METHOD AND APPARATUS FOR MEASURING CHARACTERISTICS OF A HEATED FLUID IN A HOSTILE ENVIRONMENT
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United States of America Patent
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Issued Date -
Oct 27, 2016
app pub date -
Mar 4, 2016
filing date -
Apr 24, 2015
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Abstract
In the production of petroleum-based products in a refinery, viscosity and density are accurately and repeatedly measured at an elevated temperature, sometimes in a hostile environment. A densitometer and viscometer are located in a non-purged enclosure, but the electrical controls that could cause a spark to ignite fumes are located in a purged enclosure with connections there between. A heat pipe extending from the purged enclosure to the non-purged enclosure accurately controls the temperature of a sample during testing. For difficult to handle petroleum-based products such as asphalt, a sample conditioning system prepares the sample prior to testing.
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