Fully-automatic shell-and-tube type reverse-washing filter and filtering method thereof

Abstract

The invention discloses a fully-automatic shell-and-tube type reverse-washing filter and a filtering method thereof. The fully-automatic shell-and-tube type reverse-washing filter comprises an inlet branched seal head, an outlet branched seal head, a plurality of filtering tube, a steering mechanism and a controller; a water inlet pipeline is arranged at the upper part of the inlet branched seal head; a plurality of water inlet holes are formed in the seal head wall of the lower part of the inlet branched seal head in the circumferential direction uniformly; a dirt discharge pipeline is arranged at the bottom of the inlet branched seal head; a water discharge pipeline is arranged at the lower part of the outlet branched seal head; a plurality of water outlet holes are formed in the seal heal wall of the upper part of the outlet branched seal head in the circumferential direction; a pressure sensor is arranged on each of the water inlet pipeline, the water discharge pipeline and each filtering tube; all the pressure sensors are electrically connected with the controller. The fully-automatic shell-and-tube type reverse-washing filter has large filtering flow, can meet the filtering requirement with filtering precision being 1 to 610 microns and is widely applied; in the process of reversely washing the blocked filtering tube, other filtering tube still can perform filtering operation, so the working efficiency of the filter is improved.

Description

technical field [0001] The invention relates to the technical field of filtering low-viscosity fluids such as water and food, in particular to a full-automatic tubular backwash filter and a filtering method thereof. Background technique [0002] Filtration is under the action of driving force or other external force, liquid (or gas) passes through porous filter media, solid particles, colloids or organic matter, etc., foreign matter in liquid (or gas) is intercepted by filter media, so that solid pollutants and Operation in which liquid (or gas) phases are separated. [0003] The filter cartridge of the filter usually adopts a set of tubular filter members. When filtering, the filtrate is filtered through the filter medium tube. After filtering, the liquid turbidity is low and can meet the water quality requirements. However, when the filtrate passes through the filter medium tube, the Foreign matter, especially particles, will quickly accumulate on the outer surface of the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, to design a fully automatic tubular backwash filter and its filtering method, which solves the problem that the existing filter cannot perform filtering and backwashing operations at the same time, has low filtration precision, and The problem of small amount of pollution

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