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CN-224214712-U - Alloy pair wing butterfly valve

CN224214712UCN 224214712 UCN224214712 UCN 224214712UCN-224214712-U

Abstract

The utility model discloses an alloy wing-aligning butterfly valve, belongs to the technical field of butterfly valves, and solves the problems that when the butterfly valve is closed, a relatively obvious water hammer phenomenon occurs, the whole butterfly valve vibrates, and the internal hard sealing part of the butterfly valve is damaged by collision. Including the valve body, rotate two sections valve rods of connecting in the valve body and fixed connection in the valve plate between two sections valve rods, there is the buffering space one side of valve plate, the opening in buffering space is sheltered from through the elasticity blocking piece, just the buffering space intussuseption is filled with damping fluid. When the valve plate is closed in the valve body, the backflow liquid impacts the elastic blocking piece to enable the elastic blocking piece to collide with the partition plate and elastically deform, so that damping liquid in the cavity is excited to flow. The damping liquid slowly flows through the side through holes of the side elastic sheets to realize damping of the elastic blocking sheets, and meanwhile, the damping liquid is further damped through the vertical through holes of the horizontal elastic sheets, so that liquid backflow impact is effectively relieved, and the water hammer effect is slowed down.

Inventors

  • ZHU WEI
  • Ma Saijiang
  • YANG CHAO
  • Quan Shengtian
  • JIN ZHIXIAO

Assignees

  • 浙江冠正阀门股份有限公司

Dates

Publication Date
20260508
Application Date
20250512

Claims (7)

  1. 1. The utility model provides an alloy is to wing butterfly valve, its characterized in that includes valve body (1), rotates two sections valve rod (6) of being connected in valve body (1) to and valve plate (5) between two sections valve rod (6) of fixed connection, there is the buffering space one side of valve plate (5), the opening in buffering space is blocked through elasticity barrier piece (15), just it has damping fluid to fill in the buffering space.
  2. 2. The alloy wing-aligning butterfly valve according to claim 1, wherein the valve rod (6) is fixedly connected with a valve tube (7), a channel for the valve tube (7) to penetrate through and be communicated with the buffer space is formed in the top surface of the valve plate (5), a circle of connecting ring (14) is fixedly connected to the end surface of the valve plate (5), and the elastic blocking piece (15) is fixedly connected to the inner ring of the connecting ring (14).
  3. 3. An alloy pair-wing butterfly valve according to claim 2, characterized in that the connection ring (14) is fixedly connected with the valve plate (5) by means of a connection bolt (16).
  4. 4. An alloy pair-wing butterfly valve according to claim 2, characterized in that a plurality of baffles (10) are fixedly connected to the valve plate (5) and located in the buffer space, and the baffles (10) are used for abutting against the elastic blocking piece (15).
  5. 5. The alloy wing butterfly valve according to claim 4, wherein cavities (11) are formed between adjacent partition boards (10) and between the partition boards (10) and the top and bottom surfaces of the buffer space, damping pieces are arranged in the cavities (11) and in the valve tube (7), and the damping pieces have elastic deformation performance.
  6. 6. The alloy wing butterfly valve according to claim 5, wherein the damping member located in the valve tube (7) is a horizontal elastic sheet (8), a vertical through hole (9) is formed in the thickness direction of the horizontal elastic sheet (8), the damping member located in the cavity (11) is a side elastic sheet (12), and a side through hole (13) is formed in the thickness direction of the side elastic sheet (12).
  7. 7. The alloy wing-aligning butterfly valve according to claim 1, further comprising a rotating seat (3) fixedly connected to the valve body (1) and communicated with the interior of the valve body, and a gear motor (4) fixedly connected to the rotating seat (3), wherein one end of the valve rod (6) penetrates through the valve body (1) and is sealed by the end cover (2), the other end of the valve rod (6) is rotatably connected to the rotating seat (3), and an output shaft of the gear motor (4) is in transmission connection with the valve rod (6).

Description

Alloy pair wing butterfly valve Technical Field The utility model relates to the technical field of butterfly valves, in particular to an alloy wing-aligning butterfly valve. Background Butterfly valves are rotary valves that occupy a space in a fluid control system with their unique design and operating efficiency. The main components of the butterfly valve comprise a valve body, a butterfly plate, a shaft lever, a sealing piece and a driving mechanism. The valve body is the main structure of the valve and is usually made of a sturdy and durable material, such as cast iron, carbon steel or alloy steel, to accommodate different media and pressure levels. Butterfly plates are a critical component of valves that control the flow of fluid through a rotational motion, and the materials and design of the butterfly plates can be tailored to specific application requirements. The working principle of the butterfly valve is to adjust the flow of fluid based on the rotation of the butterfly plate. The rotation angle of the butterfly plate is proportional to the flow rate of the fluid, thereby achieving accurate flow control. When the butterfly plate is fully closed, it is in close contact with the valve seat, creating a seal against fluid passage, and when the butterfly plate is fully open, it is nearly parallel to the pipe axis, providing minimal fluid resistance. When the butterfly plate, namely the valve plate, closes the valve body, fluid can directly impact the valve plate, and for the butterfly valve, the phenomenon can be linked in a clear mode at present, and in this way, the butterfly valve can have obvious water hammer phenomenon when being closed, so that the whole butterfly valve vibrates, and the hard sealing part inside the butterfly valve is damaged by collision. Therefore, an alloy pair-wing butterfly valve is provided for solving or alleviating the problems. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides an alloy pair-wing butterfly valve. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides an alloy is to wing butterfly valve, includes the valve body, rotates two sections valve stems of connecting in the valve body and fixed connection in the valve plate between two sections valve stems, there is the buffering space one side of valve plate, the opening in buffering space is sheltered from through the elasticity blocking piece, just the buffering space intussuseption is filled with damping fluid. Preferably, the valve rod is fixedly connected with a valve pipe, a channel for the valve pipe to penetrate through and be communicated with the buffer space is formed in the top surface of the valve plate, a circle of connecting ring is fixedly connected to the end surface of the valve plate, and the elastic blocking piece is fixedly connected to the inner ring of the connecting ring. Preferably, the connecting ring is fixedly connected with the valve plate through a connecting bolt. Preferably, a plurality of clapboards positioned in the buffer space are fixedly connected to the valve plate, and the clapboards are used for abutting against the elastic blocking piece. Preferably, cavities are formed between adjacent partition boards and between the partition boards and the top and bottom surfaces of the buffer space, damping pieces are arranged in the cavities and the valve pipe, and the damping pieces have elastic deformation performance. Preferably, the damping piece located in the valve pipe is a horizontal elastic piece, a vertical through hole is formed in the thickness direction of the horizontal elastic piece, the damping piece located in the cavity is a side elastic piece, and a side through hole is formed in the thickness direction of the side elastic piece. Preferably, the valve further comprises a rotating seat fixedly connected to the valve body and communicated with the interior of the valve body, and a gear motor fixedly connected to the rotating seat, one end of the valve rod penetrates through the valve body and is sealed through the end cover, the other end of the valve rod is rotationally connected to the rotating seat, and an output shaft of the gear motor is in transmission connection with the valve rod. The utility model has the following beneficial effects: When the valve plate seals the valve body, the back flowing liquid impacts on the elastic blocking sheet, so that the elastic blocking sheet is abutted against the partition plate and is elastically deformed, damping liquid in the cavity is driven to flow slowly through the side through holes in the side elastic sheet, the elastic blocking sheet is damped, and then the damping liquid is further damped through the vertical through holes of the horizontal elastic sheet, so that impact during liquid back flowing is relieved, and influence caused by water hammer is relieved. Drawings FIG. 1 is a schemati