Introduction
Integrated automatic fire-extinguishing system (AFES) is
intended for fire protection automation for pump stations and tank
farms.
Protected Facilities
- reservoirs of up to 50000 m3;
- pump station premises.
Actuated equipment
- fire water tanks;
- foam dosing tanks;
- water and foam supply pumps;
- valves;
- light and audio alarm systems;
Main Features
- reception of electrical signals from manual and automatic fire
detectors with indication of number of the activated sensor or fire
loop;
- monitoring of manual annunciator loops operability along their
whole length with automatic detection of a break or short
circuit;
- automatic release of fire extinguishing agent to the protected
object (actuation of the necessary pumps and opening of shutoff
valves);
- delaying of fire extinguishing agent release to the premises
where people are possibly located;
- shutdown of automatic actuation of the fire fighting equipment
with keeping the possibility of local (manual) actuation;
- automatic monitoring of operability of operational unit
electric circuits, circuits of the warning system and sensors of
technological parameters;
- automatic monitoring of levels in fire water and foamer
tanks;
- switching of warning (light/audio) of fire at a protected
object;
- visualization of all operating procedures, state of
annunciators or fire loops, current values of monitored parameters
on operator's workstation screen or fire post operator's
panel;
- storage and displaying of operations and history logs for the
indicated period at operator's workstation or operator's
panel.
AFES has centralized architecture on the basis of PLC with CPU
hot redundancy feature. Redundant data communication channels with
conversion to optical fiber medium are used to provide
communication between system elements. Scanning of fire detectors
and annunciators is realized on the basis of dust-ignition-proof
construction MS-AP signalling devices in Exd case or ia level
circuit, which allows for considerable reduction of cabling due to
approximation of intellect to a controlled facility. Upper level or
the system is realized on the bases of redundant input/output
servers.
Benefits
The system can be completed by modules allowing solving
different fire protection tasks. Additional protected zones and
fire fighting algorithm can be added without PLC reprogramming,
using service functions provided by the system.
The system components provide for additional operation modes
(simulation, testing and masking) and other features, such as
unauthorized access protection and event logging to monitor
personnel actions.
AFES features compatibility with an array of industrial
controllers from various vendors.
Block Diagram
