Heat exchanger for high-temperature gases
AssigneeGHT, Gesellschaft fur Hochtemperaturreaktor-Technik mbH
InventorsWolfgang Maus, Wolfgang Niemeyer, Helmut Swars
Life of this patent
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Abstract
A U-tube heat exchanger for the heat transfer from a primary gas circuit to a secondary gas circuit in a high temperature reactor. At the high temperatures of approximately 950.degree. C., the additionally permissible stresses on the used materials are low. The cold gas collector is therefore flexibly attached at the housing. The arrangement permits complete and also remote-controlled testing from the secondary gas-side of all parts of the primary gas circuit which are stressed by pressure. The flexible elements are neither stressed by the weight of the heat exchanger nor endangered by high temperatures.
Claims11
Heat exchanger for high temperature gases, particularly for the heat transfer from a primary gas circuit to a secondary gas circuit in a high temperature nuclear reactor, with the secondary gas flowing counter-current to the primary gas, comprising a heat exchanger housing, a plurality of U-tubes with vertical legs connected in parallel through which the secondary gas flows, contained in the housing, passageways adjacent the legs of the U-tubes for the counter-current flow of primary gas, an inlet and an outlet in the housing for the introductions and discharge of primary gas into and out of the passageways, a hot gas collector into which hot secondary gas from the hot end of the U-tubes discharges, a cold gas collector from which the colder secondary gas enters the U-tubes, said U-tubes at their hot ends being fastened to said hot gas collector, said hot gas collector being fixedly connected in a longitudinal direction at the housing, and said cold gas collector being flexibly fastened at the housing.
Dependencies are inferred from the claim text.