The structure of the industrial thermocouple: Fixed flange, is a flat welded steel flange (JB81-94), which is equivalent to the standard of the Ministry of Chemical Industry (HG5010-58, HG5019-58), with a smooth sealing surface, nominal pressure Pg=25kgf/cm2, suitable for general requirements of the occasion. C-type fixed flange, also flat welded steel flange (JB81-94) is equivalent to the Ministry of Chemical Industry standard (HG5010-58, HG5019-58) with concave and convex sealing surface, nominal pressure Pg=25kgf/cm2 suitable for toxic and harmful media, with strong anti-leakage performance. D-type fixed flange is a concave and convex sealing surface equivalent to the standard of the Ministry of Chemical Industry (JB82-94), and the nominal pressure Pg=100kgf/cm 2 has good sealing, which is suitable for occasions with certain requirements for sealing and pressure resistance.
Application of chemical thermocouple: the thermocouple protection tube adopts a special structure to make it close to the inside of the cracking furnace tube, and does not affect the flow of materials, which is suitable for the temperature measurement and control of the cracking furnace in the process of ethylene production, and is suitable for the temperature and degree measurement and control of high temperature and high pressure places in the production process of petroleum and chemical industry, and is an indispensable temperature for oil refineries and high-pressure polyethylene.
