Converter waste heat generating system

Abstract

The invention discloses a converter waste heat generating system, which comprises a waste heat boiler, a heat accumulator, a steam turbine unit, and a generator set. A steam outlet of the waste heat boiler is connected with a steam inlet of the heat accumulator. The converter waste heat generating system is characterized in that the converter waste heat generating system also comprises a heating furnace with a superheater, and a steam outlet of the heat accumulator is connected with a steam inlet of the steam turbine unit through the superheater. Due to voltage stabilization of the heat accumulator, the converter waste heat generating system converts intermittent and unstable steam generated by the waste heat boiler into continuous and stable steam, and guarantees the normal work of the steam turbine unit; and by heating moisture contained in saturated steam into vapor by the superheater, the vapor becomes dry steam. Therefore, the condensate water generated when the vapor works in the steam turbine unit is effectively reduced, and the normal work of the steam turbine unit is guaranteed. In addition, the steam specific enthalpy is increased, so that the generating efficiency is improved.

Description

technical field [0001] The invention relates to a steam turbine power generation system, in particular to a converter waste heat power generation system. Background technique [0002] Utilization of waste heat is an important direction for energy saving and consumption reduction. In the existing industrial production, a part of the steam turbine power generation system in waste heat power generation uses saturated steam as power generation power, that is, using (waste heat) boiler to generate saturated steam to generate electricity, effectively using waste heat resources . When generating electricity, the waste heat boiler produces saturated steam directly into the steam turbine unit to do work, but this method has the following disadvantages: [0003] 1. Saturated steam is wet steam with a high water content, and a lot of water is produced during the expansion process in the steam turbine. Therefore, it is necessary to consider the measures to carry water with the blades o...

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Problems solved by technology

[0003] 1. Saturated steam is wet steam with a high water content, and a lot of water is produced during the expansion process in the steam turbine. Therefore, it is necessary to consider the measures to carry water with the blades of the low-pressure stage of the steam turbine; due to the large amount of saturated steam generated during the work process Condensed water, when the steam turbine suddenly loses load, the condensed water accumulated on the surface of the rotor, the surface of the fixed part of the machine and the piping system, especially in the large-volume steam-water separation reheater, will flash into steam, causing the steam turbine to accelerate dangerously , affecting the normal operation of the steam turbine

[0004] 2. Due to the low specific enthalpy of saturated steam (especially low-pressure saturated steam), the steam consumption is large during power generation, and the power generation efficiency is low

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