| 摘要 |
The present invention relates to a method relating to the operation of a burner and/or cooler ( 3 ), wherein gases are caused to flow through an inner pipe ( 7 ), out into an outer pipe ( 5 ) which surrounds the inner pipe ( 7 ), and back through that part of the volume of the outer pipe ( 5 ) not accommodated by the volume of the inner pipe ( 7 ). The invention is characterised by placing an inner bottom plates ( 8 ) in the outer pipe ( 5 ) in spaced relationship with the closed bottom ( 9 ) of said outer pipe ( 5 ), whereby the gases flowing through the inner pipe ( 7 ) and out into the outer pipe ( 5 ) are caused to turn back and pass between the outer pipe ( 5 ) and the inner pipe ( 7 ), thereby creating a gas pocket ( 12 ) between the bottom ( 9 ) of said outer pipe ( 5 ) and the bottom plate ( 8 ).
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