Internal ventilating structure of cooler of alternating-current low-speed motor

Abstract

The invention discloses an internal ventilating structure of a cooler of an alternating-current low-speed motor, and belongs to the technical field of heat exchange. The internal ventilating structure of the cooler of the alternating-current low-speed motor comprises a cooler housing, wherein tube plates are arranged at the two ends of the cooler housing respectively; a partition board is arranged in the middle of the cooler housing; a cooling tube is arranged in an M shape; the M-shaped arrangement is characterized in that air circulation outside the tube is changeable in multiple directions, so that the heat exchanging dead zone of the cooling tube can be reduced and the using efficiency of the cooling tube can be improved; a ventilation path is arranged into a two-return structure; through the M-shaped arrangement of the tube, relatively low wind resistance of an internal ventilation path can be obtained; the internal ventilation path is changed into two-return from four-return, so that one-return circulating area is increased and the pressure drop of the internal ventilation path is significantly reduced.

Description

technical field [0001] The invention relates to an air-to-air cooler, in particular to an internal ventilation structure of a cooler main body in the cooling mode of AC low-speed axial or radial axial ventilation motors IC611 and IC616, and belongs to the technical field of heat exchange. Background technique [0002] In the prior art, the air paths in the air-to-air coolers of AC axial or radial axial ventilation motors IC611 and IC616 cooling methods all adopt a four-return structure. Such as Figure 1 to Figure 4 As shown, two tube plates A are set in the cooler shell, which are located at both ends of the shell; two partitions B and one partition C are set in the middle of the shell; "M" is set on each plate The cooling pipe installation holes are arranged in a pattern, and the cooling pipes are installed in the above holes so as to penetrate through each plate. Among them, the tube plate A has no opening except the cooling pipe installation hole, the upper part of the ...

AI Technical Summary

Problems solved by technology

In the process of heat exchange, due to the small flow section of the internal air passage, the wind resistance is large, and the wind pressure generated by the low-speed motor is low; the combination of these two factors often causes insufficient air flow in the internal air passage when the low-speed motor is used in practice. Very bad for heat transfer

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