Improved lime kiln exhaust gas waste heat power generation system and power generation method thereof

An improved waste heat power generation technology, which is applied in the steam generation method using heat carrier, waste heat treatment, steam superheating, etc., can solve the problems of poor utilization of energy, large heat transfer temperature difference, insufficient power generation, etc., to achieve The effect of reducing entropy production, increasing power generation, and increasing power generation
CN103353239AInactive Publication Date: 2013-10-16广州智光节能环保有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
广州智光节能环保有限公司
Publication Date
2013-10-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an improved lime kiln exhaust gas waste heat power generation system and a power generation system of the improved lime kiln exhaust gas waste heat power generation system. The power generation system comprises a chimney, exhaust gas valves, a waste heat boiler, a draught fan, a steam pocket, a steam turbine, a power generator, a condenser, a cooling tower, a condensate pump, an oxygen remover, a boiler water feeding pump, an oxygen removing water returning pipe and a redundant steam inlet pipe. A superheater, an evaporator and an economizer are sequentially arranged inside the waste heat boiler from top to bottom. The oxygen removing water returning pipe is connected with a water outlet of the boiler water feeding pump. The redundant steam inlet pipe is connected with a steam inlet of the superheater. According to the power generation method, redundant saturated steam in a steam pipe net is supplemented into the superheater inside the waste heat boiler through the redundant steam feeding pipe, the flow of superheated steam entering the steam turbine is increased, and the generated power amount is increased. According to the power generation method, a dual-pressure system can be further used, the heat transmission temperature difference is reduced, the entropy production is reduced, and the generated power amount is increased.
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Description

Technical field

[0001] The invention relates to a lime kiln waste heat power generation system and a power generation method thereof, in particular to an improved lime kiln waste heat power generation system and a power generation method thereof, belonging to the technical field of waste heat power generation. Background technique

[0002] The existing lime kiln waste heat power generation system has a structure like figure 1 As shown, it includes the chimney 1, the flue gas valve 2, the waste heat boiler 6, the induced draft fan 7, the steam drum 8, the steam turbine 9, the generator 10, the condenser 11, and the cooling tower 12. The waste heat boiler 6 is sequentially arranged from top to bottom. There are superheater 3, evaporator 4 and economizer 5.

[0003] The power generation principle of the above-mentioned lime kiln waste heat power generation system is: the inlet waste heat of the waste heat boiler 6 comes from the lime kiln preheater, the intake temperature is about 350...

Claims

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