A high-temperature reheat steam turbine extraction cooling system

The present invention discloses a cooling system for a high temperature extraction a reheat turbine thermodynamic system, the primary system comprising a reheat steam turbine in a high-pressure cylinder, reheater, pressure cylinder, low pressure cylinder, a generator, a heater and extraction duct , provided with one or more extraction port is connected to the extraction pipe on the high pressure cylinder, pressure cylinder, thermodynamic system is running, the high pressure exhaust steam is introduced to the cylinder reheater be heated up and then into the pressure cylinder high temperature drawn from the extraction port extraction extraction is piped to the heater for heating condensate and / or the feed water, at a reheat turbine thermodynamic system is further provided a cooling system, the cooling system comprising a desuperheater control valve and desuperheating water-based, via communication desuperheater desuperheater water piping system and the fluid temperature by desuperheater can be arranged such that the extraction temperature heat exchange occurs at the desuperheater Save heated and reduced again after the temperature of the incoming extraction pipeline, control valve provided in the piping system for regulating the temperature Save Save water flow.