Measuring and testing – Specific gravity or density of liquid or solid – Freely vertical reciprocable float with carried indicium
Patent
1986-06-13
1988-01-26
Chapman, John
Measuring and testing
Specific gravity or density of liquid or solid
Freely vertical reciprocable float with carried indicium
73 61R, 7386383, 366140, 366142, G01N 912, G01N 936
Patent
active
047209984
ABSTRACT:
A crude oil sampling system that obtains and stores a representative sample of crude oil as the oil flows from a stock tank into a sales line. As crude oil flows from the storage tank during a finite period of time, a much smaller flow is diverted to a closed sample vessel. Accordingly, small sequential samples of the crude flowing from the stock tank is removed so that a true sample is protected within the closed vessel. Hence, the crude contained downstream of the stock tank changes in composition over a period of time while the crude contained within the sample vessel remains unchanged. When it is desired to evaluate the quality of the sample contained within the closed vessel, a circulation pump is energized and the contents of the sample vessel is thoroughly mixed. A hydrometer, including a thermometer associated therewith, is placed within a special gravity sample chamber which heretofore has been isolated from the sample vessel. Valves are opened to admit the homogenous sample into the gravity chamber, whereupon the hydrometer is read through a transparent wall of the gravity chamber. A sample is also withdrawn from the homogenous mixture and tested for sediments and water. The entire apparatus is easily cleaned and made ready to commence accumulating the next crude oil sample.
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Bates Marcus L.
Chapman John
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