CN104196738A - Purification environmentally-friendly oil and smoke discharging draught fan - Google Patents
Purification environmentally-friendly oil and smoke discharging draught fan Download PDFInfo
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- CN104196738A CN104196738A CN201410362652.XA CN201410362652A CN104196738A CN 104196738 A CN104196738 A CN 104196738A CN 201410362652 A CN201410362652 A CN 201410362652A CN 104196738 A CN104196738 A CN 104196738A
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- beam hanger
- main shaft
- centrifugal separator
- purification
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Abstract
The invention discloses a purification environmentally-friendly oil and smoke discharging draught fan. The purification environmentally-friendly oil and smoke discharging draught fan comprises a base, an outer shell, a main shaft, a centrifugal separator, a wind wheel and a driving mechanism. The centrifugal separator comprises a fixed plate and an outer frame, wherein the peripheral side face of the fixed plate radiates and extends outwards to form a plurality of beam hangers which at least include the beam hangers on the outer layer and the beam hangers on the inner layer. The beam hangers on the two layers are arranged in the axial direction. Each beam hanger on the outer layer and the corresponding beam hanger on the inner layer are arranged in a staggered mode. The main shaft is driven by the driving mechanism to rotate so that the centrifugal separator and the wind wheel can synchronously rotate along with the main shaft. When oil-smoke gas flow passes through the centrifugal separator, due to the fact that centrifugal force is larger than centripetal force, greasy dirt is thrown onto all the beam hangers through matching with the action of the gravity; the greasy dirt flows into an oil collector along the beam hangers in the high-speed running process of the centrifugal separator, and therefore the aim of conducting efficient purification on oil and smoke is achieved; the concentration of discharged oil and smoke is lower than 2 mg/m<3> after purification, the purifying rate is 99.99%, and the environmental protection standard is completely met.
Description
Technical field
The present invention relates to ventilation equipment art, refer in particular to a kind of purification environmental-protection type cooking-fume discharging blower fan.
Background technique
Kitchen ventilator is a kind of kitchen appliance that purifies kitchen environment.It is arranged on kitchen range top, the harmful oil smoke producing can be taken away rapidly in the refuse of cooking stove burning and cooking process, outside discharge chamber, reduces and pollutes, and purifies air, and has gas defence, explosion-proof safety guarantee effect.Kitchen ventilator has become the requisite kitchen fitting such as Modern hotels, hotel, dining room.
But, kitchen ventilator does not have the function of purifying oil fume at present, it is only to rely on driven by motor wheel rotation and oil smoke is directly inner from kitchen take out toward the external world, so mode, although it can be extracted the oil smoke of inside, kitchen out, has purified kitchen environment, but, not through oil smoke purification discharge extraneous can be directly environment to external world, do not meet the environmental protection theory of current promotion.In addition, current fume exhauster fan delivery is little, blast is low, and has caused the problem that smoke exhaust efficiency is low.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its main purpose is to provide a kind of purification environmental-protection type cooking-fume discharging blower fan, and it can purify and have the advantages that air quantity is large, blast is high, discharge efficiency is high oil smoke.
For achieving the above object, the present invention adopts following technological scheme:
A kind of purification environmental-protection type cooking-fume discharging blower fan, includes base, shell, main shaft, centrifugal separator, wind wheel and driving mechanism;
This shell is arranged on base, in this shell, there is the first cavity, passage, the second cavity, intake grill and exhaust port, the inside of this first cavity is provided with oil trap, this first cavity, passage, the second cavity coaxially arrange, this intake grill is communicated with one end of the first cavity, the other end of the first cavity is by channel connection the second cavity, and the radial width of this passage is reduced to the second cavity gradually by the first cavity, and this relief opening is communicated with the second cavity;
This main shaft is arranged on shell and through the first cavity, passage and the second cavity rotationally;
This centrifugal separator and wind wheel are all fixedly arranged on main shaft and rotate with spindle synchronous, this centrifugal separator be arranged in the first cavity and be positioned at oil trap directly over, centrifugal separator includes fixed tray and housing, this fixed tray is fixed on main shaft, this housing is positioned at the periphery of fixed tray, the circumferential lateral surface of this fixed tray is extended multiple beam hangers to external radiation, the outer end of each beam hanger is all fixedly connected with housing, multiple beam hangers have at least formed outer beam hanger and internal layer beam hanger, two-layer beam hanger axial arranging, outer each beam hanger of beam hanger and each beam hanger of internal layer beam hanger misplace each other, the air intake side of this wind wheel is just to passage, and the air-out side of wind wheel is just to exhaust port,
This driving mechanism is arranged on base and drives main shaft to rotate.
As a kind of preferred version, described fixed tray is steel material, and on this fixed tray, produced by insert molding has inside casing, and this inside casing is metallic material, and each beam hanger is all fixedly connected with inside casing, and each beam hanger is steel wire, and this housing is metallic material.
As a kind of preferred version, the circumferential lateral surface of described fixed tray is extended and is had multiple struts to external radiation, and the outer end of each strut is all fixedly connected with housing, and the plurality of strut is between outer beam hanger and internal layer beam hanger.
As a kind of preferred version, described strut is metal screw.
As a kind of preferred version, described shell includes main body and backup plate, aforementioned the first cavity, passage, the second cavity, intake grill and exhaust port are all arranged in main body, in this main body, be provided with the mount inlet of putting into the second cavity for wind wheel, this backup plate is dismountable to be installed in main body and to cover mount inlet, on this backup plate, be welded with bearing, this bearing is removably installed on base.
As a kind of preferred version, on described bearing, bearing support is installed, this bearing support is oil bath type bearing support, this main shaft connects with bearing support through backup plate.
As a kind of preferred version, described wind wheel includes substrate and retaining ring, this substrate is fixed on main shaft, on the surface of substrate, be provided with multi-disc arc shaped blade, this retaining ring is positioned at the outside of multi-disc arc shaped blade, and every arc shaped blade is all welded and fixed with retaining ring, and this retaining ring is the delivery outlet to passage just.
As a kind of preferred version, between described substrate and retaining ring, be connected with reinforcing bar, and the middle inside of each arc shaped blade is all welded on a stiffening ring.
As a kind of preferred version, described driving mechanism includes motor, driving wheel, follower and belt, and this motor is fixed on base, and this driving wheel is installed on the output shaft of motor, and this follower is installed on main shaft, and this belt connects driving wheel and follower.
As a kind of preferred version, described driving wheel, follower and belt are covered with safety cover.
The present invention compared with prior art has obvious advantage and beneficial effect, particularly, and as shown from the above technical solution:
One, by driving main shaft to rotate by driving mechanism, centrifugal separator and wind wheel are rotated with spindle synchronous, oil smoke air-flow is when through centrifugal separator, utilize centrifugal force to be greater than centripetal force, and be engaged under the effect of gravity, greasy dirt is thrown on each beam hanger, and in the process running up at centrifugal separator, greasy dirt flows in oil trap along entering from beam hanger, to reach the object of oil smoke being carried out to high-efficient purification, cooking-fume discharging concentration after centrifugal separator purifies is lower than 2mg/m3, purification ratio is 99.99%, reach environmental protection standard completely, not environment to external world.
Two, by by substrate, retaining ring, arc shaped blade, reinforcing bar and stiffening ring have formed two intercept form arc wind wheels, make this product air quantity large, blast is high, air quantity is 23546m3/h, blast is 1100Pa, 2～3 times of traditional kitchen ventilator are exceeded, thereby greatly promote the smoke exhaust efficiency of this product, because oil smoke is thrown away by blade after centrifugal separator purifies again, oil smoke cannot contact with blade, exempt to clean, never stop up, working life can be for 15 years, this product is applicable to food and drink, the fume purifying in kitchen, hotel and discharge, too high mainly for floor, long and the public cigarette well of pipeline and specialized designs, solve at one stroke food and drink, the purifying oil fume in kitchen, hotel discharges difficult problem, since throwing in test marketing, obtain the consistent favorable comment of numerous old and new customers, also won the rosy prospect of developing target market.
Three, by adopting oil bath type bearing support, so that bearing and oil smoke are separated, be never stained with oil smoke, and compact structure, long service life, can reach 15 years.
For more clearly setting forth structure characteristic of the present invention and effect, below in conjunction with accompanying drawing and specific embodiment, the present invention is described in detail.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the present invention's preferred embodiment;
Fig. 2 is the stereogram of another angle of preferred embodiment of the present invention;
Fig. 3 is the plan view of centrifugal separator in the present invention's preferred embodiment;
Fig. 4 is the stereogram of arc wind wheel in the present invention's preferred embodiment;
Fig. 5 is the partial section of the present invention's preferred embodiment.
Accompanying drawing identifier declaration:
10, base 20, shell
21, main body 22, backup plate
23, bearing 201, the first cavity
202, passage 203, the second cavity
204, intake grill 205, exhaust port
206, oil trap 207, mount inlet
208, oil exit pipe 209, draining valve
30, main shaft 40, centrifugal separator
41, fixed tray 42, housing
43, beam hanger 44, inside casing
45, strut 50, wind wheel
51, substrate 52, retaining ring
53, arc shaped blade 54, reinforcing bar
55, stiffening ring 60, driving mechanism
61, motor 62, driving wheel
63, follower 64, belt
70, bearing support.
Embodiment
Please refer to shown in Fig. 1 to Fig. 5, the concrete structure that it has demonstrated the present invention's preferred embodiment, includes base 10, shell 20, main shaft 30, centrifugal separator 40, wind wheel 50 and driving mechanism 60.
Wherein, this base 10 is channel-section steel base.This shell 20 is arranged on base 10, in this shell 20, there is the first cavity 201, passage 202, the second cavity 203, intake grill 204 and exhaust port 205, the inside of this first cavity 201 is provided with oil trap 206, this oil trap 206 is connected with oil exit pipe 208, on this oil exit pipe 208, be provided with draining valve 209, this first cavity 201, passage 202, the second cavity 203 coaxially arranges, this intake grill 204 is communicated with one end of the first cavity 201, the other end of the first cavity 201 is communicated with the second cavity 203 by passage 202, the radial width of this passage 202 is reduced to the second cavity 203 gradually by the first cavity 201, this relief opening 205 is communicated with the second cavity 203.In the present embodiment, this shell 20 includes main body 21 and backup plate 22, aforementioned the first cavity 201, passage 202, the second cavity 203, intake grill 204 and exhaust port 205 are all arranged in main body 21, in this main body 21, be provided with the mount inlet 207 of putting into the second cavity 203 for wind wheel 50, this backup plate 22 is dismountable to be installed in main body 21 and to cover mount inlet 207, on this backup plate 22, be welded with bearing 23, this bearing 23 is removably installed on base 10.
This main shaft 30 is arranged on shell 20 and through the first cavity 201, passage 202 and the second cavity 203 rotationally, in the present embodiment, on aforementioned bearing 23, bearing support 70 is installed, this bearing support 70 is oil bath type bearing support, and this main shaft 30 connects with bearing support 70 through backup plate 22.
This centrifugal separator 40 and wind wheel 50 are all fixedly arranged on main shaft 30 and synchronously rotate with main shaft 30, this centrifugal separator 40 be arranged in the first cavity 201 and be positioned at oil trap 206 directly over, particularly, this centrifugal separator 40 includes fixed tray 41 and housing 42, this fixed tray 41 is fixed on main shaft 30, this housing 42 is positioned at the periphery of fixed tray 41, the circumferential lateral surface of this fixed tray 41 is extended multiple beam hangers 43 to external radiation, the outer end of each beam hanger 43 is all fixedly connected with housing 42, multiple beam hangers 43 have at least formed outer beam hanger and internal layer beam hanger, two-layer beam hanger axial arranging, each beam hanger 43 and each beam hanger 43 of internal layer beam hanger of outer beam hanger misplace each other, and, in the present embodiment, this fixed tray 41 is steel material, on this fixed tray 41, produced by insert molding has inside casing 44, this inside casing 44 is metallic material, each beam hanger 43 is all fixedly connected with inside casing 44, each beam hanger 43 is steel wire, this housing 42 is metallic material, and, the circumferential lateral surface of this fixed tray 41 is extended and is had multiple struts 45 to external radiation, the outer end of each strut 45 is all fixedly connected with housing 42, the plurality of strut 45 is between outer beam hanger and internal layer beam hanger, this strut 45 is equally distributed three in the present embodiment, this strut 45 is metal screw, utilize strut 45 can make fixed tray 41 more firm with being connected of housing 42.
The air intake side of this wind wheel 50 is just to passage 202, the air-out side of wind wheel 50 is just to exhaust port 205, particularly, this wind wheel 50 is two intercept form arc wind wheels, it includes substrate 51 and retaining ring 52, this substrate 51 is fixed on main shaft 30, on the surface of substrate 51, be provided with multi-disc arc shaped blade 53, this retaining ring 52 is positioned at the outside of multi-disc arc shaped blade 53, and every arc shaped blade 53 is all welded and fixed with retaining ring 52, the just delivery outlet to passage 202 of this retaining ring 52, and, between this substrate 51 and retaining ring 52, be connected with reinforcing bar 54, and the middle inside of each arc shaped blade 53 is all welded on a stiffening ring 55.
This driving mechanism 60 is arranged on base 10 and drives main shaft 30 to rotate; particularly; this driving mechanism 60 includes motor 61, driving wheel 62, follower 63 and belt 64; this motor 61 is fixed on base 10, and this driving wheel 62 is installed on the output shaft of motor 61, and this second belt 63 is taken turns and is installed on main shaft 30; this belt 64 connects driving wheel 62 and follower 63; in addition, this driving wheel 62, follower 63 and belt 64 are covered with safety cover (not shown), to play safety protection effect.
The working procedure that the present embodiment is described in detail in detail is as follows:
When work, motor 61 starts, by driving wheel 62, follower 63 and belt 64 coordinate drive main shaft 30 to rotate, this centrifugal separator 40 and wind wheel 50 synchronously rotate with main shaft 30, this wind wheel 50 rotates and makes oil smoke form directed oil smoke air-flow, first oil smoke air-flow carries out the first cavity 201 from intake grill 204, oil smoke air-flow is when through centrifugal separator 40, utilize centrifugal force to be greater than centripetal force, and be engaged under the effect of gravity, greasy dirt is thrown on each beam hanger 43, and in the process running up at centrifugal separator 40, greasy dirt flows in oil trap 206 along entering from beam hanger 43, then, greasy dirt is discharged through the oil exit pipe 208 on oil trap 206, oil smoke is after centrifugal separator 40 purifies, by wind wheel 50, the oil smoke after purifying is discharged outside exhaust port 205, thereby reach the effect of purification environmental-protection, cooking-fume discharging concentration after centrifugal separator 40 is lower than 2mg/m3, reach environmental protection standard completely.
Design focal point of the present invention is: first, by driving main shaft to rotate by driving mechanism, centrifugal separator and wind wheel are rotated with spindle synchronous, oil smoke air-flow is when through centrifugal separator, utilize centrifugal force to be greater than centripetal force, and be engaged under the effect of gravity, greasy dirt is thrown on each beam hanger, and in the process running up at centrifugal separator, greasy dirt flows in oil trap along entering from beam hanger, to reach the object of oil smoke being carried out to high-efficient purification, cooking-fume discharging concentration after centrifugal separator purifies is lower than 2mg/m3, purification ratio is 99.99%, reach environmental protection standard completely, not environment to external world.Secondly, by by substrate, retaining ring, arc shaped blade, reinforcing bar and stiffening ring have formed two intercept form arc wind wheels, make this product air quantity large, blast is high, air quantity is 23546m3/h, blast is 1100Pa, 2～3 times of traditional kitchen ventilator are exceeded, thereby greatly promote the smoke exhaust efficiency of this product, because oil smoke is thrown away by blade after centrifugal separator purifies again, oil smoke cannot contact with blade, exempt to clean, never stop up, working life can be for 15 years, this product is applicable to food and drink, the fume purifying in kitchen, hotel and discharge, too high mainly for floor, long and the public cigarette well of pipeline and specialized designs, solve at one stroke food and drink, the purifying oil fume in kitchen, hotel discharges difficult problem, since throwing in test marketing, obtain the consistent favorable comment of numerous old and new customers, also won the rosy prospect of developing target market.Moreover, by adopting oil bath type bearing support, so that bearing and oil smoke are separated, be never stained with oil smoke, and compact structure, long service life, can reach 15 years.
The above, it is only preferred embodiment of the present invention, not technical scope of the present invention is imposed any restrictions, therefore any trickle amendment, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a purification environmental-protection type cooking-fume discharging blower fan, is characterized in that: include base, shell, main shaft, centrifugal separator, wind wheel and driving mechanism;
This shell is arranged on base, in this shell, there is the first cavity, passage, the second cavity, intake grill and exhaust port, the inside of this first cavity is provided with oil trap, this first cavity, passage, the second cavity coaxially arrange, this intake grill is communicated with one end of the first cavity, the other end of the first cavity is by channel connection the second cavity, and the radial width of this passage is reduced to the second cavity gradually by the first cavity, and this relief opening is communicated with the second cavity;
This main shaft is arranged on shell and through the first cavity, passage and the second cavity rotationally;
This centrifugal separator and wind wheel are all fixedly arranged on main shaft and rotate with spindle synchronous, this centrifugal separator be arranged in the first cavity and be positioned at oil trap directly over, centrifugal separator includes fixed tray and housing, this fixed tray is fixed on main shaft, this housing is positioned at the periphery of fixed tray, the circumferential lateral surface of this fixed tray is extended multiple beam hangers to external radiation, the outer end of each beam hanger is all fixedly connected with housing, multiple beam hangers have at least formed outer beam hanger and internal layer beam hanger, two-layer beam hanger axial arranging, outer each beam hanger of beam hanger and each beam hanger of internal layer beam hanger misplace each other, the air intake side of this wind wheel is just to passage, and the air-out side of wind wheel is just to exhaust port,
This driving mechanism is arranged on base and drives main shaft to rotate.
2. purification environmental-protection type cooking-fume discharging blower fan according to claim 1, is characterized in that: described fixed tray is steel material, and on this fixed tray, produced by insert molding has inside casing, this inside casing is metallic material, each beam hanger is all fixedly connected with inside casing, and each beam hanger is steel wire, and this housing is metallic material.
3. purification environmental-protection type cooking-fume discharging blower fan according to claim 1 and 2, it is characterized in that: the circumferential lateral surface of described fixed tray is extended and had multiple struts to external radiation, the outer end of each strut is all fixedly connected with housing, and the plurality of strut is between outer beam hanger and internal layer beam hanger.
4. purification environmental-protection type cooking-fume discharging blower fan according to claim 3, is characterized in that: described strut is metal screw.
5. purification environmental-protection type cooking-fume discharging blower fan according to claim 1, it is characterized in that: described shell includes main body and backup plate, aforementioned the first cavity, passage, the second cavity, intake grill and exhaust port are all arranged in main body, in this main body, be provided with the mount inlet of putting into the second cavity for wind wheel, this backup plate is dismountable to be installed in main body and to cover mount inlet, on this backup plate, be welded with bearing, this bearing is removably installed on base.
6. purification environmental-protection type cooking-fume discharging blower fan according to claim 5, is characterized in that: on described bearing, bearing support is installed, this bearing support is oil bath type bearing support, and this main shaft connects with bearing support through backup plate.
7. purification environmental-protection type cooking-fume discharging blower fan according to claim 1, it is characterized in that: described wind wheel includes substrate and retaining ring, this substrate is fixed on main shaft, on the surface of substrate, be provided with multi-disc arc shaped blade, this retaining ring is positioned at the outside of multi-disc arc shaped blade, and every arc shaped blade is all welded and fixed with retaining ring, and this retaining ring is the delivery outlet to passage just.
8. purification environmental-protection type cooking-fume discharging blower fan according to claim 7, is characterized in that: between described substrate and retaining ring, be connected with reinforcing bar, and the middle inside of each arc shaped blade is all welded on a stiffening ring.
9. purification environmental-protection type cooking-fume discharging blower fan according to claim 1, it is characterized in that: described driving mechanism includes motor, driving wheel, follower and belt, this motor is fixed on base, this driving wheel is installed on the output shaft of motor, this follower is installed on main shaft, and this belt connects driving wheel and follower.
10. purification environmental-protection type cooking-fume discharging blower fan according to claim 9, is characterized in that: described driving wheel, follower and belt are covered with safety cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362652.XA CN104196738A (en) | 2014-07-28 | 2014-07-28 | Purification environmentally-friendly oil and smoke discharging draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410362652.XA CN104196738A (en) | 2014-07-28 | 2014-07-28 | Purification environmentally-friendly oil and smoke discharging draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104196738A true CN104196738A (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410362652.XA Pending CN104196738A (en) | 2014-07-28 | 2014-07-28 | Purification environmentally-friendly oil and smoke discharging draught fan |
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| Country | Link |
|---|---|
| CN (1) | CN104196738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676303A (en) * | 2017-09-11 | 2018-02-09 | 佛山市美家生活电器有限公司 | The spiral case blower fan of smoke exhaust ventilator |
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| US5537988A (en) * | 1995-08-21 | 1996-07-23 | Sung-Lin Huang | Grease guiding tray for a kitchen ventilator |
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| CN200951374Y (en) * | 2006-09-21 | 2007-09-26 | 武汉宏健不锈钢制品有限公司 | Composite type cooking fume remover |
| CN201730874U (en) * | 2010-01-13 | 2011-02-02 | 张生位 | Centrifugal fan with oil fume separating function |
| CN202182066U (en) * | 2011-08-09 | 2012-04-04 | 安徽安风风机有限公司 | Impeller of single plate blade centrifugal fan |
| CN202757172U (en) * | 2012-06-06 | 2013-02-27 | 东莞市麦凯通风设备有限公司 | Strong oil smoke exhauster fan of commercial kitchen |
| CN203131924U (en) * | 2013-03-19 | 2013-08-14 | 罗小灵 | Oil smoke separator |
| CN203478379U (en) * | 2013-07-15 | 2014-03-12 | 余永东 | Kitchen ventilator with lampblack separation function |
| CN203642280U (en) * | 2013-11-01 | 2014-06-11 | 罗兆波 | Range hood with oil-smoke separator |
| CN203978868U (en) * | 2014-07-28 | 2014-12-03 | 东莞市麦凯通风设备有限公司 | Purification environmental-protection type cooking-fume discharging blower fan |
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2014
- 2014-07-28 CN CN201410362652.XA patent/CN104196738A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133835A (en) * | 1983-01-14 | 1984-08-01 | Chung Tsung Cheng | Kitchen exhaust fans |
| US5537988A (en) * | 1995-08-21 | 1996-07-23 | Sung-Lin Huang | Grease guiding tray for a kitchen ventilator |
| CN2791519Y (en) * | 2005-04-08 | 2006-06-28 | 田一平 | Self-cleaning centrifugal domestic oil fume purifying machine |
| CN200951374Y (en) * | 2006-09-21 | 2007-09-26 | 武汉宏健不锈钢制品有限公司 | Composite type cooking fume remover |
| CN201730874U (en) * | 2010-01-13 | 2011-02-02 | 张生位 | Centrifugal fan with oil fume separating function |
| CN202182066U (en) * | 2011-08-09 | 2012-04-04 | 安徽安风风机有限公司 | Impeller of single plate blade centrifugal fan |
| CN202757172U (en) * | 2012-06-06 | 2013-02-27 | 东莞市麦凯通风设备有限公司 | Strong oil smoke exhauster fan of commercial kitchen |
| CN203131924U (en) * | 2013-03-19 | 2013-08-14 | 罗小灵 | Oil smoke separator |
| CN203478379U (en) * | 2013-07-15 | 2014-03-12 | 余永东 | Kitchen ventilator with lampblack separation function |
| CN203642280U (en) * | 2013-11-01 | 2014-06-11 | 罗兆波 | Range hood with oil-smoke separator |
| CN203978868U (en) * | 2014-07-28 | 2014-12-03 | 东莞市麦凯通风设备有限公司 | Purification environmental-protection type cooking-fume discharging blower fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676303A (en) * | 2017-09-11 | 2018-02-09 | 佛山市美家生活电器有限公司 | The spiral case blower fan of smoke exhaust ventilator |
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Application publication date: 20141210 |