Water jacket structure heat exchanger for vehicle exhaust heating warm air system

Abstract

The invention provides a water jacket structure heat exchanger for a vehicle exhaust heating warm air system. The water jacket structure heat exchanger for the vehicle exhaust heating warm air system comprises an outer layer cylinder sleeve and a heat exchange sleeve, wherein each of the outer layer cylinder sleeve and the heat exchange sleeve is of an annular cylinder structure, the heat exchange sleeve is connected into the outer layer cylinder sleeve in a sleeving way, a water flow channel for water to flow is formed between the heat exchange sleeve and the outer layer cylinder sleeve, and the heat exchange sleeve is internally provided with a vehicle exhaust inlet, an exhaust circulating channel and an exhaust outlet which is formed in the circumferential inner wall of the heat exchange sleeve. The water jacket structure heat exchanger adopts an I-shaped structure design, after passing the inlet, vehicle exhaust can evenly circulate and be distributed into the cylindric heat exchange sleeve, the heat exchange area between the vehicle exhaust and water can be increased, the heat exchange rate between the vehicle exhaust and the water is increased, the lost heat of the vehicle exhaust is well used, and energy sources are saved.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a heat exchanger with a water jacket structure used in an automobile tail gas heating and heating system, and belongs to the technical field of automobiles. 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 fuels of buses, large and medium-sized passenger cars are generally diesel and natural gas, and a large amount of high-temperature exhaust gas ...

AI Technical Summary

Problems solved by technology

[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 fuels of buses, large and medium-sized passenger cars are generally diesel and natural gas, and a large amount of high-temperature exhaust gas is discharged into the atmosphere, which is not conducive to environmental protection. , and wasting a lot of precious heat energy in vain

At present, only about 30% of the chemical energy released by the combustion of fuel in the automobile engine is converted into mechanical energy output by the crankshaft, and about 40% of the energy is discharged with the exhaust gas, and about 30% of the energy is taken out of the body by the cooling water. , with the development of engine technology becoming more and more mature and the thermal efficiency gradually reaching the limit, there are fewer and fewer traditional ways to improve the engine working cycle, and most of the heat taken away from the exhaust of the engine and the exhaust of the car is basically completely lost at present. , if part of the waste heat can be recovered, it will heat the heating system for various automobile exhaust gases, and the heat exchanger is an important part of the automobile exhaust heating and heating system. Disadvantages of complexity, high cost, low heat transfer efficiency and inconvenient water release

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