Impeller used for aerator

Abstract

The invention discloses an impeller used for an aerator. The impeller includes a blade frame and blades; the blade frame is detachably connected with the blades, the blade frame is of a regular polygon structure, any one side of the polygon structure is provided with a raised line smaller than the side in length, and the blades are provided with clamp grooves matched with the raised lines and a plurality of water through holes. An impeller structure formed by the combination of the detachable blades and an impeller body is adopted, installation, maintenance and replacement can be very rapidly conducted, the firmness is high, the service life is prolonged, and the problem that the whole traditional impeller needs to be replaced after being locally damaged; double-insurance installation is adopted between the blades and the blade frame, on the basis that the clamp grooves are connected with the raised lines, inserting blocks are connected with inserting holes, and the reliability and the firmness of connection are enhanced. The water through holes in the impellers adopt two structures, the first through holes are formed near the connection portions of the blades and the impeller body, the second through holes are formed away from the connection portions of the blades and the impeller body and provided with blocking strips, and the amount of oxygen, entering in water, from air is increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to an impeller for an aerator. Background technique [0002] The aeration machine is a commonly used machine in the fishery and aquaculture industry. It 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 equipment in the aquaculture water body. The machine is mainly used to increase The oxygen content in the water can ensure that the fish and other organisms in the water will not be hypoxic, and at the same time, it can also inhibit the growth of anaerobic bacteria in the water and prevent the deterioration of the pool water from threatening the living environment of the island fish. The machine generally uses its own air pump to drive air into the water, so as to achieve the purpose of increasing the oxygen content in the water. The use of an aerator can not onl...

AI Technical Summary

Problems solved by technology

[0003] In traditional aerators, there are two common structures for the impeller setting. One impeller type uses a metal impeller. The impeller is set at the center of the aerator under the motor. This structure has limited impeller rotation space, and the amount of oxygen that can be increased is limited by the power of the motor. 1. The size of the impeller has a great influence, the contact area between the impeller and the air is limited, the amount of oxygen added to the water body in a unit time is limited, and the noise is relatively large during operation; the other is the waterwheel type, and the impeller speed of this structure is not high , the lifting force on the bottom layer is not large, so it will not "arch the bottom of the pool", the weight of the whole machine is also light, it has a strong push flow ability and a certain mixing ability, and can obtain a better oxygen-liquid contact area and increase oxygen. The efficiency is high, but the impeller used in the traditional waterwheel type has the following defects: 1. The entire impeller is integrally formed of plastic material, and the entire impeller needs to be replaced if it is partially damaged; 2. Another impeller is a polygonal runner and the corresponding runner The variable number of blades are connected by plugging. Each side of the runner is provided with a protruding strip with the same length as the side, and the blade is provided with a slot with the same length as the side. When this structure is installed, due to the slot, The protruding strip is as long as the side, and requires a lot of force to achieve full engagement, and when installing the blade on one side, it is easy to touch the two adjacent blades on the side, so the installation space is limited, and the installation of the blade and the runner is very difficult. Inconvenient; 3. Most of the blade structures are through-holes in the middle, the impeller rotates, and the water flows directly through the holes. The water body of this structure passes through the through-holes in a large amount, and the resistance to the blades is also relatively large. The contact with the air The area is small, and the oxygen in the air cannot be effectively exchanged with the water body.

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