CN116201498A - Blowout preventer capable of rapidly opening side door and working method thereof - Google Patents
Blowout preventer capable of rapidly opening side door and working method thereof Download PDFInfo
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- CN116201498A CN116201498A CN202310248360.2A CN202310248360A CN116201498A CN 116201498 A CN116201498 A CN 116201498A CN 202310248360 A CN202310248360 A CN 202310248360A CN 116201498 A CN116201498 A CN 116201498A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 230000032683 aging Effects 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Mining & Mineral Resources (AREA)
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
The invention discloses a blowout preventer capable of rapidly opening a side door and a working method thereof, belonging to the technical field of petroleum drilling equipment devices; the structure comprises a shell assembly, wherein side door assemblies are assembled at two ends of the shell assembly, and the shell assembly and the side door assemblies are assembled and then are fastened and assembled and/or disassembled through a clamp assembly, so that a flashboard assembly can be replaced conveniently and quickly; the outer side of the clamp assembly is provided with a push-pull mechanism, and the clamp assembly is close to or far away from the shell assembly through the push-pull mechanism; the clamping hoop assembly can be smoothly, quickly and effectively pushed in or pulled out through the design of the push-pull mechanism, compared with the traditional structural design, the clamping hoop clamping force is prevented from being provided by the bolts, the problem that the difficulty in disassembly and assembly is further increased due to the fact that the bolts are stressed in a complex manner is solved, and meanwhile, the situation that the bolts fall off due to the aging and other factors is avoided.
Description
Technical Field
The invention relates to a blowout preventer capable of rapidly opening a side door and a working method thereof, and belongs to the technical field of petroleum drilling equipment devices.
Background
Blowout preventers are indispensable equipment in well control, and relate to the safety of well drilling production. Often because drilling operation working condition is changed to be a shearing flashboard, a shearing and sealing integrated flashboard or a sealing flashboard with a certain aperture size, and maintenance needs, the side door needs to be conveniently opened for replacement. There are two types of conventional side door structures, namely a hinge pin side door represented by a shafer structure and a U-shaped cylinder push-out type represented by a cameron structure. Based on the two types of hinge pin type side door structures, a hinge pin type through locking structure is developed. The U-shaped structure develops a hydraulic pushing locking mechanism of the patent CN201486506U, a penetrating locking device of the type CN201606029U, CN207620759U and an upper and lower clamp type CN 104712285B. Hinge pin type side doors are different from blowout preventer structure bases according to the scheme, and are not discussed here.
Compared with the U-shaped structure, as shown in fig. 1, the conventional side door structure is connected to the shell by means of the bolt at the position A, a special tool is required for opening, the labor intensity is very high, and the shell body is damaged after the bolt is often corroded and can not be opened.
The developed U-shaped structure adopts a penetrating locking device, although bolts are omitted, the penetrating locking device has large installation space and is difficult to pull out, such as patent CN201606029U, CN207620759U. The hydraulic pressure of the patent CN201486506U pushes the locking mechanism, and leakage is easy to generate and failure is easy to occur due to long-term sealing of the hydraulic pressure. CN104712285B upper and lower clamps, the clamping force of the clamps is provided by bolts, and the bolts are stressed in complex manner. And the clamp is located upper and lower position, and after the bolt loosens, easily drop, and the structure receives space influence and is unsuitable to be applied to structure such as two flashboards of establishing ties.
Disclosure of Invention
The invention aims at: according to the blowout preventer capable of rapidly opening the side door and the working method thereof, the side door assembly can be rapidly and effectively detached from the shell assembly through the design of the structure, and the flashboard assembly can be replaced more efficiently and rapidly.
A blowout preventer capable of rapidly opening a side door comprises a shell assembly, wherein side door assemblies are assembled at two ends of the shell assembly, and the shell assembly and the side door assembly are assembled and/or disassembled through a clamp assembly, so that a flashboard assembly is convenient to rapidly replace;
the outer side of the clamp assembly is provided with a push-pull mechanism, and the clamp assembly is close to or far away from the shell assembly through the push-pull mechanism;
when the clamp assembly is close to the shell assembly, the side door assembly and the shell assembly are fastened and assembled through the clamp assembly;
when the clamp assembly is far away from the shell assembly, the side door assembly and the shell assembly can be detached through the clamp assembly.
Further, through grooves are formed in two sides of the shell assembly, each through groove is provided with a clamp assembly, and the opposite clamp assemblies can slide along the through grooves.
Further, the side door assembly is provided with a side door opening oil cylinder and a side door closing oil cylinder, the shell assembly is provided with an oil cylinder connecting port used for being connected with the side door opening oil cylinder and the side door closing oil cylinder, the end part of the side door assembly is also provided with a side door front end face, and the shell assembly is provided with a shell front end face matched with the side door front end face.
Further, the side door assembly is further provided with a side door semicircular groove, the shell assembly is provided with a shell semicircular groove, the clamp assembly comprises a pair of clamp strips, and the clamp strips can be assembled into the side door semicircular groove and the shell semicircular groove respectively.
Furthermore, the clamping strap is matched with the inner side surface or/and the outer side surface of the side door semicircular groove or/and the shell semicircular groove in a conical surface mode.
Further, the side door assembly is provided with the side door straight flute, the casing assembly is provided with the casing straight flute, the clamp assembly is provided with Fang Jian, when side door assembly and casing assembly are assembled, the side door straight flute matches with the casing straight flute, along with the clamp assembly to the being close to of casing assembly, fang Jian enters into the side door straight flute and the square groove that the casing straight flute formed.
Further, the push-pull mechanism comprises a push-pull connecting piece fixedly arranged on the clamp assembly and a fixing frame fixedly arranged on the shell assembly, and the push-pull connecting piece can be pushed in or pulled out relative to the fixing frame, so that the clamp assembly is driven to move.
Further, the push-pull connecting piece is a driving screw fixedly arranged on the clamp assembly, the fixing frame is provided with a fixing plate, the driving screw can penetrate through the fixing plate, the end part of the driving screw is provided with a locking nut and a loose nut, the locking nut is arranged on the inner side of the fixing plate, and the loose nut is arranged on the outer side of the fixing plate.
Further, the push-pull connecting piece is a driving screw rod which is rotatably arranged on the clamp assembly, the fixing frame is provided with a fixing plate, a threaded hole matched with the driving screw rod is formed in the fixing plate, and the clamp assembly is driven to move through matching of the driving screw rod and the threaded hole.
A method for rapidly opening a side door blowout preventer, which is applied to the blowout preventer capable of rapidly opening the side door, comprises the following steps:
s1, when a side door closes an oil cylinder, a side door assembly reaches a closing position, at the moment, a loose nut is rotated to the outer end of a driving screw, and a locking nut is rotated to enable the locking nut to push a fixing frame, so that the driving screw moves inwards, square keys in a clamp assembly are inserted into a shell straight groove and a side door straight groove, and a clamp strip holds the shell semicircular groove and the side door semicircular groove, so that the aim of closing and locking is fulfilled;
s2, when the side door assembly needs to be opened, the lock nut is rotated to the inner side end part of the driving screw, then the loose nut is rotated to push the driving screw to move outwards, so that the clamp assembly is opened, at the moment, the side door opening oil cylinder moves to push the side door assembly to be opened, and therefore the side door assembly is opened quickly, and the flashboard assembly is replaced.
The technical scheme adopted by the invention is as follows: .
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, disclosed by the invention, the clamp assembly can be smoothly, rapidly and effectively pushed in or pulled out through the design of the push-pull mechanism, and compared with the traditional structural design, the problem that clamp holding force is provided by bolts and the difficulty in disassembly and assembly is further increased due to complex stress of the bolts is avoided in the matching relation, and meanwhile, the situation that the bolts fall off due to ageing and other factors is avoided;
2. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, the special-shaped clamp type structure is adopted as the bearing piece, the connection is realized by matching the tapered semicircular groove and the clamp during installation, the certain adjustability is achieved, the processing precision requirement is reduced, compensation after abrasion can be realized, the clamping is not easy, and the assembly is easier;
3. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, in the structural design of the clamp, the split clamp structure is adopted, the two sides are respectively filled, the situation that a large space is required for filling from one side is avoided, and the blowout preventer can be used for connecting with the flashboard in series (such as a double-flashboard blowout preventer and the like) without increasing the height, so that the applicability is higher. Meanwhile, the clamping force of the clamp is generated from the inside of the clamp, and the greater the pressure is, the greater the clamping force is;
4. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, in the concrete design of the push-pull structure, the driving screw is adopted, namely, the design of the screw pushing clamp is adopted, the precision is higher, and in addition, the mechanical structure is adopted, so that the blowout preventer is safer and more reliable than the hydraulic locking.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a conventional structure;
FIG. 2 is a schematic diagram of a blowout preventer structure in an open side door condition;
FIG. 3 is a schematic diagram of a side door of a blowout preventer structure in a closed position;
FIG. 4 is a schematic diagram partially in section of a side door open condition of a blowout preventer structure;
FIG. 5 is a schematic diagram partially in section of a side door of a blowout preventer structure;
FIG. 6 is a schematic view of the clamp assembly and housing assembly;
FIG. 7 is a schematic structural view of the housing assembly;
FIG. 8 is a schematic structural view of a side door assembly;
FIG. 9 is a schematic view of the clip assembly;
fig. 10 is a schematic structural diagram of embodiment 2.
The marks in the figure: 1-side door assembly, 11-side door opening cylinder, 121-side door semicircular groove, 122-side door straight groove, 13-side door closing cylinder, 14-sealing ring, 15-side door front end face, 2-shell assembly, 21-cylinder connecting screw thread, 22-sealing lip table, 23-shell straight groove, 24-shell semicircular groove, 25-shell front end face, 3-clamp assembly, 31-driving screw, 32-clamp strip, 33-square key, 4-fixing frame, 5-loose nut, 6-locking nut, 7-flashboard assembly, 8-mounting part and 9-assembly.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Example 1
The blowout preventer capable of rapidly opening the side door comprises a shell assembly 2, wherein the side door assembly 1 is assembled at two ends of the shell assembly 2, and the shell assembly 2 and the side door assembly 1 are assembled and/or disassembled through a clamp assembly 3 after being fastened, so that a flashboard assembly 7 is convenient to rapidly replace;
the outer side of the clamp assembly 3 is provided with a push-pull mechanism, and the clamp assembly 3 is close to or far away from the shell assembly 2 through the push-pull mechanism;
when the clamp assembly 3 is close to the shell assembly 2, the side door assembly 1 and the shell assembly 2 are fastened and assembled through the clamp assembly 3;
when the clamp assembly 3 is far away from the housing assembly 2, the side door assembly 1 and the housing assembly 2 are detachable through the clamp assembly 3.
In a specific design, as a more specific design, through grooves are formed in two sides of the housing assembly 2, each through groove is provided with a clamp assembly 3, and the opposite clamp assembly 3 can slide along the through groove. In the design of the structure, more clearly, the split type clamp structure is adopted, and the clamp structure is respectively installed from two sides, so that the requirement of a large space for installing the clamp structure from one side is avoided.
In this embodiment, as a specific comparative analysis, with publication CN104712285B as a comparison, the design of the conventional structure adopts an up-down clip type, and clip holding force is provided by a bolt. In this regard, the clamp is located upper and lower position, and after the bolt loosens, easily drops, and the structure receives space influence and is unsuitable to be applied to structures such as two flashboards of establishing ties. Different from the traditional structural design, the clamp is of a split type clamp structure on the specific structural design, and is installed from two sides respectively, so that on one hand, the assembly effect of the whole structure is considered, on the other hand, the situation that the whole structural design cannot fall off under normal working conditions is considered, and the production requirement on the clamp assembly 3 is relatively lower. Meanwhile, the design of the push-pull structure is more favorable for the rapid push-in and pull-out of the whole structure, so that the flashboard assembly 7 can be replaced more efficiently and rapidly.
On the basis of the design of the specific structure, the push-pull mechanism is further optimally designed, and as a more specific design, the push-pull mechanism comprises a push-pull connecting piece fixedly arranged on the clamp assembly 3 and a fixing frame 4 fixedly arranged on the shell assembly 2, and the push-pull connecting piece can be pushed in or pulled out relative to the fixing frame 4, so that the clamp assembly 3 is driven to move. In the design of the structure, the structure design adopting bolt fixing is avoided, the further design of auxiliary parts is adopted, and the defects of some columns caused by aging of bolts can be effectively avoided on the basis of the design.
As more specific design, in this application, as the design of optimizing, push-and-pull connecting piece is fixed the drive screw 31 that sets up on clamp assembly 3, mount 4 has the fixed plate, drive screw 31 can run through the fixed plate, just drive screw 31's tip is provided with lock nut 6 and loosens knot nut 5, lock nut 6 sets up in the inboard of fixed plate, loosen knot nut 5 sets up in the outside of fixed plate.
In the design of this structure, the structural design of specific details is different to traditional structure, is provided with on the drive screw 31 and loosens knot nut 5 and lock nut 6 in the design of this structure, carries out the nut of suitable regulation response as required to can realize push-and-pull function and realize the effect of locking, and in this design, not only considered dismouting efficiency higher, further considered simultaneously can effectively avoid appearing the problem that drive bolt is not hard up or drops under whole device operating condition, realize better assembly's effect, also further assurance assembly efficiency.
Example 2
On the basis of the design of embodiment 1, on the design of the push-pull mechanism, the structure designed by embodiment 1 has a certain slight difference, as shown in fig. 10, specifically, the push-pull connecting piece is a driving screw 31 rotatably arranged on the clamp assembly 3, the fixing frame 4 is provided with a fixing plate, the fixing plate is provided with a threaded hole matched with the driving screw 31, and the movement of the clamp assembly 3 is driven by the matching of the driving screw 31 and the threaded hole.
In this design, specifically, on the design of the assembly of the driving screw 31, the end of the driving screw 31 may be designed to be a smooth surface, and the mounting portion 8 with a shaft hole is provided on the clamp assembly 3, and the end of the driving screw 31 is assembled with the threaded assembly 9 and is matched with the mounting portion, and the end of the driving screw 31 is assembled in a limiting manner by a limiting ring.
Example 3
On the basis of the design of the embodiment 1 and the embodiment 2, the assembly structure of the side door assembly 1, the shell assembly 2 and the clamp assembly 3 is further optimally designed, the side door assembly 1 is provided with a side door opening cylinder 11 and a side door closing cylinder 13, the shell assembly 2 is provided with a cylinder connecting port for connecting the side door opening cylinder 11 and the side door closing cylinder 13, the end part of the side door assembly 1 is further provided with a side door front end surface 15, and the shell assembly 2 is provided with a shell front end surface 25 matched with the side door front end surface 15. In this design, the oil circulation is a side door opening cylinder 11 and a side door closing cylinder 13, one of which is a driving member and the other is a driven member.
As a specific design, the side door assembly 1 is further provided with a sealing ring 14, and the housing assembly 2 is provided with a sealing lip 22, so that an effective sealing effect is achieved.
On specific structural design, based on the specific design, more specifically, the side door assembly 1 is further provided with a side door semicircular groove 121, the housing assembly 2 is provided with a housing semicircular groove 24, and the clamp assembly 3 comprises a pair of clamp strips 32, wherein the clamp strips 32 can be respectively assembled into the side door semicircular groove 121 and the housing semicircular groove 24. In the design of this structure, the design of the clamping strap 32 is adopted to realize the enclasping of the housing assembly 2 and the side door assembly 1, thereby realizing the stability of the whole structure assembly.
Based on the above specific design, further design, side door assembly 1 is provided with side door straight flute 122, casing assembly 2 is provided with casing straight flute 23, clamp assembly 3 is provided with Fang Jian, when side door assembly 1 and casing assembly 2 are assembled, side door straight flute 122 matches with casing straight flute 23.
Based on the specific design, the clamp strip 32 has a U-shaped structure, while the Fang Jian strip-shaped structure can realize further limitation after assembly and ensure the integrity of the side door assembly 1 and the housing assembly 2 after assembly. In this design, the superior performance is more remarkable under the action of stress, and in particular, when the side door assembly 1 receives the cavity pressure, the side door transmits the force to the side door semicircular groove 121 and the side door straight groove 122. On the one hand, the clamp assembly 3 tightly holds the shell semicircular groove 24 and the side door semicircular groove 121 by means of the thrust of the bolt driving screw 31 and the locking nut 6, and meanwhile, the side door straight groove 122 presses the key and is transmitted to the shell straight groove 23 through the square key 33, so that the locking purpose is achieved. On the other hand, the square key 33 is pressed between the side door straight groove 122 and the housing straight groove 23, and the greater the pressing force is, the greater the frictional resistance is, so that the greater the pressure in the blowout preventer housing is, the greater the force with which the clamp assembly 3 maintains the clamped state is, and the main source of the clamping force is generated.
In a further design, specifically, the clamping band 32 is matched with the inner side surface or/and the outer side surface of the side door semicircular groove 121 or/and the shell semicircular groove 24 by adopting conical surface. The clip strip 32 preferably has a tapered fit on the inner surface of the side door slot 121 that mates with the housing slot 24. The design of this taper, as a specific description, is such that the bottom spacing of a pair of clip strips 32 on the clip assembly 3 is less than the top spacing of the clip strips 32. The connection is realized by means of the matching of the tapered semicircular groove and the clamp during installation, the device has certain adjustability, the machining precision requirement is reduced, and meanwhile, the device can realize compensation after abrasion and is not easy to clamp and is easier to assemble.
Example 4
On the basis of the design of the embodiment 1-3, after the structure is adopted, a method for rapidly opening the side door blowout preventer is provided, which specifically comprises the following steps:
s1, when the side door closes the oil cylinder 13, the side door assembly 1 reaches a closing position, at the moment, the loose nut 5 is rotated to the outer end of the driving screw 31, the locking nut 6 is rotated anticlockwise, the locking nut 6 pushes the fixing frame 4, the driving screw 31 moves inwards, the square key 33 in the clamp assembly 3 is inserted into the shell straight groove 23 and the side door straight groove 122, and the clamp strip 32 holds the shell semicircular groove 24 and the side door semicircular groove 121, so that the purpose of closing and locking is achieved;
s2, when the side door assembly 1 needs to be opened, the lock nut 6 is firstly rotated to the inner side end part of the driving screw rod 31, then the loose nut 5 is clockwise rotated, the driving screw rod 31 is pushed to move outwards, the clamp assembly 3 is opened, at the moment, the side door opening oil cylinder 11 moves, the side door assembly 1 is pushed to be opened, and therefore the side door assembly 1 is opened rapidly, and the flashboard assembly 7 is replaced.
The side door assembly 1 can be quickly responded to the opening and closing of the side door assembly through the actions, the connection mode between the shell and the side door is changed, the labor intensity is greatly reduced, and the efficiency is improved. And the whole mechanism is of a mechanical structure, and is safe, reliable and stable.
As a stress analysis, when the side door assembly 1 receives the cavity pressure, the side door transmits the force to the side door semicircular groove 121, the side door straight groove 122. On the one hand, the clamp assembly 3 tightly holds the shell semicircular groove 24 and the side door semicircular groove 121 by means of the thrust of the bolt driving screw 31 and the locking nut 6, and meanwhile, the side door straight groove 122 presses the key and is transmitted to the shell straight groove 23 through the square key 33, so that the locking purpose is achieved. On the other hand, the square key 33 is pressed between the side door straight groove 122 and the housing straight groove 23, and the greater the pressing force is, the greater the frictional resistance is, so that the greater the pressure in the blowout preventer housing is, the greater the force with which the clamp assembly 3 maintains the clamped state is, and the main source of the clamping force is generated.
To sum up:
1. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, disclosed by the invention, the clamp assembly can be smoothly, rapidly and effectively pushed in or pulled out through the design of the push-pull mechanism, and compared with the traditional structural design, the problem that clamp holding force is provided by bolts and the difficulty in disassembly and assembly is further increased due to complex stress of the bolts is avoided in the matching relation, and meanwhile, the situation that the bolts fall off due to ageing and other factors is avoided;
2. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, the special-shaped clamp type structure is adopted as the bearing piece, the connection is realized by matching the tapered semicircular groove and the clamp during installation, the certain adjustability is achieved, the processing precision requirement is reduced, compensation after abrasion can be realized, the clamping is not easy, and the assembly is easier;
3. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, in the structural design of the clamp, the split clamp structure is adopted, the two sides are respectively filled, the situation that a large space is required for filling from one side is avoided, and the blowout preventer can be used for connecting with the flashboard in series (such as a double-flashboard blowout preventer and the like) without increasing the height, so that the applicability is higher. Meanwhile, the clamping force of the clamp is generated from the inside of the clamp, and the greater the pressure is, the greater the clamping force is;
4. according to the blowout preventer capable of rapidly opening the side door and the working method thereof, in the concrete design of the push-pull structure, the driving screw is adopted, namely, the design of the screw pushing clamp is adopted, the precision is higher, and in addition, the mechanical structure is adopted, so that the blowout preventer is safer and more reliable than the hydraulic locking.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (10)
1. A blowout preventer capable of rapidly opening a side door, comprising: the device comprises a shell assembly, wherein side door assemblies are assembled at two ends of the shell assembly, and the shell assembly and the side door assemblies are assembled and/or disassembled through a clamp assembly, so that the flashboard assembly can be replaced quickly;
the outer side of the clamp assembly is provided with a push-pull mechanism, and the clamp assembly is close to or far away from the shell assembly through the push-pull mechanism;
when the clamp assembly is close to the shell assembly, the side door assembly and the shell assembly are fastened and assembled through the clamp assembly;
when the clamp assembly is far away from the shell assembly, the side door assembly and the shell assembly can be detached through the clamp assembly.
2. The blowout preventer capable of rapidly opening a side door according to claim 1, wherein: the shell assembly is characterized in that through grooves are formed in two sides of the shell assembly, each through groove is provided with a clamp assembly, and the opposite clamp assemblies can slide along the through grooves.
3. The blowout preventer capable of rapidly opening a side door according to claim 2, wherein: the side door assembly is provided with a side door opening oil cylinder and a side door closing oil cylinder, the shell assembly is provided with an oil cylinder connecting port used for being connected with the side door opening oil cylinder and the side door closing oil cylinder, the end part of the side door assembly is also provided with a side door front end face, and the shell assembly is provided with a shell front end face matched with the side door front end face.
4. The blowout preventer capable of rapidly opening a side door according to claim 2, wherein: the side door assembly is further provided with a side door semicircular groove, the shell assembly is provided with a shell semicircular groove, the clamp assembly comprises a pair of clamp strips, and the clamp strips can be assembled into the side door semicircular groove and the shell semicircular groove respectively.
5. The quick opening side door blow out device of claim 4, wherein: the clamping strap is matched with the inner side surface or/and the outer side surface of the side door semicircular groove or/and the shell semicircular groove in a conical surface mode.
6. The blowout preventer capable of rapidly opening a side door according to claim 2, wherein: the side door assembly is provided with side door straight flute, the casing assembly is provided with the casing straight flute, the clamp assembly is provided with Fang Jian, when side door assembly and casing assembly are assembled, side door straight flute matches with the casing straight flute, along with the clamp assembly to the being close to of casing assembly, fang Jian enters into the side door straight flute and the square groove that the casing straight flute formed.
7. The blowout preventer capable of rapidly opening a side door according to claim 1, wherein: the push-pull mechanism comprises a push-pull connecting piece fixedly arranged on the clamp assembly and a fixing frame fixedly arranged on the shell assembly, and the push-pull connecting piece can be pushed in or pulled out relative to the fixing frame so as to drive the clamp assembly to move.
8. The blowout preventer for rapid opening of a side door of claim 7, wherein: the push-pull connecting piece is a driving screw fixedly arranged on the clamp assembly, the fixing frame is provided with a fixing plate, the driving screw can penetrate through the fixing plate, the end part of the driving screw is provided with a locking nut and a loose nut, the locking nut is arranged on the inner side of the fixing plate, and the loose nut is arranged on the outer side of the fixing plate.
9. The blowout preventer for rapid opening of a side door of claim 7, wherein: the push-pull connecting piece is a driving screw rod which is rotatably arranged on the clamp assembly, the fixing frame is provided with a fixing plate, a threaded hole matched with the driving screw rod is formed in the fixing plate, and the clamp assembly is driven to move through matching of the driving screw rod and the threaded hole.
10. A method of rapidly opening a side door blowout preventer, employing the blowout preventer of rapidly openable side door of claims 1-9, wherein: the method comprises the following steps:
s1, when a side door closes an oil cylinder, a side door assembly reaches a closing position, at the moment, a loose nut is rotated to the outer end of a driving screw, and a locking nut is rotated to enable the locking nut to push a fixing frame, so that the driving screw moves inwards, square keys in a clamp assembly are inserted into a shell straight groove and a side door straight groove, and a clamp strip holds the shell semicircular groove and the side door semicircular groove, so that the aim of closing and locking is fulfilled;
s2, when the side door assembly needs to be opened, the lock nut is rotated to the inner side end part of the driving screw, then the loose nut is rotated to push the driving screw to move outwards, so that the clamp assembly is opened, at the moment, the side door opening oil cylinder moves to push the side door assembly to be opened, and therefore the side door assembly is opened quickly, and the flashboard assembly is replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310248360.2A CN116201498B (en) | 2023-03-15 | 2023-03-15 | Blowout preventer capable of rapidly opening side door and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310248360.2A CN116201498B (en) | 2023-03-15 | 2023-03-15 | Blowout preventer capable of rapidly opening side door and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116201498A true CN116201498A (en) | 2023-06-02 |
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| CN116201498B (en) | 2024-08-23 |
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