Dustproof heat dissipation system and method for subway vehicle-mounted controller cabinet

Abstract

The invention discloses a dustproof heat dissipation system and method for a subway vehicle-mounted controller cabinet. The system is composed of a positive pressure dustproof heat dissipation unit, an air distribution heat dissipation unit, a heat pipe heat dissipation unit, a dustproof filter automatic updating unit and a signal processing main control unit. The positive pressure dustproof heatdissipation unit filters air inflow through a fan dust filter screen and exhausts air through a vent hole. The air distribution heat dissipation unit separates hot and cold air in an orderly flow. Thedustproof heat dissipation system is embedded in the vehicle-mounted controller cabinet. When the working temperature exceeds the alarm temperature, the system switches to a traditional negative pressure heat dissipation mode. The TCO of the system is reduced, and the reliability of the system is improved. The fan dust filter screen is used to filter air inflow, and air is exhausted through the vent hole of the cabinet. Positive air pressure is formed in the cabinet, and positive air pressure prevents dust from entering the cabinet. A cabinet air path is designed to separate hot and cold airin an orderly flow, which improves the heat dissipation efficiency. The heat of hot pints of a vehicle-mounted controller is exported through a heat pipe, which is efficient and effective. The systemautomatically updates the dust filter screen, which reduces operation and maintenance and has good performances of dust proof and heat dissipation.

Description

technical field [0001] The invention belongs to the technical category of dust prevention and heat dissipation. In particular, it refers to the dust-proof and heat-dissipating system and method of the subway vehicle-mounted controller cabinet that adopts positive pressure, self-renewing filter screen according to wind resistance, hot spots in the cabinet are dissipated through heat pipes, and cold and hot air flow is separated. Background technique [0002] In 1863, the world's first "Metropolis" subway line pulled by a steam locomotive was completed and opened to traffic in London, England. As an important urban transportation method, the subway has accompanied mankind for 155 years. In the 1960s, Beijing prepared to build my country's first subway line. The subway has many advantages such as large transportation volume, energy saving and high efficiency, and saving land resources. It has become a good solution to urban traffic difficulties and is widely favored. In recen...

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Problems solved by technology

[0016] The above-mentioned beneficial exploration is a summary of the research results of the heat dissipation of electrical cabinets; unfortunately, the dust-proof and heat-dissipating system of subway car cabinets has been seldom paid attention to so far, and the safety needs of subway operations have not been met for a long time

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