Traction ventilation device for locomotive

Abstract

The invention discloses a locomotive traction ventilation unit. The ventilation unit consists of a plurality of groups of traction motors 1 and cooling traction ventilators 3 thereof. Ventilation channels 2 are respectively disposed between each group of traction motor 1 and the corresponding cooling traction ventilator 3. The ventilation channels 2 of all traction motors are connected through a pressure-stabilizing box-type transition duct 6 which consist of underframe box beams. The interior of the pressure-stabilizing box-type transition duct 6 is provided with a flow adjustment plate 5, and an air inlet of each traction motor 1 is provided with a wind speed sensor 7. The ventilation unit can enable all traction motors to remain completely independent when a locomotive is in normal operation, is small in flow field resistance, and has no interference between the branches. Moreover, when one traction ventilator has a fault, the ventilation unit enables the cooling air of other traction ventilators with no fault to be uniformly distributed to all traction motors, and enables all traction motors of the locomotive to work normally. The ventilation unit prevents the fault of the traction ventilator from causing a failure of the locomotive, greatly reduces the failure rate of the locomotive, and reduces the impact on the normal transportation of a railway system.

Description

Technical field [0001] The invention relates to a ventilation cooling system, in particular to a traction ventilation device for a locomotive. Background technique [0002] The traction motors of modern locomotives, including power centralized EMUs, are cooled by forced ventilation by the on-board traction fans. Normally, in order to protect the locomotive traction motors, when the locomotive traction fans fail and cannot provide forced ventilation for the traction motors, they will be isolated. When the traction motor cooled by the traction fan, the locomotive will lose the power of one or more traction motors. [0003] Most of the traction ventilation devices of existing locomotives consist of one traction fan and one traction motor as a group, and one traction fan cools one traction motor, and each group is completely independent and does not interfere with each other. Although this kind of traction ventilation device has the characteristics of low flow field resistance and no ...

AI Technical Summary

Problems solved by technology

Although this kind of traction ventilation device has the characteristics of small flow field resistance and non-interference between each branch, but when a fan fails, the faulty ventilation branch has no cooling air at all, and the traction motor must stop working, so the locomotive At least one axis will lose power

Due to the large traction tonnage and high running speed of modern locomotives, when the locomotive loses the power of one axle, the locomotive will not be able to provide the traction required for normal operation, causing the locomotive to break and seriously affecting the order of railway transportation

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