保护管材料的选用采用氮化硅结合碳化硅工艺，具有良好的导热性、抗热振性和耐磨性，抗冲刷，无污染，最高使用高温达1450℃，广泛用于铝液、铜液、锌液等有色金属液体的测温和加热保护。 The selection of wear-resistant thermocouple protection tube material adopts silicon nitride and silicon carbide process, which has good thermal conductivity, thermal shock resistance and wear resistance, erosion resistance, no pollution, the highest use temperature is up to 1450 ℃, widely used in aluminum Temperature, heating and protection of non-ferrous metal liquids such as liquid, copper and zinc. Such as chemical plants, smelting plants, power plants, cement plants, etc., ordinary thermocouples, thermal resistance can easily damage. Therefore, a wear-resistant thermocouple (resistance) must be used in these cases. The thermocouple (resistance) is especially suitable for the temperature measurement of sulfurized bed, coal mill export, primary and secondary coal and cement industries.
Instructions for use
主要由接线盒、接线管、专用保护管、绝缘套管、接线端子、专用内衬套管、热电极组成基本结构，并配有各种安装组件，在选配件中同时可选一体化温度变送器。 AOTS series metal silicon carbide (recrystallized) wear-resistant thermocouples are mainly composed of junction boxes, junction tubes, special protection tubes, insulation sleeves, terminal blocks, special lined sleeves and thermal electrodes, and are equipped with various installations. Component, and optional integrated temperature transmitter in optional accessories.
AOTS series metal silicon carbide (recrystallized) thermocouple protection tube generally has a wall thickness of 4-8 mm (determined according to the temperature measurement location). This protection tube is specially designed for cement plants, and its role is to extend the service life of thermocouples at the temperature measurement points of C3, C4, C5, decomposition furnace, tertiary air duct, kiln tail smoke, and kiln head cover. When installing this product, you can leave empty or protective tubes on the kiln in advance according to the different industrial measurement and control points, and select the dedicated thermocouple of the corresponding specification. In the design of this product, we have fully considered the specifications and models installed in the running 1000-10000T / D cement production line for use at various measurement and control points on your production line. Selection of protective tube length: depth of furnace insertion + wall thickness + exposed part of the furnace = total length
During the production operation, when installing or replacing the thermocouple, slowly insert the thermocouple into the furnace and fix the connection device.
When the long-term temperature measurement at the process measurement and control point is at 1100 ° C, the K-type thermocouple works normally for about 60 working days. Due to the long-term high temperature of the wire, its accuracy will change slightly. The thermocouple can be replaced according to the requirements of the process Temperature measuring element. In the place where the blanking or scouring is involved, after the thermocouple is used for 60 working days, the thermocouple is turned over and reinstalled at 90 ° C, so that the life of the special wear-resistant thermocouple is doubled. The life of the wear-resistant thermocouple wear head is related to the material of the thermocouple protection tube. Solution: Choose a good thermocouple manufacturer, choose a good protection tube, and wear-resistant thermocouples are circulating fluidized boilers, boiling boilers, coal mills, gasifiers, and cement plant kiln heads, kiln tails, and furnace heads. The high-tech special product series that is ideal for high-temperature wear-resistant environments such as hoods, chemicals, smelting, etc., draws on its strengths and adopts unique process formulas to produce wear-resistant alloys in a state of out-of-balance. Compared with similar wear-resistant alloy protection pipes, its service life is increased by 1-5 times. Due to the difference in ambient temperature, the temperature control point is too high, the vibration is large, the blower wind speed is too high, and the wear is serious, which makes temperature measurement very difficult and the service life For a short time, the general wear-resistant alloy is worn through in only 10-90 days, and it will be damaged by burning, bending, and breaking, which will cause damage to the thermocouple, which will bring great loss and unnecessary trouble to the user. The company's production makes up for this shortcoming. . Anti-scouring, wear-resistant thermocouples have been used by hundreds of manufacturers and used nearly 10,000 times a year. The response is very good. In many occasions, they have the strength of leading peers and can be comparable to imported products. This product has anti-vibration and wear resistance. Resistant , High sensitivity, good stability, high accuracy, long life and other advantages, is the field of high temperature resistant plants, cement, chemicals, etc. The preferred temperature measuring smelter protective tube.
采用特种硬质、高温、耐磨合金材料保护管，研制成了高温耐磨热电偶。 The wear-resistant thermocouple adopts special hard, high-temperature, wear-resistant alloy material protection tube, and developed into a high-temperature wear-resistant thermocouple. Its characteristics: high temperature resistance, vibration resistance, wear resistance, corrosion resistance, no creep and bending, stable temperature measurement, fast thermal response, long service life, etc. Improved production efficiency and reduced production costs for enterprises. It is a high-tech product selected for high-temperature wear-resistant fields such as circulating sulphurized bed boilers, boiling furnaces, coal mills, gas furnaces, cement rotary kiln and metallurgy. Comparison of wear-resistant thermocouple materials: 1. Wear resistance of cermets: recrystallization Silicon carbide cermet protection tube, high temperature up to 1300 ℃, built-in K-index or S-index armored core, specially suitable for temperature measurement in high temperature and abrasion-resistant working conditions such as cement kiln tail and circulating vulcanized bed. Material composition: SiC Operating temperature: 0 ～ 1300 ℃ 2. Wear-resistant for hot air furnace: Adopt new type silicon carbide metal ceramic protection tube, high temperature can reach 1300 ℃, inner core is S or B index high temperature armored core, Especially suitable for temperature measurement in hot blast stove occasions. Material composition: SiC Operating temperature: 0 ～ 1300 ℃ 3. High-temperature alloy wear-resistant 1: Special heat-resistant and wear-resistant alloy material is used as the temperature measuring outer protection tube and wear-resistant head, and the armored core is built in, which can have high Its corrosion resistance to scouring of fly ash particles can also protect the inner core body under high temperature conditions. Adopting flange or screw connection, it can measure temperature between 0∽1200 ℃ for a long time. It is a very ideal temperature sensor for metallurgy industry in high temperature and wear-resistant environment. Material: K1320 heat-resistant and wear-resistant alloy Temperature: 0 ～ 1200 ° C. 4. High-temperature alloy wear-resistant 2: Special heat-resistant and wear-resistant alloy material is used as the temperature measuring outer protection tube, and the armored core is built in, which has a high Corrosion resistance to particle scouring and good protection of the inner core under high temperature conditions. It adopts flange or screw connection, which can measure temperature between 0∽1200 ℃ for a long time. It is a very ideal temperature sensor material used in metallurgy industry in high temperature and wear-resistant environment: 3YC52 or GH3030 heat-resistant and wear-resistant alloy. 0 ～ 1200 ℃ 5. Iron-aluminum-porcelain protection tube. Iron base contains aluminum and skillfully add A12O3 powder. That is to make iron-aluminum-ceramic (TLC) with special gold. Iron-aluminum-porcelain alloy is made into thermocouple (resistance) protection tube. It has become the most important part of the iron-aluminum porcelain thermocouple (resistance)-iron-aluminum porcelain protection tube. According to the working temperature, wear conditions, media types, pressure and other conditions, different series of iron-aluminum-ceramic protection tubes are made.