High-temperature liquid metal detecting system

Abstract

The disclosure belongs to the technical field of instrumentation for liquid metal, and in particular relates to a high-temperature liquid metal detecting system. The high-temperature liquid metal detecting system includes a power supply, a warning device, a thermocouple temperature display and a high-temperature liquid metal probe; wherein the high-temperature liquid metal probe, the power supplyand the warning device are connected in series through a lead; the high-temperature liquid metal probe comprises a transition connecting piece, an insulating piece, a sealing piece and a structural piece for supporting and fixing; the sealing piece is connected with the insulating piece by the transition connecting piece; the insulating piece is made of high-temperature-resistant ceramic materials. The high-temperature liquid metal detecting system has the beneficial effects that: the high-temperature liquid metal probe adopts a ceramic tube which is both a structural piece and an insulating piece, and the sealing piece adopts a metal gasket; when stainless steel materials are used for other structural pieces and connecting pieces, the maximum use temperature can reach 650 DEG C; if a nickel-based alloy or a refractory metal material is used as substitutes for manufacturing the probe and a threaded connection piece, the temperature resistance can be further improved to 1000 DEG C.

Description

technical field [0001] The disclosure belongs to the technical field of detection instruments for liquid metals, and in particular relates to a detection system applied to high-temperature liquid metals. Background technique [0002] In liquid metal devices, temperature and liquid level are important parameters related to operation and safety. Due to the high operating temperature of liquid metals, especially liquid metal working fluids such as sodium, sodium-potassium alloys, lithium, and lead-bismuth alloys, which also have active chemical properties, generally cannot be in direct contact with air, and require high airtightness of the equipment, so Compared with common working fluids such as water, the temperature and liquid level measurement in liquid metal equipment is more difficult. [0003] The measurement of liquid metal temperature generally adopts the method of thermocouple trap, that is, a blind tube is used to extend into the working fluid, and then an armored t...

AI Technical Summary

Problems solved by technology

In general, exhaust pipes, working medium inlet and outlet pipes and other connecting pipes need to be arranged on the head, which often results in cramped space, interference between connecting pipes, and difficult operation.

[0007] In view of the above-mentioned deficiencies of ordinary liquid metal probes, conventional liquid metal detection systems cannot detect liquid metals at high temperatures.

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