CONTROL APPARATUS FOR REDUCING RADON IN SOIL

摘要

The present invention relates to an air volume variable soil exhaust radon reduction control device, wherein a plurality of soil exhaust piping parts embedded in the floor of a plurality of space parts separated by a predetermined area in a building, respectively, and each soil exhaust piping part communicate with each other It is connected to a guide pipe for inducing the flow of radon existing in each soil exhaust pipe to the roof side of the building, and it is installed in each soil exhaust pipe to control the air flow rate moving each soil exhaust pipe. a plurality of damper parts, a soil exhaust fan installed in the guide pipe part to forcibly flow radon existing in each soil exhaust pipe part to the outside, and a plurality of radon concentrations to measure the radon concentration in each space part When the radon concentration value measured by the measurement unit and any K-th radon measurement unit among the plurality of radon measurement units exceeds the preset reference radon concentration value, the K-th damper unit is configured to reduce the radon concentration by a preset reference opening rate ( After performing the first control mode of controlling to open to O) and simultaneously controlling the soil exhaust fan to operate for a preset operating time at a preset reference operating rate (P), K-th radon during a preset reference radon concentration reduction time When the radon concentration value measured from the measuring unit is not reduced by the preset average reduction rate of the radon concentration, the second control mode is performed to control the K-th damper to be opened further by the preset increasing opening rate from the current opening rate of the K-th damper unit. By including a control unit that repeatedly performs the second control mode until the current open rate of the damper unit reaches the maximum open rate, it is possible to effectively reduce radon in the soil entering the room by discharging radon in the soil out of the building.