Machine hall air conditioner set

Abstract

The present invention discloses an air-conditioning unit for machine room, which comprises an indoor air-conditioner and a chiller unit. The chiller unit is connected with the indoor air-conditioner. Chiller water of the indoor air-conditioner is provided by the chilled unit which comprises a compressor, a condensing coil, an expansion valve and an evaporator that are sequentially, front and back connected. A centrifugal fan, a static pressure box and an air outlet of the indoor air-conditioner are sequentially connected. The air outlet is positioned under the indoor air-conditioner. An air return vent is positioned at top of the machine room. The chilled unit also comprises a heat exchanging disc of natural cooling and a tee regulating valve. One end of the heat exchanging disc of natural cooling is connected with a water return pipe of the chiller water of the air conditioning system, and the other end is sequentially connected with the tee regulating valve and an evaporator. The other end of the tee regulating valve is connected with a water return bypass pipe of the air conditioning system. The present invention can optimize the air flow and the distribution of the temperature inside the machine room so as to achieve the best effect of the heat exchanging, and saves the energy by the improvement of the difference between the air supplying temperature and the air returning temperature, and greatly improves the effect of energy-saving by adopting the technical proposal of natural cooling.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a machine room air conditioning unit. Background technique [0002] Because there are a lot of electronic equipment in the computer room, an air conditioning system is needed to cool it down. From the perspective of the development history of computer room air conditioners, the upward air supply system is the earliest airflow organization form used in the computer room. The cold air is sent downward from the air supply grille, or directly through the hood, but this method is only suitable for small spaces. computer room or for cold source backup. The high-speed and low-temperature cold air is directly sent to the high-temperature passage between rack rows, and is mixed with high-temperature gas to form a vortex to reduce the ambient temperature. In order to ensure that the low-temperature air supply can directly reach the ground and fully mix with the high-temperature air in the...

AI Technical Summary

Problems solved by technology

Because the hot air flow in the rack is mixed with the cold air flow next to it, the return air temperature of the air conditioner is lower than the maximum temperature inside the computer room, which does not meet the energy-saving requirements

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