Precautions for Using Explosion-Proof and Corrosion-Resistant Axial Flow Fans

Precautions for Using Explosion-Proof and Corrosion-Resistant Axial Flow Fans

There are several precautions to follow when using explosion-proof and corrosion-resistant axial flow fans, as explained below. 1. While the explosion-proof and corrosion-resistant axial flow fan is operating, monitor the ammeter reading and stop the fan immediately to check for any abnormalities. 2. During operation, always monitor the temperature of the bearings and lubricating oil, as well as the ammeter reading. If the explosion-proof and corrosion-resistant axial flow fan requires cooling water, verify that the cooling water flow meets the specified requirements. When inspecting the seals of the fan, check for any leaks. In the event of a severe leak, the seals must be replaced immediately to prevent safety incidents caused by hazardous gas leaks and bearing damage caused by corrosive gas leaks. 3. When shutting down, depressurize and reduce the load before stopping the fan. Due to improper operation, shutdown, or sudden power failure, high-pressure gas in the outlet system of the explosion-proof and corrosion-resistant axial flow fan may rapidly flow toward the fan’s lower inlet side (i.e., “backflow”), causing the high-pressure gas to drive the fan to accelerate and increase the propeller speed. If the propeller speed reaches the maximum limit, a major accident involving collision and destruction between the propeller and the housing may occur. In particular, for users such as fertilizer plants that transport flammable and explosive gases, strict operational procedures must be followed, as damage to the impeller of an explosion-proof and corrosion-resistant axial flow fan can lead to even more dangerous accidents such as explosions and fires. Explosion-proof and corrosion-resistant axial flow fans require regular inspection and documentation. If any abnormalities are detected, please address them promptly.