Full-load air conditioner device and control method thereof

Abstract

The embodiment of the invention discloses a full-load air conditioner device and a control method of the full-load air conditioner device. The air conditioner device comprises a condenser, an invertercompressor, a condensing fan, an evaporator, an evaporation fan, a throttling electronic expansion valve, an air suction temperature sensor, a pressure sensor, a bypass electronic expansion valve andan air conditioner controller. The two ends of the bypass electronic expansion valve are connected between the condenser and the inverter compressor and between the evaporator and the electronic expansion valve correspondingly through pipelines, and the air conditioner controller is electrically connected with the inverter compressor, the throttling electronic expansion valve, the condensing fan,the evaporation fan, the pressure sensor, the air suction temperature sensor and the bypass electronic expansion valve. The problem of adjustment of the precise air conditioner refrigeration low loadis solved by adjusting the refrigerant flow in the bypass electronic expansion valve, therefore precise air conditioner refrigeration load adjustment is lowered to 0% from 100%, electrical heating does not need to serve as thermal compensation, the energy saving effect is good, and the machine room temperature adjustment is stable.

Description

Technical field [0001] The present invention relates to the field of air conditioning technology, in particular to a full-load air conditioning device and a control method thereof. Background technique [0002] Small and medium-sized data centers have the characteristics of large load changes and the need for expansion from small to large. This means that precision air conditioners for small and medium-sized data centers need to have both energy saving and cooling load adjustment ranges. [0003] At present, the commonly used load regulation refrigeration methods are precision air conditioners that use only inverter compressors. The disadvantage is that inverter compressor load regulation is subject to system oil return. At low frequencies, oil return will be difficult, and the frequency has minimum restrictions. Most of them have inverter compressors The refrigeration system cannot achieve cooling load regulation below 30%. When the load of the computer room is less than 30%, this...

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Problems solved by technology

Through the "heat compensation" of electric heating, although the cooling load adjustment problem of less than 30% is solved, the energy saving is poor due to the power consumption of electric heating and heating; and the temperature of the equipment room fluctuates greatly when the electric heating is turned on and off

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