Seal ring installation tool

Abstract

This application relates to a sealing ring installation tool. The sealing ring installation tool includes an installation body with a through hole along a first direction; the outer surface of the installation body has at least one groove surrounding the through hole. The installation body has at least two splitting slits extending along the first direction, capable of dividing the installation body into at least two parts. By providing the groove on the outer surface of the installation body, a sealing ring can be fitted onto the installation body and locked into the groove for positioning. By providing the through hole, the installation body can be fitted onto an instrument tube, allowing it to move along the instrument tube towards the thermocouple column, thus conveying the sealing ring to the vicinity of a first or second mounting groove. The installation body is then split along the splitting slits to remove it from the instrument tube or thermocouple column, leaving the sealing ring on the thermocouple column, and then the sealing ring is installed into the corresponding first or second mounting groove.

Description

Technical Field

[0001] This application relates to the field of nuclear reactor-specific tools, and in particular to sealing ring installation tools. Background Technology

[0002] The thermocouple column protective sleeve assembly on the reactor pressure vessel top cover of a nuclear power plant is mainly used to protect thermocouple instrument tubes and connectors in the presence of borosilicate water in the reactor pool and component pool after the reactor pressure vessel top cover has been removed, preventing damage to the instrument tubes and sealing failure of the connectors. Before installing the protective sleeve assembly, two sealing rings must be installed on each thermocouple column to protect the sealing surface of the thermocouple column and achieve a reliable seal between the thermocouple column and the protective sleeve assembly.

[0003] However, in the actual process of installing the sealing ring, it is necessary to slip the sealing ring onto the top of the instrument tube on the thermocouple column and push it along the instrument tube to the installation position, which is a relatively slow process. Moreover, because the joint of the instrument tube protrudes from the outer surface of the instrument tube, it will obstruct the sealing ring, increasing the installation difficulty and posing a risk of scratching the sealing ring. Utility Model Content

[0004] Therefore, it is necessary to provide a sealing ring installation tool that can transport the sealing ring to the vicinity of the installation groove along the instrument tube on the thermocouple column, thereby improving installation efficiency and effectively avoiding scratches on the sealing ring.

[0005] This application provides a sealing ring installation tool, the sealing ring installation tool comprising:

[0006] The mounting body has a through hole along a first direction; the outer surface of the mounting body has at least one groove, and the groove surrounds the through hole.

[0007] The mounting body is provided with at least two split seams, which extend along the first direction and can split the mounting body into at least two parts.

[0008] In one embodiment, the groove is configured as an annular ring that extends in a first plane perpendicular to the first direction.

[0009] In one embodiment, the mounting body includes a plurality of mounting blocks, and the split seam is provided between adjacent mounting blocks; the plurality of mounting blocks enclose each other to form the through hole.

[0010] In one embodiment, the plurality of mounting blocks are configured with the same structure.

[0011] In one embodiment, the mounting block includes a first component and a second component connected to each other, the first component and the second component being arranged along the first direction; the outer surface of the first component protrudes from the outer surface of the second component, and the groove is disposed on the second component.

[0012] In one embodiment, the grooves are spaced in a plurality of places, and the plurality of grooves are arranged on the second component along the first direction.

[0013] In one embodiment, the width of each groove increases from the direction closer to the first component to the direction farther away from the first component.

[0014] In one embodiment, the inner diameter of the through hole is larger than the maximum diameter of the thermocouple post on which the sealing ring is to be installed.

[0015] In one embodiment, the sealing ring installation tool further includes:

[0016] A base is provided on the base, and the limiting groove is used to limit one end of the mounting body along the first direction.

[0017] In one embodiment, when the mounting body is confined to the limiting groove, all the grooves are exposed outside the limiting groove.

[0018] The aforementioned sealing ring installation tool, by providing a groove on the outer surface of the mounting body, allows the sealing ring to be fitted onto the mounting body using its elastic properties and then locked into the groove for positioning. By providing a through hole along a first direction on the mounting body, the mounting body can be fitted onto the instrument tube through the through hole, allowing the mounting body to move along the instrument tube towards the thermocouple column, thus conveying the sealing ring to the vicinity of the first or second mounting groove. The mounting body is then disassembled along the split seam to remove it from the instrument tube or thermocouple column, leaving the sealing ring on the thermocouple column. Finally, the sealing ring is installed into the corresponding first or second mounting groove. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a thermocouple column provided in one embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the sealing ring provided in one embodiment of this application;

[0021] Figure 3 This is a three-dimensional structural diagram of the mounting body provided in one embodiment of this application;

[0022] Figure 4 This is a cross-sectional view of the mounting body provided in one embodiment of this application;

[0023] Figure 5 This is a top view of the base provided in one embodiment of this application;

[0024] Figure 6 This is a cross-sectional view of the base provided in one embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Thermocouple column; 110. Instrument tube; 120. Connector; 130. First mounting slot; 140. Second mounting slot; 200. Sealing ring;

[0027] 1. Mounting body; 101. Through hole; 102. Groove; 1021. First groove; 1022. Second groove; 103. Split joint; 11. Mounting block; 111. First component; 112. Second component; 1121. Chamfer;

[0028] 2. Base; 201. Limiting groove. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough 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 modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 or an electrical 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a thermocouple column 100 provided in one embodiment of this application is shown; Figure 2A schematic diagram of the sealing ring 200 provided in one embodiment of this application is shown. A protective sleeve assembly is required on the outside of the thermocouple column 100 for protection. To improve the sealing performance between the protective sleeve assembly and the thermocouple column 100, two sealing rings, such as those shown, need to be spaced apart on the thermocouple column 100. Figure 2 The sealing ring 200 is shown. Specifically, a first mounting groove 130 and a second mounting groove 140 are provided circumferentially on the thermocouple column 100, and the two sealing rings 200 are respectively installed in the first mounting groove 130 and the second mounting groove 140. The inner diameter, outer diameter, and thickness of the two sealing rings 200 can be the same or different.

[0036] An instrument tube 110 is provided on the upper end face of the thermocouple column 100, and the two instrument tubes 110 are connected by a connector 120. The outer diameter of the connector 120 is larger than the outer diameter of the instrument tube 110. Therefore, when the sealing ring 200 is inserted into the thermocouple column 100 from the top of the instrument tube 110, the connector 120 will block the sealing ring 200.

[0037] To address the above problems, this application provides a sealing ring installation tool. Please refer to [link / reference]. Figure 3 , Figure 3 A three-dimensional structural schematic diagram of the mounting body 1 provided in one embodiment of this application is shown. Specifically, the sealing ring mounting tool includes the mounting body 1, and the mounting body 1 is positioned along a first direction (i.e., Figure 3 A through hole 101 is provided in the Z direction; at least one groove 102 is provided on the outer surface of the mounting body 1, and the groove 102 is arranged around the through hole 101. The mounting body 1 is provided with at least two split seams 103, which extend in the first direction and can split the mounting body 1 into at least two parts.

[0038] The sealing ring installation tool proposed in this application embodiment allows the sealing ring 200 to be installed to be fitted onto the mounting body 1 and locked into the groove 102 by providing a groove 102 on the outer surface of the mounting body 1. A through hole 101 along the Z direction is provided on the mounting body 1, allowing the mounting body 1 to be fitted onto the instrument tube 110. The mounting body 1 then moves along the instrument tube 110 towards the thermocouple column 100, conveying the sealing ring 200 to the vicinity of the first mounting groove 130 or the second mounting groove 140. The mounting body 1 is then disassembled along the split seam 103 to remove it from the instrument tube 110 or the thermocouple column 100, leaving the sealing ring 200 on the thermocouple column 100. The sealing ring 200 is then installed into the corresponding first mounting groove 130 or second mounting groove 140.

[0039] Specifically, the inner diameter of the through hole 101 is larger than the maximum outer diameter of the thermocouple column 100 and the connector 120 of the sealing ring 200 to be installed, so as to ensure that the mounting body 1 can slide smoothly along the instrument tube 110 and the thermocouple column 100 to the installation position of the sealing ring 200.

[0040] In some embodiments, multiple grooves 102 are spaced apart and arranged along the Z direction. By providing multiple grooves 102, multiple sealing rings 200 can be conveyed at one time, thereby improving the efficiency of sealing ring 200 installation.

[0041] Please continue reading. Figure 3 In some embodiments, the groove 102 is configured as an annular ring extending within a first plane, and the first plane is perpendicular to a first direction. This configuration facilitates the placement and removal of the sealing ring 200 within the groove 102.

[0042] Combination Figure 3 and Figure 4 As shown, Figure 4 This diagram shows a cross-sectional view of the mounting body 1 provided in one embodiment of this application. In this embodiment, two sealing rings 200 need to be installed on the thermocouple column 100. Two grooves 102 are provided at intervals, namely a first groove 1021 and a second groove 1022. The sealing ring 200 in the second groove 1022 is installed in the first mounting groove 130, and the sealing ring 200 in the first groove 1021 is installed in the second mounting groove 140. The width of the first groove 1021 and the second groove 1022 is specifically determined according to the size of the sealing ring 200 to be limited, so that a portion of the sealing ring 200 is limited within the groove 102.

[0043] In some embodiments, please refer to Figure 3 and Figure 4 The mounting body 1 includes multiple mounting blocks 11, with a split seam 103 between adjacent mounting blocks 11, and the multiple mounting blocks 11 enclose a through hole 101. Specifically, the mounting body 1 is configured as a cylindrical collar, and each mounting block 11 is configured as an arc-shaped structure, and the mounting body 1 is formed by assembling multiple mounting blocks 11.

[0044] In this embodiment, multiple mounting blocks 11 are configured with the same structure, which can be used interchangeably and are relatively easy to process. During assembly, there is no need to distinguish the installation position of each mounting block 11, resulting in high assembly efficiency.

[0045] In this embodiment of the application, the mounting body 1 includes two mounting blocks 11, each of which is a semi-circular structure. The assembled mounting body 1 has good structural strength and is also relatively quick to assemble.

[0046] Of course, when the diameter of the through hole 101 is relatively large, the size of the mounting body 1 will also be relatively large, and setting only two mounting blocks 11 may be too large and inconvenient to operate. In this case, the mounting body 1 can be set to include three or more mounting blocks 11. In order to ensure structural strength, a connection structure such as a snap-fit ​​or pin connection can be set between two adjacent mounting blocks 11 to prevent the mounting blocks 11 from falling apart.

[0047] Please continue reading. Figure 3 and Figure 4 In some embodiments, the mounting block 11 includes a first component 111 and a second component 112 connected to each other, arranged along the Z-direction. The outer surface of the first component 111 protrudes beyond the outer surface of the second component 112, and a groove 102 is disposed on the second component 112, with multiple grooves 102 arranged along the Z-direction on the second component 112. By providing a first component 111 with a larger diameter, the mounting body 1 can have a larger thickness, thereby improving the structural strength of the mounting body 1. At the same time, the larger diameter of the first component 111 also makes it easier for personnel to grip and operate.

[0048] When the mounting body 1 delivers the sealing ring 200 to the thermocouple column 100, the second component 112 faces the thermocouple column 100 and is fitted onto the thermocouple column 100. Since the thickness of the sealing ring 200 in the first mounting groove 130 along the Z direction is greater than the thickness of the sealing ring 200 in the second mounting groove 140 along the Z direction, the width of each groove 102 is arranged to increase from the direction closer to the first component 111 to the direction farther away from the first component 111, so as to facilitate the delivery of the larger sealing ring 200 to the first mounting groove 130 and the smaller sealing ring 200 to the second mounting groove 140.

[0049] In some embodiments, the through hole 101 is provided with a chamfer 1121 at the opening of the first component 111. By providing the chamfer 1121, the diameter of the through hole 101 is increased, so as to make it easier to put the mounting body 1 onto the thermocouple column 100.

[0050] Please refer to the following: Figure 5 and Figure 6 , Figure 5 A top view of the base 2 provided in one embodiment of this application is shown; Figure 6 A cross-sectional view of the base 2 provided in one embodiment of this application is shown.

[0051] To facilitate the fitting of the sealing ring 200 onto the mounting body 1, this embodiment also provides a base 2. The base 2 has a limiting groove 201, which limits one end of the mounting body 1 along the Z-direction. When fitting the sealing ring 200, the mounting body 1 is pre-positioned within the limiting groove 201 to prevent the mounting blocks 11 of the mounting body 1 from falling out, thus facilitating the installation of the sealing ring 200. Simultaneously, the mounting body 1 can also be placed on the base 2 for storage and transport.

[0052] Optionally, the base 2 is provided with multiple limiting grooves 201 at intervals so as to limit multiple mounting bodies 1 at the same time.

[0053] Specifically, when the mounting body 1 is positioned within the limiting groove 201, all grooves 102 are exposed outside the limiting groove 201 to prevent the base 2 from obstructing the grooves 102 and affecting the fitting of the sealing ring 200.

[0054] Optionally, the first component 111 is inserted into the limiting groove 201 for limiting, so that the groove 102 on the second component 112 is more easily exposed.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A seal ring installation tool characterized by, The sealing ring installation tool includes: Mounting body (1), the mounting body (1) is provided with a through hole (101) along a first direction; the outer surface of the mounting body (1) is provided with at least one groove (102), and the groove (102) is provided around the through hole (101); The mounting body (1) is provided with at least two split seams (103), which extend along the first direction and can split the mounting body (1) into at least two parts.

2. The seal ring installation tool of claim 1, wherein, The groove (102) is configured as an annular ring, which extends in a first plane and the first plane is perpendicular to the first direction.

3. The seal ring installation tool of claim 1, wherein, The mounting body (1) includes multiple mounting blocks (11), and the split seam (103) is provided between adjacent mounting blocks (11); the multiple mounting blocks (11) enclose to form the through hole (101).

4. The seal ring installation tool of claim 3, wherein, Multiple mounting blocks (11) are configured with the same structure.

5. The seal ring installation tool of claim 3, wherein, The mounting block (11) includes a first component (111) and a second component (112) connected to each other, the first component (111) and the second component (112) being arranged along the first direction; the outer surface of the first component (111) protrudes from the outer surface of the second component (112), and the groove (102) is disposed on the second component (112).

6. The seal ring installation tool of claim 5, wherein, The grooves (102) are spaced out in multiples, and the multiple grooves (102) are arranged on the second component (112) along the first direction.

7. The seal ring installation tool of claim 6, wherein, The width of each groove (102) increases from the direction closer to the first component (111) to the direction farther away from the first component (111).

8. The seal ring installation tool of any one of claims 1 to 7, wherein, The inner diameter of the through hole (101) is greater than the maximum diameter of the thermocouple column (100) of the sealing ring (200) to be installed.

9. The seal ring installation tool of any one of claims 1 to 7, wherein, The sealing ring installation tool also includes: The base (2) is provided with a limiting groove (201) for limiting one end of the mounting body (1) along the first direction.

10. The seal ring installation tool of claim 9, wherein, When the mounting body (1) is located in the limiting groove (201), all the grooves (102) are exposed outside the limiting groove (201).

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