Heat transfer device

1. A heat transfer device transferring heat to a piping system through which a fluid flows, comprising:

a high heat conductive heat transfer block surrounding said piping system;

a heat pipe formed in said heat transfer block along an extension direction of said piping system; and

a heating unit applying heat to said heat pipe,

wherein said heat transfer block includes a plurality of divided blocks dividable along the extension direction of said piping system, and

wherein the heat pipe includes an evacuated and decompressed vacuum space and a wick provided on an inner surface of the vacuum space, the wick having capillary force.

2. The heat transfer device according to claim 1 , wherein

said piping system includes a first pipe, a second pipe, and a coupling unit coupling one end of said first pipe and one end of said second pipe, and

said heat pipe extends from the other end of said first pipe to the other end of said second pipe.

3. The heat transfer device according to claim 2 , wherein

said coupling unit is larger in outer diameter than said first pipe and said second pipe, and

a tubular space extending along the extension direction of said piping system is formed at a portion closer to said piping system than said heat pipe in said heat transfer block.

4. The heat transfer device according to claim 1 , wherein

said piping system includes a first pipe, a second pipe, and a coupling unit coupling one end of said first pipe and one end of said second pipe,

said coupling unit is larger in outer diameter than said first pipe and said second pipe, and

said heat pipe includes a first channel embedded along said first pipe and a second channel embedded along said second pipe.

5. The heat transfer device according to claim 4 , wherein said heating unit is in thermal contact with said heat transfer block surrounding said coupling unit.

6. The heat transfer device according to claim 4 , wherein said heating unit includes a first heat source heating an end of said first channel on a side close to said coupling unit, and a second heat source heating an end of said second channel on a side close to said coupling unit.

7. The heat transfer device according to claim 4 , wherein

said heat transfer block includes a first block having said first channel embedded therein, a second block having said second channel embedded therein, and a coupling block surrounding said coupling unit, and

said heating unit is in thermal contact with said coupling block.

8. The heat transfer device according to claim 7 , wherein said heat pipe includes a third channel embedded in said coupling block.

9. The heat transfer device according to claim 1 , wherein said heat pipe is formed in only one of said divided blocks.

10. The heat transfer device according to claim 1 , wherein said heat transfer block has a polygonal outer shape in a cross section orthogonal to the extension direction of said piping system.

11. The heat transfer device according to claim 1 , wherein said evacuated and decompressed vacuum space of the heat pipe is a hollow portion formed within said heat transfer block, and a working fluid retained in said hollow portion.

12. The heat transfer device according to claim 1 , wherein

a groove portion is formed in an outer circumferential surface of said heat transfer block, and

said heat pipe includes a pipe member embedded in the groove portion and evacuated, and a working fluid retained in said pipe member.

13. The heat transfer device according to claim 1 , further comprising

equipment coupled to an end of said piping system, wherein

said heat transfer block surrounds said equipment.