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Liquid Nitrogen – Safe Handling Fatality File – Spanish
Liquid Nitrogen – Safe Handling Fatality File – Spanish
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Seis empleados mueren por una fuga de nitrógeno líquido

A las 10:13 a. m. del 28 de enero de 2021, tres empleados de mantenimiento se encontraban en una cámara frigorífica solucionando un problema relacionado con piezas de pollo cocidas que no se congelaban correctamente y que salían del congelador de inmersión y espiral Messer de nitrógeno líquido. El congelador de inmersión y la cubeta interna del congelador estaban diseñados para contener un baño de nitrógeno líquido para congelar rápidamente el pollo. Uno de los empleados de mantenimiento, que estaba solucionando el problema del congelador, utilizó una herramienta para doblar hacia arriba la parte inferior del tubo de inmersión del sistema de burbujeo de acero inoxidable dentro de la cuba del congelador de inmersión.

El sistema de burbujeo formaba parte del sistema de control de líquidos que mantenía el nivel de nitrógeno líquido en la cuba del congelador de inmersión. Poco después de que se reiniciara el congelador, el nitrógeno líquido de la cuba del congelador de inmersión se derramó sobre el suelo debido al tubo de inmersión dañado. El nitrógeno líquido que se derramó del congelador se convirtió en vapor debido a los cambios de temperatura y presión y desplazó el oxígeno del aire.

Los tres empleados de mantenimiento sucumbieron a la atmósfera deficiente en oxígeno dentro de la cámara frigorífica. El superintendente de la planta, un empleado de mantenimiento y un técnico de control de calidad fueron a la cámara frigorífica e intentaron ayudar a los empleados, pero también murieron debido a la atmósfera deficiente en oxígeno.

Fuente: Osha.gov

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