Fused salt pipeline heating device

Abstract

Disclosed is a fused salt pipeline heating device. The fused salt pipeline heating device comprises a fused salt pipeline (1), an automatic control circuit (10), an electric voltage regulator (13), a transformer (4) and a sensor (12). The input end of the electric voltage regulator (13) is connected with AC, the output end of the electric voltage regulator (13) is connected with the input end of the transformer (4), and the output end of the transformer (4) is respectively connected with the inlet end and the outlet end of the fused salt pipeline (1). The sensor (12) is installed on the outer wall of the fused salt pipeline (1). The actual temperature, detected by the sensor (12), of the fused salt pipeline (1) is compared with a temperature set through the automatic control circuit (10); when the temperature, measured through the thermocouple (12), of the fused salt pipeline (1) is smaller than the temperature set through the automatic control circuit (10), a signal is sent by the automatic control circuit (10) to control the electric voltage regulator (13), voltage regulation is carried out by the electric voltage regulator (13), and the temperature of the fused salt pipeline (1) is controlled.

Description

technical field [0001] The invention relates to a heating device, in particular to a molten salt pipeline heating device. Background technique [0002] It is very necessary to use suitable heat transfer and heat storage medium in the tower solar concentrated thermal power station. Since the solar thermal power generation system was applied to practice in the 1980s, different heat transfer and heat storage media have been used in different systems. The higher the temperature of the heat transfer medium, the higher the efficiency of the power generation system. Molten salt has good heat transfer characteristics, and using molten salt as a heat transfer medium makes the entire vapor pressure have a high diffusion capacity and a high heat capacity. Solar One solar power plant uses heat transfer oil as the heat transfer medium, but the upper limit of the heat transfer oil temperature is 400°C, and the high price is not suitable for large-scale solar power plants. The mixed sal...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of low heating efficiency and poor safety performance of the existing molten salt pipeline heating device, and propose a safe and reliable molten salt pipeline heating device with high heating efficiency

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