A Flow Regulating Proportioning Valve and Its Application

Abstract

The invention relates to a proportioning valve with the flow regulation function and application thereof. The proportioning valve with the flow regulation function comprises a case body. A valve cavity is formed in the case body. The case body is provided with a fluid A inlet, a fluid B inlet and a mixed fluid C outlet, wherein the fluid A inlet, the fluid B inlet and the mixed fluid C outlet are communicated with the valve cavity. A central valve body and a central valve core are arranged in the valve cavity. The central valve core comprises a mixing cavity. The central valve body is provided with an A valve body inlet and a B valve body inlet. The central valve core is provided with an A valve core inlet and a B valve core inlet, wherein the A valve core inlet and the B valve core inlet are communicated with the mixing cavity. Through angle rotation of the central valve core in the central valve body, the through-flow sectional area of the A valve core inlet and the A valve body inlet and the through-flow sectional area of the B valve core inlet and the B valve body inlet can be regulated, then proportioning of fluid A and fluid B can be regulated, and the outflow volume of mixed fluid C can be regulated through linear displacement of the central valve core in the central valve body. According to the invention, the volume and the proportion of the mixed fluid can be set freely, the outflow volume of the mixed fluid can be regulated, the efficiency is higher and the timeliness is high.

Description

technical field [0001] The invention relates to a flow regulating proportional valve and its application, belonging to the technical field of valves. Background technique [0002] At present, it is often encountered in the production line of the factory that the A and B solutions need to be mixed in proportion. The traditional process is to mix the two solutions in a large vessel in advance according to the volume ratio, and slowly drop them in when they are ready to use. This traditional process has the following disadvantages: (1) if the solution is volatile, it is not conducive to the mixing operation in advance, and it will also cause bodily harm to the operator; (2) if the A and B solutions can produce chemical reactions, the traditional process The real-time performance of the method is poor, and the use performance of the mixed solution cannot be achieved; (3) the mixed solution needs to be manually replenished and filled, which is easy to cause human error and affect...

AI Technical Summary

Problems solved by technology

This traditional process has the following disadvantages: (1) if the solution is volatile, it is not conducive to the mixing operation in advance, and it will also cause bodily harm to the operator; (2) if the A and B solutions can produce chemical reactions, the traditional process The real-time performance of the method is poor, and the use performance of the mixed solution cannot be achieved; (3) the mixed solution needs manual replenishment and filling, which is easy to cause human error and affect product quality; (4) this method consumes a lot of manpower and material resources, and has poor reliability

[0003] At present, adopting liquid mixing proportioning valve is a commonly used solution, such as the more commonly used water mixing valve, but there are some problems in the existing water mixing valve: (1) the existing water mixing valve adopts thermal elements to Cold water and hot water are mixed to ensure a constant temperature of the outlet water. The water mixing valve adopts a check valve to prevent water from passing through. The structure is complex, the cost is high, and it is prone to failure; control, rather than the control of the solution ratio; (3) the existing mixing valve controls the ratio adjustment and flow adjustment by using the same operating handle in different directions of movement, and this linkage method increases the difficulty of use by the operator; (4) The existing mixing valve sets the valve at the rear end of the mixing chamber, which leads to the problem of cross-flow of the A and B solutions, which easily causes the solutions to undergo chemical reactions in advance to produce crystalline solids, resulting in blockage of the valve core and pipes (5) The existing mixing valve adopts a circular valve port, the output flow of this form of valve port has a nonlinear relationship with the displacement of the valve core, and the operator cannot accurately control the mixing ratio of the output solution, let alone set the scale indication

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