The difference between high temperature and high pressure thermocouple and armored thermocouple

High temperature and high pressure thermocouples are suitable for temperature measurement and control in high temperature and high pressure places in the production process of petroleum, chemical industry, etc. It is an indispensable temperature device for refineries, high pressure polyethylene, etc.
Material and selection of protective tube
Structural principle of armored thermocouple
It is made of conductor, high insulation magnesium oxide, outer jacket 1Cr18Ni9Ti stainless steel protective tube, and is drawn in one piece many times. The armored thermocouple product mainly consists of junction box, terminal block and armored thermocouple as the basic structure, and is equipped with various installation and fixing devices.
Armored thermocouples are divided into insulated type and shell type.
It has many advantages such as bending, high pressure resistance, fast thermal response time and durability. It is the same as industrial use. As a sensor for measuring temperature, it is usually used with display instruments, recording instruments and electronic regulators. At the same time, it can also be used as a temperature sensing element. It can directly measure the temperature of liquid, steam and its gas medium and solid surface in the range of 0℃~800℃ in various production processes. Compared with, armored thermocouples have the advantages of bendability, high pressure resistance, short thermal response time and durability.
Thermocouple temperature measurement principle
is based on the thermoelectric effect. When two different conductors or semiconductors are connected into a closed loop, when the temperatures at the two junctions are different, a thermoelectric potential will be generated in the loop. This phenomenon is called the thermoelectric effect, also known as the Seebeck effect.
As a temperature measurement sensor, armored thermocouples are usually used in conjunction with temperature transmitters, regulators and display instruments to form a process control system to directly measure or control the temperature of fluids, steam and gas media and solid surfaces in the range of 0-1800℃ in various production processes.
Armored thermocouples have many advantages such as bendability, high pressure resistance, fast thermal response time and durability. Like industrial assembled thermocouples, they are used as temperature measurement sensors and are usually used in conjunction with display instruments, recording instruments and electronic regulators.