Vacuum-proof fluorine-coated corrosion-proof ball valve

Abstract

The utility model provides a kind of anti-vacuum fluorine-lined anticorrosion ball valve.The anti-vacuum fluorine-lined anticorrosion ball valve includes: fluorine-lined anticorrosion ball valve main body and two pipeline connecting mechanisms, the fluorine-lined anticorrosion ball valve main body is equipped with connecting pipeline one and connecting pipeline two, and the two pipeline connecting mechanisms are respectively connected and fixed with the connecting pipeline one and the connecting pipeline two on the fluorine-lined anticorrosion ball valve main body;The pipeline connecting mechanism includes installation pipeline, connecting ring, sealing ring, mounting sleeve ring one, mounting sleeve ring two and fixed assembly, the installation pipeline is arranged in one side of connecting pipeline two, and the end wall of connecting pipeline two close to installation pipeline is provided with sealing groove one.The anti-vacuum fluorine-lined anticorrosion ball valve provided by the utility model can effectively resist external pressure in vacuum environment through double sealing interface and the radial and circumferential limiting of fixed assembly to connecting ring, can avoid sealing ring deformation or displacement, so as to ensure the sealing performance of pipeline, avoid affecting its use.

Description

Technical Field

[0001] This utility model belongs to the field of ball valve technology, and in particular relates to a vacuum-resistant fluoropolymer-lined anti-corrosion ball valve. Background Technology

[0002] The PTFE-lined ball valve uses a ball with a circular through-hole as the opening and closing element. The ball rotates around the valve body centerline with the valve stem to open and close the valve. A special molding process is used to make the sealing surface dense and good. In addition, the combination of V-type PTFE packing makes the valve achieve zero leakage. The ball and valve stem are cast as one piece, eliminating the possibility of the valve stem being pushed out of the pressure bearing component due to pressure changes, thus fundamentally ensuring safety during use. The all-plastic lining process is resistant to strong corrosion of the media.

[0003] However, existing fluoropolymer-lined corrosion-resistant ball valves often suffer from insufficient sealing of the pipeline connection mechanism under vacuum or negative pressure conditions, leading to the infiltration of outside air and affecting the purity of the transported medium and the stability of the system. Traditional ball valves often use a single sealing ring or flange connection, which is prone to problems such as sealing ring deformation and loosening under negative pressure, resulting in vacuum failure. Therefore, it is necessary to provide a new vacuum-resistant fluoropolymer-lined corrosion-resistant ball valve to solve the above technical problems. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a vacuum-proof fluoropolymer-lined anti-corrosion ball valve that effectively resists external pressure in a vacuum environment by limiting the radial and circumferential movement of the connecting ring through a double sealing interface and fixing components, thereby preventing deformation or displacement of the sealing ring and ensuring the sealing performance of the pipeline and avoiding affecting its use.

[0005] To solve the above-mentioned technical problems, the vacuum-proof fluoropolymer-lined anti-corrosion ball valve provided by this utility model includes: a fluoropolymer-lined anti-corrosion ball valve body and two pipe connection mechanisms. The fluoropolymer-lined anti-corrosion ball valve body is provided with a first connection pipe and a second connection pipe. The two pipe connection mechanisms are respectively connected and fixed to the first connection pipe and the second connection pipe on the fluoropolymer-lined anti-corrosion ball valve body.

[0006] The pipe connection mechanism includes an installation pipe, a connecting ring, a sealing ring, a first mounting ring, a second mounting ring, and a fixing component. The installation pipe is disposed on one side of the second connecting pipe. A first sealing groove is formed on the inner wall of the end of the second connecting pipe near the installation pipe, and a second sealing groove is formed on the inner wall of the end of the installation pipe near the second connecting pipe. The connecting ring is disposed between the second connecting pipe and the installation pipe and is in contact with both the second connecting pipe and the installation pipe. The sealing ring is installed on the inner wall of the connecting ring, and both ends of the sealing ring extend into the first sealing groove and the second sealing groove, respectively, and are adapted to the first sealing groove and the second sealing groove.

[0007] As a further embodiment of this utility model, the first mounting collar is fixedly sleeved on the outer wall of the second connecting pipe near the installation pipe, and the outer wall of the first mounting collar is provided with a limiting groove, and the first mounting collar is in contact with the connecting ring.

[0008] As a further embodiment of this utility model, the second mounting collar is fixedly sleeved on the outer wall of the end of the installation pipe near the second connecting pipe, and the outer wall of the second mounting collar is provided with a limiting groove, and the second mounting collar is in contact with the connecting ring.

[0009] As a further embodiment of this utility model, the fixing component includes two arc-shaped blocks, two sets of limiting inserts, two fixing blocks one, two fixing blocks two, and two fastening bolts. The two arc-shaped blocks are symmetrically arranged to form a fixing collar, and the two sets of limiting inserts are symmetrically installed on the inner walls of the two arc-shaped blocks respectively. Each set of limiting inserts consists of two blocks, and a limiting groove is formed between the two limiting inserts.

[0010] As a further embodiment of this utility model, two fixing blocks are symmetrically installed on the outer wall of the corresponding arc-shaped block, and two fixing blocks are symmetrically installed on the outer wall of the corresponding arc-shaped block. The two fixing blocks and the two fixing blocks are connected and fixed by two fastening bolts.

[0011] As a further embodiment of this utility model, the outer walls of the first mounting collar and the second mounting collar are respectively divided into arc-shaped protrusions by the first limiting groove and the second limiting groove. The limiting insert is adapted to the first limiting groove and the second limiting groove. The limiting slot is adapted to the connecting ring and the arc-shaped protrusion on the corresponding first limiting groove and the arc-shaped protrusion on the corresponding second mounting collar.

[0012] Compared with related technologies, the vacuum-resistant fluoropolymer-lined corrosion-resistant ball valve provided by this utility model has the following beneficial effects:

[0013] 1. This utility model, through the cooperation of the sealing ring with sealing groove one and sealing groove two, forms a double sealing interface and fixing components to limit the radial and circumferential movement of the connecting ring, which can effectively resist external pressure in a vacuum environment, prevent deformation or displacement of the sealing ring, thereby ensuring the sealing performance of the pipeline and avoiding affecting its use.

[0014] 2. This utility model adopts a symmetrical arc-shaped block structure, which can be quickly disassembled and assembled with a small number of fastening bolts. Pipe connection and sealing component replacement can be completed without complicated tools. The guide design of the limiting groove and arc-shaped protrusion can simplify the installation and positioning process, reduce the difficulty of manual operation, and improve installation efficiency. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0019] In the diagram: 1. Fluorine-lined anti-corrosion ball valve body; 2. Connecting pipe one; 3. Connecting pipe two; 4. Installation pipe; 5. Sealing groove one; 6. Sealing groove two; 7. Connecting ring; 8. Sealing ring; 9. Installation collar one; 10. Limiting groove one; 11. Installation collar two; 12. Limiting groove two; 13. Arc-shaped block; 14. Limiting insert block; 15. Limiting slot; 16. Fixing block one; 17. Fixing block two; 18. Fastening bolt. Detailed Implementation

[0020] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 The vacuum-proof fluoropolymer-lined corrosion-resistant ball valve includes: a fluoropolymer-lined corrosion-resistant ball valve body 1 and two pipe connection mechanisms. The fluoropolymer-lined corrosion-resistant ball valve body 1 is provided with a first connection pipe 2 and a second connection pipe 3. The two pipe connection mechanisms are respectively connected and fixed to the first connection pipe 2 and the second connection pipe 3 on the fluoropolymer-lined corrosion-resistant ball valve body 1.

[0021] The pipe connection mechanism includes an installation pipe 4, a connecting ring 7, a sealing ring 8, a first mounting collar 9, a second mounting collar 11, and a fixing component. The installation pipe 4 is disposed on one side of the second connecting pipe 3. A sealing groove 5 is formed on the inner wall of the end of the second connecting pipe 3 near the installation pipe 4, and a sealing groove 6 is formed on the inner wall of the end of the installation pipe 4 near the second connecting pipe 3. The connecting ring 7 is disposed between the second connecting pipe 3 and the installation pipe 4 and is in contact with the second connecting pipe 3 and the installation pipe 4. The sealing ring 8 is installed on the inner wall of the connecting ring 7, and both ends of the sealing ring 8 extend into the first sealing groove 5 and the second sealing groove 6, respectively, and are adapted to the first sealing groove 5 and the second sealing groove 6.

[0022] The mounting collar 9 is fixedly sleeved on the outer wall of the connecting pipe 3 near the installation pipe 4. A limiting groove 10 is formed on the outer wall of the mounting collar 9, and the mounting collar 9 is in contact with the connecting ring 7.

[0023] The second mounting collar 11 is fixedly sleeved on the outer wall of the end of the installation pipe 4 near the second connecting pipe 3. The outer wall of the second mounting collar 11 has a limiting groove 12. The second mounting collar 11 is in contact with the connecting ring 7.

[0024] The fixing assembly includes two arc-shaped blocks 13, two sets of limiting inserts 14, two fixing blocks 16, two fixing blocks 17, and two fastening bolts 18. The two arc-shaped blocks 13 are symmetrically arranged to form a fixing collar. The two sets of limiting inserts 14 are symmetrically installed on the inner walls of the two arc-shaped blocks 13. Each set of limiting inserts 14 consists of two blocks, and a limiting groove 15 is formed between the two limiting inserts 14.

[0025] Two fixing blocks 16 are symmetrically installed on the outer wall of the corresponding arc-shaped block 13, and two fixing blocks 17 are symmetrically installed on the outer wall of the corresponding arc-shaped block 13. The two fixing blocks 16 and the two fixing blocks 17 are connected and fixed by two fastening bolts 18.

[0026] The outer walls of the first mounting collar 9 and the second mounting collar 11 are respectively divided into arc-shaped protrusions by the first limiting groove 10 and the second limiting groove 12. The limiting insert 14 is adapted to the first limiting groove 10 and the second limiting groove 12. The limiting slot 15 is adapted to the connecting ring 7 and the arc-shaped protrusions on the corresponding first limiting groove 10 and the corresponding arc-shaped protrusions on the second mounting collar 11.

[0027] The body of the fluoropolymer-lined anti-corrosion ball valve can be of model Q41 F4 / F46-10C or the body of the fluoropolymer-lined anti-corrosion ball valve in patent publication number CN217422337U. This application does not impose any restrictions and the choice can be made according to the needs.

[0028] The working principle of the vacuum-proof, fluoropolymer-lined, corrosion-resistant ball valve provided by this utility model is as follows:

[0029] First step: Align the connecting pipe 2 3 with the installation pipe 4, so that the connecting ring 7 is placed between the two, and the two ends of the sealing ring 8 on the connecting ring 7 are respectively embedded in the sealing groove 1 5 on the connecting pipe 2 3 and the sealing groove 2 6 on the installation pipe 4. A seal is formed through the matching structure of the sealing ring 8 and the sealing groove (the outer wall of the sealing ring 8 and the inner wall of the sealing groove are tightly fitted to form a seal).

[0030] The second step involves symmetrically wrapping two arc-shaped blocks 13 around the outer sides of mounting collar one 9 and mounting collar two 11, so that the limiting inserts 14 on the arc-shaped blocks 13 are respectively embedded in the limiting grooves one 10 on mounting collar one 9 and the limiting grooves two 12 on mounting collar two 11 to form a locking and limiting structure. The matching structure of the limiting inserts 14 and the limiting grooves can restrict the circumferential movement of the mounting collar. At the same time, the limiting slots 15 will lock the connecting ring 7 and the arc-shaped protrusions on the mounting collar, forming a radial constraint. Finally, the fixing block one 16 and the fixing block two 17 are connected by the fastening bolts 18, so that the two arc-shaped blocks 13 clamp the mounting collar, which can further compress the sealing ring 8 and increase the sealing pressure.

[0031] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A vacuum-resistant, fluoropolymer-lined, corrosion-resistant ball valve, characterized in that, include: The fluoropolymer-lined anti-corrosion ball valve body and two pipe connection mechanisms are provided. The fluoropolymer-lined anti-corrosion ball valve body is provided with a first connection pipe and a second connection pipe. The two pipe connection mechanisms are respectively connected and fixed to the first connection pipe and the second connection pipe on the fluoropolymer-lined anti-corrosion ball valve body. The pipe connection mechanism includes an installation pipe, a connecting ring, a sealing ring, a first mounting ring, a second mounting ring, and a fixing component. The installation pipe is disposed on one side of the second connecting pipe. A first sealing groove is formed on the inner wall of the end of the second connecting pipe near the installation pipe, and a second sealing groove is formed on the inner wall of the end of the installation pipe near the second connecting pipe. The connecting ring is disposed between the second connecting pipe and the installation pipe and is in contact with both the second connecting pipe and the installation pipe. The sealing ring is installed on the inner wall of the connecting ring, and both ends of the sealing ring extend into the first sealing groove and the second sealing groove, respectively, and are adapted to the first sealing groove and the second sealing groove.

2. The vacuum-resistant fluoropolymer-lined corrosion-resistant ball valve according to claim 1, characterized in that: The first mounting collar is fixedly sleeved on the outer wall of the second connecting pipe near the installation pipe. The outer wall of the first mounting collar has a limiting groove. The first mounting collar is in contact with the connecting ring.

3. The vacuum-resistant fluoropolymer-lined corrosion-resistant ball valve according to claim 1, characterized in that: The second mounting collar is fixedly sleeved on the outer wall of the end of the installation pipe near the second connecting pipe. The outer wall of the second mounting collar has a limiting groove. The second mounting collar is in contact with the connecting ring.

4. The vacuum-resistant, fluoropolymer-lined, corrosion-resistant ball valve according to claim 1, characterized in that: The fixing component includes two arc-shaped blocks, two sets of limiting blocks, two fixing blocks one, two fixing blocks two, and two fastening bolts. The two arc-shaped blocks are symmetrically arranged to form a fixing collar. The two sets of limiting blocks are symmetrically installed on the inner walls of the two arc-shaped blocks respectively. Each set of limiting blocks has two blocks, and a limiting groove is formed between the two limiting blocks.

5. The vacuum-resistant, fluoropolymer-lined, corrosion-resistant ball valve according to claim 4, characterized in that: Two fixing blocks are symmetrically installed on the outer wall of the corresponding arc-shaped block, and two fixing blocks are symmetrically installed on the outer wall of the corresponding arc-shaped block. The two fixing blocks are connected and fixed by two fastening bolts.

6. The vacuum-resistant, fluoropolymer-lined, corrosion-resistant ball valve according to claim 4, characterized in that: The outer walls of the first and second mounting collars are respectively divided into arc-shaped protrusions by the first and second limiting grooves. The limiting insert is adapted to the first and second limiting grooves. The limiting slot is adapted to the connecting ring and the arc-shaped protrusions on the corresponding first and second mounting collars.

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