초록 ▼

A steam generator with a water lance sprayer for cleaning a surface of a heat exchangers of the steam generator, and more particularly combustion-chamber heat-transfer surfaces in steam boilers, can have an outlet opening swivel-type supported in the wall of the steam generator and its rear parts sw

A steam generator with a water lance sprayer for cleaning a surface of a heat exchangers of the steam generator, and more particularly combustion-chamber heat-transfer surfaces in steam boilers, can have an outlet opening swivel-type supported in the wall of the steam generator and its rear parts swivel-type suspended. Such a lance blower is provided with a polydirectional movability in a plane at the outlet opening of the water lance blower without contamination to ensure that the jet meeting the opposite boiler wall describes an exactly defined course. This is done by providing a flange at the outlet opening of the blowpipe, which flange can be attached to a segment of a cardan joint with the cardan joint being fastened in the combustion-chamber wall. The rear part of the blowpipe is preferably arranged in a guide, which guide is vertically shiftable on a vertical spindle, with the vertical spindle being shiftable, at the top and at the bottom thereof, horizontally on a horizontal spindle, and with the guide being formed by a housing that is non-rotatably positioned on the vertical spindle. The guide preferably carries a fork-shaped accommodation containing a cardan-shaped cage which internally is designed as a sleeve for holding the blowpipe in an axially shiftable manner.

대표청구항 ▼

In a steam generator, a means for washing contaminants off at least a first surface of a heat exchange member, the steam generator having a combustion chamber for burning fuel to generate heat; a first chamber adjacent said combustion chamber for receiving heat generated by combustion from the combu

In a steam generator, a means for washing contaminants off at least a first surface of a heat exchange member, the steam generator having a combustion chamber for burning fuel to generate heat; a first chamber adjacent said combustion chamber for receiving heat generated by combustion from the combustion chamber, a heat recovery chamber for containing water to be heated by heat generated by combustion, the heat exchange member being disposed between said first chamber and said heat recovery chamber, and the first surface of the heat exchange member being disposed in said first chamber, said means for washing comprising: nozzle means for ejecting fluid under pressure against said first surface, the nozzle means having a first end for being disposed toward the first surface of the heat exchange member and a second end disposed opposite said first end, said nozzle means defining an axial direction between said first and second ends; means for pivotably mounting said nozzle means in the first chamber at a position substantially opposite said first surface; means for supplying fluid under pressure to said nozzle means; means for pivoting said first end of said nozzle means relative to said second end of said nozzle means to move said first end of said nozzle means along at least: a first substantially linear path; and a second substantially linear path disposed angularly to said first path to define a plane of movement of said first and second paths, said plane of movement being disposed angularly with respect to said axial direction of said nozzle means; said means for moving comprising: first moving means for moving said first end of said nozzle means along said first substantially linear path, said first moving means comprising: a first substantially linear member, said first substantially linear member defining said first substantially linear path; first guide means for being moved along said first substantially linear member, said first guide means comprising means for receiving said first end of said nozzle means therein for movement of said nozzle means with said first guide means; and first apparatus for moving said first guide means along said first substantially linear member; and second moving means for moving said first substantially linear member in said plane of movement.