US Patent No. 10,557,474

ROTARY MACHINE AND METHOD FOR THE HEAT EXCHANGE IN A ROTARY MACHINE


Patent No. 10,557,474
Issue Date February 11, 2020
Title Rotary Machine And Method For The Heat Exchange In A Rotary Machine
Inventorship Benedikt Trottmann, St. Gallen (CH)
Marcelo Inforsati, Winterthur (CH)
Thomas Felix, Zumikon (CH)
Assignee SULZER MANAGEMENT AG, Winterthur (CH)

Claim of US Patent No. 10,557,474

1. A rotary machine for conveying a fluid, comprising:a drive unit configured to drive a shaft;
an impeller arranged at the shaft, and configured to convey the fluid;
at least one mechanical seal configured to seal the shaft;
a first and a second heat exchange system configured to cool or heat the mechanical seal, the first heat exchange system comprising an inlet and configured for direct application of a fluid heat carrier at the mechanical seal and the second heat exchange system comprising a heat exchange jacket capable of having a fluid heat carrier flow therethrough without direct contact with the mechanical seal and comprising a hollow space having an inlet and an outlet, the fluid heat carrier of the second heat exchange system of passing from the inlet of the hollow space to the outlet of the hollow space without being in fluid communication with the inlet of the first heat exchange system, and the inlet for the first heat exchange system being different from both the inlet and the outlet for the second heat exchange system, the second heat exchange system at least partially defining the flow path of the first heat exchange system, and the first and the second heat exchange systems forming a common heat exchange system in which a common fluid heat carrier comprising the fluid heat carrier of the first heat exchange system and the fluid heat carrier of the second heat exchange system is capable of being circulated; and
a fan wheel configured to circulate the common fluid heat carrier in the common heat exchange system.