Four-channel reversing and automatic throttling plunger valve

Abstract

The invention discloses a four-channel reversing and automatic throttling plunger valve. The four-channel reversing and automatic throttling plunger valve comprises a valve body, a plunger body and avalve base plate, the valve body is of a cross-shaped four-way structure, the valve body is composed of a first channel, a second channel, a third channel, a fourth channel and a cylinder block, the plunger body is provided with a first U-shaped channel and a second U-shaped channel in the radial direction, the first U-shaped channel and the second U-shaped channel are not communicated, and the plunger body is arranged in the cylinder block; and the valve base plate is fixedly installed at the bottom of the valve body, a cylindrical guide sleeve is arranged at the top of the valve base plate,a containing space is arranged between the plunger body and the valve base plate, and the valve channels are communicated with the containing space through feedback pipes. According to the four-channel reversing and automatic throttling plunger valve, the feedback pipes are arranged on the valve body, the flowing speed and the pressure of the valve can be adjusted automatically by the feedback pipes at a valve inlet according to the pressure and flow of fluid, the valve can be automatically closed by the feedback pipes at a valve outlet when it is detected that the fluid flows back, and the stopping function is achieved.

Description

technical field [0001] The invention relates to the technical field of valves for food and beverage filling technology, in particular to a four-channel reversing and automatic throttling plunger valve. Background technique [0002] Valves are pipeline accessories used to open and close 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. [0003] 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. [0004] In terms of technical suppo...

AI Technical Summary

Problems solved by technology

[0008] The existing four-way valves can only be connected in twos and cut off in twos, but cannot realize the mutual conversion of the flow directions of the four channels to achieve simultaneous connection and simultaneous closure.

Moreover, the existing four-way valve cannot self-adjust the flow rate and cannot automatically shut off when backflow occurs.

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