Drive system for a water lance blower with a housing for blocking and flushing medium and a method for its operation

摘要

A water lance blower for cleaning heating installations, wherein a water lance (6) is movably (5) arranged with its mouth on or in a hatch (2) and can blow a water jet through the heating installation, which is in operation and is flowed through with flames and/or smoke, onto wall areas which can be reached from the hatch (2), wherein the water lance (6) is movable by at least one movement element, wherein path sensors are provided for precise determination of the position of the water lance (6), and wherein at least the area of the hatch (2) is sealed by a housing (31) to which blocking and flushing medium can be admitted. The water lance blower (6) can be guided along certain pre-calculated or previously memorised lines of movement at pre-calculated or previously memorised speeds, in particular dependent upon the position, by means of the measured values. The supply of blocking and flushing fluid can be controlled by pressure and/or temperature.