Laminar flow operation room purification is divided into clean grade, do not know the level of operation corresponding to different, but also for medical staff operation restrictions are also different.
The outlet of purge engineering and the position of filter are mainly on the wall of one side of the purification workshop. The position of the blowing entrance is on the wall opposite to the outlet of the outlet. Although the air flow state is horizontal laminar flow, the air flow in the lower side will be gradually polluted. The temperature range is mainly at 22 C + 1 - 3 C, and the pressure difference between indoor and outdoor is 5--25Pa (0.5 - 2.5mmH2O).
The mechanical room needed in the purification process is medium and large, and the material of the building is limited. The difficulty of industry needs a little higher technology, and the size of the room is limited. And the operating area of the room is also limited.
The outlet and filter position of the purge project are in the front of the air conditioning wind pipe. The inlet position is on the side of the floor, and the air flow is easy to produce turbulence. The air flow rate (air velocity) is 20 to 50 times /h, the temperature range is 22. 1 to 5 C, the pressure difference between indoor and outdoor is 5 - 25Pa (0.5 - 2.5mmH2O), and the material needed in the process is limited. In addition, the mechanical room needed is relatively small, the cleanup engineering is difficult to control and the working area of the room is also limited, but medical personnel can not be restricted.
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