The selection of industrial thermocouple parameters means that the thermocouple can be used in practical situations. Do not make the thermocouple unable to use or shorten the service life due to improper selection. Inductive thinking on functions, response time and economic benefits. Types of thermocouples Commonly used thermocouples can be divided into three categories: tungsten-rhenium thermocouples, armored thermocouples and platinum-rhodium thermocouples. Of course, the prices of these three types of thermocouples are relatively high, mainly due to their special structures. : 1. In order to ensure the reliable and stable operation of the thermocouple, the structural requirements for the thermocouple are as follows: ① The welding of the two hot electrodes constituting the thermocouple must be strong; ② The two hot electrodes should be connected to each other. Excellent insulation to prevent short circuit; ③ The connection between the compensation wire and the free end of the thermocouple should be convenient and reliable; ④ The protective sleeve should be able to ensure that the hot electrode and the harmful medium are fully isolated. 2. Selection of detection accuracy and temperature detection range The operating temperature is between 1300 and 1800 °C. When the required accuracy is relatively high, type B thermocouples are usually used; Tungsten-rhenium thermocouple is selected; the application temperature is 1000~1300℃, the accuracy is required, and the high-availability S-type thermocouple and N-type thermocouple are compared; K-type thermocouple and N-type thermocouple are usually used below 1000℃, and usually below 400℃ E-type thermocouples are used; T-type thermocouples are usually used for measurement at 250°C and negative temperature. T-type thermocouples are stable and have high accuracy at low temperatures. 3. The nature and condition of the detection target For the selection of thermocouples, the temperature measurement of moving objects, oscillating objects, and high-pressure containers requires high mechanical strength, chemically polluted atmospheres require maintenance pipes, and electrical disturbances require high insulation contrast. Selection process: type - graduation number - explosion-proof grade - accuracy grade - device fixing method - maintenance pipe material - length or penetration depth. 4. Selection of operating environment S-type, B-type and K-type thermocouples are suitable for use in strong oxidizing and weak recovery atmospheres. J-type and T-type thermocouples are suitable for weak oxidizing and recovery atmospheres. If they are used with good air tightness The maintenance pipe has no major impact on the surrounding environment. The above is the description of the structure information of the thermocouple, and the suitable thermocouple products can be selected for testing and use according to different conditions. With the innovation of technology, the use of thermocouples has become more and more common. In the next few years, We can also see more areas where thermocouples will be used here.
Shanghai Jiutian Automation Equipment Co., Ltd continued to crave a more intense, personalized workout experience.
Shanghai Jiutian Automation Equipment Co., Ltd provides various models for the RTD supplier, as this being the most beneficiary equipment in temperature sensor manufacturers. Extra features of RTD supplier resistance temperature detector make it an perfect tool in the temperature sensor manufacturers aspect. Visit Jiutian Temperature Products for the professional assistance by the experts.
In conjunction with retraining and upskilling efforts, Shanghai Jiutian Automation Equipment Co., Ltd ’s workers should focus on growing unique human skills that high-tech machines are unable to replicate, such as strategic and abstract thinking, complex communications, creativity and leadership competencies.