CN2283811Y - Gas jet type cooker hood - Google Patents

Gas jet type cooker hood Download PDF

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Publication number
CN2283811Y
CN2283811Y CN 96200360 CN96200360U CN2283811Y CN 2283811 Y CN2283811 Y CN 2283811Y CN 96200360 CN96200360 CN 96200360 CN 96200360 U CN96200360 U CN 96200360U CN 2283811 Y CN2283811 Y CN 2283811Y
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CN
China
Prior art keywords
fume
jet pipe
exhaust opening
enclosure
gas jet
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 96200360
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Chinese (zh)
Inventor
鄂严生
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Individual
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Individual
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Publication date
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Priority to CN 96200360 priority Critical patent/CN2283811Y/en
Application granted granted Critical
Publication of CN2283811Y publication Critical patent/CN2283811Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to a fume exhauster for kitchen ranges, which overcomes the shortages of bad fume exhaust effect and high cost of traditional fume exhausters. The utility model uses the gas jet stream principle and adopts a fume exhaust cover which is formed by two drum-shaped or elliptical barrel-shaped rotational flow covers. The lower part of a fume exhaust opening is provided with a top jet stream pipe, a transverse jet stream pipe is arranged in the fume exhaust cover, and a motor and a fan are positioned in an air intake pipe. Air in the rotational flow covers generates rotational flow under the action of the transverse jet stream pipe, and air in the lower part of the rotational flow covers generates vortex flow to discharge oil fume intensively. The utility model has the advantages of increased fume exhaust effect, electricity saving and low cost, and is an ideal fume exhauster.

Description

The gas jet type induced-draft fan
The utility model belongs to a kind of stove and accessory induced-draft fan for kitchen use.
Traditional induced-draft fan is used for the kitchen and extracts oil smoke, is arranged on gas furnace upper end 90 centimeters usually, is cuboid, is provided with two motors and fan sheet in it, and induced-draft fan upper end exhaust opening and two fan mouths communicate.Start driven by motor fan sheet during use and rotate, extract the oil smoke that distributes when combustion gas is cooked.The induced-draft fan power consumption of this structure, it is unsatisfactory to extract effect, and flabellum is seriously polluted.Induced-draft fan can only or the like the oil smoke that distributes could be when arriving near the fan mouth with its suction fan mouth.Because oil smoke on gas furnace is subjected to the influence of indoor air flow, and non-rectilinear upwards rises, often disperse, so near the oil smoke of fan mouth can only the part inspiration being positioned at.About according to statistics 40% oil smoke still can not be got rid of by induced-draft fan.
Therefore, order of the present utility model is: design a kind of gas jet type induced-draft fan, utilize the gas jet principle to increase smoke discharging effect, power saving and cost are low.
The utility model is by enclosure, motor and fan sheet and conduit are formed, and enclosure is made of two drum shapes that are arranged side by side or oval-shaped cyclone cover, and exhaust opening connects the enclosure upper and lower side, the exhaust opening bottom is provided with the top jet pipe, is provided with the transverse jet pipe in the enclosure.Jet pipe upper end, top is fried dough twist circumvolution shape jet pipe.Cyclone cover upper end side back communicates with exhaust opening.Can be provided with deflector in the enclosure, motor and fan sheet are positioned at air intake, transverse jet pipe and top jet pipe simultaneously with wind in cyclone cover and exhaust opening, said structure design has realized the purpose of this utility model.
The utility model has the advantages that and utilize gas jet principle (seeing also Fig. 5) that the driven by motor fan sheet in the blast pipe is blown into cyclone cover 11,12 and exhaust opening with outdoor wind simultaneously by top jet pipe 62 and transverse jet pipe 61.The shunting of transverse jet pipe turns clockwise cyclone cover 11 interior air, cyclone cover 12 interior air are rotated counterclockwise, it is the eddy current that the air generation on the stove and accessory is risen gradually that thereby the interior air generation of two cyclone covers rotating flow drives its lower end, the oil smoke that produces when stove and accessory is cooked forms one eddy current of concentrating, and like cyclone oil smoke is rotated to the cyclone cover center.The top jet pipe also rotates wind simultaneously and is blown in the exhaust opening, makes exhaust opening produce the negative pressure of rotation, air in the cyclone cover is sucked exhaust opening discharge outdoor.Loose thereby the oil smoke that produces when stove and accessory is cooked is outer, concentrate extraction outdoor.According to test smoking rate is about 90%.Reduced number of motors on the other hand, promptly saved the energy and reduced cost again significantly.
Below in conjunction with Figure of description and embodiment the utility model is further described.
Fig. 1, be the utility model schematic diagram
Fig. 2 flows to schematic diagram for overlooking with eddy flow of the utility model Fig. 1
Fig. 3 cuts open schematic diagram for the A-A face of Fig. 2
Fig. 4 is the utility model principle schematic
Enclosure 1 of the present utility model constitutes by two drum shapes that are arranged side by side or with the cyclone cover 11,12 of drum shape, and exhaust opening 2 connects the enclosure upper and lower sides, and the exhaust opening bottom is top jet pipe 62 not, is provided with transverse jet pipe 61 in the enclosure.The effect of two cyclone covers is to make wind produce eddy flow in cyclone cover, and two cyclone covers are arranged side by side and intersect on both sides.Exhaust opening is positioned at the postmedian of crossing cyclone cover, is through hole.For guaranteeing that air flows out cyclone cover in the cyclone cover, should guarantee to communicate with exhaust opening in two cyclone cover upper end side back.For easy to make, also can make approximate square or similar eye border frame shape enclosure, two deflectors 4 are set in the enclosure of its transverse jet pipe both sides, also establish two stream plates 3 on limit, two enclosure rear portions, deflector is all curved, makes deflector surround approximate circle or ellipse also can form the eddy flow effect.
Motor 51 and fan sheet 5 are positioned at blast pipe 6, outside blast pipe one end connecting duct 9 communication chamber, extract outdoor air to guarantee that room air is fresh.The blast pipe other end communicates with top jet pipe and transverse jet pipe.Transverse jet pipe and top jet pipe simultaneously with wind in cyclone cover and exhaust opening in.During concrete enforcement, can consider transverse jet Guan Weiyi pipe or two pipes.When being two tubular constructions, two pipes lay respectively at the cyclone cover side.When being a transverse jet pipe, transversely movable sleeve pipe can be set on the transverse jet pipe, when the transverse jet tube hub was aimed at the center that two cyclone covers intersect, two cyclone cover center joinings were divided into two strands with wind, and wind enters left and right sides cyclone cover simultaneously.Mobile transverse jet pipe is aimed at first in the cyclone cover, can make first air intake in the cyclone cover, and another is air intake not then, reaches single cover exhausting effect.
The wind that blows into turns clockwise in cyclone cover 11, is rotated counterclockwise in cyclone cover 12.Make air generation rotating flow 7 in two cyclone covers, the air that drives its lower end produces eddy current 8, and the oil smoke that stove and accessory is distributed is concentrated the inspiration cyclone cover.The top jet pipe is positioned at the exhaust opening lower end, for guaranteeing that top jet pipe 62 blows into the effect of the wind generation negative pressure of exhaust opening, should make jet pipe upper end, top be fried dough twist circumvolution shape jet pipe 63, like this under the effect of fried dough twist circumvolution shape jet pipe 63, when blowing into exhaust opening, wind make exhaust opening produce negative pressure for rotation wind is beneficial to.Fried dough twist circumvolution shape jet pipe is twisted shape, and its top mouthful cross-sectional area should be 1/4th to 2/3rds of exhaust opening top mouthful cross-sectional area.So that the oil smoke in the cyclone cover can be by exhaust opening along peripheral inspiration.The exhaust opening upper end is still used outside the conduit communication chamber.
During use, in the driven by motor fan outdoor air is sent into transverse jet pipe and top jet pipe along conduit suction blast pipe, make enclosure produce rotating flow oil-collecting cigarette, exhaust opening produces negative pressure, draws the oil smoke in the cyclone cover, discharges outdoor, the front is described in detail, no longer repeats.
In a word, the utility model is simple in structure, cost of manufacture is low, and result of use is good, is A kind of desirable household kitchen is taken out induced-draft fan.

Claims (6)

1, a kind of gas jet type induced-draft fan, formed by enclosure, motor and fan sheet and conduit, it is characterized in that enclosure is made of two drum shapes that are arranged side by side or oval barrel-shaped cyclone cover, exhaust opening connects the enclosure upper and lower side, the exhaust opening bottom is provided with top jet pipe 62, is provided with transverse jet pipe 61 in the enclosure.
2,, it is characterized in that jet pipe upper end, top is fried dough twist circumvolution shape jet pipe 63 according to the described a kind of gas jet type induced-draft fan of claim 1.
3,, it is characterized in that cyclone cover upper end side back communicates with exhaust opening according to the described a kind of gas jet type induced-draft fan of claim 1.
4, according to the described a kind of gas jet type induced-draft fan of claim 1, it is characterized in that to be provided with deflector in the enclosure.
5,, it is characterized in that motor and fan sheet are positioned at blast pipe according to the described a kind of gas jet type induced-draft fan of claim 1.
6, according to the described a kind of gas jet type induced-draft fan of claim 1, it is characterized in that transverse jet pipe and top jet pipe simultaneously with wind in cyclone cover and exhaust opening in.
CN 96200360 1996-01-09 1996-01-09 Gas jet type cooker hood Expired - Fee Related CN2283811Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96200360 CN2283811Y (en) 1996-01-09 1996-01-09 Gas jet type cooker hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96200360 CN2283811Y (en) 1996-01-09 1996-01-09 Gas jet type cooker hood

Publications (1)

Publication Number Publication Date
CN2283811Y true CN2283811Y (en) 1998-06-10

Family

ID=33886952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96200360 Expired - Fee Related CN2283811Y (en) 1996-01-09 1996-01-09 Gas jet type cooker hood

Country Status (1)

Country Link
CN (1) CN2283811Y (en)

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee