In the event of a boiler breakdown, it’s crucial to have the necessary spare parts on hand to get your boiler up and running again as quickly as possible. If something goes wrong, you don’t want to be scrambling to find the right replacement part.
Here are five essential boiler repair spare parts you must keep onboard:
Boiler Safety Valve
Boiler Repair Spare Parts’ list includes a safety valve. Aside from the various alarms and trips, the safety valve mounted on top of a marine boiler is the only thing that protects the boiler from explosion.
In the event of a failure, the valve is designed to release internal pressure. Based on its overall size, a marine boiler may have 2 to 6 safety valves installed.
According to SOLAS chapter II-1, each boiler and steam generator should have at least two safety valves. They must be inspected and maintained on a regular basis to prevent corrosion and valve sticking. These valves are typically set to lift at 3% higher than normal stream pressure.
Boiler Vents
Under certain conditions, marine boilers are not only prone to explosions, but they can also implode. Cooling the boiler without venting the system is one example. As a result, boiler vents are installed to protect the system from implosion. This is due to the fact that the volume of steam is much greater than the volume of water.
When a large amount of steam condenses in a short period of time, a negative pressure is created inside the steam drum. If this negative pressure is not monitored, it can build up to dangerous levels, causing the boiler to self-destruct.
Alarms And Trips
Boiler Repair Spare Parts also include alarms and trips that are installed onboard. These devices monitor, alarm, and trip systems to keep them safe from harm. Water level alarms and trips, burner alarms, steam pressure alarms and trips, lube oil alarms, feed water alarms, automation, combustion air and flame failure alarms are some of the major alarm systems.
These alarms and trips are part of the boiler automation, which greatly simplifies the job of the operating crew. The system detects issues automatically, raises alarms for that specific system, and takes emergency actions such as burner cutoff, pump start/stop, and so on.
Water Level Indicators
Despite the fact that a dedicated water level control system for a marine boiler includes dedicated alarms and trips. It is standard practice to test and verify their operation by taking actual water level records with a water gauge glass.
These gauge glass-style water level indicators are installed in pairs on a boiler drum in case one fails. Other water level indicators include water level sensors and probe sensors.
Pressure Gauge
Aside from the safety valve and various alarms and trips installed, it is the various gauges, particularly the pressure gauge, that aid in the safe operation of the boiler. On a boiler assembly, various pressure gauges are installed to check and monitor steam pressure.
Modern pressure gauges also have built-in cut off/cut in features. It starts and stops the burner based on the set cut in and cut off pressure limits.
All boilers must have at least one pressure gauge; however, it is common practice for marine boilers to have two pressure gauges connected by a line from the steam drum to the engine control room.
Takeaway
These are just a few of the boiler repair spare parts you should always have on hand. You can be confident that you will be able to repair any problems that may arise if you keep these spare parts on hand. Contact your local marine supplier right away to obtain the spare parts you require.
