Anti-explosion centrifugal ventilator for drafting heat box

Abstract

The invention discloses an explosion-proof centrifugal fan for a drafting hot box, which comprises a fan body and an air flow exchange hole. An air outlet channel is fixedly installed on the outer surface of the fan body, and an outer surface of one end of the air outlet channel is fixedly installed. There is a hot air outlet, the outer surface of one end of the main body of the fan is provided with a shroud, and a temperature alarm is fixedly installed on the outer surface of one end of the main body of the fan near the obliquely above the shroud. An explosion-proof centrifugal fan for a drafting hot box according to the present invention is equipped with a temperature alarm, a temperature-resistant bearing and a ceramic explosion-proof net, which can prevent internal components from malfunctioning due to high temperature, and is an imported high-temperature-resistant At the same time, the bearing can effectively reduce the friction force and improve the transmission effect. It also has the superior performance of high mechanical strength, heat shock resistance and chemical corrosion resistance. It can well protect the inside of the centrifugal fan and avoid worries. It is suitable for different working conditions. , leading to a better prospect of use.

Description

technical field [0001] The invention relates to the field of ventilators, in particular to an explosion-proof centrifugal ventilator for a drafting hot box. Background technique [0002] Fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Modern fans are widely used in ventilation, dust removal and cooling of factories, tunnels, vehicles, ships and buildings. , is also applicable to the drafting hot box; the existing explosion-proof centrifugal fan for the drafting hot box has certain disadvantages in use, and the internal temperature cannot be monitored in time. When the temperature is too high, it is easy to damage the internal rotating shaft and other components, and the bearing The temperature resistance is poor, and the shock absorption effect is not obvious. The fan is not equipped with an explosion-proof device, which is likely to cause safety problems and bring certain adverse effects durin...

AI Technical Summary

Problems solved by technology

[0002] Fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Modern fans are widely used in ventilation, dust removal and cooling of factories, tunnels, vehicles, ships and buildings. , is also applicable to the drafting hot box; the existing explosion-proof centrifugal fan for the drafting hot box has certain disadvantages in use, and the internal temperature cannot be monitored in time. When the temperature is too high, it is easy to damage the internal rotating shaft and other components, and the bearings The temperature resistance is poor, and the shock absorption effect is not obvious. The fan is not equipped with an explosion-proof device, which is likely to cause safety problems and bring certain adverse effects during the operation. Therefore, we propose an explosion-proof drafting hot box. Centrifugal Fan

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