Device for sealing retractable soot-blower lances

Details Device for sealing retractable soot-blower lances Device for sealing retractable soot-blower lances

1987-07-22

1988-06-14

Favors, Edward G.

Heat exchange

With cleaning means for heat exchanger

15377, 122379, 122390, 122392, 277 53, 277 56, 277DIG8, F28G 100

Patent

active

047505486

ABSTRACT:
Device for sealing retractable soot-blower lances at the point of insertion through the wall of a heat exchanger. A labyrinth box consists of lamellas. The lamellas narrowly surround the soot-blower lances and are secured at the outer edge in a wall box. The wall box is tightly sealed to the wall of the heat exchanger and has an air-barrier connection. The object is to allow one wall box to accommodate several soot-blower lances, even when they have different outside diameters. Several soot-blower lances accordingly extend through the wall box and several lamellas radially surround the soot-blower lances alternately either narrowly or loosely.

REFERENCES:
patent: 2803848 (1957-08-01), Demart
patent: 4093242 (1978-06-01), Terry
patent: 4302019 (1981-11-01), Hotger
patent: 4452183 (1984-06-01), Yazidjian

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