Protective sleeve for thermoelectric couple of converter
A technology for thermocouples and protective sleeves, which is applied in the field of protective sleeves for thermocouples in reforming furnaces, can solve the problems of extremely high mechanical performance requirements for protective sleeves, shortened service life of thermocouples for temperature measurement, and easy damage to protective tubes of thermocouples, etc., to achieve Low cost, extended service life, good thermal stability
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Embodiment 1
[0014] The present invention proposes a protective cover for a reformer thermocouple, and its raw materials include by weight: 55 parts of main materials, 3 parts of crosslinking agent, 0.2 parts of calcium-zinc stabilizer, 2.5 parts of toughening agent, and 10 parts of purple sand compound , calcined kaolin 5-12, glass fiber 2 parts, talc powder 7 parts, expanded perlite 4 parts, heavy calcium carbonate 8 parts, polycaprolactam 1 part, polyethylene glycol 1200 2 parts, coloring agent 1 part.
Embodiment 2
[0016] The present invention proposes a protective cover for thermocouples in a reformer, and its raw materials include by weight: 65 parts of main materials, 1 part of crosslinking agent, 0.4 parts of calcium-zinc stabilizer, 1 part of toughening agent, and 20 parts of purple sand compound , 5 parts of calcined kaolin, 6 parts of glass fiber, 2 parts of talc, 10 parts of expanded perlite, 2 parts of ground calcium carbonate, 2 parts of polycaprolactam, 1 part of polyethylene glycol 1200, and 2 parts of coloring agent.
[0017] The purple sand compound is prepared by the following process: mix and stir purple sand, medical stone, tourmaline, and water evenly, vacuum calcinate, pulverize, add hydroxypropyl methylcellulose, heat up water and stir evenly, add starch octenyl succinate , konjac gum was stirred, filtered, dried, and pulverized to obtain the purple sand compound.
Embodiment 3
[0019] The present invention proposes a protective cover for a reformer thermocouple, and its raw materials include by weight: 58 parts of main materials, 2.5 parts of crosslinking agent, 0.25 parts of calcium-zinc stabilizer, 2 parts of toughening agent, and 12 parts of purple sand compound , 10 parts of calcined kaolin, 3 parts of glass fiber, 5 parts of talc, 6 parts of expanded perlite, 6 parts of heavy calcium carbonate, 1.2 parts of polycaprolactam, 1.7 parts of polyethylene glycol 1200, and 1.2 parts of coloring agent.
[0020] The main ingredients include by weight: 30 parts of thermoplastic polyester elastomer, 16 parts of metallocene polypropylene, and 4 parts of urea-formaldehyde resin. The toughening agent includes by weight: 1 part of toluene diphenyl phosphate, 0.4 part of chlorinated paraffin, and 0.8 part of dibutyltin dilaurate.
[0021] The purple sand composite is prepared by the following process: mix and stir purple sand, medical stone, tourmaline, and wat...
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