| 摘要 |
An agricultural boiler is provided to prevent steam from being easily cooled by forming a drum of the boiler in a dual structure and forming a circulation path. An agricultural boiler(10) comprises a flange(26), an outer drum(12) coupled to the flange, a middle drum(16) installed in the outer drum, an inner drum(20) installed in the middle drum. A burner is installed on the flange. A flue is formed between the outer drum and the inner drum such that air combusted in the inner drum is circulated. A first circulation passage(22) and a second circulation passage are formed in the inner drum. A steam room is installed between the middle drum and the inner drum such that steam generated from the first and second circulation passages is circulated.
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