Copper-aluminum compound high-efficiency condensation heat exchanger

Abstract

The invention discloses a copper-aluminum compound high-efficiency condensation heat exchanger. The copper-aluminum compound high-efficiency condensation heat exchanger comprises a heat exchanger shell, condenser pipes and valve bodies, wherein the condenser pipes are arranged in the heat exchanger shell; each condenser pipe is composed of an inner pipe and an outer pipe, the outer pipe is in expanded connection with the outer side of the inner pipe, the inner pipe belongs to a copper pipe, and the outer pipe belongs to an aluminum pipe; and the valve bodies are connected with the condenser pipes. The copper-aluminum compound high-efficiency condensation heat exchanger both comprises the copper pipes and the aluminum pipes, and the application method of materials is unique. Compared with acommon stainless steel heat exchanger, the heat exchange efficiency of the copper-aluminum compound high-efficiency condensation heat exchanger is substantially improved. Meanwhile, through the corrosion resistant property of aluminum oxide, under the high-temperature condensate water working environment, the heat exchanger cannot be corroded, and the service life of the heat exchanger is prolonged.

Description

technical field [0001] The invention relates to a copper-aluminum composite high-efficiency condensation heat exchanger. Background technique [0002] In the prior art, the condensing heat exchanger is used as a secondary heat exchanger and needs to be used in conjunction with the primary heat exchanger in the high temperature section. It is connected to the primary heat exchanger through the flange at the bottom, and the arrangement is up and down. It mainly uses the waste heat of low-temperature flue gas and the condensation latent heat of water vapor in the flue gas for heating. The flue gas after heat exchange is directly discharged from the chimney. The condensed water falls into the liquid receiving pan, and a water outlet is arranged at the bottom of the liquid receiving pan, through which the condensed water is discharged into the waste water treatment device, and discharged after the treatment reaches the standard. [0003] The condensing tube of the existing con...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a copper-aluminum composite high-efficiency condensation heat exchanger in order to overcome the defect that the condensation tube of the condensation heat exchanger in the prior art cannot take into account corrosion resistance and high-efficiency heat exchange

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