Device for the treatment of radioactive waste

Abstract

The embodiment of the present application relates to the field of temperature measurement, and particularly relates to a device suitable for radioactive waste treatment, which comprises a containing part, an induction coil, a cover part and a temperature measuring device. The containing part is used for containing radioactive waste, and the containing part is composed of a plurality of water cooling pipes; the induction coil is arranged to generate an induced current on the radioactive waste in the containing part to heat the radioactive waste to make it into a molten body; the cover part is arranged to close the containing part; the temperature measuring device is used for measuring the temperature of the molten body in the containing part; wherein when the temperature of the molten body is measured, the temperature measuring device is arranged to be inclined in a direction away from the inner wall of the containing part. The device suitable for radioactive waste treatment provided by the embodiment of the present application arranges the temperature measuring device to be inclined in a direction away from the inner wall of the containing part when the temperature of the molten body is measured, so that the temperature measuring device can be free from the influence of the inner wall of the containing part, and the accuracy of the temperature measurement result of the temperature measuring device is improved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of temperature measurement, and in particular to a device suitable for radioactive waste treatment. BACKGROUND

[0002] The statements herein are merely provided to give a basic understanding of the application, and are not necessarily intended to constitute the prior art.

[0003] The cold crucible is the core equipment of the high-level liquid waste glassification facility, which is used to receive the glass beads and the calcination product of the radioactive liquid waste, and heat the glass beads and the calcination product of the radioactive liquid waste to a molten state through the induced current generated by the high-frequency coil in the cold crucible, so as to finally obtain the glassification body of the radioactive liquid waste.

[0004] In order to ensure the effect of the glassification of the radioactive liquid waste, the temperature of the molten body in the cold crucible needs to be measured after the glass beads and the calcination product of the radioactive liquid waste are heated to a molten state. However, there is a problem of inaccurate measurement result in the process of measuring the temperature of the molten body in the cold crucible. SUMMARY

[0005] In the following, a brief overview of the present application is given, in order to provide a basic understanding of some aspects of the present application. It should be understood that this overview is not a comprehensive overview of the present application. It is not intended to determine the key or important parts of the present application, nor to limit the scope of the present application. Its purpose is only to give some concepts in a simplified form, as a prelude to the more detailed description discussed later.

[0006] In view of the above problem, the embodiments of the present application provide a device suitable for radioactive waste treatment, which comprises a containing member, an induction coil, a cover member and a temperature measuring device. The containing member is used to contain radioactive waste, and is composed of a plurality of water-cooled pipes; the induction coil is arranged to generate an induced current on the radioactive waste in the containing member to heat the radioactive waste to a molten state; the cover member is arranged to close the containing member; and the temperature measuring device is used to measure the temperature of the molten body in the containing member; wherein when measuring the temperature of the molten body, the temperature measuring device is arranged to be inclined away from the inner wall of the containing member.

[0007] The device suitable for radioactive waste treatment provided by the embodiments of the present application is arranged to be inclined away from the inner wall of the containing member when measuring the temperature of the molten body, so that the temperature measuring device can be free from the influence of the cooling water in the water-cooled pipes constituting the containing member, and the accuracy of the temperature measurement result of the temperature measuring device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Other objects and advantages of the present application will be apparent to those skilled in the art from the following description of embodiments of the present application, taken in conjunction with the accompanying drawings.

[0009] Figure 1 is a structural schematic view of the device for radioactive waste treatment provided by the embodiment of the present application when the temperature measuring device is arranged vertically or obliquely.

[0010] Figure 2 is a structural schematic view of the device for radioactive waste treatment provided by the embodiment of the present application when the temperature measuring device is arranged vertically or obliquely.

[0011] Legend of reference signs:

[0012] 100, device for radioactive waste treatment;

[0013] 10, containing member; 20, induction coil; 30, cover member; 40, temperature measuring device; 41, temperature measuring member; 42, mounting member; 421, mounting portion; 422, connecting portion; 4221, passage; 60, fixing member.

[0014] It should be noted that the drawings are not necessarily drawn to scale, but are merely shown in a schematic manner to facilitate understanding. DETAILED DESCRIPTION

[0015] In the following, exemplary embodiments of the present application will be described with reference to the drawings. In the description, not all features of the actual embodiments are described in order to make the description clear and brief. However, it should be appreciated that many embodiment-specific decisions must be made in the course of developing any such actual embodiment in order to implement the specific goals of the developer, such as compliance with system- and business-related constraints, which can vary from one embodiment to another. Moreover, it should be appreciated that, while the development work can potentially be very complex and time-consuming, it would be a routine undertaking for those with ordinary skill in the art having the benefit of this disclosure.

[0016] It should also be noted that, in order not to obscure the present application with unnecessary detail, only the structures of the equipment and / or the processing steps that are closely related to the solution according to the present application are shown in the drawings, and other details that are not closely related to the present application are omitted.

[0017] In the related art, the temperature measuring device for measuring the temperature of the molten material in the cold crucible is usually arranged vertically close to the inner wall of the body of the cold crucible (the distance between the temperature measuring device and the inner wall of the cold crucible is only 40 mm), but since the body of the cold crucible is composed of a plurality of water cooling pipes, the temperature measuring device arranged vertically close to the inner wall of the body of the cold crucible will be affected by the cooling water in the water cooling pipes, resulting in inaccurate measured temperature results.

[0018] To solve the above problems, the embodiment of the present application provides a device suitable for radioactive waste treatment. Figure 1 and Figure 2 , Figure 1 is a structural schematic view of the device suitable for radioactive waste treatment provided by the embodiment of the present application when the temperature measuring device is arranged in a tilted manner or in a vertical manner, Figure 2 is a structural schematic view of the device suitable for radioactive waste treatment provided by the embodiment of the present application after the temperature measuring device and the cover are assembled, the device 100 suitable for radioactive waste treatment provided by the embodiment of the present application comprises a containing member 10, an induction coil 20, a cover 30, and a temperature measuring device 40. The containing member 10 is used for containing radioactive waste, and the containing member 10 is composed of a plurality of water-cooled pipes; the induction coil 20 is arranged to generate an induced current on the radioactive waste in the containing member 10 to heat the radioactive waste into a molten body; the cover 30 is arranged to close the containing member 10; and the temperature measuring device 40 is used for measuring the temperature of the molten body in the containing member 10; wherein when the temperature of the molten body is measured, the temperature measuring device 40 is arranged in a tilted manner away from the inner wall of the containing member 10.

[0019] The device 100 suitable for radioactive waste treatment provided by the embodiment of the present application is arranged to be tilted away from the inner wall of the containing member 10 when the temperature of the molten body is measured, so that the temperature measuring device 40 can be free from the cooling water in the water-cooled pipes constituting the containing member 10, and the accuracy of the temperature measurement result of the temperature measuring device 40 is improved.

[0020] In some embodiments, the device 100 suitable for radioactive waste treatment provided by the embodiment of the present application can be a cold crucible, and the containing member 10 can be a crucible body of the cold crucible.

[0021] Referring to Figure 2 In some embodiments, the temperature measuring device 40 can comprise a temperature measuring member 41 and a mounting member 42. The temperature measuring member 41 is used for measuring the temperature of the molten body; the mounting member 42 is connected with the temperature measuring member 41 and is used for mounting the temperature measuring member 41 to the cover 30; wherein when the temperature of the molten body is measured, the temperature measuring member 41 is arranged in a tilted manner away from the inner wall of the containing member 10.

[0022] In some embodiments, the mounting member 42 is fixedly connected with the temperature measuring member 41, for example, the mounting member 42 is welded with the temperature measuring member 41.

[0023] Referring to Figure 2In some embodiments, the device 100 for radioactive waste treatment can further comprise a fixing member 60 for fixing the mounting member 42 and the cover member 30, so that the cover member 30 is stably connected with the mounting member 42. In some embodiments, the mounting member 42 is shaped to match the fixing member 60, so as to facilitate the fixing of the mounting member 42. In some embodiments, the fixing member 60 can be rotated to fix or release the mounting member 42 and the cover member 30.

[0024] Referring to Figure 1 and Figure 2 In some embodiments, when the temperature measuring member 41 is installed to the cover member 30, the temperature measuring member 41 is vertically arranged; after the temperature measuring member 41 is installed to the cover member 30, the temperature measuring member 41 is arranged to be inclined away from the inner wall of the containing member 10; during the process of melting the radioactive waste into molten material, the temperature measuring member 41 is arranged to be inclined away from the inner wall of the containing member 10 to be vertically arranged. Since the starting material needs to be put into the containing member 10 before the radioactive waste is melted, the embodiments of the present application can avoid interference with the starting material by arranging the temperature measuring member 41 to be vertically arranged during the process of melting the radioactive waste into molten material; at the same time, the temperature measuring member 41 is arranged to be vertically arranged when it is installed to the cover member 30, which facilitates the installation of the temperature measuring member 41.

[0025] In some embodiments, the mounting member 42 is arranged to enable the temperature measuring member 41 to be arranged to be inclined away from the inner wall of the containing member 10 to be vertically arranged by its own gravity. In such embodiments, by enabling the temperature measuring member 41 to be arranged to be inclined away from the inner wall of the containing member 10 to be vertically arranged by its own gravity, the use of the temperature measuring device 40 is facilitated without the need for additional operations.

[0026] In some embodiments, the mounting member 42 is arranged to be capable of relative movement with the cover member 30, so that the temperature measuring member 41 is arranged to be inclined away from the inner wall of the containing member 10 to be vertically arranged. In such embodiments, by the relative movement of the mounting member 42 and the cover member 30, the temperature measuring member 41 can be switched between the inclined arrangement and the vertical arrangement, thereby facilitating the temperature measuring member 41 to measure the temperature of the molten material and facilitating the installation of the temperature measuring member 41.

[0027] In some embodiments, after the temperature measuring member 41 is installed to the cover member 30, the fixing member 60 can be rotated to fix the mounting member 42 and the cover member 30; during the process of melting the radioactive waste into molten material, the fixing member 60 can be rotated again to release the fixing between the mounting member 42 and the cover member 30, so that the mounting member 42 can move relative to the cover member 30.

[0028] Referring to Figure 2In some embodiments, the mounting member 42 comprises a mounting portion 421 and a connecting portion 422 which are integrally formed; the connecting portion 422 forms a channel 4221, the temperature measuring member 41 is fixedly connected to the inner side of the channel 4221 and extends to the outside of the channel 4221, the mounting portion 421 is formed on the radially outer side of the connecting portion 422, and the mounting portion 421 can contact the cover member 30 to mount the temperature measuring member 41 to the cover member 30; wherein the connecting portion 422 and the mounting portion 421 are arranged to move relatively to the cover member 30. In such embodiments, the relative movement between the mounting member 42 and the cover member 30 can be achieved by the relative movement between the connecting portion 422 and the mounting portion 421 and the cover member 30.

[0029] In some embodiments, the cover member 30 is formed with a sliding groove, the connecting portion 422 and the mounting portion 421 can enter the sliding groove, and the connecting portion 422 and the mounting portion 421 can slide in the sliding groove to enable the relative movement between the connecting portion 422 and the mounting portion 421 and the cover member 30. In such embodiments, the relative movement between the connecting portion 422 and the mounting portion 421 and the cover member 30 can be achieved by the sliding of the connecting portion 422 and the mounting portion 421 in the sliding groove, and the relative movement between the mounting member 42 and the cover member 30 can be achieved by the relative movement between the connecting portion 422 and the mounting portion 421 and the cover member 30.

[0030] In some embodiments, the temperature measuring member 41 can comprise a temperature measuring connecting portion and a temperature measuring portion. The temperature measuring connecting portion is connected to the mounting member 42 and is in contact with the molten material when the temperature measuring member 41 measures the temperature of the molten material; the temperature measuring portion is fixedly connected to the inner side of the temperature measuring connecting portion and extends to the outside of the temperature measuring connecting portion to measure the temperature of the molten material. In such embodiments, the temperature measuring portion is protected by the temperature measuring connecting portion arranged outside the temperature measuring portion, which avoids the temperature measuring portion being melted or corroded by the molten material; at the same time, the temperature measuring portion extending to the outside of the temperature measuring connecting portion can avoid the temperature measuring portion being affected by the cooling water in the water-cooled pipe constituting the containing member 10, which is conducive to ensuring the accuracy of the temperature measurement result.

[0031] In some embodiments, the temperature measuring portion can be a thermocouple, and the length of the temperature measuring portion extending to the outside of the temperature measuring connecting portion can be 100 mm.

[0032] In some embodiments, the temperature measuring connecting portion comprises an inner shell and an outer shell, the outer shell is in contact with the molten material, the inner shell is arranged on the inner side of the outer shell, and the temperature measuring portion is fixedly connected to the inner side of the inner shell; a cooling flow path is formed between the outer shell and the inner shell, and a coolant from outside the temperature measuring device 40 can enter the cooling flow path to cool the temperature measuring portion. In such embodiments, the temperature measuring portion is cooled by the coolant from outside entering the cooling flow path, which can avoid the temperature measuring portion being melted or corroded by the molten material.

[0033] In some embodiments, the temperature measuring member 41 and the mounting member 42 can be in an integrated structure, and the temperature measuring member 41 and the mounting member 42 can be hoisted or lifted as a whole by the hoisting device. In such embodiments, the above arrangement facilitates hoisting or lifting of the temperature measuring device 40 by the hoisting device, and facilitates mounting of the temperature measuring device 40 to the cover member 30.

[0034] In some embodiments, the hoisting device can be a crane and a mechanical arm.

[0035] For the embodiments of the present application, it also needs to be explained that, in the case of no conflict, the embodiments and the features in the embodiments of the present application can be combined with each other to obtain new embodiments.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An apparatus suitable for the treatment of radioactive waste, characterised in that, The application relates to a radioactive waste treatment device, comprising: a containing part for containing radioactive waste, wherein the containing part is composed of a plurality of water-cooled pipes; an induction coil arranged to generate an induced current on the radioactive waste in the containing part to heat the radioactive waste into a molten body; a cover part arranged to close the containing part; a temperature measuring device for measuring the temperature of the molten body in the containing part; wherein the temperature measuring device is arranged to be inclined away from the inner wall of the containing part when measuring the temperature of the molten body; wherein the temperature measuring device comprises: a temperature measuring part for measuring the temperature of the molten body; a mounting part connected with the temperature measuring part for mounting the temperature measuring part to the cover part; wherein the temperature measuring part is arranged to be inclined away from the inner wall of the containing part when measuring the temperature of the molten body; wherein the temperature measuring part is arranged to be vertical when mounting the temperature measuring part to the cover part; wherein the temperature measuring part is arranged to be inclined away from the inner wall of the containing part after mounting the temperature measuring part to the cover part; wherein the temperature measuring part is arranged to be changed from being inclined away from the inner wall of the containing part to being vertical during the process of melting the radioactive waste into the molten body; wherein the mounting part is arranged to enable the temperature measuring part to be changed from being inclined away from the inner wall of the containing part to being vertical by the gravity of the temperature measuring part; and wherein the mounting part is arranged to be relatively moved with the cover part to enable the temperature measuring part to be changed from being inclined away from the inner wall of the containing part to being vertical. The mounting part comprises a mounting portion and a connecting portion, and the mounting portion and the connecting portion are integrally formed; the connecting portion forms a channel, the temperature measuring part is fixedly connected with the inner side of the channel and extends to the outside of the channel, the mounting portion is formed on the radial outside of the connecting portion, and the mounting portion can be contacted with the cover part to mount the temperature measuring part to the cover part; wherein the connecting portion and the mounting portion are arranged to be relatively moved with the cover part. The cover part is formed with a sliding groove, the connecting portion and the mounting portion can enter the sliding groove, and the connecting portion and the mounting portion can slide in the sliding groove to enable the connecting portion and the mounting portion to be relatively moved with the cover part. The temperature measuring part comprises: a temperature measuring connecting portion connected with the mounting part, the temperature measuring connecting portion is contacted with the molten body when the temperature measuring part measures the temperature of the molten body; and a temperature measuring portion fixedly connected with the inner side of the connecting portion and extending to the outside of the temperature measuring connecting portion to measure the temperature of the molten body. The temperature measuring connecting portion comprises an inner shell and an outer shell, the outer shell is contacted with the molten body, the inner shell is arranged on the inner side of the outer shell, and the temperature measuring portion is fixedly connected with the inner side of the inner shell; a cooling flow path is formed between the outer shell and the inner shell, and a coolant from the outside of the temperature measuring device can enter the cooling flow path to cool the temperature measuring portion. The temperature measuring part and the mounting part are in an integral structure, and the temperature measuring part and the mounting part can be hoisted or lifted by hoisting equipment. ​ ​ ​ ​ ​ ​ ​ 2. The apparatus of claim 1, wherein, ​ ​ ​ 3. The apparatus of claim 2, wherein, ​ 4. The apparatus of claim 1, wherein, ​ ​ ​ 5. The apparatus of claim 4, wherein, ​ ​ 6. The apparatus of claim 1, wherein, ​

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