The difference between various explosion-proof thermocouples

The difference between various explosion-proof thermocouples:

Explosion-proof thermocouples Industrial explosion-proof thermocouples are a kind of temperature sensor, which is widely used in chemical industry automatic control systems. Through the temperature sensor, the temperature parameters of the controlled object can be converted into electrical signals and transmitted to the display, recording and adjustment instruments to detect, adjust and control the system. In chemical plants, the production site is often accompanied by various flammable and explosive chemical gases and steam. If ordinary thermocouples are used, it is very unsafe and can easily cause environmental gas explosions. Therefore, explosion-proof thermocouples must be used as temperature sensors in these occasions.

Explosion-proof thermocouples are usually used in conjunction with display instruments, recording instruments, electronic computers, etc. Directly measure the liquid, steam and gas medium and solid surface temperature within the range of 0℃ to 1300℃ where explosives such as hydrocarbons exist at the production site.
Features: Various explosion-proof forms, good explosion-proof performance; compression spring type temperature sensing element, good vibration resistance; large measuring range; high mechanical strength, good pressure resistance; working principle explosion-proof thermocouples use the gap explosion-proof principle to design components such as junction boxes with sufficient strength, and all components that will generate sparks, arcs and dangerous temperatures are sealed in the junction box. When an explosion occurs in the box.
Micro-armored thermocouples

Suitable for temperature measurement and control in narrow and curved places. It is the best temperature measurement device in the chemical, chemical fiber, pharmaceutical and other industries.

Main technical parameters Accuracy level: Class I or Class II Nominal diameter: Φ1 Bending radius: R≥5D Nominal pressure: normal pressure Model and specification Model Graduation number Temperature range ℃ Thermal response time Protection tube material

In some special occasions, such as chemical plants, smelters, power plants, cement plants, etc., ordinary thermocouples and thermal resistors are easily damaged. Therefore, wear-resistant thermocouples (resistance) must be used in these occasions. This thermocouple (resistance) is particularly suitable for temperature measurement in fluidized bed, coal mill outlet, primary, secondary air coal and cement industry. Features: Based on the WR and WZ series, the insert part of its protective cover can be made in whole or in part. Wear-resistant, erosion-resistant and corrosion-resistant. Long service life. It can be used for more than 6 months at high temperature.
Multi-point thermocouple
1. Application Applicable to the production site where the temperature gradient is not significant and multiple positions or multiple positions must be measured at the same time. Widely used in large fertilizer synthesis towers, storage tanks and other devices.

2. Main technical parameters Electrical outlet: M27X2, NPT3/4 Thermal response time: ≤8S Couple wire diameter: Φ3&nbs. Armored thermocouple applications are usually used in conjunction with display instruments, recording instruments, electronic computers, etc. Directly measure the temperature of liquid, steam and gas media and solid surfaces in the range of 0℃~1300℃ in various production processes. Features Short thermal response time, reducing dynamic error; can be bent and installed for use; large measuring range; high mechanical strength, good pressure resistance; working principle The electrode of the armored thermocouple is composed of two different conductor materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential will be generated, and the working instrument will display the temperature value corresponding to the thermoelectric potential.

Assembly thermocouple applications are usually used in conjunction with display instruments, recording instruments, electronic computers, etc. Directly measure the temperature of liquids, steam and gas media and solid surfaces within the range of 0℃ to 1300℃ in various production processes. Features: simple assembly and easy replacement; compression spring type temperature sensing element, good vibration resistance; large measuring range; high mechanical strength, good pressure resistance; working principle The electrode of the thermocouple is composed of two different conductor materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential will be generated, and the working instrument will display the temperature value corresponding to the thermoelectric potential. Main technical parameters Product implementation standard IEC584IE...