Nuclear power plant finger sleeve manual straightening device and nuclear power plant finger sleeve manual straightening method

Abstract

The invention discloses a nuclear power plant finger sleeve manual straightening device and a nuclear power plant finger sleeve manual straightening method. The nuclear power plant finger sleeve manual straightening device comprises a support, and the support is provided with a first clamping assembly and a second clamping assembly; the straightening mechanism comprises a first mounting seat and a second mounting seat, a first handle is arranged on the first mounting seat, and a second handle is arranged on the second mounting seat; a plurality of first rollers are arranged on the first mounting seat, a plurality of second rollers are arranged on the second mounting seat, and a straightening channel allowing a tube body of a nuclear power plant finger sleeve to penetrate through is formed between the first rollers and the second rollers; when the straightening mechanism moves back and forth in the length direction of the support, the first roller and the second roller straighten the pipe body of the nuclear power plant finger sleeve. By applying the device, only two workers are needed, the straightening operation of a single bent and damaged finger sleeve of the nuclear power plant only needs two hours, the working efficiency can be effectively improved, the irradiation dose borne by the workers is effectively reduced, and the cost is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of nuclear power technology, and in particular to a manual straightening device and method for nuclear power plant finger sleeves. Background Technology

[0002] During nuclear power plant overhauls, finger sleeves need to be inserted and removed from the R141 / R181 plant (hereinafter referred to as the RIC room). During the insertion and removal of finger sleeves, the load is large (15~25kg) after the sealing nut is loosened. It requires 6~8 people to take turns inserting and removing the finger sleeves. Moreover, when inserting the finger sleeves, the concentricity cannot be guaranteed manually, which leads to occasional bending and damage. The finger sleeves can only be replaced. The replacement time is long, the radiation dose is large, the personnel input is large, and it affects other overhaul work, resulting in very high costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a manual straightening device and a manual straightening method for nuclear power plant finger sleeves, addressing the shortcomings of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is: constructing a manual straightening device for nuclear power plant finger sleeves, comprising: The bracket is provided with a first clamping component and a second clamping component. The first clamping component is used to clamp the slot of the sealing component of the nuclear power plant finger sleeve. The second clamping component is arranged adjacent to the first clamping component and is used to clamp the part of the tube body of the nuclear power plant finger sleeve close to the sealing component. A straightening mechanism is movably mounted on the support along its length. The straightening mechanism includes a first mounting base and a second mounting base connected to each other. The first mounting base has a first handle, and the second mounting base has a second handle. The length directions of the first and second handles are perpendicular to the length direction of the support. The length directions of the first and second mounting bases are parallel to the length direction of the support. The first mounting base has a plurality of first rollers spaced apart along its length. The second mounting base has a plurality of second rollers spaced apart along its length. A straightening channel is formed between the first and second rollers for the tube body of the nuclear power plant finger sleeve to pass through. When the straightening mechanism moves back and forth along the length of the support, a plurality of first rollers and a plurality of second rollers straighten the tube body of the nuclear power plant finger sleeve.

[0005] In some embodiments, the first mounting base is provided with a plurality of upward-facing limiting grooves, and the plurality of limiting grooves are spaced apart along the length direction of the first mounting base; the straightening mechanism further includes a cover plate, which is detachably mounted on the upper surface of the first mounting base; the cover plate covers the openings of all the limiting grooves; The alignment mechanism also includes an adjusting block and an adjusting component; The adjusting block is installed in the limiting groove, the shaft of the first roller is connected to the adjusting block, and the adjusting member passes through the cover plate and is connected to the adjusting block to adjust the position of the adjusting block, thereby adjusting the distance between the first roller and the second roller.

[0006] In some embodiments, the adjusting member includes an adjusting bolt, the cover plate is provided with a positioning hole, and the threaded section of the adjusting bolt passes through the positioning hole; the portion of the adjusting bolt located on the cover plate is provided with a locking nut, and a washer is provided between the locking nut and the upper surface of the cover plate.

[0007] In some embodiments, the cover plate is connected to the first mounting base by fasteners; The first mounting base and the second mounting base are connected by a fastener.

[0008] In some embodiments, the bracket is provided with a guide rail that extends along the length of the bracket, and the first mounting base and / or the second mounting base are movably mounted on the guide rail by a slider.

[0009] In some embodiments, the first clamping assembly includes a first clamping block, a second clamping block, a rotating rod, and a locking bolt. The first end of the first clamping block is connected to the first bracket, and a positioning post is provided on the first clamping block. The first end of the second clamping block is rotatably connected to the positioning post. The second end of the first clamping block is provided with a first opening groove, the second end of the second clamping block is provided with a second opening groove, the first end of the rotating rod is rotatably installed in the first opening groove, the second end of the rotating rod is provided with a threaded groove, and the threaded section of the locking bolt is installed in the threaded groove. The first clamping assembly has a locked state and an unlocked state. When the first clamping assembly is in the locked state, the second end of the rotating rod is located in the second opening groove, and the locking bolt is located on the side opposite to the first clamping block of the second clamping block. The locking bolt is fastened to the threaded groove to lock the first clamping block and the second clamping block, thereby clamping the slot of the sealing assembly of the nuclear power plant finger sleeve. When the first clamping assembly is in the unlocked state, the locking bolt is loosened, the rotating rod can rotate out of the second opening slot, the second clamping block rotates around the positioning post, and then the slot of the sealing assembly of the nuclear power plant finger sleeve is released.

[0010] In some embodiments, the second clamping assembly includes a third clamping block, a fourth clamping block, and a locking screw. The first end of the third clamping block is connected to the bracket, the second end of the third clamping block is provided with a third opening groove, the middle part of the third clamping block is provided with a positioning block, the first end of the fourth clamping block is rotatably connected to the positioning block, the second end of the fourth clamping block is provided with a screw hole, and the locking screw is used to pass through the screw hole to lock the third clamping block and the fourth clamping block. The second clamping assembly has a locked state and an unlocked state. When the second clamping assembly is in the locked state, the screw hole and the third opening groove are opposite to each other. The threaded section of the locking screw passes through the screw hole, and the head of the locking screw abuts against the lower surface of the third opening groove to lock the third clamping block and the fourth clamping block, so that the second clamping assembly clamps the part of the nuclear power plant finger sleeve tube near the sealing assembly. When the second clamping assembly is in the unlocked state, the locking screw rotates, causing the head of the locking screw to move away from the lower surface of the third opening groove, and the fourth clamping block rotates, so that the second clamping assembly releases the part of the nuclear power plant finger sleeve tube that is close to the sealing assembly.

[0011] In some embodiments, the first clamping component is provided at the first end of the support along its length, and the limiting pad is provided at the second end of the support along its length.

[0012] The present invention also provides a method for manually straightening finger sleeves in nuclear power plants, applicable to the manual straightening device for finger sleeves in nuclear power plants in any of the above embodiments. The method for manually straightening finger sleeves in nuclear power plants includes the following steps: S10: The first clamping component clamps the groove of the sealing component of the nuclear power plant finger sleeve, and the second clamping component clamps the part of the tube body of the nuclear power plant finger sleeve close to the sealing component. S20: Holding the first handle and the second handle, push the straightening mechanism back and forth along the length of the support, so that the first roller and the second roller straighten the tube body of the nuclear power plant finger sleeve; S30: Loosen the first clamping component from the slot of the sealing component of the nuclear power plant finger sleeve, and then loosen the second clamping component from the part of the tube body of the nuclear power plant finger sleeve close to the sealing component; adjust the position of the first clamping component around the slot of the sealing component of the nuclear power plant finger sleeve multiple times, and then repeat steps S10 and S20.

[0013] In some embodiments, the manual straightening method for nuclear power plant finger sleeves further includes: S40: Use a testing device to check whether the straightening of the nuclear power plant's finger sleeve meets the requirements. If it does, the straightening operation of the nuclear power plant's finger sleeve is terminated.

[0014] The implementation of this invention has the following beneficial effects: by using this manual straightening device for nuclear power plant finger sleeves, only 2 workers are needed to straighten bent nuclear power plant finger sleeves without affecting other major overhaul work. The straightening operation of a single bent and damaged nuclear power plant finger sleeve only takes 2 hours, which can effectively improve work efficiency, effectively reduce the radiation dose received by workers and effectively reduce costs. Attached Figure Description

[0015] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figures 1 to 5 This is a schematic diagram illustrating the application of the manual straightening device for nuclear power plant finger sleeves in some embodiments of the present invention; Figure 6 This is a schematic diagram of the structure of a manual straightening device for nuclear power plant finger sleeves in some embodiments of the present invention; Figure 7 This is one of the partial structural schematic diagrams of the manual straightening device for nuclear power plant finger sleeves in some embodiments of the present invention; Figure 8 This is a partial structural schematic diagram of the manual straightening device for nuclear power plant finger sleeves in some embodiments of the present invention; Figure 9 This is a schematic diagram illustrating the application of the detection device in some embodiments of the present invention. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0017] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0018] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0019] See Figures 1 to 8This invention discloses a manual straightening device for nuclear power plant finger sleeves, which can straighten and repair bent and damaged finger sleeves 100 during insertion, solving the problem of replacing damaged finger sleeves with new ones. This effectively improves work efficiency and reduces labor and material costs. Using this manual straightening device, only two workers are needed to straighten bent finger sleeves 100 without affecting other major overhaul work. Straightening a single bent and damaged finger sleeve 100 takes only 2 hours, effectively improving work efficiency, reducing radiation dose to workers, and lowering costs. The total weight of the manual straightening device is less than 5 kg, facilitating manual operation and transportation. Furthermore, the device has a relatively compact structure, making it suitable for operations in confined spaces such as RIC rooms.

[0020] See Figures 1 to 8 The manual straightening device for the nuclear power plant's finger sleeve includes a support 10, a first clamping assembly 20, a second clamping assembly 30, and a straightening mechanism 40.

[0021] The bracket 10 is generally rectangular plate-shaped. It includes a first clamping assembly 20 and a second clamping assembly 30. The first clamping assembly 20 clamps the groove 1011 of the sealing assembly 101 of the nuclear power plant finger sleeve 100, ensuring the concentricity of the finger sleeve 100 and simplifying the structure. The second clamping assembly 30 is arranged adjacent to the first clamping assembly 20 and clamps the portion of the tube body 102 of the nuclear power plant finger sleeve 100 near the sealing assembly 101.

[0022] The straightening mechanism 40 is movably mounted on the bracket 10 along the length of the bracket 10. The straightening mechanism 40 includes a first mounting base 41 and a second mounting base 42 connected to each other. The first mounting base 41 and the second mounting base 42 can be made of 7075 aviation aluminum or stainless steel, such as stainless steel 304 or stainless steel 316L.

[0023] The first mounting base 41 is provided with a first handle 43, and the second mounting base 42 is provided with a second handle 44. The length directions of the first handle 43 and the second handle 44 are perpendicular to the length direction of the bracket 10. The first handle 43 and the second handle 44 are used by the operator to push and pull the straightening mechanism 40. The first handle 43 and the second handle 44 can be cylindrical, and they can be coaxially arranged.

[0024] The length directions of the first mounting base 41 and the second mounting base 42 are parallel to the length direction of the bracket 10. The first mounting base 41 is provided with a plurality of first rollers 45, which are spaced apart along the length direction of the first mounting base 41. The second mounting base 42 is provided with a plurality of second rollers 46, which are also spaced apart along the length direction of the second mounting base 42. A straightening channel is formed between the first rollers 45 and the second rollers 46, through which the tube body 102 of the nuclear power plant finger sleeve 100 passes. The number of first rollers 45 and second rollers 46 can be the same or different. In some embodiments, three first rollers 45 and four second rollers 46 can be provided. The first rollers 45 and second rollers 46 can be arranged opposite each other or staggered. The first rollers 45 and second rollers 46 can be straight rollers or inclined rollers. Both the first roller 45 and the second roller 46 may have annular grooves on their bodies to limit the movement of the tube 100.

[0025] When the straightening mechanism 40 moves back and forth along the length of the support 10, several first rollers 45 and several second rollers 46 straighten the tube body 102 of the nuclear power plant finger sleeve 100. Here, the length direction of the support 10 is the same as the insertion and withdrawal direction of the nuclear power plant finger sleeve 100.

[0026] See Figure 8 In some embodiments, the first mounting base 41 is provided with a plurality of upward-facing limiting grooves 411, which are spaced apart along the length of the first mounting base 41. The straightening mechanism 40 also includes a cover plate 412, which is detachably mounted on the upper surface of the first mounting base 41. The cover plate 412 covers the openings of all the limiting grooves 411. The straightening mechanism 40 also includes an adjusting block 413 and an adjusting member 414.

[0027] The adjusting block 413 is installed in the limiting groove 411. The shaft of the first roller 45 is connected to the adjusting block 413. The adjusting member 414 passes through the cover plate 412 and is connected to the adjusting block 413 to adjust the position of the adjusting block 413, thereby adjusting the distance between the first roller 45 and the second roller 46. This allows for adjustment of the straightening accuracy and the use of pipes with different diameters, thus improving its applicability.

[0028] In some embodiments, the adjusting member 414 includes an adjusting bolt, the cover plate 412 is provided with a positioning hole 4121, the threaded section of the adjusting bolt passes through the positioning hole 4121; the portion of the adjusting bolt located on the cover plate 412 is provided with a locking nut 415, and a gasket 416 is provided between the locking nut 415 and the upper surface of the cover plate 412.

[0029] In some embodiments, the cover plate 412 is connected to the first mounting base 41 by a fastener 417, which includes, but is not limited to, fastening bolts or fastening screws.

[0030] The first mounting base 41 and the second mounting base 42 are connected by a fastener 47, which includes, but is not limited to, a fastening screw. The fastener 47 can be tightened with a torque wrench to a torque of approximately 7~10 Nm.

[0031] See Figure 5 In some embodiments, the bracket 10 is provided with a guide rail 11, which extends along the length of the bracket 10, and the first mounting base 41 and / or the second mounting base 42 are movably mounted on the guide rail 11 via a slider 48.

[0032] See Figure 7 In some embodiments, the first clamping assembly 20 includes a first clamping block 21, a second clamping block 22, a rotating rod 23, and a locking bolt 24. The first end of the first clamping block 21 is connected to the first bracket 10, and a positioning post 211 is provided on the first clamping block 21. The first end of the second clamping block 22 is rotatably connected to the positioning post 211, for example, via a mounting shaft. The second end of the first clamping block 21 has a first opening groove 212, and the second end of the second clamping block 22 has a second opening groove 221. The first end of the rotating rod 23 is rotatably mounted in the first opening groove 212, for example, via a rotating shaft. The second end of the rotating rod 23 has a threaded groove 231, and the threaded section of the locking bolt 24 is installed in the threaded groove 231. Both the first clamping block 21 and the second clamping block 22 may have a first clamping groove, the arc shape and size of which are adapted to the slot 1011.

[0033] The first clamping assembly 20 has a locked state and an unlocked state. When the first clamping assembly 20 is in the locked state, the second end of the rotating rod 23 is located in the second opening groove 221, and the locking bolt 24 is located on the side opposite to the second clamping block 22 and the first clamping block 21. The locking bolt 24 is fastened to the threaded groove 231 to lock the first clamping block 21 and the second clamping block 22, thereby clamping the slot 1011 of the sealing assembly 101 of the nuclear power plant finger sleeve 100.

[0034] When the first clamping assembly 20 is in the unlocked state, the locking bolt 24 is loosened, the rotating rod 23 can rotate out of the second opening slot 221, the second clamping block 22 rotates around the positioning post 211, and then releases the slot 1011 of the sealing assembly 101 of the nuclear power plant finger sleeve 100.

[0035] See Figure 7In some embodiments, the second clamping assembly 30 includes a third clamping block 31, a fourth clamping block 32, and a locking screw 33. The first end of the third clamping block 31 is connected to the bracket 10, and the second end of the third clamping block 31 has a third opening groove 311. A positioning block 312 is provided in the middle of the third clamping block 31. The first end of the fourth clamping block 32 is rotatably connected to the positioning block 312, and the second end of the fourth clamping block 32 has a screw hole 321. The locking screw 33 is used to pass through the screw hole 321 to lock the third clamping block 31 and the fourth clamping block 32. Both the third clamping block 31 and the fourth clamping block 32 may have a second clamping groove, the arc shape and size of which are adapted to the tube body 102.

[0036] The second clamping assembly 30 has a locked state and an unlocked state. When the second clamping assembly 30 is in the locked state, the screw hole 321 and the third opening groove 311 are opposite to each other. The threaded section of the locking screw 33 passes through the screw hole 321, and the head of the locking screw 33 abuts against the lower surface of the third opening groove 311 to lock the third clamping block 31 and the fourth clamping block 32, so that the second clamping assembly 30 clamps the part of the tube body 102 of the nuclear power plant finger sleeve 100 close to the sealing assembly 101.

[0037] When the second clamping assembly 30 is in the unlocked state, the locking screw 33 rotates, causing its head to move away from the lower surface of the third opening groove 311. The fourth clamping block 32 rotates, causing the second clamping assembly 30 to release the portion of the nuclear power plant finger sleeve 100's tube body 102 that is close to the sealing assembly 101. The second clamping assembly 30 improves the stability of the nuclear power plant finger sleeve 100 during straightening operations, preventing rotation or axial movement of the finger sleeve 100.

[0038] See Figure 6 In some embodiments, the first clamping assembly 20 is provided at the first end of the support 10 along its length, and the second end of the support 10 along its length is provided with a limiting pad 12. The limiting pad 12 can play a limiting role, which can limit the slider 48 to prevent the straightening mechanism 40 from exceeding the working stroke and to buffer the push and pull. The limiting pad 12 can be a rubber pad.

[0039] The present invention also provides a manual straightening method for nuclear power plant finger sleeves, applicable to the manual straightening device for nuclear power plant finger sleeves in any of the above embodiments. The manual straightening method for nuclear power plant finger sleeves includes the following steps: S10: clamping the first clamping component 20 with the groove 1011 of the sealing component 101 of the nuclear power plant finger sleeve 100, and then clamping the portion of the tube body 102 of the nuclear power plant finger sleeve 100 near the sealing component 101 with the second clamping component 30.

[0040] S20: Hold the first handle 43 and the second handle 44 and push the straightening mechanism 40 back and forth along the length of the bracket 10 so that the first roller 45 and the second roller 46 straighten the tube body 102 of the nuclear power plant finger sleeve 100.

[0041] S30: Loosen the first clamping component 20 from the slot 1011 of the sealing component 101 of the nuclear power plant finger sleeve 100, and then loosen the second clamping component 30 from the part of the tube body 102 of the nuclear power plant finger sleeve 100 close to the sealing component 101; repeatedly adjust the position of the first clamping component 20 around the slot 1011 of the sealing component 101 of the nuclear power plant finger sleeve 100 in the circumferential direction, and repeat steps S10 and S20 until the tube body 102 of the nuclear power plant finger sleeve 100 meets the requirements.

[0042] In some embodiments, the manual straightening method for nuclear power plant finger sleeves further includes: S40: using a detection device 50 to detect whether the straightening of the tube body 102 of the nuclear power plant finger sleeve 100 meets the requirements. If it meets the requirements, the straightening operation of the tube body 102 of the nuclear power plant finger sleeve 100 is ended. If it does not meet the requirements, steps S10 to S30 can continue to be executed.

[0043] The structure of the detection device 50 is as follows Figure 9 As shown, the detection device 50 can be installed on the tube body 102, and the detection device 50 can be pushed and pulled along the insertion and withdrawal direction of the nuclear power plant finger sleeve 100. If it slides smoothly, it means that the nuclear power plant finger sleeve 100 has been straightened. Otherwise, continue to use the nuclear power plant finger sleeve manual straightening device to continue the straightening operation.

[0044] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A manual straightening device for finger sleeves in nuclear power plants, characterized in that, include: The bracket (10) is provided with a first clamping component (20) and a second clamping component (30). The first clamping component (20) is used to clamp the slot (1011) of the sealing component (101) of the nuclear power plant finger sleeve (100). The second clamping component (30) is arranged adjacent to the first clamping component (20). The second clamping component (30) is used to clamp the part of the tube body (102) of the nuclear power plant finger sleeve (100) near the sealing component (101). A straightening mechanism (40) is movably mounted on the support (10) along the length direction of the support (10). The straightening mechanism (40) includes a first mounting base (41) and a second mounting base (42) connected to each other. The first mounting base (41) is provided with a first handle (43), and the second mounting base (42) is provided with a second handle (44). The length directions of the first handle (43) and the second handle (44) are perpendicular to the length direction of the support (10). 2) The length direction is parallel to the length direction of the bracket (10). The first mounting base (41) is provided with a plurality of first rollers (45). The plurality of first rollers (45) are spaced apart along the length direction of the first mounting base (41). The second mounting base (42) is provided with a plurality of second rollers (46). The plurality of second rollers (46) are spaced apart along the length direction of the second mounting base (42). A straightening channel is formed between the first rollers (45) and the second rollers (46) for the tube body (102) of the nuclear power plant finger sleeve (100) to pass through. When the straightening mechanism (40) moves back and forth along the length of the support (10), a plurality of first rollers (45) and a plurality of second rollers (46) straighten the tube body (102) of the nuclear power plant finger sleeve (100).

2. The manual straightening device for nuclear power plant finger sleeves according to claim 1, characterized in that, The first mounting base (41) is provided with a plurality of upward-facing limiting grooves (411), and the plurality of limiting grooves (411) are spaced apart along the length direction of the first mounting base (41); the straightening mechanism (40) further includes a cover plate (412), the cover plate (412) being detachably installed on the upper surface of the first mounting base (41); the cover plate (412) covers the openings of all the limiting grooves (411); The straightening mechanism (40) also includes an adjusting block (413) and an adjusting component (414). The adjusting block (413) is installed in the limiting groove (411). The shaft of the first roller (45) is connected to the adjusting block (413). The adjusting member (414) passes through the cover plate (412) and is connected to the adjusting block (413) to adjust the position of the adjusting block (413), thereby adjusting the distance between the first roller (45) and the second roller (46).

3. The manual straightening device for nuclear power plant finger sleeves according to claim 2, characterized in that, The adjusting component (414) includes an adjusting bolt, and the cover plate (412) is provided with a positioning hole (4121). The threaded section of the adjusting bolt passes through the positioning hole (4121). The portion of the adjusting bolt located on the cover plate (412) is provided with a locking nut (415), and a washer (416) is provided between the locking nut (415) and the upper surface of the cover plate (412).

4. The manual straightening device for nuclear power plant finger sleeves according to claim 3, characterized in that, The cover plate (412) is connected to the first mounting base (41) by fasteners (417); The first mounting base (41) and the second mounting base (42) are connected by a fastener (47).

5. The manual straightening device for nuclear power plant finger sleeves according to claim 1, characterized in that, The bracket (10) is provided with a guide rail (11), which extends along the length of the bracket (10). The first mounting seat (41) and / or the second mounting seat (42) are movably mounted on the guide rail (11) via a slider (48).

6. The manual straightening device for nuclear power plant finger sleeves according to claim 1, characterized in that, The first clamping assembly (20) includes a first clamping block (21), a second clamping block (22), a rotating rod (23), and a locking bolt (24). The first end of the first clamping block (21) is connected to the first bracket (10). The first clamping block (21) is provided with a positioning post (211). The first end of the second clamping block (22) is rotatably connected to the positioning post (211). The second end of the first clamping block (21) is provided with a first opening groove (212), the second end of the second clamping block (22) is provided with a second opening groove (221), the first end of the rotating rod (23) is rotatably installed in the first opening groove (212), the second end of the rotating rod (23) is provided with a threaded groove (231), and the threaded section of the locking bolt (24) is installed in the threaded groove (231). The first clamping assembly (20) has a locked state and an unlocked state. When the first clamping assembly (20) is in the locked state, the second end of the rotating rod (23) is located in the second opening groove (221), and the locking bolt (24) is located on the side opposite to the second clamping block (22) and the first clamping block (21). The locking bolt (24) is fastened to the threaded groove (231) to lock the first clamping block (21) and the second clamping block (22), thereby clamping the slot (1011) of the sealing assembly (101) of the nuclear power plant finger sleeve (100). When the first clamping assembly (20) is in the unlocked state, the locking bolt (24) is loosened, the rotating rod (23) can rotate out of the second opening slot (221), the second clamping block (22) rotates around the positioning post (211), and then releases the slot (1011) of the sealing assembly (101) of the nuclear power plant finger sleeve (100).

7. The manual straightening device for nuclear power plant finger sleeves according to claim 1, characterized in that, The second clamping assembly (30) includes a third clamping block (31), a fourth clamping block (32), and a locking screw (33). The first end of the third clamping block (31) is connected to the bracket (10), the second end of the third clamping block (31) is provided with a third opening groove (311), the middle part of the third clamping block (31) is provided with a positioning block (312), the first end of the fourth clamping block (32) is rotatably connected to the positioning block (312), the second end of the fourth clamping block (32) is provided with a screw hole (321), and the locking screw (33) is used to pass through the screw hole (321) to lock the third clamping block (31) and the fourth clamping block (32). The second clamping assembly (30) has a locked state and an unlocked state. When the second clamping assembly (30) is in the locked state, the screw hole (321) and the third opening groove (311) are arranged opposite to each other. The threaded section of the locking screw (33) passes through the screw hole (321). The head of the locking screw (33) abuts against the lower surface of the third opening groove (311) to lock the third clamping block (31) and the fourth clamping block (32) so that the second clamping assembly (30) clamps the part of the tube body (102) of the nuclear power plant finger sleeve (100) close to the sealing assembly (101). When the second clamping assembly (30) is in the unlocked state, the locking screw (33) rotates, causing the head of the locking screw (33) to move away from the lower surface of the third opening slot (311), and the fourth clamping block (32) rotates, so that the second clamping assembly (30) releases the part of the tube body (102) of the nuclear power plant finger sleeve (100) that is close to the sealing assembly (101).

8. The manual straightening device for nuclear power plant finger sleeves according to claim 1, characterized in that, The first clamping component (20) is provided at the first end of the bracket (10) in the length direction, and the second end of the bracket (10) in the length direction is provided with a limiting pad (12).

9. A method for manually straightening finger sleeves in nuclear power plants, applied to the manual straightening device for finger sleeves in nuclear power plants according to any one of claims 1 to 8, characterized in that, The manual straightening method for the nuclear power plant finger sleeve includes the following steps: S10: The first clamping component (20) clamps the groove (1011) of the sealing component (101) of the nuclear power plant finger sleeve (100), and the second clamping component (30) clamps the part of the tube body (102) of the nuclear power plant finger sleeve (100) close to the sealing component (101). S20: Hold the first handle (43) and the second handle (44) and push the straightening mechanism (40) to move back and forth along the length of the bracket (10) so that the first roller (45) and the second roller (46) straighten the tube body (102) of the nuclear power plant finger sleeve (100); S30: Loosen the first clamping component (20) from the slot (1011) of the sealing component (101) of the nuclear power plant finger sleeve (100), and then loosen the second clamping component (30) from the part of the tube body (102) of the nuclear power plant finger sleeve (100) close to the sealing component (101); adjust the position of the first clamping component (20) around the slot (1011) of the sealing component (101) of the nuclear power plant finger sleeve (100) multiple times, and then repeat steps S10 and S20.

10. The manual straightening method for nuclear power plant finger sleeves according to claim 9, characterized in that, The manual straightening method for nuclear power plant finger sleeves also includes: S40: Use a testing device to check whether the straightening of the tube body (102) of the nuclear power plant finger sleeve (100) meets the requirements. If it meets the requirements, the straightening operation of the tube body (102) of the nuclear power plant finger sleeve (100) is completed.

Images