CN103968438B - The energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange - Google Patents
The energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange Download PDFInfo
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- CN103968438B CN103968438B CN201410228105.2A CN201410228105A CN103968438B CN 103968438 B CN103968438 B CN 103968438B CN 201410228105 A CN201410228105 A CN 201410228105A CN 103968438 B CN103968438 B CN 103968438B
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- lampblack absorber
- orifice plate
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Abstract
The energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange, it relates to a kind of lampblack absorber. The object of the invention is that Indoor Thermal air is taken away in time smoke evacuation in order to solve use in winter lampblack absorber, the energy that negative pressure sucks 60%-70% in energy loss that outdoor cold air causes and combustion gas can not be utilized and the problem that wastes. The upper end of housing of the present invention is respectively equipped with valve port and air inlet, non-return valve is fixedly mounted on valve port, the side wall upper part of housing is provided with maintenance window, cover plate detachable cover is contained on maintenance window, the bottom of cover plate is provided with venthole, and orifice plate is vertically arranged in the inner chamber of housing, and the inner chamber of housing is divided into air side and fume side, many heat pipes can plug and be horizontally set on orifice plate in the mode of rectangular array, and the every heat pipe equal intervals near air side is set with multiple fins. The present invention is for the suction to kitchen gas stove oil smoke.
Description
Technical field
The present invention relates to a kind of lampblack absorber, be specifically related to the energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange.
Background technology
In the northern area of China, reach half a year winter, indoor/outdoor temperature-difference reaches 50 DEG C. When cooking-fume exhauster work, causeIndoor and outdoor pressure reduction, causes cold air infiltration capacity to increase. Indoor 20 DEG C of above hot-airs are drawn out of, DEG C left and right, outdoor-30Cold air is inhaled into, if the every task of smoke exhaust ventilator 30 minutes will have at least 2.3 × 104The heat energy of kj is wasted;Because the integrated heat efficiency of China's gas kitchen ranges is lower, in fuel, there is the energy of 60%-70% can not be utilized and drain with flue gas,Also cause serious waste.
Summary of the invention
The object of the invention is that Indoor Thermal air is taken away in time smoke evacuation in order to solve use in winter lampblack absorber, the outer cold sky of negative pressure suction chamberIn the energy loss that gas causes and combustion gas, the energy of 60%-70% can not be utilized and the problem that wastes. And then provideThe energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange, and use oil-stain-preventing coating to protect the heat transmission equipment of its inside.
Technical scheme of the present invention is: the energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange, it comprises housing and non-return valve, described shellBody is rectangular case, and described lampblack absorber also comprises cover plate, orifice plate, many heat pipes and multiple fin, and establish respectively the upper end of housingHave valve port and air inlet, non-return valve is fixedly mounted on valve port, and the side wall upper part of housing is provided with maintenance window, and cover plate is detachableMount cover on maintenance window, the bottom of cover plate is provided with venthole, and orifice plate is vertically arranged in the inner chamber of housing, in housingChamber is divided into air side and fume side from right to left, and many heat pipes can plug and be horizontally set on orifice plate in the mode of rectangular array,The every heat pipe equal intervals near air side is set with multiple fins.
The present invention also provides a kind of exhaust ventilation heat exchange energy-conservation lampblack absorber, comprises housing and non-return valve, described housing be withThe housing of outer projection, described lampblack absorber also comprises cover plate, orifice plate, many heat pipes and multiple fin, the upper end of housing is respectivelyBe provided with valve port and air inlet, the housing under air inlet is provided with venthole, and non-return valve is fixedly mounted on valve port, housingSide wall upper part be provided with maintenance window, cover plate detachable cover be contained in maintenance window on, orifice plate is vertically arranged in the inner chamber of housing,The inner chamber of housing is divided into air side and fume side from left to right, and many heat pipes can plug level be established in the mode of rectangular arrayPut on orifice plate, the every heat pipe equal intervals near air side is set with multiple fins.
The present invention also provides a kind of exhaust ventilation heat exchange energy-conservation lampblack absorber, comprises housing and non-return valve, and described housing is rectangleHousing, described lampblack absorber also comprises cover plate, orifice plate, many heat pipes and multiple fin, the upper end of housing is respectively equipped with valve port,The both sides of housing are provided with gas outlet and air inlet, and non-return valve is fixedly mounted on valve port, and the side wall upper part of housing is provided with access panelMouthful, cover plate detachable cover is contained on maintenance window, and orifice plate is horizontally set in the inner chamber of housing, and the inner chamber of housing is divided intoAir side and fume side, many heat pipes can plug and vertically be arranged on orifice plate in the mode of rectangular array, and every near air sideHeat pipe equal intervals be set with multiple fins.
The present invention compared with prior art has following effect:
1. the present invention adopts plug-in heat exchange of heat pipe structure, utilizes smoke discharging residual heat to heat the fresh cold air being pressed into by negative pressure,Realize the utilization of oil smoke used heat, and solved outdoor cold wind and infiltrate the problem of the air-conditioning that causes and the aggravation of heating equipment new wind load.Lampblack absorber work 30 minutes, can save 3-5 degree electricity, reclaims the oil smoke waste heat of 50%-60%, and then realizes and save asking of the energyTopic. Meanwhile, also solve the negative pressure forming while work by smoke exhaust ventilator and caused the anti-taste of sewer, window bad seals, having taken outDegradation problem under the smoke discharging effect of cigarette cigarette machine, and can improve to a certain extent the separating degree of oil smoke. Plug-in heat pipe is convenient to clearlyWash and safeguard.
2. the present invention realizes ventilation by indoor and outdoor pressure reduction direct effect, without additionaling power source, and on heat exchange structure, arranges newThe air inlet of fresh cold air and gas outlet, wherein air inlet connecting pipe is received outdoor. When fresh cold air enters after heat exchanger,The fume afterheat that lampblack absorber is discharged will heat it. Fresh cold air raises through temperature after heating, can effectively alleviate confessionThe fresh cold air load of heating equipment, enters indoor fresh cold air by pressure inside and outside balance cylinder, under solution from heat pipe simultaneouslyWater channel returns taste problem and promotes the task performance of cigarette machine.
3. the present invention is all coated with the nano silicon coating material opposite heat tube table that is brushed with high temperature resistance, excellent adsorption on every heat pipeFace carries out modification, makes the contact angle of itself and oil droplet become large, has the ability of super oleophobic, and the pollution of oil smoke opposite heat tube has reduced60-70％。
Simple in structure, with low cost, convenient and practical, the flexible operation of the present invention, be convenient to manufacture.
Brief description of the drawings
Fig. 1 is the front view of the specific embodiment of the invention one; Fig. 2 is the cutaway view of Fig. 1 at A-A place; Fig. 3 is thisThe front view of bright detailed description of the invention five; Fig. 4 is the cutaway view of Fig. 3 at A-A place; Fig. 5 is the specific embodiment of the inventionNine front view; Fig. 6 is the cutaway view of Fig. 5 at B-B place; Fig. 7 is the cutaway view of Fig. 6 at A-A place.
Detailed description of the invention
Detailed description of the invention one: in conjunction with Fig. 1-Fig. 2, present embodiment is described, a kind of exhaust ventilation heat exchange joint of present embodimentCan comprise housing 1 and non-return valve 2 by lampblack absorber, described housing 1 is rectangular case, and described lampblack absorber also comprises cover plate 9, orifice plate3, many heat pipes 4 and multiple fin 5, the upper end of housing 1 is respectively equipped with valve port 6 and air inlet 7, the fixing peace of non-return valve 2Be contained on valve port 6, the side wall upper part of housing 1 is provided with maintenance window 8, and cover plate 9 detachable covers are contained on maintenance window 8,The bottom of cover plate 9 is provided with venthole 13, and orifice plate 3 is vertically arranged in the inner chamber of housing 1, by the inner chamber of housing 1 by the right side extremelyPart on the left side and be slit into air side 10 and fume side 11, many heat pipes 4 can plug and be horizontally set on orifice plate 3 in the mode of rectangular arrayUpper, every heat pipe 4 equal intervals near air side 10 are set with multiple fins 5.
Multiple fins 5 of present embodiment are in air side, can efficient hardening heat transfer effects, since air cleaner, finSpacing is generally got 2-5mm, is highly 0.5-1 times of heat pipe light pipe caliber; Plain end, in fume side, is convenient to clear up greasy dirt,Ensure heat transfer effect.
The little 5-10cm of length of the Length Ratio lampblack absorber housing 1 of the heat pipe 4 of present embodiment, air side 10 and fume side 11The desirable 1.0-1.2 of Length Ratio, the light pipe diameter of heat pipe 4 is 10-20mm.
On the orifice plate 3 of present embodiment arrangement mode be in-line arrangement to reduce resistance, be to ensure heat transfer effect and compact structure,Heat pipe is 6-9 root in the quantity of laterally arranging, and is 6-9 in the short transverse quantity of arranging. The tube pitch of arranging is got doubly heat of 2-3The diameter of pipe light pipe section.
The maintenance window 8 length and width choosing values of present embodiment should enough be taken out whole heat pipes. Heat pipe is fixed by the orifice plate on casing.
The oleophobic coating of present embodiment should evenly be applied in fume side light pipe part, and thickness is 10-20 μ m.
The orifice plate 3 of present embodiment vertically arranges, by exhaust gases passes and fresh air passage from left and right in the middle of lampblack absorber bellows everyFrom, the side in air side air channel arranges repair and maintenance window, outer overlay 9. Open cover plate 9, can be by heat pipe 4 from orifice plate 3Insert or extract exhaust gases passes, carrying out regular maintenance and cleaning. Flue gas enters heat pipe from housing 1 lower end, after heat exchange from topNon-return valve 2 is discharged; Fresh air enters from air inlet 7, and discharge in the aperture 13 that folding turn 90 degrees from cover plate 9, completes and changeGas. 7
While the present invention is directed to use in winter lampblack absorber, Indoor Thermal air is taken away in smoke evacuation, and negative pressure sucks the energy that outdoor cold air causesAmount loss and fuel gas calorie loss, the fresh cold air of utilizing smoke discharging residual heat heating negative pressure to introduce, thus realize negative pressure simultaneouslyVentilation and heat exchange are energy-conservation. Secondly the anti-taste of sewer, window that the negative pressure having formed when, this invention has solved the work of cigarette machine causesBad seals, degradation problem under cigarette machine smoke discharging effect; This invention also can be played and be stablized heat exchange and promotion by heat exchange surface coatingThe effect that oil smoke separates.
Detailed description of the invention two: in conjunction with Fig. 1-Fig. 2, present embodiment is described, between the two adjacent fins 5 of present embodimentDistance be 2-5mm, the height of each fin 15 is the diameter of 0.5-1 heat pipe 4 doubly. So arrange, be convenient to cleaning oilDirt, ensures heat transfer effect. Other composition and annexation are identical with detailed description of the invention one.
Detailed description of the invention three: in conjunction with Fig. 1-Fig. 2, present embodiment is described, present embodiment be positioned at fume side 11 placesOn every heat pipe 4, be all coated with and be brushed with nano silicon coating 12. So arrange, ensure oleophobic effects. Other composition and connectionRelation is identical with detailed description of the invention one or two.
The layoutprocedure of the nanometer titanium dioxide silicon coating of present embodiment: first prepare nano silicon with sol-gal process,And mix with it with alcohol, the effect of alcohol is to spray as carrier. Then base material is carried out to degreasing, washing, and dryDry, and then effects on surface carries out application coating, finally toasts (100-200 DEG C, 10-20min). Coating now like thisPossesses fuel shedding quality.
Detailed description of the invention four: in conjunction with Fig. 1-Fig. 2, present embodiment is described, the nanometer titanium dioxide silicon coating 12 of present embodimentThickness be 10-20 μ m. Oleophobic effects the best is so set. Other composition and annexation and detailed description of the invention one orThree is identical.
Detailed description of the invention five: in conjunction with Fig. 3-Fig. 4, present embodiment is described, present embodiment comprise housing 1 and non-return valve2, described housing 1 is the housing with outer projection, and described lampblack absorber also comprises cover plate 9, orifice plate 3, many heat pipe 4 andMultiple fins 5, the upper end of housing 1 is respectively equipped with valve port 6 and air inlet 7, and the housing 1 under air inlet 7 is provided with outPore 13, non-return valve 2 is fixedly mounted on valve port 6, and the side wall upper part of housing 1 is provided with maintenance window 8, and cover plate 9 is removableUnload and mount cover on maintenance window 8, orifice plate 3 is vertically arranged in the inner chamber of housing 1, and the inner chamber of housing 1 is divided from left to rightBe slit into air side 10 and fume side 11, many heat pipes 4 can plug and be horizontally set on orifice plate 3 in the mode of rectangular array,Every heat pipe 4 equal intervals near air side 10 are set with multiple fins 5.
The difference of present embodiment and detailed description of the invention one is: present embodiment is lengthened to the plain end of heat pipe and cigarette machine widthDegree is (being less than cigarette machine width degree 2-5cm) quite, and smoke inlet and outlet are staggered, thereby to increase flue gas flow enhanced heat exchange.Air side lower end is changed in air gas outlet on maintenance window cover plate. Heat pipe flue gas end and air end Length Ratio are got 1-2, finEnd fin pitch 2-5mm, is highly 0.5-1 times of light pipe caliber, and heat pipe caliber is 10-20mm, and heat pipe is arranged on orifice plate 3For in-line arrangement is to reduce resistance, for ensureing heat transfer effect and compact structure, heat pipe is 6-9 in the quantity of laterally arranging,The short transverse quantity of arranging is 6-9.
The tube pitch of arranging is got 2-3 times of light pipe caliber.
Maintenance window length and width choosing value should enough be taken out whole heat pipes.
Heat pipe is fixed by the orifice plate on casing.
Oleophobic coating should evenly be applied in fume side light pipe part, and thickness is 10-20 μ m. Now, heat exchanger fresh air is logicalRoad is contained in lampblack absorber left side (or right side), and orifice plate 3 is arranged itself and exhaust gases passes left and right are isolated perpendicular to paper, opens left sideCover plate 9 on fresh air passage limit, can insert or extract exhaust gases passes from orifice plate 3 by heat pipe 4. Flue gas enters from bellowsEnter heat exchanger, after heat exchange, discharge from non-return valve 2; Fresh air can enter from 13 or 7, after heat exchange, discharges from 7 or 13.
Detailed description of the invention six: in conjunction with Fig. 3-Fig. 4, present embodiment is described, between the two adjacent fins 5 of present embodimentDistance be 2-5mm, the height of each fin 15 is the diameter of 0.5-1 heat pipe 4 doubly. So arrange, be convenient to cleaning oilDirt, ensures heat transfer effect. Other composition and annexation are identical with detailed description of the invention five.
Detailed description of the invention seven: in conjunction with Fig. 3-Fig. 4, present embodiment is described, present embodiment be positioned at fume side 11 placesOn every heat pipe 4, be all coated with and be brushed with nano silicon coating 12. So arrange, ensure oleophobic effects. Other composition and connectionRelation is identical with detailed description of the invention six.
Detailed description of the invention eight: in conjunction with Fig. 3-Fig. 4, present embodiment is described, the nanometer titanium dioxide silicon coating 12 of present embodimentThickness be 10-20 μ m. Oleophobic effects the best is so set. Other composition and annexation and detailed description of the invention seven phasesWith.
Detailed description of the invention nine: in conjunction with Fig. 5-Fig. 7, present embodiment is described, it of present embodiment comprises housing 1 and checkValve 2, described housing 1 is rectangular case, described lampblack absorber also comprises cover plate 9, orifice plate 3, many heat pipes 4 and multiple fin5, the upper end of housing 1 is respectively equipped with valve port 6, and the both sides of housing 1 are provided with gas outlet 13 and air inlet 7, and non-return valve 2 is fixingBe arranged on valve port 6, the side wall upper part of housing 1 is provided with maintenance window 8, and cover plate 9 detachable covers are contained on maintenance window 8,Orifice plate 3 is horizontally set in the inner chamber of housing 1, and the inner chamber of housing 1 is divided into air side 10 and fume side 11, manyHeat pipe 4 can plug and vertically be arranged on orifice plate 3 in the mode of rectangular array, first-class of the heat pipe 4 of every close air side 10Apart from being set with multiple fins 5.
Present embodiment with the difference of detailed description of the invention one is: present embodiment by heat pipe from parallel lampblack absorber length direction clothPut and change vertical length direction layout into, maintenance window moves to lampblack absorber front, and air duct is by longitudinally changing into laterally, like thisCan make air inlet resistance reduce, smoke inlet and outlet are staggered, thereby to increase flue gas flow enhanced heat exchange. Heat pipeFlue gas end and air end Length Ratio get 1, and fin end fin pitch 2-5mm, is highly 0.5-1 times of light pipe caliber, heat pipe caliberFor 10-20mm, heat pipe is arranged as in-line arrangement is to reduce resistance on orifice plate 3, for ensureing heat transfer effect and compact structure, heatPipe is 8-12 in the quantity of laterally arranging, and is 6-10 in the short transverse quantity of arranging. The tube pitch of arranging is got 2-3 doublyLight pipe caliber. Maintenance window length and width choosing value is enough taken out whole heat pipes. Heat pipe is fixed by the orifice plate on casing. Oleophobic coatingShould evenly be applied in fume side light pipe part, thickness is 10-20 μ m. Orifice plate 3 is isolated before and after being parallel to exhaust gases passes, opensThe cover plate 9 in lampblack absorber front, can insert or extract exhaust gases passes from orifice plate 3 by heat pipe 4. Flue gas enters heat pipe, after heat exchangeDischarge from non-return valve 2; Fresh air enters from air inlet 7, after heat exchange, discharges from gas outlet 13.
Detailed description of the invention ten: in conjunction with Fig. 5-Fig. 7, present embodiment is described, present embodiment be positioned at fume side 11 placesOn every heat pipe 4, be all coated with and be brushed with nano silicon coating 12. So arrange, ensure oleophobic effects. Other composition and connectionRelation is identical with detailed description of the invention nine.
Operation principle of the present invention is:
Fresh air, by indoor and outdoor differential pressure action, enters from air inlet 7, discharges from gas outlet 13, completes ventilation. Due to newlyThe temperature difference of fresh air and flue gas, fume afterheat will be acted on fresh air will be heated by heat pipe 4. Simultaneously due to nanometer twoThe oleophobic effect of silica 12, can suppress the adhesion of oil smoke at heat pipe, reduces the pollution of opposite heat tube.
Although the present invention discloses as above with preferred embodiment, however not of the present invention in order to limit, those skilled in the artCan also in spirit of the present invention, do other and change, and be applied in the NM field of the present invention, certainly, these foundationsThe variation that spirit of the present invention is done all should be included in the present invention's scope required for protection.
Claims (7)
1. the energy-conservation lampblack absorber of exhaust ventilation heat exchange, it comprises housing (1) and non-return valve (2), described housing (1) isRectangular case, is characterized in that: described lampblack absorber also comprises cover plate (9), orifice plate (3), many heat pipes (4) and multipleFin (5), the upper end of housing (1) is respectively equipped with valve port (6) and air inlet (7), and non-return valve (2) is fixedly mounted onValve port (6) is upper, and the side wall upper part of housing (1) is provided with maintenance window (8), and cover plate (9) detachable cover is contained in maintenance window(8) upper, the bottom of cover plate (9) is provided with venthole (13), and orifice plate (3) is vertically arranged in the inner chamber of housing (1),The inner chamber of housing (1) is divided into air side (10) and fume side (11) from right to left, and many heat pipes (4) are with rectangle battle arrayThe mode of row can plug and be horizontally set on orifice plate (3) above, every heat pipe (4) the equal intervals cover near air side (10)Multiple fins (5) are housed, are positioned on the every heat pipe (4) that fume side (11) locates and are all coated with and are brushed with nano silicon coating (12).
2. the energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange according to claim 1, is characterized in that: two adjacent fins (5)Between distance be 2-5mm, the height of each fin (15) is the diameter of 0.5-1 heat pipe (4) doubly.
3. according to the energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange described in claim 1 or 2, it is characterized in that: described nanometer twoThe thickness of silica coating (12) is 10-20 μ m.
4. the energy-conservation lampblack absorber of exhaust ventilation heat exchange, it comprises housing (1) and non-return valve (2), described housing (1) isWith the housing of outer projection, it is characterized in that: described lampblack absorber also comprises cover plate (9), orifice plate (3), many heat pipes(4) and multiple fin (5), the upper end of housing (1) is respectively equipped with valve port (6) and air inlet (7), air inlet (7)Under housing (1) be provided with venthole (13), it is upper that non-return valve (2) is fixedly mounted on valve port (6), housing (1)Side wall upper part be provided with maintenance window (8), it is upper that cover plate (9) detachable cover is contained in maintenance window (8), orifice plate (3) is verticalBe arranged in the inner chamber of housing (1), the inner chamber of housing (1) be divided into air side (10) and fume side (11) from left to right,Many heat pipes (4) can plug and be horizontally set on orifice plate (3) above in the mode of rectangular array, and every near air side (10)Heat pipe (4) equal intervals be set with multiple fins (5), be positioned on the every heat pipe (4) that fume side (11) locates and be all coated withBe brushed with nanometer titanium dioxide silicon coating (12).
5. the energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange according to claim 4, is characterized in that: two adjacent fins (5)Between distance be 2-5mm, the height of each fin (15) is the diameter of 0.5-1 heat pipe (4) doubly.
6. the energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange according to claim 5, is characterized in that: described nanometer titanium dioxideThe thickness of silicon coating (12) is 10-20 μ m.
7. the energy-conservation lampblack absorber of exhaust ventilation heat exchange, it comprises housing (1) and non-return valve (2), described housing (1) isRectangular case, is characterized in that: described lampblack absorber also comprises cover plate (9), orifice plate (3), many heat pipes (4) and multipleFin (5), the upper end of housing (1) is respectively equipped with valve port (6), and the both sides of housing (1) are provided with gas outlet (13) and enterGas port (7), it is upper that non-return valve (2) is fixedly mounted on valve port (6), and the side wall upper part of housing (1) is provided with maintenance window (8),It is upper that cover plate (9) detachable cover is contained in maintenance window (8), and orifice plate (3) is horizontally set in the inner chamber of housing (1), willThe inner chamber of housing (1) is divided into air side (10) and fume side (11), and many heat pipes (4) can in the mode of rectangular arrayIt is upper that plug is vertically arranged on orifice plate (3), and every heat pipe (4) equal intervals near air side (10) is set with multiple wingsSheet (5), is positioned on the every heat pipe (4) that fume side (11) locates and is all coated with and is brushed with nano silicon coating (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410228105.2A CN103968438B (en) | 2014-05-27 | 2014-05-27 | The energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410228105.2A CN103968438B (en) | 2014-05-27 | 2014-05-27 | The energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange |
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| CN103968438A CN103968438A (en) | 2014-08-06 |
| CN103968438B true CN103968438B (en) | 2016-05-11 |
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| CN201410228105.2A Expired - Fee Related CN103968438B (en) | 2014-05-27 | 2014-05-27 | The energy-conservation lampblack absorber of a kind of exhaust ventilation heat exchange |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104957963B (en) * | 2015-06-10 | 2017-04-19 | 哈尔滨工业大学 | Aerospace specific food cooking and kitchen smoke purifying system |
| CN104930565B (en) * | 2015-07-02 | 2017-02-22 | 青岛科瑞新型环保材料集团有限公司 | Kitchen waste heat comprehensive utilization system |
| CN105042657B (en) * | 2015-07-02 | 2017-01-25 | 青岛科瑞新型环保材料集团有限公司 | Range hood waste heat utilization system |
| CN108758754A (en) * | 2018-08-28 | 2018-11-06 | 杭州老板电器股份有限公司 | Oil-filtering apparatus, manufacturing method and kitchen ventilator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529105Y (en) * | 2001-07-19 | 2003-01-01 | 廖重文 | Powderless automatic kitchen ventilator |
| CN2828608Y (en) * | 2005-08-06 | 2006-10-18 | 麦广海 | Kitchen ventilator |
| CN101368744A (en) * | 2007-08-17 | 2009-02-18 | 朱友良 | Heat pipe oil smoke gas-gas purifier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107594U (en) * | 1991-05-20 | 1992-06-17 | 大连港务局 | No-power smog exhausting device |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529105Y (en) * | 2001-07-19 | 2003-01-01 | 廖重文 | Powderless automatic kitchen ventilator |
| CN2828608Y (en) * | 2005-08-06 | 2006-10-18 | 麦广海 | Kitchen ventilator |
| CN101368744A (en) * | 2007-08-17 | 2009-02-18 | 朱友良 | Heat pipe oil smoke gas-gas purifier |
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Granted publication date: 20160511 Termination date: 20170527 |