Mixer capable of adjusting foam liquid ratio

Abstract

The invention discloses a mixer capable of adjusting foam liquid ratio. The mixer comprises a mixing pipe, a first pipeline, a second pipeline, a hydraulic film actuator, a control valve, a support and an upper end adjusting module. The upper end adjusting module, the hydraulic film actuator, the support, the control valve and the mixing pipe are sequentially connected from top to bottom; the control valve comprises a valve body, a valve seat, a valve rod, a valve clack and a middle partition layer; the hydraulic film actuator comprises an actuator upper shell, an actuator lower shell, a rubber thin film, a thin film pressing sleeve, a thin film lower support, an actuating mechanism stepped rod, a packing threaded sleeve, a pressing sleeve nut and a packing box; the upper end adjusting module comprises a fixing flange, a flange end cover, a valve cover, an adjusting spring, a guide sleeve, an adjusting spring upper support, an adjusting spring lower support, an adjusting screw and a locking nut. The design of the hydraulic film actuator is capable of solving a problem of the mixing ratio of the foam liquid effectively solved, controlling the mixing ratio to be 3%-6%, and achievinghigh reliability and larger foam liquid storage capacity.

Description

Technical field [0001] The invention relates to the technical field of mixers, and more specifically, to a mixer capable of adjusting the ratio of foam liquid. Background technique [0002] The foam liquid proportional mixer is the core equipment and key component of the foam fire extinguishing system. It is a kind of mixing the concentrated foam liquid stored in the foam liquid storage tank and the flowing water of the connected device according to the required ratio to form an ideal Foaming device for fire-extinguishing foam fire-fighting fluid. Its purpose is to continuously produce a mixture of foam liquid that meets the requirements and be used in fire-fighting foam extinguishing operations and fire prevention. The performance of the foam extinguishing system is directly related to the success or failure of the foam fire extinguishing system. The foam fire extinguishing system has the advantages of reliable installation, economical and practical, and high fire-fighting effi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of unstable working mixing ratio, large pressure loss, low reliability and insufficient foam liquid storage caused by the mixing ratio range of more than 6% in the existing foam proportioning mixer, and proposes an adjustable foam The liquid ratio mixer not only greatly improves the stability of the working mixing ratio and reduces the pressure loss, but also can effectively solve the problem of the mixing ratio, so that the mixing ratio is controlled at 3% to 6%, compared with the positive pressure type Type foam proportional mixer with higher reliability, larger foam liquid storage

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