Multipoint high precision thermocouple

Abstract

The invention provides a multipoint high precision thermocouple. The multipoint high precision thermocouple comprises a wiring box, a protection tube, a corrugated tube, a mounting board, multiple screws and multiple thermocouples with different lengths, wherein a first end of the protection tube is in sealing connection with the wiring box, a second end of the protection tube is in sealing connection with a first end of the corrugated tube, a second end of the corrugated tube is in sealing connection with the mounting board, periphery of the protection tube is provided with a first annular mounting seat, the first annular mounting seat is provided with multiple assembling holes, an outer edge of the mounting board is provided with a second annular mounting seat, the second annular mounting seat is provided with thread holes identical to the assembling holes in quantity, axes of the multiple thread holes are overlapped with axes of the multiple assembling holes, the quantity of the screws is consistent with the quantity of the assembling holes, the screws, the thread holes and the assembling holes are in one-to-one correspondence, one ends of the screws sequentially penetrate through the assembling holes and the thread holes, and the the screws are in thread matching connection with the second annular mounting seat through the thread holes. The multipoint high precision thermocouple is advantaged in that temperature of different temperature measurement points in one same temperature measurement space can be simultaneously measured, and the multipoint high precision thermocouple can adapt to different temperature measurement occasions.

Description

technical field [0001] The invention relates to the technical field of thermocouples, in particular to a multi-point high-precision thermocouple. Background technique [0002] The most widely used temperature measurement and detection element in process detection today is thermocouple, especially in the reactor and preheater in the chemical industry, it is often necessary to monitor the temperature of multiple positions inside the reactor during its process detection , It is uneconomical to set up multiple thermocouples, so multi-point thermocouples are widely used. At present, the multi-point thermocouple sold on the market is mainly composed of three parts: explosion-proof junction box, protective sleeve and temperature measuring element. The components are fixed at the lower end of the explosion-proof junction box in the protective casing. Although multi-point measurement can be realized, the position of the measurement end of the temperature measurement element of the e...

AI Technical Summary

Problems solved by technology

At present, the multi-point thermocouple sold on the market is mainly composed of three parts: explosion-proof junction box, protective sleeve and temperature measuring element. The components are fixed at the lower end of the explosion-proof junction box in the protective casing. Although multi-point measurement can be realized, the position of the measurement end of the temperature measurement element of the existing multi-point thermocouple cannot be adjusted, and it is difficult to ensure the best position for measurement. inaccurate data

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