Multi-split air source double-tail-end system of wall-mounting type duplex metal radiant panels

Abstract

The invention discloses a multi-split air source double-tail-end system of wall-mounting type duplex metal radiant panels. The multi-split air source double-tail-end system comprises a controller connected with a heat pump outdoor unit and multiple air conditioner indoor units arranged in multiple rooms, and each room is internally provided with one wall-mounting type duplex metal radiant panel; each wall-mounting type duplex metal radiant panel comprises a duplex metal radiant panel body directly wrapping a refrigerating fluid heating pipe, the outer surface of the wall-mounting type duplex metal radiant panel is coated with an infrared radiation ceramic coating, the heat transferring effect of a condenser pipe is improved, and the effect of protecting the pipe is achieved; and the wall-mounting type duplex metal radiant panels and the air conditioner indoor units are connected in parallel through adjusting control valves and splitters, the switching states of the adjusting control valves and the splitters are controlled, and refrigeration in summer and heating and defrosting in winter can be achieved. When the multi-split air source double-tail-end system is used for heating, the indoor temperature field is evenly distributed, the heat pump condensing temperature is further reduced, the COP of the air source heat pump is improved, and energy saving and emission reduction are achieved.

Description

technical field [0001] The present invention relates to an air-source heat pump air-conditioning system, in particular to a double-end system with multiple air sources, which uses a wall-mounted bimetal bimetal radiant plate as a heating device and a household air conditioner indoor unit as a cooling device. Background technique [0002] Coal-fired boiler heating in winter is considered to be one of the "culprits" of air pollution, especially for areas without centralized heating, and the quality of fossil energy burned by the people is even more uneven. In order to treat both symptoms and root causes, improve air quality, and reduce smoke and dust emissions, the state has proposed a plan to gradually replace the original decentralized combustion of fossil energy with electric heating equipment for non-centralized heating areas in the north, so as to reduce environmental pollution caused by scattered coal combustion. Among the existing electric heating facilities, the use of...

AI Technical Summary

Problems solved by technology

[0003] Traditional air-source heat pump cooling and heating both use air-conditioning indoor units as the end of heat exchange. In summer, using air-conditioning indoor units has a better cooling effect, but using indoor units for heating in winter tends to cause higher temperature fields in indoor high places, and the temperature within the range of human activities. Low uneven distribution, and due to the high temperature of the air supply, it is easy to produce a strong blowing feeling, which seriously affects people's thermal comfort

In order to solve this problem and improve comfort, the air source heat pump hot water system came into being, which provides indoor heating in winter in the form of thermal radiation, but this system needs to perform secondary heat exchange between the refrigerant and water, which will cause a certain amount of heat It is not only a waste of energy, but the equipment is relatively complicated, and the initial investment and operating costs are high, so it is not suitable for general residential buildings, and it cannot take into account the demand for indoor cooling in summer

In addition, in areas with low outdoor temperature and high relative humidity, the above two systems will also cause frost on the surface of the air source heat pump evaporator to reduce the operating efficiency of the system.

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