A coal-fired marine power boiler

Abstract

It is an innovative technology that adopts high-temperature air combustion technology to burn or gasify solid fuels such as coal and biomass. The boiler created by this technology is called regenerative moving bed, which includes two types of coal pellet moving bed and ceramic ball regenerative bed. Among the furnace types available for coal-fired ships, the heat-storage moving bed boiler may have the highest thermal efficiency of the unit, that is, it is the most suitable power boiler for coal-fired ships. The operation mode of the boiler is divided into combustion and cold slag carbonization time periods in time, and these two processes are operated alternately. During the combustion period, the four-way reversing valve 4 periodically switches the flow direction of exhaust gas and air, and the two heat storage beds 2 and 3 alternately store or release heat. The heat storage is to store the waste heat of high-temperature exhaust gas. The heat release is to use this waste heat to heat the incoming cold air to obtain high-temperature air above 600°C, so as to obtain a higher combustion temperature and a high radiation heat transfer rate. This is the core feature of the regenerative moving bed boiler. This feature This makes heat storage moving bed boilers more suitable for ships than other types of boilers.

Description

1. Technical field: [0001] The first-level discipline of this technology should belong to the field of power engineering and engineering thermophysics, and the second-level discipline should belong to the field of thermal energy engineering and engineering thermophysics. It is an innovative technology that uses high-temperature air combustion technology (HTAC—High Temperature Air Combustion, hereinafter referred to as HTAC technology) to burn or gasify solid fuels such as coal and biomass. We name the boiler created by this technology heat storage Moving bed (SMB----Storage move bed) boiler, which includes two beds of briquette moving bed and ceramic ball heat storage bed. The heat storage moving bed boiler is in the furnace type available for coal-fired ships, and it may be the thermal work of the unit. The most efficient, that is, the most suitable power boiler for coal-fired ships. [0002] Marine power boilers burn briquettes or biomass fuel, which is the most popular cle...

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Problems solved by technology

[0011] Based on the above-mentioned market application prospects, technology maturity and the in-depth disclosure of this article, some infringers may be attracted after this technology is disclosed. Here, I may as well declare that I will reserve the right to sue until it is discovered, but welcome to negotiate with the license. I hope you are interested. The powerful and qualified boiler factory or research institution cooperates with us. If there is no qualification, no discussion is required, so as not to waste the time of both parties

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