A valve disassembly apparatus, method, and valve handling system

Abstract

The application provides a valve disassembly device, a first box and a second box of which are separated from each other and communicated through a channel, the first box is provided with an operating device for automatically disassembling a middle section and a lower section of a valve core and clamping the valve core to a manual operating position, the second box is communicated with a subsequent processing device, the second box is provided with a receiving and transporting device for entering the channel before the valve core lower section, middle section and upper section are disassembled, so as to close the channel and receive the valve core lower section, middle section and upper section, and after receiving the valve core lower section, middle section and upper section, the receiving and transporting device exits the channel and is transported to the subsequent processing device, and the channel is provided with a closing device for closing the channel after the receiving and transporting device exits the channel. The valve disassembly device can provide a manual disassembly platform and realize automatic disassembly and transportation, has low operation difficulty, is high in valve disassembly efficiency, and avoids affecting personal safety. The application also provides a valve disassembly method and a valve processing system.

Description

TECHNICAL FIELD

[0001] The present application relates to a valve disassembly device, a valve disassembly method and a valve processing system. BACKGROUND

[0002] In the field of nuclear industry, alpha waste and high-level waste are sent to waste conditioning facilities for waste disposal and temporary storage, and the through-wall valve is high-level waste due to its complex structure, large quantity and high radioactivity, and the waste treatment is relatively difficult.

[0003] The valve core of the through-wall valve is a multi-section structure, and the common form is a three-section structure: upper section, middle section and lower section. The upper section and the middle section are connected by a pin shaft, which needs to be manually disassembled. The middle section and the lower section are connected by a steel ball buckle, which can be automatically disassembled. The radioactivity levels of the valve cores of the sections are different: the upper section and the middle section are medium radioactive, and the lower section is high radioactive.

[0004] The through-wall valve is high-level radioactive waste. If it is transported to a hot cell with good radiation containment for disassembly, the disassembly of the pin shaft requires high flexibility, and it is difficult to operate remotely using master-slave manipulators. In addition, setting up mechanical structures for automatic disassembly in the hot cell is complex and occupies a lot of space in the hot cell, which cannot achieve efficient disassembly of the through-wall valve. Direct manual disassembly outside the hot cell will cause radiation risk and affect personal safety. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a valve disassembly device that can provide a manual disassembly platform and achieve automatic disassembly and transportation, has low operation difficulty, high valve core disassembly efficiency and avoids affecting personal safety, aiming at the above-mentioned deficiencies in the prior art. The present application also provides a valve processing system.

[0006] The present application provides a valve disassembly device, comprising a first box body and a second box body, the first box body and the second box body are separated from each other and are communicated through a channel, the first box body is provided with an operating device, the operating device is used for automatically disassembling the middle section and the lower section of the valve core of a valve to be disassembled, and clamping the valve core to a manual operation position, the manual operation position is used for manually disassembling the upper section and the middle section of the valve core, the second box body is communicated with a subsequent processing device, and the second box body is provided with a receiving and transporting device, the receiving and transporting device is used for entering the channel before the lower section, the middle section and the upper section of the valve core are disassembled, so as to close the channel and receive the lower section, the middle section and the upper section of the valve core, and after receiving the lower section, the middle section and the upper section of the valve core, the receiving and transporting device exits the channel and is transported to the subsequent processing device, and a closing device is arranged at the channel and is used for closing the channel after the receiving and transporting device exits the channel.

[0007] Preferably, the operating device comprises an upper clamping platform, a lower clamping platform and a lifting driving mechanism, the upper clamping platform is used for clamping the upper section of the valve core, the lower clamping platform is used for clamping the middle section of the valve core, the driving end of the lifting driving mechanism is connected with the upper clamping platform and the lower clamping platform respectively, and the two are driven to lift respectively, so that the upper section and the middle section of the valve core clamped by the two are relatively moved, the lower section of the valve core is separated from the middle section, and the upper section and the middle section of the valve core clamped by the two are synchronously moved, so that the manual operation position is reached.

[0008] Preferably, the lifting driving mechanism comprises a first driving member and a screw lifter, the first driving member is arranged outside the first box body, the screw lifter is arranged in the first box body, the driving end of the first driving member penetrates through the first box body and is connected with the screw lifter, and the upper clamping platform and the lower clamping platform are connected with the lifting shaft of the screw lifter, so that the screw lifter is driven by the first driving member to drive the two to lift.

[0009] Preferably, the first box body is further provided with a docking port, the docking port penetrates through the top wall of the first box body in a sealable manner, is used for docking with the pre-processing device, and receives the valve core into the first box body, and the docking port, the upper clamping platform, the lower clamping platform and the channel are arranged in sequence from top to bottom on the same vertical line.

[0010] Preferably, the receiving and transporting device comprises a transporting vehicle and a jacking mechanism, the transporting vehicle comprises a vehicle frame and a receiving barrel, the receiving barrel is movably connected with the vehicle frame in the vertical direction, and the jacking mechanism is arranged below the channel and is used for jacking up the receiving barrel of the transporting vehicle located at the channel, so that the receiving barrel enters the channel, the channel is closed, and the lower section, the middle section and the upper section of the valve core are received.

[0011] Preferably, the receiving and transporting device further comprises a transporting track and a second driving member, the transporting track is arranged below the channel and between the subsequent processing devices, the transporting vehicle is arranged on the transporting track, a sprocket assembly is arranged in parallel on the side of the transporting track, a transmission chain of the sprocket assembly is connected with the transporting vehicle, the second driving member is arranged outside the second box body, the driving end of the second driving member penetrates through the second box body and is connected with the sprocket assembly, so that the transporting vehicle is driven to move back and forth along the transporting track through the transmission chain, and the lower section, the middle section and the upper section of the valve core are transported to the subsequent processing devices.

[0012] Preferably, the closing device comprises a shielding block, a transmission mechanism and a third driving member, the transmission mechanism limits the movement of the shielding block along the surface of the second box body which is communicated with the channel, and the third driving member is arranged outside the second box body, the driving end of the third driving member penetrates through the second box body and is connected with the transmission mechanism, so that the shielding block is driven to move to close or open the channel.

[0013] Preferably, the first box, the second box and the space between the first box and the second box are provided with shielding bodies for radiation protection, the panel corresponding to the manual operation position of the first box is provided with a glove hole for manual operation, and the shielding body outside the first box is provided with an openable shielding door corresponding to the manual operation position for closing the glove hole.

[0014] Preferably, the device further comprises a controller and a dose rate detector, the dose rate detector is arranged in the first box for detecting the dose rate level in the first box, the shielding door is provided with a trigger button, the trigger button is electrically connected with the controller for sending a signal to the controller after being manually triggered, and the controller is electrically connected with the dose rate detector and the shielding door for opening the shielding door after determining that the received dose rate level meets the set requirement and receiving the signal of the trigger button.

[0015] Preferably, the first box is further provided with an air inlet filter and an air outlet filter for filtering the air flowing into and out of the first box, respectively.

[0016] The application also provides a valve disassembly method using the valve disassembly device, and the method comprises the following steps:

[0017] Before the valve core enters the first box, the control sealing device opens the channel to enable the receiving and transporting device to enter the channel, and the control operation device receives the valve core;

[0018] The control operation device disassembles the middle section and the lower section of the valve core, the receiving and transporting device receiving the lower section of the valve core exits the channel, and then the control sealing device seals the channel, and the receiving and transporting device transports the lower section of the valve core to a subsequent processing device;

[0019] After the receiving and transporting device returns, the control sealing device opens the channel to enable the receiving and transporting device to enter the channel, the control operation device clamps the valve core to the manual operation position, after the manual operation is completed, the receiving and transporting device receiving the middle section of the valve core exits the channel, the control sealing device seals the channel, and the receiving and transporting device transports the middle section of the valve core to a subsequent processing device;

[0020] After the receiving and transporting device returns, the control sealing device opens the channel to enable the receiving and transporting device to enter the channel, the control operation device releases the upper section of the valve core, the receiving and transporting device receiving the upper section of the valve core exits the channel, the control sealing device seals the channel, and the receiving and transporting device transports the upper section of the valve core to a subsequent processing device.

[0021] The present invention also provides a valve processing system, including a hoisting device, a maintenance container, a hot chamber, and the aforementioned valve dismantling device. The hoisting device is used to hoist the maintenance container to the valve dismantling device. The outlet of the maintenance container is detachably connected to the valve dismantling device for accommodating a valve core and conveying the valve core to the valve dismantling device. The valve dismantling device is used to disassemble the valve core and sequentially convey each segment of the valve core to the hot chamber for preparation.

[0022] The first chamber provided by this equipment serves as a disassembly operation space. When the valve core is entirely within this space, the operating device automatically disassembles the steel ball clips between the middle and lower sections of the valve core, causing the lower section to detach. The lower section only stays briefly within the first chamber before entering the second chamber to ensure that the radioactivity level within the first chamber is not excessively high.

[0023] After the lower section is disassembled, only the upper and middle sections of the valve core remain in the disassembly operation space. Both sections are moderately radioactive. Therefore, the first enclosure serves as a low-to-medium radioactivity operation space, allowing personnel to manually disassemble the upper and middle sections of the valve core. Thus, the first enclosure can both meet the safety requirements for manual disassembly and enable automated disassembly of highly radioactive materials, achieving dual utilization of the same space.

[0024] The second chamber is connected to the hot chamber and other subsequent processing equipment, serving as an automated transport operation space. Therefore, its interior is connected and interconnected with the hot chamber atmosphere. This equipment, by setting up receiving and transporting devices and sealing devices to alternately seal the channel, can ensure that the first and second chambers are always separated, preventing the hot chamber atmosphere from directly affecting the first chamber. At the same time, it can also use the receiving and transporting devices sealed in the channel to receive each section of the valve core, ensuring the flow of materials between the first and second chambers.

[0025] This equipment achieves disassembly based on the structural characteristics of the ground-penetrating valve and the characteristics of the horizontal distribution of radiation. It has the flexibility of manual disassembly, while also meeting the requirements of high efficiency and safety. It can be installed outside the hot chamber to avoid affecting the containment of the hot chamber, and at the same time, it does not occupy much space in the hot chamber. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the internal structure of the valve dismantling device in Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the external structure of the valve dismantling device in Embodiment 1 of the present invention;

[0028] Figure 3 This is a schematic diagram of the operating device of the valve dismantling equipment in Embodiment 1 of the present invention;

[0029] Figure 4 This is a schematic diagram of the receiving and transporting device of the valve dismantling equipment in Embodiment 1 of the present invention;

[0030] Figure 5 This is a front view schematic diagram of the exterior of the valve dismantling device housing in Embodiment 1 of the present invention;

[0031] Figure 6 This is a side view of the exterior of the valve dismantling device housing in Embodiment 1 of the present invention;

[0032] Figure 7 This is a front view schematic diagram of the exterior of the shield of the valve dismantling device in Embodiment 1 of the present invention;

[0033] Figure 8 This is a side view of the outside of the shield of the valve disassembly device in Embodiment 1 of the present invention.

[0034] In the diagram: 1. First housing; 11. Operating device; 111. Upper clamping platform; 112. Lower clamping platform; 113. Lifting drive mechanism; 1131. First driving component; 1132. Screw jack; 1133. Drive shaft; 1134. Guide column; 114. Fixed bracket; 115. Servo motor; 12. Interface; 13. Glove hole; 14. Inlet filter; 15. Exhaust filter; 2. Second housing; 21. Receiving and transporting device; 211. Transport vehicle; 2111, Chassis; 2112, Receiving Tank; 212, Lifting Mechanism; 213, Transport Track; 214, Second Drive Component; 215, Track Support; 3, Passageway; 31, Enclosure Device; 311, Shielding Block; 312, Transmission Mechanism; 4, Shielding Body; 41, Shielding Door; 42, Protective Door; 43, Operating Platform; 44, Ladder; 45, Mobile Trolley; 5, Dose Rate Detector; 6, Sealed Inspection Door; 7, Lighting Fixtures; 8, Inner View Window; 9, Outer View Window. Detailed Implementation

[0035] The technical solutions of the invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without creative effort are within the scope of the invention.

[0036] In the description of this invention, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of the description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Example 1

[0040] like Figure 1 and Figure 2 As shown, the valve disassembly equipment of this embodiment includes a first housing 1 and a second housing 2. The first housing 1 and the second housing 2 are separated from each other and connected by a channel 3. The first housing 1 is provided with an operating device 11, which is used to automatically disassemble the middle and lower sections of the valve core to be disassembled, and to clamp the valve core to a manual operation position. The manual operation position is used to manually disassemble the upper and middle sections of the valve core. The second housing 2 is connected to the subsequent processing equipment. The second housing 2 is provided with a receiving and transporting device 21, which is used to enter the channel 3 before the lower, middle and upper sections of the valve core are disassembled, to close the channel 3 and receive the lower, middle and upper sections of the valve core, and to exit the channel 3 and transport the lower, middle and upper sections of the valve core after receiving the lower, middle and upper sections of the valve core. The channel 3 is provided with a closing device 31, which is used to close the channel 3 after the receiving and transporting device 21 exits the channel 3.

[0041] The first housing 1 provided by this equipment serves as a disassembly operation space. When the valve core is entirely within the disassembly operation space, the operating device 11 inside automatically disassembles the steel ball clips between the middle and lower sections of the valve core, causing the lower section of the valve core to detach. The lower section only stays briefly in the first housing 1 before entering the second housing 2 to ensure that the radioactivity level in the first housing 1 is not too high.

[0042] After the lower section is disassembled, only the upper and middle sections of the valve core remain in the disassembly operation space. Both sections are moderately radioactive. Therefore, at this point, the first housing 1 serves as a low-to-medium radioactivity operation space, allowing personnel to manually disassemble the upper and middle sections of the valve core. Thus, the first housing 1 can meet the safety requirements for manual disassembly while also enabling automated disassembly of highly radioactive materials, achieving dual utilization of the same space.

[0043] The second chamber 2 is connected to the hot chamber and other subsequent processing equipment, serving as an automated transport operation space. Therefore, its interior is connected and interconnected with the hot chamber atmosphere. By setting up a receiving and transporting device 21 and a sealing device 31 to alternately seal the channel 3, this equipment can ensure that the first chamber 1 and the second chamber 2 are always separated, preventing the hot chamber atmosphere from directly affecting the first chamber 1. At the same time, it can also use the receiving and transporting device 21 sealed in the channel 3 to receive each section of the valve core, ensuring the flow of materials between the first chamber 1 and the second chamber 2.

[0044] This equipment achieves disassembly based on the structural characteristics of the ground-penetrating valve and the characteristics of the horizontal distribution of radiation. It has the flexibility of manual disassembly, while also meeting the requirements of high efficiency and safety. It can be installed outside the hot chamber to avoid affecting the containment of the hot chamber, and at the same time, it does not occupy much space in the hot chamber.

[0045] In this embodiment, the operating device 11 includes an upper clamping platform 111, a lower clamping platform 112, and a lifting drive mechanism 113. The upper clamping platform 111 is used to clamp the upper section of the valve core, and the lower clamping platform 112 is used to clamp the middle section of the valve core. The driving end of the lifting drive mechanism 113 is connected to the upper clamping platform 111 and the lower clamping platform 112 respectively, and is used to drive the two to lift and lower, so that the upper and middle sections of the valve core clamped by the two move relative to each other, thereby allowing the lower section of the valve core to disengage from the middle section, and causing the upper and middle sections of the valve core clamped by the two to move synchronously, thereby reaching the manual operation position.

[0046] The lower and middle sections of the valve core of the ground valve are connected by a steel ball buckle. The buckle can be disassembled by bringing the upper and middle sections close to each other. Therefore, in this embodiment, when the buckle is disassembled, the lifting drive mechanism 113 drives the upper clamping platform 111 to move down while the lower clamping platform 112 remains stationary, thereby automatically disengaging the mechanical connection mechanism between the middle and lower sections of the valve core.

[0047] In this embodiment, the lifting drive mechanism 113 includes a first drive component 1131 and a screw jack 1132. The first drive component 1131 is disposed outside the first housing 1. This external placement not only facilitates the disassembly, maintenance, and installation of the first drive component 1131 but also avoids the effects of radiation and extends its service life. The screw jack 1132 is located inside the first housing 1. The drive end of the first drive component 1131 penetrates the first housing 1 and connects to the screw jack 1132. The upper clamping platform 111 and the lower clamping platform 112 are connected to the lifting shaft of the screw jack 1132. The first drive component 1131 drives the screw jack 1132, causing both components to lift and lower.

[0048] Two sets of the first driving component 1131 and the screw jack 1132 can be provided, which are used to drive the upper clamping platform 111 and the lower clamping platform 112 respectively. Each set of screw jacks 1132 can be provided with two lifting shafts, which connect the two ends of the upper clamping platform 111 / lower clamping platform 112. The two lifting shafts of each set of screw jacks 1132 can be connected by a transmission shaft 1133, so that they can run synchronously under the drive of the first driving component 1131.

[0049] The lifting drive mechanism 113 also includes multiple guide columns 1134 for guiding the lifting of the upper clamping platform 111 and the lower clamping platform 112. The operating device 11 also includes a fixed bracket 114, on which each guide column 1134 and the lifting shaft are connected to provide support for the upper clamping platform 111 and the lower clamping platform 112. The lifting drive mechanism 113 adopts a screw jack 1132, which has the advantages of self-locking, high precision, and strong stability, ensuring smooth reception of the valve core and stable up and down movement, while also having a compact structure that saves space in the housing.

[0050] In this embodiment, servo motors 115 can be installed on the upper clamping platform 111 and the lower clamping platform 112 to drive the lead screw to move, thereby clamping and releasing the valve core segments. Specifically, the upper clamping platform 111 is used to initially support the entire valve core, and later only clamps the upper segment. The upper segment of the valve core is clamped and released by the lead screw driven by the servo motor 115 mounted on the platform. The lower clamping platform 112 is used to support the middle segment of the valve core. The middle segment of the valve core is clamped and released by the lead screw driven by the servo motor 115 mounted on the platform.

[0051] In this embodiment, the upper clamping platform 111 and the lower clamping platform 112 have roughly the same structure. Both clamping platforms mainly include two clamping rings, a lead screw and nut pair, a linear guide rail, a coupling, a commutator, a drive shaft, and the aforementioned servo motor 115. The servo motor 115 is driven by a cable chain inside the first housing 1 and an electrical connector on the side wall of the first housing 1. The two clamping rings have a crescent-shaped structure, or a C-shaped structure, with their openings facing each other. After docking, they form a circular area for clamping the valve core. Each clamping ring has a nut, which is threadedly connected to a lead screw. The servo motor 115 drives the drive shaft, which drives the lead screw. The nuts then drive the two clamping rings to move along the linear guide rail, realizing the clamping and releasing actions. The use of two crescent-shaped clamping rings can better fit the outer dimensions of the valve core, and in conjunction with the movement of the lead screw and nut pair, the valve core can be effectively clamped.

[0052] In this embodiment, the first housing 1 is also provided with a docking interface 12, which can be closedly penetrated through the top wall of the first housing 1 for docking with pre-processing equipment such as hoisting equipment and maintenance containers to receive valve cores entering the first housing 1. At the same time, it can also serve as a guide structure for guiding and initially positioning the received valve cores so that the valve cores can fall smoothly onto the upper clamping platform 111. The docking interface 12, the upper clamping platform 111, the lower clamping platform 112, and the channel 3 are arranged in the same vertical line from top to bottom. This arrangement allows the valve cores to move by gravity when entering the first housing 1 and when each section enters the second housing 2 after disassembly, avoiding the need for additional transfer components.

[0053] In this embodiment, the receiving and transporting device 21 includes a transport vehicle 211 and a lifting mechanism 212. The transport vehicle 211 includes a frame 2111 and a receiving bucket 2112. The receiving bucket 2112 is movably connected to the frame 2111 in a vertical direction. The lifting mechanism 212 is located below the channel 3, and more specifically, below the transport track 213 of the transport vehicle 211. It is used to lift the receiving bucket 2112 of the transport vehicle 211 located in the channel 3, so that the receiving bucket 2112 enters the channel 3 to close the channel 3 and receive the lower, middle, and upper sections of the valve core. In this embodiment, since the lifting mechanism 212 only lifts the transport vehicle 211 located in the channel 3, it avoids interfering with the movement of the transport vehicle 211. It also simplifies the lifting structure. Furthermore, there is only a simple lifting and lowering connection between the frame 2111 of the transport vehicle 211 and the receiving bucket 2112, which is a simple mechanical structure without an electrical control structure. Therefore, it can prevent the transport vehicle 211 from being affected by radiation and unable to operate.

[0054] In this embodiment, the lifting mechanism 212 can adopt a screw lifting structure, mainly composed of a screw jack and a support. Its driving component can also be located outside the second chamber 2, with the driving end penetrating through one side of the outer wall of the second chamber 2 and connected to the screw jack to avoid interference and facilitate inspection and maintenance. The lifting mechanism 212, in conjunction with the transport vehicle 211 and the transport track 213, can simultaneously meet the movement requirements of the receiving bucket 2112 in both vertical and horizontal directions. The compact structure saves space inside the box.

[0055] In this embodiment, the receiving and transporting device 21 further includes a transport track 213 and a second driving member 214. The transport track 213 is arranged below the channel 3 and between the subsequent processing equipment. The transport vehicle 211 is set on the transport track 213. A sprocket assembly is arranged parallel to the side of the transport track 213. The transmission chain of the sprocket assembly is connected to the transport vehicle 211. The second driving member 214 is set outside the second housing 2. Its driving end passes through the side wall of the second housing 2 and is connected to the sprocket assembly. Specifically, the driving end is connected to the drive sprocket of the sprocket assembly. The drive chain is driven to move by the rotation of the drive sprocket, so as to drive the transport vehicle 211 to reciprocate along the transport track 213 through the transmission chain, thereby transporting the lower, middle and upper sections of the valve core to the subsequent processing equipment.

[0056] In this embodiment, the receiving and transporting device 21 also includes a track support 215, which is disposed below the transport track 213 to provide structural support for the transport track 213, the lifting mechanism 212 and the transport vehicle 211.

[0057] In this embodiment, the sealing device 31 includes a shielding block 311, a transmission mechanism 312, and a third driving member. The transmission mechanism 312 restricts the shielding block 311 from moving along the surface of the second housing 2 that communicates with the channel 3. The third driving member is disposed outside the second housing 2, and its driving end passes through the second housing 2 and is connected to the transmission mechanism 312 so that it drives the shielding block 311 to move to close or open the channel 3, thereby realizing the opening and closing of the channel 3 between the two housings. When the shielding block 311 is closed, it plays the role of shielding radiation.

[0058] In this embodiment, shielding bodies 4 are provided on the outside of the first housing 1, the outside of the second housing 2, and between the first housing 1 and the second housing 2 for radiation protection. The panel corresponding to the manual operation position in the first housing 1 is a tempered glass panel with a glove hole 13 for manually inserting a disassembly tool into the first housing 1 to disassemble the mechanical connection between the upper and middle sections of the valve core. The shielding body 4 outside the first housing 1 has an openable shielding door 41 corresponding to the manual operation position to close the glove hole 13.

[0059] The shielding body 4 consists of multiple carbon steel plates of a certain thickness, used to provide shielding protection. The top of the shielding body has an interface corresponding to the location of the interface 12, used for docking with the maintenance container. The shielding door 41 is closed to provide shielding protection when the middle and lower sections of the valve core are automatically disassembled. It can be opened by a motor when personnel manually disassemble the upper and middle sections of the valve core through the glove hole.

[0060] Both the first enclosure 1 and the second enclosure 2 are sealed stainless steel shells. Each enclosure 1 and enclosure 2 is equipped with a sealed inspection door 6 and an inner viewing window 8. The shielding body 4 is also equipped with a protective door 42 corresponding to the sealed inspection door 6 of the first enclosure 1 and the second enclosure 2, and an outer viewing window 9 corresponding to each inner viewing window 8. The sealed inspection door 6 and the protective door 42 are aligned internally and externally, serving as access for personnel during maintenance and for replacing parts within the enclosure. The inner viewing window 8 and the outer viewing window 9 are aligned internally and externally, used in conjunction to allow personnel to observe the valve core disassembly process from outside the enclosure. Both the first enclosure 1 and the second enclosure 2 are equipped with lighting fixtures 7 to provide sufficient illumination for personnel observation.

[0061] In this embodiment, the device also includes a controller and a dose rate detector 5. The dose rate detector 5 in this embodiment is a gamma dose monitoring probe. The dose rate detector 5 is located inside the first housing 1 and is used to detect the dose rate level in the first housing 1. The shielding door 41 is equipped with a trigger button, which is electrically connected to the controller. The trigger button is used to send a signal to the controller after being manually triggered. The controller is electrically connected to the dose rate detector 5 and the shielding door 41. The controller is used to open the shielding door 41 after determining that the received dose rate level meets the set requirements and receiving the signal from the trigger button. The set requirements can be preset according to the situation to ensure the safety of the operator. That is, the door will only be opened when the safe operation requirements are met and someone presses the trigger button to open the shielding door 41. Specifically, the controller can control the output of the motor of the shielding door 41 to realize the opening and closing of the shielding door 41.

[0062] In this embodiment, the equipment also includes an operating platform 43, a ladder 44, and a mobile trolley 45. The operating platform 43 has two layers, located on top of the first housing 1 and between the first housing 1 and the second housing 2, respectively. It is equipped with safety railings for personnel to assist in the docking of the container with the equipment at the top shield 4, and for manually disassembling the upper and middle sections of the valve core at the first housing 1. The aforementioned trigger buttons can be integrated into a control panel or other equipment and located on the operating platform 43. The ladder 44 serves as the connecting passage between the ground, upper, and lower operating platforms 43. The mobile trolley 45 is an auxiliary platform for personnel to observe from the viewing window 9 of the second housing 2.

[0063] In this embodiment, the first housing 1 is also provided with an air inlet filter 14 and an air outlet filter 15, which are connected to the inside of the first housing 1 from the outside. They are used to filter the airflow flowing into and out of the first housing 1, respectively, to provide negative pressure control and purification of polluted atmosphere.

[0064] This equipment addresses the problem of inefficient disassembly of ground-penetrating valves within the hot chamber. It consists of a shielded operating box located outside the hot chamber and connected to it, enabling remote reception of the valve core and automatic disassembly. Personnel can also manually disassemble the valve core via the control panel near the shielded operating box. Finally, the disassembled valve core segments are packed into barrels and transported to the hot chamber for further processing. Based on the horizontal distribution characteristics of the valve core's radioactivity, the shielded operating box employs an upper and lower layer design to achieve radiation isolation.

[0065] This equipment enables the reception of high-level radioactive waste from ground-penetrating valves and the dismantling of personnel near the hot chamber, while maintaining communication with the atmosphere of the hot chamber and maintenance container. This ensures the containment of radioactive atmosphere contaminated by the valve core, and the shield 4 ensures radiation protection for the operators.

[0066] Example 2

[0067] The valve disassembly method of this embodiment uses the valve disassembly equipment in Embodiment 1, and the method includes the following steps:

[0068] Before the valve core enters the first housing 1, the control sealing device 31 opens the channel 3 so that the receiving and transporting device 21 can enter the channel 3 and the control operating device 11 receives the valve core.

[0069] The control and operation device 11 disassembles the middle and lower sections of the valve core. The receiving and transporting device 21, which receives the lower section of the valve core, exits the channel 3. Then, the control and sealing device 31 seals the channel 3, and the receiving and transporting device 21 transports the lower section of the valve core to the subsequent processing equipment.

[0070] After the receiving and transporting device 21 returns, the control sealing device 31 opens the channel 3 to allow the receiving and transporting device 21 to enter the channel 3. The control operating device 11 clamps the valve core to the manual operation position. After the manual operation is completed, the receiving and transporting device 21 that has received the middle section of the valve core exits the channel 3. The control sealing device 31 closes the channel 3, and the receiving and transporting device 21 transports the middle section of the valve core to the subsequent processing equipment.

[0071] After the receiving and transporting device 21 returns, the control sealing device 31 opens the channel 3 to allow the receiving and transporting device 21 to enter the channel 3. The control operating device 11 releases the upper section of the valve core. The receiving and transporting device 21, having received the upper section of the valve core, exits the channel 3. The sealing device 31 closes the channel 3, and the receiving and transporting device 21 transports the upper section of the valve core to the subsequent processing equipment.

[0072] Example 3

[0073] The valve processing system of this embodiment is used for the receiving, disassembly, and transfer of underground valves. It includes hoisting equipment, a maintenance container, a hot chamber, and the valve disassembly equipment in Embodiment 1. The hoisting equipment is used to hoist the maintenance container to the valve disassembly equipment. The outlet of the maintenance container is detachably connected to the valve disassembly equipment to accommodate the valve core and to transport the valve core to the valve disassembly equipment. The valve disassembly equipment is used to disassemble the valve core and transport each segment of the valve core to the hot chamber in sequence for preparation.

[0074] The processing procedure of the processing system in this embodiment is as follows:

[0075] According to the model of the ground-penetrating valve core to be transported, the receiving slot (i.e., the clamping area between the two crescent-shaped clamping rings) of the upper clamping platform 111 in the first box 1 is adjusted to an appropriate size to receive the ground-penetrating valve core; the sealing device 31 opens the channel 3, the transport vehicle 211 in the second box 2 transports the receiving bucket 2112 to the bottom of the channel 3, and the lifting mechanism 212 lifts the receiving bucket 2112 to a suitable height to wait for the valve core to be received;

[0076] Using hoisting equipment, the valve body, carried by a maintenance container, is lifted to the top of the shield 4 of the valve dismantling equipment to complete the docking of the interface.

[0077] Maintenance personnel operate the inspection container and open the docking interface between the inspection container and the valve dismantling equipment;

[0078] The hoisting system inside the maintenance container hoists the valve core that needs to be disassembled into the first box 1 of the valve disassembly equipment. The upper clamping platform 111 inside the first box 1 receives the valve core that needs to be disassembled. The maintenance container hoisting system is then retracted, and personnel close the docking interface with the valve disassembly equipment.

[0079] The operating device 11 clamps and moves the valve core so that the lower section of the valve core enters the receiving and transporting device 21. Specifically, the upper clamping platform 111 clamps the upper section of the valve core, and the lower clamping platform 112 clamps the middle section of the valve core. At the same time, the upper clamping platform 111 and the lower clamping platform 112 are operated to move the valve core as a whole downward, and the bottom part of the lower section of the valve core is lowered into the receiving bucket 2112 in the channel 3.

[0080] Then, the operating device 11 disassembles the middle and lower sections of the valve core. Specifically, the upper clamping platform 111 clamps the upper section of the valve core and moves it downward, while the lower clamping platform 112 remains stationary. The internal connecting mechanism of the valve core (between the lower and middle sections) automatically disengages, allowing the lower section of the valve core to fall into the receiving bucket 2112. The receiving and transporting device 21, which receives the lower section of the valve core, exits the channel 3. The sealing device 31 seals the channel 3. The receiving and transporting device 21 transports the lower section of the valve core to the subsequent processing equipment. Specifically, the receiving bucket 2112 is lowered to its lowest height by the lifting mechanism 212, and the sealing device 31 moves below the channel 3, so that the two boxes achieve shielding and atmosphere isolation. The transport vehicle 211 transports the receiving bucket 2112 to the hot chamber, and the hot chamber crane lifts the receiving bucket 2112 containing the valve core components and loads a new receiving bucket 2112 onto the transport vehicle 211.

[0081] After the receiving and transporting device 21 returns, the sealing device 31 opens the channel 3, and the receiving and transporting device 21 re-enters the channel 3. The γ dose monitoring probe in the first box 1 is activated to detect the dose rate level. When the detection result of the γ dose monitoring probe is qualified, the shielding door 41 outside the first box 1 is opened, and personnel approach to prepare for operation. The operating device 11 clamps the valve core to the manual operation position for disassembling the upper and middle sections of the valve core. Specifically, the upper clamping platform 111 and the lower clamping platform 112 are moved down to an appropriate height at the same time. Personnel operate the disassembly tool through the glove hole to disassemble the connecting mechanism between the upper and middle sections of the valve core. Then, the lower clamping platform 112 releases the middle section of the valve core, allowing the middle section of the valve core to fall into the receiving bucket 2112. After the manual operation is completed, the receiving and transporting device 21 that received the middle section of the valve core exits the channel 3, the sealing device 31 closes the channel (3), and the receiving and transporting device 21 transports the middle section of the valve core to the hot chamber (subsequent processing equipment).

[0082] After the receiving and transporting device 21 returns, the sealing device 31 opens the channel 3, and the receiving and transporting device 21 enters the channel 3. The operating device 11 releases the upper section of the valve core. Specifically, the operating clamping platform 111 moves down, releasing the upper section of the valve core so that it falls into the receiving bucket 2112. The receiving and transporting device 21, having received the upper section of the valve core, exits the channel 3, and the sealing device 31 closes the channel 3. The receiving and transporting device 21 then transports the upper section of the valve core to the subsequent processing equipment.

[0083] The valve disassembly process is complete after all disassembled components have been sent into the hot chamber.

[0084] The hot chamber is equipped with a hot chamber crane, a waste bin, and a new receiving bin 2112. The hot chamber crane is used to lift the receiving bin 2112 containing the disassembled valve cores of each section, put it into the waste bin to complete the final preparation, and then the hot chamber crane lifts the new receiving bin 2112 and places it on the transport vehicle 211 for the next transfer.

[0085] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A valve disassembly apparatus, characterized by: The first box (1) and the second box (2) are separated from each other and are communicated through the channel (3), The first box (1) is provided with an operating device (11) for automatically disassembling the middle section and the lower section of the valve core of the valve to be disassembled and clamping the valve core to a manual operation position for manually disassembling the upper section and the middle section of the valve core, wherein the valve core is the valve core of the ground penetrating valve, the upper section and the middle section of the valve core are medium radioactive, and the lower section of the valve core is high radioactive; The second box (2) is communicated with a subsequent treatment device, and the second box (2) is provided with a receiving and transporting device (21) for entering the channel (3) before the lower section, the middle section and the upper section of the valve core are disassembled, so as to close the channel (3) and receive the lower section, the middle section and the upper section of the valve core, and after receiving the lower section, the middle section and the upper section of the valve core, the receiving and transporting device (21) exits the channel (3) and is transported to the subsequent treatment device, and the subsequent treatment device is a hot cell; The channel (3) is provided with a closing device (31) for closing the channel (3) after the receiving and transporting device (21) exits the channel (3). The operating device (11) comprises an upper clamping platform (111), a lower clamping platform (112) and a lifting driving mechanism (113), 2. The valve disassembly apparatus of claim 1, wherein: The upper clamping platform (111) is used for clamping the upper section of the valve core, and the lower clamping platform (112) is used for clamping the middle section of the valve core, The driving end of the lifting driving mechanism (113) is connected with the upper clamping platform (111) and the lower clamping platform (112) respectively, and is used for driving the two to lift respectively, so that the upper section and the middle section of the valve core clamped by the two relatively move, so that the lower section of the valve core is separated from the middle section, and the upper section and the middle section of the valve core clamped by the two synchronously move, so as to reach the manual operation position. The lifting driving mechanism (113) comprises a first driving member (1131) and a screw lifter (1132), 3. The valve disassembly apparatus of claim 2, wherein: The first driving member (1131) is arranged outside the first box (1), the screw lifter (1132) is located in the first box (1), and the driving end of the first driving member (1131) penetrates through the first box (1) and communicates with the screw lifter (1132), The upper clamping platform (111) and the lower clamping platform (112) are connected to the lifting shaft of the screw lifter (1132) and are lifted by the first driving member (1131) driving the screw lifter (1132). The first box (1) is further provided with a docking port (12), 4. The valve disassembly apparatus of claim 2, wherein: The docking port (12) penetrates through the top wall of the first box (1) in a closable manner, is used for docking with a front-end treatment device, and receives the valve core into the first box (1), The docking port (12), the upper clamping platform (111), the lower clamping platform (112) and the channel (3) are arranged in sequence from top to bottom on the same vertical line. The receiving and transporting device (21) comprises a transport vehicle (211) and a jacking mechanism (212), 5. The valve disassembly apparatus of claim 1, wherein: The transport vehicle (211) comprises a vehicle frame (2111) and a receiving barrel (2112), and the receiving barrel (2112) is movably connected to the vehicle frame (2111) in the vertical direction, ​ The jacking mechanism (212) is arranged below the channel (3) and is used to jack up the receiving barrel (2112) of the transport vehicle (211) at the channel (3) so that the receiving barrel (2112) enters the channel (3) to close the channel (3) and receive the lower, middle and upper sections of the valve core.

6. The valve disassembly apparatus of claim 5, wherein: The receiving transport device (21) further comprises a transport track (213) and a second driving member (214), The transport track (213) is arranged below the channel (3) and between the subsequent processing devices, the transport vehicle (211) is arranged on the transport track (213), and a sprocket assembly is arranged in parallel on the side of the transport track (213), and the transmission chain of the sprocket assembly is connected with the transport vehicle (211), The second driving member (214) is arranged outside the second box (2), the driving end of the second driving member (214) penetrates through the second box (2) and is connected with the sprocket assembly, so that the transport vehicle (211) is driven to move back and forth along the transport track (213) through the transmission chain, thereby transporting the lower, middle and upper sections of the valve core to the subsequent processing devices.

7. The valve disassembly apparatus of claim 1, wherein: The closing device (31) comprises a shielding block (311), a transmission mechanism (312) and a third driving member, The transmission mechanism (312) limits the movement of the shielding block (311) along the surface of the second box (2) that communicates with the channel (3), The third driving member is arranged outside the second box (2), and the driving end of the third driving member penetrates through the second box (2) and is connected with the transmission mechanism (312), so that the shielding block (311) is moved to close or open the channel (3).

8. The valve disassembly apparatus of claim 1, wherein: A shielding body (4) is arranged outside the first box (1), outside the second box (2) and between the first box (1) and the second box (2) for radiation protection, A glove hole (13) is arranged on the panel corresponding to the manual operation position in the first box (1) for manually inserting into the first box (1) to operate, An openable shielding door (41) is arranged in the shielding body (4) outside the first box (1) corresponding to the manual operation position for closing the glove hole (13).

9. The valve disassembly apparatus of claim 8, wherein: A controller and a dose rate detector (5) are further included, The dose rate detector (5) is arranged in the first box (1) and is used to detect the dose rate level in the first box (1), The shielding door (41) is provided with a trigger button, and the trigger button is electrically connected with the controller and is used to send a signal to the controller after being manually triggered, The controller is electrically connected with the dose rate detector (5) and the shielding door (41) and is used to open the shielding door (41) after determining that the received dose rate level meets the set requirements and receiving the signal of the trigger button.

10. The valve disassembly apparatus of claim 1, wherein: The first box (1) is further provided with an air inlet filter (14) and an air outlet filter (15) for filtering the air flowing into and out of the first box (1).

11. A method of disassembling a valve, comprising: The valve disassembly device according to any one of claims 1 to 10, the method comprises the following steps: Before the valve core enters the first box (1), the closing device (31) is controlled to open the channel (3) so that the receiving transport device (21) enters the channel (3), and the operation device (11) is controlled to receive the valve core; The control operation device (11) disassembles the middle section and the lower section of the valve core, the receiving and transporting device (21) receiving the lower section of the valve core exits the channel (3), and then the control closing device (31) closes the channel (3), and the receiving and transporting device (21) transports the lower section of the valve core to the subsequent processing equipment; After the receiving and transporting device (21) returns, the control closing device (31) opens the channel (3) to enable the receiving and transporting device (21) to enter the channel (3), the control operation device (11) clamps the valve core to the manual operation position, after the manual operation is completed, the receiving and transporting device (21) receiving the middle section of the valve core exits the channel (3), the control closing device (31) closes the channel (3), and the receiving and transporting device (21) transports the middle section of the valve core to the subsequent processing equipment; After the receiving and transporting device (21) returns, the control closing device (31) opens the channel (3) to enable the receiving and transporting device (21) to enter the channel (3), the control operation device (11) releases the upper section of the valve core, the receiving and transporting device (21) receiving the upper section of the valve core exits the channel (3), the control closing device (31) closes the channel (3), and the receiving and transporting device (21) transports the upper section of the valve core to the subsequent processing equipment.

12. A valve handling system characterized by: The valve disassembly device comprises a hoisting device, a maintenance container, a hot chamber, and the valve disassembly device according to any one of claims 1 to 10, The hoisting device is used to hoist the maintenance container to the valve disassembly device, The outlet of the maintenance container is detachably connected to the valve disassembly device, and is used to accommodate the valve core and transport the valve core to the valve disassembly device, The valve disassembly device is used to disassemble the valve core and sequentially transport each section of the valve core to the hot chamber for preparation.

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