A water-jacket structure heat exchanger used in automobile exhaust heating and heating system

Abstract

The invention discloses a water-jacket type heat exchanger for an automobile-exhaust heated air system, comprising an inner water jacket and an outer water jacket. The inner water jacket and the outer water jacket both comprises an air inlet end and an air outlet end, wherein the air inlet end is provided with an air inlet, and the air outlet end is provided with an air outlet; at least one layer of middle water jacket is arranged between the inner water jacket and the outer water jacket; the middle water jacket, the inner water jacket and the outer water jacket are all provided with communicated water inlet holes on one end and communicated water outlet holes on the other end; an air inlet cover plate is connected between the air inlet ends of both the inner water jacket and the outer water jacket; the other end of the air inlet cover plate is connected with an air outlet cover plate; a fastening component for connecting the water jackets of all layers is arranged between the air inlet cover plate and the air outlet cover plate; and folded or directly-communicated tail gas heat exchanging channels are formed by the water jackets, the air inlet cover plate and the air outlet cover plate. The water-jacket type heat exchanger for the automobile-exhaust heated air system is simple in structure, easy to make, convenient to discharge water, low in cost, large in water holding capacity and high in heat exchanging efficiency.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a water-jacket structure heat exchanger used in a vehicle exhaust gas heating and heating system. Background technique [0002] With the development of the economy, automobiles have become a tool that people use daily. Due to the continuous increase of automobile fuel consumption and the aggravation of automobile emission problems, the problems of automobile fuel saving and environmental protection have become increasingly prominent. Facing the limited oil resources and the national energy strategy. The threats and challenges of automobile energy saving and environmental protection technology have become the research and development hotspots in the field of automobile technology. At present, the fuel of buses, large and medium-sized passenger cars is generally diesel and natural gas, and a large amount of high-temperature exhaust gas is discharged into the atmosphere, which is not conducive to ...

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Problems solved by technology

[0006] The object of the present invention is to provide a water-jacket structure heat exchanger for automobile exhaust heating and heating system, which has the characteristics of simple structure, low cost, high heat exchange efficiency and easy water release, so as to solve the problem of automobile exhaust in the prior art. Problems existing in the heat exchanger of the heating and heating system

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