CONTROL SYSTEMSHazardous area control systems for the

petrochemical and refining industries

Customised for the market

Clyde Bergemann Ltd, Scotland (CBS) offers a range

of on-load cleaning technologies for the removal of

particulate build up on the outside of heat exchange

surfaces. A key part of this technology is the control

and monitoring of the sootblower motor and limit

switches as well as the sootblower system pipework

valves and instrumentation. The flexibility of our design

approach allows us to cost effectively custom build

systems to meet our customers’ requirements and

project specifications. We have provided sootblower

control systems to petrochemical and refinery sites

worldwide, e.g. to Russia with the requirement for

GOST certification and ambient temperatures of

-49OC and to Saudi Arabia with ambient temperature

of +50OC.

In the petrochemical and refining industries, we can

supply local sootblower control panels suitable for

use in any hazardous area environment. Typical area

classifications where our control panels are located

would be in a NEC Class 1 Division 2 gas group C&D

T3 or ATEX Zone 2 gas group IIC T3. All our control

panels are supplied with the relevant hazardous area

certification confirming the equipment is suitable for

use in that environment.

Design basis

The sootblower control panel generally comprises

a PLC (Programmable Logic Controller), power

transformer, three phase motor contactors, safety

interlocks and field wiring terminals. The range of

controls panels we supply includes:

- ATEX combination EExd (flameproof) and EExe

(increased safety) panels with the sparking

equipment housed in the EExd panel and the

field terminals housed in the EExe panel

- ATEX ExnP (simplified) purge panel for Zone 2

- Z-type purged panel with a NEMA 4X stainless

steel enclosure, manufactured in line with

NFPA-496

- Safe area IP65 panel located in a non-hazardous

Area

Features

Explosion protection standards including: ATEX,

CENELEC, IEC, NEC, GOST, CCOE, NFPA

Specific design to customer requirements

Enclosures can be combined (modular system)

Different materials available for enclosures

Multiple operating mode (local / remote / DCS)

User interface via push buttons or a graphical HMI

(Human Machine Interface).

Manufactured to meet outdoor, coastal, refinery

environments

Communication to DCS (Distributed Control

System) via volt free contacts for start / stop and

common alarms or via Modbus, Profibus or DH+

protocols

Intrinsically Safe (IS) barriers fitted to the control

panel to provide IS circuits for using sootblower

proximity switches and IS steam pipework

instrumentation if required.

Industry standard PLC’s for reliable operation and

common understanding of control logic and PLC

program.

Flexible modular design to meet customers

immediate and future requirements

•

•••

Clyde Bergemann Ltd

47 Broad Street, Bridgeton T: +44 141 550 5400 Website: www.cbpg.comGlasgow G40 2QR F: +44 141 550 5402 eMail: info@clydebergemann.co.ukScotland UK

Full Factory Acceptance Test (FAT)

Our internal FAT area offers full testing facilities

with mimic panels to simulate complete operating

sequence including associated pipeline valves and

instrumentation.

Site Services

We offer a range of site services for control systems

including installation, commissioning and maintenance.

Our experienced site engineers are fully trained to

perform in accordance with international standards.

Documentation

A full documentation package is provided which will

include:

- logic/flow diagram - internal/external layouts

- wiring schematics - certification

••

•

•

•

•

•

CB-

2017

/11.

We

rese

rve

the

right

to

mak

e te

chni

cal c

hang

es w

ithou

t no

tice.