A nanobubble-based sewage treatment device

Abstract

The invention discloses a nano-bubble-based sewage treatment device, comprising a rigid inner trachea, one end of the rigid inner trachea is connected to an air source, and the other end is sealed; an elastic micro-nano aeration pipe is sleeved on the outer side of the rigid inner trachea The two ends of the elastic micro-nano aeration tube are airtightly connected to the outer side of the rigid inner trachea; the side walls of the rigid inner trachea corresponding to the elastic micro-nano aeration tube are provided with a number of first ventilation holes; the outer side of the rigid inner trachea is sleeved with hard Holding tube, both ends of the hard holding tube are fixedly connected to the outside of the hard endotracheal tube, the elastic micro-nano aeration tube is located in the hard holding tube, and there is a gap between the elastic micro-nano tube and the hard holding tube; the hard holding tube A number of ventilation channels are arranged; the outer side of the hard holding pipe is covered with a filter layer; the present invention is provided with a hard holding pipe on the outside of the micro-nano aeration pipe to limit the degree of expansion and expansion thereof, so as to improve the uniformity of the expansion of the micro-nano aeration pipe. Improve the aeration effect; in addition improve the uniformity of the air supply, and reduce clogging.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment equipment, in particular to a sewage treatment device based on nano-bubble. Background technique [0002] A blower or an air compressor is used to transport the air into the water through the aeration pipe, and then disperse and escape in the form of bubbles, and the oxygen is dissolved into the water at the gas-liquid interface, which is a common method to provide dissolved oxygen in the water. [0003] Existing aeration tubes are divided into perforated aeration tubes and micro-nano aeration tubes. The perforated aeration pipe is a small hole with a diameter of millimeters or centimeters on both sides of the aeration pipe. During aeration, gas is ejected from the small holes on both sides to achieve the purpose of oxygenation and hydraulic disturbance; but the pores of the perforated aeration pipe The larger the pore size, the larger the bubbles formed, which is not conducive to the ma...

AI Technical Summary

Problems solved by technology

In actual operation, too much pressurization of the micro-nano aeration tube will cause excessive expansion of the tube body, reducing the service life or even direct damage; too little pressurization will lead to poor aeration effect

And because the resistance pressure inside the pipeline is different, under the same pressure, the aeration effect of the micro-nano aeration tube is quite different.

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