A detection device for focusing precision of dish solar concentrator

Abstract

The invention discloses a detection device for focusing accuracy of a disk type solar condenser. The detection device comprises a focusing target plate, light intensity sensor sets and optical filters, wherein light cannot pass through the focusing target plate, the focusing target plate is further provided with a plurality of locating grooves, the light intensity sensor sets are composed of light intensity sensors, the arrangement mode of the light intensity sensors is the same as the arrangement mode of reflectors of the disk type solar condenser, the light intensity sensors are arranged in the locating grooves, the light intensity sensor sets include the middle light intensity sensor set and the annular light intensity sensor set, the middle light intensity sensor set is composed of the light intensity sensors located in the middle of the focusing target plate, the annular light intensity sensor set is composed of the light intensity sensors which are located on the periphery of the focusing target plate and are combined to be annular in a surrounding mode, the light intensity sensors are covered with the optical filters, the filtering coefficients of the optical filters corresponding to all the light intensity sensors in the same light intensity sensor set are the same, and the filtering coefficients of the optical filters corresponding to the light intensity sensors in different light intensity sensor sets are different. According to the detection device for focusing accuracy of the disk type solar condenser, a user can conveniently adjust focusing accuracy of the reflectors, so that efficiency of a disk type Stirling thermal power generation system is improved.

Description

technical field [0001] The invention relates to the technical field of solar concentrators, in particular to a detection device for focusing precision of a dish-type solar concentrator. Background technique [0002] With the advancement of science and technology and the requirement of a comprehensive and coordinated sustainable development strategy, the use of solar thermal power generation technology has become more and more important. Dish-type Stirling solar thermal power generation belongs to the utilization of solar thermal power generation technology, which is a technology that gathers solar radiation energy to generate heat energy and generates power through thermal cycle. [0003] At present, the dish-type Stirling thermal power generation system includes a Stirling generator. The Stirling generator is a photoelectric conversion component that absorbs the solar light energy collected by the dish-type solar concentrator through the thermal head and converts it into he...

AI Technical Summary

Problems solved by technology

When the focusing accuracy of the dish solar concentrator is poor, errors will occur in the size and shape of the focused spot, and the energy distribution of the focal spot will be uneven, resulting in uneven heat absorption by the thermal head, which will cause uneven energy transfer to each cylinder. Uniformity makes the work of each cylinder unbalanced and reduces the efficiency of the Stirling machine

[0004] In addition, when the uneven energy distribution of the focal spot is serious, local high temperature spots will be formed on the thermal head, resulting in overheating of the heat absorption tube on the thermal head. If the allowable temperature is exceeded, the heat absorption tube may be ablated and damaged. Once the heat-absorbing tube is burnt out, the high-pressure hydrogen or helium gas in the tube is ejected, and it is directly exposed to the high temperature of the focal spot, which will cause very serious consequences, and even explode and catch fire

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