Rainwater biological filtration equipment

Abstract

The invention discloses rainwater biological filtration equipment which structurally comprises a motor, a filter tank, a differential pressure controller, a water inlet pipe, a purified water discharge pipe and a blow-off pipe. The motor is fixedly installed at the top of the filter tank, and the differential pressure controller is arranged at the lower end of the filter tank. Rainwater enters thetank body and is in contact with a vegetation layer for purification, sand grains in the rainwater are blocked through a filter element, and purified water flows from a telescopic hose and is finallydischarged from the interior of the purified water discharge pipe. The motor drives a rotating shaft to rotate, a cleaning plate scrapes the inner wall of the filter element, sand grains blocked in pores of the filter element are extruded out through scraping strips, and the situation that rainwater difficultly penetrates through the filter element is avoided. When rainwater is discharged in fromthe water inlet pipe, an elastic rod is impacted, so that a pushing ball is driven to abut against and extrude the two ends of the outer side of the filter element, the fluidity of the rainwater in the filter element is improved, meanwhile, part of sand particles adsorbed in pores of the filter element are shaken off, and the interior of the pores of the filter element is prevented from being blocked.

Description

technical field [0001] The invention relates to the field of biological filtering equipment, and more specifically, relates to a rainwater biological filtering equipment. Background technique [0002] The use of rainwater is divided into indirect and direct. The direct use is to collect and store rainwater, and then purify the rainwater through biological filtration equipment, and then directly use it for washing roads, greening, car washing, flushing toilets, etc. The internal setting of biological filtration equipment There are vegetation and filter elements, and the sand particles can be intercepted through the filter elements, but because the filter elements inside the biological filtration equipment are in a static state, when the sand content in the rainwater is high, the sand particles are easy to block the pores of the filter elements, resulting in the rainwater in the biological filtration. The fluidity inside the equipment decreases, and it is difficult for rainwat...

AI Technical Summary

Problems solved by technology

[0002] The use of rainwater is divided into indirect and direct. The direct use is to collect and store rainwater, and then purify the rainwater through biological filtration equipment, and then directly use it for washing roads, greening, car washing, flushing toilets, etc. The internal setting of biological filtration equipment There are vegetation and filter elements, and the sand particles can be intercepted through the filter elements, but because the filter elements inside the biological filtration equipment are in a static state, when the sand content in the rainwater is high, the sand particles are easy to block the pores of the filter elements, resulting in the rainwater in the biological filtration. The fluidity inside the equipment decreases, and it is difficult for rainwater to pass through the filter element, causing the sand particles in the rainwater to be easily suspended inside the biological filtration equipment, causing the sand particles in the rainwater to be directly discharged from the water purification outlet along with the rainwater

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