Thermocouples have always played a key role as a common and important temperature measurement instrument in the vast field of industrial production and scientific research. Whether it's the red-hot steel tumbling in a metallurgical furnace or a precision high-temperature experiment in a scientific research laboratory, thermocouples convert temperature signals into measurable electrical signals, providing critical data to support production and research. However, thermocouples face many challenges under extreme environmental conditions such as high temperature, high pressure and strong corrosion, and their measurement accuracy and service life are seriously affected. In order to effectively deal with these challenges, thermocouple protection tube came into being, become the guardian of thermocouple stable operation, to ensure accurate and reliable temperature measurement of the solid barrier.
Thermocouple Protection Tubes: Basic Principles and Benefits
Thermocouple protection tubes are devices designed to protect thermocouples based on a clever use of the properties of metal materials. Through the thermocouple safely into the special metal tube, the use of metal tubes excellent high temperature resistance, corrosion resistance, impact resistance and other properties, in the thermocouple and the harsh environment between the outside world to build a solid isolation line of defense. This design makes the thermocouple can be free from high temperature, corrosive media erosion and mechanical impact, so as to ensure its stable operation, greatly enhancing the reliability and stability of the measurement. Compared with the traditional way of protection, thermocouple protection tube with its professional structural design and high-performance material selection, can provide more durable and reliable protection in complex and changing conditions, become the first choice of protection program in the field of modern industrial temperature measurement.
Scientific selection of thermocouple protection tube key points
In practice, the selection of suitable thermocouple protection tube is to ensure the accuracy of temperature measurement and long-term stable operation of the equipment is a key link. Selection process, the need for comprehensive consideration of a number of important factors. First of all, high temperature performance is the first factor to consider, different industrial scenarios on the temperature requirements vary greatly, from a few hundred degrees Celsius to thousands of degrees Celsius, so you must choose to be able to withstand the corresponding temperature range of the protective tube material. Secondly, high-pressure resistance should not be ignored, in some high-pressure environments, the protection tube needs to have enough strength and sealing, in order to prevent external pressure on the thermocouple damage. In addition, corrosion resistance is also one of the key factors, in the face of a variety of corrosive gases, liquids and solid media, the protection of the tube material must have good corrosion resistance to ensure that in the harsh chemical environment is still able to work properly. Finally, the measurement accuracy is also the choice of protection tube need to focus on the aspects of the protection tube materials and structural design should minimize the interference with the thermocouple measurement signal, to ensure the accuracy of the measurement results. In addition to these performance indicators, but also need to be based on the actual working conditions, such as the specific temperature range, pressure range, corrosive environment characteristics, etc., the comprehensive selection of suitable protection tube materials and structural forms, in order to achieve the best protection effect.
Common Types of High Temperature Alloy Protection Tubes
Stellite Alloy Protection Tubes: Tough Guardians of Complex Industrial Environments
Stellite Alloy Protection Tubes have become the ideal choice for coping with complex industrial environments due to their excellent overall performance. The alloy material has excellent resistance to abrasion, scouring, corrosion and high temperatures, and is able to work stably in the temperature range of 800 - 1200. In the high-temperature kiln of a cement plant, it can resist the continuous scouring of high-temperature dust and gravel; in the sulfide bed of a power plant and in a waste incinerator, it can maintain good performance and effectively extend its service life in the face of corrosive media such as high-temperature water vapor and HS gas erosion. Although its price is relatively high, but its excellent performance and long service life, can bring significant economic benefits for customers and stable production security, is the reliability and durability requirements of the industrial scene of the choice.
Metal-ceramic thermocouple protection tube: extreme high-temperature environment of accurate measurement guarantee
Metal-ceramic thermocouple protection tube is in the extreme high-temperature environment to show the unparalleled advantages. The protection of the tube collection of high temperature, corrosion resistance, impact resistance and excellent thermal shock performance in one, can be in the extreme conditions of continuous and stable temperature measurement work. The company's metal-ceramic protection tubes are divided into two series: one is suitable for working environments below 1200, especially suitable for temperature measurement in salt bath furnaces and other special equipment; the other can withstand extreme high temperatures up to 1700, which is widely used in high-temperature steel smelting, high-temperature cobalt and nickel-based solution vacuum furnaces, and other special application working conditions. Compared with other similar products on the market, metal ceramic thermocouple protection tube has the outstanding feature of little impurity shedding, in the process of temperature measurement will not cause any contamination of the steel liquid, thus ensuring the high accuracy and reliability of the temperature measurement results for the precise control of high-temperature industrial production provides a solid guarantee.
