This utility model relates to the field of boiler technology and discloses a boiler energy-saving
system, including a boiler, a low-temperature water tank, a medium-temperature water tank, a high-temperature water tank, a gas-liquid heat exchange
system, an inlet
pipe, and an
exhaust pipe. The gas-liquid heat exchange
system includes a first
heat exchanger and a second
heat exchanger. Through the reasonable connection and optimization of the low-temperature, medium-temperature, and high-temperature
water tanks, the
water temperature is rapidly increased, improving the boiler's
thermal efficiency while ensuring a stable rise in
boiler water temperature, thereby reducing fuel consumption. By setting up the first and second heat exchangers, in conjunction with the medium-temperature and high-temperature
water tanks, a two-stage counter-current heat exchange method is formed. This fully utilizes high-grade heat sources to improve the heat exchange efficiency of the boiler system, further enhancing energy-saving effects and solving the problem of low heat exchange efficiency and inability to improve heat
recovery when using only a single-stage heat exchange method.