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1. (WO2018099346) LOW CALORIFIC VALUE GAS POWER GENERATION METHOD AND SYSTEM

Pub. No.:    WO/2018/099346    International Application No.:    PCT/CN2017/113102
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Tue Nov 28 00:59:59 CET 2017
IPC: F22B 31/00
F27D 17/00
Applicants: WISDRI CITY ENVIRONMENT PROTECTION ENGINEERING CO., LTD
中冶南方都市环保工程技术股份有限公司
Inventors: LI, Shefeng
李社锋
AI, Qingwen
艾庆文
KANG, Meiqiang
康梅强
LIU, Zihao
刘子豪
Title: LOW CALORIFIC VALUE GAS POWER GENERATION METHOD AND SYSTEM
Abstract:
Provided are a low calorific value gas power generation method and system, comprising the following steps: 1. sending low calorific value gas to a boiler (1) for combustion, and the flue gas generated by the combustion is heat exchanged with the heat exchange surface in the boiler (1); superheated steam of high temperature and high pressure is generated in a superheater (13), and the superheated steam is sent to a high pressure cylinder (21) of a steam turbine (2) for power generation; 2. the steam from the high pressure cylinder (21) enters the reheater (14), and the reheated steam enters a low pressure cylinder (22) for power generation; 3. the steam from the low pressure cylinder (22) after being condensed enters an economizer (15), and the water from the economizer (15) enters a boiler drum (12); and 4. in the boiler drum (12), the water enters a water-cooled wall (17) of the boiler (1) and is heated to a steam-water mixture and returns to the boiler drum (12); and saturated steam enters the superheater (13).