Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1989-11-27
1990-12-25
Orsino, Joseph A.
Communications: electrical
Condition responsive indicating system
Specific condition
122379, 73 611, 110185, G08B 2100
Patent
active
049806742
ABSTRACT:
An acoustic ash depostion monitoring apparatus for a boiler arrangement having at least one soot blower. The apparatus comprises at least one tone generating apparatus for generating a tone and at least one tone receiving apparatus, located in proximity to the tone generating apparatus, for receiving the tone generated by the tone generating apparatus. Also provided are controlling apparatus for determining when the tone received by the receiving apparatus falls below a predetermined level and for enabling a soot blower in proximity to the tone generating and tone receiving apparatus when the tone received by the receiving apparatus is determined to have fallen below the predetermined level.
REFERENCES:
patent: 4603660 (1986-08-01), Wynnychyj et al.
patent: 4829246 (1989-05-01), Mathur et al.
Scheibel John R.
Stulen Foster B.
Electric Power Research Institute Inc.
Hofsass Jeffery A.
Orsino Joseph A.
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