CN202072550U

CN202072550U - Diving flow ejecting aerator with stirring device

Info

Publication number: CN202072550U
Application number: CN2011201619970U
Authority: CN
Inventors: 吴永旭; 蔡奎义; 张晓宁
Original assignee: Shanghai East Pump Group Co Ltd
Current assignee: Shanghai East Pump Group Co Ltd
Priority date: 2011-05-19
Filing date: 2011-05-19
Publication date: 2011-12-14
Anticipated expiration: 2021-05-19

Abstract

A diving flow ejecting aerator with a stirring device comprises a diving sewage drainage pump, a nozzle is connected with the diving sewage drainage pump and extends in a mixing chamber, the inlet of the mixing chamber is connected with an air inlet tube, and the outlet of the mixing chamber is connected with a diffusion tube. The stirring device is arranged on the top of an impeller of the diving sewage drainage pump and comprises a rotating shaft which penetrates through the middle portion of the impeller to be connected with a pump shaft. The rotating shaft is provided with a spiral cutting blade. In sewage water which is comparatively larger in solid-liquid medium ratio or contains lots of fiber-shaped objects, the stirring device is provided with a spiral cutting blade, the sharp edge of the cutting blade can cut the fiber-shaped objects into pieces in high-speed motion, thereby lowering the probability that the impeller, the mixing chamber and the nozzle are twined or blocked. Simultaneously, the stirring device can remarkably enable sludge in an aeration pond to be regenerated and reactivated, thereby improving the effect of oxygenation and aeration.

Description

A kind of diving jet aerator that disposes whipping appts

Technical field

The utility model relates to a kind of diving jet aerator that disposes whipping appts.

Background technology

Diving jetting type aerator is applied in sewage disposal plant aeration tank, the aerated grit chamber, the mixed liquid of sewage sludge is carried out oxygenation and mixing, and sewage is carried out biochemical treatment and oxygenation, and air input is 10～400m ³/ h, oxygen transfer rate are 0.37～24kgO ₂/ h, power of motor is 0.75～22kW, existing diving jetting type aerator is not with whipping appts, if when directly in water field of big area such as oxidation pond, river course, fishpond, activated sludge tank, storage mud well, balancing tank, using, because the solid-liquid concentration ratio in the medium is bigger, what have also exists fibrous object, therefore causes diving jetting type aeration machine impeller to stop up easily

As shown in Figure 1, this diving jetting type aerator is by proof submersible sand discharging pump 100, inlet pipe 220, mixing section 210, nozzle 120, diffuser tube 230 compositions such as grade, make hydrostatic stream form high velocity flow by submersible pump during work through nozzle, around nozzle, form negative pressure air, mix through mixing section and current, in flaring diffuser tube, produce gas-vapor mix stream, thereby formation aeration, if it is big and the occasion of fibrous object arranged to be used in solid-liquid concentration ratio, fibrous object is wrapped on the impeller 110 easily, in a single day above phenomenon takes place when high speed rotating, impeller is stopped up even the damage impeller, thereby cause mixed air vessel's air water ratio can't reach standard proportional, nozzle and mixed air vessel can't form negative pressure, make sewage not form, under circulate, gas, the liquid interface can not fully be upgraded, and airborne oxygen can not be transferred in the liquid rapidly, thereby influences the result of sewage disposal, even following one treatment process of influence, poor reliability.

The utility model content

In order to address the above problem, the utility model provides a kind of diving jet aerator that disposes whipping appts.

The utility model is that the technical scheme that its technical problem of solution is adopted is,

A kind of diving jet aerator that disposes whipping appts comprises proof submersible sand discharging pump, is connected with nozzle on the proof submersible sand discharging pump, nozzle stretches in the mixing section, the import of mixing section is connected with inlet pipe, and its outlet is connected with diffuser tube, and the impeller tip of described proof submersible sand discharging pump is provided with whipping appts.

Further, described whipping appts comprises a rotation axis, and rotation axis passes with pump shaft from the impeller middle part and is connected, and rotation axis is provided with the spirrillum cutting blade.

Gas liquid mixture is discharged from mixing chamber with the angle of particular design, and the current curl is upwards flowed then to the horizontal direction diffusion, and the impeller of band whipping appts has cutting and stirring action concurrently in aeration aerating.The gas-liquid mixed physical efficiency produces large-area gas-liquid interface in the pond, and when bubble slowly rises, air is dissolved in the water, reaches higher biography oxygen effect.

The beneficial effects of the utility model are, in or the sewage that the fibrousness object is more bigger at the solid-liquid medium, owing to disposed spiral helicine cutting blade on the whipping appts, the cutting edge that blade is sharp during high-speed motion can be with fibrous object chopping, reduce impeller, mixing section, nozzle is wound or the possibility stopped up, this whipping appts can make the mud regeneration in the aeration tank significantly and recover active simultaneously, thereby strengthens the effect of oxygenic aeration.

Description of drawings

Fig. 1 is the structural representation of existing diving jet aerator;

Fig. 2 is the structural representation of the diving jet aerator of the configuration whipping appts that the utility model proposes.

Embodiment

For technique means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.

As shown in Figure 2, the diving jet aerator of the configuration whipping appts that the utility model proposes comprises proof submersible sand discharging pump 100, be connected with nozzle 120 on the proof submersible sand discharging pump 100, nozzle 120 stretches in the mixing section 210, the import of mixing section 210 is connected with inlet pipe 220, its outlet is connected with diffuser tube 230, and impeller 110 tops of described proof submersible sand discharging pump 100 are provided with whipping appts.Described whipping appts comprises a rotation axis 130, and rotation axis 130 passes with pump shaft from impeller 110 middle parts and is connected, and rotation axis 130 is provided with spirrillum cutting blade 131.

In or the sewage that the fibrousness object is more bigger at the solid-liquid medium, owing to disposed spiral helicine cutting blade on the whipping appts, the cutting edge that blade is sharp during high-speed motion can be with fibrous object chopping, reduce impeller, mixing section, nozzle is wound or the possibility stopped up, this whipping appts can make the mud regeneration in the aeration tank significantly and recover active simultaneously, thereby strengthens the effect of oxygenic aeration.

More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification sheets just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. diving jet aerator that disposes whipping appts, comprise proof submersible sand discharging pump, be connected with nozzle on the proof submersible sand discharging pump, nozzle stretches in the mixing section, the import of mixing section is connected with inlet pipe, its outlet is connected with diffuser tube, it is characterized in that, the impeller tip of described proof submersible sand discharging pump is provided with whipping appts.

2. a kind of diving jet aerator that disposes whipping appts according to claim 1 is characterized in that described whipping appts comprises a rotation axis, and rotation axis passes with pump shaft from the impeller middle part and is connected, and rotation axis is provided with the spirrillum cutting blade.