Efficient phase change cold storage heat exchange tube

Abstract

An efficient phase change cold storage heat exchange tube comprises a central tube, an outer shell, a transverse annular rib, a longitudinal straight rib, phase change cold storage materials and a heat preservation layer, wherein the transverse annular rib and the longitudinal straight rib which are arranged in a perpendicular and staggered mode are welded in the space between the central tube and the outer shell, and the transverse annular rib and the longitudinal straight rib play a role of fins. A fan-shaped section formed by the central tube, the outer shell, the transverse annular rib and the longitudinal straight rib is filled with the phase change cold storage materials, the heat exchange effect is enhanced due to the arrangement of the fan-shaped section, and through the heat conduction performance of the phase change cold storage materials, cold storage power and cold release power of the cold storage heat exchange tube are greatly improved. The heat preservation layer made of polyurethane materials cover the outer shell so as to play a role in preventing the cold amount from being leaked. According to an efficient phase change cold storage heat exchange device and the corresponding phase change cold storage materials with the high heat conduction coefficient, the cold storage power and the cold release power of the cold storage heat exchange tube are greatly improved, the cold storage time and the cold release time of the cold storage heat exchange tube are short, the cold storage amount is large, the structure is simple, and use and popularization are facilitated.

Description

technical field [0001] The invention relates to the field of heat exchanger equipment, in particular to a phase-change regenerator equipment for high-temperature cooling and air conditioning. Background technique [0002] Cold storage technology can play a role in balancing the load of the power grid in the air conditioning system. The common cold storage technology refers to storing cold energy at night when the power grid is at a low point, and releasing the stored cold energy during the peak load of the air conditioner during the day to meet the peak load of the air conditioner. For high-temperature cooling air-conditioning systems such as solar air-conditioning, cold storage technology can not only store excess cold energy, but also stabilize the system. [0003] The name of the patent is: a high-efficiency three-medium phase change coupled cold storage and heat exchange device, the patent number is CN [0004] In the invention patent of 102080906B, a high-efficiency th...

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Problems solved by technology

[0007] However, those skilled in the art know that in the prior art, the thermal conductivity of phase change cold storage materials is generally low, resulting in slow cold storage and cold release rates of the cold storage, thus affecting the promotion and use of this technology

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