Central flue system and air volume adjusting method thereof

Abstract

The invention discloses a central flue system. The central flue system comprises extractor hoods installed on different floors, air outlets of the extractor hoods communicate with a public flue through smoke pipes, electric check valves are installed in the smoke pipes, and a flue main draught fan is installed in the public flue. The central flue system is characterized in that each extractor hoodcomprises a draught fan and further comprises a master control system and an electric check valve control system; and in the state that the draught fans of the extractor hoods are started, the mastercontrol systems communicate with the electric check valve control systems so as to obtain the starting state of the whole building, and therefore the running state of the flue main draught fan systemand the electric check valves is controlled. The invention further discloses an air volume adjusting method of the central flue system. Under the premise that the indoor extractor hood draught fans are reserved in the central flue system, a main machine is installed on a public flue opening, the problem that cooking fumes discharging is difficult for users on lower floors of a high-rise housing is solved, cooking fumes are efficiently purified, the whole building can still achieve cooking fume discharging when the main machine breaks down, meanwhile, the use frequency of valve blocks of the electric check valves and the main machine is reduced, the failure rate of the valve blocks of the electric check valves and the main machine is reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a central flue system, in particular to a central flue system and a method for adjusting the air volume thereof. Background technique [0002] Present high-rise dwelling adopts indoor range hood, smoke pipe, check valve and public flue mostly to be connected, and the oil fume in the kitchen is exhausted in the middle of public flue through smoke pipe by indoor powered range hood. However, the cooking habits of Chinese cooking fumes and the current situation of large air volume and high wind pressure of existing range hoods make the pressure distribution in public flues extremely uneven, and there is a problem of poor smoke exhaust. The smoke effect is poor, especially during the peak cooking period; at the same time, the valve plate of the check valve is not closed tightly, which is prone to return smoke and odor. Especially for engineering range hoods, due to their relatively poor performance, it is more obvious that it is di...

AI Technical Summary

Problems solved by technology

The existing central flue system places a high-power fan at the flue opening, and cancels the fan of the indoor range hood, and cooperates with the flow adjustment to meet the flow usage needs of users on each floor, but it will inevitably face failure problems, cleaning problems, and oil fume purification. question

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