HEAT EXCHANGER Russian patent published in 2010 - IPC F28D7/10 

FIELD: heating systems.

SUBSTANCE: invention refers to heat engineering and can be used as high heat-stressed submersible heat exchanger of tube-in-tube type. In heat exchanger, mainly submersible one of tube-in-tube type, containing external tube fixed with one of its ends in tube sheet and plugged on its other end, internal tube fixed in the other tube sheet and facing with its open end the bottom zone of external tube, internal tube is located with a gap throughout the length in casing with possibility of being moved, beyond external tube, along the surface of internal tube; at that, edge of casing facing the bottom zone of external tube is rigidly attached to edge of internal tube.

EFFECT: design of proposed heat exchanger will allow using it as module of steam-generating plant of submersible type, which meets the requirements for reliability, manufacturability, erection at high specific heat stresses of the occupied volume of nuclear power plant.

1 dwg