CN101653683A - Oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane - Google Patents
Oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane Download PDFInfo
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- CN101653683A CN101653683A CN200910144915A CN200910144915A CN101653683A CN 101653683 A CN101653683 A CN 101653683A CN 200910144915 A CN200910144915 A CN 200910144915A CN 200910144915 A CN200910144915 A CN 200910144915A CN 101653683 A CN101653683 A CN 101653683A
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Abstract
The invention relates to an oil and smoke purifier of a low-temperature plasma synergistic modified filtering membrane in purification catering. The oil and smoke purifier comprises a gas-collecting hood, a vent pipe and a fan, wherein a working surface of the gas-collecting hood is provided with a stainless steel mesh and a filtering membrane in sequence, and a trough-shaped oil-collecting tank is arranged at the lower edge of the working surface of the gas-collecting hood; a secondary oil-collecting tank is arranged on the vent pipe in series, more than one pair of anode plate and cathode plate which are parallel to each other are arranged in the secondary oil-collecting tank, and a high-pressure pulse plasma generator is arranged between an anode terminal and a cathode terminal in series; an oil outlet is arranged at one side of the bottom of the second oil-collecting tank; and a blast volume adjusting valve is arranged at an outlet of the vent pipe. The invention has the advantagesthat the synergistic effect between filtering materials and a plasma has unique advantages for removing flue gas in a kitchen; the structure is simple, the removal ratio is high, the maintenance is convenient, and the treated gas has no odors; and the device is unnecessary to be rinsed, belongs to a technology for purifying flue gas in the kitchen by adopting a dry method, and not only can be used for purifying oil and smoke in hotels, restaurants and dining halls, but also can be applied to gas purification of a large-size central air-conditioning system.
Description
Technical field
The present invention relates to catering trade cooking fume remover.
Background technology
The main component of kitchen fume is edible oil, condiment, water vapour, and the various pernicious gases that pyrolytic produces become to grade.It mainly is range hood that the traditional kitchen exhaust gas of China is administered, though this method part has purified room air, multiple harmful substances is unprocessed in the oil smoke is discharged in the atmosphere, fails to reach purification fully truly, the heavy damage atmosphere quality; Materials such as the greasy filth that sticks on range hood wall and ventilating fan simultaneously, flue dust clean difficult unusually.Along with China's catering trade develops rapidly, catering trades such as particularly large-scale hotel, restaurant, dining room show the pollution day of cooking fume outstanding.
Edible oil begins to decompose when cooking temp reaches 170 ℃, forms diameter 10
-3The above little oil droplet of cm.Its main component begins vaporization when heating-up temperature is higher than 270 ℃, has formed diameter 10
-7-10
-3The cm micro-droplet of oil.After adding food in the oil, the moisture vaporization evaporation in the food forms water smoke, and mixes with oil smoke and to form mist of oil and fuel heat and decompose the flue dust that produces and be mixed together generation oil smoke mist.The oil smoke of general indication mainly is a diameter 10
-3The above tiny oil droplets of cm is formed, and it is the aerosol that a kind of gas, liquid, solid three-phase mixes, and composition is extremely complicated.Edible oil and food institute carbohydrate containing, protein, amino acid, lipid generation thermal oxide are decomposed under hot conditions, interact between middle (or eventually) product secondary response takes place.Contain in the catabolite and generally acknowledged at present more than 10 kind of organic matters such as polycyclic aromatic hydrocarbon, people's nose, eye, throat mucous membrane had than the strong stimulation effect, can cause breathing problems such as rhinitis, sphagitis, tracheitis with strong carcinogenesis; Higher concentration oil smoke gas also will influence cellular immune function, cause different cytogenetics toxic and side effects such as gene mutation, DND and chromosome damage.
At present, cooking fume is administered more existing technology and relevant device, normally method or several method composite governances such as inertial separation, electrostatic precipitation, liquid scrubbing, fabric filtration.Chinese scholars is also studied biological degradation method, thermal oxide burning method, the catalyst method of purification in recent years.Biological degradation method is to utilize the microorganism with degraded oil smoke composition that oil smoke gas is carried out absorption degradation.At first mud is tamed, cultivate its degradation capability to oil flue waste gas, biofilm again feeds the cooling of oil smoke gas in the packed tower by specific device, but that purification efficiency is influenced by flue-gas temperature is bigger.Electrostatic deposition is that oil smoke gas is introduced high voltage electric field, makes in the oil smoke gas particle charged, under the electric field force effect to dust collecting electrode motion and deposition.But oil smoke condensation thing viscosity is higher, and dust collecting electrode is cleaned difficulty, and maintenance workload increases, and cost of equipment is higher.The thermal oxide burning method is to utilize oxidation reaction to make that harmful components convert safe condition in the oil smoke, for making all emissions burnings fully, keeps discharged nitrous oxides to limit the quantity of minimum again, this technology more complicated.The liquid scrubbing method is that oil smoke gas is contacted with absorption liquid through the special gas distribution apparatus, and particle is removed to liquid phase from gas phase.Advantage is to change cleaning solution character can remove SO in the oil smoke simultaneously
2, NO
xDeng pernicious gas; Shortcoming is to be subjected to the wet scrubber performance limitations, and is lower to the particle purifying efficient of submicron order, and scrub raffinate does not rationally solve as yet.The fabric filtration method is an oil smoke when passing through fiber medium, particle owing to spread, hold back, effect such as inertial collision is removed.But pressure drop is bigger, needs the frequent filtrate of changing, and operating cost improves.Plasma method is that a large amount of living radicals that utilize its high-energy to excite are degraded to soot particles, and its concentration is descended; In the plasma production process, the instantaneous high-energy that high-frequency discharge produces is opened the chemical bond of some pernicious gases, makes it resolve into simple substance atom or harmless molecule; But simple plasma method remains further to be improved to the clean-up effect of high concentration oil smoke.
Summary of the invention
In order effectively to capture various tiny droplets in the oil smoke, realize the efficient purpose that purifies, the invention provides a kind of oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane.
The technical solution that realizes above-mentioned purpose is as follows:
Oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane comprises gas skirt, blast pipe and blower fan, and the gas skirt top is communicated with blast pipe by bend pipe, and the exit of blast pipe is provided with rainhat;
The working face of described gas skirt is provided with stainless (steel) wire and filter membrane successively, and its lower limb is provided with the oil-collecting tank of groove shape;
Series connection is provided with the secondary oil sump tank on the described blast pipe, be provided with the positive plate and the minus plate that are parallel to each other more than a pair of in the described secondary oil sump tank, anode terminal and cathode terminal lay respectively at the outside of secondary oil sump tank, the high voltage pulse discharge plasma generator of connecting between described anode terminal and the cathode terminal; Secondary oil sump tank bottom one side is provided with oil-out;
A secondary oil sump tank axial end corresponding with described bend pipe is air inlet, and the other end is an air outlet; Described blower fan is positioned at the air outlet place of secondary oil sump tank; The exhaust outlet place is provided with volume damper.
Described a pair of above interlaced parallel positive plate and the angle between minus plate and the horizontal plane are the 5-12 degree, and spacing is 10-45mm between adjacent plate.
Be provided with three pairs of interlaced parallel positive plates and minus plate in the described secondary oil sump tank, an end of the three positive plates anode terminal that is being connected in parallel, an end of the three minus plates cathode terminal that is being connected in parallel.
Described stainless (steel) wire at the gas skirt working face is radial net, is furnished with " rice " font stainless steel strip at the inner surface of this net.
Described filter membrane material is a heatproof chemical fibre non-woven mat, and heatproof chemical fibre non-woven mat surface is provided with surfactant layer, and described surfactant is the mixed compound of alkyl sulfonate and/or this dish and/or tween.
Described positive plate material is aluminium or titanium or stainless steel, and the minus plate material is a carbon fiber woven roving fiber glass epoxy.
Useful technique effect of the present invention is embodied in the following aspects:
1, the present invention adopts the structure of low-temperature plasma synergistic surface modification filter membrane, not only can effectively capture various tiny droplets in the oil smoke, reaches efficient purification purpose; Adopt the surface modification filter membrane, cover one deck hydrophobicity air-permeable surface activating agent at the filtrate fiber surface, make this filtrate have lipophile preferably, can improve the trapping ability of trickle oil droplet, the pressure that reduces the air current flow process falls, avoid manually cleaning range hood simultaneously, this film can use 2-3 month continuously, the periodic replacement filtrate.
2, under the low temperature plasma invigoration effect, can make negative electrical charge on the oil smoke drop band, under the effect of electrostatic force, adsorbed, thereby reach the purpose of efficient purification by anode electrode.Plasma can produce a large amount of free electrons, ion, living radical and multiple excitation state free particle simultaneously, contain a large amount of active atomic oxygen, have higher active-energy, can effectively decompose pernicious gas composition in the oil smoke, to reach the real innoxious purpose that removes of kitchen flue gas.
3, the present invention adopts stainless steel material to do electrode, can effectively avoid electrode corrosion, and electric quantity consumption is low.
4, this cooking fume remover is simple in structure, easy to maintenance, does not need washing, is a kind of device of dry cleaning kitchen fume, not only can be used for the fume purifying in hotel, restaurant, dining room, also can be applicable to large-scale central air conditioner system gas purification.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is the structural representation of stainless (steel) wire of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is done to describe further by embodiment.
Embodiment 1:
Referring to Fig. 1, low-temperature plasma synergistic surface modification filter membrane purifies cooking fume purifier and comprises gas skirt 20, and gas skirt 20 tops are being communicated with blast pipe by bend pipe 1, and the exit of blast pipe is equipped with rainhat 10.
The working face of gas skirt 20 is installed stainless (steel) wire 16, and stainless (steel) wire 16 is provided with filter membrane 17, and gas skirt 20 lower limb invaginations form first order oil-collecting tank 18.Stainless (steel) wire 16 is radial net, is furnished with " rice " font stainless steel strip 21 at the inner surface of this net, sees Fig. 2; This stainless (steel) wire both can play reinforcement effect, can be used as the deflector of interception greasy dirt again, and the liquid greasy dirt of filter membrane 17 surface interceptions can be flow in the oil-collecting tank 18 at gas skirt edge along radial stainless (steel) wire.Filter membrane 17 is a base material with heatproof chemical fibre non-woven mat, and its surface-coated or soak the surfactant layer of mixed liquors such as alkyl sulfonate, this dish, tween makes it have the oleophylic function, helps mist of oil and adsorbs on its surface and be blocked.After this filter membrane used 2-3 month, its resistance increased gradually, can the convenient removal of this filter membrane be pasted a new filter membrane again, thereby be avoided lampblack absorber to clean.
Secondary oil sump tank 13 has been installed in series on the blast pipe.The end that three pairs of interlaced parallel positive plates 15 and 14, three positive plates 15 of minus plate are installed in this secondary oil sump tank 13 end of 3, three minus plates 14 of the anode terminal cathode terminal 6 that is being connected in parallel that is being connected in parallel; Angle between positive plate 15 and minus plate 14 and the horizontal plane is 7 degree (angular range is the 5-12 degree), and the liquid greasy dirt that this inclination angle is convenient to be enriched on the electrode plate surface flows all minus plate ground protections; Spacing is 15mm (adjustable range is 10-45mm) between adjacent plate.The positive plate material is a stainless steel, and the minus plate material is a carbon fiber woven roving fiber glass epoxy.
Anode terminal 3 and cathode terminal 6 lay respectively at the outside of secondary oil sump tank 13, the high voltage pulse discharge plasma generator 5 of connecting between anode terminal 3 and the cathode terminal 6, the voltage of this high voltage pulse discharge plasma generator 5 is 10-20kV, and frequency is 100-200Hz; Connect AC power 4 during work.Secondary oil sump tank 13 bottoms one side is provided with oil-out 11, and oil-out 11 places are equipped with draining valve 12.
Secondary oil sump tank 13 axial ends are air inlet, and the other end is an air outlet; Its air inlet end is being connected bend pipe by high pressure resistant insulation pad 2 with flange-interface, its air outlet is being connected blast pipe by the high pressure resistant insulation pad with flange-interface 7 equally, on the blast pipe in the secondary oil sump tank 13 air outlets outside blower fan 8 and volume damper 9 is installed successively.
During work, (gas flow is at 1200-11000Nm for oil smoke
3/ h scope) enter cooking fume remover through gas skirt 20, the liquid greasy dirt that captures through filter membrane 17 flows to one-level oil-collecting tank 18, and gets rid of through one-level oil drain out 19.After the preliminary purification of the oil smoke process first order, enter secondary oil sump tank 13 through bend pipe 1 and carry out the purified treatment second time, enter blower fan 8 through the flue gas behind the two-step purification, on the blast pipe of blower fan 8 outlets, volume damper 9 is installed, can adjust the air quantity and the blast of whole system; Flue gas after being purified is removed outdoor through row of conduits.
Embodiment 2:
A pair of interlaced parallel positive plate 15 and minus plate 14 are installed in the secondary oil sump tank 13, and the positive plate material is an aluminium.
Other is with embodiment 1.
Claims (6)
1, oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane comprises gas skirt, blast pipe and blower fan, and the gas skirt top is communicated with blast pipe by bend pipe, and the exit of blast pipe is provided with rainhat, it is characterized in that:
The working face of described gas skirt is provided with stainless (steel) wire and filter membrane successively, and its lower limb is provided with the oil-collecting tank of groove shape;
Series connection is provided with the secondary oil sump tank on the described blast pipe, be provided with the positive plate and the minus plate that are parallel to each other more than a pair of in the described secondary oil sump tank, anode terminal and cathode terminal lay respectively at the outside of secondary oil sump tank, the high voltage pulse discharge plasma generator of connecting between described anode terminal and the cathode terminal; Secondary oil sump tank bottom one side is provided with oil-out;
A secondary oil sump tank axial end corresponding with described bend pipe is air inlet, and the other end is an air outlet; Described blower fan is positioned at the air outlet place of secondary oil sump tank; The exhaust outlet place is provided with volume damper.
2, oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane according to claim 1, it is characterized in that: described a pair of above interlaced parallel positive plate and the angle between minus plate and the horizontal plane are the 5-12 degree, and spacing is 10-45mm between adjacent plate.
3, oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane according to claim 1 and 2, it is characterized in that: be provided with three pairs of interlaced parallel positive plates and minus plate in the described secondary oil sump tank, one end of the three positive plates anode terminal that is being connected in parallel, an end of the three minus plates cathode terminal that is being connected in parallel.
4, oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane according to claim 1 is characterized in that: described stainless (steel) wire at the gas skirt working face is radial net, is furnished with " rice " font stainless steel strip at the inner surface of this net.
5, oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane according to claim 1, it is characterized in that: described filter membrane material is a heatproof chemical fibre non-woven mat, heatproof chemical fibre non-woven mat surface is provided with surfactant layer, and described surfactant is the mixed compound of alkyl sulfonate and/or this dish and/or tween.
6, oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane according to claim 1 is characterized in that: described positive plate material is aluminium or titanium or stainless steel, and the minus plate material is a carbon fiber woven roving fiber glass epoxy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101449159A CN101653683B (en) | 2009-09-11 | 2009-09-11 | Oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101449159A CN101653683B (en) | 2009-09-11 | 2009-09-11 | Oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101653683A true CN101653683A (en) | 2010-02-24 |
| CN101653683B CN101653683B (en) | 2011-07-27 |
Family
ID=41708267
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101449159A Expired - Fee Related CN101653683B (en) | 2009-09-11 | 2009-09-11 | Oil and smoke purifier of low-temperature plasma synergistic modified filtering membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101653683B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102188885A (en) * | 2011-03-22 | 2011-09-21 | 苏州超等环保科技有限公司 | Low temperature plasma oil fume treatment equipment |
| CN102218249A (en) * | 2010-04-13 | 2011-10-19 | 哈尔滨盛迪电力设备有限公司 | Electrostatic extrusion-type oil mist purifying machine |
| CN102384476A (en) * | 2011-11-24 | 2012-03-21 | 赵桐斌 | Self-preheating combustor used on fuel gas caloric value instrument |
| CN102401407A (en) * | 2011-11-10 | 2012-04-04 | 宁波方太厨具有限公司 | Electrostatic lampblack removing device of range hood |
| CN103785276A (en) * | 2014-01-24 | 2014-05-14 | 北京航空航天大学 | Method and device for purifying catering oil smoke by utilizing synergistic effect of low temperature plasma and catalysts |
| CN103994483A (en) * | 2014-04-18 | 2014-08-20 | 南通大学 | Method for purifying cooking oil fumes through rare earth catalysis low-temperature plasma technology, and apparatus thereof |
| CN104001625A (en) * | 2014-05-23 | 2014-08-27 | 大连兆和科技发展有限公司 | Easily-washed oil mist purifier core body and manufacturing method thereof |
| CN104019479A (en) * | 2014-05-13 | 2014-09-03 | 安徽新空电子科技有限公司 | Kitchen oil fume purifier |
| CN105057109A (en) * | 2015-08-07 | 2015-11-18 | 浙江大学 | Wire-plate high-temperature electrostatic dust remover for clearing dust by adopting particle flushing, and method thereof |
| CN106152286A (en) * | 2016-08-16 | 2016-11-23 | 安徽奥创环境检测有限公司 | A kind of removable convulsion filter mantle |
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| KR102255244B1 (en) * | 2020-12-17 | 2021-05-26 | 주식회사 메이트컴퍼니 | Filter device for air intake ducts and air intake duct equipment |
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- 2009-09-11 CN CN2009101449159A patent/CN101653683B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218249A (en) * | 2010-04-13 | 2011-10-19 | 哈尔滨盛迪电力设备有限公司 | Electrostatic extrusion-type oil mist purifying machine |
| CN102218249B (en) * | 2010-04-13 | 2013-12-18 | 哈尔滨盛迪电力设备有限公司 | Electrostatic extrusion-type oil mist purifying machine |
| CN102188885B (en) * | 2011-03-22 | 2013-07-10 | 苏州超等环保科技有限公司 | Low temperature plasma oil fume treatment equipment |
| CN102188885A (en) * | 2011-03-22 | 2011-09-21 | 苏州超等环保科技有限公司 | Low temperature plasma oil fume treatment equipment |
| CN102401407A (en) * | 2011-11-10 | 2012-04-04 | 宁波方太厨具有限公司 | Electrostatic lampblack removing device of range hood |
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