Positive pressure ventilation system for diesel locomotive power room

Abstract

The invention discloses a positive pressure ventilation system of a power chamber of a diesel locomotive. The positive pressure ventilation system comprises a sealed clean air chamber and a power chamber, wherein the clean air chamber is internally provided with a ventilation fan; the power chamber is internally provided with a main generator, a diesel engine and original equipment; the outlet end of an air filter is connected with the ventilation fan; the ventilation fan is respectively connected with the main generator, the diesel engine and the original equipment by virtue of a main air duct; the main air duct is externally connected with an air duct which is connected and communicated with an air outlet pipe of the power chamber. The positive pressure ventilation system has the advantages that air is clean; the air entering into the power chamber is filtrated by the air filter, so that the dust removal rate is up to 90%, and the power chamber is prevented from being polluted by outside dust and sand; positive pressure ventilation is adopted, so that the positive pressure station in the power chamber is ensured, and dust, sand and the like outside a vehicle are prevented from being sucked into the power chamber; district cooling is adopted, and cooling air is guided to different regions of the power chamber by virtue of air distribution ducts, so that the cooling target is explicit; the outlets of the air distribution ducts are provided with throttling plates, so that the air outlet quantity can be regulated.

Description

technical field [0001] The invention relates to a positive pressure ventilation system for a power room of a diesel locomotive, belonging to the technical field of ventilation systems for a power room of a diesel locomotive. Background technique [0002] The power room of a diesel locomotive is mainly equipped with a diesel engine, a main generator and its auxiliary devices. The diesel engine is one of the main heat sources of a diesel locomotive. [0003] At present, the ventilation system of the diesel locomotive power room mainly adopts two methods: [0004] One is to use a car body fan to extract air. The ventilation system with a car body fan is mainly to install an axial flow fan on the top cover or side wall of the power room to draw air outside the car. However, due to the large volume of the ventilator, it takes up a lot of space, and the way of drawing air will form a negative pressure inside the power room, which will easily suck the dust outside the car into the...

AI Technical Summary

Problems solved by technology

However, due to the large size of the ventilator, it takes up a lot of space, and the way of drawing air will form a negative pressure inside the power room, which will easily suck the dust outside the car into the power room, affecting the cleanliness of the power room

[0005] The second is to adopt the exhaust air cooling of the main generator. The exhaust air of the main generator is directly discharged into the ventilation system of the power room. Since the exhausted wind is the air after cooling the main generator, the air has been heated, and the cooling of the power room is not very ideal. , especially some temperature-sensitive electrical components, will affect their service life

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