Improved structure of lower temperature measuring opening of polymerization kettle and polymerization kettle adopting same

Abstract

The invention discloses an improved structure of a lower temperature measuring port of a polymerization kettle and a polymerization kettle adopting the structure, including a kettle body of a polymerization kettle, a jacket plate of a kettle body, and an outer wall of one end of a thermal resistance outer protection pipe body is fixed on the jacket of the kettle body. The other end is closed and leads to the lead-out section of the tail section of the thermal resistance. The inner end of the thermal resistance outer protection tube is separated from the outer wall of the polymerization kettle; It is inside the outer protection tube of the thermal resistance and separated from the outer protection tube of the thermal resistance; the front part of the thermal resistance passes through the sealing end cap of the lower temperature measuring port enclosure and extends into the body of the polymerization kettle, and the tail part of the thermal resistance extends Pass out to the sealing end of the thermal resistance outer protection tube body. Effectively avoid the expansion and contraction force of the polymerization kettle body during the heating process, which will tear the connection between the jacket of the polymerization kettle and the polymerization kettle body, resulting in cracks in the kettle body and potential safety hazards, and effectively avoid water leakage at the temperature measuring port under the polymerization kettle Phenomena occur, improve production safety.

Description

technical field [0001] The invention relates to a temperature measuring device, in particular to a temperature measuring structure used at a temperature measuring port of a polymerization kettle, and a polymerization kettle adopting the temperature measuring structure. Background technique [0002] The lower temperature measuring point of the polymerization kettle is located above the lower head of the polymerization kettle. It is equipped with a temperature measuring thermal resistance to measure the reaction temperature in the kettle in time and transmit it to the internal operation room so as to know the production reaction status in real time. Because the temperature at the bottom of the polymerization kettle plays a very important role in the reaction process, the batch polymerization reaction, the polymerization kettle often needs to rise and fall to change the temperature, resulting in obvious thermal expansion and contraction. At the end of each production cycle, the ...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the unplanned stoppage phenomenon easily caused by the leakage of the lower temperature measuring port in the production process of the existing polymerization kettle, which not only delays the production process, causes direct and indirect economic losses, but also causes unfavorable safety hazards to production management. An improved structure of the temperature measuring port under the polymerization kettle and a polymerization kettle adopting this structure are provided to avoid the occurrence of water leakage at the temperature measuring port under the polymerization kettle and to avoid the hidden dangers of production safety.

The state of being separated from each other effectively ensures that the kettle body of the polymerization kettle and the outer protective tube of the thermal resistance are in a state of complete non-contact, and effectively avoids the expansion and contraction force generated by the kettle body during the heating process, which will cause the jacket of the kettle body to connect with the polymerization kettle. The connection of the kettle body is cracked, resulting in cracks in the kettle body and potential safety hazards; effectively avoiding the problem of water leakage at the temperature measuring port under the polymerization kettle, and improving production safety

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