The installation position of explosion-proof thermistor will affect its measurement standard

When installing explosion-proof thermal resistors, it is important to pay attention to measurement accuracy, maintenance, and safety issues. However, it must not have any impact on the operation of the equipment or normal production and operation. Only after meeting the above requirements can we consider the installation position and insertion depth of the thermal resistor.

1, If an explosion-proof thermistor with a protective sleeve is used, it will cause certain losses to heat transfer and dissipation. In order to better reduce measurement errors, there should be certain requirements for the insertion depth of both the thermistor and thermocouple, which must be clearly marked.

2, If the explosion-proof thermistor is installed at the measurement center of the pipeline based on the temperature of the fluid, under normal circumstances, its insertion depth should be ensured to be at the center of the pipeline, or it can be installed vertically or obliquely, both of which can effectively ensure the normal use of the thermistor.

3, When measuring the temperature of high-temperature and high-pressure fluids, explosion-proof thermal resistors may cause the fluid to break due to resistance in order to reduce the protective sleeve. Shallow insertion can be used to protect the protective sleeve, or thermal resistors with thermal sleeves can be used for insertion.

4, If it is necessary to measure the temperature of the flue gas in the flue, for explosion-proof thermal resistors, although the diameter of the flue gas reaches 4m, the insertion depth of the thermal resistor only needs to be ensured at 1m; When the insertion depth exceeds 1m, it is best to use a vertical installation method or support the protective sleeve.

5, In order to ensure that the explosion-proof thermistor has sufficient heat exchange capability between the measuring end and the measured medium, the location of the measuring point is very important. It is recommended not to choose the position of the valve as this installation method will affect the measurement standard of the thermistor. It is best to install it in the dead corner position of the equipment pipeline.