CN205204896U

CN205204896U - A prevent blockking up microbubble aeration equipment for sewage treatment

Info

Publication number: CN205204896U
Application number: CN201520977090.XU
Authority: CN
Inventors: 赵逸男
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2016-05-04
Anticipated expiration: 2025-11-30

Abstract

The utility model relates to a microbubble aeration equipment who blocks up for the oxygenation aeration of sewage treatment in -process aerobic treatment section. The device is the cylinder, and include inner tube, urceolus, intake pipe, air nozzle, cross water tray, anemostat isotructure, broken room of the intermural formation of urceolus and snakelike water route in the the device, the air water mixture gets into broken room and snakelike water route through the anemostat to here repeatedly many secondary shock broken with disturb the dispersion, produce small bubble. The utility model discloses not that the micropore that lets air after the pressurization crowd aeration equipment (head) surface produces the microbubble, consequently, all do not set up the micropore on the device surface with inside, avoided the production of jam problem.

Description

A kind of anti-clogging plug microbubble aerating apparatus for sewage disposal

Technical field

The utility model is a kind of anticlogging microbubble aerating apparatus, for the oxygenation aeration of aerobic treatment section in sewage treatment process.

Background technology

Aeration is an important procedure in sewage treatment process.Under equal air flow, the coefficient of oxygen utilization of aeration efficiency and aerating apparatus has positive correlation, and coefficient of oxygen utilization is higher, and aeration efficiency is higher.Coefficient of oxygen utilization is relevant to the particle diameter of the bubble that aerating apparatus produces, and bubble diameter is less, and coefficient of oxygen utilization is higher.Aeration efficiency affects energy consumption and the cost of sewage disposal, and aeration efficiency is higher, the ton water treatment energy consumption of sewage and processing cost lower.

In order to obtain higher aeration efficiency, the aerating system that current sewage work uses is generally micro-pore aeration system, and whole system is made up of three major portions such as roots blower, gas pipe line and microporous aeration devices (head).Roots blower sends air blast pressurization to gas pipe line, air is transported to aerating apparatus (head) through pipeline, aerating apparatus (head) can be made up of the differing materials such as rubber, pottery, gather small pore on surface, air is extruded from these small pores under pressure, forming microbubble enters in water, completes aeration oxygen replenishing.

In above-mentioned micro-pore aeration system, the parts producing microbubble are aerating apparatuss (head) of end, and the aperture of the micropore gathered in the bubble diameter of generation and surface is proportionate, and aperture is less, and bubble diameter is also less.The bubble diameter that at present, microporous aeration device (head) produces, 50 microns ~ 1 millimeter scope, there is not yet the report of bubble diameter less than 50 microns.

In sewage disposal, aeration is mainly used in the aerobic treatment section of Two-Stage Biochemical method, and containing a large amount of microorganism flco in sewage, the micropore gathered in aerating apparatus (head) surface is easy to produce blocking due to the attachment of microorganism.After partial pore blocking, because the pressure in aerating apparatus (head) is uneven, easily cause the damage of other micropore, cause bubble diameter to become large or pipeline pressure uneven, thus cause aeration efficiency to reduce and the damage of aerating system.

Reported both at home and abroad at present also have transformation to hold gas formula aerating apparatus, jet aerator, magnetization spiral-flow aeration device etc.Transformation holds gas formula aerating apparatus by producing microbubble to the pressurization of air water stream and decompression in device; Jet aerator produces negative pressure by current high-speed motion, relies on negative pressure to suck air, under the high-speed stirring and impeller cut effect of current, produces microbubble; First eddy current magnetization device magnetizes air, the air after magnetization under the effect of the swirling motion of water body with water mixing, produce microbubble.Although the generation avoiding blockage problem all in various degree of this several mode, but due to the high-speed motion of current all will be relied on to bring air into, by stirring or impeller cut generation microbubble, forced air is utilized to carry out the design specifications of aeration with present Sewage Plant and existing aerating system structure can not merge, need the technological transformation carrying out globality, therefore, all do not have to promote the use of in sewage work.

At present, in the various aeration modes of sewage aerobic processing section, micro-pore aeration is widely used because aeration efficiency is higher, and the blockage problem of aerating apparatus (head) also becomes increasingly conspicuous, and annoyings the normal operation of Sewage Plant.Solve the expose to the sun blockage problem of device (head) of micropore and just must strengthen the aperture of aerating apparatus (head) surface micropore, but aperture becomes greatly, and bubble diameter becomes large, and coefficient of oxygen utilization decreases thereupon, aeration decrease in efficiency, ton water treatment energy consumption and processing cost must rise.To blocking aeration device (head) although replacing aerating apparatus (head) low price, must empty pond hold, not only time and effort consuming, more can affect normal operation and the effluent quality of Sewage Plant.

Develop a kind of microbubble that can either produce and obtain higher coefficient of oxygen utilization and aeration efficiency, the aerating apparatus (head) blocked can be avoided again to be current Sewage Plant problem demanding prompt solution.

Utility model content

The aperture size on microporous aeration device (head) surface determines the grain size producing bubble, and aperture is less, and bubble diameter is less, also more easily blocks.The bubble diameter that the microporous aeration device (head) that current Sewage Plant generally uses produces is 50 microns ~ 1 millimeter scope.

The technical problems to be solved in the utility model is: develop and a kind ofly can either produce the microbubble that particle diameter is not more than 50 microns and obtain higher aeration efficiency, can avoid again blocking, simultaneously also can be compatible with the existing aerating system of Sewage Plant, do not make the aerating apparatus of extensive technological transformation construction.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of anti-clogging plug microbubble aerating apparatus for sewage disposal, this device is round shape, comprise inner core, urceolus, inlet pipe, air nozzle, cross water pond, diffuser tube, described inner core and urceolus are all provided with lower cover and upper cover, gap between inner core and urceolus barrel is arranged on the spill baffle ring on barrel, sawtooth baffle ring is divided into the space differed in size, form snakelike water route, in, cavity between outside upper cover forms crushing chamber, in, spacer ring is provided with between the lower cover of urceolus, in described spacer ring is incited somebody to action, cavity under urceolus between cover and barrel gap and crushing chamber separate, inhalant region is formed in bottom of device, the inside and outside doffing of inhalant region covers and is provided with water-in, one tubular channel runs through intake chamber, inner core from bottom of device, is opened on cover on inner core, described tubular channel comprises inlet pipe, air nozzle, diffuser tube from bottom to top, is provided with water pond at air nozzle lower position, and the water in inner core passed through water pond and enters tubular channel.

One end of inlet pipe is connected by the gas pipe line of the existing aerating system of joint and Sewage Plant, and forced air enters inlet pipe by gas pipe line.The other end of inlet pipe is connected with air nozzle, air nozzle is different by two groups of angles, the spout that bore is different and magnet composition, magnet is arranged on spout end, rotary motion is produced by air by the different angles of spout and bore, completing magnetization by magnet to flowing through air, making the air polarity entering diffuser tube more stable.

Have the prosopyle that diameter is about 1cm bottom inner core, aeration tank water body enters into inner core by water-in under hydraulic pressure effect, and inner core hydraulic pressure is equal with hydraulic pressure bottom aeration tank.Spray the air entering diffuser tube via air nozzle and around air nozzle, produce negative pressuren zone when high-speed motion, the water in inner core passed through water pond and brought into diffuser tube by swirling eddy under suction function.

Local decompression is in various degree caused because space becomes large after the air water rotated flows to diffuser tube, form sinuous flow, under the comprehensive action of air rotation, local several respects such as decompression, sinuous flow, empty G&W completes mixing, become the air water liquid mixed, and produce the air pocket of some amount.Air water liquid is from the crushing chamber at diffuser tube high speed access to plant top.Diffuser tube and crushing chamber are all circular, and diffuser tube and crushing chamber are arranged on the same center of circle.

Crushing chamber top is inlaid with concentrically ringed dispersion impeller, and dispersion impeller is spill, the groove that surface working has 16 width different, and groove distributes in the shape of a spiral.The air water stream entering crushing chamber impacts dispersion impeller, under shock action, complete primary crushing, under the cutting action of groove and the eddy effect at groove edge, complete repeated multiple times fragmentation, forms bubble liquid.The spiral of groove makes bubble liquid produce rotation in crushing chamber, strengthens the mixing of bubble liquid and the eddying effect at groove edge.

Bubble liquid enters at a high speed the gap of inner core and urceolus from crushing chamber.Equidistant installation 3 spination baffle rings inside urceolus, between two sawtooth baffle rings, circumferentially 16 grades divide installation to disturb rod.The equidistant installation of inner tank theca 3 spill baffle rings, the sawtooth baffle ring staggered arrangement inside spill baffle ring and urceolus.In the gap of urceolus and inner core, formed the snakelike water route of change width by spill baffle ring, sawtooth baffle ring, in two parts in water route, disturb rod.

After bubble liquid at a high speed enters snakelike water route, in the part generation decompression that width is large, in the part generation supercharging that width is little, the change of repeated multiple times pressure bring 1. Gas-Liquid Dispersion effect 2. air pocket fragmentation become microbubble.In the process of bubble liquid repeat impact sawtooth baffle ring and spill baffle ring, air pocket is fractured into microbubble.The eddying effect at sawtooth baffle ring edge and disturb rod and play the effect strengthening Gas-Liquid Dispersion effect.

Microbubble liquid is discharged from the spacer ring below device and the row's mouth between urceolus, enters aeration tank water body.

Compared with prior art, the utility model is not allow the air after pressurizeing push through the micropore on aerating apparatus (head) surface to produce microbubble, therefore, does not all arrange micropore at apparatus surface and inside, avoids the generation of blockage problem.

The utility model is rotated by air magnetization, air high speed rotary motion, air water liquid, pressure and change in flow, snakelike water route, local eddy currents, disturb the modes such as dispersion and carry out repeated multiple times impact grinding to air water liquid and disturb dispersion, produces micro-bubble.After testing (as Fig. 2), after the utility model aeration in pure water stops 20 minutes, the microbubble quantity of the particle diameter retained in water 0.1 micron is about 2x10 ⁵individual/milliliter.The utility model achieves following 9 beneficial effects:

1.. device inside does not have the parts of microvoid structure, avoids producing blocking;

2.. the gap of the diffuser tube of device, crushing chamber, snakelike water route, air nozzle parts is all at 1.8 ~ 2.7mm, and microorganism flco can smooth and easyly pass through, and does not block;

3.. bubble liquid high-speed motion in device, microorganism cannot be attached to parts surface propagation, avoids producing blocking;

4.. (number of bubbles that particle diameter is 0.1 micron is about 2x10 to the bubble of 0.1 ~ 0.5 micron grain size that generation quantity is large ⁵individual/milliliter, the number of bubbles of other particle diameter yardstick need be added up one by one) on particle diameter yardstick, be better than 50 micron bubbles that microporous aeration device (head) produces, meet the requirement of Sewage Plant to aeration efficiency;

5.. under equal air flux, bubble diameter is less, aeration efficiency is higher, the microbubble particle diameter that the utility model produces is less than the bubble diameter that microporous aeration device (head) that present Sewage Plant generally uses produces, and aeration efficiency is higher than microporous aeration device (head) about 10% ~ 20%;

6.. the raising of aeration efficiency will reduce aeration energy consumption, reduce electric cost expenditure, reduce the processing cost of sewage.

7.. avoid the generation of aerating apparatus (head) blockage problem, saved the expense that blocking aeration device (head) is changed, pickling is keeped in repair, reduced the running cost of Sewage Plant;

8.. saved for maintain and replace blocking aeration device (head) and must empty pond hold problem, saved clear pond time, culturing sludge time, be conducive to the normal smooth running of Sewage Plant;

9.. continue to use the built parts such as the roots blower of the existing aerating system of Sewage Plant, gas pipe line, only replacing existing micro porous aeration head can use, and has saved expense and the time of extensive technological transformation.

Accompanying drawing explanation

Fig. 1 is this device schematic diagram.

Wherein: 1-pipe connecting, 2-air nozzle, 3-crosses water pond, 4-inlet pipe, 5-inner core lower cover, 6-magnet, 7-inner core, 8-sawtooth baffle ring, 9-spill baffle ring, 10-inner core upper cover, 11-diffuser tube, 12-urceolus upper cover, 13-dispersion impeller, 14-urceolus, 15-urceolus lower cover, 16-spacer ring, 17-crushing chamber, 18-joint, 19-groove, 20-disturbs rod, and 21-arranges mouth.

Fig. 2 is the grain size distribution of the microbubble that this device produces.(detecting unit: East China Normal University's water surrounding and interface science research centre detection time: in January, 2015).

Embodiment

The utility model is round shape, by inlet pipe, inner core, urceolus, air nozzle, cross water pond, diffuser tube, crushing chamber, dispersion impeller, sawtooth baffle ring, spill baffle ring, disturb rod etc. parts form.Device is arranged on bottom Sewage Plant aeration tank, replaces existing microporous aeration device (head).

Inlet pipe 4 is connected on the existing aerating system pneumatic tube of Sewage Plant by joint 18, and the forced air in pneumatic tube enters inlet pipe 4, sprays via air nozzle 2, and produce high speed rotating and complete magnetization by magnet 6, air polarity is more stable.Water in aeration tank by the bottom of inner core 5 and urceolus lower cover 15 on opening access to plant inner core 7, hydraulic pressure in inner core 7 is equal with the hydraulic pressure bottom aeration tank, the water of inner core 7 passed through water pond 3 and gas and vapor permeation under the negative pressure that gas high speed rotary motion produces drives, and formed mixing wastewater with air liquid.Cross water pond 3 is fixed on air nozzle 2 below by pipe connecting 1, cross connection inner core 7 and the diffuser tube 11 of water pond 3, pipe connecting 1 is fixed on diffuser tube 11.

Diffuser tube 11, through inner core upper cover 10, is communicated with crushing chamber 17.Mixing wastewater with air liquid enters diffuser tube 11, under the effect of local decompression and sinuous flow, forms the air water liquid mixed.Air water liquid enters crushing chamber 17, impacts the dispersion impeller 13 being embedded in urceolus upper cover 12.Dispersion impeller 13 surface working has spiral helicine groove 19, and mixing wastewater with air liquid produces fragmentation under shock action, produces eddy current at the edge contact angle of groove 19, and the fragmentation of air water liquid is become the bubble liquid being rich in air pocket by broken and eddying effect.Groove is processed to spirrillum, makes air water liquid form rotary waterway in crushing chamber 17.Bubble liquid enters at a high speed the gap of inner core 7 and urceolus 14 from crushing chamber 17.

Urceolus 14 is connected with urceolus lower cover 15, and inner core 7 is connected with inner core lower cover 5, is provided with spacer ring 16 between inner core lower cover 5 and urceolus lower cover 15.The inwall of urceolus 14 is inlayed to be provided with between 3 sawtooth baffle rings, 8, two sawtooth baffle rings 8 and is disturbed rod 20.Inner core 7 outer wall inlays 3 spill baffle rings 9.Bubble liquid enters at a high speed the gap of urceolus 14 and inner core 7, impacts sawtooth baffle ring 8, disturbs rod 20, spill baffle ring 9 completes fragmentation and dispersion, form the microbubble liquid being rich in microbubble.

Sawtooth baffle ring 8 and spill baffle ring 9 staggered arrangement, be divided into the gap of inner core 7 and urceolus 14 space varied in size, form snakelike water route.The space decompression that bubble liquid is larger in snakelike water route, reduced velocity flow, in less space supercharging, flow velocity is accelerated, and is strengthened the dispersion of air-water, produce microbubble by the pressure alteration in snakelike water route and the change in flow of bubble liquid.Baffle ring is processed to spination and spill and adds flow-disturbing to bubble liquid and crushing efficiency.The rod 20 that disturbs be arranged between sawtooth baffle ring plays flow-disturbing effect, is conducive to the generation of microbubble.

Row mouth 21 discharger of microbubble liquid between spacer ring 16 and urceolus 14, enters aeration tank water body.

Air nozzle 2 of the present utility model is made up of the spout that two groups of angles are different, and the forced air in gas pipe line forms swirling eddy after nozzle, and air-flow is magnetized when magnet 6.The negative pressure that air high-velocity jet produces brings the water in inner core 7 into, completes first time mixing wastewater with air; Complete second time mixing wastewater with air by the local decompression in diffuser tube 11 and sinuous flow, obtain mixing more uniform air water liquid.

Air water liquid enters crushing chamber 17 from diffuser tube 11 and impacts dispersion impeller 13, and dispersion impeller 13 surface working has the groove 19 of spiral, and air water liquid is fractured into the bubble liquid containing air pocket after impacting dispersion impeller and groove.Air water liquid forms eddy current at groove 19 edge contact angle, and improve broken mixing efficiency, groove 19 is processed to spirrillum, and bubble liquid is rotated in the fluidised form of crushing chamber 17, strengthens effects of action that is broken and eddy current.

Bubble liquid enters at a high speed the gap of inner core 7 and urceolus 14 from crushing chamber 17, impact downwards along the snakelike water route in gap, enters aeration tank water body from row's mouth 21 discharger.Along in snakelike waterway sports process, sawtooth baffle ring 8, spill baffle ring 9 and disturb rod 20 effect under, utilize the action principle such as pressure change, change in flow, flow-disturbing, impact, local eddy currents to complete the repeatedly broken of bubble and Gas-Liquid Dispersion, form unequigranular micro-bubble.

Claims

1. the anti-clogging plug microbubble aerating apparatus for sewage disposal, it is characterized in that, this device is round shape, comprise inner core, urceolus, inlet pipe, air nozzle, cross water pond, diffuser tube, described inner core and urceolus are all provided with lower cover and upper cover, gap between inner core and urceolus barrel is arranged on the spill baffle ring on barrel, sawtooth baffle ring is divided into the space differed in size, form snakelike water route, in, cavity between outside upper cover forms crushing chamber, in, spacer ring is provided with between the lower cover of urceolus, in described spacer ring is incited somebody to action, cavity under urceolus between cover and barrel gap and crushing chamber separate, inhalant region is formed in bottom of device, the inside and outside doffing of inhalant region covers and is provided with water-in, one tubular channel runs through intake chamber, inner core from bottom of device, is opened on cover on inner core, described tubular channel comprises inlet pipe, air nozzle, diffuser tube from bottom to top, is provided with water pond at air nozzle lower position, and the water in inner core passed through water pond and enters tubular channel.

2. the anti-clogging plug microbubble aerating apparatus for sewage disposal according to claim 1, it is characterized in that, the top of described diffuser tube, the top of crushing chamber are provided with dispersion impeller, and dispersion impeller is provided with groove.

3. the anti-clogging plug microbubble aerating apparatus for sewage disposal according to claim 2, it is characterized in that, described dispersion impeller is spill, the groove that surface has 16 width different, and groove distributes in the shape of a spiral.

4. the anti-clogging plug microbubble aerating apparatus for sewage disposal according to claim 1, is characterized in that, equidistant installation 3 spination baffle rings inside urceolus, and between two sawtooth baffle rings, circumferentially 16 grades divide installation to disturb rod; The equidistant installation of inner tank theca 3 spill baffle rings, the sawtooth baffle ring staggered arrangement inside spill baffle ring and urceolus.

5. the anti-clogging plug microbubble aerating apparatus for sewage disposal according to claim 1, is characterized in that, air nozzle is different by two groups of angles, and the spout that bore is different and magnet composition, magnet is arranged on spout end.