A laser measuring device for detecting liquid metal level

Abstract

The invention relates to a laser measuring device for detecting a liquid level of liquid metal, and the laser measuring device is characterized in that a laser transmitting device is rigidly fixed on the position of a first glass window on one side of a closed liquid metal storage tank, the laser transmitting device comprises a laser, an expanding lens, a pinhole filter, a collimation objective lens and a lead rail, a laser reflection receiving device is rigidly fixed on the position of a second glass window on the other side of the liquid metal storage tank, the laser reflection receiving device comprises a Fourier transform lens and a charge coupled device (CCD) photoelectric detector, data collection of CCD detection signals is conducted by a middle signal collection and processing part, and the data is transmitted to a computer. The invention relates to a liquid metal liquid level online detection device which is used for detecting the liquid level of the liquid metal with a small volume and a high precision requirement, an alarming system of the device can be combined with a rear end control platform, the liquid level is maintained at a constant range through an adjusting valve, the device is high in measurement precision, the structure and the internal stable pressure environment of the metal tank are not changed, and the remote measurement and the digital display can be realized.

Description

technical field [0001] The invention relates to a laser measuring device for detecting the liquid level of liquid metal, which belongs to the technical field of liquid metal liquid level measurement. For example, it is especially suitable for the measurement of high-temperature liquid lead-bismuth liquid level. Meet the requirements of both real-time processing and high speed. Background technique [0002] Lead-bismuth liquid metal is the preferred target material and coolant for ADS, and the liquid lead-bismuth circuit can carry out research on key scientific and technological issues of lead-bismuth. The characteristics of lead-bismuth liquid metal level measurement are: high temperature, high density, closed storage tank, severe corrosion of materials, and high measurement accuracy requirements. [0003] At present, the common liquid level measurement systems at home and abroad are divided into two types: contact type and non-contact type. Contact type such as manual rul...

AI Technical Summary

Problems solved by technology

Compared with the traditional float type and manual measuring method, the radar type and the ultrasonic type have considerable advantages in terms of technical content and measurement accuracy, but due to the limitations of the price and the use environment, the radar type and ultrasonic type liquid level gauges are not widely used in China. cannot be used on a large scale

For lead and bismuth storage tanks, radar and ultrasonic level gauge probes are not easy to install and maintain

At present, the most widely used liquid level gauges in China are manual gauges and float type gauges. Manual gauges have high requirements for workers to operate, and when the environment is harsh, there are serious potential safety hazards. The present invention is aimed at liquid lead bismuth Development of a high-precision laser liquid level measuring device

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