CN1811279A - Hood ventilation apparatus - Google Patents

Hood ventilation apparatus Download PDF

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Publication number
CN1811279A
CN1811279A CNA2005101369211A CN200510136921A CN1811279A CN 1811279 A CN1811279 A CN 1811279A CN A2005101369211 A CNA2005101369211 A CN A2005101369211A CN 200510136921 A CN200510136921 A CN 200510136921A CN 1811279 A CN1811279 A CN 1811279A
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CN
China
Prior art keywords
wall jet
guiding piece
main body
gas
ventilation apparatus
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Granted
Application number
CNA2005101369211A
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Chinese (zh)
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CN100432545C (en
Inventor
白丞祚
孙尚范
金洞贤
李制俊
孙辉昌
宋圣培
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LG Electronics Inc
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LG Electronics Inc
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Publication of CN1811279A publication Critical patent/CN1811279A/en
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Publication of CN100432545C publication Critical patent/CN100432545C/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/04Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

The invention provides a bell-type smoke exhaust ventilator, which comprises a cover which is provided with a main body whose lower surface is provided with a suction pore for sucking in gas which contains cooking secondary product and which is mounted on the upper portion of a cooking resource and a discharge pipeline which is extended to the upper portion of the main body and discharges the gas which is sucked in, a first air blower which is mounted in the discharge pipeline and is used to produce suction for sucking gas in the cover, a wall surface jet flow guiding piece which is mounted in the periphery of the main body and is used to lead gas in the cover to flow along the surface of the wall surface jet flow guiding piece and a second air blower which is arranged in the main body and is used to provide gas for the wall surface jet flow guiding piece. The invention can effectively gather the polluted material which is discharged to the periphery surface of the cover, gathering efficiency can be improved even if utilizing a little amount of discharge gas, and the invention can improve cooking comfortable degree through preventing hot polluted material from diffusing to the facial portion of a user who is cooking.

Description

Hood ventilation apparatus
Technical field
The present invention relates to a kind of hood ventilation apparatus (hood ventilation apparatus), relate in particular to a kind of hood ventilation apparatus with wall jet (walljet) device, even be used for utilizing a spot of emission gases also can be effectively be discharged into cover peripheral surface contain the gas channeling cover collecting region of cooking byproduct.
Background technology
Usually, hood ventilation apparatus is installed in for example gas-cooker or electric micro-wave oven tops, culinary art source such as (as thermal source), so that the gas that contains pollutant that will produce when family kitchen or restaurant cooking food is discharged into the external world.
As shown in Figure 1, traditional hood ventilation apparatus comprises: cover 10, be installed on the supporter 15 that wall etc. for example is installed, and so that be positioned at top, culinary art source 40 (for example: gas-cooker or cooktop surface), and have constant interval with culinary art source 40; Oil filter 32 is installed in the air inlet 31 (it is facing to the upper surface in cooking source 40) that is formed at cover 10 inlet side, is used for filtering the oil particles that produces at gastronomical process and the particle of suspended state; Blasting unit 22 is installed in the top of cover 10, is used to produce inspiratory airflow; And discharge duct 21, be connected cover 10 top, be used for will be through the gas row of cover 10 to the outside.
Cover 10 comprises: top (canopy) shape gas collecting chamber 30 has big lower area and little upper area and its inner break-through, thereby gas can be collected in its inside; And Machinery Ministry 20, extend downwardly into the top of gas collecting chamber 30, and be communicated with gas collecting chamber 30, the blasting unit 22 that is communicated with discharge duct 21 is installed in Machinery Ministry 20.
The lower surface of gas collecting chamber 30 is formed with the air inlet 31 facing to the culinary art source, and the oil filter 32 that blocks whole air inlet 31 is installed.
Oil filter 32 has the structure that gas is passed through.Therefore, the gas that produces from the culinary art source as thermal source is drawn in the gas collecting chamber 30 of cover 10 via oil filter 32.Being contained in oil in the gas and the culinary art byproduct (by-product) that is in suspended state is filtered out by oil filter 32.
Blasting unit 22 comprises fan 23, and it is connected with motor shaft with the motor (not shown), thereby produces air-flow by the revolving force rotation of motor.Fan 23 adopts centrifugal fan.
Below, will the operation of this traditional hood ventilation apparatus be described.
At first, this hood ventilation apparatus is to use when using culinary art source 40 cooking foods.
When constituting the motor energising of blasting unit 22, motor operation.Therefore fan 23 has been produced air-flow by suction by the operation driven rotary of motor.
Simultaneously, when the gas of the culinary art byproduct that produces in containing the process of using 40 culinary arts of culinary art source flows owing to convection current makes progress, by the suction that fan 23 produces, contain the gas of cook byproduct and be drawn in the gas collecting chamber 30 via being installed in the oil filter 32 that covers 10 gas collecting chamber 30 lower surfaces.The gas that is drawn in the gas collecting chamber 30 is discharged into the external world by fan 23 and discharge duct 21.When gas process oil filter 32, the oil particles that produces in cooking process is filtered out by oil filter 32 with the particle that is in suspended state.
Yet, in above-mentioned traditional hood ventilation apparatus, as shown in Figure 2, when the gas that contains the culinary art byproduct that produces in cooking process flows owing to convection current makes progress, when being drawn into gas collector 30 inside of cover 10 then, gas is drawn onto in the suction zone of gas collector 30 lower surfaces that oil filter 32 is installed fully, be discharged into the external world by discharge duct 21 then, but, in the zone of departing from the suction zone that oil filter 32 is installed, the efficient that gas is drawn into gas collecting chamber 30 then significantly reduces.
Especially, when a little less than the suction of fan 23, this situation is more serious.Improve the gas collection efficiency even strengthen the suction of fan 23, for the gas that upwards flows to the zone of departing from the suction zone of oil filter 32, suction velocity also can reduce owing to the factor that stops of oil filter 32.As a result, gas spreads towards the user along the periphery of gas collecting chamber 30 lower surfaces of cover 10.
And, because the suction of fan 23 and square reduction inversely from the distance on the suction surface of covering 10 gas collecting chamber 30, even suck the surface so suction acts in a large number, if suction is surperficial excessive with thermal source (culinary art source) distance, then the gas of thermal source generation can not be collected effectively and cover inside.
Because it is indoor to contain the gas inflow of not collecting the culinary art byproduct in the cover, has polluted indoor gas.
As a result, the user does not feel quite oneself, and is difficult to the indoor environment that keeps comfortable.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of hood ventilation apparatus, even utilize a spot of emission gases, also can by will be discharged into the cover peripheral surface pollutant effectively the guide housing collecting zone improve collection efficiency and the culinary art comfort level.
In order to realize these and other advantage and according to purpose of the present invention, reach broadly described for example as this paper, provide a kind of hood ventilation apparatus to comprise: cover, comprise and be installed in culinary art source top and lower surface has the main body that is used to suck the suction inlet that contains the gas of cook byproduct, and the discharge duct that extends to the gas of main body top and discharging suction; First air blast is installed in the discharge duct, is used to produce suction with in the gas inhalation mask; The wall jet guiding piece is installed in the periphery of main body, and (the wall jet guiding piece) flows along its surface to be used to make gas in the cover; And second air blast, be located in the main body, be used for providing gas to the wall jet guiding piece.
By below in conjunction with the accompanying drawing detailed description of the present invention, will be clearer according to the aforesaid of hood ventilation apparatus of the present invention and other purpose, feature, scheme and advantage.
Description of drawings
This paper is included is used to a part that the accompanying drawing that further specifies of the present invention has been constituted this specification is provided, and describes embodiments of the invention with specification, explains principle of the present invention.
In the accompanying drawings:
Fig. 1 is the cutaway view of traditional hood ventilation apparatus;
Fig. 2 is the stereogram according to the hood ventilation apparatus of the first embodiment of the present invention;
Fig. 3 is the side sectional view of Fig. 2;
Fig. 4 is the enlarged drawing of the major part of Fig. 3;
Fig. 5 is the vertical view of Fig. 2;
Fig. 6 is the enlarged drawing of the major part of hood ventilation apparatus according to a second embodiment of the present invention;
Fig. 7 is the enlarged drawing of major part of the hood ventilation apparatus of a third embodiment in accordance with the invention;
Fig. 8 is the vertical view of the hood ventilation apparatus of a fourth embodiment in accordance with the invention;
Fig. 9, Figure 10 and Figure 11 are the longitudinal sectional views according to the example of the various remodeling of wall jet guiding piece of the present invention;
Figure 12 and Figure 13 are the photos that shows the air-flow visual testing result of hood ventilation apparatus of the present invention;
Figure 14 is the schematic diagram that shows according to the fluid stream of the CFD result of calculation under the running status of hood ventilation apparatus of the present invention;
Figure 15 is the enlarged drawing of the major part of Figure 14;
Figure 16 is the schematic diagram that shows according to the fluid stream of the CFD result of calculation under the running status of traditional hood ventilation apparatus;
Figure 17 is the enlarged drawing of the major part of Figure 16.
The specific embodiment
To describe the preferred embodiment according to hood ventilation apparatus of the present invention now in detail, their example shows by accompanying drawing.
Can have a plurality ofly according to the embodiment of hood ventilation apparatus of the present invention, below will explain preferred
Embodiment.
Below, will make an explanation to the present invention with reference to the accompanying drawings.
Fig. 2 to Fig. 5 illustrates the hood ventilation apparatus according to the first embodiment of the present invention.
With reference to these accompanying drawings, hood ventilation apparatus according to the first embodiment of the present invention comprises: cover 350, it comprises and for example is installed in cooktop surface or top, gas-cooker culinary art sources such as (with reference to figure 1) and bottom and has the main body 200 that can suck the suction inlet 230 that contains the gas of cook byproduct, and extends to main body top and discharge the discharge duct 300 of the gas that is sucked; First air blast 310 is installed in the discharge duct 300, is used to produce the suction with in the gas inhalation mask 350; And wall jet guiding piece 430, be installed in main body 200 outsides, be used to make the gas in the cover 350 to flow along the surface of wall jet guiding piece; And second air blast 500, be located in the main body 200, be used in wall jet guiding piece 430, providing gas.
Suction inlet 230 is provided with oil filter 250, is used for filtering the oil particles that cooking process produces and the particle of suspended state.
Wall jet guiding piece 430 can be installed in the whole exterior lateral area of main body 200.That is to say, can be installed in the front portion in the outside, two sidepiece and rear portion, perhaps be installed in anterior and two sidepieces, perhaps only be installed in the front portion.
To the structure of first embodiment shown in Figure 5, wall jet guiding piece 430 is installed in the front portion in main body 200 outsides at Fig. 2.
Below will be further explained in detail structure according to the hood ventilation apparatus of the first embodiment of the present invention.
One side of main body 200 is openings.One end of the overhead gage (casing) 210 of the main body 200 that can see by a side of opening is connected with gas guided plate 411.Wall jet guiding piece 430 is fixedly mounted between the end of the gas guided plate 411 of main body 200 and lower baffle plate 220, thereby forms wall jet passage 401 between the surface of gas guided plate 411 and wall jet guiding piece 430.Second air blast 500 on the overhead gage 210 of main body 200, is formed with through hole 211, so that can be drawn into gas the inside of main body 200 from the external world.At this, second air blast, the 500 preferred centrifugal fans that use.
For gas is passed through second air blast, 500 guide wall wall jet passages 401 through through hole 211, wall jet lead-frame 440 is installed in main body 200.Except a side of the opening of main body 200 that wall jet guiding piece 430 is installed, wall jet lead-frame 440 covers second air blast 500.A surface in wall jet lead-frame 440 is formed with the installing hole 442 that is used to install second air blast 500.The whole installation portion 460 that covers installing hole 442 and second air blast 500 is installed that is connected with on wall jet lead-frame 440.
On the other hand, first extension board 410 with length-specific is clipped between the end of overhead gage 210 of gas guided plate 411 and main body 200, and second extension board 420 is from the end extension of the lower baffle plate 220 of main body 200, thereby milder by the gas flow of second air blast 500 by 401 dischargings of wall jet passage, and fixed installation wall jet guiding piece 430 is more prone to.
For example, by considering the whole dimension of hood ventilation apparatus 350, design a end (this end is fixedly mounted on an end of the overhead gage 210 of main body 200) to the length L of the end of gas guided plate 411 from first extension board 410.Preferably, at present employed have this length L of standard-sized hood ventilation apparatus less than 70 millimeters.
In addition, first extension board 410 and gas guided plate 411 are shaped from overhead gage 210 whole extensions of main body 200, and second extension board 420 can be made into to be shaped from lower baffle plate 220 whole extensions of main body 200.
Wall jet guiding piece 430 is ring pipe or annular bar.Gas guided plate 411 forms along the surface of wall jet guiding piece 430 has constant curvature.At this, as shown in Figure 5, the ratio between the height h from the lower baffle plate 220 of main body 200 to the center of wall jet guiding piece 430 and the diameter D of wall jet guiding piece 430 is preferably 0 to 0.25.And, the gap d between the end of wall jet guiding piece 430 and gas guided plate 411, promptly the gap d of wall jet passage 401 can form best wall jet stream better by this gap between 1.5 millimeters to 4 millimeters.
In order to make gas not have shunting ground, flow to suction inlet 230 along wall jet guiding piece 430 smoothly by 401 dischargings of wall jet passage, perhaps in order to make shunting occur at least bottom near suction inlet 230 as far as possible, the wall jet that gives off by the wall jet passage must be between 30 ° and 60 ° at virtual vertical line 473 and the initial angle θ between the wall jet emission direction through the center of wall jet guiding piece 430 as baseline.The speed of wall jet preferably remains on the 3-5 meter per second.For this reason, importantly be bending curvature and the length of suitably adjusting gas guided plate 411 according to the design of the best.
On the other hand, in order to make in gas by wall jet passage 401 discharging flows into suction inlet 230 in the lower baffle plate 220 that is formed on main body 200 effectively along the surface of wall jet guiding piece 430, the part of preferred wall jet guiding piece 430 bottoms is projected into the lower baffle plate 220 that is lower than main body 200 downwards, and is installed on the peripheral surface of main body 200.
To explain hood ventilation apparatus according to another embodiment of the invention now.At this,,, will adopt identical Reference numeral for the identical part that shows among first embodiment so that more clearly describe the feature of an alternative embodiment of the invention with omitting structure and the explanation of first embodiment.
Fig. 6 illustrates the critical piece of hood ventilation apparatus according to a second embodiment of the present invention.Promptly, in hood ventilation apparatus according to a second embodiment of the present invention, as shown in Figure 6, through hole 462 is formed on the lower surface of installation portion 460 that inside is equipped with second air blast 500, is discharged into extraneous gas by first air blast 310 and partly is drawn in the through hole 462 by the suction of second air blast 500.
Fig. 7 illustrates the hood ventilation apparatus of a third embodiment in accordance with the invention.Promptly, be formed with constant gap b between one end of the lower baffle plate 220 of wall jet guiding piece 430 and main body 200, preferred and second extension board 420, thereby can correspondingly prevent because the shunting situation of the wall jet that boundary layer suction effect (boundary layer suction effect) causes by gap b.At this moment, shown in first embodiment, the through hole 211 that is drawn into the overhead gage 210 that the gas of first air blast 310 can be by being formed on main body 200 sucks, and, shown in second embodiment, can also suck by the through hole 462 that is formed on the installation portion 460.
On the other hand, Fig. 8 is the vertical view of the hood ventilation apparatus of a fourth embodiment in accordance with the invention.Here, wall jet guiding piece 430 constitutes front portion and two sidepieces of the periphery that is installed in main body 200.For example illuminating lamp such as Halogen lamp LED is installed in wall jet guiding piece 430.Simultaneously, wall jet guiding piece 430 is to be made by the material with transparent or semitransparent attribute of light-permeable, so that obtain good surface appearance when using illuminating lamp 450.
And, wall jet lead-frame 570 is installed in the main body 200, so that will go into three parts, that is, divide to go into anterior and two sidepieces from the air-flow branch of second air blast 500.As a result, can lead at an easy rate through the gas of second air blast 500 and be installed in the wall jet guiding piece 430 of anterior and two sidepieces.
Fig. 9 to Figure 11 illustrates the example according to the various remodeling of wall jet guiding piece of the present invention.
Fig. 9 is illustrated in the structure that crooked guide plate 412 is installed between wall jet guiding piece 430 and the gas guided plate 411.
It is not to form ring-type that Figure 10 illustrates wall jet guiding piece 430, but forms crooked tabular structure.The centering guide 413 that Figure 10 also illustrates curved shape is installed in crooked tabular wall jet guiding piece 431 and the structure between the gas guided plate 411.
It is not to form ring-type but form the similarly crooked tabular structure with Figure 10 that Figure 11 illustrates wall jet guiding piece 432, and the structure that vertical component 411a extends from gas guided plate 411 also is shown.Between gas guided plate 411 and wall jet guiding piece 432 centering guide 414 is installed, it comprises crooked inner surface 414a, have crooked top and the outer surface 414b of vertical bottom and the downside surface 414c of level.
Below will explain the operation with hood ventilation apparatus of this structure of the present invention.
40 suction that contain the first interior air blast 310 of the gas of the cook byproduct discharge duct 300 by being installed in hood ventilation apparatus that produce are via suction inlet 230, be discharged into the external world by discharge duct 300 from the culinary art source.Simultaneously, when wall jet (passing through wall jet passage 401 diffusion) by the operation of second air blast 500 because Coanda effect (coanda effect, the characteristic that fluid flows along the peripheral surface of solids) apace when flow in the surface of wall jet guiding piece 430,431 or 432, the artificially has formed negative pressuren zone on the periphery of wall jet guiding piece 430.At this moment, the more weak ambient gas of wall jet drive momentum flows in the negative pressure region.As a result, from thermal source 40 upwards the gas of diffusion, be not inhaled into suction inlet 230 but the gas of front side that is discharged into the hood ventilation apparatus of the position that the user cooks is drawn towards suction inlet 230.At this, when wall jet constantly loses its momentum and passes through the downside of wall jet guiding piece 430,431 or 432, produced shunting.Yet, if taking place, the zone of shunting closes on suction inlet 230, will be at the momentum that shunting rear surface jet takes place greater than the momentum of the air-flow of 40 diffusions from the culinary art source.And inspiratory flow (suction airstream) traction that produces in the periphery office by suction inlet 230 is from the air-flow in culinary art source 40.As a result, can be effectively with from culinary art source 40 be not inhaled into suction inlet 230 but the gas of diffusion sucks in the suction inlet 230.
Figure 12 to Figure 17 illustrates the comparative result according to the performance of hood ventilation apparatus of the present invention and traditional hood ventilation apparatus.
At first, Figure 12 is illustrated in the photo of air-flow visual testing (gas emissions: 300 cubic metres/hour) result when not producing the wall jet air-flow in the hood ventilation apparatus of the present invention, Figure 13 then is illustrated in according to the air-flow visual testing (gas emissions: 300 cubic metres/hour that produces the wall jet air-flow in the hood ventilation apparatus of the present invention, wall jet speed: 4 meter per seconds, path clearance d:3.0 millimeter) result's photo.
In addition, Figure 14 and Figure 15 illustrate according to the calculating of the Fluid Mechanics Computation CFD of hood ventilation apparatus of the present invention (gas emissions: 300 cubic metres/hour, wall jet speed: 4 meter per seconds, path clearance d:2.5 millimeter) result, and Figure 16 and Figure 17 illustrate the CFD calculating (gas emissions: 300 cubic metres/hour of traditional hood ventilation apparatus, wall jet speed: 4 meter per seconds, path clearance d:2.5 millimeter) result.
Shown in these test results, in hood ventilation apparatus according to the present invention, the air-flow that is not collected into of collecting hood front portion effectively.
As mentioned above, in hood ventilation apparatus according to the present invention, by peripheral surface assembly wall wall jet guiding piece suction inlet (for example the pollutant of culinary art such as cooktop surface or gas-cooker source generation is inhaled into), by the wall jet air-flow that flows along the surface of wall jet guiding piece, in peripheral part generation negative pressure of wall jet guiding piece.As a result, can will spread from the culinary art source, depart from collecting chamber, the gas that is discharged into the outside of hood ventilation apparatus then be collected in the suction inlet.
As a result, even under the little situation of capacity, also can prevent Pollutants Diffusion by the collecting chamber of contaminant collecting being gone into hood ventilation apparatus.And can spread to the user's who is cooking face by the pollutant that stops heat and improve the culinary art comfort level.
Because the present invention can implement by various ways, and need not break away from spirit of the present invention and inner characteristic, so be appreciated that unless otherwise defined, the foregoing description is not limited by any details in the aforementioned description, but should in the spirit and scope that appending claims limits, extensively constitute, therefore, all modifications in this claims scope or equate with this scope all drops in the scope of appending claims.

Claims (20)

1, a kind of hood ventilation apparatus comprises:
Cover comprises and is installed in culinary art source top and lower surface has the main body that is used to suck the suction inlet that contains the gas of cook byproduct, and extends to main body top and discharge the discharge duct of the gas that is sucked;
First air blast is installed in the discharge duct, is used to produce the suction with in the gas inhalation mask;
The wall jet guiding piece is installed in the periphery of main body, is used to make the gas in the cover to flow along the surface of wall jet guiding piece; And
Second air blast is located in the main body, is used for providing gas to the wall jet guiding piece.
2, hood ventilation apparatus as claimed in claim 1, wherein main body side surface is an opening, end at a side place of the opening of main body of the overhead gage of main body is equipped with the gas guided plate, between an end of the lower baffle of gas guided plate and main body, be installed with the wall jet guiding piece, and between the surface of gas guided plate and wall jet guiding piece, be formed with the wall jet passage.
3, hood ventilation apparatus as claimed in claim 2 wherein is projected into the lower baffle plate that is lower than main body downwards to the lower portion of wall jet guiding piece, thereby is installed in the peripheral surface of main body.
4, hood ventilation apparatus as claimed in claim 2, wherein the gas guided plate has constant radius of curvature along the surface of wall jet guiding piece.
5, hood ventilation apparatus as claimed in claim 2 wherein has constant gap between wall jet guiding piece and gas guided plate.
6, hood ventilation apparatus as claimed in claim 4, wherein the wall jet guiding piece is annular tube shaped, and the ratio of the diameter of height from the lower baffle plate of main body to the center of wall jet guiding piece and wall jet guiding piece is 0 to 0.25.
7, hood ventilation apparatus as claimed in claim 5, the gap between the end of wall jet guiding piece and gas guided plate is between 1.5 millimeters to 4 millimeters.
8, hood ventilation apparatus as claimed in claim 1, wherein the wall jet lead-frame is installed in the main body, and covers second air blast, but does not comprise a side of the opening of the main body that the wall jet guiding piece is installed.
9, hood ventilation apparatus as claimed in claim 8, wherein on a surface of wall jet lead-frame, be formed with the installing hole that is used to install second air blast, and integral body is connected with installation portion on the wall jet lead-frame, and this installation portion is used to cover installing hole and second air blast is installed.
10, hood ventilation apparatus as claimed in claim 9, wherein installation portion has through hole, is discharged into extraneous gas by first air blast and flows in this through hole on the ground, effect lower part of the suction of second air blast.
11, hood ventilation apparatus as claimed in claim 1 wherein is formed with through hole on the overhead gage of main body, second air blast sucks gas from this through hole thus.
12, hood ventilation apparatus as claimed in claim 1, wherein the gas that sucks suction inlet by first air blast by second blower section offer the wall jet guiding piece.
13, hood ventilation apparatus as claimed in claim 2, wherein the wall jet guiding piece is a ring pipe, the initial angle of wall jet of a side of opening that is discharged into main body is between 30 ° and 60 °, the speed of wall jet is the 3-5 meter per second, wherein, this initial angle is between virtual vertical line and wall jet emission direction through the center of wall jet guiding piece as baseline.
14, hood ventilation apparatus as claimed in claim 1, wherein the wall jet guiding piece is located at the front portion of main body periphery.
15, hood ventilation apparatus according to claim 1, wherein the wall jet guiding piece is installed in front portion and two sidepieces of main body periphery.
16, hood ventilation apparatus as claimed in claim 1, wherein the wall jet guiding piece is made by material that can printing opacity, and the in-built lighting lamp.
17, hood ventilation apparatus as claimed in claim 2 wherein has constant gap between an end of wall jet guiding piece and main body lower baffle plate.
18, hood ventilation apparatus as claimed in claim 1, wherein second air blast is a centrifugal fan.
19, hood ventilation apparatus as claimed in claim 2 wherein also is provided with crooked middle guide plate between gas guided plate and wall jet guiding piece.
20, hood ventilation apparatus as claimed in claim 1, wherein the wall jet guiding piece is the tabular of bending.
CNB2005101369211A 2004-12-20 2005-12-20 Hood ventilation apparatus Expired - Fee Related CN100432545C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020040108799 2004-12-20
KR10-2004-0108799 2004-12-20
KR1020040108799A KR100608704B1 (en) 2004-12-20 2004-12-20 Walljet ventilation apparatus for kitchen hood

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Publication Number Publication Date
CN1811279A true CN1811279A (en) 2006-08-02
CN100432545C CN100432545C (en) 2008-11-12

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KR (1) KR100608704B1 (en)
CN (1) CN100432545C (en)
AU (1) AU2005244606B2 (en)

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CN106594831A (en) * 2016-12-16 2017-04-26 美的集团股份有限公司 Jet flow smoke gathering device and smoke exhausting device
CN106594831B (en) * 2016-12-16 2019-04-30 美的集团股份有限公司 Jet stream holds together cigarette device and fume extractor
CN106765389A (en) * 2016-12-20 2017-05-31 美的集团股份有限公司 Fume extractor

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AU2005244606A1 (en) 2006-07-06
KR100608704B1 (en) 2006-08-08
EP1672285A1 (en) 2006-06-21
AU2005244606B2 (en) 2007-07-12
EP1672285B1 (en) 2017-03-22
CN100432545C (en) 2008-11-12

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