SECONDARY HEAT EXCHANGE AND SUPPLY SYSTEM USING OFF-PEAK ELECTRICITY FOR HEATING AND ENERGY STORAGE

摘要

A secondary heat exchange and supply system using off-peak electricity for heating and energy storage. The system comprises: a heat storage device (1) using off-peak electricity, a heat storage constant-pressure water tank (2), a plate heat exchanger secondary heat exchange device (5), and an intelligent control device (13), wherein the heat storage constant-pressure water tank (2) is disposed above the heat storage device (1) using off-peak electricity, the heat storage constant-pressure water tank (2) and the heat storage device (1) using off-peak electricity are connected to the plate heat exchanger secondary heat exchange device (5), the intelligent control device (13) controls the outlet water temperature of the heat storage constant-pressure water tank (2) and the heat storage capacity of the heat storage device (1) using off-peak electricity respectively, and the intelligent control device (13) controls the plate heat exchanger secondary heat exchange device (5) to supply heat to a heating system of a user. The system fully utilizes the low-priced electricity in the off-peak period at night, thus realizing the environmentally-friendly purposes of saving energy and reducing the cost of heating supply while satisfying the heating need in winter.