The invention discloses a photovoltaic power station cleaning robot achieving direct dust removal on the basis of a draught fan and a working method of the photovoltaic power station cleaning robot. The cleaning robot comprises a power system, a walking system, a cleaning system, a dust removing system and a control system; the power system is connected with the walking system, the cleaning system, the dust removing system and the control system separately, the walking system, the cleaning system and the dust removing system are connected to the control system through sensors respectively, and the centrifugal draught fan is adopted as the dust removing system. The robot works along the working path that the robot starts from the highest position of a solar panel, walks at equal altitude in the transverse linear direction of the solar panel, turns when the robot arrives at the edge of a solar panel array and then walks in the transverse linear direction of the solar panel again and works. The dust removing system discharges dust out of the robot through an output air duct in the longitudinal direction of the solar panel and always blows the dust to the low-terrain side of the solar panel. The cleaning robot can meet the requirement that a photovoltaic power station conducts quick and efficient cleaning work on a large-area solar panel.

Photovoltaic power station cleaning robot achieving direct dust removal on basis of draught fan and working method of photovoltaic power station cleaning robot

A solar concentrator assembly is disclosed. The solar concentrator assembly comprises a first reflective member, a second reflective member, a photovoltaic receiver comprising at least one photovoltaic solar cell unit, and a support structure coupled to the first and second reflective members and the photovoltaic receiver. The first reflective member is shaped to concentrate sunlight in front of the first reflective member, and has an edge region extending inward from an edge adjacent the second reflective member. The edge region is formed in a shape which curves away from the photovoltaic receiver near the first edge.

Reflector system for concentrating solar systems

The invention discloses a solar selective absorbing coating as well as a preparation method and application thereof The solar selective absorbing coating sequentially comprises a substrate layer, a TiAlN film absorbing layer and a SiO2 film antireflection layer from bottom to top; preferably, the TiAlN film absorbing layer is formed on a substrate by adopting a reaction magnetron sputtering method; and the SiO2 film antireflection layer is formed on the absorbing layer by adopting the reaction magnetron sputtering method The preparation technology disclosed by the invention is clean, simple and easy to control; and the prepared coating has high yield within the solar spectral range and low emissivity in an intermediate far infrared area In addition, the solar selective absorbing coating has medium-high temperature stability, can be applied to the fields of a vacuum or non-vacuum flat plate heat collector, a building integrated heat collector and the like, and meets the use demand of a solar thermal collector at the medium-high temperature

Solar selective absorbing coating as well as preparation method and application thereof

The invention discloses an organic light emission diode (OLED) and a preparation method thereof. The organic light emission diode consists of a transparent substrate layer, an anode layer, an organic functional layer, a cathode layer, an organic barrier layer and an inorganic barrier layer, wherein the transparent substrate layer, the anode layer, the organic functional layer, and the cathode layer are successively laminated and combined and the organic barrier layer and the inorganic barrier layer are successively and alternately laminated at the outer surface of the cathode layer. Materials used by the organic barrier layer include an organic material and a metal phthalocyanine compound, wherein the components are doped mutually; and the metal phthalocyanine compound accounts for 40% to 60%, by mole, of the organic barrier layer materials. According to the invention, because the organic barrier layer and the inorganic barrier layer are successively and alternately laminated and combined at the outer surface of the cathode layer, corrosion of active materials like water and oxygen and the like on the organic light emission diode can be effectively reduced and the organic functional material and the electrode of the OLED can be effectively protected, thereby obviously improving the stable performance of the OLED and prolonging the service life of the OLED. Besides, the preparation method has advantages of simple process, easily-controlled condition, and easily-large area preparation.

Organic light emission diode and preparation method thereof

The invention discloses a medium-high-temperature through type metal solar collector tube which comprises a metal parent tube, the outer surface of the metal parent tube is covered with an anti-corrosion coating and an absorption coating in sequence from inside to outside, wherein the anti-corrosion coating is a high phosphorous chemical nickel-plated coating, the thickness of the high phosphorous chemical nickel-plated coating is 10 to 20 Mum, and the absorption coating comprises a metal infrared reflecting sub-coating, a metal ceramic medium-high-temperature heat absorbing sub-coating and areflection reducing sub-coating in sequence from inside to outside The medium-high-temperature through type metal solar collector tube disclosed by the invention solves the problems of corrosion of materials at a medium-high temperature of 200 to 500 DEG C, and heat resistance and oxidation resistance of the heat absorbing coating, realizes corrosion, heat and high pressure resistance, and has low cost, a simple preparation process and high practicality

Medium-high-temperature through type metal solar collector tube

Reflector adjusting device

The utility model discloses an integrated solar thermal power generating system. Characteristics of various solar thermal power generating technologies are utilized, features of water and steams are combined, a solar energy slot type or a linear fresnel technology is utilized at the medium and low temperature, economical and stable performances of the technology are improved, a tower type or a dish type or a fresnel solar thermal power generating technology is utilized at the high temperature superheating section, by means of a feature of high condensation ratio of these types of the technologies, the steam pressure and temperature are improved, characteristics that the system tracking accuracy requirement is small at the medium and low temperature and the system heat loss is low at the high temperature are exerted, simultaneously performances of heat storage and steam reheating of the slot type solar thermal power generation are achieved, and also the high temperature and high pressure steam characteristics of the tower type or the fresnel or the dish type thermal power generation are achieved, the generating cost is reduced, the operation reliability is improved, and thereby the generating efficiency of the whole solar thermal power generating set is improved.

Integrated solar thermal power generating system

The invention relates to a large-sized integrated utilization system for a photo-thermal power generating station and a photovoltaic power generating station, which comprises a solar photo-thermal power generating unit and a photovoltaic power generating unit. A solar heat power generating mirror field in the solar photo-thermal power generating unit is connected with a heat collecting system; the heat collecting system is connected with a steam turbine; a generator is driven by the steam turbine to generate power; the generator is connected with an alternating-current power grid; a photovoltaic battery array in the photovoltaic power generating unit is connected with a direct-current distributor; the output of the direct-current distributor is divided into two parts; one of the two parts is connected with a heat accumulation system of the photo-thermal power generating station, or a steam generating direct-current electric furnace or a direct-current electric pump; and the other part enters the alternating-current power grid through an inverter after being reactively compensated. According to the large-sized integrated utilization system for the photo-thermal power generating station and the photovoltaic power generating station, a solar photo-thermal power generating mode and a photovoltaic power generating mode are combined with each other, and the advantages are complemented with each other, thereby, solar resources are more effectively utilized.

Large-sized integrated utilization system for photo-thermal power generating station and photovoltaic power generating station

A plane or micro-arc-shaped solar energy reflection mirror surface cleaning device comprises a horizontal frame which is supported by a plurality of support columns and provided with a walking device. A water tank is arranged at the upper portion of the horizontal frame. A cleaning head is arranged below the horizontal frame. A nozzle group is arranged at the lower portion of the water tank. The walking device is arranged on a walking route. The cleaning head is arranged at the back of the nozzle group. The walking device comprises a plurality of parallel wheel shafts which are arranged below the horizontal frame. Walking wheels are arranged at two ends of each wheel shaft. A front driving motor and a rear driving motor are respectively arranged on two wheel shafts which are arranged at the outermost side. The front driving motor and the rear driving motor provide driving force for the walking device. Caterpillar tracks are arranged outside the walking wheels to from a caterpillar track wheel set so that the plane or micro-arc-shaped solar energy reflection mirror surface cleaning device conveniently moves between adjacent mirror surfaces. The plane or micro-arc-shaped solar energy reflection mirror surface cleaning device has the advantages of being compact in structure, practical in functions, capable of cleaning the solar energy reflection mirror surface through water ejected by nozzles and a cleaning brush, automatic, high in effective and energy-saving.

Plane or micro-arc-shaped solar energy reflection mirror surface cleaning device

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