| 摘要 |
PURPOSE: A hot water boiler with improved thermal efficiency is provided to maximize the thermal absorption of a combustion gas and increase thermal efficiency, since the combustion gas rises through 6 flue tubes to heat water in a water tank. CONSTITUTION: A hot water boiler with improved thermal efficiency comprises a combustion container(10), an auxiliary container(20), and a flue pipe(30). The inside of the boiler container is separated into a left combustion container and a right auxiliary container. The outside periphery of the combustion container is wound with hot water tubes(11) in a coil type. The auxiliary container comprises a lower ash treating space(21) and 6 flue tubes(22). The 6 flue tubes connect to a water tank between upper and lower plates to vertically pass therethrough. The flue pipe is installed between the left combustion container and the right auxiliary container. The flue pipe comprises a circulation space, upper, and lower circulation pipes(31,32). The upper circulation pipe is installed on the top of the left plate of the flue pipe and communicates with the left combustion container. The lower part circulation pipe is installed on the lower part of the right plate of the flue pipe and connects to a lower ash treating space. |
