Pressure transmitter with high pressure isolator mounting...

G - Physics – 01 – L

Patent

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Details

G01L 19/00 (2006.01) G01L 9/00 (2006.01) G01L 13/00 (2006.01) G01L 19/06 (2006.01)

Patent

CA 2217019

A pressure transmitter (10) includes an isolator mounting assembly (12, 150) for isolating process fluid from an interior cavity (22) of the pressure transmitter (10). The isolator mounting assembly (12, 150) includes an isolator plug (66, 152) for receiving the process fluid line pressure and coupling the line pressure to a sensor cavity (32) formed by a header (68, 154) joined to a distal end of the plug (66, 152). A ring member (70) is attached to the header (68, 154) and the distal end of the plug (66, 152) to reinforce the joint formed between the isolator plug (66, 152) and the header (68, 154). In another embodiment, the isolator mounting assembly (150) includes a base (154) and a support (181) having first and second opposed ends (190, 202). The first end (190) is rigidly bonded to the pressure sensor (184) while an epoxy joint (200) joins the second end (202) of the support (181) to the base (154).

L'invention concerne un transmetteur de pression (10) comportant un ensemble de montage isolant (12, 150) destiné à isoler le fluide de traitement par rapport à une cavité intérieure (22) du transmetteur de pression (10). Cet ensemble de montage isolant (12, 150) comprend un obturateur isolant (66, 152) destiné à recevoir la pression de la conduite de fluide de traitement et à coupler cette pression à une cavité de capteur (32) formée par un distributeur (68, 154) relié à une extrémité distale de l'obturateur (66, 152). Un élément annulaire (70) est fixé au distributeur (68, 154) et à l'extrémité distale de l'obturateur (66, 152) pour renforcer le joint formé entre ledit obturateur (66, 152) et le distributeur (68, 154). Dans un autre mode de réalisation, l'ensemble de montage isolant (150) possède un socle (154) et un support (181) présentant des première et deuxième extrémités opposées (190, 202). La première extrémité (190) est solidarisée avec le capteur de pression (184) tandis qu'un joint époxy (200) raccorde la deuxième extrémité (202) du support (181) au socle (154).

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