The main pipe of the fixed microporous aeration and aerator is placed on the ridge; the floating microporous aeration and aeration machine needs to add a floating boat assembly, and the main pipe is placed on the floating boat, as shown in Figure 6-10. An aerator uses 3 support rods, and some are equipped with water level adjustment devices.

Floating boat: Nowadays, hollow blow molding is mostly used to form a boat shape, and polystyrene foam or glass steel pipe can also be used.85g. When installing the impeller aerator, ensure that the water flow generated by the aerator during operation will not stir up the silt at the bottom of the pool. The angle of the jet tube of the jet aerator can be adjusted arbitrarily, which can improve the contact surface between air and water.. The equipment of aerator (1) Determine the loading load of the aerator The determination of loading load generally considers water depth, area and pool shape.7m or less and an area of ​​400m2 or less. The equipment of aerators is shown in Table 6-1.

Floating type microporous aeration and aeration machine This machine has two types, fixed type and floating type. 2. In addition, pay attention to the safe use of electricity during installation, take protective measures for safe use, and frequently check and repair. The impeller aerator has the comprehensive functions of aeration, aeration and agitation of the water body, which promotes high and stable production of fish in ponds, and has a wide range of adaptability.8 mu (about 2530m2) of surface adult fish ponds per kilowatt, 4. Its aeration and working water circulation effects are better than those of the single output shaft type with the impeller placed between the pontoons. Water jet aerator The machine is mainly composed of three parts: a motor, a water pump and a floating body.

Inhalation aerator The suction aerator sends air into the water through negative pressure inhalation, and forms a vortex mixing with the water to push the water forward, because of the strong mixing force. It has oxygenation, disinfection, sterilization and conditioning With multiple functions of water quality, the use of this machine can reduce the occurrence of fish diseases, save a lot of drug costs for fishermen, without secondary pollution, and protect the environment. The aeration tray can be collected and moved through the hose.

The inner diameter of the pipeline should not be less than the diameter of the air outlet of the fan to ensure the air flow. The air mixes in the water body to form many blisters to aerate the water body. The waterwheel type is the best for the rectangular pool, and the impeller type for the square or round pool is better; the impeller aerator can basically meet the aerobic needs of 3. The motor should be equipped with a rain cover that does not hinder ventilation to prevent sun and rain.Installation position of the aerator The aerator should be installed in the center of the pond or at a windward position.

Frame and other components. When the machine is stopped, it can prevent the backflow of gas from damaging the fan, and prevent sewage from entering the aeration pipe and causing micropore blockage. Some products use phenolic cloth sandwiched plastic bearings or nylon bearings with long life. ⑶ Power efficiency: refers to the aeration capacity per kilowatt of input power under specified conditions, expressed in E, and the unit is kg/(h·kW). The length.

A rain cover should be set up to protect the motor and gearbox, but good ventilation should be maintained; in addition, the gearbox should use oil Splashing lubricating oil should be strictly sealed and replaced regularly. According to measurements, the total oxygen consumption per kilogram of fish per hour is about 1. ③Frame: It is used to support the weight of the whole machine and must be kept on a horizontal line. ③Impeller: The main body of the inverted umbrella impeller is an inverted cone with a partition in the middle, which is welded or injection molded by steel plates

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