DE1029500B - Steam generator for thermal power plants using an electric arc - Google Patents

Description

Steam generator for thermal power plants using electric arcs The invention relates to a steam generator for thermal power plants using an electric arc and consists in the fact that within one also serving as a steam generating space, of one Graphite jacket of completely enclosed combustion chamber in a high-current coal arc of water is injected and that this furnace of a plurality of concentrically in such a spaced boiler walls is surrounded that each by two adjacent boiler walls a steam room is formed, the one in the steam rooms generated steam is fed to a mixer with adjustable feed water supply. In the case of the invention, water injected into the high-current coal arc therefore passes for evaporation, whereby in a downstream mixer by adding feed water the required steam maturity is achieved.

Technically usable superheated steam can then be withdrawn from the mixer will. In the invention, steam is generated in a multi-boiler system. At the same time, the combustion chamber is designed for the very high temperature of the one provided there High-current carbon arc of the vapor space and is limited by a graphite jacket. He represents the center of the system. The following boilers are arranged so that a new steam room is formed by two boiler walls. All so educated Rooms accommodate feed water. Only the combustion chamber gets its feed water injected, directly into the anode flame. The injection nozzles are arranged in such a way that that the jets collide in the flame axis and atomize the feed water.

It is known that such a high tension steam for technical reasons is not to be used. The heat to be dissipated is therefore initially from the graphite wall added to serve to heat up the space surrounding the combustion chamber, which in turn heats the next room. This process extends up to the outermost room, which is used to preheat feed water, air and, if applicable Fuels. In the invention, the total amount of heat generated Made usable on the spot without major heat losses occurring. A very good thermal efficiency is thus achieved. There aren't any Water tube boilers, boiler tube boilers and pipe systems for generating superheated Steam required, so that the steam generator according to the invention relatively is simple in structure and also one compared to known steam generation systems requires far less space. The proposal has already been made carbon, metals and other solid materials with the help of the high-current carbon arc To vaporize substances directly with suitable introduction into the wick of the positive carbon. It has also already been proposed, the highly heated and thus very reactive vapor of a solid substance - especially carbon - in Bring high-current carbon arc into contact with hydrogen or other gases, in order to achieve new reactions or known reactions in a new way. In contrast The invention relates to the generation of steam for thermal power plants for which For the first time the high-current coal arc is made usable, whereby the already mentioned Result in advantages.

Claims (1)

PATENT CLAIM: Steam generator for thermal power plants by means of an electric arc, characterized in that water is injected into a high-current coal arc within a furnace that also serves as a steam generation chamber and is completely enclosed by a graphite jacket, and that this furnace is surrounded by a plurality of boiler walls arranged concentrically at such a distance that A steam chamber is formed by two adjacent boiler walls, with the steam generated in the steam chambers being fed to a mixer with a controllable feed water supply. Documents considered: German Patent No. 521 139; Book: »Hochstromkohlebogen« by Prof. Finke1nburg, Springer Verlag, 1948, p. 214.