Molten material discharge device and discharge method in a glass melting furnace at a nuclear power plant.
The discharge device for glass melting furnaces in nuclear power plants addresses the challenge of continuous high-temperature operation by using induction heating and temperature management, ensuring stable and continuous discharge of molten glass.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2026-03-19
AI Technical Summary
Existing glass melting furnaces in nuclear power plants face challenges in effectively and continuously operating at high temperatures due to the need for stable and controlled discharge of molten glass.
A discharge device with a nozzle module heated by induction, temperature measurement modules, and a prevention module to manage heat diffusion and interference, along with adjustable discharge height and timing, ensures stable continuous operation.
Enables continuous operation of the glass melting furnace by maintaining the nozzle module at a set temperature and preventing heat interference, allowing for stable discharge and operation of the vitrification facility.
Smart Images
Figure 2026509535000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a melt discharge device and a discharge method in a glass melting furnace of a nuclear power plant.
Background Art
[0002] In the handling of the melt associated with vitrification in a nuclear power plant, after melting glass at a high temperature, the continuous operation of the glass melting furnace is required by periodically or continuously discharging the melted glass. In relation to this, various glass discharge means (for example, sliding gate type discharge, tilting type discharge, side discharge, etc.) are applied to continuously or periodically discharge the high-temperature glass melt. In relation to such discharge means, a measure for more effectively performing the continuous or periodic discharge of the melted glass is required.
Summary of the Invention
Problems to be Solved by the Invention
[0003] The problem to be solved by the present invention is to enable the discharge device of the glass melting furnace to effectively continuously operate the glass melting furnace at a high temperature.
[0004] In particular, by providing an opening / closing device capable of adjusting the discharge height of the melt and allowing the user to set the discharge timing, stable continuous operation of the entire vitrification facility is enabled.
[0005] The problems of the present invention are not limited to those described above, and other problems not described can also be clearly understood by those skilled in the art from the following description.
Means for Solving the Problems
[0006] A molten material discharge device for a glass melting furnace of a nuclear power plant according to one aspect of the present invention for achieving the above objectives includes a target body containing molten material positioned at the top, and a discharge assembly for continuously discharging the molten material to the bottom, the discharge assembly including a main body module, a drive module for providing driving force, a nozzle module for discharging the molten material from the target body, a heating module for heating the nozzle module by induction heating, a first temperature measurement module for acquiring first temperature information due to heating of the nozzle module, and a second temperature measurement module for acquiring second temperature information, which is temperature information due to heating of the nozzle module, separately from the first temperature information, the heating module maintains the nozzle module at a set temperature based on the first temperature information and the second temperature information.
[0007] Furthermore, the nozzle module is located in a hollow region formed in the main body module, and the discharge assembly further includes a prevention module for preventing the induction heating from being affected by external factors or affecting external factors, the prevention module being located in at least a part of the periphery of the nozzle module and including an upper end heat diffusion prevention portion for preventing heat diffusion by at least one of the nozzle module and the heating module.
[0008] Furthermore, the prevention module is located in at least a part of the surrounding area of the nozzle module and further includes an interference prevention section to prevent interference with the heating of the nozzle module by the induction heating method of the heating module.
[0009] Furthermore, the target object is heated by an induction heating method target object heating means, the target object heating means performs heating based on a first frequency value, the heating module performs heating based on a second frequency value different from the first frequency value, and the interference prevention unit is provided by a non-magnetic shielding method to prevent operational interference between the target object heating means and the heating module based on the first and second frequency values.
[0010] Furthermore, the prevention module is positioned on the inner wall of the hollow region of the main module, sandwiching the nozzle module, and includes a lower end heat diffusion prevention portion for preventing heat diffusion by at least one of the nozzle module and the heating module.
[0011] Furthermore, the discharge assembly includes an opening / closing module for opening and closing the area below the nozzle module, the opening / closing module includes a first opening / closing section that causes the nozzle module to be opened and closed by a positional movement based on the driving force, and a second opening / closing section that causes the nozzle module to be opened and closed by a positional movement based on the driving force.
[0012] Furthermore, the first opening / closing unit is configured to open and close by performing a 1-1 movement that moves away from and approaches one side of the nozzle module based on the driving force, and the second opening / closing unit is configured to open and close by performing a 1-2 movement that moves away from and approaches the other side of the nozzle module based on the driving force.
[0013] Furthermore, when the nozzle module is in a state where it contains more than the preset standard amount of molten glass, the first-1 movement and the first-2 movement are performed at a reduced speed compared to when it is not in such a state.
[0014] Furthermore, the nozzle module has an outlet formed at the bottom for discharging the molten material, and the first opening / closing part and the second opening / closing part are shaped to correspond to the nozzle module and are in contact with the nozzle module so as to close the outlet.
[0015] Furthermore, the nozzle module is tapered at the bottom, and the first opening / closing section and the second opening / closing section have recessed sections corresponding to the nozzle module.
[0016] Furthermore, the first opening / closing unit is configured to open and close by performing a second-first movement that moves away from and approaches one side of the nozzle module based on the driving force, and the second opening / closing unit is configured to open and close by performing a second-second movement that moves away from and approaches the other side of the nozzle module based on the driving force.
[0017] Furthermore, the nozzle module includes a metal material that relaxes with heat, and when the nozzle module relaxes and extends downward by more than a preset reference amount, the 2-1 movement and the 2-2 movement are performed so that the first opening / closing part and the second opening / closing part reach the position corresponding to the extended state at a reduced speed compared to when the nozzle module does not fall into the extended state.
[0018] A method for discharging molten material in a glass melting furnace of a nuclear power plant according to another aspect of the present invention for achieving the above objective, comprising the step of continuously discharging molten material from a target body containing molten material, wherein the discharge assembly is positioned at the top, the discharge assembly comprising: a main body module; a drive module for providing driving force; a nozzle module for discharging the molten material from the target body; a heating module for heating the nozzle module by induction heating; a first temperature measuring module for acquiring first temperature information due to heating of the nozzle module; and a second temperature measuring module for acquiring second temperature information, which is temperature information due to heating of the nozzle module, separately from the first temperature information, wherein the heating module maintains the nozzle module at a set temperature based on the first and second temperature information. [Effects of the Invention]
[0019] According to the present invention as described above, one or more of the following effects can be obtained.
[0020] According to the present invention, the discharge device for a glass melting furnace can effectively operate the glass melting furnace continuously at high temperatures.
[0021] In particular, by providing an opening and closing device that can adjust the discharge height of the melt and allows the user to set the discharge timing, the entire vitrification facility can be stably and continuously operated.
Brief Description of the Drawings
[0022] [Figure 1] It is a block diagram showing the configuration of a melt discharge device in a glass melting furnace of a nuclear power plant according to an embodiment of the present invention. [Figure 2] It is a block diagram showing the configuration according to FIG. 1 in detail. [Figure 3] It is a diagram showing the configuration according to FIG. 1. [Figure 4] It is a diagram showing the configuration according to FIG. 1. [Figure 5] It is a flowchart showing a melt discharge method in a glass melting furnace of a nuclear power plant according to an embodiment of the present invention.
Best Mode for Carrying Out the Invention
[0023] The present invention relates to a melt discharge device in a glass melting furnace of a nuclear power plant, and includes an object in which a melt is accommodated at an upper part, and a discharge assembly for continuously discharging the melt to a lower part. The discharge assembly includes a main body module, a drive module that provides a driving force, a nozzle module for discharging the melt from the object, a heating module for heating the nozzle module by an induction heating method, a first temperature measurement module for acquiring first temperature information due to heating of the nozzle module, and a second temperature measurement module for separately acquiring second temperature information that is temperature information due to heating of the nozzle module from the first temperature information. The heating module maintains the nozzle module at a set temperature based on the first temperature information and the second temperature information.
Mode for Carrying Out the Invention
[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The advantages and features of the present invention, as well as methods for achieving them, will become clearer with reference to the embodiments described in detail below, along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and can be realized in a variety of different forms, and these embodiments are provided merely to complete the disclosure of the present invention and to fully inform those who are ordinary skill in the art to which the invention pertains, of the scope of the invention, and the present invention is defined solely by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.
[0025] Referring to Figure 1, a molten material discharge device in a glass melting furnace of a nuclear power plant according to one embodiment of the present invention includes a discharge assembly 100. The discharge assembly 100 includes a main module 110, a control module 120, and a drive module 130.
[0026] The main body module 110 includes a nozzle module 111, a heating module 112, a prevention module 113, a first temperature measurement module 114, a second temperature measurement module 115, and switching modules 116 and 117. The switching modules 116 and 117 include a first switching section 116 and a second switching section 117.
[0027] Referring to Figure 2, the prevention module 113 includes an upper end heat diffusion prevention section 1131, an interference prevention section 1132, and a lower end heat diffusion prevention section 1133. Referring to Figures 3 and 4, the discharge assembly 100 has a target body 1 containing molten material positioned at the top and continuously discharges the molten material downwards.
[0028] Here, the main module 110 of the discharge assembly 100 is provided according to a predetermined standard. The drive module 130 provides the driving force necessary for the operation of the discharge assembly 100.
[0029] The nozzle module 111 discharges the molten material from the target object 1. The heating module 112 heats the nozzle module 111 using induction heating. The first temperature measurement module 114 acquires first temperature information obtained by heating the nozzle module 111.
[0030] Furthermore, the second temperature measurement module 115 acquires second temperature information, which is temperature information due to heating of the nozzle module 111, separately from the first temperature information. The control module 120 ensures that the nozzle module 111 is maintained at a set temperature by the heating module 112.
[0031] The control module 120 causes the heating module 112 to maintain the nozzle module 111 at a set temperature based on the first temperature information and the second temperature information. The nozzle module 111 is located in a hollow region H formed in the main body module 110.
[0032] The prevention module 113 of the discharge assembly 100 plays a role in preventing the induction heating from being affected by external factors or from affecting external factors. The upper end heat diffusion prevention portion 1131 of the prevention module 113 is located in at least a part of the periphery of the nozzle module 111.
[0033] The upper heat diffusion prevention portion 1131 serves to prevent heat diffusion caused by at least one of the nozzle module 111 and the heating module 112. The interference prevention portion 1132 of the prevention module 113 is located in at least a part of the periphery of the nozzle module 111.
[0034] Furthermore, the interference prevention unit 1132 plays a role in preventing interference with the heating of the nozzle module 111 by the induction heating method of the heating module 112.
[0035] The target object 1 is heated by an induction heating method target object heating means 11. The target object heating means 11 performs heating based on a first frequency value. The heating module 112 also performs heating based on a second frequency value that is different from the first frequency value.
[0036] The interference prevention unit 1132 prevents operational interference between the target object heating means 11 and the heating module 112 based on the first and second frequency values. For this purpose, it is provided, for example, by a non-magnetic shielding method.
[0037] Furthermore, the prevention module 113 is positioned on the inner wall of the main body module 110 in the hollow region H, sandwiching the nozzle module 111. The lower end heat diffusion prevention portion 1133 serves to prevent heat diffusion by at least one of the nozzle module 111 and the heating module 112.
[0038] The opening and closing modules 116 and 117 of the discharge assembly 100 are responsible for opening and closing the area below the nozzle module 111. The first opening and closing section 116 of the opening and closing modules 116 and 117 is configured to open and close relative to the nozzle module 111 by a positional movement based on the driving force.
[0039] The second opening / closing section 117 of the opening / closing modules 116 and 117 is configured to open and close relative to the nozzle module 111 by positional movement based on the driving force. The first opening / closing section 116 is configured to open and close by performing a first-first movement that moves away from and closer to one side of the nozzle module 111 based on the driving force.
[0040] Furthermore, the second opening / closing section 117 performs the opening and closing by moving away from and approaching the other side of the nozzle module 111 based on the driving force.
[0041] The first opening / closing section 116 and the second opening / closing section 117 correspond to a state in which the nozzle module 111 contains more than the preset standard amount of molten glass.
[0042] In this case, the 1-1 movement and the 1-2 movement are performed at a reduced speed compared to when the containment state is not met. The nozzle module 111 has an outlet formed at the bottom for discharging the molten material.
[0043] The first opening / closing section 116 and the second opening / closing section 117 are shaped to correspond to the nozzle module 111 and are in contact with the nozzle module 111 so as to close the discharge port.
[0044] The nozzle module 111 is tapered at the bottom. The first opening / closing section 116 and the second opening / closing section 117 have recessed sections that correspond to the nozzle module 111.
[0045] The first opening / closing section 116 performs a second-first movement, moving away from and closer to one side of the lower part of the nozzle module 111, based on the driving force, thereby enabling the opening and closing to occur.
[0046] Here, the second opening / closing unit 117 performs a second-second movement, moving away from and closer to the other lower side of the nozzle module 111, based on the driving force, thereby enabling the opening and closing to occur.
[0047] The nozzle module 111 includes a metal material that relaxes due to heat. The first opening / closing section 116 and the second opening / closing section 117 correspond to an extended state in which the nozzle module 111 relaxes and extends downward by more than a preset reference amount.
[0048] In such cases, the 2-1 movement and the 2-2 movement are performed so that the first opening / closing section 116 and the second opening / closing section 117 reach the position corresponding to the extended state at a reduced speed compared to when the extended state does not apply.
[0049] Figure 5 is a flowchart showing a method (S100) for discharging molten material in a glass melting furnace of a nuclear power plant according to one embodiment of the present invention. Referring to Figure 5, the method (S100) for discharging molten material in a glass melting furnace of a nuclear power plant involves a discharge assembly 100 positioned at the top to continuously discharge the molten material from a target body 1 containing the molten material downwards.
[0050] The discharge assembly 100 includes a main module 110, a drive module 130 that provides driving force, and a nozzle module 111 for discharging the molten material from the target object 1.
[0051] The system also includes a heating module 112 for heating the nozzle module 111 by induction heating, and a first temperature measurement module 114 for acquiring first temperature information obtained by heating the nozzle module 111.
[0052] Furthermore, the system includes a second temperature measurement module 115 for acquiring second temperature information, which is temperature information obtained by heating the nozzle module 111, separately from the first temperature information. Here, the heating module 112 ensures that the nozzle module 111 is maintained at a set temperature based on the first temperature information and the second temperature information.
[0053] While embodiments of the present invention have been described above with reference to the attached drawings, any person with ordinary skill in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without altering its technical idea or essential features. Therefore, the above embodiments are merely illustrative in all respects and should not be interpreted as limiting.
Claims
1. A molten material discharge device in a glass melting furnace at a nuclear power plant, An object containing molten material is positioned at the top, and a discharge assembly is included for continuously discharging the molten material to the bottom. The aforementioned discharge assembly is The main module and A drive module that provides driving force, A nozzle module for discharging the molten material from the target object, A heating module for heating the nozzle module by induction heating, A first temperature measurement module for acquiring first temperature information obtained by heating the nozzle module, The module includes a second temperature measuring module for acquiring a second temperature information, which is temperature information obtained by heating the nozzle module, separately from the first temperature information. The aforementioned heating module is A molten material discharge device for a glass melting furnace at a nuclear power plant, which maintains the nozzle module at a set temperature based on the first temperature information and the second temperature information.
2. The nozzle module is located in a hollow region formed in the main module. The aforementioned discharge assembly is The induction heating system further includes a prevention module to prevent it from being affected by external factors or affecting external factors, The aforementioned prevention module is A molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 1, comprising an upper end heat diffusion prevention portion located in at least a portion of the periphery of the nozzle module, for preventing heat diffusion by at least one of the nozzle module and the heating module.
3. The aforementioned prevention module is Molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 2, further comprising an interference prevention unit located in at least a portion of the surrounding area of the nozzle module, for preventing interference with the heating of the nozzle module by the induction heating method of the heating module.
4. The object is heated by an induction heating method for object heating means. The aforementioned object heating means performs heating based on a first frequency value. The heating module performs heating based on a second frequency value that is different from the first frequency value. The aforementioned interference prevention unit is Molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 3, wherein the target object heating means and the heating module are provided by a non-magnetic shielding method so that no operational interference occurs between them based on the first frequency value and the second frequency value.
5. The aforementioned prevention module is In the hollow region of the main body module, the nozzle module is sandwiched between the inner walls and arranged as follows: Molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 2, comprising a lower end heat diffusion prevention section for preventing heat diffusion by at least one of the nozzle module and the heating module.
6. The aforementioned discharge assembly is Includes an opening / closing module for opening and closing the lower part of the nozzle module, The aforementioned switching module is A first opening / closing unit that causes the nozzle module to open and close due to positional movement based on the aforementioned driving force, A molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 1, further comprising a second opening / closing unit that causes the nozzle module to be opened and closed by a positional movement based on the aforementioned driving force.
7. The first opening / closing section is, The opening and closing are performed by executing a first-first movement that moves away from and approaches one side of the nozzle module based on the aforementioned driving force. The second opening / closing section is, The molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 6, wherein the opening and closing is performed by carrying out first and second movements that move away from and approach the other side of the nozzle module based on the driving force.
8. The first opening / closing section and the second opening / closing section are If the nozzle module contains more than the preset standard amount of molten glass, Molten material discharge device in a glass melting furnace of a nuclear power plant according to claim 7, wherein the 1-1 movement and the 1-2 movement are performed at a reduced speed compared to when the containment state does not apply.
9. The nozzle module is An outlet for discharging the molten material is formed at the bottom. The molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 6, wherein the first opening / closing section and the second opening / closing section are shaped to correspond to the nozzle module and come into contact with the nozzle module so as to close the discharge port.
10. The nozzle module is tapered at the bottom, and the first opening / closing section and the second opening / closing section have recessed sections corresponding to the nozzle module, as described in claim 9, for a molten material discharge device in a glass melting furnace of a nuclear power plant.
11. The first opening / closing section is, The opening and closing are performed by carrying out a second-first movement that moves away from and closer to the lower part of one side of the nozzle module based on the aforementioned driving force. The second opening / closing section is, The molten material discharge device for a glass melting furnace of a nuclear power plant according to claim 7, wherein the opening and closing is performed by carrying out a second-second movement that moves away from and approaches the other lower side of the nozzle module based on the aforementioned driving force.
12. The nozzle module includes a metal material that relaxes with heat. The first opening / closing section and the second opening / closing section are If the nozzle module is relaxed and extends downward by more than a preset reference amount, Molten material discharge device in a glass melting furnace of a nuclear power plant according to claim 11, wherein the 2-1 movement and the 2-2 movement are performed to reach a position corresponding to the extended state at a reduced speed compared to a case where the extended state does not apply.
13. A method for discharging molten material from a glass melting furnace at a nuclear power plant, The discharge assembly includes the step of continuously discharging the molten material from an object containing the molten material, which is positioned at the top, downwards. The aforementioned discharge assembly is The main module and A drive module that provides driving force, A nozzle module for discharging the molten material from the target object, A heating module for heating the nozzle module by induction heating, A first temperature measurement module for acquiring first temperature information obtained by heating the nozzle module, The module includes a second temperature measuring module for acquiring a second temperature information, which is temperature information obtained by heating the nozzle module, separately from the first temperature information. The aforementioned heating module is A method for discharging molten material in a glass melting furnace of a nuclear power plant, comprising maintaining the nozzle module at a set temperature based on the first temperature information and the second temperature information.