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China's first "super mirror power station" to achieve full power generation

via:CnBeta     time:2019/6/18 0:02:09     readed:127

The Dunhuang 100 MW molten salt tower type photothermal power station has been hailed as a “super mirror power station”. It was independently developed by Beijing First Airlines Aiqiwei Energy Saving Technology Co., Ltd. and invested 3 billion yuan (RMB, the same below). , has completely independent intellectual property rights. The designed power generation capacity of the power station is 390 million kWh, which can reduce carbon dioxide emissions by 350,000 tons per year, releasing the environmental benefits equivalent to 10,000 mu of forest.

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On the 16th, Dunhuang ushered in a recent long-lost sunny day. The Dunhuang 100 MW CSP station was tested at full capacity with excellent weather. Under the control of the computer, the power station's more than 12,000 heliostats "collectively wake up", bringing together 10,000 beams of light to the top of the 260-meter-high heat-absorbing tower, making the 7.8-square-kilometer "Super Mirror Power Station" look like Silver sunflowers "blooming" on the Gobi continue to turn sunlight into clean electricity.

In the continuous verification process of nearly 20 hours, the best operation record shows that all the main indicators are better than the design value, and the subsystems such as concentrating, heat absorbing, heat storage, heat exchange and power generation are running normally and stably. This is another important milestone in the operation of the power station after the first 34 hours of continuous power generation in the spring conditions in mid-April.

The Dunhuang 100 MW molten salt tower type photothermal power station is one of the first solar thermal power demonstration power stations in China with an installed capacity of 100 MW and an 11-hour molten salt heat storage system with a mirror area of ​​1.4 million square meters. On December 28th, it was connected to the grid for power generation. It is currently the largest installed thermal power station in China and even in Asia. It is also the world's largest tower-type solar thermal power station with the largest single-concentration area and the highest endothermic tower.

Huang Wenbo, deputy commander of the first-class energy-saving Dunhuang 100 MW molten salt tower type photothermal power station, said that the first megawatt solar thermal demonstration power station in Dunhuang was connected to the grid at the end of last year. After winter, spring and summer operation. The power station has experienced the most difficult environmental challenges in China, indicating that the power station technology has been suitable for promotion in the Northwest region.

It is understood that Dunhuang's first energy-saving 100 MW national solar thermal demonstration power station has completed 24 hours of uninterrupted operation under various working conditions and realized full-load power generation, accumulating a strong technical reserve for enterprises to enter the domestic new energy market. It marks that China has become one of the few countries in the world to master the complete set of core technologies such as construction design, equipment manufacturing, commissioning and operation of large-scale molten salt towers.

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