Spiral plate type filter system and method

Abstract

The invention discloses a spiral plate type filter system and method. The filter system comprises a spiral plate filter core, a check valve, a filter shell, a controller, a pure water electromagnetic valve, an unfiltered water electromagnetic valve, a sewage disposal electromagnetic valve, a backwash electromagnetic valve and an air pump; the controller is connected with the pure water electromagnetic valve, the unfiltered water electromagnetic valve, the sewage disposal electromagnetic valve, the backwash electromagnetic valve and the air pump; the unfiltered water electromagnetic valve and the backwash electromagnetic valve are connected with the air pump. According to the spiral plate type filter system and method, the material roles that a metal film filter can be conveniently welded and randomly bent and is high in filter precision are fully played; the filter system is simple in processing technology, capable of easily achieving automatic process production, high in processing efficiency and low in processing cost; the filter is high in strength, suitable for being used in a large-differential-pressure or high-temperature environment, high in unit volume filter efficiency and large in filter amount, and only accounts for one fifth of the size of a common multi-pipe filter for achieving the same filter amount.

Description

technical field [0001] The invention belongs to the technical field of filters, and relates to a filter system, in particular to a spiral plate filter system; meanwhile, the invention also relates to a spiral plate filter method. Background technique [0002] The filter is a kind of equipment widely used in daily life and industrial process. The key part of the filter is the filter element. The structural forms of the filter elements currently on the market are cylindrical (including conical, folded), flat Mode. For simple coarse filtration, there are many flat filter elements or single-tube filter elements, and for fine filtration, multi-tube filters are used, that is, the structural form of the filter composed of circular tube filter elements installed in a large container. Its structure is similar to Shell and tube heat exchanger. The filter equipment with this structure has the advantages of independent filter elements, which can be replaced separately and conveniently...

AI Technical Summary

Problems solved by technology

[0005] (3) The multi-tubular filter has many seams, and it is not easy to adopt a processing method. If high-precision robot technology is used, the investment cost is very high;

[0006] (4) When the filter tube is large, it is necessary to separately install a metal frame to increase the strength, which will further increase the cost;

[0007] (5) If it is a folded filter element, although the filtration area per unit volume is increased, it is very difficult to backwash, and generally it can only be used once, and it can only be replaced when the temperature reaches a certain level.

[0010] (1) The processing technology is complex and there are many consumables, it is not easy to use automatic processing, the cost is high and the output per unit time is low;

[0011] (2) There are many seams, not only the processing process is complicated, but the seams will also affect the filtration flow area;

[0012] (3) The unit filtration volume is large and the filtration efficiency is low;

[0013] (4) The energy required for backwashing is large, and the backwashing system is complex

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