WASTE HEAT RECOVERY APPARATUS AND METHOD FOR THE SAME

摘要

A waste heat recovery apparatus includes a waste processing module and a heat recovery module. The waste processing module includes a heat exchange unit and a drive unit. The heat exchange unit includes a hollow tubular structure having at least one material inlet, at least one material outlet and a screw mounted axially thereinside. The drive unit rotates the screw to extrude the waste material. The heat recovery module includes a heat storage unit, at least one conveying pipeline and a compression unit. The heat storage unit contains a heat-storing medium for storing thermal energy. The conveying pipeline connected to the heat exchange unit and the heat storage unit allows a working medium to flow through the heat exchange unit and the heat storage unit. The compression unit coupled to the conveying pipeline circulates the working medium to flow in the conveying pipeline.

主权项

1. A waste heat recovery apparatus, comprising:
a waste processing module, comprising: a heat exchange unit, further comprising: a hollow tubular structure configured to have two opposing open ends and a first material chamber formed therein; at least one material inlet located exteriorly on a first end of the hollow tubular structure and communicated with the first material chamber of the hollow tubular structure for supplying a waste material to the hollow tubular structure; at least one material outlet located exteriorly on a second end of the hollow tubular structure and communicated with the first material chamber of the hollow tubular structure for allowing the waste material to leave the hollow tubular structure; at least one screw, mounted axially inside the hollow tubular structure with two opposing ends extending out of the hollow tubular structure, each screw comprising: a hollow screw shaft configured to have both opposing ends extending out of the hollow tubular structure, a first opening and a second opening being located respectively at the corresponding opposing ends, and a second material chamber communicated with the first and the second openings for allowing a working medium flowing therethrough; and a helical blade, formed externally around the screw shaft with a predetermined pitch; a drive unit, located exteriorly of the hollow tubular structure for rotating the at least one screw to extrude the waste material to move forward; and a heat recovery module, located exteriorly of the waste processing module, further comprising: a heat storage unit configured to contain thereinside a heat-storing medium for storing thermal energy; a first conveying pipeline in communication with the heat exchange unit and the heat storage unit, the first conveying pipeline being divided into a first front section for conveying the working medium from the heat exchange unit to the heat storage unit and a first tail section for conveying the working medium from the heat storage unit back to the heat exchange unit; and a compression unit coupled to the first conveying pipeline for driving the working medium to flow within the first conveying pipeline.