PROCESS HEAT EXCHANGER OF NUCLEAR POWER PLANT Russian patent published in 2009 - IPC F28D7/02 

FIELD: heating.

SUBSTANCE: invention relates to energy industry and can be used in purge systems of the first and second circuits of a nuclear power plant. A heat exchanger comprises a vertical tube bundle, an upper support ring and a lower support ring inside a vertical case as well as a lower and an upper nipple of tube space heat carrier set on the case; the lower and upper tube bundle sections are connected to the respective supports and the latter are attached to the case. The lower and upper supports are made as vertical shells and attached to the case by the lower and upper end faces of the shells respectively, each nipple is set on the case opposite to the shell of the respective support and forms an annular chamber in respect to the case. Such design of the heat exchanger allows for moving the points of attaching the supports to the case away from the case welded seams joining the tube plates and the case for the required distance as well as reducing influence of the case seams on the supports to the allowable value.

EFFECT: reducing allowable influence of the case seams on the supports.

2 cl, 3 dwg