Valley electricity steam boiler with fused salt heat transfer and heat storage function and method of valley electricity steam boiler for preparing steam

Abstract

The invention relates to a valley electricity steam boiler with a fused salt heat transfer and heat storage function and a method of the valley electricity steam boiler for preparing steam. The boiler comprises an electricity heat energy storage device, a steam output device, a preheater, a low temperature fused salt tank and a heat transfer medium pipeline; the electricity heat energy storage device comprises an electricity heating element and a high temperature fused salt tank; the electricity heating element is started at a valley electricity period; the heat transfer medium pipeline is communicated with the high temperature fused salt tank, the steam output device and the low temperature fused salt tank, and a heat transfer medium can circularly flow in the high temperature fused salt tank, the steam output device and the low temperature fused salt tank; the heat transfer medium and heat storage substances in the high temperature fused salt tank are fused salt. On one hand, the valley electricity with low price is used for heating at night, the heat is used on peak electricity time, the economic benefit is good, energy is saved, and the environment is protected; on the other hand, the quartz sand composite fused salt is used for heat transfer and heat storage, the use temperature is high, the energy storage efficiency is high, no heat is wasted, and for heat storage, in the valley electricity period within 24 hours, the heat provided by the valley electricity is continuously used for heating and generating the steam.

Description

technical field [0001] The invention relates to the field of electric steam boilers, in particular to an electric steam boiler which utilizes valley electricity and can store energy and a method for preparing steam. Background technique [0002] Electric boilers have been widely used in daily life and industry due to their convenience in use, simple operation, and energy transmission not limited by time and place. However, the existing electric boilers can only be heated during the use time, and the usual use time in daily life is during peak power hours, resulting in high energy costs. Therefore, how to reduce the energy cost of the electric heating boiler and have a high economy to ensure the practicability is the key research direction at this stage. Contents of the invention [0003] In order to solve the problems in the prior art, the present invention provides a valley electric steam boiler with molten salt heat transfer and heat storage and a method for preparing s...

AI Technical Summary

Problems solved by technology

However, the existing electric boiler can only be heated during the use time, and its usual use time in daily life is during peak power hours, resulting in high energy costs

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