Ship separation type heat exchange system

Abstract

The invention discloses a ship separation type heat exchange system. The ship separation type heat exchange system comprises a heat exchange unit. The heat exchange unit comprises a heating section and a condensation section. The heating section is perpendicularly mounted in a ship smoke discharge flue. The steam discharge end of the heating section is arranged vertically upwards, and the liquid inlet end of the heating section is arranged vertically downwards. The heating section is internally filled with a working medium which is evaporated into steam. The condensation section is located outside the ship smoke discharge flue. The bottom end of the condensation section is higher than the top end of the heat exchange unit. The steam inlet end of the condensation section communicates with the steam discharge end of the heating section through a steam guide pipe. The liquid discharge end of the condensation section communicates with the liquid inlet end of the heating section through a liquid guide pipe. According to the ship separation type heat exchange system, the heat exchange unit is perpendicularly arranged in the ship smoke discharge flue, the condensation section is arrangedoutside the ship smoke discharge flue, and the bottom end of the condensation section is higher than the top end of the heat exchange unit. Compared with a traditional heat exchange system, the ship separation type heat exchange system has the advantages of being small in occupied area, modular in arrangement and installation, easy and convenient to use, capable of being flexibly arranged according to the site and the like. Heat generated from evaporation of the working medium and reflux condensation are cyclically used. The utilization rate and heat exchange efficiency are high.

Description

technical field [0001] The invention relates to the technical field of ship heat recovery, in particular to a separate heat exchange system for ships. Background technique [0002] Today's energy issues have become a top priority in economic development, and energy utilization is the focus of various types of industrial waste heat technologies. Ships are means of transportation that consume a lot of energy. The latest EEDI (Energy Efficiency Design Index) rules formulated by the International Maritime Organization IMO have clear requirements for reducing emissions and reducing energy consumption of ships. The exhaust gas temperature of a marine diesel engine is generally 300-400°C, and the heat taken away by the exhaust smoke accounts for 30%-45% of the total heat of the fuel, which is a huge waste of energy. Existing energy recovery devices generally install a waste heat boiler at the exhaust outlet to recover the waste heat of the flue gas to produce steam or hot water f...

AI Technical Summary

Problems solved by technology

[0004] However, there are still some defects in the current water tube waste heat boiler used to recover flue gas waste heat: this type of device occupies a large space, the piping system is complicated, and the on-site installation workload is relatively large

Images