Device for wiping off carbon dioxide in water body of fishing industry

Abstract

A device for wiping off carbon dioxide in water body of fishing industry, comprising a body, the upper part of which is provided with an annular water spray device connected with a water inlet; the centre of lower part inside the body is provided with an aerating apparatus connected with a gas inlet; the middle part inside the body is provided with a filler cavity; the top of the body is provided with a gas-water separator and an exhaust mask component; one side of the lower part of the body is provided with an outlet for clean water; and the bottom of the body is provided with an exhaust pipe valve for depositing sewage. The water to be treated in a fish pond or a fish container is transported to the annular water spray device through the water inlet; water flow uniformly sprays to form multilevel mist water curtain along the horizontal diameter of the annular water spray device and sprinkles down; meanwhile air filtered is transported into the aerating apparatus through the gas inlet to release the micro bubbles uniformly; top-to-bottom water flow closely contacts with the gas flow moving in the opposite direction and realizes gas exchange; and a secondary action is carried out between ascending gas flow and water curtain, and carbon dioxide is discharged outside through a vent hole on the exhaust mask, thus realizing the purpose of the invention.

Description

technical field [0001] The present invention relates to a carbon dioxide (CO 2 ), especially relates to a (factory) high-density fish farming system, a collection and transportation system for commercial fish and juvenile fish fry, and a temporary maintenance and preservation system for various fishes, etc. carbon dioxide (CO 2 ) removal device. Background technique [0002] Scientists have studied fish and found that high concentrations of carbon dioxide are very harmful to the growth and survival of fish. When the concentration exceeds a certain value, it will produce toxic effects and cause fish to suffocate and die. Because fish and bacteria will Carbon dioxide is brought into the water body through respiration and other life activities, causing the concentration of carbon dioxide in the blood of fish to increase, resulting in a decrease in the oxygen-carrying capacity of fish blood, thus affecting the normal life activities of fish. [0003] In the field of modern fi...

AI Technical Summary

Problems solved by technology

However, in the above-mentioned process of industrialized fish farming, transportation of fresh and live aquatic products, and fish preservation and temporary breeding, due to the high degree of fish density, the excrement produced by fish life activities and the remaining bait will be produced due to biochemical reactions. Carbon dioxide is continuously dissolved into the water body. As time goes by, the concentration of carbon dioxide in the water body will rise to a high level, unless targeted water treatment methods and reliable equipment are installed to remove carbon dioxide from the above water body in a timely and effective manner. Otherwise, it will cause fish poisoning reaction, and even unnecessary fish death accidents.

[0004] In fact, in some recirculating aquaculture systems, it is because the concentration of carbon dioxide in the fish farming water is too high and its alkali elimination effect makes the PH value drop too fast, seriously destroying the acid-base balance of the water body, and causing the recirculating water treatment system to paralyze ( e.g. biofilter failure) and mass fish kills

[0005] When the fish farming density is changed from 15 to 30kg / m in traditional technology 3 60~100kg / m to modern technology 3 At the time of development, and when the ratio of live fish to fish and water was as high as 1:2, most people used pure oxygen to supply oxygen. At this time, if they wanted to quickly remove a large amount of carbon dioxide from the aquaculture water, the traditional aeration technology had failed. Therefore, there is a special need for a carbon dioxide removal device to effectively remove carbon dioxide in fishery waters

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