Wear-resistant quick temperature measuring platinum resistance thermometer

Abstract

The invention discloses a wear-resistance quick temperature measuring platinum resistance thermometer, which comprises a wear-resistant protecting tube and a platinum resistance thermometer arranged in the protecting tube, and is characterized in that: in the protecting tube, a quick heat conducting body connected with the platinum resistance thermometer is arranged at the temperature sensing end; the platinum resistance thermometer is tightly matched with the inner wall of the protecting tube; and a heat conducting material is filled in small gaps between the platinum resistance thermometer and the inner wall of the protecting tube. The wear-resistance quick temperature measuring platinum resistance thermometer has the advantages that: by selecting the material of the protecting tube and the platinum resistance thermometer, the wear resistance and corrosion resistance are improved by more than three times compared with those of the conventional wear-resistant protecting tube; and the platinum resistance thermometer is tightly matched with the protecting tube, the heat conducting material is filled in the gaps, and the quick heat conducting body is arranged at the temperature sensing end (heat end) of the protecting tube, so that the heat conductivity is improved by 8 times. The wear-resistance quick temperature measuring platinum resistance thermometer has a compact structure, has the thermal response time of less than 5 seconds, meets the performance requirements for corrosion resistance and wear resistance in the tyre rubber vulcanizing process, improves the effect of quickly and accurately measuring temperature of a temperature sensor, is convenient and practical to use, and has obvious effect.

Description

technical field [0001] The invention belongs to the technical field of platinum thermal resistance temperature measuring elements, and relates to the structural improvement of a wear-resistant rapid temperature measuring platinum thermal resistance, which improves the wear resistance, corrosion resistance and fast thermal response time of the platinum thermal resistance. Background technique [0002] At present, there are two commonly used ways to speed up the thermal response time of the wear-resistant temperature sensor. The first is to use the characteristics of the hot junction of the thermocouple temperature sensing element to speed up the thermal response time of temperature measurement. The second is to increase the wear-resistant temperature The protective tube of the sensor is made into a welded two-section type, that is, one section of the wear-resistant protective tube equipped with the temperature sensing element is welded together with the other ordinary stainles...

AI Technical Summary

Problems solved by technology

However, although the first method has a faster thermal response time, its temperature measurement accuracy, especially in the low temperature section, is much lower than that of the platinum thermal resistance temperature sensing element, so this method is usually not used in the low temperature section

Although the second method enhances the wear resistance of the wear-resistant protection tube of the temperature sensor, it is at the expense of the thermal response time of the temperature sensor. The thermal response time of the temperature sensor is not significantly reduced, and due to the temperature sensor There is no breakthrough change with the wear-resistant protective tube and structure, so the effect is not significant

In tire rubber vulcanization temperature measurement, the existing platinum thermal resistance temperature sensor thermal response time lag, wear resistance and corrosion resistance are not satisfactory, and the service life is short

Images