4results about How to "Improve heating energy efficiency" patented technology

The utility model relates to a kind of PV / T phase change energy storage water source heat pump heating system, including heat collection circulation loop, heat transfer circulation loop, heating circulation loop;Heat collection circulation loop includes cyclically communicated PV / T photovoltaic photo-thermal plate and phase change water tank;Heat transfer circulation loop includes cyclically communicated phase change water tank and double-source heat pump;Heating circulation loop includes cyclically communicated double-source heat pump and fan-coil unit.Wherein, phase change water tank includes shell, and the first spiral pipe heat exchanger and second spiral pipe heat exchanger of shell inside being set;First spiral pipe heat exchanger is connected with PV / T photovoltaic photo-thermal plate closed loop, and second spiral pipe heat exchanger is connected with double-source heat pump closed loop.Compared with prior art, the PV / T photovoltaic photo-thermal plate of the utility model system is collected solar heat while generating electricity, and the electric energy generated can drive heat pump to operate, and heat energy is used for auxiliary heating or storage;Heat pump utilizes double-source to improve heating energy efficiency, and phase change energy storage reduces energy loss.

The invention discloses a vehicle thermal management system and a control method thereof, a vehicle and a storage medium, and relates to the technical field of vehicles, the vehicle thermal management system comprises an electric drive water way, a coupling water way system and a heat pump system, and the heat pump system comprises a refrigerant loop and an air conditioner water way; the refrigerant loop and the air-conditioning waterway are respectively provided with a cabin heat exchanger, and the refrigerant loop is in heat exchange connection with a battery; the coupling water path system comprises an engine water path, a heat exchange water path and an air conditioner water path which are connected with one another, and the heat exchange water path, the electric drive water path and the refrigerant loop are all in heat exchange connection through a heat exchange device. The invention aims to improve the heating energy efficiency of the vehicle.

The application relates to the technical field of heat pumps, and particularly discloses a water pan anti-freezing device, a water pan anti-freezing method and a heat pump system. The device comprises a first heat exchange assembly, a second heat exchange assembly, a first distributor and a second distributor. The first heat exchange assembly comprises a first heat pipe condenser, a first refrigerant input pipeline, a first heat pipe evaporator and a first refrigerant output pipeline. The first heat pipe condenser is used for heat exchange connection with a first water pan, and the first heat pipe evaporator is used for heat exchange connection with a first control mainboard. The second heat exchange assembly comprises a second heat pipe condenser, a second refrigerant input pipeline, a second heat pipe evaporator and a second refrigerant output pipeline. The second heat pipe condenser is used for heat exchange connection with a second water pan, and the second heat pipe evaporator is used for heat exchange connection with a second control mainboard. The first distributor is used for distributing the flow of refrigerant medium to the first heat pipe condenser and the second heat pipe condenser. The second distributor is used for distributing the flow of refrigerant medium to the first heat pipe evaporator and the second heat pipe evaporator. The water pan anti-freezing device has good anti-freezing effect on the water pan and is energy-saving and environment-friendly.

The invention relates to the technical field of casting machines, in particular to a casting machine head heating device which comprises a heat preservation shell, the heat preservation shell is used for wrapping the periphery of a casting machine head, a plurality of heating rods are arranged in the heat preservation shell and used for heating the casting machine head, and a supporting assembly is arranged in the heat preservation shell and used for supporting the casting machine head. The supporting assembly is used for supporting the multiple heating rods, so that the heat preservation shell can be evenly distributed when installed on the periphery of the machine head of the casting machine, heating dead corners and temperature differences caused by asynchronous installation of a traditional device are reduced, it is ensured that the overall temperature of the machine head is balanced, the problems that due to local cooling, fluidity of materials becomes poor, and solidification and blockage occur are solved, and the casting quality is improved.