Novel diffuser balancing pipe fitting

Abstract

A new type of diffusion balance pipe spare is a component technology in fluid conveying system, which makes up for the defects of other similar technologies, which comprises a diffusion balance pipe spare main pipe, a brass plug, a high pressure cap, a sealing rubber ring and a red copper gasket, the middle end of the diffusion balance pipe spare main pipe is sleeved with the brass plug, the upper end of the brass plug is sealed with the upper end of the diffusion balance pipe spare main pipe by two layers of sealing rubber rings, the top end of the diffusion balance pipe spare main pipe is provided with the high pressure cap, and the top end of the diffusion balance pipe spare main pipe and the high pressure cap are provided with the red copper gasket.

Description

Technical Field

[0001] This utility model relates to a component technology in a fluid transport system, and in particular to a novel venting and balancing pipe fitting. Background Technology

[0002] Venting and balancing pipe fittings, as an important component of fluid transport systems, are widely used in petrochemical, gas, heating, and water supply and drainage engineering fields. Their main functions are to regulate pressure fluctuations within the pipeline system, release excess media, and achieve system pressure balance and safety protection. In recent years, with the increasing demands for industrial automation and safety, related patented technologies have emerged continuously. However, despite the progress made by existing patents in structural design, material application, and functional integration, several technical bottlenecks and shortcomings in practical applications still exist. Some available information mentions "a venting pipe fitting with automatic balancing function" and "an integrated high-pressure venting balancing device," but these technologies have some shortcomings. 1. The structure is complex and the maintenance cost is high. Most patents adopt integrated design, integrating multiple functions such as venting, balancing, shutting off and regulating into a single main pipe structure, resulting in complex internal flow channels and a large number of parts. Once a failure occurs (such as valve core jamming or seal failure), disassembly and repair are difficult, requiring complete replacement or on-site handling by professionals, which significantly increases operation and maintenance costs. The complex structure also increases the difficulty of manufacturing tolerance control, affecting product consistency and reliability.

[0003] 2. Poor sealing reliability and easy leakage. In high temperature, high pressure or corrosive media environments, sealing materials (such as rubber gaskets and PTFE fillers) are prone to aging, deformation or corrosion, resulting in micro-leakage after long-term operation. Some patents do not fully consider the impact of thermal expansion and contraction on the sealing surface fit. The sealing performance deteriorates significantly under alternating hot and cold conditions. Incomplete reset after venting causes "residual leakage" problems, affecting system energy efficiency and safety.

[0004] 3. Limited adaptability and weak compatibility with operating conditions: Most patents are designed for specific media (such as natural gas and steam) or fixed pressure levels, making it difficult to adapt to multi-media and variable operating conditions; in low pressure differential or vacuum systems, the balancing function fails and cannot effectively maintain system stability; poor adaptability to media containing particulate matter, high viscosity or easy crystallization, which can easily cause blockage or wear.

[0005] 4. Insufficient safety redundancy design; some patents do not have dual protection mechanisms (such as main valve + backup valve, mechanical + electronic dual triggering), which creates a safety blind spot once the main control system fails; lack of fault self-checking and fault tolerance mechanisms, and cannot automatically switch to safe mode under abnormal conditions.

[0006] 5. Low standardization and poor interchangeability: The interface size, connection method and control protocol of patented products from different manufacturers are not uniform, which makes system integration difficult; the lack of compatibility between different patents makes it difficult to achieve modular replacement, which restricts large-scale application. Summary of the Invention

[0007] The purpose of this utility model is to provide a novel venting and balancing pipe fitting that is simple in structure and easy to operate, thus overcoming the shortcomings of other similar technologies. This utility model achieves its purpose by including... The system includes a venting and balancing pipe main, a brass wire plug, a high-pressure cap, a sealing ring, and a copper gasket. The middle end of the venting and balancing pipe main is fitted with a brass wire plug, and the upper end of the brass wire plug and the upper end of the venting and balancing pipe main are sealed by two layers of sealing rings. The top end of the venting and balancing pipe main is equipped with a high-pressure cap, and a copper gasket is placed between the top end of the venting and balancing pipe main and the high-pressure cap.

[0008] A sealing water line is provided on the inner side of the top of the main venting and balancing pipe fitting; an installation bevel is provided at the bottom of the main venting and balancing pipe fitting with an inclination of 30 degrees to facilitate insertion and installation.

[0009] The brass wire plug has a groove on the outer side of its middle end and two sealing grooves on the outer side of its upper end. The inner diameter of the sealing groove is adapted to the outer diameter of the sealing ring, ensuring a reliable seal.

[0010] The upper part of the high-pressure cap is provided with a gasket step, the size of which is adapted to the outer diameter of the copper gasket to ensure a reliable seal.

[0011] The application method of this utility model involves welding the lower beveled part of the main pipe of the venting and balancing fitting to the steel pressurized pipe that needs to be vented and balanced, and then connecting the upper threaded part to the valve and pressurized tapping equipment.

[0012] After the venting and balancing are completed, the pressure plug is lowered. Two sealing rings are installed on the brass plug (brass is used because it is a soft material, which prevents debris from damaging the threads; the two sealing rings are for better sealing and to achieve a double-level seal). The inner square of the brass plug is connected to the outer square of the plugging device. The outer square has retractable steel balls that fit tightly with the steel ball groove of the inner square to prevent it from falling out. The brass plug is then inserted into the internal thread of the main pipe of the venting and balancing pipe fitting. At this time, the inner shaft of the plugging device rotates clockwise, causing the outer thread of the brass plug to connect with the internal thread of the main pipe of the venting and balancing pipe fitting. As the outer thread of the brass plug rotates and connects with the internal thread of the main pipe of the venting and balancing pipe fitting, the sealing ring of the brass plug gradually seals with the rotation depth of the thread.

[0013] After sealing, remove the valves and equipment on the upper part of the main venting and balancing pipe fitting. Place the copper gasket on the clamping position of the high-pressure cap and install it onto the threaded joint on the upper part of the main venting and balancing pipe fitting. When the threaded joint is tightened, the copper gasket and the sealing water line at the top of the main venting and balancing pipe fitting are tightly compressed and sealed. Then, weld the high-pressure cap to the micro-bevel at the root of the threaded joint on the upper part of the main venting and balancing pipe fitting. After welding, there will be no threaded connection between the venting and balancing pipe fitting and the pressurized steel pipeline, ensuring the long-term safe operation of the pipeline.

[0014] The significance of this invention lies in its simple structure, convenient installation, and low overall cost. The brass plug and copper gasket, both made of brass, achieve a double-level sealing effect through double sealing. Furthermore, the micro-bevel at the root of the threaded section at the top of the high-pressure cap and the main thread of the venting and balancing pipe fitting are welded together, eliminating the need for threaded connections between the venting and balancing pipe fitting and the pressurized steel pipeline. This ensures long-term safe operation of the pipeline and significantly improves operational efficiency. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a new type of venting and balancing pipe fitting. In the diagram, 1 is the main pipe of the venting and balancing pipe fitting, 2 is the brass wire plug, 3 is the high-pressure cap, 4 is the sealing ring, and 5 is the copper gasket.

[0016] Figure 2 This is a structural diagram of the main pipe of the venting and balancing pipe fitting. In the diagram, 1 is the main pipe of the venting and balancing pipe fitting, 6 is the sealing water line, and 7 is the installation bevel.

[0017] Figure 3 This is a schematic diagram of the brass wire plug structure, where 2 represents the brass wire plug, 8 represents the sleeve groove, and 9 represents the sealing groove.

[0018] Figure 4 This is a schematic diagram of a high-voltage cap, where 3 represents the high-voltage cap, 10 represents the gasket step, and so on. Detailed Implementation

[0019] Example 1: This utility model includes a venting and balancing pipe main 1, a brass wire plug 2, a high-pressure cap 3, a sealing ring 4, and a copper gasket 5. The brass wire plug 2 is fitted into the middle end of the venting and balancing pipe main 1, and the upper end of the brass wire plug 2 and the upper end of the venting and balancing pipe main 1 are sealed by two layers of sealing rings 4. The high-pressure cap 3 is installed at the top of the venting and balancing pipe main 1, and a copper gasket 5 is located between the top of the venting and balancing pipe main 1 and the high-pressure cap 3.

[0020] Example 2: A sealing water line 6 is provided on the inner side of the top of the main pipe 1 of the venting and balancing pipe fitting; an installation bevel 7 is provided at the bottom of the main pipe 1 of the venting and balancing pipe fitting, and the slope of the installation bevel 7 is 30 degrees, which facilitates insertion and installation.

[0021] Example 3: The brass wire plug 2 has a sleeve groove 8 on the outer side of its middle end and two sealing grooves 9 on the outer side of its upper end. The inner diameter of the sealing grooves 9 is adapted to the outer diameter of the sealing ring 4, so that the seal is reliable.

[0022] Example 4: The upper part of the high-pressure cap 3 is provided with a gasket step 10. The size of the gasket step 10 is adapted to the outer diameter of the copper gasket 5 to ensure a reliable seal.

Claims

1. A novel venting and balancing pipe fitting, comprising a venting and balancing pipe main (1), a brass wire plug (2), a high-pressure cap (3), a sealing ring (4), and a copper gasket (5), characterized in that: The middle end of the main venting and balancing pipe (1) is fitted with a brass wire plug (2), and the upper end of the brass wire plug (2) and the upper end of the main venting and balancing pipe (1) are sealed by two layers of sealing rubber rings (4); a high pressure cap (3) is installed at the top of the main venting and balancing pipe (1), and a copper gasket (5) is placed between the top of the main venting and balancing pipe (1) and the high pressure cap (3).

2. The novel venting and balancing pipe fitting according to claim 1, characterized in that: The top inner side of the main venting and balancing pipe (1) is provided with a sealing water line (6); the bottom end of the main venting and balancing pipe (1) is provided with an installation bevel (7), the slope of which is 30 degrees, to facilitate insertion and installation.

3. The novel venting and balancing pipe fitting according to claim 1, characterized in that: The brass wire plug (2) has a sleeve groove (8) on the outer side of its middle end, and two sealing grooves (9) on the outer side of its upper end. The inner diameter of the sealing groove (9) is adapted to the outer diameter of the sealing ring (4), so that the seal is reliable.

4. A novel venting and balancing pipe fitting according to claim 1, characterized in that: The high-pressure cap (3) has a gasket step (10) at its upper interior. The size of the gasket step (10) is adapted to the outer diameter of the copper gasket (5) to ensure a secure seal.

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