RU3647U1 - GAS ANALYZER - Google Patents

Abstract

A gas analyzer comprising a carrier gas source, a pulsed furnace with a crucible, a pulser furnace gas flow switch, a gas conversion device, a detectable gas detector, characterized in that it is further provided with a gas conversion device, a detector, a carrier gas source and two switches gas flows, one of which is installed at the inlet of the pulse furnace and connected to the sources of carrier gas, and the other at the output of the pulse furnace and connected to devices for converting the analyzed gas and corresponding to the analyzed gas detectors.

Description

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A useful model for devices for physical and chemical analysis of substances, in particular for devices for the determination of helium in metals and inorganic materials, and can be used to assess the quality of metallurgical production.

The huRIBA gas analyzers of various models are known. A gas analyzer (model EMGA-621/5) comprises a carrier gas source, a pulse furnace with a crucible, a gas conversion device in which hydrogen is oxidized to water, hydrogen is recovered from water, carbon monoxide is oxidized to carbon dioxide, and then absorbed, and detector (katharometer).

The disadvantage of the analyzer is that only one hydrogen gas can be detected on it, in this case, the carrier gas can be either argon or nitrogen.

On another HORIBA model (EMGA-650/550) two gases are detected: oxygen and nitrogen, in which case the carrier gas is helium. The analyzer also consists of a carrier gas source, a pulse crucible furnace, a gas conversion device, in the form of a furnace with copper oxide and tubes with ascarite and magnesium perchlorate, detectors (katharometer, infrared absorption),

It is also known a device for determining the gas content in metals (Auth, OBID. M1374109 cells, 1986, Prototype,) The gas analyzer contains a crucible, alternately connected a gas switch in the furnace, a device for converting gas in the form of a tube with an oxidizing agent, chromotogr | column and detector.

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the proposed technical solution eliminates the indicated disadvantages to

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The essence of the technical solution is that an A.N. 11 gas gas containing a carrier gas source, a pulsed furnace with a crucible, a gas flow switch of a pulsed furnace, a device for gas conversion, the detector is additionally equipped with a device for converting the detected gas to Hpffl, a detector. the source of the carrier gas z with two switches of gas flows, one of which is installed at the inlet of the pulse furnace and connected to the sources of carrier gas, and the other at the output of the pulse furnace and connected to devices for converting Nia sample gas and the analyte gas detektoragli appropriate.

Distinctive features are:

- an additional source of carrier gas, a device for converting the analyzed gas and a detector;

- gas flow switches installed at the inlet and outlet of a pulsed furnace and connecting it with two sources of carrier gas and devices for converting the analyzed gas and the detectors corresponding to the analyzed gas.

The essence of the utility model is illustrated by the device diagram. The gas analyzer consists of two sources of carrier gas 1 and 2 of helium and nitrogen, connected by pipelines with a switch of gas flows U, the outputs of which are connected to the input of the pulse furnace 4 through the switch-gas streams 5 of the pulse furnace. The output of the pulse furnace through the switch 5 by means of the gas flow switch 6 is connected to two analyzers of the analyzed gas 7 and 8 and the detectors 9 and 10 corresponding to the analyzed gas. The gas flow switches are malfunctioning, for example, electromagnetic pneumatic converters.

All devices are interconnected by pipelines, the device: gearboxes, flow regulators, pressure sensors, etc. are not scattered in the diagram.

The gas analyzer p is as follows. Before starting the analysis, select switches 3 and 6 to the position that ensures the supply of the carrier gas corresponding to the analyzed gas. (For hydrogen, the carrier gas is nitrogen, for oxygen and nitrogen, the carrier gas is helium). Nitrogen carrier gas is supplied from source i through switch 3 to the input of the pulse furnace 4 through switch 5 (in this case, the carrier gas from the source is blocked by switch 3). The switch 5 degasses the working volume of the pulse furnace 4 with an increased flow of carrier gas and under the volume of the pulse furnace 4 to the detector during reductive melting of the sample. After degassing the volume of the pulse furnace 4, a sample of the test material is placed in the crucible and heated. The switch о when heating the sample connects the volume of the pulse furnace through the gas flow switch 6 to the gas conversion device 7 (for example, a Schütze reagent tube, where 5 carbon monoxide is oxidized to carbon dioxide and a tube with ascari to absorb carbon biorgis and magnesium perchlorate to absorb water) and a detector 9 (katharometer) for the quantitative determination of the hydrogen content in the metal. In this case, the breaker 6 blocks the flow of the analyzed gas to the device for converting gas 8 and 10. When determining If the sample contains another gas, for example, nitrogen, the source of the carrier gas S (helium) is connected. a device for converting gas 8 (for example, a furnace with copper oxide and a tube with ascadite and magnesium perchlorate) and a detector 10 (for example, a katharometer). And the source of the carrier carrier 1, for the conversion of gas 7, and the detector 9 are blocked.

Claims (1)

A gas analyzer comprising a carrier gas source, a pulsed furnace with a crucible, a pulser furnace gas flow switch, a gas conversion device, a detectable gas detector, characterized in that it is further provided with a gas conversion device, a detector, a carrier gas source and two switches gas flows, one of which is installed at the inlet of the pulse furnace and connected to the sources of carrier gas, and the other at the output of the pulse furnace and connected to devices for converting the analyzed gas and corresponding to the analyzed gas detectors.