Develop a construction schedule for the purification workshop: There is a sequential order for the construction of the purification workshop, and the extremely wrong practice of constructing which parts of the materials arrive first is eliminated to avoid contamination. The connection between various parts that are allowed to be constructed at the same time should be paid attention to, and secondary construction design drawings should be drawn if necessary.
Installation of high-efficiency filters: Before installing high-efficiency filters in the purification workshop, thorough cleaning work should be done. After 24 hours of trial operation after the purification supply and return air systems are connected, the clean room should be cleaned again and the high-efficiency filters should be installed immediately. filter.
Construction of air ducts for clean air supply and return systems: The inner surface of the air duct must be flat and smooth. Air leakage inspection should be carried out after the air duct is installed and before insulation. The positions of embedded parts, nails or expansion bolts of air ducts, component supports and hangers should be correct, firm and reliable, and the embedded parts should be free of oil and stains and must not be painted.
Set up a dedicated storage room: All material and equipment instructions and certificates should be properly kept so that the data can be completely handed over to the user after completion acceptance. When equipment and materials arrive at the construction site of the purification workshop, they should be strictly inspected, and various process devices should be re-sealed after unpacking and inspection.
Do a good job in sealing the purification workshop: the air flow in the clean workshop must flow in an orderly manner and flow according to the designer's intention. There must be no leakage in places that should not leak. Many people think that in order to balance the fresh air during the construction of the purification workshop, part of the indoor air must be discharged, and it does not matter if it leaks a little. This view is not advisable.
Other matters: Before the construction of the purification workshop, the original building must be thoroughly cleaned and repaired, and the original doors and windows must be sealed. The installation of ultrapure water and ultrapure gas systems in clean workshops must be carried out by qualified professionals.