Multi-source switchable one-machine four-state intelligent air conditioner hot water system and control method

The multi-source switchable one-unit four-state intelligent air conditioning and hot water system realizes the automatic switching of multiple modes of air conditioning and hot water systems and the refined management of energy. It solves the problems of low heat exchange efficiency and low intelligence in extreme weather conditions in existing technologies, and improves the system's operating efficiency and comfort under all working conditions.

CN122258518APending Publication Date: 2026-06-23JIANGSU URBAN & RURAL CONSTR VOCATIONAL COLLEGE
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Patent Information

Application Number
CN202610484599.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-14
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing air source heat pump air conditioning and hot water systems suffer from low heat exchange efficiency, reduced energy efficiency ratio, inability to flexibly switch operating modes, and low level of intelligence under extreme weather conditions, resulting in low energy utilization and poor comfort.

Method used

The system adopts a multi-source switchable four-state intelligent air conditioning and hot water system, which integrates a condensing unit, an evaporating unit, a compressor, a gas-liquid separator and an intelligent controller. Through the combined control of solenoid valves and circulating pumps, it realizes four modes: air conditioning cooling and hot water heating, air conditioning heating and chilled water preparation, preparation of chilled and hot water and air conditioning operation alone. Combined with the dual heat source heat sink of air and water, it realizes refined energy management and automated switching.

Benefits of technology

Maintain efficient operation under extreme climates, reduce operating costs, improve system robustness and energy efficiency, meet all-season and full-function requirements, and reduce installation space and equipment costs.

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Abstract

The invention provides a multi-source switchable one-machine four-state intelligent air conditioner hot water system and a control method, and relates to the technical field of heat pump air conditioner hot water systems. The system comprises an integrated heat exchange main machine, a hot water tank, a cold water tank and an intelligent controller assembly, the integrated heat exchange main machine integrates a condensation unit, an evaporation unit, a compressor, a throttling device and other core components, and through the on-off combination of four electromagnetic valves and the start-stop control of a circulating pump and a draught fan, the heat exchange efficiency is improved. Switching of four working modes of air conditioner refrigeration and hot water preparation, air conditioner heating and cold water preparation, cold and hot water preparation and air conditioner independent operation is achieved; the intelligent controller automatically controls the state of each component according to a preset logic based on a temperature signal collected by the sensor and a user instruction, and can also adjust the power of the inverter compressor and the opening degree of the electronic expansion valve. The problems that a traditional system is single in heat source and rigid in energy utilization are solved, wide-working-condition efficient operation is achieved, the energy utilization rate is increased, and the diversified use requirements of users are met.
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