Heat tracing system and heat tracing method for molten salt circulation pipeline of solar concentrating power station

Abstract

The invention relates to a heat tracing system and method for a solar heat collecting power station fused salt circulation pipeline. A system or method which is simple in technology, high in reliability and operability and capable of avoiding use of electric heating and can solve the problems encountered in heat tracing of a photothermal power generation fused salt system does not exist at present. The heat tracing system comprises a heat collecting tower and a receiver, and is characterized by further comprising a heat salt tank, a cold salt tank, a fused salt-air heat exchanger, an air circulation pump, an ultrasonic oscillation starter, a fused salt pipeline and a bypass, wherein the fused salt pipeline and the receiver are connected, the cold salt tank and the heat salt tank are connected, the heat salt tank and the fused salt-air heat exchanger are connected, and the fused salt-air heat exchanger and the fused salt pipeline are connected; and the air circulation pump and the ultrasonic oscillation starter are both installed on the fused salt pipeline, the cold salt tank and the fused salt pipeline are connected, and the bypass is arranged at the position, close to the receiver, of the fused salt pipeline. The heat tracing system and method are high in reliability and operability and capable of avoiding use of electric heating.

Description

technical field [0001] The invention relates to a heat tracing system and a heat tracing method for a molten salt circulation pipeline of a solar heat concentrating power station, which belongs to the technical field of solar thermal power generation applications, and is specifically used in the heat tracing aspect of a solar thermal system using molten salt as a circulating medium. Background technique [0002] Solar thermal power generation refers to the use of a large-scale array of reflectors to collect solar heat, take it away through a heat transfer medium, and generate steam from a heat exchange device, combined with traditional turbogenerator technology, so as to achieve the purpose of power generation. The solar thermal power generation system is mainly composed of a concentrating subsystem, a heat collecting subsystem, a thermal storage subsystem, and a power generation subsystem. [0003] Compared with general new energy power generation, such as wind power and ph...

AI Technical Summary

Problems solved by technology

The disadvantage is that it consumes a large amount of high-quality energy—electric energy, which greatly increases the power consumption of the plant and seriously affects the economy

[0006] To sum up, there is currently no system or method that has a simple process, high reliability, and strong operability, and avoids the use of electric heating to solve the heat tracing problems faced by the molten salt system of solar thermal power generation.

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