CN104906913B - A kind of method and device utilizing humidification and condensation to bear water reduction airborne suspended particulate - Google Patents
A kind of method and device utilizing humidification and condensation to bear water reduction airborne suspended particulate Download PDFInfo
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- CN104906913B CN104906913B CN201510183767.7A CN201510183767A CN104906913B CN 104906913 B CN104906913 B CN 104906913B CN 201510183767 A CN201510183767 A CN 201510183767A CN 104906913 B CN104906913 B CN 104906913B
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- water
- waveguide tube
- acoustic waveguide
- air
- heater
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Abstract
Description
Technical field
The present invention relates to a kind of method and device reducing airborne suspended particulate, especially to the suspension in room air Grain thing (such as PM2.5), particularly relates to humidification and condensation and bears water the technology reducing airborne suspended particulate.
Background technology
Suspended particulate substance PM (such as PM2.5, PM10) has become as the main cause of atmosphere pollution, directly endangers indoor Air quality, needs the efficient clearance technique of suspended particles in room thing that invention is new badly.Utilize hanging in strainer filtering room air Floating particles is one of suspended particulate substance sweep-out method of mainly using of present air clean system.Life-time service mistake at filter screen Cheng Zhong, filter screen can accumulate the suspended particulate substance filtered out from air, needs to regularly replace filter screen or clean, as Filter screen breed bacteria can be made if local environment is moist for a long time and then brings new air pollution problem inside rooms, endangering health of people. Water curtain sprinkling air can make suspended particulate substance contact with spray water drops surface and merge in suspension water droplet, and then plays fall The effect of suspended particulate substance in low air.Suspension water droplet is the least, the total surface area of the suspension water droplet that the unit consumption water yield is formed The biggest, it is possible to merge the content of suspended particulate substance in absorption air the most.The little water droplet of suspension produced due to water curtain sprinkling Quantity and size are limited, and the size of the little water droplet that suspends will not be the least, the total surface of the suspension water droplet that the unit consumption water yield is formed Amassing will not be the biggest.If the elimination effect of suspended particulate substance to be strengthened, need to increase water spray or spraying intensity.Before Person can consume the too much water yield, and the latter can consume too much mechanical power.Further, since the poly-of injection dissipates property, it is sparged into air In water droplet the most uniformly cannot ensure with contacting of air, the suspended particulate substance elimination effect obvious difference of diverse location, Hinder the realization of optimal elimination efficiency.The little water droplet produced due to spray can form new suspended particulate substance, if shower water Mineral content in source is too much, and it is air-polluting that the suspension water droplet containing high concentration mineral content can cause aggravating particle New problem.Filter screen broadly falls into the quilt of suspended particulate substance to filtration and the water droplet of suspended particulate substance to the fusion of suspended particulate substance Dynamic removing.
It is said that in general, atmospheric environment is after rainfall (such as heavy rain heavy rain etc.), in air, the quantity of particle can drastically subtract Few.In upper atmosphere, owing to damp atmosphere and cold air meet, water vapour molecule in air spontaneous with small Suspended particulate substance be the spontaneous liquefaction of the nuclei of condensation be little water droplet.Along with carrying out further of steam liquefaction, little water droplet is gradually The fusion that contacts with each other become between big water droplet, or high-altitude water droplet gradually forms big water droplet.Enough quality big formed Water droplet under gravity, is deposited in ground.On the one hand the suspended particulate substance in air with the form of the nuclei of condensation with water droplet Drop to ground, it is achieved remove from air；On the other hand, water droplet landing ground during with the suspension in air Particulate matter contacts, and contact particulate matter and water droplet merge, and drop to ground with water droplet, plays suspended particulate substance in removing air Effect.Substantially reduce and formed the feature of the air quality of " excellent " according to the suspended particulate matter concentration in air after rainfall, This airborne suspended particulate sweep-out method with " atmospheric precipitation " as pattern feature is particle side in removing air Mask has an enormous advantage.
When motion during the air containing suspended particulate substance is at the standing-wave sound field environment with thermograde, suspended particulate substance is subject to To Brownian movement power, inertia force, gravity, sound power and the comprehensive function of thermograde.Brownian movement, inertia and gravity Effect to particle exists all the time, is difficult to regulate control；And sound and thermograde can apply feelings by regulation is outside Particle is formed by condition has controlled directed driven power, and then unmanageable other that neutral buoyancy granule is subject to is made Firmly.After suitable controlled active force and uncontrollable counteracting force balance, particle can orient fortune in atmosphere Dynamic.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides one to utilize humidification and condensation to bear water fall The method and device of low airborne suspended particulate, first adds water vapour molecule in contaminated air, then by discrete interval Engineering is lowered the temperature, and condensation promotes that water vapour molecule liquefaction bears water to catch suspended particulate substance, after through sound wave and thermograde External action promotes little water droplet grow up and settle, and then realizes reducing airborne suspended particulate.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of method utilizing humidification and condensation to bear water reduction airborne suspended particulate, contaminated air R4 includes uniformly mixing Water vapour molecule R1, suspended particulate substance R2 and pure air R3, contaminated air R4 is carried out the engineering of discrete interval Cooling, excites the water vapour molecule R1 in contaminated air R4 to be condensed into containing suspending with suspended particulate substance R2 for the nuclei of condensation The water droplet R5 of particulate matter R2, water droplet R5 are divided into little water droplet R51 and big water droplet R52, little water under the effect of external force R6 Dripping R51 length greatly flood and drip R52, under the effect of external force R6, big water droplet R52 isolates from contaminated air R4, shape Become pure air R3；External force R6 includes Brownian movement power R61, inertia force R62, gravity R63, sound power R64 and temperature The common effect of degree gradient R65.
A kind of utilize humidification and condensation bear water reduce airborne suspended particulate device, including bleed machine, heat up humidification assembly, Strong sound standing wave promotes to condense except water assembly, heat up heating assembly, trachea assembly and insulation material；
The described humidification assembly that heats up includes intensification humidifying chamber, the first air heater, constant-temperature liquid water and water heater, permanent Temperature aqueous water is placed in intensification humidifying chamber；First air heater includes being connected into the first of loop by the first energy channel Energy source of supply and first surface heater, wherein first surface heater is positioned at intensification humidifying chamber, and is positioned at constant temperature liquid State water ullage；Water heater includes the second energy source of supply and the second table being connected into loop by the second energy channel Face heater, second surface heater is positioned at intensification humidifying chamber, and is positioned at below constant-temperature liquid water liquid level；
Described strong sound standing wave promotes to condense except water assembly includes strong sound standing wave generating assembly, cooling assembly, heat-insulation layer, entrant sound Choke impermeable film, cistern and water pipe；Described strong sound standing wave generating assembly includes acoustic waveguide tube, reflecting curtain, punching Dividing plate, cavity, signal generator and speaker, signal generator is connected with speaker by wire；The right side of acoustic waveguide tube End is provided with punching dividing plate, and the left end at acoustic waveguide tube is provided with reflecting curtain, and entrant sound choke impermeable film is arranged on sound wave The antinode of conduit or node position, be divided into right acoustic waveguide tube and left acoustic duct by entrant sound choke impermeable film by acoustic waveguide tube Pipe two parts；Being provided with through hole on punching dividing plate, the right-hand member of cavity covers through hole, and the horn mouth of speaker covers cavity Right-hand member, the hemi-closure space structure that punching dividing plate, cavity and speaker composition are connected only by through hole with the external world, should be partly Close space structure and belong to Helmholtz resonator structure；Described cooling assembly includes high thermoconductivity filler, spiral table Cooling coil and low-temperature receiver, spiral Surface cooling coil and low-temperature receiver become loop, spiral Surface cooling coil spiral spacer by cooling Tandem Be centered around on left acoustic waveguide tube outer wall, high thermoconductivity filler cover on left acoustic waveguide tube outer wall, fill spiral table cold The unlapped region of coil pipe；The thermal resistance of described high thermoconductivity filler meet be centered around on left acoustic waveguide tube do not cover spiral In the horizontal cross sectional area of coil pipe, the horizontal direction between adjacent spiral coil has thermograde；Described heat-insulation layer cladding sound Waveguide and the whole outer surface of cavity；The bottom of described left acoustic waveguide tube is connected with cistern by water pipe；Described sound Waveguide horizontal positioned；
The described heating assembly that heats up includes firing chamber and the 3rd air heater, and the 3rd air heater includes by the 3rd energy Amount Tandem becomes the 3rd energy source of supply and the 3rd surface heater in loop, and wherein the 3rd surface heater is positioned at intensification Indoor；
The SY that described trachea assembly includes connecting bleed machine and indoor YS trachea, connects intensification humidifying chamber and bleed machine Trachea, connect the ZS trachea of left acoustic waveguide tube and intensification humidifying chamber, connect the firing chamber SZ trachea with left acoustic waveguide tube With SS trachea with firing chamber in communication chamber；
Described insulation material covers in trachea assembly, bleed machine, intensification humidifying chamber and the outside of firing chamber；
The SS air inlet that intensification humidifying chamber connects with SY trachea is higher than the liquid level of constant-temperature liquid water, intensification humidifying chamber and ZS The SZ gas outlet of trachea connection is higher than the liquid level of constant-temperature liquid water, and the height of liquid level is less than the height of 1/2 times of intensification humidifying chamber Degree, the height of first surface heater bottom is more than the height of 2 times of liquid levels, and the height on second surface heater top is less than The height of 1/2 times of liquid level, the temperature of first surface heater is higher than the temperature of second surface heater；The length of acoustic waveguide tube Degree is more than or equal to the wavelength of 1/2 standing wave, and the port that left acoustic waveguide tube is connected with ZS trachea is ZZ air inlet, and ZZ enters The distance of QI KOU and entrant sound choke impermeable film is less than the wavelength of 1/2 standing wave, the end that left acoustic waveguide tube is connected with SZ trachea Mouth is ZS gas outlet, and the distance of ZS gas outlet and reflecting curtain is less than the wavelength of 1/2 standing wave, entrant sound choke impermeable film With the distance wavelength more than 1/8 standing wave of punching dividing plate and the wavelength less than 3/2 standing wave, the bottom of left acoustic waveguide tube is higher than The top of cistern.
Concrete, in described strong sound standing wave generating assembly, described wire, signal generator and speaker composition closed-loop path； Described acoustic waveguide tube, through hole and cavity are cylinder, and described through hole is positioned at the center of punching dividing plate, described acoustic waveguide tube Diameter more than the diameter of through hole, the diameter of described acoustic waveguide tube is less than the wavelength of 1/4 standing wave, and the diameter of described through hole is little Diameter in cavity；The center of described reflecting curtain, acoustic waveguide tube, punching dividing plate, cavity and speaker is in same level The acoustic resonance cavity of closing it is sequentially connected in series, at the sky that reflecting curtain, acoustic waveguide tube and punching dividing plate are formed on axis The strong sound standing wave of interior generation；The resonance of the hemi-closure space structure of described through hole, punching dividing plate, cavity and speaker composition Frequency f0Expression formula is:
In formula, c is the velocity of sound, dnFor the diameter of through hole, lnFor the length of through hole, dtFor the diameter of cavity, ltFor cavity Length；
Described through hole and the length of cavity and diameter are respectively less than the wavelength of standing wave；Certain first order resonance frequency of described acoustic waveguide tube With resonant frequency f0, the output signal frequency of signal generator, speaker output the frequency of sound wave equal.
Beneficial effect: what the present invention provided utilizes humidification and condensation to bear water the method and device reducing airborne suspended particulate, profit Being used in when cooling of discrete interval, the water vapour molecule being mixed in contaminated air condenses with suspended particulate substance for the nuclei of condensation For little water droplet, under external force, suspended particulate substance is along with little water droplet becomes big water droplet and settles, it is achieved suspended particulate substance Remove from contaminated air, play and reduce the effect of suspended particulate substance in the most fully erased air；The present invention is relative to existing There is technology, have the advantage that
1, relying on the liquefaction of vaporous water molecule to remove the process of particle in air and need not filter screen, whole device can be used As rustless steel, glass or lucite make, clean environment, there is not the problem using filter screen to bring；
2, utilize sound standing wave and thermograde to the controlled directional migration effect neutral buoyancy particulate matter of suspended particulate substance simultaneously The random Brownian movement, inertia and the action of gravity that are subject to realize removing suspended particulate substance in air；
3, the thermograde that the engineering cooling of discrete interval axially produces at acoustic waveguide tube makes setting strength shape in the axial direction Become the Discrete Distribution of fluctuations, on the one hand avoid high shredded tobacco for water pipes gas at the too much water droplet acutely condensing generation near entrance location And form " approximation sound insulation curtain wall " impact on sound standing wave field, on the other hand approximate at acoustic waveguide tube axis direction What uniform condensation process made the sound standing wave approximation equal extent in the axial whole space of acoustic waveguide tube participates in condensing water droplet During, improve the utilization rate of sound standing wave field；
4, it is evenly distributed in contaminated air due to the suspended particulate substance in air, water vapour molecule, water vapour molecule The amount of droplets formed after liquefaction is many, and total surface area is big, and initial droplet sizes can be sufficiently small, is evenly distributed, suspension The efficiency that grain thing is removed is the highest；
5, due to the invigoration effect of sound field, droplet to the conversion of big drop faster, droplet formation faster, particle Thing with drop sedimentation faster；
6, use surface evaporation to air wetting, it is to avoid aqueous water be directly torn generation little water droplet enter air and then Cause the mineral in water to enter air and form new particle polluter；
7, the acoustic pressure amplification to resonant frequency sound wave of Helmholtz resonator is utilized, it is achieved weak sound wave is to strong sound wave Transformation, it is achieved utilize small-power transducer also can produce the effect of high intensity standing wave.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram of the present invention；
Fig. 2 is that a kind of of the present invention implements device schematic diagram；
Fig. 3 is a kind of technical process schematic diagram implementing device of the present invention；
Fig. 4 is a kind of process simplification schematic diagram implementing device of the present invention；
Fig. 5 is a kind of strong sound standing wave generating assembly schematic diagram implementing device of the present invention；
Fig. 6 is a kind of acoustic waveguide tube schematic diagram implementing device of the present invention；
Fig. 7 is a kind of cooling component diagram implementing device of the present invention；
Fig. 8 is a kind of trachea assembly connection diagram implementing device of the present invention；
Fig. 9 is the case that the present invention is removed the air handling process of suspended particulate substance to contaminated air；
Figure 10 is the amendment case that the present invention is removed the air handling process of suspended particulate substance to contaminated air；
In figure: R1-water vapour molecule, R2-suspended particulate substance, R3-pure air, R4-contaminated air, R5-water droplet, The little water droplet of R51-, the big water droplet of R52-, R6-external force, R61-Brownian movement power, R62-inertia force, R63-gravity, R64- Sound power, R65-thermograde, the engineering cooling of R7-discrete interval, the lower water of engineering cooling R7 effect of R8-discrete interval The vapour molecule R1 condensation with suspended particulate substance R2 as the nuclei of condensation, under R9-external force R6 effect, little water droplet R51 is to flood Drip growing up of R52 transformation, big water droplet R52 and the separation of pure air R3 under R10-external force R6 effect；
1-bleed machine, 2-heats up and humidifies assembly, 21-intensification humidifying chamber, and 22-the first air heater, 221-the first energy supplies Ying Yuan, 222-first energy channel, 223-first surface heater, 23-constant-temperature liquid water, 24-water heater, 241- Second energy source of supply, 242-the second energy channel, 243-second surface heater, the strong sound standing wave of 3-promotes to condense except water Assembly, 31-strong sound standing wave generating assembly, 311-acoustic waveguide tube, the left acoustic waveguide tube of 3111-, the right acoustic waveguide tube of 3112-, 312- Reflecting curtain, 313-punches dividing plate, and 314-through hole, 315-cavity, 316-wire, 317-signal generator, 318-raises one's voice Device, 32-cools down assembly, 321-high thermoconductivity filler, 322-spiral Surface cooling coil, 323-low-temperature receiver, 324-cooling passage, 33-heat-insulation layer, 34-entrant sound choke impermeable film, 35-cistern, 36-water pipe, 4-heats up and heats assembly, 41-firing chamber, 42-the second air heater, 421-the 3rd energy source of supply, 422-the 3rd energy channel, 423-the 3rd surface heater, 5-is indoor, 6-trachea assembly, 61-YS trachea, 62-SY trachea, 63-ZS trachea, 64-SZ trachea, 65-SS gas Pipe, 71-SS air inlet, 72-SZ gas outlet, 73-ZZ air inlet, 74-ZS gas outlet, 8-hemi-closure space structure；
T1-low water contaminated air, T2-high water contamination air, T3-low temperature pure air, T4-heat temperature raising, T5-evaporation adds Wet, cooling of T6-discrete interval, the acceleration of little water droplet is formed and becomes big effect, T8-external heat source by T7-standing wave Heat temperature raising to low temperature pure air T3；
S1-introduces low water contaminated air T1, S2-low water contaminated air T1 heated intensification T4 from indoor 5 and evaporation adds High water contamination air T2, S3-high water contamination air T2 is become in strong standing wave environment through the cooling of discrete interval after wet T5 Low temperature pure air T3, S4-low temperature pure air T3 heated intensification T4 is become, when temperature is with indoor after cooling T6 Air themperature sends indoor 5 the most afterwards back to.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
It is illustrated in figure 1 a kind of method utilizing humidification and condensation to bear water reduction airborne suspended particulate, in contaminated air R4 Including mixed uniformly water vapour molecule R1, suspended particulate substance R2 and pure air R3, contaminated air R4 is carried out from Dissipate the engineering cooling at interval, excite the water vapour molecule R1 in contaminated air R4 to coagulate for the nuclei of condensation with suspended particulate substance R2 Becoming the water droplet R5 containing suspended particulate substance R2, water droplet R5 is divided into little water droplet R51 and big water droplet R52, in external force R6 Under effect, little water droplet R51 length greatly flood drips R52, and under the effect of external force R6, big water droplet R52 is from contaminated air R4 Isolate, form pure air R3；External force R6 includes Brownian movement power R61, inertia force R62, gravity R63, sound Power R64 and the common effect of thermograde R65.
Be illustrated in figure 2 a kind of utilize humidification and condensation bear water reduce airborne suspended particulate device, including bleed machine 1, Heat up and humidify assembly 2, strong sound standing wave promotes to condense except water assembly 3, heats up and heat assembly 4, trachea assembly 6 and thermal insulating material Material.
The described humidification assembly 2 that heats up includes intensification humidifying chamber the 21, first air heater 22, constant-temperature liquid water 23 and water Heater 24, constant-temperature liquid water 23 is placed in intensification humidifying chamber 21；First air heater 22 includes by the first energy Amount passage 222 is connected into the first energy source of supply 221 and the first surface heater 223 in loop, and wherein first surface adds Hot device 223 is positioned at intensification humidifying chamber 21, and is positioned at above constant-temperature liquid water 23 liquid level 231；Water heater 24 wraps Include the second energy source of supply 241 and the second surface heater 243 being connected into loop by the second energy channel 242, the Two surface heaters 243 are positioned at intensification humidifying chamber 21, and are positioned at below constant-temperature liquid water 23 liquid level 231.
As shown in Fig. 5, Fig. 6 and Fig. 7, described strong sound standing wave promotes to condense except water assembly 3 includes strong sound standing wave generation group Part 31, cooling assembly 32, heat-insulation layer 33, entrant sound choke impermeable film 34, cistern 35 and water pipe 36；Described by force Sound standing wave generating assembly 31 includes acoustic waveguide tube 311, reflecting curtain 312, punching dividing plate 313, cavity 315, signal Generator 317 and speaker 318, signal generator 317 is connected with speaker 318 by wire 316；Acoustic waveguide tube The right-hand member of 311 is provided with punching dividing plate 313, and the left end at acoustic waveguide tube 311 is provided with reflecting curtain 312, entrant sound choke Impermeable film 34 is arranged on antinode or the node position of acoustic waveguide tube 311, by entrant sound choke impermeable film 34 by sound wave Conduit 311 is divided into right acoustic waveguide tube 3112 and left acoustic waveguide tube 3111 two parts；It is provided with through hole on punching dividing plate 313 314, the right-hand member of cavity 315 covers through hole 314, and the horn mouth of speaker 318 covers the right-hand member of cavity 315, punch every The hemi-closure space structure 8 that plate 313, cavity 315 and speaker 318 composition are connected only by through hole 314 with the external world, This hemi-closure space structure 8 belongs to Helmholtz resonator structure；Described cooling assembly 32 includes high thermoconductivity filler 321, spiral Surface cooling coil 322 and low-temperature receiver 323, spiral Surface cooling coil 322 and low-temperature receiver 323 are by cooling passage 324 It is connected into loop, is centered around to spiral Surface cooling coil 322 spiral spacer on left acoustic waveguide tube 3111 outer wall, high conduction of heat Rate filler 321 covers on left acoustic waveguide tube 3111 outer wall, fills the unlapped region of spiral Surface cooling coil 322；Institute State the thermal resistance of high thermoconductivity filler 321 meet be centered around on left acoustic waveguide tube 3111 do not cover spiral coil 322 The horizontal direction between adjoining spiral coil pipe in horizontal cross sectional area has thermograde；Described heat-insulation layer 33 cladding sound Waveguide 311 and the whole outer surface of cavity 315；The bottom of described left acoustic waveguide tube 3111 is by water pipe 36 and storage Pond 35 connects；Described acoustic waveguide tube 311 horizontal positioned.
The described heating assembly 4 that heats up includes firing chamber 41 and the 3rd air heater 42, and the 3rd air heater 42 includes The 3rd energy source of supply 421 and the 3rd surface heater 423 in loop it is connected into, wherein by the 3rd energy channel 422 3rd surface heater 423 is positioned at firing chamber 41.
As shown in Figure 8, described trachea assembly 6 include connect bleed machine 1 with indoor 5 YS trachea 61, connect intensification Humidifying chamber 21 and the SY trachea 62 of bleed machine 1, connect the left acoustic waveguide tube 3111 ZS trachea with intensification humidifying chamber 21 63, in the SZ trachea 64 of connection firing chamber 41 and left acoustic waveguide tube 3111 and communication chamber 5 with the SS of firing chamber 41 Trachea 65.
Described insulation material covers in trachea assembly 6, bleed machine 1, intensification humidifying chamber 21 and the outside of firing chamber 41.
The SS air inlet 71 that intensification humidifying chamber 21 connects with SY trachea 62 is higher than the liquid level 231 of constant-temperature liquid water 23, The SZ gas outlet 72 that intensification humidifying chamber 21 connects with ZS trachea 63 is higher than the liquid level 231 of constant-temperature liquid water 23, liquid level The height of 231 is more than 2 times less than the height of 1/2 times of intensification humidifying chamber 21, the height of first surface heater 223 bottom The height of liquid level 231, the height on second surface heater 243 top is less than the height of 1/2 times of liquid level 231, the first table The temperature of face heater 223 is higher than the temperature of second surface heater 243；The length of acoustic waveguide tube 311 is more than or equal to The wavelength of 1/2 standing wave, the port that left acoustic waveguide tube 3111 is connected with ZS trachea 63 is ZZ air inlet 73, ZZ air inlet The distance of mouth 73 and entrant sound choke impermeable film 34 is less than the wavelength of 1/2 standing wave, left acoustic waveguide tube 3111 and SZ trachea 64 ports being connected are ZS gas outlet 74, and the distance of ZS gas outlet 74 and reflecting curtain 312 is less than the ripple of 1/2 standing wave Long, entrant sound choke impermeable film 34 is more than the wavelength of 1/8 standing wave and less than 3/2 standing wave with the distance of punching dividing plate 313 Wavelength, the bottom of left acoustic waveguide tube 3111 is higher than the top of cistern 35.
Described first energy source of supply the 221, second energy source of supply the 241, the 3rd energy source of supply 421 can add with electricity consumption Heat realizes.
In described strong sound standing wave generating assembly 31, described wire 316, signal generator 317 and speaker 318 composition close Close loop；Described acoustic waveguide tube 311, through hole 314 and cavity 315 are cylinder, and described through hole 314 is positioned at punching The center of dividing plate 313, the diameter of described acoustic waveguide tube 311 is more than the diameter of through hole 314, described acoustic waveguide tube 311 Diameter is less than the wavelength of 1/4 standing wave, and the diameter of described through hole 314 is less than the diameter of cavity 315；Described reflecting curtain 312, The center of acoustic waveguide tube 311, punching dividing plate 313, cavity 315 and speaker 318 is gone here and there on same level axis successively Joint group becomes the acoustic resonance cavity closed, at the sky that reflecting curtain 317, acoustic waveguide tube 311 and punching dividing plate 313 are formed The strong sound standing wave of interior generation；Half envelope of described through hole 314, punching dividing plate 313, cavity 315 and speaker 318 composition Close the resonant frequency f of space structure 80Expression formula is:
In formula, c is the velocity of sound, dnFor the diameter of through hole 314, lnFor the length of through hole 314, dtStraight for cavity 315 Footpath, ltLength for cavity 315；
Described through hole 314 and the length of cavity 315 and diameter are respectively less than the wavelength of standing wave；Certain of described acoustic waveguide tube 311 First order resonance frequency and resonant frequency f0, the output signal frequency of signal generator 317, speaker 318 output sound wave Frequency equal.
Process and the principle of sound standing wave generation is by force: the little amplitude acoustic wave that speaker 318 produces drives hemi-closure space knot Air in structure 8 synchronizes to expand/shrink vibration, makes the air column in through hole 314 produce strong reciprocating motion, to acoustic duct Pipe 3111 radiates big amplitude acoustic wave, produces in the acoustic waveguide tube 311 between reflecting curtain 312 and punching dividing plate 313 Strong sound standing wave.
As it is shown on figure 3, reduce the technical process of airborne suspended particulate for utilizing humidification and condensation to bear water, wherein: T1 table Show and be suspended the low water pollution sky after particulate matter R2 pollutes with relatively higher suspension particle concentration and low water vapour molecule content Gas, T2 represents the high water contamination air of high water vapor molecule content, high temperature and higher suspension particle concentration, and T3 represents low The low temperature pure air of water vapour molecule content, low temperature and low suspended particulate matter concentration, T4 represents low water contaminated air T1 carries out heat temperature raising, and T5 represents makes aqueous water surface evaporation realize low water contaminated air T1 by heating aqueous water Evaporation humidification, T6 represents external source cooling to discrete interval of high water contamination air T4, and T7 represents and stays The acceleration of little water droplet is formed and becomes big effect by ripple, and T8 represents the external heat source heat temperature raising to low temperature pure air T7.
As shown in Figure 4, the Simple process process of airborne suspended particulate is reduced for utilizing humidification and condensation to bear water, wherein: S1 represents from the indoor 5 low water contaminated air T1 of introducing；S2 represents low water contaminated air T1 heated intensification T4 and evaporation High water contamination air T2 is become after humidification T5；S3 represent high water contamination air T2 in strong standing wave environment through discrete interval The T6 that cools after become low temperature pure air T3, the steam in high water contamination air T2 divides under cryogenic Son is condensed into little water droplet with suspended particulate substance for the nuclei of condensation, by standing wave, acceleration formation and the change of little water droplet is acted on greatly T7 Form big water droplet, be deposited on the inner surface of left acoustic waveguide tube 3111, flow in cistern 35；S4 represents that low temperature is clean Air T3 heated intensification T4, when temperature and indoor air temperature quite after send indoor 5 back to.Wherein, heat temperature raising T2 Mode be dry type mediate contact heating, the mode of evaporation humidification T3 is less than the liquid surface evaporation of high-temperature water of boiling temperature.
Based on above description, the present invention utilizes humidification and condensation to bear water implementation process and the principle reducing airborne suspended particulate For: the low water being suspended Particulate Pollution being evenly distributed in pure air R3 for suspended particulate substance R2 pollutes sky Gas T1, introduces the low water contaminated air T1 with relatively higher suspension particle concentration through S1 process, rises through the heating of S2 process Temperature T4 and humidify T5 with the evaporation of aqueous water liquid surface evaporation and add a large amount of water vapour molecule R1 in low water contaminated air T1, Form high water vapor molecule content, high temperature, the high water contamination air T2 of higher suspension particle concentration, during S3 The T6 that cools of discrete interval, axially produces the thermograde of Discrete Distribution at acoustic waveguide tube, is formed in the axial direction The setting strength of fluctuations, on the one hand, in high water contamination air T2, equally distributed water vapour molecule is to be uniformly distributed Suspended particulate substance at high water contamination air T2 be nuclei of condensation Spontaneous Condensation be to be evenly distributed in high water contamination air T2 The little water droplet R51 suspended, a large amount of little water droplets that suspend that composition total surface area is the biggest, it is fully contacted fusion and is not coagulated by steam The suspended particulate substance of knot, increases the suspended particulate substance suspended in little water droplet, reduces the suspension in high water contamination air T2 Grain thing, becomes larger along with the little water droplet of suspension that is carried out continuously condensed simultaneously, and suspending contacts with each other between little water droplet is fused to The big water droplet suspended, the suspension big water droplet R52 of enough quality carries out settling towards acoustic waveguide tube wall under gravity Directed movement, and in infall process, contact and merge the suspended particulate substance that do not condensed by water vapour molecule and other hangs Swim to drip, on the other hand, under the effect of intense standing wave field, the difference in size of the acoustic pressure spatial distribution of air in stationary field Bring temperature level difference, accelerate the water vapour molecule Spontaneous Condensation process with suspended particulate substance as the nuclei of condensation, acoustic radiation force Gas molecule in air, suspended particulate substance, suspension water droplet are produced directional migration effect, water vapour molecule and suspension The touch opportunity of grain thing increases, and water vapour molecule increases, between size suspension water droplet around the rate of setting of suspended particulate substance Contact merge chance increase, suspension water droplet and not by between the suspended particulate substance of steam coagulation contact merge chance increase Many, water droplet becomes speed that is big and that be deposited in acoustic waveguide tube wall and accelerates, and meanwhile, the existence of thermograde can make in air Gas molecule, suspended particulate substance, suspension water droplet are by the directed driven power from high temperature to low temperature or from low temperature to high temperature and produce Raw corresponding migration and scavenging action, further omnibearing acceleration removes the suspended particulate substance introduced in contaminated air.
It is illustrated in figure 9 a case of the air-treatment of said process, is 16 DEG C for condition of normal pressure following table testing temperature Relative humidity be 45% indoor pollution air (corresponding air condition point is: indoor point) enter in intensification humidifying chamber 21 Row heats up, and (corresponding air handling process is humidification: first by wet points such as indoor point sensings, then by waiting wet point sensing to add wet point Process), reaching 40 DEG C of relative humiditys of table testing temperature is 85% after (corresponding air condition point is: add wet point), enters and produces Carrying out equivalence chilling temperature in the raw left acoustic waveguide tube 3111 that maximum sound pressure is 80Pa is 4 DEG C of (corresponding air condition points For dehumidifying point) drastically cooling (corresponding air handling process is: the process by adding wet point and point to dehumidifying point), water steams The liquefaction formation of edema caused by disorder of QI and the big water droplet grown up enter through water pipe 36 after acoustic waveguide tube internal face with precipitate suspended particles Cistern 35, the low temperature pure air T3 of formation be heated in firing chamber 41 16 DEG C (corresponding air handling process is: Pointed to a process for indoor point by dehumidifying point) after send indoor back to.
It is the amendment case of a case of the air-treatment of said process as shown in Figure 10, condition of normal pressure following table is surveyed Temperature be 16 DEG C of relative humiditys be 45% indoor pollution air (corresponding air condition point is: indoor point) add in intensification In moist chamber 21 (temperature of first surface heater 223 is 40 DEG C, and the temperature of second surface heater 243 is 35 DEG C) Carrying out heating up, (corresponding air handling process is humidification: first by wet points such as indoor point sensings, then by waiting wet point sensing to add wet point Process), reaching 40 DEG C of relative humiditys of table testing temperature is 85% after (corresponding air condition point is: add wet point), enters Carrying out equivalence chilling temperature in the left acoustic waveguide tube 3111 that maximum sound pressure is 80Pa produced is 10 DEG C of (corresponding air conditions Point is: dehumidifying point) drastically cooling (corresponding air handling process is: the process by adding wet point and point to dehumidifying point), water Vapour molecule liquefaction formation and the big water droplet grown up enter through water pipe 36 after acoustic waveguide tube internal face with precipitate suspended particles Enter cistern 35,10 DEG C of low temperature pure air T3 of formation through constant enthalpy dehumidification process (corresponding air handling process is: by Dehumidifying point points to a process for indoor point) temperature sends indoor back to after reaching 16 DEG C；Described constant enthalpy dehumidification process instead of and heating up Heating process in room 41.
In order to reduce energy loss, improving capacity usage ratio, first energy source of supply the 221, second energy described above supplies The part energy answering the available low-temperature receiver 323 in part energy source of source 241 or the 3rd energy source of supply 421 replaces, i.e. Utilize existing backheat treatment technology.
In order to reduce energy loss, improving capacity usage ratio, first energy source of supply the 221, second energy described above supplies Answer the Cooling and Heat Source generation that source the 241, the 3rd energy source of supply 421 and low-temperature receiver 323 can produce by refrigeration unit or source pump Replace, it is also possible to replace with " used heat " in industry or life and " useless cold ".
In order to produce water vapour molecule as much as possible during S2, intensification humidifying chamber 21 can be implemented decompression system System, reduces the boiling temperature of aqueous water, and the hydrone reducing aqueous water surface enters the resistance of air, makes more water steam Edema caused by disorder of QI enters air from aqueous water.
In order to produce water droplet as much as possible during S3, acoustic waveguide tube can be implemented pressure charging system, make more Water vapour molecule is condensed into water droplet.
The technology utilizing humidification and condensation to bear water reduction airborne suspended particulate described above is equally applicable to for industry and combustion The suspended particulate substance burning discharge waste gas is removed.Such as, the flue gas first produced burning carries out increasing the place of water vapour molecule Reason process, then after the promotion that cools through discrete interval bears water system and liquid water collection system, play composition with " big Gas rainfall " be pattern feature high-efficient cleaning smoke abatement gas in the method for suspended particulate substance.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also Should be regarded as protection scope of the present invention.
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| CN201510183767.7A CN104906913B (en) | 2015-04-17 | 2015-04-17 | A kind of method and device utilizing humidification and condensation to bear water reduction airborne suspended particulate |
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| CN106121777B (en) * | 2016-05-24 | 2018-07-06 | 东南大学 | A kind of Fractions of Diesel Engine Exhaust Particulates pollutant catabolic gene devices and methods therefor |
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| CN201105202Y (en) * | 2007-09-14 | 2008-08-27 | 东南大学 | Device for synergetic removing fine grains in flue gas wet desulfurization |
| CN100594051C (en) * | 2007-10-26 | 2010-03-17 | 东南大学 | Method of removing PM2.5 and gaseous pollutant using steam phase transition and device thereof |
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