ABB Stack Flow Master - The Air Quality and Emissions Show 2015
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Transcript ABB Stack Flow Master - The Air Quality and Emissions Show 2015
Steve Donnelly - March 2013
Integrating flow measurement
into ABB CEMS
CEMS Standards
Flow metering
Stack emissions subject to legislation for many years
Output in KTons/year has always been required, but standards did
not specify how to establish
Flow measurement sometimes but not always used – many mass
flows are calculated
New standard will give requirements – and gives guidance on flow metering techniques
ABB Company Confidential
CEMS Standards
Europe
2001…
LCPD, WID ……..IED
EN 14181
Relevant European standard for on-going quality
assurance of CEMS
EN 15267-3
Performance specifications and test procedures for CEMS
Must now measure the mass of pollutants released, not just the concentration
EN ISO16911
Will specify the requirements for flow measurement
ABB Company Confidential
FPD580 StackFlowMaster
First choice for CEMS flow metering
Uses proven Torbar averaging pitot flow
metering technology.
Assures compliance
with new European & US EPA regulations
Optimises plant running hours
Simplifies installation
Reduces cost of ownership
Integrates into new and existing CEMS
ABB Company Confidential
FPD580 StackFlowMaster
Why use Averaging Pitot for Stack Measurement
Low installation costs
Available in a variety of materials
to suit different processes
Multi-port instrument
Max two stabbings to be cut into stack
(only one if not end supported version)
resistant to effects of changing flow profiles
Reliable, long term solution
no moving parts
no electronics within stack
Low risk of failure in the primary element
ABB Company Confidential
How Averaging Pitot Tubes work
Measures the mean fluid velocity
without the need for traversing
Differential Pressure Output
Connected to DP Measuring Instrument
High
Pressure
Low
Pressure
LP Inner Tube
Upstream HP
sensing holes
Outer Impact
Tube
The ABB averaging pitot:
Multi-port meter across full diameter
‘auto-traverses’
Resultant differential pressure is
proportional to the square of the volume
flow rate
HP Inner Tube
Static LP
pressure point
Upstream HP
sensing holes
ABB Company Confidential
FPD580 StackFlowMaster
Torbar Edge - Better performance and stability
Profiled
flats
Low
Pressure
Tube
Profiled flats around the downstream hole
define the flow separation point
stable pressure area at downstream
tapping
more constant coefficient at high
velocities
very wide turndown
Provides a highly stable flow signal
ABB Company Confidential
FPD580 StackFlowMaster
Torbar Edge – Easier handling
Easier handling for large diameter stacks
probes above 5 metres are in two pieces with centre coupling
simplifies shipping and handling; may simplify installation
ABB Company Confidential
FPD580 StackFlowMaster
Why choose StackFlowMaster?
Averaging pitot tube technology
EN15267-3 & MCERTS approval
enables purchase of complete package from
single supplier/manufacturer
Enables CEMS upgrades
no physical user intervention required
Supply with ABB CEMS analyser
satisfies QAL1 & QAL3 requirements.
Optional automatic zero/span checks
approved under the new standards
to meet the new legislation
Robust for long term use
minimal maintenance
.
ABB Company Confidential
FPD580 StackFlowMaster
Torbar advantages
Easy to install
Robust meter with a long service life
Reduces risk of expensive failures
Stronger construction than those with special
profiles
Offers good quality, stable measurement
Requires only a simple one - or two - stabbing
insertion
Due to unique sensor profile
Special end support designs give greater
integrity
From ABB's many years of experience
ABB Company Confidential
FPD580 StackFlowMaster
FPD585 Flow Probe with Automatic Interface
Torbar probe specifically designed for stacks
25 or 60mm diameter
optional integral RTD
Multivariable transmitter
DP & absolute pressure measurement
with temperature input
remote mounted in interface unit
Automatic interface unit
3 versions
MCERTS pending for automatic zero/span
versions
ABB Company Confidential
FPD580 StackFlowMaster
FPD585 Automatic Interface Variants
Automatic zero/span checking option
No external equipment to be connected
Checks at the push of a button
Optional Enclosure Heater
For ambient temperatures below 0°C
Purging
Recommended for particulate
concentrations > 30mg/m3 and up to 300
mg/m3
ABB Company Confidential
FPD580 StackFlowMaster
Purging
Cleans probe ports using pressurised
air
Enclosure contains multivariable
transmitter for volume or mass flow
measurement
Enclosure contains sequencing
controls/valves for automatic (regular)
purging or on-demand purging
Purge Air
Purge Air
Contaminated
Flue Gas
Purge Air
Data
ABB Company Confidential
FPD580 StackFlowMaster
Key aspects of Installation
8D
Location: Requirements for upstream lengths of stack, expressed in terms of the
actual stack internal diameter D
Minimum upstream straight length is 8D
Minor obstruction (sample probe) OK if > 3D upstream
ABB Company Confidential
FPD580 StackFlowMaster
ABB supplies complete CEMS
Data acquisition and reporting
Mass flow
Dust
O2 combustion
SOx, NOx, CO, HCl, HF, NH3…
ABB Company Confidential
FPD580 StackFlowMaster
Benefits
Wide range of stack temperatures
suitable for stack gas temperatures up to
1200°C
Wide range of stack applications
Incinerator plants, power generators, refineries,
metals processing, cement plants, crematoria
Up to 8m diameter
Handles solid contaminants
Up to 300mg/m3
automatic or manual purging of probe ports
available
ABB Company Confidential
FPD580 StackFlowMaster
Benefits
Handles corrosive contaminants
316L, 321H or alloy 625 sensor
Hastelloy C transmitter diaphragms , PTFE
seals; optional 316 transmitter housing
Easier installation in large diameter stacks
two piece probes with centre coupling
Simplifies handling, transportation, installation
Simplified QAL3 compliance
Automatic option for tx span check
No external equipment required
Simple to size and specify
Intuitive software for selection, sizing and
coding
Auto-updating facilities
ABB Company Confidential
Stands 47 and 48
Steve Donnelly, CEMS specialist
ABB Company Confidential