Boiler safety devices. A quick check for the surveyor

Greetings! In this article I recommend that you familiarize yourself with the main safety devices of auxiliary boiler on a ship that inspectors like to check. It does not matter which inspector came to the ship (PSC, flag, annual surveyor, etc.), usually the checks are not much different.

Surveyors mainly look at how critical protections work (selectively), i.e. those protections that stop the boiler (shutdown protection). They are not very concerned with auxiliary signals (alarms). But it is necessary to be prepared for everything, i.e. for the fact that the inspector can check the auxiliary alarms of the boiler. 

General Directions on Replacement of Faulty Components

Prior to replacing faulty components and adjusting new ones in compliance with the circuit requirements, apart from general acquaintance with the principle of operation and the design of separate components and the unit as a whole, it is required to analyze thoroughly the arrangement of separate parts in the unit, their fastening and accessibility on the sample.

When eliminating the faults detected, the units should be disassembled only in case of actual necessity.

When replacing the faulty components or adjusting the units, it is required to use only the appropriate tools, i. e. all nuts and bolts should be turned out and in by the proper size box spanners or flat keys, and all screws — by screwdrivers corresponding to the sizes of the heads and slits.