CN2514897Y - Oil-fume purifier for kitchen - Google Patents
Oil-fume purifier for kitchen Download PDFInfo
- Publication number
- CN2514897Y CN2514897Y CN 01247325 CN01247325U CN2514897Y CN 2514897 Y CN2514897 Y CN 2514897Y CN 01247325 CN01247325 CN 01247325 CN 01247325 U CN01247325 U CN 01247325U CN 2514897 Y CN2514897 Y CN 2514897Y
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- foam
- foam maker
- tower body
- oil smoke
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/04—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour through foam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A smoke purifier for kitchen use relates to a tower body which is provided with an air supply opening and an air exhaust opening, a layer or multiple layers of foam generators are fixed in the tower body. During operation, oil smoke flow goes through a plurality of eyelets and a great quantity of absorption liquid to form foam layers which are strong motorial and very unstable. Along with the strong movement of foams, the effects such as inertial collision, diffusion, adherence, dissolution and the like between oil smoke droplets and foam liquid films are finished, which leads to the purification of oil smoke. The equipment has the advantages of high purification efficiency of oil smoke, low cost, compact structure, small volume, high reliability and security.
Description
The utility model belongs to the purification techniques field of pollutants such as cigarette, gas, is specifically related to a kind of cooking fume purifier for kitchen.
In the kitchen oil fume purifying field, relatively successful cooking fume control equipment mainly contains following several mode: 1) Electrostatic Absorption method at present; 2) fiber absorption method; 3) WATER-WASHING METHOD.Kitchen fume is grease, the organic matter that volatilizees in the food cooking process and adds thermal decomposition or the product of cracking that this product has stronger viscosity, light current and hydrophobicity.
The Electrostatic Absorption method be exactly utilize the oil smoke droplet with light current, adopt the technology of high-pressure electrostatic dust suction to adsorb oil smoke, reach the purpose of fume purifying.But, because the working environment in kitchen is relatively moister, need high-pressure electrostatic in the work, in order to guarantee safe working environment and to realize rational purifying rate, make that the cost of this equipment is higher bigger with volume.
The fiber absorption method is a characteristic of utilizing the good oil suction that part chemical fibre or natural fiber have, and oil smoke is injected in the casing that is full of oil suction fibre, by the filtration and the suction-operated of oil suction fibre, reaches the purpose of purifying oil fume.But the pressure loss of oil smoke oil smoke air-flow by fibrage the time is bigger, has improved the cost of kitchen oil fume purifying system; Simultaneously,, must improve the surface area of oil suction fibre, cause the cooking fume remover volume bigger in order to guarantee reasonably fume purifying rate; In addition, oil smoke has extremely strong viscosity, and it is not easily separated to make that oil smoke is adsorbed in the fiber, thereby influences the operating efficiency of cooking fume remover.
WATER-WASHING METHOD, what use at present mainly is that oil smoke is injected in the casing of spray head, utilizes droplet or the water droplet and the oil smoke droplet collision absorption of spray head ejection, thereby reaches the purification purpose.But the size of oil smoke droplet minimum (most of below 5um) will improve the probability of collision absorption, need to increase the quantity of spray head on the one hand, need to improve the pressure and the flow of spray pump on the other hand, thereby cause the volume of clarifier bigger, expense (containing maintenance cost) is higher.
The purpose of this utility model is the deficiency that exists at prior art, and a kind of purification efficiency height, volume is little, safe and reliable and economy is good cooking fume purifier for kitchen are provided.
Cooking fume purifier for kitchen is that a cross section is rectangle, circle or other Any shape, but the tower body of rectangle preferably.Be provided with air inlet and exhaust outlet in tower body, in the gas channel that air inlet in tower body and the oil smoke air-flow between the exhaust outlet must be flowed through, be fixed with one deck or multi-layered foamed generator, foam maker is the porous system that the oil smoke air-flow must pass.Foam maker is in when work, and all can produce on the aperture of foam must be coated with the continuous adsorption liquid that a layer thickness is h.The porous system of foam maker can be the sieve plate of porous, the pipeline of porous, bubble tower or the porous system of other form, the preferably sieve plate of porous of porous.All of the porous system of foam maker can produce the plane at the end face in effective hole of foam or axial line place can level or tilt to install, and preferably level is installed.The cross sectional shape in the hole of the porous system of foam maker can be circle, bar shaped, square or other Any shape, and the optimal cross section shape is circular.The effective cross-sectional area that can produce foam in the hole of the porous system of foam maker should be controlled in the sectional area scope that is equivalent to circular hole Φ 1～Φ 10, and Optimal Control is in the scope that is equivalent to circular hole Φ 3～Φ 6.All of the porous system of foam maker can produce the aperture of foam, and in when work, the numerical value of the thickness h of the adsorption liquid that must cover is greater than 0 less than 20mm, and the numerical value of optimum thickness h is 2～4mm.All net sectional area sums that can produce effective hole of foam of foam maker should be 8～50% of tower body sectional area, and Optimal Control is in 20～35% calculated value.It is in the calculated value of 0.8～5 meter per second that the size of the area of section of tower body is controlled at the flow velocity of oil smoke air-flow in tower body, and Optimal Control is in the calculated value of 1～3 meter per second.Also be provided with demister in the gas channel that oil smoke air-flow between foam maker and exhaust outlet must pass through in addition.
Adsorption liquid of the present utility model is a formulated, its main component is water, have the surface-active Ji and the glycol ether (perhaps diethylene glycol (DEG) ether) of foaming effect, wherein have the surface-active Ji of foaming effect and the content of glycol ether (perhaps diethylene glycol (DEG) ether) and be respectively 0～15% and 0～25%, surface-active Ji preferably 0.001～1%, glycol ether preferably 2～6% is wherein to adopt anionic surface activity Ji and EGME the best.
When cooking fume purifier for kitchen is started working, general water pump is in the pond of tower body bottom, by pipeline sufficient adsorption liquid is supplied in the porous system of foam maker, the gas pressure of the pending oil smoke air-flow that flows into by air inlet, hinder the porous system of adsorption liquid by foam maker and freely flowed back at the bottom of the tower, and in the porous system of foam maker, formed the continuous liquid of the porous system that has sealed foam maker.In the porous system of foam maker overflow valve is housed, the thickness that is used for the adsorption liquid that control hole fastens is h.Under the installation situation that has,, but under the effect of air pressure, also can form the hole and fasten the adsorption liquid that thickness is h without the lifting of water pump.Pending oil smoke air-flow is by means of the kinetic energy of gas, and to the surface tension of liquid acting, the formation strong movements, unsettled, thickness can reach the above froth bed of 30cm.These foams not only quantity are very big, and bring in constant renewal in, thereby formed continuous variation, motion, surface area even can reach thousands of square metres adsorbed film, the oil smoke droplet mainly by means of with the effects such as inertial collision, diffusion, adhesion and dissolving of liquid film, thereby realize the high efficiency purification of oil smoke.This froth bed can be divided into three different zones.Near the sieve plate bottom be bubbling area, it comprises the porous components of system as directed of foam maker and presses close to the absorption liquid layer of porous system, bubble is because soot gas passes through continuous adsorption liquid forms.In this zone because all net sectional area sums that can produce effective hole of foam of foam maker only are tower body sectional area part even 1/tens, the flow velocity of soot gas has increased several times even tens times rapidly in the porous system of foam maker, certainly, the movement velocity of the oil smoke droplet in the soot gas has also increased several times even tens times, on the end face in foam maker hole, soot gas is with powerful flow velocity, air pressure impacts continuous adsorption liquid, thereby in the porous system of foam maker, heave vesicle one by one, vesicle is constantly grown up under the effect of airflow, the strength of the foam maker of foam disengaging simultaneously porous system is also increasing, and final foam launches with great speed and forms froth zone.Be exactly froth zone above the bubbling area, thickness can reach more than the 30cm, and it comprises under the adsorption liquid liquid level part on part and the liquid level.During part, the foam speed of just having launched is very big under the adsorption liquid liquid level, and the sectional area of gas channel recovers normal again suddenly on the one hand, and requiring air velocity is that the foam movement velocity reduces; Foam motion has run into the great resistance of liquid in adsorption liquid on the other hand, and under this effect aspect two, the foam movement velocity reduces rapidly.On the adsorption liquid liquid level during part, the rapid reduction of foam movement velocity mainly is subjected to the sectional area of gas channel to recover the influence of the resistance of the resistance of gravity, air of normal, foam itself and other foam.The foam movement velocity has reduced rapidly, but under action of inertia, the movement velocity of oil smoke droplet does not reduce synchronously in the foam, so, the oil smoke droplet is with the top liquid film of great movement velocity bump foam, the oil smoke droplet is just along with strong foam motion in the district, finish and liquid film between effects such as inertial collision, diffusion, adhesion and dissolving, local area is the groundwork district of fume purifying.Partly very big on part and the liquid level under the adsorption liquid liquid level of froth zone to the loss difference of air pressure, the former to the loss of air pressure much larger than the latter, the thin more good more reason of thickness of the adsorption liquid in Here it is the utility model in the porous system that guarantees to generate foam maker under the situation of foam.Topmost one deck is the mist district, has a certain amount of adsorption liquid to splash and form this district along with breaking of foam.For preventing that mist from flying out from exhaust outlet, in the gas channel between foam maker and exhaust outlet demister is housed.At last, the cleaning gas tream that has passed demister is discharged from exhaust outlet.
Advantage of the present utility model and tangible good effect thereof: 1) the purification efficiency height of oil smoke, foam maker also can reach 90% purifying rate under the situation that individual layer is installed.2) cost is low, and this device structure is simple, and manufacturing expense, maintenance cost are low, and good and economic is arranged.3) volume is little, and this compact equipment can adapt to the nervous situation of kitchen space.4) reliability, safe, operation principle of this equipment and stable structure have determined it safe and reliable.
Elaborate below in conjunction with drawings and Examples 1, embodiment 2, embodiment 3 and 4 pairs of present technique of embodiment.
Fig. 1 is the schematic diagram of embodiment 1.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the schematic diagram of embodiment 2.
Fig. 4 is that the C of Fig. 3 is to view.
Fig. 5 is the B-B view of Fig. 4.
Fig. 6 is the schematic diagram of embodiment 3.
Fig. 7 is the schematic diagram of embodiment 4.
Fig. 8 is the D-D view of Fig. 7.
Embodiment 1, and referring to Fig. 1, the shell of clarifier is made the tower body 2 that the cross section is a rectangle.Horizontal fixed has foam maker 5 in the air inlet 7 of tower body 2 and the gas channel between the exhaust outlet 1, foam maker 5 is porous sieve plates of level, soot gas to be clean enters in the tower from air inlet 7, in order to make the oil smoke air-flow on foam maker plate 5, produce foam comparatively uniformly, the size of air inlet 7 should be bigger, and foam maker 5 following tower body spaces are also tried one's best bigger.The oil smoke air-flow is upward through numerous apertures of foam maker 5, form the extremely unsettled foam of strong movements on continuous adsorption liquid surface, foam moves upward, finished absorption to the oil smoke droplet, final foam breaks, air-flow passes through the mist layer and is upward through demister 3, and the circulation of air of the cleaning after the final purification is crossed exhaust outlet 1 and discharged.Adsorption liquid 13 is loaded in the pond of this tower body 2 bottoms, it is to promote by pump 11, by pipeline 8, overfall 4 through being positioned at foam maker 5 tops flows on the foam maker 5, and under the gas pressure of the oil smoke air-flow that rises, can not be freely flow back to pond at the bottom of the tower, but be distributed in foam maker 5 tops equably by sieve aperture, the continuous liquid of foam maker 5 holes systems has been sealed in formation, for medium has been created in the formation of foam.The big metering-orifice that a part of adsorption liquid 13 still can pass through foam maker 5 is to flow back at the bottom of the tower, and another part adsorption liquid 13 flows back at the bottom of the tower by being arranged at the overflow valve 6 on foam maker 5 limits.Can understand the quality and the water level situation of adsorption liquid 13 by observation window 10, should upgrade in the time of suitably or replenish.Waste liquid can flow out from draining valve 12, and fresh adsorption liquid can be added by water inlet 9.
The Important note of this cooking fume remover:
1) selection of tower body 2 comprises shape and big or small two aspects.The cross section of tower body 2 is rectangle preferably, also can be circular or other shape.In order to guarantee purification efficiency, the flow velocity of flue gas stream in tower body is 0.8～5 meter per second, 1～3 meter per second preferably, and calculate the size of tower body sectional area with this.
2) hole of foam maker 5 system is the device that generates foam, is the most complicated part of the present invention, below from the explanation of several aspects:
(1) shape in the hole of the hole of foam maker 5 system, preferably circular, also can be bar shaped, square or other Any shape.
(2) size in the hole of the hole of foam maker 5 system, the sectional area in the hole of the hole system of foam maker 5 should be controlled in the sectional area scope that is equivalent to circular hole Φ 1～Φ 10, preferably is controlled in Φ 3～Φ 6 scopes.Kong Yuexiao, the foam of generation is more little, and the quantity of foam is many more, and the motion of foam is strong more, and purifying rate is high more, but the pressure loss is also big more.
(3) quantity in the hole of the hole of foam maker 5 system, the sectional area sum in the hole of the hole system of foam maker 5 should be 8～50% of tower body 2 sectional areas, and calculates the quantity in hole with this.The hole is few more, and the foam of generation is more little, and the quantity of foam is many more, and the motion of foam is strong more, and purifying rate is high more, and the pressure loss is also big more.
(4) error in the hole of foam maker 5 and its hole system, the sieve plate of foam maker 5 should be done smooth smoothly, must not be jagged, phenomenons such as deflection, gage distortion, the hole is that manufacturing tolerance should be not more than ± 0.5mm.
(5) installation of foam maker 5, sieve plate should keep level when installing, and must not stitch seepage being connected between sieve plate and the tower body 2.Require under the extra high situation at purifying rate, two-layer or two-layer above sieve plate can be installed.
(6) effective hole and effective cross-section, by means of the B-B of Fig. 4 to zoomed-in view, be Fig. 5, can see a, b, c and four apertures of d, the a hole is a normal aperture of the porous system that must pass of the oil smoke air-flow of foam maker 5, it can equally produce foam to numerous apertures when work, is the effective hole that can work; In the same horizontal plane at axial line place, a hole, it is too little with respect to a hole though the b hole coexists, and form the air pressure that foam must be higher, so the b hole can not produce foam, is the non-effective hole that can not work; Though the c hole is equally big with a hole, its position is too low, forms the air pressure that foam also must be higher, so the c hole can not produce foam, is the non-effective hole that can not work; The d hole can produce foam, is effective hole, but it can not can both produce foam as whole hole, a hole, when work, only there is the semi-circular portions on top can produce foam, other parts are work not, and its effective cross section only be a semicircle, considers with semicircle when the effective area of this hole of calculating.In the utility model, effective hole that can produce foam exactly that the hole of foam maker 5 means; The cross sectional shape in the hole of the hole system of foam maker 5, the partial cross section shape that can produce foam in the effective hole that can produce foam exactly that refers to; The area of section in the hole of the hole system of foam maker 5, the partial cross section area that can produce foam in the effective hole that can produce foam exactly that refers to.
3) overflow valve 7, referring to Fig. 2, are that the minimum distance that the hole of control foam maker 5 is tied to the adsorption liquid liquid level is h, and the value of general h is 0～20mm, and the h optimum height of this device is 2～4mm.This is that this device needs one of important technological parameters of controlling.This is under the precondition that realizes generation stable foam layer, reduces the pressure loss of oil smoke air-flow to greatest extent.
4) effect of pump 4 is that generation for foam provides medium, and its flow should guarantee that liquid, gas ratio must not be less than 1: 50, otherwise is unfavorable for the generation of foam.
5) demister 3 is the adsorption liquids that splash in order to remove, and makes that what discharge from exhaust outlet 1 is the air-flow of cleaning.It is installed between the gas channel of foam maker 5 and exhaust outlet 1.
6) the used adsorption liquid of this clarifier is a formulated, its main component is water, have the surface-active Ji and the glycol ether (perhaps diethylene glycol (DEG) ether) of foaming effect, wherein having the surface-active Ji of foaming effect and the content of glycol ether (perhaps diethylene glycol (DEG) ether) is respectively 0～15% and 0～25%, surface-active Ji preferably 0.001～1%, glycol ether preferably 2～6% is wherein to adopt anionic surface activity Ji and EGME the best.Introduction has the surface-active Ji of foaming effect and the effect of glycol ether (perhaps diethylene glycol (DEG) ether) respectively below:
(1) effect of surface-active Ji: add the surface-active Ji with foaming effect of trace in the adsorption liquid 13, this device will obviously improve purifying rate.Why the present invention can only adopt one deck as thin as a wafer, rather than thicker adsorption liquid 13, just is the mystery effect of the surface-active Ji with foaming effect of these trace.At first, most surface-active Ji all has foaming capacity, and on the one hand, the surface area of liquid increases when foam forms, and the surface-active Ji can reduce surface tension, helps capillary balance when foam forms, and is presented as easy foaming; On the other hand, the surface-active Ji molecule that is adsorbed on the bubble film plays a part surface " reparation " to liquid film, make foam have good stable, improved the life-span of foam in this device, when making work whenever, the total amount that exists of foam promotes significantly, can clearly see froth bed thickness and promote more than the 10cm.Prolonged life-span after foam leaves liquid level just because of surface-active Ji, make that the oil smoke droplet is free, after foam leaves liquid level before the lather collapse, inertial collision between generation and liquid film reaches the purpose of purification, inertial collision takes place in feasible water layer by means of thicker adsorption liquid, and the purpose that reaches purification becomes not too economical.Secondly, the surface-active Ji has also improved the quality that foam generates, the surface-active Ji has lubrication, can reduce the oil smoke air communication and cross the resistance of foam maker 5 porous systems, improve the pressure loss that the oil smoke air communication is crossed foam maker 5 porous systems on the one hand, on the other hand, making that foam is easier breaks away from from foam maker 5 porous systems, shortened the time that foam generates relatively, the foam size of generation reduces, and the density of foam increases, the life-span of foam prolongs (vesicle is not easy to break than bulla), not only make the long-pending first mate's degree of foam surface in the unit volume increase, and promoted total surface area significantly, improved clean-up effect.At last, the surface-active Ji has improved the effect of the absorption of 13 pairs of oil smoke droplets of adsorption liquid.Surface-active Ji is a kind of compound of specific type, oleophylic/hydrophilic structure is arranged and can be by preferential adsorption to many interfaces in its molecule, and this is its basic reason that is widely used in the field of washing.In the fume purifying process, the oil smoke droplet is by means of the liquid film contact of inertial collision with foam, and oleophilic moiety in the surface-active Ji molecule in the liquid film is adsorbed onto rapidly on the oil smoke droplet, has increased the suction-operated of foam to the oil smoke droplet, has improved purifying rate.
(2) effect of glycol ether or diethylene glycol (DEG) ether: the oil smoke droplet is that the grease with volatilization is the fine droplet of main component, and one of its fundamental property is a hydrophobicity, the reason of Here it is profit indissoluble.Improve water and oily affinity though in water, added the surface-active Ji, can improve the suction-operated of adsorption liquid to the oil smoke droplet, but this improvement is inappreciable, this guarantees just can be adsorbed onto in the liquid film after the oil smoke droplet is with the liquid film inertial collision of foam in can not be to greatest extent, can not adsorb after might colliding and reduces purifying rate.But, in adsorption liquid, add an amount of glycol ether or diethylene glycol (DEG) ether after, radical change the affinity of adsorption liquid to oil, adsorption liquid has become numerous organic good molten Ji such as grease, character has become strong lipophile by oleophobic property.The adsorption liquid of in water, preparing behind the EGME of adding 5%, even can realize the miscible of arbitrary proportion with grease.After in adsorption liquid, adding an amount of glycol ether or diethylene glycol (DEG) ether like this,, improve purification efficiency with increasing substantially the suction-operated of oil smoke droplet after with the inertial collision of bubble film.From more rational performance and price recently, adopt 2～6% EGME solution as adsorption liquid the best.
Claims (10)
1. cooking fume purifier for kitchen, comprise tower body (2), air inlet (7), exhaust outlet (1), it is characterized in that in the gas channel that the oil smoke air-flow in the tower body (2) between air inlet (7) and the exhaust outlet (1) must flow through, be fixed with one deck or multi-layered foamed generator (5), foam maker (5) is the porous system that the oil smoke air-flow must pass, foam maker (5) is in when work, and all can produce on the little bundle of foam must be coated with the continuous adsorption liquid (13) that a layer thickness is h.
2. cooking fume purifier for kitchen according to claim 1, the porous system that it is characterized in that foam maker (5) can be the sieve plate of porous, the pipeline of porous or the bubble tower of porous, and the end face in all effective holes of the porous system of foam maker (5) or the plane at axial line place can the level or the installations of tilting.
3. cooking fume purifier for kitchen according to claim 2, the porous system that it is characterized in that foam maker (5) is the sieve plate of porous preferably, and install on the end face in all effective holes of the porous system of foam maker (5) or the plane at axial line place preferably level.
4. according to claim 1,2 or 3 described cooking fume purifier for kitchen, the cross sectional shape in hole that it is characterized in that the porous system of foam maker (5) can be circular, bar shaped or square, the effective cross-sectional area that can produce foam in the hole of the porous system of foam maker (5), should be controlled in the sectional area scope that is equivalent to circular hole Φ 1～Φ 10, all of the porous system of foam maker (5) can produce the aperture of foam, when work, the numerical value of the thickness h of the adsorption liquid (13) that must cover is less than 20mm greater than 0.
5. cooking fume purifier for kitchen according to claim 4, the optimal cross section shape in hole that it is characterized in that the porous system of foam maker (5) is circular, the effective cross-sectional area Optimal Control that can produce foam in the hole of the porous system of foam maker (5) is in the scope that is equivalent to circular hole Φ 3～Φ 6, and all of the porous system of foam maker (5) can produce the optimum thickness h of the adsorption liquid (13) that must be coated with on the aperture of foam when work numerical value is 2～4mm.
6. according to claim 1,2,3 or 5 described cooking fume purifier for kitchen, the cross section that it is characterized in that tower body (2) is rectangle or circle, and it is in the calculated value of 0.8～5 meter per second that the size of tower body (2) area of section is controlled at the flow velocity of oil smoke air-flow in tower body.
7. according to claim 1,2,3 or 5 described cooking fume purifier for kitchen, the cross section that it is characterized in that tower body (2) is rectangle preferably, and the size of tower body (2) area of section preferably is controlled in the calculated value of flow velocity 1～3 meter per second of oil smoke air-flow in tower body.
8. according to claim 1,2,3,5 described cooking fume purifier for kitchen, it is characterized in that also being provided with demister (3) in the gas channel that the oil smoke air-flow between foam maker (5) and exhaust outlet (1) must pass through.
9. according to claim 1,2,3,5 described cooking fume purifier for kitchen, it is characterized in that all net sectional area sums that can produce effective hole of foam of foam maker (5) should be 8～50% of tower body (2) sectional area.
10. cooking fume purifier for kitchen according to claim 9, it is characterized in that foam maker (5) all can produce foam effective hole the net sectional area sum preferably tower body (2) sectional area 20～35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247325 CN2514897Y (en) | 2001-08-16 | 2001-08-16 | Oil-fume purifier for kitchen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247325 CN2514897Y (en) | 2001-08-16 | 2001-08-16 | Oil-fume purifier for kitchen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2514897Y true CN2514897Y (en) | 2002-10-09 |
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ID=33658204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247325 Expired - Fee Related CN2514897Y (en) | 2001-08-16 | 2001-08-16 | Oil-fume purifier for kitchen |
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| Country | Link |
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| CN (1) | CN2514897Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268815A (en) * | 2018-09-15 | 2019-01-25 | 叶会友 | A kind of automated biological matter particles combustion furnace |
-
2001
- 2001-08-16 CN CN 01247325 patent/CN2514897Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268815A (en) * | 2018-09-15 | 2019-01-25 | 叶会友 | A kind of automated biological matter particles combustion furnace |
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