A control method for high temperature heating of a unitary air conditioner
A control method and air conditioner technology, which is applied to the control of high temperature heating of unitary air conditioners and the field of control of unitary air conditioners, and can solve the problems of inability to continue heating, increase of indoor fan shutdown or low wind operation time, and increase of condensation pressure. Advanced problems, to achieve the effect of reducing high-voltage protection shutdown problems, improving user experience, and simple control
Active Publication Date: 2021-02-02
NANJING TICA AIR CONDITIONING CO LTD
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Problems solved by technology
When the compressor starts heating, the indoor heat exchanger is at normal temperature. After the high-temperature and high-pressure refrigerant flows into the indoor heat exchanger, the temperature of the indoor heat exchanger detected by the temperature sensor will have a certain deviation due to the heat transfer rate of the heat exchanger. shift, so that the detected temperature of the indoor heat exchanger is lower than the actual condensing temperature, and the temperature detection shift will increase the time for the indoor fan to be turned off or the low-wind operation
However, if the indoor circulating air volume is too low, the condensing pressure will rise rapidly, causing the system pressure to exceed the limit of the air conditioning system, triggering the action of the high-voltage protection switch, and turning off the compressor, resulting in the inability to continue heating
Method used
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[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0036] like figure 1 shown.
[0037] A unitary air conditioner includes a refrigerant circulation circuit composed of a compressor 1 , a four-way valve 2 , an outdoor heat exchanger 3 , a throttling component 4 , an indoor heat exchanger 6 and a gas-liquid separator 7 . The outdoor heat exchanger 3 is provided with an outdoor fan 11 . The indoor heat exchanger 6 is provided with an indoor fan 10 . Two ends of the indoor heat exchanger 6 are respectively provided with a stop valve 5 . An outdoor temperature sensor 8 is arranged beside the outdoor heat exchanger 3, capable of detecting the outdoor ambient temperature TOd. The middle plate of the indoor heat exchanger 6 is provided with an indoor temperature sensor 9 capable of detecting the temperature TI of the indoor heat exchanger.
[0038] The operation process of the air conditioner is as follow...
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The invention relates to a high-temperature heating control method for a unitary air conditioner, which includes a refrigerant circulation circuit composed of a compressor, a four-way valve, an outdoor heat exchanger, a throttling component, an indoor heat exchanger and a gas-liquid separator. An outdoor temperature sensor is provided next to the outdoor heat exchanger; an indoor temperature sensor is provided on the middle plate of the indoor heat exchanger, which can control the speed of the outdoor fan and the indoor fan by detecting the outdoor temperature and the temperature of the indoor heat exchanger. , so that when the air conditioner is heating, it can reduce the problem of high-voltage protection shutdown caused by high ambient temperature operation, improve the application range of the air conditioner, and improve user experience.
Description
technical field [0001] The invention relates to a control method of an air conditioning system, in particular to a control method of a unitary air conditioner, in particular to a control method for high temperature heating of a unitary air conditioner. Background technique [0002] With the improvement of living standards, more and more places need air conditioners for comfort adjustment, such as swimming pools, bathrooms and other places that require high temperature heating. The natural evaporation of water in this place takes away a lot of heat, making the indoor temperature higher than the outdoor temperature. The temperature is low, and at the same time, the human body will feel cold if there are too few clothes and the heat absorbed by the evaporation of water, so it is necessary to use air conditioning to adjust the temperature. [0003] According to the law of energy conservation, it can be known that Q releases heat = W work + Q absorbs heat, so Q releases heat >...
Claims
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IPC IPC(8): F25B13/00F24F11/30
CPCF25B13/00F25B2313/0293F25B2313/0294F25B2313/0314F25B2313/0315F24F11/30
Inventor 谭秋晖杨亚华徐来福
Owner NANJING TICA AIR CONDITIONING CO LTD