Outer conductor tee joint for nuclear power station

Abstract

The utility model discloses an outer conductor tee joint for a nuclear power station, which relates to the technical field of three-way pipes, solves the problems of low sealing performance and poor mounting effect of the existing device, and adopts the following scheme that three openings of the three-way pipe are respectively provided with a flange plate A, and the top surface of each flange plate A is fixedly provided with a sealing neck matched with the flange plate A in specification; according to the outer conductor tee joint for the nuclear power station, through the arrangement of the sealing neck and the sealing gasket, the sealing neck is arranged on the flange plate A, and the sealing gasket is assembled on the sealing neck, so that the flange plate A and the flange plate B are annularly connected, the sealing performance is high, the tee joint can be used at high temperature and high pressure, and the practicability and the using effect of the device are improved; and meanwhile, through arrangement of a positioning block and a through hole, the sealing neck is located in the mounting groove, and the positioning block is located in the positioning hole, so that positioning between the through hole A and the through hole B can be facilitated, the deviation phenomenon is prevented, then the flange plate A and the flange plate B are connected through a locking bolt, and the mounting effect is good.

Description

Technical Field

[0001] This utility model relates to the field of tee pipe technology, specifically an external conductor tee for nuclear power plants. Background Technology

[0002] A pipe fitting with three openings is called a tee. Tee fittings are widely used in pipeline networks for transporting liquids and gases. Depending on the medium being transported, tee fittings are made of materials such as cast iron, cast steel, cast copper, cast aluminum, plastic, and glass. As the name suggests, a tee fitting has three openings.

[0003] A search revealed that patent application CN208221859U discloses a novel external thread tee fitting, comprising a T-shaped pipe body. The pipe body includes a straight pipe and a side pipe, which are connected. The end of the side pipe is formed with a connector pipe that communicates with it. The connector pipe has external threads. The bottom end of the side pipe extends to the inner wall of the straight pipe and is integrally formed therewith. The lower end of the side pipe also has a through hole that communicates with the straight pipe, which facilitates installation and disassembly.

[0004] However, due to the design of the connector pipe, the connector pipe is connected to other pipes by threads. Threaded connections have low sealing performance, are prone to deformation at high temperatures, and have poor performance. At the same time, when using threaded connections, stripping is likely to occur during rotation installation, resulting in low installation stability, poor sealing, and poor installation effect.

[0005] Therefore, we propose an external conductor tee for nuclear power plants. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an external conductor tee for nuclear power plants, which solves the problems of low sealing performance and poor installation effect of existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an external conductor tee for nuclear power plants, comprising a tee pipe with three openings;

[0008] The three openings of the tee pipe are respectively equipped with flanges A. A fixed sleeve A of the same specification is fixedly installed on the bottom surface of flange A. A sealing neck of the same specification is fixedly installed on the top surface of flange A. An annular sealing groove is opened on the top surface of the sealing neck. A sealing gasket of the same specification as the sealing neck is installed on the top surface of flange A. A flexible gasket of the same specification as the sealing groove is fixedly installed on the bottom surface of the sealing gasket.

[0009] A flange B of the same specifications is mounted on top of flange A. A mounting groove of the same specifications is opened on the bottom surface of flange B. Two sets of positioning blocks with opposite positions are fixedly installed on the top surface of flange A. Six sets of through holes A with opposite positions are opened on the top surface of flange A. Two sets of positioning holes with opposite positions are opened on the bottom surface of flange B. Six sets of through holes B with the same specifications are opened on the bottom surface of flange B.

[0010] Preferably, the tee pipe is manufactured as a single piece, which can improve the overall strength and stability of the tee pipe.

[0011] Preferably, the tee is made of aluminum and has a wall thickness of 7mm, which improves the corrosion resistance and high temperature resistance of the tee.

[0012] Preferably, the sealing gasket is made of metal material and the flexible gasket is made of flexible graphite gasket material. This combination of two materials improves the gasket's high-temperature resistance and sealing performance.

[0013] Preferably, a fixing sleeve B of the same specification is fixedly installed on the top surface of the flange B, which facilitates the installation of the flange B.

[0014] Preferably, the bottom surface of flange A is fixedly equipped with uniformly distributed reinforcing blocks A, and the top surface of flange B is fixedly equipped with uniformly distributed reinforcing blocks B, which can improve the strength of flange A and flange B.

[0015] 1. This type of external conductor tee for nuclear power plants, through the setting of a sealing neck and a sealing gasket, has a sealing neck on flange A and a sealing gasket installed on the sealing neck. In this way, flange A and flange B adopt a ring connection, which has high sealing performance and can be used under high temperature and high pressure, thereby improving the practicality and performance of the device.

[0016] 2. Simultaneously, by setting up positioning blocks and through holes, the sealing neck is located in the mounting groove, and the positioning block is located in the positioning hole. This facilitates the positioning between through hole A and through hole B and prevents offset. Then, flange A and flange B are connected by locking bolts. The installation is simple and convenient, and the installation effect is good. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of flange A of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the gasket of this utility model;

[0020] Figure 4 This is a structural schematic diagram of flange B of this utility model.

[0021] In the diagram: 1. Tee; 2. Flange A; 3. Fixing sleeve A; 4. Sealing neck; 5. Sealing groove; 6. Positioning block; 7. Through hole A; 8. Reinforcing block A; 9. Sealing gasket; 10. Flexible gasket; 11. Fixing sleeve B; 12. Flange B; 13. Mounting groove; 14. Positioning hole; 15. Through hole B; 16. Reinforcing block B. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] like Figure 1-4 As shown: The three openings of the tee pipe 1 are respectively equipped with flanges A2. A fixed sleeve A3 of the same specification is fixedly installed on the bottom surface of flange A2. A sealing neck 4 of the same specification is fixedly installed on the top surface of flange A2. An annular sealing groove 5 is opened on the top surface of sealing neck 4. A sealing gasket 9 of the same specification as sealing neck 4 is installed on the top surface of flange A2. A flexible gasket 10 of the same specification as sealing groove 5 is fixedly installed on the bottom surface of sealing gasket 9. Through the setting of sealing neck 4 and sealing gasket 9, flange A2 is provided with sealing neck 4, and sealing gasket 9 is installed on sealing neck 4. In this way, flange A2 and flange B12 adopt an annular connection, which has high sealing performance and can be used under high temperature and high pressure, improving the practicality and performance of the device.

[0025] Example 2:

[0026] like Figure 2-4 As shown: Flange A2 is fitted with a matching flange B12 on top. Flange B12 has a matching mounting groove 13 on its bottom surface. Two sets of opposing positioning blocks 6 are fixedly installed on the top surface of flange A2. Six sets of opposing through holes A7 are also present on the top surface of flange A2. Two sets of opposing positioning holes 14 and six sets of matching through holes B15 are present on the bottom surface of flange B12. Through the positioning blocks 6 and through holes, the sealing neck 4 is located within the mounting groove 13, and the positioning blocks 6 are located within the positioning holes 14. This facilitates the positioning between through holes A7 and B15, preventing misalignment. Flange A2 and flange B12 are then connected using locking bolts. The installation is simple, convenient, and effective.

[0027] Example 3:

[0028] like Figure 2-3 As shown: the sealing gasket 9 is made of metal material, and the flexible gasket 10 is made of flexible graphite gasket material. This combination of two materials improves the gasket's high temperature resistance and sealing performance.

[0029] The working principle and usage process of this utility model are as follows: When the device needs to work, a sealing neck 4 is provided on the flange A2, and a sealing gasket 9 is installed on the sealing neck 4. In this way, flange A2 and flange B12 are connected in a ring, which has high sealing performance and can be used under high temperature and high pressure, improving the practicality and performance of the device. The sealing neck 4 is located in the mounting groove 13, and the positioning block 6 is located in the positioning hole 14. This facilitates the positioning between the through hole A7 and the through hole B15 and prevents displacement. Then, flange A2 and flange B12 are connected by locking bolts. The installation is simple and convenient, and the installation effect is good.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nuclear power plant external conductor tee, comprising a tee pipe (1) having three openings; Its features are: The three openings of the tee pipe (1) are respectively equipped with flanges A (2). The bottom surface of the flange A (2) is fixedly installed with a matching fixing sleeve A (3). The top surface of the flange A (2) is fixedly installed with a matching sealing neck (4). The top surface of the sealing neck (4) is provided with an annular sealing groove (5). The top surface of the flange A (2) is equipped with a sealing gasket (9) that matches the specifications of the sealing neck (4). The bottom surface of the sealing gasket (9) is fixedly installed with a flexible gasket (10) that matches the specifications of the sealing groove (5). A flange B (12) of the same specification is mounted on the top of the flange A (2). The bottom surface of the flange B (12) is provided with a mounting groove (13) of the same specification. Two sets of positioning blocks (6) with opposite positions are fixedly installed on the top surface of the flange A (2). Six sets of through holes A (7) with opposite positions are provided on the top surface of the flange A (2). Two sets of positioning holes (14) with opposite positions are provided on the bottom surface of the flange B (12). Six sets of through holes B (15) with the same specification are provided on the bottom surface of the flange B (12).

2. The external conductor tee for a nuclear power plant according to claim 1, characterized in that: The tee pipe (1) is manufactured as a single piece.

3. A nuclear power plant external conductor tee according to claim 1, characterized in that: The tee pipe (1) is made of aluminum material and has a wall thickness of 7 mm.

4. A nuclear power plant external conductor tee according to claim 1, characterized in that: The sealing gasket (9) is made of metal material, and the flexible gasket (10) is made of flexible graphite gasket material.

5. A nuclear power plant external conductor tee according to claim 1, characterized in that: A matching fixing sleeve B(11) is fixedly installed on the top surface of the flange B(12).

6. A nuclear power plant external conductor tee according to claim 1, characterized in that: The bottom surface of the flange A (2) is fixedly equipped with uniformly distributed reinforcing blocks A (8), and the top surface of the flange B (12) is fixedly equipped with uniformly distributed reinforcing blocks B (16).

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