CN2727166Y

CN2727166Y - Swirl mixed strong cyclic aerator

Info

Publication number: CN2727166Y
Application number: CNU2004200935025U
Authority: CN
Inventors: 王金利
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-10
Filing date: 2004-09-10
Publication date: 2005-09-21
Anticipated expiration: 2014-09-10

Abstract

The utility model relates to a swirl mixed strong cyclic aerator which is specially adapted to the large size sewage treatment, comprising a first cutter 1, a second cutter 2, a spiral organ 3, a bracket 4 and an admission line 5. The utility model is characterized in that the cutters and the spiral organ of the aerator comprise a guide shell body whose top and bottom are communicated. The inners of the cutters are accompanied with umbrella shaped or ball shaped cutting heads. Excellent stirring effect is generated by the utility model using the functions of the guide shell body and the lower spiral organ, agitation power is not additionally increased, energy consumption is saved and the transfer efficiency of oxygen gas is high.

Description

Eddy flow mixes the strong cyclic aerator

Technical field the utility model belongs to a kind of aerator, is specially adapted to large-scale sewage treatment project aeration tank and agitated pool.

Background technology water treatment field, the purpose of aeration mainly contain 2 points: the one, in the waters, charge into oxygen; The 2nd, remove dissolved hazardous and noxious substances in the waters by aeration, as carbonic acid gas/hydrogen sulfide etc.The principal mode of aerator has surface aeration, pressurized air aeration and three kinds of forms of mixed aeration.Wherein mixed aeration, be that the symphyogenetic aeration effect of mechanical stirring and gas blower is better.The index of estimating the aeration effect is to shift the efficient of oxygen (being actual dissolved oxygen and the ratio that blasts the oxygen in waters) expression, represents with the efficient that consumes unit power transfer oxygen or rather, can take all factors into consideration the factor of energy consumption in the lump like this.At gas blower pressure, under the situation of term harmonizations such as water environment, this efficient that consumes unit power transfer oxygen is obviously relevant with the level of agitation in waters.To bottom sludge stirring poor effect, the mud that is deposited in the bottom can not well contact with air aerator in the market such as micro-hole aerator, air diffusion aerator, aeration tube etc., and clearance is lower.The purpose of this utility model is exactly in order to overcome above-mentioned deficiency, to save energy consumption, providing a kind of consumption unit power to shift the oxygen efficiency height, have stirring capacity, nonclogging novel blast aeration device.

Eddy flow mixing strong cyclic aerator has air demand and service area is bigger, coefficient of oxygen utilization and dynamic efficiency are higher, volume is little in light weight, be convenient to install, transport, advantages such as long service life, be trade effluents such as papermaking, textile printing and dyeing, wool spinning are knitting, oil, chemical industry, beer food, medical process hides and city may not aquaticization treatment project in the energy-saving and aerating device of new type ideal.Because it has powerful agitating function, can be used as acid-base neutralisation and stir, mix whipping device simultaneously.

Summary of the invention the utility model is achieved in that and comprises first cutting unit 1, second cutting unit 2, spiral organ 3, support 4, intake ducting 5, it is characterized in that bonding together after the alternate arrangement of stacked of 6～8 first cutting units of described aerator constituting and go up guide shell with second cutting unit, spiral organ constitutes guide shell down, the bonding back of upper and lower guide shell is being fixed with outside stainless steel stent, form the upper and lower stream guiding barrel that communicates, whole stream guiding barrel is welded on the stainless steel inlet pipe of bottom by stainless steel stent; The cutting unit top can increase reverberator and strengthen stirring effect in addition.Each cutting unit interior periphery has umbrella shape, sphere or the conical cutting head of even layout; Sphere or goalpost shape splitter are housed in the middle of the spiral organ internal screw plate.The utility model utilizes the effect of stream guiding barrel, bottom spiral organ and top reflector, produces good stirring effect, does not additionally increase and stirs power, has saved energy consumption, oxygen transfer efficient height.

Pressurized air is through the ejection of aerator inlet pipe air during aeration, and the air diameter reaches 20mm, and air pressure is identical with hydraulic pressure, and the pressure-losses is little, can not stop up fully.The ejection air sprays to spiral organ internal shunt device, cut for the first time through splitter, produce bubble, bubble is after rotating through spiral plate, radially mix upwards spiral buoyance lift, bubble diminishes and upwards spiral rise gradually, produces pressure during by the aerator guide shell and falls, because gas is proposed effect, makes about 1.3 times water suck aerator simultaneously.Air and the water brute force upwards buoyance lift that circles round, bubble produces powerful centrifugal force the fierce collision of sky G﹠W is mixed through cutting unit mushroom cutting head, and stingy race is become micro-bubble, and contact area constantly increases, and oxygen transfer rate improves rapidly.Because air water mixed solution density is less, form very big upflow velocity in this process, the water and the active sludge that drive the bottom, aeration tank enter the aerator guide shell, and the blended air water is upwards gone out with sudden force.Strong circulating water flow forms water circulation at the bottom of making air water rush at the pond, driving the part micro-bubble moves downward, increasing gas ducks in drink the residence time, blow afloat bottom mud simultaneously, make bottom sludge participate in circulation, realize the mixing of water, gas and bottom active sludge, the lifting and the oxygen-transfer efficiency of active sludge improved a lot.

The utility model utilizes aeration, and nationality helps reverberator can produce good level of agitation, can not add any mechanical stirring.Save land used, reduce energy consumption, improved the efficient that consumes unit power transfer oxygen.

The utlity model has following advantage:

1, do not produce obstruction, freely intermittent operation fully.

Produce powerful stirring when 2, moving, the current strong cyclic spreads all over the pond, and non sludge is piled up at the bottom of the pond.

3, no movable members, the operation trouble free can realize non-maintaining.

4, long service life can trouble free operation 20 years.

5, running cost is low, saves 25% above electric power than air diffusion aerator, and the electricity charge of saving and maintenance cost were regained in 2 years

Description of drawings Fig. 1 is the aerator structural representation

Each label is represented successively among the figure: first cutting unit 1, second cutting unit 2, spiral organ 3, support 4, intake ducting 5

Fig. 2 is the spiral organ synoptic diagram of aerator

Fig. 3 is the cutting unit synoptic diagram of aerator

Embodiment comprises first cutting unit 1, second cutting unit 2, spiral organ 3, support 4, intake ducting 5 referring to accompanying drawing one.Aerator top is by 3 first cutting units 1 and 3 second cutting unit 2 alternate layouts, bond together after the stack to constitute and go up guide shell, spiral organ 3 constitutes guide shell down, on the bonding back riveting of the upper and lower guide shell stainless steel stent externally, form the upper and lower stream guiding barrel that communicates, whole stream guiding barrel and stainless steel stent are welded on the stainless steel inlet pipe of bottom, and inlet pipe one end is a blind plate, the other end soldering stainless steel flange.Cutting unit inside all has the umbrella shape cutting head, and cutting head arranges evenly that along periphery first cutting unit 1 has 6 cutting heads, and second cutting unit 2 has 12 cutting heads, and cutting head evenly staggers in the two-layer cutting unit; The half elliptic spiral plate of 2 arranged crosswise is housed in the spiral organ, has goalpost shape splitter in the middle of the spiral plate.Single cutting unit and spiral organ adopt the moulding of ABS one-step casting.

The inlet pipe flange is connected with blast main during installation, and the inlet pipe bottom supports is fixed at the bottom of the pond, during aeration with expansion bolt, pressurized air is through the ejection of aerator inlet pipe air, and the air diameter reaches 20mm, and air pressure is identical with hydraulic pressure, the pressure-losses is little, can not stop up fully.Spray the air spiral buoyance lift that makes progress and produce pressure by the aerator guide shell and fall, propose effect by gas, make the water of about 1.3 times of air enter aerator simultaneously.Air and the water brute force upwards buoyance lift that circles round through cutting unit umbrella cutting head, produces powerful centrifugal force the sky G﹠W is mixed, and air is become micro-bubble.Well-mixed air water is upwards gone out with sudden force.After going out stream guiding barrel, circulating water flow rushes at the bottom of the pond air water, and bubble moves downward, and increases gas and ducks in drink the residence time, and dissolved oxygen efficient improves, and blows afloat bottom mud simultaneously, makes bottom sludge participate in circulation by guide shell.This aerator utilizes the effect of stream guiding barrel, bottom spiral organ and top reflector, produces good stirring effect, does not additionally increase stirring power and just can make bottom mud participate in circulation, has saved energy consumption.

Claims

1, eddy flow mixes the strong cyclic aerator, comprise first cutting unit 1, second cutting unit 2, spiral organ 3, support 4, intake ducting 5, reverberator 6, it is characterized in that described aerator cutting unit, spiral organ constitute the upper and lower stream guiding barrel that communicates, cylindrical shell top has reverberator.

2, eddy flow according to claim 1 mixes the strong cyclic aerator, it is characterized in that first cutting unit 1 and the 2 alternate collocation installations of second cutting unit, quantity is at 5～8 groups, after adopting gluing between cutting unit and spiral organ, the outside connects with stainless steel stent riveted joint or bolt again, and support is fixed on the inlet pipe again.

3, eddy flow according to claim 1 and 2 mixes the strong cyclic aerator, it is characterized in that cutting unit inside has umbrella shape, sphere, conical cutting head, and cutting head quantity is 6～5.

4, mix the strong cyclic aerator according to claim 1 or 2 or 3 described eddy flows, it is characterized in that in the middle of the spiral organ internal screw plate sphere or goalpost shape splitter being housed.

5, mix the strong cyclic aerator according to claim 1 or 2 or 3 or 4 described eddy flows, it is characterized in that upper reflector is down umbrella shape.

6, eddy flow according to claim 1 mixes the strong cyclic aerator, it is characterized in that cutting unit, spiral organ adopt the die casting of corrosion resistant engineering plastics.