Heat pump water heater system of fuel cell limo and heating method

Abstract

The invention discloses a heat pump water heater system of a fuel cell limo. The heat pump water heater system comprises a compressor, a condenser, an electronic expansion valve, an evaporator, a methanol water storage container, a transfer pump, a reformer, a fuel cell, an electric power conversion system, a limo motor and an air residual air mixer. The reformer produces high temperature residual air, to be discharged into the air residual air mixer; the air residual air mixer is used for mixing the outside air with the high temperature residual air to form intermediate temperature mixed gas to be fed to the evaporator; the fuel cell is used for causing hydrogen and oxygen to conduct the electrochemical reaction, to generate electric energy for output; the electric power conversion system is used for converting the electric energy output by the fuel cell into the electricity required by loads, to supply power for the compressor, the transfer pump and the limo motor. The heat pump water heater system of the fuel cell limo can still work efficiently normally when the outside air is lower than zero degree, and the evaporator does not frost. According to the heat pump water heater system of the fuel cell limo, power supply by the limo motor is met, the noise is low, and the air environment is not polluted. The heat pump water heater system of the fuel cell limo can use high temperature residual air and outside air heat simultaneously, thereby being more energy-saving and power-saving.

Description

technical field [0001] The invention relates to the technical field of caravan water heaters, in particular to a heat pump water heater system and a heating method for a fuel cell caravan. Background technique [0002] RV, also known as "home on wheels", has the two functions of "house" and "car", but its attribute is still a car, which is a mobile type with basic facilities necessary for home. Typical home facilities include: bedding, water heaters, stoves, refrigerators, cabinets, sofas, dining tables and chairs, bathroom facilities, air conditioners, TVs, audio and other furniture and electrical appliances, which can be divided into driving area, living area, bedroom area, sanitary area, Kitchen area, etc. RV is a fashion product that integrates "clothing, food, housing, and transportation" to realize "travel in life, life in travel". [0003] At present, the vast majority of RVs use gasoline and diesel as fuel, which not only consumes oil resources, but also causes air ...

AI Technical Summary

Problems solved by technology

[0006] However, the disadvantage of the heat pump water heater system for vehicles is that the lower the air temperature outside the vehicle, the smaller the heat supply, especially when the air temperature outside the vehicle is below zero, it is difficult for the heat pump to work normally, and electricity or other auxiliary heat sources are needed to cool the air. heating, the efficiency of the heat pump is greatly reduced

In addition, frost will form on the evaporator of the vehicle heat pump water heater system, and regular defrosting is required. The defrosting module technology can refer to Chinese patent application 201210152219.4 for the defrosting method of the air source heat pump system. After adding the defrosting module to the air source heat pump, Not only the stability is reduced, the maintenance cost is increased, but also a considerable part of energy is lost

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