SYSTEM OF REGENERATIVE HEATING OF WATER IN STEAM-TURBINE PLANTS (VERSIONS) Russian patent published in 2007 - IPC F01K19/04 

FIELD: power engineering.

SUBSTANCE: invention can be used in heat exchange devices of regenerative systems designed for water heating owing to condensing of steam on pipes of heat exchange surfaces. Vertical partition in form of cup enclosing pipes of heat exchange surfaces is installed in heaters over pipe plate. Outer size of cup is smaller than outer size of partitions of pipe system. Said vertical partition forms, together with housing, outer and inner condensate collectors, ejector is installed on condensate drain pipes from heaters with larger pressure into heaters with smaller steam pressure in housing after regulating valve, and inner condensate collector of heater last in direction of heated water flow is connected by pipeline with fitted on regulating valve or limiting plate with smaller pressure steam heater in housing. System of regenerative water heating of steam-turbine plants, design version 2, includes heaters installed successively in direction of heated water flow with steam inlet, condensate inlet and outlet branch pipes, and pipe system with horizontal partitions with lower arrangement of distributing water chamber with heated water inlet and outlet branch pipes, pipe plate, and housing of heaters are connected between pipelines with regulating heaters with higher pressure of steam in housing into heaters with smaller pressure of steam in housing, and inner condensate collectors of heaters with higher pressure of steam in housing are connected by pipelines, with fitted on regulating valves or limiting plate, with adjacent housings of heaters with lower steam pressure in housing.

EFFECT: increased economy of heat exchanger owing to prevention of flooding of heat exchange surface arranged directly over pipe plate by steam condensate.

3 cl, 2 dwg