PRE-heat Inc. was commissioned to manufacture two PRE-Heat Model V10/33-40-116-6S heat exchanger for a metal manufacturing and recycling facility. This system consisted of two cooling tower heat exchangers that were used to recover heat from a thermal fume incinerator on a brass and copper chip recycle dryer. The primary heat exchanger within the system was designed to recover heat from 13,200 SCFM, 1,600ᵒF air leaving a thermal fume incinerator. It had to have the capability for 17,850 SCFM outside air to be heated up to 800ᵒF and re-supplied. The secondary exchanger allowed for a cool exhaust air stream to leave the primary exchanger down to 450ᵒF before entering a secondary exchanger used to cool air bag-house filtration system for final cleaning. The cooling air stream for each exchanger is 10,000 SCFM of 90ᵒF outside air. Together, the two exchangers were installed in series for the hot air stream with separate cooling air circuits.
Both the hot and cold heat exchangers were made from stainless steel tube and tube sheets. Additionally, auxiliary equipment was designed as part of the overall system, including a carbon steel bottom hot air inlet and outlet plenum and a top hot air u-bend plenum. The plenum provides internal insulation, a structural steel support framework, and access doors for unit cleaning.
PRE-heat Inc prides itself on creating custom innovative designed heat exchangers that meet customer specifications and high quality and efficiency standards.
To learn how we can create the system that meets your requirements, contact PRE-heat Inc.