摘要:
The invention relates to a vehicle and method for cleaning parabolic trough solar collectors (2), comprising: a motorised vehicle (1) including a water tank (4); front (5) and rear (6) cleaning arms, each with a telescopic part (7) having a plurality of sections, one end of said telescopic part being coupled to a pivot head (8) supporting a rotary cleaning brush (9) and including spraying nozzles (10); and proximity sensors (12) for the brushes (9). The vehicle includes front and rear transverse guide rails (13) which include a linear movement means (14) coupled, by means of a pivot (15), to the cleaning arms (5, 6). The brushes (9) can move relation to the head (8) by means of a shaft (21) actuated by a retraction actuator (27) in order to avoid obstacles (26).
摘要:
Superheated steam tower receiver with a well-defined configuration that benefits the transfer of heat between the surface of the component and the working fluid. Composed of at least four subpanels that define the circulation circuit for the steam by means of internal passages. The component is provided with saturated steam and for the production of said steam it is possible to use other solar concentrator technology. The proposed configuration minimizes the technological risks inherent in superheated steam receiver technology where drawbacks arise in the structure of the material owing to the thermal cycles to which the solar component is subjected.
摘要:
Magnetic tape (1) device (4) for magnetic encoder and manufacturing and installation procedures for this device (4). The magnetic tape (1) has a magnetized surface and a non-magnetized surface in the device (4), and comprises a clasp (2) with fastening means (3) on the inner surface of which the magnetic tape (1) is stuck by its magnetized surface. The invention also comprises a manufacturing procedure for this device (4) and an installation procedure for this device (4) on an axis (5) of rotation.
摘要:
Selective solar absorbent coating and manufacturing method, with solar absorption and low emissivity properties. The coating comprises a substrate (1) of metal, dielectric or ceramic material, at least one highly reflective metal layer (2) in mid-far infrared applied to the substrate itself which provides low emissivity properties, a multi-layer structure of alternating dielectric and metallic layers (3) of subnanometric thickness applied to the reflective metal layer and at least one dielectric layer (4) that acts as an anti-reflective layer for the solar spectrum. The coating is applicable as a selective absorbent coating in absorbent tubes for parabolic-trough solar collectors, in solar panels for hot water, heating or domestic cooling, both in the form of absorbent tubes and absorbent sheets, in capture systems in tower solar thermoelectric power plants, and in capture systems in Stirling disk systems.
摘要:
System for supporting an evaporable getter, which can be installed in any type of solar power receiving tube and which is mounted using a method that is much more automated than that used until now. Unlike the known prior art, this system consists of a clip-type supporting element having a substantially thin profile and an S-shaped base, the upper part thereof including a ring in which the pellet of evaporable getter is housed. Said pellet is supported by the pins of the supporting element, dispensing with the need for an additional contact part in order to secure the pellet. The clip is secured to the bellows-type expansion compensator, such that it remains inside the vacuum zone of the solar power receiving tube.
摘要:
Method for obtaining solid samples or suspensions of graphene optionally doped with heteroatoms from synthetic or natural polymers, which are subjected to pyrolysis in a furnace without oxygen at temperatures of between 400°C and 1,200°C and subsequently to a liquid-phase exfoliation phase. The polymers used are preferably polysaccharides, such as chitosan, alginate and alginic acid, which can be optionally doped with any heteroatom. The invention is intended primarily for use in microelectronics and photovoltaic devices in which graphene sheets are very useful. In addition, the graphene prepared cn be uses as an additive for polymers and ceramic materials.
摘要:
Mixed heliostat field combining, in the same field, heliostats of different sizes and/or with different types of facets, all of them having at least one facet and being canted or not, and either having spherical, cylindrical, flat or quasi-flat (spherical with a high curvature radius) facets, such that the solar field is optimised in order to minimise shadows and blockages between heliostats, as a result of correct positioning of the heliostats in the field.
摘要:
Solar tracker with azimuthal rotation mechanism arranged on the upper extremity of the pedestal (1), comprising a fixed base (10), a hollow bearing cap (3) to support the supporting structure on the fixed base (10), a rotating mechanical element (17) arranged between the bearing cap (3) and the fixed base (10) and two hydraulic cylinders (6, 6'), arranged at different heights in relation to the vertical axis of the bearing cap (3) and, fixed at one end to the bearing cap (3) and at the other end connected by the same fixed axle (7), which is attached to the fixed base (10) in such a way that, when the pistons of the cylinders (6, 6') begin to move, they cause the bearing cap (3) to which the cylinders (6, 6') are attached, to rotate, thereby rotating the cylinders (6, 6') relative to the same axle (7), which is fixed to the base (10).