Centrifugal fan special for fire fighting access

Abstract

The invention discloses a centrifugal fan special for a fire fighting access, and relates to the technical field of centrifugal fans, in particular to the centrifugal fan special for the fire fightingaccess. The fan comprises a centrifugal fan shell, the bottom of the centrifugal fan shell is fixedly connected with uniformly distributed ventilation plates, and the top of the centrifugal fan shellis fixedly connected with a heat dissipation cylinder; and heat dissipation plates are fixedly connected to the two sides of the exterior of the centrifugal fan shell. According to the centrifugal fan special for the fire fighting access, a motor is fixedly connected into the centrifugal fan shell, fan blades which are symmetrically distributed are fixedly connected to the exterior of a rotor atthe bottom end of the motor, and the heat dissipation cylinder and the heat dissipation plates are fixedly connected to the exterior and the outer side of the centrifugal fan shell correspondingly; and it can be guaranteed that the device can effectively extract away smoke in the fire fighting access, and then the problems that a centrifugal fan in an existing device is low in work efficiency, andheat of a motor is not prone to be dissipated in a closed environment are solved.

Description

technical field [0001] The invention relates to the technical field of centrifugal fans, in particular to a special centrifugal fan for fire-fighting passages. Background technique [0002] Fire exits refer to the passages for firefighters to rescue and evacuate trapped people, such as stairways and aisles, where fire indicator lights are installed. Fire exits play a role that cannot be underestimated in various dangerous situations. Smoke and other harmful gases, so people need a special centrifugal fan for fire exits in the process of building fire exits. [0003] At present, most of the equipment for fire exits on the market use independent centrifugal fans and pipes in combination. However, fire exits are often long and have a large space. It is difficult for independent centrifugal fans to quickly extract the smoke inside the fire exits. In addition In the process of extracting the fire exit of the existing device, the working efficiency of the centrifugal fan is low, ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the equipment for fire exits on the market use independent centrifugal fans and pipes in combination. However, fire exits are often long and have a large space. It is difficult for independent centrifugal fans to quickly extract the smoke inside the fire exits. In addition In the process of extracting the fire exit of the existing device, the working efficiency of the centrifugal fan is low, and the ability to extract the smoke is low. Or the internal air circulation of fire exits in shopping malls and other places is poor, so we propose a special centrifugal fan for fire exits

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