Thermal power generation system and method with fused salt energy storage, power supply and heat supply functions

A technology for thermal power generating units and molten salt, which is applied in the steam generation method using heat carrier, heat storage equipment, indirect heat exchanger, etc., can solve the problems of low utilization rate of power equipment assets, and reduce failure risks and maintenance costs , good engineering feasibility, the effect of solving the low utilization rate of power equipment

Inactive Publication Date: 2016-02-24
SHANGHAI YUANMENG ELECTRIC POWER ENERGY TECH CONSULTING CENT
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a thermal power generation system and method with molten salt energy storage for power supply and heat supply, which can not only solve the problem of power grid peak regulation and low utilization rate of power equipment assets, but also realize reliable and efficient generate electricity

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  • Thermal power generation system and method with fused salt energy storage, power supply and heat supply functions

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Embodiment Construction

[0030] The thermal power generation system with molten salt energy storage for power supply and heat supply of the present invention is as figure 1 As shown, it mainly includes the thermal power generation subsystem (see figure 1 left dotted line box) and molten salt energy storage and power generation sub-system (see figure 1 The dotted line box on the right), and the heat is transferred between the two subsystems by the intermediate circulating working medium (the working medium can be water, or fluid such as heat transfer oil).

[0031] Specifically, the thermal power generation subsystem includes a thermal power generating set, which can adopt figure 1 The widely used coal-fired generating sets in my country shown in , of course, other thermal generating sets that burn liquid or gaseous fuels can also be used. Taking a coal-fired power generation unit as an example, it mainly includes a boiler, a first generator 1, a first steam turbine unit 2, a pulverizing system, a bu...

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Abstract

The invention discloses a thermal power generation system and method with fused salt energy storage, power supply and heat supply functions. By arranging a bypass steam pipeline, a high-pressure condenser and a molten salt heater, excess steam heat energy generated by the load change of a power grid can be stored though molten salt. When the peak load of the power grid is reached, a molten salt energy storage power generation subsystem can participate in peak regulation of power supply of the power grid. In this way, the problems of peak regulation of the power grid, low utilization rate of power equipment and the like are solved, it is guaranteed that the power generation efficiency of the power generation system is equal to that of an existing thermal power generating unit, and the thermal power generation system and method have the outstanding advantages that energy storage and variable-load power supply are achieved, and high-efficiency power generation is guaranteed.

Description

technical field [0001] The invention belongs to thermal power generation technology, in particular to a thermal power generation system and method with molten salt energy storage for power supply and heat supply. Background technique [0002] With the improvement of people's living standards and the rapid growth of power load, the peak-to-valley difference in power grid load is increasing. The power supply and power transmission and distribution equipment in the power system are planned and constructed according to the peak load of the power grid, but the duration of the peak load of the power grid is short, resulting in a low utilization rate of power equipment assets planned and constructed to meet the peak load demand. In addition, my country's power supply structure is dominated by thermal power, and coal-fired power generation accounts for about 75% of the total power generation. A large number of thermal power units are in shutdown or low-load operation during off-peak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K13/00F01K11/02F28D20/00F22B1/06
CPCF01K11/02F01K13/00F22B1/06F28D20/00Y02E60/14
Inventor 施大钟马有福施登宇
Owner SHANGHAI YUANMENG ELECTRIC POWER ENERGY TECH CONSULTING CENT
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