Air conditioning system for computer room

Abstract

The invention discloses an air conditioning system for a computer room. The air conditioning system for the computer room comprises an indoor unit and an outdoor unit set placed outside the computer room. The indoor unit is placed in a cabinet chamber and comprises a machine shell. The machine shell comprises a front door plate and a rear door plate, an upper plate and a lower plate, a left side plate and a right side plate which are arranged oppositely respectively. The rear door plate is provided with an air inlet. The front door plate is provided with an air outlet. The indoor unit further comprises a heat exchanger and cross-flow blowers. The heat exchanger is arranged in the machine shell. The cross-flow blowers are located on the side close to the front door plate. The cross-flow blowers comprise cross-flow fans, driving motors, volutes and volute tongues. The driving motors drive the cross-flow fans. Air passages are formed by the volutes and the volute tongues. The driving motors are installed on the upper plate and/or the lower plate. The volutes and the volute tongues are installed on the machine shell. According to the air conditioning system for the computer room, the technical problems that an existing air conditioning system for a computer room is too high in energy consumption and big in noise are solved. The air conditioning system for the computer room is specifically suitable for various large-scale data computer rooms.

Description

technical field [0001] The invention belongs to the field of refrigeration systems, in particular to an air-conditioning system for a machine room. Background technique [0002] With the high development of communication technology, there are more and more needs to build computer rooms for various data centers. The computer room air conditioning system is the key to the design of the computer room, mainly to cool the heat of various equipment and maintain the constant temperature of the computer room. The computer room air conditioning system has the following characteristics due to its application environment: [0003] 1. Continuous refrigeration [0004] Since the data room generates a lot of heat, and some IDC rooms have a heat generation of more than 30kw / ㎡, so the energy-saving machine room air conditioner is used for cooling all year round. [0005] 2. High sensible heat ratio [0006] The sensible heat ratio is the ratio of the sensible cooling capacity to the tot...

AI Technical Summary

Problems solved by technology

[0005] 2. High sensible heat ratio

[0012] Among the existing air-conditioning systems for inter-row computer rooms, for example, the Chinese patent CN204202069U discloses an inter-row air-conditioning system using a centrifugal fan. The air-conditioning system uses a centrifugal fan as the air supply unit. The equipment for sending gas, according to the principle of converting kinetic energy into potential energy, uses the high-speed rotating impeller to accelerate the gas, then decelerates, changes the flow direction, and converts kinetic energy into potential energy (pressure). Compared with the domestic cross-flow fan, the power consumption of the fan is High, poor energy efficiency ratio; because the fan boosts the air supply through the wind pressure, the fan power is large, and the fan noise is relatively large; the manufacturing process of the centrifugal fan is complicated and the cost is high; the air inlet of the centrifugal fan is small, the wind pressure is large, and the wind speed is high. The wind speed passing through the evaporator is not uniform, resulting in a decrease in the heat exchange efficiency of the evaporator, a decrease in the overall capacity, and a decrease in the energy efficiency ratio; in addition, due to the size limitation of the air conditioner, the air conditioner system needs to be equipped with several centrifugal fans for air supply, resulting in a decrease in the overall energy efficiency. Higher power consumption, higher fan unit cost

According to relevant statistical data, the cooling power consumption of the existing computer room accounts for as high as 35%-45% of the overall power consumption of the computer room, which does not meet the current energy-saving and environmental protection requirements advocated by the state.

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