Apparatus and method for cleaning condenser tubes of a refrigera

Details Apparatus and method for cleaning condenser tubes of a refrigera Apparatus and method for cleaning condenser tubes of a refrigera

1985-01-15

1986-08-19

King, Lloyd L.

Heat exchange

With cleaning means for heat exchanger

15 351, 151042, 62505, F28F 2700

Patent

active

046064036

ABSTRACT:
In a refrigerator of a compression type or an absorption type, including a condenser and an evaporator, an apparatus for cleaning condenser tubes in which a cleaning brush movably mounted in each tube is moved through the tube by reversing a flow of cooling fluid therethrough so that the inner wall of the tube can be cleaned by the moving cleaning brush. Switching means switches from a temperature control means which controls refrigeration capacity depending upon temperature of a cooling and heating medium within the evaporator during the refrigeration operation, to control by pressure restriction means which restricts the pressure within the condenser to not exceed a predetermined value, before the flow of the cooling fluid in the tube is changed for cleaning the tube. When the inner pressure of the condenser is lowered at least by a fixed value from the predetermined value, the flow of cooling fluid may be changed within the condenser without changing from the temperature control to the pressure restriction control. Method for cleaning the condenser tubes of a refrigerator in this fashion is also provided.

REFERENCES:
patent: 3146605 (1964-09-01), Rachfal et al.
patent: 3805547 (1974-04-01), Eber
patent: 4418747 (1983-12-01), Baron et al.
patent: 4508164 (1985-04-01), Baron

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