S - type thermocouple installation of two requirements
The installation of S-type thermocouple should pay attention to the temperature measurement is accurate, safe and reliable and easy maintenance, and does not affect the equipment operation and production operations, then need to meet certain requirements. To this end, the next to introduce the installation of S-type thermocouple two requirements.
1, with protective casing S-type thermocouple with heat and heat loss, in order to reduce the measurement error, S-type thermocouple should have enough depth of insertion.
(1) When measuring the original insertion depth of more than 1m, should be installed as far as possible vertical, or the installation of support and protective sleeve.
(2) If you need to measure the temperature of the flue gas flue, although the flue diameter of 1000mm, S-type thermocouple can be inserted into the depth of 500mm.
(3) For S-type thermocouples that measure the temperature of the center of the pipe, it is generally necessary to insert the measuring end into the center of the pipe (vertical or tilted). If the diameter of the pipe to be measured is 100 mm, the S-type thermoelectric Even insert depth should be selected 50 to 100 mm (should take into account the size of the mounting base or flange).
(4) For high temperature and high pressure and high temperature fluid temperature measurement (such as the main steam temperature), in order to reduce the resistance of the casing to the fluid and prevent the protection of the casing under the action of fluid fracture, Thermo-type S-type thermocouple. The shallow plug type S-type thermocouple protection sleeve, the depth of the main steam pipe inserted should be not less than 75mm; hot sleeve S-type thermocouple standard insertion depth of 100mm.
