Heat exchanger for heater to exchange heat between heating gases and surrounding heating water, has exhaust gas duct and vertical convection duct, and upstream flow guide element is assigned by surface enlarging element on waterside

摘要

The heat exchanger has exhaust gas duct and a vertical convection duct (1). An upstream flow guide element (3) is assigned by a surface enlarging element on the waterside. The surface enlarging element contour imitates wall side in contact with water. The flow guide element is casted with water side on the surface enlarging element.