CN201368837Y

CN201368837Y - Tubular carbon-sulfur united-test analyzer

Info

Publication number: CN201368837Y
Application number: CNU2009200377553U
Authority: CN
Inventors: 夏赞贵; 邢小桃
Original assignee: Nanjing No4 Analytical Instrument Co ltd
Current assignee: Nanjing No4 Analytical Instrument Co ltd
Priority date: 2009-01-24
Filing date: 2009-01-24
Publication date: 2009-12-23
Anticipated expiration: 2019-01-24

Abstract

A tubular carbon-sulfur united-test analyzer comprises a tubular combustion furnace, an analyzing box and a control box, wherein the output terminal of the tubular combustion furnace is connected with the analyzing box; the analyzing box comprises a gas volumetric method carbon test module and an iodometry sulfur test module; the iodometry sulfur test module comprises a photocell and a sulfur cup; the photocell is used for determining the color of solution in the sulfur cup; the output messages of the gas volumetric method carbon test module and the iodometry sulfur test module are input into the control box through sensors respectively; and the control box controls the two modules simultaneously. The tubular carbon-sulfur united-test analyzer adopts the tubular combustion furnace to burn a sample and adopts a full-automatic control and analysis displaying mode, so that the analyzer has a large range of measurement materials, the measurement is free from artificial factors and errors and the displaying circuit avoids mistaken reading caused by scale conversion. The speed, the precision and the stability of the analyzer are greatly improved, and the analyzer can realize unquantitative determination in coordination with an electronic balance so as to greatly reduce errors caused by weighing.

Description

Tubular type carbon sulphur translocation analyser

Technical field

The utility model is the ultimate analysis instrument, is a kind of tubular type carbon sulphur translocation analyser.

Background technology

Existing carbon and sulfur analytical instrument, the using gases volumetric method is analyzed carbon, iodimetric analysis sulphur, generally with tubular furnace or electric arc furnaces.The analyser that uses electric arc furnaces is because the wandering of an arc that produces during the high-frequency ac power striking and the instability of high pressure, make analysis precision and stable difficulty be guaranteed, the electromagnetic interference (EMI) that high-frequency and high-voltage brought simultaneously produces electric network source again and disturbs and pollution; Burning sample can not use stationary temperature during on the other hand owing to the use electric arc furnaces, and the generation of temperature needs the combustion heating of sample self, make instrument certain requirement be arranged to environment temperature, so guarantee the analysis precision and the stability of instrument, almost depend on operating personnel's skill level and relevant knowledge level.

And the existing analyser that uses tubular furnace, the artificial type gas capacity instrument analytic sample of many employings, because employed utensil is fully by pure manual operations, the result is decided by people's range estimation, therefore, use this quasi-instrument also must possess very high skill level and practical operative ability, otherwise be difficult to give full play to the effect of instrument.

Summary of the invention

Problem to be solved in the utility model is: existing carbon and sulfur analytical instrument precision can't guarantee, needs a kind of performance, the better carbon and sulfur analytical instrument of precision.

The technical solution of the utility model is: tubular type carbon sulphur translocation analyser, comprise the tubular type combustion furnace, analyze case and control box, the output of tubular type combustion furnace connects analyzes case, analyze case and comprise gas volumetric method carbon determination module and iodimetric titration survey sulphur module, be provided with gas solenoid valve between gas volumetric method carbon determination module and tubular type combustion furnace, iodimetric titration is surveyed the sulphur module and is comprised photoelectric cell and sulphur cup, photoelectric cell is measured solution colour in the sulphur cup, gas volumetric method carbon determination module and iodimetric titration are surveyed the output of sulphur module respectively by sensor input control box, control box comprises the AD sample circuit, control circuit and data processing circuit, the AD sample circuit, control circuit, data processing circuit connects successively, the wherein break-make of gas solenoid valve between control circuit pilot-gas volumetric method carbon determination module and the tubular type combustion furnace, and control sulphur cup is surveyed the addition of sulphur volumetric soiutions.

The utility model also is provided with electronic balance, and electronic balance connects control box, and the control circuit of control box is the watchdog microcontroller circuit, and control box also is provided with display circuit and print circuit, and display circuit is connected data processing circuit with print circuit.

The utility model is mainly used in the carbon in metal and nonmetallic materials, organism and the inorganics, sulphur two elements is carried out quantitative test, the scope of application is extensive, its principle is to utilize the characteristic of the constant temperature and pressure of tubular furnace burning sample that sample is led to the oxygen burning, carry out quantitative test and analyze carbon dioxide and the sulphuric dioxide that case generates burning automatically under the control of control box, be both and analysis result is shown or print.

The utility model adopts the tubular furnace burning sample, and the Automatic Control analysis shows that it is big to measure material ranges, simultaneously because the use of tubular furnace constant temperature, constant voltage makes the conversion of carbon dioxide, sulphuric dioxide discharge more abundant; Gas volumetric method carbon determination module by the control box FEEDBACK CONTROL makes the mensuration of carbon be completely free of artificial factor, and iodimetric titration survey sulphur module is utilized the photoelectric colorimetry principle, the collimation error of also having avoided artificial observation color and having brought, the display circuit of numeral or liquid crystal have been avoided owing to misreading that scale converts and caused; Therefore the utility model is speed, precision, stablely all is greatly improved, and cooperates the use of electronic balance simultaneously, can realize the mensuration of non-quantitative, has significantly reduced the error that weighing brought.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

As shown in Figure 1, the utility model comprises the tubular type combustion furnace, analyze case, control box and electronic balance, the output of tubular type combustion furnace connects analyzes case, analyze case and comprise gas volumetric method carbon determination module and iodimetric titration survey sulphur module, be provided with gas solenoid valve between gas volumetric method carbon determination module and tubular type combustion furnace, iodimetric titration is surveyed the sulphur module and is comprised photoelectric cell and sulphur cup, photoelectric cell is measured solution colour in the sulphur cup, gas volumetric method carbon determination module and iodimetric titration are surveyed the output of sulphur module respectively by sensor input control box, control box comprises the AD sample circuit, control circuit, data processing circuit, liquid crystal display circuit and print circuit, the AD sample circuit, control circuit, data processing circuit connects successively, liquid crystal display circuit is connected data processing circuit with print circuit, the break-make of gas solenoid valve between control circuit pilot-gas volumetric method carbon determination module and the tubular type combustion furnace wherein, and survey the addition of sulphur volumetric soiutions according to the photoelectric cell parameter control sulphur cup that the iodimetric titration that obtains is surveyed the sulphur module.

The utility model utilizes gas solenoid valve under the control of DC voltage, and the principle of open and close gas circuit freely according to gas volumetric method, with the break-make that the Single Chip Microcomputer (SCM) program of control circuit is come the pilot-gas solenoid valve, makes the carbon determination full automation; Iodimetric titration is surveyed the sulphur module and is utilized the photoelectric colorimetry principle, the mensuration of solution colour in the sulphur cup is controlled the addition of volumetric soiutions by photoelectric cell, make former cause range estimation and fixed action, control by electronic signal fully, reduced personal error, sharp again sensor transmissions data, the result that carbon, sulphur are measured shows, like this collimation error that has caused with regard to having reduced original manual measurement to read scale.In original carbon and sulfur analytical instrument analytic process, the analytic sample sample weighting amount must the same could guarantee analysis precision, and because sample is a solid granular, sample weighting amount is difficult to guarantee the same; The utility model has been eliminated the man's activity of obtaining in the analytical parameters process, in order further to improve the precision of analyser, adopt electronic balance to claim sample, can directly balance be claimed the title sample numerical value input data processing circuit of sample data to participate in analyzing and processing, sample weighting amount just needn't be the same like this, further reduced instrument because the error that weighing causes.In addition, instrument adopts liquid crystal display the various parameters of analyzing can be shown, and has improved readability.Simultaneously, in order to strengthen the shortcoming a little less than the control circuit single-chip microcomputer antijamming capability, adopted watchdog technique.

Claims

1, tubular type carbon sulphur translocation analyser, it is characterized in that comprising the tubular type combustion furnace, analyze case and control box, the output of tubular type combustion furnace connects analyzes case, analyze case and comprise gas volumetric method carbon determination module and iodimetric titration survey sulphur module, be provided with gas solenoid valve between gas volumetric method carbon determination module and tubular type combustion furnace, iodimetric titration is surveyed the sulphur module and is comprised photoelectric cell and sulphur cup, photoelectric cell is measured solution colour in the sulphur cup, gas volumetric method carbon determination module and iodimetric titration are surveyed the output of sulphur module respectively by sensor input control box, control box comprises the AD sample circuit, control circuit and data processing circuit, the AD sample circuit, control circuit, data processing circuit connects successively, the wherein break-make of gas solenoid valve between control circuit pilot-gas volumetric method carbon determination module and the tubular type combustion furnace, and control sulphur cup is surveyed the addition of sulphur volumetric soiutions.

2, tubular type carbon sulphur translocation analyser according to claim 1 is characterized in that also being provided with electronic balance, and electronic balance connects control box.

3, tubular type carbon sulphur translocation analyser according to claim 1 and 2, the control circuit that it is characterized in that control box is the watchdog microcontroller circuit.

4, tubular type carbon sulphur translocation analyser according to claim 1 and 2 is characterized in that control box also is provided with display circuit and print circuit, and display circuit is connected data processing circuit with print circuit.

5, tubular type carbon sulphur translocation analyser according to claim 3 is characterized in that control box also is provided with display circuit and print circuit, and display circuit is connected data processing circuit with print circuit.