Air, water composite cooling pipe dedicated to large and medium size electrical motor

Abstract

The composite cooling tube includes base tube and radiating tube. Annular fins are prepared on external surface of the radiating tube. The fin is in wedged structure with lower thicker and upper thinner. Slot base face between fins is in arc shape. Width of fin is 8-20 mm. Advantages are: good cooling effect, saving water, saving electricity, high intensity. Compared with other cooling tubes, the disclosed cooling tube possesses features of good heat elimination power of temperature difference under same volume unit, small composite tolerance, and good contact between two kinds of tube, and good effect of heat transfer. Compared with same kind of domestic products, the disclosed cooling tube raises composite performance 30%, and raises heat exchange performance more than 10%. The said wedged structure raises impact capability of anti wind in high pressure effectively and service life.

Description

technical field [0001] The invention relates to a heat dissipation pipe, in particular to a cooling pipe for a motor, which is a special air-water composite cooling pipe for large and medium-sized motors which adopts an air-water cooling mode to cool large and medium-sized motors. Background technique [0002] The cooling method used in the early motors was the ventilation duct type, and the hot air was directly discharged into the atmosphere, which caused a certain degree of pollution to the environment. After the 1980s, backpack air coolers were used instead, and the heat exchange tubes used were coiled heat exchange tubes, coiled spring heat exchange tubes and pierced plate heat exchange tubes, but these three tube types are not Very ideal, the quality of the coiled fin heat exchange tube is unstable, and the heat transfer effect is poor. The material of the coiled spring heat exchange tube is copper, so the cost is high, and this tube type has a large wind resistance. ...

AI Technical Summary

Problems solved by technology

[0002] The cooling method used in the early motors was the ventilation duct type, and the hot air was directly discharged into the atmosphere, which caused a certain degree of pollution to the environment.

After the 1980s, backpack air coolers were used instead, and the heat exchange tubes used were coiled heat exchange tubes, coiled spring heat exchange tubes and pierced plate heat exchange tubes, but these three tube types are not Very ideal. The quality of the coiled fin heat exchange tube is unstable and the heat transfer effect is poor. Because the material of the heat dissipation part of the coiled spring heat exchange tube is copper, the cost is high, and this tube type has a large air resistance

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