FR2632402A3 - Suction pyrometer lance (pipe) - Google Patents

Suction pyrometer lance (pipe) Download PDF

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Publication number
FR2632402A3
FR2632402A3 FR8807374A FR8807374A FR2632402A3 FR 2632402 A3 FR2632402 A3 FR 2632402A3 FR 8807374 A FR8807374 A FR 8807374A FR 8807374 A FR8807374 A FR 8807374A FR 2632402 A3 FR2632402 A3 FR 2632402A3
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FR
France
Prior art keywords
lance
thermocouple
pipe
tubular sleeve
pyrometer
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.)
Granted
Application number
FR8807374A
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French (fr)
Other versions
FR2632402B3 (en
Inventor
Jean-Marc Moretti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR8807374A priority Critical patent/FR2632402B3/en
Publication of FR2632402A3 publication Critical patent/FR2632402A3/en
Application granted granted Critical
Publication of FR2632402B3 publication Critical patent/FR2632402B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • G01K13/022—Suction thermometers
    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • 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
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The invention relates to a suction pyrometer lance (pipe) which carries at its end a thermocouple and is bordered by connection wires from the thermocouple, comprising a disposable adapter, consisting of a tubular sleeve mounted at the end of the lance (pipe), by a thermocouple fixed to the tubular sleeve, and by sections of connecting wires from the thermocouple to a connector intended to interact with the connection wires bordering the lance (pipe).

Description

LANCE DE PYROMETRE A ASPIRATION
La présente invention concerne une lance de pyromètre à aspiration.SUCTION PYROMETER LANCE
The present invention relates to a suction pyrometer lance.

On connatt des pyromètres à aspiration dont 11 élément destiné à pénétrer au sein dru milieu gazeux dont on veut mesurer la température est réalisé sous forme d'une lance tubulaire rigide ou semi-rigide, à l'extrémité de laquelle est placé un thermocouple, les fils de liaison du thermocouple à un appareil de mesure extérieur cheminant dans la paroi de la lance tubulaire. Aspiration pyrometers are known, of which 11 elements intended to penetrate into the gaseous medium whose temperature is to be measured is produced in the form of a rigid or semi-rigid tubular lance, at the end of which is placed a thermocouple, the wires connecting the thermocouple to an external measuring device passing through the wall of the tubular lance.

Le gaz est aspiré à une certaine vitesse par le passage central de la lance afin d'améliorer la-rapidité et la précision de la mesure. The gas is sucked in at a certain speed through the central passage of the lance in order to improve the speed and accuracy of the measurement.

Ces lances sont dune construction relativement délicate et donc coûteuse, de sorte qu'elles sont réservées à la mesure de températures de gaz "propres", ctest-à-dire dépourvus dteffluents polluants, abrasifs ou corrosifs tant sous forme solide que gazeuse. These lances are of a relatively delicate and therefore costly construction, so that they are reserved for measuring "clean" gas temperatures, that is to say free of polluting, abrasive or corrosive effluents both in solid and gaseous form.

La présente invention a pour but de permettre d'utiliser une telle lance de pyromètre pour la mesure de gaz contenant des effluents solides ou gazeux, poussières notamment, sans avoir à remplacer fréquemment la lance. The present invention aims to allow the use of such a pyrometer lance for the measurement of gas containing solid or gaseous effluents, dust in particular, without having to frequently replace the lance.

A cet effet, la présente invention a pour objet une lance de pyromètre à aspiration portant à son extrémité un thermocouple et longée par des fils de liaison depuis le thermocouple, caractérisée en ce que ltextrémité de la lance comporte un embout jetable, constitué par un manchon tubulaire monté à 11 extrémité de la lance, par un thermocouple fixé au manchon tubulaire et par des tronçons de fils de raccordement depuis le thermocouple jusqu'à un raccord destiné à coopérer avec les fils de liaison longeant la lance. To this end, the present invention relates to a suction pyrometer lance carrying at its end a thermocouple and bordered by connecting wires from the thermocouple, characterized in that the end of the lance comprises a disposable tip, constituted by a sleeve tubular mounted at the end of the lance, by a thermocouple fixed to the tubular sleeve and by sections of connection wires from the thermocouple to a connector intended to cooperate with the connection wires running alongside the lance.

Ainsi, lors de l'utilisation dans des gaz poussiéreux ou contenant des effluents corrosifs ou polluants, il suffira à intervalles réguliers de changer l'embout jetable, sans avoir à remplacer la lance elle même. Thus, when used in dusty gases or containing corrosive or polluting effluents, it will suffice at regular intervals to change the disposable tip, without having to replace the lance itself.

Les détails de l'invention apparaîtront clairement à la lecture de la description qui va suivre, en regard de la figure annexée qui est une vue en coupe d'une extrémité de lance de pyromètre selon l'invention. The details of the invention will appear clearly on reading the description which follows, with reference to the appended figure which is a sectional view of an end of a pyrometer lance according to the invention.

La lance, désignée dans son ensemble par la référence 10 est un élément tubulaire rigide ou semi-rigide de longueur suffisante pour pouvoir traverser la paroi d'un four et se projeter jusqu'au sein du milieu gazeux dont on veut mesurer la température. Seule l'extrémité de la lance a été représentée par simplification. The lance, designated as a whole by the reference 10 is a rigid or semi-rigid tubular element of sufficient length to be able to pass through the wall of an oven and project itself into the gaseous medium whose temperature is to be measured. Only the end of the lance has been shown for simplicity.

A cette extrémité, la lance comporte un embout jetable 12 constitué par un manchon tubulaire 14 emmanché dans un logement 16 à l'extrémité de la lance, par un thermocouple 18 fixé au manchon et en saillie dans le passage intérieur 20 de celui-ci, et par des tronçons de fils de raccordement 22 depuis le thermocouple 18 jusqu'à un raccord 24 destinés à coopérer avec des fils de liaison 26. At this end, the lance comprises a disposable tip 12 constituted by a tubular sleeve 14 fitted into a housing 16 at the end of the lance, by a thermocouple 18 fixed to the sleeve and projecting into the internal passage 20 thereof, and by sections of connection wires 22 from the thermocouple 18 to a connector 24 intended to cooperate with connection wires 26.

Comme connu, les fils de liaison 26 longent la lance 10 pour aboutir à un appareil de mesure extérieur (non représenté). As known, the connecting wires 26 run along the lance 10 to lead to an external measuring device (not shown).

Le passage intérieur 20 du manchon et le passage intérieur 28 de la lance sont sensiblement en alignement de façon à permettre l'aspiration d'un gaz comme bien connu dans la technique des pyromètres à aspiration. The interior passage 20 of the sleeve and the interior passage 28 of the lance are substantially in alignment so as to allow the suction of a gas as well known in the art of suction pyrometers.

On notera que l'invention permet l'utilisation de la lance pour la mesure de température de gaz contenant toutes sortes d'effluents, poussières notamment. En effet, seul l'embout subit des détériorations et peut être aisément Jeté et remplacé par un nouvel embout à intervalles réguliers, aussi fréquemment que nécessaire, sans qutil soit besoin de remplacer la lance elle même.  It will be noted that the invention allows the use of the lance for measuring the temperature of gases containing all kinds of effluents, in particular dust. Indeed, only the tip undergoes deterioration and can be easily discarded and replaced by a new tip at regular intervals, as frequently as necessary, without the need to replace the lance itself.

Claims (2)

REVENDICATIONS 1. Lance de pyromètre à aspiration portant à son extrémité un thermocouple et longée par des fils de liaison depuis le thermocouple, caractérisée en ce que l'extrémité de la lance comporte un embout jetable, constitué par un manchon tubulaire monté à l'extrémité de la lance, par un thermocouple fixé au manchon tubulaire, et par des tronçons de fils de raccordement depuis le thermocouple jusqu'à un raccord destiné à coopérer avec les fils de liaison longeant la lance.1. Suction pyrometer lance carrying a thermocouple at its end and bordered by connecting wires from the thermocouple, characterized in that the end of the lance comprises a disposable tip, constituted by a tubular sleeve mounted at the end of the lance, by a thermocouple fixed to the tubular sleeve, and by sections of connecting wires from the thermocouple to a connector intended to cooperate with the connecting wires along the lance. 2. Lance selon la revendication 1, caractérisée en ce que ladite lance comporte un logement à son extrémité, et en ce que le manchon tubulaire est emmmanché dans ledit logement. 2. Lance according to claim 1, characterized in that said lance comprises a housing at its end, and in that the tubular sleeve is fitted into said housing.
FR8807374A 1988-06-02 1988-06-02 SUCTION PYROMETER LANCE Expired - Fee Related FR2632402B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8807374A FR2632402B3 (en) 1988-06-02 1988-06-02 SUCTION PYROMETER LANCE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8807374A FR2632402B3 (en) 1988-06-02 1988-06-02 SUCTION PYROMETER LANCE

Publications (2)

Publication Number Publication Date
FR2632402A3 true FR2632402A3 (en) 1989-12-08
FR2632402B3 FR2632402B3 (en) 1990-05-25

Family

ID=9366886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8807374A Expired - Fee Related FR2632402B3 (en) 1988-06-02 1988-06-02 SUCTION PYROMETER LANCE

Country Status (1)

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FR (1) FR2632402B3 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669593A (en) * 1951-11-28 1954-02-16 United States Steel Corp Aspirator thermocouple mounting for measuring the temperature of hot gases
US3275479A (en) * 1963-01-15 1966-09-27 Pyrotemp Corp Pyrometric lance apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669593A (en) * 1951-11-28 1954-02-16 United States Steel Corp Aspirator thermocouple mounting for measuring the temperature of hot gases
US3275479A (en) * 1963-01-15 1966-09-27 Pyrotemp Corp Pyrometric lance apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ADVANCES IN INSTRUM., vol. 32, no. 4, 1977, pages 203-209; R.L.BRANDEBERRY et al.: "Measurements of gas temperatures using aspirating type pyrometers" *
ELEKTROTECHNIEK/ELEKTRONICA, vol. 30, no. 8, April 1975, pages 252-254; A.P.BERGMAN: "Afzuigpyrometer met verwisselbare meetkop" *

Also Published As

Publication number Publication date
FR2632402B3 (en) 1990-05-25

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