What equipment is used to deliver fresh air into the tank?

The equipment used to deliver fresh air into a tank is IG fans and portable blowers. In the context of tank operations, maintaining air quality is crucial for both safety and operational effectiveness. IG (Inert Gas) fans are specifically designed to introduce inert gas into a tank to create an atmosphere that minimizes the risk of flammable gases accumulating. This is vital in preventing explosive conditions and ensuring that the environment inside the tank is safe for personnel and work activities.

Portable blowers also play a significant role in ventilating tanks by moving fresh air into confined spaces. They help in ensuring that the conditions inside the tank remain safe for entry, maintenance, or inspection.

Other equipment, while important in tank operations, does not function primarily to deliver fresh air. Air compressors are typically used to compress air for various other operational purposes, heating units provide warmth but do not introduce fresh air, and exhaust fans are primarily intended to remove stale air from an area rather than to supply fresh air.