Refrigeration method of low temperature environment air conditioner

Abstract

The invention provides a refrigeration method of a low temperature environment air conditioner. When the air conditioner operates to refrigerate, the refrigeration method comprises the following steps of: step 1, reducing the topmost operating frequency of an outer door machine compressor in the air conditioner; step 2, adjusting the operating frequency of the compressor according to the temperature of a coil of an indoor machine evaporator in the air conditioner; and step 3, increasing the rotation speed of an inner fan of an indoor machine, and reducing the rotation speed of an outer door of an outdoor machine. The topmost operating frequency of the compressor is reduced, the compressor is frequently lifted frequency because of high frequency under the low temperature environment to be avoided, the frequency of the compressor is adjusted according to the temperature of the coil, and an evaporator is iced so that the compressor is stopped to be avoided; and the wind speed of the inner fan is increased, the evaporator and indoor heat transfer quantity is improved, the wind speed of the outer fan is reduced, the heat transfer quantity of a condenser is reduced, the air conditioner can normally refrigerate under the low temperature environment to be realized, and the refrigerating effect is optimized.

Description

technical field [0001] The invention relates to air-conditioning equipment, in particular to a refrigeration method for a low-temperature environment air conditioner. Background technique [0002] An air conditioner usually includes an indoor unit and an outdoor unit. The indoor unit is provided with an evaporator and an internal fan, and the outdoor unit is provided with a compressor, a condenser and an external fan. Usually, the commonly used air conditioner is only used when the external environment temperature is relatively high. When the outside temperature is lower than 28°C, the maximum operating frequency is set to avoid freezing of the evaporator of the indoor unit. For communication base stations, bars or dance halls and other enclosed spaces with high heat generation, the indoor temperature is still high when the outdoor temperature is low. At this time, the air conditioner is required to cool in a low temperature environment. During the cooling process, due to t...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide a refrigeration method for an air conditioner in a low temperature environment, to solve the defect that the air conditioner cannot be normally refrigerated in a low temperature environment in the prior art, and to realize the cooling of the air conditioner in a low temperature environment through the refrigeration method for an air conditioner in a low temperature environment. Normal cooling in the environment, optimizing the cooling effect

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