invention has the following advantages: the oil delivery pipe inserted into the blowout preventer is fixed through the fixing assembly, so that the oil delivery pipe is prevented from vibrating during oil delivery, the connection effect of the oil delivery pipe and the blowout preventer is prevented from being influenced, the sealing performance of the blowout preventer is improved, and blowout accidents are prevented from happening.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of fig. 1 at B.
Fig. 4 is an enlarged view of fig. 1 at C.
Fig. 5 is an enlarged view of fig. 1 at D.
Fig. 6 is a sectional view of a mount bracket in embodiment 1 of the present invention.
Fig. 7 is a schematic structural view of a wind turbine in embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 9 is an enlarged view of fig. 8 at E.
Fig. 10 is a schematic view of the matching between the bump and the groove in embodiment 2 of the present invention.
Fig. 11 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 12 is a schematic structural view of a connecting member in embodiment 3 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 7, a blowout preventer easy to fix an oil delivery pipe comprises a housing 1, fixing plates 15 arranged on two sides of the housing 1, and first equipment boxes 2 arranged above the fixing plates 15, wherein the first equipment boxes 2 are divided into two groups and are respectively fixedly connected to two sides of the housing 1, and the fixing plates 15 are used for fixing the blowout preventer on a wellhead so that the blowout preventer can seal an oil well; a first through hole 11 is formed in the shell 1, and an oil delivery pipe can be inserted into an oil well from the first through hole to perform oil pumping work; a sealing assembly and a driving piece for driving the sealing assembly to move are arranged in the first equipment box 2; the bottom of the first equipment box 2 is provided with a supporting seat 16; the supporting seat 16 is a triangular structure, and the first equipment box is fixed on the side wall of the shell by utilizing the principle of triangular stability; the sealing assembly comprises a sealing block 23, a first connecting rod 231 fixedly connected with the sealing block 23 and a first push plate 232 arranged at one end of the first connecting rod 231; the sealing block 23 is made of elastic material and can be made of rubber material, the shape of the sealing block is opposite to that of the first through hole, and the sealing block plays a role in sealing and matching the first through hole; a first movable cavity 160 is arranged in the shell 1, the first connecting rod 231 penetrates through the first movable cavity 160, the sealing block 23 is arranged in the first through hole 11, the first push plate is arranged in the first equipment box, and the sealing block can move along the inner wall of the first movable cavity; a leakage-proof assembly is arranged in the first movable cavity 160, and the leakage-proof assembly is matched with the first connecting rod to seal the joint of the sealing assembly and the shell; when the oil pipeline is not inserted into the first through hole, the sealing blocks on the left side and the right side are in mutual contact fit, and the two sealing blocks are extruded mutually to generate deformation, so that the left sealing block and the right sealing block are in sealing fit; when the sealing block is extruded to deform, the sealing block is in mutual contact fit with the inner wall of the first movable cavity, so that the sealing block is in contact fit with the inner wall of the first movable cavity, and the sealing effect of the sealing block and the inner wall of the first movable cavity is improved; when defeated oil pipe inserted in the first through-hole, sealed piece is close to each other under the effect of driving piece, makes sealed piece middle part receive the extrusion, and both sides contact each other forms the cooperation, fixes defeated oil pipe between sealed piece, plays sealed effect to the junction of defeated oil pipe and first through-hole.
The driving part is a driving motor 21 fixedly connected to the inner wall of the first equipment box 2, a push block 22 is arranged in the equipment cavity 2, a first threaded hole 222 is formed in the push block 22, and the output shaft 211 of the driving motor penetrates through the first threaded hole 222; a return spring 2311 is sleeved on the first connecting rod and arranged on one side of the first push plate, one end of the return spring is contacted with the bottom of the first push plate, and the other end of the return spring is contacted with the side wall of the shell; an output shaft of the driving motor is provided with an external thread matched with the internal thread of the first threaded hole; the top of the first equipment box 2 is provided with a first sliding groove 24, the top of the push block 22 is provided with a first sliding block 221 matched with the first sliding groove 24, and the first sliding block 221 penetrates through the first sliding groove 24; the height of the first sliding block is larger than the depth of the first sliding groove, and when the first sliding block is arranged in the first sliding groove, the top end of the first sliding block is higher than the first sliding groove.
When the wellhead needs to be sealed, the driving motor works to drive the output shaft to rotate, and the push block cannot rotate along with the output shaft of the driving motor due to the limiting effect of the first slide block and the first sliding groove on the push block; the push block moves forwards along the first sliding groove under the matching action of the threads, so that the push block pushes the first push plate to move towards the inner side of the first through hole when moving forwards, and the sealing blocks on the left side and the right side are contacted with each other to form sealing matching; when a wellhead needs to be opened, the driving motor reversely drives the output shaft to rotate, so that the push block moves towards the direction far away from one side of the first through hole, the first push plate loses the thrust, and the sealing block is driven to move towards the direction far away from one side of the first through hole under the elastic action of the return spring, so that the sealing block is opened to facilitate the disassembly and assembly of the oil conveying pipe; the push block moves forwards in rotation through the matching of the output shaft and the first threaded hole, the first push plate is pushed to move forwards, and the sealing blocks are matched with each other to form a sealing effect on the first through hole; the distance of the movement of the push block is more easily controlled through the action of the first threaded hole, and the matching effect of the sealing block is improved.
A limiting device matched with the first sliding block 221 is arranged in the shell 1, a second movable cavity 12 is arranged at the top of the shell 1, and the limiting device comprises a connecting rod 35 arranged in the second movable cavity 12, a stop block 351 arranged at one end of the connecting rod 35 and a control assembly arranged at the top of the shell 1; the middle part of the connecting rod 35 is movably connected with the inner wall of the second movable cavity 12; the movable connection is hinged, and the second movable cavity is used for the connecting rod to rotate; the bottom of one end of the connecting rod is provided with a supporting spring 36 which supports the connecting rod, so that the connecting rod is in a horizontal state under the condition of no stress, the stop block is matched with the first sliding block, and the first sliding block is limited.
The control assembly comprises a first mounting plate 31 arranged at the top of the shell 1, mounting frames 32 arranged at two sides of the first mounting plate 31, a push rod 34 arranged at the bottom of the first mounting plate 31 and a threaded rod 33 arranged at the top of the first mounting plate 31, wherein the threaded rod 33 is arranged in the mounting frames 32 in a penetrating manner; the two groups of threaded rods are respectively arranged on two sides of the top of the first mounting plate and matched with the mounting frame; the push rod is sleeved with a return spring 341 and is arranged right above one end of the connecting rod; the mounting frame 32 is in an L shape, a nut seat 322 is arranged at the top of the mounting frame 32, a transmission motor for driving the nut seat 322 to rotate is arranged on one side of the nut seat 322, a transmission wheel 321 in transmission fit with the nut seat 322 is sleeved on an output shaft of the transmission motor, and the threaded rod 33 is arranged in the nut seat 322 in a penetrating manner; a first transmission tooth is arranged on the transmission wheel, and a second transmission tooth matched with the first transmission tooth is arranged on the outer side wall of the nut seat; the mounting frame is provided with a second through hole 311, the second through hole 311 is arranged right above the first through hole 11, and the aperture of the second through hole 311 is the same as that of the first through hole 11; the first mounting plate is fixedly matched with the mounting frame through the matching of the threaded rod and the nut seat.
The leakage-proof assembly comprises an air cylinder 13 arranged in the shell 1, an oil storage cavity 17 arranged above the air cylinder 13 and an oil pressure cavity 18 arranged at the top of the oil storage cavity 17, the oil pressure cavity 18 is of a circular structure, and the inner side wall 181 of the oil pressure cavity is made of elastic materials and can be made of rubber materials; the first connecting rod 231 penetrates through the oil pressure cavity 18; a partition plate 19 is arranged at the top of the oil storage cavity 17, and a plurality of oil through holes 191 are formed in the partition plate 19; the oil pressure cavity and the oil pressure cavity are divided by the partition plate to be two independent cavities; the cylinder piston rod 131 is provided with a second push plate 1311, and the second push plate 1311 is arranged in the oil storage cavity 17.
When the sealing blocks on the left side and the right side are matched, the air cylinder starts to work, the air cylinder pushes the piston rod to move upwards, the piston rod pushes the second push plate to move upwards, oil in the oil storage cavity enters the oil pressure cavity through the oil through hole under the action of the second push plate, a certain amount of oil is filled in the oil pressure cavity, the inner wall of the oil pressure cavity is pushed to deform under the action of the pressure of the oil, the inner wall of the oil pressure cavity is attached to the first connecting rod, the inner wall of the oil pressure cavity deforms to a certain degree, the inner wall of the oil pressure cavity is convenient to form good sealing matching with the first connecting rod, and the first connecting rod and the inner wall of the first movable cavity are sealed; when the sealing piece of both sides is partd to needs, cylinder drive piston rod downstream makes the second push pedal downstream, and the second push pedal downstream is with the fluid suction of oil pressure intracavity to the oil storage intracavity, makes the fluid of oil pressure intracavity reduce, and the shrink of oil pressure intracavity wall is thrown off the contact with the head rod, and the driving motor of being convenient for drives seal assembly and moves.
A pressure relief opening 120 is formed in the inner wall of the first through hole 11, a third movable cavity 110 is formed in one side of the pressure relief opening 120, a pressure relief assembly is arranged in the third movable cavity 110, and a pressure relief pipe 14 is arranged at the bottom of the third movable cavity 110; the pressure relief assembly comprises a base 150 fixedly connected to the inner wall of the third movable cavity 110, a second connecting rod 140 penetrating the base 150 and a third push plate 130 arranged at one end of the second connecting rod 140, a sealing gasket 1301 is arranged on the third push plate 130, a sealing spring 1401 is sleeved on the second connecting rod 140, the third push plate 130 is matched with the pressure relief opening 120, a fourth movable cavity 1501 is arranged in the base, the second connecting rod is arranged in the fourth movable cavity, and the second connecting rod can move along the inner wall of the fourth movable cavity; the sealing gasket is of a circular structure, is made of elastic material and can be made of rubber; when the third push plate presses on the pressure relief opening, the sealing gasket is contacted with the side wall of the pressure relief opening to form sealing fit.
When oil extraction is carried out in an oil well, when the pressure in the oil well is overlarge, the air pressure in the oil well presses the third push plate, so that the second connecting rod moves to the bottom of the fourth movable cavity, the pressure relief opening is opened, the airflow in the oil well enters the third movable cavity from the pressure relief opening, and the airflow entering the third movable cavity is discharged into the atmosphere through the pressure relief pipe to play a pressure relief role in the oil well; when the pressure of the oil well is reduced to a set value, the third push plate is contacted with the pressure relief opening under the action of the sealing spring, so that the sealing gasket is contacted with the side wall of the pressure relief opening to seal the pressure relief opening, a certain pressure is kept in the oil well, and the oil pumping work of the oil conveying pipe is facilitated; the pressure relief assembly is arranged to keep the pressure in the well within a certain pressure range, so that the blowout preventer is protected from overload.
The wind wheel 141 is arranged in the pressure relief pipe, the wind wheel 141 comprises a middle shaft 1411 and blades 1412, and a rotating speed sensor is connected to the middle shaft; when the pressure relief opening is opened, airflow in the oil well enters the pressure relief pipe through the pressure relief opening, the wind wheel in the pressure relief pipe rotates under the action of the air pressure of the oil well, the airflow entering the pressure relief pipe is buffered, the impact force of the air pressure in the pressure relief pipe is converted into the power of the rotation of the wind wheel through the wind wheel, and the airflow in the pressure relief pipe flows out of the pressure relief pipe more stably; the rotating speed sensor has a measuring effect on the rotating speed of the wind wheel, and the pressure intensity in the oil well can be obtained through the rotating speed of the wind wheel, so that the oil pumping unit is properly adjusted, the phenomenon that the pressure intensity of the oil well exceeds the limit of the blowout preventer excessively is avoided, and the blowout preventer is protected.
Example 2:
as shown in fig. 8 to 10, the present embodiment is different from embodiment 1 in that: a fixing device is arranged on the fixing plate 15 and is detachably connected with the fixing plate 15; the blowout preventer is fixed through the fixing device, so that the fixing effect of the blowout preventer is improved, the blowout preventer can be more stably fixed at the wellhead, and a good blowout prevention effect is achieved; through the detachable connection of the fixing device and the fixing plate, the fixing device can be conveniently overhauled and maintained, and the service life of the fixing device is prolonged.
The fixing device comprises a second equipment box 4 arranged on the fixing plate 15, a hydraulic cylinder 41 arranged in the second equipment box 4, a rotating motor 44 arranged on a piston rod of the hydraulic cylinder 41 and a positioning drill bit 45 arranged on an output shaft of the rotating motor 44; a piston rod of the hydraulic cylinder penetrates through the second equipment box, and the rotating motor is fixedly connected to the piston rod of the hydraulic cylinder; after the blowout preventer is placed at a wellhead position, the rotary motor drives the positioning drill bit to rotate, the positioning drill bit drives the positioning drill bit to move downwards when rotating, the positioning drill bit is enabled to press the ground while rotating, the positioning drill bit is convenient to rapidly drill into the ground, and the blowout preventer and the wellhead form fixed fit.
A third through hole 151 is formed in the fixing plate 15, and the positioning drill bit 45 is arranged in the third through hole 151; second sliding blocks 441 are arranged on two sides of the rotating motor 44, and second sliding grooves 153 matched with the second sliding blocks 441 are arranged on the inner wall of the third through hole 151; the third through hole is used for accommodating a positioning drill bit, and the positioning drill bit is taken into the third through hole when the blowout preventer is not used, so that the positioning drill bit is prevented from being exposed to the outside to increase the potential safety hazard of equipment; when the pneumatic cylinder promoted the location drill bit and down moved, the second slider moved along the second spout, and second spout and second slider mutually supported and play the guard action to the rotating electrical machines output shaft, avoided the location drill bit to increase the burden of rotating electrical machines output shaft in the vibrations that produce when boring into the ground end, played the guard action to the rotating electrical machines output shaft, avoided the rotating electrical machines output shaft at location drill bit during operation breaking phenomenon.
Connecting blocks 42 are arranged on two sides of the second equipment box 4, a bump 421 is arranged at the bottom of each connecting block 42, and a groove 152 matched with the bump 421 is arranged on the fixing plate 15; a plurality of convex strips 4211 are arranged on two sides of the lug 421; a second threaded hole is formed in the connecting block 42, a third threaded hole is formed in the bottom of the groove, the third threaded hole is formed below the second threaded hole, and a fixing screw 43 penetrates through the second threaded hole; when the second equipment box is installed on the preset position, the lug is embedded into the groove, the lug is matched with the groove, the second threaded hole and the third threaded hole are aligned with each other, the fixing screw is turned into until the fixing screw is turned into the bottom of the third threaded hole, the connecting block and the fixing plate are fixed by the fixing screw, and the fixing device is stably installed on the fixing plate; when the positioning drill bit needs to be maintained and replaced for a long time, the fixing screw is rotated out of the threaded hole, and then the lug is pulled out of the groove, so that the fixing device can be conveniently detached to maintain and replace the positioning drill bit; the convex strips are contacted with the grooves, so that the contact area of the convex blocks and the grooves is reduced, the pressure intensity of the convex blocks and the grooves is increased, and the convex blocks and the grooves are in closer fixed fit; fix second screw hole and third screw hole through set screw, with stable the fixing on the fixed plate of connecting block, increase the fixed effect of second equipment box and fixed plate.
Example 3:
as shown in fig. 11 to 12, the present embodiment is different from embodiment 1 in that: a fixing component is further arranged on the inner wall of the first through hole 11; the oil delivery pipe inserted into the blowout preventer is fixed through the fixing assembly, so that the oil delivery pipe is prevented from vibrating during oil delivery, the connection effect of the oil delivery pipe and the blowout preventer is prevented from being influenced, the sealing performance of the blowout preventer is improved, and blowout accidents are prevented from happening.
The fixing component comprises a second mounting plate 5 arranged on the inner wall of the first through hole 11, a connecting spring 54 arranged on the second mounting plate 5 and a fastening plate 51 fixedly connected on the connecting spring 54; fixed subassembly is two sets of, installs respectively in first through-hole inner wall both sides, and defeated oil pipe inserts first through-hole internal back, and defeated oil pipe is settled between two mounting plates about, plays fixed action to defeated oil pipe through controlling two mounting plates, avoids defeated oil pipe to produce the sealed effect that vibrations influence defeated oil pipe and sealed piece when defeated oil, promotes the leakproofness of preventer.
A guide plate 52 is arranged at the top of the fastening plate 51, the guide plate 52 is obliquely arranged, and the caliber of the top of the guide plate 52 is larger than that of the bottom of the guide plate 52; when the oil conveying pipe is inserted into the first through hole, the bottom of the oil conveying pipe contacts the guide plate, the oil conveying pipe moves downwards along the guide plate, the fastening plates are pushed towards two sides by the bottom of the oil conveying pipe under the action of the guide plate, and the fastening plates move towards two sides of the first through hole to compress the connecting springs, so that the oil conveying pipe can conveniently enter the fastening plates at two sides; the fastening plate is pushed to be close to the oil pipeline by the elastic force of the connecting spring, so that the fastening plate is matched with the oil pipeline, and the oil pipeline is fixed; set up baffle top bore and be greater than the baffle bottom, make defeated oil pipe change in entering into the baffle, enter into the mounting plate along the baffle inner wall in, form fixed coordination with the mounting plate.
The bottom of the guide plate 52 is provided with a first ball 521, and the fastening plate 51 is provided with a second ball 511; through the arrangement of the first balls, the oil conveying pipe is easier to enter the fastening plate along the guide plate after entering the guide plate, and the blocking effect of the connecting part of the guide plate and the fastening plate on the oil conveying pipe is avoided; through the setting of second ball, reduce the frictional force of defeated oil pipe and mounting plate, make defeated oil pipe can be along mounting plate do the elevating movement.
Two sides of the connecting spring 54 are provided with connecting components 53, and each connecting component 53 comprises a connecting seat 531 and a movable rod 532 arranged in the connecting seat 531; a fifth movable cavity 5311 is arranged in the connecting seat 531, and the movable rod can move along the inner wall of the fifth movable cavity; play limiting displacement to the mounting plate through coupling assembling, avoid defeated oil pipe to drive the mounting plate together to move when being elevating movement along the mounting plate inner wall, make connecting spring take place to distort and influence connecting spring's life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A blowout preventer easy for fixing an oil conveying pipe comprises a shell (1), fixing plates (15) arranged on two sides of the shell (1) and a first equipment box (2) arranged above the fixing plates (15), wherein a first through hole (11) is formed in the shell (1), and a sealing assembly and a driving piece used for driving the sealing assembly to move are arranged in the first equipment box (2); a supporting seat (16) is arranged at the bottom of the first equipment box (2); the method is characterized in that: a pressure relief opening (120) is formed in the inner wall of the first through hole (11), and a pressure relief pipe (14) matched with the pressure relief opening (120) is arranged in the shell (1); the inner wall of the first through hole (11) is also provided with a fixing component; the fixing assembly comprises a second mounting plate (5) arranged on the inner wall of the first through hole (11), a connecting spring (54) arranged on the second mounting plate (5) and a fastening plate (51) fixedly connected to the connecting spring (54); a guide plate (52) is arranged at the top of the fastening plate (51), the guide plate (52) is obliquely arranged, and the caliber of the top of the guide plate (52) is larger than that of the bottom of the guide plate (52); the bottom of the guide plate (52) is provided with a first ball (521), and the fastening plate (51) is provided with a second ball (511); connecting spring (54) both sides are equipped with coupling assembling (53), coupling assembling (53) are including connecting seat (531) and locate movable rod (532) in connecting seat (531).
2. The blowout preventer facilitating fixing of an oil pipeline according to claim 1, wherein: the sealing assembly comprises a sealing block (23), a first connecting rod (231) fixedly connected with the sealing block (23) and a first push plate (232) arranged at the other end of the first connecting rod (231); a first movable cavity (160) is arranged in the shell (1), the first connecting rod (231) penetrates through the first movable cavity (160), and the sealing block (23) is arranged in the first through hole (11); a leakage-proof assembly is arranged in the first movable cavity (160).
3. The blowout preventer facilitating fixing of an oil pipeline according to claim 2, wherein: the leakage-proof assembly comprises an air cylinder (13) arranged in the shell (1), an oil storage cavity (17) arranged above the air cylinder (13) and an oil pressure cavity (18) arranged at the top of the oil storage cavity (17), the oil pressure cavity (18) is of a circular structure, and the inner side wall (181) of the oil pressure cavity is made of elastic materials; the first connecting rod (231) penetrates through the oil pressure cavity (18).
4. A blowout preventer easily fixing an oil pipeline according to claim 3, wherein: a first sliding groove (24) is formed in the top of the first equipment box (2), a push block (22) is arranged in the first equipment box (2), a first sliding block (221) matched with the first sliding groove (24) is arranged on the top of the push block (22), and the first sliding block (221) penetrates through the first sliding groove (24); and a limiting device matched with the first sliding block (221) is arranged in the shell (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291598.9A CN109252826B (en) | 2018-10-31 | 2018-10-31 | Blowout preventer easy to fix oil delivery pipe |
| CN202011358748.0A CN112267847A (en) | 2018-10-31 | 2018-10-31 | Blowout preventer with sealing performance and oil conveying pipe easy to fix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291598.9A CN109252826B (en) | 2018-10-31 | 2018-10-31 | Blowout preventer easy to fix oil delivery pipe |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011358748.0A Division CN112267847A (en) | 2018-10-31 | 2018-10-31 | Blowout preventer with sealing performance and oil conveying pipe easy to fix |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109252826A CN109252826A (en) | 2019-01-22 |
| CN109252826B true CN109252826B (en) | 2021-02-26 |
Family
ID=65044534
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011358748.0A Withdrawn CN112267847A (en) | 2018-10-31 | 2018-10-31 | Blowout preventer with sealing performance and oil conveying pipe easy to fix |
| CN201811291598.9A Active CN109252826B (en) | 2018-10-31 | 2018-10-31 | Blowout preventer easy to fix oil delivery pipe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011358748.0A Withdrawn CN112267847A (en) | 2018-10-31 | 2018-10-31 | Blowout preventer with sealing performance and oil conveying pipe easy to fix |
Country Status (1)
| Country | Link |
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| CN (2) | CN112267847A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324520A (en) * | 2021-12-15 | 2022-11-11 | 江苏瑞亿石油机械有限公司 | Blowout preventer hanging prevention protection device and blowout preventer assembly |
| CN115028065B (en) * | 2022-08-11 | 2022-10-21 | 山东华骏金成能源设备有限公司 | Blowout preventer transferring device and using method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247231Y (en) * | 1996-03-14 | 1997-02-12 | 地质矿产部探矿工艺研究所 | Manual gate plate blowout preventer |
| GB2320514A (en) * | 1996-12-18 | 1998-06-24 | Varco Shaffer Inc | Partially pressure balanced BOP ram assembly |
| CN202417402U (en) * | 2011-12-11 | 2012-09-05 | 杨桂青 | Dual-pipe operation blowout preventer of horizontal well |
| CN104975818A (en) * | 2015-06-30 | 2015-10-14 | 中国石油天然气股份有限公司 | Device and technological method for pulling lower oil tube |
| CN204804739U (en) * | 2015-06-01 | 2015-11-25 | 中国石油化工股份有限公司 | Oil pipe prevents gusher mouth pressure relief device |
| CN107013716A (en) * | 2017-06-01 | 2017-08-04 | 盐城市锦瑞石油机械有限公司 | A kind of double acting pressure release preventer |
-
2018
- 2018-10-31 CN CN202011358748.0A patent/CN112267847A/en not_active Withdrawn
- 2018-10-31 CN CN201811291598.9A patent/CN109252826B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2247231Y (en) * | 1996-03-14 | 1997-02-12 | 地质矿产部探矿工艺研究所 | Manual gate plate blowout preventer |
| GB2320514A (en) * | 1996-12-18 | 1998-06-24 | Varco Shaffer Inc | Partially pressure balanced BOP ram assembly |
| CN202417402U (en) * | 2011-12-11 | 2012-09-05 | 杨桂青 | Dual-pipe operation blowout preventer of horizontal well |
| CN204804739U (en) * | 2015-06-01 | 2015-11-25 | 中国石油化工股份有限公司 | Oil pipe prevents gusher mouth pressure relief device |
| CN104975818A (en) * | 2015-06-30 | 2015-10-14 | 中国石油天然气股份有限公司 | Device and technological method for pulling lower oil tube |
| CN107013716A (en) * | 2017-06-01 | 2017-08-04 | 盐城市锦瑞石油机械有限公司 | A kind of double acting pressure release preventer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109252826A (en) | 2019-01-22 |
| CN112267847A (en) | 2021-01-26 |
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