CN2173917Y - Window type centrifugal cooking fume exhauster - Google Patents

Abstract

A window type centrifugal smoke exhaust ventilator. It is composed of motor, blade wheel, cut-off plate, movable baffle plate and water-proof sleeve. The machine is different from other oil fume extraction machines in that: the air sucked into the machine is directly discharged out of the room along the tangential direction of the rotation direction of the impeller, namely the horizontal direction, and the obstruction of the components to the air flow is small. The impeller adopts a special structure, turbulence is not easy to generate during operation, and the main part of the air passage is in an involute shape, so that air is smooth. The machine is also provided with a cut-off device and a movable diversion baffle plate for preventing the gas from forming vortex, so that the machine has high efficiency and large suction force. The machine can be directly fixed on a window frame for use.

Description

Window centrifugal cooking fume exhauster

The utility model is a kind of window formula smoke exhaust ventilator of getting rid of indoor foul atmosphere.

In recent years, on the market in the patent documentation smoke exhaust ventilator existing multiple, what have is handsome in appearance multiple functional, but common weak point is that air flue turns to too much, and air-flow is hindered greatly, exhaust is not smooth, thereby effect is not good enough.

The utility model is at above-mentioned deficiency, designed a kind of centrifugal smoke exhaust ventilator of window formula of simple and reasonable, highly effective.

The utility model is the exhaust outlet design horizontal direction in the tangential direction of impeller direction of rotation, has also adopted the turbulent flow and vortex structure and the device that reduce gas.

Concrete structure of the present utility model as depicted in figs. 1 and 2.

Fig. 1 is the inside vertical view that removes top board.

Fig. 2 is the rotation diagram of complete machine A-A direction.

At first contrast the device that two figure simply introduce this machine, motor ［ 1 ］ is contained on the top board ［ 2 ］, and output shaft gos deep into downwards in the machine chamber. Impeller on the motor shaft is made up of primary blades ［ 3 ］, auxiliary blade ［ 4 ］ and support ［ 5 ］. Air flue is made of part top board and base plate ［ 6 ］, exhaust side wallboard ［ 7 ］, movable diaphragm ［ 8 ］ and involute air flue wallboard ［ 9 ］, and settle along vane rotary direction (direction shown in the arrow) expansion ［ 9 ］. Be equipped with the intercepter plate contour with air flue ［ 10 ］ at the exhaust side wallboard and near between the impeller outer edge. The exhaust muzzle has water string ［ 11 ］, also has in addition electric-controlled plate ［ 12 ］, the devices such as outage ［ 13 ］.

Excellent characteristics of the present utility model are carefully stated as follows: to be that horizontal direction is directly discharged outdoor because the gas in the suction machine is tangential direction along the vane rotary direction, and member is little to the inhibition of air-flow like this, high efficiency; The blade of impeller vertically is straight, and the impeller support has some Passage, during operation, under the cooperation of auxiliary blade, gas can be thrown away impeller by primary blades equably, thus the turbulence power consumption is little; Effective ground resistance that arranges of intercepter plate is ended air-flow form eddy current in air flue, has improved exhaust efficiency; The dilatation of involute shape air flue is so that air-flow can be unimpeded at it; Movable diaphragm in the downstream direction setting of left and right sides involute wallboard intersection, when duplex running, it can stop the intersection that heads on of left and right sides air-flow, when unit operation, it can turn to 15-25 degree (shown in the dotted line) to opposite side under air-flow promotes, further reduced vapour lock; When unit moves such as right machine, can form the principle of negative pressure according to adjusting air-flow on every side at it, the air-flow of right machine can suck gas from left machine air inlet equally by the space of ［ 8 ］ and left intercepter plate; Be enclosed within the water string of exhaust outlet, because it has fixedly splash guard ［ 15 ］ of one group of adjustable splash guard ［ 14 ］ and, can prevent effectively that the intrusion machine such as rainwater is interior or indoor; This machine can directly be fixed on the window frame and use.

The utility model design is the two-shipper that exhaust outlet unites two into one, and also can be designed to according to same design the combination of unit and alternate manner thereof.

Claims (6)

1, the centrifugal smoke exhaust ventilator of a kind of window formula is made of motor [1], top board [2], impeller [3] [4] [5], base plate [6], movable diaphragm [8], involute wallboard [9], intercepter plate [10], water string parts such as [11].It is characterized in that: during operation, the gas in the suction machine is directly discharged outdoor along the tangential direction of impeller direction of rotation; Impeller is made up of one group of primary blades [3], one group of auxiliary blade [4] and support [5]; Most of air flue of wound impeller is that involute shape and suitable impeller direction of rotation expansion are settled; Its inner outer rim near impeller of intercepter plate [10] all is housed on exhaust outlet two side wall panels [7]; Be provided with a movable diaphragm [8] at left and right sides involute wallboard intersection downstream direction; Be with a water string [11] in exhaust ports.

2, smoke exhaust ventilator according to claim 1 is characterized in that impeller by one group of primary blades, and one group of auxiliary blade and the support that has some passages are formed, and blade vertically is straight all being fixed on the support.

3, smoke exhaust ventilator according to claim 1 is characterized in that all being provided with the intercepter plate contour with air flue on the exhaust outlet two side, its inner outer rim near impeller.

4, device according to claim 1 is characterized in that being provided with a movable diaphragm at left and right sides involute wallboard intersection downstream direction.

5, according to claim 1,3,4 described smoke exhaust ventilators, it is characterized in that the air flue wallboard comprises exhaust side wallboard, intercepter plate, movable diaphragm and involute shape wallboard, wherein involute shape wallboard accounts for major part.

6, smoke exhaust ventilator according to claim 1 is characterized in that being with a water string at exhaust outlet, and its front end has one group of adjustable splash guard ［ 14 ］, and the upper back is curved a fixing splash guard ［ 15 ］.

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