Sleeve phase change heat storage heat exchanger

Abstract

The invention discloses a sleeve phase change heat storage heat exchanger. The sleeve phase change heat storage heat exchanger comprises circular cooling fins, a vertical pipe, an upper end cover, a shell cylinder and a lower end cover. The plurality of circular cooling fins are vertically distributed at intervals and arranged on the periphery of the vertical pipe in a sleeving manner. The upper end cover is located above the circular cooling fins and fixedly connected with the upper end of the shell cylinder. The lower end cover is located below the circular cooling fins and fixedly connected with the lower end of the shell cylinder. The upper end of the vertical pipe penetrates the upper end cover and is fixedly connected with a through hole in the upper end cover. The lower end of the vertical pipe penetrates the lower end cover and is fixedly connected with a through hole of the lower end cover. According to the sleeve phase change heat storage heat exchanger, phase change materials are heated through cooling of the circular cooling fins on the periphery of the internal flow guide vertical pipe, and the sleeve phase change heat storage heat exchanger has the beneficial effects that the structure is simple, the heat exchange area is enlarged, and the overall heat storage and release efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a casing phase change heat storage heat exchanger. Background technique [0002] Heat storage energy storage technology is an important technology to rationally utilize existing energy\renewable energy and improve energy utilization efficiency. Heat storage technology currently mainly includes sensible heat storage, latent heat storage, chemical reaction heat storage and phase change heat storage. Phase change heat storage is to use phase change materials such as paraffin, fatty acid, molten salt, etc. to absorb or release heat when the material undergoes a phase change to achieve the purpose of storing or releasing energy. Since the latent heat of the substance is much larger than the sensible heat, and the phase change The material maintains a constant temperature when the phase change occurs, so the phase change heat storage technology has the advantages of high energy ...

AI Technical Summary

Problems solved by technology

As the core equipment in the application of heat storage energy storage technology, the phase change heat storage heat exchanger has a variety of structural forms. The phase change heat storage device in the prior art generally has a low thermal conductivity due to the structural design of the phase change material, and The heat transfer area is small, resulting in low overall heat release and heat storage efficiency

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