CN103990344B - Based on TiO 2the atomizing PM2.5 purifier of nano-fluid - Google Patents
Based on TiO 2the atomizing PM2.5 purifier of nano-fluid Download PDFInfo
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- CN103990344B CN103990344B CN201410212274.7A CN201410212274A CN103990344B CN 103990344 B CN103990344 B CN 103990344B CN 201410212274 A CN201410212274 A CN 201410212274A CN 103990344 B CN103990344 B CN 103990344B
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Abstract
The invention discloses a kind of based on TiO
2the atomizing PM2.5 purifier of nano-fluid, comprises air blast, air inlet pipe, water pipe, water pump, spraying purifying vessel, the first top cover, sprayer, the first demist filter, communicating pipe, rotation purifying vessel, bubble cutting machine, motor, TiO
2nano-fluid, blast pipe, anion generator, muffler, the second top cover and the second demist filter; Sprayer is positioned at inside spraying purifying vessel, and the first demist filter is fixedly connected in spraying purifying vessel; Bubble cutting machine and the second demist filter are arranged in and rotate purifying vessel, and blast pipe arranges in the second top cover, and blast pipe is communicated with the inner side and outer side of shearing clarifier; The power transmission shaft of motor is connected with bubble cutting machine through the sidewall rotating purifying vessel; TiO is equipped with in spraying purifying vessel and rotation purifying vessel
2nano-fluid.This purifier can PM2.5 particle effectively in absorbed air.
Description
Technical field
The invention belongs to technical field of air purification, specifically, relate to based on TiO
2the atomizing PM2.5 purifier of nano-fluid, this purifier is particularly useful for the gas cleaning such as PM2.5 dust, nitrogen oxide, aromatic hydrocarbons and aldehydes in air.
Background technology
PM2.5 refers to that in surrounding air, aerodynamics equivalent diameter is less than or equal to the particle of 2.5 microns.It can be suspended in air the long period, and content concn is higher in atmosphere for it, just represents air pollution more serious.Although PM2.5 is the component that in earth atmosphere composition, content is little, it has important impact to air quality and visibility etc.Compared with thicker Atmospheric particulates, PM2.5 particle diameter is little, and area is large, active strong, easily attach poisonous and harmful substances (such as, heavy metal, microorganism etc.), and the time of staying is in an atmosphere grown, fed distance is far away, thus larger on the impact of health and atmosphere quality.Research shows, the less harm to health of particle is larger.PM2.5 can waft to place far away, and therefore coverage is larger.PM2.5 is larger to the harm of health, because diameter is less, the position entering respiratory tract is darker.The particle of 10 μm of diameters is deposited on the upper respiratory tract usually, the be deep into bronchiole of less than 2 μm and alveolar.After PM2.5 enters human body to alveolar, directly affect the ventilatory function of lung, make body easily be in anaerobic condition.
The main counter-measure of current PM2.5 is mainly divided into following three kinds: 1) filtration method, and comprise air-conditioning, humidifier, air freshener etc., advantage obviously reduces the concentration of PM2.5, and shortcoming is that filter membrane needs cleaning or changes.2) water adsorption method.Ultrasonic atomizer, indoor cascade, pond, fish jar etc., can absorb the hydrophily PM2.5 in air, and shortcoming increases humidity, and hydrophobicity PM2.5 can not effectively remove.3) plant absorption method.Plant leaf blade has larger surface area, and can absorb pernicious gas and absorption PM2.5, advantage to produce favourable gas, and shortcoming is that absorption efficiency is low, and some plant can produce pernicious gas.Traditional air purifier utilizes solid (state) grid film (namely applying different grid film/cloth), take the method such as " stop ", " isolation ", " absorption ", filter out the fine particle in air, reach the object of " purification " air.In fact this grid film/cloth is only effective to the particle of diameter >3.0 μm, can by its " filtration resistance " outside, and the PM2.5 particle filtering to diameter≤2.5 μm.Existing advanced efficient purifier film is that HEPA/ULPA combines solid film (borosilicate fibers paper dress film) in the world now, but also can only the PM2.5 fine grained of filtration resistance part, to the particle filtration resistance weak effect of below PM2.0, especially its function damped cycle is very fast, generally can only single use, thus make this filter be difficult to extensive use, general favour is popular.Can find out, all there is this certain defect for the PM2.5 purification in air in existing puckery north, Low-cost, efficiently PM2.5 purifier are significantly problems.
Summary of the invention
Technical problem: technical problem to be solved by this invention is: provide based on TiO
2the atomizing PM2.5 purifier of nano-fluid, can PM2.5 particle effectively in absorbed air.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of based on TiO
2the atomizing PM2.5 purifier of nano-fluid, this purifier comprises air blast, air inlet pipe, water pipe, water pump, spraying purifying vessel, the first top cover, sprayer, the first demist filter, communicating pipe, rotation purifying vessel, bubble cutting machine, motor, TiO
2nano-fluid, blast pipe, anion generator, muffler, the second top cover and the second demist filter; Described air blast is connected to the bottom of spraying purifying vessel by air inlet pipe, sprayer is positioned at inside spraying purifying vessel, water pump is positioned at outside spraying purifying vessel, the water inlet of sprayer is connected with the water side of water pump by water pipe, and the water inlet end of water pump is communicated with bottom spraying purifying vessel by water pipe; First top cover is fixedly connected on the top of spraying purifying vessel, and the first demist filter is fixedly connected in the inner chamber of spraying purifying vessel, and the first demist filter is between the first top cover and sprayer;
One end of communicating pipe is arranged in spraying purifying vessel, and is positioned at above the first demist filter, and the other end of communicating pipe, through the first top cover, is fixedly connected on the bottom rotating purifying vessel; Bubble cutting machine and the second demist filter lay respectively at and rotate in purifying vessel, second demist filter is fixedly connected on the inwall of rotation purifying vessel, and the second demist filter is positioned at above bubble cutting machine, second top cover is fixedly connected on the top rotating purifying vessel, blast pipe arranges in the second top cover, and blast pipe is communicated with the inner side and outer side of shearing clarifier; Above blast pipe, muffler and anion generator are installed successively; Motor is positioned at the outside rotating purifying vessel, and the power transmission shaft of motor is connected with bubble cutting machine through the sidewall rotating purifying vessel; TiO is equipped with in spraying purifying vessel and rotation purifying vessel
2nano-fluid, and the TiO in spraying purifying vessel
2the liquid level of nano-fluid is positioned at below sprayer, rotates the TiO in purifying vessel
2the liquid level of nano-fluid is between bubble cutting machine end face and the second demist filter.
Further, described bubble cutting machine comprises rotating shaft and axially cuts net, and rotating shaft level is laid, and axially cutting net is fixedly connected in rotating shaft, and axially cutting net parallels with rotating shaft, and axially cutting net is formed by the crisscross laying of cutting wire.
Further, the diameter of described cutting wire is 0.3-0.5mm, and spacing is 0.5-1mm.
Further, the first described top cover and the second top cover are single piece.
Further, the wall of described spraying purifying vessel and rotation purifying vessel all adopts printing opacity safety glass to make.
Further, described TiO
2nano-fluid is by anatase titanium dioxide TiO
2spherical nanoparticles, dispersant, pH value regulator and base fluid form, dispersant to be molecular weight be 1000 polyethylene glycol, pH value regulator is NaOH powder, and base fluid is pure water, anatase titanium dioxide TiO
2spherical nanoparticles accounts for TiO
2the mass fraction of nano-fluid is 0.5%, and dispersant accounts for TiO
2the mass fraction of nano-fluid is that 0.3%, NaOH accounts for TiO
2the mass fraction of nano-fluid is 0.002%, and surplus is pure water.
Further, described anatase titanium dioxide TiO
2the particle diameter of spherical nanoparticles is 15nm.
Further, described TiO
2nano-fluid is prepared from by following steps:
Step 10) first in pure water, add NaOH powder successively, molecular weight be 1000 polyethylene glycol and anatase titanium dioxide TiO2 nano particle, form initial nano-fluid, in initial nano-fluid, the mass fraction of anatase titanium dioxide TiO2 nano particle in initial nano-fluid is 1%, the mass fraction of NaOH in initial nano-fluid is 0.004%, molecular weight be 1000 the mass fraction of polyethylene glycol in initial nano-fluid be 0.6%;
Step 20) utilize constant temperature blender with magnetic force, be under the environment of 20 DEG C in temperature, whipping step 10) initial nano-fluid 120 minutes;
Step 30) be in the ultrasonic water bath of 20 DEG C in temperature, oscillation step 20) initial nano-fluid after process 30 minutes, frequency of oscillation is 45kHz;
Step 40) utilize ultraviolet-uisible spectrophotometer, measuring process 30) absorbance A of initial nano-fluid after vibration
ini;
Step 50) by step 30) vibration after initial nano-fluid leave standstill 24 hours, this initial nano-fluid is divided into the nano-fluid of the non-sedimentation in upper strata and the nano particle of lower floor's sedimentation, is then separated by the nano-fluid of non-for upper strata sedimentation;
Step 60) utilize ultraviolet-uisible spectrophotometer, measuring process 50) absorbance A of nano-fluid separated
af;
Step 70) use pure water dilution step 50) nano-fluid separated, dilution ratio is: the nano-fluid quality separated: the pure water quality=A added
ini: (2A
af-A
ini), thus acquisition mass fraction is the TiO of 0.5%
2nano-fluid.
Beneficial effect: compared with prior art, the present invention has following beneficial effect:
(1) can PM2.5 particle effectively in absorbed air.In the present invention, TiO
2solid nanoparticles belongs to hydrophobic solid particle, can be disperseed very well with alkaline solution by PEG1000 surfactant.The present invention can make PM2.5 in air at TiO
2under the suction-operated that nano particle is strong, " molten " is in alkaline solution together, and the PM2.5 especially for hydrophobicity has good catharsis.
(2) TiO of the present invention
2nano-fluid is by anatase titanium dioxide TiO
2spherical nanoparticles, dispersant, pH value regulator and base fluid form.By adding PEG1000 dispersant and adjust ph, utilizing nano-fluid relative to the more Investigation of stabilized dispersion of nano of micron aerosol liquid, making TiO
2nano-fluid scavenging solution energy stable existence, not easily reunites, can Long-Time Service.NaOH in solution can play and promote TiO2 nano particle stable dispersion, and effectively can remove in air the particle of the group such as the acidic molecular that comprises carbon dioxide, formaldehyde, hydrogen sulfide.Meanwhile, the wall of spraying purifying vessel of the present invention and rotation purifying vessel all adopts printing opacity safety glass system, effectively can utilize TiO
2nano particle this strong sterilization possessed under photocatalysis and air purification effect.And TiO
2nano-fluid in white, long-time use absorbed air particle and impurity after can become muddy, can intuitively, effectively to TiO
2nano-fluid is changed.
(3) the present invention utilizes the small-size effect of nano particle in nano-fluid and diffusivity strong in a liquid, makes nano particle just even, stable being distributed in whole liquid of energy only needing seldom amount.PM2.5 for very small macroscopic view, but is but very big particle for nano particle.The present invention is purified and shears purification process and makes liquid and TiO wherein by liquid film
2nano particle fully contacts with the PM2.5 in air, makes hydrophily PM2.5 be dissolved in solution, the TiO of hydrophobicity PM2.5 then owing to adsorbing same hydrophobicity
2nano particle (TiO
2nano particle can disperse with alkaline solution very well due to the effect of PEG1000 dispersant), at TiO
2under the drive of nano particle, make hydrophobicity PM2.5 also can together " molten " in alkaline solution.
(4) the present invention sets nano-fluid sprayer in spraying purifying vessel, makes TiO
2nano-fluid is atomized, and nano-fluid is fully contacted with air to be clean, and nano-fluid drop can particle effectively in absorbed air, and TiO
2metal oxide density is comparatively large, adds the first demist filter at spraying purifying vessel top, makes in absorbed air after particle, and the effective sedimentation of energy in a liquid, and utilizes water pump to recycle.
(5) the present invention sets bubble cutting machine in rotation purifying vessel, bubble is more effectively cut into less, and better " shower " is with nano-fluid.Motor rotates the rotation making nano particle carry out at a high speed, and the ability making nano particle puncture bubble is strengthened, and makes the better Contact-sorption of the PM2.5 of nano particle in bubble, can better " molten " in alkaline base fluid.
(6) present invention employs spraying purifying vessel and rotate purifying vessel two-step purification, can make the relatively large particle of volume and comprise the particle of the acidic molecular such as carbon dioxide, formaldehyde, hydrogen sulfide group, and the particle soluble in water such as nitrate, sulfate, ammonium salt, sodium salt can purify well in spraying purifying vessel.Very tiny particle and hydrophobicity particle then purify mainly through the nano-fluid rotated in purifying vessel.Because in spraying purifying vessel, nano-fluid use amount is relatively less, effectively can avoid larger particle and the particle comprising the acidic molecular groups such as carbon dioxide, formaldehyde, hydrogen sulfide, and the impact on nano-fluid in the rotation purifying vessel of large usage quantity such as nitrate, sulfate, ammonium salt, sodium salt, the service time of nano-fluid in the rotation purifying vessel of prolongation large usage quantity, only need with a small amount of nano-fluid changed in spraying purifying vessel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be test provided by the invention than absorbance curve figure.
Figure comprises: air blast 1, air inlet pipe 2, water pipe 3, water pump 4, spraying purifying vessel 5, first top cover 6, sprayer 7, first demist filter 8, communicating pipe 9, rotation purifying vessel 10, bubble cutting machine 11, motor 12, TiO
2nano-fluid 13, blast pipe 14, muffler 15, anion generator 16, second top cover 17 and the second demist filter 18.
Detailed description of the invention
As shown in Figure 1, of the present invention based on TiO
2the atomizing PM2.5 purifier of nano-fluid, comprises air blast 1, air inlet pipe 2, water pipe 3, water pump 4, spraying purifying vessel 5, first top cover 6, sprayer 7, first demist filter 8, communicating pipe 9, rotates purifying vessel 10, bubble cutting machine 11, motor 12, TiO
2nano-fluid 13, blast pipe 14, muffler 15, anion generator 16, second top cover 17 and the second demist filter 18.Air blast 1 is connected to the bottom of spraying purifying vessel 5 by air inlet pipe 2.Sprayer 7 is positioned at inside spraying purifying vessel 5.Water pump 4 is positioned at outside spraying purifying vessel 5.The water inlet of sprayer 7 is connected with the water side of water pump 4 by water pipe 3.The water inlet end of water pump 4 is communicated with bottom spraying purifying vessel 5 by water pipe 3.First top cover 6 is fixedly connected on the top of spraying purifying vessel 5.First demist filter 8 is fixedly connected in the inner chamber of spraying purifying vessel 5, and the first demist filter 8 is between the first top cover 6 and sprayer 7.
One end of communicating pipe 9 is arranged in spraying purifying vessel 5, and is positioned at above the first demist filter 8.The other end of communicating pipe 9, through the first top cover 6, is fixedly connected on the bottom rotating purifying vessel 10.Bubble cutting machine 11 and the second demist filter 18 lay respectively at and rotate in purifying vessel 10.Second demist filter 18 is fixedly connected on the inwall of rotation purifying vessel 10, and the second demist filter 18 is positioned at above bubble cutting machine 11.Second top cover 17 is fixedly connected on the top rotating purifying vessel 10.Blast pipe 14 arranges in the second top cover 17, and blast pipe 14 is communicated with the inner side and outer side of shearing clarifier 11.Muffler 15 and anion generator 16 are installed above blast pipe 14 successively.Muffler 15 is between blast pipe 14 and anion generator 16.Motor 12 is positioned at the outside rotating purifying vessel 10, and the power transmission shaft of motor 12 is connected with bubble cutting machine 11 through the sidewall rotating purifying vessel 10.TiO is equipped with in spraying purifying vessel 5 and rotation purifying vessel 10
2nano-fluid 13, and the TiO in spraying purifying vessel 5
2the liquid level of nano-fluid 13 is positioned at below sprayer 7.Rotate the TiO in purifying vessel 10
2the liquid level of nano-fluid 13 is between bubble cutting machine 11 end face and the second demist filter 18.
Further, described bubble cutting machine 11 comprises rotating shaft and axially cuts net, and rotating shaft level is laid, and axially cutting net is fixedly connected in rotating shaft, and axially cutting net parallels with rotating shaft, and axially cutting net is formed by the crisscross laying of cutting wire.
Further, the diameter of described cutting wire is 0.3-0.5mm, and spacing is 0.5-1mm.
Further, the first described top cover 6 and the second top cover 17 are single piece.
Further, the wall of described spraying purifying vessel 5 and rotation purifying vessel 10 all adopts printing opacity safety glass to make.Spray in the present invention purifying vessel 5 and the wall that rotates purifying vessel 10 all adopts the safety glass material of printing opacity, effectively can utilize TiO
2photo-catalyst effect, effectively increase the discomposing effect of pollutants in air as nitrogen oxide, aromatic hydrocarbons and aldehydes.
The course of work of the purifier of said structure is as follows:
Air to be clean is squeezed into bottom spraying purifying vessel 5, through the TiO be positioned at bottom spraying purifying vessel 5 by air blast 1 by air inlet pipe 2
2after nano-fluid, with the TiO of spray purifier 2 atomized inside
2nano-fluid drop fully contacts, and makes TiO
2nano-fluid fully contacts with air to be clean, makes TiO
2nano-fluid drop can particle effectively in absorbed air, and TiO
2metal oxide density is comparatively large, adds the first demist filter 13 that spraying purifying vessel 5 is atomized top, to make in absorbed air after particle can effective sedimentation in a liquid, and utilize water pump 4 to recycle.
Under the purification of spraying purifying vessel 5, the relatively large particle of volume and comprise the particle of the acidic molecular groups such as carbon dioxide, formaldehyde, hydrogen sulfide, and the particle soluble in water such as nitrate, sulfate, ammonium salt, sodium salt can well " molten " in the TiO of spraying purifying vessel 5
2in nano-fluid.Meanwhile, pollutants in air such as nitrogen oxide, aromatic hydrocarbons and aldehydes etc. also can at TiO
2decompose under the photocatalysis of nano-fluid and purification, very tiny particle and hydrophobicity particle then purify mainly through the nano-fluid rotated in purifying vessel 10.
Gas by purifying vessel 5 of spraying out after, rotate in purifying vessel 10 by entering communicating pipe 9.Under the dissection rotating bubble cutting machine 11 in purifying vessel 10, gas is cracked into countless minute bubbles, and bubble can more effectively be cut into less, better " shower " and TiO
2in nano-fluid.Motor 12 rotates, and drives bubble cutting machine 11 to rotate, makes TiO
2nano particle carries out rotational flow at a high speed, strengthens TiO
2nano particle punctures the ability of bubble, and makes TiO
2the better Contact-sorption of PM2.5 particle in nano particle and bubble.For stock size, PM2.5 is difficult to seizure due to very small, but for TiO
2nano particle, PM2.5 belongs to the very large solid of volume, TiO
2nano particle adsorbs solid particle, and utilizes TiO
2nano particle absorption dispersant after hydrophilic interaction, make PM2.5 can better together " molten " in alkaline base fluid.
Through spraying purifying vessel 5 and the air after rotating purifying vessel 10 two-step purification, enter in blast pipe 14 after the second demist filter 18, and after flowing through muffler 15 and anion generator 16, be discharged to outside of containers, complete whole purification process.
Be difficult to remove PM2.5, filter membrane needs often with changing and being difficult to remove the defects such as hydrophobicity PM2.5 to overcome existing air cleaning facility, of the present invention based on TiO
2the atomizing PM2.5 purifier of nano-fluid, utilizes nano-fluid relative to the more stable dispersion performance of micron aerosol liquid, makes TiO
2nano-fluid scavenging solution energy stable existence, not easily reunites, can Long-Time Service.Utilize TiO
2the small-size effect of nano particle and diffusivity strong in a liquid in nano-fluid, make only to need the nano particle of seldom amount just can even, stable being distributed in whole liquid.
In the present invention, described TiO
2nano-fluid 13 is by anatase titanium dioxide TiO
2spherical nanoparticles, dispersant, pH value regulator and base fluid form, dispersant to be molecular weight be 1000 polyethylene glycol (PEG1000), pH value regulator is NaOH powder, and base fluid is pure water, anatase titanium dioxide TiO
2spherical nanoparticles accounts for TiO
2the mass fraction of nano-fluid 13 is 0.5%, and dispersant accounts for TiO
2the mass fraction of nano-fluid 13 is that 0.3%, NaOH accounts for TiO
2the mass fraction of nano-fluid 13 is 0.002%, and surplus is pure water.As preferably, described anatase titanium dioxide TiO
2the particle diameter of spherical nanoparticles is 15nm.
This TiO
2the preparation method of nano-fluid, comprises the following steps:
Step 10) in pure water, first add NaOH powder, PEG1000 and anatase titanium dioxide TiO2 nano particle successively, form initial nano-fluid, in initial nano-fluid, the mass fraction of anatase titanium dioxide TiO2 nano particle is 1%, NaOH mass fraction is 0.004%, PEG1000 mass fraction is 0.6%;
Step 20) utilize constant temperature blender with magnetic force, be under the environment of 20 DEG C in temperature, whipping step 10) initial nano-fluid 120 minutes;
Step 30) be in the ultrasonic water bath of 20 DEG C in temperature, oscillation step 20) initial nano-fluid after process 30 minutes, frequency of oscillation is 45kHz;
Step 40) utilize ultraviolet-uisible spectrophotometer, measuring process 30) absorbance A of initial nano-fluid after vibration
ini;
Step 50) by step 30) vibration after initial nano-fluid leave standstill 24 hours, this initial nano-fluid is divided into the nano-fluid of the non-sedimentation in upper strata and the nano particle of lower floor's sedimentation, is then separated by the nano-fluid of non-for upper strata sedimentation;
Step 60) utilize ultraviolet-uisible spectrophotometer, measuring process 50) absorbance A of nano-fluid separated
af;
Step 70) use pure water dilution step 50) nano-fluid separated, dilution ratio is: the nano-fluid quality separated: the pure water quality=A added
ini: (2A
af-A
ini), thus acquisition mass fraction is the TiO of 0.5%
2nano-fluid.
By TiO prepared by above step
2nano-fluid possesses better dispersion stabilization.TiO prepared by said method
2nano-fluid, and TiO prepared by existing method
2nano-fluid carries out dispersion stabilization and compares.Existing method comprises: (a) adds TiO directly in pure water
2nano particle, and stir, TiO
2the mass fraction that nano particle accounts for whole solution is 0.5%.B () adds TiO directly in pure water
2nano particle and sodium hydroxide powder, and stir, TiO
2the mass fraction that nano particle accounts for whole solution is 0.5%, and the mass fraction that NaOH accounts for whole solution is 0.002%.C () adds TiO directly in pure water
2nano particle and PEG1000, and stir, TiO
2the mass fraction that nano particle accounts for whole solution is the mass fraction that 0.5%, PEG1000 accounts for whole solution is 0.3%.D () adds TiO directly in pure water
2nano particle, sodium hydroxide powder and PEG1000, and stir, TiO
2the mass fraction that nano particle accounts for whole solution is 0.5%, and the mass fraction that NaOH accounts for whole solution is the mass fraction that 0.002%, PEG1000 accounts for whole solution is 0.3%.
By TiO prepared by above-mentioned various method
2nano-fluid left standstill after 24 hours, carried out the contrast of absorbance.Because absorbance is directly proportional to granule content in nano-fluid, absorbance is larger, and after leaving standstill, still the nano particle proportion of stable dispersion and suspension is also larger for it, and nano-fluid dispersion is also more stable.
Experimental result as shown in Figure 2.In fig. 2, the absorbance of said method (a) is about 0.75, and the absorbance of method (b) is about 1.75, and the absorbance of method (c) is about 2.6, the absorbance of method (d) is about 3.1, and the absorbance of method of the present invention is about 3.7.Therefore, the TiO for preparing of method of the present invention
2the nano-fluid that nano-fluid obtains compared with additive method, it is dispersed and stability is better, the micromotion of nano particle and strong adsorption capacity more effectively can be utilized to purify air, effectively can also extend the life cycle of nano-fluid.
Claims (7)
1. one kind based on TiO
2the atomizing PM2.5 purifier of nano-fluid, it is characterized in that, this purifier comprises air blast (1), air inlet pipe (2), water pipe (3), water pump (4), spraying purifying vessel (5), the first top cover (6), sprayer (7), the first demist filter (8), communicating pipe (9), rotates purifying vessel (10), bubble cutting machine (11), motor (12), TiO
2nano-fluid (13), blast pipe (14), anion generator (16), muffler (15), the second top cover (17) and the second demist filter (18);
Described air blast (1) is connected to the bottom of spraying purifying vessel (5) by air inlet pipe (2), sprayer (7) is positioned at spraying purifying vessel (5) inner side, water pump (4) is positioned at spraying purifying vessel (5) outside, the water inlet of sprayer (7) is connected with the water side of water pump (4) by water pipe (3), and the water inlet end of water pump (4) is communicated with spraying purifying vessel (5) bottom by water pipe (3); First top cover (6) is fixedly connected on the top of spraying purifying vessel (5), first demist filter (8) is fixedly connected in the inner chamber of spraying purifying vessel (5), and the first demist filter (8) is positioned between the first top cover (6) and sprayer (7);
One end of communicating pipe (9) is arranged in spraying purifying vessel (5), and be positioned at the first demist filter (8) top, the other end of communicating pipe (9), through the first top cover (6), is fixedly connected on the bottom rotating purifying vessel (10); Bubble cutting machine (11) and the second demist filter (18) lay respectively at and rotate in purifying vessel (10), second demist filter (18) is fixedly connected on the inwall of rotation purifying vessel (10), and the second demist filter (18) is positioned at bubble cutting machine (11) top, second top cover (17) is fixedly connected on the top rotating purifying vessel (10), blast pipe (14) arranges in the second top cover (17), and blast pipe (14) is communicated with the inner side and outer side rotating purifying vessel (10); Blast pipe (14) top is provided with muffler (15) and anion generator (16) successively; Motor (12) is positioned at the outside rotating purifying vessel (10), and the power transmission shaft of motor (12) is connected with bubble cutting machine (11) through the sidewall rotating purifying vessel (10);
TiO is equipped with in spraying purifying vessel (5) and rotation purifying vessel (10)
2nano-fluid (13), and the TiO in spraying purifying vessel (5)
2the liquid level of nano-fluid (13) is positioned at sprayer (7) below, rotates the TiO in purifying vessel (10)
2the liquid level of nano-fluid (13) is positioned between bubble cutting machine (11) end face and the second demist filter (18);
Described TiO
2nano-fluid (13) is by anatase titanium dioxide TiO
2spherical nanoparticles, dispersant, pH value regulator and base fluid form, dispersant to be molecular weight be 1000 polyethylene glycol, pH value regulator is NaOH powder, and base fluid is pure water, anatase titanium dioxide TiO
2spherical nanoparticles accounts for TiO
2the mass fraction of nano-fluid (13) is 0.5%, and dispersant accounts for TiO
2the mass fraction of nano-fluid (13) is that 0.3%, NaOH accounts for TiO
2the mass fraction of nano-fluid (13) is 0.002%, and surplus is pure water.
2. according to according to claim 1 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, it is characterized in that, described bubble cutting machine (11) comprises rotating shaft and axially cuts net, rotating shaft level is laid, axially cutting net is fixedly connected in rotating shaft, axially cutting net parallels with rotating shaft, and axially cutting net is formed by the crisscross laying of cutting wire.
3. according to according to claim 2 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, is characterized in that, the diameter of described cutting wire is 0.3-0.5mm, and spacing is 0.5-1mm.
4. according to according to claim 1 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, is characterized in that, described the first top cover (6) and the second top cover (17) are single piece.
5. according to according to claim 1 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, is characterized in that, the wall of described spraying purifying vessel (5) and rotation purifying vessel (10) all adopts printing opacity safety glass to make.
6. according to according to claim 1 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, is characterized in that, described anatase titanium dioxide TiO
2the particle diameter of spherical nanoparticles is 15nm.
7. according to according to claim 1 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, is characterized in that, described TiO
2nano-fluid (13) is prepared from by following steps:
Step 10) first in pure water, add NaOH powder successively, molecular weight be 1000 polyethylene glycol and anatase titanium dioxide TiO2 nano particle, form initial nano-fluid, in initial nano-fluid, the mass fraction of anatase titanium dioxide TiO2 nano particle in initial nano-fluid is 1%, the mass fraction of NaOH in initial nano-fluid is 0.004%, molecular weight be 1000 the mass fraction of polyethylene glycol in initial nano-fluid be 0.6%;
Step 20) utilize constant temperature blender with magnetic force, be under the environment of 20 DEG C in temperature, whipping step 10) initial nano-fluid 120 minutes;
Step 30) be in the ultrasonic water bath of 20 DEG C in temperature, oscillation step 20) initial nano-fluid after process 30 minutes, frequency of oscillation is 45kHz;
Step 40) utilize ultraviolet-uisible spectrophotometer, measuring process 30) absorbance A of initial nano-fluid after vibration
ini;
Step 50) by step 30) vibration after initial nano-fluid leave standstill 24 hours, this initial nano-fluid is divided into the nano-fluid of the non-sedimentation in upper strata and the nano particle of lower floor's sedimentation, is then separated by the nano-fluid of non-for upper strata sedimentation;
Step 60) utilize ultraviolet-uisible spectrophotometer, measuring process 50) absorbance A of nano-fluid separated
af;
Step 70) use pure water dilution step 50) nano-fluid separated, dilution ratio is: the nano-fluid quality separated: the pure water quality=A added
ini: (2A
af-A
ini), thus acquisition mass fraction is the TiO of 0.5%
2nano-fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212274.7A CN103990344B (en) | 2014-05-19 | 2014-05-19 | Based on TiO 2the atomizing PM2.5 purifier of nano-fluid |
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|---|---|---|---|
| CN201410212274.7A CN103990344B (en) | 2014-05-19 | 2014-05-19 | Based on TiO 2the atomizing PM2.5 purifier of nano-fluid |
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| Publication Number | Publication Date |
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| CN103990344A CN103990344A (en) | 2014-08-20 |
| CN103990344B true CN103990344B (en) | 2016-03-16 |
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| CN104607023B (en) * | 2014-12-22 | 2016-08-24 | 浙江大学 | A kind of strengthening CO2the preparation method and application of the nano-fluid of absorbent gas-liquid mass transfer |
| CN107537253A (en) * | 2017-09-07 | 2018-01-05 | 无锡龙盈环保科技有限公司 | Air filtering purifier |
| CN108388326B (en) * | 2018-01-30 | 2019-02-01 | 中国矿业大学 | A kind of CPU heat radiation cooling system based on nano-fluid |
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| JP5082950B2 (en) * | 2008-03-13 | 2012-11-28 | 住友化学株式会社 | Method for decomposing volatile aromatic compounds |
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| CN1142199A (en) * | 1994-11-08 | 1997-02-05 | 通用电气公司 | Flue gas scrubbing apparatus |
| CN1699181A (en) * | 2005-04-30 | 2005-11-23 | 东南大学 | Process for preparing anatase type TiO2 sol |
| NL1033674C2 (en) * | 2007-04-11 | 2008-10-14 | Matrona Maria Louisa Franssen | Waste gas cleaning system with reservoir for passing gases through, includes device for spaying liquid into space above reservoir |
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