Recovery system and method for nuclear reactor detector assembly

Abstract

The invention relates to a nuclear reactor detector assembly recycling system and method.The nuclear reactor detector assembly recycling system comprises a rack and a coiling unit, the coiling unit is arranged on the rack, the coiling unit comprises a coiling assembly and a pressing assembly, the coiling assembly comprises a reel, the reel is provided with a clamping groove used for being connected to a detector assembly in a clamped mode, and the pressing assembly is arranged on the rack; the reel is configured to rotate so that the detector assembly clamped by the clamping groove can be curled on the reel, and the pressing assembly is used for enabling the detector assembly curled on the reel to be attached to the reel. The coiling unit is installed on the rack, the clamping groove is formed in the reel of the coiling assembly, the detector assembly can be clamped in the clamping groove in the reel, then the reel is rotated, the detector assembly can be coiled on the reel, the detector assembly and the reel are pressed through the pressing assembly, the detector assembly is attached to the reel, and therefore the detector assembly can be coiled on the detector assembly. The size of the curled detector assembly is further reduced, and the detector assembly is convenient to store and accommodate.

Description

Technical Field

[0001] The present application relates to the field of nuclear reactor technology, and in particular to a nuclear reactor detector component recovery system and method. Background Art

[0002] In the field of nuclear reactor technology, detector assemblies are used to measure neutron flux, temperature and water level during the operation of nuclear reactors. During operation, the detector assembly is directly inserted into the middle of the nuclear fuel in the core. Affected by the radioactive environment of the nuclear fuel, the detector assembly itself becomes activated, so the radiation dose rate is very high when the detector assembly is removed.

[0003] The detector assembly of the existing reactor type is inserted from the top of the reactor. The detector assembly runs from the outside of the reactor top cover to the nuclear fuel assembly. The detector assembly is about 12 meters long and has a total of 46 pieces. It measures different areas and monitors the core status online in real time during operation. Each detector assembly is long, but only 7.5mm in diameter. The overall storage size is large and difficult to directly recycle and store. Summary of the invention

[0004] Based on this, it is necessary to provide a nuclear reactor detector assembly recovery system and method to address the problem of storing detector assemblies.

[0005] A nuclear reactor detector assembly recovery system, the nuclear reactor detector assembly recovery system comprising:

[0006] frame;

[0007] A winding unit is arranged on the frame, and the winding unit includes a winding assembly and a clamping assembly. The winding assembly includes a reel, and the reel is provided with a slot for clamping on the detector assembly. The reel is configured to rotate so that the detector assembly clamped in the slot is curled on the reel, and the clamping assembly is used to make the detector assembly curled on the reel fit the reel.

[0008] In one embodiment, the coil unit includes a reciprocating mounting plate that slides with the frame, and the coil assembly is arranged on the reciprocating mounting plate. The reciprocating mounting plate can slide along a second direction relative to the frame to drive the coil assembly to move along the second direction, wherein the second direction is parallel to the axial direction of the reel.

[0009] In one embodiment, the coiling unit also includes a lifting mounting plate that slides with the frame, the reciprocating mounting plate is connected to the lifting mounting plate and slides with the lifting mounting plate, the clamping assembly is connected to the lifting mounting plate, and the lifting mounting plate can slide along a first direction relative to the frame to drive the coiling assembly and the clamping assembly to move along the first direction, wherein the first direction is the height direction of the frame, and the first direction is set at an angle to the second direction.

[0010] In one embodiment, the winding unit also includes an ejection assembly arranged on the reciprocating mounting plate, the ejection assembly includes a connected pushing drive member and a accommodating member, the accommodating member has an accommodating cavity for accommodating the reel, and the pushing drive member can push the accommodating member to move along the second direction away from the reel, so that the detector assembly wound on the reel moves in a direction away from the reel.

[0011] In one of the embodiments, the clamping assembly includes a clamping roller and a clamping drive member connected to each other, and the clamping drive member can drive the clamping roller to move so as to fit the reel or the detector assembly wound on the reel.

[0012] In one of the embodiments, the coiling unit further comprises a clamping assembly, wherein the clamping assembly is connected to the frame and is used to clamp the detector assembly.

[0013] In one embodiment, the clamping assembly includes a clamping drive, a first clamping roller and a second clamping roller, the clamping drive and the first clamping roller are arranged on the frame, the output end of the clamping drive is connected to the second clamping roller, and the clamping drive can drive the second clamping roller to move closer to or away from the first clamping roller to clamp or release the detector assembly.

[0014] In one of the embodiments, it further includes a hoisting unit disposed on the frame;

[0015] The hoisting unit includes a drum, a connecting rope and a fixed pulley assembly, one end of the connecting rope is wound around the drum, and the other end passes through the fixed pulley assembly and is connected to the winding unit, and the drum is configured to rotate so that the connecting rope drives the winding unit to move.

[0016] The present application also provides a method for recovering a nuclear reactor detector assembly, using any of the above-mentioned nuclear reactor detector assembly recovery systems, the method for recovering a nuclear reactor detector assembly comprising:

[0017] Inserting the end of the detector assembly into the slot on the reel;

[0018] rotating the reel to wind the detector assembly onto the reel;

[0019] The pressing assembly is attached to the detector assembly on the reel to press the detector assembly onto the reel.

[0020] In one of the embodiments, while the reel rotates, the reciprocating mounting plate moves along the second direction to drive the reel to move along the second direction.

[0021] The above-mentioned nuclear reactor detector assembly recovery system installs the winding unit on the frame, and a card slot is provided on the reel of the winding assembly. The detector assembly can be connected to the card slot on the reel, and then the reel is rotated to make the detector assembly curled on the reel, and then the clamping assembly is used to clamp the detector assembly and the reel to make the detector assembly fit to the reel, further reducing the volume of the curled detector assembly and facilitating the storage and accommodation of the detector assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of the nuclear reactor detector assembly recovery system provided in this application from a first perspective.

[0023] Figure 2 A schematic structural diagram of a nuclear reactor detector assembly recovery system provided in this application from a second perspective.

[0024] Figure 3 This is a schematic structural diagram of the coil unit provided in this application from a first perspective.

[0025] Figure 4 This is a schematic structural diagram of the coil unit provided in the present application from a second perspective.

[0026] Figure 5 A schematic diagram of the structure in which the coil unit provided in the present application is installed on a second support frame.

[0027] Figure 6 This is a schematic diagram of the structure of the winch unit provided in this application.

[0028] In the figure:

[0029] 100, frame; 110, first support frame; 120, second support frame;

[0030] 200, hoisting unit; 210, reel; 220, fixed pulley assembly; 230, lifting drive member; 240, lifting reducer; 250, lifting brake; 260, encoder; 270, force sensor; 280, base;

[0031] 300, coil unit; 310, reciprocating mounting plate; 320, lifting mounting plate; 330, first limit switch; 340, second limit switch; 350, reciprocating slider; 360, reciprocating drive member; 370, reciprocating reducer; 380, lifting slider;

[0032] 400, coil assembly; 410, reel; 420, coil drive; 430, coil reducer;

[0033] 500, clamping assembly; 510, clamping driving member; 520, clamping roller; 530, clamping slider; 540, clamping slide rail;

[0034] 600, ejection assembly; 610, driving member; 620, receiving member; 621, side baffle; 622, connecting plate;

[0035] 700, clamping assembly; 710, clamping drive member; 720, first clamping roller; 730, second clamping roller;

[0036] 800. Drag chain. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0043] The present application provides a nuclear reactor detector component recovery system, such as Figures 1 to 6As shown, the nuclear reactor detector assembly recovery system includes a frame 100 and a coil unit 300, the coil unit 300 is arranged on the frame 100, the coil unit 300 includes a coil assembly 400 and a clamping assembly 500, the coil assembly 400 includes a reel 410, the reel 410 is provided with a slot for being clamped to the detector assembly, the reel 410 is configured to rotate so that the detector assembly clamped in the slot is curled on the reel 410, and the clamping assembly 500 is used to make the detector assembly curled on the reel 410 fit to the reel 410.

[0044] The above-mentioned nuclear reactor detector assembly recovery system installs the winding unit 300 on the frame 100, and a card slot is provided on the reel 410 of the winding assembly 400. The detector assembly can be connected to the card slot on the reel 410, and then the reel 410 is rotated to make the detector assembly curled on the reel 410, and then the clamping assembly 500 is used to compress the detector assembly and the reel 410 so that the detector assembly fits the reel 410, thereby further reducing the volume of the curled detector assembly and facilitating the storage and accommodation of the detector assembly.

[0045] Specifically, Figures 3 to 5 As shown, the coil unit 300 includes a reciprocating mounting plate 310 that is slidably matched with the frame 100, and the coil assembly 400 is arranged on the reciprocating mounting plate 310. The reciprocating mounting plate 310 can slide relative to the frame 100 along the second direction to drive the coil assembly 400 to move along the second direction, wherein the second direction is parallel to the axial direction of the reel 410. By providing the reciprocating mounting plate 310, the coil assembly 400 is connected to the frame 100 through the reciprocating mounting plate 310, and the reciprocating mounting plate 310 moves along the second direction, thereby driving the coil assembly 400 as a whole to move along the second direction, that is, the reel 410 moves along the second direction, thereby adjusting the relative position of the reel 410 and the detector assembly, so as to facilitate the detector assembly to be wound on the reel 410.

[0046] It should be noted that the detector assembly is spirally wound on the reel 410 .

[0047] It is understandable that, while the reel 410 rotates, it moves along the second direction through the reciprocating mounting plate 310, thereby driving the reel 410 to move along the second direction.

[0048] Specifically, Figures 3 to 5As shown, the coil unit 300 also includes a lifting mounting plate 320 that is slidably matched with the frame 100, the reciprocating mounting plate 310 is connected to the lifting mounting plate 320 and is slidably matched with the lifting mounting plate 320, and the clamping assembly 500 is connected to the lifting mounting plate 320, and the lifting mounting plate 320 can slide relative to the frame 100 along a first direction to drive the coil assembly 400 and the clamping assembly 500 to move along the first direction, wherein the first direction is the height direction of the frame 100, and the first direction is set at an angle to the second direction. The lifting mounting plate 320 is connected to the frame 100, and the reciprocating mounting plate 310 and the clamping assembly 500 are both set on the lifting mounting plate 320, that is, the reciprocating mounting plate 310 is slidably matched with the lifting mounting plate 320 and the frame 100, and the lifting mounting plate 320 can move relative to the frame 100 along the first direction, thereby driving the coil unit 300 as a whole to move along the first direction.

[0049] It should be noted that, in this embodiment, the first direction is perpendicular to the second direction. In other embodiments, the angle between the first direction and the second direction is an obtuse angle or an acute angle.

[0050] Specifically, if Figures 3 to 5 As shown, the frame 100 includes a first support frame 110 and a second support frame 120 which are connected and arranged at an angle, and the lifting mounting plate 320 is connected to the second support frame 120 and slidably cooperates with the second support frame 120 .

[0051] More specifically, if Figures 3 to 5 As shown, the coil unit 300 also includes a lifting slider 380 and a lifting rail that are slidably matched, the lifting rail extends along the first direction, one of the lifting slider 380 and the lifting rail is connected to the second support frame 120, and the other is connected to the lifting mounting plate 320.

[0052] In this embodiment, the lifting rail is connected to the second support frame 120, and the lifting slider 380 is connected to the lifting mounting plate 320. In other embodiments, the lifting slider 380 is connected to the second support frame 120, and the lifting rail is connected to the lifting mounting plate 320.

[0053] Specifically, if Figures 3 to 5 As shown, the coil unit 300 also includes a connected reciprocating drive member 360 and a reciprocating reducer 370, both of which are arranged on the lifting mounting plate 320, and the output end of the reciprocating reducer 370 is connected to the reciprocating mounting plate 310, and the reciprocating mounting plate 310 is driven by the reciprocating drive member 360 and the reciprocating reducer 370 to move along the second direction relative to the lifting mounting plate 320.

[0054] More specifically, if Figures 3 to 5As shown, the output end of the reciprocating reducer 370 is connected to the reciprocating mounting plate 310 through a screw structure. In other embodiments, the output end of the reciprocating reducer 370 is connected to the reciprocating mounting plate 310 through other connecting structures, as long as the reciprocating mounting plate 310 can be driven to achieve linear motion.

[0055] More specifically, in this embodiment, the reciprocating driving member 360 is a motor, and in other embodiments, the reciprocating driving member 360 is a structure such as a cylinder or a push rod.

[0056] Specifically, if Figures 3 to 5 As shown, a reciprocating rail and a reciprocating slider 350 are provided between the reciprocating mounting plate 310 and the lifting mounting plate 320. The reciprocating rail extends along the second direction. One of the reciprocating rail and the reciprocating slider 350 is connected to the reciprocating mounting plate 310, and the other is connected to the lifting mounting plate 320. By providing the reciprocating rail and the reciprocating slider 350, the sliding direction of the reciprocating mounting plate 310 is further limited so that it can only slide along the second direction.

[0057] More specifically, in this embodiment, the reciprocating rail is connected to the reciprocating mounting plate 310, and the reciprocating slider 350 is connected to the lifting mounting plate 320. In other embodiments, the reciprocating slider 350 is connected to the reciprocating mounting plate 310, and the reciprocating rail is connected to the lifting mounting plate 320.

[0058] Specifically, the nuclear reactor detector assembly recovery system also includes a controller, and the reciprocating drive member 360 is communicatively connected to the controller, and the start and stop of the reciprocating drive member 360 is controlled by the controller.

[0059] Specifically, if Figures 3 to 5 As shown, the lifting mounting plate 320 is provided with a first limit switch 330 and a second limit switch 340 arranged along the second direction, and the first limit switch 330 and the second limit switch 340 are used to detect the moving distance of the reciprocating mounting plate 310 along the second direction. The first limit switch 330 and the second limit switch 340 are both connected to the controller for communication. When the reciprocating mounting plate 310 moves along the second direction to the detection area of ​​the first limit switch 330 or the second limit switch 340, the first limit switch 330 or the second limit switch 340 sends a position signal to the controller, and the controller controls the reciprocating drive member 360 to stop, thereby limiting the further movement of the reciprocating mounting plate 310.

[0060] Specifically, if Figures 3 to 5 As shown, the coil assembly 400 includes a coil drive 420 and a coil reducer 430 connected to each other. The coil drive 420 and the coil reducer 430 are both disposed on the reciprocating mounting plate 310 , and the output end of the coil reducer 430 is connected to the reel 410 .

[0061] More specifically, the reel drive 420 is a motor and is communicatively connected to the controller.

[0062] Specifically, if Figures 3 to 5 As shown, the pressing assembly 500 includes a pressing roller 520 and a pressing driving member 510 connected to each other, and the pressing driving member 510 can drive the pressing roller 520 to move so as to fit the reel 410 or the detector assembly wound on the reel 410. When the detector assembly on the reel 410 needs to be pressed, the pressing driving member 510 drives the pressing roller 520 to move, so that the pressing roller 520 fits the reel 410 or the detector assembly wound on the reel 410, thereby pressing the reel 410 and the detector assembly.

[0063] More specifically, the clamping drive 510 is a cylinder, which is in communication with the controller.

[0064] More specifically, if Figures 3 to 5 As shown, the clamping assembly 500 further includes a clamping rail 540 and a clamping slider 530 that are slidably matched, the clamping rail 540 extends along the third direction, one of the clamping rail 540 and the clamping slider 530 is connected to the clamping roller 520, and the other is connected to the output end of the clamping drive 510, wherein the third direction, the second direction and the first direction are perpendicular to each other. By providing the clamping rail 540 and the clamping slider 530, the movement direction of the clamping roller 520 is limited, so that the clamping roller 520 can only slide along the third direction, thereby fitting the reel 410 or the detector assembly wound on the reel 410.

[0065] Specifically, if Figures 3 to 5 As shown, the coiling unit 300 further includes a push-out assembly 600 disposed on the reciprocating mounting plate 310, and the push-out assembly 600 includes a push-driving member 610 and a receiving member 620 connected to each other, and the receiving member 620 has a receiving cavity for receiving the reel 410, and the push-driving member 610 can push the receiving member 620 to move in a second direction away from the reel 410, so as to move the detector assembly wound on the reel 410 away from the reel 410. By providing the push-out assembly 600, because the reel 410 is disposed in the receiving cavity of the receiving member 620, when the detector assembly is completely wound on the reel 410, that is, when the detector assembly is completely disposed in the receiving cavity, the pushing member 610 pushes the receiving member 620 to move in the second direction away from the reel 410, thereby driving the detector assembly wound on the reel 410 to move in a direction away from the reel 410, so as to facilitate the removal of the coiled detector assembly.

[0066] More specifically, if Figures 3 to 5 As shown, the push driving member 610 is disposed on the reciprocating mounting plate 310 , and the push driving member 610 is a cylinder and is in communication connection with the controller.

[0067] More specifically, if Figures 3 to 5 As shown, the accommodating member 620 includes two oppositely arranged side baffles 621, and a connecting plate 622 connecting the two side baffles 621. The two side baffles 621 and the connecting plate 622 are arranged to form an accommodating cavity. The output end of the driving member 610 is connected to the connecting plate 622, and the output end of the winding reducer 430 passes through the side baffles 621 and extends into the accommodating cavity and is connected to the reel 410.

[0068] More specifically, if Figures 3 to 5 As shown, among the two side baffles 621, one of the side baffles 621 is provided with a first through hole for the output end of the coil reducer 430 to pass through, and the other side baffle 621 is provided with a second through hole, the size of the second through hole is equal to the size of the reel 410, and the detector assembly wound on the reel 410 can abut against the side plate.

[0069] More specifically, if Figures 3 to 5 As shown, the two side baffles 621 are arranged at intervals along the second direction, and the connecting plate 622 is arranged between the side baffles 621 and the reciprocating mounting plate 310 to connect the bottom surface of the accommodating cavity with the outside world. When the driving member 610 pushes the accommodating member 620 to move along the second direction away from the reel 410, the coil detector assembly in the accommodating cavity can fall under the action of gravity.

[0070] More specifically, if Figures 3 to 5 As shown, the connecting plate 622, the reel 410 and the pressing roller 520 are arranged at intervals along the third direction.

[0071] Specifically, if Figures 3 to 5 As shown, the coiling unit 300 further includes a clamping assembly 700, which is connected to the frame 100 and is used to clamp the detector assembly. By providing the clamping assembly 700, the clamping assembly 700 clamps the detector assembly, so that the detector assembly between the reel 410 and the clamping assembly 700 can be in a straightened state, which is convenient for winding the detector assembly.

[0072] It should be noted that the detector assembly is sent to the slot of the slot by using the clamping system, so that the end of the detector assembly is clamped in the slot of the reel 410, and then the detector assembly is clamped by the clamping assembly 700.

[0073] More specifically, if Figures 3 to 5 As shown, the reel 410 and the clamping parts of the clamping assembly 700 are arranged at intervals along the first direction, and the first direction is the height direction of the frame 100 , that is, the first direction is the height direction of the second support frame 120 .

[0074] More specifically, if Figures 3 to 5As shown, the clamping assembly 700 includes a clamping drive 710, a first clamping roller 720 and a second clamping roller 730. The clamping drive 710 and the first clamping roller 720 are arranged on the frame 100. The output end of the clamping drive 710 is connected to the second clamping roller 730. The clamping drive 710 can drive the second clamping roller 730 to move close to or away from the first clamping roller 720 to clamp or release the detector assembly. By arranging the clamping drive 710, the output end of the clamping drive 710 is connected to the second clamping roller. When the detector assembly needs to be clamped, the clamping drive 710 drives the second clamping roller 730 to move in a direction close to the first clamping roller 720, thereby clamping the detector assembly between the first clamping roller 720 and the second clamping roller 730. When the detector assembly needs to be released, the clamping driving member 710 drives the second clamping roller 730 to move in a direction away from the first clamping roller 720 , thereby releasing the detector assembly between the first clamping roller 720 and the second clamping roller 730 .

[0075] More specifically, if Figures 3 to 5 As shown, the clamping drive 710 is a cylinder and is in communication with the controller.

[0076] More specifically, if Figures 3 to 5 As shown, the first clamping roller 720 and the second clamping roller 730 constitute a clamping portion of the clamping assembly 700 .

[0077] More specifically, if Figures 3 to 5 As shown, the first clamping roller 720 and the second clamping roller 730 are arranged at intervals along the second direction.

[0078] Specifically, if Figure 1 and Figure 2 As shown, a drag chain 800 is disposed on the second support frame 120 of the rack 100 , and the drag chain 800 is used to accommodate the data cable of the reel unit 300 .

[0079] Furthermore, if Figure 1 , Figure 2 as well as Figure 6 As shown, in order to realize the movement of the coiling unit 300 as a whole along the first direction, the nuclear reactor detector assembly recovery system further includes a hoisting unit 200 disposed on the frame 100; the hoisting unit 200 includes a drum 210, a connecting rope and a fixed pulley assembly 220, one end of the connecting rope is wound on the drum 210, and the other end passes through the fixed pulley assembly 220 and is connected to the coiling unit 300, and the drum 210 is configured to rotate so that the connecting rope drives the coiling unit 300 to move. The connecting rope is used to connect the drum 210 and the lifting mounting plate 320 of the coiling unit 300. When the coiling unit 300 and the coiled detector assembly need to move along the first direction, the drum 210 is rotated so that the connecting rope drives the coiling unit 300 to move as a whole along the first direction through the fixed pulley assembly 220.

[0080] Specifically, Figure 1 , Figure 2 as well as Figure 6 As shown, the hoisting unit 200 further includes a base 280 , the drum 210 is disposed on the base 280 , the base 280 is disposed on the first support frame 110 of the frame 100 , and the fixed pulley assembly 220 is disposed at the connection between the first support frame 110 and the second support frame 120 .

[0081] Specifically, Figure 1 , Figure 2 as well as Figure 6 As shown, the hoisting unit 200 also includes a lifting drive 230 and a lifting reducer 240 connected to each other. The lifting drive 230 and the lifting reducer 240 are arranged on the base 280, and the output end of the lifting reducer 240 is connected to the drum 210.

[0082] Specifically, Figure 1 , Figure 2 as well as Figure 6 As shown, the hoisting unit 200 further includes a lifting brake 250 connected to the drum 210 . The lifting brake 250 is disposed on the base 280 . The lifting brake 250 is disposed to limit the rotation of the drum 210 .

[0083] Specifically, Figure 1 , Figure 2 as well as Figure 6 As shown, the hoisting unit 200 further includes an encoder 260, which is used to detect the number of rotations of the drum 210, and then calculate the moving distance of the winding unit 300 along the first direction by calculating the length change of the connecting rope.

[0084] Specifically, Figure 1 , Figure 2 as well as Figure 6 As shown, the hoisting unit 200 further includes a force sensor 270, and the force sensor 270 is used to detect the tension of the connecting rope.

[0085] The present application also provides a method for recovering a nuclear reactor detector assembly, using any of the above-mentioned nuclear reactor detector assembly recovery systems, the method for recovering a nuclear reactor detector assembly comprising:

[0086] Insert the end of the detector assembly into the slot on the reel 410;

[0087] Rotating the reel 410 to wind the detector assembly onto the reel 410;

[0088] The pressing assembly 500 is made to fit the detector assembly on the reel 410 to press the detector assembly onto the reel 410 .

[0089] In the above-mentioned nuclear reactor detector assembly recovery method, when the detector assembly needs to be stored, one end of the detector assembly is first clamped into the slot on the reel 410, and then the reel 410 is rotated to make the detector assembly curled on the reel 410, and then the clamping assembly 500 is used to compress the detector assembly and the reel 410 so that the detector assembly fits the reel 410, thereby further reducing the volume of the curled detector assembly and facilitating the storage and storage of the detector assembly.

[0090] Specifically, while the reel 410 rotates, the reciprocating mounting plate 310 moves in the second direction to drive the reel 410 to move in the second direction. The reciprocating mounting plate 310 moves in the second direction, thereby driving the entire coil assembly 400 to move in the second direction, that is, the reel 410 moves in the second direction, thereby adjusting the relative position of the reel 410 and the detector assembly, so that the detector assembly can be completely wound on the reel 410.

[0091] Specifically, the movement of the reciprocating mounting plate 310 along the second direction includes: the reciprocating mounting plate 310 moves along the second direction toward the side away from the reciprocating driving member 360 to a first extreme position (i.e., the position limited by the first limit switch), and then moves along the second direction toward the side close to the reciprocating driving member 360 to a second extreme position (i.e., the position limited by the second limit switch). The reciprocating mounting plate 310 cyclically reciprocates between the first extreme position and the second extreme position until all the detector components are wound around the reel 410.

[0092] Specifically, before rotating the reel 410 , the detector assembly is clamped using the clamping assembly 700 .

[0093] In summary, this application also provides specific steps of the detector component recovery method:

[0094] The detector assembly is inserted into the slot of the reel 410, and the clamping drive member 710 is extended, so that the second clamping roller 730 and the first clamping roller 720 clamp the detector assembly;

[0095] The pressure roller 520 is pressed onto the reel 410, and the rotation of the reel 410 drives the detector assembly to rotate. During the rotation, the detector assembly is wound around the reel 410, and the pressure roller 520 is pressed onto the detector assembly to cause plastic deformation of the detector assembly, so that the detector assembly is tightly attached to the reel 410;

[0096] After the detector assembly is wound up two times, the pressing roller 520 moves back and separates from the reel 410, and no longer presses;

[0097] The reel 410 continues to rotate, and the reciprocating mounting plate 310 drives the entire coil assembly 400 to move in the second direction, so that the reel 410 begins to reciprocate in the second direction;

[0098] As the number of coils of the detector assembly increases, the latest coil of the detector assembly wound on the reel 410 is always in a straight line with the first clamping roller 720 and the second clamping roller 730;

[0099] After the first layer of the detector assembly is wound, the reel 410 moves along the second direction to the first limit position. When the second layer of the detector assembly is wound, the reel 410 starts to move along the second direction from the first limit position to the second limit position.

[0100] Repeat the above process until the detector assembly is rolled up;

[0101] After the detector assembly is wound, the push-out driving member drives the accommodating member 620 to move along the second direction toward the side away from the reciprocating driving member 360 to push out the wound detector assembly on the reel 410 .

[0102] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A nuclear reactor detector assembly recovery system, characterized in that: The nuclear reactor detector assembly recovery system comprises: Rack(100); A winding unit (300) is arranged on the frame (100), and the winding unit (300) includes a winding assembly (400) and a pressing assembly (500). The winding assembly (400) includes a reel (410), and the reel (410) is provided with a slot for being engaged with a detector assembly. The reel (410) is configured to rotate so that the detector assembly engaged with the slot is wound on the reel (410), and the pressing assembly (500) is used to make the detector assembly wound on the reel (410) fit the reel (410).

2. The nuclear reactor detector assembly recovery system according to claim 1, characterized in that: The coil unit (300) includes a reciprocating mounting plate (310) that slidably cooperates with the frame (100), and the coil assembly (400) is arranged on the reciprocating mounting plate (310). The reciprocating mounting plate (310) can slide along a second direction relative to the frame (100) to drive the coil assembly (400) to move along the second direction, wherein the second direction is parallel to the axial direction of the reel (410).

3. The nuclear reactor detector assembly recovery system according to claim 2, characterized in that: The coiling unit (300) further comprises a lifting mounting plate (320) which is slidably matched with the frame (100); the reciprocating mounting plate (310) is connected to the lifting mounting plate (320) and is slidably matched with the lifting mounting plate (320); the clamping assembly (500) is connected to the lifting mounting plate (320); the lifting mounting plate (320) is capable of sliding along a first direction relative to the frame (100) to drive the coiling assembly (400) and the clamping assembly (500) to move along the first direction, wherein the first direction is the height direction of the frame (100), and the first direction is arranged at an angle to the second direction.

4. The nuclear reactor detector assembly recovery system according to claim 2, characterized in that: The winding unit (300) further comprises an ejection assembly (600) disposed on the reciprocating mounting plate (310), the ejection assembly (600) comprising a push driving member (610) and a receiving member (620) connected to each other, the receiving member (620) having a receiving cavity for receiving the reel (410), the push driving member (610) being capable of pushing the receiving member (620) to move in a direction away from the reel (410) along the second direction, so that the detector assembly wound on the reel (410) moves in a direction away from the reel (410).

5. The nuclear reactor detector assembly recovery system according to claim 1, characterized in that: The clamping assembly (500) comprises a clamping roller (520) and a clamping driving member (510) connected to each other, and the clamping driving member (510) is capable of driving the clamping roller (520) to move so as to fit the reel (410) or the detector assembly wound on the reel (410).

6. The nuclear reactor detector assembly recovery system according to claim 1, characterized in that: The coiling unit (300) further comprises a clamping assembly (700), wherein the clamping assembly (700) is connected to the frame (100), and the clamping assembly (700) is used to clamp the detector assembly.

7. The nuclear reactor detector assembly recovery system according to claim 6, characterized in that: The clamping assembly (700) includes a clamping drive (710), a first clamping roller (720) and a second clamping roller (730). The clamping drive (710) and the first clamping roller (720) are arranged on the frame (100). The output end of the clamping drive (710) is connected to the second clamping roller (730). The clamping drive (710) can drive the second clamping roller (730) to move closer to or away from the first clamping roller (720) to clamp or release the detector assembly.

8. The nuclear reactor detector assembly recovery system according to claim 1, characterized in that: It also includes a hoisting unit (200) arranged on the frame (100); The hoisting unit (200) comprises a drum (210), a connecting rope and a fixed pulley assembly (220); one end of the connecting rope is wound around the drum (210), and the other end passes through the fixed pulley assembly (220) and is connected to the winding unit (300); the drum (210) is configured to rotate so that the connecting rope drives the winding unit (300) to move.

9. A method for recycling a nuclear reactor detector assembly, characterized in that: Using the nuclear reactor detector assembly recovery system according to any one of claims 1 to 8, the nuclear reactor detector assembly recovery method comprises: Inserting the end of the detector assembly into the slot on the reel (410); Rotating the reel (410) to wind the detector assembly onto the reel (410); The pressing assembly (500) is made to fit the detector assembly on the reel (410) so as to press the detector assembly onto the reel (410).

10. The method for recycling nuclear reactor detector components according to claim 9, characterized in that: While the reel (410) rotates, the reciprocating mounting plate (310) moves along the second direction to drive the reel (410) to move along the second direction.

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