Lead-cooled fast reactor fuel cladding circulation testing device

Abstract

The utility model discloses a lead-cooled fast reactor fuel cladding circulation testing device which comprises a base, two supporting legs fixedly connected above the base, a sliding mechanism fixedly connected between the two supporting legs, a clamping piece slidably connected to one side of the sliding mechanism, and a lifting mechanism slidably connected above the base. Through the automatic design of the base, the supporting legs, the sliding mechanism, the clamping piece, the lifting mechanism, the heating table and the water tank, the experiment efficiency and precision are remarkably improved. The base and the supporting legs provide stable supporting, and balance and durability of the whole device are guaranteed. And the sliding mechanism can automatically adjust the position of the clamping piece, so that the fuel cladding is positioned, and errors caused by manual operation are avoided. The clamping piece ensures that the cladding is stably clamped in the heating and cooling circulation, and damage or deviation is prevented. The lifting mechanism enables the height between the heating table and the water tank to be automatically adjusted, and it is guaranteed that the fuel cladding is rapidly switched in cold and hot circulation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of circulating test device, concretely relates to a kind of lead-cooled fast reactor fuel cladding circulating test device. BACKGROUND

[0002] Lead-cooled fast reactor is a new type of nuclear reactor, which uses lead or lead alloy as coolant in its design, with good safety and thermal stability. In this reactor, fuel cladding serves as an important protective material, which needs to withstand high temperature, corrosive coolant and severe environment of cold and hot cycles. In order to ensure the reliability of the cladding material, simulation test is needed to evaluate whether the coating will crack, peel off and other damage phenomena during high temperature heating and rapid cooling process.

[0003] Traditional fuel cladding test device often relies on manual operation, including heating, cooling and clamping, moving and other steps of the cladding. This way not only is cumbersome and inefficient, but also has the problem of large experimental error. At the same time, due to the rapid temperature change, manual operation in high temperature environment will increase the safety risk of experimental personnel. In addition, the accuracy and repeatability of manual operation are poor, which leads to unstable experimental results and makes it difficult to obtain consistent experimental data. Therefore, how to realize automatic test process becomes the key to improve the efficiency and safety of fuel cladding test.

[0004] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a lead-cooled fast reactor fuel cladding circulating test device to solve the problems raised in the background.

[0006] To solve the above technical problems, the basic idea of the technical solution of the utility model is:

[0007] A lead-cooled fast reactor fuel cladding circulating test device, comprising: a base, two legs fixedly connected above the base, a sliding mechanism fixedly connected between the two legs, a clamping piece slidingly connected to one side of the sliding mechanism, a lifting mechanism slidingly connected above the base, a heating table and a water tank fixedly connected in order from left to right above the lifting mechanism;

[0008] The sliding mechanism includes a mounting frame above the leg, two synchronous wheels rotatingly connected to the inner wall width direction of the mounting frame, a synchronous belt sleeved between the two synchronous wheels, a guide rail fixedly connected to the lower inner wall of the mounting frame, a sliding block slidingly connected to one side of the guide rail, a connecting plate slidingly connected to one side of the sliding block inside the mounting frame, a clamping plate fixedly connected to one side of the connecting plate facing the synchronous belt, and the synchronous belt is located in the space of the clamping plate, and the inner wall of the clamping plate is provided with gear teeth matched with the inner wall teeth of the synchronous belt on both sides.

[0009] Optionally, the upper portion of the base is fixedly connected with a positioning plate having a U-shaped space, a first ball screw is rotatably connected inside the space of the positioning plate, a fixed plate is fixedly connected to the moving end of the first ball screw, and the lifting mechanism is fixedly connected with the fixed plate.

[0010] Optionally, a drive motor is fixedly connected to one side of the positioning plate, the output end of the drive motor is fixedly connected between the positioning plate and the first ball screw, a guide sleeve is fixedly connected below the fixed plate, and a guide rod for the movement of the guide sleeve is fixedly connected inside the space of the positioning plate.

[0011] Optionally, the lifting mechanism comprises a combination plate fixedly connected with the fixed plate, and a placement plate located above the combination plate, both sides of the placement plate are connected with connecting seats, both sides of the combination plate are fixedly connected with angle seats, an electric push rod is fixedly connected above the angle seat, and the output end of the electric push rod is fixedly connected with the connecting seat.

[0012] Optionally, the clamping member comprises a plate body fixedly connected with the connecting plate, a servo motor is fixedly connected above the plate body, a second ball screw is connected to the output end of the servo motor through a shaft coupling, a sliding plate is fixedly connected to the sliding end of the second ball screw, and a translation clamping air cylinder for clamping the fuel cladding is fixedly connected to one side of the sliding plate.

[0013] Optionally, a connecting column is fixedly connected between the plate body and the connecting plate.

[0014] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0015] Through the automatic design of the base, the supporting legs, the sliding mechanism, the clamping member, the lifting mechanism, the heating table, and the water tank, the experimental efficiency and accuracy are significantly improved. The base and the supporting legs provide stable support, ensuring the balance and durability of the entire device. The sliding mechanism can automatically adjust the position of the clamping member, achieving the positioning of the fuel cladding and avoiding errors caused by manual operation. The clamping member ensures the stable clamping of the cladding during heating and cooling cycles, preventing damage or deviation. The lifting mechanism automates the height adjustment between the heating table and the water tank, ensuring quick switching of the fuel cladding during cold and hot cycles. The heating table and the water tank move up and down automatically through the lifting mechanism, ensuring consistent temperature changes and improving the reliability and repeatability of test results.

[0016] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. In the drawings:

[0018] Figure 1 One of the schematic diagrams of the three-dimensional structure of the circulating test device;

[0019] Figure 2 The second schematic diagram of the three-dimensional structure of the circulating test device;

[0020] Figure 3 The third schematic diagram of the three-dimensional structure of the circulating test device;

[0021] Figure 4 The fourth schematic diagram of the three-dimensional structure of the circulating test device;

[0022] Figure 5 For Figure 3 The schematic diagram of the structure at A in the middle.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1, base; 2, leg; 3, heating table; 4, water tank; 5, mounting frame; 6, synchronous wheel; 7, synchronous belt; 8, guide rail; 9, connecting plate; 10, clamping plate; 11, positioning plate; 12, bit plate; 13, first ball screw; 14, fixed plate; 15, guide sleeve; 16, guide rod; 17, combination plate; 18, placement plate; 19, angle seat; 20, electric push rod; 21, plate body; 22, servo motor; 23, second ball screw; 24, translation clamping air cylinder; 25, connecting column.

[0025] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will be further described in detail in combination with the drawings.

[0027] Please refer to Figures 1-5As shown, in the present embodiment provides a lead-cooled fast reactor fuel cladding cycle test device, including the base 1, the base 1 is fixedly connected with two legs 2, two legs 2 between the fixed connection has a sliding mechanism, the sliding mechanism side sliding connection has a clamping piece, the upper side of the base 1 is slidingly connected with a lifting mechanism, the upper side of the lifting mechanism is fixedly connected with a heating table 3 and a water tank 4 from left to right in turn; Heating table 3 and water tank 4 can be fixed on the upper side of the lifting mechanism by screws, rivets, glue and other ways. The main function of the sliding mechanism is to make the clamping piece move smoothly in the device. Through the sliding mechanism, the fuel cladding can move left and right after being fixed by the clamping piece. The clamping piece is used to firmly clamp the fuel cladding, ensuring that the cladding does not fall off or deviate during the experiment, and can move under the driving of the sliding mechanism according to the experimental requirements.

[0028] The lifting mechanism can adjust the height of the heating table 3 and the water tank 4. The adjustable height makes the operating conditions of each experiment can be repeated. The experimenter can set different heights according to the needs, ensuring that the heating and cooling conditions are consistent each time, thereby improving the repeatability and precision of the experimental results. In addition, the lifting mechanism can also realize the state of forward and backward sliding through the mechanism, so that no matter where the fuel shell is located, it can be easily adjusted by fine tuning function to ensure that the clamping piece can smoothly and stably clamp the fuel shell. This forward and backward sliding fine tuning ability greatly improves the flexibility of operation.

[0029] The setting of the lifting mechanism and the upward and downward movable clamping piece can realize the clamping of the fuel shell at different positions of the heating table 3, avoiding the occurrence of motion interference due to the length of the clamping piece.

[0030] The heating table 3 is used to heat the fuel cladding to a specified high temperature to simulate the high temperature environment that the fuel cladding in the lead-cooled fast reactor bears. The water tank 4 is used to quickly cool the heated fuel cladding. The heated cladding is quickly moved into the water tank 4 by the lifting mechanism, so that it quickly drops from high temperature to room temperature, simulating the rapid cooling process in the nuclear reactor. This process is to test whether the coating will crack, peel off and other problems when the temperature changes sharply.

[0031] The sliding mechanism comprises a mounting frame 5 located above the support leg 2, both sides of the inner wall of the mounting frame 5 are rotatably connected with synchronous wheels 6, a synchronous belt 7 is sleeved between the two synchronous wheels 6, the lower part of the inner wall of the mounting frame 5 is fixedly connected with a guide rail 8, one side of the guide rail 8 is slidably connected with a sliding block, one side of the sliding block is fixedly connected with a connecting plate 9 which slides in the mounting frame 5, one side of the connecting plate 9 facing the synchronous belt 7 is fixedly connected with a clamping plate 10, and the synchronous belt 7 is located in the space of the clamping plate 10, both sides of the inner wall of the clamping plate 10 are provided with gear teeth matched with the inner wall teeth of the synchronous belt 7. The synchronous belt 7 can keep stable linear motion and prevent slipping by being connected with the two synchronous wheels 6. The design of the guide rail 8 and the sliding block increases the stability of the sliding component. The guide rail 8 provides a fixed motion track, and the sliding block can move smoothly along the guide rail 8, ensuring the smoothness of the entire sliding process. The gear teeth of the clamping plate 10 match the synchronous belt 7 to ensure that the movement of the clamping plate 10 is synchronized with the movement of the synchronous belt 7.

[0032] In this embodiment, the upper part of the base 1 is fixedly connected with a positioning plate 1211 having a U-shaped space, a first ball screw 13 is rotatably connected in the space of the positioning plate 1211, a fixed plate 14 is fixedly connected to the moving end of the first ball screw 13, and the lifting mechanism is fixedly connected between the fixed plate 14. One side of the positioning plate 1211 is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected between the positioning plate 1211 and the first ball screw 13, the lower part of the fixed plate 14 is fixedly connected with a guide sleeve 15, and the positioning plate 1211 is fixedly connected with a guide rod 16 for the movement of the guide sleeve 15. The front and rear movement of the lifting mechanism can be realized by the first ball screw 13, thereby adjusting the front and rear positions of the heating table 3 and the water tank 4. The adjustment of the front and rear positions can adapt to test samples of different sizes and shapes, enhancing the versatility of the equipment and ensuring sufficient adaptability and operation convenience of the equipment under different experimental conditions.

[0033] The lifting mechanism of the embodiment includes a combination plate 17 fixedly connected between the fixed plate 14, a placing plate 18 located above the combination plate 17, the heating table 3 and the water tank 4 located above the placing plate 18, the connecting seats connected to the two sides of the placing plate 18, the angle seats 19 fixedly connected to the two sides of the combination plate 17, the electric push rods 20 fixedly connected above the angle seats 19, and the connecting seats fixedly connected between the output ends of the electric push rods 20. The placing plate 18 is located above the combination plate 17 and is supported by the combination plate 17. This design makes the weight distribution of the equipment more uniform and can maintain good balance during lifting. The mutual connection of the combination plate 17, the placing plate 18, the angle seats 19 and the electric push rods 20 forms a solid and flexible structure that can withstand load changes under different experimental conditions and realize lifting adjustment. The overall layered design and multi-point fixation enhance the stability of the equipment, reduce the inclination or vibration during lifting, and thus ensure the safety of the equipment and the test sample during the experiment.

[0034] The clamping piece of the embodiment includes a plate body 21 fixedly connected between the connecting plate 9, a servo motor 22 fixedly connected above the plate body 21, a second ball screw 23 connected to the output end of the servo motor 22 through the plate body 21 and a shaft coupling, a sliding plate fixedly connected to the sliding end of the second ball screw 23, a translation clamping air cylinder 24 fixedly connected to one side of the sliding plate, and the air cylinder provides a stable clamping force for the fuel cladding. The air cylinder driving mode enables the clamping operation to be controlled by air pressure, and the clamping force is stable and uniform, which can adapt to fuel claddings of different sizes and shapes. The plate body 21 and the connecting plate 9 are fixedly connected through a connecting column 25.

[0035] Specifically, the device moves a distance of 500 mm to take materials back and forth, the height of the upper and lower arms is 200 mm, and the maximum load is 5 kg. The cooling water temperature and the cooling liquid environment can be customized, such as being replaced by a salt solution, acid, alkali, etc. to simulate actual working conditions. During the experiment, the main concern is the cracking and peeling of the coating, and the number of times of cracking and peeling is counted to evaluate the material's resistance to cold and hot cycle, internal stress size, and bonding force with the substrate.

[0036] Experimental example:

[0037] First, the product obtained using the following raw material mixture:

[0038] Fe:Cr:Al:Y = 605:24:15:05

[0039] Fe:Cr:Al = 67:24:9

[0040] Fe:Cr:Al:Y = 665:24:9:05

[0041] Fe:Cr:Al:Y = 71.5:24:4:0.5

[0042] After the product is prepared, the corrosion resistance of the product is evaluated at 550 DEG C by a testing device.

[0043] The utility model is not limited to the above-mentioned embodiment, any person should know the structural change made under the enlightenment of the utility model, any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the shape, structure part is the known technology.

Claims

1. A test apparatus for fuel cladding cycle testing in a lead-cooled fast reactor, characterized in that, include: The base (1) has two legs (2) fixedly connected above it. A sliding mechanism is fixedly connected between the two legs (2). A clamping part is slidably connected to one side of the sliding mechanism. A lifting mechanism is slidably connected above the base (1). A heating table (3) and a water tank (4) are fixedly connected from left to right above the lifting mechanism. The sliding mechanism includes a mounting frame (5) located above the support leg (2). Both sides of the inner wall of the mounting frame (5) are rotatably connected to synchronous wheels (6). A synchronous belt (7) is sleeved between the two synchronous wheels (6). A guide rail (8) is fixedly connected to the lower part of the inner wall of the mounting frame (5). A slider is slidably connected to one side of the guide rail (8). A connecting plate (9) that slides inside the mounting frame (5) is fixedly connected to one side of the slider. A clamping plate (10) is fixedly connected to the side of the connecting plate (9) facing the synchronous belt (7). The synchronous belt (7) is located in the space of the clamping plate (10). Both sides of the inner wall of the clamping plate (10) are provided with gear teeth that are compatible with the teeth of the inner wall of the synchronous belt (7).

2. The lead-cooled fast reactor fuel cladding cycle testing device according to claim 1, characterized in that, A positioning plate (11) with a U-shaped space is fixedly connected above the base (1). A first ball screw (13) is rotatably connected inside the space of the positioning plate (11). A fixed plate (14) is fixedly connected to the moving end of the first ball screw (13). The lifting mechanism and the fixed plate (14) are fixedly connected.

3. The lead-cooled fast reactor fuel cladding cycle testing device according to claim 2, characterized in that, A drive motor is fixedly connected to one side of the positioning plate (11). The output end of the drive motor passes through the positioning plate (11) and is fixedly connected to the first ball screw (13). A guide sleeve (15) is fixedly connected to the bottom of the fixed plate (14). A guide rod (16) for the guide sleeve (15) to move is fixedly connected in the space inside the positioning plate (11).

4. The lead-cooled fast reactor fuel cladding cycle testing device according to claim 3, characterized in that, The lifting mechanism includes a combination plate (17) fixedly connected to the fixed plate (14) and a placement plate (18) located above the combination plate (17). Both sides of the placement plate (18) are connected to connecting seats. Both sides of the combination plate (17) are fixedly connected to corner seats (19). An electric push rod (20) is fixedly connected above the corner seat (19). The output end of the electric push rod (20) is fixedly connected to the connecting seat.

5. The lead-cooled fast reactor fuel cladding cycle testing device according to claim 1, characterized in that, The clamping component includes a plate (21) fixedly connected to the connecting plate (9). A servo motor (22) is fixedly connected to the top of the plate (21). The output end of the servo motor (22) passes through the plate (21) and is connected to a second ball screw (23) via a coupling. A sliding plate is fixedly connected to the sliding end of the second ball screw (23). A translation clamping cylinder (24) for clamping the fuel casing is fixedly connected to one side of the sliding plate.

6. The lead-cooled fast reactor fuel cladding cycle testing apparatus according to claim 5, characterized in that, A connecting column (25) is fixedly connected between the plate (21) and the connecting plate (9).

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