Trough type photo-thermal power generation system

Abstract

The invention discloses a trough type photo-thermal power generation system. The trough type photo-thermal power generation system comprises a plurality of rows of heat collecting plates, a supportingrod is arranged on each row of heat collecting plates, connectors are arranged on the supporting rods, protective pipes penetrate through the connectors, each protective pipe is provided with a cleaning mechanism, each cleaning mechanism comprises a shell, an arc-shaped cavity is formed in a fixing plate, the two ends of each arc-shaped cavity are open, two movable plates are arranged at the twoends of the arc-shaped cavity in a sliding mode, follow-up plates are arranged at the ends of the movable plates, a clamping plate I is arranged on the inner side wall of one flange, a clamping plateII is fixed to the inner side wall of the other flange, a cleaning assembly I is arranged on the inner side wall of the clamping plate I, and a cleaning assembly II is arranged on the inner side wallof the clamping plate II. According to the trough type photo-thermal power generation system, the tedious steps of traditional manual cleaning are omitted, the outer walls of the protective pipes on arow of heat collection plates are cleaned and dedusted at a time, the shutdown maintenance time of an existing photo-thermal power generation system is shortened, operators can be prevented from being exposed to the heat radiation environment for a long time, and the probability of safety accidents is reduced.

Description

technical field [0001] The invention relates to the field of new energy, in particular to a trough-type photothermal power generation system. Background technique [0002] Solar thermal power generation refers to the use of large-scale arrays of parabolic or dish-shaped mirrors to collect solar thermal energy, provide steam through heat exchange devices, and combine traditional steam turbines to drive motors to achieve the purpose of power generation. The use of solar thermal power generation technology avoids the expensive silicon crystal photoelectric conversion process, which can greatly reduce the cost of solar power generation; moreover, this form of solar energy utilization has an incomparable advantage over other forms of solar energy conversion, that is, the The heated water can be stored in a huge container, and it can still drive the steam turbine to generate electricity a few hours after the sun goes down, which means extending the time of energy conversion and im...

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Problems solved by technology

Moreover, solar thermal power generation systems are generally deployed in areas with sufficient sunlight, flat terrain, and geological stability, such as Gobi, plains, etc. A large amount of dust or dust and other attachments will accumulate on the protection tube, which will greatly reduce the light concentration efficiency of the solar thermal power generation system. It is necessary to regularly clean the protection tube and other light concentration components. The existing cleaning methods usually use manual cleaning. , and because the length of the molten salt tube in the power generation system is relatively large, and because there are arc-shaped heat collecting plates and various supports under the protection tube, the manual cleaning process is cumbersome and the workload of the operator is huge. The molten salt tube and the heat collector plate still have a certain amount of heat radiation when they are shut down, which further increases the difficulty of manual cleaning. Therefore, how to realize the rapid and efficient cleaning of the protective tube is a major research problem for researchers at present.

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