Evaporator capable of utilizing waste heat

Abstract

The invention discloses an evaporator capable of utilizing waste heat. The evaporator comprises a soot gas inlet pipe, a dust removing square pipe and an evaporator body; the soot gas inlet pipe is inflange connection to the inlet end of the dust removing square pipe, the evaporator body comprises a casing and further comprises a hot fluid inlet pipe, a hot fluid outlet pipe, a cold fluid inlet pipe, a cold fluid outlet pipe and a spiral heat exchange pipe which are fixedly welded to the casing, the hot fluid inlet pipe is in flange connection to the outlet end of the dust removing square pipe, a filter mesh frame is fixedly welded to the inner pipe wall of the dust removing square pipe, the inner wall of the filter mesh frame is fixedly connected with a filter net, a comb brush for cleaning the filter net is arranged on the side, close to the soot gas inlet pipe, of the filter net, and the comb brush moves vertically in the dust removing square pipe along with a sliding sleeve. According to the evaporator, hot soot gas is used for exchanging heat with cold water in the evaporator, and therefore hot steam can be used for production and life; and soot particles are filtered out through the filter net to avoid blockage of the evaporator, the heat utilization rate is high, the structure is simple, operation is easy, and energy saving and environmental protection are achieved.

Description

technical field [0001] The invention relates to the technical field of evaporators, in particular to an evaporator capable of utilizing waste heat. Background technique [0002] Due to the shortage of energy sources, with the further development of energy-saving work. A variety of new, energy-saving and advanced furnace types are becoming more and more perfect, and the use of high-quality insulation materials such as new refractory fibers has significantly reduced the heat dissipation loss of the furnace. The use of advanced combustion devices has enhanced combustion, reduced the amount of incomplete combustion, and the air-fuel ratio has become more reasonable. However, the technology of reducing heat loss from exhaust smoke and recovering waste heat from flue gas is still not progressing fast. In order to further improve the thermal efficiency of the kiln and achieve the purpose of saving energy and reducing consumption, recycling flue gas waste heat is also an important ...

AI Technical Summary

Problems solved by technology

The utility model lacks a filter device for the dust filter, and the evaporator is easy to introduce smoke and dust, which will cause blockage of the evaporator pipeline and reduce the heat exchange capacity of the evaporator

Images