Sludge lance with multiple nozzle jet head

Details Sludge lance with multiple nozzle jet head Sludge lance with multiple nozzle jet head

1983-03-21

1985-02-12

Yuen, Henry C.

Liquid heaters and vaporizers

Cleaning

122383, 122390, 15316R, F22B 3748, F28G 700

Patent

active

044984278

ABSTRACT:
A fluid lancing apparatus is provided for cleaning sludge from between tubes of a tube bundle of a heat exchanger. The heat exchanger tubes are arranged in a plurality of parallel equally spaced rows. The lancing apparatus includes an elongated lance arm and a jet head attached to the lance arm. The jet head includes at least first and second longitudinally spaced transversely directed nozzles, a longitudinal distance between the first and second nozzles being equal to a spacing between the parallel equally spaced rows of the tube bundle. An alignment rod is provided for initially positioning the lancing apparatus. Methods of utilizing such an apparatus are also disclosed.

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