| 摘要 |
The invention relates to the boiler manufacture, in particular to the boilers for individual use in heating of dwellings. The heating boiler contains a body, a combustion chamber with a burner, a water jacket provided with cold water inlet and hot water outlet pipes, which includes closed vertical sections for water, the walls of which are made of metal sheet, are coupled between them by welding and between which there are formed ports for passage of the combustion products, a cover and a bottom plate. The vertical sections are made of congruent U-shaped bent elements, the edges of which are bent outside, mounted one into another so that the flanges, the length of which exceed the distance between the walls, form an exterior wall closing them by means of external welds. Into the cover it is installed a horizontal section for water, placed above the vertical sections so that between them there is formed a port for exhaust of combustion products. The vertical sections intercommunicate between them and each section is coupled with the horizontal one by overflow pipes. The cold water inlet pipe is fixed in the lower part of the external vertical section and the hot water outlet pipe - into the horizontal section. The amount of the internal vertical sections may constitute one or more.
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