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Method for modifying thermal power station by storing energy through fused salt and device of method

A thermal power station and molten salt technology, applied in the field of solar thermal power generation and energy storage, can solve the problems of urban heating pipe network that consume a lot of manpower, material and financial resources, achieve rational use of energy, solve environmental problems, and solve the problem of excessive steam transmission distance big effect

Inactive Publication Date: 2015-03-11
江苏太阳宝新能源有限公司
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Problems solved by technology

[0003] Therefore, the thermal power stations in the urban area and the suburbs are facing closure, and the newly built thermal power stations are far away from the urban area. It takes a lot of manpower, material and financial resources to lay the urban heating pipe network.

Method used

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  • Method for modifying thermal power station by storing energy through fused salt and device of method

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Embodiment Construction

[0016] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] like figure 1 Shown is the device used in the method of using molten salt energy storage for thermal power station transformation, including molten salt heat storage system and steam generation system. The molten salt heat storage system is composed of a high-temperature molten salt tank 1, a low-temperature molten salt tank 2, and an electrically heated molten salt tank (furnace) 3; the steam generation system is composed of a preheater 4 and a steam generator 5.

[0018] figure 1 Among them, the electric heating molten salt tank / furnace is set between the high and low temperature molten salt tanks to heat the low ...

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Abstract

The invention relates to a method for modifying a thermal power station by storing energy through fused salt and a device of the method. A fused salt heat storage system and a steam generation system are adopted instead of a coal-fired boiler of the conventional thermal power station; the fused salt is heated by using off-peak electricity to store heat; the stored heat is transformed into high-temperature and high-pressure steam; power is generated on a power consumption peak, or regional heating is performed by using an original pipeline. By adopting the method and the device, environmental problems caused by coal burning of the conventional thermal power station are solved fundamentally, the carbon emission is reduced, the problem of overlarge steam conveying distance during heating of a newly-built remote thermal power plant can be solved, and the investment cost is saved. Meanwhile, the off-peak electricity can be utilized effectively, and reasonable utilization of energy is realized.

Description

technical field [0001] The invention relates to the technical field of solar photothermal power generation energy storage, in particular to a method and a device for transforming a thermal power station by utilizing molten salt energy storage. Background technique [0002] Traditional thermal power plants generate electricity by burning coal, oil, and natural gas. The flue gas from fossil fuel combustion will be emitted to the atmosphere, and its main components are carbon dioxide, water vapor, and other components such as nitrogen, nitrogen oxides, and sulfur dioxide. etc. If it is a coal power plant, there will be fly ash, mercury, etc., and the residue after coal combustion must also be discharged from the boiler, causing many environmental problems. [0003] Therefore, the thermal power stations in the urban area and the suburbs are facing closure, and the newly built thermal power stations are far away from the urban area. It takes a lot of manpower, material and financ...

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Application Information

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IPC IPC(8): F22B33/18F22B1/06F22D1/00
CPCY02P80/15
Inventor 李华刘荷芳郭晓明刘平心殷建平
Owner 江苏太阳宝新能源有限公司
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