Confined space entry can be a tedious task under normal circumstances. Whether the inspection process is within a storage tank, a ballast tank, a boiler or a pressure vessel. The process generally remains the same.
The process that feeds the storage tank or confined space must first be shut down and isolated prior to opening the space to the elements. The confined space must then be made safe, either by venting to atmosphere, displacing the stagnant air within with fresh oxygen or left for a set period to allow sufficient circulation. Then the oxygen levels must be monitored internally as well as toxic gas levels such as H2S or Hydrocarbons.
Once gas levels are found to be dispersed the next process would be to start the confined space entry permit certification which in itself is a huge task. Trained personnel only, with escape set familiarisation, oxygen and gas monitors, two personnel to enter the tank and two to stay on the surface plus a winch to allow for the hoist of personnel if emergency circumstances dictate.
The situation is extremely volatile and can drastically change in an instant. Not to mention the loss in revenue incurred towards the shutdown and either reduction in productivity or complete downtime.
Similar circumstances dictate when boiler inspection or furnace survey is required the boiler must be brought down to a reasonable temperature prior to entry. A scaffold must be erected or a decision made to utilise rope access personnel. Generally, rope access is the preferred option. However is still extremely costly and laden with potential risk.
Confined Space Drone Technology
DJM Aerial Solutions are now able to offer confined space, storage tank and pressure vessel inspection utilising confined space drone technology, we have access to some of the highest specification UAV on the market and our fleet of equipment is developed and manufactured around asset integrity inspection.
To speak to us regarding your internal inspection contact us using our contact page or call us on 01642 903779