Energy-saving air conditioning device

Abstract

The invention discloses an energy-saving air conditioning device, which comprises an indoor unit and an outdoor unit which are connected through a pipeline, wherein the indoor unit comprises at least one cooling back plate arranged at an air outlet side of a server rack, the outdoor unit consists of an air cooling heat exchanger and a chilled water heat exchanger which are connected in parallel, and air inlet ends of the air cooling heat exchanger and the chilled water heat exchanger are respectively provided with a solenoid valve. In the device, refrigerants and a thermosyphon principle are used so as to provide cooling for the server rack nearby, the heat dissipation problem of the server rack is solved, a natural cold source or a cold water machine set can be selected to use according to changes of weather, the energy consumption is greatly saved, and the operation cost is reduced.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an energy-saving air conditioner for server rack cooling. Background technique [0002] With the increase of data center machines, their heat density is increasing year by year. The heat density of new rack servers and blade servers used in data centers has reached 20-30kW / cabinet. It is difficult for the commonly used air conditioning system to meet such high heat density. The cooling requirements of the computer room. Some existing computer rooms adopt chilled water backplane cooling technology, that is, a backplane is installed near the air outlet side of the service rack. The backplane adopts a coil heat exchanger, and the cooling medium is low-temperature chilled water. This chilled water backplane technology has the following disadvantages: [0003] 1. There is a risk of accidental water leakage. The water-cooled backplane brings water into the vicinity of the server rack. Once an e...

AI Technical Summary

Problems solved by technology

The water-cooled backplane brings water into the vicinity of the server rack. Once an earthquake or other accidents cause water leakage, the consequences will be very serious;

[0004] 2. prone to condensation

[0005] 3. There is a risk of water hammer

Failure of any one of these valves to work properly may cause water hammer throughout the system, resulting in damage to the cooling system;

[0006] 4. Water quality is easy to deteriorate

There are many factors that affect water quality, including the presence of suspended solids, bacterial contamination, and inappropriate pH values. Deterioration of water quality will lead to reduced heat dissipation and equipment failure

Images