Biomass boiler condensing condensate water heater
Technical field
The utility model relates to the heat recovery technology field, particularly a kind of biomass boiler condensing condensate water heater.
Background technology
In the present domestic biomass direct combustion power generation project, the exhaust gas temperature of the biomass boiler that is adopted still adopts the smoke evacuation standard of original coal-burning boiler, this is because original coal-burning boiler is owing to exist the flue gas low-temperature etching problem, exhaust gas temperature is higher, just can avoid the flue gas low-temperature etching problem.But find that in actual applications biomass fuel has self characteristics, content of acid gas is lower in its smoke components, and is relatively not too serious to the back-end surfaces cold end corrosion, has heat utilization and is worth.Therefore the problem of prior art existence is: can not make full use of the heat energy of fume emission, biomass power generation unit capacity and parameter are lower.
Summary of the invention
In the present domestic biomass direct combustion power generation project, the exhaust gas temperature of the biomass boiler that is adopted still adopts the smoke evacuation standard of original coal-burning boiler, this is because original coal-burning boiler is owing to exist the flue gas low-temperature etching problem, exhaust gas temperature is higher, just can avoid the flue gas low-temperature etching problem.But find that in actual applications biomass fuel has self characteristics, content of acid gas is lower in its smoke components, and is relatively not too serious to the back-end surfaces cold end corrosion, has heat utilization and is worth.Therefore the problem of prior art existence is: can not make full use of the heat energy of fume emission, biomass power generation unit capacity and parameter are lower.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Description of reference numerals is as follows:
The 1-shell, 2-inverting chamber, 3-hydrophobic pocket, the outlet of 4-condensate water, 5-condensate water coil pipe, 6-condensate water inlet, 7-exhanst gas outlet, 8-condensation-water drain.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
Referring to accompanying drawing, a kind of biomass boiler condensing condensate water heater, comprise shell, said shell 1 top is provided with gas approach 9, be provided with the inverting chamber 2 and the hydrophobic pocket 3 that are communicated with up and down in the shell 1, be provided with the condensate water coil pipe 5 of vertical layout in the inverting chamber 2, the shell of inverting chamber 2 is provided with condensate water outlet 4 and the condensate water inlet of arranging up and down 6, and the shell of hydrophobic pocket 3 is provided with exhanst gas outlet 7 and the flue gas condensing water out of arranging up and down 8.
Operation principle of the present utility model is: the tail flue gas outlet of original biomass boiler connects the gas approach 9 on this condensate water heater top.Flue gas enters hydrophobic pocket 3 after lowering the temperature by inverting chamber 2 processes and condensate water heat exchange, cooled smoke is transported to the original air and gas system deduster of boiler by the exhanst gas outlet on the shell 7, and the condensed water that flue gas is condensed out in heat transfer process is mixing dust and discharging as sewage through the condensation-water drain 8 that is arranged in inverting chamber 3 bottoms as sewage.Condensate water enters the heat exchange coil 3 that is arranged in the inverting chamber 2 by condensate water inlet 6, sends by condensate water outlet 4 behind condensate water and the flue gas heat exchange in inverting chamber 2.