CN2850278Y - Screen water film aerating and oxygen charging device - Google Patents

Abstract

The utility model relates to a screen water film aeration and oxygenation device, which winds a screen filler (3) on each frame surface of a concentric multi-layer cylindrical frame to form a screen tube (2). The bearings (14) are fixed on the front and rear buoyancy tanks (5) (6) and suspended on the water surface, and the windmill (7) and the motor (11) drive the screen cylinder to rotate axisymmetrically, so that the unit water body is on the surface of each layer of screen A water film is formed to aerate and increase oxygen, and at the same time, water is lifted from the leaking tube (4) on the skeleton and poured onto the wire mesh to enhance the dissolved oxygen effect, and moves around the anchor (16) with the wind direction to achieve the purpose of increasing oxygen in the surrounding water. The aeration device increases oxygen and protects the environment, improves water quality, can save a lot of energy consumption, and can greatly increase fishery output per unit water surface, and is especially suitable for aquaculture and comprehensive management of nutrient-rich water bodies.

Description

Screen water film aeration and oxygenation device

technical field

The utility model relates to an aeration and oxygenation device for water body, which is especially suitable for aquaculture and comprehensive management of eutrophic water body.

Background technique

The eutrophication of water body is a subject of research all over the world. The decomposition of organic matter by microorganisms will deplete the oxygen content of the water body. Biological oxygen consumption is an important indicator to measure water quality. The process of dissolved oxygen in water can only occur at the interface between the water surface and air (oxygen), and the high and low oxygen-containing water can reach a relatively balanced dissolved oxygen through diffusion and convection. The larger the surface area of the unit water body, the shorter the time required to reach saturation of oxygen solubility. The low oxygen tolerance of different fish is 2-9PPM, and the oxygen content of the water body is lower than 1PPM, and the fish will die in the pond. Existing aerators use an air compressor to press air into the underwater bubbling type and the turbine-driven water turning type, which generally have problems such as low energy efficiency ratio, large momentum consumption, and high operating costs.

Contents of the invention

In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a screen water film aeration and oxygenation device with large surface area, fast saturation and dissolved oxygen, good aeration and oxygenation effect, and operating by natural wind. .

The technical scheme adopted by the utility model is: wrap the wire mesh filler on each layer of the skeleton surface of the concentric multi-layer cylindrical skeleton to form a wire mesh cylinder, and its axis is fixed on the front and rear buoyancy tanks by bearings and suspended on the water surface, and is in the shape of an axis. The symmetrical rotation makes the unit water body form a water film on each layer of silk screen to aerate and increase oxygen.

A windmill and a motor are installed on the rear pontoon, and the windmill and the motor drive the wire mesh cylinder connected to the belt pulley to rotate through a belt and a belt pulley; a windmill and a gearbox can also be installed on the rear pontoon, and the windmill is connected through a drive shaft and a gearbox. The screen drum of the gearbox rotates. One or more wire mesh cylinders are fixed in parallel on a pair of buoyant tanks, and anchor spindles are arranged on the side plates of the front buoyant tanks. There are many leaking tubes fixed on the outer circumference frame of the wire mesh tube.

According to the double-film adsorption theory, the surface tension of water is used to allow water to form a water film on the wire mesh of the screen cylinder, and the gas film and the liquid film absorb, mass transfer and dissolve oxygen. There is only one interface between the water surface and the air, but there are two interfaces between the water film and the air. The aeration device adopts multi-layer wire mesh, so that the surface area of the water film is large and the speed of saturated dissolved oxygen is fast. The wire mesh cylinder is suspended on the water surface and rotates symmetrically around the axis. At the same time, the leaking cylinder on the skeleton lifts water and pours it on the wire mesh to form a flowing water film, which has a better oxygenation effect. When running at low speed, the water film between the meshes is broken, and the water film is wrapped on the wire mesh, which still has a certain ability to dissolve oxygen. Directly driven by a windmill, it can realize automatic operation with natural energy consumption; the motor is driven by a windmill, the motor starts when there is no wind, and the mechanical device can run uninterrupted; only the motor is used to drive, the size of the mechanical device, and the use environment are more flexible. It adopts a single or multi-body connecting horizontal structure, as well as anchor chains and anchor spindles to fix the position, so that the working water area is stable.

The beneficial effects achieved by the utility model are: increasing oxygen and environmental protection, improving water quality, increasing fishery output per unit water surface, long-term automatic operation after one-time investment, little human influence, and greatly saving energy consumption and management costs.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In Fig. 1, water body 1, screen cylinder 2, wire mesh 3, water leakage cylinder 4, front float box 5, rear float box 6, windmills 7, 8, belt 9, belt pulley 10, motor 11, transmission shaft 12 , gearbox 13, bearing 14, anchor chain 15, anchor spindle 16.

Detailed ways

The wire mesh water film aeration and oxygenation device shown in Figure 1 is to wind the wire mesh filler 3 on each layer of the skeleton surface of the concentric multi-layer cylindrical skeleton to form the wire mesh cylinder 2, and the axis of the wire mesh cylinder is passed through the bearing 14 is fixed on the front and rear buoyancy tanks 5 and 6 and is suspended on the water surface. The rear buoyancy tank 6 is equipped with a windmill 7 and a motor 11. The windmill and the motor drive the wire mesh cylinder connected to the belt pulley through the belt 9 and the belt pulley 10 to rotate around the axis. Also can be equipped with windmill 8 and gearbox 13 on the buoyancy tank 6, windmill drives the wire mesh cylinder that connects gearbox to rotate through drive shaft 12, gearbox 13, makes unit water body form water film aeration to increase on every layer of wire mesh surface. oxygen. There are many leaking cylinders 4 fixed on the outer circumference skeleton of the wire mesh cylinder, and the wire mesh cylinders can be single or multiple in parallel and fixed on a pair of buoyancy tanks.

After the installation and commissioning are completed, anchor in appropriate waters. Since the anchor chain 15 and the anchor spindle 16 are pulling the front buoy box 5 of the aerator, the front of the windmill on the rear buoy box 6 is 90°C and the shaft 14 is always rotating in the direction of the wind, passing through the belt assembly Or the transmission shaft assembly drives the screen cylinder to rotate symmetrically around the axis, and the water is brought into the air to form a water film, aerated and dissolved oxygen, and then transferred to the water body 1, convectively replaced with low dissolved oxygen water, and then brought into the air. With the speed up of the wire mesh cylinder, the water leakage cylinder 4 can lift water to a high point and pour it on the wire mesh to form a flowing water film and drop the exposure to enhance the effect of dissolved oxygen. As the wind direction changes, the aerator moves around the anchor 16 to complete the oxygenation work of the surrounding water body.

Use water pumps and water trucks to spray water on the static screen to form a water film and drop exposure, which can also achieve a higher oxygenation effect.

Claims (5)

1, a kind of silk screen moisture film aeration oxygen replenishing device, it is characterized in that: on each layer skeleton face of concentric multilayered cylindrical skeleton, twine wire packing (3) and form wire mesh tube (2), its axle center is fixed on the forward and backward buoyancy tank (5) (6) through bearing (14) and is suspended in the water surface, and rotation status axisymmetricly, unit of water body forms the moisture film aeration oxygen replenishing on every layer of silk screen face.

2, silk screen moisture film aeration oxygen replenishing device according to claim 1, it is characterized in that: on the described back buoyancy tank (6) windmill (7) and electromotor (11) are installed, windmill drives the wire mesh tube that is connected belt pulley with electromotor by belt (9), belt pulley (10) and is rotation status.

3, silk screen moisture film aeration oxygen replenishing device according to claim 1, it is characterized in that: on the described back buoyancy tank (6) windmill (8) and gearbox (13) can be installed also, windmill drives the wire mesh tube that connects gearbox by power transmission shaft (12), gearbox and is rotation status.

4, silk screen moisture film aeration oxygen replenishing device according to claim 1 is characterized in that: described wire mesh tube is that parallel connection is fixed on a pair of buoyancy tank more than one or one, and preceding buoyancy tank (5) side plate is provided with anchor ingot (16).

5, silk screen moisture film aeration oxygen replenishing device according to claim 1 is characterized in that: be fixed with many tubes (4) that leak on the described wire mesh tube excircle skeleton.