CN203269611U - Micro-fine bubble generator for sewage air floatation treatment and micro-fine bubble generation system - Google Patents
Micro-fine bubble generator for sewage air floatation treatment and micro-fine bubble generation system Download PDFInfo
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- CN203269611U CN203269611U CN 201320171601 CN201320171601U CN203269611U CN 203269611 U CN203269611 U CN 203269611U CN 201320171601 CN201320171601 CN 201320171601 CN 201320171601 U CN201320171601 U CN 201320171601U CN 203269611 U CN203269611 U CN 203269611U
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Abstract
The utility model discloses a micro-fine bubble generator for sewage air floatation treatment and a micro-fine bubble generation system. The micro-fine bubble generator comprises a water cavity pipe and a micropore pipe, wherein one end of the water cavity pipe is connected with the micropore pipe, and the other end of the water cavity pipe is a closed end; the side wall of the water cavity pipe is provided with an inlet water pipe; the micropore pipe is externally provided with an air cavity pipe in a sleeving way; a closed air cavity is formed between the air cavity pipe and the micropore pipe; the side wall of the air cavity pipe is provided with an inlet air pipe; the open end of the micropore pipe is connected with an outlet pipe. When the micro-fine bubble generator is in use, treated water and air enter the water cavity pipe and the air cavity pipe of the micro-fine bubble generator respectively through the inlet water pipe and the inlet air pipe, the air is cut through the micropore pipe and sheared through the continuous scouring of treated water flows to form microbubbles, and the water flows carried with the formed microbubbles are discharged from the outlet pipe. The micro-fine bubble generator disclosed by the utility model can be used for effectively generating the micro-fine bubbles with sufficient quantity and uniform sizes so as to completely meet the requirements of an air floatation purifying treatment process.
Description
Technical field
The utility model relates to a kind of sewage air-flotation to be processed with micro-bubble generator and micro bubble generation systems.
Background technology
The By Bubble-floating Method water technology is exactly to manage to produce the micro bubble of sufficient amount, size uniform (sometimes also together adding flotation agent) in former water, and the pollution substances such as oil particles in former water, suspended solid (SS) and bubble are adhered to, then virtue of buoyancy rises to the water surface, reaches the purpose of purification of water quality by collecting scum.Difference according to the micro bubble producing method, air flotation technology can be divided into pressurized dissolved air flotation (Dissolved gas Flotation, DGF), heterogeneous air dissolved pump air supporting, induction flotation (Induced Gas Flotation, IGF), electrofloatation etc., at present municipal wastewater and the Industrial Wastewater Treatment sector application more pressurized dissolved air flotation and induction flotation arranged.
The ultimate principle of pressurized dissolved air flotation is, at first air or other gas are dissolved under the certain pressure effect in pending former water, and reach hypersaturated state, reduce subsequently the pressure of dissolved air water, the gas that is dissolved in is wherein overflowed with the form of micro bubble, and then complete the air supporting process.The bubble that the conventional press air-dissolving air-float forms is tiny, but need the equipment such as gas distribution supercharging handling equipment (as air compressor machine etc.), filler dissolving, outgas device (as reducing valve), cause system form comparatively complicated, operation energy consumption is higher, occupation area of equipment is larger etc.Increasingly mature along with the multiphase flow pump feed technique more and more causes people's concern based on the air flotation technology of heterogeneous air dissolved pump.The maximum difference of this technology and conventional press air-dissolving air-float technology is, use heterogeneous air dissolved pump to replace the equipment such as air compressor machine, filler dissolving in the conventional press air-dissolving air-float system, complete water supercharging, gas suction, gas dissolving shear history in a heterogeneous air dissolved pump, contained a large amount of micro bubbles in the sewage of pump discharge.Known multiphase flow pump has U.S. Exterran at present
TMThe ONYX-Micro Bubble pump of company, the Brise of Siemens
TMTurbulence pump of the air dissolved pump of IGF pump, German Edur company, Japanese NIKUNI company etc., wherein the air dissolved pump product line of German Edur company enriches the most, is most widely used.About 30 μ m, the gas-liquid mixed degree is high substantially for the particle diameter of microbubble that heterogeneous air dissolved pump produces.Although the configuration of heterogeneous air dissolved pump air-flotation system is simple, running maintenance is easy, and the Cost Problems of its power consumption and pump self is very important.Experimental study also finds, heterogeneous air dissolved pump exists stronger emulsification pretreatment effect to former water, and for some former water (as oily(waste)water etc.), the negative impact of this emulsification pretreatment can not be ignored, and even can cause the decrease of purification efficiency.
Induction flotation has two kinds of mechanical induction flotation and waterpower induction flotations.Mechanical induction air supporting also claims impeller rotary-cut air supporting, mainly relies on the motor drives vane rotary, and the subnormal ambient that work chamber produces causes gas automatically to enter, and completes subsequently and shears to produce microbubble.The main drawback of this technology is that the rotatable parts that mechanical system has are safeguarded complexity, and simultaneity factor can't be carried out reflux operation; Impeller rotary-cut air floatation machine exists liquid level to control difficulty and more greatly, is prone to the deficiencies such as short stream and dead stream district, and particle diameter and the impeller rotary-cut intensity of the microbubble of air floatation machine generation simultaneously are closely related, and the microbubble particle diameter is larger and inhomogeneous, usually between 10～300 μ m.The waterpower induction flotation also claims jet air float, is widely applied in oil-gas field or petroleum chemical enterprise's oil extraction-generated waste water processing from late 1980s, has in succession occurred the jet air float product of a collection of mature and reliable both at home and abroad, as U.S. Natco company
And domestic YFP jet-type induction flotation machine, FXP jet flotation machine, YQJ type jet flow air float purifyer, the horizontal induction flotation tank of HGF etc.The key components of jet air float is ejector or high speed Venturi tube, and trunnion section flow rate of water flow is higher, pressure is lower, causes gas automatically to enter, and completes subsequently and shears to produce microbubble.The power consumption of jet air float low (be only impeller rotary-cut pneumatically supported half) does not have rotatable parts in ejector or high speed Venturi tube simultaneously, and shearing force is less, can not cause the broken loose of adherend.But the microbubble particle diameter that produces is larger, and its efficient is subjected to the impact of ejector or high speed Venturi tube outlet aperture larger, the water quality that enters nozzle and pressure is required comparatively harsh, and less fluctuation may affect greatly purification efficiency.
In view of the deficiency that pressurized dissolved air flotation, heterogeneous air dissolved pump air supporting, induction flotation exist, utility model people constantly explores the efficient micro bubble generation of development of new always.Along with the continuous progress of materials processing synthetic technology with generally use, be achieved based on the microporous foam technology of microporous medium material.The basic functional principle of this technology is, shears continuous gas by the microporous medium material and forms fine air-flow, and the fine air-flow of current " shearing is washed away " obtains microbubble.Compare with the pressurized dissolved air flotation bubble, the microporous foam technical equipment is simple, has saved huge filler dissolving, and the utilising efficiency of gas is higher, also relative reduce of working cost; In addition, this technology can manage to overcome heterogeneous air dissolved pump air supporting, induction flotation fully to the strong shearing action of former water current, and the bubble diameter that produces is tiny, even, to produce bubbles volume large.
The utility model content
The purpose of this utility model is to provide a kind of sewage air-flotation and processes with micro-bubble generator and micro bubble generation systems.
A kind of sewage air-flotation provided by the utility model is processed and is used micro-bubble generator, and it comprises water cavity pipe and microporous pipe; One end of described water cavity pipe is connected with described microporous pipe, and the other end is blind end; The sidewall of described water cavity pipe is provided with the entrance water pipe;
Described microporous pipe is arranged with the air cavity pipe outward, forms airtight air cavity between described air cavity pipe and described microporous pipe; The sidewall of described air cavity pipe is provided with into orotracheal tube;
The opening end of described microporous pipe is connected with outlet pipe.
In above-mentioned micro-bubble generator, describedly enter the middle part that orotracheal tube is located at described air cavity pipe;
Described entrance water pipe is located at the middle and upper part of described water cavity pipe.
In above-mentioned micro-bubble generator, the blind end of described water cavity pipe can seal or pass through welded closure by flange.
In above-mentioned micro-bubble generator, can be connected by flange or thread seal between described water cavity pipe and described microporous pipe.
In above-mentioned micro-bubble generator, can be connected by flange or thread seal between described microporous pipe and described outlet pipe.
In above-mentioned micro-bubble generator, between described water cavity pipe and described microporous pipe, all can seal by sealing-ring or gasket seal between described microporous pipe and described outlet pipe.
In above-mentioned micro-bubble generator, described outlet pipe can be outlet threaded pipe or discharge flange pipe.
In above-mentioned micro-bubble generator, spiral guide sheet on the inwall of described water cavity pipe; Described spiral guide sheet is located at the bottom of described tangential inlet water pipe, and described spiral guide sheet can guide sewage to produce eddy flow, strengthens follow-up shearing action to bubble.
In above-mentioned micro-bubble generator, described micro-bubble generator comprises that also one shears reinforced pipe, and described shearing reinforced pipe extends to the opening end of described microporous pipe from a blind end of described water cavity; Described shearing reinforced pipe can be by reducing the fluid circulating area, thereby accelerate the velocity of shear of fluid.
In above-mentioned micro-bubble generator, an end of described shearing reinforced pipe is fixed on the flange of the described water cavity of sealing;
The other end of described shearing reinforced pipe extends the opening end 5～10mm place apart from described microporous pipe;
The diameter of described shearing reinforced pipe be described microporous pipe diameter 1/3～1/2.
In addition, according to the difference that treatment effect is required or the difference of working flow demand, the micro-bubble generator that the utility model provides can adopt the mode of serial or parallel connection to make up, and even can be used for oxygenation in Xiang Yuanshui, the carrying out of assisted and strengthened aerobic biochemical process.
In the utility model, described microporous pipe specifically is chosen as vitrified pipe, also can process for other materials is synthetic, with a large amount of fine pores and have some strength and the tubular member of erosion resistance, as metal powder sintered microporous pipe, ceramic membrane film pipe etc.
When using micro-bubble generator of the present utility model, process water, gas respectively by described entrance water pipe, enter water cavity pipe, air cavity pipe that orotracheal tube enters described microbubble generator, gas cuts and passes through through described microporous pipe the shearing of constantly washing away of processing current and forms microbubble, and current carry the microbubble of formation and discharge from outlet pipe.
Owing to having adopted technique scheme, the utlity model has following advantage and effect:
(1) the utility model can produce the micro bubble of sufficient amount, size uniform effectively, can satisfy air-float purification treatment process needs fully.
(2) the utility model has been avoided can realizing operation steady in a long-term because processing the cleaning trouble that in water, the blocking microporous pipe of foreign material brings, and no-rotary part, uses installation and maintenance to repair simple and easy.
(3) the utility model is energy-conservation, only is improved the gaseous tension wasted work, without other power consumption.
(4) the utility model is simple in structure, compact, can effectively save the space, and the operating mode higher for space requirement has application advantage.
(5) working cost of the present utility model is low, is easy to popularize.
Description of drawings
Fig. 1 is the structural representation of the utility model micro-bubble generator.
Fig. 2 is the interface orientation schematic diagram of Fig. 1.
Fig. 3 is A-A cross-sectional schematic in Fig. 1.
Fig. 4 is the structural representation of another embodiment of the utility model micro-bubble generator.
Fig. 5 is the interface orientation schematic diagram of Fig. 4.
Fig. 6 is B-B cross-sectional schematic in Fig. 4.
Fig. 7 is the series system structural representation of the utility model microbubble generator.
In figure, each mark is as follows: 1 blind flange, 2 water cavity pipe flanges, 3 tangential inlet water pipes, 4 water cavity pipes, 5 tangential inlet tracheaes, 6 air cavity pipes, 7 microporous pipe, 8 flange a, 9 flange b, 10 outlet threaded pipes, 11 large O-ring seals, 12 little O-ring seals, 13 annular air cavities, 14 water cavities, 15 flanges, 16 gasket seals, 17 spiral guide sheets, 18 are sheared reinforced pipe, 19 micro-bubble generators.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1-Figure 3, the micro-bubble generator that provides of the utility model comprises water cavity pipe 4 and microporous pipe 7; One end of this water cavity pipe 4 is connected by flange 15 with microporous pipe 7, and the junction is provided with large O-ring seals 11, and the other end of this water cavity pipe 4 is connected with the water cavity pipe flange by blind flange 1 and is connected, and is provided with gasket seal 16 in the junction.The middle and upper part of these water cavity pipe 4 sidewalls is provided with a tangential inlet water pipe 3, and process water and enter in water cavity pipe 4 by this tangential inlet water pipe 3, and in water cavity pipe 4 inward eddies enter microporous pipe 7.Wherein this microporous pipe 7 is a cylindrical ceramic pipe, and it has several holes.Be arranged with an air cavity pipe 6 outside microporous pipe 7, form an airtight annular air cavity 13 between this air cavity pipe 6 and microporous pipe 7, and be provided with a tangential entrance tracheae 5 in the middle part of air cavity pipe 6 sidewalls, extraneous source of the gas enters annular air cavity 13 from this tangential inlet tracheae 5.The opening end of this microporous pipe 7 is connected with flange b9 by flange a8 with an outlet threaded pipe 10, and the junction is provided with large O-ring seals 11 and little O-ring seals 12.Processing water washes away shears the gas that constantly enters by micron-sized hole on microporous pipe 7, washing away under shearing of fluid, forms the mixed solution that is rich in microbubble, and will sneak into the processing water discharge to be clean of micro bubble by outlet threaded pipe 10.
As Fig. 4-shown in Figure 6 (in figure in unmarked and Fig. 1-Fig. 3 identical parts), in order to produce desired swirl strength, strengthen follow-up shearing action to bubble, spiral guide sheet 17 can also be set and shear reinforced pipe 18.Wherein spiral guide sheet 17 is located at the bottom of tangential inlet water pipe 3, and spiral guide sheet 17 can guide sewage to produce eddy flow, strengthens follow-up shearing action to bubble.One end of this shearing reinforced pipe 18 is fixed on blind flange 1, extends to the opening end of microporous pipe 7 from a blind end of water cavity pipe 4, and the 10mm place, upper end of distance outlet spiral tube 10.
The micro-bubble generator that the utility model provides, wherein the factor such as velocity of shear of the inside and outside differential pressure between the pore size of the tube wall of microporous pipe, porosity, annular air cavity and water cavity, current (directly depending on inlet flow rate) can directly have influence on the formation effect of micro bubble.Inside and outside differential pressure between annular air cavity and water cavity can be by regulating source of the gas supply gas pressure etc. realize, the flow that the velocity of shear of current can be by regulating entrance sewage etc. is realized.The ratio of the diameter of shearing reinforced pipe and the diameter of microporous pipe can be adjusted in 1/3 to 1/2 scope, and shears the extension of reinforced pipe free end apart from opening end 5～10mm place of microporous pipe.In addition, in the situation that former water treatment amount is constant, length that can also be by changing whole micro-bubble generator (especially microporous pipe), adopt the mode such as two or more tandem workings to increase the quantity of entrained micro bubble in former water; And for the micro-bubble generator of same kind specification, can satisfy requirement to the former water treatment amount of difference by modes such as two or more parallel runnings, as shown in Figure 7, schematic diagram when adopting the mode of series connection, the outlet spiral tube 10 of one of them micro-bubble generator 19 is connected with the tangential inlet water pipe 3 of another micro-bubble generator 19.
Obviously, when source of the gas gas is the higher gas (when it is pure oxygen) of air or oxygen level, this novel micro-bubble generator can also be used for to former water oxygenation, the carrying out of assisted and strengthened aerobic biochemical process.
The above is only specific embodiment of the utility model, and those skilled in the art are according to the disclosed technical concept of application documents, and various changes or modification to the utility model embodiment carries out all do not break away from spirit of the present utility model and covering scope.
Claims (10)
1. a sewage air-flotation is processed and is used micro-bubble generator, it is characterized in that:
Described micro-bubble generator comprises water cavity pipe and microporous pipe; One end of described water cavity pipe is connected with described microporous pipe, and the other end is blind end; The sidewall of described water cavity pipe is provided with the entrance water pipe;
Described microporous pipe is arranged with the air cavity pipe outward, forms airtight air cavity between described air cavity pipe and described microporous pipe; The sidewall of described air cavity pipe is provided with into orotracheal tube;
The opening end of described microporous pipe is connected with outlet pipe.
2. micro-bubble generator according to claim 1 is characterized in that: describedly enter the middle part that orotracheal tube is located at described air cavity pipe;
Described entrance water pipe is located at the middle and upper part of described water cavity pipe.
3. micro-bubble generator according to claim 1 and 2 is characterized in that: the blind end of described water cavity pipe seals by flange or passes through welded closure;
Between described water cavity pipe and described microporous pipe by flange or be threaded.
4. micro-bubble generator according to claim 1 and 2 is characterized in that: between described microporous pipe and described outlet pipe by flange or be threaded.
5. micro-bubble generator according to claim 1 and 2 is characterized in that: between described water cavity pipe and described microporous pipe, seal by sealing-ring or gasket seal between described microporous pipe and described outlet pipe.
6. micro-bubble generator according to claim 1 and 2 is characterized in that: described outlet pipe is outlet threaded pipe or discharge flange pipe.
7. micro-bubble generator according to claim 1 and 2, it is characterized in that: the inwall of described water cavity pipe is provided with spiral guide sheet; Described spiral guide sheet is located at the bottom of described tangential inlet water pipe.
8. micro-bubble generator according to claim 1 and 2, it is characterized in that: described micro-bubble generator also comprises the shearing reinforced pipe, described shearing reinforced pipe extends to the opening end of described microporous pipe from the blind end of described water cavity pipe.
9. micro-bubble generator according to claim 8 is characterized in that: an end of described shearing reinforced pipe is fixed on the flange of the described water cavity pipe of sealing;
The other end of described shearing reinforced pipe extends the opening end 5～10mm place apart from described microporous pipe;
The diameter of described shearing reinforced pipe be described microporous pipe diameter 1/3～1/2.
10. a sewage air-flotation is processed and used the micro bubble generation systems, it is characterized in that: described system comprises the described sewage air-flotation processing of any one micro-bubble generator in the claim 1-9 that several are in parallel or connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320171601 CN203269611U (en) | 2013-04-08 | 2013-04-08 | Micro-fine bubble generator for sewage air floatation treatment and micro-fine bubble generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320171601 CN203269611U (en) | 2013-04-08 | 2013-04-08 | Micro-fine bubble generator for sewage air floatation treatment and micro-fine bubble generation system |
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| CN203269611U true CN203269611U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320171601 Expired - Lifetime CN203269611U (en) | 2013-04-08 | 2013-04-08 | Micro-fine bubble generator for sewage air floatation treatment and micro-fine bubble generation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193288A (en) * | 2013-04-08 | 2013-07-10 | 中国海洋石油总公司 | Micro-bubble generator for air floatation treatment of sewage |
| CN104003460A (en) * | 2014-05-30 | 2014-08-27 | 北京石油化工学院 | Micro-bubble generation device based on plate type microporous medium foaming mechanism |
| CN107727360A (en) * | 2017-11-03 | 2018-02-23 | 山东省科学院海洋仪器仪表研究所 | A kind of flow pattern generator |
| CN111499014A (en) * | 2020-04-27 | 2020-08-07 | 南京钛净流体技术有限公司 | Oxygen-enriched ceramic membrane aeration device, oxygen-enriched ceramic membrane aeration combination and oxygen-enriched ceramic membrane aeration method |
| CN112934023A (en) * | 2016-03-16 | 2021-06-11 | 纳米及先进材料研发院有限公司 | System and method for generating oxidizing bubbles in a fluid |
-
2013
- 2013-04-08 CN CN 201320171601 patent/CN203269611U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193288A (en) * | 2013-04-08 | 2013-07-10 | 中国海洋石油总公司 | Micro-bubble generator for air floatation treatment of sewage |
| CN104003460A (en) * | 2014-05-30 | 2014-08-27 | 北京石油化工学院 | Micro-bubble generation device based on plate type microporous medium foaming mechanism |
| CN104003460B (en) * | 2014-05-30 | 2016-01-06 | 北京石油化工学院 | Based on the micro-bubble generation device of board-like microporous medium foaming mechanism |
| CN112934023A (en) * | 2016-03-16 | 2021-06-11 | 纳米及先进材料研发院有限公司 | System and method for generating oxidizing bubbles in a fluid |
| CN107727360A (en) * | 2017-11-03 | 2018-02-23 | 山东省科学院海洋仪器仪表研究所 | A kind of flow pattern generator |
| CN111499014A (en) * | 2020-04-27 | 2020-08-07 | 南京钛净流体技术有限公司 | Oxygen-enriched ceramic membrane aeration device, oxygen-enriched ceramic membrane aeration combination and oxygen-enriched ceramic membrane aeration method |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20131106 Effective date of abandoning: 20140716 |
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| RGAV | Abandon patent right to avoid regrant |