HOT-WATER BOILER Russian patent published in 1999 - IPC

Abstract RU 2137049 C1

FIELD: heating systems. SUBSTANCE: boiler has tight shell filled with water inside which flue chamber and fire tubes are located. Fire tubes are provided with heating elements fitted at clearance. heating elements have form of helical coil made from smooth tube and inserted in fire tube forming spiral passage. One end of heating element tube is connected to water volume of boiler and other end is connected to feed water pipe line. EFFECT: increased heating surface due to helical form of heating elements; intensified heat exchange; enhanced reliability; enhanced maintainability of boiler. 1 dwg

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RU 2 137 049 C1

Authors

Jugaj G.K.

Dates

1999-09-10—Published

1998-03-03—Filed