Title:
【発明の名称】熱交換器及びそのピーク温度制御方法
Document Type and Number:
Japanese Patent JPH0765878
Kind Code:
B2
Abstract:
A hot spot detection system (78) at one location that is fixed with respect to the rotor (12), and a temperature suppression system (62) at another location that is fixed with respect to the rotor. The suppression system is automatically energized by the hot spot detection system when a threshold temperature is detected. Preferably, the suppression system includes one or more pipes (66) that span the radial dimension of the heating element compartments in the rotor. The detection system can be in the conventional location, on the trailing edge (40) of the air inlet duct (32) of the air preheater. The suppression piping (66) is preferably located in the hot end, or air discharge duct (34), of the air preheater. Depending on the location of the suppression piping with respect to rotor rotation, a timing device (100) is preferably employed to start and stop the flow of suppression water into the rotor, just prior to and after the hot spot passes under the piping.
Inventors:
Kent Youzen Ritter
Application Number:
JP2073692A
Publication Date:
July 19, 1995
Filing Date:
January 10, 1992
Export Citation:
Assignee:
AB Air Preheater Incorporated
International Classes:
F28D19/04; A62C3/00; A62C37/40; F28F27/00; (IPC1-7): F28F27/00; F28D19/04
Domestic Patent References:
| JP485051A | ||||
| JP635251A |
Attorney, Agent or Firm:
Kimura Masami
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