| > | | | | wrappedaround the boiler do their function well - |
| Boiler inspections are necessary in order to find out | | | | containing theheat. And you are given the task to |
| theeffectiveness of the boiler water chemical | | | | open up the manholesfor inspection. |
| treatment. Itis also useful to detect any faults or | | | | If there is a manhole at the top of the boiler and one |
| potential weaknessin the steel structures, plates and | | | | atthe bottom, which one would you open first? |
| shells so that accidentscan be avoided. | | | | Think about it! Hot air rises. Heat travels in |
| However, even entering the boiler for inspection can | | | | convectioncurrents. If you were to open the bottom |
| be asafety hazard if you are not careful! | | | | manhole first andthe top manhole later, you will |
| Firstly, the heat, and the remaining steam. It is | | | | create a channel for theflow of hot air. Hot air from |
| betterto cool the boiler sufficiently before entry. | | | | the remaining steam will riseup very quickly and |
| However,sometimes, inspections have to be done in | | | | overwhelm you if you are at the topmanhole. |
| a hurry. Perhapsthere is a schedule to be followed, or | | | | So always, open the top manhole first, followed by |
| the steam supplycannot be stopped for a long time. | | | | thebottom manhole. When the hot convectional |
| Or perhaps it is veryimportant to find out the | | | | current flow,you will be at the bottom and not be |
| condition of the boiler as soonas possible. | | | | harmed. |
| Let's say the boiler is still warm. There isn't | | | | Think safety! |
| sufficienttime to cool it. The thick insulation materials | | | | "PRODUCE YOUR BEST WITH THE BEST! |