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Device for achieving power station peak load regulation with molten salt heat storage and working method thereof

A molten salt and low-temperature molten salt technology, applied in steam engine installations, steam applications, machines/engines, etc., can solve problems such as uneconomical and inability to cope with power station systems, and achieve low cost, reduce the number of tanks, and have little impact Effect

Active Publication Date: 2017-10-13
HUADIAN ELECTRIC POWER SCI INST CO LTD
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AI Technical Summary

Problems solved by technology

However, it is uneconomical to directly convert clean electrical energy into thermal energy for storage, and the design cannot cope with power plant systems

Method used

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  • Device for achieving power station peak load regulation with molten salt heat storage and working method thereof
  • Device for achieving power station peak load regulation with molten salt heat storage and working method thereof
  • Device for achieving power station peak load regulation with molten salt heat storage and working method thereof

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0030] Example.

[0031] see Figure 1 to Figure 4 .

[0032] This embodiment provides a device for peak shaving of a power station using molten salt heat storage, including a molten salt heat storage and release system I, a steam generation system II, and a traditional power generation system III. The molten salt heat storage and release system I is connected to the steam generation system II, the steam generation system II is connected to the traditional power generation system III, and the molten salt heat storage and release system I is connected to the traditional power generation system III.

[0033] The molten salt heat storage and release system I includes a molten salt tank 1, a molten salt heat storage p...

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Abstract

The invention relates to a device for achieving power station peak load regulation with molten salt heat storage and a working method thereof, and belongs to the technical field of power station peak load regulation energy storage. The device comprises a molten slat heat storing and releasing system, a steam generation system and a traditional power generating system. The molten slat heat storing and releasing system is connected with the steam generation system and comprises a molten salt tank, a molten salt heat storage pump, a first molten salt valve, a molten salt heat releasing pump and a second molten salt valve. The steam generation system refers to a steam generator. The traditional power generating system comprises a boiler, a steam turbine, an electric generator, a condenser, a water feeding pump and the like. According to the device for achieving power station peak load regulation with molten salt heat storage and the working method thereof, high-temperature heat storage capacity of molten salt is utilized, heat energy of residue steam of a boiler is stored, the heat energy can be converted into high-temperature and high-pressure steam for power generation again when required and is adapted to the power station peak load regulation needs and particularly suitable for power station stable operation under the ultralow load condition; the device and the working method thereof have the advantages that the system is simple, peak load regulation is convenient and fast and economic efficiency is high; and the influence on an original system is small.

Description

technical field [0001] The invention belongs to the technical field of power station peak-shaving energy storage, and relates to a device and a working method for realizing peak-shaving of a power station by utilizing molten salt heat storage. Background technique [0002] The power industry is the foundation of the national economy. With the change of power demand and structure of power users in my country, the peak-to-valley difference between day and night gradually increases, and the peak-to-valley difference can reach 30%-40% of the peak load of power generation. under great pressure. During the operation of the unit, certain peak-shaving measures must be adopted to ensure the balance of power supply and consumption in the power system. The general peak-shaving methods include thermal power unit peak-shaving, gas-turbine unit peak-shaving and hydropower peak-shaving etc. Among them, when the thermal power unit is used for deep peak regulation, it is very easy to cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K17/06
CPCF01K17/06Y02E60/14
Inventor 李允超宋华伟马洪涛王宝玉
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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