CN214445732U - Auxiliary device for machining nickel gasket of reactor pressure vessel - Google Patents
Auxiliary device for machining nickel gasket of reactor pressure vessel Download PDFInfo
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- CN214445732U CN214445732U CN202023243345.XU CN202023243345U CN214445732U CN 214445732 U CN214445732 U CN 214445732U CN 202023243345 U CN202023243345 U CN 202023243345U CN 214445732 U CN214445732 U CN 214445732U
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Abstract
The utility model belongs to nuclear power station reactor overhauls field, relates to a reactor pressure vessel nickel packing ring processing auxiliary device, include: the cutting positioning frame comprises a cutting positioning frame body and a cutting positioning frame fastening bolt, the nickel wire clamp comprises a nickel wire clamp body and a nickel wire clamp fastening bolt, and the foundation support frame comprises a foundation support frame body and a butterfly bolt; the basic support frame body is sleeved on the outer side of the flange simulating body, and the basic support frame body is fixedly connected with the flange simulating body through a butterfly bolt; the cutting positioning frame body is sleeved on the upper part of the basic support frame body, and the cutting positioning frame body is detachably connected with the basic support frame body through a cutting positioning frame fastening bolt; the nickel wire clamp body is located on the top surface of the basic support frame body, and the nickel wire clamp body is fixedly connected with the basic support frame body through a nickel wire clamp fastening bolt. The utility model discloses can effectively ensure independent usability and fail safe nature of each independent function.
Description
Technical Field
The utility model belongs to nuclear power station reactor overhauls the field, concretely relates to reactor pressure vessel nickel packing ring processing auxiliary device.
Background
The first project of the Tianwan nuclear power plant is two VVER-1000 type units, and the reactor is a B-428 type reactor. The reactor pressure vessel is an important component of the reactor for housing internals, core components (e.g., fuel assemblies, control rod assemblies and burnable poison assemblies) and other associated components (instrumentation, etc.). The reactor pressure vessel is the primary coolant pressure boundary and is the third barrier to fission product escape. The reactor pressure vessel and the upper component top cover are sealed by two annular nickel gaskets which are arranged in a V-shaped sealing groove of a pressure vessel flange through fastening bolts in a pressing mode, and the nickel gaskets are manufactured manually.
When the unit is disassembled and overhauled, the reactor is unsealed, and the disassembled old nickel gasket is discarded. When the reactor is installed and sealed again, a newly manufactured nickel gasket is installed, the processing and manufacturing period of the new nickel gasket is long, the time is about 48 hours, and the radiation dose at the flange of the reactor pressure vessel is high. In order to avoid occupying the time of a critical path for overhaul of a machine set and reduce the irradiation dose of an operator, the manufacturing of the new nickel gasket is generally finished on a 1:1 flange simulator of the pressure vessel. The specific manufacturing process comprises the following steps: firstly, two annular nickel gasket blanks are formed in a V-shaped groove of a flange simulator of a pressure vessel by smashing with a rubber hammer, a lead block is pressed on the nickel gasket to fully release the stress of a nickel wire parent material until the nickel wire is completely stretched, the nickel wire does not tilt in the V-shaped groove of the flange simulator in a free state, and the nickel wire is not stacked on the whole diameter. Because the nickel packing ring diameter is great, too much transport makes its deformation easily, the risk increase of colliding with, in order to avoid the unnecessary damage of colliding with of nickel packing ring, nickel packing ring joint connection process is handled and can only be accomplished on the flange analog body completely, will pound fashioned nickel silk to be raised and lay in self-control anchor clamps rectangular groove, compress tightly the clamp plate through two screws of the self-control anchor clamps of screwing and fix the nickel silk on self-control anchor clamps, according to reactor pressure vessel flange V type groove diameter size, utilize the bow to cut the unnecessary part in nickel packing ring both ends on the analog body flange, then use the file to restore the terminal surface after the cutting to satisfying the requirement. And respectively polishing and welding a groove on the end faces of the two ends of the nickel wire by using files, wherein the surface of the groove is required to be flat and smooth, and the angle between the groove and the end face is within a tolerance range. The most main process of the nickel gasket manufacturing is that the redundant welding flesh of the welding seam is removed and polished by a file after the nickel gasket is welded, the nickel wire base metal cannot be damaged in the polishing process, the polished dimensions of the welding seam surface roughness, the butt joint coaxiality, the excircle diameter and the like are required to be controlled within a tolerance range, and the whole nickel gasket manufacturing operation fails due to any out-of-tolerance.
The self-made clamp for manufacturing the nickel gasket has the following problems or hidden dangers in the use process: 1. the self-made nickel gasket cannot be fixed on a pressure vessel flange simulator in the using process, so that a nickel wire base material is easily damaged during cutting and polishing of the nickel gasket, and the nickel wire is scrapped; 2. when the nickel wire is cut, because the saw blade is used for cutting, the jumping saw is easily caused in the cutting process and the nickel wire base material is damaged on the basis of the characteristics of small diameter of the nickel wire and soft material of the nickel wire; 3. when the welding seam of the nickel washer joint is polished, the lower part of the welding seam needs to be lifted by about 60-80mm to conveniently polish the nickel washer placed on the self-made clamp, the stability of the self-made clamp is obviously reduced after the self-made clamp is lifted, the difficulty of polishing the welding seam is increased, and meanwhile, the risk of accidentally damaging the nickel wire base metal is increased.
Based on the above situation, it is highly desirable to develop an apparatus for machining a nickel gasket of a reactor pressure vessel, which can effectively solve the above problems and reduce the related risks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reactor pressure vessel nickel packing ring processing auxiliary device, the device will be to the function integration such as saw, file, the polishing of nickel packing ring on a device, can effectively ensure independent usability and the fail safe nature of each individual function.
Realize the utility model discloses the technical scheme of purpose: a reactor pressure vessel nickel washer processing aid, the aid comprising: the cutting positioning frame comprises a cutting positioning frame body and a cutting positioning frame fastening bolt, the nickel wire clamp comprises a nickel wire clamp body and a nickel wire clamp fastening bolt, and the foundation support frame comprises a foundation support frame body and a butterfly bolt; the basic support frame body is sleeved on the outer side of the flange simulating body, and the basic support frame body is fixedly connected with the flange simulating body through a butterfly bolt; the cutting positioning frame body is sleeved on the upper part of the basic support frame body, and the cutting positioning frame body is detachably connected with the basic support frame body through a cutting positioning frame fastening bolt; the nickel wire clamp body is located on the top surface of the basic support frame body, and the nickel wire clamp body is fixedly connected with the basic support frame body through a nickel wire clamp fastening bolt.
Furthermore, the basic support frame body comprises plate-shaped support legs and a basic support frame upper plate, the plate-shaped support legs are symmetrically arranged at two ends of the bottom surface of the basic support frame upper plate, and the plate-shaped support legs are fixedly connected with the basic support frame upper plate; the bottom surface of the upper plate of the basic support frame and the top surface of the flange simulator are arranged at intervals, and the bottom surfaces of the plate-shaped supporting legs are connected with a boss at the bottom of the flange simulator.
Furthermore, the plate-shaped supporting leg comprises a supporting hole and a positioning hole, the supporting hole is symmetrically arranged at the lower part of the plate-shaped supporting leg, the butterfly bolt penetrates through the supporting hole, and the head of the butterfly bolt is tightly propped against the side surface of the flange simulator; the positioning hole is arranged at the upper part of the plate-shaped supporting leg, the cutting positioning frame fastening bolt penetrates through the positioning hole, and the head of the cutting positioning frame fastening bolt is tightly propped against the side face of the flange simulating body.
Further, the foundation support frame upper plate includes the unthreaded hole, and the unthreaded hole link up to locate on the foundation support frame upper plate, is located the position that corresponds with flange analog body V type seal groove, unthreaded hole and nickel silk anchor clamps fastening bolt phase-match, and nickel silk anchor clamps fastening bolt passes the unthreaded hole, and nickel silk anchor clamps body passes through nickel silk anchor clamps fastening bolt fixed connection with the foundation support frame body.
Furthermore, the basic support frame also comprises a height extension support plate and a height extension support fastening nut, and the height extension support plate is arranged on the outer side of the plate-shaped support leg; the height extension supporting plate comprises a tongue-shaped guide groove B, the tongue-shaped guide groove B is formed in the bottom of the height extension supporting plate, the opening of the tongue-shaped guide groove B faces downwards, the opening of the tongue-shaped guide groove B is aligned with a screw of the butterfly bolt, and the height extension supporting plate is arranged on the screw of the butterfly bolt through the tongue-shaped guide groove B; the height extension support fastening nut is located on the outer side of the height extension support plate, the height extension support fastening nut is sleeved on a screw rod of the butterfly bolt, and the height extension support fastening nut is matched with the butterfly bolt and used for locking the position of the butterfly bolt on the tongue-shaped guide groove B.
Further, the nickel wire clamp further comprises a pressing plate, a pressing plate bolt and a rectangular sinking groove, the rectangular sinking groove is formed in the top of the nickel wire clamp body and is arranged along the center of the length direction, the rectangular sinking groove is communicated with the top of the nickel wire clamp body, the pressing plate is arranged at two ends of the top surface of the nickel wire clamp body respectively, the pressing plate bolt is located at a position corresponding to two sides of the rectangular sinking groove, and the pressing plate and the nickel wire clamp body are fixedly connected through the pressing plate bolt.
Furthermore, the nickel wire clamp body and the pressing plate are made of copper.
Furthermore, the cutting locating rack body comprises a cutting locating rack support plate and a cutting locating rack upper plate, the cutting locating rack support plate is symmetrically arranged at two ends of the bottom surface of the cutting locating rack upper plate, the cutting locating rack support plate is fixedly connected with the cutting locating rack upper plate, the bottom surface of the cutting locating rack upper plate is arranged at an interval with the top surface of the nickel wire fixture, and the bottom surface of the cutting locating rack support plate is connected with the top surface of the height extension support plate.
Furthermore, the cutting locating rack support plate comprises a tongue-shaped guide groove A, the tongue-shaped guide groove A is formed in the bottom of the cutting locating rack support plate, an opening of the tongue-shaped guide groove A faces downwards, the height of the tongue-shaped guide groove A corresponds to the position of the locating hole on the plate-shaped supporting leg, the opening of the tongue-shaped guide groove A is aligned with a screw rod of the cutting locating rack fastening bolt, and the cutting locating rack support plate is arranged on the screw rod of the cutting locating rack fastening bolt through the tongue-shaped guide groove A.
Furthermore, the cutting positioning frame upper plate comprises cutting guide grooves, the cutting guide grooves are formed along the length direction of the cutting positioning frame upper plate, and the cutting guide grooves penetrate through the cutting positioning frame upper plate and extend to the cutting positioning frame support plates on two sides of the bottom of the cutting positioning frame upper plate.
Further, the width of the cutting guide groove is slightly larger than the thickness of the steel saw blade, and the depth of the cutting guide groove is slightly lower than the height of the bottom of the nickel wire arranged in the nickel wire clamp.
Furthermore, the cutting locating rack upper plate also comprises a through hole which is arranged on the cutting locating rack upper plate in a penetrating way, and the position of the through hole corresponds to the position of the pressing plate.
Further, the through hole is rectangular.
The utility model has the advantages of:
1. the utility model discloses a reactor pressure vessel nickel washer processing auxiliary device, which is characterized in that four bolts with butterfly heads are symmetrically fastened on a pressure vessel main sealing surface flange simulator on two sides of a plate-shaped supporting leg of a basic supporting frame, and the reactor pressure vessel nickel washer processing auxiliary device can be conveniently, quickly moved and fixed by manually loosening the four bolts;
2. the utility model discloses a reactor pressure vessel nickel washer processing auxiliary device adds the height extension backup pad that opens the tongue type guide way outside the platelike landing leg of basic support frame both sides, fixes reactor pressure vessel nickel washer processing auxiliary device at a certain suitable height through the height extension support fastening nut on the butterfly bolt, has solved the height control problem when nickel washer welding seam lower part is polished;
3. the utility model discloses a reactor pressure vessel nickel washer processing auxiliary device fixes the nickel wire anchor clamps on the upper plate of the basic support frame through the fastening bolts of the nickel wire anchor clamps, which solves the defect that the nickel wire anchor clamps can not be fixed when the nickel wire anchor clamps are used for carrying out operations such as nickel wire cutting, groove polishing, welding seam polishing and the like; the nickel wire clamp adopts the design that the pressing plates at two ends tightly press the nickel wire, so that the nickel wire is prevented from loosening in the process of processing the nickel wire, and the reliability of clamping the nickel wire is improved;
4. the utility model discloses a reactor pressure vessel nickel packing ring processing auxiliary device has considered the softer easy characteristics of damaging of nickel packing ring material, and the overall structure all leaves sufficient space surplus to the position of easy contact nickel silk, and the nickel silk anchor clamps remove four fastening screw in both ends, and main part and clamp plate all adopt the brass material, and the brass does not harm the nickel silk promptly and has also guaranteed the necessary intensity of nickel silk anchor clamps.
5. The utility model discloses a reactor pressure vessel nickel washer processing auxiliary device installs the detachable cutting locating rack on the basic support frame, improves the nickel wire sawing reliability; the cutting positioning frame is locked and fixed on the basic supporting frame through the tongue-shaped guide grooves with openings on two sides by the fastening bolts of the cutting positioning frame, the cutting guide groove is designed on the upper part of the cutting positioning frame, and the cutting guide groove is slightly larger than the thickness of the saw blade, so that the saw blade can smoothly pass through the cutting guide groove, and the damage to a nickel wire base metal caused by the saw jumping of a saw bow during sawing is avoided;
6. the utility model discloses a reactor pressure vessel nickel washer processing auxiliary device sets up the through-hole on the cutting locating rack, can carry out the elasticity adjustment to the set screw on the nickel silk anchor clamps under the condition of not dismantling the cutting locating rack, and then adjust the position of nickel silk at the nickel silk anchor clamps;
7. the utility model discloses a reactor pressure vessel nickel packing ring processing auxiliary device will be to the saw of nickel packing ring, file, function integration such as polish on a device, guarantee the independent availability and the fail safe nature of each independent function simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of an auxiliary device for processing a nickel gasket of a reactor pressure vessel according to the present invention;
fig. 2 is a schematic cross-sectional view of the auxiliary device for processing a nickel gasket of a reactor pressure vessel along the direction a-a in fig. 1 according to the present invention.
In the figure: 1. cutting a positioning frame; 2. cutting a positioning frame fastening bolt; 3. a tongue-shaped guide groove A; 4. cutting a guide groove; 5. a through hole; 6. a nickel wire clamp; 7. pressing a plate; 8. a platen bolt; 9. a tongue-shaped guide groove B; 10. a butterfly bolt; 11. a base support frame; 12. a base support frame upper plate; 13. a height-extending support plate; 14. the height extension supports the fastening nut; 15. a light hole; 16. fastening a bolt by a nickel wire clamp; 17. a rectangular sink groove; 18. nickel wire; 19. a flange simulator; 20. the flange simulates a V-shaped sealing groove of a body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1-2, the utility model provides a pair of reactor pressure vessel nickel gasket processing auxiliary device, include: the cutting positioning frame 1 comprises a cutting positioning frame body, a cutting positioning frame fastening bolt 2, a tongue-shaped guide groove A3, a cutting guide groove 4 and a through hole 5, the nickel wire clamp 6 comprises a nickel wire clamp body, a pressing plate 7, a pressing plate bolt 8, a nickel wire clamp fastening bolt 16 and a rectangular sinking groove 17, and the basic supporting frame 11 comprises a basic supporting frame body, a tongue-shaped guide groove B9, a butterfly bolt 10, a height extension supporting plate 13, a height extension supporting fastening nut 14 and a unthreaded hole 15; the basic supporting frame body is sleeved on the outer side of the flange simulator 19, and the basic supporting frame body is fixedly connected with the flange simulator 19 through a butterfly bolt 10; the cutting positioning frame body is sleeved on the upper part of the basic support frame body, and the cutting positioning frame body is detachably connected with the basic support frame body through a cutting positioning frame fastening bolt 2; the nickel wire clamp body is located on the top surface of the basic support frame body, and the nickel wire clamp body is fixedly connected with the basic support frame body through a nickel wire clamp fastening bolt 16. The basic support frame 11 and the nickel wire clamp 6 are assembled for use, the polishing of a groove of a nickel gasket, the polishing of a welding seam after welding and the like can be realized, and the accurate cutting of the nickel gasket can be realized by installing the cutting positioning frame 1 on the basic support frame 11 and the nickel wire clamp 6 after the assembling.
As shown in fig. 2, the basic support frame body is of a door-shaped frame structure, and is mainly used for being reliably connected with the reactor pressure vessel main sealing surface flange simulator and providing a safe and reliable support platform for the cutting positioning frame and the nickel wire clamp. The basic support frame body comprises plate-shaped supporting legs and a basic support frame upper plate 12, the plate-shaped supporting legs are symmetrically arranged at two ends of the bottom surface of the basic support frame upper plate 12, and the plate-shaped supporting legs are fixedly connected with the basic support frame upper plate 12. The bottom surface of basic support frame upper plate 12 and the top surface interval setting of flange analog body 19 form certain clearance between the bottom surface of basic support frame upper plate 12 and the top surface of flange analog body 19, and when nickel silk 18 was installed flange analog body V type seal groove 20, basic support frame upper plate 12 can not press nickel silk 18, avoids the damage of nickel silk 18. The bottom surfaces of the plate-shaped supporting legs are connected with a boss at the bottom of the flange simulator 19; the medial surface of platelike landing leg and the side interval setting of the flange analog body 19 form certain clearance between the medial surface of platelike landing leg and the side of the flange analog body 19, and this clearance can be for butterfly bolt 10 on the one hand and leave the buffering when passing through the screw thread with basic support frame body and fixing on reactor pressure vessel owner sealing face flange analog body 19, and on the other hand is favorable to convenient, the swift dismantlement of basic support frame body.
As shown in fig. 1-2, the plate-like legs include support holes and positioning holes. Two support holes are symmetrically formed in the lower portion of each side plate-shaped support leg, the support holes in the two side plate-shaped support legs are located at the same position, the butterfly bolt 10 penetrates through the support holes, the support holes are in threaded fit with the butterfly bolt 10, the butterfly bolt 10 is screwed to the bottom until the head of the butterfly bolt 10 is tightly pressed against the side face of the flange simulator 19, and the two side plate-shaped support legs are fixed on the two sides of the flange simulator 19 of the main sealing face of the reactor pressure vessel respectively. Two positioning holes are formed in the upper portion of each side plate-shaped supporting leg, the two positioning holes are arranged in a staggered mode, the positions of the positioning holes in the two side plate-shaped supporting legs are the same, the cutting positioning frame fastening bolt 2 penetrates through the positioning holes, the positioning holes are in threaded fit with the cutting positioning frame fastening bolt 2, the tongue-shaped guide groove A3 in the cutting positioning frame body is aligned to the cutting positioning frame fastening bolt 2, the cutting positioning frame body is inserted to the bottom, the cutting positioning frame fastening bolt 2 is screwed to the bottom until the head of the cutting positioning frame fastening bolt 2 is tightly pressed against the side face of the flange simulation body 19, and the cutting positioning frame body is fixed on the two sides of each plate-shaped supporting leg.
As shown in fig. 1, two sides of the upper plate 12 of the base support frame are provided with the unthreaded holes 15, which are located at positions corresponding to the V-shaped sealing grooves 20 of the flange simulator, the unthreaded holes 15 are arranged to penetrate through the upper plate 12 of the base support frame, and the unthreaded holes 15 are matched with the fastening bolts 16 of the nickel wire clamp, so as to fix the nickel wire clamp body on the upper plate 12 of the base support frame. The nickel wire clamp fastening bolt 16 penetrates through the unthreaded hole 15, and the nickel wire clamp body is fixedly connected with the basic support frame body through the nickel wire clamp fastening bolt 16.
As shown in fig. 2, the height-extending support plate 13 is provided outside the plate-shaped leg; the height extension support plate 13 comprises a tongue-shaped guide groove B9, a tongue-shaped guide groove B9 is arranged at the bottom of the height extension support plate 13, the opening of a tongue-shaped guide groove B9 faces downwards, the opening of a tongue-shaped guide groove B9 is aligned with the screw of the butterfly bolt 10, the tongue-shaped guide groove B9 is installed on the screw of the butterfly bolt 10, and the height extension support plate 13 is installed on the screw of the butterfly bolt 10 through a tongue-shaped guide groove B9; the height extension support fastening nut 14 is located on the outer side of the height extension support plate 13, the height extension support fastening nut 14 is sleeved on the screw rod of the butterfly bolt 10, and the height extension support fastening nut 14 is matched with the butterfly bolt 10 and used for locking the position of the butterfly bolt 10 on the tongue-shaped guide groove B9. In order to facilitate manual tightening and loosening and increase friction force, knurling is performed on the outer surface of the height-extended support fastening nut 14.
When polishing the weld of the joint of the nickel wire 18, the nickel wire 18 mounted on the nickel wire jig 6 is raised by about 60 to 80mm together in order to conveniently polish the weld lower portion. When the overall height of the auxiliary device for processing the nickel washer of the reactor pressure vessel needs to be increased, the fastening nut 14 is loosened and supported in a height extending manner, the auxiliary device for processing the nickel washer of the reactor pressure vessel is lifted upwards to a proper height, the butterfly bolt 10 is locked, and the fastening nut 14 is screwed down and supported in a height extending manner, so that the overall height of the auxiliary device for processing the nickel washer of the reactor pressure vessel can be increased. The height extension support fastening nut 14 and the wing bolt 10 use the same screw, but do not affect the separate implementation of their functions.
As shown in fig. 1-2, the nickel wire clamp body is a copper cuboid structure, and is used for installing a nickel wire 18 in a rectangular sinking groove 17 to perform cutting, groove grinding, weld grinding and the like on the nickel wire 18. The rectangle sinks groove 17 to set up and puts along length direction's central point in nickel silk anchor clamps body top, and rectangle sinks groove 17 to link up at nickel silk anchor clamps body top, and two clamp plates 7 are located the both ends of nickel silk anchor clamps body top surface respectively, and clamp plate bolt 8 is located and sinks the both sides of groove 17 with the rectangle, the position corresponding with clamp plate 7, and every clamp plate 7 corresponds two clamp plate bolts 8, and clamp plate 7 passes through clamp plate bolt 8 fixed connection with the nickel silk anchor clamps body. The nickel wire 18 is placed in the rectangular sinking groove 17, and the pressing plate 7 is locked by tightening and loosening the pressing plate bolts 8 at the two ends of the nickel wire clamp body, so that the nickel wire 18 is fixed in the rectangular sinking groove 17. When the nickel wire 18 needs to be processed, the nickel wire clamp 6 is arranged on the corresponding position of the upper plate 12 of the basic support frame.
As shown in fig. 1-2, the cutting and positioning frame body is of a door-shaped frame structure and is used for cutting and positioning the redundant part at the head of the nickel wire and guiding the saw blade to move back and forth. The cutting positioning frame body comprises a cutting positioning frame support plate and a cutting positioning frame upper plate, the cutting positioning frame support plate is symmetrically arranged at two ends of the bottom surface of the cutting positioning frame upper plate, the cutting positioning frame support plate is fixedly connected with the cutting positioning frame upper plate, the bottom surface of the cutting positioning frame upper plate is arranged at an interval with the top surface of the nickel wire clamp 6, and the bottom surface of the cutting positioning frame support plate is jointed with the top surface of the height extension support plate 13;
as shown in fig. 1, a tongue-shaped guide groove A3 with a downward opening is provided at the bottom of the cutting jig support plate, the height of the tongue-shaped guide groove A3 corresponds to the position of the positioning hole on the plate-shaped leg, the opening of the tongue-shaped guide groove A3 is aligned with the screw of the cutting jig fastening bolt 2, and the cutting jig support plate is provided on the screw of the cutting jig fastening bolt 2 through the tongue-shaped guide groove A3. Offer tongue type guide way 3 on the cutting locating rack extension board, the dismouting of can being convenient for will cut the locating rack body and fix a position on cutting locating rack fastening bolt 2, guaranteed the mounted position of cutting locating rack 1.
In order to facilitate manual tightening of the cutting positioning frame fastening bolt 2 and increase friction force, knurling is conducted on the outer surface of the cutting positioning frame fastening bolt 2, a circular gasket is additionally arranged between the cutting positioning frame fastening bolt 2 and a cutting positioning frame supporting plate, and the cutting positioning frame fastening bolt 2 is guaranteed to be not easy to loosen during manual tightening.
As shown in fig. 1, a cutting guide groove 4 is formed in the cutting and positioning frame upper plate along the length direction, and the cutting guide groove 4 penetrates through the cutting and positioning frame upper plate and extends to cutting and positioning frame support plates on two sides of the bottom of the cutting and positioning frame upper plate. The width of the cutting guide groove 4 is slightly larger than the thickness of the hacksaw blade, so that the hacksaw blade is ensured not to move forwards and backwards and is prevented from being damaged in the process of cutting the nickel wires 18 by using the hacksaw blade. The depth of the cutting guide groove 4 is slightly lower than the height of the bottom of the nickel wire 18 placed in the nickel wire clamp 6, so that the nickel wire 18 can be sawn off, and the saw blade is prevented from being damaged due to the too deep groove.
As shown in fig. 2, two through holes 5 are formed in the upper plate of the cutting and positioning frame, the through holes 5 are rectangular, the through holes 5 penetrate through the upper plate of the cutting and positioning frame, and the positions of the through holes 5 correspond to the positions of the pressing plates 7.
When the nickel wire 18 with the cutting mark ready is arranged on the nickel wire clamp 6 to prepare for cutting the redundant part at the head of the nickel wire 18 and the cutting locating frame 1 is arranged on the basic supporting frame 11, the position of the nickel wire 18 in the nickel wire clamp 6 can be directly adjusted by tightly tightening the pressing plate bolt 8 through the through hole 5 under the condition that the cutting locating frame 1 is not detached, and the complexity of repeatedly detaching the cutting locating frame 1 is reduced by the design of the through hole 5, and the working efficiency is also improved.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the above examples, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.
Claims (13)
1. An auxiliary device for processing a nickel gasket of a reactor pressure vessel, which is characterized by comprising: the cutting positioning frame (1) comprises a cutting positioning frame body and a cutting positioning frame fastening bolt (2), the nickel wire clamp (6) comprises a nickel wire clamp body and a nickel wire clamp fastening bolt (16), and the basic supporting frame (11) comprises a basic supporting frame body and a butterfly bolt (10); the basic supporting frame body is sleeved on the outer side of the flange simulating body (19), and the basic supporting frame body is fixedly connected with the flange simulating body (19) through a butterfly bolt (10); the cutting positioning frame body is sleeved on the upper part of the basic support frame body, and the cutting positioning frame body is detachably connected with the basic support frame body through a cutting positioning frame fastening bolt (2); the nickel wire clamp body is located on the top surface of the basic support frame body, and the nickel wire clamp body is fixedly connected with the basic support frame body through a nickel wire clamp fastening bolt (16).
2. The auxiliary device for processing the nickel gasket of the reactor pressure vessel as claimed in claim 1, wherein the basic support frame body comprises plate-shaped legs and a basic support frame upper plate (12), the plate-shaped legs are symmetrically arranged at two ends of the bottom surface of the basic support frame upper plate (12), and the plate-shaped legs are fixedly connected with the basic support frame upper plate (12); the bottom surface of the upper plate (12) of the basic support frame and the top surface of the flange simulating body (19) are arranged at intervals, and the bottom surfaces of the plate-shaped supporting legs are connected with a boss at the bottom of the flange simulating body (19).
3. The auxiliary device for processing the nickel washer of the reactor pressure vessel as claimed in claim 2, wherein the plate-shaped support leg comprises a support hole and a positioning hole, the support hole is symmetrically arranged at the lower part of the plate-shaped support leg, the butterfly bolt (10) penetrates through the support hole, and the head of the butterfly bolt (10) is tightly propped against the side surface of the flange simulator (19); the locating hole is arranged at the upper part of the plate-shaped supporting leg, the cutting locating frame fastening bolt (2) penetrates through the locating hole, and the head of the cutting locating frame fastening bolt (2) is tightly propped against the side face of the flange simulating body (19).
4. The auxiliary device for machining the nickel washer of the reactor pressure vessel as recited in claim 2, wherein the base support frame upper plate (12) comprises an unthreaded hole (15), the unthreaded hole (15) is arranged on the base support frame upper plate (12) in a penetrating manner and is located at a position corresponding to the V-shaped sealing groove (20) of the flange simulator, the unthreaded hole (15) is matched with the nickel wire clamp fastening bolt (16), the nickel wire clamp fastening bolt (16) penetrates through the unthreaded hole (15), and the nickel wire clamp body is fixedly connected with the base support frame body through the nickel wire clamp fastening bolt (16).
5. The reactor pressure vessel nickel washer processing auxiliary device of claim 3, characterized in that the basic support frame (11) further comprises a height extension support plate (13) and a height extension support fastening nut (14), the height extension support plate (13) is arranged outside the plate-shaped support leg; the height extension supporting plate (13) comprises a tongue-shaped guide groove B (9), the tongue-shaped guide groove B (9) is arranged at the bottom of the height extension supporting plate (13), the opening of the tongue-shaped guide groove B (9) faces downwards, the opening of the tongue-shaped guide groove B (9) is aligned with the screw rod of the butterfly bolt (10), and the height extension supporting plate (13) is arranged on the screw rod of the butterfly bolt (10) through the tongue-shaped guide groove B (9); the height extension support fastening nut (14) is located on the outer side of the height extension support plate (13), the height extension support fastening nut (14) is sleeved on a screw rod of the butterfly bolt (10), and the height extension support fastening nut (14) is matched with the butterfly bolt (10) and used for locking the position of the butterfly bolt (10) on the tongue-shaped guide groove B (9).
6. The reactor pressure vessel nickel washer machining auxiliary device of claim 1, characterized in that, the nickel wire anchor clamps (6) further include a pressing plate (7), a pressing plate bolt (8) and a rectangular sink groove (17), the rectangular sink groove (17) is opened at the center position of the top of the nickel wire anchor clamps body along the length direction, the rectangular sink groove (17) is through at the top of the nickel wire anchor clamps body, the pressing plate (7) is respectively arranged at the two ends of the top surface of the nickel wire anchor clamps body, the pressing plate bolt (8) is arranged at the position corresponding to the two sides of the rectangular sink groove (17), and the pressing plate (7) is fixedly connected with the nickel wire anchor clamps body through the pressing plate bolt (8).
7. The auxiliary device for processing the nickel gasket of the reactor pressure vessel as claimed in claim 6, wherein the nickel wire clamp body and the pressing plate (7) are made of copper.
8. The auxiliary device for machining the nickel gasket of the reactor pressure vessel as claimed in claim 3, wherein the cutting and positioning frame body comprises a cutting and positioning frame support plate and a cutting and positioning frame upper plate, the cutting and positioning frame support plate is symmetrically arranged at two ends of the bottom surface of the cutting and positioning frame upper plate, the cutting and positioning frame support plate is fixedly connected with the cutting and positioning frame upper plate, the bottom surface of the cutting and positioning frame upper plate is arranged at an interval with the top surface of the nickel wire clamp (6), and the bottom surface of the cutting and positioning frame support plate is jointed with the top surface of the height-extending support plate (13).
9. The auxiliary device for processing the nickel washer of the reactor pressure vessel as claimed in claim 8, wherein the cutting and positioning frame support plate comprises a tongue-shaped guide groove A (3), the tongue-shaped guide groove A (3) is arranged at the bottom of the cutting and positioning frame support plate, the opening of the tongue-shaped guide groove A (3) faces downwards, the height of the tongue-shaped guide groove A (3) corresponds to the position of the positioning hole on the plate-shaped supporting leg, the opening of the tongue-shaped guide groove A (3) is aligned with the screw rod of the cutting and positioning frame fastening bolt (2), and the cutting and positioning frame support plate is arranged on the screw rod of the cutting and positioning frame fastening bolt (2) through the tongue-shaped guide groove A (3).
10. The auxiliary device for machining the nickel gasket of the reactor pressure vessel according to claim 8, wherein the cutting positioning frame upper plate comprises cutting guide grooves (4), the cutting guide grooves (4) are formed along the length direction of the cutting positioning frame upper plate, and the cutting guide grooves (4) penetrate through the cutting positioning frame upper plate and extend to cutting positioning frame support plates on two sides of the bottom of the cutting positioning frame upper plate.
11. The reactor pressure vessel nickel washer processing aid of claim 10, characterized in that the width of the cutting guide groove (4) is slightly larger than the thickness of the hacksaw blade, and the depth of the cutting guide groove (4) is slightly lower than the height of the bottom of the nickel wire (18) placed in the nickel wire clamp (6).
12. The auxiliary device for processing the nickel gasket of the reactor pressure vessel as claimed in claim 8, wherein the cutting positioning frame upper plate further comprises a through hole (5), the through hole (5) is formed in the cutting positioning frame upper plate in a penetrating manner, and the position of the through hole (5) corresponds to the position of the pressing plate (7).
13. The reactor pressure vessel nickel gasket machining aid of claim 12, characterized in that the through hole (5) is rectangular.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023243345.XU CN214445732U (en) | 2020-12-29 | 2020-12-29 | Auxiliary device for machining nickel gasket of reactor pressure vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023243345.XU CN214445732U (en) | 2020-12-29 | 2020-12-29 | Auxiliary device for machining nickel gasket of reactor pressure vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193086A (en) * | 2021-11-12 | 2022-03-18 | 江苏核电有限公司 | Off-line manufacturing method for nickel gasket of main sealing surface of reactor pressure vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193086A (en) * | 2021-11-12 | 2022-03-18 | 江苏核电有限公司 | Off-line manufacturing method for nickel gasket of main sealing surface of reactor pressure vessel |
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