AUTOMATIC ODOURISER OF NATURAL GAS Russian patent published in 2009 - IPC G01F13/00 

FIELD: oil and gas production.

SUBSTANCE: invention is designed for implementation in gas, oil and other branches of industry in odourising of natural gases. The technical result is facilitated like follows: the automatic odouriser of natural gas consists of a service tank with a float valve and an operational tank; both tanks are interconnected with a pipeline. Also, at least one measuring cylinder is additionally installed into the service tank; through holes are made on the side surface of the measuring cylinder; a spring loaded back valve designed to shut-off holes of the measuring cylinder is assembled below the holes in the measuring cylinder and coaxially to it. The through holes of the measuring cylinder are located below the level of odourant in the service tank; the back valve is connected with the high pressure pipeline via the electromagnetic valve, while the opposite end of the measuring cylinder is connected to the low pressure pipeline; notably, there is similar low pressure of gas in the measuring cylinder and in the service tank.

EFFECT: simplification of design, reduced cost of odouriser, and extended implementation for wide range of gas consumption due to usage of high pressure for injecting odorant dose into low pressure pipeline; increased accuracy of dosing.

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