Highly effective oxygen dissolving device for fishpond circulating water

Abstract

The invention provides a fishpond circulating water efficient oxygen-dissolving device, which is composed of a tube body, an oxygen flow meter, a water pump, an injector and a pipeline; a water inlet and a water outlet are arranged at the two ends of the tube body, an air vessel which is connected with an air inlet pipe of the oxygen flow meter by an air reclaiming pipe is arranged above one end of the tube body; a contact mixer blade is arranged in the tube body; the oxygen flow meter is arranged at the upper part of the tube body, one end of which is connected with an air supply pipe and the other end is connected with an air inlet pipe, the air inlet pipe and a water outlet pipe are jointly connected with the injector; the lower part of the injector is connected with an air-water outlet pipe, the orifice of which is inside the tube body; the water pump is arranged above the tube body and has a suction pipe and an outlet pipe, the orifice of the suction pipe is arranged inside the tube body, the water outlet pipe is connected with the air inlet pipe; the water suction pipe and the water outlet pipe are both controlled by valves. The invention is simple in design, small in energy consumption, low in cost and high in oxygen utilization rate which is greater than 99 percent, the invention is convenient for production management and maintenance; the invention is a practical fishpond circulating water efficient oxygen-dissolving equipment of the plant-type industrial culturing.

Description

Technical field: [0001] The invention belongs to the industrial aquaculture water treatment technology, and is a high-efficiency oxygen dissolving device for circulating water in fish ponds. Background technique: [0002] Before the present invention was made, the method for dissolving oxygen in domestic factory farms mainly relied on air aeration. Because the oxygen content in the air is only 21%, the effect of dissolved oxygen is poor, so the oxygen content in the aquaculture water is extremely low, and the power consumption of the blower is large, which is prone to failure; in addition, there is no good one in my country at present The complete set of dissolved oxygen equipment for factory fish farming can only improve dissolved oxygen by injecting air. [0003] The method of dissolving oxygen in the water of factory farms abroad; most of the recently built circulating water systems in Europe have adopted a pure oxygen source culture system, which is mainly used for breed...

AI Technical Summary

Problems solved by technology

This pure oxygen source breeding system uses direct injection of pure oxygen into the breeding pond, which can make the oxygen content in the water reach 10 mg / L, but the oxygen injected into the water stays in the breeding pond for a short time. The dissolution efficiency in the aquaculture pond is low. The dissolution efficiency is only about 5% when using ordinary air stones. Even if nano air stones are used, the dissolution efficiency is less than 50%. Therefore, the utilization rate of pure oxygen is low and the waste of pure oxygen is serious. , not suitable for domestic breeding status

[0004] There are also oxygen-dissolving devices in foreign countries, mainly using the principle of jet-dissolved gas, but there is no oxygen recovery device, and its cost is relatively high

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