Solar-powered constant-temperature salt bath system

Abstract

The invention provides a solar-powered constant-temperature salt bath system. The system comprises a solar-powered vacuum tube heater, a salt bath furnace, a temperature sensor, a fused salt pump and a computer control system, wherein the solar-powered vacuum tube heater absorbs the radiation of sunlight through a coating of a vacuum tube so as to heat fused salt; the salt bath furnace consists of a salt bath container and the fused salt in the salt bath container; the temperature sensor is arranged in the salt bath furnace and used for detecting the temperature of the fused salt in the salt bath furnace and providing a temperature signal; the fused salt pump is used for providing power for the flow of the fused salt; the computer control system controls the stop and operation of the fused salt pump according to a preset program command through the temperature signal provided by the temperature sensor; the two ends of the solar-powered vacuum tube heater are connected to the salt bath furnace through pipelines respectively; and the fused salt pump is arranged between the solar-powered vacuum tube heater and the salt bath furnace. The solar-powered constant-temperature salt bath system of the invention performs thermal treatment by using solar energy, so that a large amount of electric energy can be saved; moreover, the thermal treatment temperature can be kept stable by the computer control system, so that thermal treatment effect is ensured.

Description

technical field [0001] The invention belongs to the field of heat treatment, and mainly relates to a solar constant temperature salt bath system for performing low temperature salt bath treatment on steel. Background technique [0002] The growth of the world's population and the expansion of production mean a large consumption of resources and energy. The global consumption of non-renewable mineral energy is increasing, but the global mineral energy reserves are very limited. According to the demand in 2000, oil is expected to be exploited 25 years, according to the demand in 1992, coal can only be mined for 219 years. How to obtain energy in the future is a major issue facing mankind. The energy consumption of salt bath furnace heating is huge, commonly known as "electric tiger". [0003] Salt-bath furnace refers to an industrial furnace that uses molten salt liquid as a heating medium and immerses workpieces in salt liquid for heating. According to the working temperat...

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Problems solved by technology

However, this kind of heat treatment furnace can only heat treat workpieces of a certain size, and the heat treatment temperature cannot be guaranteed to be stable, and long-term annealing and aging treatments cannot be performed.

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