精品国产1区-精品国产90后在线观看-精品国产91久久久久-精品国产91久久久久久久-一级一级毛片看看-一级一级特黄女人精品毛片

Automatic air volume adjustment for high-efficiency air supply outlets. On the basis of the original air outlets, air volume sensors and electric control valves are added to monitor the air volume changes of the high-efficiency air supply outlets in real time. According to the pressure difference requirements of different rooms, the air supply and exhaust volume can be automatically adjusted in real time. Ensure that the room pressure is stable. This application firstly solves the cross-contamination (infection) caused by the unstable pressure difference in the room; secondly, it greatly shortens the debugging time of the new project and completely avoids the pressure difference fluctuation caused by the replacement of the filter in the old project.