Sodium-cooled fast reactor assembly transfer silo

Abstract

The invention belongs to the technical field of sodium-cooled fast reactor large-scale assembly loading and reloading, and particularly relates to a sodium-cooled fast reactor assembly transferring silo. Comprising a silo body, the silo body is of a tubular structure, a lifting lug and a steel wire rope are arranged on the top of the silo body, an assembly gripper is arranged in the silo of the silo body, the steel wire rope is connected with the assembly gripper and a hoisting mechanism, a hoisting motor is arranged in the hoisting mechanism, an exhaust pipe is connected to the top of the silo body, and an exhaust port is formed in the tail end of the exhaust pipe. The bottom of the silo body is connected with a lower box body, an electric gate is arranged on the lower box body, the side end of the lower box body is connected with an air inlet through a pipeline, and the lower portion of the lower box body is connected with a lower box body lower flange. The device has the beneficial effects that the 130-180 DEG C assembly can be transferred from the heating container to the new assembly conversion barrel under the condition that the internal argon environment of 5-6 kpa is kept, the weight change is monitored in real time, and the device is stopped in time when the assembly is clamped.

Description

Technical Field

[0001] The invention belongs to the technical field of mass loading and replacement of components of a sodium-cooled fast reactor, and in particular relates to a sodium-cooled fast reactor component transfer silo. Background Art

[0002] During the loading and refueling of a sodium-cooled fast reactor, a large number of new components are loaded into the new component conversion barrel, and a large-batch component loading process is required. The new components are preheated to 130℃~180℃ in a temporary heating container and then loaded into the new component conversion barrel. Summary of the invention

[0003] The purpose of the present invention is to provide a sodium-cooled fast reactor component transfer silo to solve the problem of transferring heated components in an argon environment, and to achieve the transfer of heated components from a heating container to a new component conversion barrel while maintaining an argon atmosphere.

[0004] The technical solution of the present invention is as follows: a sodium-cooled fast reactor assembly transfer silo comprises a silo body, the silo body is a tubular structure with a lifting lug arranged on the top, a steel wire rope and an assembly gripper are arranged inside the silo of the silo body, the steel wire rope connects the assembly gripper and a hoisting mechanism, a hoisting motor is arranged in the hoisting mechanism, an exhaust pipe is connected to the top of the silo body, an exhaust port is arranged at the end of the exhaust pipe, a lower box body is connected to the bottom of the silo body, an electric gate is arranged on the lower box body, the side end of the lower box body is connected to an air inlet through a pipeline, and the lower part of the lower box body is connected to a lower flange of the lower box body.

[0005] The side end of the lifting ear is connected with a lifting ear motor.

[0006] A temperature sensor is arranged on the outer wall surface of the lower part of the silo body.

[0007] A weighing sensor is installed on the upper part of the silo body.

[0008] The exhaust pipe is fixed to the silo body through a plurality of fixed supports.

[0009] The two sides of the electric gate are respectively provided with a gate motor and a gate valve handwheel for controlling the switch of the electric gate.

[0010] A pressure gauge is arranged on the pipeline connecting the lower box body to the air inlet.

[0011] The side end of the lower box body is also connected with a gate valve lock tongue motor.

[0012] The beneficial effect of the present invention is that the device can transfer components at 130°C to 180°C from a heating container to a new component conversion barrel while maintaining an internal argon environment of 5kpa to 6kpa, and monitor weight changes in real time, and stop in time when the component becomes stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front schematic diagram of a sodium-cooled fast reactor assembly transfer silo provided by the present invention;

[0014] Figure 2 This is a side schematic diagram of a sodium-cooled fast reactor assembly transfer silo provided by the present invention.

[0015] In the figure: 1 lifting lug, 2 weighing sensor, 3 component gripper, 4 silo body, 5 temperature sensor, 6 pressure gauge, 7 air inlet, 8 lower flange of lower box, 9 gate valve lock tongue motor, 10 winch mechanism, 11 wire rope, 12 lifting lug motor, 13 fixed support, 14 winch motor, 15 gate motor, 16 gate valve handwheel, 17 exhaust port, 18 exhaust pipe. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1 and 2 As shown, a sodium-cooled fast reactor assembly transfer silo includes a lifting lug 1, a weighing sensor 2, an assembly gripper 3, a silo body 4, a temperature sensor 5, a pressure gauge 6, an air inlet 7, a lower flange of a lower box body 8, a gate valve lock tongue motor 9, a hoisting mechanism 10, a wire rope 11, a lifting lug motor 12, a fixed support 13, a hoisting motor 14, a gate motor 15, a gate valve handwheel 16, an exhaust port 17 and an exhaust pipe 18.

[0018] The silo body 4 is a tubular structure with a lifting lug 1 welded on the top for overall lifting. The side end of the lifting lug 2 is connected to a lifting lug motor 12. The wire rope 11 and the component gripper 3 are arranged inside the silo body 4. The wire rope 11 connects the component gripper 3 and the hoisting mechanism 10. The hoisting mechanism 10 is provided with a hoisting motor 14. The hoisting motor 14 is operated to control the lifting of the component gripper 3.

[0019] A temperature sensor 5 is arranged on the outer wall surface of the lower part of the silo body 4 , and a weighing sensor 2 is also installed on the upper part of the silo body 4 .

[0020] The top and bottom of the silo body 4 are respectively provided with an argon inlet and an outlet. After the argon is filled into the silo to the required pressure and purity, the valve is closed to maintain the internal argon environment.

[0021] An exhaust pipe 18 is connected to the top of the silo body 4, and an exhaust port 17 is arranged at the end of the exhaust pipe 18. The exhaust pipe 18 is fixed to the silo body 4 through multiple fixed supports 13; the bottom of the silo body 4 is connected to the lower box body, and an electric gate is arranged on the lower box body. The gate is opened when the component needs to pass through, and the gate is closed after the component is grabbed to achieve sealing; gate motors 15 and gate valve handwheels 16 are arranged on both sides of the electric gate to control the opening and closing of the electric gate. The side end of the lower box body is connected to the air inlet 7 through a pipeline, and a pressure gauge 6 is arranged on the pipeline connecting the lower box body to the air inlet. The lower part of the lower box body is connected to the lower flange 8 of the lower box body, and the side end of the lower box body is also connected to the gate valve lock tongue motor 9.

[0022] The present invention uses an argon pipeline interface to replace and fill the silo with argon, and the gate in the lower box body seals the silo under pressure. The winch mechanism drives the gripper to rise and fall, and the gripper grabs and releases the components. The weighing sensor and control system protect the components from overload and underload during the rise and fall, ensuring that the components will not fall accidentally. The lower flange of the lower box body is used to achieve quick connection with each channel transition bin. The device is transported to the designated location after connecting the lifting lug on the top of the silo to the crane hook in the factory.

[0023] This device uses a winch mechanism to drive the wire rope to drive the component gripper to grab and release the component. At the same time, the device itself has a sealing function to maintain the argon atmosphere and pressure in the silo, and can transfer 130℃~180℃ components from the heating container to the new component conversion barrel under 5kpa~6kpa argon environment, and is equipped with a weighing sensor for weight judgment. This device is small in size and light in weight, and can complete the hot grabbing and releasing functions of components with the smallest volume.

[0024] The working process of the present invention is as follows:

[0025] 1) Use argon heating and control system to replace the transfer silo with argon environment.

[0026] 2) Use the plant crane to lift the transfer silo to the top of the temporary heating container and connect it to the transition warehouse;

[0027] 3) Open the gate valve of the transition silo and the gate valve of the transfer silo, and lower the gripper to grab the components;

[0028] 4) After grabbing the components, rise to the upper position and close the transition silo gate valve and the transfer silo gate valve;

[0029] 5) Use the plant crane to lift the transfer silo to the top of the entrance channel of the new component conversion barrel and connect it with its transition bin;

[0030] 6) Open the gate valve of the transition silo and the gate valve of the transfer silo, and lower the components into the socket of the new component conversion barrel;

[0031] 7) After the component is released, the gripper is raised to the upper position and the gate valve is closed, thus completing the transfer of one component.

Claims

1. A sodium-cooled fast reactor assembly transfer silo, characterized in that: It includes a silo body. The silo body is a tubular structure with a lifting lug on the top. The wire rope and the component grab are arranged inside the silo of the silo body. The wire rope connects the component grab and the hoisting mechanism. The hoisting mechanism is provided with a hoisting motor. The top of the silo body is connected with an exhaust pipe. The end of the exhaust pipe is provided with an exhaust port. The bottom of the silo body is connected with a lower box body. An electric gate is provided on the lower box body. The side end of the lower box body is connected with an air inlet through a pipeline. The lower part of the lower box body is connected with a lower flange of the lower box body.

2. A sodium-cooled fast reactor assembly transfer silo as claimed in claim 1, characterized in that: The side end of the lifting ear is connected with a lifting ear motor.

3. A sodium-cooled fast reactor assembly transfer silo according to claim 1, characterized in that: A temperature sensor is arranged on the outer wall surface of the lower part of the silo body.

4. A sodium-cooled fast reactor assembly transfer silo as claimed in claim 1, characterized in that: A weighing sensor is installed on the upper part of the silo body.

5. A sodium-cooled fast reactor assembly transfer silo as claimed in claim 1, characterized in that: The exhaust pipe is fixed to the silo body through a plurality of fixed supports.

6. A sodium-cooled fast reactor assembly transfer silo as claimed in claim 1, characterized in that: The two sides of the electric gate are respectively provided with a gate motor and a gate valve handwheel for controlling the switch of the electric gate.

7. A sodium-cooled fast reactor assembly transfer silo as claimed in claim 1, characterized in that: A pressure gauge is arranged on the pipeline connecting the lower box body to the air inlet.

8. The sodium-cooled fast reactor assembly transfer silo according to claim 1, characterized in that: The side end of the lower box body is also connected with a gate valve lock tongue motor.

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