CN103706219B - Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates - Google Patents

Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates Download PDF

Info

Publication number
CN103706219B
CN103706219B CN201310729868.0A CN201310729868A CN103706219B CN 103706219 B CN103706219 B CN 103706219B CN 201310729868 A CN201310729868 A CN 201310729868A CN 103706219 B CN103706219 B CN 103706219B
Authority
CN
China
Prior art keywords
main body
room main
sound
reunion room
spraying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310729868.0A
Other languages
Chinese (zh)
Other versions
CN103706219A (en
Inventor
骆仲泱
周栋
方梦祥
施正伦
王涛
高翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN201310729868.0A priority Critical patent/CN103706219B/en
Publication of CN103706219A publication Critical patent/CN103706219A/en
Application granted granted Critical
Publication of CN103706219B publication Critical patent/CN103706219B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a kind of acoustic agglomeration and combine the devices and methods therefor that spraying synergy removes fine particulates.The top of reunion room main body is provided with compression and drives sound source, compression drives sound source to be connected in turn with power amplifier, signal generator, the upper portion side wall of reunion room main body is provided with gas approach, nozzle is provided with in the top of reunion room main body, nozzle is connected with surge tank, plunger type metering pump, water tank respectively, the lower sides of reunion room main body is provided with air-introduced machine, and the bottom of reunion room main body is provided with sound absorption sponge.The present invention adopts acoustic agglomeration combination spraying synergy to carry out pretreatment to the fine particle in the dust-contained airflows such as coal-burning power plant's smoke evacuation, greatly improve the acoustic agglomeration efficiency of fine particle, in conjunction with follow-up traditional deduster, reach the object of efficient removal PM2.5, thus the discharge of control PM2.5, the sound pressure level needed for method adopting sound wave to combine spraying will be significantly less than and only use acoustic wave methodogy, effectively reduces the energy consumption of acoustic agglomeration.

Description

Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates
Technical field
Relate to the technical field that pollution control equipment manufactures herein, particularly relate to a kind of acoustic agglomeration and combine the devices and methods therefor that spraying synergy removes fine particulates.
Background technology
Coal be China's electric power main fuel source, in a foreseeable future in decades, coal-fired thermal power generation in the power industry of China by long-term dominate.The energy resource structure of this long-term dependence coal fired power generation causes serious environmental pollution, and the flue dust of coal-burning power plant's discharge is one of important sources of pellet in atmospheric environment.The pellet particle (PM2.5) that especially aerodynamic diameter is less than 2.5 microns is the important pollutant affecting China's air quality, it not only affects global climate environment, destroys the ecosystem and history relic, and huge to human health damage.
More existing cleaners, comprise mechanical separator, electrostatic precipitation, bag-type dust etc., according to himself features and application occasion, respectively there are pluses and minuses, although mechanical separator, electrostatic precipitator have higher total efficiency of dust collection, but not high for the removal efficiency of PM2.5, although the higher operating cost of sack cleaner efficiency is comparatively large, pressure drop is also very large.
General acoustic agglomeration technology to the reunion limited efficacy of fine particle, and needs to add sound pressure level to improve reunion efficiency, and add energy consumption, effect neither be obvious especially.The present invention carries out pretreatment in conjunction with the high strong sound wave of low frequency 1400 ~ 2000Hz and spraying system synergy to flue gas, improve the reunion efficiency of fine particle, adopt conventional dust removal devices to remove further the bulky grain after reunion again, thus reach the object of efficient removal PM2.5.And under identical fine particle reunion efficiency term, the sound pressure level needed for method adopting sound wave to combine spraying will be significantly less than the methods such as sound wave that only use, the energy consumption of acoustic agglomeration thus effectively can be reduced.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of acoustic agglomeration combination spraying synergy to remove the devices and methods therefor of fine particulates.
The device that acoustic agglomeration combination spraying synergy removes fine particulates comprises compression driving sound source, reunion room main body, surge tank, plunger type metering pump, nozzle, air-introduced machine, sound absorption sponge, water tank, gas approach, power amplifier, signal generator; The top of reunion room main body is provided with compression and drives sound source, compression drives sound source to be connected in turn with power amplifier, signal generator, the upper portion side wall of reunion room main body is provided with gas approach, nozzle is provided with in the top of reunion room main body, nozzle is connected with surge tank, plunger type metering pump, water tank respectively, the lower sides of reunion room main body is provided with air-introduced machine, and the bottom of reunion room main body is provided with sound absorption sponge.
Described compression drives the frequency 1400 ~ 2000Hz of sound source, sound pressure level 140 ~ 150dB.
Described nozzle is Danfoss 60 ° of solid atomizers.
The method that acoustic agglomeration combination spraying synergy removes fine particulates is:
Dust-contained airflow enters reunion room main body through gas approach, it is 1400 ~ 2000Hz that compression drives sound source to send frequency, sound pressure level is the sound wave of 140 ~ 150dB, frequency and sound pressure level all can regulate arbitrarily in respective scope, due to the sound absorption of the sponge that absorbs sound, sound wave forms Traveling wave in the main body of reunion room, sound absorption sponge thickness is 30mm, plunger type metering pump draws water from water tank, make stable water pressure at 1.6Mpa through surge tank, water is atomized and enters reunion room after nozzle, its mist droplet particle size is distributed in the scope of 40 ~ 60 microns, the model of nozzle is Danfoss 60 ° of solid atomizers, control the flow of dust-contained airflow, make the time of staying of dust-contained airflow in the main body of reunion room between 3 ~ 7 seconds, dust-contained airflow is reunited under the synergy of Traveling wave and spraying, fine particle is agglomerated into the larger particle of particle diameter, discharge through air-introduced machine.
The invention has the beneficial effects as follows:
1) fine particle efficiency of dust collection is improved: adopt acoustic agglomeration to combine spraying synergy and pretreatment is carried out to the fine particle in the dust-contained airflows such as coal-burning power plant's smoke evacuation, greatly improve the acoustic agglomeration efficiency of fine particle, in conjunction with follow-up traditional deduster, reach the object of efficient removal PM2.5, thus the discharge of control PM2.5.
2) reduce the energy consumption of acoustic agglomeration: when reunion efficiency is identical, the sound pressure level needed for method adopting sound wave to combine spraying will be significantly less than and only use the methods such as sound wave, thus effectively can reduce the energy consumption of acoustic agglomeration.
Accompanying drawing explanation
Fig. 1 is that acoustic agglomeration removes the device schematic diagram of fine particulates with spraying synergy;
In figure: compression drives sound source 1, reunion room main body 2, surge tank 3, plunger type metering pump 4, nozzle 5, air-introduced machine 6, sound absorption sponge 7, water tank 8, gas approach 9.
Specific embodiments
As shown in Figure 1, acoustic agglomeration combines device that spraying synergy removes fine particulates and comprises compression and drive sound source 1, reunion room main body 2, surge tank 3, plunger type metering pump 4, nozzle 5, air-introduced machine 6, sound absorption sponge 7, water tank 8, gas approach 9, power amplifier, signal generator; The top of reunion room main body 2 is provided with compression and drives sound source 1, compression drives sound source 1 to be connected in turn with power amplifier, signal generator, the upper portion side wall of reunion room main body 2 is provided with gas approach 9, nozzle 5 is provided with in the top of reunion room main body 2, nozzle 5 is connected with surge tank 3, plunger type metering pump 4, water tank 8 respectively, the lower sides of reunion room main body 2 is provided with air-introduced machine 6, and the bottom of reunion room main body 2 is provided with sound absorption sponge 7.
Described compression drives the frequency 1400 ~ 2000Hz of sound source 1, sound pressure level 140 ~ 150dB.Described nozzle 5 is Danfoss 60 ° of solid atomizers.
The method that acoustic agglomeration combination spraying synergy removes fine particulates is:
Dust-contained airflow enters reunion room main body 2 through gas approach 9, it is 1400 ~ 2000Hz that compression drives sound source 1 to send frequency, sound pressure level is the sound wave of 140 ~ 150dB, frequency and sound pressure level all can regulate arbitrarily in respective scope, due to the sound absorption of the sponge 7 that absorbs sound, sound wave forms Traveling wave in reunion room main body 2, sound absorption sponge 7 thickness is 30mm, plunger type metering pump 4 draws water from water tank 8, make stable water pressure at 1.6Mpa through surge tank 3, water is atomized and enters reunion room after nozzle 5, its mist droplet particle size is distributed in the scope of 40 ~ 60 microns, the model of nozzle 5 is Danfoss 60 ° of solid atomizers, control the flow of dust-contained airflow, make the time of staying of dust-contained airflow in reunion room main body 2 between 3 ~ 7 seconds, dust-contained airflow is reunited under the synergy of Traveling wave and spraying, fine particle is agglomerated into the larger particle of particle diameter, discharge through air-introduced machine 6.
The present invention mainly adopts the sound wave of design and the symphyogenetic device of spraying, carries out pretreatment to dust-contained airflow.Concrete technical characterstic is:
1) determination of sound source condition of work: employing be Traveling wave, frequency of source does not affect sound field and is formed, and can be adjusted to arbitrarily the frequency of source of fine particle reunion efficiency the best, scope is between 1400 ~ 2000Hz.Sound pressure level is higher, and reunion efficiency is better, considers sound source stability and energy consumption, adopts the high sound intensity of 140 ~ 150dB to arbitrarily downgrade.
2) determination of reunion chamber size: acoustic agglomeration needs dust-contained airflow to have certain time of staying in sound field, according to the flow of gas, should ensure that the time of staying of air-flow in reunion room is not less than 3 seconds, and consider that volume is unsuitable excessive, the time of staying 3 ~ 7s is best.
3) that sprays adds: the pressure of spraying is controlled by plunger type metering pump, because pressure is easily unstable, uses surge tank to carry out voltage stabilizing process to atomizer passgae, and monitors with Pressure gauge.Nozzle puts in reunion room by the flange port of upper end, room of reuniting, and water is formed vaporific to the indoor ejection of reunion after nozzle, with dust-contained airflow effect.
4) course of work: open sound source, simultaneously opening plunger formula measuring pump starts spraying, and dust-contained airflow enters from end entrance reunion room, and fine particle is reunited under the acting in conjunction of sound wave and spraying, and air-flow is discharged from the outlet of bottom, reunion room through air-introduced machine.

Claims (4)

1. an acoustic agglomeration combines the device that spraying synergy removes fine particulates, it is characterized in that comprising compression drives sound source (1), reunion room main body (2), surge tank (3), plunger type metering pump (4), nozzle (5), air-introduced machine (6), sound absorption sponge (7), water tank (8), gas approach (9), power amplifier, signal generator; The top of reunion room main body (2) is provided with compression and drives sound source (1), compression drives sound source (1) to be connected in turn with power amplifier, signal generator, the upper portion side wall of reunion room main body (2) is provided with gas approach (9), nozzle (5) is provided with in the top of reunion room main body (2), nozzle (5) is connected with surge tank (3), plunger type metering pump (4), water tank (8) respectively, the lower sides of reunion room main body (2) is provided with air-introduced machine (6), and the bottom of reunion room main body (2) is provided with sound absorption sponge (7).
2. an acoustic agglomeration according to claim 1 combines the device that spraying synergy removes fine particulates, it is characterized in that described compression drives the frequency 1400 ~ 2000Hz of sound source (1), sound pressure level 140 ~ 150dB.
3. an acoustic agglomeration according to claim 1 combines the device that spraying synergy removes fine particulates, it is characterized in that described nozzle (5) is for Danfoss 60 ° of solid atomizers.
4. use the acoustic agglomeration of device as claimed in claim 1 combination spraying synergy to remove a method for fine particulates, it is characterized in that:
Dust-contained airflow enters reunion room main body (2) through gas approach (9), it is 1400 ~ 2000Hz that compression drives sound source (1) to send frequency, sound pressure level is the sound wave of 140 ~ 150dB, frequency and sound pressure level all can regulate arbitrarily in respective scope, due to the sound absorption of sound absorption sponge (7), sound wave is middle in reunion room main body (2) forms Traveling wave, sound absorption sponge (7) thickness is 30mm, plunger type metering pump (4) draws water from water tank (8), make stable water pressure at 1.6Mpa through surge tank (3), water is atomized and enters reunion room after nozzle (5), its mist droplet particle size is distributed in the scope of 40 ~ 60 microns, the model of nozzle (5) is Danfoss 60 ° of solid atomizers, control the flow of dust-contained airflow, make the time of staying of dust-contained airflow in reunion room main body (2) between 3 ~ 7 seconds, dust-contained airflow is reunited under the synergy of Traveling wave and spraying, fine particle is agglomerated into the larger particle of particle diameter, discharge through air-introduced machine (6).
CN201310729868.0A 2013-12-26 2013-12-26 Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates Active CN103706219B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310729868.0A CN103706219B (en) 2013-12-26 2013-12-26 Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310729868.0A CN103706219B (en) 2013-12-26 2013-12-26 Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates

Publications (2)

Publication Number Publication Date
CN103706219A CN103706219A (en) 2014-04-09
CN103706219B true CN103706219B (en) 2015-10-07

Family

ID=50399780

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310729868.0A Active CN103706219B (en) 2013-12-26 2013-12-26 Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates

Country Status (1)

Country Link
CN (1) CN103706219B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103877824B (en) * 2014-04-10 2015-12-09 中国人民解放军国防科学技术大学 Based on the Combustion Energy origin system fine particle emission reduction device of acoustic agglomerator principle
CN103933822A (en) * 2014-04-29 2014-07-23 中国人民解放军国防科学技术大学 Resonant cavity type sound agglomeration system and method for treating suspended particles
CN103949135B (en) * 2014-04-29 2015-12-02 中国人民解放军国防科学技术大学 For the treatment of the strong acoustic agglomeration device and method of suspended particulate
CN104147891B (en) * 2014-08-25 2016-07-06 东南大学 A kind of device and method controlling the discharge of wet process of FGD fine grained
CN104190199B (en) * 2014-09-02 2016-03-23 国家海洋局第三海洋研究所 Sound wave and phase transformation coupling effect remove fine grain apparatus and method
CN104923403B (en) * 2015-06-29 2018-03-16 浙江大学 The devices and methods therefor of sound wave combined electric field action removing fine particle
CN106076053A (en) * 2016-08-04 2016-11-09 长沙鑫嵘环保科技有限公司 Separate type acoustic agglomeration suspension fine grained emission-reducing system based on resonant cavity
CN106268159B (en) * 2016-09-06 2018-08-14 上海应用技术大学 A kind of exhaust gas processing device and processing method
CN106975318A (en) * 2017-03-24 2017-07-25 华北电力大学 A kind of acoustic agglomeration joint magnetic fields removing fine particle devices and methods therefor
CN106861352A (en) * 2017-03-24 2017-06-20 华北电力大学 Acoustic agglomeration joint turbulent flow coalescence technology removes the devices and methods therefor of fine particle
CN107029508A (en) * 2017-04-21 2017-08-11 华电青岛发电有限公司 A kind of dust arrester and its application based on acoustic agglomeration
CN107158856A (en) * 2017-05-25 2017-09-15 华北电力大学 A kind of method that chemical agglomeration joint acoustic agglomeration removes coal-fired flue-gas tiny particles content
WO2019051816A1 (en) * 2017-09-16 2019-03-21 王元秀 Air humidification standing-wave purifier
CN110252056B (en) * 2019-06-05 2021-05-11 东华大学 Oblique incidence ultrasonic standing wave dynamic scanning type dust-containing air purification device
CN111036006B (en) * 2019-12-24 2021-08-03 上海海事大学 Sound wave enhanced ship waste gas desulfurization and particulate matter removal device
CN111157615B (en) * 2019-12-31 2022-07-12 清华大学 Sound wave cloud chamber

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475921A (en) * 1982-03-24 1984-10-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Acoustic agglomeration methods and apparatus
CN100531862C (en) * 2007-09-18 2009-08-26 东南大学 Apparatus and method for removing grains with combined action of sound wave and additional seed grain
CN101637683A (en) * 2009-08-10 2010-02-03 申小中 Acoustic agglomeration composite bag type dust removing device
CN101841255A (en) * 2010-04-19 2010-09-22 东南大学 Noise power generation device and power generation method
CN203750369U (en) * 2013-12-26 2014-08-06 浙江大学 Device for removing fine particles through acoustic agglomeration and spray combined effect

Also Published As

Publication number Publication date
CN103706219A (en) 2014-04-09

Similar Documents

Publication Publication Date Title
CN103706219B (en) Acoustic agglomeration combines the devices and methods therefor that spraying synergy removes fine particulates
CN203750369U (en) Device for removing fine particles through acoustic agglomeration and spray combined effect
CN203489412U (en) High-pressure atomizing humidifier
CN104689675A (en) Device and method for removing fine particulate matters by acoustic agglomeration with flying ash recirculating
CN203484018U (en) Charged water mist desulfurization deduster
CN106975318A (en) A kind of acoustic agglomeration joint magnetic fields removing fine particle devices and methods therefor
CN203342613U (en) Novel mine pneumatic wet dust collector
CN103585850A (en) Fine particle aggregating device under aggregating agent and jet effects
CN205760332U (en) A kind of environmental protection is with automatically controlling water spray dust elimination device
CN103920351A (en) Dust-falling dry fog generating device
CN204816888U (en) Electric field action desorption fine particles's device is united to sound wave
CN104923403B (en) The devices and methods therefor of sound wave combined electric field action removing fine particle
CN204830322U (en) Intelligent indoor new trend air inlet system
CN106861352A (en) Acoustic agglomeration joint turbulent flow coalescence technology removes the devices and methods therefor of fine particle
CN201862331U (en) Low-pressure jet pulse bag type dust catcher
CN104258674B (en) A kind of array type electrostatic atomization ultra-thin micro-particle coalescence Apparatus and method for
CN202762328U (en) Pollution-free visible aerosol generator
CN203240673U (en) Air purifier
CN207385049U (en) A kind of Industrial Stoves minimum discharge bag filter
CN204522610U (en) A kind of anti-freeze type integrally declines mist dust suppression machine
CN207356825U (en) A kind of zinc oxide pulse dust collector
CN203408592U (en) Novel waste gas filter
CN103157337A (en) Novel dust removal device
CN108905465A (en) A kind of ball blast room air cleaning exhaust system
CN203540225U (en) Indoor air purifying integrated device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant