Title:
FUEL GAS INLET ADJUSTING SYSTEM AND METHOD FOR GAS TURBINE WITH CO-COMBUSTION GAS INJECTION AND HEAT VALUE ADJUSTMENT FUNCTIONS
Document Type and Number:
WIPO Patent Application WO/2021/103935
Kind Code:
A1
Abstract:
Provided is a fuel gas inlet adjusting system for a gas turbine with co-combustion gas injection and heat value adjustment functions, the system comprising a natural gas injection pipeline (1), a main synthetic gas main pipeline (2) and a steam injection pipeline (4), wherein the natural gas injection pipeline, a synthetic gas heater (15), a main synthetic gas reflux valve (21), a de Laval nozzle (22), a synthetic gas relief pipeline (26), a main synthetic gas regulation valve (24) and a burner (25) are sequentially arranged on the main synthetic gas main pipeline from the upstream to the downstream thereof; an outlet of the steam injection pipeline is divided into two branches, wherein one branch is connected to a steam inlet of the synthetic gas heater, and the other branch is connected to a steam inlet of the de Laval nozzle; and in addition, the natural gas injection pipeline, the synthetic gas relief pipeline and the steam injection pipeline are each provided with a flow control device used for achieving flow control. This solution overcomes the defect of conventional IGCCs, where due to the slow regulation rate of the gas production of a gasification furnace, it is difficult for the overall power generation load change rate of a power plant to satisfy the requirements of flexible peak regulation, and during large-scale grid connection of unstable renewable energy sources such as wind power, conventional IGCCs cannot satisfy the process requirements thereof.
Inventors:
CHEN XINMING (CN)
ZHANG BO (CN)
SHI SHAOPING (CN)
YAN SHU (CN)
MU YANFEI (CN)
GUO YUTONG (CN)
ZENG CHONGJI (CN)
ZHANG BO (CN)
SHI SHAOPING (CN)
YAN SHU (CN)
MU YANFEI (CN)
GUO YUTONG (CN)
ZENG CHONGJI (CN)
Application Number:
PCT/CN2020/125516
Publication Date:
June 03, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
CHINA HUANENG GROUP CO LTD (CN)
HUANENG CLEAN ENERGY RES INST (CN)
HUANENG CLEAN ENERGY RES INST (CN)
International Classes:
F02C3/30; F02C3/22; F02C7/22
Foreign References:
| CN110700945A | 2020-01-17 | |||
| CN211038839U | 2020-07-17 | |||
| CN1551946A | 2004-12-01 | |||
| CN101993730A | 2011-03-30 | |||
| CN109251769A | 2019-01-22 | |||
| US5724805A | 1998-03-10 | |||
| US20130255272A1 | 2013-10-03 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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