Endoscopic inspection sensor for coke oven batteries

H - Electricity – 04 – N

Patent

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Details

H04N 7/18 (2006.01) C10B 41/00 (2006.01) C10B 45/00 (2006.01) F27D 21/02 (2006.01) G01N 21/84 (2006.01) G02B 23/24 (2006.01) G03B 37/00 (2006.01)

Patent

CA 2256737

The invention discloses an endoscope with inspecting head secured at the end of a longitudinally flexible support line which connects it to a control unit provided with means for humidifying the line, characterised in that the support line (2) is rigid when axially twisted while the inspecting head (1) is movable in axial rotation and formed by an assembly detachable in two portions: one permanent portion (11) secured at the end of the support line by a rotary joint (10) and housing a miniature camera (26), and an interchangeable portion (12), rigidly fixed to the said permanent portion, in the extension of the latter, by means of a detachable connection (44) and comprising a parietal opening (lateral or axial) provided with a wide angled eyepiece lens (23) followed by an optical line (25) conveying the quantity of light captured by the said lens towards the camera (26), and in that means (32 to 36) are included in the sensor to drive the inspecting head in axial rotation and ensure adjustment of its angular position relative to the support line. This sensor is highly adapted for visually inspecting coke oven flues.

L'endoscope selon l'invention, du type à tête d'inspection arrimée à l'extrémité d'une ligne de support souple longitudinalement qui la raccorde à une unité de manoeuvre pourvue de moyens d'humidification de la ligne, se caractérise en ce que la ligne de support (2) est rigide en torsion axiale alors que la tête d'inspection (1) est mobile en rotation axiale et formée par un assemblage démontable de deux parties : une partie permanente (11) arrimée à l'extrémité de la ligne de support par un joint rotatif (10) et abritant un appareil de prise de vues mignaturisé (26), et une partie interchangeable (12), rigidement fixée à ladite partie permanente dans le prolongement de celle-ci à l'aide d'un raccord démontable (44) et comportant une ouverture pariétale (latérale ou axiale) pourvue d'une lentille occulaire à grand angle (23) suivie d'une ligne optique (25) d'acheminement de l'énergie lumineuse captée par ladite lentille vers l'appareil de prise de vues (26), et en ce que des moyens (32 à 36) sont embarqués dans la sonde pour motoriser la rotation axiale de la tête d'inspection et assurer le réglage de sa position angulaire par rapport à la ligne de support. Cette sonde est parfaitement adaptée à l'inspection visuelle des carneaux de fours à coke.

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