| 摘要 |
PROBLEM TO BE SOLVED: To provide a jointing structure for thermal equipment preventing leakage of combustion gas from jointed parts of a thermal equipment body part and a combustion device to outside. SOLUTION: In the thermal equipment, such as a boiler and a combustion furnace, having a combustion chamber and the combustion device 3, the thermal equipment body part comprising the combustion chamber etc. and the combustion device 3 are detachably jointed to each other, and since a sealing material such as a rope packing is sandwiched between abutment faces of the jointed parts to joint them, leakage of combustion gas from the jointed parts is prevented. In the jointing structure for the thermal equipment, the double annular sealing material comprising an inner sealing material 5a and an outer sealing material 5b is sandwiched between the jointed parts, a sealed space surrounded by abutment faces of the double sealing material, the thermal equipment body part and the combustion device 3 is provided to serve as a sealing air chamber, and an air supply structure for supplying air with higher pressure than combustion chamber internal pressure is provided within the sealing air chamber. COPYRIGHT: (C)2009,JPO&INPIT
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