Recently asked questions in Kochi mmd and Class 2 Numerical solutions

Search

11 October 2018

56.Hypermist system

October 11, 2018 Posted by AK No comments

Protected area

Boiler
Main engine
Aux. engine no. 1,2 & 3
F.O. purifier
Incinerator


Modes of release


Automatic release:The system can be released automatically from the fire detecting system, when two detectors in the same loop are activated at the same time (smoke and flame)

Semi-automatic release:The system can be operated from the valve operating panel located in the fire control station.By activating the push~button for the actual section the dedicated section valve will open, and the pump unit will start up, and extinguishing will begin.

Manual release: Manual release is carried out by operating a push~button, located nearby the protected area inside the release boxes marked with "Release Watermist" signs.

Testing

Precondition: Close main closing valve pos. 14 to prevent watermist coming out in the protected area during the release of the section valve.

Test Procedure:

1.Activate the Smoke detector for Boiler Observe Alarm on fire detection panel is activated.
2.Activate the Flame detector for Boiler. Observe Section valve for Boiler section is activated and High pressure pump starts. Audible and visual alarm units are activated
3.Stop high pressure pump and close section valve by resetting alarm fire panel. Observe Solenoid valve Boiler. Is deactivated. Audible and visual alarms are off. Pump is off.

0 comments:

Post a Comment