Intelligent air curtain fume hood

Abstract

The present invention provides an intelligent air curtain fume hood, which includes cabinet which further includes a cabinet body, a working platform, an observation window and an air exhausting device; an inclined air curtain module; an air outlet device which is arranged on one side of the working platform and close to one side of the observation window; an air volume control device; an intelligent window control part and a data processing and control module which is arranged on the cabinet body and electrically connected to the air volume control device, a window drive device and a window positioning and detecting device. The data processing and control module receives window position signals sent by the window positioning and detecting device to control the air volume control device to adjust air volume of the air exhausting device and the air exhausting device and to control motions of the window drive device. Since the inclined air curtain module is arranged on the cabinet body, an inclined air curtain flow field is provided to prevent gasses from flowing outside to the environment during operation so as to avoide operation environments from being polluted.

Description

technical field [0001] The invention relates to an intelligent air curtain exhaust cabinet, in particular to use the flow field distribution of the oblique air curtain to cover the gas generated during operation in the working space, and to use the variable air volume control theory to reduce the probability of gas escaping. An oblique air curtain intelligent exhaust cabinet that achieves safety protection and energy-saving effects. Background technique [0002] The traditional exhaust cabinet is equipped with an exhaust device on the top of the cabinet, and the gas in the working area is guided to the ventilation duct by negative pressure suction and then discharged. However, the amount of exhaust air will directly affect the exhaust efficiency of the gas. It is known The proper exhaust device cannot effectively discharge the gas in real time, which may affect the health of the operator. [0003] To solve this problem, the known technology discloses the use of upper and lo...

AI Technical Summary

Problems solved by technology

Although the above technology can effectively reduce the probability of gas escape, it has not been further explored to combine the Variable Air Volume (VAV) control theory and automatically adjust the matching ratio between the wind speed and the suction speed according to the window position to maintain the most appropriate air curtain. Flow field

[0004] And in actual use, the position of the observation window will affect the smoothness of the operator's movements. When the position of the observation window is often manually adjusted during the operation, it is easy to guide the gas into the external environment and cause pollution, and because of Cross-contamination by touching window handles

Furthermore, after the operation is completed, the operator often forgets to turn off the relevant equipment due to the negligence of the operator, which causes troubles and unnecessary waste of energy

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