Combined treatment system for tail gas and waste heat of marine diesel engine
A marine diesel engine and combined treatment technology is applied in seawater treatment, water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of affecting the oxidation liquid, affecting the effect of desulfurization and denitrification, and affecting the current efficiency of seawater electrolysis. High power generation efficiency and good effect
Pending Publication Date: 2021-12-10
ANQING CSSC DIESEL ENGINE
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Problems solved by technology
[0005] The disadvantage is that when the seawater temperature is low (the temperature is 13.5°C) / the seawater flow rate is high (the flow rate is moderate), it will affect the current efficiency of seawater electrolysis, and the current efficiency will directly affect the oxidation solution (available chlorine) and The generation of alkaline liquid, thus affecting the effect of desulfurization and denitrification
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Embodiment 1
[0033] like Figure 1-4 As shown, a combined treatment system for tail exhaust and waste heat of a marine diesel engine includes: a temperature flow regulating device 1, an electrolytic desulfurization and denitrification system 2, and a thermoelectric power generation system 3;
[0034] The temperature flow regulating device 1 is used for heat exchange and steady flow of the input diesel engine exhaust gas and seawater to obtain cooling exhaust gas and warming seawater; the temperature flow regulating device 1 includes a tubular heat exchanger 11 and is installed in a tubular heat exchanger Several flow stabilizing devices 12 in the heat exchange tubes of the device 11, the tube heat exchanger 11 is respectively provided with cold end ports for connecting the seawater inlet pipe 13 and the seawater outlet pipe 14, and for connecting the diesel engine exhaust gas inlet pipe 15 and the hot end port of the diesel exhaust gas outlet pipe 16, the seawater inlet pipe 13 is connecte...
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The invention relates to a combined treatment system for tail gas and waste heat of a marine diesel engine. The combined treatment system comprises a temperature and flow adjusting device, an electrolytic desulfurization and denitrification system and a thermoelectric power generation system, wherein the temperature and flow adjusting device performs heat exchange and flow stabilizing on input diesel engine waste gas and seawater to obtain cooled waste gas and heated seawater, and the electrolytic desulfurization and denitrification system comprises an electrolytic antifouling device for electrolyzing the heated seawater to obtain a denitrification solution and a desulfurization solution, a denitrification device for denitrifying the cooled waste gas by using the denitrification solution, and a desulfurization device for carrying out desulfurization treatment on the cooled waste gas by utilizing the desulfurization solution. According to the invention, seawater subjected to temperature rise and flow stabilization is electrolyzed, so that the waste gas desulfurization and denitrification efficiency of a desulfurization solution and a denitrification solution can be improved, and the waste gas purification effect is better; and the cooled waste gas and the heated desulfurization and denitrification solution are respectively used as a high-temperature heat source and a low-temperature heat source for thermoelectric power generation, so that the temperature difference can be controlled at a proper temperature, and the power generation efficiency is higher.
Description
technical field [0001] The invention belongs to the technical field of exhaust gas treatment, and in particular relates to a combined treatment system for tail exhaust and waste heat of a marine diesel engine. Background technique [0002] According to statistics, on a global scale, the air pollution caused by exhaust emissions from marine diesel engines accounts for about 5-10% of the total air pollution, and even as high as 30-40% in port cities; with the continuous growth of global shipping volume, this Undoubtedly, it will significantly increase the proportion of environmental pollution in coastal cities. [0003] In order to prevent ship exhaust pollution, in the prior art, electrolysis and antifouling devices are used to electrolyze seawater, and the obtained alkaline solution and oxidizing solution can respectively realize denitrification, Desulfurization. [0004] The advantage of this kind of exhaust gas treatment system is that the ship operates in the ocean and ...
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IPC IPC(8): B01D53/78B01D53/60C02F1/461F28D7/06C02F103/08
CPCB01D53/78B01D53/60C02F1/461F28D7/06C02F2103/08
Inventor 昌涛王涛
Owner ANQING CSSC DIESEL ENGINE