Finned tube low-pressure economizer system using boiler waste heat
A low-pressure economizer and boiler waste heat technology, which is applied to feed water heaters, preheating, lighting and heating equipment, etc., can solve problems that affect equipment life, reduce exhaust gas temperature, corrosion, etc., to increase service life and reduce low temperature Corrosion, the effect of increasing the inlet temperature
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[0011] Depend on figure 1 It is known that the boiler waste heat utilizes finned tube low-pressure economizer system, including water inlet pump 1, low-pressure heating zone I2, low-pressure heating zone II3, low-pressure heating zone III4, recirculation pipe 5, low-pressure economizer 6, temperature controller I7, Temperature controller II 8, regulating valve 9 and inlet water temperature regulating valve 10; figure 1 The arrows in the figure indicate the flow direction of the condensed water. The condensed water is drawn in from the inlet pump 1 and passes through the low-pressure heating zone Ⅰ2, the low-pressure heating zone Ⅱ3 and the low-pressure heating zone Ⅲ4 in turn, the recirculation pipe 5, the low-pressure economizer 6 and the low-pressure heating zone Ⅰ2 is connected in parallel, and the temperature controller Ⅰ7 and temperature controller Ⅱ8 are respectively installed at the 6 inlet and outlet of the low-pressure economizer, the regulating valve 9 is installed a...
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