DEVICE FOR HEATING OF FEED WATER WITH SECONDARY STEAM Russian patent published in 2019 - IPC F04F5/54 

FIELD: heat power engineering.

SUBSTANCE: technical result is achieved by device for heating feed water with secondary steam, which includes secondary steam pipeline, connected to nozzle of steam jet ejector, receiving chamber of which is connected to pipeline of feed water, diffuser – with a hydrocyclone, which consists of a cylindrical housing, equipped with an inlet tangential branch pipe located at the top of the housing, a slurry nozzle located from below the housing, connected to a conical bottom, equipped with a lower outlet pipe, inside the housing there is a central pipe connected to the upper outlet pipe, at the bottom of the housing, inside it, an annular pocket is formed coaxially, formed by a cylindrical ring, communicating from above with the periphery of the housing cavity, connected to the slurry branch pipe, wherein the hydrocyclone tangential branch pipe is connected through a pipeline to the ejector diffuser, the lower outlet branch pipe is connected to the feed pump and the boiler economiser.

EFFECT: invention can be used at thermal power plants during operation of heat-recovery turbines for recycling of secondary steam downstream the turbine.

1 cl, 2 dwg