Patent UA-95698-C2 (UA)
Title: Baro-compensated electrochemical measuring gas analyzer (variants)
Inventor: KIRIUSCHENKO IHOR HEORHIIOVYCH
IPC: G01N27/48
Filed: 2009-12-28
Abstract: Baro-compensated electro-chemical gas analyzer relates to engineering of measurement of content of dissolved gas in liquid and gaseous media, it is intended mostly for use in oceanographic apparatuses and in mining- in chemical industry, in different technological and ecological systems for measurement and control of content of dissolved gas in media under investigation. By the first variant such gas analyzer (fig. 1) has body 91), hermetic chamber (12) that has capillary (13) and is filled with electrolyte, cathode (16) and anode (17), ot anode system that are in contact with electrolyte and are connected to registration device(18) as transformer of cathode current to output signal. Cathode (16) is placed at outlet from capillary (13) to outer medium, and those are separated from outer medium with selectively-permeable membrane (6) as a circle that is tightened to cathode surface of gas analyzer and is fixed there in closed line with cover (7) that is connected to coupling nut (10). The gas analyzer includes baro-compensator (11) as an elastic element that divides electrolyte in the chamber (12) from the environment, at that the capillary (13) is arranged in continuous flow element (3) one end of which with seal (2) is rigidly or with possibility of displacement installed in the body (1) and the other one – with gasket (4) goes through the opening of the bushing (5) that by threading is installed in the cover (7) that is installed with packing in coupling nut (10) that is by threading installed on the continuous flow element (3). The end section of the membrane (6) is pressed between the shoulder of the cover (7) and the end surface of the bushing (5). The anode (17) or anode system are placed in capillary (13) or in chamber (12) that is space formed by continuous flow element (3) and the body (1) and separated from the outer medium with baro-compensator (11) as elastic wall, for instance rubber sleeve that is fixed on the body (1) and continuous flow element (3) Space formed by continuous flow element (3), bushing (5), cover (7) and coupling nut (10) is filled with electro-insulation fluid (15) and separated from outer medium with additional baro-compensator (14) as an elastic wall, for instance a rubber sleeve fixed on the body (1) and coupling nut (10). Second variant of gas analyzer (fig. 2) differs from the first by the fact that continuous flow element (3) with gasket (2) and with possibility of displacement is installed in the body (1) and with gasket (4) goes through the opening of the bushing (5) hat has radial openings and with one end with sealing (6) is installed with possibility of displacement on the body (1) and with the other one – by threading is installed on the body (1). The end section of the membrane (7) is pressed between the shoulder of the cover (8) and the end surface of the bushing (5). Anode (18) or anode system are placed in the capillary (14) or in chamber (13) that is space formed with continuous flow element (3), bushing (5) with its radial opening and the body (1), and separated from outer medium with baro-compensator (12) as elastic wall that tightens radial openings of the bushing (5), for instance, as rubber sleeve fixed on the bushing (5). The coupling nut (11) has radial openings placed near the radial openings of the bushing (5). Space formed with baro-compensator (12), bushing (5), cover (8), coupling nut (11) with its radial openings and the body (1) is filled with electro-insulated liquid (16), for instance oil, and separated from outer medium with additional baro-compensator (15) as elastic wall that tightens radial openings of the coupling nut (11) and threaded joint the body (1) – coupling nut (11), for instance as a rubber sleeve fixed on the body (1) and coupling nut (11).