초록 ▼

The simultaneous heating and mixing of a fluid in a vessel with heated walls and a stirring device can lead to excessively high temperatures at the walls due to the formation of a thick boundary layer. This specification discloses a stirring paddle incorporating a heated element and mounted on a rot

The simultaneous heating and mixing of a fluid in a vessel with heated walls and a stirring device can lead to excessively high temperatures at the walls due to the formation of a thick boundary layer. This specification discloses a stirring paddle incorporating a heated element and mounted on a rotatable shaft. The heating element is connected in series with a rotor winding mounted on the shaft so that, when the shaft rotates, a heating current flows through the heating element.

대표청구항 ▼

Apparatus for heating and mixing a fluid, comprising a vessel for fluid to be heated and mixed, a mixing paddle in the vessel and rotatable on a shaft to mix the fluid, a magnetic rotor core mounted on the shaft to rotate with the shaft, an electric conductor circuit formed of a rotor winding on the

Apparatus for heating and mixing a fluid, comprising a vessel for fluid to be heated and mixed, a mixing paddle in the vessel and rotatable on a shaft to mix the fluid, a magnetic rotor core mounted on the shaft to rotate with the shaft, an electric conductor circuit formed of a rotor winding on the rotor core in series with a heating conductor in the paddle, and induction means to generate, at least on rotation of the shaft, a varying magnetic flux in the rotor core to induce a heating current in said rotor winding and the heating conductor in the paddle.