CN217669147U - Hydraulic safety valve dismounting tool - Google Patents

Abstract

The utility model belongs to the technical field of the valve is dismantled, a relief valve extracting tool surges is disclosed, including first ferrule subassembly, second ferrule subassembly and ejector pin subassembly, first ferrule subassembly cramps in the stiff end of relief valve that surges to stabilize with the stiff end of relief valve that surges and be connected, second ferrule subassembly cramps in the drive end of relief valve that surges, stabilizes with the drive end of relief valve that surges and is connected. The first hoop component is provided with a first lug plate in a protruding mode, the second hoop component is provided with a second lug plate in a protruding mode, and the ejector rod component is movably arranged on the first lug plate and used for pushing the second lug plate so that the driving end can rotate relative to the fixed end. When the dismounting tool is used, the second ferrule assembly and the driving end can be rotated only by applying torque to the second ear plate through the ejector rod assembly, and then the driving end is dismounted from the fixed end, so that the operation efficiency is high, the cost is low, and the safety accidents are reduced.

Description

Hydraulic safety valve dismounting tool

Technical Field

The utility model relates to a technical field is dismantled to the valve, especially relates to a relief valve extracting tool surges.

Background

A christmas tree is an assembly located at the opening to the top end of a well, including valves for measurement and maintenance, safety systems, and a series of monitoring instruments. The christmas tree can be connected from the production tubing and production tubing downhole, while acting as an important barrier to isolate the top of the well from the external environment. The christmas tree includes a plurality of valves that can be used to regulate or prevent the production of crude oil, natural gas, and liquids from the well. The hydraulic safety valve on the offshore Christmas tree well is key equipment for automatically closing the well when well opening and well closing actions under a normal state and dangerous accidents such as fire disasters are performed in a full-automatic mode.

The failure rate of the hydraulic safety valve on the Christmas tree well is very high due to factors such as the property of a mining medium, the fluid temperature, the driving pressure of the safety valve, the operating environment and the like of the offshore oil and gas production platform, and the hydraulic safety valve is difficult to disassemble during maintenance. The relief valve that surges includes stiff end and drive end, drive end and stiff end threaded connection, because the external diameter of stiff end and drive end is great, when using current extracting tool operation, be difficult to dismantle the drive end from the stiff end, the operating efficiency is lower and with high costs, expends time for a long time, has certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a relief valve extracting tool surges can improve the operating efficiency, reduces and overhauls the maintenance cost, avoids having safe risk.

To achieve the purpose, the utility model adopts the following technical proposal:

there is provided a relief valve removal tool comprising:

the first hoop component hoops the fixed end of the hydraulic safety valve, and a first lug plate is convexly arranged on the first hoop component;

the second hoop component is hooped at the driving end of the hydraulic safety valve, and a second lug plate is convexly arranged on the second hoop component;

and the ejector rod assembly is movably arranged on the first ear plate and used for ejecting the second ear plate so as to enable the driving end to rotate relative to the fixed end.

As a preferred solution of the hydraulic relief valve dismounting tool provided by the present invention, the first ear plate extends along the axial direction of the first ferrule assembly and overhangs the first ferrule assembly;

the second ear plate extends axially of the second ferrule assembly and overhangs the second ferrule assembly.

As the utility model provides a relief valve extracting tool's preferred scheme surges, the ejector pin subassembly includes first screw rod, be provided with first screw hole on the first otic placode, first screw rod can the screw in the first screw hole to can push away the second otic placode.

As the utility model provides a relief valve extracting tool's preferred scheme surges, first screw rod is kept away from one side of second otic placode is provided with the hexagonal and revolves the spiral portion of twisting, the hexagonal is revolved the spiral portion of twisting and is configured to be used for with revolve wrong instrument cooperation, so that first screw rod is relative first otic placode removes.

As a preferred scheme of the hydraulic relief valve dismounting tool provided by the utility model, two first ear plates are arranged on the first hoop component, and the two first ear plates are respectively arranged on two opposite sides of the first hoop component and are both parallel to the radial direction of the first hoop component;

the second ear plates are arranged on the second hoop component in two numbers, and the two second ear plates are respectively arranged on two opposite sides of the second hoop component and are parallel to the radial direction of the second hoop component.

As the utility model provides a relief valve extracting tool surges's preferred scheme, first ferrule subassembly with second ferrule subassembly all includes fastener and relative first semi-ring and the second semi-ring that sets up, first semi-ring with pass through between the second semi-ring the fastener is connected.

As the utility model provides a relief valve extracting tool surges's preferred scheme, first semi-ring with the both ends of second semi-ring all form connecting portion along its radial outside extension, the fastener includes bolt and nut, the bolt can pass the connecting portion of first semi-ring with the connecting portion of second semi-ring, and with the nut is connected.

As the utility model provides a relief valve extracting tool's preferred scheme surges, first semi-ring with all be provided with at least one lip block in the second semi-ring.

As the utility model provides a relief valve extracting tool's preferred scheme surges, the non-slip mat with between the first semi-ring and the non-slip mat with be welded connection between the second semi-ring.

As the utility model provides a relief valve extracting tool surges's preferred scheme still includes reserve ejector pin subassembly, reserve ejector pin subassembly includes the second screw rod, be provided with the second screw hole on the second otic placode, the second screw rod can the screw in the second screw hole to can the butt in on the first otic placode.

The utility model has the advantages that:

the utility model provides a relief valve extracting tool surges, including first ferrule subassembly, second ferrule subassembly and ejector pin subassembly, first ferrule subassembly cramps in the stiff end of relief valve that surges to stabilize with the stiff end of the relief valve that surges and be connected, second ferrule subassembly cramps in the drive end of the relief valve that surges, stabilizes with the drive end of the relief valve that surges and is connected. The first hoop component is provided with a first lug plate in a protruding mode, the second hoop component is provided with a second lug plate in a protruding mode, and the ejector rod component is movably arranged on the first lug plate and used for pushing the second lug plate so that the driving end can rotate relative to the fixed end. When dismantling the relief valve that surges, at first with first ferrule subassembly and second ferrule subassembly installation fixed, order about the ejector pin subassembly and remove first otic placode relatively, until the ejector pin subassembly top is tight on the second otic placode, afterwards, continue to drive the relative first otic placode of ejector pin subassembly and remove, because the stiff end of the relief valve that surges is firm motionless, the drive end is threaded connection with the stiff end, consequently, first ferrule subassembly is firm motionless, and the second otic placode drives second ferrule subassembly and drive end rotation under the top push effect of ejector pin subassembly, and then dismantle the drive end from the stiff end. When the dismounting tool is used, the second ferrule assembly and the driving end can be rotated only by applying torque to the second ear plate through the ejector rod assembly, the operation efficiency is high, the cost is low, and safety accidents are reduced. In addition, because first ferrule subassembly and second ferrule subassembly are cramped respectively in the stiff end and the drive end of relief valve that surges, the great radial dimension of stiff end and drive end can be adapted to the two for the dismantlement process is more smooth.

Drawings

Fig. 1 is a schematic structural view of a hydraulic relief valve dismounting tool according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first ferrule assembly according to an embodiment of the present invention;

FIG. 3 isbase:Sub>A view in the direction A-A in FIG. 2;

fig. 4 is a schematic structural diagram of a first half ring according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a hydraulic relief valve dismounting tool provided in the second embodiment of the present invention.

In the figure:

1. a first ferrule assembly; 2. a second ferrule assembly; 3. a push rod assembly; 4. an anti-skid cushion block; 5. a standby ejector rod component;

11. a first ear plate; 12. a fastener; 13. a first half ring; 14. a second half ring; 15. a connecting portion;

111. a first threaded hole; 121. a bolt; 122. a nut;

21. a second ear plate;

31. a first screw; 32. a hexagonal screw portion; 33. a stop portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Example one

As shown in fig. 1 to 3, the present embodiment provides a hydraulic relief valve dismounting tool which can be used to dismount a fixed end and a driving end of a hydraulic relief valve. The removal tool comprises a first ferrule assembly 1, a second ferrule assembly 2 and a ram assembly 3.

Wherein, the first ferrule subassembly 1 is hooped tightly in the stiff end of relief valve that surges to with the stiff end of relief valve that surges firmly connected. The second ferrule component 2 is tightly hooped at the driving end of the hydraulic safety valve so as to be stably connected with the driving end of the hydraulic safety valve. Referring to fig. 1, a first ear plate 11 is projected from the first ferrule assembly 1, and a second ear plate 21 is projected from the second ferrule assembly 2. The ejector rod assembly 3 is movably disposed on the first ear plate 11 and used for pushing the second ear plate 21 so as to rotate the driving end relative to the fixed end.

When the hydraulic safety valve is disassembled, the first hoop component 1 and the second hoop component 2 are installed and fixed, and the ejector rod component 3 is driven to move relative to the first lug plate 11 until the ejector rod component 3 is tightly propped against the second lug plate 21. Subsequently, the ejector rod component 3 is continuously driven to move relative to the first ear plate 11, and as the fixed end of the hydraulic safety valve is stable and fixed, and the driving end is in threaded connection with the fixed end, the first ferrule component 1 is stable and fixed, and the second ear plate 21 drives the second ferrule component 2 and the driving end to rotate under the pushing action of the ejector rod component 3, so that the driving end is detached from the fixed end. When the dismounting tool is used, the rotation of the second ferrule assembly 2 and the driving end can be realized only by applying torque to the second ear plate 21 through the ejector rod assembly 3, the operation efficiency is high, the cost is low, and the safety accidents are reduced. In addition, because first ferrule subassembly 1 and second ferrule subassembly 2 cramp in the stiff end and the drive end of relief valve that surges respectively, the great radial dimension of stiff end and drive end can be adapted to the two for the dismantlement process is more smooth.

The first ear plate 11 extends in the axial direction of the first ferrule assembly 1 and overhangs the first ferrule assembly 1, as shown in fig. 3 and 4. The second ear plate 21 extends in the axial direction of the second ferrule assembly 2 and overhangs the second ferrule assembly 2. Specifically, referring to fig. 1, after the first and second hoop assemblies 1 and 2 are installed in the hydraulic relief valve, the first ear plate 11 extends from the bottom end of the first hoop assembly 1 to the top end of the second hoop assembly 2, and the second ear plate 21 extends from the top end of the second hoop assembly 2 to the bottom end of the first hoop assembly 1. The push rod assembly 3 is connected to the upper end of the first ear plate 11 (i.e. the end of the first hoop assembly 1 is suspended) in a penetrating manner, and can push the second ear plate 21.

Referring to fig. 1, the ram assembly 3 includes a first screw 31. Referring to fig. 4, the first ear plate 11 is provided with a first threaded hole 111, and the first screw 31 can be screwed into the first threaded hole 111 and can push the second ear plate 21.

Referring to fig. 1, when the safety valve is disassembled, the first screw 31 is screwed to make one end of the first screw 31 close to the second ear plate 21 gradually abut against the second ear plate 21, and then, the first screw 31 is further screwed, and the first screw 31 moves relative to the first ear plate 11 to push the second ear plate 21, so as to apply torque to the second ferrule assembly 2 until the driving end is disassembled.

Further, referring to fig. 1, a hexagonal screw portion 32 is provided on a side of the first screw 31 away from the second ear plate 21. The hexagonal screw 32 is configured to be engaged with a screw tool, that is, the screw tool can be engaged with the hexagonal screw 32 to rotate the first screw 31 by the hexagonal screw 32, thereby moving the first screw 31 relative to the first ear plate 11.

Optionally, referring to fig. 1, a stopping portion 33 is disposed at an end of the first screw 31 away from the hexagonal screwing portion 32, and the stopping portion 33 is located between the first ear plate 11 and the second ear plate 21, so that on one hand, the first screw 31 can be prevented from being disengaged from the first ear plate 11, and on the other hand, a contact area between the first screw 31 and the second ear plate 21 can be increased, and stability during pushing is improved.

Alternatively, referring to fig. 1, two first ear plates 11 are disposed on the first ferrule assembly 1, and two first ear plates 11 are disposed on two opposite sides of the first ferrule assembly 1 and are parallel to the radial direction of the first ferrule assembly 1. The dashed transverse line in fig. 1 is the centerline (in the diameter direction) of the first ferrule assembly 1, and two first ear plates 11 are respectively disposed on both sides of the centerline.

Similarly, two second ear plates 21 are disposed on the second ferrule assembly 2, and two second ear plates 21 are disposed on two opposite sides of the second ferrule assembly 2 and are parallel to the radial direction of the second ferrule assembly 2. The two first ear plates 11 are provided with the ejector rod assemblies 3, when the safety valve is disassembled, the ejector rod assemblies 3 on the two sides can respectively push the corresponding second ear plates 21 so as to apply torque to the two sides of the second hoop assembly 2, and the second hoop assembly 2 is guaranteed to be stressed uniformly in the process of torsional disassembly.

Alternatively, in this embodiment, referring to fig. 2, each of the first hoop assembly 1 and the second hoop assembly 2 includes a fastener 12 and a first half ring 13 and a second half ring 14 disposed opposite to each other, the first half ring 13 and the second half ring 14 are connected by the fastener 12, and after the connection, the first half ring 13 and the second half ring 14 disposed opposite to each other can be tightened on the fixed end or the driving end.

As shown in fig. 2 and 3, both ends of first half ring 13 and second half ring 14 extend outward in the radial direction thereof to form connecting portions 15. The fastening member 12 includes a bolt 121 and a nut 122, the bolt 121 can pass through the connecting portion 15 of the first half ring 13 and the connecting portion 15 of the second half ring 14 and is connected with the nut 122, and tightening the nut 122 can tighten the first half ring 13 and the second half ring 14 on the fixed end or the driving end, which is convenient and fast to operate.

In addition, the first half ring 13 and the second half ring 14 can be adapted to various radial sizes of safety valves, and the nut 122 can be tightened to firmly connect the first ferrule assembly 1 and the fixed end, and firmly connect the second ferrule assembly 2 and the driving end.

Referring to fig. 2 and 3, at least one non-slip block 4 is provided in each of the first half ring 13 and the second half ring 14. The anti-slip cushion block 4 is used for being in contact with the outer walls of the fixed end and the driving end to increase friction resistance, so that an anti-slip effect is achieved, the first ferrule assembly 1 is prevented from sliding relative to the fixed end, and the second ferrule assembly 2 is prevented from sliding relative to the driving end. Illustratively, two anti-skid blocks 4 are symmetrically arranged in each of the first half ring 13 and the second half ring 14. In other embodiments, the number of the anti-skid blocks 4 can be set according to specific overhaul conditions.

In this embodiment, the anti-slip pad 4 and the first half ring 13 and the anti-slip pad 4 and the second half ring 14 are all welded, so that the connection is stable and firm, and the anti-slip pad 4 and the second half ring are not easy to loosen.

It will be appreciated that the tool may also be used to screw the driving end of the safety valve to the fixed end by merely reversing the position of the first and second ferrule assemblies 1, 2 (with reference to the orientation of figure 1) when the driving end of the safety valve is mounted to the fixed end.

Example two

The present embodiment provides a tool for detaching a hydraulic safety valve, which is different from the first embodiment in that:

referring to fig. 5, the hydraulic relief valve dismounting tool provided in this embodiment further includes a backup ram assembly 5. The back-up ram assembly 5 may be used to increase the amount of torque applied by ram assembly 3 when the amount of torque applied is insufficient to cause the first ferrule assembly 1 to rotate the drive end.

Specifically, the standby mandril assembly 5 comprises a second screw rod, a second threaded hole is arranged on the second ear plate 21, and the second screw rod can be screwed into the second threaded hole and can abut against the first ear plate 11.

After the second screw abuts against the first ear plate 11, the second screw is continuously screwed, and the first ear plate 11 is always fixed, so that the second ear plate 21 can move under the action of thread engagement with the second screw, and the second ferrule assembly 2 is driven to rotate.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A relief valve withdrawal tool that surges, comprising:

the first hoop component (1) is hooped at the fixed end of the hydraulic safety valve, and a first lug plate (11) is convexly arranged on the first hoop component (1);

the second hoop component (2) is tightly hooped at the driving end of the hydraulic safety valve, and a second lug plate (21) is convexly arranged on the second hoop component (2);

the ejector rod component (3) is movably arranged on the first ear plate (11), and the ejector rod component (3) is used for ejecting the second ear plate (21) so that the driving end can rotate relative to the fixed end.

2. A hydraulic safety valve disassembly tool according to claim 1,

the first ear plate (11) extends along the axial direction of the first ferrule assembly (1) and is suspended out of the first ferrule assembly (1);

the second ear plate (21) extends in the axial direction of the second ferrule assembly (2) and overhangs the second ferrule assembly (2).

3. A hydro-operated safety valve dismounting tool according to claim 1, wherein the ram assembly (3) comprises a first screw (31), the first lug plate (11) is provided with a first threaded hole (111), and the first screw (31) can be screwed into the first threaded hole (111) and can push the second lug plate (21).

4. A hydro-operated safety valve removal tool according to claim 3, wherein a side of the first screw (31) remote from the second lug (21) is provided with a hexagonal screw (32), the hexagonal screw (32) being configured for cooperation with a screw tool to move the first screw (31) relative to the first lug (11).

5. A hydraulic safety valve disassembly tool according to claim 1,

two first ear plates (11) are arranged on the first hoop component (1), and the two first ear plates (11) are respectively arranged on two opposite sides of the first hoop component (1) and are parallel to the radial direction of the first hoop component (1);

the second ear plates (21) are arranged on the second hoop component (2), and the two second ear plates (21) are respectively arranged on two opposite sides of the second hoop component (2) and are all parallel to the radial direction of the second hoop component (2).

6. A hydro-dynamic safety valve removal tool according to claim 1, wherein the first ferrule assembly (1) and the second ferrule assembly (2) each comprise a fastener (12) and a first half ring (13) and a second half ring (14) arranged opposite each other, the first half ring (13) and the second half ring (14) being connected to each other by the fastener (12).

7. A hydraulic relief valve dismounting tool according to claim 6, characterized in that both ends of said first half ring (13) and said second half ring (14) extend radially outwards to form a connecting portion (15), said fastener (12) comprises a bolt (121) and a nut (122), said bolt (121) being capable of passing through said connecting portion (15) of said first half ring (13) and said connecting portion (15) of said second half ring (14) and being connected with said nut (122).

8. A hydraulic relief valve disassembly tool according to claim 6, wherein each of said first half-ring (13) and said second half-ring (14) is provided with at least one anti-skid block (4) inside.

9. A hydraulically operated safety valve dismounting tool according to claim 8, characterized in that the non-slip block (4) and the first half ring (13) and the non-slip block (4) and the second half ring (14) are welded.

10. A hydraulic safety valve dismounting tool according to claim 1, further comprising a backup ram assembly (5), said backup ram assembly (5) comprising a second threaded rod, said second lug plate (21) being provided with a second threaded hole, said second threaded rod being capable of being screwed into said second threaded hole and of abutting against said first lug plate (11).

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