Dual-channel heat transmission heat exchanger with rectangular heating pipe and manufacturing process thereof

Abstract

The invention relates to a dual-channel heat transmission heat exchanger with a rectangular heating pipe and a manufacturing process of the dual-channel heat transmission heat exchanger. The heat exchanger comprises outer heat supply pipes the longitudinal sections of which are rectangular, wherein the outer end of each outer heat supply pipe is plugged through an end socket closure plate; a notch is correspondingly arranged on the pipe walls of the same ends of the two adjacent heat supply outer pipes, another notch is arranged on the other same ends of the next adjacent outer heat supply pipes are correspondingly, and the outer heat supply pipes are communicated through the notches; the outer heat supply pipes are internally provided with tap water heat absorption pipes which are communicated through tap water communicating pipes, and the tap water communicating pipes pass through the notches; and inner heat supply pipes are arranged in the tap water heat absorption pipes, and the inner heat supply pipes are communicated with a cavity body of the outer heat supply pipes. According to the heat exchanger and the manufacturing process, the effective heat energy is utilized fully, a double-pipe cold fluid wall of at the center of a pipe cavity is heated, the heat-transfer area is increased, heat fluid and cold fluid are heated in a circulating manner by three channels, and the heat transfer efficiency is improved. A stainless steel thin wall pipe, a plate manufacture punching, stretching and flanging are adopted; the thin wall stainless steel welding difficulty is reduced due to the embedding type, the side pinched, so that the welding is easy, and acid is filled in an inner channel for cleaning scale generated in the inner channel.

Description

technical field [0001] This patent relates to a heating water heater that can be installed and used on the household heating pipeline to heat and dissipate heat, and can exchange hot water for bathing. It specifically relates to a stainless steel rectangular heating tube dual-channel heat transfer edge heat exchanger and its manufacturing process . Background technique [0002] The applicant applied for authorization on April 4, 2005 and was authorized on May 24, 2006. The patent number is 200520082097.1, and the authorization announcement number is CN2783245Y. Among the commercially available commodities, the prior art and the patented product whose housing is a heating channel can be divided into two types. An inner coiled copper tube of 15-25mm, the diameter of the copper tube is Φ8-9.52mm, countercurrent and mixed flow. The other is the water storage type with a large cavity box. After years of market user inspections, it has been proved that the heating area is small ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above technical defects such as small heat transfer area, low heat exchange efficiency and poor effect of the existing and original patents, and provide a method that makes full use of effective heat energy, heats the cold fluid in the center of the lumen with double tube walls, increases Heat transfer area, hot and cold two kinds of fluid three-channel circulation heating, rectangular heating tube double-channel heat transfer heat exchanger with improved heat exchange efficiency and its manufacturing process

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