Public building flue system and control method thereof

Abstract

The invention discloses a public building flue system. The system is characterized in that air outlets of range hoods communicate with a public flue, the range hoods are provided with indoor unit control systems, an air outlet channel communicating with the public flue is arranged at a roof, an outdoor main fan is arranged in the air outlet channel, an air pressure sensor used for detecting the outlet pressure of the public flue is arranged in the air outlet channel, a main control system capable of communicating with the indoor unit control systems is arranged on the roof, and the main control system can correspondingly adjust the rotating speed of the outdoor main fan according to the number of the started range hoods and the outlet pressure, received from the air pressure sensor, of thepublic flue. According to the public building flue system, the main control system can correspondingly adjust the rotating speed of the outdoor main fan according to the number of the started range hoods and the outlet pressure, received from the air pressure sensor, of the public flue, so that the constant negative pressure of the flue is ensured, a good smoke discharging effect is achieved, theproblems such unsmooth smoke discharging and smoke returning are solved, and the system is high in efficiency and stable in operation.

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, the smoke exhaust performance of the existing residential flue is not stable enough. When the cooking peak is affected by the outside wind, there are problems such as high internal pressure of the flue, difficulty in exhausting smoke, and odor of the returned smoke. Even if the main fan at the to

Images