CN200955028Y

CN200955028Y - Integrated aeration apparatus

Info

Publication number: CN200955028Y
Application number: CNU2006201230247U
Authority: CN
Inventors: 安叙伦; 任天柏
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-28
Filing date: 2006-07-28
Publication date: 2007-10-03
Anticipated expiration: 2016-07-28

Abstract

The utility model discloses an integrated aeration device, and consists essentially of a suspended substance collector, a jet aerator, a mixed agitator and a submersible sewage pump that are all fixed on one support. The jet aerator is a multi-jet and a secondary jet aerator; the water inlet of the submersible sewage pump is upward and is provided with a collector that can filter water and the collector can directly suck rich oxygen water at water surface. The jet aerator of the utility model has the multi-functions of free movement and multi-function, namely, suspended matter collecting, efficient aeration and oxygenation and mixture stirring, and has the advantages of free movement.

Description

Integrated aerator

Technical field

The utility model relates to a kind of sewage disposal device, particularly relates to the improvement to the aerator and the biological fluidized bed of polluted-waters such as oxidation pond.

Background technology

Because the develop rapidly of cities and towns industry and improving constantly of people's lives, the sewage emissions amount grows with each passing day, and has caused the pollution of water surrounding and the reduction of water resources utilizability thus.Though sewage work has been set up in some cities, national wastewater treatment rate has only about 25%.Basically sewage is not handled in the rural area, concentrated the coming in the pond that has, what have enters in the river course, and its basic reason is that rural economy is also relatively backward, takes out substantial contribution and administers also relatively difficulty.

Oxidation pond claims biological pond or stabilization pond again, is a kind ofly to utilize natural pond to carry out the structures that are used for disposing of sewage after certain manual amendment.The aerator of sewage disposal is varied, and the jet-flow aeration equipment that is applied in the oxidation pond is more, but existing jet-flow aeration equipment all exist many shortcomings as:

The one-level jet aerator.Jet-flow aeration equipment adopts single nozzle, and the one, because single nozzle sub-thread current are little with suction air contact area, jet breaks little, the gas of carrying secretly is also little, so its oxygenation capacity is lower; The 2nd, ejector and submersible sewage pump product direct connection, the submersible sewage pump suction inlet is following, what pump was drawn like this is pond sole degree anoxybiotic water and the more water of silt, not only can not be extracted into the water surface heavy-oxygen-enriched water and increase oxygen level, and the long-term nozzle that weares and teares at a high speed of silt, nozzle diameter is strengthened, and severe patient can not be bled.

Big flow is made the stream aerator.It is that its main drawback is with existing fluidics and the improved a kind of stream device of making of water jet device:

(1) first step is a single nozzle, and the nozzle negative pressuren zone has been introduced big water gaging

The shortcoming of single nozzle sub-thread current as mentioned above.The ejector of gas-vapor mix is the air oxygenic aeration in sewage in order to utilize the water jets suction to need mainly, the suction chamber planted agent mainly is provided with air intlet, but the main negative pressuren zone of this kind design is the Taper Pipe of back open ports, logical with the pond water, the negative pressure that water jets forms becomes main suction current, and the suction chamber of bleeding has been located at outside the main negative pressuren zone, it is again a very circlet shape chamber, rate of air sucked in required is very little like this, has lost gas-vapor mix ejector major function, and oxygenation capacity is fallen suddenly.

(2) trunnion sectional area and the ratio of nozzle cross-section are greater than 5

The area that the ratio of trunnion sectional area and jet area is called ejector is than m, and m is the key parameter that influences the ejector performance, has efficient point near the m=3, and the efficiency eta of ejector is fallen successively suddenly when m＜2.4 or m＞4.When m＞4, though throughput ratio has increased, η is by dropping to suddenly below 25% below 18%, and pressure ratio h drops to below 0.15 by 0.35 simultaneously, and the jet-flow aeration oxygenation capacity of this kind design that hence one can see that is very poor.

(3) the submersible sewage pump suction inlet is downward, anoxic water and silt at the bottom of the suction pond, and the disadvantage that causes is same as above.In a word, the characteristic that aerator has been sacrificed the jet oxygenation is flowed in making of this structure, is converted into the big flow of acquisition and is used to make stream, so can only be called " making the stream machine ".Contaminated water body will carry out aerobe to be handled, and mainly answers aeration aerating, if only at the steady plug-flow of same elevation water level, be difficult to obtain the oxygenation capacity of needs.If mainly carry out plug-flow, a small amount of aeration aerating can make operation hours long again, and it is many to consume electric power, and dynamic efficiency is very low.If specialize in source of the gas, make the complicated and cost raising of equipment again, so it is not good jet-flow aeration equipment at the water body peripheral hardware.

The bio-contact oxidation equipment that uses with the jet-flow aeration coordinative composition of equipments is fixed bed mostly, these traditional fixed beds exist following shortcoming: different fillers in filling in the bed, as plastic honeycomb filler, regular plastic net filler, plastics soft-filler or the like, these fillers are not easy obstructions, it is exactly easy to be filmed not, not shock-resistant again, use soft-filler can form the fibrous bundle caking again, clean difficulty.The fixed bed floor space is big, bear load change impact poor, uniform contact efficient is very low.

Summary of the invention

The utility model provides a kind of raising wastewater treatment rate for overcoming deficiency of the prior art, reduces the sewage disposal device of cost of sewage disposal.

The utility model purpose is to be achieved by following technical proposals:

The utility model provides a kind of integrated aerator, it mainly is made up of suspended substance collector 4～6, jet aerator 7～12, mixing agitator 13～14, submersible sewage pump 3, support 2, and wherein the suspended substance collector comprises adjusting screw 4, cylindrical shell 5, filter bag 6; Jet aerator is made up of first step arc porous nozzle 7, air suction pipe 8, suction chamber 9, mixing tube 10, taper secondary nozzle 11, secondary trunnion 12; Mixing agitator is made of stirrer stand 13, pusher stirring rake 14.Described suspended substance collector is connected with the import and export of submersible sewage pump respectively with jet aerator; Mixing agitator is connected with the outlet of jet aerator, and each parts is fixed on the support.

The first step nozzle of described jet aerator is arc or dull and stereotyped porous shape, or inlays multi-nozzle shape onboard; The one-level mixing tube mouth of pipe of jet aerator is a double leaf curvilinear equation shape; Partial incremental its throughput ratio of level of jet aerator is pressed area than m＞4 scopes design, and 4～8 flow deflectors are arranged in the secondary nozzle, has the prosopyle on the secondary trunnion, and the trunnion end is equipped with pusher stirring rake.

Portable biological fluidized bed is made up of net cage, support and granular filler, and support is welded by shaped steel, and the bed body of being made up of net cage and support can move freely, and suspensible granular filler is housed in the net cage.The profile of granular filler is a hollow cylinder, and height is greater than external diameter, and surfaces externally and internally is a zig-zag, and there is cross frame the centre, and material is plastics, can be suspended in the water after the biofilm.

The utility model compared with prior art, jet aerator has the multiple function that is easy to collect suspended substance, high efficient aeration oxygenation, mixing stirring and plug-flow, and portable biological fluidized bed possesses advantages such as simple structure, big, the easy biofilm of packing specific area, physical strength height, life-span length.

Description of drawings

Fig. 1 is the integrated jet-flow aeration equipment of a utility model synoptic diagram;

Fig. 2 is arc multi-hole type nozzle arrangements figure in the integrated aerator of the utility model;

Fig. 3 is the sectional view of the portable biological fluidized bed of the utility model;

Fig. 4 is the utility model granular filler structure iron;

Embodiment

Below in conjunction with accompanying drawing, integrated aerator of the utility model and portable biological fluidized bed are described in further detail:

See figures.1.and.2, the integrated aerator of the utility model mainly is made up of suspended substance collector 4～6, jet aerator 7～12, mixing agitator 13～14, submersible sewage pump 3, support 2.

Described suspended substance collector is used to collect the suspended substance of on-swimmer's pool, and it is made up of adjusting screw 4, cylindrical shell 5, filter bag 6.Cylindrical shell 5 is retractable cylindrical shells, it highly can be regulated, and also can with keg float suction nozzle be erected on mouth piece, and filter bag 6 tops are provided with a gland, this gland is a filtering net, a spot of suspended substance can be collected in the filter bag and regularly remove, if water body is darker, suspended substance is more can be fixed on cylindrical shell 5 on the floating drum, remove filter bag 6, and submersible sewage pump 3 outlet added a Y-tube, and connecting top hose and directly suspended substance is extracted out outside the pond and filtered, the water after the filtration refluxes in the pond again.

Described jet aerator is made up of first step arc porous nozzle 7, air suction pipe 8, suction chamber 9, mixing tube 10, taper secondary nozzle 11, secondary trunnion 12.The jet angle of described first step arc porous nozzle 7 compiles a bit, also can make plate shaped porous plate.Multi-jet multiple jets makes that gas is easier to be scurried between the jet, makes the jet quickening of breaking, and carries more that the gas of volume rushes at mixing tube 10 secretly, and this design can increase rate of air sucked in required about 10%.Described mixing tube 10 entrances are designed to meet the shape of double leaf curvilinear equation.Submersible sewage pump 3 forms high-speed jet with water surface heavy-oxygen-enriched water through nozzle 7, forms negative pressuren zone at suction chamber 9, and water surface outer air is sucked in the ejector.Described partial incremental its throughput ratio of level is pressed area than m＞4 scopes design, 4～8 flow deflectors are arranged in the described taper secondary nozzle 11, secondary trunnion 12 ends are equipped with pusher stirring rake 14, can produce additional rotating in a circumferential direction like this, help improving and mix and aspiration.Described secondary trunnion 12 cross sections are calculated desired flux values by the ejector area than with the throughput ratio opisometer, choose in the scope of m＞4.On the described secondary trunnion 12 prosopyle is arranged, the secondary trunnion of expansion is again the whole bearing of aerator part, and design forwardly has easy-to-mount pusher stirring blade 14, can increase and decrease according to processing requirement, can add strong mixing and plug-flow.

Mixing agitator is made of stirrer stand 13, pusher stirring rake 14.Described suspended substance collector is connected with the import and export of submersible sewage pump 3 respectively with jet aerator, and submersible sewage pump 3 is for being modified into the upside-down mounting form, and suction inlet is last, and electric control box joins outside the underwater cable 1 of pump and the pond.Each parts is fixed on the support 2, can put arbitrarily in the water, moves flexible.

With reference to Fig. 3 and Fig. 4, the portable biological fluidized bed that matches with aerator is made of support 21 and net cage, support 21 is welded by shaped steel, net cage is made of

water inlet plate

22,23, water outlet plate 25 and baffle plate, water inlet plate 22 is following water inlet limit, water outlet plate 25 goes out the waterside above being, each side plate is porous plate (or net), and the aperture is less than the filler diameter.Baffle plate 27 is a rear deflector door, and baffle plate 24 is a left baffle, prevents the short stream of current.Granular filler 28 can be suspended in the net cage, and the whole bed body can freely be moved, simple light.

Described granular filler 28 is hollow cylinders, and the surfaces externally and internally indention forms many lateral trench, and there is cross frame at the intermediate hollow place as stiffening web.The height of filler is greater than outside diameter, and material is plastics, and proportion can make different specification size less than 1.

Integrated aerator of the utility model and biological fluidized bed not only can be handled the sewage in the oxidation pond, also can handle polluted-waters such as river, river, lake.

Claims

1. integrated aerator, it mainly is made of jet aerator, mixing agitator, submersible sewage pump (3) and support (2), it is characterized in that it also comprises a suspended substance collector, its described collector is made of adjusting screw (4), cylindrical shell (5) and filter bag (6); Jet aerator is made up of first step porous nozzle (7), air suction pipe (8), suction chamber (9), mixing tube (10), taper secondary nozzle (11), secondary trunnion (12); Mixing agitator is made of stirrer stand (13), pusher stirring rake (14), and above-mentioned suspended substance collector is connected with the import and export of submersible sewage pump respectively with jet aerator, and mixing agitator is connected with the outlet of jet aerator, and each parts is fixed on the support.

2. integrated aerator according to claim 1 is characterized in that, the first step porous nozzle of described jet aerator is arc or dull and stereotyped multi-nozzle shape, and the nozzle spout is circle hole shape or inlays multi-nozzle shape.

3. integrated aerator according to claim 1 and 2 is characterized in that, the mixing tube mouth of pipe of described jet aerator is a double leaf curvilinear equation shape.

4. integrated aerator according to claim 1 and 2, it is characterized in that, partial incremental its throughput ratio of level of described jet aerator is pressed area than m＞4 scopes design, and 4～8 flow deflectors are arranged in the secondary nozzle, and secondary trunnion end is equipped with pusher stirring rake.

5. integrated aerator according to claim 1 and 2 is characterized in that the submersible sewage pump water-in of described suspended substance collector makes progress.