EP1399718A1 - Prozessmessstelle - Google Patents
ProzessmessstelleInfo
- Publication number
- EP1399718A1 EP1399718A1 EP02754749A EP02754749A EP1399718A1 EP 1399718 A1 EP1399718 A1 EP 1399718A1 EP 02754749 A EP02754749 A EP 02754749A EP 02754749 A EP02754749 A EP 02754749A EP 1399718 A1 EP1399718 A1 EP 1399718A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spectrometer
- measuring point
- point according
- transmitter
- process measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims abstract description 66
- 230000008569 process Effects 0.000 title claims abstract description 63
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 238000004611 spectroscopical analysis Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005102 attenuated total reflection Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012482 calibration solution Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0291—Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
Definitions
- the invention relates to a process measuring point comprising at least one spectrometer and an associated measuring transducer for recording, processing and forwarding measuring signals of the spectrometer.
- Spectrometric investigations are carried out in the context of production processes for gases and liquids in order to gain knowledge about the production process or the resulting substance or the amount of the substance that has arisen so far, for example, in order to be able to assess the implementation of two starting materials.
- the invention solves this problem by providing a process measuring point comprising at least one spectrometer and an associated measuring transducer for recording, processing and forwarding measuring signals of the spectrometer, the spectrometer in a fitting for introduction into a process or a process stream, i. H. a process fluid is arranged and the data generated by the spectrometer are used to control the process, the armature comprising a housing for receiving the spectrometer and for fixing the armature to a process container containing the process or the process fluid, and a sensor which interacts with the spectrometer is guided axially displaceably in the fitting and the sensor bwz in the extended state in the process. the process fluid protrudes.
- Such a design of a process measuring point has the advantage that the spectrometer is not housed as a separate unit, but rather in a corresponding fitting, as can be used in conventional nozzles provided on reactor vessels and pipelines at corresponding measuring points. Sampling with a considerable amount of time and the need to handle dangerous chemicals is then no longer necessary.
- the spectrometer By installing it in the valve, it can also be used in potentially explosive areas, because the spectrometer can be housed in the valve in an explosion-proof manner.
- the otherwise usual connection of spectrometers via long optical fibers, which is not possible in every wavelength range, can then be omitted. Only short optical paths to the medium have to be bridged, so that spectrometry in the UV range, the visible, the near infrared and the middle infrared range is possible.
- One or more spectrometers can be connected to the transmitter, and it can also be used with other sensors to determine further measurement parameters, such as, for. B. pH value, conductivity, etc.
- the transmitter can display the spectra, evaluate and, for example, via a process-compatible interface such. B. Profibus, Foundation, Fieldbus, Ethernet, a process control center. The process control center then ensures that the corresponding process parameters are updated.
- an identical Device Type Manager can be used as a means of sharing the identical user interface in the transmitter and an externally connected PC.
- the use of a standard interface specification according to the FDT concept may be possible.
- the transmitter can link the individual measurement parameters and carry out calculations with them or perform interactions with process actuators, e.g. B. Process control and process control.
- the spectrometer then delivers inline and in-situ and / or continuous measurement signals in particular.
- the senor comprises a light guide device, in particular optical waveguides, which are used for optically coupling the spectrometer to the process and / or process stream.
- a light guide device in particular optical waveguides, which are used for optically coupling the spectrometer to the process and / or process stream.
- optical waveguides In contrast to conventional connections with optical fibers, they only have to bridge a short distance in the present case in order to couple the light into the liquid and in turn to transmit the emerging light to the spectrometer.
- the coupling can z. B. by absorption or ATR (Attenuated Total Reflection), both of which are common methods for coupling light into a liquid or a gas.
- absorption or ATR Attenuated Total Reflection
- other optical couplings are also conceivable.
- the process spectrometer can be, for example, a spectrometer based on the principle of the grating spectrometer or the ATOF crystal spectrometer or others.
- connection of the spectrometer to the Meuss converter can either be electrical, e.g. B. via digital or analog connection, or optically, for example by means of digital data transmission via optical fibers.
- the spectrometer used is a commercially available spectrometer that is available for different wavelength ranges.
- the spectrometer can be interchangeable within the fitting, the fitting being an exchangeable fitting.
- the complete unit comprising the sensor, namely in particular the optical waveguides, and the spectrometer itself can then be exchanged in the fitting if, for example, measurements are to be carried out in a different wavelength range.
- the sensor which is in the extended position in its measuring position in the process or in the process stream, is in its retracted position in a cleaning position and / or calibration position.
- the transmitter controls the retractable valve for this purpose, for. B. to clean or calibrate the spectrometer.
- This can be program-controlled, event-controlled from outside via a time sequence, or controlled by the measurement signal itself. This enables, for example, automatic cleaning when contamination is detected or automatic calibration with a calibration solution if, for. B. the measured values do not appear plausible.
- the senor installed in a sensor holder is guided along a guide device in the valve in the axial direction out of the process medium and drawn into the valve and brought into a cleaning or calibration position in which a corresponding treatment is carried out can be.
- the sensor can then be lowered again into the process medium.
- the single figure shows a measuring point according to the invention for a manufacturing process in the chemical or petrochemical industry.
- the process measuring point is provided with the reference number 10 in its entirety.
- the two fittings 14, 16 each contain a process spectrometer (not shown) which is arranged in the housing 18 or 20 of the fittings 14, 16.
- the spectrometers are commercially available devices that are designed for certain wavelength ranges. Both spectrometers are designed to be explosion-proof.
- fittings 14, 16 each comprise a sensor holder 22, 24, which can be moved in the axial direction (arrow direction 26), for receiving the sensors.
- the figure shows the sensor holders 22, 24 in their extended, ie measuring position, in which they protrude into the process fluid, which is located, for example, in a chemical reactor.
- the sensor holder 22, 24 can be pulled back into the housing section 28, 30 of the fittings 14, 16. This then no longer protrudes into the process fluid. It can be provided that the outlet opening for the sensor holder 22, 24 is then closed, so that the fitting 14, 16 is no longer in contact with the fluid.
- Optical waveguides are arranged within the sensor holder 22, 24 and couple the light into the fluid by means of the absorption method.
- the measurement takes place here within the measuring opening 22o or 24o through which the fluid flows.
- the measurement signals of the two probes are then forwarded via lines 33 to the transmitter 12, which serves as a multi-parameter transmitter and receives, processes and forwards the measurement signals of the spectrometers.
- the transmitter 12 receives measurement signals from other sensors, such as pH or conductivity, via the lines 29.
- the data obtained is sent by the transmitter 12 via an Internet connection 30 or a Profibus connection 32 to a process control system which controls the production process.
- the transmitter 12 can also link individual measurement parameters, carry out calculations with them and perform interactions with process actuators.
- the transmitter 12 can control the retractable fittings 14, 16 in order to clean and calibrate the spectrometer.
- DTM Device Type Manager
- the sensor brackets 22, 24 are moved in the arrow direction 32 into the housing section 28 and 30 of the fittings 14, 16. The opening for the passage of the sensor brackets 22, 24 is then closed. The sensors are then calibrated or cleaned within the armature sections 28, 30. After calibration or cleaning, these are coupled back into the process in the direction of arrow 26.
- the spectrometer is connected to the transmitter 12 via the lines 28 via analog electrical lines.
- the fittings 14, 16 are attached with their flanges 16f and 14f to the pipelines and to corresponding sockets thereof or to sockets in a reactor and are hereby fixed.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10130862A DE10130862A1 (de) | 2001-06-28 | 2001-06-28 | Prozeßmessstelle |
DE10130862 | 2001-06-28 | ||
PCT/EP2002/007008 WO2003002958A1 (de) | 2001-06-28 | 2002-06-25 | Prozessmessstelle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1399718A1 true EP1399718A1 (de) | 2004-03-24 |
Family
ID=7689551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02754749A Ceased EP1399718A1 (de) | 2001-06-28 | 2002-06-25 | Prozessmessstelle |
Country Status (5)
Country | Link |
---|---|
US (1) | US7259848B2 (ja) |
EP (1) | EP1399718A1 (ja) |
JP (1) | JP3936935B2 (ja) |
DE (1) | DE10130862A1 (ja) |
WO (1) | WO2003002958A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10313389A1 (de) * | 2003-03-25 | 2004-10-07 | Endress + Hauser Process Solutions Ag | Verfahren zur Übertragung von Softwarecode von einer Steuereinheit zu einem Feldgerät der Prozessautomatisierungstechnik |
JP5371295B2 (ja) * | 2007-08-31 | 2013-12-18 | キヤノン株式会社 | 電磁波の分析装置 |
EP3608667B8 (en) * | 2018-11-15 | 2022-05-04 | Holcim Technology Ltd | Method and device for analyzing samples of a gas in a rotary cement kiln |
DE102019135598A1 (de) * | 2019-12-20 | 2021-06-24 | Endress+Hauser Conducta Gmbh+Co. Kg | Intelligente Sicherheitsarmatur und Steuerverfahren einer intelligenten Sicherheitsarmatur |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29821754U1 (de) * | 1998-12-07 | 1999-02-18 | Exner Gesellschaft für Analysenmesstechnik mbH + Co. KG, 41468 Neuss | Meßvorrichtung zur spektralphotometrischen Messung von Flüssigkeiten im UV/VIS- oder VIS/NIR-Bereich |
US6128079A (en) * | 1999-03-25 | 2000-10-03 | Electric Power Research Institute, Inc. | Fiber optic probe and system for measurement of moisture in steam turbines |
WO2000062028A2 (en) * | 1999-04-09 | 2000-10-19 | Spectraprobe Limited | Improvements in, or relating to, infra-red detection |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4177676A (en) * | 1978-05-25 | 1979-12-11 | Welker Robert H | Sensor positioning apparatus |
GB8323409D0 (en) * | 1983-09-01 | 1983-10-05 | Ontario Ltd 471199 | Control of boiler operations |
US4786171A (en) * | 1986-07-29 | 1988-11-22 | Guided Wave, Inc. | Spectral analysis apparatus and method |
DE3839561C2 (de) * | 1988-11-24 | 1996-10-24 | Lange Gmbh Dr Bruno | Vorrichtung zum Bestimmen der Komponenten in flüssigen Medien |
US5051551A (en) * | 1989-05-18 | 1991-09-24 | Axiom Analytical, Inc. | Immersion probe for infrared internal reflectance spectroscopy |
GB9005021D0 (en) * | 1990-03-06 | 1990-05-02 | Alfa Laval Sharples Ltd | Turbidity measurement |
US5095275A (en) * | 1990-07-19 | 1992-03-10 | Auburn International, Inc. | Long term particle monitoring |
DE4414975C2 (de) * | 1994-04-29 | 2000-06-15 | Bayer Ag | Vorrichtung zur spektroskopischen Analyse von Prozeßgemischen |
SE9403543D0 (sv) | 1994-10-18 | 1994-10-18 | Arums Ltd | Method and probe for on-line optical analysis |
US5657404A (en) * | 1995-05-25 | 1997-08-12 | Eastman Chemical Company | Robust spectroscopic optical probe |
US5995916A (en) * | 1996-04-12 | 1999-11-30 | Fisher-Rosemount Systems, Inc. | Process control system for monitoring and displaying diagnostic information of multiple distributed devices |
DE19628348C1 (de) * | 1996-07-13 | 1997-09-25 | Parsum Ges Fuer Partikel Stroe | Meßsonde zur in-line-Bestimmung der Größe von bewegten Partikeln in transparenten Medien |
US5712710A (en) * | 1996-10-15 | 1998-01-27 | Cetin Karakus | Spectrophotometric probe for insitu measurement |
DE19730826A1 (de) * | 1996-11-15 | 1999-01-21 | Optosens Optische Spektroskopi | Kombinierte Absorptions- und Reflektanzspektroskopie zur synchronen Ermittlung der Absorption, Fluoreszenz, Streuung und Brechung transmittierender Flüssigkeiten, Gase und Festkörper |
US6043895A (en) * | 1998-11-10 | 2000-03-28 | Uop Llc | Radiation probe with flexible sleeve |
JP2000206045A (ja) | 1999-01-18 | 2000-07-28 | Horiba Ltd | インラインモニタ |
AT408488B (de) * | 1999-12-22 | 2001-12-27 | Scan Messtechnik Gmbh | Miniaturisiertes spektrometer |
-
2001
- 2001-06-28 DE DE10130862A patent/DE10130862A1/de not_active Ceased
-
2002
- 2002-06-25 JP JP2003508896A patent/JP3936935B2/ja not_active Expired - Lifetime
- 2002-06-25 WO PCT/EP2002/007008 patent/WO2003002958A1/de active Application Filing
- 2002-06-25 EP EP02754749A patent/EP1399718A1/de not_active Ceased
- 2002-06-25 US US10/481,402 patent/US7259848B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29821754U1 (de) * | 1998-12-07 | 1999-02-18 | Exner Gesellschaft für Analysenmesstechnik mbH + Co. KG, 41468 Neuss | Meßvorrichtung zur spektralphotometrischen Messung von Flüssigkeiten im UV/VIS- oder VIS/NIR-Bereich |
US6128079A (en) * | 1999-03-25 | 2000-10-03 | Electric Power Research Institute, Inc. | Fiber optic probe and system for measurement of moisture in steam turbines |
WO2000062028A2 (en) * | 1999-04-09 | 2000-10-19 | Spectraprobe Limited | Improvements in, or relating to, infra-red detection |
Non-Patent Citations (1)
Title |
---|
See also references of WO03002958A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP3936935B2 (ja) | 2007-06-27 |
DE10130862A1 (de) | 2003-01-23 |
JP2004530908A (ja) | 2004-10-07 |
WO2003002958A1 (de) | 2003-01-09 |
US20050046838A1 (en) | 2005-03-03 |
US7259848B2 (en) | 2007-08-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20031218 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17Q | First examination report despatched |
Effective date: 20071116 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20090330 |