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Coal gas power generation system for steel mills

A power generation system and gas technology, which is applied in the direction of machines/engines, steam engine devices, mechanical equipment, etc., can solve the problems of low gas utilization efficiency, long construction period, and large engineering volume, so as to improve gas utilization efficiency and work ability , the effect of improving efficiency

Inactive Publication Date: 2017-01-11
CITIC HEAVY INDUSTRIES CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a system for generating electricity with steel plant gas in order to solve the existing problems of low gas utilization efficiency, long construction period and high engineering volume and high cost in the construction process

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  • Coal gas power generation system for steel mills

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Embodiment Construction

[0028] As shown in the figure, the specific implementation method is as follows:

[0029] A system for generating electricity with steel plant gas, including a turbogenerator set 2, a condenser 3, a condensate pump 4, a seal heater 5, a low-pressure heater 6, a deaerator 7, a feed water pump 8 and a primary The low-voltage power generation system composed of the high-pressure heater 9 and the sewage system mainly composed of the sewage expansion vessel 10 and the sewage heater 11 also include the gas boiler 1 and the high-voltage power generation system mainly composed of the back pressure turbine generator set 2A, the gas boiler The steam produced by 1 enters the back pressure turbo-generator unit 2A through pipelines for high-pressure power generation, part of the steam discharged from the back-pressure turbo-generator unit 2A enters the secondary high-pressure heater 9A to heat the boiler feed water, and the other part directly passes through the gas-fired boiler 1 After th...

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Abstract

A coal gas power generation system for steel mills comprises a low-voltage power generation system and a boiler blowdown system, wherein the low-voltage power generation system mainly consists of a turbo generator set, a condenser, a condensate pump, a steam seal heater, a low-pressure heater, a deaerator, a feed pump and a primary high-pressure heater; the boiler blowdown system mainly consists of a blowdown flash vessel and a sewage heater; and the coal gas power generation system further comprises a gas-fired boiler and a high-voltage power generation system, and the high-voltage power generation system mainly consists of a back-pressure turbo generator set. According to the coal gas power generation system, the ultrahigh-pressure gas-fired boiler is adopted to produce ultrahigh steam with higher quality, so that the power capability of steam is improved. According to the coal gas power generation system, as the turbo generator set adopts a back-pressure turbine of which the exhaust steam parameters meet the demands on reheating of the gas-fired boiler and the inlet steam parameters of an original medium-temperature medium-pressure steam turbine, and normal operation of an original medium-temperature medium-pressure turbo generator set is guaranteed without dismantlement.

Description

technical field [0001] The invention relates to the technical field of gas power generation, in particular to a system for generating power with steel plant gas. Background technique [0002] The low calorific value gas produced in industries such as iron and steel, silicomanganese, blue carbon, etc. is basically used in the self-owned power plants of enterprises for power generation, and the power of steam turbine generator sets is relatively small. In the past, due to the limitation of equipment manufacturing technology, most of them used medium temperature and medium pressure Steam parameters, low power generation efficiency, high self-consumption electricity rate, large circulating water consumption, and poor economic benefits of the enterprise. [0003] At present, with the advancement of technology and the improvement of equipment manufacturing technology, the manufacture of high-parameter and low-power turbo-generator sets is becoming more and more mature, and it is p...

Claims

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Application Information

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IPC IPC(8): F01K11/02F01K25/08
CPCF01K11/02F01K25/08
Inventor 彭岩刘怀亮仝伟峰时小宝王新建吴梦
Owner CITIC HEAVY INDUSTRIES CO LTD
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