CN112201375A - Main shaft translation winding mechanism for dismantling nuclear reactor detector assembly and use method - Google Patents
Main shaft translation winding mechanism for dismantling nuclear reactor detector assembly and use method Download PDFInfo
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- CN112201375A CN112201375A CN202011132891.8A CN202011132891A CN112201375A CN 112201375 A CN112201375 A CN 112201375A CN 202011132891 A CN202011132891 A CN 202011132891A CN 112201375 A CN112201375 A CN 112201375A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The invention discloses a main shaft translation winding mechanism for dismantling a nuclear reactor detector assembly and a using method thereof.A switching slide rail (315) arranged in an outer frame body (307), a left winding main shaft module (302) and a right winding main shaft module (305) are assembled in a sliding way along the switching slide rail (315); the device also comprises an integral translation sliding rail (303) arranged in the outer frame body (307), and an integral translation frame (314) assembled along the integral translation sliding rail (303) in a sliding way; the left winding spindle module (302) and the right winding spindle module (305) are simultaneously assembled with the integral translation frame (314) in a linkage manner; the integral translation device also comprises an integral translation driving component (301) which is connected with the integral translation frame (314) and controls the integral translation driving component to translate along the integral translation sliding rail (303); the winding mechanism further comprises an opening and closing driving assembly which is connected with the left winding spindle module (302) and the right winding spindle module (305) and controls the left winding spindle module (302) and the right winding spindle module (305) to move along the opening and closing slide rail (315) in opposite directions or in opposite directions.
Description
Technical Field
The invention relates to the technical field of reactor equipment disassembly, in particular to a spindle translation winding mechanism for disassembling a nuclear reactor detector assembly and a using method.
Background
The Hualongyi nuclear reactor adopts an advanced reactor core measuring system, and compared with an M310 type power station, the reactor omits a pressure vessel bottom head opening hole, and improves the safety. The neutron-temperature detector assembly introduced from the top cover of the reactor pressure vessel by the advanced reactor core measuring system is influenced by burnup, and the integral replacement of the detector assembly needs to be considered after 2-3 refueling periods. Although the AP1000 station employs similar probe assemblies, which also require periodic replacement, no relevant replacement equipment is queried. Prior to the present invention, the russian VVER-1000 stack (used by the units No. 1&2, tianwan) had a tool for removing the probe assembly from the header, which was manually extracted, separated, and wound into high-loft lengths.
The invention relates to a main shaft translation winding mechanism for winding a high-level section of a nuclear reactor detector assembly, which is designed aiming at the problem that the high-level section of the detector assembly needs to be wound and stored so as to facilitate the subsequent treatment of radioactive wastes in the process of dismounting the detector assembly.
At present, no patent application for the spindle translation winding technology in the detector assembly dismantling process exists at home and abroad.
Disclosure of Invention
The invention aims to provide a main shaft translation winding mechanism for dismantling a nuclear reactor detector assembly, and provides equipment capable of executing winding action after the detector assembly is lifted and sheared so as to fulfill the aims of completing the winding action after the lifting and shearing are matched and realizing the capacity reduction and storage of the detector assembly.
The invention is realized by the following technical scheme:
in the process of dismantling the detector assembly, in order to meet the radiation protection requirements of operators and the environment and be beneficial to subsequent storage and treatment of the detector assembly high-level section, the detector assembly high-level section with the diameter phi of 7.5mm and the length of about 10m needs to be wound into a winding with the size not exceeding phi 120mm multiplied by 120mm, and the winding is moved to the upper part of the temporary storage container after the winding is finished and is placed into the temporary storage container for temporary storage.
The invention is used for remotely and automatically winding the high-level section of the detector assembly and transferring and releasing the wound coil, and can be applied to the underwater environment so as to reduce the irradiation dose borne by operators and improve the replacement efficiency of the detector assembly.
A main shaft translation winding mechanism for dismantling a nuclear reactor detector assembly,
the winding machine comprises an outer frame body, an opening and closing slide rail arranged in the outer frame body, a left winding main shaft module and a right winding main shaft module which are assembled in a sliding mode along the opening and closing slide rail;
the sliding device also comprises an integral translation sliding rail arranged in the outer frame body and assembled along the integral translation sliding rail in a sliding way;
the left winding main shaft module and the right winding main shaft module are simultaneously assembled with the integral translation frame in a linkage manner; the integral translation driving component is connected to the integral translation frame and controls the integral translation driving component to translate along the integral translation sliding rail;
the opening and closing driving assembly is connected to the left winding spindle module and the right winding spindle module and controls the left winding spindle module and the right winding spindle module to move in the opposite direction or in the opposite direction along the opening and closing slide rail.
The left winding main shaft module comprises a left box body B, a left winding main shaft B and a left linkage component B,
an extension part B is formed on the lower side surface of the left box body B, a left winding main shaft B transversely penetrates through the extension part B,
the left linkage assembly B comprises a transverse linkage assembly B and a vertical linkage assembly B;
the vertical linkage assembly B is used for driving the left winding spindle B to rotate, the transverse linkage assembly B is linked with a power device of the right winding spindle module, and the transverse linkage assembly B is linked with the vertical linkage assembly B.
The transverse linkage assembly B comprises: the coupler B3 is linked with the power device of the right winding main shaft module, the telescopic rod is in transmission connection with the coupler B3, and the coupler B2 is in transmission connection with the telescopic rod;
vertical linkage subassembly B is including transmission connection in proper order: a transmission shaft B2, a coupling B1, a connecting shaft B, a transmission shaft B1, a speed reducer B1, a speed reducer gear B and a winding main shaft gear B;
the winding main shaft gear B is sleeved on the left winding main shaft B;
the reducer B2 is further included, the transverse end of the reducer B2 is in transmission connection with the coupler B2, and the vertical end of the reducer B2 is in transmission connection with the transmission shaft B2.
The right winding main shaft module comprises a right box body C, a right winding main shaft C and a right linkage component B;
an extension part C is formed on the lower side surface of the right box body C, a right winding main shaft C transversely penetrates through the extension part C,
the right linkage assembly B comprises a transverse linkage assembly C, a vertical linkage assembly C and a material returning assembly C;
the vertical linkage assembly C is used for driving the right winding main shaft C, and the transverse linkage assembly C is used for providing power for the left winding main shaft module; and the material returning component C is used for pushing the detector component high-level section wound on the right winding main shaft C.
Vertical linkage subassembly C is including transmission connection in proper order: a downward speed reducer C, a transmission shaft C2, a coupling C, a transmission shaft C1, a speed reducer C1, a speed reducer gear C and a winding main shaft gear C; a winding main shaft gear C is sleeved on the right winding main shaft C;
the transverse linkage assembly C comprises a transverse speed reducer C;
the horizontal speed reducer C and the downward speed reducer C are linked with the winding motor C; the transverse speed reducer C is in transmission connection with the left winding main shaft module and provides power for the left winding main shaft module;
material returned subassembly C is including transmission connection in proper order: the push rod motor, the speed reducer C2, the transmission shaft C3, the push plate connecting rod C, the push plate C and the push rod C; wherein the push plate C and the push rod C are sleeved on the right winding main shaft C; the push rod motor and the speed reducer C2 are assembled in the right box body C.
The drive assembly that opens and shuts includes: 1 goes into 2 and goes out the reduction gear, the motor that opens and shuts, 1 goes into 2 power input part that go out the reduction gear and is connected with the motor transmission that opens and shuts, 1 goes into 2 power output parts that go out the reduction gear and connects respectively in 2 extending structure, and wherein 1 extending structure transmission is connected in left side winding main shaft module, 1 extending structure transmission in addition connects in right side winding main shaft module.
The integral translation driving component comprises a driving mechanism which is connected in sequence: translation actuating motor, coupling A, reduction gear A, the electronic jar A of translation drive assemble in outer frame body, and the flexible end of the electronic jar A of translation drive is connected in whole translation frame.
The left winding main shaft module comprises a left box body B, a left winding main shaft B and a left linkage component B,
an extension part B is formed on the lower side surface of the left box body B, a left winding main shaft B transversely penetrates through the extension part B,
the left linkage assembly B comprises a transverse linkage assembly B and a vertical linkage assembly B;
the vertical linkage assembly B is used for driving the left winding main shaft B to rotate, and the transverse linkage assembly B is linked with the vertical linkage assembly B;
the right winding main shaft module comprises a right box body C, a right winding main shaft C and a right linkage component B;
an extension part C is formed on the lower side surface of the right box body C, a right winding main shaft C transversely penetrates through the extension part C,
the right linkage assembly B comprises a transverse linkage assembly C, a vertical linkage assembly C and a material returning assembly C;
the vertical linkage assembly C is used for driving the right winding main shaft C, and the material returning assembly C is used for pushing the detector assembly high-level section wound on the right winding main shaft C;
the transverse linkage component B is in transmission connection with the transverse linkage component C; the left winding main shaft B and the right winding main shaft C are coaxially arranged.
Based on the use method of the main shaft translation winding mechanism for dismantling the nuclear reactor detector assembly,
when the left winding main shaft module and the right winding main shaft module are folded in place, the following steps are executed:
s1, starting the winding motor C in the right winding main shaft module, the left winding main shaft B of the left winding main shaft module and the right winding main shaft C of the right winding main shaft module start to synchronously rotate, and after each synchronous winding of the left winding main shaft B and the right winding main shaft C rotates for one circle, turning to the step S2,
s2, starting the integral translation driving assembly to drive the integral translation frame, and driving the left winding spindle module and the right winding spindle module to integrally translate by a distance equal to the diameter of the detector assembly by the integral translation frame;
s3, repeating S1 and S2 for multiple times until the high-level section of the detector assembly is wound, and turning to the step S4;
s4, starting the integral translation driving assembly to drive the integral translation frame, driving the left winding main shaft module and the right winding main shaft module to integrally translate by the integral translation frame so that the left winding main shaft module and the right winding main shaft module are translated to a release position from a winding position, and then turning to S5;
s5, starting the open-close driving component to make the winding motor C in the right winding main shaft module move reversely, then turning S6,
and S6, starting the material returning assembly C of the right winding spindle module, and pushing the winding by the material returning assembly C so that the winding is separated from the right winding spindle module of the right winding spindle module and falls into the temporary storage container.
And S3, finishing four-layer winding until the high-amplification section of the detector assembly is arranged.
The left winding spindle module and the right winding spindle module are synchronously driven to move in opposite directions or in opposite directions through the opening and closing driving assembly, so that clamping and releasing of the detector assembly (a low-level section and a high-level section) are realized; a winding motor in the right winding spindle module is used for driving the left winding spindle B and the right winding spindle C to rotate simultaneously, so that the winding of the high-level section of the detector assembly is realized; the integral translation driving component simultaneously drives the left winding main shaft module and the right winding main shaft module to move in the same direction, and two functions are completed: in the winding process, the left winding main shaft B and the right winding main shaft C simultaneously translate for a specified distance (equal to the diameter of the high-level section of the detector assembly) every turn, so that the high-level section of the detector assembly becomes uniform and regular winding. ② transferring the winding from the winding position to the releasing position after the winding is completed.
All work can be done underwater.
The invention adopts an automatic mode and provides a manual operation mode in an emergency state, and the invention provides a handle C and a handle A, wherein the handle C is transmitted with a downward speed reducer C and is used as a backup power of a winding motor C, and the handle A is transmitted with the speed reducer A and is used as a backup power of a translation driving motor.
The invention relates to a main entity of a main shaft translation winding mechanism for dismantling a nuclear reactor detector assembly, which comprises an integral translation driving assembly, a left winding main shaft module, a right winding main shaft module and the like.
The integral translation driving assembly is used for completing integral translation of the whole winding mechanism from a winding position to a releasing winding position and moving the distance of the radial size of one detector assembly along the horizontal direction every turn of a winding main shaft in the winding process, and a translation driving motor in the integral translation driving assembly drives a translation driving electric cylinder A through a speed reducer A to complete the action of moving the integral translation frame left and right on the guide rail. The handle A is in transmission with the reducer A, and as a manual operation supplementing means when the translation driving electric cylinder A fails, the translation system is driven by manually rotating the hand wheel under the condition that the translation driving electric cylinder A fails accidentally, so that the manual mode is considered.
The left winding spindle module and the right winding spindle module are both arranged on the integral translation frame and can move along with the integral translation frame, and in the winding process, the left winding spindle B and the right winding spindle C rotate for one circle, and through control coupling, the translation driving electric cylinder A drives the integral mechanism to translate for a distance of the diameter of the high-level section of the detector assembly, so that the detector assemblies are guaranteed to be arranged orderly and reciprocate twice, and are wound for 4 layers; after winding is completed, the translation of the winding position to the winding release position is then completed.
The left winding spindle module and the right winding spindle module can move in opposite directions or opposite directions simultaneously under the driving of an opening and closing motor, the opening and closing motor is connected with two outputs of 1-in 2-out speed reducer, the left side of the 1-in 2-out speed reducer is connected with an electric cylinder (telescopic device), the left side box body B of the left winding spindle module translates on a guide rail, the right side of the 1-in 2-out speed reducer is connected with an electric cylinder (telescopic device), the right side box body C of the right winding spindle module translates on the guide rail, the output directions of the two sides of the 1-in 2-out speed reducer move in opposite directions or opposite directions, and the left winding spindle module and the right winding spindle module can move in opposite directions or opposite.
The winding motor C is connected with a speed reducer C (a downward speed reducer C and a transverse speed reducer C), two paths of outputs of the speed reducer C (the downward speed reducer C and the transverse speed reducer C) respectively transmit winding motion to the left winding main shaft and the right winding main shaft, and the two are completely synchronous, so that the left winding module and the right winding module can rotate simultaneously when being folded, and a winding function is realized. The handle C is connected with the speed reducer C, and manual winding under the condition of motor failure can be realized.
And a winding motor C of the right winding spindle module is positioned above the right box body and provides power for winding of the left winding spindle module and the right winding spindle module. The right winding spindle module has the following main structure: the right box body is a bearing main body of the whole right winding main shaft module, and two sliding blocks C are arranged on two sides of the right box body and used for moving on the guide rail; the winding motor outputs power to the right winding spindle C and the left winding spindle B through the two output speed reducers and the transmission chain of the left winding spindle module to realize rotation;
the function of the left winding spindle module is similar to that of the right winding spindle module, the translational motion direction is opposite, and the rotation direction is the same.
Meanwhile, a push rod is arranged on the right winding main shaft to limit the winding to be incapable of moving right along with the right winding main shaft, separating from the right winding main shaft and falling to a storage position to complete the release of the winding.
The invention can achieve the following effects:
1. layered arrangement and long-distance power transmission. The motors are arranged above the water surface, so that the requirement on the waterproof performance of the motors is lowered; the power transmission is completed through the multi-cascade shaft device;
2. the output end of a reducer of the motor is connected with an electric cylinder, the electric cylinder is connected with an integral translation frame, and an integral translation slide rail is fixed on an outer frame body of the shearing and winding device; the left and right winding main shaft modules are fixed on the integral translation frame; in the winding process of the high-tension section, the left winding main shaft and the right winding main shaft rotate for one circle, the translation motor translates the distance of the diameter of one detector assembly, the detector assemblies are guaranteed to be arranged neatly when being wound, the detection assemblies reciprocate twice, four layers are arranged, and the final winding shape is standardized.
3. The handle can be used as an emergency translation and winding operation means in a fault state, so that the reliability of the equipment is improved;
4. the opening and closing motor respectively drives the left winding main shaft module and the right winding main shaft module through the input and output speed reducers to realize synchronous opposite and opposite movement of the left winding main shaft module and the right winding main shaft module;
5. the winding motor synchronously completes the winding function of the left and right winding main shaft modules by being provided with two output speed reducers, and the access of a winding hand wheel is in consideration of a manual mode;
6. the transfer of the winding from the winding position to the release position can be achieved; meanwhile, in the release position, when the right winding spindle module is driven by the winding motor to translate rightwards, the winding spindle module is separated from the right winding spindle, and therefore the winding is released.
7. The functions of coiling and shrinking the high-magnification section, transferring and coiling to a storage position and releasing and the like of the detector assembly at the end of the service life are fully automatically realized, and the irradiation dose borne by an operator is reduced;
8. the reactor can be widely applied to a reactor with neutron-temperature detector components led out from a pressure vessel top cover, can be directly applied to the top of a Hualong series of reactors, and can also be applied to a Tianwan VVER type power station after local improvement.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic side view of a shield structure closure.
Fig. 2 is a side view of the shield structure open.
Fig. 3 is a schematic view of a spindle translation winding mechanism (shear winding device).
FIG. 3 is a side view of the spindle translation winding mechanism (shear winding apparatus).
Fig. 4 is a schematic plan view of the spindle translation winding mechanism (shear winding device).
Fig. 5 is a block translation drive system configuration.
Fig. 6 is a schematic structural diagram of the left winding spindle module.
Fig. 7 is a schematic view of the left winding spindle module structure AA.
Fig. 8 is a schematic top view of the left winding spindle module.
Fig. 9 is a perspective view of the left winding spindle module structure.
Fig. 10 is a structural schematic diagram of a right winding spindle module.
FIG. 11 is a schematic view of the right reel spindle module configuration AA.
Fig. 12 is a schematic top view of a right winding spindle module configuration.
FIG. 13 is a perspective view of the right spool module configuration.
The reference numerals in fig. 1-2 are respectively denoted as:
308. shearing a cutter; 310A, a detector component low-level section; 310B, a detector assembly high-amplification section; 311. a winding shaft; 3041. an electric telescopic cylinder; 3042. lifting the substrate; 3043. a pin shaft; 3044. a slider; 3045. a guide rail; 3047. a connecting rod; 3048. a bridge plate; 3048A, a left shield; 3048B, a right shield; 3049. a link shaft; 3049A, a left shield shaft; 3049B, and a right shield shaft.
Reference numerals in fig. 3 to 13 denote:
301. an integral translation drive assembly; 302. a left winding spindle module; 303. integrally translating the slide rail; 304. a shielding structure; 305. a right wind spindle module; 306. a top plate; 307. an outer frame body; 308. shearing a cutter; 309. a clamping member; 310. a probe assembly; 311. a winding shaft; 312. a temporary storage container; 313. an opening and closing motor; 314. an integral translation frame; 315 opening and closing the slide rail;
3021. a left box body B; 3022. a slide block B; 3023. a reducer gear B; 3024. winding a main shaft gear B; 3025. a left winding main shaft B; 3026. a reducer B1; 3027. a propeller shaft B1; 3028. a connecting shaft B; 3029. a propeller shaft B2; 3029A, coupling B1; 3029B, retarder B2; 3029C, coupling B2; 3029D, a telescopic rod; 3029E, coupling B3;
3051. a handle C; 3052. a winding motor C; 3053. a right box body C; 3053A, a slider C; 3054. a downward decelerator C; 3054A, reducer C1; 3054A1, coupling C; 3054A2, drive shaft C1; 3054B, a reducer gear C; 305C, a winding main shaft gear C; 3054D, drive shaft C2; 3054M, a transverse speed reducer C; 3055. a right winding main shaft C; 3056. a push rod C; 3058. pushing a plate C; 3059. a push plate connecting rod C; 3059A, drive shaft C3; 3059B, retarder C2; 3059C, a push rod motor;
3011. a translation drive motor; 3012. a shaft coupling A; 3013. a handle A; 3014. connecting the shaft A; 3015. a reducer A; 3016. the translation drives the electric cylinder A;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in figures 1 and 2 of the drawings,
fig. 1 and 2 are schematic side views of a shielding structure for removing a nuclear reactor detector assembly.
The shielding structure shown in fig. 1 and 2 is the shielding structure 304 in fig. 3.
The subsequent front and back refer to the direction toward the paper of the example and the direction away from the paper as the drawing.
A shielding structure comprising:
a left shield 3048A, a right shield 3048B, a left shield shaft 3049A, a right shield shaft 3049B; the left shield 3048A is rotationally coupled about a left shield axis 3049A and the right shield 3048B is rotationally coupled about a right shield axis 3049B; the left shielding shaft 3049A and the right shielding shaft 3049B are at the same horizontal height, and the distance between the left shielding shaft 3049A and the right shielding shaft 3049B is required to ensure that when the left shielding body 3048A rotates rightwards around the left shielding shaft 3049A and the right shielding body 3048B rotates leftwards around the right shielding shaft 3049B, the opposite surfaces of the left shielding body 3048A and the right shielding body 3048B are abutted together;
the device further comprises a driving body A in driving connection with the left shielding body 3048A and a driving body B in driving connection with the right shielding body 3048B; the device further comprises an actuator which drives and connects the driving body A or/and the driving body B.
The driving bodies a and B operate synchronously.
The driving body A comprises a left layout: a guide rail 3045, a slider 3044, a link 3047, a link shaft 3049; wherein, the left side overall arrangement does: the slider 3044 slides in the vertical direction along the guide rail, one end of the connecting rod 3047 is fixedly connected to the slider 3044, and the other end of the connecting rod 3047 is connected to the left shield 3048A via a connecting rod shaft 3049;
the driving body B includes, in a right side layout: a guide rail 3045, a slider 3044, a link 3047, a link shaft 3049; wherein, the right side overall arrangement is: the slider 3044 slides in the vertical direction along the guide rail, one end of the connecting rod 3047 is fixedly connected to the slider 3044, and the other end of the connecting rod 3047 is connected to the right shield 3048B through a connecting rod shaft 3049;
the device further comprises an actuator, wherein the actuator comprises an electric telescopic cylinder 3041 and a lifting base plate 3042, the lifting base plate 3042 is transversely arranged, a guide rail 3045 in left layout is connected with the left side of the lifting base plate 3042, and a guide rail 3045 in right layout is connected with the right side of the lifting base plate 3042; the body of the electric telescopic cylinder 3041 is fixed, and an output telescopic end of the electric telescopic cylinder 3041 is vertically connected to the lifting base plate 3042.
One end of the connecting rod 3047 is fixedly connected with the slider 3044 by a pin 3043.
The left shield 3048A and the right shield 3048B are both in the shape of a quarter semicircle, the left shield 3048A and the right shield 3048B are bilaterally symmetrical and close to each other to form a semicircle, the surfaces of the left shield 3048A and the right shield 3048B that close to each other are the surfaces where the radius is, and the surface of the left shield 3048A facing the right shield 3048B and the surface of the right shield 3048B facing the left shield 3048A are mutually configured to be stepped surfaces that can be fitted together, see the region T in fig. 1.
The actuator, the driving body a, and the driving body B constitute a driving device, and the left shielding body 3048A, the right shielding body 3048B, the left shielding shaft 3049A, and the right shielding shaft 3049B constitute a shielding device, where the driving device is located above the shielding device, and the driving device and the shielding device are arranged in a staggered manner, when the shielding device is arranged in a staggered manner, the front side where the driving device is located behind the rear sides of the left shielding body 3048A and the right shielding body 3048B, the left shielding shaft 3049A penetrates through the front side and the rear side of the left shielding body 3048A, and the right shielding shaft 3049B penetrates through the front side and the rear side of the right shielding body 3048B.
The shielding structure further comprises a bridge plate 3048, wherein the bridge plate 3048 is positioned on the rear side surfaces of the left shielding body 3048A and the right shielding body 3048B; the left shield shaft 3049A penetrates a left surface area of the left shield 3048A and a left surface area of the bridge plate 3048, and the right shield shaft 3049B penetrates a right surface area of the right shield 3048B and a right surface area of the bridge plate 3048.
As shown in fig. 1 and 2:
a shielding system, comprising:
a primary shaft translation winding mechanism for nuclear reactor detector assembly removal;
a shearing tool 308 positioned below the left shield 3048A and the right shield 3048B;
a winding shaft 311 located below the shearing cutter 308;
the detector component gripper pulls the detector component from bottom to top;
the detector assembly sequentially penetrates through the winding shaft 311, the shearing cutter 308, the left shielding body 3048A and the right shielding body 3048B from bottom to top.
As shown in fig. 1 and 2:
a method of using a shielding structure comprising the steps of:
the actuator drives the driving body a or/and the driving body B to drive the left shielding body 3048A to rotate left around the left shielding shaft 3049A and the right shielding body 3048B to rotate right around the right shielding shaft 3049B, and a gap between the left shielding body 3048A and the right shielding body 3048B is opened;
the detector assembly is lifted upwards through the detector assembly gripper, and the detector assembly to be detected penetrates through the space between the left shielding body 3048A and the right shielding body 3048B;
starting the shearing cutter 308 to shear the detector assembly;
the detector assembly which is kept between the left shield 3048A and the right shield 3048B is lifted out by the detector assembly gripping apparatus;
the actuator drives the driving body a or/and the driving body B to drive the left shielding body 3048A to rotate rightwards around the left shielding shaft 3049A, the right shielding body 3048B to rotate leftwards around the right shielding shaft 3049B, and a gap between the left shielding body 3048A and the right shielding body 3048B is closed;
the start winding shaft 311 winds the detector assembly left under the left shield 3048A and the right shield 3048B.
The detector assembly comprises a detector assembly low amplification section 310A and a detector assembly high amplification section 310B, and in S2, a certain height refers to: when the junction of the detector assembly low-level section 310A and the detector assembly high-level section 310B is located at the shearing station of the shearing tool 308, the height is regarded as reaching a preset certain height.
As can be seen from the above embodiments:
the invention provides an open-close type modularized shielding structure of a detector assembly on a lifting, shearing and winding action path, which is used for matching the lifting, shearing and winding actions, opening the detector assembly under a machine if necessary, allowing the detector assembly to pass through, and closing the detector assembly under the necessary actual condition to shield the detector assembly.
The shielding object of the invention is a detector assembly which is a structure penetrating through a reactor and similar to a lead, the structure of the shielding object is a slender structure, the part of the shielding object positioned inside the reactor is high-radioactivity, so the shielding object is called a detector assembly high-radiation section, and the part of the shielding object positioned outside the reactor is low-radioactivity, so the shielding object is called a detector assembly low-radiation section; the low-level section and the high-level section of the detector assembly need different sealing treatment, so that the low-level section and the high-level section of the detector assembly need to be cut and separated in the dismantling process; when the low-level section and the high-level section of the detector assembly are cut off, the high-level section of the detector assembly is exposed, so that high-dose radiation can be generated, and great harm is brought to operators; in order to achieve the aim of safe disassembly, the invention is provided with the open-close type modularized shielding structure.
As shown in fig. 3-13
After the shearing cutter shears the detector assembly, the detector assembly low-level section is taken away, the detector assembly high-level section is left, the shielding device is in a closed state at the moment to complete shielding, and then the winding mechanism is started to perform winding operation.
A main shaft translation winding mechanism for dismantling a nuclear reactor detector assembly,
comprises an outer frame body 307, an opening and closing slide rail 315 arranged in the outer frame body 307, a left winding main shaft module 302 and a right winding main shaft module 305 which are assembled in a sliding way along the opening and closing slide rail 315;
the device also comprises an integral translation slide rail 303 arranged in the outer frame 307 and assembled along the integral translation slide rail 303 in a sliding way;
the left winding spindle module 302 and the right winding spindle module 305 are simultaneously assembled with the integral translation frame 314 in a linkage manner; further comprising an integral translation drive assembly 301 connected to the integral translation frame 314 and controlling the integral translation drive assembly to translate along the integral translation slide 303;
and the device also comprises an opening and closing driving component which is connected with the left winding main shaft module 302 and the right winding main shaft module 305 and controls the left winding main shaft module 302 and the right winding main shaft module 305 to move along the opening and closing slide rail 315 in the opposite direction or the opposite direction.
The left winding main shaft module 302 comprises a left box body B3021, a left winding main shaft B3025 and a left linkage component B,
an extension part B is formed on the lower side surface of the left box body B3021, a left winding main shaft B3025 transversely penetrates through the extension part B,
the left linkage assembly B comprises a transverse linkage assembly B and a vertical linkage assembly B;
the vertical linkage assembly B is used for driving the left winding spindle B3025 to rotate, the horizontal linkage assembly B is linked with the power device of the right winding spindle module 305, and the horizontal linkage assembly B is linked with the vertical linkage assembly B.
The transverse linkage assembly B comprises: a coupler B33029E linked with the power device of the right winding main shaft module 305, an expansion link 3029D in transmission connection with the coupler B33029E, and a coupler B23029C in transmission connection with the expansion link 3029D;
vertical linkage subassembly B is including transmission connection in proper order: a transmission shaft B23029A, a coupling B13029, a connecting shaft B3028, a transmission shaft B13027, a speed reducer B13026, a speed reducer gear B3023 and a winding main shaft gear B3024;
a winding main shaft gear B3024 is sleeved on the left winding main shaft B3025;
the reducer B23029B is further included, the transverse end of the reducer B23029B is in transmission connection with the coupling B23029C, and the vertical end of the reducer B23029B is in transmission connection with the transmission shaft B23029A.
The right winding spindle module 305 comprises a right box body C3053, a right winding spindle C3055 and a right linkage component B;
an extension part C is formed on the lower side surface of the right box body C3053, a right winding main shaft C3055 transversely penetrates through the extension part C,
the right linkage assembly B comprises a transverse linkage assembly C, a vertical linkage assembly C and a material returning assembly C;
the vertical linkage assembly C is used for driving a right winding main shaft C3055, and the transverse linkage assembly C is used for providing power for the left winding main shaft module 302; the material returning assembly C is used for pushing the high-level section of the detector assembly wound on the right winding main shaft C3055.
Vertical linkage subassembly C is including transmission connection in proper order: a downward speed reducer C3054, a transmission shaft C23054D, a coupling C3054A 1, a transmission shaft C13054A2, a speed reducer C13054A, a speed reducer gear C3054B and a winding main shaft gear C3054C; a winding main shaft gear C3054C is sleeved on the right winding main shaft C3055;
the transverse linkage assembly C comprises a transverse speed reducer C3054M;
the winding motor C3052 is also included, and the transverse speed reducer C3054M and the downward speed reducer C3054 are linked with the winding motor C3052; the transverse speed reducer C3054M is in transmission connection with the left winding main shaft module 302 and provides power for the left winding main shaft module 302;
material returned subassembly C is including transmission connection in proper order: a push rod motor 3059C, a speed reducer C23059B, a transmission shaft C33059A, a push plate connecting rod C3059, a push plate C3058 and a push rod C3056; wherein the push plate C3058 and the push rod C3056 are sleeved on the right winding main shaft C3055; the push rod motor 3059C and the speed reducer C23059B are assembled in the right box body C3053.
The drive assembly that opens and shuts includes: the 1-in 2-out speed reducer and the opening and closing motor 313 are arranged, 1 power input part of the 1-in 2-out speed reducer is in transmission connection with the opening and closing motor 313, 2 power output parts of the 1-in 2-out speed reducer are respectively connected with 2 telescopic structures, wherein 1 telescopic structure is in transmission connection with the left winding main shaft module 302, and the other 1 telescopic structure is in transmission connection with the right winding main shaft module 305.
Integral translation drive assembly 301 includes in proper order the transmission connection: a translation drive motor 3011, a coupling a3012, a reduction gear a3015, a translation drive electric cylinder a3016, and a translation drive electric cylinder a3016 are mounted on the outer frame 307, and the telescopic end of the translation drive electric cylinder a3016 is connected to the entire translation frame 314.
The left winding main shaft module 302 comprises a left box body B3021, a left winding main shaft B3025 and a left linkage component B,
an extension part B is formed on the lower side surface of the left box body B3021, a left winding main shaft B3025 transversely penetrates through the extension part B,
the left linkage assembly B comprises a transverse linkage assembly B and a vertical linkage assembly B;
the vertical linkage assembly B is used for driving the left winding main shaft B3025 to rotate, and the transverse linkage assembly B is linked with the vertical linkage assembly B;
the right winding spindle module 305 comprises a right box body C3053, a right winding spindle C3055 and a right linkage component B;
an extension part C is formed on the lower side surface of the right box body C3053, a right winding main shaft C3055 transversely penetrates through the extension part C,
the right linkage assembly B comprises a transverse linkage assembly C, a vertical linkage assembly C and a material returning assembly C;
the vertical linkage assembly C is used for driving a right winding main shaft C3055, and the material returning assembly C is used for pushing a high-level section of the detector assembly wound on the right winding main shaft C3055;
the transverse linkage component B is in transmission connection with the transverse linkage component C; the left winding main shaft B3025 and the right winding main shaft C3055 are coaxially arranged.
Based on the use method of the main shaft translation winding mechanism for dismantling the nuclear reactor detector assembly,
when the left winding spindle module 302 and the right winding spindle module 305 are folded in place, the following steps are performed:
s1, the winding motor C3052 in the right winding spindle module 305 is started, the left winding spindle B3025 of the left winding spindle module 302 and the right winding spindle C3055 of the right winding spindle module 305 start rotating synchronously, and after one rotation of the left winding spindle B3025 and the right winding spindle C3055, the process goes to step S2,
s2, starting the integral translation driving component 301 to drive the integral translation frame 314, wherein the integral translation frame 314 drives the left winding spindle module 302 and the right winding spindle module 305 to integrally translate for a distance equal to the diameter of the detector component;
s3, repeating S1 and S2 for multiple times until the high-level section of the detector assembly is wound, and turning to the step S4;
s4, starting the integral translation driving assembly 301 to drive the integral translation frame 314, the integral translation frame 314 driving the left winding spindle module 302 and the right winding spindle module 305 to integrally translate so that the left winding spindle module 302 and the right winding spindle module 305 translate from the winding position to the release position, and then, turning to S5;
s5, the open/close driving component is started to make the winding motor C3052 in the right winding spindle module 305 move reversely, then turns S6,
s6, the material returning assembly C of the right winding spindle module 305 is activated to push the winding so that the winding is disengaged from the right winding spindle module 305 of the right winding spindle module 305 and falls into the temporary storage container 312.
And S3, finishing four-layer winding until the high-amplification section of the detector assembly is arranged.
The left winding spindle module 302 and the right winding spindle module 305 are synchronously driven to move oppositely or reversely by the opening and closing driving component, so that the clamping and the releasing of the detector components (a low-level section and a high-level section) are realized; the winding motor in the right winding main shaft module 305 is used for driving the left winding main shaft B3025 and the right winding main shaft C3055 to rotate at the same time, so that the winding of the high-level section of the detector assembly is realized; the integral translation driving assembly 301 simultaneously drives the left winding spindle module 302 and the right winding spindle module 305 to move in the same direction, so as to complete two functions: in the winding process, the left winding main shaft B3025 and the right winding main shaft C3055 simultaneously translate a specified distance (equal to the diameter of the detector assembly high-level section) every turn, so that the detector assembly high-level section becomes uniform and regular winding. ② transferring the winding from the winding position to the releasing position after the winding is completed.
All work can be done underwater.
The invention adopts an automatic mode and provides a manual operation mode in an emergency state, and the invention provides a handle C3051 and a handle A3013, wherein the handle C3051 is transmitted with a downward speed reducer C and is used as a backup power of a winding motor C, and the handle A3013 is transmitted with a speed reducer A3015 and is used as a backup power of a translation driving motor.
The main entity of the spindle translation winding mechanism for dismantling the nuclear reactor detector assembly comprises an integral translation driving assembly 301, a left winding spindle module, a right winding spindle module and the like.
The integral translation driving assembly 301 is used for completing integral translation of the whole winding mechanism from a winding position to a releasing winding position and moving a distance of a radial size of a detector assembly along the horizontal direction every turn of a winding main shaft in the winding process, and a translation driving motor in the integral translation driving assembly 301 drives a translation driving electric cylinder A through a speed reducer A to complete the action that the integral translation frame 314 moves left and right on a guide rail. Handle A3013 and reduction gear A (3015) transmission, as the translation drive electronic jar A manual operation supplementary means when failing, guarantee under the unexpected circumstances of failing of translation drive electronic jar A, drive translation system through the manual rotation hand wheel to compromise manual mode.
The left winding main shaft module and the right winding main shaft module are both arranged on the integral translation frame 314 and can move together with the integral translation frame 314, and in the winding process, each circle of rotation of the left winding main shaft B3025 and the right winding main shaft C3055 drives the integral mechanism to translate a distance of the diameter of the high-level section of the detector assembly by controlling coupling, so that the detector assemblies are arranged orderly and reciprocate twice and are wound for 4 layers; after winding is completed, the translation of the winding position to the winding release position is then completed.
The left winding spindle module and the right winding spindle module can move in opposite directions or opposite directions simultaneously under the driving of an opening and closing motor, the opening and closing motor is connected with two outputs of 1-in 2-out speed reducer, the left side of the 1-in 2-out speed reducer is connected with an electric cylinder (telescopic device), the left side box body B of the left winding spindle module translates on a guide rail, the right side of the 1-in 2-out speed reducer is connected with an electric cylinder (telescopic device), the right side box body C of the right winding spindle module translates on the guide rail, the output directions of the two sides of the 1-in 2-out speed reducer move in opposite directions or opposite directions, and the left winding spindle module and the right winding spindle module can move in opposite directions or opposite.
The winding motor C is connected with a speed reducer C (a downward speed reducer C and a transverse speed reducer C), two paths of outputs of the speed reducer C (the downward speed reducer C and the transverse speed reducer C) respectively transmit winding motion to the left winding main shaft and the right winding main shaft, and the two are completely synchronous, so that the left winding module and the right winding module can rotate simultaneously when being folded, and a winding function is realized. The handle C is connected with the speed reducer C, and manual winding under the condition of motor failure can be realized.
And a winding motor C of the right winding spindle module is positioned above the right box body and provides power for winding of the left winding spindle module and the right winding spindle module. The right winding spindle module has the following main structure: the right box body is a bearing main body of the whole right winding main shaft module, and two sliding blocks C3053A are arranged on two sides of the right box body and used for moving on the guide rail; the winding motor outputs power to the right winding spindle C and the left winding spindle B through the two output speed reducers and the transmission chain of the left winding spindle module to realize rotation;
the function of the left winding spindle module is similar to that of the right winding spindle module, the translational motion direction is opposite, and the rotation direction is the same.
Meanwhile, a push rod is arranged on the right winding main shaft to limit the winding to be incapable of moving right along with the right winding main shaft, separating from the right winding main shaft and falling to a storage position to complete the release of the winding.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A main shaft translation winding mechanism for dismantling a nuclear reactor detector assembly is characterized in that,
comprises an outer frame body (307), an opening and closing slide rail (315) arranged in the outer frame body (307), a left winding main shaft module (302) and a right winding main shaft module (305) which are assembled in a sliding way along the opening and closing slide rail (315);
the device also comprises an integral translation sliding rail (303) arranged in the outer frame body (307), and an integral translation frame (314) assembled along the integral translation sliding rail (303) in a sliding way;
the left winding spindle module (302) and the right winding spindle module (305) are simultaneously assembled with the integral translation frame (314) in a linkage manner; the integral translation device also comprises an integral translation driving component (301) which is connected with the integral translation frame (314) and controls the integral translation driving component to translate along the integral translation sliding rail (303);
the winding mechanism further comprises an opening and closing driving assembly which is connected with the left winding spindle module (302) and the right winding spindle module (305) and controls the left winding spindle module (302) and the right winding spindle module (305) to move along the opening and closing slide rail (315) in opposite directions or in opposite directions.
2. The nuclear reactor detector assembly removal spindle translation winding mechanism of claim 1,
the left winding main shaft module (302) comprises a left box body B (3021), a left winding main shaft B (3025) and a left linkage component B,
an extension part B is formed on the lower side surface of the left box body B (3021), a left winding main shaft B (3025) transversely penetrates through the extension part B,
the left linkage assembly B comprises a transverse linkage assembly B and a vertical linkage assembly B;
the vertical linkage assembly B is used for driving the left winding spindle B (3025) to rotate, the horizontal linkage assembly B is linked with a power device of the right winding spindle module (305), and the horizontal linkage assembly B is linked with the vertical linkage assembly B.
3. The nuclear reactor detector assembly removal spindle translation winding mechanism of claim 2,
the transverse linkage assembly B comprises: a coupler B3(3029E) linked with the power device of the right winding main shaft module (305), a telescopic rod (3029D) in transmission connection with the coupler B3(3029E), and a coupler B2(3029C) in transmission connection with the telescopic rod (3029D);
vertical linkage subassembly B is including transmission connection in proper order: a transmission shaft B2(3029A), a coupling B1(3029), a connecting shaft B (3028), a transmission shaft B1(3027), a reducer B1(3026), a reducer gear B (3023), and a winding main shaft gear B (3024);
a winding main shaft gear B (3024) is sleeved on the left winding main shaft B (3025);
the reducer B2(3029B) is further included, the transverse end of the reducer B2(3029B) is in transmission connection with the coupler B2(3029C), and the vertical end of the reducer B2(3029B) is in transmission connection with the transmission shaft B2 (3029A).
4. The nuclear reactor detector assembly removal spindle translation winding mechanism of claim 1,
the right winding spindle module (305) comprises a right box body C (3053), a right winding spindle C (3055) and a right linkage component B;
an extension part C is formed on the lower side surface of the right box body C (3053), a right winding main shaft C (3055) transversely penetrates through the extension part C,
the right linkage assembly B comprises a transverse linkage assembly C, a vertical linkage assembly C and a material returning assembly C;
the vertical linkage assembly C is used for driving a right winding spindle C (3055), and the transverse linkage assembly C is used for providing power for the left winding spindle module (302); the material returning assembly C is used for pushing the detector assembly high-level section wound on the right winding main shaft C (3055).
5. The nuclear reactor detector assembly removal spindle translation winding mechanism of claim 4,
vertical linkage subassembly C is including transmission connection in proper order: a downward speed reducer C (3054), a transmission shaft C2(3054D), a coupling C (3054A1), a transmission shaft C1(3054A2), a speed reducer C1(3054A), a speed reducer gear C (3054B) and a winding main shaft gear C (3054C); a winding main shaft gear C (3054C) is sleeved on the right winding main shaft C (3055);
the lateral linkage assembly C includes a lateral retarder C (3054M);
the winding motor C (3052) is linked with the transverse speed reducer C (3054M) and the downward speed reducer C (3054); the transverse speed reducer C (3054M) is in transmission connection with the left winding main shaft module (302) and provides power for the left winding main shaft module (302);
material returned subassembly C is including transmission connection in proper order: a push rod motor (3059C), a speed reducer C2(3059B), a transmission shaft C3(3059A), a push plate connecting rod C (3059), a push plate C (3058) and a push rod C (3056); wherein the push plate C (3058) and the push rod C (3056) are sleeved on the right winding main shaft C (3055); the push rod motor (3059C) and the speed reducer C2(3059B) are assembled in the right box body C (3053).
6. The nuclear reactor detector assembly removal primary shaft translating and winding mechanism of any one of claims 1-5,
the drive assembly that opens and shuts includes: 1 goes into 2 and goes out reduction gear, motor that opens and shuts (313), 1 power input part that 1 goes into 2 and goes out the reduction gear is connected with motor that opens and shuts (313) transmission, 2 power output parts that 1 goes into 2 and goes out the reduction gear connect respectively in 2 extending structure, wherein 1 extending structure transmission is connected in left side and is rolled up main shaft module (302), 1 extending structure transmission is connected in right side and is rolled up main shaft module (305) in addition.
7. The nuclear reactor detector assembly removal primary shaft translating and winding mechanism of any one of claims 1-5,
the integral translation driving component (301) comprises a transmission component which is connected in sequence: translation actuating motor (3011), shaft coupling A (3012), reduction gear A (3015), translation drive electronic cylinder A (3016) assemble in outer frame (307), and the flexible end of translation drive electronic cylinder A (3016) connects in whole translation frame (314).
8. The nuclear reactor detector assembly removal spindle translation winding mechanism of claim 1,
the left winding main shaft module (302) comprises a left box body B (3021), a left winding main shaft B (3025) and a left linkage component B,
an extension part B is formed on the lower side surface of the left box body B (3021), a left winding main shaft B (3025) transversely penetrates through the extension part B,
the left linkage assembly B comprises a transverse linkage assembly B and a vertical linkage assembly B;
the vertical linkage assembly B is used for driving a left winding main shaft B (3025) to rotate, and the transverse linkage assembly B is linked with the vertical linkage assembly B;
the right winding spindle module (305) comprises a right box body C (3053), a right winding spindle C (3055) and a right linkage component B;
an extension part C is formed on the lower side surface of the right box body C (3053), a right winding main shaft C (3055) transversely penetrates through the extension part C,
the right linkage assembly B comprises a transverse linkage assembly C, a vertical linkage assembly C and a material returning assembly C;
the vertical linkage assembly C is used for driving a right winding main shaft C (3055), and the material returning assembly C is used for pushing the high-level section of the detector assembly wound on the right winding main shaft C (3055);
the transverse linkage component B is in transmission connection with the transverse linkage component C; the left winding main shaft B (3025) and the right winding main shaft C (3055) are coaxially arranged.
9. Use of a nuclear reactor detector assembly removal spindle translation winding mechanism in accordance with any one of claims 1 to 8,
when the left winding spindle module (302) and the right winding spindle module (305) are folded in place, the following steps are executed:
s1, the winding motor C (3052) in the right winding spindle module (305) is started, the left winding spindle B (3025) of the left winding spindle module (302) and the right winding spindle C (3055) of the right winding spindle module (305) start to synchronously rotate, and after each synchronous winding of the left winding spindle B (3025) and the right winding spindle C (3055) is rotated for one turn, the step S2 is executed,
s2, starting the integral translation driving assembly (301) to drive the integral translation frame (314), wherein the integral translation frame (314) drives the left winding spindle module (302) and the right winding spindle module (305) to integrally translate for a distance equal to the diameter of the detector assembly;
s3, repeating S1 and S2 for multiple times until the high-level section of the detector assembly is wound, and turning to the step S4;
s4, starting the integral translation driving assembly (301) to drive the integral translation frame (314), wherein the integral translation frame (314) drives the left winding spindle module (302) and the right winding spindle module (305) to integrally translate so that the left winding spindle module (302) and the right winding spindle module (305) translate from the winding position to the release position, and then, the step S5 is executed;
s5, starting the open-close driving component to make the winding motor C (3052) in the right winding spindle module (305) move reversely, then turning S6,
and S6, starting the material returning component C of the right winding spindle module (305), and enabling the material returning component C to push the winding to enable the winding to be separated from the right winding spindle module (305) of the right winding spindle module (305) and fall into the temporary storage container (312).
10. The use according to claim 9,
and S3, finishing four-layer winding until the high-amplification section of the detector assembly is arranged.
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| CN112201375B (en) | 2022-02-11 |
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