WATER-HEATING BOILER Russian patent published in 2000 - IPC

FIELD: industrial boiler rooms and boiler rooms of housing-municipal objected. SUBSTANCE: boiler has vertical body accommodating furnace, economizer, side and ceiling screens made of tubes and communicating with inlet and outlet collectors. Side screens are made of radiation and convective panels manufactured of lowering and hoisting alternating tubes. Every two adjacent tubes are coupled to respective tube of radiation panel through tangential inlet and outlet branch pipes positioned in tiers and provided with flat slit-like cross-section. Inlet branch pipes are installed at an angle to direction of water stream motion, , where H is height of free cross-sectional area of inlet branch pipe; D is internal diameter of radiation panel tube. Parameters of free cross-sectional area of outlet branch pipe are 1.5-2 times as high as similar parameters of inlet branch pipe. In this case, inlet branch pipe of directed water flow and outlet branch pipe are spaced at L from each other with due regard for preserved stability of water flow directed movement according to preset trajectory of helical line. As a result, centrifugal effect of liquid rotation is obtained. EFFECT: improved design. 2 dwg