Web-based status monitoring of fire-extinguishing systems for oil tanks

Overview

Sprinkler head with sprinkler bulbs  

Sprinkler bulbs make sure that the extinguishing agent only emerges from the sprinkler head

  • The Dutch company Saval BV has designed a special fire-extinguishing system for floating-roof tanks used to store fossil raw materials.
  • A central solution, which monitors two digital signals, provides information on the status of the fire protection system at all times.
  • Controllers and I/O modules from the Inline block from Phoenix Contact enable web-based status monitoring of the system.
  • The visualization indicates the status of the pressure and level switches as well as the power supply and generates a corresponding alarm in the event of malfunctions.

Customer profile

Saval BV headquarters in the Dutch city of Breda  

Automatic fire-extinguishing systems are developed and produced in Breda (image source: Saval BV)

Saval BV, located in the Dutch city of Breda, belongs to the SK FireSafety Group. The company specializes in fire safety products and systems for industry and has more than 85 years' experience.

At the headquarters in Breda, over 200 employees develop, produce, and maintain a variety of automatic fire-locating and fire-extinguishing systems.

Application

Containers for extinguishing agent at the rim of the floating roof  

The containers for extinguishing agent are installed at the rim of the floating roof (image source: Saval BV)

It is essential that crude oil and other fossil raw materials are stored and treated safely, not least because of the considerable explosion hazard. In the case of commonly used fixed-roof tanks, so-called tank breathing occurs between the material to be stored and the fixed roof. As well as limiting the stored material, this also results in a greater explosion hazard.

Floating-roof tanks, the roof of which is not fixed but rather floats on the stored liquid, represent one alternative. There is a risk with these tanks, however, that gas escaping through the seal could be ignited by static electricity. If the fire remains undiscovered, it can quickly develop into an uncontrollable fire source.

The fire-extinguishing system developed by Saval consists of individual fire-extinguishing containers, to which a large number of sprinkler heads are connected. These ensure that the flames are extinguished in a targeted manner and that the extinguishing agent is not sprayed across large areas of the floating-roof seal.

Solution

Modular PROFINET controller with intrinsically safe I/O modules from the Inline Ex i series  

SK 3100 EXD container with a modular PROFINET controller and intrinsically safe I/O modules

In the automated fire-extinguishing system, two digital signals, which provide information on the status of the fire protection system, are monitored. According to the concept for the central solution, the digital signals are transmitted via cables to a monitoring panel installed in the non-hazardous area.

The SK 3000 monitoring panel consists of a modular ILC 171 ETH controller and the intrinsically safe Ex i I/O modules from the Inline product range specifically developed for potentially explosive areas.

This requires safe electrical isolation between the Ex i and the standard Inline modules. The intrinsically safe terminal blocks are reliably supplied with power by a special Inline module. They can be added seamlessly to the local Inline bus of the ILC 171 ETH and record the digital signals from the level and pressure switches.

SK 3000 monitoring panel with modular ILC 330 PN controller and WLAN 5100 Wireless LAN module  

SK 3000 monitoring panel with modular controller and Wireless LAN module

Signals are forwarded via PROFINET and Wireless LAN

If the oil tanks have a communication infrastructure that is already in use, it can be extremely difficult to lay new cable routes. With this in mind, Saval has designed a distributed solution - the SK 3100 protective container in protection classes IP52 to IP65.

The container contains a modular PROFINET controller from the Inline product range with intrinsically safe Inline modules. Each distributed SK 3100 station monitors up to four fire-extinguishing systems. The signals are forwarded via Wireless LAN to a centrally installed SK 3000 monitoring panel in which a modular ILC 330 PN high-performance controller is installed. WLAN 5100 wireless modules from Phoenix Contact are used to transmit the data.

The devices satisfy the IEEE 802.11e standard and enable the transmission of the PROFINET protocol, which means that the two Inline controllers can communicate via the PROFINET protocol. The web-based WebVisit visualization software from Phoenix Contact is used to monitor the solution. As such, the controller must have an integrated web server. In order to access the visualization, all that is needed is the IP address of the controller. The data is then displayed on an operation and monitoring device.

Summary

The fire-extinguishing system for oil tanks with web-based status monitoring developed by Saval detects and locates fires quickly and safely. A large number of sprinkler heads, which are connected to the individual containers for extinguishing agent, ensure that the flames are extinguished in a targeted manner.

The visualization reliably indicates the status of the pressure and level switches as well as the power supply to the control system at all times. It also generates a corresponding alarm in the event of malfunctions. This effectively prevents fires and the associated explosion hazard when storing crude oil and other fossil raw materials.

Products

DescriptionTypeOrder No.
Inline controller with the option of communicating via PROFINET and Modbus/TCP. Support for Ethernet-based Modbus/TCP and PROFINET protocolsILC 171 ETH 2TX2700975
Inline controller with PROFINET interfaces for coupling to other controllers and systems, with programming options according to IEC 61131-3ILC 330 PN2988191
WLAN access point, client, WLAN 802.11 a, b, g, n, frequency 2.4 GHz, 5 GHz, IP20WLAN 5100 wireless module2700718
PROFINET bus coupler, 8 inputs (24 V DC), 4 outputs (24 V DC), 500 mA, complete with I/O connectorsIL PN BK DI8 DO4 2TX-PAC2703994
Modular Inline feed-in terminal for supplying intrinsically safe I/O terminals with powerIB IL EX-IS PWR IN-PAC2869910
Intrinsically safe Inline digital I/O terminal, 4 configurable input/output channels, complete with accessoriesIB IL EX-IS DIO 4/NAM-PAC2869911
DescriptionTypeOrder No.
Inline controller with the option of communicating via PROFINET and Modbus/TCP. Support for Ethernet-based Modbus/TCP and PROFINET protocolsILC 171 ETH 2TX
Inline controller with PROFINET interfaces for coupling to other controllers and systems, with programming options according to IEC 61131-3ILC 330 PN
WLAN access point, client, WLAN 802.11 a, b, g, n, frequency 2.4 GHz, 5 GHz, IP20WLAN 5100 wireless module
PROFINET bus coupler, 8 inputs (24 V DC), 4 outputs (24 V DC), 500 mA, complete with I/O connectorsIL PN BK DI8 DO4 2TX-PAC
Modular Inline feed-in terminal for supplying intrinsically safe I/O terminals with powerIB IL EX-IS PWR IN-PAC
Intrinsically safe Inline digital I/O terminal, 4 configurable input/output channels, complete with accessoriesIB IL EX-IS DIO 4/NAM-PAC

PHOENIX CONTACT PTY Ltd

Unit 7, 2-8 South Street
Rydalmere NSW 2116

Fax: 1300 723 399
Customer Service Hotline
1300 786 411

Referrer:

This website uses cookies, by continuing to browse, you agree to our cookie policy. Read our privacy policy for more information.

Close