CN102502979B

CN102502979B - Volute hydraulic rotational plug flow aerator

Info

Publication number: CN102502979B
Application number: CN201110356815XA
Authority: CN
Inventors: 鄢碧鹏; 蔡小虎; 汤方平
Original assignee: Yangzhou University
Current assignee: Yangzhou University
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2013-04-17
Anticipated expiration: 2031-11-11
Also published as: CN102502979A

Abstract

The invention relates to an aerator, in particular to a volute hydraulic rotational plug flow aerator, which is suitable for an efficient novel aerator for landscape water bodies, aquaculture and sewage treatment. The volute hydraulic rotational plug flow aerator comprises a motor and a volute, wherein the motor is fixed at the lowermost position of the aerator, and is connected with an impeller through a revolving shaft; the impeller extends towards the volute; the volute is supported by using a support device; the support device is embedded into a fixing device through a rolling shaft; a grating is arranged between the motor and the rolling shaft; and a water-gas mixing chamber is formed by a space encircled by the volute, the support device, the fixing device, the motor and the grating, and is communicated with atmospheric air through a gas suction pipe. The aerator can rotate freely under the action of hydraulic power, can be used for aerating rotationally in multiple directions, and has a simple structure and low cost.

Description

Volute hydraulic rotational plug flow aerator

Technical field

The present invention relates to aerator, be specifically related to volute hydraulic rotational plug flow aerator, be applicable to the new high-efficiency aerator of landscape water body, aquaculture, sewage disposal.

Background technology

Landscape water body in order to modificatory environment, give aesthetic feeling, maintaining ecological balance.Landscape water mostly is the stagnant water feature of closure and illiquidity at present.Airborne dust in natural rainfall, atmosphere, the intrusion of domestic refuse, the objectionable impurities that the bed-silt of long-term accumulation and mud discharge.The environment that lacks aquatic animal,plants existence, make water body lose gradually self-purification capacity, add that river bottom mud is unclear for a long time, bed mud is constantly discharged be decomposed into the nutritive salt such as N, P, cause body eutrophication, it is green that water body turns gradually, and the algae overgrowing finally causes " wawter bloom " phenomenon, produce peculiar smell, blackout is smelly easily, and the water source is on the hazard, the health that impact is human.

Water body also mostly is closed in the aquaculture, and water body lacks necessary circulation, and dissolved oxygen is excessively low, and along with increasing of fishes and shrimps in the water body and other fishery products quantity, its demand to dissolved oxygen will increase greatly, and movement, residual bait etc. also can increase thereupon simultaneously.The hotbed that the anoxic water body provides growth also for unwanted bacteria and virus is so that a large amount of breeding growth of unwanted bacteria and virus.Will inevitably encroach on like this fishes and shrimps in the same water body, so that the probability that fishes and shrimps are fallen ill increases greatly.As not adding control, also may break out fish disease, cause the death of fishes and shrimps in enormous quantities.

Aerating apparatus can be divided into Mechanical aerator, blast aeration system, hydraulic shear formula aerating apparatus, water impact formula aerating apparatus, underwater aeration device etc. in general.In the existing technology, use aerator to overflow by obnoxious flavour, Xiang Shuizhong passes into air or air amount, and mixed with water, makes to dissolve in the effect that more gases are purified in the water.Main purpose is to cause mobile, oxygenation in water, makes stagnant water become running water, to strengthen the self-purification of water body.Existing underwater aeration machine adopts air compressor machine with the air intake aerator, gas is released to reach gas-vapor mix, perhaps utilize the pump vacuum air amount to reach gas-vapor mix, mostly can only a side or bilateral aeration, can't allow aerator rotate freely, aqueous vapor can not properly distributed, and efficient is lower, and complex structure, dumb.

Summary of the invention

Technical problem to be solved by this invention provides a kind of volute hydraulic rotational plug flow aerator, and this aerator can rotate freely under hydraulic action, but the multi-directional rotation aeration is simple in structure, and cost is low.

For solving the problems of the technologies described above, volute hydraulic rotational plug flow aerator of the present invention, comprise motor and volute, described motor is fixed on below of this aerator, described motor connects with impeller via rotating shaft, described impeller extends upwardly to described volute, described volute is supported by bracing or strutting arrangement, described bracing or strutting arrangement embeds stationary installation by roller bearing, between described motor and the described roller bearing grid is set, described volute, bracing or strutting arrangement, stationary installation, the space that motor and grid surround forms water vapor mixing chamber, and described water vapor mixing chamber communicates with atmosphere through air suction pipe, and the end that described air suction pipe stretches into described mixing section stretches to described impeller.

The present invention has following beneficial effect: first, the present invention does not adopt any electric machine control aerator rotation or utilizes external influence power so that the aerator rotation, but form high velocity flow by the current that submersible pump produces through nozzle, around nozzle, form the negative pressure air amount, air mixes with current in water vapor mixing chamber, in conduit, produce gas-vapor mix stream, spray at a high speed by the water outlet volute, current can produce reverse thrust and drive the volute rotation when volute sprays, 360 ° of aeration functions are rotated freely; Change the reverse of volute ejection, can adjust the speed of rotation; For same point, also can reach the effect of intermittent aeration.The second, aerator of the present invention mainly is can rotate freely under hydraulic action, rotation aeration that can be multi-faceted, and simple in structure, cost is low.

Description of drawings

Fig. 1 is the structural representation of volute hydraulic rotational plug flow aerator of the present invention;

Fig. 2 is the plan structure synoptic diagram of volute in the volute hydraulic rotational plug flow aerator of the present invention;

Among the figure: 1 air suction pipe, 2 stationary installations, 3 motors, 4 grids, 5 rotating shafts, 6 impellers, 7 roller bearings, 8 volutes, 9 bracing or strutting arrangements, 10 imports, 11 outlets.

Embodiment

Such as Fig. 1, shown in Figure 2, volute hydraulic rotational plug flow aerator, comprise motor 3 and volute 8, described motor 3 is fixed on below of this aerator, described motor 3 connects with impeller 6 via rotating shaft 5, described impeller 6 extends upwardly to described volute 8, described volute 8 is supported by bracing or strutting arrangement 9, described bracing or strutting arrangement 9 embeds stationary installation 2 by roller bearing 7, between described motor 3 and the described stationary installation 2 grid 4 is set, described volute 8, bracing or strutting arrangement 9, stationary installation 2, the space that motor 3 and grid 4 surround forms water vapor mixing chamber, and described water vapor mixing chamber communicates with atmosphere through air suction pipe 1, and the end that described air suction pipe 1 stretches into described mixing section stretches to described impeller 6.

Motor 3 is fixed on below of whole aerator device, prevents cable winding.Motor 3 connects via rotating shaft 5 and impeller 6, and motor 3 impeller 6 are rotated.Water enters water vapor mixing chamber by grid 4, and motor 3 drives impeller 6 high speed rotating form vacuum, under pressure, by air suction pipe 1 suck air, realizes gas-vapor mix, under the promotion of impeller 6, gas-vapor mix is flowed through by volute 8 releases.The flow reaction force acts is in volute 8, and volute 8 is realized 360 ° of rotations under the current reactive force.For same point, also can reach the effect of intermittent aeration.

Claims

1. volute hydraulic rotational plug flow aerator, it is characterized in that, this aerator comprises motor (3) and volute (8), described motor (3) is fixed on below of this aerator, described motor (3) connects with impeller (6) via rotating shaft (5), described impeller (6) upwards stretches into described volute (8), described motor (3) drives described impeller (6) and rotates, described volute (8) is supported by bracing or strutting arrangement (9), described bracing or strutting arrangement (9) embeds stationary installation (2) by roller bearing (7), between described motor (3) and the described stationary installation (2) grid (4) is set, described volute (8), bracing or strutting arrangement (9), stationary installation (2), the space that motor (3) and grid (4) surround forms water vapor mixing chamber, described water vapor mixing chamber communicates with atmosphere through air suction pipe (1), and the end that described air suction pipe (1) stretches into described water vapor mixing chamber stretches to described impeller (6).