| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a heat exchanger comprising a device capable of efficiently preventing corrosion of the whole heat exchanger with a simple constitution. <P>SOLUTION: This heat exchanger includes a heat exchanger main body 20 including a main body barrel 11, a plurality of cooling tubes 13, a supporting plate 16, a water chamber cover 17 forming a water chamber, and tube plates 15 supporting both end portions of the cooling tubes 13, an external DC power source device 40 capable of supplying DC current, an insoluble electrode 30 mounted on a cooling water inflow water chamber cover 17a in a state of being electrically insulated, and a reference electrode 31 for detecting electric potential. A positive electrode of a DC current output circuit of the external DC power source device 40 is connected with the insoluble electrode 30, a negative electrode of the DC current output circuit of the external DC power source device 40 is connected with the tube plates 15 and the supporting plate 16, and protection current is supplied to the cooling water inflow water chamber cover 17, the tube plates 15 and the cooling tubes 13 through sea water. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
