Internal cutting device and method for high-radioactivity cylindrical component

Abstract

The invention provides an internal cutting device and method for a high-radioactivity cylindrical component. The internal cutting device comprises a hoisting flange, a cutting device and a cutting device, the top of the supporting main body is fixedly connected with the hoisting flange; the telescopic part is assembled in the middle of the supporting main body, so that the supporting main body is fixed in the high-radioactivity cylindrical component; the rotary feeding mechanism is movably connected with the supporting main body and is configured to do rotary motion on the circle center tangent plane of the high-radioactivity cylindrical component; the radial feeding mechanism is configured to do stretching motion in the radial direction parallel to the circle center tangent plane and then synchronously rotate along with the rotation motion of the rotary feeding mechanism; and the cutting head is arranged at the top end of the radial feeding mechanism and is configured to cut the inner wall of the high-radioactivity cylindrical component from inside to outside along with the stretching movement of the radial feeding mechanism and then circumferentially cut the inner wall along with the rotating movement of the rotary feeding mechanism. According to the technical scheme, the remote disassembly efficiency and safety of the high-radioactivity cylindrical component in a high-radioactivity environment are improved.

Description

[Technical field]

[0001] The present application relates to the technical field of radioactive waste treatment, and in particular to an internal cutting device and method for a highly radioactive cylindrical component. [Background technology]

[0002] In the field of nuclear facility decommissioning, there is a great demand for cutting operations of thick-walled cylindrical components such as pressure vessels, reactor internals, and large pipelines. Since such components contain radioactive contamination, cutting operators have a high risk of irradiation, and remote cutting needs to be achieved through automated equipment. Due to the large wall thickness, large size, and heavy weight of such components, more external facilities are required to assist. During the cutting process, due to the large space occupied, it is difficult to achieve better radiation protection and waste collection. When cutting, it is necessary to choose a suitable cutting method to avoid excessive diffusion of secondary waste. The cutting methods of such components are mainly divided into external cutting and inside-out cutting. It is difficult to install and hoist the object to be cut using the external cutting method, and it has a high cutting difficulty. It is difficult to control the industrial safety and radiation safety risks of personnel. Internal cutting can reduce the risk of secondary waste diffusion, but personnel are not suitable for entering the internal operation of the component. Therefore, it is very necessary to design a remote internal cutting device.

[0003] At present, large thick-walled components in the general industrial field do not involve radioactive pollution, have low requirements for the amount of secondary waste generated and remote automated operation, and are very convenient to install and fix. Flame cutting, plasma cutting, laser thermal cutting and other thermal cutting methods are often used to perform external cutting of large thick-walled components. Although thermal cutting is fast, it is easy to produce smoke, dust and other fine particles carrying radioactivity, which will cause internal exposure risks to personnel and environmental pollution problems. Mechanical cutting has the advantages of good cutting section quality and no smoke and dust. For large cylindrical components with radioactivity, the reasonable use of mechanical cutting can achieve better disintegration effects. However, large cylindrical components are huge in size. When cutting them mechanically, the entire large cylindrical component needs to be included in the cutting range, which requires the preparation of a large mechanical cutting device. The preparation of a large mechanical cutting device consumes huge costs and is difficult to prepare. The remote operation of a large mechanical cutting device is also difficult.

[0004] Therefore, how to efficiently and conveniently achieve mechanical cutting of large cylindrical components with high radioactivity has become a technical problem that needs to be solved urgently. [Summary of the invention]

[0005] The embodiments of the present application provide an internal cutting device and method for a highly radioactive cylindrical component, aiming to solve the technical problem in the related art that mechanical cutting of large cylindrical components with high radioactivity is costly and difficult.

[0006] In a first aspect, an embodiment of the present application provides an internal cutting device for a highly radioactive cylindrical member, comprising:

[0007] Lifting flange, connected to external transport auxiliary equipment;

[0008] A supporting body, the top of which is fixedly connected to the hanging flange;

[0009] Wherein, the lifting flange is configured to be driven by the external transport auxiliary equipment to drive the supporting body to move inside the highly radioactive cylindrical component along the axis of the highly radioactive cylindrical component;

[0010] a telescopic member, assembled in the middle of the support body and fixed by the support body, the telescopic member comprising a plurality of telescopic rods, the plurality of telescopic rods being configured to extend to bear against the inner wall of the highly radioactive cylindrical member when the support body moves to a specified position, so that the support body is fixed inside the highly radioactive cylindrical member;

[0011] A rotary feeding mechanism, disposed at the bottom of the supporting body, movably connected to the supporting body, and configured to perform a rotary motion on the central section of the highly radioactive cylindrical member;

[0012] A radial feed mechanism, fixedly connected to the rotary feed mechanism, is configured to first perform a stretching movement along a radial direction parallel to the tangent plane of the circle center, and then rotate synchronously with the rotary movement of the rotary feed mechanism;

[0013] The cutting head is arranged at the top end of the radial feed mechanism and is configured to first cut the inner wall of the high-radioactive cylindrical component from the inside out as the radial feed mechanism extends, and then perform circumferential cutting on the inner wall as the rotary feed mechanism rotates.

[0014] In one embodiment of the present application, optionally, the support body includes:

[0015] A hollow cylinder, the upper portion of which is fixedly connected to the lifting flange;

[0016] A plurality of supporting members are connected to the hollow cylinder and have a plurality of supporting parts respectively matched with the plurality of telescopic rods, wherein each of the telescopic rods is arranged inside the corresponding supporting part.

[0017] In one embodiment of the present application, optionally, the telescopic member further comprises:

[0018] A plurality of cylinders, each of which is disposed inside the corresponding support portion and has a power material channel, wherein the power material channel is connected to the corresponding telescopic rod;

[0019] A power source, connected to the power material passage of the cylinder body through the central through hole of the hanging flange, and configured to expand or contract the power material in the power material passage by changing the pressure level of the power material;

[0020] Each telescopic rod extends when the power material in the cylinder where the telescopic rod is located expands, and contracts when the power material in the cylinder where the telescopic rod is located contracts.

[0021] In one embodiment of the present application, optionally, the rotary feeding mechanism includes:

[0022] A fixed shell, fixedly connected to the multiple supporting members;

[0023] A worm, a turbine rotating part and a rotary driving part, wherein the worm is connected to the turbine rotating part and the rotary driving part respectively, and the rotary driving part is configured to drive the worm to rotate and then drive the turbine rotating part to rotate around the center of the supporting body;

[0024] The radial feeding support portion is fixedly connected to the radial feeding mechanism.

[0025] In one embodiment of the present application, optionally, the radial feeding mechanism includes:

[0026] A radial support track, fixed to the radial feed support portion;

[0027] a radial feed slider, located in the radial support track and configured to slide in the radial support track;

[0028] The radial feed drive unit is connected to the radial feed slider and is configured to drive the slider to move along the radial support track, wherein the radial feed slider is configured to move along the radial support track in a direction away from or close to the center of the support body.

[0029] In one embodiment of the present application, optionally, the cutting head comprises:

[0030] Knives;

[0031] A tool clamping portion, clamping the tool;

[0032] The cutting drive unit is fixedly connected to the radial feed slider and connected to the tool holding unit, and is configured to drive the tool of the tool holding unit to cut the inner wall of the high-radioactive cylindrical component from the inside out and circumferentially.

[0033] In one embodiment of the present application, optionally, it further includes:

[0034] The force feedback device is arranged on the cutting head and is configured to detect the reaction force when the tool performs inside-out cutting and circumferential cutting.

[0035] In one embodiment of the present application, optionally, the connection wires between the components in the internal cutting device are arranged in the internal wiring holes of the components; and

[0036] There are multiple designated locations.

[0037] In a second aspect, an embodiment of the present application provides an internal cutting method for a highly radioactive cylindrical component, comprising:

[0038] The internal cutting device of the highly radioactive cylindrical member is driven by an external transport auxiliary device to enter the interior of the highly radioactive cylindrical member and move along the axis of the highly radioactive cylindrical member to a plurality of designated positions, wherein when the internal cutting device is located at each of the designated positions,

[0039] Extending the multiple telescopic rods in the telescopic member of the inner cutting device to respectively support the inner wall of the highly radioactive cylindrical member, so that the inner cutting device is fixed inside the highly radioactive cylindrical member;

[0040] Controlling the radial feeding mechanism of the inner cutting device to extend along a radial direction parallel to the central section of the highly radioactive cylindrical member, so that the cutting head on the radial feeding mechanism cuts the inner wall of the highly radioactive cylindrical member from the inside out;

[0041] The rotary feed mechanism of the inner cutting device is driven to perform rotational motion on the center section plane, thereby driving the radial feed mechanism fixed on the rotary feed mechanism to rotate synchronously, so that the cutting head on the radial feed mechanism performs circumferential cutting on the inner wall after being embedded in the inner wall through inside-out cutting.

[0042] In a third aspect, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the method described in the second aspect above.

[0043] The above technical solution aims at the technical problem that mechanical cutting of large cylindrical components with high radioactivity is costly and difficult in the related art. In a high radiation level environment, the internal cutting device can be used to remotely mechanically cut the highly radioactive cylindrical components from the inside to the outside to complete the dismantling of the highly radioactive cylindrical components. As a result, the secondary waste generated is only metal particles, and by cutting from the inside to the outside, the waste is always contained in the limited area at the bottom of the highly radioactive cylindrical components to prevent diffusion, which is conducive to waste collection and treatment. At the same time, it avoids close contact between personnel and highly radioactive cylindrical components, reduces the radiation and industrial safety risks of personnel, greatly reduces the burden of waste disposal, and significantly improves the efficiency and safety of remote dismantling of large highly radioactive cylindrical components in a high radiation environment.

Brief Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A schematic structural diagram of an internal cutting device for a highly radioactive cylindrical member according to an embodiment of the present application is shown;

[0046] Figure 2 Shows Figure 1 A schematic diagram of the partial structure of the inner cutting device;

[0047] Figure 3 Shows Figure 1 A schematic diagram of the structure of the rotary feed mechanism of the inner cutting device;

[0048] Figure 4 Shows Figure 1 A schematic diagram of the structure of the radial feeding mechanism and the cutting head of the inner cutting device;

[0049] Figure 5 A flow chart showing an internal cutting method of a highly radioactive cylindrical member according to an embodiment of the present application;

[0050] Figure 6 A flow chart showing a cutting process of a highly radioactive cylindrical member according to another embodiment of the present application;

[0051] Figure 7 A block diagram of a computer device according to an embodiment of the present application is shown;

[0052] Figure 8 A block diagram of a computer device according to another embodiment of the present application is shown. [Specific implementation method]

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Figure 1 A schematic structural diagram of an internal cutting device for a highly radioactive cylindrical member according to an embodiment of the present application is shown.

[0055] like Figure 1 As shown, an internal cutting device for a highly radioactive cylindrical component according to an embodiment of the present application includes: a hanging flange 1, a supporting body 2, a telescopic member 3, a rotary feeding mechanism 4, a radial feeding mechanism 5 and a cutting head 6.

[0056] The lifting flange 1 is connected to the external transport auxiliary equipment, the top of the support body 2 is fixedly connected to the lifting flange 1, and the lifting flange 1 is configured to be driven by the external transport auxiliary equipment to drive the support body 2 to move inside the highly radioactive cylindrical component along the axis of the highly radioactive cylindrical component. In this way, the internal cutting device can be driven by the external transport auxiliary equipment to move inside the highly radioactive cylindrical component, so as to perform cutting operations at different positions, thereby achieving the purpose of cutting the highly radioactive cylindrical component into multiple parts.

[0057] Optionally, there are multiple lifting flanges 1, and the multiple lifting flanges 1 are respectively fixedly connected to the top of the support body 2 to increase the stability of the support body 2 and improve the safety of subsequent cutting.

[0058] Optionally, the upper part of the lifting flange 1 is connected to an external transport auxiliary equipment, and the external transport auxiliary equipment drives the entire internal cutting device to move horizontally or vertically through the lifting flange 1. The lifting flange 1 is connected to any possible lifting elements of the external transport auxiliary equipment, such as the lifting device, the end of the telescopic sleeve, and the hook.

[0059] Furthermore, the telescopic member 3 is assembled in the middle part of the support body 2 and is fixed by the support body 2. The telescopic member 3 includes a plurality of telescopic rods 10. The plurality of telescopic rods 10 are configured to extend from the cylinder body 9 to support the inner wall of the high-radioactive cylindrical component when the support body 2 moves to a specified position, so that the support body 2 is fixed inside the high-radioactive cylindrical component.

[0060] Optionally, there are multiple designated positions, that is, the external transportation auxiliary equipment can lift the internal cutting device to multiple designated positions inside the high-radioactive cylindrical component and then perform internal cutting operations respectively, thereby achieving the purpose of cutting the high-radioactive cylindrical component into multiple parts.

[0061] In one embodiment of the present application, Figure 2 As shown, the supporting body 2 includes a hollow cylinder 7 and multiple supporting members 8.

[0062] Among them, the upper part of the hollow cylinder 7 is fixedly connected to the lifting flange 1, and multiple support members 8 are connected to the hollow cylinder 7, having multiple support parts that match the multiple telescopic rods 10 respectively, wherein each of the telescopic rods 10 is arranged inside the corresponding support part.

[0063] like Figure 2 As shown, the telescopic member 3 further includes a plurality of cylinders 9 and a power source.

[0064] A plurality of cylinder bodies 9 are each arranged inside the corresponding support part, and have a power material channel, and the power material channel is connected to the corresponding telescopic rod 10. Optionally, the power material is a compressible gas or a compressible liquid. The power source (not shown in the figure) is connected to the power material channel of the cylinder body 9 through the central through hole of the hanging flange 1, and is configured to expand or contract the power material in the power material channel by changing the pressure level of the power material. Each telescopic rod 10 extends when the power material in the cylinder body 9 where it is located expands, and contracts when the power material in the cylinder body 9 where it is located contracts.

[0065] That is to say, the telescopic rod 10 can be pushed out by increasing the air pressure or hydraulic pressure to expand the gas or liquid. In this process, the telescopic rod 10 stretches until it presses against the inner wall, thereby fixing the inner cutting device. Similarly, after completing the cutting operation at the current position, the air pressure or hydraulic pressure can be reduced to shrink the gas or liquid. After losing the thrust, the telescopic rod 10 also shrinks back into the cylinder, leaving the inner wall, and releasing the fixation of the inner cutting device. At this time, the inner cutting device can be moved to another designated position by external transportation auxiliary equipment to continue the cutting operation.

[0066] Optionally, the cylinder bodies 9 are evenly installed along the axis of the support body 2, and the number is not less than two. The lower part of the hanging flange 1 is connected to the support body 2, and the hanging flange 1 and the support body 2 can be fixedly connected by screw connection, bolt connection, welding, etc.

[0067] Optionally, the hanging flange 1 and the supporting body 2 may be an integral component.

[0068] Optionally, the space between the lifting flange 1 and the supporting body 2 provides space for routing connecting lines of components such as the cylinder body 9, the rotary feed mechanism 4, and the radial feed mechanism 5.

[0069] Optionally, a rubber sleeve is installed at the end of the telescopic rod 10 to increase friction. The bottom of each cylinder 9 is respectively connected to the multiple supporting members 8 supporting the main body 2 and is fixed by each supporting part of the multiple supporting members 8.

[0070] exist Figure 1 In the embodiment, the rotary feed mechanism 4 is arranged at the bottom of the support body 2, movably connected to the support body 2, and configured to perform rotational motion on the center section of the highly radioactive cylindrical member. The radial feed mechanism 5 is fixedly connected to the rotary feed mechanism 4, and configured to first perform extension motion along a radial direction parallel to the center section, and then rotate synchronously with the rotational motion of the rotary feed mechanism 4. The cutting head 6 is arranged at the top of the radial feed mechanism 5, and configured to first perform cutting from the inside to the outside of the inner wall of the highly radioactive cylindrical member with the extension motion of the radial feed mechanism 5, and then perform circumferential cutting of the inner wall with the rotational motion of the rotary feed mechanism 4.

[0071] That is to say, after the inner cutting device is fixed at the designated position inside the highly radioactive cylindrical member, the cutting head 6 is first pushed radially in the central section of the highly radioactive cylindrical member through the radial feeding mechanism 5, so that the cutting head 6 cuts the inner wall of the highly radioactive cylindrical member from the inside out, that is, it is embedded in the inner wall through the cutting operation. At this time, the rotary feeding mechanism 4 is driven to drive the radial feeding mechanism 5 and even the cutting head 6 fixed on the radial feeding mechanism 5 to rotate together, so that the cutting head 6 performs a circular motion to perform a circular cutting on the inner wall of the highly radioactive cylindrical member, thereby completing the cutting of the highly radioactive cylindrical member.

[0072] The above technical solution can use the internal cutting device to remotely mechanically cut the highly radioactive cylindrical component from the inside to the outside in a high radiation level environment to complete the dismantling of the highly radioactive cylindrical component. As a result, the secondary waste generated is only metal particles, and by cutting from the inside to the outside, it is ensured that the waste is always contained in the limited area at the bottom of the highly radioactive cylindrical component to prevent diffusion, which is conducive to waste collection and treatment. At the same time, it avoids close contact between personnel and highly radioactive cylindrical components, reduces the radiation and industrial safety risks of personnel, greatly reduces the burden of waste disposal, and significantly improves the remote dismantling efficiency and safety of large-scale highly radioactive cylindrical components in a high radiation environment.

[0073] Reference Figure 3 As shown, the rotary feeding mechanism 4 includes: a fixed housing 15 , a worm 12 , a turbine rotary part 13 and a rotary driving part 11 .

[0074] The fixed housing 15 is fixedly connected to the multiple supporting members 8, the worm 12 is connected to the turbine rotating part 13 and the rotary driving part 11 respectively, and the rotary driving part 11 is configured to drive the worm 12 to rotate and then drive the turbine rotating part 13 to rotate around the center of the supporting body 2. In other words, the rotary driving part 11 drives the worm 12 to rotate, and the worm 12 generates thrust during the rotation process, and the thrust acts on the turbine rotating part 13 to rotate the turbine rotating part 13, thereby driving the entire rotary feeding mechanism 4 to rotate.

[0075] Furthermore, the rotary feeding mechanism 4 also includes a radial feeding support portion 14, which is fixedly connected to the radial feeding mechanism 5 and is used to fix the radial feeding mechanism 5 to the rotary feeding mechanism 4, so that when the rotary feeding mechanism 4 makes a rotational motion, the radial feeding mechanism 5 and the cutting head 6 thereon are driven to rotate synchronously through this fixed connection.

[0076] Reference Figure 4 As shown, the radial feeding mechanism 5 includes a radial supporting rail 17 , a radial feeding slider 18 and a radial feeding driving part 16 , and the cutting head 6 includes a tool 21 , a tool clamping part 20 and a cutting driving part 19 .

[0077] Among them, the radial support track 17 is fixed to the radial feed support part 14, the radial feed slider 18 is located in the radial support track 17, and is configured to slide in the radial support track 17, and the radial feed drive part 16 is connected to the radial feed slider 18, and is configured to drive the slider to move along the radial support track 17, wherein the radial feed slider 18 is configured to move along the radial support track 17 in a direction away from or close to the center of the support body 2.

[0078] Among them, the tool clamping part 20 clamps the tool 21, the cutting drive part 19 is fixedly connected to the radial feed slider 18 and connected to the tool clamping part 20, and is configured to provide power for the tool 21, driving the tool 21 of the tool clamping part 20 to cut the inner wall of the high-radioactive cylindrical component from the inside out and circumferentially.

[0079] That is, the cutter 21 can automatically cut the inner wall by driving the radial feed slider 18 to move radially toward the inner wall on the radial support track 17. At the same time, since the radial support track 17, the radial feed slider 18 and the radial feed drive unit 16 are all fixed to the rotary feed mechanism 4, the cutter 21 can also rotate synchronously with the rotary motion of the rotary feed mechanism 4, and further automatically cut the circumference after cutting the inner wall from the inside to the outside.

[0080] Optionally, the tool clamping portion 20 has a drive shaft and a standard interface for quickly replacing and clamping various types of tools 21 such as circular saws, drill bits and milling cutters, and providing power transmission for the tools 21 .

[0081] Figure 5 A flow chart of an internal cutting method of a highly radioactive cylindrical member according to an embodiment of the present application is shown.

[0082] Combination Figures 1 to 4 The structure shown is Figure 5 As shown, the method includes:

[0083] Step 502: Drive the internal cutting device of the highly radioactive cylindrical member into the interior of the highly radioactive cylindrical member through external transport auxiliary equipment, and move it to a plurality of designated positions along the axis of the highly radioactive cylindrical member.

[0084] Step 504, when the inner cutting device is located at each of the designated positions, the multiple telescopic rods in the telescopic member of the inner cutting device are respectively extended to support the inner wall of the highly radioactive cylindrical component, so that the inner cutting device is fixed inside the highly radioactive cylindrical component.

[0085] Step 506, controlling the radial feeding mechanism of the inner cutting device to extend along a radial direction parallel to the central section of the highly radioactive cylindrical component, so that the cutting head on the radial feeding mechanism cuts the inner wall of the highly radioactive cylindrical component from the inside out.

[0086] Step 508, driving the rotary feed mechanism of the inner cutting device to perform rotational motion on the center section plane, driving the radial feed mechanism fixed on the rotary feed mechanism to rotate synchronously, so that the cutting head on the radial feed mechanism performs circular cutting on the inner wall after being embedded in the inner wall through inside-out cutting.

[0087] Therefore, in a high radiation level environment, the internal cutting device can be used to perform remote mechanical cutting from the inside to the outside on the highly radioactive cylindrical component to complete the dismantling of the highly radioactive cylindrical component.

[0088] In this way, the secondary waste generated is only metal particles, and by cutting from the inside to the outside, the waste is always contained in a limited area at the bottom of the highly radioactive cylindrical component to prevent diffusion, which is conducive to waste collection and treatment. At the same time, it avoids close contact between personnel and highly radioactive cylindrical components, reduces personnel radiation and industrial safety risks, greatly reduces the burden of waste treatment, and significantly improves the efficiency and safety of remote dismantling of large highly radioactive cylindrical components in a high radiation environment.

[0089] In addition, what is not shown in the figure is that the inner cutting device also includes a force feedback device, which is arranged on the cutting head and is configured to detect the reaction force when the tool performs inside-out cutting and circumferential cutting. In other words, the force feedback device can detect the reaction force on the cutting head, and this reaction force is generated by the reaction force when the cutting head performs inside-out cutting and circumferential cutting, and can reflect the force level of the cutting head when performing the cutting operation, so the detection result of the force feedback device reflects the cutting force of the cutting head.

[0090] Not shown in the figure is that the connecting wires between the components in the internal cutting device are arranged in the internal wiring holes of the components. Thus, the influence of radiation on the connecting wires and the instrumentation and control components connected by the connecting wires can be reduced, that is, the negative influence of radiation on automated cutting can be reduced.

[0091] Figure 6 A flow chart showing a cutting process of a highly radioactive cylindrical member according to an embodiment of the present application is shown.

[0092] like Figure 6 As shown, the cutting process of highly radioactive cylindrical components is as follows:

[0093] Step 1: Lift the internal cutting device, that is, use external transportation auxiliary equipment to lift the entire internal cutting device to the upper part of the high-radioactive cylindrical component through the lifting flange.

[0094] Step 2: Axis alignment, that is, positioning the central axis of the inner cutting device to coincide with the central axis of the highly radioactive cylindrical component.

[0095] Step 3: The tightening rod is retracted. The tightening rod is a telescopic rod. Before entering the highly radioactive cylindrical component, the tightening rod inside the telescopic component is controlled to retract to reduce the lateral volume of the inner cutting device to facilitate entry into the interior of the highly radioactive cylindrical component.

[0096] Step 4: The inner cutting device is placed into the component, that is, the external transport auxiliary equipment is controlled to lower the inner cutting device into the interior of the highly radioactive cylindrical component.

[0097] Step 5: Vertical positioning, that is, positioning in the vertical direction according to the required cutting position.

[0098] Step 6: Tighten the tension rod, i.e. control the tension rod in the telescopic part to extend, so that the tension rod contacts the inner wall of the highly radioactive cylindrical component and applies force to support the entire inner cutting device on the inner wall of the highly radioactive cylindrical component, so that the inner cutting device and the highly radioactive cylindrical component are relatively fixed.

[0099] Step 7: Align the cutting head, i.e. drive the cutting head to extend and align it with the inner wall of the highly radioactive cylindrical component.

[0100] Step 8: radial cutting of the tool, that is, after the tool setting is completed, the tool is started to rotate and the radial feed speed is controlled to perform radial cutting.

[0101] Step 9: The tool performs circumferential cutting, that is, after radial cutting to a certain depth, the cutting head is driven to rotate around the supporting body so that the cutting head performs circular cutting.

[0102] Step 10: Cutting is completed. Keep the radial elongation unchanged and complete the 360° cutting of the inner wall through the rotational motion.

[0103] Step 11: The inner cutting head retracts. After one circle of cutting is completed, if the cutting task is completed, the inner cutting device is withdrawn from the highly radioactive cylindrical component.

[0104] You can choose to continue cutting at the next station, or you can choose.

[0105] Step 12: The tightening rod is retracted, that is, after the cutting of the circle is completed, the tightening rod is retracted.

[0106] Step 13: Lift out the internal cutting device, that is, complete the cutting of the entire highly radioactive cylindrical component, and lift the internal cutting device out of the highly radioactive cylindrical component.

[0107] Step 14: Circular cutting from the inside to the outside. That is, facing the thicker inner wall, the circular cutting work can be repeated until the cutting is successful.

[0108] Step 15: Go to the next station for cutting. After the tension rod is retracted, if the cutting task is not completed, the inner cutting device can be moved to other positions inside the highly radioactive cylindrical component, that is, the next station, to perform radial cutting and circumferential cutting again.

[0109] The entire process can achieve remote internal cutting of highly radioactive cylindrical components without the need for on-site personnel to implement it, providing support for reducing labor intensity, radiation dose, industrial safety risks and environmental pollution issues, and providing technical reserves for subsequent nuclear facility decommissioning work.

[0110] In addition, in one embodiment, the present application provides a computer device, which may be a server, and its internal structure diagram may be as follows: Figure 7As shown. The computer device includes a processor, a memory, a network interface and a database connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile and / or volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external client via a network connection. When the computer program is executed by the processor, the internal cutting method of the highly radioactive cylindrical component described in any of the above embodiments can be implemented.

[0111] In one embodiment, the present application further provides a computer device, which may be a client, and its internal structure diagram may be as follows: Figure 8 As shown. The computer device includes a processor, a memory, a network interface, a display screen and an input device connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external server via a network connection. When the computer program is executed by the processor, the internal cutting method of the highly radioactive cylindrical component described in any of the above embodiments can be implemented.

[0112] Any of the above-mentioned computer devices in the embodiments of the present application may exist in various forms, including but not limited to:

[0113] (1) Mobile communication devices: These devices are characterized by having mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0114] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0115] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, as well as smart toys, wearable devices, and portable car navigation devices.

[0116] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, system bus, etc. The server is similar to a general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0117] (5) Other electronic devices with data interaction functions.

[0118] In addition, an embodiment of the present application provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to perform the following steps:

[0119] The internal cutting device of the highly radioactive cylindrical member is driven by an external transport auxiliary device to enter the interior of the highly radioactive cylindrical member and move along the axis of the highly radioactive cylindrical member to a plurality of designated positions, wherein when the internal cutting device is located at each of the designated positions,

[0120] Extending the multiple telescopic rods in the telescopic member of the inner cutting device to respectively support the inner wall of the highly radioactive cylindrical member, so that the inner cutting device is fixed inside the highly radioactive cylindrical member;

[0121] Controlling the radial feeding mechanism of the inner cutting device to extend along a radial direction parallel to the central section of the highly radioactive cylindrical member, so that the cutting head on the radial feeding mechanism cuts the inner wall of the highly radioactive cylindrical member from the inside out;

[0122] The rotary feed mechanism of the inner cutting device is driven to perform rotational motion on the center section plane, thereby driving the radial feed mechanism fixed on the rotary feed mechanism to rotate synchronously, so that the cutting head on the radial feed mechanism performs circumferential cutting on the inner wall after being embedded in the inner wall through inside-out cutting.

[0123] It should be noted that the above functions or steps that can be implemented by the computer-readable storage medium or computer device can refer to the relevant description in the aforementioned method embodiment. In order to avoid repetition, they will not be described one by one here.

[0124] The technical solution of the present application is described in detail above in conjunction with the accompanying drawings. Through the technical solution of the present application, in an environment with high radiation levels, an internal cutting device can be used to remotely mechanically cut a highly radioactive cylindrical component from the inside to the outside to complete the dismantling of the highly radioactive cylindrical component. As a result, the secondary waste generated is only metal particles, and by cutting from the inside to the outside, it is ensured that the waste is always contained in a limited area at the bottom of the highly radioactive cylindrical component to prevent diffusion, which is beneficial to waste collection and treatment. At the same time, it avoids close contact between personnel and highly radioactive cylindrical components, reduces personnel radiation and industrial safety risks, greatly reduces the burden of waste disposal, and significantly improves the efficiency and safety of remote dismantling of large highly radioactive cylindrical components in a high radiation environment.

[0125] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0126] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An internal cutting device for a highly radioactive cylindrical member, characterized in that: include: Lifting flange, connected to external transport auxiliary equipment; A supporting body, the top of which is fixedly connected to the hanging flange; Wherein, the lifting flange is configured to be driven by the external transport auxiliary equipment to drive the supporting body to move inside the highly radioactive cylindrical component along the axis of the highly radioactive cylindrical component; a telescopic member, assembled in the middle of the support body and fixed by the support body, the telescopic member comprising a plurality of telescopic rods, the plurality of telescopic rods being configured to extend to bear against the inner wall of the highly radioactive cylindrical member when the support body moves to a specified position, so that the support body is fixed inside the highly radioactive cylindrical member; A rotary feeding mechanism, disposed at the bottom of the supporting body, movably connected to the supporting body, and configured to perform a rotary motion on the central section of the highly radioactive cylindrical member; A radial feed mechanism, fixedly connected to the rotary feed mechanism, is configured to first perform a stretching movement along a radial direction parallel to the tangent plane of the circle center, and then rotate synchronously with the rotary movement of the rotary feed mechanism; The cutting head is arranged at the top end of the radial feed mechanism and is configured to first cut the inner wall of the high-radioactive cylindrical component from the inside out as the radial feed mechanism extends, and then perform circumferential cutting on the inner wall as the rotary feed mechanism rotates.

2. The inner cutting device according to claim 1, characterized in that: The supporting body comprises: A hollow cylinder, the upper portion of which is fixedly connected to the lifting flange; A plurality of supporting members are connected to the hollow cylinder and have a plurality of supporting parts respectively matched with the plurality of telescopic rods, wherein each of the telescopic rods is arranged inside the corresponding supporting part.

3. The inner cutting device according to claim 2, characterized in that: The telescopic member also includes: A plurality of cylinders, each of which is disposed inside the corresponding support portion and has a power material channel, wherein the power material channel is connected to the corresponding telescopic rod; A power source, connected to the power material passage of the cylinder body through the central through hole of the hanging flange, and configured to expand or contract the power material in the power material passage by changing the pressure level of the power material; Each telescopic rod extends when the power material in the cylinder where the telescopic rod is located expands, and contracts when the power material in the cylinder where the telescopic rod is located contracts.

4. The inner cutting device according to claim 2, characterized in that: The rotary feeding mechanism comprises: A fixed shell, fixedly connected to the multiple supporting members; A worm, a turbine rotating part and a rotary driving part, wherein the worm is connected to the turbine rotating part and the rotary driving part respectively, and the rotary driving part is configured to drive the worm to rotate and then drive the turbine rotating part to rotate around the center of the supporting body; The radial feeding support portion is fixedly connected to the radial feeding mechanism.

5. The inner cutting device according to claim 4, characterized in that: The radial feeding mechanism comprises: A radial support track, fixed to the radial feed support portion; a radial feed slider, located in the radial support track and configured to slide in the radial support track; The radial feed drive unit is connected to the radial feed slider and is configured to drive the slider to move along the radial support track, wherein the radial feed slider is configured to move along the radial support track in a direction away from or close to the center of the support body.

6. The inner cutting device according to claim 5, characterized in that The cutting head comprises: Knives; A tool clamping portion, clamping the tool; The cutting drive unit is fixedly connected to the radial feed slider and connected to the tool holding unit, and is configured to drive the tool of the tool holding unit to cut the inner wall of the high-radioactive cylindrical component from the inside out and circumferentially.

7. The inner cutting device according to claim 6, characterized in that Also includes: The force feedback device is arranged on the cutting head and is configured to detect the reaction force when the tool performs inside-out cutting and circumferential cutting.

8. The internal cutting device according to claim 1, characterized in that The connecting wires between the components in the inner cutting device are arranged in the internal wiring holes of the components; and There are multiple designated locations.

9. A method for internal cutting of a highly radioactive cylindrical member, characterized in that: include: The internal cutting device of the highly radioactive cylindrical member is driven by an external transport auxiliary device to enter the interior of the highly radioactive cylindrical member and move along the axis of the highly radioactive cylindrical member to a plurality of designated positions, wherein when the internal cutting device is located at each of the designated positions, Extending the multiple telescopic rods in the telescopic member of the inner cutting device to respectively support the inner wall of the highly radioactive cylindrical member, so that the inner cutting device is fixed inside the highly radioactive cylindrical member; Controlling the radial feeding mechanism of the inner cutting device to extend along a radial direction parallel to the central section of the highly radioactive cylindrical member, so that the cutting head on the radial feeding mechanism cuts the inner wall of the highly radioactive cylindrical member from the inside out; The rotary feed mechanism of the inner cutting device is driven to perform rotational motion on the center section plane, thereby driving the radial feed mechanism fixed on the rotary feed mechanism to rotate synchronously, so that the cutting head on the radial feed mechanism performs circumferential cutting on the inner wall after being embedded in the inner wall through inside-out cutting.

10. A computer-readable storage medium, characterized in that: Computer executable instructions are stored, and the computer executable instructions are used to perform the method according to claim 9.

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