Applications; Boiler; Package Boiler - YOKOGAWA EXAxt ZR22G Technical Information

4.

Applications

This section takes up typical application examples for the zirconia oxygen analyzer. These
individual applications are structured as follows.
Application examples:
Sample gas condition examples: Examples of sample gas conditions, and block diagrams and
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
Boiler furnace outlet or
economizer outlet
Wall Tubing
Top View
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Overview of individual devices, and sample points.
type numbers for zirconia oxygen analyzer systems to be used
under those conditions.
System type
L1, (L2)
View Port
Gas flow
Combustion
chamber
Main Tubing
Flame
Blower
Burner
Steam Drum
Water Drum
Front View
Detector
D1, (D2)
Package boiler
Gas temperature: 150 to 300°C
Gas pressure: ±0.5 kPa
Dust: ≦1 g/Nm
Fuel: Fuel oil, kerosene, or gas
Burner
Side View
<4. Applications>
Objective
Combustion monitoring
3
Soot Blower Nozzle
F0401.ai
TI 11M12A01-01E
4-1
Mar. 14, 2017-00