CN2284236Y - Surface aerator - Google Patents

Abstract

The utility model relates to a surface aerator which is composed of an electric motor, an impeller, a floating block, a stream guidance pipe, etc., wherein an electric motor shaft is directly connected with an impeller shaft, the impeller is spiral and forms the shape of an inverse conical table from below upward, an encloser for the impeller shaft is connected with the stream guidance pipe through an upper and a lower connecting disks under which a balance plate is arranged, and the floating block is arranged at the outer edge of the impeller. When the utility model works, the electric motor floats on a water surface, and the rest part of the utility model is under water; compared with the traditional surface aerator, the utility model does not need an installation base, the quality of the utility model is reduced by more than half, and cost is lowered.

Description

Surface aeration machine

The utility model belongs to a kind of environmental protection device, specifically the high speed surface aerator.

Surface aeration machine is the machinery that carries out biochemical treatment in the purifying treatment effluent sewage process, existing surface aeration machine complex structure, and weight is big, and efficient is lower, and needs huger installation basis.

The utility model is the surface aeration machine that a kind of new texture will be provided, it is not only simple in structure, effect is high, and it is over half to reduce quality than existing widely used aerator, and manufacturing cost obviously reduces, installation basis and installation process have been saved in also floatability operation on the water.

The purpose of this utility model is achieved in that motor shaft directly is connected with impeller shaft, motor cabinet and last terminal pad are fixed, spiral screw feeder shape impeller is fixed on the impeller shaft, spiral screw feeder shape impeller shape is inversed taper platform shape from bottom to up, impeller cover is included in the impeller outer edge, its upper edge is connected with following terminal pad, the lower edge is connected with the thrust-augmenting nozzle upper edge, be connected with many thru-bolts between last terminal pad and the following terminal pad, the thrust-augmenting nozzle bottom is fixed on the angled each other balancing plate, and floating block is fixed on the impeller cover outer.

The utility model not only makes complete machine structure simplify owing to adopted the structure of the direct-connected impeller of motor, and quality only accounts for below half of traditional type, and has omitted the basis is installed, and has strengthened the sewage purification ability.

Concrete structure of the present utility model is provided by following examples.

Fig. 1 is according to the surface aeration machine sectional view that the utility model proposes.

Number in the figure: the 1-motor, the 2-impeller, the 3-floating block, the 4-impeller cover, the 5-thrust-augmenting nozzle, the 6-balancing plate, the 7-impeller shaft, terminal pad under the 8-, the last terminal pad of 9-, 10-connects thru-bolt.

The axle of motor 1 directly is connected with impeller shaft 7, motor cabinet and last terminal pad 9 are fixing, spiral screw feeder shape impeller 2 is fixed on the impeller shaft 7, impeller cover 4 is included in impeller 2 outers, the upper edge of case is connected with following terminal pad 8, the lower edge is connected with the upper edge of thrust-augmenting nozzle 5, be connected with 4 thru-bolts 10 between last terminal pad 9 and the following terminal pad 8, the bottom of thrust-augmenting nozzle 5 is fixed on the angled each other balancing plate 6, floating block 3 is fixed on impeller cover 4 outers, and spiral screw feeder shape impeller is inversed taper platform shape from bottom to up.Surface aeration machine places water during work, motor 1 is positioned at more than the water surface, impeller 2 Lower Halves under water, the direct impeller of motor is made high speed rotating, the generation negative pressure owing to run up, make the sewage that has active substance in the sewage lagoon, constantly suck, under impeller action, upwards promote by the thrust-augmenting nozzle bottom, and from being parabola shaped ejection between terminal pad up and down, form water curtain, a large amount of air is wrapped up in brought in the water, reach the purpose of efficient oxygenation.The material of floating block adopts Polyurethane in the present embodiment.Adopt floe structure can make complete machine in water, stablize operation.

Claims (3)

1, a kind of surface aeration machine is made up of motor, impeller, floating block thrust-augmenting nozzle etc., it is characterized in that:

A, motor shaft directly are connected with impeller shaft, and motor cabinet and last terminal pad are fixed;

B, impeller are fixed on the impeller shaft;

C, impeller cover are included in the impeller outer edge, and its upper edge is connected with following terminal pad, and the lower edge is connected with the thrust-augmenting nozzle upper edge;

D, go up between terminal pad and the following terminal pad and be connected with many thru-bolts;

E, thrust-augmenting nozzle bottom are fixed on the angled each other balancing plate;

F, floating block are fixed on the impeller cover outer.

2, surface aeration machine according to claim 1 is characterized in that impeller is a cone-type spiral screw feeder shape.

3,, it is characterized in that spiral screw feeder shape impeller shape is inversed taper platform shape from bottom to up according to claim 1,2 described surface aeration machines.