A molten salt constant temperature system and its application method

Abstract

The invention provides a molten salt constant temperature system and its use method, comprising a molten salt tank, a constant temperature working salt tank and a water heat exchange system, the constant temperature working salt tank is provided with a salt-salt heat exchanger, the outlet of the molten salt tank is connected The heat exchange system is connected, the outlet of the water heat exchange system is connected with the salt-salt heat exchanger, and the outlet of the salt-salt heat exchanger is connected with the molten salt tank. The invention utilizes the low-temperature molten salt to take away the heat of the high-temperature molten salt in the working salt tank, and converts the excess heat into high-temperature steam, thereby achieving the purpose of constant temperature control of the working molten salt, ensuring that the temperature fluctuation of the molten salt is between ±2°C, and at the same time Realized waste heat recovery and utilization. The invention is safe, reliable, simple in structure, stable in performance, energy-saving, environment-friendly and low in cost. By installing a pre-heater between the water supply device and the steam drum, the temperature of the water entering the steam drum can be increased to ensure the good operation of the evaporator; at the same time, it can effectively reduce the fluctuation of the water level in the steam drum, reduce the temperature difference between the upper and lower walls of the steam drum, and reduce the exchange of metals. Variable stress, improve equipment life.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and in particular relates to a molten salt constant temperature system and an application method thereof. Background technique [0002] In recent years, with the development of the economy, the demand for wire rods has increased sharply, and the consumption of high-end wire rods is increasing day by day. Due to the development of key technologies such as long-span bridge design, civil engineering construction technology, steel box girder and steel wire for bridge cables, major progress has been made in the construction of large bridges, and suspension bridges and cable-stayed bridges have exceeded the kilometer span. With the increase of the span and the number of lanes, the steel wires of the main cables of suspension bridges at home and abroad are in the stage of ultra-high strength development, and the continuous improvement of the tensile strength of the steel wires has become the deve...

AI Technical Summary

Problems solved by technology

Due to the large output of wire rods and the huge heat generated, the traditional constant temperature system has huge equipment, complex structure, and poor constant temperature accuracy, which is difficult to meet the requirements

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