CN103990344A - Spraying type PM (Particulate Matter) 2.5 purifying device based on TiO2 nano fluid - Google Patents
Spraying type PM (Particulate Matter) 2.5 purifying device based on TiO2 nano fluid Download PDFInfo
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- CN103990344A CN103990344A CN201410212274.7A CN201410212274A CN103990344A CN 103990344 A CN103990344 A CN 103990344A CN 201410212274 A CN201410212274 A CN 201410212274A CN 103990344 A CN103990344 A CN 103990344A
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Abstract
The invention discloses a spraying type PM (Particulate Matter) 2.5 purifying device based on a TiO2 nano fluid. The spraying type PM2.5 purifying device comprises an air blower, a gas inlet pipe, a water pipe, a water pump, a spraying purifying container, a first top cover, a sprayer, a first demisting separation net, a communicating pipe, a rotary purifying container, a bubble cutting machine, a motor, a TiO2 nano fluid, an exhaust pipe, a negative ion generator, a silencer, a second top cover and a second demisting separation net, wherein the sprayer is located at the inner side of the spraying purifying container, the first demisting separation net is fixedly connected into the spraying purifying container, the bubble cutting machine and the second demisting separation net are located in the rotary purifying container, the exhaust pipe is arranged in the second top cover, the exhaust pipe is communicated with the inner side and the outer side of a shearing purifier, a transmission shaft of the motor penetrates through the side wall of the rotary purifying container and is connected with the bubble cutting machine, and the spraying purifying container and the rotary purifying container are internally filled with the TiO2 nano fluid. The purifying device is capable of effectively adsorbing PM2.5 in air.
Description
Technical field
The invention belongs to air purifying process field, 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 its content concn in air is higher, just represents that air pollution is more serious.Although PM2.5 is the little component of content in earth atmosphere composition, 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 subsidiary poisonous and harmful substances (for example, heavy metal, microorganism etc.), and time of staying in atmosphere is long, fed distance is far away, thereby 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 that enters respiratory tract is darker.The particle of 10 μ m diameters is deposited on the upper respiratory tract conventionally, be deep into bronchiole and alveolar below 2 μ m.PM2.5 enters human body after alveolar, directly affects the ventilatory function of lung, makes body easily be in anaerobic condition.
The main counter-measure of PM2.5 is mainly divided into following three kinds at present: 1) filtration method, comprise air-conditioning, humidifier, air freshener etc., and advantage is obviously to reduce the concentration of PM2.5, shortcoming is that filter membrane need to clean or change.2) water absorption method.Ultrasonic atomizer, indoor cascade, pond, fish jar etc., can absorb airborne hydrophily PM2.5, and shortcoming is to increase humidity, and hydrophobicity PM2.5 can not effectively remove.3) plant absorption process.Plant leaf blade has larger surface area, can absorb pernicious gas and absorption PM2.5, and advantage is to produce favourable gas, and shortcoming is that absorption efficiency is low, and some plant can produce pernicious gas.Traditional air purifier is to utilize solid (state) grid film (applying different grid film/cloth), takes the methods such as " stopping ", " isolation ", " absorption ", filters out airborne fine particle, reaches the object of " purification " air.In fact this grid film/cloth is only effective to the particle of diameter >3.0 μ m, can be by its " filtration resistance " outside, and PM2.5 particle filtering to diameter≤2.5 μ m.Existing advanced efficient purifier film is HEPA/ULPA combination solid film (borosilicate fibrous paper dress film) in the world now, but PM2.5 fine grained that also can only filtration resistance part, to the particle filtration resistance weak effect below PM2.0, especially its function damped cycle is very fast, generally can only disposablely use, thereby make this filter be difficult to extensive use, general favour masses.Can find out, existing puckery north purifies and all has this certain defect for airborne PM2.5, and Low-cost, efficient PM2.5 purifier are very significant 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, effectively the PM2.5 particle 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 spraying purifying vessel inner side, water pump is positioned at spraying purifying vessel outside, 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 spraying purifying vessel bottom by water pipe; The 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 the first demist filter top, and the other end of communicating pipe, through the first top cover, is fixedly connected on the bottom of rotation purifying vessel; Bubble cutting machine and the second demist filter lay respectively in rotation purifying vessel, the second demist filter is fixedly connected on the inwall of rotation purifying vessel, and the second demist filter is positioned at bubble cutting machine top, the second top cover is fixedly connected on the top of rotation purifying vessel, blast pipe arranges in the second top cover, and blast pipe is communicated with inner side and the outside of shearing clarifier; Blast pipe top is provided with muffler and anion generator successively; Motor is positioned at the outside of rotation purifying vessel, and the power transmission shaft of motor is connected with bubble cutting machine through the sidewall of rotation purifying vessel; In spraying purifying vessel and rotation purifying vessel, be equipped with TiO
2nano-fluid, and the TiO spraying in purifying vessel
2the liquid level of nano-fluid is positioned at sprayer below, the TiO in rotation 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 axial cutting net, and rotating shaft level is laid, and axially cuts net and is fixedly connected in rotating shaft, axially cuts net and parallels with rotating shaft, axially cuts net and 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 conditioning agent and base fluid composition, dispersant is that molecular weight is 1000 polyethylene glycol, and pH value conditioning agent 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) is first to adding successively polyethylene glycol and the anatase titanium dioxide TiO2 nano particle that NaOH powder, molecular weight are 1000 in pure water, 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%, and the mass fraction of the polyethylene glycol that molecular weight is 1000 in initial nano-fluid 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) in temperature is the ultrasonic water bath of 20 DEG C, vibration step 20) initial nano-fluid after treatment 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 not nano-fluid of sedimentation and the nano particle of lower floor's sedimentation of upper strata, then by upper strata not the nano-fluid of sedimentation separate;
Step 60) utilize ultraviolet-uisible spectrophotometer, measuring process 50) absorbance A of the nano-fluid separated
af;
Step 70) use pure water dilution step 50) nano-fluid separated, dilution ratio is: the nano-fluid quality of separating: the pure water quality=A adding
ini: (2A
af-A
ini), thereby obtain the TiO that mass fraction is 0.5%
2nano-fluid.
beneficial effect:compared with prior art, the present invention has following beneficial effect:
(1) the effective PM2.5 particle in absorbed air.In the present invention, TiO
2solid nano particle belongs to hydrophobic solid particle, in the fine dispersion of energy of PEG1000 surfactant and alkaline solution.The present invention can make airborne PM2.5 at TiO
2under the strong suction-operated of nano particle, " molten ", in alkaline solution, has good catharsis for the PM2.5 of hydrophobicity especially together.
(2) TiO of the present invention
2nano-fluid is by anatase titanium dioxide TiO
2spherical nanoparticles, dispersant, pH value conditioning agent and base fluid composition.By adding PEG1000 dispersant and regulating pH value, utilize the more Investigation of stabilized dispersion of nano of nano-fluid with respect to micron suspension, make TiO
2nano-fluid scavenging solution energy stable existence, is difficult for reuniting, and can use for a long time.NaOH in solution can play and promote TiO2 nano particle stable dispersion, and can effectively remove the particle that comprises the acidic molecular groups such as carbon dioxide, formaldehyde, hydrogen sulfide in air.Meanwhile, the wall of spraying purifying vessel of the present invention and rotation purifying vessel all adopts printing opacity safety glass system, can effectively utilize TiO
2this strong sterilization and air purification effect possessing under photocatalysis of nano particle.And TiO
2nano-fluid is white in color, and uses for a long time and can become muddy after absorbed air particle and impurity, can be intuitively, effectively to TiO
2nano-fluid is changed.
(3) the present invention utilize the small-size effect of nano particle in nano-fluid and in liquid strong diffusivity, make only to need that seldom the nano particle of amount just can even, stable being distributed in whole liquid.PM2.5 is very small for macroscopic view, but for nano particle, is but very big particle.The present invention is purified and is sheared purification process and makes liquid and TiO wherein by liquid film
2nano particle fully contacts with airborne PM2.5, and hydrophily PM2.5 is dissolved in solution, and hydrophobicity PM2.5 is owing to having adsorbed the TiO of same hydrophobicity
2nano particle (TiO
2nano particle due to the effect of PEG1000 dispersant can fine dispersion and alkaline solution in), at TiO
2under the drive of nano particle, make hydrophobicity PM2.5 also together " molten " in alkaline solution.
(4) the present invention has set nano-fluid sprayer in spraying purifying vessel, makes TiO
2nano-fluid atomization, fully contacts nano-fluid with air to be clean, nano-fluid drop is the particle in absorbed air effectively, and TiO
2metal oxide density is larger, adds the first demist filter at spraying purifying vessel top, makes in absorbed air, after particle, to be effectively deposited in liquid, and to utilize water pump to recycle.
(5) the present invention sets bubble cutting machine in rotation purifying vessel, bubble is more effectively cut into less, and in better " shower " and nano-fluid.Motor rotation makes nano particle carry out rotation at a high speed, and the ability that makes 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) the present invention has adopted spraying purifying vessel and rotation purifying vessel two-step purification, the particle that can make the relatively large particle of volume and comprise 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 mainly purify by the nano-fluid in rotation purifying vessel.Because nano-fluid use amount in spraying purifying vessel is relatively less, the particle that can effectively avoid larger particle and comprise 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 that extends the interior nano-fluid of rotation purifying vessel of large usage quantity, only need with a small amount of nano-fluid changing in spraying purifying vessel.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 be test provided by the invention than absorbance curve map.
Figure 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, rotation purifying vessel 10, bubble cutting machine 11, motor 12, TiO
2nano-fluid 13, blast pipe 14, anion generator 15, muffler 16, the 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, the first top cover 6, sprayer 7, the first demist filter 8, communicating pipe 9, rotation purifying vessel 10, bubble cutting machine 11, motor 12, TiO
2(titanium dioxide) nano-fluid 13, blast pipe 14, anion generator 15, muffler 16, the 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 spraying purifying vessel 5 inner sides.Water pump 4 is positioned at spraying purifying vessel 5 outsides.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 spraying purifying vessel 5 bottoms by water pipe 3.The first top cover 6 is fixedly connected on the top of spraying purifying vessel 5.The 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 the first demist filter 8 tops.The other end of communicating pipe 9, through the first top cover 6, is fixedly connected on the bottom of rotation purifying vessel 10.Bubble cutting machine 11 and the second demist filter 18 lay respectively in rotation purifying vessel 10.The 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 tops.The second top cover 17 is fixedly connected on the top of rotation purifying vessel 10.Blast pipe 14 arranges in the second top cover 17, and blast pipe 14 is communicated with inner side and the outside of shearing clarifier 11.Blast pipe 14 tops are provided with muffler 15 and anion generator 16 successively.Muffler 15 is between blast pipe 14 and anion generator 16.Motor 12 is positioned at the outside of rotation purifying vessel 10, and the power transmission shaft of motor 12 is connected with bubble cutting machine 11 through the sidewall of rotation purifying vessel 10.In spraying purifying vessel 5 and rotation purifying vessel 10, be equipped with TiO
2nano-fluid 13, and the TiO spraying in purifying vessel 5
2the liquid level of nano-fluid 13 is positioned at sprayer 7 belows.TiO in rotation purifying vessel 10
2the liquid level of nano-fluid 13 is between bubble cutting machine 11 end faces and the second demist filter 18.
Further, described bubble cutting machine 11 comprises rotating shaft and axial cutting net, and rotating shaft level is laid, and axially cuts net and is fixedly connected in rotating shaft, axially cuts net and parallels with rotating shaft, axially cuts net and 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.The wall of purifying vessel 5 and rotation purifying vessel 10 of spraying in the present invention all adopts the safety glass material of printing opacity, can effectively utilize TiO
2photo-catalyst effect, effectively increase pollutants in air as the decomposition effect of 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 spraying purifying vessel 5 bottoms by air blast 1 by air inlet pipe 2, through the TiO that is positioned at spraying purifying vessel 5 bottoms
2after nano-fluid, with the TiO of spray purifier 2 inner atomizations
2nano-fluid drop fully contacts, and makes TiO
2nano-fluid fully contacts with air to be clean, makes TiO
2nano-fluid drop is the particle in absorbed air effectively, and TiO
2metal oxide density is larger, adds the first demist filter 13 at spraying purifying vessel 5 atomization tops, makes after particle, can effectively be deposited in liquid in absorbed air, and utilizes water pump 4 to recycle.
Under the purification of spraying purifying vessel 5, the relatively large particle of volume and the particle that comprises 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 well " molten " in the TiO of spraying purifying vessel 5
2in nano-fluid.Meanwhile, pollutants in air as nitrogen oxide, aromatic hydrocarbons and aldehydes etc. also can be at TiO
2under the photocatalysis of nano-fluid, decompose and purify, very tiny particle and hydrophobicity particle mainly purify by the nano-fluid in rotation purifying vessel 10.
Gas by the purifying vessel 5 of spraying out after, by enter communicating pipe 9 rotation purifying vessel 10 in.Under the dissection of rotation purifying vessel 10 interior bubble cutting machine 11, 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, and 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 solid that volume is very large, TiO
2nano particle is adsorbing solid particle, and utilizes TiO
2hydrophilic interaction after nano particle absorption dispersant, make PM2.5 together " molten " in alkaline base fluid.
Air after spraying purifying vessel 5 and rotation purifying vessel 10 two-step purifications enters in blast pipe 14, and flows through after anion generator 15 and muffler 16 after the second demist filter 18, is discharged to outside of containers, completes 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 in order to overcome existing air cleaning facility, of the present invention based on TiO
2the atomizing PM2.5 purifier of nano-fluid, utilizes the more stable dispersion performance of nano-fluid with respect to micron suspension, makes TiO
2nano-fluid scavenging solution energy stable existence, is difficult for reuniting, and can use for a long time.Utilize TiO
2in nano-fluid the small-size effect of nano particle and in liquid strong diffusivity, make only to need that seldom the nano particle of 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 conditioning agent and base fluid composition, dispersant is that molecular weight is 1000 polyethylene glycol (PEG1000), and pH value conditioning agent 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:
First step 10) adds successively NaOH powder, PEG1000 and anatase titanium dioxide TiO2 nano particle in pure water, form initial nano-fluid, in initial nano-fluid, the mass fraction of anatase titanium dioxide TiO2 nano particle is 1%, NaOH mass fraction is that 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) in temperature is the ultrasonic water bath of 20 DEG C, vibration step 20) initial nano-fluid after treatment 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 not nano-fluid of sedimentation and the nano particle of lower floor's sedimentation of upper strata, then by upper strata not the nano-fluid of sedimentation separate;
Step 60) utilize ultraviolet-uisible spectrophotometer, measuring process 50) absorbance A of the nano-fluid separated
af;
Step 70) use pure water dilution step 50) nano-fluid separated, dilution ratio is: the nano-fluid quality of separating: the pure water quality=A adding
ini: (2A
af-A
ini), thereby obtain the TiO that mass fraction is 0.5%
2nano-fluid.
The TiO preparing by above step
2nano-fluid possesses better dispersion stabilization.TiO prepared by said method
2nano-fluid, and the TiO for preparing of existing method
2nano-fluid carries out dispersion stabilization comparison.Existing method comprises: (a) directly in pure water, add TiO
2nano particle, and stir, TiO
2the mass fraction that nano particle accounts for whole solution is 0.5%.(b) directly in pure water, add TiO
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) directly in pure water, add TiO
2nano particle and PEG1000, and stir, TiO
2the mass fraction that nano particle accounts for whole solution is that the mass fraction that 0.5%, PEG1000 accounts for whole solution is 0.3%.(d) directly in pure water, add TiO
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 that the mass fraction that 0.002%, PEG1000 accounts for whole solution is 0.3%.
TiO prepared by above-mentioned the whole bag of tricks
2nano-fluid left standstill after 24 hours, carried out the contrast of absorbance.Because absorbance is to be 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 just larger for it, and nano-fluid disperses also just 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, and 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 that, prepared by method of the present invention
2the nano-fluid that nano-fluid obtains compared with additive method, it is dispersed and stability is better, can more effectively utilize the micromotion of nano particle and strong adsorption capacity to purify air, and can also effectively extend the life cycle of nano-fluid.
Claims (8)
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), rotation purifying vessel (10), bubble cutting machine (11), motor (12), TiO
2nano-fluid (13), blast pipe (14), anion generator (15), muffler (16), 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); The first top cover (6) is fixedly connected on the top of spraying purifying vessel (5), and the 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 is positioned at the first demist filter (8) top, and the other end of communicating pipe (9), through the first top cover (6), is fixedly connected on the bottom of rotation purifying vessel (10); Bubble cutting machine (11) and the second demist filter (18) lay respectively in rotation purifying vessel (10), the 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, the second top cover (17) is fixedly connected on the top of rotation purifying vessel (10), blast pipe (14) arranges in the second top cover (17), and blast pipe (14) is communicated with inner side and the outside of shearing clarifier (11); Blast pipe (14) top is provided with muffler (15) and anion generator (16) successively; Motor (12) is positioned at the outside of rotation purifying vessel (10), and the power transmission shaft of motor (12) is connected with bubble cutting machine (11) through the sidewall of rotation purifying vessel (10);
In spraying purifying vessel (5) and rotation purifying vessel (10), be equipped with TiO
2nano-fluid (13), and the TiO spraying in purifying vessel (5)
2the liquid level of nano-fluid (13) is positioned at sprayer (7) below, the TiO in rotation 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).
According to claimed in 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, axially cuts net and is formed by the crisscross laying of cutting wire.
According to claimed in 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.
According to claimed in 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.
According to claimed in 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.
According to claimed in claim 1 based on TiO
2the atomizing PM2.5 purifier of nano-fluid, is characterized in that, described TiO
2nano-fluid (13) is by anatase titanium dioxide TiO
2spherical nanoparticles, dispersant, pH value conditioning agent and base fluid composition, dispersant is that molecular weight is 1000 polyethylene glycol, and pH value conditioning agent 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.
According to claimed in claim 6 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.
According to claimed in claim 6 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) is first to adding successively polyethylene glycol and the anatase titanium dioxide TiO2 nano particle that NaOH powder, molecular weight are 1000 in pure water, 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%, and the mass fraction of the polyethylene glycol that molecular weight is 1000 in initial nano-fluid 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) in temperature is the ultrasonic water bath of 20 DEG C, vibration step 20) initial nano-fluid after treatment 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 not nano-fluid of sedimentation and the nano particle of lower floor's sedimentation of upper strata, then by upper strata not the nano-fluid of sedimentation separate;
Step 60) utilize ultraviolet-uisible spectrophotometer, measuring process 50) absorbance A of the nano-fluid separated
af;
Step 70) use pure water dilution step 50) nano-fluid separated, dilution ratio is: the nano-fluid quality of separating: the pure water quality=A adding
ini: (2A
af-A
ini), thereby obtain the TiO that mass fraction is 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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| CN104607023A (en) * | 2014-12-22 | 2015-05-13 | 浙江大学 | A preparing method of a nanofluid reinforcing gas-liquid mass transfer of a CO2 absorbent and applications of the nanofluid |
| CN107537253A (en) * | 2017-09-07 | 2018-01-05 | 无锡龙盈环保科技有限公司 | Air filtering purifier |
| CN108388326A (en) * | 2018-01-30 | 2018-08-10 | 中国矿业大学 | A kind of CPU heat radiation cooling systems based on nano-fluid |
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| CN103990344B (en) | 2016-03-16 |
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