Telescopic mounting bracket for a nuclear power plant patch-type temperature element

Abstract

The utility model relates to auxiliary device technical field for nuclear power plant, especially a telescopic mounting support for patch type temperature element of nuclear power plant, including installation fixed block, the fixed guide column in the middle part of installation fixed block, the slow shock support column in the fixed guide axle around, and the support support of setting up in fixed guide column and with slow shock support column swing joint, installation fixed block is provided with the installation groove that is compatible with patch type temperature element in the side away from support support, when using, patch type temperature element is embedded in the installation groove, pipeline and patch type temperature element are pasted, utilize the external hoop to hold tightly pipeline and telescopic mounting support, realize the fixation that pipeline compares telescopic mounting support, the telescopic mounting support that the utility model provides can compensate this gap through the pre -tightening force of spring, the setting of first spring can also prevent the displacement change caused by the loosening compensation temperature of adjusting nut.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for nuclear power plants, and in particular to a telescopic mounting bracket for patch-type temperature elements in nuclear power plants. Background Technology

[0002] As a crucial component of a nuclear power plant, the nuclear island contains numerous pipelines carrying radioactive media. Currently, most temperature elements are installed through openings in these pipelines. However, due to radiation protection requirements, openings cannot be made in the reactor building and pipelines containing radioactive media, necessitating the use of surface-mount temperature elements. Currently, there are no reliable mounting brackets for these surface-mount temperature elements. Common fixing methods include: 1) Fixing the temperature element to the pipeline using clamps or brackets: While clamps and brackets secure the temperature element, they cannot ensure a tight fit due to fluctuating pipeline temperatures, leading to significant discrepancies between the actual on-site temperature and the temperature reported by the element. Furthermore, the flow of media within the pipeline generates substantial vibrations, which can loosen clamps and brackets, or even cause the temperature element to detach. 2) Using magnetic fixation: The high temperature of the media in the pipeline can demagnetize the temperature element, weakening its magnetism and causing it to detach. In summary, both installation methods can lead to abnormal temperature readings during system operation, affecting the monitoring of the unit's safe operation and, in severe cases, jeopardizing nuclear safety.

[0003] Therefore, it is crucial to provide a technical solution that can solve the above-mentioned technical problems. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a telescopic mounting bracket for surface-mount temperature elements in nuclear power plants.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] This utility model provides a telescopic mounting bracket for surface-mount temperature elements in nuclear power plants, including a mounting block, a fixed guide column located in the middle of the mounting block, a shock-absorbing support column located around the fixed guide column, and a support bracket sleeved on the fixed guide column and movably connected to the shock-absorbing support column; the mounting block has a mounting groove adapted to the surface-mount temperature element on the side away from the support bracket.

[0007] In use, the surface-mount temperature element is embedded in the mounting groove, and the pipe is attached to the surface-mount temperature element. The pipe is then secured to the telescopic mounting bracket using an external clamp.

[0008] Furthermore, the mounting block is fixedly connected to the fixed guide post.

[0009] Furthermore, the fixed guide post includes a first guide post connected to the mounting block and a second guide post disposed on the side of the first guide post away from the fixed guide post.

[0010] Furthermore, the first guide post and the second guide post are aligned along the same vertical axis.

[0011] Furthermore, the outer diameter of the first guide post is larger than the outer diameter of the second guide post.

[0012] Furthermore, the support bracket is an L-shaped support bracket, including a horizontal bracket and a vertical bracket;

[0013] The transverse support is provided with guide holes adapted to the guide fixing column, and also with holes for movable connection with the shock-absorbing support column.

[0014] Furthermore, the inner diameter of the guide hole is larger than the outer diameter of the first guide post and smaller than the outer diameter of the second guide post.

[0015] Furthermore, the shock-absorbing support column includes a support column and a first spring and a second spring sleeved on the outside of the support column;

[0016] A first spring is sleeved on the outside of the support column located on the upper surface of the mounting block and the lower surface of the transverse bracket;

[0017] A second spring is fitted on the outside of the support column located on the upper surface of the horizontal bracket. The side of the second spring away from the first spring is fixed by a nut that is movably connected to the support column.

[0018] Furthermore, several shock-absorbing support columns are provided.

[0019] Furthermore, the original length of the first spring is less than the length of the fixed guide post, but greater than the length of the first guide post.

[0020] Furthermore, the mounting block is a 316 stainless steel mounting block; the first spring is a high-strength compression spring; the second spring is a high-strength compression spring; and the support bracket is a 316 stainless steel support bracket.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The operating temperature of the cold leg and hot leg of the pressure vessel in the reactor building can reach (280~300℃). Both the pipes and supports are thermally expanded. Due to the different expansion coefficients, the temperature element and the pipe will have a gap. The original installation method cannot compensate for this gap. However, the telescopic mounting bracket provided by this utility model can compensate for this gap by the pre-tightening force of the spring. The setting of the first spring can also prevent the adjusting nut from loosening and compensate for the displacement change caused by temperature.

[0023] (2) The telescopic mounting bracket provided by this utility model is composed entirely of mechanical parts, with high reliability, simple structure, easy installation and disassembly, low cost, wide range of applications, and can be used for all pipelines on site. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the mechanism of a telescopic mounting bracket for a surface-mount temperature element in a nuclear power plant according to the present invention.

[0025] The following are the labels in the diagram: 1. Mounting block; 2. Mounting groove; 3. First guide post; 4. Second guide post; 5. Support post; 6. First spring; 7. Second spring; 8. Nut; 9. Vertical bracket; 10. Horizontal bracket. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] In the following embodiments, unless otherwise specified, the structures or components used are conventional structures or components in the art, as long as they can achieve the corresponding functions.

[0031] Example 1

[0032] This embodiment provides a telescopic mounting bracket for surface-mount temperature elements in nuclear power plants, such as... Figure 1 As shown, it includes a mounting block 1, a fixed guide column located in the middle of the mounting block 1, a shock-absorbing support column 5 located around the fixed guide shaft, and a support bracket sleeved on the fixed guide column and movably connected to the shock-absorbing support column 5; the mounting block 1 is provided with a mounting groove 2 adapted to the patch-type temperature element on the side away from the support bracket.

[0033] Furthermore, the mounting block 1 is fixedly connected to the fixed guide post, and the fixed guide post includes a first guide post 3 connected to the mounting block 1 and a second guide post 4 disposed on the side of the first guide post 3 away from the fixed guide post; wherein, the first guide post 3 and the second guide post 4 are on the same vertical axis, and the outer diameter of the first guide post 3 is larger than the outer diameter of the second guide post 4.

[0034] Furthermore, the support bracket is an L-shaped support bracket, including a horizontal bracket 10 and a vertical bracket 9; the horizontal bracket 10 is provided with a guide hole adapted to the guide fixing column, and also with a hole movably connected to the shock-absorbing support column 5; the inner diameter of the guide hole is larger than the outer diameter of the first guide column 3 and smaller than the outer diameter of the second guide column 4.

[0035] Furthermore, the shock-absorbing support column 5 includes a support column 5 and a first spring 6 and a second spring 7 sleeved on the outside of the support column 5; the first spring 6 is sleeved on the outside of the support column 5 located on the upper surface of the mounting block 1 and the lower surface of the transverse bracket 10; the second spring 7 is sleeved on the outside of the support column 5 located on the upper surface of the transverse bracket 10, and the side of the second spring 7 away from the first spring 6 is fixed by a nut 8 movably connected to the support column 5. Several shock-absorbing support columns 5 are provided, and the original length of the first spring 6 is less than the length of the fixed guide column but greater than the length of the first guide column 3.

[0036] Furthermore, the mounting groove 2 has a profile adapted to the surface-mount temperature element;

[0037] Furthermore, the mounting block 1 is a 316 stainless steel mounting block; the first spring 6 is a high-strength compression spring; the second spring 7 is a high-strength compression spring; and the support bracket is a 316 stainless steel support bracket.

[0038] In use, the patch temperature element is embedded in the mounting groove 2, and the pipe is attached to the patch temperature element. The pipe is then secured to the telescopic mounting bracket by using an external clamp (the external clamp is secured along the length of the patch temperature element and is allowed to be embedded in the U-shaped groove formed by the vertical bracket 9 and the shock-absorbing support column 5), thus fixing the pipe relative to the telescopic mounting bracket.

[0039] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the interpretation of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants, characterized in that, It includes a mounting block (1), a fixed guide column located in the middle of the mounting block (1), a shock-absorbing support column (5) located around the fixed guide shaft, and a support bracket sleeved on the fixed guide column and movably connected to the shock-absorbing support column (5); The mounting block (1) has a mounting groove (2) adapted to the surface-mount temperature element on the side away from the support bracket; When in use, the patch temperature element is embedded in the mounting groove (2), the pipe is attached to the patch temperature element, and the pipe is clamped to the telescopic mounting bracket by external clamps to fix the pipe relative to the telescopic mounting bracket.

2. The telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 1, characterized in that, The mounting block (1) is fixedly connected to the fixed guide post.

3. The telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 2, characterized in that, The fixed guide post includes a first guide post (3) connected to the mounting block (1) and a second guide post (4) disposed on the side of the first guide post (3) away from the fixed guide post.

4. The telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 3, characterized in that, The first guide post (3) and the second guide post (4) are on the same vertical axis.

5. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 3, characterized in that, The outer diameter of the first guide post (3) is greater than the outer diameter of the second guide post (4).

6. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 3, characterized in that, The support bracket is an L-shaped support bracket, including a horizontal bracket (10) and a vertical bracket (9); The transverse support (10) is provided with a guide hole adapted to the guide fixing column, and also with a hole for movable connection with the shock-absorbing support column (5).

7. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 6, characterized in that, The inner diameter of the guide hole is greater than the outer diameter of the first guide post (3) and less than the outer diameter of the second guide post (4).

8. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 7, characterized in that, The shock-absorbing support column (5) includes a support column (5) and a first spring (6) and a second spring (7) sleeved on the outside of the support column (5); A first spring (6) is sleeved on the outside of the support column (5) located on the upper surface of the mounting block (1) and the lower surface of the transverse bracket (10); A second spring (7) is sleeved on the outside of the support column (5) located on the upper surface of the transverse bracket (10). The side of the second spring (7) away from the first spring (6) is fixed by a nut (8) that is movably connected to the support column (5).

9. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 8, characterized in that, Several shock-absorbing support columns (5) are provided.

10. A telescopic mounting bracket for surface-mount temperature elements in nuclear power plants according to claim 9, characterized in that, The original length of the first spring (6) is less than the length of the fixed guide post, but greater than the length of the first guide post (3).

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