Teledyne 9700 manuale d’uso

i Flue Gas Analysis System TELEDYNE BROWN ENGINEERING Analytical Instruments P/N M48985 10/27/94 Model 9700 Model 9700 Model 9700 Model 9700 Model 9700 Flue Gas Analysis Flue Gas Analysis Flue Gas Analysis Flue Gas Analysis Flue Gas Analysis System System System System System Instr Instr Instr Instr Instr uction Manual uction Manual uction Manual u[...]

ii Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments Copyright © 1994 Teledyne Brown Engineering Analytical Instruments All Rights Reserved. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or com- puter language in whole or in part, in any form or by[...]

iii Flue Gas Analysis System TELEDYNE BROWN ENGINEERING Analytical Instruments Table of Contents 1 Introduction 1.1 General .............................................................................. 1 1.2 Sample Conditioning .......................................................... 2 1.3 Oxygen Analyzer Section ................................[...]

iv Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 4. 3 System Startup .................................................................. 7 4.3.1 Analyzer Startup ..................................................... 7 4.3.2 Sample System Startup .......................................... 7 5 Maintenance & Troubleshooting 5.1 Maint[...]

1 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments 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 s[...]

2 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 2 Sample Conditioning When the flue gas is drawn into the analyzer system, it enters at a relatively high temperature and carries a significant content of moisture, dirt and corrosives. The sample stream is preconditioned to cool the gases and remove contaminants. Th[...]

3 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments Next, the gas and water mixture enter the pump. The pump contains no valves or packing and will handle the dirtiest of samples without any detrimental effect Exiting the pump under positive pressure, the sample mixture is forced through a mixer which co[...]

4 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 3 Oxygen Analyzer Section The analysis system (see Figure 3) employs a Model 326B Analyzer which features a TBE/AI unique, patented Micro-Fuel Cell oxygen sensor. This electrochemical transducer provides an electrical signal that is directly proportional (and specifi[...]

5 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments • Integral Meter Readout The analyzer is equipped with a 5" panel meter for direct readout of the analysis. A linear scale (mirror equipped to eliminate parallax) promotes reliable, accurate readout of the analysis at any point on the scale. Reso[...]

6 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments To protect the Micro-Fuel Cell against damage from low ambient temperatures and reduce the range required of the compensation circuit, the analyzer is equipped with a thermostatically controlled heating system that will not permit the interior of the instrument to dr[...]

7 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments 3.2 Optional Features The following optional features are available with the system. • Integral Alarm Circuitry One (Model 326B-1) or two (Model 326B-2) adjustable, full- scale alarm and/or control circuits are available. Control over an external circ[...]

8 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments • E-to-I Converter A voltage (E) to current (I) conversion of the output signal generated by the analyzer is available. This conversion allows I (current) to P (pneumatic) devices, as well as low-impedance current-operated indicating and/or recording and controllin[...]

9 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments 4 Combustible Gas Analyzer Section The combustibles analyzer (see Figure 4) is a compact detector for reliably sensing all combustible gases. The analyzer consists of two parts: (1) The control unit housing the calibration controls, analyzer circuitry, [...]

10 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments The sample is sent through one side (SAMP) of twin indicating flowmeters. Since it is necessary that there is sufficient oxygen in the sample being analyzed to insure full combustion of any combustible gases present, the sample is blended, or diluted, with an equal [...]

11 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments TABLE 1: Detector Response To GASES COMPOUND LEL* RESPONSE FACTOR Methane 5.0 1.00 Hydrogen 4.0 0.86 Carbon Monoxide 12.5 0.32 Ethane 3.0 1.20 Ethylene 2.7 1.26 Acetylene 0.5 1.39 Propane 2.2 1.42 Propylene 2.0 1.33 Butane 1.9 1.54 Hexane 1.1 1.50 Cycl[...]

12 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 4.1 Operating Controls and Indicators • The POWER toggle switch is used to turn the combustible gas analyzer ON and OFF. • The meter displays the gas concentration at the detection point as a percentage of the combustible gas and is graduated from 0–5% combust[...]

13 Flue Gas Analysis System General Information TELEDYNE BROWN ENGINEERING Analytical Instruments 4.2 Recessed Secondary Controls NOTE: The recessed potentiometric controls are provided for calibration purposes. They should not be changed once calibration is estab- lished. • The SPAN control adjusts for manufacturing variations in sensitivity bet[...]

14 General Information Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments CURRENT MAX LOAD OUTPUT IMPEDANCE (mA) (Ohms) 4–20 1K NOTE: The remote meter or recorder should have an input impedance less than the indicated values.[...]

2-1 Flue Gas Analysis System Theory of Operation 2 TELEDYNE BROWN ENGINEERING Analytical Instruments Theory of Operation 2.1 Oxygen Analyzer The cathode of the oxygen cell sensor is connected to electrical ground, while the anode is connected to input amplifier A1., a current-to- voltage transducer. The output voltage from A1 is equal to the input [...]

2-2 2 Theory of Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments electrolysis. Only after the oxygen is reduced to a low enough concentra- tion can the cell be used to measure the flue gas sample. The signal from the first amplification stage is connected to a non- inverting second stage (A2) which contains a thermistor in its[...]

2-3 Flue Gas Analysis System Theory of Operation 2 TELEDYNE BROWN ENGINEERING Analytical Instruments 2.2 Combustible Analyzer The detector assembly and resistors R7 and R8 form a Wheatstone Bridge. The signal for the bridge is taken from the junction of R7 and R8 for the reference signal which is applied to A1—A3, and from the junction of the mea[...]

2-4 2 Theory of Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments An optional CAUTION alarm circuit utilizes potentiometer P4 to establish the setpoint. When the setting of P4 is exceeded. transistor Q2 is turned on and relay K1 is energized, resulting in an alarm. The optional FAILURE alarm circuit is set up so that if the det[...]

2-5 Flue Gas Analysis System Theory of Operation 2 TELEDYNE BROWN ENGINEERING Analytical Instruments The temperature of the active bead will be influenced by other factors such as initial gas temperature, gas thermal conductivity, flow rates and the temperature of its housing. The reference bead, having similar electrical and thermal properties and[...]

2-6 2 Theory of Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments[...]

3-1 Flue Gas Analysis System Installation 3 TELEDYNE BROWN ENGINEERING Analytical Instruments Installation 3.1 Electrical Connections All wiring is to be connected to the barrier type terminal strips on the back plate assembly within the analyzer. Refer to Figure 6, Interconnection Diagram, and be certain that the wiring installation complies with [...]

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3-3 Flue Gas Analysis System Installation 3 TELEDYNE BROWN ENGINEERING Analytical Instruments 3.1.3 Alarm and/or Control Circuitry Models having a -1 or -2 as part of their model number are equipped with single (-1) or double (-2) alarm and/or control circuits. The SPDT form "C" (NC/C/NO) contacts of the relay (or relays) are available on[...]

3-4 3 Installation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments[...]

4-1 Flue Gas Analysis System Operation 4 TELEDYNE BROWN ENGINEERING Analytical Instruments Operation 4.1 Startup of Oxygen Analyzer 4.1.1 Preliminary Before applying power to the instrument, TBE/AI suggests that the electrical wiring installation be checked against the interconnection dia- gram (see Figure 6), especially if the installation has bee[...]

4-2 4 Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments The Micro-Fuel Cell is supplied separately in a controlled atmosphere package and must be installed prior to startup. To install the cell, use the following procedure: Note: Do not open the sealed package until the system is to be started and a flue gas sample is available[...]

4-3 Flue Gas Analysis System Operation 4 TELEDYNE BROWN ENGINEERING Analytical Instruments If, on the other hand, reliable analysis, free of instrument distortion, is required from the very onset of operation, TBE/AI recommends a 24 hour run-in period before operational calibration and service . In either case, emlploy the following procedure: (1) [...]

4-4 4 Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 4.1.5 Operational Calibration After the equilibration period following the installation of any new cell, or whenever it is desirable to recheck the calibration of the instru- ment, use the following calibration procedure: (1) Place the RANGE selector switch on the 0+25% Po[...]

4-5 Flue Gas Analysis System Operation 4 TELEDYNE BROWN ENGINEERING Analytical Instruments 4.1.6 Routine Operational Calibration Span calibration should be checked every two to four weeks on a routine basis. Whenever there is the slightest suspicion of abnormal perfor- mance, an inspection of the possible trouble should be made, followed by span ca[...]

4-6 4 Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments (6) After air has been flowing for a couple of minutes, adjust the ZERO control on the control unit (use the small screwdriver supplied) until the meter pointer lines up with the zero mark on the dial (be sure that the mechanical zero of the meter is first adjusted with th[...]

4-7 Flue Gas Analysis System Operation 4 TELEDYNE BROWN ENGINEERING Analytical Instruments 4.2.2 Span Gas It is recommended that the span gas have a concentration of 4.0–4.8% methane or other desired combustible gas with the balance being nitrogen. Note: It is important that the dilution air flow is never turned off during operation or calibratio[...]

4-8 4 Operation Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments[...]

5-1 Flue Gas Anal ysis System Maintenance & T ro u bleshooting 5 TELEDYNE BROWN ENGINEERING Analytical Instruments Maintenance & T roub leshooting 5.1 Maintenance 5.1.1 Routine Maintenance No moving parts other than the meter movement and the relay con- tacts are contained in the analyzers. Periodic service, therefore, other than oxygen cel[...]

5-2 5 Maintenance & T ro u bleshooting Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments Note: Do not over-order or stockpile Micro-Fuel Cells. Only one cell per instrument should be kept in reserve. When installing the oxygen cell in the probe housing, make certain that the shorting clip is re- moved and that the cell membrane is fa[...]

5-3 Flue Gas Anal ysis System Maintenance & T ro u bleshooting 5 TELEDYNE BROWN ENGINEERING Analytical Instruments 5.1.4 Spray Nozzle It will be necessary to clean the mineral deposits from the spray nozzle periodically (see Figure 1). If water flow through the system dimin- ishes significantly, it is an indication that the nozzle is plugged. T[...]

5-4 5 Maintenance & T ro u bleshooting Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 5.1.8 Pump The pump (shown in Figure 1) uses a flexible Nordel liner which is actuated by a roller on an eccentric. This liner requires oiling weekly. The pump is equipped with an oiler which holds a large supply of oil. Use the following procedu[...]

5-5 Flue Gas Anal ysis System Maintenance & T ro u bleshooting 5 TELEDYNE BROWN ENGINEERING Analytical Instruments When subjecting the analyzer circuits to checkout, it is appropriate to first check the power supplies for correct output. If voltages are incorrect, then take corrective action with power supply components . 5.2.2 Oxygen Analyzer [...]

5-6 5 Maintenance & T ro u bleshooting Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments The best way to check Q1 is to remove it, then check it, or substitute a replacement . The meter drive circuitry, as shown on Dwg. B-l0913, is straightforward and relatively simple to follow. If any troubles occur in this circuitry, consult the s[...]

5-7 Flue Gas Anal ysis System Maintenance & T ro u bleshooting 5 TELEDYNE BROWN ENGINEERING Analytical Instruments original detector is probably defective and requires replacement. If problems still occur in the detector circuit, then the dummy sensor will give a signal that can be tracked through the system. • Measure the voltage at the tiep[...]

5-8 5 Maintenance & T ro u bleshooting Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments 5.2.3.3 Lamp Failure For failure in any circuit involving a lamp, always check the lamp for failure before embarking upon more involved diagnostic checkout. The lamps are the most failure-prone components of the system .[...]

A-1 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments Appendix Specifications SYSTEM Operating Power: 115 VAC, 50/60 Hz, single phase (other voltages available as option) Power Consumption: 6 A Operating Temperature: 32 deg F to 125 deg F (0–52 deg C) (Optional auxiliary heating available for operation in below [...]

A-2 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments OXYGEN ANALYSIS SECTION Ranges: 0–5%, 0–10%, 0–25% O 2 Sensitivity: 0.5% of full scale Accuracy: +/- 2% of full scale at const. temp. +/- 5% of full scale across temp. range Response Time: 90% of O 2 in 45–60 seconds Calibration: Air Cooling Water: 10–100 psi, 1 / 4[...]

A-3 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments Recommended Spare Parts List PART NO. DESCRIPTION QTY F-77 Fuse, Tvpe 3AG, 6-1/4A, Slo-Blo 5 S-81 Triac, G. E. #SC45B 1 T-199 Thermoswitch, Fenwall #32410-2 (130 deg F) 1 T-267 Thermoswitch, H-B #7920A (85 deg F) 1 H-2 Heater, Vulcan #1208 1 H-28 Heater, Chroma[...]

A-4 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments Orders should be sent to: Teledyne Brown Engineering Analytical Instruments 16830 Chestnut Street P.O. Box 1580 City of Industry, CA 91749-1580 U.S.A. Telephones (818) 961-9221 (213) 288-7181 TWX (910) 584-1887 TDYANYL COID Reference Drawings B-10913 Schematic Diagram — Oxy[...]

A-5 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments Response of Combustible Sensor to Various Gases Response factors have been determined to relate the sensor output of a specific compound to the output obtained using methane. A list of some typical compounds is given in Table 1 along with their LEL (Lower Expo-[...]

A-6 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments To determine the concentration of a compound present at the sensor from a meter reading, when calibrated with methane, divide the reading (in percent methane) by the factor. For example, if ethylene is flowing by the sensor, and a meter reading of 2.0% is obtained, the concen[...]

A-7 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments Supporting Equipment for Flue Gas Analysis Systems Two basic types of sample probes for flue gas applications are shown in Figures A-1 and A-2. The straight, dry type of probe (Figure A-1) consists of a length of 1" 316 stainless-steel pipe with a mounting[...]

A-8 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments Figure A-1: Typical Dry Probe Figure A-2: Typical Wet Probe )O XH *D V 6 V W HP 'X F W  :D O O 6S U D  :D W HU  ,Q 6 KXW  2I I  9D O YH 6W U DL QH U 6S U D  1 R ]]O H &O HDQ  2X W  3O XJ 6D P S O H  /L QH  0X V W  EH  VO RS HG ?[...]

A-9 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments General Maintenance for CC-2B Series Pumps Maintenance The pump is equipped with a Gits-type oiler which permits the occa- sional lubrication of the Flex-I-Liner interior with Vanton Pump oil or pure Silicone oil of 2000 centistokes viscosity. If the pump is us[...]

A-10 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments (7) Install new Flex-I-Liner: clean all chemicals from exposed parts of pump. (8) Apply a liberal amount of Vanton Pump oil to the inside of the Flex-I-Liner. Spread this oil over the inside interior to the very edge. (9) Push the body block back onto the bracket. Shaft shou[...]

A-11 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments (15) Remove flexible coupling by tapping out the groove pin (8) and then withdrawing coupling from pump shaft. The shaft (26) can then be pressed out of the bracket (7) by tapping or pushing on the coupling end. An arbor press can facilitate this operation. (1[...]

A-12 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments Figure A-3: Pump Assembly NO.QTY DESCRIPTION PART NO. 3 0 1 Support Bracket 8-86-051 2 9 1 Handle (opt) 2 8 4 5/16 x 5/8 Dowel Pin 27 1 1/4hp 1725rpm Motor 8-24-103 26 1 Shaft 2 5 1 Alemite Hydr. Fitting 1729 24 3 Shims 8-66-061 23 1 Bearing Guard XB-45 2 2 1 Bearing Guard S[...]

A-13 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments Supplementary Instructions for Servicing the CC-60B Flex-I-Liner Pump Except for a greater overall length, this pump is essentially the same as the following models CC-2B, CC-6B, CC-12B, CC-18B and CC-30B. (Refer to Figure A-3). Important differences include: [...]

A-14 Appendix Model 9700 TELEDYNE BROWN ENGINEERING Analytical Instruments Replacing the Liner in the Flex-I-Liner Pump Note: When tightening bolts, apply even pressure. Tighten the bolts in a sequence of: upper left — lower right — lower left — upper right. Figure A-4: Replacing the Flex-I-Liner In Figure A-4, the bracket shown in the top ph[...]

A-15 Flue Gas Analysis System Appe ndix TELEDYNE BROWN ENGINEERING Analytical Instruments[...]