YOKOGAWA EXAxt ZR22G Technical Information Download Page 32 | Manualshive

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YOKOGAWA EXAxt ZR22G Technical Information Download Page 32

All Rights Reserved. Copyright © 2004, Yokogawa Electric Corporation

TI 11M12A01-01E

4-17

4. Applications

<Toc> <Ind>

c) Aeration tank

In one type of sludge processing, oxygen gas is introduced into the processing tanks to maintain
the dissolved oxygen concentration in the sludge liquid at a proper level. Efficiency is checked by
measuring the oxygen concentration in the exhaust gas from the processing tank.

T0417.EPS

Sample point

Exhaust line

System type

L2, L3

Detector

D1

Objective

Efficiency monitoring & alarm

F0417.EPS

Activated Sludge Processing Facility

(Surface Aeration System Aeration Tank)

Control Valve

Oxygen

Waste Water

Returned

Sludge

Agitator

Gas Recycle Compressor

Mixed
Liquids

Exhaust

Aeration tank

Temperature: Normal temperature
Pressure: 0 to 1 kPa
Concentration: Approximately 50% O

2

(0 to 100% range)

May 31, 2004-00

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Summary of Contents for EXAxt ZR22G

Page 1: ...Technical Information ZR22G ZR402G Direct In Situ Zirconia Oxygen Analyzer Applications Volume TI 11M12A01 01E TI 11M12A01 01E 1st Edition May 2004 KP...

Page 2: ...age boiler 4 1 b Power generation boiler Heavy oil Gas 4 2 c Pulverized coal boiler 4 3 d Black liquor recovery boiler 4 4 4 2 Iron and Steel Furnaces 4 5 a Iron steel heating furnace 4 5 b Hot blast...

Page 3: ...2004 Yokogawa Electric Corporation Int Ind TI 11M12A01 01E May 31 2004 00 4 7 Difficult Measurement Applications 4 18 a Glass melting furnace in furnace gas 4 18 b Calcinating furnace 4 19 c Facilitie...

Page 4: ...lity Zirconia sensor and its heater assembly can be replaced on site The detector is mounted for example on the wall of a flue and can measure the gases directly For use in combustion gases at tempera...

Page 5: ...Blank Page...

Page 6: ...od bad installation examples are shown below for your reference Instructions for installation Duct Gas Flow Oriented obliquely against the gas flow Installed on a a bend in the duct Mounted above the...

Page 7: ...t contact output Digital output HART Signal 6 core shield cable Heater 2 core Instr ument air is a vailable EXA ZR402G ZR402G Converter Check valve or Stop Valve ZA8F flow setting unit ZR22G Zirconia...

Page 8: ...ass melting furnaces inside furnace Glass melting furnaces flue Ceramic firing furnaces Fired heaters cracking furnaces Black liquor recovery boilers Electrical generating boilers window box Garbage s...

Page 9: ...linder using standard gas unit using instrument air zero gas cylinder using instrument air zero gas cylinder Yes None 3 2 Selection According to Use Examples of selection according to use T0303 EPS Sy...

Page 10: ...ector same as above Detector with filter same as above Note 1 Detector can be selected from among the following F0302 EPS See the detector section for details concerning detectors 3 Type L3 auto calib...

Page 11: ...l mounting Mounting orientation Maximum temperature C 800 1400 SUS310S SUS310S SiC Note 3 Selection of high temperature probe material Necessary Check Needle valve 1 Ejector ASSY 2 Ejector ASSY 3 Pres...

Page 12: ...ZR402G Converter Signal 1 6 core shield cable Heater 2 core Reference gas Calibration gas Flowmeter Needle valve Zero gas cylinder 100 to 240 V AC 2 Check valve 3 ZR40H Auto Calibration unit Contact i...

Page 13: ...tor or with sic filter General purpose detector with protector filter General purpose detector with probe protector or with sic filter Note 2 ZR22G with ZO21R L or with K9471UA ZR22G with K9471UC or w...

Page 14: ...ation Temperature C Auxiliary ejector Valve Not required Required Not required Not required required Not required Valve Valve Auxiliary ejector Auxiliary ejector 0 5 to 0 to 0 05 Note 1 0 05 to 0 5 ov...

Page 15: ...Flow setting unit Remarks ZO21S A standard gas unit air set not included Minimum configuration for small boiler monitoring etc Most common configuration Solenoid valve unit for handling unburnt gas i...

Page 16: ...zer systems to be used under those conditions 4 1 Boiler a Package boiler This is the most common application Although the system is generally used for combustion monitoring there are also cases in wh...

Page 17: ...a single point In electric power companies measurements are performed at multiple points in a single flue Sample point System type T0402 EPS Objective Detector Boiler furnace outlet or economizer outl...

Page 18: ...pe T0403 EPS Objective Detector Economizer outlet economizer feedwater afterheater L2 L3 detector with probe protector D4 Combustion monitoring O2 control F0403 EPS Ash Steam Boiler Main Unit Exhaust...

Page 19: ...eam The oxygen analyzer is used to monitor or control the combus tion in the combustion facility boiler Since the exhaust gas includes large amounts of dust hydrated sodium sulfate and water vapor a d...

Page 20: ...The oxygen concentration is controlled to a low level to prevent oxidation of the slabs These are also some cases in which there is some amount of CO in the gas and in which magnetic oxygen analyzers...

Page 21: ...erated from the coke ovens The O2 analyzer is used to control or monitor this combustion Sample point System type T0404 EPS Objective Detector Duct D1 L2 L3 If pressure is high a pressure compensated...

Page 22: ...e exhaust gas from the heater combustion used for destruc tive distillation of the coal Sample point System type T0405 EPS Objective Detector Flue L2 L3 D1 D2 Combustion monitoring F0405 EPS Dust Fuel...

Page 23: ...dation Sample point System type T0406 EPS Objective Detector Ahead of recuperator H2 H3 D5 Combustion monitoring F0406 EPS Soaking pit Temperature 1000 to 1200 C Pressure 0 03 to 0 05 kPa Dust 0 5 g N...

Page 24: ...the presence of large amounts of abrasive particulates and intrusion air Sample point System type T0407 EPS Objective Detector Kiln end L2 L3 H2 H3 D4 D3 D5 D6 Combustion monitoring Raw Materials Int...

Page 25: ...per ton of cement Thus combustion management by means of O2 analyzers has become a critical ele ment There are cases in which O2 CO and CO2 measurements are performed using a sampling system at the k...

Page 26: ...erous that you could almost say that there is one in almost every process Also since a site consists not of just a single petroleum refining process but rather of ten or more processes this means that...

Page 27: ...T0411 EPS Stack Furnace outlet convection zone L2 L3 H2 H3 D1 D2 D5 D6 Explosion proof type with terminal box may also be selected T0412 EPS Name Stack Convection Temperature C Approx 300 to 500 Appro...

Page 28: ...cations Sample point System type Detector Objective Fired heaters Stack or convection L2 L3 H2 H3 Explosionproof type external terminal box may also be selected 2 1 D1 D2 D5 D6 Combustion monitoring F...

Page 29: ...L3 Detector D1 D3 D5 Objective Combustion monitoring Combustion monitoring H2 H3 Note depending on the conditions at the sample point a sampling type system may be required Sewage Sludge Measured Fee...

Page 30: ...values higher than the concentration of oxygen in the air approximately 21 T0415 EPS Sample point Air oxygen mixing line Oxygen supply line Oxygen compressor outlet System type H3 Note 1 H3 Note 1 Det...

Page 31: ...oes not drop too low The analyzer range will be a partial range that includes the atmospheric oxygen concentration such as 15 to 22 O2 T0416 EPS Sample point Window box System type L2 L3 Detector D1 N...

Page 32: ...hecked by measuring the oxygen concentration in the exhaust gas from the processing tank T0417 EPS Sample point Exhaust line System type L2 L3 Detector D1 Objective Efficiency monitoring alarm F0417 E...

Page 33: ...y difficult or impossible due to the dust and fumes from the components of the glass However since continuous measurements are being performed in some cases by the method shown in the diagram we offer...

Page 34: ...reducing gases refers to those gases which react with metal oxides to reduce them either to metal or to oxides of a lower degree of oxidation These gases are composed of a reducing component of which...

Page 35: ...Blank Page...

Page 36: ...Converter E7046EC E7046EN Auxiliary Ejector for high temperature use Model ZO21R Probe Protector for Oxgen Analyzer 1 General information Nor Min Max Nor Nor Nor Nor Min Min Min Min Max Max Max No ga...

Page 37: ...Blank Page...

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