Smoke exhaust ventilator and air curtain device

Abstract

The invention discloses a smoke exhaust ventilator which comprises a collecting hood, at least two air exhaust fans, a smoke exhaust tube and an electrical control device. The air exhaust fans are arranged in the smoke exhaust tube along the axis of the smoke exhaust tube. The invention also discloses an air curtain device of the smoke exhaust ventilator, which comprises an air blowing tube bank arranged below a cooking range and an air blowing fan connected with the air blowing tube bank and used for providing wind power. The air blowing tube bank is provided with an air outlet with an opening around the cooking range and corresponding to the collecting hood, and at least one air exhaust fan is installed in the smoke exhaust tube. Because the adopted air exhaust fans have small diameter and low cost and are arranged in the smoke exhaust tube simultaneously, the smoke exhaust ventilator has no turbulence, high air exhaust efficiency, energy saving and high smoke removal rate, and the air flow and the negative suction force of the smoke exhaust ventilator can be conveniently adjusted. After an air curtain is adopted on the cooking range, the smoke is limited within the range of the collecting hood, and the smoke removal rate is greatly increased.

Description

technical field [0001] The invention relates to kitchen equipment, in particular to a range hood and an air curtain device. Background technique [0002] The existing kitchen range hood is to set up the range hood above the stove; there is no partition between the stove and the pot and the surrounding environment, and there is no partition between the pot and the surrounding environment, and the combustion waste gas and cooking fumes are also separated from the surrounding environment. There is no partition, and it is exhausted by the range hood by naturally rising into the range hood; there is a lot of waste gas and smoke overflowing into the indoor environment. To solve this problem, a range hood is provided on the market, and its solution is Lower the gas collection hood of the range hood, change the gas collection hood from directly above the stove to be inclined above the stove, and at the same time change from a single exhaust fan to two exhaust fans, one on the left a...

AI Technical Summary

Problems solved by technology

[0002] The existing kitchen range hood is to set up the range hood above the stove; there is no partition between the stove and the pot and the surrounding environment, and there is no partition between the pot and the surrounding environment, and the combustion waste gas and cooking fumes are also separated from the surrounding environment. There is no partition, and it is exhausted by the range hood by naturally rising into the range hood; there is a lot of waste gas and smoke overflowing into the indoor environment. To solve this problem, a range hood is provided on the market, and its solution is Lower the gas collection hood of the range hood, change the gas collection hood from directly above the stove to be inclined above the stove, and at the same time change from a single exhaust fan to two exhaust fans, one on the left and one on the left, and increase the exhaust volume to achieve The largest smoke removal rate, but this solution has the disadvantages of high cost and the smoke removal rate still needs to be improved. When the above-mentioned solution needs to adjust the air flow and negative pressure suction in different places of use, it is necessary to adjust the size of the range hood, fan It is more troublesome and difficult to make major changes in power, etc.

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