System for detecting molten salt leakage of photo-thermal power generation and heat storage device by utilizing electrode plates

Abstract

The invention discloses a system for detecting molten salt leakage of a photo-thermal power generation and heat storage device by utilizing electrode plates. The system involves a detection circuit, and a data acquisition device, array electrode plate groups and an alarm device which are connected into the detection circuit, wherein the array electrode plate groups are arranged in a thermal insulation material of a molten salt storage tank foundation, and each electrode plate group comprises the first electrode plate and the second electrode plate which are spaced. According to the system, when no molten salt leaks, the first electrode plates and the second electrode plates are not in contact with each other, and the circuit is disconnected; when molten salt leaks to the electrode plates,the high-temperature liquid molten salt between each first electrode plate and the corresponding second electrode plate enables the two electrode plates to form an access, generated electrical signalsare acquired by the data acquisition device, and the alarm device is triggered to remind people of molten salt leakage; and therefore, the leakage of a high-temperature molten salt storage tank can be discovered in time, or further, a leakage position of a tank body can be determined so as to conduct treatment as soon as possible.

Description

Technical field [0001] The present invention relates to the field of detection and treatment of leakage of molten salt energy storage system storage tanks in solar thermal power generation, in particular to a system for detecting leakage of molten salt in a solar thermal power storage device using electrode sheets. Background technique [0002] Facing the serious environmental pollution caused by the depletion of traditional fossil energy and its use, countries in the world are currently vigorously promoting energy transition, and the development of renewable energy is an inevitable trend. Among the many renewable energy utilization technologies, solar thermal storage power generation is one of the most promising application technologies. In the technology of solar thermal power generation, because solar energy is intermittent and unstable, solving the continuous and stable supply of solar thermal power stations is the key to achieving large-scale applications, improving efficien...

AI Technical Summary

Problems solved by technology

Due to the limitation of the cost and the influence of installation on the basic characteristics, the number of thermocouples actually installed is limited, and the thermocouple itself is a point-type temperature measurement technology. Unless the leakage of molten salt happens just above the thermocouple, the temperature change can only be detected. Difficult to find molten salt leakage in time

Therefore, this method is difficult to realize all-round detection of leaks in the entire molten salt tank

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