Complex air mixing device for subway air conditioner

Abstract

The invention discloses a complex air mixing device for a subway air conditioner. The complex air mixing device comprises a shell and a filter system, the shell is provided with a fresh air port, an air return port and an air outlet, and the filter system comprises a primary filter section, a secondary filter section, an electret filter section and an electrostatic filter section. The primary filter section and the secondary filter section are arranged at the fresh air port, the electret filter section is arranged at the air return port, and the electrostatic filter section is arranged at the air outlet. A power supply module is arranged on the top wall of the shell, and a particulate matter concentration detector is arranged in the shell, electrically connected with the power supply module and positioned between the electret filter section and the electrostatic filter section. The complex air mixing device is capable of efficiently filtering fine particulate matters in fresh air and returned air and has bactericidal, sterilizing and odor eliminating functions to truly guarantee physical health of passengers in carriages. In addition, the complex air mixing device has a synchronous detection function, electric energy distribution and energy saving are realized, completeness of an air conditioner set can be guaranteed, and convenience in assembly and utilization is achieved.

Description

technical field [0001] The invention relates to the technical field of filter devices, in particular to a composite air mixing device for subway vehicle air conditioners. Background technique [0002] At present, the air treatment method of domestic subway vehicle units usually adopts primary return air, that is, the fresh air inhaled from outside the carriage and the return air inhaled from the carriage are mixed in the air mixing chamber. After the mixed air is cooled and dehumidified by the evaporator, it is then distributed by The ventilator is sent into the car to absorb the waste heat and humidity inside the car. Although the air-conditioning system on the subway car can adjust the temperature and humidity, it cannot remove the pollutants in the air. [0003] Subway cars are relatively closed and carry a large number of passengers. The air pollution in the car is relatively serious. There are not only volatile organic compounds emitted by the interior decoration materi...

AI Technical Summary

Problems solved by technology

However, the existing air-conditioning units for subway vehicles use air filtration for the purpose of protecting the air-conditioning equipment. A fresh-air grille that can prevent rain, snow, and sundries from entering is only installed after the fresh air outlet, and a mixed air filter is installed before the evaporator. The hybrid air filter can only filter large particles in the air, but cannot effectively filter fine particles (such as PM1 and PM2.5) and pathogenic microorganisms that are more harmful to the human body

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