Natural cooling energy-saving air conditioner and control method thereof

Abstract

The invention discloses a natural cooling energy-saving air conditioner and a control method thereof. The natural cooling energy-saving air conditioner comprises an indoor fan, an outdoor fan, and a compressor, a condenser, a throttler and an evaporator which are connected in turn to form an enclosed loop; an air bypass pipeline is connected between the inlet and the outlet of the compressor; the throttler is arranged between the condenser and the evaporator; a liquid bypass pipeline is connected between the inlet and the outlet of the throttler; the air bypass pipeline and the liquid bypass pipeline are respectively provided with a solenoid valve component which is connected in parallel with the compressor and the throttler; and a loop heat pipe LHP is formed between the evaporator and the condenser. The solenoid valve components are arranged, when the outdoor temperature is low, a natural cold source can be fully utilized to cool the indoor air through simple switching of the pipelines; therefore, the energy-saving effect is obvious, various problems and hidden troubles caused by low-temperature operation of a refrigeration system of the compressor and frequent start-stop of the compressor can be avoided, and the service life of the compressor can be effectively prolonged.

Description

technical field [0001] The invention relates to a natural cooling energy-saving air conditioner and a control method thereof. Background technique [0002] Since communication equipment is basically in a state of uninterrupted operation throughout the year and generates a lot of heat, air conditioners used in data centers, communication equipment rooms, communication base stations, etc. generally require year-round cooling operation, which consumes a lot of energy during operation, and the seasonal energy efficiency ratio Low. Moreover, since this type of air conditioner still needs to start the compressor refrigeration cycle in the cold winter, when the outdoor environment is too low, the compressor refrigeration system is prone to the problem of insufficient liquid supply caused by too low condensing pressure, and the heat load at this time is relatively high. If the compressor is small, it will also cause frequent start and stop of the compressor, which not only consumes...

AI Technical Summary

Problems solved by technology

However, this structure completely relies on the heat pipe heat exchanger for natural convection heat exchange, the heat exchange efficiency is very low, and it cannot meet the heat dissipation requirements in high temperature weather

Moreover, this equipment requires a large indoor and outdoor temperature difference to drive the heat absorption-exothermic cycle between the indoor heat exchanger and the outdoor heat exchanger, which is actually unable to operate normally most of the time.

The energy-saving effect of this structure is average and the reliability is not good. At the same time, the investment cost is high and the payback period is very long.

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