Dual-circulation negative pressure fish tank system

Abstract

The invention discloses a dual-circulation negative pressure fish tank system. The system comprises two normal-pressure cylinders, a negative-pressure cylinder and a micro-nanobubble circulation system; the normal-pressure cylinders are separated from each other and independently arranged, and each normal-pressure cylinder is provided with a filtering circulation system; the negative-pressure cylinder is connected between the two normal-pressure cylinders in a bridge arch shape, and an air exhaust is formed in the top of the negative-pressure cylinder and connected with a vacuum pump; the twotail ends of the negative-pressure cylinder stretch into the two normal-pressure cylinders respectively; the micro-nanobubble circulation system comprises a check valve which is arranged in one normal-pressure cylinder, micro-nanobubble aeration devices arranged outside the two normal-pressure cylinders and a micro-nanobubble generator which is arranged in the other normal-pressure cylinder; the check valve, the micro-nanobubble aeration devices and the micro-nanobubble generator are sequentially connected through pipelines. By means of the dual-circulation negative pressure fish tank system,the dynamic balance of oxygen supply, water circulation and air exhaust can be maintained.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a dual-circulation negative pressure fish tank system. Background technique [0002] With the development of ornamental aquarium technology and the improvement of people's ornamental needs, a new type of ornamental aquarium - negative pressure fish tank was born, which uses the principle of negative pressure to raise the water level, and has the advantages of beautification, fashion, feeding and easy operation. And gradually became popular. [0003] Negative pressure fish tanks need to maintain the balance of oxygen supply, water circulation and air extraction. Some of the existing negative pressure fish tanks do not have water circulation, and some only have water circulation in the lower part of the normal pressure tank, which cannot realize the water circulation of the negative pressure tank body, often resulting in the death of fish due to hypoxia; some use p...

AI Technical Summary

Problems solved by technology

Some of the existing negative pressure fish tanks do not have water circulation, and some only have water circulation in the lower part of the normal pressure tank, which cannot realize the water circulation of the negative pressure tank body, often resulting in the death of fish due to hypoxia; some use pumps to increase oxygen will cause negative pressure. The tank accumulates air bubbles, if the air cannot be properly pumped in time, the water body will often overflow

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