DEVICE FOR WATER HEATING AND/OR HOT WATER SUPPLY Russian patent published in 2007 - IPC F24H1/32 

FIELD: heat power engineering.

SUBSTANCE: device comprises housing, gas heat generator provided with the gas collector and combustion chamber, and heat exchanger whose top and bottom sections are provided with axisymmetric projections for flowing heat-transfer agent. The heat exchanger is made of a stack of plate sections arranged along the flow of hot gas. Each of the plate sections is made of a pair of shaped metallic sheets connected one to the other to define pressure-tight passages for flowing heat-transfer agent. The plates of each plate pair sections are interconnected so that to define pressure-tight passages for flowing hot gas. The pressure-tight passages for flowing heat-transfer agent are vertical and horizontal. The end pressure-tight vertical passages for flowing the heat-transfer agent are made so that to exclude discharging of hot gas and inflowing air to the heat exchanger. The cross-section of the mid pressure-tight vertical passages for flowing heat-transfer agent increases with height. The pressure-tight top passage is made in the top section of the plate section of the heat exchanger and distributes the heat-transfer agent over the vertical pressure-tight passages. The pressure-tight horizontal bottom passage is made in the bottom section of the plate section of the heat-exchanger connected with the combustion chamber of the heat generator and represents a collector for all pressure-tight vertical passages.

EFFECT: enhanced reliability and simplified structure.

5 dwg