Actuator heat insulation support for high-temperature dynamic test

Abstract

According to the actuator heat insulation support for the high-temperature dynamic test, one end of the heat insulation support is connected with an actuator, the other end of the heat insulation support is connected with a test body, and a cooling medium is arranged in the heat insulation support and cools heat generated by the test body. The external structure of the device is cylindrical, and the upper and lower surfaces are connecting platforms of a test piece and an actuator. According to the whole structure, on the premise that the structural strength and the dynamic transfer characteristic are guaranteed, the heat of the support is dissipated through the internal cooling water flow channel in a water circulation mode, so that the heat of the test body is prevented from being conducted to the actuator, and the whole performance of the actuator is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anti-seismic technology of nuclear-grade equipment, and particularly relates to a heat-insulating support for actuator used in high-temperature dynamic test. BACKGROUND

[0002] The dynamic test of the mechanical identification test of the nuclear-grade equipment is a key test for testing whether the structure of the nuclear-grade equipment can remain intact and the function can remain normal under vibration and anti-seismic load. When low-frequency vibration load is used by single-point or multi-point excitation, the hydraulic actuator is often the first choice of the test excitation equipment.

[0003] In actual engineering application, in the past decades, the domestic technology is mainly based on the pressurized water reactor, and the single-point or multi-point excitation test of the slender structure such as the control rod drive line or the drive mechanism is often carried out at room temperature. However, with the development of the high-temperature new reactor type, the temperature environment boundary of the dynamic test of the core components such as the control rod drive line or the drive mechanism is required to be higher, and the performance of the hydraulic actuator itself cannot withstand the high-temperature working environment. Therefore, a support is needed, which can connect the hydraulic actuator to meet the force transmission and block the heat conduction of the test body to affect the performance of the hydraulic actuator.

[0004] The current anti-seismic test of the pressurized water reactor drive mechanism or the drive line is carried out at room temperature, and the influence of temperature on the performance of the excitation actuator does not need to be considered. However, with the research on the high-temperature reactor type, the vibration and anti-seismic test of the control rod drive line needs to simulate higher temperature boundary conditions, and when the excitation point position is connected with the test actuator, the high temperature will be conducted to the actuator cylinder, thereby greatly affecting the performance of the hydraulic actuator. SUMMARY

[0005] The present application aims at the requirement of the anti-seismic test of the control rod drive line of the high-temperature liquid metal reactor, and provides a heat-insulating support for actuator used in high-temperature dynamic test.

[0006] The technical scheme of the present application is as follows: a heat-insulating support for actuator used in high-temperature dynamic test, one end of the heat-insulating support is connected with the actuator, the other end is connected with the test body, and the heat-insulating support is internally provided with cooling medium to cool the heat generated by the test body.

[0007] The heat-insulating support comprises a mounting flange, one side of the mounting flange is connected with an auxiliary support, the auxiliary support is connected with the actuator, the other side is connected with a horizontal actuator connecting plate through a connecting column, the horizontal actuator connecting plate is connected with the actuator, and the test body is located inside the mounting flange; a plurality of inner heat-conducting plates are welded on the side surface of the connecting column, an outer shell body is mounted on the outer side of the inner heat-conducting plates, an outer heat-conducting plate is welded inside the outer shell body, the outer heat-conducting plate and the inner heat-conducting plate are cross-distributed to form a cooling water medium channel; the outer shell body is provided with an outlet and an inlet of cooling water.

[0008] Cooling water medium channels are present on the outer periphery of the connecting columns.

[0009] The center of the horizontal actuator connecting plate coincides with the axis of the connecting column.

[0010] The mounting flange and outer casing are made of stainless steel.

[0011] The heat-insulating support includes a support cylinder, with a mounting base plate connected to the upper end of the support cylinder, and the mounting base plate connected to the test body; a connecting plate is welded to the lower end of the support cylinder, and an actuator is mounted on the connecting plate; the upper and lower ends of the support cylinder are respectively welded to the inlet pipe and outlet pipe of the cooling medium; the support cylinder contains a flow guide and multiple partition plates and flow guide baffles, wherein the partition plates are connected to the inner wall of the support cylinder and a gap is left between them and the flow guide; the flow guide baffles are connected to the flow guide and a gap is left between them and the support cylinder; the partition plates and the flow guide are arranged crosswise in the support cylinder to form a cooling medium channel.

[0012] The flow guide includes a flow guide baffle and multiple flow guide columns, which are symmetrically distributed on the upper and lower sides of the flow guide baffle and have water holes.

[0013] The axis of the guide column coincides with the center.

[0014] Reinforcing ribs are evenly distributed and welded at the root of the supporting cylinder.

[0015] The support cylinder is made of standard seamless steel pipe.

[0016] The significant advantages of this invention are: the external structure adopts a cylindrical shape, with the upper and lower surfaces serving as connection platforms for the test piece and the actuator. While ensuring structural strength and dynamic transmission characteristics, the overall structure dissipates heat from the support through internal cooling water channels using a water circulation method, thereby preventing heat transfer from the test body to the actuator and ensuring the overall performance of the actuator.

[0017] The support can be used to connect the test body and the actuator, and can effectively transmit vibration or displacement loads;

[0018] The horizontal actuator support features an S-shaped flow channel design, which effectively increases the heat dissipation area and smoothly guides the cooling water.

[0019] The vertical actuator support adopts an interlayer perforated plate flow channel design, which can effectively increase the heat dissipation area and smoothly guide the cooling water. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the heat insulation support (horizontal actuator support) used in high-temperature dynamic testing.

[0021] Figure 2 This is a detailed diagram of the flow channel of the horizontal actuator support;

[0022] Figure 3-1 This is a schematic diagram of the structure of the heat insulation support (vertical actuator support) for high-temperature dynamic testing.

[0023] Figure 3-2 It is a top view;

[0024] Figure 4 This is a detailed diagram of the flow channel of the vertical actuator support;

[0025] In the diagram: 1-Mounting flange, 2-Auxiliary support, 3-Horizontal actuator connecting plate, 4-Connecting column, 5-Inner heat conduction plate (several), 6-Outer heat conduction plate (several), 7-Outer shell.

[0026] 11-Connecting plate, 12-Supporting cylinder, 13-Divider plate (several), 14-Flow guide (several), 15-Reinforcing rib, 16-Mounting base plate, 17-Outlet pipe, 18-Inlet pipe, 19-Flow guide column, 20-Flow guide baffle. Detailed Implementation

[0027] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0028] The terminology used in one or more embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this application. The singular forms “a,” “the,” and “the” used in one or more embodiments of this application and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” used in one or more embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0029] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this application, and similarly, second may also be referred to as first.

[0030] The function of the high-temperature dynamic test actuator heat insulation support described in this article is that, through this support, the excitation load generated by the actuator can be effectively transferred to the test body when conducting high-temperature dynamic tests on the control rod drive line, and the performance of the actuator itself will not be affected by the high temperature of the test body.

[0031] Example 1

[0032] This embodiment involves a horizontal actuator support, such as... Figure 1 , 2 As shown, the high-temperature dynamic test actuator heat insulation support includes a mounting flange 1, which serves as the base for mounting the test piece. An auxiliary support 2 is welded to one side of the flange; a connecting column 4 with a horizontal actuator connecting plate 3 is welded to the other side. The connecting plate 3 connects to the actuator, while the test body is located inside the mounting flange 1. Several inner heat-conducting plates 5 are welded to the outside of the connecting column 4. An outer shell 7 is installed outside the inner heat-conducting plates 5. The interior of the outer shell 7 is welded with outer heat-conducting plates 6, which are intersected with the inner heat-conducting plates 5 to form a cooling water medium channel. The outer shell 7 has a cooling water outlet and inlet.

[0033] Cooling water medium channels are present on the outer periphery of the connecting column 4.

[0034] Specifically, mounting flange 1 and outer casing 7 are made of stainless steel.

[0035] Specifically, the auxiliary support 2 does not come into contact with the medium and can be made of ordinary carbon steel.

[0036] Specifically, the center of the horizontal actuator connecting plate 3 coincides with the axis of the connecting column 4;

[0037] Example 2

[0038] This embodiment involves a vertical actuator support, such as... Figure 3-1 , 3-2 As shown in Figure 4, the actuator heat insulation support for the high-temperature dynamic test includes a support cylinder 12. A mounting base plate 16 is connected to the upper end of the support cylinder 12, and the mounting base plate 16 is connected to the test body. A connecting plate 11 is welded to the lower end of the support cylinder 12, and the actuator is mounted on the connecting plate 11. An inlet pipe 18 and an outlet pipe 17 of the cooling medium are welded to the upper and lower ends of the support cylinder 12, respectively. The support cylinder 12 contains multiple partition plates 13 and flow guide plates 20. The partition plates 13 are connected to the inner wall of the support cylinder 12, with a gap between them and the flow guide 14. The flow guide plates 20 are connected to the flow guide 14, with a gap between them and the support cylinder 12. The partition plates 13 and the flow guide 14 are arranged crosswise within the support cylinder 12, forming a cooling medium channel.

[0039] Specifically, the flow guide 14 includes multiple flow guide columns 19, which are symmetrically distributed on the upper and lower sides of the flow guide baffle 20, and water holes are opened on the flow guide columns 19. The cooling medium flows through the flow guide columns 19 into the cooling medium channel, thereby achieving the cooling effect.

[0040] Preferably, the axis of the flow guide column 19 coincides with the center of 20, and the flow guide baffle 20 and the flow guide column 19 are preferably made of stainless steel.

[0041] Preferably, reinforcing ribs 15 are evenly distributed and welded at the root of the supporting cylinder 12;

[0042] The support cylinder 12 is made of standard seamless steel pipe;

[0043] In specific tests, multiple actuators are installed using horizontal or vertical heat-insulated actuator supports, depending on the specific circumstances. The test body is then installed inside the mounting flange 1 of the horizontal heat-insulated actuator support or on the mounting base plate 16 of the vertical heat-insulated actuator support. Cooling medium is introduced to cool the heat generated by the test body, thereby preventing the actuator from being affected by heat.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0045] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0046] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0047] The preferred embodiments disclosed above are merely illustrative of this application. The optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this application. These embodiments are selected and specifically described in this application to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application.

Claims

1. A high-temperature dynamic test actuator heat insulation support, characterized in that: One end of the heat-insulating support is connected to the actuator, and the other end is connected to the test body. The heat-insulating support contains a cooling medium to cool the heat generated by the test body.

2. The high-temperature dynamic test actuator heat insulation support according to claim 1, characterized in that: The heat-insulating support is a horizontal heat-insulating actuator support, including a mounting flange (1), an auxiliary support (2) connected to one side of the mounting flange (1), and the auxiliary support (2) connected to the actuator; the other side is connected to the horizontal actuator connecting plate (3) through the connecting column (4), and the horizontal actuator connecting plate (3) is connected to the actuator, while the test body is located inside the mounting flange (1); several inner heat-conducting plates (5) are welded to the side of the connecting column (4), and the outer shell (7) is installed on the outside of the inner heat-conducting plates (5). The outer shell (7) is welded with an outer heat-conducting plate (6) inside, and the outer heat-conducting plate (6) and the inner heat-conducting plate (5) are distributed crosswise to form a cooling water medium channel; the outer shell (7) has an outlet and an inlet for cooling water.

3. A high-temperature dynamic test actuator heat insulation support according to claim 2, characterized in that: The outer periphery of the connecting column (4) has cooling water medium channels.

4. A high-temperature dynamic test actuator heat insulation support according to claim 3, characterized in that: The center of the horizontal actuator connecting plate (3) coincides with the axis of the connecting column (4).

5. A high-temperature dynamic test actuator heat insulation support according to claim 4, characterized in that: The mounting flange (1) and the outer casing (7) are made of stainless steel.

6. A high-temperature dynamic test actuator heat insulation support according to claim 1, characterized in that: The heat-insulating support is a vertical actuator heat-insulating support, including a support cylinder (12), the upper end of the support cylinder (12) is connected to a mounting base plate (16), and the mounting base plate (16) is connected to the test body; a connecting plate (11) is welded to the lower end of the support cylinder (12), and the actuator is installed on the connecting plate (11); the upper end and the lower end of the support cylinder (12) are respectively welded to the inlet pipe (18) and the outlet pipe (17) of the cooling medium; and the support cylinder (12) The container contains a flow guide (14) and multiple partition plates (13) and flow guide baffles (20). The partition plates (13) are connected to the inner wall of the support cylinder (12) and have a gap between them and the flow guide (14). The flow guide baffles (20) are connected to the flow guide (14) and have a gap between them and the support cylinder (12). The partition plates (13) and the flow guide (14) are arranged crosswise in the support cylinder (12) to form a cooling medium channel.

7. A high-temperature dynamic test actuator heat insulation support according to claim 6, characterized in that: The flow guide (14) includes a flow guide baffle (20) and multiple flow guide columns (19). The flow guide columns (19) are symmetrically distributed on the upper and lower sides of the flow guide baffle (20), and water holes are opened on the flow guide columns (19).

8. A high-temperature dynamic test actuator heat insulation support according to claim 7, characterized in that: The axis of the guide column (19) coincides with the center of (20).

9. A high-temperature dynamic test actuator heat insulation support according to claim 8, characterized in that: The root of the supporting cylinder (12) is uniformly distributed with welded reinforcing ribs (15).

10. A high-temperature dynamic test actuator heat insulation support according to claim 9, characterized in that: The support cylinder (12) is made of standard seamless steel pipe.

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