DE361891C - Hot water generator surrounding the furnace - Google Patents

Description

GERMAN EMPIRE

ISSUED OCTOBER 23, 1922

REICH PATENT OFFICE

PATENT LETTERING

- JVl 361891 - CLASS 36 a GROUP 18

(K 76690 V \ 36a?)

August Krämer and Auguste Müller née Hunger in Dortmund.

Hot water generator surrounding the furnace.

Patented in the German Empire on March 8, 1921.

The invention relates to a heating insert for kitchen stoves and ovens for heating of water that can be directed to radiators. There are already radiators known, which is composed of a number of horizontally and vertically extending tubes are. With these many corners and sharp edges, the Obstructed water circulation. The invention differs from such heating inserts

duiigsartikel by the fact that the two cast-iron flat hollow bodies that make up the insert and which by supply and Drain pipes are interconnected, with guide ribs for the water as well as with egg-shaped and wave-shaped openings are equipped for the passage of the heating gases. As a result of this peculiar shape of the cast body is the one entering Forced water to flow through the cast bodies in a serpentine manner, whereby it is strongly heated.

As a result of avoiding sharp

inner edges of the water-bearing body, the water circulation is facilitated and accelerates without bursts of steam and other flow restrictions.

In the drawing is an embodiment of the heating insert for kitchen stoves shown. Fig. Ι is a perspective view of the entire insert. Fig. 2 is a vertical longitudinal section and Fig. 3 a vertical cross section through a cast body.

The heating insert consists of two equal hollow bodies α made of cast iron, which have approximately the shape of a parallel trapezoid. At the rear end, the cast bodies α are provided with a lower inlet connection c . The connecting pipes d and e , through which the two cast bodies are joined together to form a heating insert, are connected to these nozzles. The cold water enters the heating insert through the middle pipe insert f of the pipe d , while the heated water exits through the pipe insert g of the upper pipe e . In the lower part the cast bodies a have a corrugated longitudinal rib h, through which the entering water is forced to flow to the front end of the cast body and rise up here. Above the rib h , the cast bodies a are provided with a number of egg-shaped openings i and longer passages k arranged above them, the latter being curved or wave-shaped. The openings i and k serve for the passage of flames and smoke gases and are arranged in such a way that the already preheated water brought in through the lower rib h ' washes around the walls of the openings in a serpentine fashion and flows into the upper drainage pipe e. In this way, the water is strongly heated due to the large number of contact surfaces around which the heating gases flow. The rounded shape of the perforations enables the water to flow evenly through, so that sudden blockages in the water circulation cannot occur.

The thickness of the radiator α decreases from below! Above, intermittently, because the heating of the cast bodies by the heating gases is strongest in the upper part of the furnace. At the same time, this formation of the cast body contributes to the even distribution of the water and promotes circulation.

The heating element can also be used for room stoves, in which case the cast bodies α have to be adapted to the shape of the furnace.

The advantages of the present heating insert are partly in the cheap production. The hollow bodies consist of two individual pieces that are easy and quick to produce Cast bodies. The heating gases are particularly good and in the present heating insert effectively used, so that coals are saved and you therefore still have the amount of coal required for cooking Can heat the room.

Claims (2)

Patent Claims: 1. The firing of a stove or oven enclosing hot water generator, consisting of two closed by an upper and a lower connecting pipe flat hollow body made of go cast iron, characterized in that the hollow body (ä) in the lower part with a guide rib (h) for the water and are provided with elongated openings (i and k) above them for the passage of the heating gases. 2. Heating insert according to claim 1, characterized characterized in that the cross-section of the cast body from bottom to top in increments is enlarged. 1 sheet of drawings.