SYSTEM FOR AUTOMATED SELECTION, PREPARING AND DELIVERY OF FILTRATE SAMPLE Russian patent published in 2008 - IPC G01N1/10 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to mining, concentrating, metallurgical and chemical fields of industry and can be used for measurement of physical or other characteristics. The system of automated selection, delivery and preparation of filtrate samples contains a filter, installed in a pressure tight sample selecting reservoir, connected with a storage reservoir via a sample receiving pipe and a direct valve. The direct valve is made as an uncontrolled ball or leaf-type valve. The storage reservoir is equipped with the first level detector. The system is equipped with a controlled source of vacuum pressure, which contains the first electro magnetic valve included into a pipeline of compressed air and an ejector direct channel, and it also contains the second electromagnetic valve and a selection valve. The system has transport pipes, a sample receiving reservoir, a control unit, a pressure tight sample selecting reservoir and an analyser. A receiving dispatching station is included into the system; the said station is designed as a pressure tight reservoir, equipped in its lower portion with a two way diaphragm valve, and at its upper portion it is equipped with a float gate valve located in its cylinder portion. The sample receiving station is equipped with a nipple, supplying water used for flushing out the line of sample delivery. A filtration unit between the sample selector and the receiving dispatching station is included into the system. The filtration unit consists of a pressure tight overflow reservoir with a filter element installed therein, of a controlled diaphragm bottom valve, of an overflow nipple, of a diaphragm dump valve and of the filtrate storage reservoir for following regeneration of the filter element. The filter element is pressure tight connected with the filtrate storage reservoir for following regeneration of the filter element. The controlled diaphragm bottom valve is connected to the lower part of the overflow reservoir. The upper part is designed with an overflow nipple connected with the diaphragm dump valve.

EFFECT: facilitates reliability of a sample selection and its credibility.

3 cl, 1 dwg