Novel forged steel stop valve with medium buffering function
By introducing a buffer chamber and a buffer spring structure into the forged steel stop valve, the problem of media impact during the rapid opening and closing of the traditional forged steel stop valve is solved, and the smooth flow of the medium and the stable operation of the system are achieved.
Patent Information
- Application Number
- CN202422465421.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-12
AI Technical Summary
During the rapid opening and closing of traditional forged steel stop valves, the high-speed flow of the medium will cause severe impact on the valve disc and valve seat, resulting in wear, noise and fluid pressure instability, affecting the stable operation of the system.
A forged steel shut-off valve with buffering function is designed, including a buffer chamber, a streamlined design and a buffer spring structure. Through the streamlined distribution in the buffer chamber and a streamlined design of the valve disc, the media flow resistance is reduced, and the buffer spring is used to absorb the impact energy of the medium, providing additional buffering force to ensure the smooth flow of the medium.
It effectively reduces noise and vibration during medium flow, reduces wear of valve disc and valve seat, ensures the stability of fluid pressure and the smooth operation of the system.
Smart Images
Figure CN223152782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forged steel globe valves, in particular to a novel forged steel globe valve with a medium buffering function. Background Technique
[0002] A forged steel globe valve refers to a valve in which the closing member (valve flap) moves along the center line of the valve seat. Its valve stem axis is perpendicular to the valve seat sealing surface, and the opening or closing stroke of the valve stem is relatively short, having a very reliable cutting function. At the same time, since the change of the valve seat port is proportional to the stroke of the valve flap, the forged steel globe valve is also suitable for flow regulation. The forged steel globe valve is applicable to a variety of pressure and temperature ranges, as well as different media. For example, it can be used for various media such as water, steam, oil products, nitric acid, acetic acid, oxidizing media, urea, etc. In addition, the forged steel globe valve is also widely used in pipeline systems in fields such as tap water, sewage, construction, petroleum, chemical industry, food, medicine, light textile, electric power, ships, metallurgy, and energy systems as a throttling device.
[0003] However, in actual use of the prior art, traditional forged steel globe valves mainly control the on-off of fluids by the lifting of the valve flap. However, during the rapid opening and closing process, the high-speed flow of the medium often causes severe impacts on the valve flap and the valve seat, not only accelerating the wear of the valve flap and the valve seat, but also possibly causing noise and instability of the fluid pressure, affecting the stable operation of the system. Content of the Utility Model
[0004] The purpose of the utility model is to provide a novel forged steel globe valve with a medium buffering function to solve the problem proposed in the above background technique that traditional forged steel globe valves mainly control the on-off of fluids by the lifting of the valve flap. However, during the rapid opening and closing process, the high-speed flow of the medium often causes severe impacts on the valve flap and the valve seat, not only accelerating the wear of the valve flap and the valve seat, but also possibly causing noise and instability of the fluid pressure, affecting the stable operation of the system.
[0005] To achieve the above purpose, the utility model provides the following technical solutions: including a forged steel globe valve body, an inlet and an outlet are respectively opened at the front and rear ends of the forged steel globe valve body, a buffer cavity is opened inside the forged steel globe valve body, a valve seat is penetrated through the middle of the buffer cavity, a limiting ring platform is arranged on the inner wall of the valve seat, a first buffer spring is fixedly installed at the upper end of the limiting ring platform, a connecting ring is fixedly installed at the upper end of the first buffer spring, and a sealing buffer ring for sealing and buffering the valve seat is fixedly installed at the upper end of the connecting ring;
[0006] A valve cover is fixedly installed at the upper end of the forged steel globe valve body. A packing gland is fixedly installed in the middle of the valve cover for support. A support screw rod is fixedly installed in the middle of the upper end of the valve cover. A support platform is fixedly installed on the support screw rod. A transmission nut is fixedly installed through the middle of the support platform. A valve stem is threadedly connected to the inner wall of the transmission nut. A handwheel for rotating the valve stem is fixedly installed at the upper end of the valve stem. The bottom of the valve stem is rotatably connected to a limit tube through a rotating shaft. A second buffer spring is fixedly installed at the inner top of the limit tube. A limit post is fixedly installed at the bottom of the second buffer spring. A valve flap that is hermetically sealed with the inner wall of the upper end of the sealing buffer ring is fixedly installed at the bottom of the limit post. A flow guiding groove is formed at the lower edge of the valve flap.
[0007] Preferably, connecting flanges are respectively fixedly installed at the outer ends of the inlet and the outlet, so that the inlet and the outlet are respectively communicated with external medium pipelines through the connecting flanges, and the inside of the buffer cavity is distributed in a streamline shape.
[0008] Preferably, there are several first buffer springs, which are symmetrically distributed in sequence on the upper end of the limit ring platform, and the sealing buffer ring is made of rubber material.
[0009] Preferably, there are two support screw rods, which are symmetrically distributed in the middle of the upper end of the valve cover.
[0010] Preferably, the lower end of the valve stem passes through the packing gland downward and extends into the forged steel globe valve body.
[0011] Preferably, there are several second buffer springs, which are symmetrically distributed in sequence on the inner top of the limit tube. The outer curved surface of the upper end of the limit post is in fitting and movable connection with the inner wall of the limit tube, so that the limit tube and the second buffer spring cooperate to elastically buffer and support the limit post.
[0012] Preferably, the outer end of the valve flap is designed in a streamline shape, and there are several flow guiding grooves, which are symmetrically distributed in sequence on the lower edge of the valve flap.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. When the valve flap moves linearly up and down in the present utility model, it will cooperate with the sealing buffer ring to open or close the valve seat. When the valve seat is opened or closed, the medium inside the forged steel globe valve body will flow through the buffer cavity and the valve seat. When the medium inside the forged steel globe valve body flows through the buffer cavity and the valve seat, due to the streamline distribution inside the buffer cavity and the streamline design of the outer end of the valve flap, the resistance during the medium flow will be reduced. At the same time, the medium is guided by the flow guiding groove to achieve a smooth transition, reducing the formation of turbulence and eddy currents, thereby reducing noise and vibration.
[0015] 2. When the medium inside the forged steel globe valve body flows through the buffer chamber and the valve seat, the first buffer spring and the second buffer spring will be deformed under force. When the first buffer spring and the second buffer spring are deformed under force, the elastic potential energy generated by the first buffer spring and the second buffer spring will absorb the impact energy of the medium. At the same time, when the valve flap closes, an additional buffer force will be provided to further reduce the impact, ensuring that the medium can flow evenly and smoothly during the opening and closing processes of the valve, and reducing the pressure fluctuation and energy loss caused by the sudden change of the flow channel. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 FIG. is a schematic diagram of the overall structure of a new type of forged steel globe valve with a medium buffering function according to the present utility model;
[0017] Figure 2 FIG. is a schematic cross-sectional view of the overall structure of a new type of forged steel globe valve with a medium buffering function according to the present utility model;
[0018] Figure 3 FIG. is a schematic cross-sectional view of a partial structure of a new type of forged steel globe valve with a medium buffering function according to the present utility model.
[0019] In the figure: 1. Forged steel globe valve body; 2. Inlet; 3. Outlet; 4. Buffer chamber; 5. Valve seat; 6. Limiting ring platform; 7. First buffer spring; 8. Connecting ring; 9. Sealing buffer ring; 10. Valve cover; 11. Packing gland; 12. Support screw; 13. Support platform; 14. Driving nut; 15. Valve stem; 16. Handwheel; 17. Limiting tube; 18. Second buffer spring; 19. Limiting column; 20. Valve flap; 21. Flow guiding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0021] Please refer to Figures 1-3, the present utility model provides a technical solution for a new type of forged steel globe valve with a medium buffering function: It includes a forged steel globe valve body 1. An inlet 2 and an outlet 3 are respectively provided at the front and rear ends of the forged steel globe valve body 1. And connecting flanges are respectively fixedly installed at the outer ends of the inlet 2 and the outlet 3, so that the inlet 2 and the outlet 3 are respectively communicated with external medium pipelines through the connecting flanges. A buffer chamber 4 is provided inside the forged steel globe valve body 1, and the inside of the buffer chamber 4 is distributed in a streamline shape. A valve seat 5 is provided through the middle of the buffer chamber 4. A limiting ring platform 6 is provided on the inner wall of the valve seat 5. A first buffer spring 7 is fixedly installed at the upper end of the limiting ring platform 6, and the number of the first buffer springs 7 is several, which are symmetrically distributed in sequence with the upper end of the limiting ring platform 6. A connecting ring 8 is fixedly installed at the upper end of the first buffer spring 7. A sealing and buffering ring 9 for sealing and buffering the valve seat 5 is fixedly installed at the upper end of the connecting ring 8, and the sealing and buffering ring 9 is made of rubber material;
[0022] A valve cover 10 is fixedly installed at the upper end of the forged steel globe valve body 1. A packing gland 11 is supported and fixedly installed in the middle of the valve cover 10. A support screw 12 is fixedly installed in the middle of the upper end of the valve cover 10, and the number of the support screws 12 is two, which are symmetrically distributed with the middle of the upper end of the valve cover 10. A support platform 13 is fixedly installed on the support screw 12. A transmission nut 14 is fixedly installed through the middle of the support platform 13. A valve stem 15 is threadedly connected to the inner wall of the transmission nut 14. A handwheel 16 for rotating the valve stem 15 is fixedly installed at the upper end of the valve stem 15. The lower end of the valve stem 15 passes through the packing gland 11 and extends into the inside of the forged steel globe valve body 1. The bottom of the valve stem 15 is rotatably connected to a limiting tube 17 through a rotating shaft. A second buffer spring 18 is fixedly installed at the inner top of the limiting tube 17, and the number of the second buffer springs 18 is several, which are symmetrically distributed in sequence with the inner top of the limiting tube 17. A limiting column 19 is fixedly installed at the bottom of the second buffer spring 18, and the outer curved surface of the upper end of the limiting column 19 is fittingly and movably connected to the inner wall of the limiting tube 17, so that the limiting column 19 is elastically buffered and supported through the cooperation of the limiting tube 17 and the second buffer spring 18. A valve flap 20 that is hermetically fitted with the upper inner wall of the sealing and buffering ring 9 is fixedly installed at the bottom of the limiting column 19, and the outer end of the valve flap 20 is designed in a streamline shape. A flow guiding groove 21 is provided at the lower edge of the valve flap 20, and the number of the flow guiding grooves 21 is several, which are symmetrically distributed in sequence with the lower edge of the valve flap 20.
[0023] Working principle: During use, this utility model rotates the handwheel 16. When the handwheel 16 rotates, it drives the valve stem 15 to rotate. When the valve stem 15 rotates, due to the force generated by the threaded connection with the inner wall of the transmission nut 14, the valve stem 15 moves linearly up and down. When the valve stem 15 moves linearly up and down, it synchronously drives the valve disc 20 to move linearly up and down. When the valve disc 20 moves linearly up and down, it cooperates with the sealing buffer ring 9 to open or close the valve seat 5. When the valve seat 5 is opened or closed, the medium inside the forged steel stop valve body 1 flows through the buffer cavity 4 and the valve seat 5. When the medium inside the forged steel stop valve body 1 flows through the buffer cavity 4 and the valve seat 5, due to the streamlined distribution inside the buffer cavity 4 and the streamlined design adopted at the outer end of the valve disc 20, the resistance during the medium flow is reduced. At the same time, the medium is guided by the diversion groove 21 to achieve a smooth transition, reducing the formation of turbulence and eddy currents, thereby reducing noise and vibration;
[0024] Meanwhile, when the medium inside the forged steel stop valve body 1 flows through the buffer cavity 4 and the valve seat 5, the first buffer spring 7 and the second buffer spring 18 are deformed by the force. When the first buffer spring 7 and the second buffer spring 18 are deformed by the force, the elastic potential energy generated by the first buffer spring 7 and the second buffer spring 18 absorbs the impact energy of the medium. At the same time, when the valve disc 20 closes, an additional buffer force is provided to further slow down the impact, ensuring that the medium can flow evenly and smoothly during the opening and closing processes of the valve, reducing the pressure fluctuations and energy losses caused by sudden changes in the flow path.
[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0026] Although the embodiments of this utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A new type of forged steel globe valve with a medium buffering function, characterized in that: It includes a forged steel globe valve body (1). An inlet (2) and an outlet (3) are respectively provided at the front and rear ends of the forged steel globe valve body (1). A buffer cavity (4) is provided inside the forged steel globe valve body (1). A valve seat (5) is provided through the middle of the buffer cavity (4). A limiting ring platform (6) is provided on the inner wall of the valve seat (5). A first buffer spring (7) is fixedly installed at the upper end of the limiting ring platform (6). A connecting ring (8) is fixedly installed at the upper end of the first buffer spring (7). A sealing buffer ring (9) for sealing and buffering the valve seat (5) is fixedly installed at the upper end of the connecting ring (8). A valve cover (10) is fixedly installed at the upper end of the forged steel globe valve body (1). A packing gland (11) is supported and fixedly installed in the middle of the valve cover (10). A support screw rod (12) is fixedly installed in the middle of the upper end of the valve cover (10). A support platform (13) is fixedly installed on the support screw rod (12). A transmission nut (14) is fixedly installed through the middle of the support platform (13). A valve stem (15) is threadedly connected to the inner wall of the transmission nut (14). A handwheel (16) for rotating the valve stem (15) is fixedly installed at the upper end of the valve stem (15). The bottom of the valve stem (15) is rotatably connected to a limiting tube (17) through a rotating shaft. A second buffer spring (18) is fixedly installed at the inner top of the limiting tube (17). A limiting column (19) is fixedly installed at the bottom of the second buffer spring (18). A valve disc (20) that is hermetically fitted with the upper inner wall of the sealing buffer ring (9) is fixedly installed at the bottom of the limiting column (19). A flow guiding groove (21) is provided at the lower edge of the valve disc (20).
2. The novel forged steel globe valve with a medium buffering function according to claim 1, wherein: Connecting flanges are respectively fixedly installed at the outer ends of the inlet (2) and the outlet (3), so that the inlet (2) and the outlet (3) are respectively communicated with external medium pipelines through the connecting flanges. The inside of the buffer cavity (4) is distributed in a streamline shape.
3. The novel forged steel globe valve with a medium buffering function according to claim 2, wherein: The number of the first buffer springs (7) is several, and they are symmetrically distributed in sequence at the upper end of the limiting ring platform (6). The sealing buffer ring (9) is made of rubber material.
4. A novel forged steel globe valve with a medium buffering function according to claim 3, characterized in that: The number of the support screw rods (12) is two, and they are symmetrically distributed in the middle of the upper end of the valve cover (10).
5. A novel forged steel globe valve with a medium buffering function according to claim 4, characterized in that: The lower end of the valve stem (15) passes through the packing gland (11) downward into the inside of the forged steel globe valve body (1).
6. The novel forged steel globe valve with a medium buffering function according to claim 5, characterized in that: The number of the second buffer springs (18) is several, and they are symmetrically distributed in sequence at the inner top of the limiting tube (17). The outer curved surface of the upper end of the limiting column (19) is fitted and movably connected to the inner wall of the limiting tube (17), so that the limiting tube (17) and the second buffer spring (18) are used to elastically buffer and support the limiting column (19).
7. A novel forged steel globe valve with a medium buffering function according to claim 6, characterized in that: The outer end of the valve disc (20) is designed in a streamline shape. The number of the flow guiding grooves (21) is several, and they are symmetrically distributed in sequence at the lower edge of the valve disc (20).