Energy-saving efficient impeller aerator

Abstract

The invention discloses an energy-saving efficient impeller aerator. The aerator is fixed to a water surface through a supporting rack and a floating cylinder to work, and the aerator comprises an electromotor and an impeller, wherein the impeller is installed below the electromotor, the impeller is composed of a wheel body in the center and a plurality of detachable blades which are distributed on the lateral side of the wheel body, the blades are obliquely installed on the lateral side of the wheel body through bolts, and the positions of the blades can be adjusted up and down along the lateral side of the wheel body. Acute angles are formed between the installation positions of the blades and the axis of the wheel body, the included angles between the blades and the radial direction ofthe wheel body are smaller than or equal to 90 degrees, the upper end of each blade is wider than the lower end, the inclination angle of the top edge of each blade is equal to that of the bottom edge, and hollow-out holes are formed in the blades. The energy-saving efficient impeller aerator has the adcarttages that the structure is simple, convenience is brought to use, the power of the electromotor is lower, more energy is saved, the contact area of water and air is increased, the content of oxygen dissolved in the water of the same volume is higher, and the working efficiency of the aerator is higher; moreover, the impeller can be disassembled, so that the transportation and maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of fish farming, in particular to an energy-saving and high-efficiency impeller-type aerator. Background technique [0002] Aerator is a kind of machine often used in fish farming. Its main function is to increase the oxygen content in the water to ensure that the fish in the water will not be hypoxic. At the same time, it can also inhibit the growth of anaerobic bacteria in the water and prevent the pool water Deterioration threatens the living environment of fish. The aerator generally relies on its own air pump to pump air into the water to increase the oxygen content in the water. The aerator is a device that drives the working parts through a power source such as an electric motor or a diesel engine, so that the "oxygen" in the air is quickly transferred to the aquaculture water body. In addition, it can eliminate the problem of fish floating head caused by hypoxia, and can eliminate harmful gases, promote conve...

AI Technical Summary

Problems solved by technology

[0003] Due to the good power effect of the impeller aerator and the large working area, it is suitable for raising the four major fishes; the existing impeller aerator has the best effect, usually 8-blade impeller, its power consumption is large, and the diameter of the water splash when the aerator is working Small, and the dissolved oxygen in the water is low, resulting in low oxygenation efficiency, and the draft of the blades in the impeller of the existing aerator is about 100mm shallow. When the aerator is working, the impeller rotates, so that the water in the blade working area is too late Supplementary, resulting in a reduction in the amount of plow water, at the same time, because the existing impellers are all integrated, they are easy to be damaged during transportation. In use, due to misoperation, the blades are damaged, which directly causes damage to the impellers and increases the user's use cost. As those skilled in the art, in order to increase the dissolved oxygen content of water, the mode of increasing blades is usually adopted to improve the dissolved oxygen effect of water, but along with the increase of the blades of the blades, when the impeller rotates, the water is plowed up by the blades, The water is thrown out by multiple blades to increase the contact area between the water and the air. However, due to too many blades, the water at the working position of the aerator impeller is too late to recover, so that the amount of water plowed by the aerator is reduced when the aerator is working. Because the arrangement of the blades is dense and the gap is small, the plowed water will repeatedly fall on the blades, causing the aerator to do work repeatedly, increasing the energy consumption of the motor, making the effect of dissolved oxygen in the water poor, and reducing the dissolved oxygen in the water. effect, and increasing the blades will also increase the resistance of the impeller rotation and increase the load on the motor. At the same time, it is not in line with the current national policy of advocating energy conservation and emission reduction. The aeration effect of the impeller aerator is in urgent need of a high-efficiency and energy-saving impeller aerator

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