System for gas-chromatographic analysis of air samples

FIELD: physics.

SUBSTANCE: system for gas-chromatographic analysis of air samples has two chromatographs 1 with plasma ionisation detectors 2, a chromatograph 4 with a heat conductivity detector 5, chromatographic packed columns 12 filled with an adsorbent, concentrators 13 installed in chromatographs 1 and 4. The system also includes an information conversion device 14 connected to a computer 15, having special software. The system also includes a device 8 for obtaining deionised water, a hydrogen generator 9, three gas preparation units 10 with three control panels 11, two electrometer amplifiers 3 and detector power supply 6. The device 8 for obtaining water is connected to the hydrogen generator 9 which is connected to each gas preparation unit 10 of chromatographs 1 with plasma ionisation detectors 2 through the control panel for feeding hydrogen 16, and to the detector power supply 6, connected to the chromatograph 4 with the heat-conductivity detector 5, and the two electrometer amplifiers 3, connected to two chromatographs 1 with plasma ionisation detectors 2, are connected to connecting cables from control panels 11 and the information conversion device 14.

EFFECT: providing quality and accurate estimation of content of hazardous impurities and concentration thereof in air samples, improved operational qualities of the system.

2 dwg

 

The invention relates to the field of gas chromatography, namely to determine the content of harmful impurities and their concentrations in the air samples taken, for example, bench testing of the compressor of a gas turbine aircraft engine.

A known system for gas chromatographic analysis of air samples containing two chromatograph with a plasma-ionization detectors, chromatograph with thermal conductivity detector, chromatographic Packed column filled with the adsorbent, the hub with the selected air samples and the conversion device information associated with a computer with special software [1]. This unit is closest to the invention to the technical essence and the achieved result and accepted by the applicant as a prototype.

The disadvantage of this complex is low quality and accuracy of the assessment of the content of harmful impurities and their concentrations in the air samples, and low performance.

The technical result of the proposed invention is the provision of quality and accurate assessment of the content of harmful impurities and their concentrations in the air samples, as well as improving performance of the complex.

This technical result of the invention is achieved by tocomplex for gas chromatographic analysis of samples of air, contains two chromatograph with a plasma-ionization detectors, chromatograph with thermal conductivity detector, chromatographic Packed column filled with the adsorbent, the hub with the selected air samples and the conversion device information associated with the computer with the special software supplied by the device receiving deionized water, hydrogen generator, three blocks gas with three control panels, two amplifiers Electrometry, power detector, the device receiving waters associated with the hydrogen generator, which is connected with each preparation unit gas chromatographs with plasma-ionization detectors, and by the power detector connected to the chromatograph with a heat conductivity detector and two amplifiers to electrometer connected with two chromatographs with plasma-ionization detectors, summed up the cables-connectors from control panels and unit conversion information.

The essence of this invention is illustrated by drawings, where figure 1, 2 shows a General view of the complex and the hub.

Complex for gas chromatographic analysis consists of: two chromatographs 1 "COLOR-800" plasma-ionization detectors 2 (PID) with two amplifiers Electrometry 3 (BID-45-2)designed the La analysis of air samples for the content of vapors and aerosols, oils, vapor fuel, ketones, aldehydes and aromatic hydrocarbons; one chromatograph 4 "COLOR-800 with detector 5 thermal conductivity (RTA) with power supply detector 6 (BPD-104)intended for analysis of air samples for the content of carbon monoxide "CO"; dosing unit 7, unit 8 to obtain deionized water of Aquarius, the hydrogen generator 9 (GWh-M) three gas preparation units 10 (BPG-186), three control panels 11 (CP-09), chromatographic Packed columns 12 filled with the adsorbent, the hub 13 with the selected air samples, the conversion device information 14 (PFI-18), the computer 15, the control flow of hydrogen 16 (UPV) and specialized software - measuring and computing complex "Polychrome" and the program "Aviagra 2.0", allowing you to measure and process the received signals and to calculate the concentration of harmful impurities.

Complex for gas chromatographic analysis of air samples is as follows:

to connect the parts of the complex between them. To get to the unit gas treatment 10 (PLU) chromatograph with 4 accidents 5 gas "helium"and blocks gas treatment 10 (PLU) chromatographs 1 with plasma-ionization detectors 2 (PID) gases helium, hydrogen and air. Pour distilled water into the device 8 for receiving the deionized water In the shares". Next, from the "Aquarius" 8 pour deionized water into hydrogen generator 9. Thus obtained gas "hydrogen" is supplied via a supply control panel of hydrogen 16 (UPV) in the preparation of gases 9 (PLU) chromatographs 1 PID 2. To carry out the calibration of the chromatograph 1 and 4 on the measurement of the respective kinds of harmful impurities according to the technical documentation. Bring chromatographs on the operating mode using the remote control 11, according to the technical documentation. To turn on the computer 15 and the conversion device information 14 (DFI). To run it on the computer 15 specialized software. To install the hub 13 with the breakdown of the air in the evaporator 17 chromatographs 1 or 4 depending on the dimensions of the respective kinds of harmful impurities and, using specialized software to carry out measurements in accordance with the terms of the technological documentation. The digitized signals from the chromatographs 1 and 4 through the unit conversion information 14 (DFI) coming into the computer 15 and the results are displayed in the form of a chromatogram. After the cycle is complete, remove the hub 13 of chromatographs and to process the measurement results.

The use of this invention will provide quality and accurate assessment of the content of harmful impurities and their concentrations in the air samples, and so is e to improve the service quality of the complex.

Sources of information

1. Magazine "Engines" №3 (27) "New tools for monitoring the composition of the atmosphere aircraft", page 16, 2003 - the prototype.

Complex for gas chromatographic analysis of air samples containing two chromatograph with a plasma-ionization detectors, chromatograph with thermal conductivity detector, chromatographic Packed column filled with the adsorbent, the hub with the selected air samples and the conversion device information associated with a computer with special software, characterized in that it is equipped with a device receiving deionized water, hydrogen generator and three blocks for the preparation of gas with three control panels, two amplifiers Electrometry, power detector, the device receiving waters associated with the hydrogen generator, which is connected with each preparation unit gas chromatographs with PID through remote control the flow of hydrogen, and by the power detector connected to the chromatograph with thermal conductivity detector and two amplifiers-electrometer connected with two chromatographs with plasma-ionization detectors, summed up the cables-connectors from control panels and unit conversion information.



 

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FIELD: physics.

SUBSTANCE: system for gas-chromatographic analysis of air samples has two chromatographs 1 with plasma ionisation detectors 2, a chromatograph 4 with a heat conductivity detector 5, chromatographic packed columns 12 filled with an adsorbent, concentrators 13 installed in chromatographs 1 and 4. The system also includes an information conversion device 14 connected to a computer 15, having special software. The system also includes a device 8 for obtaining deionised water, a hydrogen generator 9, three gas preparation units 10 with three control panels 11, two electrometer amplifiers 3 and detector power supply 6. The device 8 for obtaining water is connected to the hydrogen generator 9 which is connected to each gas preparation unit 10 of chromatographs 1 with plasma ionisation detectors 2 through the control panel for feeding hydrogen 16, and to the detector power supply 6, connected to the chromatograph 4 with the heat-conductivity detector 5, and the two electrometer amplifiers 3, connected to two chromatographs 1 with plasma ionisation detectors 2, are connected to connecting cables from control panels 11 and the information conversion device 14.

EFFECT: providing quality and accurate estimation of content of hazardous impurities and concentration thereof in air samples, improved operational qualities of the system.

2 dwg

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