CN102218275B - Micro nano bubble generator - Google Patents

Micro nano bubble generator Download PDF

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Publication number
CN102218275B
CN102218275B CN 201110095683 CN201110095683A CN102218275B CN 102218275 B CN102218275 B CN 102218275B CN 201110095683 CN201110095683 CN 201110095683 CN 201110095683 A CN201110095683 A CN 201110095683A CN 102218275 B CN102218275 B CN 102218275B
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CN
China
Prior art keywords
air
pipeline
dissolving
bubble generator
nano bubble
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Expired - Fee Related
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CN 201110095683
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Chinese (zh)
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CN102218275A (en
Inventor
娄纪恒
李国浩
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DAQING XINYU TECHNOLOGY CO LTD
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DAQING XINYU TECHNOLOGY CO LTD
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Priority to CN 201110095683 priority Critical patent/CN102218275B/en
Publication of CN102218275A publication Critical patent/CN102218275A/en
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Publication of CN102218275B publication Critical patent/CN102218275B/en
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Abstract

The invention discloses a micro nano bubble generator which comprises a water intake pipe and a drainage pipe; one end of the water intake pipe is connected with a booster pump; the other end of the booster pump is connected with the top part of an air saturator in a sealing manner through a pipeline; an electromagnetic flowmeter is arranged on the pipeline; the top part of the air saturator is communicated with an air intake pipe in a sealing manner; an electromagnetic valve arranged on the air intake pipe is arranged in a control cabinet; an ejector nozzle, an ejector throat chamber, a liquid level floating ball, an air dissolved water absorption pipe are arranged in the air saturator; the ejector nozzle is connected with a pipeline; the ejector throat chamber is arranged on a position matched with the lower side of the ejector nozzle; an air liquid cavity is arranged between the ejector nozzle and the ejector throat chamber; a switch of the electromagnetic valve is controlled by a programmable controller; and the air dissolved water absorption pipe extends to the outside of the air saturator and is connected with the drainage pipe. The micro nano bubble generator can effectively remove dispersible oil uniformly dispersed in the water with an oil drop grain diameter equal to or less than 10 Mu m; meanwhile, oxidation desulfurising treatment on oily sewage or dissolved oxygen treatment by adding nitrogen is realized based on improving the air floatation oil by using different air source types.

Description

Micro-nano bubble generator
Technical field
The invention belongs to water treatment field, particularly a kind of micro-nano bubble generator.
Background technology
In the processing of oil-polluted water, common method is the air-float purification method, so-called By Bubble-floating Method is the effect that utilizes microbubble and coagulant, flocculant, with the oil mass material in the oil-polluted water and suspension cohesion, then float to water surface, thereby reach with dirt separation a kind of method of by waste removal equipment dirt being got rid of again.And microbubble is to the general name of diameter 50 μ m with bubble.The generation of microbubble mainly be with the front air-breathing dissolved under pressure of pump or aerator form suck enter under water afterwards the method that breaks into bubble of the High Rotation Speed by impeller realize.The bubble particles diameter of molten gas equipment generation in service is large, must add flocculant otherwise flco that suspension and oils produce can't float.In addition, tables of equipment as source of the gas, mixed the generation microbubble with air with water in the past.The operation treatment effect is too single.
Summary of the invention
In order to solve the problem that exists in the background technology, the invention provides a kind of micro-nano bubble generator, this micro-nano bubble generator can replace aerator and the air-dissolving apparatus in the existing airfloat equipment and can be applicable to the transformation of initial settlement tank, improves the deoiling effect of tank by increasing micro-nano bubble generator.The particle diameter of this novel generation bubble is at 10um-300nm, and dissolved air water is milk shape milky, need not to add demulsifier, just can effectively remove to be dispersed in oil droplet size in the water and to equal dispersed oil less than 10um.Pass through simultaneously the different source of the gas kind of use on the basis of improving the air supporting oil slick, realize the oxidation of oil-polluted water is removed sulphuring treatment or adds the processing of nitrogen removal dissolved oxygen.
The technical solution adopted in the present invention is: this micro-nano bubble generator comprises water inlet pipe and outlet pipe, one end of water inlet pipe is connected with booster pump, the booster pump other end is connected with the dissolving top seal by pipeline, pipeline is provided with electromagnetic flowmeter, the dissolving top seal is communicated with air inlet pipe, the magnetic valve that air inlet pipe is provided with, the other end of air inlet pipe connects air supply system, be provided with jet nozzle in the dissolving, the jet Hiltons sac, liquid-level floater, the dissolved air water absorption tube, jet nozzle is connected with pipeline, the jet nozzle below is provided with the jet Hiltons sac with its corresponding position, be the gas-liquid chamber between jet nozzle and the jet Hiltons sac, liquid-level floater passes to programmable controller in the control cabinet with signal, and programmable controller controls electromagnetic valve switch, dissolved air water absorption tube extend to that dissolving is outer to be connected with outlet pipe.
This novel beneficial effect that has is: the variation of (1) choosing source, equipment operation booster pump use the water source can use water source behind air supporting water outlet, treatment sewage, the sewage dosing coagulant.Air, oxygen, nitrogen and ozone have been adopted respectively.By using different source of the gas kinds on the basis of improving the air supporting oil slick, realize the oxidation of oil-polluted water is removed sulphuring treatment or adds the processing of nitrogen removal dissolved oxygen.(2) diffusion permeability of micro-nano bubble is long perdurabgility strong, bubble, makes organic matter, ion, bacterium in the sewage that the enough haptoreaction time can be arranged, thereby improves the utilization rate of gas; (4) device has diversity for the requirement of source of the gas, can be advantageously used in mixing of the gases such as air, oxygen, ozone and nitrogen and oil-polluted water, satisfies different processing requirements; Can reduce adding of high polymer coagulant when (5) being applied to airfloat equipment, be beneficial to the recycling of oil in the oil-polluted water; (6) owing to adopt jet in the tank, take full advantage of pump pressure, reduced energy consumption.Water feeding pressure just can normally be moved at 0.25Mpa equipment; (7) quantitatively air-breathing, mixing wastewater with air is abundant, without free bubble, has improved air-dissolving air-float efficient.Molten gas gas-water ratio is below 1%; (8) not filled in the gas-liquid mixed tank, can not stop up, relaxed the sewage quality requirement, adapt to multiple-quality water, improved the adaptability of equipment.This equipment uses the two membrane boundaries of profit theoretical, produces the particle diameter of bubble at 10um-300nm.Dissolved air water is milk shape milky, need not to add demulsifier, just can effectively remove be dispersed in the water, oil droplet size equals the dispersed oil less than 10um.(9) the present invention has realized automation control.
Description of drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is control system circuit diagram of the present invention.
Among the figure: the 1-outlet pipe, the 2-medicine washes out mouth, 3-discharge pressure transmitter, 4-intake pressure transmitter, 5-dissolving, 6-electromagnetic flowmeter, the 7-booster pump, the 8-medicine is washed import, the 9-water inlet pipe, the 10-check-valves, 11-jet nozzle, 12-jet Hiltons sac, the 13-liquid-level floater, 14-gas-liquid chamber, 15-dissolved air water absorption tube, the 16-air inlet pipe, 17-magnetic valve, 18-control cabinet, the 19-base, 20-pipeline, PLC-programmable controller, the QF-air-break, 1QF-air-break, 2QF-air-break, the VVVF-frequency converter, KM-A.C. contactor, DP-Switching Power Supply, the ST-connecting terminal block, POD-touch-screen, PLC A/D-analog module, DL1-adds gaseity, and DL2-hydraulic pressure is reported to the police, the DL3-air pressure alarm, the KA1-relay, KA2-relay and GL-signal are from every device.
The specific embodiment:
The present invention is further described below in conjunction with accompanying drawing: as shown in Figure 1, this micro-nano bubble generator comprises water inlet pipe 9 and outlet pipe 1, one end of water inlet pipe 9 and booster pump 7 add rubber cushion by flange and are tightly connected, booster pump 7 other ends are fixedly connected with dissolving 5 top seals by pipeline 20, pipeline 20 is provided with electromagnetic flowmeter 6, dissolving 5 top seals are communicated with air inlet pipe 16, the magnetic valve 17 that air inlet pipe 16 is provided with, the other end of air inlet pipe 16 connects air supply system, be provided with jet nozzle 11 in the dissolving 5, jet Hiltons sac 12, liquid-level floater 13, dissolved air water absorption tube 15, jet nozzle 11 and pipeline 20 are fixedly connected with by flange, jet nozzle 11 belows and its corresponding position are provided with jet Hiltons sac 12, dissolving 5 bottoms are fixed in by support in jet Hiltons sac 12, be gas-liquid chamber 14 between jet nozzle 11 and the jet Hiltons sac 12, gas-liquid is mixed at 14 places, gas-liquid chamber, when the liquid level in the dissolving 5 is lower than the setting liquid level, liquid-level floater 13 passes to programmable controller 21 in the control cabinet 18 with signal, programmable controller PLC closes magnetic valve 17 and stops air inlet, when the liquid level in the dissolving 5 is higher than the setting liquid level, liquid-level floater 13 passes to programmable controller PLC in the control cabinet 18 with signal, programmable controller PLC opens the continuation air inlet with magnetic valve 17, dissolved air water absorption tube 15 extends to outside the dissolving 5 and is connected with outlet pipe 1, keep the 10-15cm distance at the bottom of dissolved air water absorption tube 15 bottom ports and the tank, be welding with the tank surface.
Outlet pipe 1 is provided with medicine and washes out mouth 2 and discharge pressure transmitter 3, and water inlet pipe 9 is provided with medicine and washes import 8, and medicine washes out mouth 2 and medicine is washed import 8 for the cleaning of greasy dirt after the integral device long-time running and dirty class material.
Be provided with successively check-valves 10 and intake pressure transmitter 4 on the pipeline 20, intake pressure transmitter 4, discharge pressure transmitter 3 are convenient to the running status of monitoring equipment, and the setting of check-valves 10 prevents that the refluence situation of water behind the equipment downtime from occuring.
Dissolving 5 and booster pump 7 are separately fixed on the base 19.
The micro-nano bubble generator running is: the water source at first by booster pump 7 superchargings through pipeline 20, electromagnetic flowmeter 6 to dissolving 5, gas is entered in the dissolving 5 by air inlet pipe 16, the water source advances dissolving 5 and at first passes through jet nozzle 11 via gas-liquid chamber 14, the band air water enters jet Hiltons sac 12, jet Hiltons sac 12 water completely are spilled in the tank, dissolved air water washes out mouth 2 to outlet pipe 1 via discharge pressure transmitter 3, medicine outside dissolved air water absorption tube 15 ejection tanks.The Expenditure Levels of while liquid-level floater 13 feedback gas, the switch air inlet electromagnetic valve 17 according to demand.Source of the gas in the mixing material can use air, oxygen, ozone and nitrogen etc. according to technological requirement, and oxygen is used for the airfloat equipment oil slick and removes water impurity.Oxygen, ozone are on the basis of air supporting treatment effect, and the reducing substances that is used for oxidize water can be used for removing the sulfide in the oilfield sewage, reduce adding of sulfur elimination in the technique.The nitrogen source of the gas plays removal effect for the dissolved oxygen in the oilfield sewage on the basis of air supporting treatment effect, oxygen scavenger adds in the minimizing technique.
Dissolving 5 interior immixture principles: show flow according to electromagnetic flowmeter 6, control booster pump 7 with the power water of quantitative pressure (hydraulic) water as ejector by frequency converter VVVF, current spray from jet nozzle 11 with the High Speed Turbulent bundle of 30-40 meter per second, pass gas-liquid chamber 14, the stable negative pressure of 14 interior formation in the gas-liquid chamber, the gas at suction tank top.Air-water mixture is 12 interior violent turbulent fluctuations, bump, shearing in the jet Hiltons sac, forms emulsified state, makes gas soluble in water.Make gas soluble in water.According to the volume of tank deck gas, in time replenish the required gas of molten gas.Gas-liquid chamber 14 quantitative suction tank top gas bodies, according to the volume of tank deck gas, equipment can in time replenish the needed gas of molten gas.Do not exist conventional dissolving to suck excessive gas and the situation of emitting unnecessary gas.
For the ease of operation and the management of Field Force to equipment, by touch-screen demonstration, programmable controller PLC programme-control, realization is to monitoring display, data record, warning and the operation adjustment of the running status of micro-nano bubble generator equipment, and employing automation of the present invention is controlled.
Control system by PLC Communication module, air-break QF, air-break 1QF, air-break 2QF, frequency converter VVVF, A.C. contactor KM, Switching Power Supply DP, connecting terminal block ST, programmable controller PLC, touch-screen POD, analog module PLC A/D, add gaseity DL1, hydraulic pressure warning DL2, air pressure alarm DL3, relay K A1, relay K A2 and signal from forming every device GL.
One, control system to various sensor input quantities such as intake pressure CH1, produce water pressure CH2, air pressure CH3, flow of inlet water CH4 detect, all kinds fault is reported to the police.And possess preservation and the disposal ability of real time data and historical data, dynamic analog, tabulation are carried out in technological process.To the permanent preservation of key data.And the dynamic color picture directly perceived that shows whole technological process or local link dynamically shows the running status of each parts of technological process.
Control system can be by the network savvy of PLC Communication module realization with control microcomputer.Make things convenient for the ruuning situation of user's remote inquiry equipment.
Two, real-time technology controlling and process:
1, the water yield detects; According to the input quantity of electromagnetic flowmeter 6, be uploaded to touch-screen POD through programmable controller PLC and show.
2, pressure control; By the input quantity that on-the-spot intake pressure transmitter 4, discharge pressure transmitter 3 are measured, VVVF adjusts booster pump 7 pressure through programmable controller PLC control frequency converter.
3, liquid level control; By the input quantity of programmable controller PLC according to liquid-level floater 13, show and 17 actions of control magnetic valve.

Claims (4)

1. micro-nano bubble generator, comprise water inlet pipe (9) and outlet pipe (1), one end of water inlet pipe (9) is connected with the import of booster pump (7), it is characterized in that: described booster pump (7) outlet is connected with dissolving (5) top seal by pipeline (20), pipeline (20) is provided with electromagnetic flowmeter (6), dissolving (5) top seal is communicated with air inlet pipe (16), the magnetic valve (17) that air inlet pipe (16) is provided with, the other end of air inlet pipe (16) connects air supply system, be provided with jet nozzle (11) in the dissolving (5), jet Hiltons sac (12), liquid-level floater (13), dissolved air water absorption tube (15), jet nozzle (11) is connected with pipeline (20), jet nozzle (11) below is provided with jet Hiltons sac (12) with its corresponding position, be gas-liquid chamber (14) between jet nozzle (11) and jet Hiltons sac (12), liquid-level floater (13) passes to the interior programmable controller (PLC) of control cabinet (18) with signal, programmable controller (PLC) control magnetic valve (17) switch, dissolved air water absorption tube (15) extends to outside the dissolving (5) and is connected with outlet pipe (1).
2. micro-nano bubble generator according to claim 1 is characterized in that: outlet pipe (1) is provided with medicine and washes out mouthful (2) and a discharge pressure transmitter (3), and water inlet pipe (9) is provided with medicine and washes import (8).
3. micro-nano bubble generator according to claim 1 is characterized in that: be provided with successively check-valves (10) and intake pressure transmitter (4) on the pipeline (20).
4. micro-nano bubble generator according to claim 1, it is characterized in that: dissolving (5) and booster pump (7) are separately fixed on the base (19).
CN 201110095683 2011-04-15 2011-04-15 Micro nano bubble generator Expired - Fee Related CN102218275B (en)

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CN102218275B true CN102218275B (en) 2013-04-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017201016A1 (en) * 2016-05-17 2017-11-23 Nano Gas Technologies, Inc. Methods of affecting separation

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* Cited by examiner, † Cited by third party
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CN102815802A (en) * 2012-08-08 2012-12-12 安徽迎驾贡酒股份有限公司 Water circulation utilization system for washing bottles
CN103922501A (en) * 2013-01-15 2014-07-16 滕州市水星环保工程有限公司 Radial flow type air flotation machine
CN106477670B (en) * 2016-11-04 2023-04-07 天津斯林力克密封科技有限公司 Demulsification device for oil-containing emulsified sewage
CN109794178A (en) * 2017-11-17 2019-05-24 美的集团股份有限公司 Micro-nano bubble generating device and its control method, the housed device with it
CN108745012B (en) * 2018-06-14 2021-04-20 四川大学 But miniature venturi type bubble generating device of modularization combination
CN110102195A (en) * 2019-04-23 2019-08-09 上海行恒科技有限公司 A kind of micro-nano bubble bathtub of high concentration and its control method
CN109999682B (en) * 2019-04-23 2024-04-09 上海行恒科技有限公司 High-concentration micro-nano bubble shower system
CN116282361A (en) * 2023-04-27 2023-06-23 柳州钢铁股份有限公司 Full-flow state monitoring method for jet air-float oil remover

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CN101869799A (en) * 2009-06-17 2010-10-27 株式会社山口工业 Micron bubble device
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2017201016A1 (en) * 2016-05-17 2017-11-23 Nano Gas Technologies, Inc. Methods of affecting separation

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