Auxiliary tool for assembling bypass valve of steam turbine of nuclear power station

Abstract

The utility model discloses an auxiliary tool for assembling a bypass valve of a nuclear power station steam turbine, and relates to the technical field of mechanical assembly. The device comprises an auxiliary frame. The auxiliary frame is pushed to be matched with the moving assembly to move to the position over the valve deck, the driving assembly is started to drive the lifting assembly to move downwards, the clamping assembly is started to clamp the valve deck, the driving assembly is started again to drive the lifting assembly to move upwards, and the lifting assembly is matched with the clamping assembly to drive the valve deck to move upwards. The auxiliary frame is pushed to drive the valve cover to move to the top end of the valve body, the positioning assembly is started to position the valve body, the driving assembly is started to drive the lifting assembly to move downwards, and the lifting assembly is matched with the clamping assembly to drive the valve cover to be connected with a valve rod in the valve body in a sleeving mode. The installation between the valve cover and the valve body and the valve rod is completed, shaking in the installation process is avoided, and assembly between the valve rod and the valve cover is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical assembly, and in particular relates to an auxiliary tool for assembling a nuclear power plant steam turbine bypass valve. Background Art

[0002] The turbine bypass system is set up to meet the needs of unit start-up and shutdown and accident handling. The system can provide an artificial load for a circuit. The main function of the turbine bypass system is to discharge the excess steam generated in the steam generator to avoid the action of the steam generator safety valve when the steam turbine generator suddenly reduces load or the steam turbine trips due to fire.

[0003] In the prior art, after searching, Chinese patent number CN210282160U discloses an auxiliary tool for assembling a nuclear power plant turbine bypass valve; it includes a valve stem guide cone, a positioning detection device, a valve stem positioning disc, and an embedded circular magnet; the valve stem guide cone is installed at the end of the valve stem, and the positioning detection device is in a groove at the end of the valve cover bushing; the valve stem positioning disc is installed on the valve core assembly, and the embedded circular magnet is installed on the valve stem positioning disc.

[0004] When assembling the bypass valve, it is necessary to assemble the valve core and the valve cover, but a valve stem is generally provided at the top of the valve core, and the valve stem must be installed through the valve cover. Since the gap between the valve stem and the valve cover is small, it is necessary to position it when assembling it to facilitate the assembly between the valve stem and the valve cover. However, the existing auxiliary tools have poor stability, which makes it easy to shake during the assembly process, which is not conducive to the assembly between the valve stem and the valve cover.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes an auxiliary tool for assembling a nuclear power plant steam turbine bypass valve to overcome the above technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is an auxiliary tool for assembling a bypass valve of a steam turbine in a nuclear power plant, comprising an auxiliary frame, a moving component is connected to the internal thread of the auxiliary frame, a positioning component is fixedly installed on one side of the auxiliary frame, a valve body is arranged on one side of the positioning component, a valve stem is arranged inside the valve body, a driving component is fixedly installed on the top of the auxiliary frame, a lifting component is rotatably arranged inside the auxiliary frame, one end of the lifting component is fixedly connected to the output end of the driving component, a clamping component is fixedly installed inside the lifting component, and a valve cover is clamped and fixed on one side of the clamping component.

[0009] Furthermore, the moving assembly includes a screw rod, a threaded surface of the screw rod is connected to the internal thread of the auxiliary frame, a knob is fixedly connected to the top end of the screw rod, and a universal wheel is fixedly installed on the bottom end of the screw rod.

[0010] Furthermore, the positioning assembly includes a first electric push rod, a positioning block is fixedly installed on the telescopic end of the first electric push rod, one side of the positioning block is in contact with the outer surface of the valve body, one side of the positioning block is fixedly connected to a positioning rod, and the outer surface of the positioning rod is slidably arranged inside the auxiliary frame.

[0011] Furthermore, the driving assembly includes a mounting frame, the inner side of the mounting frame is fixedly mounted to the top end of the auxiliary frame, and the top end of the mounting frame is fixedly mounted with a motor.

[0012] Furthermore, the lifting assembly includes a threaded rod, the outer surface of the threaded rod is rotatably arranged inside the auxiliary frame, the top of the threaded rod is fixedly connected to the output end of the motor, the threaded surface of the threaded rod is threadedly connected to the lifting frame, and a first limit rod is slidably arranged inside the lifting frame, and both ends of the first limit rod are fixedly connected to the inner side of the auxiliary frame.

[0013] Furthermore, the clamping assembly includes a second electric push rod, one side of the second electric push rod is fixedly installed on one side of the lifting frame, the telescopic end of the second electric push rod is fixedly installed with a mounting block, one side of the mounting block is fixedly installed with a clamping block, and one side of the clamping block is fixedly connected with an anti-slip pad.

[0014] Furthermore, a second limiting rod is fixedly connected to the interior of the lifting frame, and an outer surface of the second limiting rod is slidably arranged with the interior of the mounting block.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model pushes the auxiliary frame to cooperate with the moving assembly to move it to the top of the valve cover, and then starts the driving assembly to drive the lifting assembly to move downward, the lifting assembly drives the clamping assembly to move to both sides of the valve cover, and the outer surface of the valve cover is supported by starting the clamping assembly, and then the driving assembly is started again to drive the lifting assembly to move upward, and then it cooperates with the clamping assembly to drive the valve cover to move upward, and then the auxiliary frame is pushed to cooperate with the moving assembly to move to the top of the valve body, and the positioning assembly is started to abut the outer surface of the valve body to complete the positioning, so that it can ensure that the valve cover and the valve body maintain a center setting, start the driving assembly to drive the lifting assembly to move downward, the lifting assembly cooperates with the clamping assembly to drive the valve cover to be sleeved with the valve stem inside the valve body, and then in the process of the lifting assembly driving the clamping assembly to continue to move downward, the installation between the valve cover, the valve body and the valve stem is completed, so as to avoid shaking during the installation process and facilitate the assembly between the valve stem and the valve cover.

[0017] 2. The utility model drives the screw rod to rotate by turning the knob, and the screw rod cooperates with the thread to drive the universal wheel to move downward and contact the ground, so that the auxiliary frame is separated from the ground, and then pushes the auxiliary frame to move the top of the valve cover, and then starts the motor to drive the threaded rod to rotate, and the threaded rod drives the lifting frame to move downward, so that it can drive the second limit rod to move, so that it cooperates with the mounting block to drive the clamping block to move to both sides of the valve cover, and then starts the second electric push rod to drive the mounting block to move, and the mounting block drives the clamping block to move, so that it clamps and fixes the valve cover, and then starts the motor again to drive the threaded rod to rotate in the opposite direction, so that it drives the lifting frame to move upward, and the lifting frame cooperates with the second limit rod to The auxiliary frame is pushed to the top of the valve body, and the positioning block is driven to move by starting the first electric push rod to make it contact with the outer surface of the valve body, so that the positioning block is positioned according to the diameter of the valve body to ensure that the center of the valve body is consistent with the center of the auxiliary frame. Then the motor is started again to cooperate with the threaded rod to drive the lifting frame to move downward, so that it cooperates with the second limit rod to drive the mounting block and the clamping block to move, and then the clamping block can drive the valve cover to move downward, completing the installation between the valve cover, the valve body and the valve stem, avoiding shaking during the installation process, and facilitating the assembly between the valve stem and the valve cover.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model in the first motion state;

[0021] Figure 2 It is a structural schematic diagram of the utility model from a right side viewing angle;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model in the second motion state;

[0023] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the local structure at point A;

[0024] Figure 5 It is a schematic diagram of the structure of the utility model from a rear-view perspective;

[0025] Figure 6 For the utility model Figure 5 An enlarged schematic diagram of the local structure at point B.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Auxiliary frame; 2. Moving assembly; 201. Screw rod; 202. Knob; 203. Universal wheel; 3. Positioning assembly; 301. First electric push rod; 302. Positioning block; 303. Positioning rod; 4. Valve body; 5. Valve stem; 6. Driving assembly; 601. Mounting frame; 602. Motor; 7. Lifting assembly; 701. Threaded rod; 702. Lifting frame; 703. First limiting rod; 8. Clamping assembly; 801. Second electric push rod; 802. Mounting block; 803. Clamping block; 804. Anti-slip pad; 9. Valve cover; 10. Second limiting rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0030] See also Figure 1-Figure 6As shown, the utility model is an auxiliary tool for assembling a bypass valve of a nuclear power plant steam turbine, comprising an auxiliary frame 1, wherein the internal thread of the auxiliary frame 1 is connected with a moving component 2, a positioning component 3 is fixedly installed on one side of the auxiliary frame 1, a valve body 4 is arranged on one side of the positioning component 3, a valve stem 5 is arranged inside the valve body 4, a driving component 6 is fixedly installed on the top of the auxiliary frame 1, a lifting component 7 is rotatably arranged inside the auxiliary frame 1, one end of the lifting component 7 is fixedly connected to the output end of the driving component 6, a clamping component 8 is fixedly installed inside the lifting component 7, and a valve cover 9 is clamped and fixed on one side of the clamping component 8.

[0031] When in use, the moving component 2 is rotated to make it contact with the ground and drive the auxiliary frame 1 to leave the ground, thereby facilitating the movement of the auxiliary frame 1 and moving it to the top of the valve cover 9, and then the driving component 6 is started to drive the lifting component 7 fixedly connected to its output end to move downward. When the lifting component 7 moves, it can drive the clamping component 8 fixedly installed inside it to move, and then move it to both sides of the valve cover 9. When the height of the valve cover 9 is relatively high, it can be turned over so that the auxiliary frame 1 can be moved to its top, and then the valve cover 9 can be turned over. When the height of the valve cover 9 is relatively low, the auxiliary frame 1 is moved to its top, and then the valve cover 9 is lifted with the help of a tool, and then the outer surface of the valve cover 9 is supported by starting the clamping component 8, and then the driving component 6 is started again to drive the lifting component 7 to move upward, so that it cooperates with the clamping component 8 to drive The valve cover 9 moves upward, and then pushes the auxiliary frame 1 to cooperate with the moving component 2 to move, so that it moves to the top of the valve body 4, and then starts the positioning component 3 to abut the outer surface of the valve body 4. Since the positioning component 3 is provided with two groups and is synchronously arranged, when one group of positioning components 3 first contacts the outer surface of the valve body 4, it can drive the auxiliary frame 1 to cooperate with the moving component 2 to move under the condition of its continuous movement until the two groups of positioning components 3 are both in contact with the outer surface of the valve body 4 to complete the positioning, so that it can ensure that the valve cover 9 and the valve body 4 maintain a central setting, and then start the driving component 6 to drive the lifting component 7 to move downward, and the lifting component 7 cooperates with the clamping component 8 to drive the valve cover 9 to be socketed with the valve stem 5 inside the valve body 4, and then in the process of the lifting component 7 driving the clamping component 8 to continue to move downward, the installation between the valve cover 9 and the valve body 4 and the valve stem 5 is completed, which is more convenient.

[0032] The utility model pushes the auxiliary frame 1 to cooperate with the moving component 2 to move, so that it moves to the top of the valve cover 9, and then starts the driving component 6 to drive the lifting component 7 to move downward, and the lifting component 7 drives the clamping component 8 to move to both sides of the valve cover 9, and the outer surface of the valve cover 9 is supported by starting the clamping component 8, and then the driving component 6 is started again to drive the lifting component 7 to move upward, so that it cooperates with the clamping component 8 to drive the valve cover 9 to move upward, and then the auxiliary frame 1 is pushed to cooperate with the moving component 2 to move to the top of the valve body 4, and the positioning component 3 is started to abut the outer surface of the valve body 4 to complete the positioning, so that it can ensure that the valve cover 9 and the valve body 4 maintain a center setting, start the driving component 6 to drive the lifting component 7 to move downward, and the lifting component 7 cooperates with the clamping component 8 to drive the valve cover 9 to be sleeved with the valve stem 5 inside the valve body 4, and then in the process of the lifting component 7 driving the clamping component 8 to continue to move downward, the installation between the valve cover 9 and the valve body 4 and the valve stem 5 is completed, so as to avoid shaking during the installation process and facilitate the assembly between the valve stem 5 and the valve cover 9.

[0033] In one embodiment, for the above-mentioned moving component 2, the moving component 2 includes a screw rod 201, the threaded surface of the screw rod 201 is connected to the internal thread of the auxiliary frame 1, the top end of the screw rod 201 is fixedly connected with a knob 202, and the bottom end of the screw rod 201 is fixedly installed with a universal wheel 203.

[0034] By turning the knob 202, the screw rod 201 fixedly connected to its bottom end is driven to rotate. Since the threaded surface of the screw rod 201 is connected to the internal thread of the auxiliary frame 1, when the screw rod 201 rotates, it can drive the universal wheel 203 fixedly installed at its bottom end to move up and down. When the universal wheel 203 moves downward, it can make contact with the ground and make the auxiliary frame 1 leave the ground under continuous movement, thereby facilitating the movement of the auxiliary frame 1.

[0035] In one embodiment, for the above-mentioned positioning assembly 3, the positioning assembly 3 includes a first electric push rod 301, and a positioning block 302 is fixedly installed on the telescopic end of the first electric push rod 301, one side of the positioning block 302 is in contact with the outer surface of the valve body 4, and one side of the positioning block 302 is fixedly connected to a positioning rod 303, and the outer surface of the positioning rod 303 is slidably arranged inside the auxiliary frame 1.

[0036] Since there are two groups of positioning components 3 which are symmetrical and the two groups of positioning components 3 move synchronously, the first electric push rod 301 is started to drive the positioning block 302 fixedly installed at its telescopic end to move so that it contacts the outer surface of the valve body 4. Since the two groups of first electric push rods 301 are synchronously set, the telescopic distances of the two groups of first electric push rods 301 are the same when started. Therefore, when the positioning block 302 is positioned according to the diameter of the valve body 4, it can ensure that the center of the valve body 4 is consistent with the center of the auxiliary frame 1.

[0037] In one embodiment, for the above-mentioned driving assembly 6, the driving assembly 6 includes a mounting frame 601, the inner side of the mounting frame 601 is fixedly mounted to the top of the auxiliary frame 1, and the top of the mounting frame 601 is fixedly mounted with a motor 602.

[0038] The motor 602 is started to drive the lifting assembly 7 fixedly connected to its output end to move, thereby providing stable power for the lifting assembly 7.

[0039] In one embodiment, for the above-mentioned lifting component 7, the lifting component 7 includes a threaded rod 701, the outer surface of the threaded rod 701 is rotatably arranged inside the auxiliary frame 1, the top of the threaded rod 701 is fixedly connected to the output end of the motor 602, the threaded surface of the threaded rod 701 is threadedly connected to the lifting frame 702, and the lifting frame 702 is internally slidably arranged with a first limit rod 703, and both ends of the first limit rod 703 are fixedly connected to the inner side of the auxiliary frame 1.

[0040] By starting the motor 602, the threaded rod 701 fixedly connected to its output end is driven to rotate. When the threaded rod 701 rotates, it can drive the lifting frame 702 threadedly connected to its threaded surface to move. When the lifting frame 702 moves, it can slide on the outer surface of the first limit rod 703, thereby ensuring its stability during movement.

[0041] In one embodiment, for the above-mentioned clamping assembly 8, the clamping assembly 8 includes a second electric push rod 801, one side of the second electric push rod 801 is fixedly installed with a side of the lifting frame 702, the telescopic end of the second electric push rod 801 is fixedly installed with a mounting block 802, one side of the mounting block 802 is fixedly installed with a clamping block 803, and one side of the clamping block 803 is fixedly connected with an anti-slip pad 804.

[0042] By starting the second electric push rod 801, the mounting block 802 fixedly connected to its telescopic end is driven to move. When the mounting block 802 moves, it can drive the clamping block 803 fixedly installed on one side of it to move, so as to clamp and fix the valve cover 9. Since an anti-slip pad 804 is provided on one side of the clamping block 803, when the clamping block 803 drives the anti-slip pad 804 to clamp and fix the outer surface of the valve cover 9, the friction between it and the valve cover 9 can be increased, thereby further improving the stability of the valve cover 9.

[0043] In one embodiment, for the lifting frame 702 , a second limiting rod 10 is fixedly connected to the interior of the lifting frame 702 , and an outer surface of the second limiting rod 10 is slidably arranged with the interior of the mounting block 802 .

[0044] The outer surface of the second limiting rod 10 is slidably arranged with the interior of the mounting block 802, so that when the mounting block 802 moves, it can move along the direction of the second limiting rod 10, thereby making the mounting block 802 more stable during movement and increasing the bearing capacity of the mounting block 802.

[0045] Through the above technical solution, 1. By pushing the auxiliary frame 1 to cooperate with the moving component 2 to move, it moves to the top of the valve cover 9, and then start the driving component 6 to drive the lifting component 7 to move downward, and the lifting component 7 drives the clamping component 8 to move to both sides of the valve cover 9, and the outer surface of the valve cover 9 is supported by starting the clamping component 8, and then the driving component 6 is started again to drive the lifting component 7 to move upward, and then it cooperates with the clamping component 8 to drive the valve cover 9 to move upward, and then push the auxiliary frame 1 to cooperate with the moving component 2 to move to the top of the valve body 4, start the positioning component 3 to abut the outer surface of the valve body 4, and complete the positioning, so that it can ensure that the valve cover 9 and the valve body 4 maintain the center setting 1. Start the driving assembly 6 to drive the lifting assembly 7 to move downward. The lifting assembly 7 cooperates with the clamping assembly 8 to drive the valve cover 9 to be sleeved with the valve stem 5 inside the valve body 4. Then, during the process of the lifting assembly 7 driving the clamping assembly 8 to continue to move downward, the installation between the valve cover 9, the valve body 4 and the valve stem 5 is completed, so as to avoid shaking during the installation process and facilitate the assembly between the valve stem 5 and the valve cover 9; 2. Drive the screw rod 201 to rotate by turning the knob 202. The screw rod 201 cooperates with the thread to drive the universal wheel 203 to move downward and contact the ground, so that the auxiliary frame 1 is separated from the ground, thereby pushing the auxiliary frame 1 to move the top of the valve cover 9, and then start the motor 602 to drive the threaded rod 701 to rotate, and the screw rod 701 is driven to rotate. The threaded rod 701 drives the lifting frame 702 to move downward, so that it can drive the second limiting rod 10 to move, so that it cooperates with the mounting block 802 to drive the clamping block 803 to move to both sides of the valve cover 9, and then the second electric push rod 801 is started to drive the mounting block 802 to move, and the mounting block 802 drives the clamping block 803 to move, so that it clamps and fixes the valve cover 9, and then the motor 602 is started again to drive the threaded rod 701 to rotate in the opposite direction, so that it drives the lifting frame 702 to move upward, and the lifting frame 702 cooperates with the second limiting rod 10 to drive the mounting block 802 and the clamping block 803 to move, so that the clamping block 803 can drive the valve cover 9 to move upward, and then push the auxiliary frame 1 moves to the top of the valve body 4, and drives the positioning block 302 to move by starting the first electric push rod 301, so that it contacts the outer surface of the valve body 4, so that the positioning block 302 is positioned according to the diameter of the valve body 4, ensuring that the center of the valve body 4 is consistent with the center of the auxiliary frame 1, and then the motor 602 is started again to cooperate with the threaded rod 701 to drive the lifting frame 702 to move downward, so that it cooperates with the second limiting rod 10 to drive the installation block 802 and the clamping block 803 to move, and then the clamping block 803 can drive the valve cover 9 to move downward, completing the installation between the valve cover 9 and the valve body 4 and the valve stem 5, avoiding shaking during the installation process, and facilitating the assembly between the valve stem 5 and the valve cover 9.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An auxiliary tool for assembling a nuclear power plant steam turbine bypass valve, comprising an auxiliary frame (1), characterized in that: The auxiliary frame (1) is internally threadedly connected with a moving assembly (2); a positioning assembly (3) is fixedly installed on one side of the auxiliary frame (1); a valve body (4) is provided on one side of the positioning assembly (3); a valve stem (5) is provided inside the valve body (4); a driving assembly (6) is fixedly installed on the top of the auxiliary frame (1); a lifting assembly (7) is rotatably provided inside the auxiliary frame (1); one end of the lifting assembly (7) is fixedly connected to the output end of the driving assembly (6); a clamping assembly (8) is fixedly installed inside the lifting assembly (7); a valve cover (9) is clamped and fixed on one side of the clamping assembly (8).

2. The auxiliary tool for assembling a nuclear power plant steam turbine bypass valve according to claim 1, characterized in that: The moving assembly (2) comprises a screw rod (201), the threaded surface of the screw rod (201) being connected to the internal thread of the auxiliary frame (1), the top end of the screw rod (201) being fixedly connected to a knob (202), and the bottom end of the screw rod (201) being fixedly mounted with a universal wheel (203).

3. The auxiliary tool for assembling a nuclear power plant steam turbine bypass valve according to claim 1, characterized in that: The positioning assembly (3) comprises a first electric push rod (301), a positioning block (302) being fixedly mounted on the telescopic end of the first electric push rod (301), one side of the positioning block (302) being in contact with the outer surface of the valve body (4), one side of the positioning block (302) being fixedly connected to a positioning rod (303), the outer surface of the positioning rod (303) being slidably arranged inside the auxiliary frame (1).

4. The auxiliary tool for assembling a nuclear power plant steam turbine bypass valve according to claim 1, characterized in that: The driving assembly (6) comprises a mounting frame (601), the inner side of the mounting frame (601) is fixedly mounted to the top end of the auxiliary frame (1), and a motor (602) is fixedly mounted on the top end of the mounting frame (601).

5. The auxiliary tool for assembling a nuclear power plant steam turbine bypass valve according to claim 4, characterized in that: The lifting assembly (7) comprises a threaded rod (701), the outer surface of the threaded rod (701) is rotatably arranged inside the auxiliary frame (1), the top end of the threaded rod (701) is fixedly connected to the output end of the motor (602), the threaded surface of the threaded rod (701) is threadedly connected to the lifting frame (702), and a first limiting rod (703) is slidably arranged inside the lifting frame (702), and both ends of the first limiting rod (703) are fixedly connected to the inner side of the auxiliary frame (1).

6. The auxiliary tool for assembling a nuclear power plant steam turbine bypass valve according to claim 5, characterized in that: The clamping assembly (8) comprises a second electric push rod (801), one side of the second electric push rod (801) is fixedly mounted on one side of the lifting frame (702), a mounting block (802) is fixedly mounted on the telescopic end of the second electric push rod (801), a clamping block (803) is fixedly mounted on one side of the mounting block (802), and an anti-slip pad (804) is fixedly connected to one side of the clamping block (803).

7. The auxiliary tool for assembling a nuclear power plant steam turbine bypass valve according to claim 6, characterized in that: A second limiting rod (10) is fixedly connected to the interior of the lifting frame (702), and an outer surface of the second limiting rod (10) is slidably arranged with the interior of the mounting block (802).

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