A tower-type solar thermal power generation system to deal with cloud cover

A technology of tower-type solar energy and thermal power generation system, which is applied in the directions of solar thermal power generation, mechanical power generated by solar energy, machines/engines, etc. It can solve the problems of superheated steam energy storage effect and poor stability, steam turbine shutdown, etc., and achieve operating costs Low, stable output power and simple system control

Active Publication Date: 2016-08-17
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the sun is blocked by clouds, the mirror field cannot provide sufficient energy to generate superheated steam, which may cause the turbine to be forced to shut down
In addition, the energy storage effect and stability of superheated steam are poor

Method used

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  • A tower-type solar thermal power generation system to deal with cloud cover

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Embodiment 1

[0025] This embodiment provides a tower-type solar thermal power generation system, which includes a solar evaporation unit, a heat storage unit, a fuel superheating unit, a solar superheating unit, a power generation unit, a condensation unit, a cloud monitoring system, a first connection valve and a second connection valve;

[0026] Wherein, the solar evaporation unit is used to heat the liquid water flowing into it through solar heating to generate saturated steam and transport it to the thermal storage unit;

[0027] The thermal storage unit is respectively connected to the fuel superheating unit and the solar superheating unit, and the thermal storage unit passes the saturated steam into the fuel superheating unit or the solar superheating unit for overheating;

[0028] The fuel superheating unit generates superheated steam by heating the incoming saturated steam through fuel, and the solar superheating unit generates superheated steam by heating the incoming saturated st...

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Abstract

A tower-type solar thermal power generation system for cloud cover, which includes a solar evaporation unit, a thermal storage unit, a fuel superheating unit, a solar superheating unit, a power generation unit, a condensation unit, a cloud monitoring unit, a first connection valve and a second connection valve ; Wherein the thermal storage unit is connected with the solar superheating unit through the first connection valve, and the thermal storage unit is connected with the fuel superheating unit through the second connection valve; the cloud monitoring unit is used to receive the above heliostat mirror field cloud layer information, and control the opening and closing of the first connection valve and the second connection valve according to the cloud layer information. The invention ensures the non-stop operation of the steam turbine by controlling the first connection valve and the second connection valve, and avoids the load fluctuation of the power grid caused by the cloud cover above the mirror field. The invention provides a simple system, good safety, and power generation Low cost tower solar thermal power generation system.

Description

technical field [0001] The invention relates to the field of tower-type solar thermal power generation, in particular to a tower-type solar thermal power generation system for cloud cover. Background technique [0002] The development and utilization of solar energy has become a global key research project. Tower-type solar thermal power generation is a mode of solar thermal power generation. Its basic form is to use heliostats that independently track the sun to form a heliostat group, and reflect sunlight to a heat collector fixed on the top of the receiving tower to heat the working fluid. Generate superheated steam or high-temperature steam to drive a steam turbine to generate electricity. The working fluids used in tower solar thermal power generation include water (water vapor), molten salt, air, heat transfer oil, liquid metal, and other organic substances. Among them, the tower-type solar thermal power generation system using water (steam) as the heat-absorbing wor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03G6/00
CPCY02E10/46
Inventor 徐能易富兴付杰唐亚平周慧程实
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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