Commercial oil fume purification device and control method of commercial oil fume purification device for fire extinguishment

Abstract

The invention discloses a commercial oil fume purification device. The commercial oil fume purification device comprises a range hood main body, an infrared visual inspection component for monitoringthe temperature of the upstream region of the range hood main body, and an indoor fire extinguishing device for extinguishing the fire in the upstream region of the range hood main body, wherein the infrared visual inspection component is electrically connected to a first controller of the range hood main body; and the range hood main body comprises a smoke exhausting pipeline. The commercial oilfume purification device is characterized by further comprising an outdoor fire extinguishing device for extinguishing the fire in the smoke exhausting pipeline. The invention also discloses a controlmethod of the commercial oil fume purification device for fire extinguishment. Compared with the prior art, the commercial oil fume purification device has the advantages that the simultaneous fire extinguishment at the front end and the rear end can prevent the fire from spreading backwards; the effect of protecting components and facilities at the rear end is better than the effect of purely protecting the front end, and thus, the safety damage is reduced; the need for replacing the components of the whole device is eliminated; and the fire extinguishment speed is relatively fast, and thus,the loss is reduced at the greatest extent.

Description

technical field [0001] The invention relates to the field of oil fume purification, in particular to a commercial oil fume purification device and a fire extinguishing control method of the commercial oil fume purification device. Background technique [0002] Due to the unique characteristics of Chinese cooking, the amount of oily fume is very large. After long-term use, a large amount of oily dirt will accumulate inside the range hood, resulting in a decrease in performance and poor effect of oil absorption. For catering units, the oily fume with large particle size naturally settles and adsorbs on the surface of the flue. As we all know, in some restaurants, especially the kitchens of Chinese restaurants, high-rising flames can often be seen. Once these flames are sucked into the air duct, It is very easy to ignite the internal grease, which will cause fire and other hazards to personal and property safety. Therefore, how to improve the fire resistance of oil fume and rea...

AI Technical Summary

Problems solved by technology

[0003] At present, there is a single means of realizing fire warning for commercial oil fumes, mainly manual judgment, or an electric fire damper on the smoke exhaust pipe. When the temperature is higher than the additional temperature of the fire damper, the electric fire damper will automatically close. Certain limitations: First, the position of the valve is generally set at the rear end, and the valve can only be closed when the flame burns to the rear end. At this time, the fire hazard has already caused a great impact; secondly, the front-end fire cannot be avoided by closing the valve with the spread

[0005] There is only one fire extinguishing device in the above-mentioned prior art, which is arranged at the front end or the rear end of the oil fume purification device, and if it is separately arranged at the front end of the oil fume purification equipment, it is impossible to prevent the fire from continuing to spread backwards, causing the rear end, smoke pipe, etc. If it is installed separately at the rear end of the oil fume purification equipment, the front end may be out of reach for the part of the air duct that has been burned, which will cause the rear end smoke pipe, valve and even purification parts to burn out due to open flames Happening

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