CN221034002U - High-performance bidirectional sealing spherical butterfly valve - Google Patents

Abstract

The utility model relates to the field of valve technology, specifically a high-performance two-way sealed spherical butterfly valve, including a valve body, a valve shaft installed on the inner side of the valve body, a connecting seat installed on one end of the valve body, a sleeve installed between the inner side of the valve body and the outer wall of the valve shaft, a butterfly plate fixed to the outer wall of the valve shaft by a conical pin, a stuffing area arranged near the connecting seat at one end of the valve body, and an adjusting pressure ring installed in the gap between the two ends of the valve body and the end of the butterfly plate. In the high-performance two-way sealed spherical butterfly valve, the valve adopts a unique two-way sealing design, which can effectively prevent fluid leakage from any direction, thereby ensuring the safety and reliability of the fluid control system. This sealing performance is achieved through a combination of multiple structural components, including a valve body, a valve shaft, a sleeve, a butterfly plate, a stuffing area, an adjusting pressure ring and other parts. The valve can be conveniently connected to various fluid systems through a connecting seat arranged at one end of the valve body.

Description

A high performance two-way sealing spherical butterfly valve

Technical Field

The utility model relates to the technical field of valves, in particular to a high-performance bidirectional sealing spherical butterfly valve.

Background technique

Spherical hard seal butterfly valve is used for water supply and drainage, power plants, coking, coal gas and other general corrosive gases, liquids, media regulation and interception. It is an advanced valve widely used in various fluid control systems. The main advantages of this valve are its fast switching and good sealing performance.

However, the existing spherical butterfly valve still has some problems in design and function, such as complex structure, inconvenient installation and maintenance, and possible wear and leakage during use. Therefore, it is of great practical value to develop a new type of high-performance two-way sealing spherical butterfly valve.

Utility Model Content

The purpose of the utility model is to provide a high-performance two-way sealed spherical butterfly valve to solve the problems of the existing spherical butterfly valves mentioned in the above background technology in design and function, such as complex structure, inconvenient installation and maintenance, and possible wear and leakage during use.

To achieve the above-mentioned purpose, the utility model provides a high-performance two-way sealed spherical butterfly valve, including a valve body, a valve shaft is installed on the inner side of the valve body, a connecting seat is installed on one end of the valve body, a shaft sleeve is installed between the inner side of the valve body and the outer wall of the valve shaft, a butterfly plate is fixed to the outer wall of the valve shaft by a conical pin, a packing area is arranged at one end of the valve body near the connecting seat, and an adjusting pressure ring is installed in the gap between the two ends of the valve body and the end head of the butterfly plate.

Preferably, a transmission key is installed on the outer side of one end of the valve shaft.

Preferably, one end of the connection seat is connected to the external pipeline through a first bolt, and the other end of the connection seat is connected to the valve body through a second bolt.

Preferably, a first O-ring and a positioning sleeve are provided in the packing area, and the outer side of the first O-ring is sealed by a packing gland.

Preferably, a sealing ring and a second O-ring are installed on the inner ring of the adjusting pressure ring.

Preferably, a bottom cover is mounted on one end of the valve body away from the connecting seat via a third bolt.

Preferably, an asbestos pad is provided between the bottom cover and the valve body.

Preferably, the bottom of the valve body is supported and fixed by a bracket.

Compared with the prior art, the utility model has the following beneficial effects:

The high-performance two-way sealing spherical butterfly valve adopts a unique two-way sealing design, which can effectively prevent fluid leakage from any direction, thereby ensuring the safety and reliability of the fluid control system. This sealing performance is achieved through the combination of multiple structural components, including the valve body, valve shaft, sleeve, butterfly plate, packing area, adjusting pressure ring and other parts. Through the connection seat set at one end of the valve body, the valve can be easily connected to various fluid systems. At the same time, the sealing pressure of the butterfly plate can be easily adjusted through the adjusting pressure rings set at both ends of the valve body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the external structure of the utility model;

FIG2 is a schematic diagram of the internal structure of the utility model;

FIG3 is a partial enlarged schematic diagram of point A in FIG2 of the present invention.

The meaning of each number in the figure is:

1. Drive key; 2. Valve shaft; 3. First bolt; 5. Connecting seat; 6. Second bolt; 9. Packing gland; 10. First O-ring; 11. Positioning sleeve; 12. Bushing; 13. Valve body; 14. Conical pin; 15. Butterfly plate; 16. Sealing ring; 17. Second O-ring; 18. Adjusting pressure ring; 19. Asbestos pad; 20. Bottom cover; 21. Third bolt; 22. Bracket.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The utility model provides a high-performance two-way sealed spherical butterfly valve, as shown in Figures 1 to 3, comprising a valve body 13, a valve shaft 2 is installed on the inner side of the valve body 13, a connecting seat 5 is installed on one end of the valve body 13, which facilitates the connection of the valve with various fluid systems, a shaft sleeve 12 is installed between the inner side of the valve body 13 and the outer wall of the valve shaft 2, which improves the sealing performance and stability of the valve, a butterfly plate 15 is fixed to the outer wall of the valve shaft 2 through a conical pin 14, and fast and stable switching operation is achieved, a packing area is provided at one end of the valve body 13 near the connecting seat 5, and an adjusting pressure ring 18 is installed in the gap between the two ends of the valve body 13 and the end of the butterfly plate 15.

In this embodiment, a transmission key 1 is installed on the outer side of one end of the valve shaft 2 to facilitate external connection with an actuator.

Specifically, one end of the connection seat 5 is connected to the external pipeline through the first bolt 3 , and the other end of the connection seat 5 is connected to the valve body 13 through the second bolt 6 , which facilitates the installation and fixation of the connection seat 5 .

Furthermore, a first O-ring 10 and a positioning sleeve 11 are provided in the packing area, and the outer side of the first O-ring 10 is sealed by a packing gland 9, thereby enhancing the sealing performance of the valve and reducing the possibility of fluid leakage.

Furthermore, the inner ring of the adjusting pressure ring 18 is installed with a sealing ring 16 and a second O-ring 17, which further improves the sealing performance of the valve.

Furthermore, a bottom cover 20 is mounted on one end of the valve body 13 away from the connecting seat 5 through a third bolt 21, which facilitates maintenance and replacement of the valve.

Furthermore, an asbestos pad 19 is provided between the bottom cover 20 and the valve body 13 to enhance the sealing and heat insulation properties of the valve.

Furthermore, the bottom of the valve body 13 is supported and fixed by a bracket 22, thereby improving the stability and safety of the valve.

When the high-performance bidirectional sealing spherical butterfly valve of the utility model is used, after the valve is installed, the connecting seat 5 is first connected to the external pipeline by bolts to ensure that the valve can form a sealed connection with the external pipeline. Start the actuator, drive the valve shaft 2 to rotate through the transmission key 1, thereby driving the butterfly plate 15 to move. When the butterfly plate 15 rotates to the specified position, the gap between the butterfly plate 15 and the valve body 13 will form a seal to prevent the fluid from flowing from one side of the valve to the other side. During the rotation of the butterfly plate 15, the first O-ring 10 and the positioning sleeve 11 in the packing area will be squeezed and deformed, thereby forming a sealing ring 16 on the outside of the butterfly plate 15. At the same time, the packing gland 9 will press the first O-ring 10 to enhance the sealing effect. When the valve needs to be closed, the actuator will continue to drive the valve shaft 2 to rotate, and the butterfly plate 15 will continue to rotate and gradually fit with the valve body 13. At this time, the sealing ring 16 and the second O-ring 17 installed on the inner ring of the adjusting pressure ring 18 will play an auxiliary sealing role to ensure that the valve is completely closed. During the rotation of the butterfly plate 15, the asbestos pad 19 between the bottom cover 20 and the valve body 13 will play a role of heat insulation and sealing to prevent fluid leakage from the bottom. During the operation of the valve, the bracket 22 can effectively support and fix the valve body 13 to enhance the stability and safety of the valve.

The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims (8)

1. The utility model provides a high performance two-way seal sphere butterfly valve, includes valve body (13), its characterized in that: valve shaft (2) are installed to the inboard of valve body (13), connecting seat (5) are installed to the one end of valve body (13), install axle sleeve (12) between the inboard of valve body (13) and the outer wall of valve shaft (2), the outer wall of valve shaft (2) is fixed with butterfly plate (15) through taper pin (14), the one end of valve body (13) is close to connecting seat (5) department and is provided with the packing district, gap department installs regulation clamping ring (18) between the both ends of valve body (13) and the end of butterfly plate (15).

2. The high performance bi-directional sealing spherical butterfly valve of claim 1, wherein: and a transmission key (1) is arranged on the outer side of one end of the valve shaft (2).

3. The high performance bi-directional sealing spherical butterfly valve of claim 1, wherein: one end of the connecting seat (5) is connected with an external pipeline through a first bolt (3), and the other end of the connecting seat (5) is connected with the valve body (13) through a second bolt (6).

4. The high performance bi-directional sealing spherical butterfly valve of claim 1, wherein: a first O-shaped ring (10) and a positioning sleeve (11) are arranged in the packing area, and the outer side of the first O-shaped ring (10) is sealed through a packing gland (9).

5. The high performance bi-directional sealing spherical butterfly valve of claim 1, wherein: the inner ring of the adjusting pressing ring (18) is provided with a sealing ring (16) and a second O-shaped ring (17).

6. The high performance bi-directional sealing spherical butterfly valve of claim 1, wherein: one end of the valve body (13) far away from the connecting seat (5) is provided with a bottom cover (20) through a third bolt (21).

7. The high performance bi-directional sealing spherical butterfly valve of claim 6, wherein: an asbestos pad (19) is arranged between the bottom cover (20) and the valve body (13).

8. The high performance bi-directional sealing spherical butterfly valve of claim 1, wherein: the lower part of the valve body (13) is supported and fixed by a bracket (22).