CN107952316A - Micronic dust remover without strainer - Google Patents

Micronic dust remover without strainer Download PDF

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Publication number
CN107952316A
CN107952316A CN201710796501.9A CN201710796501A CN107952316A CN 107952316 A CN107952316 A CN 107952316A CN 201710796501 A CN201710796501 A CN 201710796501A CN 107952316 A CN107952316 A CN 107952316A
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msub
mrow
mfrac
msup
gas
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康演洙
申有真
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Ausi Wei
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Ausi Wei
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/10—Venturi scrubbers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • A61L9/145—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes air-liquid contact processes, e.g. scrubbing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention discloses a kind of micronic dust remover of no strainer.It is related to without using strainer and uses the micronic dust remover without strainer of dust in water captured gas, including：Air supplying part, it is discharged after gas is sucked；Venturi pipe portion, it possesses shrinkage type inflow part, throat and the diffused outflow portion that the gas discharged by the air supplying part passes through；Charging portion, it possesses the outlet of the storage unit of storage cleaning solution and discharge gas, and the gas flowed out by the venturi pipe portion is drained into the outlet；Ejection section, it sprays the storage unit cleaning liquid inside into the venturi pipe portion；Demisting portion, it is located inside the charging portion, and traps the droplet from the gas of outlet outflow.The storage unit is recovered to by the droplet of venturi pipe portion generation and in the droplet of demisting portion trapping.

Description

Micronic dust remover without strainer
Technical field
The present invention relates to the micronic dust remover of no strainer, is specifically, without using strainer, utilizes dust in water captured gas Micronic dust remover without strainer.
Background technology
Air purifier becomes fresh sky commonly used in removing the polluter i.e. dust contained in air, by pollution air Gas, its air cleaner mode include filtering type, ionic formula and electric precipitation formula.
Ionic formula air purifier is high voltage is flowed into the electrode with a certain distance from by the way of, to aerial release Ion, makes ion adhere on aerial particulate, particulate is attracted and be eliminated by just (+) pole dust means.It is above-mentioned Ionic formula air purifier there is little power consumption, quiet.But ionic formula air purifier does not have blowing fan substantially, for by sky Gas purifies longer to the time needed for certain level, and better purifying space is more spacious, and clean-up effect is lower.Especially, ionic formula air is net Ozone can be produced by changing device, and caused ion is high concentration, as the concentration of ozone degree a reference value up to 0.05ppm can have human body Evil.
Electric precipitation formula air purifier and ionic formula equally use electrical discharge principle, pass through the strong dust of dust collecting capability Plate removes the dust in contaminated air.Electric precipitation formula air purifier is different from above-mentioned ionic formula air purifier, its Using blowing fan, therefore compared with ionic formula air purifier, removing dust effect is good, but dust removal efficiency is less than using high The air purifier of the filters such as air filter (HEPA) is imitated, fuselage interior is easily dirty, need to periodically be cleaned.
It is at present filtering type air purifier as the air purifier of mainstream, after it is using blowing fan suction air, uses Filter screen purifies, and then discharges purification air again.This filtering type air purifier non-woven fabrics such as highly effective air strainer Strainer filtering dust, smell are removed using active carbon adsorption.Filtering type air purifier need to replace strainer by some cycles, Not only bother, can also increase cost for purchase strainer.
【Prior art literature】
【Patent document】
Ebrean Registered Patent publication the 10-1602112nd.
The content of the invention
【Technical problem】
It is an object of the present invention in order to solve the problems, such as some above-mentioned, there is provided a kind of micronic dust remover of no strainer, institute The micronic dust remover for stating no strainer is to utilize venturi scrubber (Venturi Scrubber) principle for removing dust with water to catch Collect dust, so as to improve dust removal efficiency in gas.
It is an object of the invention to provide a kind of micronic dust remover of no strainer, the micronic dust remover of the no strainer is stream It is strong to the detergent power of tackness dust when the gas humidity and high temperature that enter, dust and smell can be removed at the same time.
It is an object of the invention to provide a kind of micronic dust remover of no strainer, the micronic dust remover of the no strainer due to Dust will not be deposited in inside machine, and gas circuit will not block, and can be saved as the internal required expense of cleaning.
【Technical solution】
To achieve the above object, the micronic dust remover of no strainer according to an embodiment of the invention includes：Air supplying part, It is discharged after gas is sucked；Venturi pipe portion, it possess the shrinkage type inflow part that the gas discharged by the air supplying part passes through, Throat and diffused outflow portion；Charging portion, it possesses the outlet of the storage unit of storage cleaning solution and discharge gas, and will be by The gas of the venturi pipe portion outflow drains into the outlet；Ejection section, it is by the storage unit cleaning liquid inside to the text Sprayed in venturi portion；Demisting portion, it is located inside the charging portion, and traps the water from the gas of outlet outflow Pearl；Recycled by the droplet of venturi pipe portion generation and in the droplet of demisting portion trapping by the storage unit.
The micronic dust remover further includes：Control the air output of the air supplying part and the control of the ejection section emitted dose Portion.
Wherein, the charging portion further includes：The flow velocity adjustment part of internal gas translational speed is adjusted, the control unit can be with The flow velocity adjustment part is controlled, and then the speed that gas is flowed to the outlet can be adjusted.
The control unit can control the flow velocity adjustment part, make the gas velocity to outlet flowing in 0.8m/s Above with below 1.2m/s.
The length of the diffused outflow portion is below more than 3.5 times of the throat diameter and 4.5 times.
The control unit determines the air output of the air supplying part and the spray according to following mathematical formulae 1 to mathematical formulae 3 The emitted dose in portion is penetrated, makes the i.e. following mathematical formulae 4 of clearance rate of the powder dust particle from the gas that the venturi pipe portion passes through Efficiency is up to less than more than 0.985 and 0.995.
[mathematical formulae 1]
Wherein, QLIt is the emitted dose of the ejection section, QGIt is the air output of the air supplying part, VGIt is to be flowed by the throat Dynamic gas flow rate, ρLIt is the density of the cleaning solution of ejection section injection, ddIt is the cleaning solution droplet of the ejection section injection Average diameter, μ are the gas viscositys for flowing into the venturi pipe portion, and f is experimental constant.
[mathematical formulae 2]
Wherein, dpIt is the diameter of powder dust particle in the gas for flow into the venturi pipe portion, VPIt is to flow into the Venturi tube The speed of powder dust particle, ρ in the gas in portionWIt is the density of water.
[mathematical formulae 3]
Wherein, σ is the surface tension of the cleaning solution droplet of ejection section injection, μLIt is the cleaning of the ejection section injection The viscosity of liquid.
[mathematical formulae 4]
Efficiency=1-Ptd
The throat length is determined based on following mathematical expression 5 to mathematical expression 8, the pressure loss in throat is existed 500mmH2Below O.
[mathematical formulae 5]
Wherein, Δ P is the pressure loss.
[mathematical formulae 6]
Wherein, ltIt is the length of the throat.
[mathematical formulae 7]
[mathematical formulae 8]
Wherein, ρGIt is the gas density passed through from the throat, μGIt is the gas viscosity passed through from the throat.
The control unit determines the air output of the air supplying part based on following mathematical formulae 13.
[mathematical formulae 13]
Wherein, Q is the air output of the air supplying part, and D is the constant proportional to polluter growing amount hourly, just Begin mole molal quantity for being polluter in air when fluid contaminants matter is evaporated up to saturation state in better purifying space (mol), this mole is the molal quantity of pollutants in air matter corresponding with the desired value to be reached by air purification, t be for Reach the time needed for the desired value.
The emitted dose of the air output of the air supplying part and the ejection section is based on the mathematical formulae 1 to mathematical formulae 3 Determine, and make the efficiency of the i.e. following mathematical formulae 4 of clearance rate of the powder dust particle from the gas that the venturi pipe portion passes through to Up to less than more than 0.985 and 0.995.
[mathematical formulae 1]
Wherein, QLIt is the emitted dose of the ejection section, QGIt is the air output of the air supplying part, VGIt is to be flowed by the throat Dynamic gas flow rate, ρLIt is the density of the cleaning solution of ejection section injection, ddIt is the cleaning solution droplet of the ejection section injection Average diameter, μ are the gas viscositys for flowing into the venturi pipe portion, and f is experimental constant.
[mathematical formulae 2]
Wherein, dpIt is the diameter of powder dust particle in the gas for flow into the venturi pipe portion, VPIt is to flow into the Venturi tube The speed of powder dust particle, ρ in the gas in portionWIt is the density of water.
[mathematical formulae 3]
Wherein, σ is the surface tension of the cleaning solution droplet of ejection section injection, μLIt is the cleaning of the ejection section injection The viscosity of liquid.
[mathematical formulae 4]
Efficiency=1-Ptd
The throat length is determined based on following mathematical formulae 5 to mathematical formulae 8, and makes the pressure loss of the throat Less than 500mmH2O。
[mathematical formulae 5]
Wherein, Δ P is the pressure loss.
[mathematical formulae 6]
Wherein, ltIt is the length of the throat.
[mathematical formulae 7]
[mathematical formulae 8]
Wherein, ρGIt is the gas density passed through from the throat, μGIt is the gas viscosity passed through from the throat.
The air output of the air supplying part is determined according to following mathematical formulae 13.
[mathematical formulae 13]
Wherein, Q is the air output of the air supplying part, and D is the constant proportional to polluter growing amount hourly, just Begin mole molal quantity for being polluter in air when fluid contaminants matter is evaporated up to saturation state in better purifying space (mol), this mole is the molal quantity of pollutants in air matter corresponding with the desired value to be reached by air purification, t be for Reach the time needed for the desired value.
【Beneficial effect】
According to the present invention, its advantage is, can effectively remove dust and stink in contaminated air, not get dirty Contaminating the temperature and humidity of air influences；
Moreover, according to the present invention, trapping dust is without the use of strainer, can save and put into maintenance cost because of airway blockage With being used in and replace the related maintenance costs such as strainer, cleaning be internal.
Brief description of the drawings
Fig. 1 is the block diagram for the micronic dust remover without strainer for showing one embodiment of the invention；
Fig. 2 is the structure chart for the micronic dust remover without strainer for showing one embodiment of the invention；
Fig. 3 is the attached drawing in Venturi tube portion in the micronic dust remover without strainer for show one embodiment of the invention；
Fig. 4 is the chart for the action of the micronic dust remover without strainer for showing one embodiment of the invention；
Fig. 5 is to be shown according to the gas with various speed in throat's flowing with the increasing of the cleaning solution flow sprayed by ejection section It is added in the chart of the change occurred in interfacial area；
Fig. 6 is to be shown according to the different flow of the cleaning solution by ejection section injection as the gas velocity flowed in throat increases The chart for the change for adding and occurring in interfacial area；
Fig. 7 is to be shown according to the friction speed of the gas in throat's flowing with the increase of liquid gas and in interfacial area The chart of the change of generation.
Symbol description
100：Air supplying part；
200：Venturi pipe portion；
300：Gas tank portion；
400：Ejection section；
500：Control unit.
Embodiment
Below in conjunction with attached drawing, the preferred embodiment of the present invention is illustrated, it is clear that described embodiment can be by Diversely change, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art are not making wound All other embodiments obtained under the premise of the property made work, belong to the scope of protection of the invention.In figure each Components Shape and Size etc. is in order to more describe clearly exaggerate, and same symbol refers to same component in figure.
The implication of term described in the application part is explained as follows.
The terms such as " first ", " second " are used to other components mutually distinguish a component, but not to the present invention's Claim is limited.For example, first component may be named as second component, similarly, second component can be named For first component.
When some part " is connected to " other components described in overall manual, not only includes " being directly connected to ", can also Including passing through other elements " with being electrically connected " among it.When describing some part " comprising " or " possessing " some component, do not having On the premise of especially opposite narration, represent it is not to exclude other components, but can also include or possess other components.
Fig. 1 is the block diagram for the micronic dust remover without strainer for showing one embodiment of the invention, and Fig. 2 is the display present invention one The structure chart of the micronic dust remover without strainer of embodiment, Fig. 3 are that the micronic dust without strainer for showing one embodiment of the invention is removed The attached drawing in Venturi tube portion 200 in device.
From the point of view of from Fig. 1 to Fig. 3, the micronic dust remover without strainer of one embodiment of the invention includes：Air supplying part 100, Wen Qiu In pipe portion 200, charging portion 300, ejection section 400 and control unit 500.
The gas that air supplying part 100 will be removed in the space of pollution sucks G1 heel row G2 to the inside of venturi pipe portion 200. Air supplying part 100 can be arranged on the front end of the shrinkage type inflow part 210 of Venturi tube 200, but can also be arranged on shrinkage type The inside of inflow part 210, and not limited to this.Air supplying part 100 can possess the change that air supply velocity is correspondingly adjusted with gas flow rate Frequency motor (not shown).Variable-frequency motor controls the rotation number of blowing fan in air supplying part 100 according to the control signal of control unit 500, So as to adjust air supply velocity, but not limited to this.In addition, air supplying part 100 can also no control unit 500 control in the case of, Sucked with the air supply velocity determined according to pollution cleanup efficiency best practicable technology and discharge gas.
Venturi pipe portion 200 possesses：The gas discharged by air supplying part 100 flows into the shrinkage type inflow part passed through (Converging section) 210, larynx (Throat) portion 220 and diffused outflow portion (Diverging section) 230, The gas passed through is flowed out into G3 to charging portion 300.Venturi pipe portion 200 can be fabricated to a variety of section shapes, such as circular, long It is square, square etc., the preferably circle with set diameter, but be not limited to this.The wherein length of shrinkage type inflow part 210 Degree can be determined according to the scale of installation space, and in order to obtain Venturi effect, the length of throat 220 is reducible to reach throat 220 2.5 times to 3.5 times of diameter, preferably from about 3 times, but be not limited to this.
And the length of diffused outflow portion 230 about reaches 3.5 times to 4.5 times of 220 diameter of throat, preferably reaches 4 Times.Section have given area throat 220 by fast speed gas on the move gradually from the area of section increase in the form of During, its translational speed is reduced diffused outflow portion 230, and recovers pressure.At this time in order to will be flowed out by diffused The stress level during pressure recovery for the gas that portion 230 discharges to inflow venturi 200 inside of pipe portion, makes diffused outflow portion 230 have above-mentioned distance than more preferably.
Inflation (Plenum) portion 300 possesses the storage unit 310 of the cleaning solutions such as storage water and the outlet of discharge G4 gases 320, and trigger gas to flow, make the gas flow outlet 320 flowed out from venturi pipe portion 200.Wherein gas tank portion 300 possesses For adjusting the flow velocity adjustment part 350 (such as Fig. 1) of internal gas translational speed, flow velocity adjustment part 350 can be by control unit 500 Vacuum pump or whirlwind (Cyclone) separator of control, but be not limited to this.Flow to the outlet 320 inside charging portion 300 Gas translational speed can be about in more than 0.8m/s and in below 1.2m/s, preferably can be about in more than 0.8m/s and in 1m/s Hereinafter, and by translational speed control in set velocity interval, so as to neither reduce air purification efficiency, and can make in gas Droplet is sufficiently separated.On the other hand, charging portion 300 can use the structure that the optimum travel rate degree of internal gas is fixed, this When, can not be by the way of flow velocity adjustment part 350 be controlled by control unit 500.
For the adjustment and replacement of the amount of 310 cleaning liquid inside of storage unit, it is preferable that set in the shell lower end of storage unit 310 Put drain valve (Drain valve) 311.
Wherein in order to keep the leakproofness between the gentle case portion 300 of venturi pipe portion 200, gasket (Gasket) can be set 340。
Demisting (Demister) portion 330 is arranged in gas tank portion 300, for collecting from the gas that outlet 320 flows out After droplet, the droplet of collection is set to fall in storage unit 310.Gas flow path of the demisting portion 330 preferably to being flowed out from outlet 320 It is vertically arranged, prevents the stuff and other stuff discharge of the less droplet of size and dust, only discharge purification gas.
Ejection section 400 sprays the cleaning solution L of storage unit 310 to venturi pipe portion 200.Ejection section 400 includes：Become The flow channel tube 410 of cleaning solution feed lines；The pump 420 that cleaning solution in storage unit 310 is drawn；To flowing into Venturi tube portion Multiple nozzles 430 of 200 gas injection cleaning solution.Especially gas of the ejection section 400 by nozzle 430 to inflow throat 220 Jet cleaning liquid.Ejection section 400 can possess for adjusting the regulating valve of cleaning solution emitted dose (not shown), but not limited to this.
Nozzle bore can be formed on multiple nozzles 430,120 times to 180 times of its size about powder dust particle diameter, preferably About 150 times of ground.The particle diameter of the cleaning solution sprayed by multiple nozzles 430 is smaller, and the sum of surface area of cleaning solution droplet is bigger, into And powder dust particle is effectively removed, but consider nozzle driving efficiency, 150 times of cleaning solution droplet size about dust size, then clearly Except efficient, energy consumption can also be saved.
The gas of venturi pipe portion 200 is flowed into herein and under the action of the cleaning solution that ejection section 400 is sprayed, generation trapping The droplet of dust, the droplet of generation are recovered to storage unit 310 in a manner of landing etc..
Illustrate the generating principle of the droplet of trapping dust in venturi pipe portion 200 below.
The so-called trapping by inertial collision (Impaction) be the powder dust particle being contained in gas close to after droplet with Droplet collides and is separated from gas.It is by the trapping for spreading (Diffusion), no matter the flowing of gas, about 0.1 μm Following fine dust collide droplet in irregular Blang (Brown) movement and separated from gas.It is so-called to pass through interception (Interception) trapping is, when powder dust particle is flowed with the flowing of gas around droplet, droplet surface and dust grain Separated when distance reaches about 0.5 times of powder dust particle diameter between son from gas.Dust grain can be depended on by intercepting trapping The size of son rather than the quality of powder dust particle.
Control unit 500 controls the air output of air supplying part 100 and the cleaning solution emitted dose of ejection section 400.At this time, control unit 500 can utilize following mathematical formulae 1 Callvert (Calvert) by equation determine air supplying part 100 air output and The cleaning solution emitted dose of ejection section 400, makes the dust removal efficiency about more than 0.985 and 0.995 according to following mathematical formulae 4 Hereinafter, preferably about up to 0.99.To this, details are as follows.The air output of air supplying part 100 and the cleaning solution emitted dose quilt of ejection section 400 After decision, the design data air supplying part 100 and injection can also be directly utilized in the case where no control unit 500 controls Portion 400.
First, the percent of pass (Pt of each dust size is calculated by equation by following Callvertd)
【Mathematical formulae 1】
Wherein, PtdRepresent the dust with given particle diameters (d) of collection at large in the gas of inflow venturi pipe portion 200 Particle divides rate, QLRepresent the flow (m for the cleaning solution that ejection section 400 is sprayed3/ s), QGRepresent the gas of inflow venturi pipe portion 200 Body flow (m3/ s), i.e. the air output of air supplying part 100, VGRepresent the speed (cm/s) of gas flowed by throat 220, ρLIt is Density (the g/cm for the cleaning solution that ejection section 400 is sprayed3),ddIt is the average diameter for the cleaning solution droplet that ejection section 400 is sprayed.This When, the cleaning solution droplet that is sprayed by ejection section 400 is to be sprayed by nozzle and passed through by from throat 220 after the process that crushes at the same time Diameter tapers into, and ddIt can represent to reach the droplet diameter changed untill 220 end of throat after spraying from initial nozzle again Be averaged.μ is the viscosity (poise) for the gas for flowing into venturi pipe portion 200, and f is experimental constant, flows into venturi pipe portion 200 Gas in powder dust particle be lipophile particle then 0.25, powder dust particle is hydrophilic particles then 0.5.
KpIt is the inertial collision variable calculated the gas velocity flowed in throat 220, can be calculated as below.
【Mathematical formulae 2】
Wherein, dpIt is the diameter (cm) of powder dust particle in the gas for flow into venturi pipe portion 200, VPIt is to flow into Venturi tube The speed (cm/s) of powder dust particle, ρ in the gas in portion 200WIt is the density (g/cm of water3)。
Average diameter (the d of cleaning solution dropletd) can be calculated as below.
【Mathematical formulae 3】
Wherein, σ be ejection section 400 spray cleaning solution droplet surface tension (dyne/cm), μLIt is that ejection section 400 is sprayed The viscosity (poise) for the cleaning solution penetrated.
The efficiency of air purifier can be calculated as below.
【Mathematical formulae 4】
Efficiency=1-Ptd
If wanting to make to reach 99% to the clearance rate of the dust with given particle diameters (d), mathematical formulae 1 can be utilized to number Learn formula 3 and calculate the efficiency of above mathematical formulae 4 up to the 0.99 gas velocity (V flowed by throat 220G) and ejection section The emitted dose of the cleaning solution of 400 injections, that is, calculate the emitted dose for the cleaning solution needed for the gas flow of pollution to be removed
In other words, control unit 500 is according to the cleaning solution determined using Callvert is known as by the above-mentioned formula of equation Emitted dose control ejection section 400 emitted dose, and according to the gas flow rate of the throat 220 determined with same method control blow The air output in portion 100.Wherein control unit 500 is keeps 220 gas flow rate of throat that determines as described above, using being arranged at throat The air output of (not shown) air supplying part 100 for determining 220 gas flow rate of suitable throat of measurement of rate of flow device near 220, but it is unlimited In this.
As described above, the emitted dose according to the cleaning solution determined by known Callvert by equation, that is, above formula With the air output of air supplying part 100, air supplying part 100 and ejection section 400 can be designed directly to fixed data, and such case Lower control unit 500 can remove.
During the gas flow rate increase of throat 220, even if the removing ratio increase of powder dust particle, energy expenditure can also increase, Therefore determine optimum gas velocity using Culver special formula formula, and then the air output of air supplying part 100 controlled in control unit 500, So as to keep the dust removal efficiency of height, and reduce energy consumption.
Same with this, with the increase of the cleaning solution emitted dose of ejection section 400, powder dust particle, which removes ratio, also to be increased, but Operating cost needed for ejection section increase emitted dose, and volume, that is, air of space, that is, storage unit 310 of storage cleaning solution are net Changing the volume of device can also increase, and therefore, can determine optimal emitted dose by equation using Callvert, and then in control unit The cleaning solution emitted dose of 500 control ejection sections 400.
According to above mathematical formulae, during in order to make the elimination efficiency of powder dust particle of the diameter less than 2.5 μm reach 0.99, with The result of calculation such as table 1 below of the cleaning solution emitted dose of the corresponding ejection section 400 of gas flow rate of throat 220.
【Table 1】
Wherein the air supply velocity of air supplying part 100 is that the gas flow that need to be purified is assumed to be 5m3/min(CMM)。
And according to above mathematical formulae, it is desirable to it is 0.99 to make powder dust particle elimination efficiency of the diameter less than 2.5 μm, according to The gas flow that need to purify calculates the result such as following table of 400 cleaning solution emitted dose of ejection section corresponding with throat 220 gas flow rate 2。
【Table 2】
Fig. 4 is when showing that the cleaning solution emitted dose (3.756l/min) of ejection section 400 immobilizes, public according to above mathematics The chart of the elimination efficiency of powder dust particle of the diameter that formula calculates less than 2.5 μm, it can thus be seen that in order to reach elimination efficiency , then, need to be by the air supply velocity of air supplying part 100 in range of structures of the gas flow rate up to 50m/s of throat 220 to more than 0.99 The gas flow that need to purify is adjusted to 2m3/min(CMM)。
200 inside powder dust particle elimination efficiency of venturi pipe portion is received through the pressure loss of the flowing of throat 220 Influence.That is the pressure loss reaches 500mmH2During more than O, powder dust particle elimination efficiency is no longer significantly increased.
Therefore throat 220 should be designed to keep to the length of the appropriate pressure loss, can utilized below as mathematics is public Poplar (Yung) the formula equation of formula 5 determines the length of throat 220.
【Mathematical formulae 5】
Wherein Δ P is the pressure loss (dyne/cm2), X is can be calculated according to following mathematical formulae 6.
【Mathematical formulae 6】
Wherein ltIt is the length (cm) of throat 220, ρGIt is the gas density (g/cm passed through from throat 2203), CDIt is injection The resistance coefficient (dimensionless) for the cleaning solution droplet with average diameter that portion 400 is sprayed, can count according to following mathematical formulae 7 Calculate.
【Mathematical formulae 7】
Wherein, Re is Reynolds (Reynolds) number, can be calculated according to following mathematical formulae 8.
【Mathematical formulae 8】
Wherein μGIt is the gas viscosity (poise) passed through from throat 220.
According to above-mentioned mathematical formulae, in that case it can be decided that the length (l of throat 220t), pressure loss Δ P is less than mmH2O500。 1mmH2O is scaled 98.0665dyne/cm2。
Control unit 500 can be derived according to using mass balance (Mass balance) equation of following mathematical formulae 9 The following mathematical formulae 13 gone out determines the air output of air supplying part 100, the amount of polluter is reached set water in required time It is flat.When wherein determining the air output of air supplying part 100 in the following manner, the control of control unit 500 is not required to, can directly apply the number According to design air supplying part.
First, the variable quantity per hour for the space-pollution material that need to be purifiedAs shown in following mathematical formulae 9.
【Mathematical formulae 9】
Wherein, Q is the air output pair of the air quantity flowed into the space (System) that need to be purified, its data and air supplying part 100 Should, the Q with above-mentioned mathematical formulae 1GFlow into the gas flow (m of venturi pipe portion 2003/ s) it is consistent.CinIt is to flow into need to purify Space pollutant concentration, CoutRepresent the concentration of the polluter from the space outflow that need to be purified.mgenIt is according in need Liquid pollutant matter flashes to the amount of gas in the space of purification and gaseous contaminent is condensed into the amount of liquid and gives birth in atmosphere Into polluter amount, mconIt is amount and the gaseous state dirt that basis liquid polluter in the space that need to be purified flashes to gas The amount for the polluter that dye material condensation consumes in atmosphere for the amount of liquid.Generated at this time by above-mentioned condensation and evaporation Or the polluter of consumption not only includes the generation and consumption by physical reactions, also include the generation by chemically reacting and disappear Consumption.
Therefore the left side Section 1 of above-mentioned mathematical formulae 9 becomes the amount of the polluter in inflow space, the left side second Item becomes the amount of the polluter flowed out to outside space.
After the space for needing to purify at this time reaches normal condition, if giving the purification that space injection does not include polluter empty Gas, then only purified air stream enters in space, therefore the pollutant concentration, that is, C flowed intoinAs 0, the dirt consumed in atmosphere Contaminate amount, that is, m of materialconAlso become 0, and then derived according to mathematical formulae 9 such as the mathematical formulae of following mathematical formulae 10.
【Mathematical formulae 10】
So-called normal condition is, in the space that need to be purified, fluid contaminants matter flashes to the amount and gaseous contamination of gas The consistent state of the amount of material condensation into liquid, represents that in the space that need to be purified polluter is evaporated to the state of maximum.
I.e. according to mathematical formulae 10, the discharge of polluter and the growing amount of polluter are only considered.
The growing amount of polluter per hourBeing can be by the evaporation rate (v) and polluter of polluter The value that multiplies of area, that is, disengagement area (A) outside contact calculates, and concentration of emission is can to use the dirt being included in spatial volume (V) The amount (m) for contaminating material represents, therefore mathematical formulae 10 can represent such as following mathematical formulae 11.
【Mathematical formulae 11】
Above-mentioned mathematical formulae 11 can be defined such as following mathematical formulae 12.
【Mathematical formulae 12】
By above-mentioned mathematical formulae 12It is set to the constant D of decision proportional to polluter growing amount etc. per hour, Both sides are integrated by separating variables, you can draw following mathematical formulae 13.
【Mathematical formulae 13】
Wherein, ' initial molar ' represents to pollute in air when fluid contaminants matter reaches saturation state in better purifying space Mole (mol) of material, ' this mole ' represent pollutants in air matter corresponding with the desired value that must reach by air purification Molal quantity.
That is according to above mathematical formulae 13, in that case it can be decided that the desired value (this mole) that must be reached by air purification With to reach desired value and the in required time air output (Q) of the air supplying part 100 of (t).
Fig. 5 be show sprayed according to the gas with various speed (m/sec) that is flowed by throat 220 by ejection section 400 it is clear Eluent flow (ml/sec) increase and in interfacial area (a) (cm2/cm3) on the chart of change that occurs, with cleaning solution flow Increase, interfacial area also increases, that is, represents that the cleaning solution droplet average diameter that ejection section 400 is sprayed is reduced.Fig. 6 is according to spray Penetrate the different flow (ml/sec) of the cleaning solution of the injection of portion 400, the gas velocity (V) (m/sec) that display is flowed by throat 220 Increase and in interfacial area (a) (cm2/cm3) on the chart of change that occurs, at the gas velocity increase then interface of throat's flowing Area is consequently increased, that is, represents that the average diameter for the cleaning solution droplet that ejection section 400 is sprayed is reduced.In other words, with gas The quickening of speed and flow increase, broken droplet quantity also increase, therefore learn interfacial area increase.
Fig. 7 is to be shown to be directed to respectively according to the gas with various speed (m/sec) flowed by throat 220 to remove pollution The cleaning solution flow that gas flow need to be sprayed by ejection section 400, i.e. interfacial area (a) (cm2/cm3) because of the increasing of liquid-gas ratio (q) (l/m) The chart for adding and changing, as liquid-gas ratio increases, interfacial area also increases, that is, the cleaning solution droplet that ejection section 400 is sprayed Average diameter reduce.
Above example and attached drawing are merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to foregoing The present invention is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It still can be to foregoing Technical solution described in each embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed Or replace, the essence of appropriate technical solution is departed from the scope of technical solution described in various embodiments of the present invention.

Claims (11)

  1. A kind of 1. micronic dust remover of no strainer, it is characterised in that
    Including：
    Air supplying part, it is discharged after gas is sucked；
    Venturi pipe portion, it possesses shrinkage type inflow part, throat and the diffused that the gas discharged by the air supplying part passes through Outflow portion；
    Charging portion, it possesses the outlet of the storage unit of storage cleaning solution and discharge gas, and will be by the venturi pipe portion stream The gas gone out drains into the outlet；
    Ejection section, it sprays the storage unit cleaning liquid inside into the venturi pipe portion；
    Demisting portion, it is located inside the gas tank portion, and traps the droplet from the gas of outlet outflow；
    The storage unit is recovered to by the droplet of venturi pipe portion generation and in the droplet of demisting portion trapping.
  2. 2. micronic dust remover according to claim 1, it is characterised in that
    Further include：Control the air output of the air supplying part and the control unit of the ejection section emitted dose.
  3. 3. the micronic dust remover of no strainer according to claim 2, it is characterised in that
    The gas tank portion further includes：Adjust the flow velocity adjustment part of internal gas translational speed；
    The control unit controls the flow velocity adjustment part, and then adjusts the speed that gas is flowed to the outlet.
  4. 4. the micronic dust remover of no strainer according to claim 3, it is characterised in that
    The control unit controls the flow velocity adjustment part, make to the gas velocity that the outlet flows in more than 0.8m/s and It is 1.2m/s following.
  5. 5. the micronic dust remover of no strainer according to claim 2, it is characterised in that
    The length of the diffused outflow portion is below more than 3.5 times of the throat diameter and 4.5 times.
  6. 6. the micronic dust remover of no strainer according to claim 2, it is characterised in that
    The control unit determines the air output of the air supplying part and the ejection section according to following mathematical formulae 1 to mathematical formulae 3 Emitted dose, make the efficiency of the i.e. following mathematical formulae 4 of clearance rate of the powder dust particle from the gas that the venturi pipe portion passes through Up to less than more than 0.985 and 0.995,
    [mathematical formulae 1]
    <mrow> <msub> <mi>Pt</mi> <mi>d</mi> </msub> <mo>=</mo> <mi>exp</mi> <mo>&amp;lsqb;</mo> <mfrac> <mrow> <msub> <mi>Q</mi> <mi>L</mi> </msub> <msub> <mi>V</mi> <mi>G</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>L</mi> </msub> <msub> <mi>d</mi> <mi>d</mi> </msub> </mrow> <mrow> <mn>55</mn> <msub> <mi>Q</mi> <mi>G</mi> </msub> <mi>&amp;mu;</mi> </mrow> </mfrac> <mo>{</mo> <mo>-</mo> <mn>0.7</mn> <mo>-</mo> <msub> <mi>K</mi> <mi>p</mi> </msub> <mi>f</mi> <mo>+</mo> <mn>1.4</mn> <mi>l</mi> <mi>n</mi> <mrow> <mo>(</mo> <mfrac> <mrow> <msub> <mi>K</mi> <mi>p</mi> </msub> <mi>f</mi> <mo>+</mo> <mn>0.7</mn> </mrow> <mn>0.7</mn> </mfrac> <mo>)</mo> </mrow> <mo>+</mo> <mfrac> <mn>0.49</mn> <mrow> <mn>0.7</mn> <mo>+</mo> <msub> <mi>K</mi> <mi>p</mi> </msub> <mi>f</mi> </mrow> </mfrac> <mo>}</mo> <mfrac> <mn>1</mn> <msub> <mi>K</mi> <mi>p</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> </mrow>
    Wherein, QLIt is the emitted dose of the ejection section, QGIt is the air output of the air supplying part, VGIt is the gas in throat flowing Body flow velocity, ρLIt is the density of the cleaning solution of ejection section injection, ddIt is the average straight of the cleaning solution droplet of the ejection section injection Footpath, μ are the gas viscositys for flowing into the venturi pipe portion, and f is experimental constant,
    [mathematical formulae 2]
    <mrow> <msub> <mi>K</mi> <mi>p</mi> </msub> <mo>=</mo> <mfrac> <mrow> <msup> <msub> <mi>d</mi> <mi>p</mi> </msub> <mn>2</mn> </msup> <msub> <mi>V</mi> <mi>p</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>w</mi> </msub> </mrow> <mrow> <mn>9</mn> <msub> <mi>&amp;mu;d</mi> <mi>d</mi> </msub> </mrow> </mfrac> </mrow>
    Wherein, dpIt is the diameter of powder dust particle in the gas for flow into the venturi pipe portion, VPIt is to flow into the venturi pipe portion The speed of powder dust particle, ρ in gasWIt is the density of water,
    [mathematical formulae 3]
    <mrow> <msub> <mi>d</mi> <mi>d</mi> </msub> <mo>=</mo> <mfrac> <mrow> <mn>58</mn> <mo>,</mo> <mn>600</mn> </mrow> <msub> <mi>V</mi> <mi>G</mi> </msub> </mfrac> <msup> <mrow> <mo>&amp;lsqb;</mo> <mfrac> <mi>&amp;sigma;</mi> <msub> <mi>&amp;rho;</mi> <mi>L</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mn>0.5</mn> </msup> <mo>+</mo> <mn>597</mn> <msup> <mrow> <mo>&amp;lsqb;</mo> <mfrac> <msub> <mi>&amp;mu;</mi> <mi>L</mi> </msub> <msup> <mrow> <mo>(</mo> <msub> <mi>&amp;sigma;&amp;rho;</mi> <mi>L</mi> </msub> <mo>)</mo> </mrow> <mn>0.5</mn> </msup> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mn>0.45</mn> </msup> <msup> <mrow> <mo>&amp;lsqb;</mo> <mn>1</mn> <mo>,</mo> <mn>000</mn> <mfrac> <msub> <mi>Q</mi> <mi>L</mi> </msub> <msub> <mi>Q</mi> <mi>G</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mn>1.5</mn> </msup> </mrow>
    Wherein, σ is the surface tension of the cleaning solution droplet of ejection section injection, μLIt is the cleaning solution of the ejection section injection Viscosity,
    [mathematical formulae 4]
    Efficiency=1-Ptd。
  7. 7. the micronic dust remover of no strainer according to claim 6, it is characterised in that
    The throat length is determined based on following mathematical formulae 5 to mathematical formulae 8, the pressure loss in throat is existed 500mmH2Below O,
    [mathematical formulae 5]
    <mrow> <mi>&amp;Delta;</mi> <mi>P</mi> <mo>=</mo> <mn>2</mn> <msub> <mi>&amp;rho;</mi> <mi>L</mi> </msub> <msup> <msub> <mi>V</mi> <mi>G</mi> </msub> <mn>2</mn> </msup> <mo>&amp;lsqb;</mo> <mfrac> <msub> <mi>Q</mi> <mi>L</mi> </msub> <msub> <mi>Q</mi> <mi>G</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <msup> <mi>X</mi> <mn>2</mn> </msup> <mo>+</mo> <msqrt> <mrow> <msup> <mi>X</mi> <mn>4</mn> </msup> <mo>-</mo> <msup> <mi>X</mi> <mn>2</mn> </msup> </mrow> </msqrt> <mo>)</mo> </mrow> </mrow>
    Wherein, Δ P is the pressure loss,
    [mathematical formulae 6]
    <mrow> <mi>X</mi> <mo>=</mo> <mfrac> <mrow> <mn>3</mn> <msub> <mi>l</mi> <mi>t</mi> </msub> <msub> <mi>C</mi> <mi>D</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>G</mi> </msub> </mrow> <mrow> <mn>16</mn> <msub> <mi>d</mi> <mi>d</mi> </msub> <msub> <mi>&amp;mu;</mi> <mi>L</mi> </msub> </mrow> </mfrac> <mo>+</mo> <mn>1</mn> </mrow>
    Wherein, ltIt is the length of the throat,
    [mathematical formulae 7]
    <mrow> <msub> <mi>C</mi> <mi>D</mi> </msub> <mo>=</mo> <mfrac> <mn>24</mn> <mi>Re</mi> </mfrac> <mo>+</mo> <mfrac> <mn>4</mn> <msup> <mrow> <mo>(</mo> <mi>Re</mi> <mo>)</mo> </mrow> <mrow> <mn>1</mn> <mo>/</mo> <mn>3</mn> </mrow> </msup> </mfrac> </mrow>
    [mathematical formulae 8]
    <mrow> <mi>Re</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>d</mi> <mi>d</mi> </msub> <msub> <mi>V</mi> <mi>G</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>G</mi> </msub> </mrow> <msub> <mi>&amp;mu;</mi> <mi>G</mi> </msub> </mfrac> </mrow>
    Wherein, ρGIt is the gas density passed through from the throat, μGIt is the gas viscosity passed through from the throat.
  8. 8. the micronic dust remover of no strainer according to claim 2, it is characterised in that
    The control unit controls the air supplying part according to the air output determined based on following mathematical formulae 13,
    [mathematical formulae 13]
    Wherein, Q is the air output of the air supplying part, and D is the constant proportional to polluter growing amount per hour, initial molar It is the molal quantity (mol) of polluter in air when fluid contaminants matter is evaporated up to saturation state in better purifying space, this rubs You are the molal quantitys of pollutants in air matter corresponding with the desired value to be reached by air purification, and t is to reach the target Time needed for value.
  9. 9. the micronic dust remover of no strainer according to claim 1, it is characterised in that
    The emitted dose of the air output of the air supplying part and the ejection section is, based on the mathematical formulae 1 to mathematical formulae 3, to make The efficiency of the i.e. following mathematical formulae 4 of the clearance rate of powder dust particle is up to more than 0.985 in the gas passed through from the venturi pipe portion With less than 0.995.
    [mathematical formulae 1]
    <mrow> <msub> <mi>Pt</mi> <mi>d</mi> </msub> <mo>=</mo> <mi>exp</mi> <mo>&amp;lsqb;</mo> <mfrac> <mrow> <msub> <mi>Q</mi> <mi>L</mi> </msub> <msub> <mi>V</mi> <mi>G</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>L</mi> </msub> <msub> <mi>d</mi> <mi>d</mi> </msub> </mrow> <mrow> <mn>55</mn> <msub> <mi>Q</mi> <mi>G</mi> </msub> <mi>&amp;mu;</mi> </mrow> </mfrac> <mo>{</mo> <mo>-</mo> <mn>0.7</mn> <mo>-</mo> <msub> <mi>K</mi> <mi>p</mi> </msub> <mi>f</mi> <mo>+</mo> <mn>1.4</mn> <mi>ln</mi> <mrow> <mo>(</mo> <mfrac> <mrow> <msub> <mi>K</mi> <mi>p</mi> </msub> <mi>f</mi> <mo>+</mo> <mn>0.7</mn> </mrow> <mn>0.7</mn> </mfrac> <mo>)</mo> </mrow> <mo>+</mo> <mfrac> <mn>0.49</mn> <mrow> <mn>0.7</mn> <mo>+</mo> <msub> <mi>K</mi> <mi>p</mi> </msub> <mi>f</mi> </mrow> </mfrac> <mo>}</mo> <mfrac> <mn>1</mn> <msub> <mi>K</mi> <mi>p</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> </mrow>
    Wherein, QLIt is the emitted dose of the ejection section, QGIt is the air output of the air supplying part, VGFlowed by the throat Gas flow rate, ρLIt is the density of the cleaning solution of ejection section injection, ddIt is being averaged for the cleaning solution droplet of the ejection section injection Diameter, μ are the gas viscositys for flowing into the venturi pipe portion, and f is experimental constant,
    [mathematical formulae 2]
    <mrow> <msub> <mi>K</mi> <mi>p</mi> </msub> <mo>=</mo> <mfrac> <mrow> <msup> <msub> <mi>d</mi> <mi>p</mi> </msub> <mn>2</mn> </msup> <msub> <mi>V</mi> <mi>p</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>w</mi> </msub> </mrow> <mrow> <mn>9</mn> <msub> <mi>&amp;mu;d</mi> <mi>d</mi> </msub> </mrow> </mfrac> </mrow>
    Wherein, dpIt is the diameter of powder dust particle in the gas for flow into the venturi pipe portion, VPIt is to flow into the venturi pipe portion The speed of powder dust particle, ρ in gasWIt is the density of water,
    [mathematical formulae 3]
    <mrow> <msub> <mi>d</mi> <mi>d</mi> </msub> <mo>=</mo> <mfrac> <mrow> <mn>58</mn> <mo>,</mo> <mn>600</mn> </mrow> <msub> <mi>V</mi> <mi>G</mi> </msub> </mfrac> <msup> <mrow> <mo>&amp;lsqb;</mo> <mfrac> <mi>&amp;sigma;</mi> <msub> <mi>&amp;rho;</mi> <mi>L</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mn>0.5</mn> </msup> <mo>+</mo> <mn>597</mn> <msup> <mrow> <mo>&amp;lsqb;</mo> <mfrac> <msub> <mi>&amp;mu;</mi> <mi>L</mi> </msub> <msup> <mrow> <mo>(</mo> <msub> <mi>&amp;sigma;&amp;rho;</mi> <mi>L</mi> </msub> <mo>)</mo> </mrow> <mn>0.5</mn> </msup> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mn>0.45</mn> </msup> <msup> <mrow> <mo>&amp;lsqb;</mo> <mn>1</mn> <mo>,</mo> <mn>000</mn> <mfrac> <msub> <mi>Q</mi> <mi>L</mi> </msub> <msub> <mi>Q</mi> <mi>G</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> </mrow> <mn>1.5</mn> </msup> </mrow>
    Wherein, σ is the surface tension of the cleaning solution droplet of ejection section injection, μLIt is the cleaning solution of the ejection section injection Viscosity,
    [mathematical formulae 4]
    Efficiency=1-Ptd。
  10. 10. micronic dust remover according to claim 9, it is characterised in that
    The throat length is determined based on following mathematical formulae 5 to mathematical formulae 8,
    [mathematical formulae 5]
    <mrow> <mi>&amp;Delta;</mi> <mi>P</mi> <mo>=</mo> <mn>2</mn> <msub> <mi>&amp;rho;</mi> <mi>L</mi> </msub> <msup> <msub> <mi>V</mi> <mi>G</mi> </msub> <mn>2</mn> </msup> <mo>&amp;lsqb;</mo> <mfrac> <msub> <mi>Q</mi> <mi>L</mi> </msub> <msub> <mi>Q</mi> <mi>G</mi> </msub> </mfrac> <mo>&amp;rsqb;</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <msup> <mi>X</mi> <mn>2</mn> </msup> <mo>+</mo> <msqrt> <mrow> <msup> <mi>X</mi> <mn>4</mn> </msup> <mo>-</mo> <msup> <mi>X</mi> <mn>2</mn> </msup> </mrow> </msqrt> <mo>)</mo> </mrow> </mrow>
    Wherein, Δ P is the pressure loss,
    [mathematical formulae 6]
    <mrow> <mi>X</mi> <mo>=</mo> <mfrac> <mrow> <mn>3</mn> <msub> <mi>l</mi> <mi>t</mi> </msub> <msub> <mi>C</mi> <mi>D</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>G</mi> </msub> </mrow> <mrow> <mn>16</mn> <msub> <mi>d</mi> <mi>d</mi> </msub> <msub> <mi>&amp;mu;</mi> <mi>L</mi> </msub> </mrow> </mfrac> <mo>+</mo> <mn>1</mn> </mrow>
    Wherein, ltIt is the length of the throat,
    [mathematical formulae 7]
    <mrow> <msub> <mi>C</mi> <mi>D</mi> </msub> <mo>=</mo> <mfrac> <mn>24</mn> <mi>Re</mi> </mfrac> <mo>+</mo> <mfrac> <mn>4</mn> <msup> <mrow> <mo>(</mo> <mi>Re</mi> <mo>)</mo> </mrow> <mrow> <mn>1</mn> <mo>/</mo> <mn>3</mn> </mrow> </msup> </mfrac> </mrow>
    [mathematical formulae 8]
    <mrow> <mi>Re</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>d</mi> <mi>d</mi> </msub> <msub> <mi>V</mi> <mi>G</mi> </msub> <msub> <mi>&amp;rho;</mi> <mi>G</mi> </msub> </mrow> <msub> <mi>&amp;mu;</mi> <mi>G</mi> </msub> </mfrac> </mrow>
    Wherein, ρGIt is the gas density passed through from the throat, μGIt is the gas viscosity passed through from the throat,
    It can determine to make the pressure loss be less than 500mmH2O。
  11. 11. micronic dust remover according to claim 1, it is characterised in that
    The air output of the air supplying part determines according to following mathematical formulae 13,
    [mathematical formulae 13]
    Wherein, Q is the air output of the air supplying part, and D is the constant proportional to polluter growing amount per hour, initial molar It is the molal quantity (mol) that fluid contaminants matter is evaporated up to polluter in air when reaching saturation state in better purifying space, This mole is the molal quantity of pollutants in air matter corresponding with the desired value to be reached by air purification, and t is to reach State the time needed for desired value.
CN201710796501.9A 2016-10-17 2017-09-06 Micronic dust remover without strainer Pending CN107952316A (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN108479274A (en) * 2018-06-11 2018-09-04 兰州大学 Cleaner
CN111714676A (en) * 2020-04-30 2020-09-29 武汉大学 Movable air sterilizing device
WO2021218052A1 (en) * 2020-04-30 2021-11-04 武汉大学 Mixer and separated air purification device comprising same
CN111715000A (en) * 2020-06-16 2020-09-29 上海建工四建集团有限公司 Purification method for airflow with dust
CN111715000B (en) * 2020-06-16 2023-08-08 上海建工四建集团有限公司 Purification method for airflow with dust

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