Patent ID: 6293113
Filing Date: 2001-09-25
Classification: D21F,D21G

Abstract:
A cooling system for removing at least one of excess process heat and excess machine heat from one of a paper and cardboard machine, the cooling system comprising:at least one closed primary cooling cycle arranged to remove excess heat;at least one closed secondary cooling cycle arranged to remove the excess heat from the at least one closed primary cooling cycle;at least one primary heat exchanger coupled to each at least one primary cooling cycle for transferring the excess heat from said at least one closed primary cooling cycle to said at least one closed secondary cooling cycle;a tertiary cooling water path comprising a cooling water feed line and a cooling water return line coupled to the one of the paper and cardboard machine; andat least one secondary heat exchanger coupled to said secondary cooling cycle for transferring the excess heat from said at least one closed secondary cooling cycle to said tertiary cooling water path.