smart solutions for combustion and environment

Compressed Air230/115 VAC

Ex-p Control Unit

Control Room

Ex-Zone

Sensor

Furnace

Cooling Air

System PC withThermography Monitor

and Live Video Image

VideoMonitor(Option)

Cooling Water

Fiber Optic Cable

Video-based Thermography for Combustion Processes

The Thermography Analysis System

The system comprises the components of the video system plus the system computer with software modules. It operates as a spatial optical pyrometer on the basis of image data processing and offers, in ad-dition to the video system:

●● Temperature determination of each visible image point of the video sensor

●● Thermal analysis of the local temperature distribution

●● Temperature definition within freely definable measuring window and lines (ROI = Region of Interest / LOI = Line Of Interest).

●● Analysis of thermal samples to identify anom-alies in the combustion process

All data of the thermography system can be transmitted to the process control system via a standardized data interface.

Video Monitoring ThermographyThe Field Components

●● Ex-Sensor with adjustable support, flange, and gas-tight sealing

●● Ex-p control unit●● Connection to Control Room: Fibre Optic

Cable.

The Control Room Equipment

●● Linux based system computer for tempera-ture calculation, thermography presentation

●● Video monitor for online colour display

The Video System

The basic system comprises the above-men-tioned system components, without system computer. It enables visual monitoring through real-time colour video display.

The Video-based D-VTA 200 EX Thermography System

is a modular system for monitoring industrial high temperature processes. Intelligent sensors allow contactless, optical and thermal online ana-lysis of processes in the combustion chamber.Applications include:

●● Petrochemical Industry and Refineries:Thermal Crackers and HeatersSteam ReformersVisualisation of FlamesDetection of Hot Spots and local overheating

●● Steel Industry:Blast Furnace Top ControlCombustion Visualisation and Control in hazardous area.

The Sensors

have been specially developed for the harsh working conditions in hazardous areas (ATEX Zone 1). The sensor housing contains an indu-strial CCD camera. The slim water cooled sensor shaft (043mm) minimises the mechanical stress (abrasive dust) and the thermal influence on the sensor parts in the combustion chamber.The optical system is protected against mecha-nical and thermal damage by sapphire glass at the sensor tip, in addition to air purging. As no moving parts (no mirrors, prisms or motors) are located in the process-oriented area, the sensor achieves a high availability with minimum service requirement.

D-VTA 200 Ex System in a Cracker

Refinery Cracker Chemical Industry

Ex-pControl

Control RoomFurnace

Sensor

Video Monitor(Option)

Thermography-Monitor

Digital Video- and Data Link(Fiber Optic Cable)

System PC

Compressed Airfor Pressurized Enclosure

Cooling Water

230/115 VAC

Ex-Zone

CoolingAir

Ex-Approval, ATEX Zone 1

Approval no. ZELM 09 ATEX 5407 X, II 2 G Ex epx II T4

Video system PAL picture elements: 752(H) X 582(V), fixed focus

Thermography from total radiation

Temperature range 1000°C–2000°C

Optical alignment Sensor 0°; axially-parallel to sensor axis

Optical field of view

Sensor 0°; horizontal 72°; vertical 54°

Data interfaces on the system PC (Thermography System)

RS232, RS422, RS485: ASCII, MODBUS, Siemens RK512; Ethernet: TCP/IP: FTP, MODBUS

Auxillary energy PC: 115 V...230V / 50 Hz or 60 Hz, < 1.000 VA; Field components: 115 V / 60 Hz or 230 V / 50 Hz, < 200 VA

Max. temperature at sensor tip

1.400°C (Water-cooled sensor)

Ambient temperature

Sensor: -10°C…60°C; Ex-p cabinet: -20°c…40°C (optional +55°C)

Material Sensor: stainless steel 1.4571 / 1.4841; Ex-p cabinet: glass fibre reinforced polyester

Dimensions Diameter of sensor tip: 43 mm

Immersion depth in combustion chamber

max. 600 mm from welding plate

Space requirement for sensor

1000 X 500 X 800 mm (LxWxH)

Ex-p cabinet 250 x 400 x 120 mm (LxWxH)

System PC 19" industrial housing, 4HE, depth 450 mm

Weights Sensor: 20 kg; Ex-p cabinet 15 kg

Cooling water volume

350 l/h, 1,5…8 barg

Cooling water temperature

Inlet:< 35°C, Outlet: Temperature increase <10°C

Cooling water quality

Clean, chemically neutral, non-corrosive, Hardness: <5°dH / <28 mMol/l

Compressed air volume

≥30 Nm³/h

Inertgas volume 42 l/min (first purge) none (continuous operation)"

Technical DataAnalysis System

D-VTA 200 Ex Sensor

Steel Industry Blast Furnace Steam Reformer

Thermography scree

smart solutions for combustion and environment

DURAG India

DURAG Japan

DURAG Brazil

DURAG GROUP GermanyDURAG Italy

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DURAG UKSMITSVONK Netherlands

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G

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