Heat exchange device for conserving energy of water heater

摘要

A heat exchange device for conserving energy of a water heater comprises an upper cover (10), a heat exchange plate module (30), a heat exchange tube module (40), and a base (20). A top surface (11) of the upper cover (10) is provided with a water inlet (14), and a water outlet is arranged near a bottom surface of the base (20). The heat exchange plate module (30) is arranged below the water inlet (14) of the upper cover (10), and is connected to the heat exchange tube module (40) to form a sealed communicating water passage, and the two modules are arranged at an inner portion of the base (20). Hot shower water flowing through the water inlet (14) of the upper cover (10) first makes contact with the heat exchange plate module (30), such that room-temperature water therein is preheated by the heat exchange tube module (40) and absorbs maximum heat by means of heat exchange before being guided to the water inlet of a water heater (2), thereby greatly reducing energy consumed by the water heater.