A tri-piece thermal energy body heat exchanger having multi-layer pipeline and transferring heat to exterior through outer periphery of pipeline comprising:
- a first flow path (102) that includes first flow gathering chambers (103) respectively connected to a first upper fluid inlet/outlet port (104) at an upper end of the heat exchanger and a first lower fluid inlet/outlet port (104) at a lower end of the heat exchanger, and a plurality of a first flow guiding pipe members (101) connected in parallel between the first flow gathering chambers (103), whereby a first thermal energy body (105) formed in a fluid state flows from one of the first lower and upper fluid inlet/outlet ports (104) to one of the first flow gathering chambers (103), then in parallel from the one of the first flow gathering chambers (103) through the first flow guiding pipe members (101) to the other of the first flow gathering chambers (103), then through the other of the first lower and upper fluid inlet/outlet ports (104);
- a second flow path (202) that includes second flow gathering chambers (203) respectively connected to a second upper fluid inlet/outlet port (204) at the upper end of the heat exchanger and a second lower fluid inlet/outlet port (204) at the lower end of the heat exchanger, and a plurality of a second flow guiding pipe members (201), wherein the second flow guiding pipe members (201) have an inner diameter larger than an outer diameter of the first flow guiding pipe members (101), the second flow guiding pipe members (201) being sleeved and installed at the exterior of the first flow guiding pipe members (101) such that the first flow guiding pipe members (101) and the second flow guiding pipe members (201) form a structure having two layers of pipelines, and the diameter difference defined between the inner diameter of the second flow guiding pipe members (201) and the outer diameter of the first flow guiding pipe members (101) form parallel connections between the second flow gathering chambers (203), the parallel connections having an annular cross section, whereby a second thermal energy body (205) formed in a fluid state flows from one of the second lower and upper fluid inlet/outlet ports (204) to one of the second flow gathering chambers (203), then in parallel from the one of the second flow gathering chambers (203) through the parallel connections formed between the first flow guiding pipe members (101) and the second flow guiding pipe members (201) to the other of the second flow gathering chambers (203), then through the other of the second lower and upper fluid inlet/outlet ports (204);
- wherein respective outer layers of the second flow guiding pipe members (201) are in contact with a third thermal energy body (305) formed in a gaseous or liquid state or a solid thermal energy body, thereby forming a three-layer annular tri-piece thermal energy body heat exchanger, so that the heat exchanging and transferring is performed among the second thermal energy body (205) and the first thermal energy body (105) and the third thermal energy body (305).