Leakage-proof connecting device for pressure container

Abstract

The utility model relates to the technical field of pressure container anti-leakage connecting devices, in particular to a pressure container anti-leakage connecting device which comprises a female head connector, a liquid channel is arranged in the female head connector, and the liquid channel is of a structure with the middle narrow and the two ends wide. A first internal thread and a second internal thread are arranged on the inner walls of wide openings in the two sides of the liquid channel correspondingly, a male head base is arranged in the female head connector and arranged at the position of the second internal thread, an external thread is arranged on the outer wall face of the male head base, and the external thread and the second internal thread are in threaded butt joint and fixed. And a guide pipe is arranged in the male head base in a penetrating manner. According to the utility model, the installation and maintenance time is greatly shortened, the operation difficulty is reduced, the sealing reliability and safety are effectively improved, the quick connection device is suitable for the quick connection requirements of various pressure containers and pipeline systems, and the quick connection device has obvious advantages especially in the scene of frequent disassembly and assembly or emergency response.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage - proof connection devices for pressure vessels, and particularly to a leakage - proof connection device for pressure vessels. Background Art

[0002] A pressure vessel is a container that operates under internal or external pressure. They are widely used in various industrial fields such as chemical industry, petroleum, natural gas, power, pharmaceutical, and food processing.

[0003] The design, manufacture, and use of pressure vessels must comply with strict safety standards and regulations to ensure their safe operation under high - pressure environments.

[0004] A leakage - proof connection device for pressure vessels is a component designed to quickly connect and disconnect fluid transfer in pressure vessels and pipeline systems. Such joints are particularly suitable for occasions that require frequent assembly and disassembly while ensuring sealing and safety.

[0005] Currently, the leakage - proof connection devices on the market generally have problems such as time - consuming installation, the need for professional tools and skills, and difficulty in frequent disassembly and assembly.

[0006] Especially in industrial applications that require quick response and high efficiency, the limitations of these traditional connection methods are particularly prominent.

[0007] Therefore, the market urgently demands a leakage - proof connection device for pressure vessels that can simplify the installation process, shorten the maintenance time, and ensure sealing and safety. Summary of the Utility Model

[0008] The purpose of the utility model is to solve the above - mentioned disadvantages in the prior art and propose a connection solution that is easy to operate, has reliable sealing, and is convenient for maintenance.

[0009] To achieve the above purpose, the utility model adopts the following technical solutions:

[0010] Design a pressure vessel anti-leakage connection device, including a female head joint. A liquid channel is arranged inside the female head joint. The liquid channel has a structure that is narrow in the middle and wide at both ends. First internal threads and second internal threads are respectively arranged on the inner walls of the wide openings on both sides of the liquid channel. A male head base is arranged inside the female head joint, and the male head base is arranged at the position of the second internal thread. An external thread is arranged on the outer wall surface of the male head base, and the external thread is threadedly docked and fixed with the second internal thread. A guide tube penetrates through the inside of the male head base, and a through hole is arranged in the middle position of the male head base. The inner wall surface of the through hole is slidably sleeved with the outer wall surface of the guide tube. An extension outer ring is arranged at the inner end of the guide tube, and the extension outer ring and the guide tube are of an integral structure. A sealing ring is arranged in a fitting manner between the inner side end face of the male head base and the extension outer ring, and the inner wall of the inner ring of the sealing ring wraps around the outer wall surface of the guide tube.

[0011] Specifically, a head is arranged at the outer end of the male head base, and the outer wall of the head is of a hexagonal structure.

[0012] Specifically, both the female head joint and the male head base are made of 304 or 306L stainless steel materials.

[0013] Specifically, the sealing ring is made of PFA, PTFE or fluororubber materials.

[0014] Specifically, the outer wall diameter of the sealing ring is 1.2 times the inner diameter of the position where the liquid channel is located, and the outer wall of the sealing ring is tightly pressed against the inner wall surface of the liquid channel.

[0015] The design scheme proposed by the present utility model has the following beneficial effects during application:

[0016] 1. Joint body: Made of high-strength and corrosion-resistant materials, with a precise diversion channel inside to ensure smooth flow of the medium.

[0017] 2. Quick-twist mechanism: Designed with a unique thread matching structure, allowing users to quickly complete the connection and separation of the joint with the pressure vessel or pipeline only by hand or simple tools, simplifying the installation process and significantly improving work efficiency.

[0018] 3. Sealing assembly: Includes at least one high-performance sealing ring (such as a fluororubber sealing ring). Its shape and position are carefully designed to ensure automatic centering and uniform force application during the quick-twist process, ensuring high-standard sealing effects under different working conditions and reducing the risk of leakage. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2Schematic front view structure of the present utility model;

[0021] Figure 3 Schematic internal structure view of the present utility model;

[0022] Figure 4 Schematic front view of the male head base of the present utility model.

[0023] In the figure: 10, female head connector; 11, liquid channel; 12, first internal thread; 13, second internal thread; 14, male head base; 15, guiding tube; 16, sealing ring; 17, external thread. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Refer to Figures 1 - 4 , a pressure vessel anti-leakage connection device, including a female head connector 10. A liquid channel 11 is arranged inside the female head connector 10. The liquid channel 11 has a structure that is narrow in the middle and wide at both ends. First internal thread 12 and second internal thread 13 are respectively arranged on the inner walls of the wide openings on both sides of the liquid channel 11. A male head base 14 is arranged inside the female head connector 10, and the male head base 14 is arranged at the position of the second internal thread 13. An external thread 17 is arranged on the outer wall surface of the male head base 14, and the external thread 17 is threadedly docked and fixed with the second internal thread 13. A guiding tube 15 is arranged through the inside of the male head base 14, and a through hole is arranged at the middle position of the male head base 14, and the inner wall surface of the through hole is slidably sleeved with the outer wall surface of the guiding tube 15. An extending outer ring is arranged at the inner end of the guiding tube 15, and the extending outer ring and the guiding tube 15 are of an integral structure. A sealing ring 16 is arranged in a fitting manner between the inner side end surface of the male head base 14 and the extending outer ring, and the inner ring wall of the sealing ring 16 wraps around the outer wall surface of the guiding tube 15.

[0026] The anti-leakage connection device in this solution is composed of a female head connector, a male head base, a guiding tube, and a sealing ring. By tightening the thread to squeeze the sealing ring to closely fit with the sealing position, the liquid agent sealing and anti-leakage effect is achieved. It not only greatly shortens the installation and maintenance time, reduces the operation difficulty, but also effectively improves the reliability and safety of the seal, and is applicable to the rapid connection requirements of various pressure vessels and pipeline systems, especially having obvious advantages in frequent disassembly and assembly or emergency response scenarios.

[0027] Further, it should be noted that the outer end of the male head base 14 is provided with a head end, and the outer circumferential wall of the head end is hexagonal. This allows users to quickly complete the connection and separation of the connector from the pressure vessel or pipeline with only their hands or simple tools, simplifying the installation process and significantly improving work efficiency.

[0028] Further, it should be noted that both the female head connector 10 and the male head base 14 are made of 304 or 316L stainless steel materials. Stainless steel has excellent corrosion resistance and can remain stable in various corrosive environments. This is because a thin and dense chromium oxide film forms on the surface of stainless steel, which can prevent further oxidation and corrosion. Stainless steel has relatively high strength and hardness and can maintain good mechanical properties in high-pressure and high-temperature environments. Stainless steel can still maintain its physical and chemical properties at high temperatures and is suitable for applications in high-temperature environments.

[0029] Further, it should be noted that the sealing ring 16 is made of PFA, PTFE or fluororubber materials. PFA has extremely high chemical stability and can withstand the corrosion of most acids, alkalis, solvents and other chemicals. It is suitable for strongly corrosive environments. PFA has excellent thermal stability and can maintain its physical and chemical properties at high temperatures. Its continuous use temperature can reach 260°C, and the short-term use temperature is even higher;

[0030] PTFE has extremely strong chemical resistance and can resist the erosion of most acids, alkalis, solvents and other chemicals. This makes it an ideal material for chemical processing and laboratory equipment. PTFE has excellent high-temperature resistance and can be used continuously at temperatures up to 260°C (500°F) for a long time, and can withstand even higher temperatures for a short time;

[0031] Fluororubber has good high-temperature resistance and can be used continuously in high-temperature environments of 200°C to 250°C. Fluororubber has strong resistance to most chemicals, oils, fuels and solvents. Fluororubber has excellent weather resistance and aging resistance and can be used in harsh environmental conditions for a long time without significant performance degradation.

[0032] Further, it should be noted that the outer circumferential wall diameter of the sealing ring 16 is 1.2 times the inner diameter of the position where the liquid channel 11 is located. The outer circumferential wall of the sealing ring 16 is tightly pressed against the inner wall surface of the liquid channel 11. By making the size of the sealing ring 16 larger than the inner diameter of the liquid channel 11, a squeezing state can be formed, thereby improving the densification effect.

[0033] Working mode: The leak-proof connection device can be connected or separated by simple rotation, which greatly saves operation time and improves work efficiency. Considering the use safety in a pressure environment, a threaded design is adopted to prevent accidental disconnection and ensure no leakage under working pressure. Even in an environment with poor visibility or limited space, the connection can be easily completed. Multiple sizes, materials (such as 304, 316L, etc. for the body material), and sealing rings (such as PFA, PTFE, fluororubber, etc. for the sealing ring material) can be provided according to different application requirements to adapt to different media (water, gas, chemical liquids, etc.) and working environments (such as high temperature, corrosive environment).

[0034] A leak-proof connection device that can be quickly installed and disassembled through optimized mechanical structure design, reducing the cumbersome steps in the installation process and the dependence on special tools to achieve quick positioning and fastening.

[0035] High-temperature and corrosion-resistant sealing materials are used to improve the sealing performance of the joint. At the same time, through optimizing the design and processing technology of the sealing surface, the sealing effect of the joint in different working environments is ensured. The designed joint has good dust and waterproof performance, ensuring stable operation even in outdoor or harsh environments and extending the service life.

[0036] The main purpose is to achieve quick and convenient connection and efficient and reliable sealing effect through innovative quick-twist mechanism and enhanced sealing design, so as to meet the dual requirements of modern industry for efficiency and safety.

[0037] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A pressure vessel anti-leakage connection device, comprising a female connector (10), characterized in that: The female connector (10) is provided with a liquid channel (11) inside. The liquid channel (11) is a structure that is narrow in the middle and wide at both ends. The wide inner walls on both sides of the liquid channel (11) are respectively provided with a first internal thread (12) and a second internal thread (13). The female connector (10) is provided with a male base (14) inside. The male base (14) is arranged at the position of the second internal thread (13). The outer wall surface of the male base (14) is provided with an external thread (17). The external thread (17) and the second internal thread (13) are mutually connected. The male base (14) is fixed by threaded connection, a guide tube (15) is provided inside the male base (14), and a through hole is provided in the middle position of the male base (14), and the inner wall surface of the through hole is slidably sleeved with the outer wall surface of the guide tube (15), an extended outer ring is provided at the inward end of the guide tube (15), and the extended outer ring and the guide tube (15) are an integrated structure, a sealing ring (16) is provided between the inward end surface of the male base (14) and the extended outer ring, and the inner ring wall of the sealing ring (16) is wrapped around the outer wall surface of the guide tube (15).

2. The pressure vessel anti-leakage connection device according to claim 1, characterized in that: The male base (14) is provided with a terminal at one end facing outward, and the outer wall of the terminal is a hexagonal structure.

3. The pressure vessel anti-leakage connection device according to claim 1, characterized in that: The female connector (10) and the male base (14) are both made of 304 or 316L stainless steel.

4. The pressure vessel anti-leakage connection device according to claim 1, characterized in that: The sealing ring (16) is made of PFA, PTFE or fluororubber material.

5. The pressure vessel anti-leakage connection device according to claim 1, characterized in that: The outer wall diameter of the sealing ring (16) is 1.2 times the inner diameter of the location of the liquid channel (11), and the outer wall of the sealing ring (16) is tightly pressed against the inner wall surface of the liquid channel (11).

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