HEAT EXCHANGER SCALE REMOVAL APPARATUS AND FLEXIBLE LANCE FOR THE SAME

PROBLEM TO BE SOLVED: To provide a lance elevation assembly apparatus assembly of a scale removal apparatus in which it is easily carried in and out from an inspection hole for a vapor producer, and it can be smoothly stood for elevation. SOLUTION: A scale removal apparatus 10 includes a lance feed...

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Bibliographische Detailangaben
Hauptverfasser:	KASAI KENICHI, YANAGIDA YASUTSUGU, TSUKAMOTO YOSHIMASA, KUWABARA MITSUO, HASHIMOTO SHIGEO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS DECONTAMINATION ARRANGEMENTS THEREFOR HEAT EXCHANGE IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METHODS OF STEAM GENERATION NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT STEAM BOILERS STEAM GENERATION TREATING RADIOACTIVELY CONTAMINATED MATERIAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lance elevation assembly apparatus assembly of a scale removal apparatus in which it is easily carried in and out from an inspection hole for a vapor producer, and it can be smoothly stood for elevation. SOLUTION: A scale removal apparatus 10 includes a lance feed apparatus possessing a cleaning head, a lance elevation apparatus assembly 50 for supporting the lance feed apparatus and vertically elevating the same in flow slots 1b formed respectively in pipe support plates 13a, 13b, and a guide rail assembly 30 for supporting the lance elevation apparatus movably along a tube lane S in a trunk portion 1 of a vapor producer. The lance elevation apparatus assembly includes a substantially cylindrical elevation apparatus body portion 51, and a twin cylinder assembly disposed in the elevation apparatus body portion, wherein the elevation apparatus body portion and the twin cylinder assembly are adapted to pass through the inspection hole 1a integrally.