A pumpless flushing upflow filter and its water filtration method

Abstract

The invention belongs to the technical field of water filtration, and in particular relates to a pumpless flushing upstream filter tank and a water filtration method thereof. The filter tank includes upper and lower clear water bins and filter bins. The top of the filter bin is provided with a clear water overflow port connected with the clear water bin. The space of the filter chamber is respectively connected with the bottom of the water inlet pipe and the bottom of the flushing pipe, and the top of the flushing pipe is connected with the clean water chamber; the filter chamber is also provided with a sewage outlet, which is closed by a valve. The invention has a simple structure, relies on the improved device structure to realize water inflow from top to bottom relative to the filter layer, and fully exerts the utilization rate of the filter material.

Description

Technical field [0001] The invention belongs to the field of water filtration technology, and more particularly to a non-pump rinsing upflow filter and a water filtration method thereof. Background technique [0002] Existing urban water supply or other raw water filtration requires a filter, including a pressure filter, a valve filter, an iris filter, and a V-type filter. Regardless of which filter, quartz sand is used as a filter material of the filter layer, and the raw water is used to pass through the filter layer from the upper to the bottom direction, and the sandstone layer of the formation of the filter layer is subjected to a sand. Fine sand, medium sand and coarse sand distribution, due to the uppermost layer of lashes, the minimum, most dense, which causes the impurities that need to be trapped in the raw water, which is basically completely trapped in the uppermost layer of sand, resulting in the most The upper layer of small thickness of the abrasive is saturated in...

AI Technical Summary

Problems solved by technology

At the same time, the flushing operation of the filter in the prior art requires the construction of a special clear water pool and a flushing water pump pump room. Generally speaking, no less than two high-power water pumps need to be installed and equipped with corresponding power supply settings and large-diameter flushing pipes and valves.

This causes the filter in the prior art to have the following defects: 1) the filter cycle is short, and the filter material cannot be fully utilized; 2) the washing operation is frequent, which consumes water and electricity; 3) the overall equipment occupies a large area and requires a large investment Many and high operation and maintenance costs

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