FIELD: ventilation.
SUBSTANCE: present invention relates to a method for distribution of ventilation air injected into rooms of a dwelling or discharged from them through a distribution network containing distribution channels. A method for distribution of ventilation air injected into rooms of a dwelling or discharged from them through a distribution network containing distribution channels is described, in which one or more sensors of the need for ventilation of a room, located in at least one room, are used, and a pressure sensor is used, while the pressure sensor is installed to measure pressure in a common supply line, when the method is applied to supply air, or installed to measure pressure in a common exhaust line, when the method is applied to exhaust air, wherein controlled control valves are used in the method to control distributed air. The movement of air is carried out at the minimum pressure Pm in the common line, determined by sensors of the need for ventilation of a room and aerodynamic characteristics of the distribution network, while the method includes the first stage, at which information about the need for ventilation of a room is collected by at least one of sensors of the need for ventilation of a room and converted into required air costs Qn related to each distribution channel; the second stage, at which, for each of n ventilation air distribution channels, air injection pressure Psn or air discharge pressure Pen is calculated, which is necessary in the common line to ensure the required air flow Qn in each distribution channel, while it is assumed that the control valve is in the maximum opening position, and pressure drop coefficients Ktn conditioned by drops of pressure during air movement in corresponding distribution channels are taken into account; the third stage, at which the maximum pressure Pm is determined from calculated values of air pressure Psn or Pen, wherein this value Pm is the minimum pressure that meets ventilation requirements in all rooms, and the fourth stage, at which opening positions αn are calculated for each control valve, which allows one to get the air flow configured in each distribution channel, depending on pressure Pm, required air flow Qn, and coefficient Ktn of pressure drop during air movement in each distribution channel, while information about the opening position is transmitted to control valves.
EFFECT: reduction in energy consumption and reduction in noise pollution.
12 cl, 1 dwg
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Authors
Dates
2022-08-26—Published
2018-12-18—Filed