FR2514896A1 - Thermal conductivity fault detecting probe for blast furnace - is insertable within cooling tube, such as to be in thermal contact with inner surface - Google Patents
Thermal conductivity fault detecting probe for blast furnace - is insertable within cooling tube, such as to be in thermal contact with inner surface Download PDFInfo
- Publication number
- FR2514896A1 FR2514896A1 FR8119729A FR8119729A FR2514896A1 FR 2514896 A1 FR2514896 A1 FR 2514896A1 FR 8119729 A FR8119729 A FR 8119729A FR 8119729 A FR8119729 A FR 8119729A FR 2514896 A1 FR2514896 A1 FR 2514896A1
- Authority
- FR
- France
- Prior art keywords
- wall
- blast furnace
- insertable
- cooling tube
- detecting probe
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/146—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations arrangements for moving thermometers to or from a measuring position
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
Sonde introductible dans les tubes à génération de flux de chaleur et mesure de température simultanées. Probe insertable into tubes with simultaneous heat flow generation and temperature measurement.
La présente invention est un instrument de mesure thermique actif, ou 1' tr tion assurant à la fois la pén8trat iuonlwdSxutnr Etuix ncalorifique dans la paroi contre
Laquelle elle est appliquée et la mesure de la température superficielle de cette paroi.The present invention is an active thermal measurement instrument, or 1 tr tion ensuring both the penetration iuonlwdSxutnr Etuix ncalorifique in the wall against
Which one is applied and the measurement of the surface temperature of this wall.
Certaines pièces massives, refroidies par des conduites de fluide engainées dans le corps de la pièce, sont soumises à des champs de contrainte engendrées par les champs de gradient de température. La presence, entre la masse et la surface externe du tube, de défauts de conductance thermique soit localisés soit étendus, entraine des surchauffes compromettant la tenue des pièces. Jusqu'ici la recherche de tels défauts, était assurée par des méthodes reproduisant le chauffage et le refroidissement de l'ensemble de la masse de la pièce, conduisant à des durées d'essai longues et conteuses, ce qui, pour des pièces souvent très lourdes,fabriquées en série, rend le contrôle systématique pratiquement impossible. Some massive parts, cooled by fluid lines sheathed in the body of the part, are subjected to stress fields generated by the temperature gradient fields. The presence, between the mass and the external surface of the tube, of localized or extensive thermal conductance faults, leads to overheating compromising the behavior of the parts. Until now, the search for such faults has been carried out by methods reproducing the heating and cooling of the whole mass of the part, leading to long and contested test times, which, for parts which are often very heavy, mass-produced, makes systematic control practically impossible.
Le dispositif suivant l'invention n'a pas cet inconvénient, il permet une détection rapide des défauts, de plus quand ceux-ci sont limités il en permet la localisation. The device according to the invention does not have this drawback, it allows rapid detection of faults, moreover when these are limited it allows their location.
Le dispositif selon l'invention se compose d'une cavité 1 logée dans le corps 7 de la sonde, en communication avec les orifices 2 et 3 par ou entre et sort le fluide d'excitation. Ces orifices sont raccordés en amont et en aval du dispositif à des flexibles bridés aux manchons 8 et 9. Les flexibles de modèle connu, canalisent le fluide d'excitation et permetteenR0dU\rn8troduire, de déplacer et de positionner le dispositif selon l'invention à l'intérieur du tube, suivant les degrés de liberté disponibles. La chambre 10 communique avec la réserve de fluide sous pression par l'intermédiaire d'une canule Il sur laquelle est bridé le capillaire d'alimentation.Quand le dispositif selon l'invention a la position désirée dans le tube, le fluide sous pression est introduit dans la chambre 10 expulsant le piston 4 qui, en s'arsboutant contre la paroi interne du tube appuie en même temps la cavité 1 et la sonde de température 6 contre la paroi diamétralement opposée. Le joint 5 assure l'étancheité du volume de la cavité 1 par rapport à la paroi. Ainsi fermement appliqué dans le tube, le dispositif-est prêt à recevoir le fluide d'excitation, dont l'admission, ainsi que la régulation de débit et de température, sont assurées par un dispositif connu.Le suivi de l'évolution en fonction du temps de la température de paroi mesurée par la sonde 6, permet,en la référant à des mesures sur échantillons,de détecter la présence de défauts de conductance thermique entre la surface extérieure du tube et la masse solide dans laquelle il est engainé. Les dimensions du dispositif selon l'invention sont en rapport avec le diamètre intérieur ainsi que le rayon de cintrage éventuel du tube. The device according to the invention consists of a cavity 1 housed in the body 7 of the probe, in communication with the orifices 2 and 3 by or between and exits the excitation fluid. These orifices are connected upstream and downstream of the device to hoses flanged to the sleeves 8 and 9. The hoses of known model, channel the excitation fluid and allow, to move, position and position the device according to the invention. inside the tube, according to the degrees of freedom available. The chamber 10 communicates with the reserve of pressurized fluid by means of a cannula II on which the supply capillary is clamped. When the device according to the invention has the desired position in the tube, the pressurized fluid is introduced into the chamber 10 expelling the piston 4 which, by arbouting against the internal wall of the tube presses at the same time the cavity 1 and the temperature probe 6 against the diametrically opposite wall. The seal 5 seals the volume of the cavity 1 relative to the wall. Thus firmly applied in the tube, the device is ready to receive the excitation fluid, the admission of which, as well as the regulation of flow and temperature, are ensured by a known device. from the time of the wall temperature measured by the probe 6, makes it possible, by referring to measurements on samples, to detect the presence of thermal conductance faults between the external surface of the tube and the solid mass in which it is sheathed. The dimensions of the device according to the invention are related to the internal diameter as well as the possible bending radius of the tube.
Le dispositif, objet de l'invention, peut entre utilisé pour contre ler la fabrication des plaques de refroidissement de hauts fourneaux tstaves- coolers), le facteur d'encrassement à l'extérieur de tubes dans des échangeurs où l'extérieur des tubes serait difficilement accessible, d'une manière générale pour rechercher la présence de défauts de conductance thermique à la surface extérieure de tubes engainés dans des solides. The device which is the subject of the invention can inter alia used to counter the manufacture of cooling plates for blast furnaces (coolers), the fouling factor outside of tubes in exchangers where the outside of the tubes would be difficult to access, in general to detect the presence of thermal conductance defects on the outer surface of tubes sheathed in solids.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8119729A FR2514896A1 (en) | 1981-10-19 | 1981-10-19 | Thermal conductivity fault detecting probe for blast furnace - is insertable within cooling tube, such as to be in thermal contact with inner surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8119729A FR2514896A1 (en) | 1981-10-19 | 1981-10-19 | Thermal conductivity fault detecting probe for blast furnace - is insertable within cooling tube, such as to be in thermal contact with inner surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2514896A1 true FR2514896A1 (en) | 1983-04-22 |
Family
ID=9263229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8119729A Withdrawn FR2514896A1 (en) | 1981-10-19 | 1981-10-19 | Thermal conductivity fault detecting probe for blast furnace - is insertable within cooling tube, such as to be in thermal contact with inner surface |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2514896A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065908A1 (en) * | 2007-11-23 | 2009-05-28 | Commissariat A L'energie Atomique | Method of measuring the internal surface temperature of a pipe and associated device |
| RU2751799C1 (en) * | 2020-09-09 | 2021-07-19 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" | Method for determining pipeline temperature and apparatus for implementation thereof |
-
1981
- 1981-10-19 FR FR8119729A patent/FR2514896A1/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009065908A1 (en) * | 2007-11-23 | 2009-05-28 | Commissariat A L'energie Atomique | Method of measuring the internal surface temperature of a pipe and associated device |
| FR2924218A1 (en) * | 2007-11-23 | 2009-05-29 | Commissariat Energie Atomique | METHOD FOR MEASURING THE INTERNAL SURFACE TEMPERATURE OF A TUBE AND ASSOCIATED DEVICE |
| JP2011504590A (en) * | 2007-11-23 | 2011-02-10 | コミッサリア ア レネルジー アトミーク エ オ ゼネルジ ザルタナテイヴ | Method and associated device for measuring the inner surface temperature of a pipe |
| CN101874198B (en) * | 2007-11-23 | 2012-04-18 | 法国原子能及替代能源委员会 | Method of measuring the internal surface temperature of a pipe and associated device |
| RU2472120C2 (en) * | 2007-11-23 | 2013-01-10 | Коммиссариат А Л'Энержи Атомик Э Оз Энержи Альтернатив | Method of measuring tube inner surface temperature and device to this end |
| US8727615B2 (en) | 2007-11-23 | 2014-05-20 | Commissariat à l'énergies alternatives | Method of measuring the internal surface temperature of a pipe and associated device |
| RU2751799C1 (en) * | 2020-09-09 | 2021-07-19 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" | Method for determining pipeline temperature and apparatus for implementation thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |