DE492445C - Device for electrical heating of liquids, gases, etc. Like. By induction - Google Patents

Description

Device for electrical heating of liquids, gases and the like. by induction The invention relates to a device for electrical heating of liquids, gases and the like by induction, in which the connected in parallel Existing pipe rings, the flowing central line leading to the secondary winding of the transformer, and consists in the fact that devices are provided, to short-circuit and cancel the short-circuit of the individual, from the supply and discharge of the flowing medium, disconnectable rings are used. This `becomes a fine-level control received, while previously a control only by switching off of the whole transformer would be possible.

In the drawing, an embodiment of the device is shown schematically.

Fig. Z shows a vertical section and Fig. A a horizontal one Cut.

Figures 3 through 5 are details.

ca is a magnetic core excited by a primary winding b and c the ring pipe system through which steam or water or a mixture of both flows and in which the secondary voltage required for heating is generated by placing the rings at suitable points, e.g. B. at d, be electrically short-circuited. Any switching devices can be used for this, which are switched by hand individually or in groups or automatically in connection with heat or pressure regulators or both. The pipe rings c connected in parallel are provided with thermal insulation e inside and outside and are individually electrically isolated from the inflow and outflow lines at f. Valves g are used to switch individual or all rings on and off. These valves can be operated either manually or automatically by a heat or pressure regulator or both. It is assumed that in a steam remote heating at its preliminary end, the temperature of the steam is to be increased in order to use this steam z. B. to be able to fry or bake. The coil b of the core a is then switched on by hand or by remote control or automatically, and depending on the intended amount and height of heat, the valves g are opened and short circuits are made until all rings are switched on. In this way all rings are connected in parallel. If they are to be connected in series in whole or in part for the purpose of further heating of the flowing medium, valves can also be fitted in the collecting pipes between two rings connected in parallel. As a result, the same agent can be repeatedly exposed to heating.

The individual valves with their adjusting elements can be in valve boxes be accommodated in the manner of a controller, or it can be accommodated in the manner of the piston control opening and closing take place by means of a piston valve. This piston control too can be connected to the device for short-circuiting the pipe rings so that both processes take place at the same time. In Fig.q. and 5 this is shown schematically, for the sake of clarity, the device associated with the short-circuit contacts is drawn on the other side of the piston control.

Claims (1)

PATENT CLAIM: Device for electrical heating of liquids, Gases and the like by induction, in which the pipe rings connected in parallel existing, the flowing medium leading line the secondary winding of the transformer forms, characterized in that there are devices for short-circuiting and removing the short circuit of the individual, from the supply and discharge of the flowing Serve by means of disconnectable pipe rings (c).