How do thermocouples in glass tempering furnaces work?

The thermocouple of the glass tempering furnace is an important temperature sensor, and its application in the tempering furnace has Important significance. Although there are some issues, through reasonable use and maintenance, it is possible to recharge

Utilize its advantages to improve the production efficiency and product quality of the glass tempering furnace.

The glass tempering furnace thermocouple is a sensor used to measure temperature in high-temperature environments. The tempering furnace is

A device used for processing materials such as glass and metal, which typically operates at temperatures above 600 ℃, therefore requires a temperature sensor that can work stably in high temperature environments. Thermocouples are one of the sensors that meet this requirement.

Thermocouple is a sensor based on the thermoelectric effect, which measures temperature by utilizing the temperature dependent characteristics of the thermoelectric potential difference between two different metals. In a tempering furnace, thermocouples are typically composed of two metals (such as platinum rhodium alloy and nickel chromium alloy), with one end exposed to a high-temperature environment and the other end connected to a thermometer or control system.

The advantage of thermocouples of glass tempering furnace is that they can work stably in high-temperature environments and have high accuracy and sensitivity. In addition, thermocouples also have advantages such as fast response speed, simple structure, easy installation and maintenance. Therefore, it is widely used in glass tempering machine furnaces.

However, there are also some issues with the thermocouple of the tempering furnace. Firstly, due to the working principle of thermocouples being based on the thermoelectric effect, their output signals are greatly affected by environmental temperature and require temperature compensation. Secondly, thermocouples have a short service life and require regular replacement.

In addition, thermocouples also have certain errors and require calibration.

Choosing the appropriate thermocouple material is crucial for temperature measurement in glass tempering furnaces. Common thermocouple materials include K-type, S-type, R-type, etc. Each material has its specific working range and applicable scenarios. For example, K-type thermocouples are suitable for lower temperature measurements, while S-type and R-type thermocouples are suitable for temperature measurement in high-temperature environments. According to the tempering furnace's

Technical advantages:

1. they have a wide temperature measurement range and relatively stable performance;

2. High measurement accuracy, thermocouple in direct contact with the measured object, unaffected by intermediate media;

3. Fast thermal response time and flexible response of thermocouples to temperature changes; The measurement range is large, and thermocouples can continuously measure temperature from -40 to+1600 ℃;

4. Thermocouples have reliable performance and good mechanical strength. Long service life and convenient installation. The corresponding thermocouple material can be selected for the working temperature.