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Refrigerating system with continuous heating function and defrosting control method

A refrigeration system and control method technology, which is applied to heating methods, air conditioning systems, household heating, etc., can solve problems such as stopping heating, and achieve the effects of avoiding fluctuations, ensuring user comfort, and optimizing user experience

Active Publication Date: 2019-06-28
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defect in the prior art that the indoor unit stops heating when defrosting the multi-connected unit, the present invention proposes a refrigeration system capable of continuous heating and a defrosting control method

Method used

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  • Refrigerating system with continuous heating function and defrosting control method

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Embodiment Construction

[0018] The invention proposes a refrigeration system, which includes a multi-connected unit, which includes a controller, a plurality of parallel outdoor units and indoor units, each outdoor unit is provided with a pipe connected to the outlet of the four-way valve heating mode Flow regulating device 1, the flow regulating device 1 is a flow control valve. When the system needs to perform defrosting operation, the controller controls an outdoor unit that needs defrosting to switch from heating operation to cooling operation for defrosting operation, so that the high temperature refrigerant The outdoor heat exchanger of this outdoor unit performs defrosting, and the other outdoor units maintain heating operation, and the controller controls the flow adjustment device 1 on the outdoor unit in defrosting operation at the same time, and the flow adjustment device 1 reduces the heating mode with the four-way valve. The refrigerant throughput of the pipes connected to the outlet prev...

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Abstract

The invention discloses a refrigerating system with a continuous heating function and a defrosting control method. The refrigerating system comprises a multi-connected unit formed by connecting multiple outdoor units in parallel. A flow adjusting device is arranged on a pipeline, communicating with a heating mode outlet of a four-way valve, in each outdoor unit, when the system needs to carry outdefrosting operation, one outdoor unit is controlled to carry out defrosting operation, and the other outdoor units are kept under heating operation. The heating modes of indoor units can be kept during defrosting of the outdoor units, fluctuation of the indoor environment temperature is avoided, the use comfort of a user is guaranteed, the optimum use experience is brought for the user, and the problem that the indoor units stop heating during defrosting operation of the multi-connected unit is solved.

Description

technical field [0001] The invention relates to the field of air conditioning systems, in particular to a refrigeration system capable of continuous heating and a defrosting control method. Background technique [0002] Air source heat pumps are increasingly widely used in small and medium-sized buildings and some public buildings, and have become one of the most active forms of central air-conditioning systems; when the unit is in heating operation, the outdoor heat exchanger acts as an evaporator, and its temperature is relatively low , when the temperature is below zero and the outdoor environment has a certain humidity, frosting may occur on the outdoor heat exchanger; frosting on the outdoor heat exchanger will cause the heat transfer performance of the heat exchanger to deteriorate and the air circulation to be blocked , the heating capacity of the unit becomes poor, and in serious cases, there will be no heating effect or even cold air; this will lead to poor user exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/06F24F11/89F24F11/42
CPCF24F3/06F24F11/42F24F11/89
Inventor 张仕强武连发李立民冯涛朱世强
Owner GREE ELECTRIC APPLIANCES INC
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