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Air-handling unit
Nuclear safety level NNS Seismic category of complete machine Class II Quality assurance level of complete machine QRA3
Range of applicationApplicable Standard "Design and Construction Rules for Mechanical Equipment of PWR Nuclear Islands" RCC- M "Design and Construction Rules for Electrical Equipment of PWR Nuclear Islands" RCC-E "Code on Nuclear Air and Gas Treatment" ASME AG-1
1.The unit adopts a high-strength cage type heavy-duty frame, the box can withstand pressure difference between the inside and outside 4500Pa, with high strength, good sealing, no cold bridge and so on;
2.Integral wrapped type windward bypass valve and streamlined double-blade split structure reduce equipment volume and have low flow resistance;
3.Rear-bend-type voluteless fan features by small size, light weight, and low noise;
4.The
efficient copper tube copper fin heat exchanger is adopted and the tube plate
flanged-hole is equipped with copper guard ring to reduce local wear and extend
the service life.
"Design and Construction Rules for Mechanical Equipment of PWR Nuclear Islands" RCC- M
"Design and Construction Rules for Electrical Equipment of PWR Nuclear Islands" RCC-E
"Code on Nuclear Air and Gas Treatment" ASME AG-1