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.