Integrally-brick-plugged thermocouple provided with cooling water loop

Abstract

The invention discloses an integrally-brick-plugged thermocouple provided with a cooling water loop and belongs to the technical field of thermocouples used for an induction heating furnace. According to the technical scheme, the integrally-brick-plugged thermocouple provided with the cooling water loop comprises a thermocouple assembly and an equipment installation assembly, wherein a wiring box of the thermocouple assembly is connected with a thermocouple, the outer side of the thermocouple is provided with a non-metal protection tube which is sealed on the tail end, and a metal tube sleeves the side, close to the wiring box, of the non-metal protection tube; the non-metal protection tube of the thermocouple assembly is inserted into a metal protection tube arranged in a couple-used special-shaped brick and is fixedly connected with a connection steel plate arranged on a connection cylinder body through an end cover flange arranged at the outer side of the metal tube. Under a particularly bad condition, even if a protection sleeve of the thermocouple cracks or breaks in the production process, a tested medium is not leaked outwards, the dual effects of shake resistance and leakage prevention are realized, and the safety performance is improved.

Description

technical field [0001] The invention belongs to the technical field of thermocouples for induction heating furnaces, and in particular relates to an integral plug-type thermocouple provided with a cooling water circuit. Background technique [0002] In the process of metal smelting, precious metal thermocouples are important measurement equipment for induction heating furnaces. During the operation of current induction heating furnaces, the furnace body needs to be frequently tilted to complete the heating, heat preservation and unloading process. Due to the thermocouple setting In the upper part of the heating furnace body, during the process of frequent tilting of the heating furnace body, the thermocouple protection sleeve is easily corroded and worn out in a short period of time due to the influence of the working environment, resulting in cracking and fracture, which greatly reduces the thermoelectricity. The service life of the couple increases the production cost. C...

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Problems solved by technology

[0002] In the metal smelting process, precious metal thermocouples are important measurement equipment for induction heating furnaces. During the operation of current induction heating furnaces, the furnace body needs to be frequently tilted to complete the heating, heat preservation and unloading process. Due to the thermocouple setting In the upper part of the heating furnace body, during the process of frequent tilting of the heating furnace body, the thermocouple protection sleeve is easily corroded and worn out in a short period of time due to the influence of the working environment, resulting in cracking and fracture, which greatly reduces the thermoelectricity. The service life of the couple increases the production cost

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