HEAT-EXCHANGE ELEMENT AND PLATE HEAT EXCHANGER Russian patent published in 2008 - IPC F28D9/00 

FIELD: heat exchange, applicable for recuperation of heat of secondary power sources of production plants and power-generating plants.

SUBSTANCE: the ducts for supply and discharge of the working media in the heat-exchange element are made rectilinear, and the operating heat-transferring section of the duct represents a zigzag sequence of short ducts oriented to each other at an angles of 90 deg. with a cross-section in the form of an equilateral triangle, whose geometric parameters are determined from relation L/d_equiv=3.5, where L -the duct length; d_equiv=2/3h -the duct equivalent diameter; h -the height of the duct cross-section. The ducts for supply and discharge of the working media are rectangular in the cross-section with a cross-section area equal to the cross-section area of the heat-transferring duct. The plate heat exchanger has a body, heat insulation and coupling flanges with stoppers for separation of gas flows, it has a great number of the heat-exchange elements mentioned above.

EFFECT: intensified process of heat exchange.

3 cl, 6 dwg