Vertical type high pressure full-automatic backwashing filter

Abstract

The invention discloses a vertical type high pressure full-automatic backwashing filter, comprising a liquid inlet, a barrel body, front and back cover plates, a filter screen, a liquid outlet and a sewage chamber, wherein the filter screen is distributed in the barrel body in a cylindrical shape; the inner side of the filter screen is provided with dirt suction nozzles; the outer side of the filter screen is provided with cleaning nozzles; the dirt suction nozzles are communicated to the sewage chamber through dirt suction branch pipes; the upper end of the barrel body is provided with a clean water chamber; and the clean water chamber is fixed on the back cover plate and is communicated to the cleaning nozzles through cleaning branch pipes. The vertical type high pressure full-automatic backwashing filter provided by the invention clean impurities at the inner side of the filter screen through water flow sprayed by the cleaning nozzles and can achieve the object of cleaning without disassembly. The cleaning branch pipes and the dirt suction pipes can be rotated for 360 degrees and make reciprocating motion, so that the filter screen can be cleaned thoroughly without dead angle and a good cleaning effect can be achieved.

Description

technical field [0001] The invention relates to a filter structure, in particular to a filter capable of automatic backwashing. Background technique [0002] The protection and conservation of water resources are closely related to people's lives, and the reuse of water resources is particularly important. Industrial water, air-conditioning cooling circulating water, automobile circulating water, boiler water, bath, well water, river water, etc. all need to be filtered, which is the only way to reuse water resources. There are few traditional methods of filtering with chemical substances. Most of them use physical purification method filters to remove impurities in water through the principle of mechanical filtration. Mechanical filters are the most commonly used devices. In traditional mechanical filters, the medium is filtered from the inner cavity of the filter screen through the filter holes to the outside of the filter screen. During this process, impurities are depos...

AI Technical Summary

Problems solved by technology

In traditional mechanical filters, the medium is filtered from the inner cavity of the filter screen through the filter holes to the outside of the filter screen. During this process, impurities are deposited on the bottom of the filter screen or attached to the inner wall of the filter screen. In the filter hole, with the increase of the filter medium, more and more impurities are attached and embedded in the filter screen, until it is blocked, and secondary pollution occurs at the same time, the filter screen must be cleaned or replaced

To solve this problem, the most primitive method is to take out the filter element for manual cleaning, the workload is heavy, the cleaning quality is not guaranteed, and the filtration process is discontinuous

In order to reduce the number of cleanings, there are also filters with smaller meshes, but the filtering accuracy is low and the filtering effect is poor.

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