Combined jet impeller underwater aeration machine

Abstract

The invention discloses a combined jet blade wheel underwater aerator which comprises a motor (1), a reductor (2), a mounting frame (4), a transmission mechanism and a blade wheel (20). The motor (1) is fixedly connected with the reductor (2). Blades (20) are radially fixed on the blade wheel (20). A water inlet hole (26) is formed at the bottom of the blade wheel (20). The combined jet blade wheel underwater aerator is characterized in that a pedestal (3) is arranged at the bottom of the reductor (2); the upper surface of the pedestal (3) is fixedly connected with the reductor (2) and the lower surface thereof is fixedly mounted on the mounting frame (4); and the upper end of the transmission mechanism passes through the pedestal (3) and then is connected with the output shaft of the reductor (2) in a sliding manner and the lower end thereof is fixedly connected with the blades (20). The combined jet blade wheel underwater aerator can be mounted on a pond with convenience in installation, connection, maintenance and repair and low labor intensity of the operating staff, and can ensure uniform distribution of dissolved oxygen in water in three layers, increase the dynamic efficiency and reduce the cost of purifying various sewages.

Description

technical field [0001] The invention relates to an underwater aerator with a combined jet impeller, in particular to an underwater aerator with a combined jet impeller for the purification and treatment of urban sewage and various industrial wastewater. Background technique [0002] The aerator is the key equipment for the high energy consumption of urban sewage and various industrial wastewater by biological treatment. The structure of all similar products in the world has the following problems: (1) At present, the motor and reducer of the aerator are hoisted from the top of the pool cover, while the impeller has to be hoisted from the bottom of the pool cover due to its large diameter and heavy weight It is connected and fixed with the reducer. When there is water in the pool, all the aerators in the same group must be stopped at the same time during maintenance; the activated sludge water in the pool must be completely released; after the pool is rinsed, the operator can...

AI Technical Summary

Problems solved by technology

The structure of all similar products in the world has the following problems: (1) At present, the motor and reducer of the aerator are hoisted from the top of the pool cover, while the impeller has to be hoisted from the bottom of the pool cover due to its large diameter and heavy weight It is connected and fixed with the reducer. When there is water in the pool, all the aerators in the same group must be stopped at the same time during maintenance; the activated sludge water in the pool must be completely released; after the pool is rinsed, the operator can The impeller is disassembled in the pool, and it can be restarted after the maintenance is completed. During the maintenance process, the sewage treatment must be stopped, but the sewage in the city is continuously discharged, so it must be operated around the clock. The shutdown maintenance can only discharge the sewage directly, so it is not necessary. It can be shut down, which causes a lot of trouble and many unsafe hidden dangers to maintenance and repair, and some even drop the impeller in the depth of the sewage pool during operation and cannot be salvaged; (2) the current impeller has a single shape and structure, and can only Surface aeration is performed, but middle and deep water layers cannot be aerated, resulting in uneven dissolved oxygen in the surface, middle, and deep water of the pool. The dissolved oxygen in the water is high in the surface layer, low in the middle layer, and absent in the deep

Low power efficiency leads to inflated sewage treatment costs, which does not conform to the national industrial policy of "energy saving and consumption reduction"

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