Urea synthesizer thermocouple temperature measurement device

The utility model provides a urea synthesizer thermocouple temperature measurement device, relating to industrial instruments in chemical fertilizer industry. The device is characterized in that a stainless steel tube which is in sleeve joint at high pressure in a permanent fit way in a central hole of a flange extends into the bottom part of a synthesizer; the bottom part of the stainless steel tube is sealed; three thermocouples are arranged above the flange; the temperature-sensing probes of the three thermocouples are all sleeved in the stainless steel tube; and the three temperature-sensing probes correspond to the top part, the middle part and the bottom part of the interior chamber of the synthesizer respectively. The utility model has the advantages that the urea synthesizer thermocouple temperature measurement device replaces the measurement mode that the middle section opening and the lower section opening of the original synthesizer are respectively provided with a thermocouple, and the stress conc