Molten salt storage tank with leakage detection and thermal compensation device

Abstract

The invention discloses a molten salt storage tank with a leakage detection and thermal compensation device. The molten salt storage tank comprises a tank body, a sleeve is arranged below the tank body, the top end of the sleeve is connected with a bottom plate of the tank body in an attached mode, a leakage detection bottom plate is arranged on the lower portion of the sleeve, the edge of the leakage detection bottom plate is fixedly connected with the inner wall of the sleeve, and a cavity is defined by the sleeve, the leakage detection bottom plate and the bottom plate of the tank body. More than one heating rod is arranged at the upper portion in the cavity, the cavity is filled with a thermal insulation material layer, the lower portion in the cavity communicates with a molten salt collecting tank through a salt discharging pipe, a plurality of thermocouples for measuring temperature are arranged on the leakage detection bottom plate, and the multiple thermocouples are respectively and electrically connected with an electrical control device. According to the molten salt storage tank with the leakage detection and thermal compensation device, the molten salt storage tank can be rapidly and evenly preheated, the time needed for preheating is greatly shortened, the molten salt leakage phenomenon can be found in time, leaked molten salt can be recycled, and pollution to the environment is avoided.

Description

technical field [0001] The invention relates to the field of solar thermal power generation, in particular to a molten salt storage tank with leak detection and thermal compensation devices. Background technique [0002] One of the challenges in harnessing renewable energy, especially solar energy, is dealing with intermittency in energy supply caused by weather, diurnal sunlight fluctuations, and seasonal variations. One way to effectively manage the variability of the solar resource is to add Thermal energy storage device, when there is surplus power, the changed energy is stored, and then when the power generated by solar energy is insufficient or not generated, the stored energy is released, so as to meet the demand for continuous power supply. [0003] In solar thermal storage technology, the uniformity of preheating of molten salt storage tanks used to store thermal energy before use has always been a restrictive factor affecting the safety of storage tanks. Due to the...

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Problems solved by technology

[0003] In solar thermal storage technology, the uniformity of preheating of molten salt storage tanks used to store thermal energy before use has always been a restrictive factor affecting the safety of storage tanks. Due to the need to spend a lot of time to uniformly preheat molten salt storage tanks, resulting in Project progress is slow

[0004] In addition, the molten salt storage tank still has leakage phenomenon, which makes the molten salt storage tank unable to be used normally and causes serious pollution to the environment. How to quickly detect the molten salt leakage is a key issue in this field at present

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