Sodium-cooled fast reactor large-batch assembly continuous in-reactor system and process

By designing heating containers, transfer siloes and argon heating and control systems in sodium-cooled fast reactors, the problem that the new component conversion barrel cannot be heated at one time is solved, and the components are quickly heated and continuously entered into the stack are achieved, which shortens the installation and replacement Material time improves process efficiency.

CN119132670APending Publication Date: 2024-12-13CNNC LONGYUAN TECH CO LTD +1

Patent Information

Application Number
CN202411209783.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

During the sodium-cooled fast stack loading and replacing process, the new component conversion barrel cannot heat all components at once, resulting in frequent cooling and heating, resulting in a long loading and replacing time, and the continuous operation of components into the stack cannot be achieved.

Method used

A sodium-cooled fast reactor large batch assembly continuous loading system including heating containers, transfer siloes, transition silos and argon heating and control systems is designed to use argon gas replacement without cooling of the new component conversion barrel. The heating system realizes continuous assembly of components and shortens the loading and replacement time.

Benefits of technology

It realizes rapid heating and continuous stacking of components, shortens the loading and replacing time, creates economic benefits, avoids frequent cooling and heating processes, and improves process efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119132670A_ABST
    Figure CN119132670A_ABST
Patent Text Reader

Abstract

The invention belongs to the technical field of sodium-cooled fast reactor loading and reloading, and particularly relates to a sodium-cooled fast reactor large-batch assembly continuous loading system and process. Comprising a heating container, a transfer silo, a transition bin, an assembly guide device and an argon heating and control system. The process has the beneficial effects that the problem that a new assembly conversion barrel needs to be frequently cooled, loaded into an assembly and reheated (in the period, the assembly cannot be loaded into a pile) in the large-batch assembly reloading process is solved by using the process. The construction period of a material loading and changing critical path is shortened, and economic benefits are created.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of sodium-cooled fast reactor loading and replacement, and in particular relates to a sodium-cooled fast reactor large-batch component continuous loading system and process. Background Art

[0002] In the demonstration fast reactor refueling process, new components need to be loaded into new component conversion barrels for heating before being loaded into the core. When refueling large quantities of components, the new component conversion barrel cannot heat all components at once. After all the heated components are loaded into the core, the new component conversion barrel needs to be cooled before the cold components can be loaded for argon replacement and heating. This process will take 7-8 days, and components cannot be loaded into the core during this period. Summary of the invention

[0003] The purpose of the present invention is to provide a sodium-cooled fast reactor large-scale component continuous loading system and process, which is suitable for the sodium-cooled fast reactor large-scale component replacement process, and solves the problem that large-scale components cannot be continuously loaded into the reactor during the replacement of the components. The component loading work can be completed without cooling the new component conversion barrel, saving the main line time of loading and reloading.

[0004] The technical solution of the present invention is as follows: a sodium-cooled fast reactor large-batch component continuous loading system, including a heating container, a transfer silo, a transition silo, a component guide device and an argon heating and control system.

[0005] The transition bin comprises a transition bin cylinder, a transition bin gate valve, a transition bin flange and a handle. The transition bin flange is installed above the transition bin cylinder, the handle is connected to the transition bin flange, and the transition bin gate valve is installed inside the transition bin cylinder.

[0006] The heating container includes a component heating container body, a component socket, a component channel, a socket rotation drive mechanism, a heating container air inlet, a heating container air outlet and a temperature sensor. A component socket is arranged in the heating container body, and a common component is fixed on the component socket. A flange is connected to the upper part of the heating container body, and a component channel is arranged on the flange. A socket rotation drive mechanism is installed on one side of the flange, a temperature sensor is arranged on the top of the flange, and a heating container air outlet is arranged on the top of the flange. A heating container air inlet is installed on the side end of the bottom of the heating container body, and the heating container air inlet extends to the top of the heating container body.

[0007] The transfer silo comprises a transfer silo lifting lug, a component gripper, a transfer silo body, a wire rope, a winch, a transfer silo gate valve, a transfer silo lower flange, a weighing sensor, a transfer silo air inlet, and a transfer silo air outlet, wherein the upper part of the transfer silo body is connected to a chamber, the top of the chamber is connected to the transfer silo lifting lug, the top of the side end of the chamber is connected to the transfer silo air inlet, a weighing sensor is also installed in the chamber, and a pipe is also connected to the lower end of the chamber, a wire rope is installed in the pipe, and the pipe is connected to the winch, one end of the wire rope is connected to the winch, and the other end is connected to the component gripper arranged in the transfer silo body, the lower part of the transfer silo body is connected to a chamber, one side of the chamber is connected to the transfer silo air outlet, and the lower part of the chamber is connected to the transfer silo lower flange.

[0008] The component guide device comprises a flange on a transition bin of the component guide device, a gate valve, a universal ball, motor I, motor II and a guide tube. The component guide device body is provided with a universal ball, motor I, motor II and a guide tube. Motor I drives the universal ball, and motor II drives the guide tube. A flange is installed on the upper part of the component guide device body, a gate valve is installed on the flange, and the gate valve is connected to the transition bin.

[0009] The argon heating and control system includes an argon regulating valve, an argon inlet, multiple valves, an intake valve, an exhaust valve, a sensor, a heater, a fan and a control cabinet, wherein there are two heaters and four fans, each heater is connected to a fan through a pipeline, two heaters are connected in parallel to the exhaust valves in series through pipelines, the two parallel heaters are also connected to the control cabinet through pipelines, one of the fans connected to the heater is also connected to the two fans in series through pipelines, an eighth valve is provided on the pipeline, the fans in series are connected to the intake valves in series through a pipeline provided with a fifth valve, intake valve I is connected to the control cabinet through a pipeline provided with a fourth valve, a second valve and a sixth valve, a pipeline provided with an argon inlet, an argon regulating valve and a seventh valve is connected to the fans in series, and the first valve and the third valve are respectively connected to the fans in series through pipelines.

[0010] The exhaust valves connected in series include exhaust valve I, exhaust valve II, exhaust valve III and exhaust valve IV which are connected in sequence.

[0011] The series-connected intake valves include an intake valve IV, an intake valve III, an intake valve II and an intake valve I which are connected in sequence.

[0012] A sensor is arranged on the pipeline between the heater and the exhaust valve.

[0013] A process for continuously loading a large number of components into a sodium-cooled fast reactor comprises the following steps:

[0014] Step 1: Install the transition chamber onto the component channel of the component heating container;

[0015] Step 2: Use the control cabinet to operate the transition chamber gate valve to open;

[0016] Step 3: Use a plant crane to load the new component at room temperature into the component socket of the component heating container through the component channel;

[0017] Step 4: After all the components at room temperature are installed into the component sockets, close the transition chamber gate valve;

[0018] Step 5: Connect the gas inlet of the heating container to the gas outlet of the argon gas control system;

[0019] Step 6: Connect the gas outlet of the heating container to the gas inlet of the argon gas control system;

[0020] Step 7: Start the argon control system to replace the argon gas, and replace the control in the heating container with argon gas until the argon concentration is greater than 90%, and adjust the pressure value of the control cabinet to keep the pressure in the heating container at 5kpa-6kpa;

[0021] Step 8: Turn on the heating mode of the argon control system, and initially use argon to heat the components in the heating container;

[0022] Step 9: When the temperature displayed in the heating container can be maintained between 180℃ and 200℃ for at least 5 minutes, the component transfer work can be carried out;

[0023] Step 10: Use a crane to connect the lifting lugs of the transfer silo and lift the transfer silo to the vicinity of the argon control system;

[0024] Step 11: Connect the gas outlet of the argon control system to the gas inlet of the transfer silo;

[0025] Step 12: Connect the air inlet of the argon control system and the air outlet of the transfer silo;

[0026] Step 13: Turn on the argon replacement mode of the argon control system to replace the argon in the transfer silo with argon with a concentration of more than 90%;

[0027] Step 14: Lift the transfer silo to the top of the heating container and connect the lower flange of the transfer silo with the flange of the transition silo;

[0028] Step 15: Open the transition silo gate valve and the transfer silo gate valve;

[0029] Step 16: Use the control cabinet to operate the winch to drive the component gripper to descend into the heating container to grab the component. During the grabbing process, you can observe the reading of the weighing sensor to determine whether the grabbing is successful. After the grabbing is successful, operate the gripper to grab the component and raise it to the upper working position;

[0030] Step 17: Close the transition silo gate valve and the transfer silo gate valve;

[0031] Step 18: Disconnect the lower flange of the transfer silo and the flange of the transition silo;

[0032] Step 19: Lift the transfer silo to the top of the assembly guide device, and connect the lower flange of the transfer silo with the upper flange of the transition silo of the assembly guide device;

[0033] Step 20: Open the gate valve and the transfer silo gate valve;

[0034] Step 21: Use the control cabinet to operate the winch to drive the wire rope to move the component gripper and the component downward;

[0035] Step 22: When the bottom of the component enters the component guide device, the motor I is controlled to rotate to adjust the position of the universal ball so that it clamps the component;

[0036] Step 23: Controlling the rotation of motor II can rotate the guide tube and rotate the assembly to a specified angle;

[0037] Step 24: After adjusting to a suitable angle, operate the winch to lower the assembly to the lower position;

[0038] Step 25: After the component is released successfully, operate the winch to raise the component gripper to the upper working position;

[0039] Step 26: Close the gate valve and transfer silo gate valve;

[0040] Step 27: Disconnect the lower flange of the transfer silo and the upper flange of the transition silo of the component guide device;

[0041] Step 28: Repeat steps 14 to 27 until all components in the component heating container are transferred to designated positions through the component guide device;

[0042] Step 29: Switch the argon gas control system to the cooling mode, and use cold air circulation to purge the inside of the heating container until the temperature inside the heating container drops to room temperature;

[0043] Step 30: Repeat steps 2 to 29 to complete the continuous heating and transfer of components.

[0044] The beneficial effect of the present invention is that the use of this process solves the problem that during the process of mass component replacement, the new component conversion barrel needs to be frequently cooled, loaded with components, and heated again (during this period, the stacking work cannot be carried out). It shortens the construction period of the key path of loading and replacement, and creates economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the transition warehouse;

[0046] Figure 2 It is a schematic diagram of the overall structure of the heating container;

[0047] Figure 3 A schematic diagram of a heating container assembly channel;

[0048] Figure 4 This is a schematic diagram of the overall structure of the transfer silo;

[0049] Figure 5 This is a schematic diagram of the cross section of the transfer silo;

[0050] Figure 6 is a schematic diagram of a component guide device;

[0051] Figure 7 This is a schematic diagram of the argon heating and control system;

[0052] Figure 8 This is the connection diagram of the argon heating and control system.

[0053] In the figure: 1 transition silo cylinder, 2 transition silo gate valve, 3 transition silo flange, 4 handle, 5 component heating container body, 6 component socket, 7 component, 8 component channel, 9 socket rotation drive mechanism, 10 heating container air inlet, 11 heating container air outlet, 12 temperature sensor, 13 transfer silo lifting lug, 14 component gripper, 15 transfer silo body, 16 wire rope, 17 winch, 18 transfer silo gate valve, 19 transfer silo lower flange, 20 weighing sensor, 21 transfer silo air inlet, 22 transfer silo air outlet, 23 component guide device Flange on ferry bin, 24 gate valve, 25 universal ball, 26 motor Ⅰ, 27 motor Ⅱ, 28 guide tube, 29 argon regulating valve, 30 argon inlet, 31 first valve, 32 second valve, 33 third valve, 34 intake valve Ⅰ, 35 intake valve Ⅱ, 36 intake valve Ⅲ, 37 intake valve Ⅳ, 38 sensor, 39 exhaust valve Ⅰ, 40 exhaust valve Ⅱ, 41 exhaust valve Ⅲ, 42 exhaust valve Ⅳ, 43 fourth valve, 44 heater, 45 fan, 46 control cabinet, 47 fifth valve, 48 sixth valve, 49 seventh valve, 50 eighth valve. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] A large-scale continuous loading process for sodium-cooled fast reactor components is mainly used to quickly heat the components before the new component conversion barrel is used, and the components are loaded into the new component conversion barrel without cooling the new component conversion barrel, so as to realize continuous loading of the components.

[0056] A sodium-cooled fast reactor large-batch component continuous loading system comprises a heating container, a transfer silo, a transition silo, a component guide device and an argon gas heating and control system.

[0057] like Figure 1As shown, the transition bin includes a transition bin cylinder 1, a transition bin gate valve 2, a transition bin flange 3 and a handle 4. The transition bin flange 3 is installed above the transition bin cylinder 1, the handle 4 is connected to the transition bin flange 3, and the transition bin gate valve 2 is installed inside the transition bin cylinder 1.

[0058] like Figure 2 and 3 As shown, the heating container includes a component heating container body 5, a component socket 6, a component channel 8, a socket rotation drive mechanism 9, a heating container air inlet 10, a heating container air outlet 11 and a temperature sensor 12. The component socket 6 is arranged in the heating container body 5, and a common component 7 is fixed on the component socket 6. A flange is connected to the upper part of the heating container body 5, and a component channel 8 is arranged on the flange. The socket rotation drive mechanism 9 is installed on one side of the flange, a temperature sensor 12 is arranged on the top of the flange, and a heating container air outlet 11 is arranged on the top of the flange. The heating container air inlet 10 is installed on the side end of the bottom of the heating container body 5, and the heating container air inlet 10 extends to the top of the heating container body 5.

[0059] like Figure 4 , 5 As shown, the transfer silo includes a transfer silo lifting ear 13, a component gripper 14, a transfer silo body 15, a wire rope 16, a winch 17, a transfer silo gate valve 18, a transfer silo lower flange 19, a weighing sensor 20, a transfer silo air inlet 21, and a transfer silo air outlet 22, wherein the upper part of the transfer silo body 15 is connected to a chamber, the top of the chamber is connected to the transfer silo lifting ear 13, the top of the side end of the chamber is connected to the transfer silo air inlet 21, a weighing sensor 20 is also installed in the chamber, a pipe is also connected to the lower end of the chamber, a wire rope 16 is installed in the pipe, the pipe is connected to the winch 17, one end of the wire rope 16 is connected to the winch 17, and the other end is connected to the component gripper 14 arranged in the transfer silo body 15, the lower part of the transfer silo body 15 is connected to a chamber, one side of the chamber is connected to the transfer silo air outlet 22, and the lower part of the chamber is connected to the transfer silo lower flange 19.

[0060] like Figure 6 As shown, the component guide device includes a flange 23 on the transition bin of the component guide device, a gate valve 24, a universal ball 25, a motor I 26, a motor II 27 and a guide tube 28. The universal ball 25, the motor I 26, the motor II 27 and the guide tube 28 are arranged in the body of the component guide device. The motor I 26 drives the universal ball 25, and the motor II 27 drives the guide tube 28. A flange is installed on the upper part of the body of the component guide device, and a gate valve 24 is installed on the flange. The gate valve 24 is connected to the transition bin.

[0061] like Figure 7 and 8As shown, the argon heating and control system can realize the heating of argon and related control functions, including an argon regulating valve 29, an argon inlet 30, a plurality of valves, four inlet valves, four exhaust valves, a sensor 38, a heater 44, a fan 45 and a control cabinet 46, wherein there are two heaters 44, four fans 45, each heater 16 is connected to a fan 45 through a pipeline, and two heaters 44 are connected in parallel through pipelines to four exhaust valves in series, namely, exhaust valve I 39, exhaust valve II 40, exhaust valve III 41 and exhaust valve IV 42, and a sensor 38 is arranged on the pipeline between the heater 44 and the exhaust valve, and the two parallel heaters 44 are also connected through pipelines. A control cabinet 46 is connected, wherein one of the fans connected to the heater is also connected to two fans connected in series through a pipeline, an eighth valve 50 is provided on the pipeline, and the fans connected in series are connected to four intake valves connected in series, namely (intake valve IV 37, intake valve III 36, intake valve II 35 and intake valve I 34) through a pipeline provided with a fifth valve 47, intake valve I 34 is connected to the control cabinet 46 through a pipeline provided with a fourth valve 43, a second valve 32 and a sixth valve 48, a pipeline provided with an argon inlet 30, an argon regulating valve 29 and a seventh valve 47 is connected to the fans connected in series, and the first valve 31 and the third valve 33 are respectively connected to the fans connected in series through pipelines.

[0062] This process equipment includes: using a crane to load new components into a heating container, heating the components in the heating container to a specified temperature through a heating system, controlling the heating container socket to a specified socket number, controlling the lifting and lowering of the transfer silo grabber and the opening and closing of the transition silo gate valve, and cooperating with the factory crane to transfer the components to the new component conversion barrel.

[0063] The component heating container heats the new component in the heating container, the transfer silo grabs the component from the component heating container, and releases the heated component into the new component conversion barrel; the transition bin serves as a passage for the new component to enter and exit the heating container to ensure the sealing of the component heating container; the argon heating and cooling system heats the argon and circulates it into the component heating container to heat the new component.

[0064] A process for continuously loading a large number of components into a sodium-cooled fast reactor comprises the following steps:

[0065] Step 31: Install the transition chamber onto the component channel 8 of the component heating container;

[0066] Step 32: Use the control cabinet to operate the transition bin gate valve 2 to open;

[0067] Step 33: Use a factory crane to load the new component at room temperature into the component heating container component socket 6 through the component channel 8.

[0068] Step 34: After all the components at room temperature are loaded into the component socket 6, the transition chamber gate valve 2 is closed;

[0069] Step 35: Connect the heating container air inlet 10 to the argon gas control system outlet;

[0070] Step 36: Connect the gas outlet 11 of the heating container to the gas inlet of the argon gas control system;

[0071] Step 37: Start the argon control system to replace the argon gas, replace the control in the heating container with argon gas until the argon concentration is greater than 90%, and adjust the pressure value of the control cabinet to keep the pressure in the heating container at 5kpa-6kpa;

[0072] Step 38: Turn on the heating mode of the argon gas control system, and initially use argon gas to heat the components in the heating container;

[0073] Step 39: When the temperature displayed in the heating container can be maintained between 180°C and 200°C for at least 5 minutes, the component transfer work is carried out;

[0074] Step 40: Use a crane to connect the transfer silo lifting lug 13 and lift the transfer silo to the vicinity of the argon control system;

[0075] Step 41: Connect the gas outlet of the argon gas control system to the gas inlet 21 of the transfer silo;

[0076] Step 42: Connect the air inlet of the argon control system and the air outlet 22 of the transfer silo;

[0077] Step 43: Turn on the argon replacement mode of the argon control system to replace the argon in the transfer silo with argon with a concentration of more than 90%;

[0078] Step 44: hoist the transfer silo to above the heating container, and connect the lower flange 19 of the transfer silo to the transition silo flange 3;

[0079] Step 45: Open the transition silo gate valve 2 and the transfer silo gate valve 18;

[0080] Step 46: Use the control cabinet to operate the winch 17 to drive the component gripper 14 to descend into the heating container to grab the component 7. During the grabbing process, the reading of the weighing sensor 20 can be observed to determine whether the grabbing is successful. After the grabbing is successful, operate the gripper to grab the component and raise it to the upper working position;

[0081] Step 47: Close the transition silo gate valve 2 and the transfer silo gate valve 18;

[0082] Step 48: Disconnect the lower flange 19 of the transfer silo and the flange 3 of the transition silo;

[0083] Step 49: hoist the transfer silo to the top of the assembly guide device, and connect the lower flange 19 of the transfer silo to the upper flange 23 of the transition silo of the assembly guide device;

[0084] Step 50: Open the gate valve 24 and the transfer silo gate valve 18;

[0085] Step 51: Use the control cabinet to operate the winch 17 to drive the wire rope to move the component gripper and the component downward;

[0086] Step 52: When the bottom of the component enters the component guide device, the motor I 26 is controlled to rotate to adjust the position of the universal ball 25 so that it clamps the component;

[0087] Step 53: Controlling the rotation of the motor II can rotate the guide tube 28 and rotate the assembly to a specified angle;

[0088] Step 54: After adjusting to a suitable angle, operate the winch 17 to lower the assembly to the lower position;

[0089] Step 55: After the component is released successfully, the winch 17 is operated to raise the component gripper 14 to the upper working position;

[0090] Step 56: closing the gate valve 24 and the transfer silo gate valve 18;

[0091] Step 57: Disconnect the lower flange 19 of the transfer silo and the upper flange 23 of the transition silo of the assembly guide device;

[0092] Step 58: Repeat steps 14 to 27 until all components in the component heating container are transferred to designated positions through the component guide device;

[0093] Step 59: Switch the argon gas control system to a cooling mode, and use cold air circulation to purge the interior of the heating container until the temperature inside the heating container drops to room temperature;

[0094] Step 60: Repeat steps 2 to 29 to complete the continuous heating and transfer of components.

Claims

1. A sodium-cooled fast reactor mass assembly continuous loading system, characterized by: Includes heating container, transfer silo, transition silo, component guide device and argon heating and control system.

2. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 1, characterized in that: The transition bin comprises a transition bin cylinder, a transition bin gate valve, a transition bin flange and a handle. The transition bin flange is installed above the transition bin cylinder, the handle is connected to the transition bin flange, and the transition bin gate valve is installed inside the transition bin cylinder.

3. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 1, characterized in that: The heating container includes a component heating container body, a component socket, a component channel, a socket rotation drive mechanism, a heating container air inlet, a heating container air outlet and a temperature sensor. A component socket is arranged in the heating container body, and a common component is fixed on the component socket. A flange is connected to the upper part of the heating container body, and a component channel is arranged on the flange. A socket rotation drive mechanism is installed on one side of the flange, a temperature sensor is arranged on the top of the flange, and a heating container air outlet is arranged on the top of the flange. A heating container air inlet is installed on the side end of the bottom of the heating container body, and the heating container air inlet extends to the top of the heating container body.

4. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 1, characterized in that: The transfer silo comprises a transfer silo lifting lug, a component gripper, a transfer silo body, a wire rope, a winch, a transfer silo gate valve, a transfer silo lower flange, a weighing sensor, a transfer silo air inlet, and a transfer silo air outlet, wherein the upper part of the transfer silo body is connected to a chamber, the top of the chamber is connected to the transfer silo lifting lug, the top of the side end of the chamber is connected to the transfer silo air inlet, a weighing sensor is also installed in the chamber, and a pipe is also connected to the lower end of the chamber, a wire rope is installed in the pipe, and the pipe is connected to the winch, one end of the wire rope is connected to the winch, and the other end is connected to the component gripper arranged in the transfer silo body, the lower part of the transfer silo body is connected to a chamber, one side of the chamber is connected to the transfer silo air outlet, and the lower part of the chamber is connected to the transfer silo lower flange.

5. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 1, characterized in that: The component guide device comprises a flange on a transition bin of the component guide device, a gate valve, a universal ball, motor I, motor II and a guide tube. The component guide device body is provided with a universal ball, motor I, motor II and a guide tube. Motor I drives the universal ball, and motor II drives the guide tube. A flange is installed on the upper part of the component guide device body, a gate valve is installed on the flange, and the gate valve is connected to the transition bin.

6. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 1, characterized in that: The argon heating and control system includes an argon regulating valve, an argon inlet, multiple valves, an intake valve, an exhaust valve, a sensor, a heater, a fan and a control cabinet, wherein there are two heaters and four fans, each heater is connected to a fan through a pipeline, two heaters are connected in parallel to the exhaust valves in series through pipelines, the two parallel heaters are also connected to the control cabinet through pipelines, one of the fans connected to the heater is also connected to the two fans in series through pipelines, an eighth valve is provided on the pipeline, the fans in series are connected to the intake valves in series through a pipeline provided with a fifth valve, intake valve I is connected to the control cabinet through a pipeline provided with a fourth valve, a second valve and a sixth valve, a pipeline provided with an argon inlet, an argon regulating valve and a seventh valve is connected to the fans in series, and the first valve and the third valve are respectively connected to the fans in series through pipelines.

7. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 6, characterized in that: The exhaust valves connected in series include exhaust valve I, exhaust valve II, exhaust valve III and exhaust valve IV which are connected in sequence.

8. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 6, characterized in that: The series-connected intake valves include an intake valve IV, an intake valve III, an intake valve II and an intake valve I which are connected in sequence.

9. A sodium-cooled fast reactor mass assembly continuous loading system as claimed in claim 6, characterized in that: A sensor is arranged on the pipeline between the heater and the exhaust valve.

10. A process for continuously loading a large number of components into a sodium-cooled fast reactor, characterized in that: The steps include: Step 1: Install the transition chamber onto the component channel of the component heating container; Step 2: Use the control cabinet to operate the transition chamber gate valve to open; Step 3: Use a plant crane to load the new component at room temperature into the component socket of the component heating container through the component channel; Step 4: After all the components at room temperature are installed into the component sockets, close the transition chamber gate valve; Step 5: Connect the gas inlet of the heating container to the gas outlet of the argon gas control system; Step 6: Connect the gas outlet of the heating container to the gas inlet of the argon gas control system; Step 7: Start the argon control system to replace the argon gas, and replace the control in the heating container with argon gas until the argon concentration is greater than 90%, and adjust the pressure value of the control cabinet to keep the pressure in the heating container at 5kpa-6kpa; Step 8: Turn on the heating mode of the argon control system, and initially use argon to heat the components in the heating container; Step 9: When the temperature displayed in the heating container can be maintained between 180℃ and 200℃ for at least 5 minutes, the component transfer work can be carried out; Step 10: Use a crane to connect the lifting lugs of the transfer silo and lift the transfer silo to the vicinity of the argon control system; Step 11: Connect the gas outlet of the argon control system to the gas inlet of the transfer silo; Step 12: Connect the air inlet of the argon control system and the air outlet of the transfer silo; Step 13: Turn on the argon replacement mode of the argon control system to replace the argon in the transfer silo with argon with a concentration of more than 90%; Step 14: Lift the transfer silo to the top of the heating container and connect the lower flange of the transfer silo with the flange of the transition silo; Step 15: Open the transition silo gate valve and the transfer silo gate valve; Step 16: Use the control cabinet to operate the winch to drive the component gripper to descend into the heating container to grab the component. During the grabbing process, you can observe the reading of the weighing sensor to determine whether the grabbing is successful. After the grabbing is successful, operate the gripper to grab the component and raise it to the upper working position; Step 17: Close the transition silo gate valve and the transfer silo gate valve; Step 18: Disconnect the lower flange of the transfer silo and the flange of the transition silo; Step 19: Lift the transfer silo to the top of the assembly guide device, and connect the lower flange of the transfer silo with the upper flange of the transition silo of the assembly guide device; Step 20: Open the gate valve and transfer silo gate valve; Step 21: Use the control cabinet to operate the winch to drive the wire rope to move the component gripper and the component downward; Step 22: When the bottom of the component enters the component guide device, the motor I is controlled to rotate to adjust the position of the universal ball so that it clamps the component; Step 23: Controlling the rotation of motor II can rotate the guide tube and rotate the assembly to a specified angle; Step 24: After adjusting to a suitable angle, operate the winch to lower the assembly to the lower position; Step 25: After the component is released successfully, operate the winch to raise the component gripper to the upper working position; Step 26: Close the gate valve and transfer silo gate valve; Step 27: Disconnect the lower flange of the transfer silo and the upper flange of the transition silo of the component guide device; Step 28: Repeat steps 14 to 27 until all components in the component heating container are transferred to designated positions through the component guide device; Step 29: Switch the argon gas control system to the cooling mode, and use cold air circulation to purge the inside of the heating container until the temperature inside the heating container drops to room temperature; Step 30: Repeat steps 2 to 29 to complete the continuous heating and transfer of components.

Citation Information

Patent Citations

  • Refueling system and refueling method of reactor

    CN113963823A

  • Argon heating and control system and method for sodium-cooled fast reactor assembly

    CN119132669A

  • Irradiation device pick-and-place tool based on gravity type automatic gripping apparatus

    CN215101508U

  • A fuel charging installation for a nuclear reactor

    GB1117265A

  • Improvements relating to fuel handling means in nuclear reactors

    GB1119262A

Cited By

  • System for continuous charging into a reactor and method for continuous charging into a reactor

    CN119786099A