Combination method and device of two-stage compression heat pump air conditioner and refrigerator system

Abstract

The invention provides an assembly method of a two-stage compression heat pump air-conditioning and refrigerator system and a device used the method. The method is characterized in that a split-type air-conditioning outdoor system and a split-type refrigerator outdoor system are assembled together; the compressors of two different pressure levels of the same unit are used; the adjustment of the air and the refrigeration of the refrigeration are realized through the serial and parallel arrangement of the cooling pipeline, the control of the control valves, and the auxiliary function of the intermediate heat exchanger cold / heat exchange system; as the air-conditioning refrigerant cycling circuit and the refrigerator refrigerant cycling circuit arranged in parallel supply heat energy to the rooms and supply cold energy to the refrigerator when operating in opposite directions; the air-conditioning refrigerant cycling circuit and the refrigerator refrigerant cycling circuit supply cold energy to both the room and the refrigerator when arranged both in series and in parallel and operating in collaboration. The invention realizes the transfer between different work modes of the system through changing the cycling direction of the refrigerant of the system and the allocation of flow of the refrigerant. The different types of energy utilize each other, and the energy-saving and noise-reducing effects are obvious. The indoor machine can be arranged in an embedded type, which saves space and is beneficial for the beautification of the environment. The device is widely applicable to locations such as households, villas, hotels and motels, etc.

Description

technical field [0001] The invention relates to a composite system that integrates the split heat pump air conditioning system and the refrigerator system, which can provide room cooling and heat while realizing refrigerator refrigeration. Demand for cooling, heating in winter and refrigerator cooling throughout the year. The system is based on the principle of two-stage compression cycle refrigeration. Background technique [0002] Split-type heat pump air conditioners are increasingly favored by users for their beautiful appearance, various styles, small footprint, low noise, and flexible use. Split-type air conditioners have flexible installation positions for indoor units, and can be supported by one outdoor unit to support multiple indoor units. There are many advantages such as unrestricted external dimensions and convenient installation and maintenance; however, the energy consumption problem of air conditioners is more obvious. With the improvement of users' require...

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Problems solved by technology

[0002] Split-type heat pump air conditioners are increasingly favored by users because of their beautiful appearance, many styles, small footprint, low noise, and flexible use. Split-type air conditioners have flexible installation positions for indoor units, and can be supported by one outdoor unit to support multiple indoor units. There are many advantages such as unrestricted external dimensions and convenient installation and maintenance; however, the problem of energy consumption of air conditioners is more obvious. With the improvement of users' requirements for quality of life, homes, hotels, hotels, villas and other places need to install air conditioners at the same time. There are heat pump air-conditioning systems and refrigerators, which generally require the installation of heat pump air-conditioning and refrigerator systems at the same time, which leads to more units, large investment, high energy consumption of consumables, and waste of resources; especially the heat of the condenser of the refrigerator system cannot be effectively used. Under the condition of lower evaporating temperature, the pressure ratio of the compressor increases, especially the power consumption and energy waste

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