Building public flue smoke discharging system and control method thereof

Abstract

A building public flue smoke discharging system comprises a public flue and extractor hoods installed on various floors, and further comprises an air energy heat exchanging device capable of transferring heat energy absorbed by air into the public flue and a first temperature sensor used for detecting the temperature of lampblack gas in the flue; a second temperature sensor used for detecting an outdoor temperature is installed on a roof; a heat exchanging device control system and a main control system are further included; the main control system reads the value of the second temperature sensor; the heat exchanging device control system reads the value of the first temperature sensor and the value, sent by the main control system, of the second temperature sensor, and controls the air energy heat exchanging device according to a temperature difference value between the interior of the public flue and the outdoor environment. The building public flue smoke discharging system can change the temperature difference of the temperature of the lampblack gas in the flue and the outdoor environment by controlling the air energy heat exchanging device, the flue heat pressure effect is enhanced, the flue pressure distribution is improved, and the flue smoke discharging capacity is improved.

Description

technical field [0001] The invention relates to a public flue for a building, in particular to a smoke exhaust system for a public flue for a building and a control method thereof. Background technique [0002] At present, there are more and more high-rise residential buildings, and most of the high-rise smoke exhaust uses public flues to exhaust the smoke. The outlets of high-rise public flues are generally set on the top of the floor, and the power provided by the range hood is limited, resulting in unsatisfactory smoke exhaust effects. During peak cooking hours, low-floor oil fumes cannot be exhausted, and even oil fumes in the flue may flow backward. At present, in order to solve the problem of poor smoke exhaust of existing range hoods, people have proposed the concept of "central purification system", which generates power through the main fan placed at the top of the public flue, and cooperates with the range hood fan on the user side to Improve smoke exhaust effect....

AI Technical Summary

Problems solved by technology

However, grease particles are easy to accumulate on the blades of the main fan on the roof, which not only damages the dynamic balance of the fan, resulting in increased noise and vibration, but also requires regular cleaning and maintenance, which is troublesome to maintain

Moreover, the main fan is set on the common exhaust channel, which will increase the exhaust resistance of the system

Especially when the number of floors is greater than 35, the negative pressure generated by the main fan on the top floor cannot be effectively transmitted, and pressure leakage occurs, which has almost zero impact on the smoke exhaust of low-rise users, which instead causes energy waste

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