CN116906697A - Flange adapter for balancing load and locking method - Google Patents

Flange adapter for balancing load and locking method Download PDF

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Publication number
CN116906697A
CN116906697A CN202310850632.6A CN202310850632A CN116906697A CN 116906697 A CN116906697 A CN 116906697A CN 202310850632 A CN202310850632 A CN 202310850632A CN 116906697 A CN116906697 A CN 116906697A
Authority
CN
China
Prior art keywords
cavity
central body
fasteners
screw
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310850632.6A
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Chinese (zh)
Inventor
许晓飞
崔长胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Huaxin Energy Equipment Co ltd
Original Assignee
Tianjin Huaxin Energy Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Huaxin Energy Equipment Co ltd filed Critical Tianjin Huaxin Energy Equipment Co ltd
Priority to CN202310850632.6A priority Critical patent/CN116906697A/en
Publication of CN116906697A publication Critical patent/CN116906697A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention discloses a flange adapter for balancing load, which belongs to the field of adapters and comprises a central body with a through middle part, wherein a cavity is circumferentially arranged in the central body, the pressure intensity in the cavity is adjustable, a plurality of first fasteners and second fasteners are movably arranged on the upper surface and the lower surface of the central body in sequence, the pressure intensity in the cavity is increased so as to enable the first fasteners and the second fasteners to move oppositely, and a plurality of jackscrew assemblies for limiting the first fasteners and the second fasteners to be arranged at the inner end of the cavity are arranged on one circumference of the side surface of the central body; according to the invention, the cavity is arranged on the central body, the plurality of first fasteners and the plurality of second fasteners are movably arranged on the central body up and down, when the novel adapter is used, the pressure intensity of the cavity is increased, the first fasteners and the second fasteners are forced to move oppositely, the load balance of the fasteners on the final adapter can be ensured, the safety performance is high, the installation method is not limited by the size of an inlet, the installation is convenient, and the installation speed can be greatly increased.

Description

Flange adapter for balancing load and locking method
Technical Field
The invention relates to the technical field of adapters, in particular to a flange adapter for balancing load and a locking method.
Background
The oil drilling and well repairing wellhead blowout preventer or the drilling four-way joint is connected with the casing head by adopting bolts to connect the upper flange and the lower flange, a hammering spanner is required to be used on site, and operators are easy to be injured; the installation time is long; the bolt load is uneven; load waste (most of the torque force is used to overcome thread friction); moreover, the use of manual screw bolts can lead to unbalanced load on the load surface of the adapter, the long-time use safety performance can not be ensured, and the thread surface can be occluded and adhered; in a wellhead with high explosion-proof requirement level, because a hammering spanner is needed for installing the wellhead, an operator uses a hammer to strike the wellhead, spark generation cannot be avoided, and wellhead explosion-proof cannot be realized; and well head installation is very difficult in the case of limited space at a particular well head.
Disclosure of Invention
The invention aims to provide a flange adapter for balancing load and a locking method, which are used for solving the defects that in the prior art, the surface load is uneven when the adapter is installed, sparks cannot be avoided when an operator hammers nuts, the safety is extremely poor, and the installation is very difficult due to limited mouth space.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme: the utility model provides a flange adapter of balanced load, includes the center body that the middle part link up, the internal axial of center is provided with the cavity, and the pressure in the cavity is adjustable, and the upper and lower movable mounting in proper order of center has many first fasteners, second fastener, the pressure increases in the cavity to make first fastener, second fastener move in opposite directions, a plurality of be used for spacing are installed to center body side a week first fastener, second fastener are arranged in the jackscrew subassembly of cavity inner.
The center body comprises a gland which is detachably connected, a shell body, an annular sinking groove is formed in one side of the shell body facing the gland, and the gland covers the sinking groove and is connected through bolt fastening so as to form a cavity.
The first fastening pieces are movably arranged on the top surface of the central body in a circumferential array mode, and the second fastening pieces are correspondingly and circumferentially arranged on the bottom surface of the central body in a movable array mode.
The first fastener comprises a first screw rod penetrating through the top surface of the central body in a clearance way, and one end of the first screw rod, which is arranged in the cavity, is connected with a piston ring;
the second fastener comprises a second screw rod penetrating through the bottom surface of the central body in a clearance way, one end of the second screw rod arranged in the cavity is also connected with a piston ring, and nuts are arranged on rod bodies of the first screw rod and the second screw rod arranged outside the central body in a threaded fit way.
The jackscrew assembly comprises a jackscrew gland radially arranged on the side wall of the central body, the jackscrew gland is in threaded communication with the cavity, a jackscrew screw is movably arranged on the jackscrew gland in a matched mode, a locking block is rotatably arranged at one end of the jackscrew, which is arranged in the cavity, of the piston ring, a locking bevel edge is arranged on the piston ring in a matched mode, and the locking block is arranged in the locking bevel edge to limit the piston ring.
The shell is provided with a pressure inlet valve and a pressure relief valve, the pressure inlet valve and the pressure relief valve are communicated with the cavity through a hydraulic flow passage, and two ports of the hydraulic flow passage communicated cavity are arranged in an area between a corresponding piston ring and the bottom wall or the top wall of the cavity adjacent to the piston ring.
A locking method of a flange adapter based on the balanced load comprises the following steps:
1) Threading a first screw rod through a mounting hole on a connecting blowout preventer or wellhead device and manually screwing a nut, threading a second screw rod through a mounting hole on a mounting casing head or wellhead four-way joint and manually screwing the nut;
2) Closing the pressure release valve, pressurizing the pressure inlet valve, and enabling the upper piston ring and the lower piston ring to move in opposite directions at the moment, so that acting forces are generated by the corresponding first screw rod and the corresponding second screw rod, the corresponding blowout preventer and the wellhead four-way joint;
3) Until the rated pressure value is reached in the cavity, the jackscrew is rotated to drive the locking block to be placed in the locking bevel edge to fix the piston ring.
4) And finally, opening a pressure release valve to release the pressure in the cavity, and completing the installation of the flange adapter.
According to the technical scheme, the invention has the following effects:
according to the invention, the cavity is arranged on the central body, the plurality of first fasteners and the plurality of second fasteners are movably arranged on the central body up and down, when the pressure of the cavity is increased and the first fasteners and the second fasteners are forced to move in opposite directions, the process is the uniform tensioning and mounting process of the corresponding connecting parts of the first fasteners and the second fasteners, wherein the piston rings on the first fasteners and the second fasteners are limited by using the jackscrew assembly, and after pressure release, the first fasteners and the second fasteners are arranged in the same cavity, so that the load balance of the fasteners on the final adapter can be ensured, the safety performance is high, the mounting method is not limited by the size of an inlet, and the mounting speed can be greatly accelerated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken in the direction of FIG. 1 A-A;
FIG. 3 is a top view of the present invention;
FIG. 4 is a sectional view taken in the direction B-B in FIG. 3;
FIG. 5 is an enlarged view of FIG. 4 at A;
wherein: 1a shell, 2 a gland, 3 a jackscrew assembly, 4 a first screw, 5 a second screw, 6 a cavity, 7 a piston ring, 8 a hydraulic flow passage, 9 a pressure inlet valve, 10 a pressure relief valve, 11 a locking block, 12 a jackscrew gland, 13 a locking screw and 14 a sealing ring.
Description of the embodiments
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 5, the invention discloses a flange adapter for balancing loads, which comprises a central body with a through middle part, wherein a cavity 6 is axially arranged in the central body, the pressure in the cavity 6 is adjustable, a plurality of first fasteners and second fasteners are movably arranged on the upper surface and the lower surface of the central body in sequence, the pressure in the cavity 6 is increased so as to enable the first fasteners and the second fasteners to move in opposite directions, and a plurality of jackscrew assemblies 3 for limiting the first fasteners and the second fasteners to be arranged at the inner end of the cavity 6 are arranged on one periphery of the side surface of the central body.
When the butt joint device is used, the first fastening piece and the second fastening piece are connected to the flanges of the corresponding devices, and the first fastening piece and the second fastening piece are pushed to move in opposite directions by pressurizing the cavity 6 (hydraulic oil is added in the embodiment), so that the butt joint device is installed and locked.
The first fastening piece circumferential array is movably arranged on the top surface of the central body, the second fastening piece is movably arranged on the bottom surface of the central body corresponding to the circumference, the arrangement mode can further balance the load when the final installation of the fastening piece is completed, and the specific structure of the fastening piece in the embodiment is provided by continuously observing the figure 4, wherein the first fastening piece comprises a first screw 4 penetrating through the top surface of the central body at a gap, and one end of the first screw 4 arranged in the cavity 6 is connected with a piston ring 7;
the second fastening piece comprises a second screw rod 5 penetrating through the bottom surface of the central body in a clearance way, one end of the second screw rod 5 arranged in the cavity 6 is also connected with a piston ring 7, nuts are arranged on rod bodies of the first screw rod 4 and the second screw rod 5 arranged outside the central body in a threaded fit way, and in order to ensure the tightness of the device in production, a sealing ring 14 is arranged between the piston ring 7 and the cavity 6.
Looking at fig. 5, the jackscrew assembly in this embodiment specifically includes a jackscrew gland 12 radially installed on a side wall of the central body, the jackscrew gland 12 is in threaded communication with the cavity 6, a sealing ring 14 is installed in the cavity 6, a jackscrew screw 13 is movably installed on the jackscrew gland 12 in a matching manner, and a locking block 11 is rotatably installed at one end of the jackscrew screw 13 placed in the cavity 6; in addition, one end of the jackscrew screw 13 extending into the jackscrew gland 12 is a smooth cylinder, and a sealing ring is also arranged on the cylinder.
The piston ring 7 is provided with a locking bevel edge in a matching manner, the locking block 11 is arranged in the locking bevel edge to limit the piston ring 7, when in use, the jackscrew screw 13 is rotated to drive the locking block 11 to move forwards and backwards in a radial manner, then the locking block 11 is controlled to be inserted into the corresponding locking bevel edge on the piston ring 7, the shell 1 is provided with a pressure inlet valve 9 and a pressure release valve 10, the pressure inlet valve 9 and the pressure release valve 10 are communicated with the cavity 6 through a hydraulic flow passage 8, and two ports of the hydraulic flow passage 8 communicated with the cavity 6 are arranged in an area between the corresponding piston ring 7 and the bottom wall or the top wall of the cavity 6 adjacent to the piston ring 7; when the pressure is applied, the pressure can push the first screw 4 and the second screw 5 to move towards each other.
For the installation of convenient spare part, the central body adopts the combination formula installation, and the central body is including detachable gland 2 of connection, casing 1 is equipped with annular heavy groove towards gland 2 one side, and gland 2 covers in heavy groove and passes through bolt-up connection to form cavity 6, during the manufacturing, the limit portion circumference of casing 1 through-hole outwards protrudes, and sealing washer 14 is installed to the convenience to installation gland 2, and the leakproofness of cavity is more stable after the combination.
The specific application is as follows:
1) Firstly, a first screw rod 4 penetrates through a mounting hole on a connecting blowout preventer or a wellhead device and is manually screwed with a nut, and a second screw rod 5 penetrates through a mounting hole on a mounting casing head or a wellhead four-way and is manually screwed with a nut, so that preliminary connection between an adapter and two connecting ends is realized;
2) Closing a pressure release valve 10 to pressurize the pressure inlet valve 9, and enabling the upper piston ring 7 and the lower piston ring 7 to move in opposite directions at the moment, so that acting forces are generated by the corresponding first screw 4 and second screw 5, the corresponding blowout preventer and wellhead four-way joint;
3) Until the rated pressure value is reached in the cavity 6, the jackscrew 13 is rotated to drive the locking block 11 to be arranged in the locking bevel edge to fix the piston ring 7, and the piston ring 7 is longitudinally and firmly locked at the moment;
4) Finally, the pressure release valve 10 is opened to release the pressure in the cavity 6, at the moment, the flange adapter is installed, the installed adapter is stressed and balanced in load, tools such as a wrench are not needed for installation, the operation space required for installation is reduced, and the installation is more stable, safer and faster;
5) When the device is disassembled, the pressure release valve 10 is closed, the pressure inlet valve 9 is used for pressure inlet, the pressure is higher than the rated working pressure (5-10 Mpa), the specific pressure is determined according to the actual condition of the site, after the specific pressure reaches the pressure, the jackscrew screw 13 in the jackscrew assembly 3 is manually unscrewed, the locking block 11 is driven to move backwards, the locking of the piston ring 7 is released, the pressure is released, the piston ring 7 moves towards two ends after the pressure is lost and the limitation of the locking block 7, nuts on the first screw 4 and the second screw 5 are manually disassembled, and the device is disassembled.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.

Claims (7)

1. The utility model provides a flange adapter of balanced load, its characterized in that, includes the center body that the middle part link up, the internal circumference of center is provided with cavity (6), and the pressure in cavity (6) is adjustable, and the upper and lower movable mounting in proper order of center has many first fastener, second fastener, the pressure increases in cavity (6) to make first fastener, second fastener move in opposite directions, a plurality of be used for spacing are installed to center body side a week first fastener, second fastener are arranged in jackscrew subassembly (3) of cavity (6) inner.
2. The flange adapter for balancing loads according to claim 1, characterized in that the central body comprises a detachably connected gland (2) and a shell (1), an annular sinking groove is formed in one side of the shell (1) facing the gland (2), and the gland (2) covers the sinking groove and is connected through bolt fastening to form a cavity (6).
3. The load balancing flange adapter of claim 1, wherein the first circumferential array of fasteners is movably mounted to the top surface of the central body and the second circumferential array of fasteners is movably mounted to the bottom surface of the central body.
4. A flange adapter for balancing loads according to claim 3, characterized in that the first fastening member comprises a first screw (4) penetrating through the top surface of the central body in a clearance way, and a piston ring (7) is connected to one end of the first screw (4) placed in the cavity (6);
the second fastening piece comprises a second screw rod (5) penetrating through the bottom surface of the central body in a clearance way, one end of the second screw rod (5) arranged in the cavity (6) is also connected with a piston ring (7), and nuts are installed on rod bodies of the first screw rod (4) and the second screw rod (5) arranged outside the central body in a threaded fit way.
5. The flange adapter for balancing loads according to claim 4, wherein the jackscrew assembly (3) comprises a jackscrew gland (12) radially mounted on the side wall of the central body, jackscrew gland threads (12) are communicated with the cavity (6), jackscrew screws (13) are mounted on the jackscrew gland (12) in a movable fit mode, locking blocks (11) are mounted on one ends of the cavity (6) in a threaded communication mode, locking oblique edges are arranged on the piston rings (7) in a matched mode, and the locking blocks (11) are placed in the locking oblique edges to limit the piston rings (7).
6. A flange adapter for balancing loads according to claim 2, characterized in that the housing (1) is provided with a pressure inlet valve (9) and a pressure relief valve (10), the pressure inlet valve (9) and the pressure relief valve (10) are communicated with the cavity (6) through a hydraulic flow passage (8), and two ports of the hydraulic flow passage (8) communicated with the cavity (6) are arranged in an area between the corresponding piston ring (7) and the bottom wall or the top wall of the cavity (6) adjacent to the piston ring.
7. A method for locking a flange adapter based on load balancing according to any one of claims 1 to 6, comprising the steps of:
1) Threading a first screw (4) through a mounting hole on a connecting blowout preventer or wellhead device and manually screwing a nut, and threading a second screw (5) through a mounting hole on a mounting casing head or wellhead four-way joint and manually screwing a nut;
2) Closing a pressure release valve (10) to pressurize the pressure inlet valve (9), and enabling the upper piston ring (7) and the lower piston ring (7) to move in opposite directions at the moment, so that acting forces are generated by the corresponding first screw (4) and second screw (5) and the corresponding blowout preventer and wellhead four-way joint;
3) Until the rated pressure value is reached in the cavity (6), the jackscrew screw (13) is rotated to drive the locking block (11) to be arranged in the locking bevel edge to fix the piston ring (7);
4) And finally, opening a pressure release valve (10) to release the pressure in the cavity (6), and completing the installation of the flange adapter.
CN202310850632.6A 2023-07-11 2023-07-11 Flange adapter for balancing load and locking method Pending CN116906697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310850632.6A CN116906697A (en) 2023-07-11 2023-07-11 Flange adapter for balancing load and locking method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310850632.6A CN116906697A (en) 2023-07-11 2023-07-11 Flange adapter for balancing load and locking method

Publications (1)

Publication Number Publication Date
CN116906697A true CN116906697A (en) 2023-10-20

Family

ID=88367636

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310850632.6A Pending CN116906697A (en) 2023-07-11 2023-07-11 Flange adapter for balancing load and locking method

Country Status (1)

Country Link
CN (1) CN116906697A (en)

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