Application of infrared thermometer in chemical industry;
In the petrochemical industry, the temperature display system is used in the routine preventive maintenance procedures in refineries. These procedures include the monitoring of furnace process and the confirmation of thermocouple indication. In furnace process inspection, infrared display is used to detect the proportion of carbon accumulated in heating surface tubes. This kind of agglomeration, called coking, will lead to a higher ignition rate of the furnace and also increase the temperature of the tube. This high temperature condition will reduce the service life of the pipe. Because this kind of coking will prevent the product from evenly absorbing the heat of the pipe. When using infrared thermometer, we will find that the surface temperature of the pipe in the contact area is often higher than that in other areas.
The operation principle guidance of two-color fixed thermometer can also play a preventive maintenance role:
With the portable heat display system, maintenance personnel can find out the potential or existing problems. For example, the engine coil winding is overheated, the cooling fin on the transformer is plugged, the capacitor contact is poor, and the heat is accumulated in the cylinder head of the compressor. Any problem is accompanied by temperature rise, or the temperature curve is completely different from the surrounding temperature, so it can be located by portable heat display system. In most cases, problems can be found and corrected in time before stopping the process flow.
Comparative analysis of on-line infrared thermometer and handheld thermometer;
On-line infrared thermometer is mostly used for on-line temperature measurement in industrial production site, which measures the temperature of a certain link of the production line in real time and transmits/displays it in the control room, or even directly participates in closed-loop control. Such a thermometer generally requires long-term stability and reliability.
The hand-held infrared thermometer is a kind of portable infrared thermometer, which is small and portable.
The difference between on-line and hand-held infrared thermometers lies in the use environment, and the temperature measurement accuracy is different. Hand-held infrared thermometers can be used in indoor and outdoor working environments because they are easy to carry, and are basically not limited by environmental sites. However, compared with on-line infrared thermometers, their temperature measurement accuracy is slightly worse. The on-line infrared thermometers are larger than hand-held ones, so they are not easy to move and are limited by the use site, but their temperature measurement accuracy is high, and they can also be compared and analyzed online. In industry, the accuracy of on-line thermometer is much higher.
