Static sealing assembly for petrochemical engineering pipeline flange

Abstract

The utility model discloses a petrochemical engineering pipeline flange static sealing assembly, which relates to the technical field of pipeline flange sealing, and comprises a connecting pipe, a male head assembly, a female head assembly and a flange plate, the male head assembly is in threaded connection with the outer part of the connecting pipe, and the male head assembly comprises a retainer and a connecting bolt; and the connecting bolt is fixedly installed in the retainer, the female head assembly is arranged outside the connecting pipe and comprises meshing teeth and a meshing gear ring, and the meshing gear ring is connected to the outer portions of the meshing teeth in a meshing mode. The male head body drives the holder and the connecting bolt to move forwards, the holder is rotated to enable the connecting bolt to be concentric with a hole in the flange plate, the connecting bolt penetrates through the connecting hole, then the meshing gear ring is rotated, and the meshing teeth drive the threaded connecting rings in the female head body to rotate at the same time to be connected with the connecting bolt. The fastening force of the connecting bolts is the same, and the phenomenon that the annular gasket is uneven in stress is prevented.

Description

Technical Field

[0001] This utility model relates to the field of pipeline flange sealing technology, specifically to a static sealing component for petrochemical pipeline flanges. Background Technology

[0002] Currently, flange assemblies are a common method for sealing pipelines used to transport fluid media. Generally, a pair of flanges are placed opposite each other, with an annular gasket between them. Finally, the flanges and gasket are manually tightened together using bolts to seal the pipeline. The failure of flange connections is mainly manifested as leakage. Since most of the materials and media in oil refineries are flammable, explosive, highly toxic, or corrosive, major fires or personal injury accidents caused by flange leaks occur frequently. Therefore, the sealing of flanges must be taken seriously.

[0003] When connecting flanges, the flanges have several bolt holes. When the bolts are tightened manually, the tightening force is uneven, which can easily cause uneven stress on the annular gaskets. This can lead to localized damage to the gaskets, resulting in seal failure, leakage of liquid in the pipeline, and safety accidents. Furthermore, workers need to install multiple bolts when connecting flanges, which is time-consuming and inefficient.

[0004] To address this problem, this application provides a static sealing assembly for petrochemical pipeline flanges. Utility Model Content

[0005] The purpose of this utility model is to provide a static sealing component for petrochemical pipeline flanges to solve the problems mentioned in the background art, such as the inconsistent tightening force of the connecting bolts when manually tightening the pipeline flange seals, the need to install multiple connecting bolts when connecting the flange, the easy occurrence of local damage to the gasket leading to seal failure, safety accidents, time-consuming operation, low efficiency, and poor performance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A static sealing assembly for a petrochemical pipeline flange includes a connecting pipe, a male connector assembly, a female connector assembly, and a flange. The male connector assembly is threaded to the outside of the connecting pipe and includes a retainer and a connecting bolt. The connecting bolt is fixedly installed inside the retainer. The female connector assembly is disposed outside the connecting pipe and includes meshing teeth and a meshing toothed ring. The meshing toothed ring is meshed to the outside of the meshing teeth. The flange is fixedly installed at one end of the connecting pipe.

[0008] Furthermore, the connecting pipe is externally threaded with a male connector body, and the male connector body has a sliding groove inside, with the retainer rotatably mounted inside the sliding groove.

[0009] Furthermore, the male head body has an internal mounting hole, a first slot on the outside, and a first clamping block fixedly connected to one side of the male head body.

[0010] Furthermore, a retaining ring is provided at one end of the connecting bolt, and a first bearing is fixedly installed inside the meshing gear ring.

[0011] Furthermore, a female head body is fixedly installed inside the first bearing, and the female head body is slidably installed outside the connecting pipe.

[0012] Furthermore, a connecting hole is provided on one side of the female head body, a second slot is provided on the outside of the meshing gear ring, and a second clamping block is fixedly connected to the female head body on the same side as the connecting hole.

[0013] Furthermore, a threaded connecting ring is fixedly connected inside the meshing teeth, and a second bearing is fixedly installed at both ends of the threaded connecting ring. The second bearing is fixedly installed inside the female head body.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a static sealing assembly for a petrochemical pipeline flange. Through the combined action of the retainer, the meshing toothed ring, and the meshing teeth, the male head body drives the retainer and connecting bolts to move forward. By rotating the retainer, the connecting bolts are made concentric with the holes on the flange and pass through the connecting holes. Then, the meshing toothed ring is rotated through the second slot, and the meshing teeth drive multiple threaded connecting rings inside the female head body to rotate simultaneously and connect with the connecting bolts. This ensures that the tightening force of each connecting bolt is the same and prevents uneven force on the annular gasket.

[0016] 2. This utility model provides a static sealing assembly for a petrochemical pipeline flange. Through the combined action of the retainer, the meshing toothed ring, and the meshing teeth, rotating the retainer allows multiple connecting bolts to rotate simultaneously and become concentric with the holes on the flange. The meshing toothed ring and the meshing teeth allow multiple threaded connecting rings to connect with the connecting bolts simultaneously, eliminating the need to connect each connecting bolt individually, saving operation time and improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the static sealing assembly for a petrochemical pipeline flange according to this utility model.

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

[0019] Figure 3 This is a schematic diagram of the male connector assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the female connector assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of this utility model.

[0022] In the diagram: 1. Connecting pipe; 2. Male connector assembly; 3. Female connector assembly; 4. Flange; 20. Male connector body; 21. First slot; 22. Connecting bolt; 23. Retaining ring; 24. Cage; 25. First clamping block; 26. Sliding groove; 27. Mounting hole; 30. Female connector body; 31. Second clamping block; 32. Connecting hole; 33. Second slot; 34. First bearing; 35. Threaded connecting ring; 36. Engaging teeth; 37. Engaging gear ring; 38. Second bearing. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to embodiments:

[0024] like Figure 1-5 As shown, this utility model provides a static sealing assembly for a petrochemical pipeline flange, including a connecting pipe 1, a male connector assembly 2, a female connector assembly 3, and a flange 4. The male connector assembly 2 is threaded to the outside of the connecting pipe 1, the female connector assembly 3 is disposed on the outside of the connecting pipe 1, and the flange 4 is fixedly installed at one end of the connecting pipe 1.

[0025] like Figure 2 , Figure 3 and Figure 5 As shown, the male connector assembly 2 includes a retainer 24 and a connecting bolt 22. The connecting bolt 22 is fixedly installed inside the retainer 24. The external thread of the connecting pipe 1 is connected to the male connector body 20. The internal part of the male connector body 20 has a sliding groove 26. The retainer 24 is rotatably installed inside the sliding groove 26. The internal part of the male connector body 20 has a mounting hole 27. The external part of the male connector body 20 has a first slot 21. A first clamping block 25 is fixedly connected to one side of the male connector body 20. A retaining ring 23 is provided at one end of the connecting bolt 22. By rotating the male connector body 20 through the first slot 21, the male connector body 20 moves the retainer 24 and the connecting bolt 22 forward. By rotating the retainer 24, the connecting bolt 22 is made concentric with the hole on the flange 4, and the connecting bolt 22 passes through the connecting hole 32 on the female connector body 30, so that the first clamping block 25 contacts the back of the connecting flange 4 and applies pressure.

[0026] like Figure 2, Figure 4 and Figure 5 As shown, the female connector assembly 3 includes meshing teeth 36 and a meshing gear ring 37. The meshing gear ring 37 is meshed and connected to the outside of the meshing teeth 36. A first bearing 34 is fixedly installed inside the meshing gear ring 37. A female connector body 30 is fixedly installed inside the first bearing 34. The female connector body 30 is slidably installed outside the connecting pipe 1. A connecting hole 32 is opened on one side of the female connector body 30. A second slot 33 is opened on the outside of the meshing gear ring 37. A second clamping block 31 is fixedly connected to the female connector body 30 on the same side as the connecting hole 32. A threaded connecting ring 35 is fixedly connected inside the meshing teeth 36. A second bearing 38 is fixedly installed at both ends of the threaded connecting ring 35. The second bearing 38 is fixedly installed inside the female connector body 30. When the connecting... After the connecting bolt 22 passes through the connecting hole 32, the meshing gear ring 37 rotates through the second slot 33 on the female head body 30. The meshing teeth 36 drive the multiple threaded connecting rings 35 inside the female head body 30 to rotate around its axis simultaneously, connecting with the connecting bolt 22. This causes the second clamping block 31 to contact the back of the connecting flange 4 and apply pressure, ensuring that the tightening force of each connecting bolt 22 is the same, preventing uneven force on the annular gasket. The meshing gear ring 37 and meshing teeth 36 enable multiple threaded connecting rings 35 to connect with the connecting bolt 22 simultaneously. Under the combined action of the meshing gear ring 37 and meshing teeth 36, there is no need to connect each connecting bolt 22 individually, saving operation time and improving work efficiency.

[0027] The working principle of this petrochemical pipeline flange static sealing assembly will be explained in detail below.

[0028] like Figure 1-5As shown, when using this petrochemical pipeline flange static sealing assembly, the male head body 20 is rotated by the first slot 21 on the male head body 20, causing the male head body 20 to move the retainer 24 and the connecting bolt 22 forward. By rotating the retainer 24, the connecting bolt 22 is made concentric with the hole on the flange 4, and the connecting bolt 22 passes through the connecting hole 32 on the female head body 30. After the connecting bolt 22 passes through the connecting hole 32, the meshing gear ring 37 is rotated by the second slot 33 on the female head body 30. The meshing teeth 36 drive the multiple threaded connecting rings 35 inside the female head body 30 to rotate simultaneously around its axis, and threadedly connect with the connecting bolt 22, so that the first clamping block 2... 5. The second clamping block 31 contacts the back of the flange 4 and applies pressure to make the tightening force of each connecting bolt 22 the same. Under the joint action of the retainer 24, the meshing tooth ring 37 and the meshing teeth 36, the uneven force on the annular gasket is prevented. By rotating the retainer 24, multiple connecting bolts 22 can be rotated at the same time and concentric with the holes on the flange 4. Through the meshing tooth ring 37 and the meshing teeth 36, multiple threaded connecting rings 35 can be connected to the connecting bolts 22 at the same time. Under the joint action of the retainer 24, the meshing tooth ring 37 and the meshing teeth 36, it is not necessary to connect each connecting bolt 22 individually, saving operation time and improving work efficiency.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A static sealing assembly for a petrochemical pipeline flange, comprising a connecting pipe (1), a male connector assembly (2), a female connector assembly (3), and a flange (4), characterized in that: The male connector assembly (2) is threaded to the outside of the connecting pipe (1). The male connector assembly (2) includes a retainer (24) and a connecting bolt (22). The connecting bolt (22) is fixedly installed inside the retainer (24). The female connector assembly (3) is located outside the connecting pipe (1). The female connector assembly (3) includes meshing teeth (36) and meshing gear ring (37). The meshing gear ring (37) is meshed to the outside of the meshing teeth (36). The flange (4) is fixedly installed at one end of the connecting pipe (1).

2. The static sealing assembly for a petrochemical pipeline flange according to claim 1, characterized in that: The external thread of the connecting pipe (1) is connected to a male head body (20), and the male head body (20) has a sliding groove (26) inside. The retainer (24) is rotatably installed inside the sliding groove (26).

3. A static sealing assembly for a petrochemical pipeline flange according to claim 2, characterized in that: The male head body (20) has an installation hole (27) inside, a first slot (21) is provided on the outside of the male head body (20), and a first clamping block (25) is fixedly connected to one side of the male head body (20).

4. A static sealing assembly for a petrochemical pipeline flange according to claim 1, characterized in that: A retaining ring (23) is provided at one end of the connecting bolt (22), and a first bearing (34) is fixedly installed inside the meshing gear ring (37).

5. A static sealing assembly for a petrochemical pipeline flange according to claim 4, characterized in that: The first bearing (34) has a female head body (30) fixedly installed inside, and the female head body (30) is slidably installed outside the connecting pipe (1).

6. A static sealing assembly for a petrochemical pipeline flange according to claim 5, characterized in that: A connecting hole (32) is provided on one side of the female head body (30), and a second slot (33) is provided on the outside of the meshing gear ring (37). A second clamping block (31) is fixedly connected to the female head body (30) on the same side as the connecting hole (32).

7. A static sealing assembly for a petrochemical pipeline flange according to claim 1, characterized in that: The meshing teeth (36) are fixedly connected to a threaded connecting ring (35), and a second bearing (38) is fixedly installed at both ends of the threaded connecting ring (35). The second bearing (38) is fixedly installed inside the female head body (30).

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