Air injection device for low-noise classroom

Abstract

The invention relates to an air injection device for a low-noise classroom. The air injection device for the low-noise classroom comprises a box body and an air pipe connector. A plurality of adjustable ball-shaped nozzles are installed on the side wall of the box body, the air pipe connector is installed at one end of the air pipe connector, and a silencing material layer is paved on the inner side wall of the box body. The air injection device for the low-noise classroom is easily combined combine with a building and can inject purified fresh air out, supplied air jets can reach all positions in the classroom after spreading, and noise is lowered.

Description

technical field [0001] The invention relates to the field of fresh air supply devices for classrooms, in particular to an air injection device for low-noise classrooms. Background technique [0002] Most domestic school classrooms are equipped with centralized air-conditioning systems. Although the installation of air-conditioning can solve the indoor temperature and humidity control, the indoor air quality cannot be controlled, and the classrooms are densely populated. To ensure indoor air quality, the main measure is ventilation, that is, Replace polluted indoor air with treated outdoor air. Therefore, it is very necessary to provide fresh air indoors in places where kindergartens and primary and secondary schools are densely populated. In most occasions, fresh air is supplied by gaps in doors and windows. However, only by convection and weak fresh air through gaps in doors and windows, the fresh air volume is generally less than 1%, which is far from meeting the requirem...

AI Technical Summary

Problems solved by technology

In most occasions, fresh air is supplied by gaps in doors and windows. However, only by convection and weak fresh air through gaps in doors and windows, the fresh air volume is generally less than 1%, which is far from meeting the requirements. Discontinuous and increase operating costs, so in order to ensure the ventilation effect, a fresh air system should be installed in the classroom

[0003] In recent years, my country's smog weather has become more and more serious. Conventional air-conditioning fresh air treatment systems only have coarse and intermediate air filters, which cannot effectively control PM2.5

The fresh air processed by the conventional air-conditioning system in the school will cause harm to the health of children and affect the health of students. Therefore, it is required that the fresh air provided to the classroom must be purified.

[0004] Conventional fresh air systems need to lay fresh air ducts, air supply ducts, and return air ducts indoors. In order to ensure the air distribution effect, it is usually necessary to set up multiple air supply ports and perform diagonal return air, which will make the air ducts too long. Buildings like classrooms take up a lot of space, require a large amount of construction, and the surface installation of air ducts is extremely unsightly.

[0005] The classroom is a relatively quiet environment. When the air flows in the air duct, it will inevitably produce noise, which will interfere with students' learning.

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