HEAT EXCHANGER TUBE FOR HEATING SYSTEM

Abstract

The present invention discloses a heat exchanger tube for a heating system, which is suitable for any kinds of heating systems mounted in doors. The heat exchanger tube comprises a tube body, in which a plurality of lobes are formed on an outside surface of the tube body around the peripheral of the tube body and a plurality of ribs are formed on an outside surface of the tube body along the length of the tube body. Each of the ribs is inclined with respect to the longitude axis of the tube body by an angle of about 15 degree. The advantages of the present invention are in that: 1. the ribs could increase the heat exchanging surface; 2. the lobes could increase the heat radiating surface; and 3. as the heat exchanger tube is made of aluminum or aluminum alloy, the heating medium would not be polluted by rust generated in iron tubes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of the structure of the heat exchanger tube according to an embodiment of the present invention;

FIG. 2 is a vertical cross-sectional view of the heat exchanger tube according to the present invention;

FIG. 3 is a perspective view of the heat exchanger tube according to the present invention;

FIG. 4 is a schematic view of the utility of the heat exchanger tube according to the present invention;

FIG. 5 illustrates an electrical heating device in the related art;

FIG. 6 is a schematic view of natural gas burning furnace in the related art;

FIG. 7 is a schematic view of wood burning furnace in the related art; and

FIG. 8 is a schematic view of a heat exchange device for hot water in the related art.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to the preferred embodiments of the invention, which is illustrated in the accompanying figures.

As shown in FIGS. 1-3, the heat exchanger tube of the present invention comprises a tube body 1, which includes an inside surface 3 exposed to a heating medium and an outside surface exposed to the air. The traversal cross section of the tube body could be in any suitable shape, such as a polygon, a circle, a rectangle and so on.

A plurality of lobes 2 are formed on the outside surface of the tube body 1 around the peripheral of the tube body 1. Preferably, each of the lobes 2 is formed along the whole length of the tube body 1. The lobes 2 could be formed by any means known in the related art. For example, the lobes 2 may be formed integrally with the tube body 1, or the lobes 2 could be formed by means of cutting the outside surface of the tube body 1. Preferably, the lobes 2 are systematical with respect to a longitude axis of the tube body 1.

As a preferred embodiment of the present invention, each lobe 2 may comprise a plurality of laminates to become in a laminated form. As mentioned above, the laminates of each lobe could be formed by any means known in the related art. For example, the laminates may be formed integrally with the tube body 1, or may be formed by means of cutting the lobes 2 after the later are formed.

As another preferred embodiment of the present invention, a plurality of ribs 4 may be formed on the inside surface 3 of the tube body 1 along the length of the tube body 1.

Preferably, each of the ribs 4 is inclined with respect to the longitude axis of the tube body 1, thus, each rib would be helically formed on the inside surface 3. More preferably, each rib 4 is inclined with respect to the longitude axis of the tube body 1 by an angle of about 15 degree.

The heat exchanger tube of the present invention may be made of any suitable material. Preferably, the heat exchanger tube may be made of aluminum or aluminum alloy.

The heat exchanger tubes of the present invention may be connected to a central heating system. As shown in FIG. 4, a plurality of heat exchanger tubes are provided between an inlet port 5 and an outlet port 6 of the heating system. A heating medium is supplied to the heat exchanger tube through the inlet port 5 and flows out of the heat exchanger tube via the outlet port 6. Thus, the heating medium inside the heat exchanger tubes could transfer heat to the air outside the heat exchanger tubes.

Although the description of the present invention is made with reference to the preferred embodiments, the present invention is not limited to these embodiments. Various modifications and changes can be made to the invention by those skilled in the art without departing from the spirit and scopes of the present invention.

Claims

1. A heat exchanger tube for a heating system, comprising a tube body containing an inside surface exposed to a heating medium and an outside surface exposed to the air, wherein a plurality of lobes are formed on the outside surface of the tube body around the peripheral of the tube body.

2. The heat exchanger tube according to claim 1, wherein each of the lobes comprises a plurality of laminates in a laminated form.

3. The heat exchanger tube according to claim 1, wherein the lobes are systematical with respect to a longitude axis of the tube body.

4. The heat exchanger tube according to claim 2, wherein the lobes are systematical with respect to a longitude axis of the tube body.

5. The heat exchanger tube according to claim 1, wherein a plurality of ribs are formed on the inside surface of the tube body along the length of the tube body.

6. The heat exchanger tube according to claim 5, wherein each of the ribs is inclined with respect to a longitude axis of the tube body.

7. The heat exchanger tube according to claim 6, wherein each of the ribs is inclined with respect to the longitude axis of the tube body by an angle of 15 degree.

8. The heat exchanger tube according to claim 2, wherein a plurality of ribs are formed on an inside surface of the tube body along the length of the tube body.

9. The heat exchanger tube according to claim 8, wherein each of the ribs is inclined with respect to a longitude axis of the tube body.

10. The heat exchanger tube according to claim 9, wherein each of the ribs is inclined with respect to the longitude axis of the tube body by an angle of 15 degree.

11. The heat exchanger tube according to claim 1, wherein a plurality of said heat exchanger tubes are provided between an inlet port and an outlet port of the heating system for heating medium passing through.

12. The heat exchanger tube according to claim 1, wherein the heat exchanger tube is made of aluminum or aluminum alloy.