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A high-efficiency protective cover for a tower-type solar heat absorber

A technology for solar heat absorbers and protective covers, which is applied in solar thermal power generation, solar thermal devices, heating devices, etc., and can solve problems such as heat absorber blasting, water working fluid in heat absorbers drying up, safety accidents, etc., to achieve Improve working life, prevent solidification of working fluid, and avoid safety accidents

Active Publication Date: 2016-03-30
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the heat absorber is one of the key technologies of tower solar thermal power generation. The entire heliostat field is composed of tens of thousands of heliostats, and all the heliostats reflect sunlight to the heat absorber. The heat on the heater is particularly large. If there is a sudden power failure in the heliostat field, the heliostat cannot rotate because the sun is moving at this time, so that the light spot that was originally focused on the heat sink will slowly move out of the heat sink. The energy passing through is extremely high, which can easily cause the water working medium in the heat absorber to dry up, causing the heat absorber to explode and cause a safety accident

Method used

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  • A high-efficiency protective cover for a tower-type solar heat absorber
  • A high-efficiency protective cover for a tower-type solar heat absorber

Examples

Experimental program
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Effect test

Embodiment 1

[0037] refer to figure 1 , In this embodiment, the high-efficiency protective cover of the tower solar heat absorber adopts a rolling shutter type, which includes a cloud monitoring system 6 , a rolling shutter type protective cover 3 and a protective cover control device 2 . Specifically, the top of the heat absorber 4 is provided with a rolling shutter type protective cover storage room 1, and the rolling type protective cover 3 is arranged in the rolling type protective cover storage room 1, and is arranged along a circle of the top part of the heat absorber 4 The protective cover control device 2 controls one end of the rolling shutter type protective cover 3 to stretch out or retract the rolling shutter type protective cover storage room 1, after the protective cover control device 2 stretches out the rolling shutter type protective cover storage room 1, from top to bottom Cover the outside of heat absorber 4 a week down. In this embodiment, a protective cover fixing dev...

Embodiment 2

[0046] refer to figure 2 , In this embodiment, the high-efficiency protective cover of the tower solar heat absorber adopts a guide rail type, which includes a cloud monitoring system 6 , a guide rail type protective cover 7 and a protective cover control device 2 . Concretely, a guide rail type protective cover storage room 9 is arranged on the vertical direction outside the heat absorber 4, and the guide rail type protective cover 7 is arranged in the storage guide rail type protective cover 7; Protective cover track 8 is arranged, is used for rail type protective cover 7 to slide on track and realize its opening and closing.

[0047] In this embodiment, the cloud monitoring system 6 is used to monitor the cloud cover information above the heliostat field, and transmit the cloud cover information to the protective cover control device 2; the protective cover control device 2 controls the guide rail type protection according to the cloud cover information. The cover 7 cover...

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PUM

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Abstract

The invention provides an efficient protective cover for a tower-type solar heat absorber. The efficient protective cover comprises a protective cover body, a protective cover body control device and a cloud layer detection system. The cloud layer detection system is used for monitoring cloud layer shielding information above a heliostat field and transmitting the cloud layer shielding information to the protective cover body control device. The protective cover body control device controls the protective cover body to shield or not to shield a heat absorber according to the cloud layer shielding information. According to the efficient protective cover for the tower-type solar heat absorber, when the heat absorber is shielded by dark clouds or cloud layer shielding occurs above the heliostat field in the operation process of a system, heat dissipation loss can be reduced, and operating efficiency of the heat absorber is improved; meanwhile, heat dissipation loss can be reduced, so that a working medium is prevented from solidifying, and the safety of the heat absorber in operation is improved. According to the efficient protective cover, when the heliostat field has an outage, the walking medium, namely water, is prevented from boiling away, so that it is avoided that the heat absorber explodes and causes safety accidents. According to the efficient protective cover, the service life of the heat absorber can be prolonged, and the heat absorber is safe, reliable, simple and easy to operate.

Description

technical field [0001] The invention relates to the technical field of tower-type solar power generation, in particular to a high-efficiency protective cover for a tower-type solar heat absorber. Background technique [0002] As a clean and renewable energy, solar energy has been applied more and more, especially photothermal power generation technology is an emerging solar energy utilization technology after photovoltaic power generation technology. Among several photothermal power generation technologies, tower-type solar thermal power generation uses a large number of heliostats to gather sunlight to the heat absorber installed on the top of the heat-absorbing tower, heats the working medium, generates steam, and drives the steam turbine to drive the generator. generate electricity. Among them, the heat absorber is one of the key technologies of tower solar thermal power generation. The entire heliostat field is composed of tens of thousands of heliostats, and all the he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/46
CPCY02E10/40
Inventor 唐亚平周楷余志勇易富兴周慧李心钟国庆田军
Owner ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD