High energy wash of ljungstrom air preheater

Details High energy wash of ljungstrom air preheater High energy wash of ljungstrom air preheater

1979-09-17

1981-03-17

Bleutge, Robert L.

Cleaning and liquid contact with solids

Apparatus

Operating or controlling device engaged and moved by work or...

134171, 134172, 134181, 239186, B08B 302, B08B 900

Patent

active

042565111

ABSTRACT:
The apparatus disclosed herein is designed for removing solid deposits, which interfere with heat transfer, from the surface of the basket section in an air preheater. In one type of regenerative air preheater, the basket sections rotate around a hub inside a chamber. An I-beam and threaded rod are installed in the chamber parallel to the basket section, at a distance sufficient to allow clearance of the carriage assembly and jet nozzle, or nozzles. The carriage assembly is attached to the rod by a threaded drive block and the carriage straddles the I-beam. A motor drive, which is controlled by an electronic programmer, rotates the threaded rod, to drive the carriage incrementally along the rod and beam. The carriage also includs roller type bearings which aid movement of the carriage along the beam. As the basket section rotates parallel to the moving carriage, a high pressure water jet, or jets, is directed through the nozzle to wash the solid deposits off of the basket section. The high energy jet stream achieves complete removal from the basket section of all deposits which can impede gas flow and limit heat transfer.

REFERENCES:
patent: 998579 (1911-07-01), Herz
patent: 2100343 (1937-11-01), Maycen
patent: 2615529 (1952-10-01), Lincoln
patent: 4019458 (1977-04-01), Kolterer
patent: 4025362 (1977-05-01), Frauenfeld

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