Meal heat preservation dining car system based on heat pump technology

The utility model relates to the technical field of food heat preservation equipment, in particular to a meal heat preservation dining car system based on a heat pump technology, which comprises a dining car body, a heat pump circulation system, a control system and a ventilation system, the heat pump circulation system comprises a compressor, a condenser, an electronic expansion valve and an evaporator which are sequentially connected through a pipeline. The compressor, the condenser, the electronic expansion valve and the evaporator form a circulating loop which is communicated with one another; according to the utility model, the air source heat pump circulation system is utilized to preserve heat of meals; meanwhile, a good working environment is provided for workers; the heat preservation dining car system has the functions of heat preservation, cooling and dehumidification. Compared with a traditional heat preservation table, the heat preservation table is safer and more reliablein use process, low in o