Heating, ventilating and air conditioning system of low-floor light rail vehicle

Abstract

The invention discloses a heating, ventilating and air conditioning system of a low-floor light rail vehicle. The heating, ventilating and air conditioning system of the low-floor light rail vehicle comprises a first air supply and return unit arranged in a passenger room and a second air supply and return unit arranged in a cab. According to the first air supply and return unit, the air inflow and outflow mode that air is supplied from the two sides and returns from the middle is adopted for a top plate of a compartment. A second air supply duct of the second air supply and return unit winds through vehicle window side glass and front window glass, air inlets are formed in the front and the side of a console, and an air return port is formed in the vehicle ceiling of the cab. The heating, ventilating and air conditioning system can meet the requirements for heating, ventilating, refrigerating and heating of the low-floor vehicle and meet the requirements for ventilating and temperature of the passenger room and the cab, uniformity of air outflow of air supply ports and uniformity of temperature in indoor space are guaranteed, fresh air can run through the whole vehicle space, and the comfort requirement of passengers is met. What is the most important, no extra structural arrangement is added, and the total vehicle weight, the vehicle power consumption and the power will not be increased.

Description

technical field [0001] The invention relates to rail vehicle technology, in particular to a heating, ventilation and air-conditioning system for a low-floor light rail vehicle. Background technique [0002] At present, the air supply system of 100% or 70% low-floor light rail vehicles is generally equipped with air supply ducts in each compartment, which not only increases the weight of the air duct, indirectly increases the net weight of the vehicle, but also increases the capacity of the air duct. Cost and difficulty of installation and fixation. Each compartment is equipped with an air supply duct, which not only increases the difficulty of the air duct design, but also tends to cause problems such as poor air supply uniformity and uneven temperature distribution in the car due to the long length of the air duct. [0003] In addition, the length of the air duct of the existing air supply system is relatively long and complex, which increases the flow resistance of the du...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to avoid a series of adverse effects such as weight gain, power increase, and energy consumption increase brought by the heating, ventilation and air-conditioning system of the low-floor light rail vehicle.

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