OneHigh frequency infrared carbon sulfur spectrometerInstrument Overview:

High frequency infrared carbon sulfur analyzerIt can quickly and accurately determine the mass fractions of carbon and sulfur elements in steel, iron, alloys, casting core sand, non-ferrous metals, cement, ore, coke, catalysts, and other materials. This equipment has introduced foreign technology and is a product that integrates optical, mechanical, electrical, computer, and analytical technologies. It has the characteristics of wide measurement range, strong anti-interference ability, complete functions, easy operation, and accurate and reliable analysis results.

IIHigh frequency infrared carbon sulfur spectrometerInfrared detection principle:

CO₂、SO₂Equipolar molecules have an electric dipole moment, thus possessing structures such as vibration and rotation. Divided into split energy levels according to quantum mechanics, gas molecules can couple with incident characteristic wavelength infrared light to produce absorption. In the infrared light band, gas molecules have selective absorption spectra. When specific wavelengths of infrared light pass throughCO₂orSO₂After gas, it can produce strong light absorption.

Since the detector converts optical signals into electrical signals, when the detector operates in a linear region, selects a specific wavelength and determines the length of the analysis cell (absorption cell), the concentration of the measured gas in the mixed gas can be calculated by measuring the light intensity. This is the basic principle of infrared absorption method for quantitatively measuring gas concentration. The selected measurement wavelength for this instrument is:CO₂by4.26um，SO₂by7.4um.

The analysis room includes miniature infrared light sources, mirrors, modulation motors, absorption cells, filters, and detectors. Miniature infrared light source heated by electricity800℃Generate infrared light, which is absorbed by an absorption cellCO₂、SO₂After absorption, it passes through a narrowband filter to remove the energy of other light radiation outside the above-mentioned wavelength. When it is incident on the detector, what is detected on the detector isCO₂、SO₂The light intensity corresponding to the concentration is converted into an electrical signal by a detector, and then normalized and calibrated by a microcomputer. The integrated inversion is used to obtain the percentage content of carbon and sulfur elements. A modulation motor is placed between the light source and the absorption cell to modulate the light signal into64HzThe alternating radiation signal. The center frequency of the detector output is64Hz.

The thermoelectric device is converted into an electrical signal, which is then passed through a preamplifier and a preamplifier before entering the microcomputer through digital to analog conversion. In the microcomputer, it undergoes linearization operation to convert it into a signal that isCO₂、SO₂A numerical value proportional to the content.

IIITechnical specifications and indicators:

1.Basic parameters: Instrument performance and accessories

2.Analysis software

Part Two Supply List

1、 One infrared carbon sulfur analyzer

two.Spare parts list:

Part Three Acceptance terms

1、 Preparation work for acceptance

After the instrument arrives at the site, the user needs to prepare the installation site according to the "User Site Installation Preparation Requirements" provided by the manufacturer, and prepare the power supply (grounding wire), oxygen, power gas, and indoor environment.

After the above conditions are met, notify Party B in writing to arrange for installation engineers to come to the site for installation and debugging.

2、 Instrument unboxing inspection

1.The instrument must be accompanied by a packing list, and the personnel of Party B shall conduct a visual inspection after opening the box to ensure that it is brand new and undamaged.

2.The spare parts and accessories shall be gradually confirmed according to the technical requirements of the supplied goods, and all equipment and materials shall be checked for correctness.

3.The unpacking of instruments and equipment must be accompanied by the engineer of Party A. If any shortage is found, the engineer of Party A shall confirm and be responsible for completing the missing parts within thirty days.

IIIHigh frequency infrared carbon sulfur analyzerAcceptance and assessment methods

1.Repeatability:

Select * Steel Standard Material(The carbon mass fraction is0.400%－1%Within the range, the sulfur mass fraction is0.020%－0.080%Within the scope)One method is to operate according to the operating instructions specified in the instrument manual and conduct continuous testing with a high-frequency furnace7The difference between the maximum and minimum values of the test results should be equal to or greater than1.5r.rCalculate using the following formula:

Carbon:lgr = 0.52121lgω-1.9617

Sulfur:lgr = 0.62212lgω-1.9965

In the formularIndicating repeatability,ωIndicate the calibration value of the substance being tested.

2.Accuracy

Select * (steel or iron) standard substance（ The carbon mass fraction is0.003%－4.500%The sulfur mass fraction is0.002%－0.100%Within the range, take three types of samples: high, medium, and low. Operate and calibrate according to the operating method specified in the instrument manual for the high-frequency furnace. After calibration, test each standard substance three times and take the average of the three times. The carbon and sulfur should be equal to or greater thanThe calculated value is shown in the following formula:

In the formula:XRepresenting the average value;

　　　XoIndicate the calibration value of the tested substance;

　　　nIndicate the number of tests conducted;

　　　rExpressing repeatability;

　　　RIndicating reproducibility.

Reproducibility is calculated using the following formula:

Carbon:lgR = 0.58221lgω-1.4558

Sulfur:lgR = 0.68878lgω-1.3693

In the formulaωIndicate the calibration value of the substance being tested.

ISOStandard Error Comparison Table

Part Four train

1、 On site technical training

The first party is responsible for providing training to the personnel of the second party on operation, maintenance, daily malfunctions, etc., to ensure that the personnel of the second party can use the instruments immediately and quickly put them into production use.

2、 System training

The second party may also send personnel to the first party for system training. Training personnel2People, for a period of time5The specific training time will be determined through negotiation between both parties, and transportation, accommodation, and meals will be provided by oneself. The training content includes:

1. Analysis principle and method of carbon sulfur analyzer;
2. The structure and characteristics of the Jiebo series carbon and sulfur instruments;
3. Quantitative analysis of carbon and sulfur analyzer (with a focus on steel materials);
4. Setting analysis conditions, working curves, calibration, etc;
5. Troubleshooting of daily malfunctions;
6. Maintenance and upkeep of instruments.

Part Five Technology and after-sales service

1. After sales service is provided byBeijing Zhongye Yiyuan Technology Co., LtdDirectly responsible.

2. From the date of shipment of the instrument,Free one-year warranty for the entire machineLifetime service and long-term provision of various spare parts.

3. When users encounter problems, after-sales service personnel will24Provide guidance and resolution through fax within the time frame.
4. When it is confirmed that the instrument has malfunctioned and requires on-site maintenance,1000Within kilometers, the area should not exceed2Arrived within one working day,1000Areas beyond kilometers shall not exceed3Arrive within one working day; In case of special circumstances, it is necessary to arrive within the agreed time with the customer.
5. The content of on-site maintenance services: repairing instrument malfunctions; Testing instrument indicators; Training function operation; Introduce usage experience and troubleshooting.

6. Regularly providing service communication to users: introducing development trends and new technological features of instruments; Introduce testing reports and user experience from various industries.