HYDROJET CLEANER AND METHOD FOR CLEANING THE INTERIOR OF A COILED TUBULAR DEVICE

摘要

A hydrojet cleaning device (1) for cleaning the interior of a curved or coiled tubular device comprising a flexible hose (3) having one end connectable to a supply of pressurized water, and one end provided with a jet nozzle (5). The flexible hose is provided with a plurality of circumferential spacers (6) distributed over at least a section of the length of the hose. The spacers can for example comprise pulleys (11). Method of cleaning a coiled tubular line, such as a spiralled heat exchanger using such a hydrojet cleaning device. The distance between the spacers may, e.g., be such that the section of the hose between the spacers is entirely spaced from the interior wall of the tubular line wall over its full length.