A special tool cleaning and drying device for control rods of sodium-cooled fast reactor

Abstract

This invention relates to the field of nuclear power tools, and more particularly to a cleaning and drying device for control rod tools in sodium-cooled fast reactors. The device includes: a frame for securing other components; a high-pressure blower with a first filter connected to its inlet; a silicon tube connecting the high-pressure blower and a heater for ventilation; a second filter connected to the heater outlet, with the other end of the second filter connected to a turbine manual flooding butterfly valve and fasteners; and a controller for controlling the heater switch, high-pressure blower switch, temperature regulation, over-temperature alarm, and overload alarm. This invention facilitates rapid and pollution-free drying of control rod tools.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power tools, and in particular to a cleaning and drying device for control rods of sodium-cooled fast reactors. Background Technology

[0002] During the construction of the fast reactor project, a large number of control rod assemblies need to be transported and installed in the reactor. At this time, the special tools for the control rods that have been cleaned cannot be used temporarily because the dryness and humidity do not meet the requirements. The natural air drying mode does not meet the requirements because the drying time is too long and the components may be contaminated. This is a bottleneck problem for the sodium-cooled demonstration fast reactor. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cleaning and drying device for special tools of sodium-cooled fast reactor control rods, which is conducive to the rapid drying of special tools of control rods without pollution.

[0004] This utility model provides a special tool cleaning and drying device for control rods in sodium-cooled fast reactors, comprising: frame; A high-pressure blower is mounted on the upper part of the frame by fastening bolts; a first filter is connected to the air inlet of the high-pressure blower; A silicon tube is used to connect the high-pressure blower and the heater for ventilation; The heater is installed below the high-pressure blower and fixed to the frame with fastening bolts; the outlet of the heater is connected to a second filter. The other end of the second filter is connected to a worm gear manual flange butterfly valve and fasteners; The controller is used to control the heater switch, high-pressure fan switch, temperature regulation, over-temperature alarm, and overload alarm.

[0005] In one specific embodiment of this utility model, a caster wheel is installed at the bottom of the frame.

[0006] In one specific embodiment of this utility model, the universal wheel is equipped with a brake pad.

[0007] In one specific embodiment of this utility model, the second filter is a square filter used to filter gas at the air outlet.

[0008] In one specific embodiment of this utility model, the heater and the second filter are connected by a quick-connect coupling.

[0009] In one specific embodiment of this utility model, the controller is installed in front of the heater.

[0010] Compared with existing technologies, the cleaning and drying device for control rod tools in this invention provides pollution-free hot air to dry the control rod tools, allowing them to be reused, reducing waste in the use of control rod tools, and also reducing the generation of radioactive solid waste. This tool has already been used in a sodium-cooled demonstration fast reactor, and its effectiveness in achieving its purpose is evident. Attached Figure Description

[0011] Figure 1 A schematic diagram showing the structure of a cleaning and drying device for special tools used in sodium-cooled fast reactor control rods; Figure 2 Top view of a cleaning and drying device for control rods in a sodium-cooled fast reactor; Figure 3 This is a front view of a cleaning and drying device for the control rods of a sodium-cooled fast reactor. In the picture, 1-Frame, 2-Heater, 3-Second filter, 4-First filter, 5-High pressure blower, 6-Wheel caster, 7-Quick-connector, 8-Worm gear manual flange butterfly valve, 9-Fasteners, 10-Silicone tube. Detailed Implementation

[0012] To further understand this utility model, the embodiments of this utility model are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting this utility model.

[0013] An embodiment of this utility model discloses a special tool cleaning and drying device for control rods in a sodium-cooled fast reactor, such as... Figures 1-3 As shown, it includes: Frame 1; the bottom of the frame 1 is equipped with casters 6; The high-pressure blower 5 is mounted on the upper part of the frame 1 by fastening bolts, and the first filter 4 is connected to its air inlet. The first filter 4 is a coarse filter used to filter the gas at the air inlet; Heater 2 is installed below high-pressure blower 5 and fixed to frame 1 with fastening bolts. A silicon tube 10 is used to connect the high-pressure blower 5 and the heater 2 for ventilation. The high-pressure blower 5 is used to provide compressed air; The outlet of heater 2 is connected to a second filter 3, which is a square filter used to filter the gas at the outlet. Heater 2 and second filter 3 are connected via quick-connect coupling 7; The heater 2 is used to heat the gas; The other end of the second filter 3 is connected to the worm gear manual flange butterfly valve 8 and fastener 9; The worm gear manual flange butterfly valve 8 is used to open and close the air outlet. Fastener 9 is used for interface fastening; The controller is used to control the heater 2 switch, the high-pressure fan switch, temperature regulation, over-temperature alarm, and overload alarm.

[0014] The method of using the sodium-cooled fast reactor control rod cleaning and drying device described in this utility model is as follows: The sodium-cooled fast reactor control rod cleaning and drying device is connected to the transfer container on the drying station via an air duct. Open the vents and start the air supply for the sodium-cooled fast reactor control rod cleaning and drying device. The air passes through the first filter 4 to the heater 2. After heating, the air is piped to the second filter 3 and then to the transfer container at the drying station to continuously dry the control rods to meet the requirements.

[0015] The cleaning and drying device for control rods in sodium-cooled fast reactors is equipped with functions such as stop, emergency stop, alarm, and automatic stop to ensure safety during the drying process.

[0016] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0017] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cleaning and drying device for control rods in a sodium-cooled fast reactor, characterized in that, include: frame; A high-pressure blower is mounted on the upper part of the frame by fastening bolts; a first filter is connected to the air inlet of the high-pressure blower; A silicon tube is used to connect the high-pressure blower and the heater for ventilation; The heater is installed below the high-pressure blower and fixed to the frame with fastening bolts; the outlet of the heater is connected to a second filter. The other end of the second filter is connected to a worm gear manual flange butterfly valve and fasteners; The controller is used to control the heater switch, high-pressure fan switch, temperature regulation, over-temperature alarm, and overload alarm.

2. The cleaning and drying device for special tools of sodium-cooled fast reactor control rods according to claim 1, characterized in that, The frame is equipped with casters at the bottom.

3. The cleaning and drying device for special tools of sodium-cooled fast reactor control rods according to claim 2, characterized in that, The swivel wheel is equipped with brake pads.

4. The cleaning and drying device for special tools of sodium-cooled fast reactor control rods according to claim 1, characterized in that, The second filter is a square filter used to filter gas at the air outlet.

5. The cleaning and drying device for special tools of sodium-cooled fast reactor control rods according to claim 1, characterized in that, The heater is connected to the second filter via a quick-connect coupling.

6. The cleaning and drying device for special tools of sodium-cooled fast reactor control rods according to claim 1, characterized in that, The controller is installed in front of the heater.

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