<4. Applications>
4-1
TI 11M12A01-01E
Mar. 14, 2017-00All Right Reserved Copyright © 2004, Yokogawa Electric Corporation
4. Applications
This section takes up typical application examples for the zirconia oxygen analyzer. These
individual applications are structured as follows.
Application examples: Overview of individual devices, and sample points.
Sample gas condition examples: Examples of sample gas conditions, and block diagrams and
type numbers for zirconia oxygen analyzer systems to be used
under those conditions.
4.1 Boiler
(1) Package boiler
This is the most common application. Although the system is generally used for combustion
monitoring, there are also cases in which it will be used for VVVF or other such combustion
control schemes.
Sample point System type Detector Objective
Boiler furnace outlet or
economizer outlet
L1, (L2) D1, (D2) Combustion monitoring
Package boiler
Gas temperature: 150 to 300°C
Gas pressure: ±0.5 kPa
Dust: ≦1 g/Nm
3
Fuel: Fuel oil, kerosene, or gas
F0401.ai
View Port
Main Tubing
Wall Tubing
Blower
Burner
Burner
Steam Drum
Water Drum
Soot Blower Nozzle
Gas flow
Flame
Combustion
chamber
Side View
Front View
Top View
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