Multi-stage heat tube enhanced heat exchange ship exhaust gas waste heat temperature-difference power generation device and method

Abstract

The invention discloses a multi-stage heat tube enhanced heat transfer ship exhaust gas waste heat temperature-difference power generation device and method. The multi-stage heat tube enhanced heat exchange ship exhaust gas waste heat temperature-difference power generation device comprises a device body structure, a rear side copper plate, a front side copper plate, a top end copper plate, a temperature-difference power generation sheet, a heat-end heat tube, a cold-end heat tube, a cold-end copper plate and a cooling copper plate. A flue gas inlet is formed in the front end of the device body structure, and a flue gas outlet is formed in the tail end. The top end copper plate is installed at the top of the device body structure, and the front side copper plate and the rear side copper plate are installed on the front side and the rear side. According to the multi-stage heat tube enhanced heat exchange ship exhaust gas waste heat temperature-difference power generation device and method, the heat end of the temperature-difference power generation sheet performs heat exchange based on heat tube enhancement, the heat efficiency off the device is improved, and the waste heat recovered under unit length is remarkably increased. The cold end of the power generation sheet performs heat exchange based on heat tube enhancement, heat carried away by cooling water under the unit lengthis increased, the low temperature at the cold end is kept, the temperature difference of the cold end and the heat end of the power generation sheet, is ensured, and the overall performance with the device output power of unit length as a reference is greatly improved.

Description

technical field [0001] The invention relates to the technical field of ship energy saving and environmental protection, in particular to a novel method and device for generating power by recovering waste heat from exhaust gas of a main engine of a ship. Background technique [0002] At present, the rapid development of science and technology has accelerated the process of global economic integration. The exchanges and intercommunications between countries in the world have become increasingly frequent, and the volume of foreign trade has increased rapidly. Ships have become one of the main means of transportation for the development of the world economy. and economic prosperity played an extremely important role. [0003] A large number of studies have shown that there are relatively many forms of waste heat generated by marine diesel engines, mainly including waste heat such as smoke exhaust from marine diesel engines, cylinder jacket cooling water, and air coolers. About 5...

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Problems solved by technology

[0008] According to the above-mentioned technical problems, a multi-stage heat pipe enhanced heat exchange ship waste heat thermoelectric power generation device and power generation method are provided, which are used to solve the problem of the relatively low output power of the existing thermoelectric power generation and the utilization of flue gas waste heat by the device The shortcomings of low efficiency, small utilization, and insufficient heat exchange due to the large thermal resistance coefficient of the cold and hot ends of the power generation device

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