Dismantling tool for valve seat of ball valve of nuclear power facility

Abstract

The utility model relates to a nuclear power facility ball valve seat dismantling tool. The nuclear power facility ball valve seat dismantling tool is used for dismantling a valve seat of a ball valve. According to the dismounting tool for the valve seat of the ball valve of the nuclear power facility, the operation piece with the first screw hole and the second screw hole which are provided with the threads in the opposite screwing directions is used, the two pressing and holding assemblies are arranged in a matched mode, the effect of applying force to the two sides of the valve seat at the same time is achieved, and the dismounting and mounting efficiency of the valve seat is greatly improved. And moreover, the pressure plate can uniformly apply force to the valve seat in the disassembly and assembly process, so that the valve seat or a sealing ring is prevented from being damaged due to overlarge local stress, and the service life of parts is prolonged. And moreover, an operator only needs to rotate the operating piece to realize the simultaneous action of the two pressing plates, so that the operation difficulty is reduced, and the disassembly and assembly efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of nuclear power facility tools, in particular to a ball valve seat removal tool for nuclear power facility. Background Art

[0002] Nuclear power facilities often use a variety of valves to control the on and off of the corresponding circuits. Therefore, the sealing and precision of the valves are particularly important. Once important parts are worn or even fail, the valves need to be disassembled to replace new and effective parts. For example, if the sealing effect between the valve seat and the valve body of the ball valve is insufficient, the valve seat needs to be disassembled to expose the sealing ring and replace it; of course, there are other situations that require the valve seat to be disassembled.

[0003] In actual operation, for some products that cannot be pressed by hydraulic presses, operators need to use knocking, prying and other methods to disassemble and assemble the valve seat. The entire disassembly or assembly process is very cumbersome, with low disassembly efficiency and easy to cause irreversible damage to the valve. Furthermore, during the assembly process, once the valve seat is in a bad position, the valve seat will squeeze the sealing ring, causing damage or even failure of the sealing ring, and low assembly yield. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a ball valve seat removal tool for nuclear power facilities, which can solve the problems of low valve seat disassembly and assembly efficiency and easy damage of the valve seat and the sealing ring during the disassembly and assembly process.

[0005] The utility model provides a ball valve seat removal tool for nuclear power facilities, which comprises:

[0006] An operating member, wherein a first screw hole and a second screw hole are formed on the operating member, wherein the first screw hole and the second screw hole are located in the same straight line direction and are opposite to each other, wherein a left-handed thread is formed in the first screw hole and a right-handed thread is formed in the second screw hole; and

[0007] Two pressing assemblies, each of which comprises a screw, a movable connecting piece and a pressing plate, wherein one of the screws is screwed to the first screw hole, and the other screw is screwed to the second screw hole, the two screws are connected to the two movable connecting pieces one by one, the two movable connecting pieces are connected to the two pressing plates one by one, and each pressing plate can move relative to the screw through the movable connecting piece;

[0008] Wherein, the two pressing plates are used to abut against the valve seat, and when the operating member rotates, the two screw rods extend or retract into the operating member together, so that the two pressing plates respectively support the valve seat to move to disassemble or assemble the valve seat.

[0009] Preferably, the operating member is provided with a first connecting hole and a second connecting hole, the left-handed thread is provided on at least part of the hole wall of the first connecting hole to form the first screw hole, and the right-handed thread is provided on at least part of the hole wall of the second connecting hole to form the second screw hole.

[0010] Preferably, the nuclear power facility ball valve seat removal tool also includes a first nut and a second nut, the first nut is arranged on the first connecting hole, the second nut is arranged on the second connecting hole, the first nut is provided with the left-handed thread, and the second nut is provided with the right-handed thread.

[0011] Preferably, the movable connecting member includes a pin shaft, the pin shaft passes through the end of the screw rod, and the pin shaft is arranged on the pressure plate.

[0012] Preferably, each of the pressing plates is provided with a mounting hole at a central position, and each of the pin shafts is disposed in each of the mounting holes in a one-to-one correspondence.

[0013] Preferably, a movable avoidance groove is provided at the opening of the mounting hole.

[0014] Preferably, the pressing plate is provided with a chamfer at the outer edge.

[0015] Preferably, the operating member is columnar as a whole, and the first screw hole and the second screw hole are respectively located at two ends of the operating member.

[0016] Preferably, the operating member is provided with a torque tool connecting groove on the peripheral side wall, and the torque tool connecting groove is used to be connected to a torque tool, so that the torque tool can drive the operating member to rotate through the torque tool connecting groove.

[0017] Preferably, the ball valve seat removal tool for nuclear power facilities is a left-right symmetrical structure.

[0018] The implementation of this utility model has the following beneficial effects:

[0019] The utility model relates to a ball valve seat removal tool for nuclear power facilities, which is used to remove the valve seat of the ball valve. On the ball valve seat removal tool for nuclear power facilities, by using an operating member with a first screw hole and a second screw hole with opposite screw threads, in conjunction with the arrangement of two holding components, the effect of applying force to both sides of the valve seat is achieved, thereby greatly improving the disassembly efficiency of the valve seat.

[0020] Furthermore, during the disassembly and assembly process, the pressure plate can evenly apply force to the valve seat, avoiding damage to the valve seat or sealing ring caused by excessive local force, and extending the service life of the components. In addition, the operator only needs to rotate the operating part to achieve the simultaneous movement of the two pressure plates, which reduces the difficulty of operation and greatly improves the efficiency of disassembly and assembly.

[0021] In addition, since the extension of the screw rod is adjustable, the utility model can be adjusted according to different ball valve sizes, thereby enhancing the versatility and adaptability of the tool. In addition, the overall design of the utility model is compact and reasonable, which is not only convenient to carry and store, but also convenient to use in a working environment with limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0023] Figure 1 It is a schematic diagram of the structure of a ball valve seat removal tool for nuclear power facilities in some embodiments of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of a ball valve seat removal tool for nuclear power facilities in some embodiments of the utility model in a certain state;

[0025] Figure 3 From another perspective Figure 1 A schematic diagram of the structure of a ball valve seat removal tool for a nuclear power facility is shown;

[0026] Figure 4 It is a schematic diagram of the internal structure of a ball valve seat removal tool for nuclear power facilities in some embodiments of the utility model;

[0027] Figure 5 It is a schematic diagram of the structure of a ball valve seat removal tool for nuclear power facilities in some embodiments of the utility model when it is actually used;

[0028] Figure 6 It is another structural schematic diagram of the ball valve seat removal tool for nuclear power facilities in some embodiments of the utility model during actual use. DETAILED DESCRIPTION

[0029] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] Figures 1 to 4 The utility model shows a nuclear power facility ball valve seat removal tool 10 in some embodiments; please refer to Figure 5 and Figure 6 The ball valve seat removal tool 10 for nuclear power facilities is used to remove the valve seat 40 of the ball valve 20. Specifically, the ball valve 20 includes a valve seat 40, which is arranged in the loop 30. The ball valve seat removal tool 10 for nuclear power facilities of the utility model can be placed in the loop 30, and the valve seat 40 in the loop 30 can be removed by the ball valve seat removal tool 10 for nuclear power facilities. It should be noted that the valve seat 40 is generally used to support the other parts of the ball valve (such as the main valve core, etc.).

[0034] like Figures 1 to 6 As shown, a ball valve seat removal tool 10 for a nuclear power facility includes an operating member 1 and two pressing assemblies 2 , wherein the two pressing assemblies 2 are symmetrically arranged on the operating member 1 .

[0035] It should be noted that, by operating the operating member 1, the operator can correspondingly drive the two holding components 2 to move relative to the operating member 1. The two holding components 2 are used to respectively abut against two parts of the valve seat 40, and each holding component 2 independently drives one part of the valve seat 40 to move, thereby achieving the purpose of disassembling and assembling the valve seat 40.

[0036] It should also be noted that the two parts of the valve seat 40 are not directly connected, and the two parts of the valve seat 40 support the main valve core of the ball valve from two different positions.

[0037] like Figure 1 and Figure 2 As shown, the operating member 1 is provided with a first screw hole 111 and a second screw hole 112, the first screw hole 111 and the second screw hole 112 are located in the same straight line direction, and the first screw hole 111 and the second screw hole 112 are opposite to each other, a left-handed thread is arranged in the first screw hole 111, and a right-handed thread is arranged in the second screw hole 112. Each pressing assembly 2 includes a screw rod 21, a movable connecting member 22 and a pressing plate 23, one of the screw rods 21 is screwed to the first screw hole 111, and the other screw rod 21 is screwed to the second screw hole 112, the two screw rods 21 are connected to the two movable connecting members 22 one by one, and the two movable connecting members 22 are connected to the two pressing plates 23 one by one, and each pressing plate 23 can move relative to the screw rod 21 through the movable connecting member 22. The two pressing plates 23 are used to abut against the valve seat 40 . When the operating member 1 rotates, the two screw rods 21 extend or retract into the operating member 1 together, so that the two pressing plates 23 respectively press the valve seat 40 to move so as to disassemble or assemble the valve seat 40 .

[0038] It can be understood that the first screw hole 111 and the second screw hole 112 are located on the same axis and in opposite directions, the first screw hole 111 is provided with a left-handed thread, and the second screw hole 112 is provided with a right-handed thread. Such a design enables the screw rod 21 screwed in the first screw hole 111 to move in one direction when the operating member 1 rotates, while the screw rod 21 screwed in the second screw hole 112 moves in the opposite direction.

[0039] One end of one of the screw rods 21 is screwed into the first screw hole 111 of the operating member 1, and one end of the other screw rod 21 is screwed into the second screw hole 112. The movable connecting member 22 is used to connect the screw rod 21 and the pressure plate 23, allowing the pressure plate 23 to have a certain range of motion relative to the screw rod 21. The pressure plate 23 is connected to the screw rod 21 through the movable connecting member 22, and is used to abut against the valve seat 40.

[0040] It should be noted that if Figure 6As shown, when the valve seat 40 needs to be assembled, the valve seat 40 to be assembled is placed in the corresponding installation position in advance, and the valve seat 40 is not fully installed at this time. The positions of the two screw rods 21 are adjusted so that each pressure plate 23 can be correspondingly supported on the valve seat 40. The two screw rods 21 can be extended or retracted into the operating member 1 by rotating the operating member 1, so that the two pressure plates 23 respectively drive different parts of the valve seat 40 to be installed in place, and the installation of the valve seat 40 is completed.

[0041] Correspondingly, such as Figure 5 As shown, if the valve seat 40 needs to be disassembled, the position of the screw rod 21 is adjusted so that each pressing plate 23 is correspondingly pressed against the other side of the valve seat 40 (the other side opposite to the pressing position during installation). The operating member 1 is rotated so that the two screw rods 21 are extended or retracted into the operating member 1 together, so that each pressing plate 23 can correspondingly drive a part of the valve seat 40 to move, thereby removing the valve seat 40 from the installation position, and completing the disassembly of the valve seat 40.

[0042] It should also be noted that different types of valve seats 40 are disassembled in different moving directions, that is, when the valve seat 40 is moved in different directions to complete disassembly or installation due to different specific conditions such as the installation method and installation position of the valve seat 40 itself, the utility model can adjust the pressure plate 23 to abut against different sides of the valve seat through the screw rod 21, and then drive the valve seat 40 to move in the required direction through the rotation of the operating member 1. In this way, even if the disassembly and installation directions of the valve seat are different, the utility model can still disassemble and install it, and its universality is very strong.

[0043] like Figure 4 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the utility model, a first connecting hole 11 and a second connecting hole 12 are provided on the operating member 1, and a left-handed thread is provided on at least a portion of the hole wall in the first connecting hole 11 to form a first screw hole 111, and a right-handed thread is provided on at least a portion of the hole wall of the second connecting hole 12 to form a second screw hole 112.

[0044] It can be understood that the first connecting hole 11 and the second connecting hole 12 are located on the same axis and in opposite directions. A left-handed thread is provided on at least part of the hole wall in the first connecting hole 11, and a right-handed thread is provided on at least part of the hole wall in the second connecting hole 12. Such a design enables the screw rod 21 screwed in the first connecting hole 11 to move in one direction when the operating member 1 rotates, while the screw rod 21 screwed in the second connecting hole 12 to move in the opposite direction.

[0045] It should be noted that, in a further embodiment, a left-handed thread may be provided only at a part of the first connection hole 11, or the entire inner wall of the first connection hole 11 may be provided with a left-handed thread. Similarly, a right-handed thread may be provided only at a part of the second connection hole 12, or the entire inner wall.

[0046] like Figure 4 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the utility model, the ball valve seat removal tool 10 for nuclear power facilities also includes a first nut 3 and a second nut 4, the first nut 3 is arranged on the first connecting hole 11, and the second nut 4 is arranged on the second connecting hole 12, the first nut 3 is provided with a left-handed thread, and the second nut 4 is provided with a right-handed thread.

[0047] It can be understood that the first nut 3 and the second nut 4 are both configured to be fixedly connected to the operating member 1, thereby ensuring that the screw rod 21 can be stably connected during actual operation and ensuring the normal use of the utility model.

[0048] In a further embodiment, the first nut 3 and the second nut 4 can be made of different materials and sizes according to actual needs to meet specific application requirements.

[0049] like Figure 3 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the present invention, the movable connecting member 22 includes a pin 221 , the pin 221 passes through the end of the screw rod 21 , and the pin 221 is arranged on the pressure plate 23 .

[0050] It can be understood that the pin 221 is used to connect the screw rod 21 and the pressure plate 23, allowing the pressure plate 23 to have a certain range of motion relative to the screw rod 21, but correspondingly, the setting direction of the pin 221 (length extension direction) is perpendicular to the length extension direction of the screw rod 21, so as to avoid the screw rod 21 rotating with the pin 221 as the rotation axis when the operating member 1 rotates, that is, to ensure that the rotation of the operating member 1 can be converted into movement of the screw rod 21 rather than rotation, thereby ensuring the normal disassembly and installation.

[0051] like Figure 3 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the present invention, each pressing plate 23 has a mounting hole 232 at the center, and each pin shaft 221 is disposed in each mounting hole 232 in a one-to-one correspondence.

[0052] It can be understood that the mounting hole 232 provides a certain movable space for the end of the screw rod 21 to avoid position interference with the end of the screw rod 21 when the pressure plate 23 rotates through the pin shaft 221.

[0053] like Figure 3As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the present invention, a movable avoidance groove 233 is provided at the opening of the mounting hole 232 .

[0054] It can be understood that through the contents of this embodiment, the movable avoidance groove 233 can provide the pressure plate 23 with a larger space for movement relative to the screw rod 21, thereby facilitating the operator to adjust the position of the tool in the loop 30, etc., thereby improving the convenience of use of the utility model.

[0055] like Figure 3 and Figure 4 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the present invention, the pressing plate 23 is provided with a chamfer 231 at the outer edge.

[0056] It can be understood that the chamfer 231 is used to guide the pressure plate 23 and the valve seat 40 to be correctly aligned and abutted. When the pressure plate 23 is driven by the screw rod 21 and abuts against the valve seat 40, the chamfer 231 will guide the pressure plate 23 and the valve seat 40 to be correctly aligned, so that the pressure plate 23 and the valve seat 40 are in full contact, ensuring that the pressure plate 23 can evenly drive various positions of the valve seat 40 to move together, thereby preventing the valve seat 40 from being damaged or causing the valve seat 40 to scratch other parts due to improper disassembly and assembly posture of the valve seat 40.

[0057] like Figures 1 to 6 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the present invention, the operating member 1 is columnar as a whole, and the first screw hole 111 and the second screw hole 112 are respectively located at two ends of the operating member 1.

[0058] It is understandable that the columnar design makes the operating member 1 more compact, easy to carry and use in a small space. Of course, the operating member 1 can be configured as a cylinder, a square column or a column of other shapes, which can be flexibly adjusted according to actual operation conditions, application scenarios and design requirements.

[0059] In some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the utility model, a torque tool connecting groove is provided on the peripheral side wall of the operating member 1, and the torque tool connecting groove is used to connect with the torque tool, so that the torque tool can drive the operating member 1 to rotate through the torque tool connecting groove.

[0060] It can be understood that, through the cooperation between the torque tool and the torque tool connecting groove, the torque tool can drive the operating member 1 to rotate. By providing the torque tool connecting groove, the operator can use the torque tool to easily rotate the operating member 1, simplifying the operation steps.

[0061] It should be noted that the torque tool can be configured as an open-end wrench or other tools in the prior art that can apply torque.

[0062] like Figures 1 to 6 As shown, in some embodiments of the ball valve seat removal tool 10 for nuclear power facilities of the present invention, the ball valve seat removal tool 10 for nuclear power facilities is a left-right symmetrical structure.

[0063] It can be understood that the symmetrical structure helps to maintain the balance of the utility model during operation, ensures uniform force application, and reduces the possibility of tool deflection during operation.

[0064] The implementation of this utility model has the following beneficial effects:

[0065] The utility model relates to a ball valve seat removal tool for nuclear power facilities, which is used to remove the valve seat of the ball valve. On the ball valve seat removal tool for nuclear power facilities, by using an operating member with a first screw hole and a second screw hole with opposite screw threads, in conjunction with the arrangement of two holding components, the effect of applying force to both sides of the valve seat is achieved, thereby greatly improving the disassembly efficiency of the valve seat.

[0066] Furthermore, during the disassembly and assembly process, the pressure plate can evenly apply force to the valve seat, avoiding damage to the valve seat or sealing ring caused by excessive local force, and extending the service life of the components. In addition, the operator only needs to rotate the operating part to achieve the simultaneous movement of the two pressure plates, which reduces the difficulty of operation and greatly improves the efficiency of disassembly and assembly.

[0067] In addition, since the extension of the screw rod is adjustable, the utility model can be adjusted according to different ball valve sizes, thereby enhancing the versatility and adaptability of the tool. In addition, the overall design of the utility model is compact and reasonable, which is not only convenient to carry and store, but also convenient to use in a working environment with limited space.

[0068] The scheme of the utility model has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the specification are not necessarily required for the utility model. In addition, it can be understood that the steps in the method of the embodiment of the utility model can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the utility model can be merged, divided and deleted according to actual needs.

[0069] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A ball valve seat removal tool for nuclear power facilities, characterized in that: include: An operating member (1), wherein the operating member (1) is provided with a first screw hole (111) and a second screw hole (112), wherein the first screw hole (111) and the second screw hole (112) are located in the same straight line direction, and the first screw hole (111) and the second screw hole (112) are opposite to each other, and the first screw hole (111) is provided with a left-handed thread, and the second screw hole (112) is provided with a right-handed thread; and Two pressing assemblies (2), each of the pressing assemblies (2) comprises a screw rod (21), a movable connecting piece (22) and a pressing plate (23), one of the screw rods (21) is screwed to the first screw hole (111), the other screw rod (21) is screwed to the second screw hole (112), the two screw rods (21) are connected to the two movable connecting pieces (22) one by one, the two movable connecting pieces (22) are connected to the two pressing plates (23) one by one, and each pressing plate (23) can move relative to the screw rod (21) through the movable connecting piece (22); The two pressing plates (23) are both used to abut against the valve seat, and when the operating member (1) rotates, the two screw rods (21) extend or retract into the operating member (1) together, so that the two pressing plates (23) respectively support the valve seat to move so as to disassemble or assemble the valve seat.

2. The ball valve seat removal tool for nuclear power facilities according to claim 1, characterized in that: The operating member (1) is provided with a first connecting hole (11) and a second connecting hole (12); at least a portion of the hole wall of the first connecting hole (11) is provided with the left-handed thread to form the first screw hole (111); and at least a portion of the hole wall of the second connecting hole (12) is provided with the right-handed thread to form the second screw hole (112).

3. The ball valve seat removal tool for nuclear power facilities according to claim 2, characterized in that: The ball valve seat removal tool for a nuclear power facility further comprises a first nut (3) and a second nut (4), wherein the first nut (3) is arranged on the first connecting hole (11), and the second nut (4) is arranged on the second connecting hole (12), the first nut (3) is provided with the left-handed thread, and the second nut (4) is provided with the right-handed thread.

4. The ball valve seat removal tool for nuclear power facilities according to claim 1, characterized in that: The movable connecting member (22) comprises a pin shaft (221), the pin shaft (221) passes through the end of the screw rod (21), and the pin shaft (221) is arranged on the pressing plate (23).

5. The ball valve seat removal tool for nuclear power facilities according to claim 4, characterized in that: Each of the pressing plates (23) is provided with a mounting hole (232) at a central position, and each of the pin shafts (221) is arranged in a one-to-one correspondence in each of the mounting holes (232).

6. The ball valve seat removal tool for nuclear power facilities according to claim 5, characterized in that: The opening of the mounting hole (232) is provided with a movable avoidance groove (233).

7. The ball valve seat removal tool for nuclear power facilities according to claim 1, characterized in that: The pressing plate (23) is provided with a chamfer (231) at the outer edge.

8. The ball valve seat removal tool for nuclear power facilities according to claim 1, characterized in that: The operating member (1) is columnar in shape as a whole, and the first screw hole (111) and the second screw hole (112) are respectively located at two ends of the operating member (1).

9. The ball valve seat removal tool for nuclear power facilities according to claim 1 or 8, characterized in that: The operating member (1) is provided with a torque tool connecting groove on the peripheral side wall, and the torque tool connecting groove is used to be connected to a torque tool, so that the torque tool can drive the operating member (1) to rotate through the torque tool connecting groove.

10. The ball valve seat removal tool for nuclear power facilities according to claim 1, characterized in that: The ball valve seat removal tool for nuclear power facilities has a left-right symmetrical structure.

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