A tube-fin phase change energy storage heat exchanger

Abstract

The invention provides a tube fin type phase-change energy storage heat exchanger. The tube fin type phase-change energy storage heat exchanger comprises an energy storage box, a phase-change material, at least two groups of heat tubes and a plurality of tube fins, wherein the tube fins are arranged in the energy storage box in parallel for dividing a space in the energy storage box into a plurality of filling areas; each group of heat tubes comprises a plurality of heat tube transverse tubes which are parallel to one another; the heat tube transverse tubes of the group of the heat tubes are integrated into a roundabout integer tube through heat tube bent tubes on the end parts of the heat tube transverse tubes; the heat tube transverse tubes of each group of heat tubes perpendicularly pass through each tube fin, and each tube fin is crossed with the outer wall surface of each heat tube transverse tube; and the phase-change material is filled at the peripheries of the heat tube transverse tubes and the tube fins in a filling area. The tube fin type phase-change energy storage heat exchanger solves a series of technical problems that a phase-change energy storage device in the priorart is uneven in internal heat transfer, is low in energy storage efficiency, the phase-change material is condensed on the outer walls of the heat tubes and the like, improves intelligent precise control ability of the heat exchanger, and realizes optimization of heat exchange efficiency.

Description

technical field [0001] The present application relates to the field of energy technology, in particular to a tube-fin phase change energy storage heat exchanger. Background technique [0002] The combined heat and power system outputs power and heat to the outside world, which can meet the needs of urban and rural electricity and heat at the same time. However, due to the staggered heat and electricity peaks, energy storage is required when the heat output of the combined heat and power system exceeds the real-time heat demand. [0003] Phase change energy storage devices use phase change materials to store and release thermal energy. Phase change materials have the following temperature characteristics: when the temperature rises to the phase change temperature, the physical state of the phase change material changes, while the temperature of the phase change material itself remains almost unchanged before the phase change is completed. During this process, a large number ...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of this application is to propose a tube-fin phase change energy storage heat exchanger to solve the problem of uneven heat conduction inside the phase change energy storage device in the prior art, low energy storage efficiency, and phase change material on the outer wall of the heat pipe. A series of technical problems such as condensation, and improve the intelligent and precise control ability of the heat exchanger to achieve the optimization of heat exchange efficiency

Images