Pool type reactor capable of automatically changing materials

Abstract

The invention discloses a pool type reactor capable of automatically changing materials, and relates to the technical field of nuclear reactors. The plurality of fuel assemblies are arranged and distributed in the reactor shell; the cock mechanism is arranged at the top of the reactor shell and is rotationally connected with the reactor shell, so that a closed cavity is formed in the reactor shell, a plurality of hole channels are formed in the cock mechanism, and a hole channel plug is mounted on each hole channel; the grabbing mechanism is arranged above the cock mechanism; and the moving mechanism is arranged above the grabbing mechanism, and the moving mechanism is fixedly connected with the grabbing mechanism. The pool type reactor overcomes the technical problems of inconvenience in fuel reloading, short service life of in-reactor reloading and high failure rate of a liquid metal cooling reactor in the prior art, and the pool type reactor which can realize out-of-reactor reloading and is convenient and automatic in reloading is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear reactors, and particularly relates to a pool-type reactor capable of automatically refueling. Background Art

[0002] At present, the nuclear power plants in large-scale commercial operation are mainly pressurized water reactors. The fuel assemblies 2 are immersed in water, and the water plays a good shielding and protection role. The spent fuel is unloaded and new fuel is loaded by the method of refueling with the reactor head opened. However, for the current research on liquid metal reactors using liquid metal as the coolant, due to the use of liquid metal as the coolant, compared with pressurized water reactors, without the shielding and protection of water, in order to avoid the contact between liquid metal and air affecting safety, and also to avoid the leakage of radioactive substances affecting the environment, the method of refueling with the reactor head opened cannot be used, and a closed refueling method needs to be adopted.

[0003] Currently, pool-type liquid metal cooled reactors usually use in-core refueling machines for refueling. A plug is installed on the reactor head cover, and a cantilever-type refueling machine is arranged on the plug. The refueling operation is realized through the mutual rotation of the plug and the cantilever. However, since all mechanical equipment of the in-core refueling machine is located inside the reactor, under the influence of liquid metal corrosion and the radiation environment during reactor operation, the reliability and stability of the mechanical equipment are usually poor, the equipment failure rate is high, and at the same time, after the equipment fails, due to the harsh in-core environment where it is located, personnel cannot get close to it, and usually cannot be repaired. Summary of the Invention

[0004] The purpose of the present invention is to solve the technical problems of inconvenient fuel refueling, low in-core refueling life, and high failure rate in the prior art for liquid metal cooled reactors. The present invention provides the following technical solutions:

[0005] A pool-type reactor capable of automatically refueling, comprising

[0006] a reactor housing;

[0007] several fuel assemblies, arranged and distributed inside the reactor housing;

[0008] a plug mechanism, arranged on the top of the reactor housing and rotatably connected to the reactor housing to form a sealed cavity for the reactor housing. A plurality of channels are provided on the plug mechanism, and a channel plug is installed on each channel;

[0009] a grasping mechanism, arranged above the plug mechanism;

[0010] a moving mechanism, arranged above the grasping mechanism, and the moving mechanism is fixedly connected to the grasping mechanism.

[0011] The plug mechanism includes a first plug and a first driving component. The first plug is installed at the top of the reactor housing and is rotatably connected to the reactor housing. The first driving component is used to drive the first plug to rotate. The orifice is provided on the first plug. The fuel assemblies with the same radius from the central axis of the reactor housing are grouped together, and each group of fuel assemblies is correspondingly distributed with at least one orifice.

[0012] The outer edge of the first plug extends to the outer periphery of the reactor housing and is provided with serrations. The first driving component includes a first driving motor and a first gear. The output end of the first driving motor is fixedly connected to the first gear, and the first gear meshes with the first plug.

[0013] The grasping mechanism includes a second driving component and a grasping component. The second driving component is used to drive the grasping component to rotate. The grasping component includes a refueling container, a grasping unit, a second plug, and a third driving component. A through hole allowing the fuel assembly to pass through is provided at the bottom of the refueling container, and the top is rotatably connected to the second plug. The grasping unit is arranged inside the refueling container, and one end of the grasping unit passes through the second plug and is connected to the third driving component. The third driving component is used to drive the grasping unit to move up and down, and the third driving component is installed on the second plug.

[0014] The grasping unit includes a first movable rod and a mechanical gripper. One end of the first movable rod is fixedly connected to the mechanical gripper, and the other end passes through the second plug and is connected to the third driving component.

[0015] The outer edge of the second plug is provided with serrations. The second driving component includes a second driving motor and a second gear. The output end of the second driving motor is fixedly connected to the second gear, and the second gear meshes with the second plug.

[0016] The moving mechanism includes a traveling crane, a traveling crane track adapted to the traveling crane, and a fourth driving component. The traveling crane is fixedly connected to the grasping mechanism through a second movable rod. The fourth driving component is installed on the traveling crane, and the fourth driving component is connected to the second movable rod and drives the second movable rod to move in the vertical direction. The traveling crane track includes left and right tracks arranged in the horizontal direction and front and rear tracks arranged perpendicular to the left and right tracks in the horizontal direction. The left and right tracks are slidably connected to the front and rear tracks, and the traveling crane is installed on the left and right tracks and can move left and right on the left and right tracks.

[0017] There are two groups of the front and rear tracks, and the two groups of the front and rear tracks are arranged in parallel. One end of the left and right tracks is slidably connected to one group of the front and rear tracks, and the other end is slidably connected to the other group of the front and rear tracks.

[0018] A pool-type reactor capable of automatic refueling further includes a spent fuel storage room, which is arranged on one side of the reactor housing and within the movement range of the moving mechanism.

[0019] A pool-type reactor capable of automatic refueling further includes a fresh fuel storage room, which is arranged on one side of the reactor housing and within the movement range of the moving mechanism.

[0020] The present invention has the following advantages:

[0021] (1) For the refueling system of the pool-type reactor capable of automatic refueling provided by the present invention, by arranging a grasping mechanism 6 and a moving mechanism 7 for refueling above the reactor housing 1 and combining with the cooperation of the plug mechanism 3 arranged on the reactor housing 1, the out-of-pile refueling of the reactor is realized.

[0022] (2) For out-of-pile refueling, all mechanical components such as components for refueling and drive motors are arranged outside the reactor, avoiding long-term contact of mechanical components with the corrosive environment and radiation environment, thereby improving the reliability and stability of the mechanical components for refueling and prolonging the service life.

[0023] (3) For automatic refueling, it avoids the staff from approaching the reactor closely. Even if a component for reactor refueling fails, it is convenient to perform out-of-pile maintenance and replacement. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is a top view of the plug mechanism.

[0026] In the figure: 1. Reactor housing, 2. Fuel assembly, 3. Plug mechanism, 31. First plug, 32. First drive assembly, 321. First drive motor, 322. First gear, 4. Channel plug, 5. Channel, 6. Grasping mechanism, 61. Second drive assembly, 611. Second drive motor, 612. Second gear, 62. Grasping assembly, 621. Grasping unit, 6211. First movable rod, 6212. Mechanical gripper, 622. Refueling container, 623. Second plug, 624. Third drive assembly, 7. Moving mechanism, 71. Overhead crane, 72. Fourth drive assembly, 73. Second movable rod, 74. Left and right tracks, 75. Front and rear tracks, 8. Spent fuel storage room, 9. Fresh fuel storage room. Detailed Embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention claimed, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0029] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0031] Refer to Figures 1 to 2 , a pool-type reactor capable of automatic refueling, comprising

[0032] a reactor housing 1;

[0033] a plurality of fuel assemblies 2, arranged and distributed inside the reactor housing 1; preferably, the fuel assemblies 2 are distributed in a regular hexagon.

[0034] a plug mechanism 3, arranged on the top of the reactor housing 1 and rotatably connected to the reactor housing 1 to form a sealed cavity for the reactor housing 1; a plurality of channels 5 are provided on the plug mechanism 3, and a channel plug 4 is installed on each of the channels 5. The fuel assembly 2 can pass through the channel 5 for refueling.

[0035] a grasping mechanism 6, arranged above the plug mechanism 3; the grasping mechanism 6 is used to grasp the fuel assembly 2 and move it outside the reactor housing 1 through the channel 5.

[0036] The moving mechanism 7 is arranged above the grasping mechanism 6, and the moving mechanism 7 is fixedly connected to the grasping mechanism 6. The moving mechanism 7 is used to position the grasping mechanism 6.

[0037] In the above solution, the moving mechanism 7 accurately positions the grasping mechanism 6 above the fuel assembly 2, and the rotatable plug mechanism 3 realizes the positioning between the channel 5 through which the fuel assembly 2 passes and the fuel assembly 2. Then, through the grasping mechanism 6, the fuel assembly 2 is grasped and positioned to place a new fuel, thereby realizing the replacement of the fuel assembly 2.

[0038] The plug mechanism 3 includes a first plug 31 and a first driving component 32. The first plug 31 is installed on the top of the reactor housing 1 and is rotatably connected to the reactor housing 1. The first driving component 32 is used to drive the first plug 31 to rotate. Several channels 5 are provided on the first plug 31. When the grasping mechanism 6 grasps the fuel assembly 2, the fuel assembly 2 passes through the channels 5. The fuel assemblies 2 with the same radius from the central axis of the reactor housing 1 are in a group, and each group of fuel assemblies 2 is correspondingly distributed with at least one channel 5. Preferably, each group of fuel assemblies 2 is correspondingly distributed with one channel 5. By sharing the same channel 5 as the outlet for the fuel assemblies 2 to leave the reactor housing 1 for the fuel assemblies 2 with the same radius from the central axis of the reactor housing 1, the number of channels 5 opened on the first plug 31 is greatly reduced. By rotating the first plug 31, all the fuel assemblies 2 with the same radius from the central axis of the reactor housing 1 can be taken out through the same channel 5. The diameter of the channel needs to be larger than the diameter of the fuel assembly to allow the fuel assembly to pass through.

[0039] The outer edge of the first plug 31 extends to the outer periphery of the reactor housing 1 and is arranged in a serrated shape. The first driving component 32 includes a first driving motor 321 and a first gear 322. The output end of the first driving motor 321 is fixedly connected to the first gear 322, and the first gear 322 meshes with the first plug 31. Through the meshing method, the first driving motor 321 drives the first plug 31 to rotate, which is simple and convenient, with a low failure rate and accurate positioning. Preferably, the first plug is arranged in a T shape, wherein the outer edge of the horizontal end of the first plug is arranged in a serrated shape, and the vertical end is rotatably connected to the reactor housing.

[0040] The grasping mechanism 6 includes a second driving assembly 61 and a grasping assembly 62. The second driving assembly 61 is used to drive the grasping assembly 62 to rotate, and the grasping assembly 62 is used to grasp the channel plug 4 and the fuel assembly 2. The grasping assembly 62 includes a refueling container 622, a grasping unit 621, a second cock 623, and a third driving assembly 624. A through hole allowing the fuel assembly 2 to pass through is provided at the bottom of the refueling container 622, and the top is rotatably connected to the second cock 623. The grasping unit 621 is arranged inside the refueling container 622, and one end of the grasping unit 621 passes through the second cock 623 and is connected to the third driving assembly 624. The third driving assembly 624 is used to drive the grasping unit 621 to move up and down, and the third driving assembly 624 is installed on the second cock 623. The grasping unit 621 is used to grasp the channel plug 4 or the fuel assembly 2. The diameter of the through hole needs to be larger than that between the channel plug and the fuel assembly to allow the channel plug and the fuel assembly to pass through.

[0041] The grasping unit 621 includes a first movable rod 6211 and a mechanical gripper 6212. One end of the first movable rod 6211 is fixedly connected to the mechanical gripper 6212, and the other end passes through the second cock 623 and is connected to the third driving assembly 624. The mechanical gripper 6212 is used to grasp and release the channel plug 4 and the fuel assembly 2.

[0042] The outer edge of the second cock 623 is serrated. The second driving assembly 61 includes a second driving motor 611 and a second gear 612. The output end of the second driving motor 611 is fixedly connected to the first gear 322, and the first gear 322 meshes with the second cock 623.

[0043] In the above solution, the mechanical gripper 6212 is used to grasp the channel plug 4 and the fuel assembly 2. The third driving assembly 624 drives the first movable rod 6211, thereby driving the mechanical gripper 6212 to move up and down. The second driving motor 611 drives the second cock 623 to rotate. The third driving assembly 624 is fixedly installed on the second cock 623, and the third driving assembly 624 is connected to the mechanical gripper 6212, realizing the rotation of the mechanical gripper 6212 with the second cock 623 and achieving the transposition and temporary storage of the channel plug 4 or the fuel assembly 2.

[0044] The moving mechanism 7 includes a traveling crane 71, a traveling crane track adapted to the traveling crane 71, and a fourth driving assembly 72. The traveling crane 71 is fixedly connected to the grasping mechanism 6 through a second movable rod 73. The fourth driving assembly 72 is installed on the traveling crane 71. The fourth driving assembly 72 is connected to the second movable rod 73 and drives the second movable rod 73 to move in the vertical direction. The traveling crane track includes a left-right track 74 arranged in the horizontal direction and a front-back track 75 perpendicular to the left-right track 74 in the horizontal direction. The left-right track 74 is slidably connected to the front-back track 75. The traveling crane 71 is installed on the left-right track 74. The traveling crane 71 can move on the left-right track 74 to achieve the positioning adjustment of the charging container 622 in the left-right direction, and the left-right track 74 can be moved on the front-back track 75 to achieve the adjustment of the charging container 622 in the front-back direction. The combination of the two realizes the positioning adjustment within the specified movement area.

[0045] There are two groups of the front-back tracks 75. The two groups of the front-back tracks 75 are arranged in parallel. One end of the left-right track 74 is slidably connected to one group of the front-back tracks 75, and the other end is slidably connected to the other group of the front-back tracks 75.

[0046] It further includes a spent fuel storage room 8. The spent fuel storage room 8 is arranged on one side of the reactor housing 1 and within the movement range of the moving mechanism 7. The spent fuel storage room 8 is used to store the spent fuel assemblies 2 in the reactor housing 1 that have completed the reaction.

[0047] It further includes a fresh fuel storage room 9. The fresh fuel storage room 9 is arranged on one side of the reactor housing 1 and within the movement range of the moving mechanism 7. The fresh fuel storage room 9 is used to store the new fuel assemblies 2 to be replaced.

[0048] The working principle of the present invention is:

[0049] Enter the refueling operation room, start the first drive motor 321. The rotation of the first drive motor 321 drives the rotation of the first plug 31. When one of the channels 5 on the first plug 31 rotates above the fuel assembly 2 to be grabbed, the first drive motor 321 and the first plug 31 stop rotating; the traveling crane 71 drives the grabbing mechanism 6 to move above the fuel assembly 2 to be grabbed, and the fourth drive assembly 72 is started to drive the second movable rod 73 to descend. Since the second movable rod 73 is fixedly connected to the grabbing mechanism 6, the descent of the second movable rod 73 drives the grabbing mechanism 6 to descend. When the grabbing mechanism 6 descends to contact or approach the first plug 31, the fourth drive assembly 72 stops; the third drive assembly 624 is started, and the third drive assembly 624 drives the first movable rod 6211 to descend until the mechanical gripper 6212 connected to the first movable rod 6211 passes through the through hole to grab the channel plug 4, and then the third drive assembly 624 rotates in the reverse direction, and the first movable rod 6211, the mechanical gripper 6212, and the channel plug 4 grabbed by the mechanical gripper 6212 rise to the designated position in the refueling container 622, and the third drive assembly 624 stops rotating; the second drive motor 611 is started. Since the second gear 612 fixedly connected to the output end of the second drive motor 611 meshes with the second plug 623, the rotation of the second drive motor 611 drives the rotation of the second plug 623. Since the grabbing unit 621 is fixedly connected to the second plug 623, the rotation of the second plug 623 drives the grabbing unit 621 to rotate, that is, the mechanical gripper 6212 rotates around the central axis of the refueling container 622 and rotates to a position away from the through hole, and the second drive motor 611 stops rotating; the third drive assembly 624 is started to drive the first movable rod 6211, the mechanical gripper 6212, and the channel plug 4 grabbed by the mechanical gripper 6212 to descend until the channel plug 4 contacts the bottom of the refueling container 622, the third drive motor stops, the mechanical gripper 6212 releases the channel plug 4, the third drive assembly 624 is started, and the first movable rod 6211 and the mechanical gripper 6212 rise, and the third drive assembly 624 stops. The second drive motor 611 is started and runs in the reverse direction to drive the second plug 623 to rotate. When the second plug 623 rotates and drives the grabbing unit 621 to return to above the through hole, the second drive motor 611 stops rotating; the third drive assembly 624 is started to drive the first movable rod 6211 and the mechanical gripper 6212 to move downward until the mechanical gripper 6212 passes through the through hole and the channel 5 and contacts the fuel assembly 2, the third drive assembly 624 stops, the mechanical gripper 6212 grabs the fuel assembly 2, the third drive assembly 624 starts to run in the reverse direction to drive the first movable rod 6211, the mechanical gripper 6212, and the fuel assembly 2 grabbed by the mechanical gripper 6212 to move upward into the refueling container 622, and the third drive assembly 624 stops.The second drive motor 611 starts, driving the second plug 623 and the robotic gripper 6212 to rotate. After the robotic gripper 6212 and the fuel assembly 2 leave the through-hole, the second drive motor 611 stops, and the third drive assembly 624 starts, causing the fuel assembly 2 to descend. The robotic gripper 6212 releases the fuel assembly 2 into the refueling container 622 and places it on the bottom. Then, first start the second drive motor 611 to stop the robotic gripper 6212 above the channel plug 4. The second drive motor 611 stops, and then start the third drive assembly 624 to lower the robotic gripper 6212 to the channel plug 4. The third drive assembly 624 stops. After the robotic gripper 6212 grabs the channel plug 4, the third drive assembly 624 operates in reverse, and the robotic gripper 6212 rises. When the channel plug 4 detaches from the bottom of the refueling container 622, the third drive assembly 624 stops. The second drive motor 611 starts, driving the second plug 623 to rotate, causing the robotic gripper 6212 and the channel plug 4 to rotate above the through-hole. The second drive motor 611 stops. The third drive assembly 624 starts, driving the robotic gripper 6212 and the channel plug 4 grabbed by the robotic gripper 6212 to descend through the through-hole until the channel plug 4 is inserted into the channel 5. The robotic gripper 6212 releases the channel plug 4. The third drive assembly 624 operates in reverse, causing the robotic gripper 6212 to rise into the refueling container 622. The third drive assembly 624 stops. The second drive motor 611 operates, causing the robotic gripper 6212 to rotate and move above the fuel assembly 2. The robotic gripper 6212 grabs the fuel assembly 2, and the second drive motor 611 stops. Then, the traveling crane 71 moves on the left and right tracks 74, and the left and right tracks 74 cooperate to move back and forth, realizing the transfer of the refueling container 622 to above the spent fuel storage room 8. The top space of the spent fuel storage room 8 is opened. Through the same operation steps as above, through the cooperation of the second drive motor 611 and the third drive assembly 624, after the fuel assembly 2 grabbed by the robotic gripper 6212 passes through the through-hole, the robotic gripper 6212 descends and releases it in the spent fuel storage room 8. The traveling crane 71 then moves to the new fuel storage room 9. The robotic gripper 6212 descends, grabs the new fuel, and then rises into the refueling container 622. After placing the new fuel in the refueling container 622, the traveling crane 71 drives the refueling container 622 above the reactor housing 1. By repeating the steps of removing the channel plug 4 --- placing the new fuel assembly 2 --- placing and returning the channel plug 4, one refueling is completed.

[0050] After one refueling is completed, the first drive motor 321 rotates to drive the first plug 31 to rotate above the next fuel assembly 2. In this way, a set of fuel assemblies 2 with the same distance from the central axis of the reactor vessel 1 can achieve the refueling operation of all fuel assemblies 2 by sharing a common channel 5. After a set of fuel assemblies 2 with the same distance from the central axis of the reactor vessel 1 is replaced, the through hole of the refueling container 622 is aligned with the position of any one of the fuel assemblies 2 in the next set of fuel assemblies 2 by operating the overhead crane 71, and the above process is repeated for refueling until all the fuels are replaced.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover the equivalent replacement or change according to the technical solution and inventive concept of the present invention within the protection scope of the present invention.

Claims

1. A pool-type reactor capable of automatic material replacement, characterized in that: include Reactor casing; A plurality of fuel assemblies arranged and distributed inside the reactor shell; A plug mechanism is arranged on the top of the reactor shell and is rotatably connected to the reactor shell, so that the reactor shell forms a closed cavity. The plug mechanism is provided with a plurality of channels, and a channel plug is installed on each of the channels. A gripping mechanism is arranged above the plug mechanism; The moving mechanism is arranged above the grabbing mechanism, and the moving mechanism is fixedly connected to the grabbing mechanism.

2. A pool-type reactor capable of automatic material replacement as claimed in claim 1, characterized in that: The plug mechanism includes a first plug and a first drive assembly, wherein the first plug is installed on the top of the reactor shell and is rotatably connected to the reactor shell, and the first drive assembly is used to drive the first plug to rotate; the channel is arranged on the first plug; fuel assemblies with the same radius from the central axis of the reactor shell are grouped together, and each group of fuel assemblies is distributed corresponding to at least one channel.

3. A pool-type reactor capable of automatic material replacement as claimed in claim 2, characterized in that: The outer edge of the first cock extends to the outer circumference of the reactor shell and is arranged in a serrated shape. The first drive assembly includes a first drive motor and a first gear. The output end of the first drive motor is fixedly connected to the first gear, and the first gear is meshed with the first cock.

4. A pool-type reactor capable of automatic material replacement as claimed in claim 1, characterized in that: The grabbing mechanism includes a second driving assembly and a grabbing assembly, the second driving assembly is used to drive the grabbing assembly to rotate; the grabbing assembly includes a refueling container, a grabbing unit, a second plug and a third driving assembly; the bottom of the refueling container is provided with a through hole allowing the fuel assembly to pass through, and the top is rotatably connected to the second plug, the grabbing unit is arranged inside the refueling container, and one end of the grabbing unit passes through the second plug and is connected to the third driving assembly, the third driving assembly is used to drive the grabbing unit to move up and down, and the third driving assembly is installed on the second plug.

5. A pool-type reactor capable of automatic material replacement as claimed in claim 4, characterized in that: The grabbing unit comprises a first movable rod and a mechanical gripper, one end of the first movable rod is fixedly connected to the mechanical gripper, and the other end of the first movable rod is connected to the third driving assembly through a second cock.

6. A pool-type reactor capable of automatic material replacement as claimed in claim 4, characterized in that: The outer edge of the second cock is serrated, the second drive assembly includes a second drive motor and a second gear, the output end of the second drive motor is fixedly connected to the second gear, and the second gear is meshed with the second cock.

7. A pool-type reactor capable of automatic material replacement as claimed in claim 1, characterized in that: The moving mechanism includes a trolley, a trolley track matched with the trolley and a fourth driving assembly, the trolley is fixedly connected to the grabbing mechanism through a second movable rod; the fourth driving assembly is installed on the trolley, the fourth driving assembly is connected to the second movable rod and drives the second movable rod to move in a vertical direction; the trolley track includes left and right tracks arranged in a horizontal direction and front and rear tracks arranged perpendicular to the left and right tracks in a horizontal direction, the left and right tracks are slidably connected to the front and rear tracks, the trolley is installed on the left and right tracks and the trolley can move left and right on the left and right tracks.

8. A pool-type reactor capable of automatic material replacement as claimed in claim 7, characterized in that: There are two groups of front and rear rails, which are arranged parallel to each other. One end of the left and right rails is connected to one group of front and rear rails in a sliding fit, and the other end is connected to the other group of front and rear rails in a sliding fit.

9. A pool-type reactor capable of automatic material replacement as claimed in claim 1, characterized in that: It also includes a spent fuel storage room, which is arranged on one side of the reactor shell and is located within the movement range of the moving mechanism.

10. The pool-type reactor capable of automatic material replacement according to claim 1, characterized in that: It also includes a new fuel storage room, which is arranged on one side of the reactor shell and is located within the movement range of the moving mechanism.

Images