CN201150840Y - Atomization corona plasma fume cleaning device - Google Patents
Atomization corona plasma fume cleaning device Download PDFInfo
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- CN201150840Y CN201150840Y CNU2007201900883U CN200720190088U CN201150840Y CN 201150840 Y CN201150840 Y CN 201150840Y CN U2007201900883 U CNU2007201900883 U CN U2007201900883U CN 200720190088 U CN200720190088 U CN 200720190088U CN 201150840 Y CN201150840 Y CN 201150840Y
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Abstract
An atomised corona plasma flue gas cleaning unit belongs to the technical field of gaseous contaminant control, which overcomes the disadvantages that the prior smoke purifier is incapable of completely satisfying the requirement for purifying smoke in catering trade. The utility model comprises a discharge electrode, a passive electrode and high voltage sources, wherein the discharge electrode (9) is connected with a negative high voltage sources (3) via high voltage wires (15), the passive electrode (10) earths up via wires (16), and the passive electrode and the discharge electrode are form non-uniform electric field. The atomised corona plasma flue gas cleaning unit has the advantages of being provided with a lower seal water tank (4), a sparying water-supply tank (5) and a nozzle (8), wherein the lower seal water tank is connected with a water pump (14) which is connected with the sparying water-supply tank (5) via a water pipe (13), the bottom portion of the sparying water-supply tank is connected with the nozzle (8) whose lower portion is connected with the discharge electrode (9), and the lower seal water tank (4) and the sparying water-supply tank (5) are all obligates overflow openings which are connected with overflow pipes (12). The utility model can remove oil smoke pollution primely under the condition of the atmospheric temperature and the atmosphere pressure, improve cycle of operation of the device and reduce maintenance cost.
Description
Technical field
The utility model relates to a kind of purifier of removing oil smoke, is applicable to the pollutants such as oil smoke that remove under the normal temperature and pressure in the diet service trade discharging waste gas, belongs to gaseous contaminant and administers technical field.
Background technology
Along with the development and the quickening of urbanization process of China's tertiary industry, diet service trade shared proportion in urban economy development is increasing.The develop rapidly of catering trade, flourishing urban economy has promoted urban development, has also brought severe contamination to environment simultaneously.
The particle (TSP) of the existing suspended state of existence of oil smoke has the organic matter of gaseous state again.The pollutant sum can reach kind more than 200, mainly contains unsaturated hydro carbons, saturated hydrocarbons, aldehydes, aliphatic acid, aromatic series and sulfur-bearing, nitrogen-containing compound and heterocyclic compound etc.
Ongoing research to diet oil smoke toxicity is a lot, studies show that: the multiple poisonous chemical composition that contains in the oil smoke has lungs toxicity, immunotoxicity, genetoxic, carcinogenic mutagenicity etc. to body, should attract great attention to the harm of health.
There is certain degree of difficulty in the diet fume purifying.At first, record the aerocolloidal average grain diameter of mist of oil between 30～100nm by experiment, particle is extremely fine, and oil smoke adhesion and hydrophobicity that also tool is stronger, and this has brought difficulty all for the research of new and effective purification techniques; Secondly, the benzo that is contained in the oil smoke (a) pyrene, dibenzo (a, h) noxious material of carcinogenicity such as anthracene and 1,3-butadiene, methacrylaldehyde in gaseous sample chemical constituent than many in the particulate samples.And the smell in the oil smoke mainly is to be done by gaseous contaminant, also is one of fume purifying difficult problem that will solve so remove the gaseous contaminant of complicated component in the oil smoke; Moreover China still has some eating and drinking establishments to adopt diesel oil or charcoal to act as a fuel at present, contains a large amount of imperfect combustion carbon granules and nitrogen oxide in the kitchen range cigarette that produces in its combustion process, and its pollution also can't neglect.
At present, in the fume purifying treatment industry, generally the processing method of Cai Yonging has mechanical type technology for cooking fume control, wet type technology for cooking fume control, electrostatic oil fume purification techniques, composite oil smoke cleaning technology etc.
A few class purifying oil fume methods have his own strong points, but all can not satisfy the requirement that cooking fume purifies fully, and all there be excellent, shortcoming separately in every kind of oil smoke improvement method.Spray washing method and electrostatic deposition deoiling effect are remarkable, but have equipment complexity, cycle of operation weak point and the more high defective of maintenance cost.The treatment effect of filtration method and inertial separation method is better and equipment is simple, but has the low problem of oil removal efficiency.Advanced cooking fume purifier should should can efficiently be removed tiny oil droplet as electrostatic precipitation and dust removal by filtration, and can not produce the sewage secondary pollution at the characteristics of oil smoke; As washing, purifying, can overcome oil droplet viscosity again, operation steady in a long-term, and part that can be removed gaseous contaminant.Simply with above-mentioned two kinds of device combinations, comprehensive its shortcoming, make put in order table apparatus can not long-term stable operation, can not prevent the secondary pollution of sewage again.Thereby cooking fume purifies the new gas cleaning mechanism of introducing that presses for, development advanced person's novel flue gas purifying equipment.
The utility model content
The purpose of this utility model is to provide a kind of cleaning equipment that is used to remove cooking fume, can remove fume pollution well at normal temperatures and pressures, improves the equipment cycle of operation, reduces maintenance cost.
At present the atomizing corona plasma technology is directly applied to fume purifying, yet there are no relevant patent at home.It is to develop and next a kind of atomizing corona plasma flue gas purifying device on the basis of traditional electrostatic precipitator technology, comprises discharge electrode, passive electrode and high voltage source; Discharge electrode 9 links to each other with negative high voltage power source 3 by high-tension bus-bar 15, and passive electrode 10 is by electric wire 16 ground connection; 9 of passive electrode 10 and discharge electrodes form non-uniform electric field, produce stable corona discharge; It is characterized in that: also be provided with bottom flashback tank 4, spray upper water box 5 and nozzle 8; Bottom flashback tank 4 connects water pump 14, and water pump 14 links to each other with spray upper water box 5 by water pipe 13, and spray upper water box 5 bottoms are connected with nozzle 8, and nozzle 8 bottoms are connected with discharge electrode 9; Bottom flashback tank 4 and spray upper water box 5 are all reserved overfall, are connected with overflow pipe 12.
Discharge electrode 9 is a stainless steel wire, also can change alloy silk or other wire into; Passive electrode 10 is the husky web frame of hard wire, and husky net is fine and close, is mainly used in the air communication mistake, and plays the effect that water droplet passes through that hinders, and mesh size is less than 0.3mm.At this moment, whole electric field lines and the oil smoke air-flow that enters clarifier in the same way, passive electrode and discharge electrode placement direction are perpendicular to entering air-flow.
Contour size of the unit(s) can be adjusted according to cover eye and flue size, and in the adjustment process, discharge electrode 9 and passive electrode 10 can increase according to practical situations.
Compare with other fume treating device, novel discharge electrode atomizing corona plasma flue gas purifying equipment has following characteristics:
(1) except wet static dedusting mechanism, atomizing corona discharge has increased the power coalescence of high velocity water droplets again, and the static coalescence of charged water droplet and purify machine-processedly to charged grade of the electronics of small dust thereby has higher efficiency of dust collection to small dust.
(2) owing to react to each other between plasma and the water smoke, generate strong oxidation molecule such as high mars free radical such as a large amount of OH, O and O3, they can effectively destroy the organic polymer material that has peculiar smell in the oil smoke, and making it scission of link is harmless inorganic molecules material, as CO2, H2O etc.Therefore atomizing corona plasma can effectively be removed pernicious gas and elimination stink in the flue gas, purification efficiency height; And other clarifier can not reach effective removal to gas with foreign flavor in the flue gas.
(3) sustainablely carry out the discharge electrode atomizing of supplying water, because its high speed drop impulsive force is bigger, liquid drop speed can reach 30m/s, only just can reach cleaning performance preferably with a spot of water, avoid oil droplet pickup discharge electrode and the electrode that gathers dust, guarantee the steady in a long-term and operation efficiently of dust arrester, increased the non-maintaining time, maintenance cost is lower.
(4) the atomizing corona discharge can be removed stink, variegated, harmful organic substance, also has the function of sterilization, and some microorganism that can produce obstruction also can be killed.Even contain soluble organic in the water owing to the water long-time running makes like this, produce peculiar smell, breed bacteria and microorganism, the plasma of discharge generation also can make these problems be resolved.So in atomizing corona discharge dedusting, may be recycled, can use for a long time like this and need not change to water.
(5) the occupation of land space is little, and cost is lower, and operating cost is cheap.
When this technology was applied to fume purifying, its mechanism as shown in Figure 3.
The structure of (a) expression electric field among the figure; In the time of passive electrode (plate electrode) and positive high voltage power connection, by water pipe to the discharge electrode water flowing, and assurance constant flow rate, (b) be illustrated in and formed non-uniform electric field between two electrodes, water smoke by discharge electrode atomizing generation, charged charged with high strength ionic through the electronics of peeling off charged and nearly corona zone, forming particle diameter at interpolar is tens μ m and highly charged droplet, and Wu Hua drop can guarantee that also discharge electrode can not caused corona to extinguish by the sticky particle adhesion because of running time is long simultaneously; (c) the expression smoke particle enters electric field; (d) expression is except that the charged removal mechanisms at work of conventional electrostatic dedusting to mist of oil, smoke particle is atomized drop and captures also charged in electric field, the particle diameter of smoke particle is very little, be generally micron even submicron order, conventional electrostatic equipment is difficult to capture, and in present technique, smoke particle is atomized charged droplet capture by static coalescence and power coalescence and forms bigger particle, thereby can be collected pole plate and capture smoothly; (e) the charged particle of expression flies to passive electrode at a high speed under effect of electric field, and the low temperature plasma of discharge electrode atomizing corona discharge generation has certain effect to removing pernicious gas simultaneously, can remove the smell in the oil smoke to a great extent; (f) be illustrated in the passive electrode surface because the feasible flowability that is deposited on the particle on passive electrode surface of the effect of atomized drop strengthens, make it can be dirty along passive electrode automatically, when so just having avoided long-play since the tack adhesion of oil smoke at the blocked up anti-corona that causes of the oil smoke layer on passive electrode surface, and can reach the effect of cleaning pole plate, the pole plate that has solved the viscosity fume purifying cleans problem of difficult.
It is to be noted simultaneously, by also reacting to each other between plasma and the water smoke, thereby generate strong oxidation molecule such as high mars free radical such as a large amount of OH, O and O3, they can effectively destroy the organic polymer material that has peculiar smell in the oil smoke, making it scission of link is harmless inorganic molecules material, as CO2, H2O etc.
Description of drawings
Accompanying drawing 1 is a treatment system device sketch of the present utility model.
Accompanying drawing 2 is apparatus sketch of the present utility model.
Accompanying drawing 3 is principle key diagrams of the present utility model.
The specific embodiment
The embodiment that the utility model is not limited to herein to be set forth.On the contrary, the purpose that discloses these embodiments is in order to make content of the present disclosure comprehensive and complete, and sets forth scope of the present utility model to those skilled in the art up hill and dale.
The purpose of the following examples is applicable to explanation the utility model, and wherein used instrument and detection method etc. are not the restrictions to scope of the present utility model.
The atomizing corona plasma flue gas purifying technology is to keep discharge electrode that the electrospray wet condition of low amounts of water is arranged, and water droplets is impacted collecting plate and formed one deck at polar board surface and approaches and the even moisture film that drops down down.The moisture that drops down blowback discharge electrode after going out greasy dirt recycles.
In the accompanying drawing 1, during the work beginning, high voltage source 3, air-introduced machine 6 are opened.The water that the bottom flashback tank is 4 li is drawn out of the back and forms the water circulation.The oil smoke that will handle is sucked by range hood 1, and enters clarifier 2 through oil smoke inlet and spray thrower.Clarifier respective figure two comprises nozzle 8, discharge electrode 9, passive electrode 10 and housing 11.Spray upper water box 5 supplies water to nozzle and forms the thin waterline of numerous ground connection, and thin waterline discharging atomizing efficiently purifies oil smoke under the effect of high-field electrode, simultaneously recirculated water is handled.Gas after being cleaned is discharged by air-introduced machine 6, and air-introduced machine and insulator can need not safeguarded because of contaminated in long-time running.Flow into bottom flashback tank 4 after water smoke cleaning electrode and the Purge gas, enter spray upper water box 5 through filter and water pump again, thereby realize periodical feeding.During end-of-job, close high voltage source 3 and air-introduced machine 6.
In the accompanying drawing 2, open water pump 14 and high voltage source 3, recirculated water constantly forms the electrohydrodynamics atomizing by nozzle 8 ejections at discharge electrode 9 and collecting plate 10 zones, water droplets is charged by free electron and ion height, flies to passive electrode 10 under electric field action at a high speed.Be attended by soot gas access arrangement housing 11 this moment, smoke particle is atomized drop capture and charged in electric field, and charged particle flies to passive electrode 10 at a high speed under effect of electric field.The low temperature plasma of discharge electrode atomizing corona discharge generation has certain effect to removing the peculiar smell organic matter simultaneously, can remove the smell in the oil smoke to a great extent.Because the effects of atomized drop make the flowability of the particle that is deposited on the passive electrode surface strengthen, make it can be dirty along passive electrode automatically on passive electrode 10 surface.Afterwards, recirculated water enters bottom flashback tank 4, and flashback tank 4 casings in bottom are reserved overfall, if dilutional hyponatremia is then discharged along overflow pipe 12; Flashback tank 4 interior water in bottom can be used as recirculated water and recycle, and return spray upper water box 5 by water pump 14 through water pipes 13, and spray upper water box 5 casings also are reserved with overfall, if the then suitable overflow pipe 12 of dilutional hyponatremia is discharged; Connect the negative high voltage lead-out terminal of discharge electrode 9 and high voltage source 3 respectively by high-tension bus-bar 15, passive electrode 10 is by electric wire 16 ground connection.
The structure of (a) expression electric field in the accompanying drawing 3, (b) expression water atomization, (c) the expression smoke particle enters electric field, and (d) with (e) capture of expression smoke particle, (f) the expression smoke particle is dirty along passive electrode.
Voltage is during greater than 18kV, and this equipment can reach more than 90% the removal efficient of oil smoke, is 60% to the purification efficiency of gas with foreign flavor.
Claims (1)
1, a kind of atomizing corona plasma flue gas purifying device comprises discharge electrode, passive electrode and high voltage source; Discharge electrode (9) links to each other with negative high voltage power source (3) by high-tension bus-bar (15), and passive electrode (10) is by electric wire (16) ground connection; Form non-uniform electric field between passive electrode (10) and discharge electrode (9), produce stable corona discharge; It is characterized in that: also be provided with bottom flashback tank (4), spray upper water box (5) and nozzle (8); Bottom flashback tank (4) connects water pump (14), and water pump (14) links to each other with spray upper water box (5) by water pipe (13), and spray upper water box (5) bottom is connected with nozzle (8), and nozzle (8) bottom is connected with discharge electrode (9); Bottom flashback tank (4) and spray upper water box (5) are all reserved overfall, are connected with overflow pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900883U CN201150840Y (en) | 2007-11-09 | 2007-11-09 | Atomization corona plasma fume cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201900883U CN201150840Y (en) | 2007-11-09 | 2007-11-09 | Atomization corona plasma fume cleaning device |
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| CN201150840Y true CN201150840Y (en) | 2008-11-19 |
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| CNU2007201900883U Expired - Fee Related CN201150840Y (en) | 2007-11-09 | 2007-11-09 | Atomization corona plasma fume cleaning device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527516A (en) * | 2011-12-31 | 2012-07-04 | 米俊锋 | Dust drop coagulation and gathering device through atomizing and discharging |
| CN104984647A (en) * | 2015-05-14 | 2015-10-21 | 嘉兴性天环保科技有限公司 | Organic waste gas treatment method and special apparatus thereof |
| CN105134339A (en) * | 2015-09-25 | 2015-12-09 | 哈尔滨工业大学（威海） | Automobile exhaust purifying device adopting water fog charges and plasma |
| CN105413374A (en) * | 2015-12-17 | 2016-03-23 | 陈西安 | Micro-charge water spray waste gas treatment method |
| CN106855256A (en) * | 2017-02-13 | 2017-06-16 | 贵州红太阳环保厂 | A kind of self-cleaning oil smoke cleaner and kitchen tools |
| CN110006081A (en) * | 2019-04-10 | 2019-07-12 | 宁波市镇海怡福莱文化创意有限公司 | A kind of circulation combination stove |
-
2007
- 2007-11-09 CN CNU2007201900883U patent/CN201150840Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527516A (en) * | 2011-12-31 | 2012-07-04 | 米俊锋 | Dust drop coagulation and gathering device through atomizing and discharging |
| CN104984647A (en) * | 2015-05-14 | 2015-10-21 | 嘉兴性天环保科技有限公司 | Organic waste gas treatment method and special apparatus thereof |
| CN105134339A (en) * | 2015-09-25 | 2015-12-09 | 哈尔滨工业大学（威海） | Automobile exhaust purifying device adopting water fog charges and plasma |
| CN105413374A (en) * | 2015-12-17 | 2016-03-23 | 陈西安 | Micro-charge water spray waste gas treatment method |
| CN106855256A (en) * | 2017-02-13 | 2017-06-16 | 贵州红太阳环保厂 | A kind of self-cleaning oil smoke cleaner and kitchen tools |
| CN106855256B (en) * | 2017-02-13 | 2023-11-17 | 贵州红太阳环保厂 | Automatic wash oil smoke clarifier and kitchen utensils and appliances |
| CN110006081A (en) * | 2019-04-10 | 2019-07-12 | 宁波市镇海怡福莱文化创意有限公司 | A kind of circulation combination stove |
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