Three-piece type multidirectional cut-off quick-connection ball valve

Abstract

The invention discloses a three-piece type multidirectional cut-off quick-connection ball valve, and belongs to the field of quick-connection ball valves. According to the three-piece type multidirectional cut-off quick-connection ball valve, when the ball valve needs to be replaced, a push plate can block through holes of a conveying pipe and an auxiliary quick joint to prevent a medium in the conveying pipe from leaking out, a spherical pad arranged on the surface of the push plate can effectively reduce scouring of the medium to a main quick joint and the push plate, the service life of a limiting sliding rod and the push plate is prolonged, reinforcing fibers located in a rubber spherical surface can provide support, a whole structure of the spherical pad is not prone to collapse, andelastic fibers located at the outer side of the rubber spherical surface can play a flow dividing role. The medium does not easily form long-time directional scouring on the surface of the rubber spherical surface, maintenance personnel can conveniently and quickly replace the ball valve, a large amount of materials conveyed in the conveying pipe are not easily leaked, maintenance environment pollution is not easily caused, normal work of the maintenance personnel is not easily influenced, and danger is not easily caused to the life health of the maintenance personnel.

Description

technical field [0001] The invention relates to the field of quick-connect ball valves, in particular to a three-piece multi-directional cut-off quick-connect ball valve. Background technique [0002] Three-piece ball valve and gate valve belong to the same type of valve, the difference is that its closing part is a sphere, and the sphere rotates around the centerline of the valve body to achieve opening and closing. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of media. Three-piece ball valve is a new type of valve that is widely used. [0003] The three-piece ball valve has the following advantages: 1. The fluid resistance is small, and its resistance coefficient is equal to that of the pipe section of the same length; 2. The structure is simple, the volume is small, and the weight is light; 3. It is compact and reliable, and the sealing surface material of the ball valve is widely used. It has good performance and has bee...

AI Technical Summary

Problems solved by technology

[0005] When the ball valve fails and cannot be cut off, the ball valve needs to be replaced, and the delivery pipeline is usually shut down, and then the ball valve is replaced. However, the residual delivery liquid in the delivery pipeline is easy to leak, resulting in waste. For some highly corrosive or irritating substances, it is easy to cause pollution to the maintenance environment, affect the normal work of maintenance personnel, and even cause danger to the health of maintenance personnel.

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