Printed circuit board molten salt heat exchanger core and application method

Abstract

The invention relates to a printed circuit board molten salt heat exchanger core and an application method. The printed circuit board molten salt heat exchanger core comprises multiple heat transfer medium channels and multiple molten salt channels arranged from top to bottom, wherein cover plates are arranged at the uppermost ends and the lowermost ends of the heat transfer medium channels and the molten salt channels; heating channels are arranged close to the molten salt channels; and heating tapes are inserted into the heating channels. According to the printed circuit board molten salt heat exchanger core and the application method provided by the invention, a heating device is arranged in a heat exchanger and is close to one side of molten salt, so that a heat transfer effect can beimproved, and meanwhile, the heating speed is accelerated. The printed circuit board molten salt heat exchanger core has the characteristics of heat transfer resistance, high heat exchange coefficientand small volume.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a core body of a printed circuit board molten salt heat exchanger and a use method thereof. Background technique [0002] Printed circuit heat exchanger (PCHE) belongs to the category of microchannel plate heat exchanger. PCHE has the advantages of compact structure, high temperature resistance, heat transfer resistance, safety and reliability, etc. It is widely used in refrigeration and air conditioning, oil and gas, nuclear industry, chemical industry, electric power industry and other fields. [0003] The heat exchange core is the core component of PCHE, and it has the structural characteristics of a porous core from the appearance structure. The micro-channels in the core provide flow channels for the heat transfer medium, while the matrix material (usually metal plate) in the core plays the role of transferring heat between the heat transfer medium and the mol...

AI Technical Summary

Problems solved by technology

The problem is that the whole process must ensure that the molten salt is in a high-temperature liquid state. Once the molten salt solidifies, it will cause irreversible and destructive losses. Therefore, it is necessary to trace the heat of the equipment (valves, joints, etc.) and pipelines that the molten salt flows through, and Strictly monitor the temperature

However, the current practice is to wrap the heating cable around the outside of the equipment or pipe. It takes a long time for the heat to be transferred from the outside to the inside, and the heating amount is relatively large.

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