CN104043356A - Ultramicro bubble generating device as well as water purification system and method - Google Patents
Ultramicro bubble generating device as well as water purification system and method Download PDFInfo
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Abstract
The invention provides an ultramicro bubble generating device as well as a water purification system and method. The ultramicro bubble generating device comprises a high pressure air supplying machine, a jet device, a high pressure water pump and an air water mixer, wherein the high pressure air supplying machine is connected with the air water mixer; the high pressure water pump is connected with the jet device, and the high pressure water pump is used for generating a high pressure water body and feeding the high pressure water body into the jet device; and the air water mixer is used for enabling high pressure gas and vaporific water drops to contact so as to achieve over-saturation solvation, thus forming an over-saturation air-water salvation solution. The ultramicro bubble generating device as well as the water purification system and method provided by the invention have the beneficial effects that the air-water salvation efficiency and rate are remarkably improved through changing a high pressure water state by the jet device, gas solvation volume is also increased, the volume of the air water mixer is greatly reduced, and although the jet device needs energy dissipation, the unit energy consumption of gas solvation is reduced as the gas solvation amount is greatly improved.
Description
Technical field
The present invention relates to sewage treatment area, relate in particular to ultramicro air bubble generation device and water purification system and method.
Background technology
Water environment treatment is the weakness of China environmental protection, dropped into nearly 30,000,000,000 yuan, but quality of water environment does not improve as administered Dian Chi.
Along with scientific and technological progress, utilize the water technology of microbubble purifying water body from laboratory stage, to develop into practical stage.The current domestic technology such as submicron bubble water treatment technology, micro-nano bubble generation technique that common are, but comprehensively it seems, it is ripe that this class technology is not also tending towards, and be mainly because of failing to stablize, producing equably a large amount of ultramicro air bubbles, to such an extent as to effects of purification quality is not good.
1. submicron bubble water treatment technology:
Adopt symmetrical balance type centrifugal multistage pump multiple centrifugal pump, suck clear water, improve step by step the pressure of water to more than 0.35MPa; Enter gas-water mixer gas is mixed with water, by filtering the body refuse filtering that diameter in water is greater than to 0.35mm, produce the micron-sized bubble of 200 nanometer to 4.In cesspool, add at twice liquid, and bottom stirs, after sewage flocculation 8-15 minute, meet with the micron-sized bubble of above-mentioned 200 nanometer to 4, both abundant combinations, impel flco proportion alleviate and float; Sewage after both abundant combinations enters separate tank from the middle and upper part of flotation tank, stops 20-40 minute in separate tank, makes slag fully separated with water; By Slag Scraping Device, the slag of floating is scraped in sludge-tank; Clear water is drawn by pipeline from separate tank bottom.
2. cyclic gas-liquid mixing type, micro-nano bubble generation technique:
As shown in Figure 1, the liquid that enters air and liquid mixer is High Rotation Speed under pressure, form strong liquid turbulence, water enters blender from upper wall, the liquid of High Rotation Speed forms negative pressuren zone at the place, axis of blender, air from axle center, be sucked into into, from the edge of both sides, flow out, under the flow action of High Rotation Speed, the bubble that enters place, axle center is crashed to pieces and becomes the superfine air bubble that diameter is micro/nano level, can bring into play the function of clean water, the rotary speed of liquid stream is faster, stronger to the pulverization of bubble.
The shortcoming of technology is at present:
1. energy consumption and operating cost are higher;
2. Bubble formation efficiency is low, produces bubbles volume inhomogeneous, unstable, causes pollutant treatment effeciency low, and effluent quality is unstable;
3. Bubble formation process poor controllability, is unfavorable for applying.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of ultramicro air bubble generation device.
The invention provides a kind of ultramicro air bubble generation device, comprise high-pressure air feed machine, ejector, high-pressure hydraulic pump, gas-water mixer, described high-pressure air feed machine is connected with described gas-water mixer, and described high-pressure air feed machine is for generation of gases at high pressure and send in described gas-water mixer; Described high-pressure hydraulic pump is connected with described ejector, and described high-pressure hydraulic pump is for generation of high-pressure water body and send in described ejector; Described ejector is connected with described gas-water mixer, described ejector is for being high-pressure water body high velocity jet loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused, and vaporific water droplet is sent in described gas-water mixer; To reach over-saturation fused for gases at high pressure contacts with vaporific water droplet for described gas-water mixer, thereby formation over-saturation air water fuses liquid.
As a further improvement on the present invention, this ultramicro air bubble generation device also comprises for stablizing step by step the vortex ultra micro voltage-stablizer of step-down, described vortex ultra micro voltage-stablizer is connected with described gas-water mixer, and described vortex ultra micro voltage-stablizer is for receiving the fused liquid of over-saturation air water of described gas-water mixer output.
As a further improvement on the present invention, this ultramicro air bubble generation device also comprises conditioning agent container, conditioning agent conveying mechanism, by described conditioning agent conveying mechanism, the conditioning agent in described conditioning agent container is delivered in described vortex ultra micro voltage-stablizer.
As a further improvement on the present invention, described conditioning agent conveying mechanism comprises measuring pump, and this ultramicro air bubble generation device also comprises the rabbling mechanism stirring for the conditioning agent in described conditioning agent container.
The present invention also provides a kind of ultramicro air bubble production method, comprises the steps:
Gases at high pressure produce step: for generation of gases at high pressure;
Vaporific water droplet produces step: for high-pressure water body high velocity jet being to loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused;
Blend step: to reach over-saturation fused for gases at high pressure are contacted with vaporific water droplet, thereby form the fused liquid of over-saturation air water.
As a further improvement on the present invention, this ultramicro air bubble production method also comprises:
Depressurization step: for the fused liquid of over-saturation air water is stablized to step-down step by step.
As a further improvement on the present invention, this ultramicro air bubble production method also comprises:
Regulating step: for the fused liquid of over-saturation air water is mixed with described conditioning agent, weaken the hydrogen bond between hydrone by conditioning agent, thereby reduce the surface tension of hydrone, be easy to form ultramicro air bubble;
Output step: stablizing step by step under the effect of step-down, the fused liquid of over-saturation high-pressure air-water stably discharges ultramicro air bubble.
As a further improvement on the present invention, at described gases at high pressure, produce in step, by high-pressure air feed machine, produce gases at high pressure;
At described vaporific water droplet, produce in step, by high-pressure hydraulic pump, produce high-pressure water body, by ejector by high-pressure water body high velocity jet be fall apart vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused;
In described blend step, by gas-water mixer, gases at high pressure are contacted with vaporific water droplet to reach over-saturation fused, thereby form the fused liquid of over-saturation air water;
In described depressurization step, by vortex ultra micro voltage-stablizer, the fused liquid of over-saturation air water is stablized to step-down step by step;
In described regulating step, by the conditioning agent in conditioning agent container being delivered in described vortex ultra micro voltage-stablizer, the fused liquid of over-saturation air water is mixed with conditioning agent;
In described output step, will from vortex ultra micro voltage-stablizer, discharge ultramicro air bubble with the fused liquid of the mixed over-saturation air water of conditioning agent.
The present invention also provides a kind of water purification system that comprises described ultramicro air bubble generation device, this water purification system also comprises reaction tank, Slag Scraping Device, described reaction tank is used for making ultramicro air bubble and sewage to mix therein, thereby make polluter float to the water surface, forms foam; Described Slag Scraping Device is used for defoaming.
The present invention also provides a kind of method for purifying water that comprises described ultramicro air bubble production method, and this method for purifying water also comprises:
Reactions steps: for ultramicro air bubble and sewage are mixed, form foam thereby make polluter float to the water surface;
Remove step: for defoaming.
The invention has the beneficial effects as follows: ejector can not only significantly improve the fused efficiency of air water and speed by changing high-pressure water body form, but also can increase the fused amount of gas, and greatly dwindles the volume of gas-water mixer; Although ejector needs power consumption, because the fused amount of gas significantly improves, therefore the fused energy consumption of unit gas reduces on the contrary.
Accompanying drawing explanation
Fig. 1 is the liquid schematic diagram of High Rotation Speed under pressure that enters air and liquid mixer.
Fig. 2 is the principle schematic of ultramicro air bubble generation device one embodiment of the present invention.
Fig. 3 is the principle schematic of another embodiment of ultramicro air bubble generation device of the present invention.
The specific embodiment
We are on the basis of early-stage Study experiment, research and the product development of ultramicro air bubble generating means are emphatically proposed, be intended to develop the ultramicro air bubble generation device that energy consumption is low, simple to operate, can automatically move, thereby produce stable, ultramicro air bubble uniformly systematically in a large number, the object that can apply in actual water treatment field to realize the water technology technique of utilizing ultramicro air bubble to carry out purification of water quality.As shown in Figure 2, the invention discloses a kind of ultramicro air bubble generation device, comprise high-pressure air feed machine 1, ejector 2, high-pressure hydraulic pump 3, gas-water mixer 4, described high-pressure air feed machine 1 is connected with described gas-water mixer 4, and described high-pressure air feed machine 1 is for generation of gases at high pressure and send in described gas-water mixer 4; Described high-pressure hydraulic pump 3 is connected with described ejector 2, and described high-pressure hydraulic pump 3 is for generation of high-pressure water body and send in described ejector 2; Described ejector 2 is connected with described gas-water mixer 4, described ejector 1 is for being high-pressure water body high velocity jet loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused, and vaporific water droplet is sent in described gas-water mixer 4; To reach over-saturation fused for gases at high pressure are contacted with vaporific water droplet for described gas-water mixer 4, thereby form the fused liquid of over-saturation air water.
In when work, first utilize 3 pairs of water bodys of high-pressure hydraulic pump to carry out high strength supercharging, first high-pressure water body passes through ejector 2, water under high pressure high velocity jet and be loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are able to effectively fuse.Then, vaporific water droplet enters gas-water mixer 4, thereby fully contact with gases at high pressure and reach rapidly the fused fused liquid of over-saturation air water that forms of over-saturation, gas-water mixer 4 reaches after design pressure and liquid appearance, and the fused liquid Automatic continuous of over-saturation air water in it discharges ultramicro air bubble.
Ultramicro air bubble comprises micron order, submicron order bubble.
As shown in Figure 3, this ultramicro air bubble generation device also comprises for stablizing step by step the vortex ultra micro voltage-stablizer 5 of step-down, described vortex ultra micro voltage-stablizer 5 is connected with described gas-water mixer 4, and described vortex ultra micro voltage-stablizer 5 is for receiving the fused liquid of over-saturation air water of described gas-water mixer 4 outputs.This ultramicro air bubble generation device also comprises conditioning agent container 6, conditioning agent conveying mechanism, by described conditioning agent conveying mechanism, the conditioning agent in described conditioning agent container 6 is delivered in described vortex ultra micro voltage-stablizer 5.
Described conditioning agent conveying mechanism comprises measuring pump 7, and this ultramicro air bubble generation device also comprises the rabbling mechanism 8 stirring for the conditioning agent in described conditioning agent container 6.
During work, after the fused liquid of over-saturation air water in gas-water mixer 4 enters vortex ultra micro voltage-stablizer 5, mix with the conditioning agent adding, conditioning agent can weaken the hydrogen bond between hydrone, thereby reduces the surface tension of hydrone, is easy to form ultramicro air bubble.At vortex ultra micro voltage-stablizer 5, stablize step by step under the effect of step-down, the fused liquid of over-saturation high-pressure air-water can stably discharge a large amount of intensive micron order, submicron order bubbles, avoids pressure reduction moment excessive and cause the problems such as bubbles volume is unstable, Air Bubble Size is inhomogeneous.
The invention also discloses a kind of ultramicro air bubble production method, comprise the steps:
Gases at high pressure produce step: for generation of gases at high pressure;
Vaporific water droplet produces step: for high-pressure water body high velocity jet being to loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused;
Blend step: to reach over-saturation fused for gases at high pressure are contacted with vaporific water droplet, thereby form the fused liquid of over-saturation air water.
This ultramicro air bubble production method also comprises:
Depressurization step: for the fused liquid of over-saturation air water is stablized to step-down step by step.In described depressurization step, by vortex ultra micro voltage-stablizer, the fused liquid of over-saturation air water is stablized to step-down step by step.
This ultramicro air bubble production method also comprises:
Regulating step: for the fused liquid of over-saturation air water is mixed with described conditioning agent, weaken the hydrogen bond between hydrone by conditioning agent, thereby reduce the surface tension of hydrone, be easy to form ultramicro air bubble;
Output step: stablizing step by step under the effect of step-down, the fused liquid of over-saturation high-pressure air-water stably discharges ultramicro air bubble.
At described gases at high pressure, produce in step, by high-pressure air feed machine, produce gases at high pressure;
At described vaporific water droplet, produce in step, by high-pressure hydraulic pump, produce high-pressure water body, by ejector by high-pressure water body high velocity jet be fall apart vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused;
In described blend step, by gas-water mixer, gases at high pressure are contacted with vaporific water droplet to reach over-saturation fused, thereby form the fused liquid of over-saturation air water;
In described regulating step, by the conditioning agent in conditioning agent container being delivered in described vortex ultra micro voltage-stablizer, the fused liquid of over-saturation air water is mixed with conditioning agent;
In described output step, will from vortex ultra micro voltage-stablizer, discharge ultramicro air bubble with the fused liquid of the mixed over-saturation air water of conditioning agent.
The invention also discloses a kind of water purification system that comprises described ultramicro air bubble generation device, this water purification system also comprises reaction tank, Slag Scraping Device, described reaction tank is used for making ultramicro air bubble and sewage to mix therein, thereby make polluter float to the water surface, forms foam; Described Slag Scraping Device is used for defoaming.
During work, ultramicro air bubble enters reaction tank, and after mixing with sewage, polluter floats to the water surface and forms foam, removes, thereby reach removal water pollutant, the target of purifying water body by Slag Scraping Device.
The invention also discloses a kind of method for purifying water that comprises described ultramicro air bubble production method, this method for purifying water also comprises:
Reactions steps: for ultramicro air bubble and sewage are mixed, form foam thereby make polluter float to the water surface;
Remove step: for defoaming.
Quality problem root is that organic matter in water (COD), N, P exceed standard, and suspension (SS) concentration is high, and dissolved oxygen concentration is low, only has effective removal COD, N, P, SS, and could thoroughly solve quality problem to water body oxygenation simultaneously.Therefore, by water purification system of the present invention and method, can remove fast various pollutants in water body, to reach the object of purifying water body, its principle is as follows:
1. sedimentation breaking rapidly in the irregular microbubble short time, the energy producing while following microbubbles rupture shifts, hydrogen bond between hydrone and hydrone covalent bond rupture simultaneously, hydrone decomposed, produce the free electron carriers such as the extremely strong hydroxy of oxidisability, oxygen radical, the oxidation of hydroxyl free radical is especially obvious, organic matter in water (COD) directly can be decomposed, and have sterilization and decolouring function.
The ultramicro air bubble of micron order, submicron order directly wrapped folder live the suspensions such as colloid in water, silt, suspension is floated up to the water surface under the acting in conjunction of flocculant and form foam, thereby separate from water body, SS content in fast reducing water, improve water transparency, and can adhere to the algae in water simultaneously, and separated removal, by reducing rapidly N, P content except algae.
3. the free radical producing while following microbubbles rupture, make water body there is stronger oxidative function, can the heavy metal ion in water be combined and form oxide, then rely on ultramicro air bubble by heavy metallic oxide wrapped folder, thereby float up to the water surface, form foam and be removed.
4. the ammonia nitrogen in water exists with the state of ammonium ion (NH4+) and free ammonia (NH3) conventionally, a large amount of ultramicro air bubbles enter after water body, free ammonia (NH3) can be along with the floating of ultramicro air bubble stripping out, ammonium ion (NH4+) also can be combined with hydroxyl:, the NH3 of generation is also thereupon separated by stripping.
5. ultramicro air bubble has increased the contact area of empty G&W greatly, and oxygen molecule easily dissolves in the micel gap of water, approximately has 85% oxygen to be fully dissolved in the water in air, makes the dissolved oxygen in water reach supersaturation.
The present invention has the lower beneficial effect of bag:
Ejector can not only significantly improve the fused efficiency of air water and speed by changing high-pressure water body form, but also can increase the fused amount of gas, and greatly dwindles the volume of gas-water mixer; Although ejector needs power consumption, because the fused amount of gas significantly improves, therefore the fused energy consumption of unit gas reduces on the contrary.
By adding conditioning agent, weaken the hydrogen bond between hydrone, thereby reduce the surface tension of water, in the situation that not improving system energy consumption, can impel and form a large amount of stable ultramicro air bubbles.
Vortex ultra micro voltage-stablizer can be stablized step-down step by step, makes high-pressure water body stably discharge a large amount of intensive micron order, submicron order bubbles, avoids pressure reduction moment excessive and cause the problems such as bubbles volume is unstable, Air Bubble Size is inhomogeneous.
The present invention is strong to various contaminant removal capacity, oxygen-transfer efficiency is high, do not add the chemical agent of any polluted water, ecological property is good, can meet the water treatment requirement in different quality situation, can be applicable to the processing such as river, lake water, landscape water and sanitary sewage, and can help recover the ecosystem and form good landscape effect.
The present invention is easy to realize fully automatic operation, and simple and convenient operation and maintenance is conducive to apply.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a ultramicro air bubble generation device, it is characterized in that: comprise high-pressure air feed machine, ejector, high-pressure hydraulic pump, gas-water mixer, described high-pressure air feed machine is connected with described gas-water mixer, and described high-pressure air feed machine is for generation of gases at high pressure and send in described gas-water mixer; Described high-pressure hydraulic pump is connected with described ejector, and described high-pressure hydraulic pump is for generation of high-pressure water body and send in described ejector; Described ejector is connected with described gas-water mixer, described ejector is for being high-pressure water body high velocity jet loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused, and vaporific water droplet is sent in described gas-water mixer; To reach over-saturation fused for gases at high pressure contacts with vaporific water droplet for described gas-water mixer, thereby formation over-saturation air water fuses liquid.
2. ultramicro air bubble generation device according to claim 1, it is characterized in that: this ultramicro air bubble generation device also comprises for stablizing step by step the vortex ultra micro voltage-stablizer of step-down, described vortex ultra micro voltage-stablizer is connected with described gas-water mixer, and described vortex ultra micro voltage-stablizer is for receiving the fused liquid of over-saturation air water of described gas-water mixer output.
3. ultramicro air bubble generation device according to claim 2, it is characterized in that: this ultramicro air bubble generation device also comprises conditioning agent container, conditioning agent conveying mechanism, by described conditioning agent conveying mechanism, the conditioning agent in described conditioning agent container is delivered in described vortex ultra micro voltage-stablizer.
4. ultramicro air bubble generation device according to claim 3, is characterized in that: described conditioning agent conveying mechanism comprises measuring pump, and this ultramicro air bubble generation device also comprises the rabbling mechanism stirring for the conditioning agent in described conditioning agent container.
5. a ultramicro air bubble production method, is characterized in that, comprises the steps:
Gases at high pressure produce step: for generation of gases at high pressure;
Vaporific water droplet produces step: for high-pressure water body high velocity jet being to loose vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused;
Blend step: to reach over-saturation fused for gases at high pressure are contacted with vaporific water droplet, thereby form the fused liquid of over-saturation air water.
6. ultramicro air bubble production method according to claim 5, is characterized in that, this ultramicro air bubble production method also comprises:
Depressurization step: for the fused liquid of over-saturation air water is stablized to step-down step by step.
7. ultramicro air bubble production method according to claim 6, is characterized in that, this ultramicro air bubble production method also comprises:
Regulating step: for the fused liquid of over-saturation air water is mixed with described conditioning agent, weaken the hydrogen bond between hydrone by conditioning agent, thereby reduce the surface tension of hydrone, be easy to form ultramicro air bubble;
Output step: stablizing step by step under the effect of step-down, the fused liquid of over-saturation high-pressure air-water stably discharges ultramicro air bubble.
8. ultramicro air bubble production method according to claim 5, is characterized in that:
At described gases at high pressure, produce in step, by high-pressure air feed machine, produce gases at high pressure;
At described vaporific water droplet, produce in step, by high-pressure hydraulic pump, produce high-pressure water body, by ejector by high-pressure water body high velocity jet be fall apart vaporific, and under formed suction function air amount, vaporific water droplet and air amount are fused;
In described blend step, by gas-water mixer, gases at high pressure are contacted with vaporific water droplet to reach over-saturation fused, thereby form the fused liquid of over-saturation air water;
In described depressurization step, by vortex ultra micro voltage-stablizer, the fused liquid of over-saturation air water is stablized to step-down step by step;
In described regulating step, by the conditioning agent in conditioning agent container being delivered in described vortex ultra micro voltage-stablizer, the fused liquid of over-saturation air water is mixed with conditioning agent;
In described output step, will from vortex ultra micro voltage-stablizer, discharge ultramicro air bubble with the fused liquid of the mixed over-saturation air water of conditioning agent.
9. a water purification system that comprises ultramicro air bubble generation device described in claim 1 to 4 any one, it is characterized in that: this water purification system also comprises reaction tank, Slag Scraping Device, described reaction tank is used for making ultramicro air bubble and sewage to mix therein, thereby make polluter float to the water surface, forms foam; Described Slag Scraping Device is used for defoaming.
10. a method for purifying water that comprises ultramicro air bubble production method described in claim 5 to 8 any one, is characterized in that, this method for purifying water also comprises:
Reactions steps: for ultramicro air bubble and sewage are mixed, form foam thereby make polluter float to the water surface;
Remove step: for defoaming.
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| CN113351040A (en) * | 2021-06-29 | 2021-09-07 | 广东吉之源环保科技有限公司 | Double-rotary high-energy ultra-fine bubble generator |
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