Abstract: A rotary steam boiler comprises a rotatable member mounted in a housing including heating means. The rotatable member comprises a shaft with a plurality of axially extending ducts arranged about the shaft and a plurality of pipes each having opposite ends connected to one of said ducts and having a spiral configuration, the pipes extending radially about the shaft. Inlet and outlet heads are positioned at opposite ends of the ducts, respectively, and are arranged to communicate with the ducts during rotation of the shaft whereby steam may be continuously directed through the ducts and pipes to heat the steam as the shaft rotates. A preheater and a superheater increase the efficiency of the rotary steam boiler. The rotary steam boiler may be adapted for use with nuclear power stations.

Abstract: A rotary steam boiler comprises a rotatable member mounted in a housing including heating means. The rotatable member comprises a shaft with a plurality of axially extending ducts arranged about the shaft and a plurality of pipes each having opposite ends connected to one of said ducts and having a spiral configuration, the pipes extending radially about the shaft. Inlet and outlet heads are positioned at opposite ends of the ducts, respectively, and are arranged to communicate with the ducts during rotation of the shaft whereby steam may be continuously directed through the ducts and pipes to heat the steam as the shaft rotates. A preheater and a superheater increase the efficiency of the rotary steam boiler. The rotary steam boiler may be adapted for use with nuclear power stations.