Thermoelectric converters (optional), thermocouple cable FOR MANUFACTURING Thermoelectric converters of the first embodiment

摘要

The claimed group of useful model relates to a thermometry and can be used for measuring temperatures in equipment used in long processes. According to a first embodiment of a thermoelectric converter is provided a cable comprising two thermocouples with the same nominal static characteristic. Moreover thermoelectrodes various thermocouples are made of wire having different concentrations of alloying elements and / or wire with different nominal cross-section and / or of the wire passed the preliminary heat treatment of various kinds. The design of thermocouple cable for manufacturing a thermoelectric converter according to the first embodiment consisting of four wire pairs made of two different thermocouple alloys. The wires are placed in a metal sheath of steel or heat-resistant alloy and insulated from each other and from the sheath of a mineral insulated magnesium oxide or aluminum oxide. In this wire, made of the same alloy thermocouple differ in concentration of alloying elements and / or the nominal cross-section and / or thermal pretreatment kind. According to the second embodiment is provided a converter thermoelectric comprising switching unit, a protective cover assembly mounting thermocouples formed with a through hole intended to accommodate a control or reference measuring means inside a protective cover, two sensing elements in the form of a thermocouple with the same nominal static characteristic. Wherein the thermocouple vary in material type, insulating thermoelectrodes and / or the cross section thermoelectrodes and / or concentration of alloying elements in thermoelectrodes and / or due to their thermal pretreatment and / or the number of elements of mechanical protection thermoelectrodes, its geometrical parameters . 3 NC 3 and ZP f-ly, 5 fig., 1 tab.