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A peak-shaving energy storage system for new energy solar power generation

An energy storage system and solar energy technology, applied in the field of new energy power generation, can solve the problems of equipment scrapping, salt cooling and solidification, etc., and achieve the effect of increasing the compression ratio

Active Publication Date: 2021-02-09
宁夏宝龙新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for non-northern regions, the light and heat conditions are also very sufficient, but there will be consecutive days of cloudy and rainy weather, and the unheated salt for many days will cool down and solidify, causing the entire equipment to be scrapped

Method used

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  • A peak-shaving energy storage system for new energy solar power generation
  • A peak-shaving energy storage system for new energy solar power generation
  • A peak-shaving energy storage system for new energy solar power generation

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Embodiment 1

[0043] Such as figure 1 As shown, the present invention is a peak-shaving energy storage system for new energy solar power generation, including a photothermal conversion device 1. After being heated, the photothermal conversion device 1 transmits steam to a program-controlled valve 2, and the program-controlled valve 2 transmits part of the steam to the steam turbine. Group 3 generates power, and the steam higher than the load demand is pressurized and stored in the pressure-resistant insulation warehouse 5;

[0044] When the input steam pressure of the steam turbine unit 3 is not enough to meet the load demand, the pressure-resistant heat preservation warehouse 5 delivers high-pressure steam to it.

Embodiment 2

[0046] Such as figure 1 As shown, a peak-shaving energy storage system for new energy solar power generation includes a photothermal conversion device 1. After being heated, the photothermal conversion device 1 transmits steam to a programmable valve 2. The programmable valve 2 includes three programmable switches 21, 22, twenty three;

[0047] The first programmable switch 21 communicates with the light-to-heat conversion device 1;

[0048] The second program-controlled switch 22 communicates with the steam turbine unit 3;

[0049] The third program-controlled switch 23 communicates with the pressurizer 4, and the pressurizer 4 stores the steam pressure into the pressure-resistant heat preservation bin 5;

[0050] Such as Figure 2-3 As shown, the compressor 4 includes a pressure-resistant tube 41 communicating with the third programmable switch 23. The pressure-resistant tube 41 is connected in parallel with a large pressure cylinder 42 and a small pressure cylinder 43 in...

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Abstract

The invention discloses a peak-shaving energy storage system for new energy solar power generation, which includes a light-to-heat conversion device. After being heated, the light-to-heat conversion device transmits steam to a program-controlled valve, and the program-controlled valve transmits part of the steam to a steam turbine unit for further processing. For power generation, the steam higher than the load requirement is pressurized and stored in the pressure-resistant heat preservation warehouse, and the pressure-resistant heat preservation chamber delivers high-pressure steam to it when the input steam pressure of the steam turbine unit is not enough to meet the load demand; Circulation pipes, the heat-carrying material in this system is steam, even if it is rainy for days without solar energy input, the temperature will become liquid water after the temperature drops, and will not block the heat circulation pipes; high-density energy storage, in this scheme, the steam is pressurized and stored in durable In the pressure and heat preservation chamber, changing the ratio of the large piston to the small piston can increase the compression ratio, and rely on the pressure of the steam itself to compress the steam, which can store energy at a high density.

Description

technical field [0001] The invention relates to the field of new energy power generation, in particular to a peak-shaving energy storage system for new energy solar power generation. Background technique [0002] Solar energy in new energy has been promoted due to its wide range of sources. In addition to the mainstream photovoltaic power generation, it can also rely on the photothermal effect to use the generated heat to generate electricity. [0003] At present, the molten salt cycle heat storage technology is put into use, using sunlight to heat molten salt, mostly a mixture of sodium chloride and potassium chloride, with a melting point of 625 degrees Celsius, heating molten salt during the day for power generation, and without sunlight at night, the stored high temperature Molten salt can also generate electricity, which is very suitable for areas in the north with less rain and more sunshine. [0004] However, for non-northern areas, the light and heat conditions are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24S60/00F03G6/00F01D15/10H02J3/28
CPCF01D15/10F03G6/00F24S60/00H02J3/28Y02E10/46Y02E70/30
Inventor 张天鹏
Owner 宁夏宝龙新能源科技有限公司