Oxygenation device

Abstract

The invention relates to an oxygenation device, which comprises: a flow guide cover, wherein a water flow channel is arranged in the flow guide cover, a water inlet and a water outlet forming fluid communication with the water flow channel are formed in the flow guide cover, the water inlet is located on the upstream of the water outlet along a water flow path, and the water flow channel is gradually shrunk along the water flow path; a gas guide pipe vertically arranged and fixed relative to the flow guide cover, wherein the upper end of the gas guide pipe has a gas inlet, and a gas outlet isformed at the lower end of the gas guide pipe; and a mixing channel positioned at the downstream of the flow guide cover along the water flow, wherein the upstream port of the mixing channel is connected with the water outlet of the flow guide cover and is in fluid communication with the water outlet of the flow guide cover, the mixing channel is communicated with the gas outlet of the gas guide pipe to suck gas in the gas guide pipe into the mixing channel, and the mixing channel is further provided with a spraying nozzle for spraying out water mixed with the gas inside the mixing channel. Compared with the oxygenation device in the prior art, the oxygenation device of the invention does not require a water pump, a motor and other additional power sources in an oxygenation process so as to save energy and cost.

Description

technical field [0001] The invention belongs to the technical field of oxygenation devices, and in particular relates to an oxygenation device for self-oxygenation of water bodies. Background technique [0002] In today's period when our country is vigorously promoting the construction of ecological civilization, pollution prevention technology and ecological restoration technology are one of the key technologies required by the country. [0003] In the process of domestic sewage treatment, river ecological management, black and odorous rivers and reservoirs, lakes, and rivers in large rivers, it is necessary to increase oxygen in the water body to degrade and remove pollutants. . [0004] The current methods of oxygenation include mechanical physical method, chemical method, biological method and natural form method. The physical method of the mechanical section includes micro-holes, perforations, aeration and oxygenation of the fan, water spraying and aeration, water agi...

AI Technical Summary

Problems solved by technology

For example, the jet flow aerator device disclosed in the Chinese utility model patent "Jet Flow Aerator" with the patent No. ZL87214816 (the authorized announcement number is CN87214816U) is composed of a water pump, a hydraulic jet element and a pipeline. The water pump can be installed on the ground, and the hydraulic The jet element is underwater, and there is a vent pipe on the hydraulic jet element. After the air is sucked from the vent pipe and mixed with the jet, it is ejected under the water surface in the shape of a conical flow at a certain pressure and speed, so that the oxygen in the air can be fully absorbed. Contact with the pool water and gradually dissolve in the water to achieve the purpose of oxygenation. Although oxygenation is achieved, it needs to rely on water pumps and motors to achieve the purpose of oxygenation.

[0005] The disadvantage of the chemical oxygenation method is that the chemical oxygenation agent needs to be continuously invested, and its cost is higher, which is unrealistic for the treatment of water bodies in large river basins, and it is very troublesome to invest again after one investment; the biological method passes through algae in microorganisms , fungi, aquatic plants, etc. to carry out photosynthesis to increase oxygen requires sufficient water body, sufficient area and sufficient water body residence time. When the speed of the water body reaches 3 meters per minute, it is difficult for swimming algae to reproduce, and it is difficult to achieve oxygenation of the water body by relying on biological oxygen absorption, and the aquatic plants are seasonal and the maintenance is also very cumbersome; the natural way is to build Dams are used to achieve the purpose of increasing oxygen, which mainly uses the potential energy of water to aerate falling water, and this method will cause problems such as flood drainage, damage to the integrity of river circulation, and blocking water transport channels, and the oxygen increasing effect is poor , not suitable for the governance of large river basins

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