Heat recovery and air preheating apparatus

Patent · Tue Feb 26 04:00:00 EST 1985

OSTI ID:5566942

Hebrank, W H

Heat recovery and replacement air preheating apparatus for use in industrial heat treating processes is disclosed as including at least a pair of thermal recovery and storage units, wherein each storage unit contains a plurality of heat exchange elements which operate as heat sponges to pick up heat from exhausts as it leaves the dryer and subsequently to put that heat into entering replacement air whereby the cost in elevating the replacement air is greatly reduced. A control valve connected between the two thermal storage units cycles the reverse exhaust and replacement air flows alternately through the thermal storage units in a manner that a substantial amount of exhaust heat is stored and transferred to the replacement air flow. The heat exchange elements are carried at the cold end of the thermal storage units and are of a different construction and material than elements carried near the hot end to permit condensation and removal of exhaust volatile contaminates without blocking flow through and to facilitate cleaning and disposal.

• Assignee: EDB-85-113309
• Patent Number(s): US 4501318
• OSTI ID: 5566942
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
CONTROL EQUIPMENT
ENERGY
ENERGY RECOVERY
ENERGY STORAGE
EQUIPMENT
FLOW REGULATORS
HEAT
HEAT EXCHANGERS
HEAT RECOVERY
HEAT RECOVERY EQUIPMENT
HEAT STORAGE
HEAT TREATMENTS
PROCESS HEAT
RECOVERY
STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
VALVES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION