Low-temperature economizer system

Abstract

The present invention provides a low-temperature economizer system, including a flue gas duct, an economizer body and a flow guide assembly. The flue gas duct has a vertical section and a horizontal section in communication with a bottom end of the vertical section, one end of the vertical section adjacent to the horizontal section is arranged with a reducing section with a gradually reducing flow cross-section. The economizer body is arranged in the vertical section. The flow guide assembly includes a first flow guide component, a second flow guide component and a third flow guide component. The low-temperature economizer system of the present invention can reduce ash blockage in the flue gas duct and abrasion of the economizer, and prolong service life.