| 摘要 |
<p>PROBLEM TO BE SOLVED: To significantly prolong the life of a fluid-heating apparatus by forming fluid inlet and outlet ports in a pipe for heating a fluid, disposing a heating element within the pipe, and providing an impurity filter in the fluid outlet port of the pipe. SOLUTION: A particle-removing filter 2 is disposed within a particle container 1, and an exhaust-gas inlet port 3 and an exhaust-gas outlet port 4 are formed in a fluid-heating apparatus 5. An enlarged cylindrical portion 12 is formed at a fluid outlet port 9b of the cylindrical pipe 9 which has a heating wire 10 disposed therein. An impurity filter 13 is inserted into the enlarged cylindrical portion 12. Air discharged by a blower 6 is heated within the cylindrical pipe 9 by the heat of the heating wire 10, and also heated by the filter 13. While heat generation by the heating wire 10 is discontinued, an exhaust gas containing impurities 14 does not flow into the pipe 9 from the fluid outlet port 9b of the pipe 9. Thus, disconnection of the wire resulting from abnormal combustion, and exfoliation of a protective oxide film due to its reduction can be prevented, whereby the life of the fluid-heating apparatus can be prolonged.</p> |
