Movable hot cell

Abstract

The embodiment of the invention relates to the technical field of small chambers with additional protection, in particular to a movable hot chamber which comprises a base body, a wall body and a cover body. The seat body can be detachably and fixedly connected with a wall body, and after the seat body is fixedly connected with the wall body, the seat body and the wall body form a shielding object accommodating space and a test space for accommodating equipment for testing a to-be-tested object. According to the movable hot chamber provided by the embodiment of the invention, the hot chamber can be modularly transported to a required place, and can be assembled and disassembled at the required place, so that a test object can be tested at the required place, the test object is prevented from being transported in a long distance, and the risk of radiation overflow caused by the test object in the long-distance transportation process is reduced; and meanwhile, a test object can be tested in time at a required place, and the operation condition of the equipment is judged in real time according to the test condition, so that the processing opportunity of equipment failure is prevented from being delayed.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of small chambers with additional protection, and in particular to a movable hot chamber. Background Art

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.

[0003] Spent fuel assemblies produced in nuclear facilities and materials contaminated with radioactive substances after irradiation need to be processed in a hot chamber for post-irradiation performance testing and experiments.

[0004] As a special facility for handling radioactive materials, hot cells need to meet construction requirements such as shielding, sealing and isolation to meet the needs of radiation protection and ensure the safety of operators. However, since traditional hot cells are usually fixed structures, it is difficult to detect and test radioactive materials in a timely manner, which is not conducive to emergency response under accident conditions. Summary of the invention

[0005] A brief overview of the present application is provided below in order to provide a basic understanding of certain aspects of the present application. It should be understood that this overview is not an exhaustive overview of the present application. It is not intended to identify the key or important parts of the present application, nor is it intended to limit the scope of the present application. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] The embodiment of the present application provides a movable hot chamber, in which a test object can be tested, and the movable hot chamber includes: a base, a wall, and a cover. The base can be detachably fixedly connected to the wall. After the base is fixedly connected to the wall, the base and the wall form a shielding accommodating space and a test space for accommodating equipment for testing the test object, and the test object is tested in the test space; a plurality of functional channels or installation holes are formed on the wall, and the functional channels or installation holes are used to process the test object or observe the processing of the test object; the cover is configured to close the test space and the shielding accommodating space.

[0007] The movable hot chamber in the embodiment of the present application modularizes the hot chamber into a detachable base, wall and cover, so that the hot chamber can be modularly transported to a desired location according to the needs of actual applications, and assembled and disassembled at the desired location, so that the test object can be tested at the desired location, avoiding long-distance transportation of the test object, thereby reducing the risk of radiation spillover caused by the test object during long-distance transportation; at the same time, the test object can be tested in a timely manner at the desired location, and the operating status of the equipment can be judged in real time according to the test situation, avoiding delays in the timing of handling equipment failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Other objects and advantages of the present application will become apparent from the following description of the embodiments of the present application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the present application.

[0009] Figure 1 It is a schematic structural diagram of a movable heat chamber according to an embodiment of the present application.

[0010] Description of reference numerals:

[0011] 10. Base; 20. Wall; 201. First layer wall; 202. Second layer wall; 203. Third layer wall; 21. Shielding material accommodating space; 22. Test space; 23. Transfer channel; 24. Observation window mounting hole; 25. Manipulator mounting hole; 26. Liquid outflow port; 30. Cover; 31. First cover; 32. Second cover; 40. Observation window; 50. Manipulator; 60. Support; 70. Test bench.

[0012] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner that does not affect the reader's understanding. DETAILED DESCRIPTION

[0013] Exemplary embodiments of the present application will be described below in conjunction with the accompanying drawings. For the sake of clarity and conciseness, not all features of the actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the process of developing any such actual implementation in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and these constraints may vary from implementation to implementation. In addition, it should be understood that although the development work may be very complex and time-consuming, it is only a routine task for those skilled in the art who benefit from the content of this application.

[0014] It is also necessary to explain here that, in order to avoid obscuring the present application due to unnecessary details, only the device structure and / or processing steps closely related to the scheme according to the present application are shown in the accompanying drawings, while other details that are not very relevant to the present application are omitted.

[0015] The inventors of the present application have discovered that since the test objects that need to be processed in a hot chamber are usually radioactive materials, they need to meet strict radiation protection requirements during the transportation process to the hot chamber for testing, which is difficult and inefficient. Therefore, it is difficult to achieve timely detection and testing of the test objects using traditional fixed hot chambers, and there are defects such as insufficient flexibility and maneuverability.

[0016] Based on this, the embodiment of the present application provides a movable hot chamber, in which the test object can be tested, such as Figure 1 As shown, Figure 1 The structural schematic diagram of a movable hot chamber of an embodiment of the present application is shown, and the hot chamber comprises: a base 10, a wall 20 and a cover 30. The base 10 can be detachably fixedly connected to the wall 20. After the base 10 is fixedly connected to the wall 20, the base 10 and the wall 20 form a shielding accommodating space 21 and a test space 22 for accommodating equipment for testing the test object, and the test object is tested in the test space 22; a plurality of functional channels or installation holes are formed on the wall 20, and the functional channels or installation holes are used to process the test object or observe the processing of the test object; the cover 30 is configured to close the test space 22 and the shielding accommodating space 21.

[0017] The embodiment of the present application modularizes the hot chamber into a detachable base 10, a wall 20 and a cover 30, so that the hot chamber can be modularly transported to a desired location according to the needs of actual applications, and assembled and disassembled at the desired location, so that the test object can be tested at the desired location, avoiding long-distance transportation of the test object, thereby reducing the risk of radiation spillover caused by the test object during long-distance transportation; at the same time, the test object can be tested in a timely manner at the desired location, and the operating status of the equipment can be judged in real time according to the test situation, avoiding delays in the timing of handling equipment failures.

[0018] In some embodiments, the multiple functional channels or installation holes may include: a transfer channel 23 formed on the wall 20, through which the test object enters the test space 22; an observation window installation hole 24 formed on the wall 20, in which the observation window 40 is installed, so as to observe the test space 22 through the observation window 40; a manipulator installation hole 25 formed on the wall 20, in which the manipulator 50 is installed, so as to use the manipulator 50 to operate the test equipment and the test object in the test space 22. In this embodiment, the transfer channel 23 is reserved on the wall 20, and the installation holes for installing the observation window 40 and the manipulator 50 are installed, so that the observation window 40 and the manipulator 50 can be transported separately, and then installed on the wall 20 after being transported to the required location, thereby realizing the rapid transportation, assembly and disassembly of the hot chamber.

[0019] The transfer channel 23 , the observation window installation hole 24 , and the manipulator installation hole 25 are arranged to be sealed with the wall 20 , for example, by using a sealing ring for sealing to prevent leakage of the shielding material filled in the shielding material accommodating space 21 .

[0020] The transfer channel 23 can be configured to be connected to an external device for transporting the test object, and the transfer channel 23 and the external device are provided with an interlocking mechanism. The interlocking mechanism is configured so that the test object can be taken out of the transfer channel 23 only after the transfer channel 23 and the external device are completely locked, so as to avoid the inside of the hot chamber being connected to the outside, resulting in leakage of radioactive substances inside the test space 22.

[0021] The observation window 40 may be a liquid observation window filled with zinc bromide solution to shield radiation, thereby ensuring the safety of the operator when observing the test space 22 through the observation window 40 , and at the same time, facilitating installation and disassembly.

[0022] The manipulator 50 can be a master-slave manipulator, which includes a master hand, a slave hand and a wall bushing. The wall bushing runs through the manipulator installation channel 25 and is installed in the wall 20. The master hand is connected to one end of the wall bushing located outside the hot room, and the slave hand is connected to one end of the wall bushing located inside the test space 22, so that the master hand drives the slave hand to realize remote operation, ensuring that the operator can operate the test equipment and test objects in the test space 22 at a safe distance, thereby improving the safety of the operation. In addition, the slave hand is provided with a sleeve to prevent the slave hand from being contaminated.

[0023] In some embodiments, the wall 20 may include a first wall 201 and a second wall 202, the first wall 201 is arranged outside the second wall 202, the first wall 201, the second wall 202 and the base 10 form a shielding material accommodation space 21; the second wall 202 and the base 10 form a test space 22; a plurality of functional channels or installation channels are formed between the first wall 201 and the second wall 202. In this embodiment, two layers of walls are arranged, and a shielding material accommodation space 21 is formed between the two layers of walls for accommodating shielding materials, so as to realize double-layer radiation shielding by using the walls and the shielding materials, thereby meeting the radiation protection needs of operators working for a long time.

[0024] For example, the first wall 201 and the second wall 202 may be made of stainless steel plates to shield radiation.

[0025] In some embodiments, the wall 20 may further include a third wall 203, which is disposed between the first wall 201 and the second wall 202 to enhance the radiation shielding effect and, at the same time, reinforce the overall structure of the hot chamber to improve the stability of the hot chamber.

[0026] In some embodiments, the cover 30 may include a first cover 31 and a second cover 32, the first cover 31 and the wall 20 are detachably connected, the first cover 31 is configured to enclose the test space 22, and the second cover 32 is configured to enclose the shielding storage space 21. In this embodiment, the test space 22 and the shielding storage space 21 are sealed by the first cover 31 and the second cover 32, wherein the first cover 31 prevents leakage of radioactive materials inside the test space 22, and the second cover 32 is used to reduce the volatilization of the shielding filled in the shielding storage space 21.

[0027] The first cover body 31 is formed with a lifting hole so that the equipment inside the test space 22 can enter through the lifting hole and be arranged in the test space 22. In addition, the lifting hole is also configured to be able to open the hot chamber in an emergency situation to cope with sudden accidents and improve the safety of the hot chamber.

[0028] For example, the first cover body 31 may be made of cast iron and concrete slabs, and the second cover body 32 may be made of steel plate inserts, so as to ensure that the first cover body 31 and the second cover body 32 have good strength and corrosion resistance.

[0029] In some embodiments, the movable heat chamber may further include a support member 60, which is disposed in the shielding accommodating space 21 and is configured to provide support for the functional components installed in the installation channel to ensure the stability of the functional components. Figure 1 As shown, the support member 60 can provide support for the viewing window 40 .

[0030] In some embodiments, the shielding material may be a liquid, and the wall 20 is provided with a liquid outflow port 26. When the wall 20 is disassembled, the liquid is first discharged from the liquid outflow port 26. In this embodiment, liquid is used as a shielding material to fill the shielding material accommodating space 21, so as to maximize the radiation shielding effect while simplifying the structure of the hot chamber. For example, the shielding material may be water or a heavy ion aqueous solution. At the same time, by providing the liquid outflow port 26 on the wall 20, the liquid is first discharged when the hot chamber is disassembled and moved, thereby reducing the difficulty of disassembly, assembly and transportation of the hot chamber and improving efficiency.

[0031] In some embodiments, the movable hot chamber may further include a reinforcement member, which is disposed between the walls 20 and configured to reinforce the walls 20 to enhance the strength and bearing capacity of the walls 20 and enhance the overall stability of the movable hot chamber.

[0032] For example, the reinforcement member may include reinforcement ribs and reinforcement beams, which are disposed between the first layer wall 201 and the second layer wall 202 .

[0033] In some embodiments, the wall 20 and the base 10 are arranged to be sealed to prevent the shielding material filled in the shielding material accommodating space 21 from leaking.

[0034] Specifically, the wall 20 can be configured to be connected to the seat 10 through a slot, and the slot is configured to be a circular slot to enhance the sealing of the connection between the wall 20 and the seat 10 .

[0035] In some embodiments, the bottom surface of the seat body 10 can be configured so that the portion combined with the wall 20 is higher than the portion of the seat body 10 not combined with the wall 20, that is, a slope with a high middle and a low outside is formed at the position where the ground of the seat body 10 is connected to the wall 20, so as to facilitate the discharge of liquid serving as a shield and further prevent leakage of the shield.

[0036] In some embodiments, the movable thermal chamber may further include a test bench 70 , which is disposed in the test space 22 to carry the test object and other equipment required for the test.

[0037] In some embodiments, the movable hot chamber may further include a lighting system, a power supply system, a ventilation system, a hoisting system, and a waste recovery system, etc., which are arranged inside the hot chamber to assist in the test. In addition, the movable hot chamber may also include a radiation-proof camera, which is arranged to monitor whether the appearance of the hot chamber is damaged and record the inspection and test process of the test object.

[0038] The following is a specific example to further illustrate the assembly and use of the movable heat chamber in the present application.

[0039] When assembling the movable hot chamber, first fix the first wall 201, the second wall 202 and the third wall 203 on the base 10 to ensure that they are sealed and connected to the base 10 respectively; then install the observation window 40 and the manipulator 50 in the observation window installation channel 24 and the manipulator installation channel 25; then fill the shielding material accommodating space 21 with shielding material, and use the second cover 32 to close the shielding material accommodating space 21; then hoist the test bench 70 and other equipment required for the test into the test space 22 through the hoisting holes of the first cover 31, and after the setting is completed, use the first cover 31 to close the test space 22.

[0040] After the assembly is completed, the test object is transferred to the test space 22 via the transfer channel 23 using external equipment, and the test object is prepared, inspected, tested, etc. using the robot 50, and the operation inside the test space 22 is observed through the observation window 40 in combination with other visual devices set in the hot chamber.

[0041] Regarding the embodiments of the present application, it should also be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other to obtain new embodiments.

[0042] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A movable hot chamber in which a test object can be tested, characterized in that: It includes: The base, wall and cover, The base can be detachably fixedly connected to the wall. After the base is fixedly connected to the wall, the base and the wall form a shielding accommodating space and a test space for accommodating equipment for testing the test object. The test object is tested in the test space. A plurality of functional channels or installation holes are formed on the wall, and the object to be tested is processed or the processing of the object to be tested is observed by using the functional channels or installation holes; The cover is configured to seal the test space and the shielding object accommodating space.

2. The movable hot chamber according to claim 1, characterized in that The multiple functional channels or installation holes include: A transfer channel is formed on the wall, and the test object enters the test space through the transfer channel; An observation window installation channel is formed on the wall, and the observation window is installed in the observation window installation channel, so as to observe the test space through the observation window; A manipulator installation hole is formed on the wall, and the manipulator is installed in the manipulator installation hole so that the manipulator can be used to operate the test equipment and the test object in the test space.

3. The movable hot chamber according to claim 1, characterized in that The wall comprises a first layer of wall and a second layer of wall, wherein the first layer of wall is arranged outside the second layer of wall, The first layer of walls, the second layer of walls and the base form the shielding object accommodating space; the second layer of walls and the base form the test space. The plurality of functional channels or installation holes are formed between the first layer of walls and the second layer of walls.

4. The movable hot chamber according to claim 3, characterized in that The wall also includes a third wall layer, and the third wall layer is arranged between the first wall layer and the second wall layer.

5. The movable hot cell according to claim 1, characterized in that The cover body includes a first cover body and a second cover body, the first cover body is detachably connected to the wall body, and the first cover body is configured to enclose the test space; The second cover is configured to close the shielding object accommodating space.

6. The movable hot chamber according to any one of claims 1 to 5, characterized in that: It also includes a support member, which is arranged in the shielding object accommodating space and is configured to provide support for the functional components installed in the installation channel.

7. The movable hot cell according to claim 1, characterized in that The shield is a liquid, and The wall is provided with a liquid outflow outlet, and when the wall is disassembled, the liquid is first discharged from the liquid outflow outlet.

8. The movable hot cell according to claim 1, characterized in that It also includes a reinforcing member, which is arranged between the walls and is configured to reinforce the walls.

9. The movable hot cell according to claim 1, characterized in that The wall body and the seat body are arranged to be sealed.

10. The movable hot cell according to claim 1, characterized in that The bottom surface of the base is configured such that a portion combined with the wall is higher than a portion of the base not combined with the wall.

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