CN2424316Y - Ventilator - Google Patents

Abstract

The utility model relates to a ventilator. An air inlet is welded on a front plate of a casing the right upper part of which is opened to be an air outlet of the ventilator; a back plate of the casing and the casing are removable; a motor is fixed on the back plate. The air outlet is larger than the air inlet to reduce air outlet speed, reduce noise and increase the full voltage of the ventilator; because the air inlet is welded on the front plate, vibration on the job is small, and the vibration of an air pipe and a hood connected with the air inlet is reduced to reduce the noise of the overall system; compared with the ventilator with the same model, the noise can be reduced by 10 dB, and the full voltage is increased.

Description

Ventilator

The utility model belongs to blower fan.

At present, the fume extractor that use in the kitchen in restaurant, hotel is an axial fan all, and this blower fan total head is low, and noise is big, and efficient is low, both wastes energy, and its noise is difficult to reach environmental protection requirement again.

The purpose of this utility model is to provide a kind of efficient, low noise ventilator for the kitchen in restaurant and hotel, to overcome the deficiencies in the prior art.

The purpose of this utility model realizes by technological scheme shown in the drawings, it has a motor 1, housing 3, places impeller 4, intake grill 7 and exhaust outlet 5 in the housing, intake grill of the present utility model is welded on the header board 6 of housing, making header board is non-removable integral body, open wide directly over the housing, exhaust outlet for ventilator, the length that makes exhaust outlet greater than impeller in the housing at diameter, be detachable between the back plate 2 of housing and housing, back plate is fixed by screw and housing, and motor is fixed on the plate of back.During the assembling of this ventilator, impeller is fixed on the axle of motor, inserts in the housing, again the back plate is fixed on the housing with screw by the rear portion of housing.

Installation precision height of the present utility model, exhaust outlet are used the wind speed degree and are reduced greater than intake grill, have reduced noise, have increased the total head of blower fan.Because intake grill is welded on the header board, during work its vibration very little, therefore, the airduct that is connected with intake grill and the vibration of petticoat pipe reduce thereupon, and the whole system noise is reduced.Compare with the blower fan of same model, noise can reduce by 10 decibels, and the total head value improves greatly.

Accompanying drawing 1 is the utility model sectional view;

Accompanying drawing 2 is the utility model plan view.

Embodiment

Housing is manufactured by thick 3 millimeters steel plate, long 588 millimeters of housing, and high 547 millimeters, wide 227 millimeters, intake grill is rounded, 300 millimeters of collar extension diameters, back plate adopts thick 4 millimeters steel plate, is fixed on the housing 450 millimeters of receded disk impeller diameters with screw.Exhaust outlet is above housing, and exhaust outlet is rectangle, and long 588 millimeters of exhaust outlet is wide 163 millimeters.Present embodiment is equipped with 1.1 kilowatts motor.The total head value is 500 handkerchiefs.

Claims (1)

1, ventilator, comprise motor, housing, place impeller, intake grill and exhaust outlet in the housing, it is characterized in that intake grill is welded on the header board of housing, making header board is non-removable integral body, opens wide directly over the housing, is the exhaust outlet of ventilator, be the length of exhaust outlet greater than impeller in the housing at diameter, be detachable between the back plate of housing and housing, back plate is fixed by screw and housing, and motor is fixed on the plate of back.

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