Energy-storage solar superheated steam boiler adopting heat conduction oil to transfer heat and method for preparing superheated steam

Abstract

The invention relates to an energy-storage solar superheated steam boiler adopting heat conduction oil to transfer heat and a method for preparing superheated steam and belongs to a solar energy utilization technology. The steam boiler is characterized by comprising a heat supply device, a heat transfer device buffer container, a heat storage device and an output device which are sequentially connected through a heat transfer medium delivery pipeline to form a circulation loop. A heat transfer medium is heat conduction oil, and a heat storage medium can be molten salt. Different heating modes can be selected according to different environment requirements to ensure that superheated steam, steam and hot water can be supplied constantly even no sunlight is available. The boiler is good in economical benefit, is environmentally friendly, saves energy and reduces initial investment cost due to the fact that an energy storage material can adopt quartz sand compound fused salt invented by the company.

Description

technical field [0001] The invention relates to solar energy utilization technology, in particular to an energy storage solar steam boiler using heat transfer oil for heat transfer and a method for preparing steam. Background technique [0002] Superheated steam is widely used in life and industrial production. The current superheated steam boilers generally use natural gas, fuel oil, and electric heating to provide heat, but the cost of fuel is too high and causes environmental pollution. Solar boilers have become the first choice for industrial steam preparation. However, there are some defects to be solved in the current solar boiler, for example, it can only work during the day, which reduces the utilization rate of the equipment. In order to solve this problem, some solar boilers combine electric heating at night to improve the operating efficiency of the boiler; The initial temperature is low or the pipeline circulation pressure is insufficient, and the molten salt ...

AI Technical Summary

Problems solved by technology

But the current solar boilers have some deficiencies to be solved, for example, they can only work during the day, which reduces the utilization rate of equipment

In order to solve this problem, some solar boilers combine electric heating at night to improve the operating efficiency of the boiler; The initial temperature is low or the pipeline circulation pressure is insufficient, and the molten salt is easy to solidify after exchanging heat with water in the thermal circulation system or crystallize on the heat transfer surface, etc., resulting in blockage of the circulation pipeline; thirdly, the current solar boiler products have higher environmental requirements , in some environments low efficiency leads to high operating costs

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