A kind of concentrating solar energy rotary boiler

Abstract

The invention relates to a light-collecting solar rotary type boiler which comprises a boiler body and a rotating mechanism installed on the boiler body. The boiler body comprises a steam drum, a downcomer, a lower interconnecting box and evaporating lifting pipe assemblies. The upper end of the downcomer is communicated with the steam drum, the lower end of the downcomer is communicated with the lower interconnecting box, the evaporating lifting pipe assemblies are circumferentially evenly distributed on the periphery of the downcomer, the upper ends of the evaporating lifting pipe assemblies are communicated with the steam drum, and the lower ends of the evaporating lifting pipe assemblies are communicated with the lower interconnecting box. A heat insulation furnace wall is further arranged on the peripheries of the evaporating lifting pipe assemblies, and a light-collecting inlet window is arranged on the side of the heat insulation furnace wall. Under the driving of the rotating mechanism, the boiler body rotates at a certain speed, it can be guaranteed that heated evaporating pipes are not subjected to overtemperature pipe explosion, sun light beams entering a window body are subjected to multiple reflection of the furnace wall and multiple absorption of lifting pipes, and the total light beam absorptivity is close to 1. The light-collecting solar rotary type boiler has the advantages of being simple in structure, safe, reliable and efficient and saving energy.

Description

technical field [0001] The invention relates to the technical field of industrial boilers, in particular to a concentrated solar rotary boiler. Background technique [0002] In my country's energy consumption structure, fossil fuels are the main energy, and coal consumption accounts for more than 70% of the total. The resulting environmental pollution and energy shortages have become bottlenecks restricting the sustainable development of my country's economy and society. The development and utilization of it is very important. As a clean energy that can be intensively developed and utilized on a large scale, solar energy has set off a new upsurge in research and development and construction around the world. [0003] Solar energy is a kind of renewable energy with a wide range and a large amount. It is the most abundant energy available to human beings. The total amount is very large. It can be said that it is inexhaustible. The solar energy received by the land surface of ...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: after sunlight is concentrated by multiple reflectors, its energy flux density is very large, which is 100-1000 times greater than conventional solar energy flux density. On the fixed heat exchange tube, the temperature will be too high and the tube will explode, which will seriously affect the safe and reliable operation of the boiler. In order to solve the problem of overheating and explosion of the heat exchange tube of the concentrating solar boiler, the invention provides a concentrating solar rotary boiler

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