Patent EA-000473-B1 (EA)
Title: Device and method for the removal and determination of volatile or dissolved components of liquids or gases
IPC: B01D63/06
Filed: 1996-08-30
Abstract: 1. A device for the determination of volatile or dissolved components in liquids or gases comprising a cylindrical main body with permeation channels in its external surface for a carrier fluid, a permeation membrane located over the channels, carrier-fluid feed and return channels and sensors, characterized in that the permeation channels are disposed in one or more sectors on the surface of the main body, each sector having a feed groove, a return groove and parallel connecting channels running from the feed groove to the return groove; each sector is connected by the feed groove and a separate feed channel to a carrier-fluid inlet; and each sector is connected by the return groove and one or more return channels to a carrier-fluid outlet. 2. The device according to Claim 1, characterized in that the sectors are provided with connecting/disconnecting means and form stepped arranged permeable surface. 3. The device according to Claim 1, characterized in that thermoregulation grooves are disposed in the main body to dilute carrier fluid enriched with determined components, said thermoregulation grooves are provide with a specially installed by-pass for the carrier fluid. 4. The device according to Claims 1-3, characterized in that a temperature sensor is arranged directly under the permeation membrane and located at a certain distance from the measuring sensors. 5. The device according to Claims 1-4, characterized in that the return channel is connected with the measuring sensor to measure concentration of the determined components. 6. The device according to Claims 4-6, characterized in that a second temperature sensor is provided to monitor the temperature of the carrier fluid surrounding the sensor. 7. The device according to Claim 6, characterized in that a heater is provided to regulate the temperature of the carrier fluid surrounding the sensor. 8. The device according to Claim 1, characterized in that the sum of the cross-sectional areas of the permeation channels is equal to the cross-sectional area of the feed and return channels. 9. A method of determination of volatile or dissolved components in liquids or gases using the device according to Claims 1-6, characterized in that the carrier fluid is fed into the main body of the device via the carrier fluid inlets to several sectors using separate feed channels to each sector and within sectors the carrier fluid passes one feed channel, permeation channels and one return channel, while the carrirer fluid, containing volatile or dissolved components, is fed to the thermo-stabilized sensor from the return channel via the return channel in the main body for quantitative determination of concentration. 10. The method according to Claim 9, characterized in that the carrier fluid is fed to several sectors in accordance with the required amount of the carrier fluid at the permeation surface by feeding it via a separate feed channel for each sector. 11. The method according to Claim 10, characterized in that the carrier fluid is fed to several sectors via a separate for each sector feed channel and discharged via separate for each sector return channel, wherein the obtained results are monitored to one or several sensors or analyzers outside the device. 12. The method according to Claim 9, characterized in that a portion of the carrier fluid is removed via the by-pass from the feed channel prior to the contact of the carrier fluid with the permeation membrane, the temperature of which is brought in the thermoregulation channels to the temperature corresponding to the temperature of the carrier fluid after contact with the permeation membrane after which the carrier fluid is fed into a mixing chamber, where the carrier fluid, enriched by a determined component, is mixed with the carrier fluid free from determined components and thus obtained mixture is delivered to e sensor. 13. The method according to Claim 9, characterized in that the carrier fluid is fed to several sectors arranged under different permeation membranes having different parameters of the substance transfer.