Multi-way rotary valve

Abstract

The invention discloses a multi-way rotary valve which comprises a valve body, a valve cover, a rotating shaft and a driving device, a plurality of input ports, a mixed output port and a single output port are formed in the valve body, and a lower positioning shaft hole is formed in the valve body; the valve deck is detachably installed on the valve body, and angle type flow channels used for being communicated with the input ports in a one-to-one correspondence mode are formed in the valve deck. The valve cover is provided with an upper positioning self-lubricating bearing hole; a runner in the rotating shaft is communicated with the angle runner of the valve cover, and the lower end of the rotating shaft is rotationally arranged in the lower positioning shaft hole; and a driving device arranged on the valve cover is connected with the rotating shaft through a valve rod and drives the rotating shaft to rotate. According to the multi-way rotary valve, the upper end and the lower end of the rotary shaft are connected with the upper self-lubricating bearing and the lower positioning shaft hole which can be positioned in the radial direction respectively, precision is improved, meanwhile, friction force of the rotary shaft is reduced, the valve rod is prevented from bearing radial force, the radial and axial load bearing capacity of the rotary shaft is improved, and the service life of the multi-way rotary valve is prolonged.

Description

technical field [0001] The invention relates to the technical field of multi-way valves, in particular to a multi-way rotary valve. Background technique [0002] Valves are pipeline accessories used to open and close pipelines, control pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. The valve is a control component in the fluid delivery system, which has functions such as cut-off, adjustment, flow diversion, reverse flow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. [0003] A type of valve commonly used in oil field metering oil well production is the multi-wa...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the load capacity of the valve core of the existing multi-way valve is weak, and it is easy to cause the deformation of the connecting rod or the locking of the rotating shaft of the valve core, which affects its service life.

Images