Shipborne heat pump water heater system and heating method

Abstract

The invention discloses a shipborne heat pump water heater system which comprises a compressor, a cabin internal condenser, an electronic expansion valve, a cabin external evaporator, a methyl alcohol water storage container, at least two conveying pumps, at least two methyl alcohol water reforming hydrogen production electricity generation modules, a power conversion system, a ship propelling system and an air and residual gas mixer.The methyl alcohol water reforming hydrogen production electricity generation modules integrate reformers and fuel batteries.High-temperature residual gas produced by the reformers is input to the air and residual gas mixer.The air and residual gas mixer is used for mixing external air with the high-temperature residual gas to be medium-temperature mixed gas which is conveyed to the evaporator.The fuel batteries are used for enabling hydrogen and oxygen to generate an electrochemical reaction to produce electric energy to be output and supplied to the compressor, the conveying pumps and the ship propelling system.The shipborne heat pump water heater system can still efficiently work when the temperature of air outside a ship is lower than -5 DEG C, the cabin external evaporator will not frost, self power supply can be achieved, meanwhile, power can be supplied to the ship propelling system, and the heat of the high-temperature residual gas and the heat of external air can be utilized at the same time.

Description

Technical field [0001] The invention relates to the technical field of RV water heaters, and in particular to a ship-borne heat pump water heater system and a heating method. Background technique [0002] At present, small and medium-sized ships such as civilian fishing boats and yachts are mainly powered by internal combustion engines. The main problem of internal combustion engines is that fuel combustion will produce exhaust gas that pollutes the environment. Fuel leakage will pollute waters. These pollutions affect aquatic product breeding, growing waters or beautiful environmental waters. The impact of scenic spots is far greater than that of general areas. Moreover, the internal combustion engine will make a lot of noise when it is working, which will interfere with the work, leisure and rest of the ship. To cope with this problem, the technology that uses fuel cells as power for ships has gradually been developed. Because traditional shipboard water heaters can use the h...

AI Technical Summary

Problems solved by technology

However, the above-mentioned device using fuel cells as ship power and heat source has at least the following disadvantages: first, it only utilizes the heat emitted by the fuel cells to generate electricity, and does not utilize the heat of high-temperature residual gas discharged from the reformer, and the heat utilization rate is low; 2. The heat emitted by the fuel cell when generating electricity is directly dissipated into the cabin through the cooling system, which is independent of the on-board heat pump water heater system. Therefore, when the air temperature outside the cabin is low, the on-board heat pump water heater system is still difficult To work properly, electricity or other auxiliary heat sources are required to heat the air, the efficiency of the heat pump is greatly reduced, and there will still be frosting problems on the evaporator outside the cabin of the shipboard heat pump water heater system

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