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Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method

A flue gas waste heat and waste heat recovery technology, applied in the field of metallurgy, to achieve good social and economic benefits, increase power generation, and reduce product costs

Inactive Publication Date: 2013-09-11
华效资源有限公司
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Problems solved by technology

[0003] The purpose of this invention is to propose a heating furnace flue gas, steam waste heat recovery power generation system and waste heat recovery power generation method, which can not only achieve the maximum recovery and utilization of heat, but also solve the problem of continuous and stable operation of the waste heat power generation system

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  • Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method
  • Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method
  • Heating furnace flue gas and steam waste heat recycling and power generating system and power generating method

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Embodiment Construction

[0053] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0054] The system of the present invention mainly includes flue gas waste heat boiler 1, superheater 2, evaporator 3, economizer 4, flue gas waste heat boiler steam drum 5, vaporization cooling steam drum 6, heating furnace water beam vaporization cooling circuit 7, vaporization cooling Forced circulation pump 8, steam turbine 9, generator 10, condenser 11, condensate pump 12, thermal deaerator 13, boiler feed water pump 14, combined control system 15, vaporization cooling drum feed water regulating valve 16, flue gas waste heat boiler Drum feedwater regulating valve 17, etc.

[0055] This system introduces the 400-500°C flue gas at the tail of the main exhaust flue of the heating furnace into the flue gas waste heat boiler 1, and the flue g...

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Abstract

The invention provides a heating furnace flue gas and steam waste heat recycling and power generating system and a power generating method. The system comprises a flue gas waste heat boiler system, a heating furnace vaporization cooling system, a turbine generator unit system, a condensation water return supply system and a combined control system. The flue gas waste heat boiler system comprises an economizer, an evaporator and a superheater. Water of the vaporization cooling system is supplied by the economizer of a heating furnace, and generated saturated steam enters the superheater of the heating furnace. According to operation characteristics of the heating furnace, the flue gas and vaporized cooling steam of the heating furnace are explored and used together, so that flue gas and steam combined evaporation waste heat power generation is achieved. Waste heat of the flue gas is used, the waste heat of the vaporized cooling saturated steam is also used, meanwhile stability of the system is well guaranteed, and waste heat utilization is achieved to the largest extent.

Description

technical field [0001] The invention relates to metallurgical technology, in particular to waste heat recovery and utilization technology of steel rolling heating furnace in iron and steel plant. Background technique [0002] Heating furnace is a large energy consumer in iron and steel enterprises, with high energy consumption and low energy utilization level. At present, many enterprises are carrying out technical transformation and upgrading of heating furnaces to achieve energy saving and emission reduction. The main method is to arrange a waste heat boiler in the tail flue of the heating furnace, and use the steam generated by the boiler to generate electricity. For example, the patent number ZL201010114344.7, titled "A Heating Furnace Waste Heat Power Generation System and Its Method", is an additional supplementary combustion waste heat boiler, with the supplementary combustion waste heat boiler as the main body of the system to ensure a certain amount of steam and ab...

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Application Information

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IPC IPC(8): F01K11/02F01K11/00F22B1/18
CPCY02P80/15
Inventor 隋元春姚源魏孟军袁志强樊晓芳赵磊
Owner 华效资源有限公司
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