A power generation system coupled with a coal-fired unit and a SOFC and its operation method
A technology for coal-fired generating units and power generation systems, which is applied in the steam generation method, combustion method, separation method and other directions using pressure combustion, can solve the problems of the maximum variable load rate limit, the complex and huge thermal system of coal-fired power generation, etc., and achieves energy conversion. The effect of high efficiency, improved operational flexibility, and increased peak shaving capacity
Active Publication Date: 2022-08-05
XI AN JIAOTONG UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The thermal system of coal-fired power generation is complex and huge, and the unit is affected by its thermal inertia during the load-changing transient process, and the maximum load-changing rate is limited
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] The specific steps of a power generation system coupled with a coal-fired unit and SOFC and its operation method are as follows:
[0026] By coupling the solid oxide fuel cell / electrolyte device, the present invention further expands the stable operation load range of the coal-fired unit, further improves the rapid load change capability of the power generation system, and finally improves the operation flexibility of the coal-fired power generation system.
[0027] The technical scheme adopted by the present invention to solve the technical problem is:
[0028] A power generation system coupling a coal-fired unit and an SOFC and an operation method thereof are to combine a supercritical coal-fired unit with a solid oxide fuel cell / electrolyzer device to achieve complementary advantages.
[0029] 1) The hydrogen supplied by the SOFC stack 71 comes...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a power generation system coupled with a coal-fired generating set and SOFC and an operation method thereof. The invention couples a traditional coal-fired generating set with a power generation / electrolysis device composed of SOFC as the core, and establishes an efficient and flexible power generation system. Power system. In order to fully absorb the time-varying and unpredictable renewable energy power generation, the power grid has put forward higher requirements for the peak shaving capacity of coal-fired power plants. However, when the coal-fired unit operates at a low load, problems such as unstable combustion will occur in the boiler; at the same time, the variable load rate of the unit in the process of peak regulation is limited by its thermal inertia. In order to solve the above-mentioned series of problems of coal-fired units, the present invention proposes a high-efficiency and flexible power generation system that couples coal-fired units with solid oxide fuel cells and other devices, which further expands the stable operating load range of the units and improves the performance of Quickly change the load rate, thereby improving the operating flexibility of the unit.
Description
technical field [0001] The invention belongs to the field of flexibility improvement of coal-fired power plants, and in particular relates to a power generation system coupled with a coal-fired unit and an SOFC and an operation method thereof, which can further reduce the minimum stable combustion load of the coal-fired unit and improve the rapid load change capability of the coal-fired unit. The flexible operation capability of the unit has been improved, which can be adopted and used in deep peak-shaving power plants, and can also provide reference for power plants operating at ultra-low load for a long time. Background technique [0002] In recent years, my country's coal-fired power plants have frequently participated in the task of peak regulation and load change. With the further expansion of the installed capacity and power generation scale of renewable energy power generation, the power grid has higher requirements for the peak regulation capacity of coal-fired power ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F22B1/22F22D1/50F23L7/00F23L15/00F23N3/00H01M8/12F01D15/10F01K11/02
CPCF22B1/22F22D1/50F23L7/007F23L15/00F23N3/007F01K11/02F01D15/10H01M8/12Y02E20/34
Inventor 王朝阳刘明严俊杰
Owner XI AN JIAOTONG UNIV