Ball valve capable of eliminating cavitation

A ball valve and cavitation technology, applied to valve details, valve devices, cocks including cut-off devices, etc., can solve problems such as damage to valve internals, eliminate cavitation, improve the working environment, and reduce noise levels and vibration intensity Effect

Pending Publication Date: 2017-09-01
CHANGZHENG ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of damage to the internal parts of the valve caused by cavitation in the existing ball valve, the present invention provides a ball valve that eliminates cavitation, which can not only prevent cavitation, eliminate noise and vibration, but also reduce the energy consumption of the valve and improve the performance of the valve. The working environment of the operator can effectively eliminate cavitation when the opening is small, and can meet the greater flow requirements of the valve when the cavitation is not obvious when the opening is large, and the structure is simple, easy to process, easy to assemble, and energy-saving. Efficient features

Method used

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  • Ball valve capable of eliminating cavitation
  • Ball valve capable of eliminating cavitation
  • Ball valve capable of eliminating cavitation

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0035] figure 1 It is a schematic diagram of the front cross-sectional structure of a ball valve that eliminates cavitation in the present invention in a fully open state, figure 2 It is a schematic diagram of the cross-sectional structure of a ball valve that eliminates cavitation in the present invention in a fully open state, image 3 It is a schematic diagram of the front sectional structure of a ball valve that eliminates cavitation in the fully closed state of the present invention, Figure 4 It is a schematic diagram of the cross-sectional structure of a ball valve that eliminates cavitation in the present invention in a fully closed state, Figure 5 It is a schematic diagram of the cross-sectional structure of a cavitation-eliminating ball val...

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Abstract

The invention provides a ball valve for eliminating cavitation, relates to the field of pipeline control valves, and is used for solving the problem of damage to internal parts of the valve caused by the cavitation phenomenon in the existing ball valve. The ball valve for eliminating cavitation includes a first valve body part, a second valve body part, a valve stem, a ball, a valve seat, a spring and a fixed shaft, and also includes a spherical wall plate with a through hole, and the spherical wall plate partially covers on the outlet flow path of the sphere. The ball valve for eliminating cavitation can effectively eliminate cavitation when the opening is small, and can meet the greater flow requirements of the valve when the cavitation is not obvious when the opening is large, and the structure is simple, easy to process, and easy to assemble. Energy-saving and high-efficiency features.

Description

technical field [0001] The invention relates to the field of pipeline control valves, in particular to a ball valve for eliminating cavitation. Background technique [0002] Ball valves are widely used in coal chemical, petrochemical, iron and steel, metallurgy and air separation industries due to their advantages such as small fluid resistance, large flow capacity, fast switching, good sealing performance, long life, and convenient air and electric control. [0003] However, the ball valve has the characteristics of large flow capacity and rapid switching. Especially during the opening and closing process of the valve, when the pressure difference on both sides of the valve is large, the flow rate of the fluid medium will be high, and cavitation is prone to occur. When the high speed passes through the flow channel of the ball valve, due to the decrease of the pressure of the liquid fluid, the gas is precipitated to generate bubbles. When the pressure of the bubbles reaches...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K47/02F16K47/08F16K5/06
CPCF16K47/02F16K5/0605F16K47/08
Inventor 赵海燕刘际王路敏王松刘成钢
Owner CHANGZHENG ENG
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