CN2203298Y

CN2203298Y - Deep pneumatic type aerator

Info

Publication number: CN2203298Y
Application number: CN94217865U
Authority: CN
Inventors: 戴自梁; 姜兆春
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-02
Filing date: 1994-08-02
Publication date: 1995-07-12
Anticipated expiration: 2004-08-02

Abstract

The utility model relates to a deep water pneumatic type aerator used for sewage treatment in an environmental protection project. The utility model is characterized in that a fan group is arranged on the ground and is connected with an air inlet barrel in the center of a floating barrel on the water surface through an air inlet pipe which is connected with an outer shell of an air chamber; an outlet at the lower part is connected with an air collecting cover, and a submersible electric machine is arranged in an air inlet chamber; a dispersion wheel extends into the air collecting cover with holes, and the bottom is provided with a protective net. When compressed air enters the air chamber through the air inlet pipe, under the action of the dispersion wheel, oxygen is rapidly dissolved in the water, thus the organism grows rapidly to lower COD and BOD, and the purpose of sewage purification is reached. The utility model has the advantages of high oxygenation efficiency, large water entry depth and low energy consumption.

Description

Deep pneumatic type aerator

The utility model relates to a kind of aerating apparatus in the environment-friendly engineering, particularly deep water air pressing type aerating apparatus.

Sewage work in the environment-friendly engineering all adopts general in the world microporous aeration device at present, and this device adopts Ae ₂O ₃The sintering aeration head is the bigger easily worn part of resistance, also wants the system-down maintenance, influences work, and the underwater penetration of aerating apparatus has only 5.2-6.8 rice simultaneously, and oxygenation efficient has only 1.69kgO ₂/ kwh also has a kind of self-priming deep water aerating apparatus abroad, and is though underwater penetration can reach 7 meters, all right at depth of water 2-3 rice, sink by 4 meters to 6 meters, consumed power rises with regard to straight line again, and the oxygen of suction sharply descends, because adopt the right angle outlet, resistance is big, efficient is low.

The purpose of this utility model is to overcome shortcoming that above-mentioned prior art exists with not enough, and a kind of underwater penetration oxygen efficiency height that heightens is provided, the simple deep water air pressing type of device structure aerating apparatus, thus improved the decontamination effect improving of disposing of sewage.

The purpose of this utility model is achieved in that

Deep water air pressing type aerating apparatus comprises floating drum, counterweight valve, submersible machine, dispersion wheel, protecting wire net, it is characterized in that:

A) on ground or the bank by adorning a blower unit, be connected by center air induction mast in the floating drum on inlet pipe and the water surface;

B) air induction mast is connected with the wind box shell upper by flange, and the outer casing underpart outlet is connected with gas skirt with holes, and submersible machine is housed in the shell, and its rotation axis is fixed a dispersion wheel;

C) dispersion wheel stretches in the gas skirt, and protecting wire net is equipped with in the bottom.

Wherein outer casing underpart outlet is " bowl " type, during fixed aerating apparatus combination, can be without floating drum, in increase bracing frame or the lifting of gas skirt bottom or be fixed on the aeration pool wall; Every arranging device can be staggered, and is given the aerator of two misarrangements row by central induction pipe.

Owing to take technique scheme, make the utility model compared with the prior art have oxygenation efficient height, underwater penetration is big, and watt consumption is low, and is simple in structure, advantage easy to maintenance and effect, and can utilize the expose to the sun blower fan of system of existing micropore, aeration tank.

Description of drawings:

Fig. 1 is the aerating apparatus structural representation.

Below in conjunction with accompanying drawing embodiment the utility model technology is further specified:

Aerating apparatus, on ground or the bank by a blower unit (10), by inlet pipe (11) pressurized air is delivered in the floating drum on the water surface (3) in the intracardiac air induction mast (1), air induction mast is connected with wind box shell (6) top by flange (4) again, the outer casing underpart outlet is connected with gas skirt with holes (8), and submersible machine (5) is housed in the wind box shell, and its rotation axis is fixed a dispersion wheel (7), dispersion wheel stretches in the gas skirt, and protecting wire net (9) is equipped with in the bottom.

During use,, make aerating apparatus in the suitable degree of depth by regulating counterweight valve (2), start gas blower, pressurized air enters in air induction mast and the wind box, under submersible machine rotates, rotation along with dispersion wheel, air fully contacts with the water of deep layer, because the deep water temperature is low, has strengthened the dissolution rate of oxygen, produce aeration process simultaneously, make biological growth the in the sewage, thereby reduced COD, BOD value, reach sewage purification.

The underwater penetration of this device can reach 7.5 meters, adds the rotation of dispersion wheel and brings 2.5 meters of air underwater penetrations into, counts water depth and can reach 10 meters, under compressed-air actuated effect, not only the degree of depth is big but also oxygen is big in the deep water dissolution rate, and bubble is little, and the outlet of bowl type makes dispersion wheel disperse effectiveness to improve, when pressurized air enters, as long as air feed is pressed to the depth of water,, deduct 1.5 meters of suction capacities as 6 meters of the depth of waters, be 6-1.5=4.5(m) water column, promptly the power consumption value and the depth of water are irrelevant during 0.45 atmospheric gas pressure.Therefore during deep water watt consumption to be used for the value of dispersion process constant.

Fixed aerating apparatus can not established floating drum, increase below the gas skirt bracing frame with or be fixed on the aeration pool wall; when disposing of sewage; in 7.5 meters wide sewage lagoons, can adopt two row's aerating apparatuss, and be staggered; supply gas tubulature to two aerators of arranging by central authorities; can increase contact area like this, prevent that repetition aeration or non-uniform phenomenon from producing, when a table apparatus need overhaul; do not need all to shut down maintenance, only stop to overhaul this table apparatus and get final product.

Claims

1, deep water air pressing type aerating apparatus comprises floating drum, counterweight valve, submersible machine, dispersion wheel, protecting wire net, it is characterized in that:

2, aerating apparatus according to claim 1 is characterized in that the outer casing underpart outlet is " bowl " type.

3, aerating apparatus according to claim 1 when it is characterized in that the combination of fixed aerating apparatus, can increase bracing frame or lifting or is fixed on the aeration pool wall without floating drum in the gas skirt bottom.

4, aerating apparatus according to claim 3, when it is characterized in that fixed aerating apparatus makes up, every arranging device can be staggered, and gives two aerators of arranging by central induction pipe.