A kind of air conditioner and control method for preventing liquid hammer

A control method and technology of an air conditioner, applied in the field of air conditioning

Active Publication Date: 2021-04-06
NINGBO AUX ELECTRIC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot fundamentally solve the problem of liquid hammer damage to the compressor

Method used

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  • A kind of air conditioner and control method for preventing liquid hammer

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Embodiment Construction

[0014] 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.

[0015] The air conditioner includes an indoor unit, an outdoor unit, a valve 3 and a compressor 4, and the indoor unit includes a first indoor unit heat exchanger 11, a second indoor unit heat exchanger 12, an indoor fan 13, an indoor electromechanical heater 14, and an inner panel temperature sensor The device 15, the inner ring temperature sensing device 16, the outdoor unit includes an outdoor unit heat exchanger 21, an outdoor fan 22, an outer disk temperature sensing device 23, and an outer ring temperature sensing device 24.

[0016] The air conditioner also includes a throttling device and a plurality of two-way valves, and the series-parallel connection of the first indoor unit heat exchanger 11 and the second indoor unit heat excha...

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Abstract

The invention provides an air conditioner and a control method for preventing liquid shock, including an indoor unit and an outdoor unit. The indoor unit includes a first indoor unit heat exchanger, a second indoor unit heat exchanger and a plurality of two-way valves. The on and off state of the two-way valve changes the series-parallel state of the first indoor unit heat exchanger and the second indoor unit heat exchanger, thereby changing the flow of the refrigerant in the air conditioner and ensuring that the refrigeration is not under low load conditions. There will be a problem of suction with liquid to avoid liquid shock.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioner and a control method for preventing liquid shock. Background technique [0002] When the air conditioner has a low cooling load and a low load, the compressor is likely to bring in liquid when it inhales air, resulting in liquid shock, which will seriously affect the reliability of the compressor. At present, in conventional refrigeration and air conditioners, when the suction superheat is insufficient and liquid shock may occur, the method of dissecting the long-term running compressor is used to assist in judging the reliability of the compressor. This method cannot fundamentally solve the problem of liquid hammer damage to the compressor. Contents of the invention [0003] The problem solved by the invention is to ensure that there will be no problem of suction with liquid under low refrigeration load conditions by adjusting the flow of refrigera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/89F24F11/64F25B41/40F25B41/20F25B39/00F25B49/02
CPCF24F11/89F24F11/64F25B41/00F25B39/00F25B49/02F25B41/20
Inventor 汪云霞曾友坚
Owner NINGBO AUX ELECTRIC
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