Fully-communicated four-way valve

Abstract

The invention discloses a fully-communicated four-way valve. The fully-communicated four-way valve comprises a valve body, a valve core, a valve rod, a valve seat, and the valve rod and four valve ports, wherein the valve core is arranged in the valve body; the valve rod is connected with the valve core; the valve rod can lead the valve core to rotate along a vertical axis; the valve body is provided with three valve ports: a first valve port, a second valve port and a third valve port; central lines of the first to third valve ports are arranged on the same plane A; included angles among the central lines of the first to third valve ports are 120 degrees; the valve seat is provided with a fourth valve port; the direction of a central line of the fourth valve port is vertical to the plane A; the valve core is provided with two mutually unconnected fluid channels: a channel B and a channel C; a central line of the channel B and the plane A are arranged on the same plane; the first valve port and the second valve port on the valve body are connected; the channel C is vertical to the plane A; and the third valve port on the valve body and the fourth valve port on the valve seat are communicated.

Description

technical field [0001] The invention relates to a four-way valve for conveying gas, liquid or gas-liquid mixture, gas-solid (fine solid particle) mixture, liquid-solid (fine solid particle) mixture and other flow media, especially for industrial process control function Four-way valve. Background technique [0002] In the industrial process, four-way valves are often used. The four-way valve generally has a cross row, and four fluid inlets and outlets (referred to as valve ports) on a plane, respectively connected to four fluid pipelines. The spool of the valve has two fluid passages that are not connected to each other. These two fluid passages are on the same plane and are respectively connected to the four valve ports. The four-way valve can simultaneously control the conduction of four fluid pipelines. , to control the flow direction of the fluid medium in the pipeline, the use of the four-way valve saves the amount of the two-way valve and reduces the manufacturing cos...

AI Technical Summary

Problems solved by technology

However, since the four fluid inlets and outlets (referred to as valve ports) of the existing four-way valve are all on the same plane, they are plane conduction, which causes the existing four-way valve to only realize the conduction of two adjacent two fluid line

The two opposite pipelines cannot be directly connected. In this case, only two three-way valves can be used to solve the problem of full connection.

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