WO2020099113A1 - Analyseur d'huile dans l'eau à soutirage latéral - Google Patents

Analyseur d'huile dans l'eau à soutirage latéral Download PDF

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Publication number
WO2020099113A1
WO2020099113A1 PCT/EP2019/079441 EP2019079441W WO2020099113A1 WO 2020099113 A1 WO2020099113 A1 WO 2020099113A1 EP 2019079441 W EP2019079441 W EP 2019079441W WO 2020099113 A1 WO2020099113 A1 WO 2020099113A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor head
oil
sample chamber
sample
enclosure
Prior art date
Application number
PCT/EP2019/079441
Other languages
English (en)
Inventor
Khalid Thabeth
Raymond Acheson
Original Assignee
Inov8 Systems Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inov8 Systems Limited filed Critical Inov8 Systems Limited
Publication of WO2020099113A1 publication Critical patent/WO2020099113A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/154—Ultrasonic cleaning

Definitions

  • This invention relates to a side stream oil in water analyser, and in particular to an improved side stream oil in water analyser which reduces the risk of damage to the electronics of the analyser by heat transfer from the sample being analysed.
  • fluorometers usually includes a light source for causing excitation of a target substance and a detector for measuring the resultant fluorescence of the target substance at a predetermined wavelength.
  • Other devices utilise microscopy, absorption and/or light scatter to determine the properties (such as identity and/or concentration) of substances, in particular oils and solids, in water. Generally such devices are referred to as oil in water analysers.
  • a typical oil in water analyser comprises a sensor head that is capable of detecting the presence, identity and/or amount of oil, and/or other substances, in water, the sensor head typically comprising an optical sensor head, comprising an illumination source (for example one or more lasers and/or LEDs) arranged to illuminate a fluid to be analysed and an optical receiver arranged to receive light from the illuminated fluid and to produce a corresponding electrical output.
  • the sensor head is typically provided with a window to physically isolate the analyser from the fluid to be sampled while allowing the transmission of light.
  • a side stream oil in water analyser comprises a sample chamber having couplings for coupling the sample chamber to a source of water to be analysed, the sample chamber having a measurement window coupled to or forming part of the sensor head.
  • the sensor head is typically coupled or integrally formed with an enclosure within which is mounted a user interface and electronic components and circuitry (usually including a programmable processor with associated circuitry for communicating with the sensor head and the user interface).
  • the user interface usually includes a display screen.
  • the sensor head may be fully or partly located within the enclosure.
  • the sample chamber may contain samples at high temperature.
  • Such high temperature samples heat the body of the sample chamber and, where the sample chamber is coupled to the enclosure, such heat may be transferred to the enclosure by conduction, increasing the temperature within the enclosure, which may lead to damage to the sensitive electronic circuitry and components contained therein.
  • locating the sensor head further from the enclosure to avoid this problem leads to an increase in the overall size, weight and complexity and thus cost of the equipment.
  • oil in water analyser as used herein is intended to embrace analysers that are capable of detecting oil but also any other contaminants or substances that may be present. It will be understood that oil in water analysers may be configured to detect contaminants (especially those that are suspended and/or in particulate or discrete form) in a liquid, and are not limited to detecting oil in water. More generally, the invention may adapted for use with analysers that detect substances in a liquid.
  • an oil in water analyser comprising a sample chamber for receiving a fluid sample to be analysed, a sensor head coupled to the sample chamber and containing an illumination source arranged to illuminate a fluid sample contained in the sample chamber, and an optical receiver arranged to receive light from the illuminated sample and to produce a corresponding electrical output, an enclosure coupled to the sensor head, said enclosure containing electronic circuitry for controlling the operation of the sensor head and for processing signals produced by the sensor head, wherein at least a portion of the sample head incorporates heat dissipating means for minimising heat transfer between the sample chamber and the enclosure.
  • said heat dissipating means comprises heat dissipation fins provided on an outer surface of the sensor head. Said heat dissipation fins may be integrally formed on a body of the sensor head. The heat dissipation fins may be provided adjacent the sample chamber.
  • a window is provided between the sensor head and sample chamber for transmitting light therethrough.
  • An ultrasonic transducer may be provided in the sensor head for cleaning the window.
  • Figure 1 is a perspective view of an oil in water analyser in accordance with an embodiment of the present invention
  • Figure 2 is a detailed perspective view of the sensor head and measurement chamber of the oil in water analyser of Figure 1 ;
  • Figure 3 is a front view of the sensor head and measurement chamber of the oil in water analyser of Figure 1 ;
  • Figure 4 is a side view of the sensor head and measurement chamber of the oil in water analyser of Figure 1.
  • an oil in water analyser in accordance with an embodiment of the present invention comprises a sensor head 2 coupled to a sample chamber 4 adapted to receive a sample to be tested.
  • the sample chamber 4 includes couplings 8,10 for coupling the sample chamber to a source of water or other liquid to be analysed
  • the sensor head 2 is preferably an optical sensor head, comprising an elongate body, within which is provided an illumination source (not shown), for example one or more lasers and/or LEDs, arranged to illuminate a fluid sample contained in the sample chamber 4, and an optical receiver (not shown) arranged to receive light from the illuminated sample and to produce a corresponding electrical output.
  • an illumination source for example one or more lasers and/or LEDs
  • An optical receiver (not shown) arranged to receive light from the illuminated sample and to produce a corresponding electrical output.
  • a window is preferably provided between the sensor head 2 and the sample chamber 4 for transmitting light therebetween.
  • the sensor head 2 may also incorporate an ultrasonic vibration device, such as an ultrasonic transducer, for imparting ultrasonic vibrations to the body of the sensor head 2, more preferably to the window of the sensor head, in order to keep the window clean.
  • an ultrasonic vibration device such as an ultrasonic transducer
  • the sensor head 2 is coupled to an enclosure 12 of the analyser, said enclosure 12 housing electronic circuitry for controlling the operation of the sensor head 2 and for processing signals produced by the sensor head 2.
  • the circuitry may include a charger for the light source, an ultrasonic controller, a signal processing unit, an interface unit, a mains supply conditioning unit and a valve controller (for controlling values that allow water samples into and out of the sample chamber).
  • the enclosure may also house a programmable processor, typically a microprocessor, programmed to control the sensor head and analyse signals produced by the sensor head.
  • a user interface, including a display screen 14, is provided in an outer wall of the enclosure 12. It will be understood that the electronic circuitry may differ from embodiment to embodiment.
  • the enclosure 12 defines an enclosed space for housing and protecting the relevant components of the oil in water analyser (or other items) which, in use, is closed to the external environment and may be substantially air-tight.
  • the enclosure 12 may be formed from a metal, such as stainless steel.
  • the body of the sensor head 2 defines an enclosed space for housing and protecting the optical and associated components of the sensor head.
  • the body of the sensor head 2 may be formed from a metal, such as stainless steel.
  • the outer surface of the body of the sensor head 2 is provided with a plurality of cooling fins 16, greatly increasing the surface area of the body of the sensor head 2 and thus increasing heat dissipation therefrom.
  • the cooling fins 16 are preferably provided adjacent the sample chamber 4.
  • the cooling fins 16 are preferably integrally formed on the body of the sensor head 2.
  • the cooling fins 16 may be provided on a heat sink clamped around or otherwise mounted on the sensor head 2.
  • the heat sink may be formed in two halves clamped around the sensor head and secured thereto using suitable fasteners.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

L'invention concerne un analyseur d'huile dans l'eau comprenant une chambre d'échantillon pour recevoir un échantillon de fluide à analyser, une tête de capteur couplée à la chambre d'échantillon et comportant une source d'éclairage conçue pour éclairer un échantillon de fluide contenu dans la chambre d'échantillon et un récepteur optique conçu pour recevoir la lumière provenant de l'échantillon éclairé et pour produire une sortie électrique correspondante, une enceinte couplée à la tête de capteur, ladite enceinte contenant des circuits électroniques pour commander le fonctionnement de la tête de capteur et pour traiter des signaux produits par la tête de capteur, au moins une partie de la tête d'échantillon comprenant des moyens de dissipation de chaleur pour minimiser le transfert de chaleur entre la chambre d'échantillon et l'enceinte.
PCT/EP2019/079441 2018-11-12 2019-10-28 Analyseur d'huile dans l'eau à soutirage latéral WO2020099113A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1818354.1A GB201818354D0 (en) 2018-11-12 2018-11-12 Side stream oil in water analyser
GB1818354.1 2018-11-12

Publications (1)

Publication Number Publication Date
WO2020099113A1 true WO2020099113A1 (fr) 2020-05-22

Family

ID=64739558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/079441 WO2020099113A1 (fr) 2018-11-12 2019-10-28 Analyseur d'huile dans l'eau à soutirage latéral

Country Status (2)

Country Link
GB (1) GB201818354D0 (fr)
WO (1) WO2020099113A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146283A (en) * 1991-03-26 1992-09-08 Andros Incorporated Spectrophotometer sample cell
US20100296079A1 (en) * 2009-05-20 2010-11-25 Jetalon Solutions, Inc. Sensing system and method
WO2011128406A1 (fr) * 2010-04-14 2011-10-20 Advanced Sensors Limited Appareil d'imagerie
EP3315944A1 (fr) * 2016-11-01 2018-05-02 Advanced Sensors Limited Procédé et appareil de mesure d'un matériau dans un liquide par absorption de lumière
US9964483B2 (en) * 2011-06-07 2018-05-08 Measurement Specialties, Inc. Low-temperature safe sensor package and fluid properties sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146283A (en) * 1991-03-26 1992-09-08 Andros Incorporated Spectrophotometer sample cell
US20100296079A1 (en) * 2009-05-20 2010-11-25 Jetalon Solutions, Inc. Sensing system and method
WO2011128406A1 (fr) * 2010-04-14 2011-10-20 Advanced Sensors Limited Appareil d'imagerie
US9964483B2 (en) * 2011-06-07 2018-05-08 Measurement Specialties, Inc. Low-temperature safe sensor package and fluid properties sensor
EP3315944A1 (fr) * 2016-11-01 2018-05-02 Advanced Sensors Limited Procédé et appareil de mesure d'un matériau dans un liquide par absorption de lumière

Also Published As

Publication number Publication date
GB201818354D0 (en) 2018-12-26

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