JP2016524688A - 蒸気ボイラの熱交換器の質量変化をモニタリングするための方法及びシステム - Google Patents
蒸気ボイラの熱交換器の質量変化をモニタリングするための方法及びシステム Download PDFInfo
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- JP2016524688A JP2016524688A JP2016518552A JP2016518552A JP2016524688A JP 2016524688 A JP2016524688 A JP 2016524688A JP 2016518552 A JP2016518552 A JP 2016518552A JP 2016518552 A JP2016518552 A JP 2016518552A JP 2016524688 A JP2016524688 A JP 2016524688A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000004071 soot Substances 0.000 description 16
- 238000012546 transfer Methods 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000007664 blowing Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000018883 loss of balance Diseases 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/56—Boiler cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1869—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861
- F22B1/1876—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861 the hot gas being loaded with particles, e.g. dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
- F22B37/244—Supporting, suspending, or setting arrangements, e.g. heat shielding for water-tube steam generators suspended from the top
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B7/00—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body
- F22B7/04—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary water tubes
- F22B7/08—Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body with auxiliary water tubes inside the furnace tube in longitudinal arrangement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/14—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads
- G01G19/18—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing suspended loads having electrical weight-sensitive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
ただし、
Wi,sは、時点tiにおける支持ポイントsにおいて測定された質量であり、
CFε−W,sは、伸長と支持ポイントsに印加された質量との間の変換係数である(等式2)。係数CFε−W,sの理論値はビームのひずみから有限要素法を用いて演算できる。
CFS−εは、データ・ロギング・システムのデジタル出力信号とひずみゲージから測定された伸長との間の変換係数である(等式3)。CFS−εはデータ・ロギング・システムの設定とひずみゲージの構成(この場合は、それぞれの支持ポイントsに4つのアクティブなゲージを有するホイートストン・フル・ブリッジ)とによって決まる。
Si,sは、データ・ロギング・システムによって生成された、ある時点tiでの支持ポイントsにおけるひずみゲージからの出力信号である。
S0,sは、データ・ロギング・システムによって生成された、支持ポイントsにおけるひずみゲージからの出力信号であり、0質量(すなわち、ボイラがきれいな状態での測定の開始時の出力信号)に相当する。
ただし、
RFEMは、有限要素法によって演算された支持ポイントsにおける支持反力であり(質量Wiをキログラムで得るため、RFEMは、キログラムに変換されなくてはならない)、
ε1,s...ε4,sは、有限要素法によって演算された、特定の方向に関するひずみゲージの相対的伸長である(図4及び図5)。
ただし、
Uoutは、データ・ロギング・システムの出力電圧、すなわち測定電圧であり(等式4)、
GFはひずみゲージ生成器によって与えられたゲージ定数であり、
Uexcは、ホイートストン・ブリッジの励起電圧である。
Claims (10)
- 蒸気ボイラの熱交換器バンク(10、11、12)の質量変化をモニタリングする方法であり、前記熱交換器バンク(10、11、12)は、ハンガー・ロッド(13)と支持ビーム(14)とによって前記蒸気ボイラのフレーム・ビーム(15)に対して支持されている、方法であって、前記支持ビーム(14)の垂直支持要素(22)は、前記熱交換器バンク(10、11、12)の質量によって前記支持ビーム(14)に生じるひずみ状態の変化を測定するためのひずみゲージ(17)を備えることを特徴とする方法。
- ひずみゲージ(17)は、支持ビーム(14)がフレーム・ビーム(15)に載置される場所である前記支持ビーム(14)の支持ポイント(s1、s2、s3、s4)の近傍に位置することを特徴とする、請求項1に記載の方法。
- それぞれの支持ポイント(s1、s2、s3、s4)におけるひずみ状態の変化はホイートストン・フル・ブリッジ接続を形成する4つのひずみゲージ(17)によって測定されることを特徴とする、請求項1又は2に記載の方法。
- 4つのひずみゲージ(17)のうちの2つは主ひずみの方向に設けられ、2つは主ひずみの前記方向に垂直な方向に設けられることを特徴とする、請求項3に記載の方法。
- 支持ポイント(s1、s2、s3、s4)の近傍における支持ビーム(14)の主ひずみは有限要素法によって求められることを特徴とする、請求項4に記載の方法。
- ひずみゲージ(17)は、支持ビーム(14)の起こり得るねじれを補償するために、支持ポイント(s1、s2、s3、s4)において、前記支持ビーム(14)の2つの垂直支持要素(22)に固定されることを特徴とする、請求項2に記載の方法。
- ひずみゲージ(17)は、支持ビーム(14)の垂直支持要素(22)に、フレーム・ビーム(15)の支持力(RFEM)によって生じる主ひずみが約45°の角度で加えられるポイントにおいて配置されることを特徴とする、請求項1から6までのいずれか一項に記載の方法。
- 必要があれば、測定システムは、支持ビームの既知の位置、好ましくは1つ又は複数のハンガー・ロッド、に既知の質量を配置することによって、較正されることを特徴とする、請求項1から7までのいずれか一項に記載の方法。
- 必要があれば、前記測定システムは有限要素法によって較正されることを特徴とする、請求項1から8までのいずれか一項に記載の方法。
- 蒸気ボイラの熱交換器バンク(10、11、12)の質量変化をモニタリングするシステムであり、前記熱交換器バンク(10、11、12)はハンガー・ロッド(13)と支持ビーム(14)とによって前記蒸気ボイラのフレーム・ビーム(15)に対して支持されているシステムであって、前記システムは、前記熱交換器バンク(10、11、12)の質量によって前記支持ビーム(14)に生じるひずみ状態の変化を測定するための、前記支持ビーム(14)の垂直支持要素(22)に固定された複数のひずみゲージ(17)と、測定データのログを取るためのデータ・ロギング手段と、前記測定データを処理するためのコンピュータ又はそれに相当する演算ユニットと、を備えることを特徴とするシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20135639 | 2013-06-11 | ||
FI20135639A FI125374B (fi) | 2013-06-11 | 2013-06-11 | Menetelmä ja järjestelmä höyrykattilan lämmönsiirtimien massamuutosten mittaamiseksi |
PCT/FI2014/050469 WO2014199016A2 (en) | 2013-06-11 | 2014-06-10 | Method and system for monitoring the mass changes of heat exchangers of a steam boiler |
Publications (2)
Publication Number | Publication Date |
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JP2016524688A true JP2016524688A (ja) | 2016-08-18 |
JP6438945B2 JP6438945B2 (ja) | 2018-12-19 |
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JP2016518552A Active JP6438945B2 (ja) | 2013-06-11 | 2014-06-10 | 蒸気ボイラの熱交換器の質量変化をモニタリングするための方法及びシステム |
Country Status (13)
Country | Link |
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US (1) | US10132495B2 (ja) |
EP (1) | EP3008382B1 (ja) |
JP (1) | JP6438945B2 (ja) |
CN (1) | CN105556208B (ja) |
BR (1) | BR112015030079B1 (ja) |
CA (1) | CA2910436C (ja) |
CL (1) | CL2015003471A1 (ja) |
ES (1) | ES2646323T3 (ja) |
FI (1) | FI125374B (ja) |
PL (1) | PL3008382T3 (ja) |
PT (1) | PT3008382T (ja) |
RU (1) | RU2658720C2 (ja) |
WO (1) | WO2014199016A2 (ja) |
Families Citing this family (3)
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JP6671146B2 (ja) * | 2015-11-02 | 2020-03-25 | 三菱日立パワーシステムズ株式会社 | 節炭器及びボイラ並びに伝熱管の補修方法 |
CA3136783A1 (en) * | 2019-05-09 | 2020-11-12 | Andritz Oy | A method and an arrangement for measuring mass changes of heat exchangers of a steam boiler |
CN111504437B (zh) * | 2020-05-29 | 2020-12-29 | 西南石油大学 | 一种称量结构及吸附气测量设备 |
Citations (4)
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JPH01265918A (ja) * | 1988-04-18 | 1989-10-24 | Hitachi Heating Appliance Co Ltd | 炊飯器 |
US6323442B1 (en) * | 1999-12-07 | 2001-11-27 | International Paper Company | System and method for measuring weight of deposit on boiler superheaters |
WO2004102104A1 (en) * | 2003-05-14 | 2004-11-25 | International Paper Company | System and method for measuring weight of deposit on boiler superheaters |
US20080210178A1 (en) * | 2005-07-29 | 2008-09-04 | Clyde Bergemann Gmbh | Selective cleaning of heat exchanging devices in the boiler of a combustion plant |
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EP1468168A2 (en) * | 2001-12-31 | 2004-10-20 | The Government of the United States of America, as represented by the Secretary, Department of Health & Human Services | Strain detection in rock bolts |
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-
2013
- 2013-06-11 FI FI20135639A patent/FI125374B/fi active IP Right Grant
-
2014
- 2014-06-10 CN CN201480030173.6A patent/CN105556208B/zh active Active
- 2014-06-10 WO PCT/FI2014/050469 patent/WO2014199016A2/en active Application Filing
- 2014-06-10 JP JP2016518552A patent/JP6438945B2/ja active Active
- 2014-06-10 ES ES14739210.4T patent/ES2646323T3/es active Active
- 2014-06-10 PT PT147392104T patent/PT3008382T/pt unknown
- 2014-06-10 CA CA2910436A patent/CA2910436C/en active Active
- 2014-06-10 BR BR112015030079-0A patent/BR112015030079B1/pt active IP Right Grant
- 2014-06-10 PL PL14739210T patent/PL3008382T3/pl unknown
- 2014-06-10 RU RU2015156066A patent/RU2658720C2/ru active
- 2014-06-10 EP EP14739210.4A patent/EP3008382B1/en active Active
- 2014-06-10 US US14/898,050 patent/US10132495B2/en active Active
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- 2015-11-27 CL CL2015003471A patent/CL2015003471A1/es unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01265918A (ja) * | 1988-04-18 | 1989-10-24 | Hitachi Heating Appliance Co Ltd | 炊飯器 |
US6323442B1 (en) * | 1999-12-07 | 2001-11-27 | International Paper Company | System and method for measuring weight of deposit on boiler superheaters |
WO2004102104A1 (en) * | 2003-05-14 | 2004-11-25 | International Paper Company | System and method for measuring weight of deposit on boiler superheaters |
US20080210178A1 (en) * | 2005-07-29 | 2008-09-04 | Clyde Bergemann Gmbh | Selective cleaning of heat exchanging devices in the boiler of a combustion plant |
Also Published As
Publication number | Publication date |
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CL2015003471A1 (es) | 2016-09-30 |
RU2015156066A (ru) | 2017-07-17 |
CN105556208B (zh) | 2019-06-14 |
US10132495B2 (en) | 2018-11-20 |
EP3008382A2 (en) | 2016-04-20 |
PT3008382T (pt) | 2017-11-14 |
WO2014199016A3 (en) | 2015-04-09 |
WO2014199016A2 (en) | 2014-12-18 |
ES2646323T3 (es) | 2017-12-13 |
RU2658720C2 (ru) | 2018-06-22 |
FI125374B (fi) | 2015-09-15 |
BR112015030079B1 (pt) | 2022-08-02 |
CA2910436C (en) | 2021-05-04 |
PL3008382T3 (pl) | 2018-01-31 |
RU2015156066A3 (ja) | 2018-05-03 |
US20160116159A1 (en) | 2016-04-28 |
EP3008382B1 (en) | 2017-08-09 |
CA2910436A1 (en) | 2014-12-18 |
BR112015030079A2 (pt) | 2017-07-25 |
CN105556208A (zh) | 2016-05-04 |
JP6438945B2 (ja) | 2018-12-19 |
FI20135639A (fi) | 2014-12-12 |
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