CN104906913A - Method for reducing suspension particles in air by using humidification water condensation, and apparatus thereof - Google Patents
Method for reducing suspension particles in air by using humidification water condensation, and apparatus thereof Download PDFInfo
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Abstract
The invention discloses a method for reducing suspension particles in air by using humidification water condensation, and an apparatus thereof. Polluted air contains uniformly mixed water vapor molecules, suspension particles and clean air, the polluted air undergoes discrete spaced engineering cooling to excite the water vapor molecules in the polluted air condense with the suspension particles as condensation nuclei in order to form suspension particle-containing water droplets, the water droplets comprise small water droplets and large water droplets, the small water droplets growth under the action of outside force to become large water droplets, and the large water droplets are separated from the polluted air under the action of outside force in order to form clean air. The suspension particles and the water vapor molecules are uniformly distributed in the polluted air, so the quantity of the liquid drops formed after liquefaction of the water vapor molecules is large, the specific surface area is large, the dimensions of initial liquid droplets are small enough, the liquid droplets are uniformly distributed, and the suspension particle removal efficiency is very high.
Description
Technical field
The present invention relates to a kind of method and the device that reduce airborne suspended particulate, especially to the suspended particulate substance (as PM2.5) in room air, be specifically related to utilize humidification and condensation to bear water the technology reducing airborne suspended particulate.
Background technology
Suspended particulate substance PM (as PM2.5, PM10) has become the main cause of atmosphere pollution, directly endangers indoor air quality, needs the suspended particles in room object height effect clearance technique that invention is new badly.The suspended particulate in strainer filtering room air is utilized to be one of suspended particulate substance sweep-out method of mainly using of present air clean system.In the Long-Time Service process of filter screen, filter screen can accumulate the suspended particulate substance filtered out from air, need to regularly replace filter screen or clean, if the long-term humidity of residing environment can make filter screen breed bacteria and then bring new air pollution problem inside rooms, harm health of people.Water curtain sprinkling air can make suspended particulate substance and spray water droplet surface contact also merge in suspension water droplet, and then plays the effect reducing suspended particulate substance in air.Suspension water droplet is less, and the total surface area of the suspension water droplet that the unit consumption water yield is formed is larger, can merge the content absorbing suspended particulate substance in air more.The suspension little water droplet quantity produced due to water curtain sprinkling and size limited, the size of the little water droplet that suspends can not be too little, and the total surface area of suspension water droplet that the unit consumption water yield is formed can not be very large.If strengthen the elimination effect of suspended particulate substance, need to increase water spray or spraying intensity.The former can consume the too much water yield, and the latter can consume too much mechanical power.Whether in addition, due to the poly-loose property of spraying, make to spray into the water droplet in air and evenly cannot ensure with the contact of air, the suspended particulate substance elimination effect difference of diverse location obviously, hinders the realization of best elimination efficiency.The little water droplet produced due to spray can form new suspended particulate substance, if the mineral content in spray water source is too much, the suspension water droplet containing high concentration mineral content can cause the air-polluting new problem of aggravation suspended particulate.Filter screen all belongs to the passive removing of suspended particulate substance to the filtration of suspended particulate substance and water droplet to the fusion of suspended particulate substance.
Generally speaking, atmospheric environment is after rainfall (as heavy rain heavy rain etc.), and in air, the quantity of suspended particulate can sharply reduce.In upper atmosphere, because damp atmosphere and cold air meet, the water vapour molecule in air spontaneous with small suspended particulate substance for the liquefaction that the nuclei of condensation are spontaneous is little water droplet.Along with carrying out further of steam liquefaction, little water droplet gradually becomes large water droplet, or the contacting with each other fusion between the water droplet of high-altitude forms large water droplet gradually.The flood of the enough quality formed drips under gravity, is deposited in ground.Suspended particulate substance on the one hand in air drops to ground with the form of the nuclei of condensation with water droplet, realizes removing from air; On the other hand, water droplet contacts with the suspended particulate substance in air in the process on landing ground, and contact particle and merge water droplets, drop to ground with water droplet, plays the effect of removing suspended particulate substance in air.Obviously reduce according to the suspended particulate matter concentration in air after rainfall and form the feature of the air quality of " excellent ", this with " atmospheric precipitation " the airborne suspended particulate sweep-out method that is pattern feature in removing air in suspended particulate tool have an enormous advantage.
When the air containing suspended particulate substance moves in the standing-wave sound field environment with thermograde, suspended particulate substance is subject to the comprehensive function of Brownian movement power, inertia force, gravity, sound power and thermograde.The effect to suspended particulate of Brownian movement, inertia and gravity exists all the time, not easily regulable control; And sound and thermograde can have controlled directed driven power by regulating outside applying situation to suspended particulate formation, and then other active force unmanageable that neutral buoyancy particle is subject to.After suitable controlled active force and uncontrollable reaction force balance, suspended particulate can directed movement in atmosphere.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides and a kind ofly utilize humidification and condensation to bear water to reduce the method for airborne suspended particulate and device, first in contaminated air, water vapour molecule is added, lowered the temperature by the engineering of discrete interval again, condensation promotes that water vapour molecule liquefaction bears water to catch suspended particulate substance, external action finally by sound wave and thermograde impels little water droplet to grow up and sedimentation, 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 humidification and condensation that utilizes bears water the method reducing airborne suspended particulate, contaminated air R4 comprises mixed uniformly water vapour molecule R1, suspended particulate substance R2 and pure air R3, contaminated air R4 is carried out to the engineering cooling of discrete interval, excite the water vapour molecule R1 in contaminated air R4 with suspended particulate substance R2 for the nuclei of condensation are condensed into water droplet R5 containing suspended particulate substance R2, water droplet R5 is divided into little water droplet R51 and large water droplet R52, under external force R6 effect, little water droplet R51 grows up for large water droplet R52, under external force R6 effect, large water droplet R52 isolates from contaminated air R4, form pure air R3, external force R6 comprises the acting in conjunction of Brownian movement power R61, inertia force R62, gravity R63, sound power R64 and thermograde R65.
Utilize humidification and condensation to bear water the device reducing airborne suspended particulate, comprise bleed machine, intensification humidification assembly, strong sound standing wave promotion condensation except water assembly, intensification heating component, tracheae assembly and insulation material;
Described intensification humidification assembly comprises intensification humidifying chamber, the first air heater, constant-temperature liquid water and water heater, and constant-temperature liquid water is placed in intensification humidifying chamber; First air heater comprises the first energy source of supply and the first surface heater that are connected into loop by the first energy channel, and wherein first surface heater is positioned at intensification humidifying chamber, and is positioned at constant-temperature liquid water ullage; Water heater comprises the second energy source of supply and the second surface heater that are connected into loop by the second energy channel, and 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 that condensation removes water assembly and comprises strong sound standing wave generating assembly, cooling package, heat-insulation layer, entrant sound choke impermeable film, cistern and water pipe; Described strong sound standing wave generating assembly comprises acoustic waveguide tube, reflecting curtain, punching dividing plate, cavity, signal generator and loudspeaker, and signal generator is connected with loudspeaker by wire; The right-hand member of acoustic waveguide tube is provided with punching dividing plate, the left end of acoustic waveguide tube is provided with reflecting curtain, entrant sound choke impermeable film is arranged on antinode or the node position of acoustic waveguide tube, by entrant sound choke impermeable film, acoustic waveguide tube is divided into right acoustic waveguide tube and left acoustic waveguide tube two parts; Punching dividing plate is provided with through hole, the right-hand member of cavity covers through hole, the horn mouth of loudspeaker covers the right-hand member of cavity, the hemi-closure space structure that punching dividing plate, cavity are connected only by through hole with the external world with loudspeaker composition, and this hemi-closure space structure belongs to Helmholtz resonator structure; Described cooling package comprises high thermoconductivity filler, spiral Surface cooling coil and low-temperature receiver, spiral Surface cooling coil becomes loop with low-temperature receiver by cooling Tandem, be centered around to spiral Surface cooling coil spiral spacer on left acoustic waveguide tube outer wall, high thermoconductivity filler covers on left acoustic waveguide tube outer wall, fills the unlapped region of spiral Surface cooling coil; The horizontal direction that the thermal resistance of described high thermoconductivity filler meets in the horizontal cross sectional area not covering spiral coil that is centered around on left acoustic waveguide tube between adjoining spiral coil pipe has thermograde; The whole outer surface of the coated acoustic waveguide tube of described heat-insulation layer and cavity; The bottom of described left acoustic waveguide tube is communicated with cistern by water pipe; Described acoustic waveguide tube horizontal positioned;
Described intensification heating component comprises intensification room and the 3rd air heater, and the 3rd air heater comprises the 3rd energy source of supply and the 3rd surface heater that are connected into loop by the 3rd energy channel, and wherein the 3rd surface heater is positioned at indoor of heating up;
The SS tracheae that described tracheae assembly comprises and is communicated with bleed machine and indoor YS tracheae, is communicated with the SY tracheae of intensification humidifying chamber and bleed machine, is communicated with left acoustic waveguide tube and intensification room interior with the ZS tracheae of intensification humidifying chamber, the SZ tracheae being communicated with intensification room and left acoustic waveguide tube and communication chamber;
Described insulation material covers the outside of tracheae assembly, bleed machine, intensification humidifying chamber and intensification room;
The SS air inlet that intensification humidifying chamber is communicated with SY tracheae is higher than the liquid level of constant-temperature liquid water, the SZ gas outlet that intensification humidifying chamber is communicated with ZS tracheae is higher than the liquid level of constant-temperature liquid water, the height of liquid level is less than the height of 1/2 times of intensification humidifying chamber, the height of first surface heater bottom is greater than the height of 2 times of liquid levels, the height on second surface heater top is less than the height of 1/2 times of liquid level, and the temperature of first surface heater is higher than the temperature of second surface heater; The length of acoustic waveguide tube is more than or equal to the wavelength of 1/2 standing wave, the port that left acoustic waveguide tube is connected with ZS tracheae is ZZ air inlet, the distance of ZZ air inlet and entrant sound choke impermeable film is less than the wavelength of 1/2 standing wave, the port that left acoustic waveguide tube is connected with SZ tracheae is ZS gas outlet, the distance of ZS gas outlet and reflecting curtain is less than the wavelength of 1/2 standing wave, entrant sound choke impermeable film is greater than the wavelength of 1/8 standing wave with the distance of punching dividing plate and is less than the wavelength of 3/2 standing wave, and 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 loudspeaker composition closed-loop path; Described acoustic waveguide tube, through hole and cavity are cylindrical, described through hole is positioned at the center of punching dividing plate, the diameter of described acoustic waveguide tube is greater than the diameter of through hole, and 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 less than the diameter of cavity; The center of described reflecting curtain, acoustic waveguide tube, punching dividing plate, cavity and loudspeaker is composed in series closed acoustic resonance cavity successively on same level axis, in the space that reflecting curtain, acoustic waveguide tube and punching dividing plate are formed, produce strong sound standing wave; The resonant frequency f of the hemi-closure space structure of described through hole, punching dividing plate, cavity and loudspeaker composition
0expression formula is:
In formula, c is the velocity of sound, d
nfor the diameter of through hole, l
nfor the length of through hole, d
tfor the diameter of cavity, l
tfor the length of cavity;
The length of described through hole and cavity and diameter are all less than the wavelength of standing wave; Certain first order resonance frequency of described acoustic waveguide tube and resonant frequency f
0, the sound wave frequency that exports of the output signal frequency of signal generator, loudspeaker is equal.
Beneficial effect: provided by the inventionly utilize humidification and condensation to bear water to reduce the method for airborne suspended particulate and device, utilize when the cooling of discrete interval, the water vapour molecule be mixed in contaminated air is that the nuclei of condensation are condensed into little water droplet with suspended particulate substance, under external force, suspended particulate substance becomes large water droplet and sedimentation along with little water droplet, realize suspended particulate substance to remove from contaminated air, play the effect that suspended particulate substance in air is removed in minimizing even completely; The present invention is relative to prior art, and tool has the following advantages:
1, the process relying on the liquefaction of vaporous water molecule to remove suspended particulate in air does not need filter screen, and whole device can make of such as stainless steel, glass or lucite, and clean environment, does not exist the problem using filter screen to bring;
2, the random Brownian movement utilizing sound standing wave and the controlled directional migration effect neutral buoyancy particle of thermograde to suspended particulate substance to be simultaneously subject to, inertia and Action of Gravity Field realize the removing to suspended particulate substance in air;
3, the thermograde that the engineering cooling of discrete interval axially produces at acoustic waveguide tube makes setting strength form the discrete distribution of fluctuations in the axial direction, high shredded tobacco for water pipes gas is avoided to form " approximate sound insulation curtain wall " impact on sound standing wave field at the too much water droplet produced that acutely condenses near entrance location on the one hand, what the condensation process on the other hand carrying out approaches uniformity at acoustic waveguide tube axis direction made the sound standing wave of acoustic waveguide tube axially in whole space be similar to equal extent participates in the process of condensing water droplet, improves the utilization rate of sound standing wave field;
4, because the suspended particulate substance in air, water vapour molecule are evenly distributed in contaminated air, the amount of droplets that water vapour molecule post liquefaction is formed is many, and total surface area is large, and initial droplet sizes can be enough little, be evenly distributed, the efficiency that suspended particulate substance is removed is very high;
5, due to the invigoration effect of sound field, droplet is faster to the conversion of large drop, and drop is formed faster, and suspended particulate substance is faster with the sedimentation of drop;
6, adopt surface evaporation to air wetting, the little water droplet avoiding aqueous water to be directly torn generation enters air and then causes the mineral matter in water to enter air and forms new suspended particulate pollution sources;
7, utilize the acoustic pressure amplification to resonant frequency sound wave of Helmholtz resonator, realize the transformation of weak sound wave to strong sound wave, realize utilizing small-power transducer also can produce the effect of high strength standing wave.
Accompanying drawing explanation
Fig. 1 is method flow schematic diagram of the present invention;
Fig. 2 is a kind of device for carrying out said schematic diagram of the present invention;
Fig. 3 is the technical process schematic diagram of a kind of device for carrying out said of the present invention;
Fig. 4 is the process simplification schematic diagram of a kind of device for carrying out said of the present invention;
Fig. 5 is the strong sound standing wave generating assembly schematic diagram of a kind of device for carrying out said of the present invention;
Fig. 6 is the acoustic waveguide tube schematic diagram of a kind of device for carrying out said of the present invention;
Fig. 7 is the cooling package schematic diagram of a kind of device for carrying out said of the present invention;
Fig. 8 is the tracheae assembly connection diagram of a kind of device for carrying out said of the present invention;
Fig. 9 is the present invention carries out removing the air handling process of a suspended particulate substance case to contaminated air;
Figure 10 is the present invention carries out removing the air handling process of a suspended particulate substance amendment case 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 large 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 condensation that under the engineering cooling R7 effect of R8-discrete interval, water vapour molecule R1 is the nuclei of condensation with suspended particulate substance R2, what the lower little water droplet R51 of R9-external force R6 effect changed to large water droplet R52 grows up, the lower large water droplet R52 of R10-external force R6 effect is separated with pure air R3's,
1-bleed machine, 2-intensification humidification assembly, 21-intensification humidifying chamber, 22-first air heater, 221-first energy source of supply, 222-first energy channel, 223-first surface heater, 23-constant-temperature liquid water, 24-water heater, 241-second energy source of supply, 242-second energy channel, 243-second surface heater, the strong sound standing wave of 3-promotes that condensation is except water assembly, the strong sound standing wave generating assembly of 31-, 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, 314-through hole, 315-cavity, 316-wire, 317-signal generator, 318-loudspeaker, 32-cooling package, 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-intensification heating component, 41-intensification room, 42-second air heater, 421-the 3rd energy source of supply, 422-the 3rd energy channel, 423-the 3rd surface heater, 5-is indoor, 6-tracheae assembly, 61-YS tracheae, 62-SY tracheae, 63-ZS tracheae, 64-SZ tracheae, 65-SS tracheae, 71-SS air inlet, 72-SZ gas outlet, 73-ZZ air inlet, 74-ZS gas outlet, 8-hemi-closure space structure,
The low water pollutions air of T1-, T2-height water pollutions air, T3-low temperature pure air, T4-heat temperature raising, T5-evaporates humidification, cooling of T6-discrete interval, T7-standing wave is formed the acceleration of little water droplet and becomes large effect, and T8-external heat source is to the heat temperature raising of low temperature pure air T3;
S1-5 introduces low water pollutions air T1 indoor, S2-low water pollutions air T1 becomes high water pollutions air T2 after heat temperature raising T4 and evaporation humidification T5, S3-height water pollutions air T2 becomes low temperature pure air T3 in strong standing wave environment after the T6 that cools of discrete interval, S4-low temperature pure air T3 through heat temperature raising T4, when temperature and indoor air temperature quite after send indoor 5 back to.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of humidification and condensation that utilizes and bear water the method reducing airborne suspended particulate, contaminated air R4 comprises mixed uniformly water vapour molecule R1, suspended particulate substance R2 and pure air R3, contaminated air R4 is carried out to the engineering cooling of discrete interval, excite the water vapour molecule R1 in contaminated air R4 with suspended particulate substance R2 for the nuclei of condensation are condensed into water droplet R5 containing suspended particulate substance R2, water droplet R5 is divided into little water droplet R51 and large water droplet R52, under external force R6 effect, little water droplet R51 grows up for large water droplet R52, under external force R6 effect, large water droplet R52 isolates from contaminated air R4, form pure air R3, external force R6 comprises the acting in conjunction of Brownian movement power R61, inertia force R62, gravity R63, sound power R64 and thermograde R65.
Be illustrated in figure 2 a kind of humidification and condensation that utilizes and bear water the device reducing airborne suspended particulate, comprise bleed machine 1, intensification humidification assembly 2, strong sound standing wave promotion condensation except water assembly 3, intensification heating component 4, tracheae assembly 6 and insulation material.
Described intensification humidification assembly 2 comprises intensification humidifying chamber 21, first air heater 22, constant-temperature liquid water 23 and water heater 24, and constant-temperature liquid water 23 is placed in intensification humidifying chamber 21; First air heater 22 comprises the first energy source of supply 221 and the first surface heater 223 that are connected into loop by the first energy channel 222, and wherein first surface heater 223 is positioned at intensification humidifying chamber 21, and is positioned at above constant-temperature liquid water 23 liquid level 231; Water heater 24 comprises the second energy source of supply 241 and the second surface heater 243 that are connected into loop by the second energy channel 242, and second surface heater 243 is positioned at intensification humidifying chamber 21, and is 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 that condensation removes water assembly 3 and comprises strong sound standing wave generating assembly 31, cooling package 32, heat-insulation layer 33, entrant sound choke impermeable film 34, cistern 35 and water pipe 36; Described strong sound standing wave generating assembly 31 comprises acoustic waveguide tube 311, reflecting curtain 312, punching dividing plate 313, cavity 315, signal generator 317 and loudspeaker 318, and signal generator 317 is connected with loudspeaker 318 by wire 316; The right-hand member of acoustic waveguide tube 311 is provided with punching dividing plate 313, the left end of 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, acoustic waveguide tube 311 is divided into right acoustic waveguide tube 3112 and left acoustic waveguide tube 3111 two parts; Punching dividing plate 313 is provided with through hole 314, the right-hand member of cavity 315 covers through hole 314, the horn mouth of loudspeaker 318 covers the right-hand member of cavity 315, punching dividing plate 313, cavity 315 and loudspeaker 318 form the hemi-closure space structure 8 be connected only by through hole 314 with the external world, and this hemi-closure space structure 8 belongs to Helmholtz resonator structure; Described cooling package 32 comprises 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 connected into loop by cooling passage 324, be centered around to spiral Surface cooling coil 322 spiral spacer on left acoustic waveguide tube 3111 outer wall, high thermoconductivity filler 321 covers on left acoustic waveguide tube 3111 outer wall, fills the unlapped region of spiral Surface cooling coil 322; The horizontal direction that the thermal resistance of described high thermoconductivity filler 321 meets between the adjoining spiral coil pipe in the horizontal cross sectional area not covering spiral coil 322 that is centered around on left acoustic waveguide tube 3111 has thermograde; The whole outer surface of the coated acoustic waveguide tube of described heat-insulation layer 33 311 and cavity 315; The bottom of described left acoustic waveguide tube 3111 is communicated with cistern 35 by water pipe 36; Described acoustic waveguide tube 311 horizontal positioned.
Described intensification heating component 4 comprises intensification room 41 and the 3rd air heater 42,3rd air heater 42 comprises the 3rd energy source of supply 421 and the 3rd surface heater 423 that are connected into loop by the 3rd energy channel 422, and wherein the 3rd surface heater 423 is positioned at intensification room 41.
As shown in Figure 8, described tracheae assembly 6 comprise be communicated with bleed machine 1 with indoor 5 YS tracheae 61, is communicated with intensification humidifying chamber 21 and bleed machine 1 SY tracheae 62, be communicated with left acoustic waveguide tube 3111 with in the ZS tracheae 63 of intensification humidifying chamber 21, the SZ tracheae 64 being communicated with intensification room 41 and left acoustic waveguide tube 3111 and communication chamber 5 and the SS tracheae 65 of intensification room 41.
Described insulation material covers the outside of tracheae assembly 6, bleed machine 1, intensification humidifying chamber 21 and intensification room 41.
The SS air inlet 71 that intensification humidifying chamber 21 is communicated with SY tracheae 62 is higher than the liquid level 231 of constant-temperature liquid water 23, the SZ gas outlet 72 that intensification humidifying chamber 21 is communicated with ZS tracheae 63 is higher than the liquid level 231 of constant-temperature liquid water 23, the height of liquid level 231 is less than the height of 1/2 times of intensification humidifying chamber 21, the height of first surface heater 223 bottom is greater than the height of 2 times of liquid levels 231, the height on second surface heater 243 top is less than the height of 1/2 times of liquid level 231, and the temperature of first surface 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 tracheae 63 is ZZ air inlet 73, ZZ air inlet 73 is less than the wavelength of 1/2 standing wave with the distance of entrant sound choke impermeable film 34, the port that left acoustic waveguide tube 3111 is connected with SZ tracheae 64 is ZS gas outlet 74, ZS gas outlet 74 is less than the wavelength of 1/2 standing wave with the distance of reflecting curtain 312, entrant sound choke impermeable film 34 and the distance of punching dividing plate 313 are greater than the wavelength of 1/8 standing wave and are less than the wavelength of 3/2 standing wave, the bottom of left acoustic waveguide tube 3111 is higher than the top of cistern 35.
Described first energy source of supply 221, second energy source of supply 241, the 3rd energy source of supply 421 can realize with electrical heating.
In described strong sound standing wave generating assembly 31, described wire 316, signal generator 317 and loudspeaker 318 form closed-loop path; Described acoustic waveguide tube 311, through hole 314 and cavity 315 are cylindrical, described through hole 314 is positioned at the center of punching dividing plate 313, the diameter of described acoustic waveguide tube 311 is greater than the diameter of through hole 314, the diameter of described acoustic waveguide tube 311 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; The center of described reflecting curtain 312, acoustic waveguide tube 311, punching dividing plate 313, cavity 315 and loudspeaker 318 is composed in series closed acoustic resonance cavity successively on same level axis, in the space that reflecting curtain 317, acoustic waveguide tube 311 and punching dividing plate 313 are formed, produce strong sound standing wave; The resonant frequency f of the hemi-closure space structure 8 of described through hole 314, punching dividing plate 313, cavity 315 and loudspeaker 318 composition
0expression formula is:
In formula, c is the velocity of sound, d
nfor the diameter of through hole 314, l
nfor the length of through hole 314, d
tfor the diameter of cavity 315, l
tfor the length of cavity 315;
The length of described through hole 314 and cavity 315 and diameter are all less than the wavelength of standing wave; Certain first order resonance frequency of described acoustic waveguide tube 311 and resonant frequency f
0, the sound wave frequency that exports of the output signal frequency of signal generator 317, loudspeaker 318 is equal.
The process that strong sound standing wave produces and principle are: the little amplitude acoustic wave that loudspeaker 318 produces drives the synchronous expansion/contraction vibration of the air in hemi-closure space structure 8, the air column in through hole 314 is made to produce strong reciprocating motion, to acoustic waveguide tube 3111 radiation large amplitude sound wave, in the acoustic waveguide tube 311 between reflecting curtain 312 and punching dividing plate 313, produce strong sound standing wave.
As shown in Figure 3, the technical process reducing airborne suspended particulate is born water for utilizing humidification and condensation, wherein: T1 represents by the low water pollutions air had after suspended particulate substance R2 pollution compared with higher suspension particle concentration and low water vapour molecule content, T2 represents high water vapor molecule content, the high water pollutions air of high temperature and higher suspension particle concentration, T3 represents low water vapour molecule content, the low temperature pure air of low temperature and low suspended particulate matter concentration, T4 represents and carries out heat temperature raising to low water pollutions air T1, T5 represents makes aqueous water surface evaporation realize evaporation humidification to low water pollutions air T1 by heating liquid water, T6 represents external source cooling to the discrete interval of high water pollutions air T4, T7 represents that standing wave is formed the acceleration of little water droplet and becomes large effect, T8 represents the heat temperature raising of external heat source to low temperature pure air T7.
As shown in Figure 4, for utilizing humidification and condensation to bear water the Simple process process reducing airborne suspended particulate, wherein: S1 represents the low water pollutions air T1 of 5 introducing indoor; S2 represents that low water pollutions air T1 becomes high water pollutions air T2 after heat temperature raising T4 and evaporation humidification T5; S3 represents that high water pollutions air T2 becomes low temperature pure air T3 in strong standing wave environment after the T6 that cools of discrete interval, water vapour molecule under cryogenic in high water pollutions air T2 is that the nuclei of condensation are condensed into little water droplet with suspended particulate substance, by standing wave, large water droplet is formed to the acceleration formation of little water droplet and change large effect T7, be deposited on the inner surface of left acoustic waveguide tube 3111, flow in cistern 35; S4 represents that low temperature pure air T3 is through heat temperature raising T4, when temperature and indoor air temperature quite after send indoor 5 back to.Wherein, the mode of heat temperature raising T2 is dry type mediate contact heating, and the mode of evaporation humidification T3 is the liquid surface evaporation of the high-temperature water lower than boiling temperature.
Based on above description, the present invention utilizes humidification and condensation to bear water to reduce the implementation process of airborne suspended particulate and principle is: suspended particulate substance R2 is evenly distributed on to the low water pollutions air T1 polluted by suspended particulate substance in pure air R3, the low water pollutions air T1 had compared with higher suspension particle concentration is introduced through S1 process, in low water pollutions air T1, a large amount of water vapour molecule R1 is added through S2 process heat temperature raising T4 with the evaporation humidification T5 of aqueous water liquid surface evaporation, form high water vapor molecule content, high temperature, the high water pollutions air T2 of higher suspension particle concentration, the T6 that cools of the discrete interval in S3 process, the thermograde of discrete distribution is axially produced at acoustic waveguide tube, form the setting strength of fluctuations in the axial direction, on the one hand, in high water pollutions air T2 equally distributed water vapour molecule with the suspended particulate substance being evenly distributed on high water pollutions air T2 for nuclei of condensation Spontaneous Condensation is the little water droplet R51 of the suspension be evenly distributed in high water pollutions air T2, the little water droplet of a large amount of suspensions that composition total surface area is very large, abundant contact is merged not by suspended particulate substance that steam condenses, increase the suspended particulate substance suspended in little water droplet, reduce the suspended particulate substance in high water pollutions air T2, simultaneously along with the little water droplet that suspends of carrying out continuously of condensation becomes large gradually, suspending contacts with each other between little water droplet is fused to the large water droplet of suspension, the large water droplet R52 of suspension of enough quality carries out under gravity towards the directed movement of acoustic waveguide tube wall sedimentation, and contact in infall process and merge the suspended particulate substance and other suspension water droplet that are not condensed by water vapour molecule, on the other hand, under the effect of intense standing wave field, in stationary field, the difference in size of the acoustic pressure spatial distribution of air brings temperature level difference, accelerate the Spontaneous Condensation process that water vapour molecule take suspended particulate substance as the nuclei of condensation, acoustic radiation force is to the gas molecule in air, suspended particulate substance, suspension water droplet produces directional migration effect, the touch opportunity of water vapour molecule and suspended particulate substance increases, water vapour molecule increases around the rate of setting of suspended particulate substance, contact between size suspension water droplet is merged chance and is increased, contact between suspension water droplet and the suspended particulate substance do not condensed by steam is merged chance and is increased, water droplet becomes large and is deposited in the speed quickening of acoustic waveguide tube wall, simultaneously, the existence of thermograde can make the gas molecule in air, suspended particulate substance, suspension water droplet is subject to the directed driven power from high temperature to low temperature or from low temperature to high temperature and produces corresponding migration and scavenging action, further omnibearing acceleration removes the suspended particulate substance introduced in contaminated air.
Be illustrated in figure 9 a case of the air-treatment of said process, for condition of normal pressure following table testing temperature to be 16 DEG C of relative humidity be 45% indoor pollution air (corresponding air condition point is: indoor point) in intensification humidifying chamber 21, carry out intensification humidification (corresponding air handling process be: first by wet points such as indoor point sensings, again by waiting wet point to point to the process adding wet point), reaching table testing temperature 40 DEG C of relative humidity is after 85% (corresponding air condition point is: add wet point), the maximum sound pressure entering generation be 80Pa left acoustic waveguide tube 3111 in carry out sharply cooling that equivalent chilling temperature is 4 DEG C (corresponding air condition point is: except wet point) (corresponding air handling process is: point to process except wet point by adding wet point), water vapour molecule liquefaction formation and the large water droplet of growing up enter cistern 35 through water pipe 36 with precipitate suspended particles after acoustic waveguide tube internal face, the low temperature pure air T3 formed sends indoor back to be heated to 16 DEG C (corresponding air handling process is: the process by pointing to indoor point except wet point) in intensification room 41 after.
Be the amendment case of a case of the air-treatment of said process as shown in Figure 10, for condition of normal pressure following table testing temperature to be 16 DEG C of relative humidity be 45% indoor pollution air (corresponding air condition point is: indoor point) at intensification humidifying chamber 21, (temperature of first surface heater 223 is 40 DEG C, the temperature of second surface heater 243 is 35 DEG C) in carry out intensification humidification (corresponding air handling process be: first by wet points such as indoor point sensings, again by waiting wet point to point to the process adding wet point), reaching table testing temperature 40 DEG C of relative humidity is after 85% (corresponding air condition point is: add wet point), the maximum sound pressure entering generation be 80Pa left acoustic waveguide tube 3111 in carry out sharply cooling that equivalent chilling temperature is 10 DEG C (corresponding air condition point is: except wet point) (corresponding air handling process is: point to process except wet point by adding wet point), water vapour molecule liquefaction formation and the large water droplet of growing up enter cistern 35 through water pipe 36 with precipitate suspended particles after acoustic waveguide tube internal face, the 10 DEG C of low temperature pure air T3 formed send indoor through constant enthalpy dehumidification process (corresponding air handling process is: the process by pointing to indoor point except wet point) temperature back to after reaching 16 DEG C, described constant enthalpy dehumidification process instead of the heating process in intensification room 41.
In order to reduce energy loss, improve capacity usage ratio, the originate part energy of available low-temperature receiver 323 of the part energy of the first energy source of supply 221, second energy source of supply 241 described above or the 3rd energy source of supply 421 replaces, and namely utilizes existing backheat treatment technology.
In order to reduce energy loss, improve capacity usage ratio, first energy source of supply 221, second energy source of supply 241 described above, the 3rd energy source of supply 421 and low-temperature receiver 323 can replace by the Cooling and Heat Source that refrigeration unit or source pump produce, and also can replace with " used heat " in industry or life and " useless cold ".
In order to produce water vapour molecule as much as possible in S2 process, depressurized system can be implemented to intensification humidifying chamber 21, reduce the boiling temperature of aqueous water, the hydrone reducing aqueous water surface enters the resistance of air, makes more water vapour molecule enter air from aqueous water.
In order to produce water droplet as much as possible in S3 process, pressure charging system can be implemented to acoustic waveguide tube, making more water vapour molecule be condensed into water droplet.
The technology utilizing humidification and condensation to bear water reduction airborne suspended particulate described above is equally applicable to remove for the suspended particulate substance of industry and burning and exhausting waste gas.Such as, first the flue gas produced burning carries out the processing procedure increasing water vapour molecule, again after the promotion that cools of discrete interval bears water system and liquid water collection system, play formation removes suspended particulate substance in flue gas method with the high-efficient cleaning that " atmospheric precipitation " is pattern feature.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. one kind utilizes humidification and condensation to bear water the method reducing airborne suspended particulate, it is characterized in that: contaminated air R4 comprises mixed uniformly water vapour molecule R1, suspended particulate substance R2 and pure air R3, contaminated air R4 is carried out to the engineering cooling of discrete interval, excite the water vapour molecule R1 in contaminated air R4 with suspended particulate substance R2 for the nuclei of condensation are condensed into water droplet R5 containing suspended particulate substance R2, water droplet R5 is divided into little water droplet R51 and large water droplet R52, under external force R6 effect, little water droplet R51 grows up for large water droplet R52, under external force R6 effect, large water droplet R52 isolates from contaminated air R4, form pure air R3, external force R6 comprises the acting in conjunction of Brownian movement power R61, inertia force R62, gravity R63, sound power R64 and thermograde R65.
2. utilize humidification and condensation to bear water the device reducing airborne suspended particulate, it is characterized in that: comprise bleed machine (1), intensification humidification assembly (2), strong sound standing wave promotion condensation except water assembly (3), intensification heating component (4), tracheae assembly (6) and insulation material;
Described intensification humidification assembly (2) comprises intensification humidifying chamber (21), the first air heater (22), constant-temperature liquid water (23) and water heater (24), and constant-temperature liquid water (23) is placed in intensification humidifying chamber (21); First air heater (22) comprises the first energy source of supply (221) and the first surface heater (223) that are connected into loop by the first energy channel (222), wherein first surface heater (223) is positioned at intensification humidifying chamber (21), and is positioned at constant-temperature liquid water (23) liquid level (231) top; Water heater (24) comprises the second energy source of supply (241) and the second surface heater (243) that are connected into loop by the second energy channel (242), second surface heater (243) is positioned at intensification humidifying chamber (21), and is positioned at constant-temperature liquid water (23) liquid level (231) below;
Described strong sound standing wave promotes that condensation removes water assembly (3) and comprises strong sound standing wave generating assembly (31), cooling package (32), heat-insulation layer (33), entrant sound choke impermeable film (34), cistern (35) and water pipe (36); Described strong sound standing wave generating assembly (31) comprises acoustic waveguide tube (311), reflecting curtain (312), punching dividing plate (313), cavity (315), signal generator (317) and loudspeaker (318), and signal generator (317) is connected with loudspeaker (318) by wire (316); The right-hand member of acoustic waveguide tube (311) is provided with punching dividing plate (313), the left end of 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), acoustic waveguide tube (311) is divided into right acoustic waveguide tube (3112) and left acoustic waveguide tube (3111) two parts; Punching dividing plate (313) is provided with through hole (314), the right-hand member of cavity (315) covers through hole (314), the horn mouth of loudspeaker (318) covers the right-hand member of cavity (315), the hemi-closure space structure (8) that punching dividing plate (313), cavity (315) are connected only by through hole (314) with the external world with loudspeaker (318) composition, this hemi-closure space structure (8) belongs to Helmholtz resonator structure; Described cooling package (32) comprises 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 connected into loop by cooling passage (324), be centered around to spiral Surface cooling coil (322) spiral spacer on left acoustic waveguide tube (3111) outer wall, high thermoconductivity filler (321) covers on left acoustic waveguide tube (3111) outer wall, fills spiral Surface cooling coil (322) unlapped region; The horizontal direction that the thermal resistance of described high thermoconductivity filler (321) meets between the adjoining spiral coil pipe not covering in the horizontal cross sectional area of spiral coil that is centered around on left acoustic waveguide tube (3111) has thermograde; The whole outer surface of described heat-insulation layer (33) coated acoustic waveguide tube (311) and cavity (315); The bottom of described left acoustic waveguide tube (3111) is communicated with cistern (35) by water pipe (36); Described acoustic waveguide tube (311) horizontal positioned;
Described intensification heating component (4) comprises intensification room (41) and the 3rd air heater (42), 3rd air heater (42) comprises the 3rd energy source of supply (421) and the 3rd surface heater (423) that are connected into loop by the 3rd energy channel (422), and wherein the 3rd surface heater (423) is positioned at intensification room (41);
Described tracheae assembly (6) comprises and is communicated with bleed machine (1) and (5) in the YS tracheae (61) of indoor (5), the SY tracheae (62) being communicated with intensification humidifying chamber (21) and bleed machine (1), the ZS tracheae (63) being communicated with left acoustic waveguide tube (3111) and intensification humidifying chamber (21), the SZ tracheae (64) being communicated with intensification room (41) and left acoustic waveguide tube (3111) and the communication chamber SS tracheae (65) with intensification room (41);
Described insulation material covers the outside of tracheae assembly (6), bleed machine (1), intensification humidifying chamber (21) and intensification room (41);
The SS air inlet (71) that intensification humidifying chamber (21) is communicated with SY tracheae (62) is higher than the liquid level (231) of constant-temperature liquid water (23), the SZ gas outlet (72) that intensification humidifying chamber (21) is communicated with ZS tracheae (63) is higher than the liquid level (231) of constant-temperature liquid water (23), the height of liquid level (231) is less than the height of 1/2 times of intensification humidifying chamber (21), the height of first surface heater (223) bottom is greater than the height of 2 times of liquid levels (231), the height on second surface heater (243) top is less than the height of 1/2 times of liquid level (231), the temperature of first surface 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 tracheae (63) is ZZ air inlet (73), ZZ air inlet (73) is less than the wavelength of 1/2 standing wave with the distance of entrant sound choke impermeable film (34), the port that left acoustic waveguide tube (3111) is connected with SZ tracheae (64) is ZS gas outlet (74), ZS gas outlet (74) is less than the wavelength of 1/2 standing wave with the distance of reflecting curtain (312), entrant sound choke impermeable film (34) and the distance of punching dividing plate (313) are greater than the wavelength of 1/8 standing wave and are less than the wavelength of 3/2 standing wave, the bottom of left acoustic waveguide tube (3111) is higher than the top of cistern (35).
3. the humidification and condensation that utilizes according to claim 2 bears water the device reducing airborne suspended particulate, it is characterized in that: in described strong sound standing wave generating assembly (31), described wire (316), signal generator (317) and loudspeaker (318) composition closed-loop path; Described acoustic waveguide tube (311), through hole (314) and cavity (315) are cylindrical, described through hole (314) is positioned at the center of punching dividing plate (313), the diameter of described acoustic waveguide tube (311) is greater than the diameter of through hole (314), the diameter of described acoustic waveguide tube (311) 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); The center of described reflecting curtain (312), acoustic waveguide tube (311), punch dividing plate (313), cavity (315) and loudspeaker (318) is composed in series closed acoustic resonance cavity successively on same level axis, in the space that reflecting curtain (317), acoustic waveguide tube (311) and punching dividing plate (313) are formed, produce strong sound standing wave; The resonant frequency f of the hemi-closure space structure (8) that described through hole (314), punching dividing plate (313), cavity (315) and loudspeaker (318) form
0expression formula is:
In formula, c is the velocity of sound, d
nfor the diameter of through hole (314), l
nfor the length of through hole (314), d
tfor the diameter of cavity (315), l
tfor the length of cavity (315);
The length of described through hole (314) and cavity (315) and diameter are all less than the wavelength of standing wave; Certain first order resonance frequency of described acoustic waveguide tube (311) and resonant frequency f
0, the sound wave frequency that exports of the output signal frequency of signal generator (317), loudspeaker (318) is equal.
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| CN108467065A (en) * | 2018-07-06 | 2018-08-31 | 山东重山光电材料股份有限公司 | A kind of freezing trap and its application method for tungsten hexafluoride |
| CN109085188A (en) * | 2018-07-31 | 2018-12-25 | 国政通科技有限公司 | Explosive particle detection device and method |
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