空调冷量与管径对照表(最新)上课讲义

1RT（冷吨）=3.517KW

1ft=304.8mm

1寸DN25

6分DN203\4 4分DN151\2 2分DN81\4

Q=0.0164*V*D2

3.936 1.1191360.6-1.1

12.3 3.4972991.2-1.4

20.15232 5.7299741.2-1.5

31.4888.9530851.2-1.5

49.213.98921.2-1.8

83.14823.641741.2-1.8

157.4444.765431.5-2.2

32893.26131.5-2.6

717.5204.00911.5-2.8

1180.8335.74072.0-3.2

2492.8708.78592.2-3.8