Phase change cold storage device for air conditioner

Abstract

The invention relates to a phase change cold storage device for an air conditioner. The phase change cold storage device comprises a box body, a plurality of heat exchange coil pipes connected in parallel are arranged in the box body, each heat exchange coil pipe extends in an S-shaped bent shape in the length direction of the box body, fractal fins are arranged on the pipe wall of each heat exchange coil pipe, the fractal fins are of a forked structure evenly distributed along the circumference of the pipe walls, the forked structures between the adjacent heat exchange coil pipes are correspondingly connected to form a uniformly arranged net-shaped structure, and the box body is filled with a phase change material. According to the phase change cold storage device, the fractal fins are bionic step-by-step forked tree-shaped structure fins, compared with a common flat plate type fin structure, the fractal fins have the advantages that the heat exchange area is large, heat can be better transferred to the area away from the heat exchange coil pipes, the heat exchange time is greatly shortened, the cold storage and release time is prolonged, compared with other foam metal and other complex enhanced heat transfer forms, the structure is simpler, the price is low, and a better enhanced heat transfer effect is achieved with a smaller amount of metal.

Description

technical field [0001] The invention relates to the technical field of energy storage devices, in particular to a phase-change cold storage device for air conditioning. Background technique [0002] Phase change energy storage has become an important technology in the field of energy storage to improve energy utilization efficiency and protect the environment. It has broad application prospects in solving the contradiction between thermal energy supply and demand mismatch, in the fields of solar energy utilization, power "peak shifting and valley filling", waste heat and waste heat recovery, and energy saving of industrial and civil buildings and air conditioners. research hotspots. [0003] The phase change cold storage device has high phase change latent heat, small footprint, and wide phase change temperature. It is widely used in building energy saving, waste heat recovery, greenhouse energy saving, solar energy storage and other fields. However, commonly used phase ch...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of the prior art, the present invention provides a phase change cold storage device for air conditioners, which solves the technical problem of low thermal conductivity of the phase change cold storage device

Images