Trough solar medium and high temperature collectors

The trough solar high-temperature collector is a high-efficiency linear focusing solar collector device, which is mainly composed of a mirror, a high-temperature collector tube, a bracket system, a tracking system, a transmission system and a control system, which has the advantages of mature technology, stable structure and easy control. The mirror follows the rotation of sunlight and can directly convert solar energy into heat energy, which is widely used in solar thermal power generation, industrial steam, heating and cooling, seawater desalination, drying, coal-fired boiler replacement, oil exploitation, facility agriculture, agricultural and sideline products drying and other energy-saving fields.

Solar medium and high temperature collector tubes

The high-temperature collector tube is the core component of the trough solar collector, and our company provides the solar medium and high temperature collector which is composed of stainless steel, glass tube, and bellows Kovar components at both ends. The surface of the glass tube is coated with an anti-reflection layer to increase the transmission of sunlight. The vacuum between the glass and steel tubes is better than above the PA, reducing heat loss. The surface of the steel pipe is coated with a medium and high temperature solar selective absorption layer, which can convert the sunlight transmitted to the layer into heat energy and transmit it to the thermal conductive working fluid inside the steel pipe to achieve heat exchange. Through the characteristics of high absorption and low emission of the selective absorption layer, and the vacuum insulation characteristics of the vacuum interlayer, the good heat collection and heat exchange performance of the solar medium and high temperature collector tube is realized. Its technical highlights

1. Due to the use of metal tube as the flow channel of thermal conductive working fluid, the straight-through vacuum tube inevitably adopts glass-to-metal sealing technology. Glass-to-metal sealing technology requires that the thermal expansion coefficient of glass and metal is very similar, and the vacuum solar collector tube is made of high-expansion silica glass with low expansion coefficient. The solar medium and high temperature collector tube provided by our company innovatively adopts the fully automatic 5.0 glass-to-metal direct sealing process, which has unique technical characteristics.

2. Using its original vacuum sputtering coating, the performance parameters of solar absorption ratio and emission ratio of the film layer are further optimized.

3. The production plant has a high level of automation, low operating costs, and excellent product quality. Greatly improve production efficiency, product quality, and further reduce costs.