Finned-tube hot air gas furnace

Abstract

The invention provides a finned-tube hot air gas furnace. The finned-tube hot air gas furnace comprises a hot air furnace body which is divided into a heat exchange area at the upper part and a hearth at the lower part, wherein a hot air furnace cold air inlet is formed in one side of the hot air furnace body, and a hot air furnace hot air outlet is formed in the other side of the hot air furnace body; the interior of the heat exchange area is divided into an S-shaped heat exchange channel through partitions; finned tubes are arranged in the S-shaped heat exchange channel; lots of heat is generated by combustion in the hearth and transmitted to the heat exchange area through a steel plate at the bottom of the heat exchange area and the finned tubes; a thermocouple is arranged on the outer side of the hot air furnace hot air outlet; and a centrifugal fan is arranged on the outer side of the thermocouple. The finned-tube hot air gas furnace is compact in structure and occupies a relatively small space; owing to the design and the use of the finned tubes, the heat exchange area is increased; and air passes through the multiple layers of partitions in the hot air furnace body and circularly flows, so that air turbulence is promoted, the heat transfer coefficient is increased, the heat exchange efficiency is improved, and equipment saves more energy.

Description

technical field [0001] The invention relates to the technical field of roasted seeds, peanuts, nuts and other roasted seeds and nuts drying equipment, in particular to a finned tube type gas hot blast stove. Background technique [0002] At present, the gas hot blast stoves on the roasted seeds and nuts drying equipment market are mainly shell and tube type and burner direct combustion type. The heat transfer efficiency of the shell and tube hot blast stove is not high, and the volume is large, the product cost is high, and it needs to occupy a large space. ; while the roasted nuts produced by the burner direct-fired hot blast stove are not of high quality, and the equipment needs frequent maintenance, which has higher requirements for workers; and these two kinds of hot blast stoves consume a lot of energy. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a finned tube type gas-fired hot air stove to solve the pr...

AI Technical Summary

Problems solved by technology

[0002] At present, the gas hot blast stoves on the roasted seeds and nuts drying equipment market are mainly shell and tube type and burner direct combustion type. The heat transfer efficiency of the shell and tube hot blast stove is not high, and the volume is large, the product cost is high, and it needs to occupy a large space. ; while the roasted nuts produced by the burner direct-fired hot blast stove are not of high quality, and the equipment needs frequent maintenance, which has high requirements for workers; and these two kinds of hot blast stoves consume a lot of energy

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