CN201058829Y

CN201058829Y - Highly effective sewage treatment gas-mixing apparatus

Info

Publication number: CN201058829Y
Application number: CNU2006201514249U
Authority: CN
Inventors: 张超
Original assignee: TIANJIN CHEMICAL RESEARCH & DESIGN INST; China National Offshore Oil Corp CNOOC
Current assignee: TIANJIN CHEMICAL RESEARCH & DESIGN INST; China National Offshore Oil Corp CNOOC
Priority date: 2006-11-22
Filing date: 2006-11-22
Publication date: 2008-05-14
Anticipated expiration: 2016-11-22

Abstract

The utility model provides an air-liquid mixing device which is simple and highly efficient, and can continuously generate small and dense air bubbles and is applied to the aeration systems in the sewage or wastewater treatment and the fish pond, etc. The utility model comprises an air importing component (1), an air-water mixing component (2) and an air bubble decompression thinning component (3), etc. The air or the oxygen is led to the raw water which needs to be treated at an ejector nozzle of the air importing component, and then the air and the water are evenly mixed through the air-water mixing component, and then the raw water is passed through a two-level rotary decompression releasing device, thereby the small and dense air bubbles are mixed into the raw water.

Description

A kind of high-efficiency sewage is handled gas mixing device

Technical field

The utility model relates to water technology, exactly, being that a kind of high-efficiency sewage handles gas mixing device, is a kind ofly to be used for sewage or water treatment aeration processes such as trade effluent and fish pond can produce fine and closely woven bubble in water, so the increase dissolved oxygen revolve mixed aerating apparatus.

Background technology

Sanitary sewage and Industrial Wastewater Treatment, removing in the water the effective means of organism is biochemical process.Methods such as the catalytic oxidation that adopts usually in the biochemical process, active sludge all will increase the dissolved oxygen in the water by aeration mode diffusion transport air oxygenation in sewage at present.Dissolved oxygen is kept the needs of microbial metabolism in the active sludge, and impels the microorganism of catalytic oxidation filler wall to generate new microbial film.The biochemical process sewage disposal utilizes microbial bacterial exactly, breeds the purpose of reach degradable organic pollutant, purifying waste water, that is biodegradation technique as the nutriment metabolism with organism in the sewage.In addition, propagate fishery products such as fishes and shrimps artificially, also will in the pond, increase dissolved oxygen, keep the living necessities of aquatic organism by aeration.Therefore, the aeration diffusion technique of even entrained air or oxygen plays a part very important in sewage disposal and aquaculture in water.

In water, mix the gas aeration mode in the past and mainly contained methods such as blast aeration, high-speed stirring aeration and injecting dissolve gas.Blast aeration is to spread gaseous fluid with the aeration head that gas blower is arranged by pipe end in water, produces three-dimensional successive gas-to-liquid contact interface, is the main mode of aeration.But the pore of aeration head is excessive, and the bubble of generation is big and influence the gas-to-liquid contact area, and pore is too small can be strengthened pressure drag again and increase power consumption, and stops up easily, makes to safeguard and become difficult; The high-speed stirring aeration produces uneven sheet bubble, and effect is undesirable; And directly the efficient of injecting dissolve gas is low, and the number of bubbles of generation is not fine and closely woven less.

Summary of the invention

The purpose of this utility model is the deficiency that exists at existing aerator, and a kind of easy cheap less energy-consumption and high reliability are provided, and can produce the Liqiud-gas mixing device of fine and closely woven bubble continuously.

The utility model is realized by following mode technically.The former water process water pump pressurization that needs to handle enters into a pipeline that diameter is from coarse to fine, and water is accelerated at place, tubule road flow velocity, and forms negative pressure between the atmosphere.A conduit that communicates with atmosphere is established in outlet expansion place of tubule road, and under suction function, air is drawn in the former water naturally.The water that dissolves in air forms micro-bubble through mixing tank collision, flow-disturbing, barrier effect, by decompression, water conservancy diversion, the cyclonic action of secondary rotation decompression bubble releasing device, forms the vaporific gas-liquid mixed water that contains fine and closely woven bubble again.After this gas-liquid mixed water entered into the pond, micro bubble rose with bigger specific surface area diffusion and contacts with water, effectively increases the dissolved oxygen in the water.

The utility model is that a kind of high-efficiency sewage is handled gas mixing device, it is characterized in that wherein forming comprising that gas introduces assembly 1, air water electric hybrid module 2 and bubble decompression refinement assembly 3.

It is a round tubular body that gas is introduced assembly 1, and the former water that water pump is squeezed into enters fluerics 16 by threaded tube connection chamber 14, reducing chamber 15; The inlet pipe 11 that communicates with atmosphere or oxygen cylinder is established in the exit, fluerics, and the former water of mobile is drawn into air or oxygen in the former water by inlet pipe nozzle 12 at the negative pressuren zone at expansion cavity 17 places.

Air water electric hybrid module 2 is tubular type devices of the threaded pressure cap in two ends, and

pressure cap

23 and 28 is tightly connected pipe connecting 13 and 39 by sealing-

ring

24 and 27; Gas-water mixer 25 and first step rotation decompression bubble releasing device 26 are placed in the inside of air water electric hybrid module 2.

Gas-water mixer 25 is pipes that an internal surface is processed into many discontinuous screw shape projectioies 21, pipe gas-water mixer 25 inside of packing into.

Rotation decompression bubble releasing device with gas-water mixer 25 isodiametric pipe inside, welds two or more fan blade shape fins 22, and fin height surpasses medullary ray.

Bubble decompression refinement assembly 3 is to clamp a pipe 32 by two flanges, the inner second stage rotation decompression bubble releasing device 37 of placing of pipe; The flange two ends are by

water pipe

39 and 35 of being threaded, and flange fastens with bolt clip.

The gas mixing device that the utility model provides is mainly introduced assembly, air water electric hybrid module and bubble decompression refinement assembly etc. by gas on the structure and is formed.The former water that needs to handle is introduced air or oxygen in the water at the ejector nozzle place of gas introducing portion; Portion makes the air water uniform mixing by the air water mixing; Through secondary rotation decompression bubble releasing device, very fine and closely woven bubble is mixed in the former water again.Below in conjunction with accompanying drawing, the utility model is described further.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Gas is introduced assembly 1; Air water electric hybrid module 2; Bubble decompression refinement assembly 3; Inlet pipe 11; Inlet pipe nozzle 12; Pipe connecting 13,39,35; Connection chamber 14; Reducing chamber 15; Fluerics 16; Expansion cavity 17; Screw-like projection 21; Fin 22,36;

Pressure cap

23,28; Sealing-

ring

24,27; Gas-water mixer 25; Decompression bubble releasing device 26,37; Flange 31,33; Pipe 32; Bolt 34,38;

Fig. 2 is an embodiment synoptic diagram of the present utility model.

Pond 51; Water inlet pipe 52; High-efficiency sewage is handled gas mixing device 53; Water pump 54; Rising pipe 55; Dissolved air water 56; Water distributor 57

In the gas mixing device that the utility model provides, gas is introduced assembly 1, mixing wastewater with air assembly 2 and Bubble decompression refinement assembly 3 is to combine, and 3 separate parts. Former water process The pressurization of water pump promotes, and enters gas and introduces assembly 1. This component internal connection chamber 14 is through reducing The transition of

chamber

15,16 place's variation in diameter in the fluerics, the reducing ratio is 5: 1-3: between 1. Water exists The fluerics flow velocity increases, square being inversely proportional to of value added and vary in diameter, and High Velocity Area is with respect to atmosphere Be negative pressure. Former water is in expansion cavity 17 places decompressions, arranges herein one and communicates with atmosphere or oxygen cylinder Air inlet pipe 11, by air inlet pipe nozzle 12 air or oxygen is drawn in the former water.

Gas is introduced assembly 1, mixing wastewater with air assembly 2 connects by tube connector 13. Dissolve in gas Water in gas-water mixer 25 with screw-like projection 21 high velocity impacts, stirring, become turbulent condition, shape Become to contain the even gas-water mixture of micro-bubble.

Pressure cap

23 and 28 is by sealing

ring

24 and 27 Electric hybrid module is sealed at both ends. A rotating pressure-decreasing bubble also is installed in the mixing wastewater with air assembly 2 is discharged dress Put 26, it is an external diameter and the movable pipe section that cooperates of mixing wastewater with air assembly 2 internal diameters. Within it At least plural fan leaf sheet fin 22 of circular surfaces welding, fin height surpasses center line, Two fins will have certain distance between axially, this distance be greater than one times of fin physical dimension width with On, prevent from stopping up and take place. Aerated water contacts with fin, under the water conservancy diversion and cyclonic action of fin, revolves Changed flow morphology after turning to decompression. Cyclonic action, make the bubble that is dissolved in the water along diametric(al) to Make the further refinement of bubble behind tube wall accelerated motion and the tube wall high velocity impact and make water flow rotary; Fin Barrier effect make the about 0.1～0.3Mpa of pressure decreased of current, pressure decreased is the bubble in the water Thereby vaporificly become finer and closely woven.

By tube connector 39, gas-water mixture enters into decompression refinement assembly 3. Tube connector 39 One end is connected with mixing wastewater with air assembly 2 with pressure cap 28, and the other end links to each other with flange by screw thread. Two The sheet flange is clamped a pipe 32, the inner second level rotating pressure-decreasing bubble releasing device 37 of placing of pipe, Its effect is identical with aforementioned bubble releasing device 26, and just the fin anglec of rotation is opposite with 26, To the derotation effect of easing stress. Two flanges fasten with bolt clip. The mixed gas that comes out by tube connector 39 Water can be introduced aeration tank, air flotation slot or pool, and the fine and closely woven bubble of very high oxygen content and volume is arranged.

The high-efficiency sewage that the utility model provides is processed gas mixing device, structural design uniqueness. Owing to adopt Through various structures effect and macropore exhaust, so the consumption of pressure loss low-power is also little, and be not easy to block up Plug. Its installation simple in structure is easy, can save bulky air compressing and gas storage equipment simultaneously, Practical function is obvious.

Embodiment

Fig. 2 is an embodiment synoptic diagram of the present utility model.

Water pump 54 is by water inlet pipe 52, and suction enters the high-efficiency sewage processing gas mixing device 53 that the utility model provides from pond 51.Exit of pump pressure is not less than 0.4Mpa.Aerated water through behind the gas mixing device 53 is connected with water distributor 57 by rising pipe 55.Water distributor length is looked pond length and is determined.Apart from rising pipe from the near to the remote, it is ascending to press diameter on the water distributor, the round that keeps at a certain distance away out, and the diameter of minimum aperture is not less than 5mm, avoids clogging.Water distributor 57 distance at the bottom of the pond is not less than 100mm, and mud immersed in the water distributor during perforate was unlikely to termination of pumping downwards.Connect many water distributors by parallel way, make whole pond water distribution even.The pond is provided with an overfall near the pump intake place, and its effect is not make dissolved air water enter water pump to produce cavitation erosion.After adding this gas mixing device, very fine and closely woven bubble can be seen in dissolved air water 56 surfaces, and the dissolved oxygen value in the water has improved 87%.

Claims

1. a high-efficiency sewage is handled gas mixing device, it is characterized in that, introduces assembly (1), air water electric hybrid module (2) and bubble decompression refinement assembly (3) by gas and forms; Gas is introduced the helicitic texture of assembly (1) by pipe connecting (13) and pressure cap (23), is connected with air water electric hybrid module (2); The screw thread of the other end of air water electric hybrid module (2) by pressure cap (28), and pipe connecting (39), flange (31) link to each other with bubble decompression refinement assembly (3).

2. gas mixing device according to claim 1 is characterized by: it is a round tubular body that gas is introduced assembly (1), and the former water that water pump is squeezed into enters fluerics (16) by threaded tube connection chamber (14), reducing chamber (15); The inlet pipe (11) that communicates with atmosphere or oxygen cylinder is established in the exit, fluerics, and the negative pressuren zone that the former water of mobile is located at expansion cavity (17) is drawn into air or oxygen in the former water by inlet pipe nozzle (12).

3. gas mixing device according to claim 1 is characterized by: air water electric hybrid module (2) is the tubular type device of the threaded pressure cap in two ends, and pressure cap (23) and (28) are tightly connected pipe connecting (13) and (39) by sealing-ring (24) and (27); Gas-water mixer (25) and first step rotation decompression bubble releasing device (26) are placed in the inside of air water electric hybrid module (2).

4. gas mixing device according to claim 3 is characterized by: gas-water mixer (25) is the pipe that an internal surface is processed into many discontinuous screw shape projectioies (21), pipe gas-water mixer (25) inside of packing into.

5. gas mixing device according to claim 3 is characterized by: rotation decompression bubble releasing device, with the isodiametric pipe of gas-water mixer (25) inside, weld two or more fan blade shape fins (22), fin height surpasses medullary ray.