A system, method and device for detecting the interception rate of a trough parabolic collector

Abstract

The invention discloses a detection system, method and equipment for the interception rate of a trough-type parabolic surface heat collector, which includes a shading plate, an image acquisition module, an image processing module and a data processing module. There is an auxiliary reference line on the shading plate, and the auxiliary reference line includes a set of common point ray, outer circle and inner circle, and a ring in the middle of the outer circle and inner circle, whose common point is the center of the heat collecting tube and whose interval is a preset angle. Part is the detection area; the shading plate is installed on the heat collecting tube bracket, and the shading plate is perpendicular to the axis of the heat collecting tube, and the light reflected by the heat collector is projected through the detection device to observe the interception efficiency of the heat collecting tube; The heat pipe interception rate is quantified; the invention solves the problem that the collector interception rate is difficult to obtain accurately in the process of installation and operation and maintenance of the solar thermal power station using the trough parabolic collector, improves the construction efficiency, and ensures the collector Running at top working condition.

Description

technical field [0001] The invention belongs to the technical field of solar thermal power generation, and relates to a detection system, method and equipment for the interception rate of a trough-type parabolic heat collector. Background technique [0002] At present, in the parabolic collector trough solar thermal power station put into commercial application, after the collector is installed, the tracking parameters need to be corrected according to the interception rate of the collector tube, so that the collector can work in the best state. The current detection method needs to set up complex and expensive optical detection devices to detect the interception rate of the heat collecting tube, and the high overall cost makes it unfavorable for large-scale application in engineering. [0003] The conventional method is to rely on experience to adjust by means of visual inspection by on-site technicians. This mode has the following two problems: 1. The heat collecting tube ...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a system, method and equipment for detecting the interception rate of a trough parabolic heat collector; considering that it is impossible to set reference objects, interception rate For situations that are difficult to quantify and popularize and apply, an easy-to-manufacture, reusable detection device and a set of interception rate calculation methods based on the detection device are proposed

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