WR series wear-resistant thermocouples adopt plasma spray technology, high-chromium cast iron and high-temperature alloy wear-resistant protective tubes made of different materials, specially designed and manufactured for high, medium and low temperature wear-resistant environment measurement occasions, suitable for circulating fluidization Bed, boiling furnace, cement rotary kiln tail gas chamber.

Wear-resistant thermocouple

It is composed of wear-resistant head, connecting rod, thread or flange for installation and fixing, junction box, thermocouple core or thermocouple wire.

Because different high-strength wear-resistant protective pipes and surface modification measures are adopted for different temperature ranges and measured media, forming a composite pipe-type physical structure. This series of products are suitable for petrochemical and coal conveying systems where the protective pipe is seriously worn. Temperature measurement of flowing powders and materials such as fluidized bed boilers, cement clinker and refractory materials. Further improve the service life of thermocouples. Its performance is better than the current wear-resistant thermocouple, which has won praise from users. With a number of high-tech products in the international leading level, its special process wear-resistant materials completely solve the service life of the circulating fluidized bed boiler temperature measurement thermocouple without affecting the temperature lag, and the protective sleeve is resistant Many technologies such as grinding, high temperature oxidation resistance, sulfur resistance, liquid iron powder, limestone and other cement materials corrosion resistance, erosion resistance and vibration resistance, make the temperature measuring thermocouple have a service life of one to two years.

Pulverized coal furnaces, ball mills, cement plants and other industrial sites, using armored or high-temperature armored cores, equipped with wear-resistant casings of different materials and specifications, have good wear resistance, vibration resistance, and thermal shock resistance. The service life of the product in the harsh environment with extremely high degree of wear can be several times as high as that of the ordinary product, which greatly improves the production efficiency and reduces the cost. Special heat-resistant and wear-resistant alloy materials are used as the measuring outer protection tube and wear-resistant head, and the inner armored core body can not only have high corrosion resistance to fly ash particles, and can be kept at 0~1400℃ for a long time. It is an ideal temperature sensor used in high temperature and wear-resistant environment in metallurgical industry.

The heat-resistant material and wear-resistant alloy material of special materials are used as the temperature measuring outer tube and the wear-resistant head. According to the different temperature to be measured, the selected wear-resistant protective tube material is also different. Flange connection or threaded connection is adopted, which can be Long-term use for temperature measurement in the range of 0-1400 degrees, it is the most ideal temperature sensor used in high temperature and wear-resistant environments in metallurgy, chemical industry, cement plants, power plants, and fluidized bed boiler industries. The service life can be as long as Two years. The components are wear-resistant heads, connecting rods, threaded connections or flanges, junction boxes, and armored inner cores. The wear-resistant heads should be made according to the actual temperature of the production site. The connecting rods, threaded connections or flanges should be There is no corrosive medium to choose material.

According to the material of wear-resistant casing, it can be divided into the following three categories, and each category has its own unique characteristics:

1. Wear-resistant high-temperature alloy: According to the characteristics of high-temperature wear environment, the pure alloying of the explosion-proof thermocouple is specially designed by vacuum smelting, and has high temperature oxidation

And a special wear-resistant superalloy with extremely high high temperature strength, which is made by forging and drilling as a whole. Few processing defects, high reliability, good high temperature strength and comprehensive wear resistance, high price, operating temperature 800~1200℃.

2. Composite casting wear-resistant alloy: The composite armoring technology is used to add wear-resistant particles to the high-temperature alloy matrix, and precision fusion-casting is used. No turning plus

The casing has high hardness and high temperature oxidation resistance. The magnetic flap level gauge has a few casting defects but does not affect the high temperature wear resistance and sealing performance. It is the most common high temperature wear resistant casing, the price is moderate, and the use temperature is 800~1200 ℃.

3. Ion implantation of tungsten carbide: Using stainless steel as the matrix, ion implantation technology is used to inject tungsten carbide particles on the surface of the casing. It has high hardness, high strength, high toughness, particularly wear-resistant, the thickness of the wear-resistant layer is 0.5 ~ 1.5mm, the outer is hard and the inner is tough, the smallest diameter can reach φ8, the surface quality is good, the use temperature is 0 ~ 800 ℃, in the power plant The service life is more than 2 years.

technical parameter

Electrical outlet: M20×1.5, NPT1/2

Wear-resistant head hardness: HRC60-65

Protection level: IP65

Insulation resistance>100MΩ (under normal temperature)

Test voltage: 500VDC

Connection size: M27×2 NPT3/4

Accuracy grade: Class I

Compare

1. Cermet wear resistance: Recrystallized silicon carbide cermet protection tube is used, and the high temperature can reach 1300℃. It is equipped with K index or S index armor core, which is specially suitable for high temperature resistance such as cement kiln tail and circulating fluidized bed. Temperature measurement in grinding conditions.

Material composition: SiC

Operating temperature: 0~1600℃
Wear-resistant thermocouple
Wear-resistant thermocouple
2. Special wear-resistance for hot blast stove: new silicon carbide cermet protection tube is used, the high temperature can reach 1300℃, the inner core is S or B index high temperature armored core, which is specially suitable for temperature measurement in hot blast stove.

Material composition: SiC

Operating temperature: 0~1600℃

3. The high-temperature alloy wear-resistant head, inner armored core, can not only have high corrosion resistance to fly ash particles, it is an ideal temperature sensor used in high temperature and wear-resistant environments in the metallurgical industry.

Material: K1320 heat-resistant and wear-resistant alloy

Temperature: 0~1200℃

4. High-temperature alloy wear resistance 2: Special heat-resistant and wear-resistant alloy materials are used as the temperature measurement outer protection tube, and the inner armored core has high corrosion resistance to particle erosion. It is used in the metallurgical industry for high temperature, Ideal temperature sensor in wear-resistant environments.

Material: 3YC52 or GH3030 heat-resistant and wear-resistant alloy

Temperature: 0~1200℃

5. Iron-aluminum porcelain protection tube

The iron base contains aluminum and the A12O3 powder is cleverly added to produce iron-aluminum porcelain (TLC) with special gold content. The iron-aluminum porcelain alloy is made into a thermocouple (resistance) protection tube, which becomes the iron-aluminum porcelain thermocouple (resistance). The key part-iron aluminum porcelain protective tube. According to the working temperature, wear condition, medium type, pressure, etc., different series of iron-aluminum ceramic protection tubes are made. The existing series: TLC, TLC1, TLC2, TLC3, TLC4 and TLC5 six series.

TLC type: resistance to hydrochloric acid, nitric acid, sulfuric acid, sodium hydroxide, potassium hydroxide solution. The working temperature is divided into two types: 350°C and 750°C.

TLC1 type: oxidation resistance, sulfide resistance, zinc vapor corrosion resistance, high wear resistance, good thermal shock resistance, working temperature 1100°C. After actual use, the service life of the zinc concentrate boiling furnace is 4 months, the service life of the pyrite boiling furnace is 12 months, the service life of the boiling furnace and circulating fluidized bed boiler furnace is 6 months, and the service life of the ball mill and fan mill is 6 months. -8 months.

TLC2 type: working temperature 1250°C, wear resistance is lower than TLC1 type, compared with ceramic tube thermal shock resistance, high temperature thermal strength, working pressure (16MPa and other technical indicators are far ahead, especially suitable for 1250°C Thermocouple protection tube of degree S.

TLC3 type: It is improved from TLC2 type. In addition to the characteristics of TLC2 type, it has a special improvement in wear resistance. Under the same working conditions, it can double the life. Working temperature is 1300°C.

TLC4 type: It must be made from TLC1 type. In addition to the characteristics of TLC1 type, it has a special improvement in wear resistance, which is much higher than TLC1 type. Under the same working conditions, it can increase the life by three times, and the working temperature 1100°C. After actual use, the life of the protective tube for temperature measurement at the inlet and outlet of the ball mill can reach 36 months.

Application field
Wear-resistant thermocouple is the most ideal temperature sensor used in high temperature and wear-resistant environment in metallurgy, chemical industry, cement plant, power plant, fluidized bed boiler industry.
Digital display temperature sensor
Digital display temperature sensor

Various material characteristics of wear-resistant thermocouple

1. Wear-resistant thermocouple high temperature alloy wear-resistant

Special heat-resistant and wear-resistant alloy materials are used as the temperature measurement outer protection tube and wear-resistant head, and the inner armored core body can not only have high corrosion resistance to fly ash particles, and can be kept at 0~1200℃ for a long time. It is an ideal temperature sensor used in high temperature and wear-resistant environment in metallurgical industry.

Material: K1320 heat-resistant and wear-resistant alloy Temperature: 0~1200℃

2. High temperature alloy wear resistance

It can measure temperature between 0~1200℃ for a long time. It is an ideal temperature sensor used in high temperature and wear-resistant environment in metallurgical industry.

Material: 3YC52 or GH3030 heat-resistant and wear-resistant alloy Temperature: 0~1200℃

3. Metal ceramic wear-resistant:

Material composition: SiC Working temperature: 0~1600℃

4. Special wear-resistant for hot blast stove:

Specially suitable for temperature measurement in hot blast stove

Material composition: SiC Working temperature: 0~1600℃

5. Wear-resistant thermocouple iron-aluminum porcelain protective tube

The iron base contains aluminum and the A12O3 powder is cleverly added to produce iron-aluminum porcelain (TLC) with special gold content. The iron-aluminum porcelain alloy is made into a thermocouple (resistance) protection tube, which becomes the iron-aluminum porcelain thermocouple (resistance). The key part-iron aluminum porcelain protective tube.


Wear-resistant thermocouple wear-resistant head

Wear-resistant head is an indispensable main material for wear-resistant thermocouple (resistance). The wear-resistant head can have good wear resistance under hot conditions. At the same time, it contains high C, Cr, Ni and other elements, which makes it It has good impact toughness, good thermal fatigue, thermal strength and oxidation growth resistance, especially in wear-resistant industrial mines with a working temperature of 1300 or less. The hardness of the wear-resistant head reaches HRC60-65.

The life of the wear-resistant thermocouple wear-resistant 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 the power plant circulating fluidized boilers, boiling boilers, coal pulverizer gas generators and cement plant series kiln heads, kiln tails, and furnace heads The high-tech special product series that are ideal for high-temperature and wear-resistant environments such as hoods, chemicals, smelting, etc. draw on the best of others, and use unique process formulas to produce wear-resistant alloys in the out-of-balance. Compared with the similar wear-resistant alloy protection tube, its service life is increased by 1-5 times. Due to the environmental temperature difference, 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 It is very short-lived. The general wear-resistant alloy only wears through and damages, burns, breaks, and causes thermocouple damage, which brings great losses and unnecessary trouble to users. The company's production makes up for this shortcoming . Anti-scouring and wear-resistant thermocouples have been used by hundreds of manufacturers and used nearly 10,000 times a year. The response is very good. It has the strength of leading peers on many occasions and is completely comparable to imported products. This product is vibration-resistant, wear-resistant, Corrosion resistance, high sensitivity, good stability, high accuracy, long service life and other advantages, it is currently the preferred temperature measurement protection tube in high temperature and wear resistance fields such as power plants, cement plants, chemical smelters, etc.

The wear-resistant thermocouple adopts a special hard, high-temperature, wear-resistant alloy material protection tube, and is 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. It improves production efficiency and reduces production costs for enterprises. It is a high-tech product of choice in high-temperature wear-resistant fields such as circulating fluidized bed boilers, fluidized bed furnaces, coal mills, gas generators, cement rotary kilns and metallurgy.

Comparison of various materials:
Folding cermet wear-resistant
It adopts recrystallized silicon carbide cermet protection tube, the high temperature can reach 1300℃, and it is equipped with K index or S index armored core, which is specially suitable for temperature measurement in high temperature and strong wear conditions such as cement kiln tail and circulating fluidized bed.

Material composition: SiC

Operating temperature: 0~1300℃

Folding hot blast stove is wear-resistant
It adopts a new type of silicon carbide cermet protection tube, the high temperature can reach 1300℃, and the inner core is a high temperature armored core with S index or B index, which is specially suitable for temperature measurement in hot blast stove.

Material composition: SiC

Operating temperature: 0~1300℃

Folding high temperature alloy wear-resistant
Special heat-resistant and wear-resistant alloy materials are used as the temperature measurement outer protection tube and wear-resistant head, and the inner armored core body can not only have high corrosion resistance to fly ash particles, but also can be used under high temperature conditions. The inner core plays a good protective role. It adopts flange or thread connection form, and can measure the temperature between 0∽1200℃ for a long time. It is an ideal temperature sensor used in high temperature and wear-resistant environment in metallurgical industry.

Material: K1320 heat-resistant and wear-resistant alloy, temperature: 0~1200℃

Folding high temperature alloy wear-resistant
Special heat-resistant and wear-resistant alloy materials are used as the outer protective tube for temperature measurement, and the inner armored core has high corrosion resistance to particle erosion and can protect the inner core under high temperature conditions. effect. It adopts flange or thread connection form, and can measure the temperature between 0∽1200℃ for a long time. It is an ideal temperature sensor used in high temperature and wear-resistant environment in metallurgical industry.

Material: 3YC52 or GH3030 heat-resistant and wear-resistant alloy, temperature: 0~1200℃

Folding iron aluminum porcelain protective tube
The iron base contains aluminum and the A12O3 powder is cleverly added to produce iron-aluminum porcelain (TLC) with special gold content. The iron-aluminum porcelain alloy is made into a thermocouple (resistance) protection tube, which becomes the iron-aluminum porcelain thermocouple (resistance). The key part-iron aluminum porcelain protective tube. According to the working temperature, wear condition, medium type, pressure, etc., different series of iron-aluminum ceramic protection tubes are made. The existing series: TLC, TLC1, TLC2, TLC3, TLC4 and TLC5 six series.

TLC type: resistance to hydrochloric acid, nitric acid, sulfuric acid, sodium hydroxide, potassium hydroxide solution. The working temperature is divided into two types: 350°C and 750°C.

TLC1 type: oxidation resistance, sulfide resistance, zinc vapor corrosion resistance, high wear resistance, good thermal shock resistance, working temperature 1100°C. After actual use, the service life of the zinc concentrate boiling furnace is 4 months, the service life of the pyrite boiling furnace is 12 months, the service life of the boiling furnace and circulating fluidized bed boiler furnace is 6 months, and the service life of the ball mill and fan mill is 6 months. -8 months.

TLC2 type: working temperature 1250°C, wear resistance is lower than TLC1 type, compared with ceramic tube thermal shock resistance, high temperature thermal strength, working pressure (16MPa and other technical indicators are far ahead, especially suitable for 1250°C Thermocouple protection tube of degree S.

TLC3 type: It is improved from TLC2 type. In addition to the characteristics of TLC2 type, it has a special improvement in wear resistance, which is much higher than TLC1 type. Under the same working conditions, it can increase the life by two times. Working temperature is 1300°C.

TLC4 type: It must be made from TLC1 type. In addition to the characteristics of TLC1 type, it has a special improvement in wear resistance, which is much higher than TLC1 type. Under the same working conditions, it can increase the life by three times, and the working temperature 1100°C. After actual use, the life of the protective tube for temperature measurement at the inlet and outlet of the ball mill can reach 36 months.