Batch-type scrubbing-ball replacement system for heat exchanger

Details Batch-type scrubbing-ball replacement system for heat exchanger Batch-type scrubbing-ball replacement system for heat exchanger

1984-03-16

1985-12-03

Cline, William R.

Heat exchange

With cleaning means for heat exchanger

15 35, 134 8, F28G 112

Patent

active

045561028

ABSTRACT:
A tube-type heat exchanger having inlet and output conduits and tubes connected therebetween, and a return conduit extending from the output to the inlet conduit is, as is known, traversed by a coolant liquid from the intake to the output conduit through the tubes. Balls are released into the intake conduit from the return conduit and pass with the coolant through the tubes to clean same. These balls are trapped in the output conduit and introduced back into the return conduit where each ball's momentum is measured and outputs corresponding thereto are generated. These outputs are compared with a set-point signal corresponding to minimum acceptable ball momentum and all of the balls from the conduits are withdrawn and replaced with fresh balls when in a predetermined period of time a predetermined number of the outputs fall below the set-point signal.

REFERENCES:
patent: 3872920 (1975-03-01), Honma et al.
patent: 4314604 (1982-02-01), Koller
patent: 4420038 (1982-12-01), Okouchi et al.

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