A water-washable fire-proof energy-saving fume hood

Abstract

The invention relates to a water-washable fireproof energy-saving hood, which has a hood body, which is divided into a front cavity, a middle cavity and a rear cavity, and several oil fume dynamic separation and purification units are arranged side by side in the rear cavity of the hood body. Corresponding to each oil fume dynamic separation and purification unit, there is an energy-saving fire prevention valve directly below it; a dynamic separation cleaning module and a stove fire extinguishing module are arranged in the middle cavity; the cleaning module includes a cleaning pipeline and a device in the middle cavity. The annular distribution spray head on each corresponding oil fume dynamic separation and purification unit, the internal pipeline of the annular distribution spray head is connected with the cleaning pipeline, and the on-off of the cleaning pipeline is controlled by the fume hood controller Connection; the fume hood of the present invention makes creative improvements on the basis of the existing design, making its fireproof performance and self-cleaning operation more convenient and faster, and the progress is obvious.

Description

technical field [0001] The invention relates to the technical field of oil fume purification equipment, in particular to a water-washable fireproof energy-saving fume hood. Background technique [0002] Currently on the market, especially in hotels, restaurants, kitchens and other industrial systems that use a lot of stoves or involve multiple exhaust fumes, the fire dampers currently used are general-purpose dampers, and there is no dedicated one inside the hood. damper. Most of the upwind valves on the market now have a square valve body. At present, there is no smoke hood with an inclined damper inside the smoke hood on the market. Most of the oil exhaust hoods on the market are controlled by one fan. When the stove is cooking and cooking, the fan must be turned on at full load, which is an extreme waste of electric energy, and the energy saving situation is extremely unsatisfactory. Moreover, such an oil fume exhaust system is not ideal for the single oil fume exhaust a...

AI Technical Summary

Problems solved by technology

Most of the upwind valves on the market now have a square valve body. At present, there is no smoke hood with an inclined damper inside the smoke hood on the market. Most of the oil exhaust hoods on the market are controlled by one fan. When the stove is cooking and cooking, the fan must be turned on at full load, which is an extreme waste of electric energy, and the energy saving situation is extremely unsatisfactory. Moreover, such a fume exhaust system is not ideal for the single fume exhaust area in the system.

[0003] Of course, there are also technical solutions described in patent applications with application numbers 201910489289.0 and 201910489301.8, that is, once a fire occurs under the fume hood and the temperature reaches a certain fusing value, the temperature sensor on it will set the temperature The situation is fed back to the electric actuator, and the action of the electric actuator can pull the inclined valve plate back and close the fire protection. At the same time, there is also an operating mechanism that uses a tension spring to help reset, but the above mechanisms have shortcomings at the same time, namely Once there is a problem with the executive mechanism or the electronic control mechanism fails, the fire protection function will not be realized, leaving a huge fire hazard, and because the working environment of the oil fume purification equipment itself is quite bad, as the use time increases, The probability of failure of these mechanisms will be greatly increased, thereby increasing the potential safety hazard of fire.

[0004] Another point is that in the above-mentioned fume hood, if the inside of the fume hood is still on fire, or the stove is on fire, it is necessary to bring a fire extinguisher from elsewhere to put out the fire. Once the fire is not extinguished in time, it will cause irreparable losses; The fume hood in the existing oil fume purification system has been used for a long time, and cleaning is a big problem, and it needs to be disassembled to clean it. Especially the oil fume purification system used in large hotel kitchens, its cleaning is very troublesome. It is also a big deficiency that exists in the existing oil fume purification system

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