What to Do in Case of Purifier Room Fire?

What to Do in Case of Purifier Room Fire?

Purifier rooms are among the most fire-prone areas in engine rooms. Purifier room fires have caused serious accidents on several ships. This article will introduce you to all aspects of cleanroom fires.

Causes of Purifierroom Fires

As is well known, a fire requires three basic elements, all of which are present in a cleanroom. These three elements are: fuel (lubricating oil in the lubricating oil separator and fuel or diesel in the fuel separator), air for combustion, and a heat source (such as high-temperature oil or a short circuit).

A fire will occur when these elements are present simultaneously and within a flammable range.

Therefore, if oil leaks through pipes onto high-temperature surfaces or electrical components, it will immediately ignite a fire.

Cleanroom Fire Prevention

To prevent fires in cleanrooms, the following measuresmust be taken:

1) All pipes leading to the separators must be double-insulated. This is because if the inner pipe leaks, the oil will not spread throughout the room but will leak into the outer pipe.

2) An oil drip collection tray must be installed below the purifier or separator to prevent oil from spreading throughout the room and coming into contact with hot materials, potentially causing a fire.

3) All pipes with flanges or connections must be covered with spill-proof tape to prevent oil spills in case of leaks.

4) A fire suppression system, such as a water mist system or a carbon dioxide system, must be installed.

5) Quick-shutdown valves and remote shut-off systems must be installed for pumps and purifiers.

6) A fire detection and alarm system must be installed to ensure rapid response.

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How to Extinguish a Fire in a Cleanroom?

Small fires in a cleanroom can be easily extinguished with a small fire extinguisher. In case of a larger fire, follow these steps:

1) After the fire alarm sounds, immediately contact the chief engineer and determine the location of the fire.

2) If an oil leak occurs, close the quick-shutdown valve.

3) Shut down the transfer pump.

4) Both the transfer pump and the quick-shutdown valve can be shut down remotely, for example, from the ship's control center or engine room.

5) Use the emergency stop button located outside the cleanroom to shut off all motors and electrical equipment.

6) Fire extinguishers can be used to extinguish the fire.

7) In case of a large fire, shut off the air supply pumps and smoke vents inside the cleanroom.

8) If the ship is equipped with a water mist fire suppression system, the fire can be extinguished by activating that system.

9) When entering the purge room, fire suits, self-contained breathing apparatus (SCBA), and fire hoses must be worn.

10) Fires can be extinguished by spraying water.

11) If the fire persists, the chief engineer will decide whether to use carbon dioxide cylinders for fire suppression.

12) No one should be present in the purge room when using carbon dioxide cylinders, as carbon dioxide will displace air, causing asphyxiation and potentially death.

Next steps

For related machinery explainers and troubleshooting topics, continue with the marine machinery knowledge base.

Operational context

For engineers and trainees, purifier room fire should be checked against the maker's manual, the vessel's planned maintenance system and the company's safety procedures. The article gives a working explanation, but onboard action still depends on the exact machinery model, operating condition, alarms and isolation requirements.

Reader checks

• Confirm which system, drawing or manual applies to the equipment before taking action.
• Record symptoms such as pressure, temperature, vibration, noise, leakage or alarm history.
• Escalate defects that affect safety, propulsion, power generation or pollution prevention.

Common mistakes to avoid

A common mistake is treating a single symptom as the full fault. Shipboard machinery problems often involve operating conditions, maintenance history, spares quality and crew handover notes. Use this guide as a starting point, then compare it with the marine machinery knowledge base for related machinery topics.

How to use this guide

Use this article as a practical starting point for purifier room fire, then check the details against the vessel, company procedure, local port requirement or training route that applies to your case. Maritime topics often look simple on paper, but the correct decision can change with ship type, rank, cargo, machinery condition, weather, route and documentation status.

If the topic affects safety, compliance, maintenance or career decisions, keep notes of the source, date and any follow-up action needed. Readers who need a wider view can continue through the marine machinery knowledge base and connect this page with related explanations before acting.

For onboard teams, the best use is during preparation, handover or review: identify the relevant point, compare it with the vessel's actual condition, and decide who must approve the next action.

Market context for high-compliance maritime regions

For readers in the United States, United Kingdom, Canada, Australia, Singapore and Europe, What to Do in Case of Purifier Room Fire? should be compared with technical procurement, maintenance planning, vessel data, port operations and fleet compliance. The same maritime topic can have different practical meaning under USCG, MCA, Transport Canada, AMSA, MPA Singapore and European authority expectations.

Use the market links below to compare how mature shipping markets evaluate maritime technology, equipment, fleet tools and supplier decisions.

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