IN-SITU DIELECTRIC MEASUREMENT DEVICE UNDER HIGH PRESSURE OVER A WIDE TEMPERATURE RANGE Russian patent published in 2022 - IPC G01R27/26 G01K13/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring equipment, in particular to dielectric spectroscopy, and is intended for measuring the properties of clathrate hydrates under the pressure of a hydrate-forming gas. The substance of the claimed technical solution is a device for measuring in-situ dielectric properties under high pressure in a wide temperature range, consisting of a measuring cell, a hydrate-forming gas supply channel; external purge chamber, temperature sensor, dielectric meter, pressure regulator, pressure sensor, hydrate forming gas cylinder, cooling system. In this case, the measuring cell consists of an aluminum body equipped with an aluminum cover with a rubber sealing ring, a sample chamber formed by an aluminum body and a cover, an upper brass electrode, a lower brass electrode with a side that is also a protective ring, fluoroplastic inserts, bolt holes with bolts placed with the possibility of providing rigid fixation of the lid to the cell body; hydrate-forming gas supply channel of the measuring cell, located in the aluminum cover. The upper brass electrode is mounted in an aluminum cover, and the lower brass electrode with a rim is mounted in the wall of the aluminum body of the measuring cell through fluoroplastic inserts. At the same time, holes are made along the perimeter of the annular ledge, located perpendicular to the plane of the lower brass electrode, with the possibility of passage of a hydrate-forming gas through them. The hydrate-forming gas supply channel of the measuring cell and the upper aluminum cover are insulated with a fluoroplastic insert, which acts as a seal. A cylinder with a hydrate-forming gas is connected to the hydrate-forming gas supply channel of the measuring cell through a hydrate-forming gas supply channel, a pressure regulator and a pressure sensor. The measuring cell is placed in an external purge chamber, to which a line for supplying gaseous nitrogen from the cooling system is connected; at the same time, a temperature measurement sensor and a dielectric constant meter are connected to the measuring cell.

EFFECT: improved measurement accuracy.

1 cl, 9 dwg