DE32029C - Steam generator made from screw j tubes - Google Patents

Description

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IMPERIAL

PATENT OFFICE

The boiler consists of a system of ring-shaped cast iron pre-boilers a, which are connected to one another through openings b and also form a single body. This system of pre-boilers is followed by several boiler tube systems c, pushed concentrically into one another and independent of one another, which, wound in a helical manner, all rise upwards and are screwed to a steam collector in a suitable manner.

In order to obtain the largest possible vapor space, the vapor collector d, like the pre-boiler α, also consists of several cast-iron hollow rings which, when connected to one another through openings, also form only one body. The steam collector has a safety valve ^ "on the uppermost hollow ring, which opens if the voltage is too high and allows the steam to escape. The steam collector is placed outside the area of the hot gases by means of a cover plate g and is very easily accessible. The steam discharge pipe also closes here.

The steam generator is h at the low sub-part of a furnace and the upper part thereof is directly formed by the closely spaced to each other turns of the äüfsersten boiler tube system. The heating gases rise up from the furnace h and coat the pre-boiler a, the inner boiler pipe system and the inner surface of the central boiler pipe system c. Then they reverse their direction of movement on the cover plate g , step into the first chamber i of the descending fire train, make a complete cycle up to the partition k, then pull through the opening / down into the second chamber Z _{1 of} the last fire train, etc., up to they, having arrived in screw turns at the lower end of the train, leave the apparatus through the smoke pipe m. Due to the arrangement of the helical spring balancer, the heating gases are fully utilized. At the point where the heating gases leave the last draft, the boiler tubes are placed a little further apart, and the resulting opening is closed off with a sheet metal ring , which at the same time carries the flue pipe socket. For the sake of a better appearance, the whole thing is covered with a thin coat ρ .

Claims (4)

Patent Claims: ι. Steam generator, consisting of several independent, concentrically pushed boiler pipe systems c , which all rise upwards, adjoin an associated pre-boiling ring α and steam collecting hollow ring d and are only connected to each other through these rings. On the steam generator claimed under 1.: 2. The system shown in the drawing of several cast iron pre-boiling rings a, which are connected to one another through openings b , are located within the boiler room and form only a single body. 3. The system of several cast iron steam collectors shown in the drawing hollow rings d, which are connected to one another through openings b , all lie outside the boiler room and, like the pre-boiler, form only a single body. 4. The application of an upwardly rising central fire train in combination with a subsequent, downwardly rising, helically wound influx. The application of the outermost boiler system c in such a way that the same thing at the same time forms the outer shell of the furnace. 1 sheet of drawings.