| 摘要 |
FIELD: heat exchange technique; manufacture of water heating apparatus working on natural or liquefied gases. SUBSTANCE: domestic flow-through gas water heating apparatus has facing, supply and discharge pipes, water and gas burner unit and heat exchanger made in form of thin-walled stainless steel envelopes laid in staggered order in two or more tiers in thin-walled steel framework with longitudinal guides; relationship of diameters of envelopes of upper and lower tiers ranges from 0.6 to 0.8. EFFECT: apparatus is adaptable or various thermal conditions; avoidance of difficultly available and expensive on-ferrous metals and soldering parts at considerable reduction of welded joints; enhanced efficiency; reduced consumption of gas or reduction of overall dimensions of apparatus. 2 cl, 3 dwg |
