Teledyne 9700 instruction manual Flue Gas Analysis System, Introduction, Overview

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Flue Gas Analysis System

General Information

Introduction

1 Overview

The Model 9700 analyzer system (see Figure 1) is an integrally housed combination of analyzers designed to continuously monitor the two primary components of flue gas which are the best indicators of combus- tion efficiency and safe operation. Through use of volumetric percentage measurements of oxygen and combustibles, it is possible to optimize the air-fuel ratio and approach the idealized condition of stoichiometric com- bustion. Additionally, monitoring of combustibles will assure a safe margin to prevent combustible mixtures from approaching LEL levels as a result of a malfunction, before boiler startup, etc. When necessary, appropriate regulation of the combustion process can be made to reduce nitrogen oxide (NOx) emissions and resultant air pollution.

The system is composed of the necessary components to educt a flue gas sample, condition it for analysis, and monitor on a continuous basis the percentage content of oxygen and combustible gases (see Figure 2).

When required, multipoint configurations, which automatically monitor from two to twelve points on a time shared basis, are available. Multipoint sequencing utilizes a stepping switch/timer which operates in conjunction with a solenoid valve on each sample input to control the time duration of the inflow. Indicating lights plus a recorder output show which sample points are being monitored at any given time. Override switches can be operated to omit any number of sample points from the monitoring program. If necessary, time delays can prevent the inadvertent tripping of alarms during the sample sequencing.

TELEDYNE BROWN ENGINEERING

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Analytical Instruments

 

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Contents Model Flue Gas Analysis System Important Notice WarrantyTable of Contents Maintenance & Troubleshooting Overview Flue Gas Analysis SystemIntroduction Sample Conditioning General InformationSample Conditioning Oxygen Analyzer Section Standard FeaturesOxygen Analyzer Section General Information Optional Features General Information Combustible Gas Analyzer Section Combustible Gas Analyzer SectionGeneral Information Compound LEL Response Factor Operating Controls and Indicators Analog Output Recessed Secondary ControlsMeter Trim Current MAX Load Output Impedance Oxygen Analyzer Theory of OperationTheory of Operation Combustible Analyzer Detector Flue Gas Analysis System Theory of Operation Power InstallationOutput Signal Voltage Electrical ConnectionsInterconnection Diagram Output Signal Current Alarm and/or Control CircuitryInstallation Startup of Oxygen Analyzer OperationPreliminary Meter ZeroingInitial Calibration and Equilibration Flue Gas Analysis System Operational Calibration Startup of Combustibles Analyzer ProcedureRoutine Operational Calibration Operation System Startup Span GasAnalyzer Startup Sample System StartupOperation Maintenance Flue Gas Analysis System Maintenance & TroubleshootingRoutine Maintenance Oxygen Cell ReplacementCell Warranty Water Strainer Spray NozzleFilter Condensate Trap Combustible SensorGeneral TroubleshootingPump Oxygen Analyzer .2.2.1 Inability to Calibrate Inability to Calibrate Combustible Analyzer SectionNo Alarm With High Gas Level Lamp Failure Appendix SpecificationsOxygen Analysis Section Appendix ModelModel 9700 System Standard Unit Only Recommended Spare Parts ListReference Drawings Response of Combustible Sensor to Various Gases Appendix Model Supporting Equipment for Flue Gas Analysis Systems Figure A-1 Typical Dry Probe Repair General Maintenance for CC-2B Series PumpsMaintenance Appendix Model Flue Gas Analysis System Figure A-3 Pump Assembly Flue Gas Analysis System Figure A-4 Replacing Flex-I-Liner Replacing the Liner in the Flex-I-Liner PumpFlue Gas Analysis System