Abstract: There is described herein a method and apparatus for capturing the heat from the web in a web printing system, storing this heat, and then using it to warm the chill rolls to prevent condensation. Particularly, a heat storage tank is used in conjunction with a chill roll cooling system. During startup, the heat from the web is stored in this tank until the reservoir in the tank reaches a pre-set temperature, at which time the chilled water from the chill system is directed to the chill rolls. At each web stoppage, the water from this heat storage tank is flushed to the chill rolls to keep the chill roll temperature above the condensation temperature.

Abstract: This incinerator circulates fumes to be incinerated through a heat exchange chamber; feeds the fumes into a combustion chamber; directs the incinerated fumes through heat exchange tubes to heat incoming fumes; scavenges fume leakage; and recirculates the scavenged fumes for incineration. Leakage of unincinerated fumes is controlled by use of a plurality of scavenging tubes positioned such that their orifices are proximate the hot end tube sheet within the combustion chamber to collect leaking fumes found near the hot end tube sheet and to feed those fumes back to the inlet for incineration.

Abstract: A modular thermal oxidizing device has a heat exchanger and a burner chamber connected to convert volatile, condensable organic compounds to harmless gasses. The heat exchanger includes an internal cold side bypass with cooling tubes extended into a hot side adjacent to the burning chamber. An appropriate aperture or hole tolerance related to the tubes as mounted within the hot side tube sheet is adopted to permit efficient expansion and contraction of the tubes without binding in the tube sheet.