CN2212154Y

CN2212154Y - Blow wind fume exhaustiing fan

Info

Publication number: CN2212154Y
Application number: CN 95201216
Authority: CN
Inventors: 张仲模; 刘玉彪
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-20
Filing date: 1995-01-20
Publication date: 1995-11-08
Anticipated expiration: 2005-01-20

Abstract

The utility model relates to a blow wind oil-fume exhausting fan. Compared with a traditional oil-fume exhausting fan, the utility model is provided with a blower which can generate suction. The blower is composed of a centrifugal type electric fan, a jet exhauster and a case. Oil fume in a kitchen is sucked in an insufflation tuyere of the blower through a fume hood and an exhaust duct by a low pressure generated by the blower when the blower works. Then, the oil fume is ejected by an air outlet. Owing to a separated structure arranged at the outside of the fume hood of the blower, the noise is less; the energy is saved; the exhaust efficiency is high. Moreover, the oil fume does not pass through all electric appliance parts. The utility model is safe and is easy to clean and maintain.

Description

Blow wind fume exhaustiing fan

The utility model relates to a kind of smoke exhaust, relates to a kind of smoke exhaust that utilizes injector (jet pump) to form suction particularly.

Smoke exhaust purifies air as the exhaust emission of kitchen eliminating oil smoke and cooking stove generation, keeps indoor cleaning, is subjected to numerous residents' welcome, becomes one of household electronic products of family's indispensability gradually.Have various smoke exhausts now on the market, its difference all be in shape, on technological level and the product quality, but on the mechanism of mist extractor and basic structure and no change, promptly utilize in the box petticoat pipe one or two typhoon machines to produce suction oil smoke and waste gas sucked in the box petticoat pipe, through blast pipe be discharged to outdoor or flue in.This existing smoke exhaust exists distinct issues: noise is big, and electric component is subjected to fume pollution serious, may cause that electric leakage jeopardizes safety, and complete machine also is difficult for cleaning maintenance simultaneously.

Therefore, the purpose of this utility model is to overcome the above-mentioned defective of existing smoke exhaust, a kind of novel smoke exhaust is proposed, it not only can realize the basic function of mist extractor well, and noise is little, energy-conservation, exhaust efficiency height, oil smoke and waste gas all also are easy to cleaning maintenance without all electric components (except the gas sensor) both safety.

Above-mentioned purpose of the present utility model is achieved like this, promptly designed a kind of bleed type smoke exhaust, it has petticoat pipe, the motor fan assembly, electrical box, exhaust duct and elbow, it is characterized in that: described motor fan assembly is by motor and centrifugal electric blower fan centrifugal or that fan blade is formed, a this centrifugal electric blower fan and an injector and a housing have been formed the hair-dryer that produces suction, injector has the hollow cylinder configuration, injector nozzle is connected with the outlet of centrifugal electric blower fan and stretches into to form with this end from an end of injector cylinder and is tightly connected, the other end of cylinder is open and directly leads to an air port of giving vent to anger that is fixed on the housing, has an air draught inlet on the sidewall of cylinder, be used for being tightly connected with the air outlet of exhaust duct or the air outlet formation of direct and petticoat pipe, on the housing of receded disk impeller both sides, be provided with air inlet, be used to make outside air to enter receded disk impeller.

Because above structure, driving receded disk impeller when the centrifugal electric blower fan turns round makes outside air spray with the high velocity air form from the suction of air inlet air port and through the injector mouth, sucking place, air port generation low pressure, make the oil smoke in the kitchen be drawn into the suction air port thus, be ejected outdoor via the air port of giving vent to anger again through petticoat pipe and/or exhaust duct.The main distinction of this bleed type smoke exhaust and traditional smoke exhaust is the motor fan assembly is separated and only adopted a centrifugal fan from traditional box-shaped petticoat pipe.Dynamo-electric motivation fan assembly of the traditional oil smoke of this change and petticoat pipe integrative-structure have just brought following advantage into " split type " structure: owing to do not have the motor fan assembly just to eliminate the vibration or the resonance of petticoat pipe in the petticoat pipe, also eliminated the noise that vibration and resonance produce; Two typhoon machines become a typhoon machine and have just reduced loss, saved the energy; Simultaneously owing to adopt centrifugal fan to utilize high velocity air to siphon away oil smoke, make oil smoke and waste gas without blower fan, reduced gas-flow resistance, exhaust efficiency is improved, and oil smoke and waste gas is not by electric components such as motor fan assembly and electric wires, they are polluted cause electric leakage, not only guarantee safety but also make complete machine be convenient to clean, therefore just realize the purpose of this utility model well.

Do further to understand for other configuration and advantage, preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing to the utility model bleed type smoke exhaust.

Fig. 1 is the front view of a preferred embodiment of the utility model bleed type smoke exhaust;

Fig. 2 is the vertical view of the foregoing description.

A preferred embodiment of the utility model bleed type smoke exhaust has been shown in Fig. 1 and 2, and they are the front view and the vertical view of this smoke exhaust.This smoke exhaust and traditional family expenses smoke exhaust similarity are to have petticoat pipe 4, motor fan assembly 17, electrical box 5, exhaust duct 2 and elbow 3.The operated key 6 that comprises control circuit in the electrical box 5, the gas sensor 23 of warning device, illuminating lamp 8, transparent glass 7, buzzer 9, alarm lamp 10, relay indicating light 11 and hold-down screw 12 automatically; Be provided with flow deflector 13 in the elbow 3; These parts are structurally similar or identical with the appropriate section of traditional smoke exhaust, thereby no longer they are described in detail.

The difference of bleed type smoke exhaust of the present utility model and traditional smoke exhaust is, wherein the centrifugal electric blower fan 17(available technology adopting be made up of motor 19 and receded disk impeller 18 of motor fan assembly is axial fan); A this centrifugal electric blower fan 17 and an injector 15 and a housing 14 have been formed the hair-dryer 1 that produces suction; This injector 15 has the hollow cylinder configuration, injector nozzle 20 is connected with the air outlet of centrifugal electric blower fan 17 and stretches into, forms with this end and be tightly connected from an end of injector cylinder, the other end of cylinder is open and directly leads to an air port 22 of giving vent to anger that is fixed on the housing 14, have one on the sidewall of cylinder and suck air port 21, be used for being tightly connected with the air outlet 24 of exhaust duct 2 or the air outlet formation of direct and petticoat pipe 4; On the housing 14 of the both sides of receded disk impeller 18, be provided with air inlet air port 16, be used to make outside air to enter receded disk impeller 18.

According to the embodiment of the present utility model shown in Fig. 1 and 2, the suction air port 21 of injector 15 is to be tightly connected mutually with the air outlet 24 of exhaust duct 2 in the described hair-dryer 1, at this moment hair-dryer 1 utilizes screw to be contained on the wall in open air (outside the kitchen), and the exhaust duct 2 and the air outlet of elbow 3 and petticoat pipe 4 of hair-dryer 1 by passing wall forms and be tightly connected.Like this, driving receded disk impeller 18 when motor 19 running makes outdoor air 16 suck and through the form ejection of driving nozzle 20 with high velocity air from the air inlet air port, produce low pressure sucking 21 places, air port, oil smoke in the kitchen is drawn into through petticoat pipe 4, elbow 3 and exhaust duct 2 sucks air port 21 and be ejected via the air port 22 of giving vent to anger again.

By above description, the main distinction of bleed type smoke exhaust of the present utility model as can be seen and traditional smoke exhaust is the motor fan assembly is separated from traditional box-shaped petticoat pipe, has formed " split type " structure.This structure is except that bringing above-mentioned advantage and effect, and also owing to do not have the motor fan assembly in the petticoat pipe, so petticoat pipe can not make traditional box structure, and adopts turriform shell petticoat pipe 4(to see Fig. 1).Gas-flow resistance is significantly reduced, both improved exhaust efficiency, reduced the noise that flue gas flows, impacts and friction produces again in petticoat pipe.

According to another preferred implementation (not shown) of the present utility model, the suction air port 21 of injector 15 directly is tightly connected with the air outlet of petticoat pipe 4 in the hair-dryer 1, at this moment hair-dryer is positioned at inside, kitchen, the air port 22 of giving vent to anger of hair-dryer 1 is connected with exhaust duct 2, by exhaust duct oil smoke is sent in open air or the flue.Though this layout noise is than big in the last example, other advantage, as energy-conservation, exhaust efficiency is high, oil smoke and waste gas all not by electric component, be convenient to advantage such as cleaning and all exist.And, brought new characteristics, promptly air inlet air port 16 is led to indoorly, just makes smoke exhaust also have the function of room ventilation fan.

Obviously in the scope of the utility model design, can also make various remodeling, for example the cylinder injector in the utility model hair-dryer is used instead Venturi tube (i.e. the pipe of one section eel-like figure, tube section is little by big gradual change, and is big by little gradual change again) and can be realized the purpose of this utility model equally.Therefore, the bleed type smoke exhaust of all employing injectors or Venturi tube all should be in the protected scope of the utility model.

Claims

1, a kind of bleed type smoke exhaust, its tool is by petticoat pipe is arranged, the motor fan assembly, electrical box, exhaust duct and elbow, it is characterized in that: described motor fan assembly is the centrifugal electric blower fan (17) that built-in motor (19) and centrifugal fan (18) are formed, this centrifugal electric blower fan (17) has been formed the hair-dryer (1) that produces suction with an injector (15) and a housing (14), injector (15) has the hollow cylinder configuration, an injector nozzle (20) is connected with the air outlet of centrifugal electric blower fan (17) and stretches into from an end of injector cylinder, be tightly connected with this end formation, the other end of cylinder is open and directly leads to an air port of giving vent to anger (22) that is fixed on the housing (14), has an air draught inlet (21) on the sidewall of cylinder, be used for being tightly connected with the air outlet (24) of exhaust duct (2) or the air outlet formation of direct and petticoat pipe (14), on the housing (14) of the both sides of receded disk impeller (18), be provided with air inlet (16), be used to make outside air to enter receded disk impeller (18).

2, bleed type smoke exhaust according to claim 1, it is characterized in that: the suction air port (21) of injector (15) and the air outlet (24) of exhaust duct (2) are when being tightly connected mutually in the described hair-dryer (1), hair-dryer (1) utilizes screw to be contained on the outdoor wall, and exhaust duct (2) and the air outlet of elbow (3) and petticoat pipe (4) of hair-dryer (1) by passing wall forms and be tightly connected.

3, bleed type smoke exhaust according to claim 1, it is characterized in that: when the suction air port (21) of injector (15) directly is tightly connected with the air outlet of petticoat pipe (4) in the hair-dryer (1), hair-dryer (1) is positioned at inside, kitchen, the air port of giving vent to anger (22) of hair-dryer (1) is connected with exhaust duct (2), and exhaust duct (2) leads to open air or flue.

4, bleed type smoke exhaust according to claim 1 is characterized in that: described petticoat pipe (4) is a kind of turriform shell petticoat pipe.

5, bleed type smoke exhaust according to claim 1 is characterized in that: the structure of the available Venturi tube of wherein said cylindrical injector (15) replaces.

6, bleed type smoke exhaust according to claim 1, it is characterized in that: comprise control circuit operated key (6) in the described electrical box, the gas sensor of warning device (23), illuminating lamp (8), transparent glass (7), buzzer (9), alarm lamp (10), relay indicating light (11) and fixed screw (12) automatically.