CN2471772Y

CN2471772Y - Forced aeration apparatus

Info

Publication number: CN2471772Y
Application number: CN00256384U
Authority: CN
Inventors: 张涤非
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-11
Filing date: 2000-11-11
Publication date: 2002-01-16
Anticipated expiration: 2010-11-11

Abstract

The utility model relates to a device for urban sewage treatment or sewage degradation by other biochemical methods, which comprises a pool body, a blower, an air duct, a micropore aeration pipe, a piping pump and an aeration pipe. The aeration pipe is arranged in the pool body; the upper end of the aerator pipe is positioned at the end of the water body and below the liquid level, and the tube body is inclined downwards; the lower opening of the tube body is nearby the bottom of the pool; the piping pump is arranged inside the aeration pipe and is positioned at the upside of the aeration pipe; the micropore aeration pipe connecting with the air duct is arranged inside the aeration pipe and is positioned at the lower part of the piping pump, and is connected with the blower through theair duct. The utility model has the advantages that: the oxygenation efficiency can be improved; the energy consumption can be reduced; the operating costs can be saved; the aeration equipment can be reduced; the equipment investment can be saved; the maintenance is convenient and the mixing result inside the pool is good.

Description

The forced action type aerating apparatus

The utility model relates to a kind of Treating Municipal Sewage or other can adopt the device of the sewage of biochemical method degraded.

Sewage for available biochemical method degraded carries out biochemical treatment, can adopt the blast aeration waste disposal plant.Existing apparatus generally is made up of pond body, blower fan, airduct, micro-hole aerator, underwater propeller etc., shown in accompanying drawing 1 (is example with ring-like biochemistry pool).1. being the pond body among the figure, 2. is blower fan, 3. is airduct, 4. is micro-hole aerator, 5. is underwater propeller, 6. is liquid level.

Principle of work is: cultivate breeding a large amount of microorganisms (sewage treatment industry claims active sludge) in the water body, contain and mix with active sludge after organic sewage enters biochemistry pool.Use blower fan 2. 3. to feed a large amount of air to airduct, and through micro-hole aerator 4. to the water body aeration, airborne oxygen is partially dissolved in water body.Active sludge is after obtaining a large amount of oxygen supplies, and movable aggravation, breeding amount increase, thereby the organism in the mass consumption water body makes organism be converted into NO ₂, CO ₂And H ₂O.So just played the effect that purifies water.At the bottom of the pond operated by rotary motion underwater propeller 5., its effect is to make water body have certain flow rate, avoids active sludge precipitation, also plays the effect that water body is all mixed simultaneously.

This device exists following than significant disadvantages: 1, air rises to the water surface at the bottom of the pond and lasts shortlyer, and airborne oxygen can not fully be dissolved in water body (generally only have an appointment 10% oxygen can be dissolved in the water body), and energy wastage is very serious; 2, the method for taking to strengthen the depth of water just requires blower fan that stronger blast is arranged to increase dissolved oxygen amount, and this requires the expenditure of energy equally; 3, the air capacity of feeding water body is big, has increased the investment of air blast, aerator and civil engineering.4, subsea equipment is many, spoilage height, and maintenance needs the blow-down pit body when changing water-bed equipment, maintenance, safeguard extremely inconvenient; 5, water body top and the bottom exchange of substance is few, all mixes up with poor.

The purpose of this utility model is to overcome the shortcoming of existing apparatus, and a kind of waste disposal plant is provided, and this device can improve oxygen-transfer efficiency, cuts down the consumption of energy, and saves running cost, reduces investment outlay, and is convenient to maintenance, repair.

The forced action type aerating apparatus is made of pond body, blower fan, airduct, micro-hole aerator, in-line pump, aeration tube, and aeration tube is installed in Chi Tizhong, its upper end be positioned at water body top, below the liquid level, aeration tube is tilted to down, its end opening near the pond at the bottom of; In-line pump is installed in the aeration tube, is positioned at aeration tube top; The micro-hole aerator that is connected on the airduct is installed in the aeration tube, is positioned at below the in-line pump, and links to each other with blower fan by airduct.

The forced action type aerating apparatus is compared with former blast aeration waste disposal plant and is had the following advantages:

1, is forced in aeration tube, mix for a long time owing to air, thereby increases substantially the meltage of oxygen in water body, thereby can improve oxygen-transfer efficiency, cut down the consumption of energy, save working cost with water body.

2, because oxygen-transfer efficiency improves the aerator in can corresponding minimizing waste disposal plant; And micro-hole aerator is positioned at water body top, has reduced the blast requirement of blower fan; Thereby can save facility investment.

3, operational outfit is positioned at water body top, is convenient to maintenance, repair.

4, the aeration in-pipe flow strengthens water body top and the bottom exchange of substance amount from top to bottom, all mixes effective.

Accompanying drawing 2 (being example with ring-like biochemistry pool still) is the utility model synoptic diagram.1. being in-line pump among the figure, 2. is aeration tube, 3. is blower fan, 4. is airduct, 5. is micro-hole aerator, 6. is the pond body, 7. is liquid level.

Do further detailed description below in conjunction with 2 pairs of the utility model of accompanying drawing: by in-line pump 1. make the pond body 6. the water on top force to enter aeration tube 2., current flow into body bottom, pond from top to bottom in aeration tube, the aeration tube inwall is established spiricle, makes current produce eddy flow; Use blower fan 3. to 4. bubbling air of airduct, and by micro-hole aerator 5. to the water body aeration in the aeration tube.Current by aeration tube 2. end opening flow out from body bottom, pond, water body around driving, make the pond at the bottom of water body keep suitable flow velocity, avoid the active sludge precipitation.Residual gas rises to water surface at the bottom of by the pond, and the oxygen in the residual gas continues to dissolve in water, simultaneously water body is stirred, and produces necessarily all to mix effect.

The utility model also can be used for chemical industry, food etc. need be in liquid in the system of dissolved oxygen or other gas.

Claims

1, a kind of forced action type aerating apparatus is made of pond body, blower fan, airduct, micro-hole aerator, in-line pump, aeration tube, it is characterized in that aeration tube is installed in Chi Tizhong, its upper end be positioned at water body top, below the liquid level, its end opening near the pond at the bottom of; In-line pump is installed in the aeration tube, is positioned at aeration tube top; The micro-hole aerator that is connected on the airduct is installed in the aeration tube, is positioned at below the in-line pump, and links to each other with blower fan by airduct.

2,, it is characterized in that the aeration tube inwall is provided with spiricle according to the described forced action type aerating apparatus of claim 1.

3, according to claim 1 or 2 described forced action type aerating apparatuss, it is characterized in that aeration tube is tilted to down.