Cast aluminum heat exchange fin for fuel gas hot water heat exchanger

Abstract

A cast aluminum heat exchange fin for a fuel gas hot water heat exchanger comprises a heat exchange fin body, a water inlet , a water outlet and a water flow channel are formed in the heat exchange fin body, the water inlet is communicated with the water outlet through the water flow channel, the cast aluminum heat exchange fin further comprises heat exchange columns, and a plurality of rows of heat exchange columns are distributed on the two sides, in contact with smoke, on the heat exchange fin body. The heat exchange efficiency of the fuel gas hot water heat exchanger can be effectively improved, the size of the heat exchange fin can be reduced, the weight is reduced, materials are saved, and cost is lowered.

Description

technical field [0001] The invention relates to a cast aluminum heat exchange fin for a gas hot water heat exchanger, in particular to a cast aluminum heat exchange fin for a gas wall-hung boiler heat exchanger. Background technique [0002] In the prior art, when ordinary cast aluminum heat exchange fins are exchanging heat, the high-temperature flue gas generated by gas combustion is in a laminar flow, and the high-temperature flue gas flows in layers along the wall surface, that is, there is no mixed movement of the fluid in the heat flow direction, and the heat transfer is basically Basically, it relies on the heat conduction of molecular diffusion, the heat exchange area is small, and the heat exchange efficiency is low at this time. [0003] In order to make heat exchangers with the same thermal efficiency, ordinary heat exchangers need to increase the volume of the combustion chamber and increase the length of the water channel, resulting in large, bulky heat exchange...

AI Technical Summary

Problems solved by technology

[0003] In order to make heat exchangers with the same thermal efficiency, ordinary heat exchangers need to increase the volume of the combustion chamber and increase the length of the water channel, resulting in large, bulky heat exchangers and a waste of materials. At the same time, the increase in the length of the water channels makes the water resistance of the heat exchanger itself too large , it is necessary to choose a circulating pump with higher power, which greatly increases the cost

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