33 results about "Solar disc" patented technology

The invention relates to a heat storage temperature control device of a solar disc-type Sterling engine, wherein the device is cylindrical integrally; one end of the device is provided with a solar heat collecting inner cavity, and the other end of the device is provided with a Sterling engine heat end preserved inner cavity; the middle of the device is provided with a seal box body; the device is internally provided with a heat storage material and a heat exchange guide tube; an inorganic salt high-temperature phase change material is used as the heat storage material; a high-temperature heat fluid for heat exchange acts as a heat conduction medium; heat is exchanged through the heat exchange guide tube in the device, the device is externally provided with a temperature preservation layer. One end of the device is used for absorbing heat, and the other end of the device is connected with the Sterling engine heat end; and the heat storage material and the heat exchange guide tube in the seal box body are utilized to control the temperature. Compared with the prior art, the heat storage temperature control device of the solar disc-type Sterling engine provided by the invention has the advantages that the operation temperature of the solar Sterling engine can be controlled to be constant relatively so as to improve the solar disc-type heat power generation efficiency.

The invention relates to a manufacturing method for a solar disc type system with a heat storage device. By means of the technical scheme of the method, the optimal position connecting relation among a base, an inclined heat collecting pillar, an energy storage box and a Stirling engine is given out, the problem that in the prior art, a disc frame is top-heavy is solved, and the load of the disc frame is also greatly reduced. Meanwhile, a certain inclination angle exists between a center shaft of the base and the heat collecting pillar relative to the center shaft of the base, so that heat can be better collected by a heat collector at the top end of the heat collecting pillar, and the heat collecting efficiency of the whole system is improved. The Stirling engine is arranged on one side of a heat storage box so that the heat dissipating problem of the Stirling engine can be well solved. In addition, a graphite layer serves as a material for heat collecting and conducting, sodium sulfate for capacity expanding and quantity increasing serves as an inorganic matter phase-change heat storage material, and the Stirling engine can be in a stable working state all the time.

Provided is a disc type Stirling solar disc surface column geometric calibration method. The method includes the following steps: 1) after equipment has power generation conditions, an operator forcefully starts an equipment sun-tracking system and a power generation system to collect sun position data in the sun-tracking system and sun trace data in reality; 2) fitting of column deviation is essentially a conversion relationship between a coordinate system of the sun-tracking system and a ground coordinate system, fitting of the conversion relationship between the two coordinate systems is performed by means of the data in the step 1) and through a least square method, and then a deviation value of a column is obtained; 3) the deviation value is input to an equipment control system, that is to say, the system obtains the conversion relationship between the coordinate system of the sun-tracking system and the ground coordinate system, so high-precision sun tracking is realized; and 4) whether the sun-tracking system deviates again is determined, the system is started again after the fit deviation of the column is input, and the running state of the system is observed. The method is high in efficiency and high in precision.

The invention discloses a method for testing condensation performance of a solar disc type condenser. The optical concentrating ratio distribution is determined by utilizing a method for measuring heat-flow density distribution on a spotlighting focal plane of the disc type condenser and local solar normal direct irradiance for many times in a timesharing manner. A testing device by adopting the testing method disclosed by the invention is composed of a rotary substrate (1), a heat-flow sensor (2), a fixed frame (3) and a bolt pin (4). The rotary substrate (1) is circular. A plurality of heat-flow sensors (2) are installed on the rotary substrate (1). The connection line of the central points of the heat-flow sensors (2) is superposed with a certain diameter of the rotary substrate (1). The rotary substrate (1) is fixedly connected with the fixed frame (3) through the bolt pin (4). The installation angle of the rotary substrate (1) on the fixed frame (3) can be adjusted. According to the method and the device disclosed by the invention, the condensation performance of the solar disc type condenser is tested; the optical condensing ratio of the solar disc type condenser is evaluated; and the heat-flow density distribution is provided for the use process.

The invention discloses a method for designing a disc type Stirling solar disc surface reflecting target. The method comprises the following steps of 1) constructing a disc surface simulation model on simulation software according to the actual surface of a disc surface; 2) adjusting a position of each mirror surface in the simulation model to make the disc surface converge solar radiation in a receiving plane uniformly; 3) separately extracting a reflecting light spot image of each mirror surface according to the result; 4) computing an energy center position of a light spot and taking the position coordinates as a target point corresponding to the mirror surface; and 5) repeating the step 3) to step 4) and computing target points corresponding to all mirror surfaces; and drawing the all target points on the plane to obtain the target. The invention provides the method for designing the disc type Stirling solar disc surface reflecting target, which has higher efficiency and higher precision.

The invention discloses an energy storage method and device for a solar disc type Stirling system. A Stirling heat collector is filled with metallic oxide. Focused solar energy enters the heat collector. Part of energy is transmitted to a heat head of a Stirling engine for acting. Part of energy is used for increasing the temperature of the metallic oxide. When solar energy is sufficient, and the temperature rises to the reaction temperature, the metallic oxide starts to decompose and suck affluent heat. When solar energy lacks, and the temperature in the heat collector starts to drop, the metallic oxide and oxygen in a cavity of the heat collector react, and heat is released and supplied to the Stirling engine; furthermore, the heat transfer rate of the Stirling heat head is increased by the adoption of the metallic oxide, and a heat pipe is additionally arranged between the metallic oxide and the Stirling heat head. By means of the energy storage method and device, the shortcomings of the electricity generation power fluctuation even halt caused by instable sunlight are mitigated, the output electricity quality is improved, impact on a power grid is reduced, and system efficiency is improved.