Subway induction fan

Abstract

The invention discloses a subway induction fan. The subway induction fan comprises a main box body, wherein a partition plate is arranged in the main box body and divides the main box body into an upper air duct and a lower air duct, an air outlet is formed in the front end of the upper air duct, an air inlet is formed in the tail end of the lower air duct, a ventilation opening is formed betweenthe upper air duct and the lower air duct, a centrifugal fan is arranged in the upper air duct, the centrifugal fan is located right above the ventilation opening, sound absorption plates are arrangedon the side walls of the upper air duct and the lower air duct, and air guide plates parallel to the air inlet direction and dividing the ventilation opening into two halves are arranged in the lowerair duct. According to the subway induction fan, after the centrifugal fan is started, air is inlet through the lower air duct and then flows out of the upper air duct through the ventilation opening, and the noise is remarkably reduced after the sound absorption plates are arranged; and in addition, the turbulence is reduced by arranging the air guide plates, the air flow is stabler and smoother, the noise is further reduced, the air outlet jetting speed is further increased, the performance is remarkably improved, and the subway induction fan is suitable for being used on a subway.

Description

technical field [0001] The invention belongs to the technical field of fans, in particular to a subway induction fan. Background technique [0002] Induced fan: also known as jet fan, relay fan. It passes through the air through induction. The wind volume itself is very small. It is often used in the ventilation system of the garage in public facilities to stir and remove local air dead corners to improve local air. Its working principle is the directional high-speed airflow ejected from the nozzles of multiple induction fans designed by the system and properly arranged to induce outdoor fresh air or treated air, and send it to the required area under the condition of no air duct. To achieve the best indoor air distribution, in order to achieve efficient and economical ventilation effect. The subway induction fan is an induction fan used on the subway, and its purpose is to achieve ventilation in the subway. Since the subway is a public transportation device, it is requ...

AI Technical Summary

Problems solved by technology

Since the subway is a public transportation device, it is required to produce low noise and high speed of fire, but the existing induced fan produces relatively large noise and low speed of fire, which is difficult to meet the needs of the subway.

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