Support device for integrated reactor thermal-hydraulic experimental equipment

Abstract

This invention discloses a support device for a reactor thermal-hydraulic integrated experimental apparatus. The support device includes a bracket and multiple movable adjustment units. The bracket is used to place the core experimental components of the reactor thermal-hydraulic integrated experimental apparatus. Each movable adjustment unit includes a first pressure plate, a second pressure plate, a connecting rod, a fastener, and an elastic element. The bracket is located between the first and second pressure plates. The connecting rod passes vertically through the first and second pressure plates. The fastener is connected to the connecting rod, and the elastic element abuts against the fastener and the first pressure plate. The bracket is slidably in contact with the first and second pressure plates, allowing the bracket to move horizontally relative to the movable adjustment units. The bracket offsets thermal stress through horizontal movement in any direction, reducing the risk of fatigue failure of the core experimental components due to stress concentration. The fastener can move up and down to adjust the compression of the elastic element, thereby adjusting the static friction threshold at which the bracket and the core experimental components on it begin to slide.

Description

Technical Field

[0001] This invention relates to the technical field of integrated experimental apparatus for reactor thermal-hydraulic systems, and more particularly to a support device for such equipment. Background Technology

[0002] In the research and development of technologies such as critical heat flux density experiments, rod bundle heat transfer experiments, and nuclear-grade equipment testing experiments in reactor engineering, large-scale integrated thermal-hydraulic experimental devices (hereinafter referred to as experimental devices) are essential for conducting experiments. The entire experimental device mainly includes core experimental components, dynamic equipment, static equipment, and pipelines. Due to the large length, volume, and weight of the core experimental components, the inlet and outlet pipelines connected to them alone are insufficient to support their weight. Therefore, an additional support platform needs to be set up on the steel frame to provide overall support for the core experimental components. The parameters required for thermal experiments related to reactor engineering are high. The experimental device needs to operate for a long time under high temperature and high pressure (15MPa, 300℃). When the experimental device progresses from the start-up stage at normal temperature and pressure to the experimental operation stage at high temperature and high pressure, and when the thermal parameters of the experimental device change rapidly during the experimental operation stage, the pipelines and equipment will experience corresponding deformation and thermal stress. This constantly changing stress will be transmitted to the core experimental components, posing a risk of fatigue damage to the core experimental components and the support platform used to support them. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an improved support device for a reactor thermal-hydraulic integrated experimental device.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to provide a support device for a reactor thermal-hydraulic integrated experimental device, which includes a support frame and multiple movable adjustment units; The bracket is used to place the core experimental components of the integrated experimental device for reactor thermal-hydraulic systems. Each of the movable adjustment units includes a first pressure plate, a second pressure plate, a connecting rod, fasteners, and elastic elements. The bracket is located between the first pressure plate and the second pressure plate, the connecting rod passes through the first pressure plate and the second pressure plate in a vertical direction, the fastener is connected to the connecting rod, and the elastic element abuts between the fastener and the first pressure plate; The bracket is slidably in contact with the first pressure plate and the second pressure plate, respectively, so that the bracket can move relative to the movable adjustment unit in the horizontal direction; the fastener can move relative to the connecting rod in the length direction of the connecting rod, thereby adjusting the compression of the elastic element.

[0005] Preferably, a lubricating layer is provided between the first pressure plate and the bracket; and / or, a lubricating layer is provided between the second pressure plate and the bracket.

[0006] Preferably, the support includes a plurality of cylinders, the number of which is the same as the number of the movable adjustment units, and each cylinder is located between the first pressure plate and the second pressure plate; The two axial end faces of the cylinder are slidably in contact with the first pressure plate and the second pressure plate, respectively. The internal cavity of the cylinder is filled with a lubricating substance, which forms a lubricating layer between the end face of the cylinder and the first pressure plate, and / or, the lubricating substance forms a lubricating layer between the end face of the cylinder and the second pressure plate.

[0007] Preferably, the support further includes a plurality of support rods, each of which is connected between two adjacent cylinders, and the support rods are used to place the core experimental component.

[0008] Preferably, the cross-sectional area of ​​the cylinder is smaller than the cross-sectional area of ​​the first pressure plate, and the cross-sectional area of ​​the cylinder is smaller than the cross-sectional area of ​​the second pressure plate.

[0009] Preferably, each of the movable adjustment units further includes a base, and the second pressure plate is disposed on the base; The second pressure plate and the base are slidably in contact, and the surfaces of the second pressure plate and the base that contact each other include arcuate surfaces.

[0010] Preferably, the second pressure plate has a through hole, and the end of the connecting rod away from the first pressure plate passes through the through hole and is fixed on the base. The cross-sectional area of ​​the through hole is larger than the cross-sectional area of ​​the connecting rod.

[0011] Preferably, each of the said active adjustment units further includes a base; The base includes a base and a height adjustment member, which are movably connected to the base. The second pressure plate is disposed on the height adjustment member, which is capable of moving vertically relative to the base.

[0012] Preferably, the base has a groove, the height adjustment member is disposed in the groove, and the outer peripheral surface of the height adjustment member and the inner peripheral surface of the groove are connected by threads.

[0013] Preferably, the base further includes a locking element; The height adjustment component includes a first part and a second part connected to each other. The cross-sectional area of ​​the first part is smaller than that of the second part. The second pressure plate is disposed on the first part. The second part and the inner circumferential surface of the groove are connected by threads. The cross-sectional area of ​​the first portion is smaller than the cross-sectional area of ​​the groove, so as to form a gap between the inner wall surface of the first portion and the groove, and the locking member is disposed in the gap.

[0014] This invention has at least the following beneficial effects: Since the support is used to house the core experimental components of the integrated reactor thermal-hydraulic experimental device, and the support is slidably in contact with the first and second pressure plates, it can slide relative to the movable adjustment unit in the horizontal direction. Therefore, the thermal stress on the core experimental components placed on the support is transferred to the support, and the support can offset this thermal stress by moving in any horizontal direction, thereby effectively reducing the risk of fatigue failure of the core experimental components due to stress concentration. Simultaneously, the fasteners can move relative to the connecting rod along its length to adjust the compression of the elastic element, thereby adjusting the static friction threshold at which the support and the core experimental components on it begin to slide. This avoids displacement of the core experimental components under very small thermal stress, thus preventing unnecessary and frequent shaking of the core experimental components during the experiment, which is detrimental to the normal operation of the experiment, and ensuring the stability of the core experimental components within necessary limits. Attached Figure Description

[0015] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a top view of the support device in some embodiments of the present invention; Figure 2 This is a front view structural schematic diagram of the support device in some embodiments of the present invention; Figure 3 yes Figure 2 An enlarged structural diagram of the cross-sectional structure of part A. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the invention are now described in detail with reference to the accompanying drawings. In the following description, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. When an element is referred to as being "on" or "below" another element, the element can be located "directly" or "indirectly" on the other element, or there may be one or more intermediary elements. The terms "first," "second," and "third," etc., are used only for the convenience of describing the technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0017] The reactor thermal-hydraulic integrated experimental device is used to study thermal parameters (such as temperature, pressure, and flow rate) and hydraulic characteristics (such as flow velocity, resistance, and pressure distribution), and can be applied to scientific research in reactor engineering.

[0018] Please see Figures 1 to 3 This invention discloses a support device for a reactor thermal-hydraulic integrated experimental apparatus. The reactor thermal-hydraulic integrated experimental apparatus includes an experimental device and a support device. The support device supports the core experimental components of the experimental apparatus. The support device includes a bracket 1 and multiple movable adjustment units 2. The bracket 1 is used to place the core experimental components (not shown). When the core experimental components are placed on the bracket 1, the bracket 1 provides vertical support in the Y direction for the core experimental components. Figure 1 In the illustrated embodiment, four movable adjustment units 2 are provided, and the four movable adjustment units 2 are respectively connected to the four diagonal positions of the support 1. Understandably, in other embodiments, the number of movable adjustment units 2 can also be adjusted accordingly, for example, to three, with the three movable adjustment units 2 distributed in a triangle at the three corner areas of the support 1. When the number of movable adjustment units 2 is four, the overall stability of the support device is better.

[0019] Each movable adjustment unit 2 includes a first pressure plate 21, a second pressure plate 22, a connecting rod 23, a fastener 24, and an elastic element 25. A bracket 1 is located between the first pressure plate 21 and the second pressure plate 22. Specifically, the bracket 1 is located between the first pressure plate 21 and the second pressure plate 22 along the vertical direction Y, that is, the first pressure plate 21 and the second pressure plate 22 are located on the upper and lower sides of the bracket 1 along the vertical direction Y, respectively. The connecting rod 23 passes through the first pressure plate 21 and the second pressure plate 22 along the vertical direction Y. The fastener 24 is connected to the connecting rod 23, and the elastic element 25 abuts against the fastener 24 and the first pressure plate 21. Specifically, the connecting rod 23 has an upper end and a lower end; the upper end of the connecting rod 23 is closer to the first pressure plate 21 than its lower end, and the lower end of the connecting rod 23 is closer to the second pressure plate 22 than its upper end. The fastener 24 is connected to the upper end of the connecting rod 23.

[0020] The support 1 is slidably contacted with the first pressure plate 21 and the second pressure plate 22, allowing it to slide horizontally relative to the movable adjustment unit 2. That is, the support 1 is slidably contacted with both the first pressure plate 21 and the second pressure plate 22 of each movable adjustment unit 2, enabling the support 1 to move horizontally relative to the movable adjustment unit 2. The horizontal direction refers to any direction perpendicular to the vertical direction Y. Therefore, the thermal stress on the core experimental component placed on the support 1 is transferred to the support 1, which can offset this thermal stress through horizontal (including multiple) movement, effectively reducing the risk of fatigue failure of the core experimental component due to stress concentration.

[0021] Simultaneously, the fastener 24 can move relative to the connecting rod 23 along its length, meaning it can move up and down relative to the connecting rod 23 in the vertical direction Y, thereby applying different magnitudes of compressive force to the elastic element 25 to adjust its compression. Understandably, since the end of the elastic element 25 furthest from the fastener 24 (i.e., the lower end of the elastic element 25) abuts against the first pressure plate 21, the compression of the elastic element 25 and the magnitude of the compressive force exerted on the first pressure plate 21 by the elastic element 25 are positively correlated. The greater the downward distance of the fastener 24 relative to the connecting rod 23, the smaller the distance between the fastener 24 and the first pressure plate 21, resulting in a greater compression of the elastic element 25 and a greater compressive force on the first pressure plate 21. Consequently, the pressure (preload) in the vertical direction Y on the bracket 1 clamped between the first pressure plate 21 and the second pressure plate 22 is also greater, leading to a greater static frictional force between the bracket 1 and the first pressure plate 21. Only when the horizontal thermal stress on the support 1 exceeds the static sliding friction will the support 1 slide relative to the movable adjustment unit 2 in the horizontal direction to counteract the excess thermal stress. Therefore, by adjusting the compression of the elastic element 25, the static friction threshold at which the support 1 and its core experimental component begin to slide can be adjusted. This static friction threshold can be determined based on the inherent parameters of the core experimental component (volume, weight, sensitivity to force, and the amount of deformation it can withstand) and the experimental temperature at which the core experimental component is located. Specifically, the experimental temperature of the core experimental component is directly proportional to the thermal stress it generates; the higher the temperature, the greater the thermal stress, and the greater the rate of temperature change, the greater the rate of change of thermal stress. Therefore, before the experiment begins, the range of thermal stress that the core experimental component may generate can be estimated based on the designed range of the experimental temperature, and the static friction threshold at which the support 1 and its core experimental component begin to slide can be determined based on the deformation that the core experimental component itself can withstand. Finally, the compression of the elastic element 25 is determined, and the compression of the elastic element 25 is adjusted by moving the position of the fastener 24. This avoids displacement of the core experimental component under very small thermal stress, thus preventing unnecessary and frequent shaking during the experiment, which is detrimental to the normal conduct of the experiment and ensuring the stability of the core experimental component within necessary limits. For example, assuming that the maximum deformation that a core experimental component can withstand is 5 mm, the static friction threshold at which the support 1 and the core experimental component on it begin to slide is adjusted to a preset threshold. This preset threshold ensures that when the deformation of the core experimental component reaches 5 mm, the support 1 begins to drive the core experimental component on it to slide horizontally relative to the movable adjustment unit 2, thereby offsetting some of the thermal stress and controlling the deformation of the core experimental component to not exceed 5 mm.

[0022] In summary, the support device of the present invention has at least the following beneficial technical effects: (1) Since the support 1 is used to place the core experimental component, and the support 1 is slidably in contact with the first pressure plate 21 and the second pressure plate 22 respectively, the support 1 can slide relative to the movable adjustment unit 2 in the horizontal direction. As a result, the thermal stress on the core experimental component placed on the support 1 is transferred to the support 1, and the support 1 can offset this part of the thermal stress by moving in any horizontal direction, thereby effectively reducing the risk of fatigue failure of the core experimental component due to stress concentration.

[0023] (2) At the same time, the fastener 24 can move relative to the connecting rod 23 along the length direction of the connecting rod 23 to adjust the compression of the elastic element 25, thereby adjusting the static friction threshold at which the support 1 and the core experimental component on it begin to slide. Thus, it is possible to avoid the core experimental component from displacing under very small thermal stress, thereby avoiding unnecessary and frequent shaking of the core experimental component during the experiment, which is detrimental to the normal conduct of the experiment, and ensuring the stability of the core experimental component within the necessary limits.

[0024] like Figure 3 As shown, in some embodiments, fastener 24 may include two nuts. The two nuts are redundant to prevent fastener 24 from loosening and failing during long-term use. The elastic element 25 may be a disc spring. Of course, fastener 24 and elastic element 25 are not limited to the specific components described above.

[0025] In some embodiments, a lubricating layer is provided between the first pressure plate 21 and the bracket 1. Also, a lubricating layer is provided between the second pressure plate 22 and the bracket 1. Alternatively, a lubricating layer may be provided only between the first pressure plate 21 and the bracket 1; or, a lubricating layer may be provided only between the second pressure plate 22 and the bracket 1. Specifically, please refer to... Figures 1 to 3The support 1 includes multiple cylinders 10, the number of which matches the number of movable adjustment units 2. Each cylinder 10 is located between a first pressure plate 21 and a second pressure plate 22. The two axial end faces of each cylinder 10 are slidably in contact with the first pressure plate 21 and the second pressure plate 22, respectively. The internal cavity 100 of each cylinder 10 is filled with a lubricating substance, forming a lubricating layer between the end face of the cylinder 10 and the first pressure plate 21; and / or, forming a lubricating layer between the end face of the cylinder 10 and the second pressure plate 22. Specifically, a lubricating layer is formed between the upper end face of the cylinder 10 and the lower end face of the first pressure plate 21. A lubricating layer is also formed between the lower end face of the cylinder 10 and the upper end face of the second pressure plate 22. The lubricating substance filling the internal cavity 100 of the cylinder 10 will seep into the gap at the junction of the upper end face of the cylinder 10 and the lower end face of the first pressure plate 21, thereby reducing the friction between the cylinder 10 and the first pressure plate 21 during relative sliding. Similarly, the lubricating substance filling the internal cavity 100 of the cylinder 10 will also seep into the gap at the junction of the lower end face of the cylinder 10 and the upper end face of the second pressure plate 22, thereby reducing the friction between the cylinder 10 and the second pressure plate 22 during relative sliding.

[0026] like Figures 1 to 3 As shown, in some embodiments, the support 1 further includes multiple support rods 11, each support rod 11 connected between two adjacent cylinders 10, and the support rods 11 are used to place the core experimental components. Specifically, the support rods 11 and the cylinders 10 can be welded together, or they can be connected in other ways. For example... Figure 1 In the illustrated embodiment, there are at least four support rods 11, each of which connects to two adjacent cylinders 10, forming a rectangular frame structure. To further improve structural stability, reinforcing rods 12 can also be provided between two parallel support rods 11.

[0027] like Figure 3As shown, in some embodiments, each movable adjustment unit 2 further includes a base 26, and a second pressure plate 22 is disposed on the base 26. The second pressure plate 22 and the base 26 are slidably in contact, and the surfaces of the second pressure plate 22 and the base 26 that contact each other include arcuate surfaces. That is, the surface of the second pressure plate 22 facing the base 26 includes an arcuate surface, and the surface of the base 26 facing the second pressure plate 22 includes an arcuate surface. These two arcuate surfaces are adapted to each other, so that the second pressure plate 22 can tilt and slide relative to the base 26 along the arcuate surface in a non-horizontal state to automatically return to a horizontal state. The tilting and sliding of the second pressure plate 22 will cause the support 1 and the core experimental component to move together to achieve automatic leveling of the support 1. That is, if the placement surface on which the base 26 is located is an uneven or tilted surface, the second pressure plate 22 will undergo adaptive offset, thereby ensuring that the second pressure plate 22, the support 1, and the first pressure plate 21 always remain in a horizontal position, and thus ensuring that the sliding direction of the support 1 is always horizontal. That is, the horizontal state of the support 1 is not affected by the flatness or levelness of the placement surface on which the base 26 is located. Furthermore, when the core experimental component is subjected to thermal stress in the vertical Y direction, the slight tilt of the second pressure plate 22 can compensate for the thermal stress in the vertical Y direction. Therefore, the support device of the present invention can compensate for thermal stress in multiple directions, significantly reducing the risk of fatigue failure of the core experimental component due to stress concentration.

[0028] like Figure 3 As shown, in some embodiments, the cross-sectional area of ​​the cylinder 10 is smaller than the cross-sectional area of ​​the first pressure plate 21, and the cross-sectional area of ​​the cylinder 10 is also smaller than the cross-sectional area of ​​the second pressure plate 22. Thus, the difference in cross-sectional area between the first pressure plate 21 and the cylinder 10, and the difference in cross-sectional area between the second pressure plate 22 and the cylinder 10, together constitute the space for the cylinder 10 to slide horizontally. The cross-sectional area of ​​the first pressure plate 21 can be equal to the cross-sectional area of ​​the second pressure plate 22.

[0029] like Figure 3 As shown, in some embodiments, the second pressure plate 22 is provided with a through hole 220. The end of the connecting rod 23 away from the first pressure plate 21 (i.e., the lower end of the connecting rod 23) passes through the through hole 220 and is fixed to the base 26. The cross-sectional area of ​​the through hole 220 is larger than the cross-sectional area of ​​the connecting rod 23. Thus, there is a certain relative space for movement between the second pressure plate 22 and the connecting rod 23, allowing the second pressure plate 22 to perform adaptive offset and tilting movements.

[0030] like Figure 3As shown, in some embodiments, each movable adjustment unit 2 further includes a base 26. The base 26 includes a base 261 and a height adjustment member 262. The height adjustment member 262 and the base 261 are movably connected. A second pressure plate 22 is disposed on the height adjustment member 262. The height adjustment member 262 is movable relative to the base 261 in the vertical direction Y. Specifically, the base 261 serves as the mounting base for the height adjustment member 262. When the height adjustment member 262 moves relative to the base 261 in the vertical direction Y, it can drive the second pressure plate 22, the first pressure plate 21, and the bracket 1 above the height adjustment member 262 to move together as a whole in the vertical direction Y, thereby adjusting the height of the second pressure plate 22 of each movable adjustment unit 2. Since the placement surface of each movable adjustment unit 2 is not necessarily located on the same plane, for example, in the field environment, the placement surface of one movable adjustment unit 2 (e.g., the ground) may be lower than the placement surfaces of other movable adjustment units 2, which will cause the bracket 1 and its core experimental components to no longer be horizontal. To solve this problem, simply raise the height adjustment component 262 of the movable adjustment unit 2 that is located on the lower surface. This will ensure that the second pressure plate 22 of all movable adjustment units 2 are on the same horizontal plane, thereby ensuring the levelness of the bracket 1.

[0031] In summary, the surfaces of the second pressure plate 22 and the base 26 that come into contact with each other include arc-shaped surfaces, which gives the second pressure plate 22 the ability to self-adjust tilt. In addition, the height adjustment component 262 can adjust the height of the second pressure plate 22 of each movable adjustment unit 2. Therefore, the support device has a very flexible self-adjusting leveling function, which can adapt to different on-site installation environments and does not have high requirements for the flatness of the on-site placement surface (such as the ground). Therefore, the support device has a wide range of applications, high flexibility, and is relatively easy to install.

[0032] Furthermore, such as Figure 3 As shown, in some embodiments, the base 261 has a groove 2610, and a height adjustment member 262 is disposed within the groove 2610. The outer peripheral surface of the height adjustment member 262 and the inner peripheral surface of the groove 2610 are connected by threads. Therefore, the height of the second pressure plate 22 can be adjusted simply by turning the height adjustment member 262. For example, a positioning hole can be provided on the upper surface of the height adjustment member 262. By inserting a special tool into the positioning hole and rotating the tool, the height adjustment member 262 can be controlled to rotate in and out of the groove 2610 to adjust its height. This operation is simple and reliable.

[0033] Furthermore, such as Figure 3As shown, in some embodiments, the base 26 further includes a locking member 263. The height adjustment member 262 includes a first portion 2621 and a second portion 2622 connected together. The cross-sectional area of ​​the first portion 2621 is smaller than that of the second portion 2622. A second pressure plate 22 is disposed on the first portion 2621. The second portion 2622 and the inner circumferential surface of the groove 2610 are connected by threads. The cross-sectional area of ​​the first portion 2621 is smaller than that of the groove 2610 to form a gap between the inner wall surfaces of the first portion 2621 and the groove 2610. The locking member 263 is disposed in the gap. That is, the height adjustment member 262 is inverted T-shaped. The locking member 263 is used to lock the height of the height adjustment member 262. When the height adjustment component 262 reaches the designated height position, the lower end face of the locking component 263 abuts against the upper end face of the second part 2622 of the height adjustment component 262. The displacement of the height adjustment component 262 is constrained by the locking component 263, which serves to limit the height adjustment component 262 and prevent debris from entering the groove 2610. Specifically, the outer peripheral surface of the locking component 263 and the inner peripheral surface of the groove 2610 can also be connected by a thread. By screwing the locking component 263, the height of the locking component 263 can be adjusted to provide locking limits for the height adjustment component 262 at different height positions. Specifically, similar to the operation of the height adjustment component 262, a positioning hole can be provided on the upper surface of the locking component 263. By inserting a special tool into the positioning hole and rotating the tool, the locking component 263 can be controlled to screw in and out within the gap between the first part 2621 and the inner wall surface of the groove 2610 to adjust the height of the locking component 263 until the height adjustment component 262 is locked by the locking component 263.

[0034] like Figure 3 As shown, in some embodiments, the base 261 includes a fixed support 2611 and a base plate 2612, with the base plate 2612 located below the fixed support 2611. The fixed support 2611 and the base plate 2612 can be connected by bolts. Furthermore, flat washers are provided between the contact surfaces around the bolt holes of the fixed support 2611 and the base plate 2612. The circumferential inner wall surface of the fixed support 2611 and the upper surface of the base plate 2612 together form a groove 2610. The fixed support 2611 has a square annular structure, with its annular hollow portion being circular and provided with threads that mate with the height adjustment member 262 and the locking member 263. The material of the fixed support 2611 is high-strength alloy structural steel. A first bolt hole is machined on the bottom surface of the fixed support 2611, and a second bolt hole is provided on the base plate 2612 at the position corresponding to the first bolt hole. After the bolt passes through the first bolt hole, it is fixed in the second bolt hole to realize the fixed connection between the fixed support 2611 and the base plate 2612.

[0035] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A support device for a reactor thermal-hydraulic integrated experimental setup, characterized in that, Includes a support frame (1) and multiple adjustable units (2); The bracket (1) is used to place the core experimental components of the reactor thermal-hydraulic integrated experimental device. Each of the movable adjustment units (2) includes a first pressure plate (21), a second pressure plate (22), a connecting rod (23), a fastener (24), and an elastic element (25). The bracket (1) is located between the first pressure plate (21) and the second pressure plate (22), the connecting rod (23) passes through the first pressure plate (21) and the second pressure plate (22) in the vertical direction (Y), the fastener (24) is connected to the connecting rod (23), and the elastic element (25) abuts between the fastener (24) and the first pressure plate (21); The bracket (1) is slidably in contact with the first pressure plate (21) and the second pressure plate (22) respectively, so that the bracket (1) can move relative to the movable adjustment unit (2) in the horizontal direction; the fastener (24) can move relative to the connecting rod (23) in the length direction of the connecting rod (23), thereby adjusting the compression of the elastic element (25).

2. The support device according to claim 1, characterized in that, A lubricating layer is provided between the first pressure plate (21) and the bracket (1); and / or, a lubricating layer is provided between the second pressure plate (22) and the bracket (1).

3. The support device according to claim 2, characterized in that, The bracket (1) includes a plurality of cylinders (10), the number of cylinders (10) is the same as the number of movable adjustment units (2), and each cylinder (10) is located between the first pressure plate (21) and the second pressure plate (22); The two axial end faces of the cylinder (10) are slidably in contact with the first pressure plate (21) and the second pressure plate (22), respectively. The internal cavity (100) of the cylinder (10) is filled with a lubricating substance. The lubricating substance forms a lubricating layer between the end face of the cylinder (10) and the first pressure plate (21), and / or, the lubricating substance forms a lubricating layer between the end face of the cylinder (10) and the second pressure plate (22).

4. The support device according to claim 3, characterized in that, The support (1) also includes a plurality of support rods (11), each of the support rods (11) being connected between two adjacent cylinders (10), and the support rods (11) being used to place the core experimental component.

5. The support device according to claim 3, characterized in that, The cross-sectional area of ​​the cylinder (10) is smaller than the cross-sectional area of ​​the first pressure plate (21), and the cross-sectional area of ​​the cylinder (10) is smaller than the cross-sectional area of ​​the second pressure plate (22).

6. The support device according to claim 1, characterized in that, Each of the aforementioned movable adjustment units (2) further includes a base (26), on which the second pressure plate (22) is disposed; The second pressure plate (22) and the base (26) are slidably in contact, and the surfaces of the second pressure plate (22) and the base (26) that are in contact with each other include arcuate surfaces.

7. The support device according to claim 6, characterized in that, The second pressure plate (22) is provided with a through hole (220). The end of the connecting rod (23) away from the first pressure plate (21) passes through the through hole (220) and is fixed on the base (26). The cross-sectional area of ​​the through hole (220) is larger than the cross-sectional area of ​​the connecting rod (23).

8. The support device according to claim 1, characterized in that, Each of the aforementioned active adjustment units (2) also includes a base (26); The base (26) includes a base (261) and a height adjustment member (262), the height adjustment member (262) and the base (261) are movably connected, the second pressure plate (22) is disposed on the height adjustment member (262), and the height adjustment member (262) is movable relative to the base (261) in the vertical direction (Y).

9. The support device according to claim 8, characterized in that, The base (261) has a groove (2610) formed therein, and the height adjustment member (262) is disposed in the groove (2610). The outer peripheral surface of the height adjustment member (262) and the inner peripheral surface of the groove (2610) are connected by threads.

10. The support device according to claim 9, characterized in that, The base (26) also includes a locking element (263); The height adjustment component (262) includes a first part (2621) and a second part (2622) connected to each other. The cross-sectional area of ​​the first part (2621) is smaller than that of the second part (2622). The second pressure plate (22) is disposed on the first part (2621). The second part (2622) and the inner circumferential surface of the groove (2610) are connected by threads. The cross-sectional area of ​​the first portion (2621) is smaller than that of the groove (2610) to form a gap between the inner wall surfaces of the first portion (2621) and the groove (2610), and the locking member (263) is disposed in the gap.

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