Multi-online refrigerant adjusting device and system, control method thereof and air conditioner

An adjustment device and adjustment system technology, which is applied in the direction of air conditioning system, heating and ventilation control system, heating and ventilation safety system, etc., can solve the problem that the multi-connected system cannot effectively and real-time adjust the amount of refrigerant, so as to avoid excessive refrigerant Or the lack of refrigerant, the effect of ensuring comfort and improving comfort

Active Publication Date: 2020-04-17
NINGBO AUX ELECTRIC
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  • Abstract
  • Description
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Problems solved by technology

[0005] The present invention solves the problem that the existing multi-connected system cannot effectively and real-time adjust the amount of refrigerant

Method used

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  • Multi-online refrigerant adjusting device and system, control method thereof and air conditioner
  • Multi-online refrigerant adjusting device and system, control method thereof and air conditioner
  • Multi-online refrigerant adjusting device and system, control method thereof and air conditioner

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Embodiment Construction

[0066] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0067] In the prior art, the existing multi-split system injects refrigerant according to 100% of the load demand before leaving the factory, but in the actual operation process, the amount of refrigerant cannot be adjusted effectively and in real time. During actual operation, on the one hand, the actual amount of circulating refrigerant is greater than the required amount of refrigerant. At this time, excessive refrigerant will lead to abnormal phenomena such as high system pressure and fluid backflow; When the amount of circulating refrigerant is less than the required amount of refrigerant, insufficient refrigerant will lead to abnormal phenomena such as insufficient system operation and poor temperature adjustment effect. Excessive or...

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Abstract

The invention provides a multi-online refrigerant adjusting device and system, a control method thereof and an air conditioner, and relates to the technical field of air conditioners. The method comprises the following steps that first external command signals, a system high-voltage corresponding saturation temperature, an ambient temperature and an outdoor machine liquid pipe temperature are acquired; according to the first external command signals, the system high-voltage corresponding saturation temperature, the ambient temperature and the outdoor machine liquid pipe temperature, whether arefrigerant adjustment preset condition is met or not is judged; and if the refrigerant adjustment preset condition is met, opening and closing of a first control valve group and a second control valve group are controlled to regulate the refrigerant amount of the multi-online system. According to the multi-online refrigerant adjusting device and system and the method, the adjusting device with gas-liquid separation and liquid storage functions is arranged in the multi-online system, the opening and closing of a plurality of control valves in the adjusting device are controlled, the storage and discharging of refrigerant are realized, the refrigerant state is monitored in real time, so that the refrigerant is always maintained in a reasonable range, it is ensured that the system can work normally under various loads, and the use comfort of a user is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a multi-connected refrigerant adjustment device, system and control method thereof, and an air conditioner. Background technique [0002] At present, multi-connected systems are widely used in public places such as large enterprises and large shopping malls, and play an important role in the temperature adjustment process of large-scale occasions. Generally, multi-connected systems are connected to multiple indoor units, and use refrigerant circulation to make multiple indoor units The machine can cool or heat at the same time. [0003] During the operation of the multi-connected system, as the number of indoor units turned on and the operating load change, the amount of refrigerant required for system circulation will also change accordingly. However, generally before the factory leaves the factory, the merchant will add the amount of refrigerant to the unit of the exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/0003F24F11/32F24F11/64F24F11/84F24F11/88F24F110/12F24F140/20
CPCF24F1/0003F24F11/32F24F11/64F24F11/84F24F11/88F24F2110/12F24F2140/20
Inventor 任小辉陈东张坤坤
Owner NINGBO AUX ELECTRIC
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