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Cooling system combining natural cooling units and air-cooled water chilling units

An air-cooled chiller and natural cooling technology, applied in heating and ventilation control systems, heating and ventilation safety systems, air-conditioning systems, etc., can solve the problem of high consumption of fresh water resources for cooling tower spraying, corrosion of pipelines and equipment, and antifreeze Unsatisfactory effect and other problems, to achieve obvious energy saving effect, reduce the frequency of use, and good heat exchange effect

Active Publication Date: 2015-12-09
DALIAN GREEN INTEGRATED TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the northern region, since the lowest temperature at night in winter is -20~-30°C, and the temperature is even lower in extreme weather, antifreeze measures must be taken into account when using water-cooled cooling towers, and the antifreeze effect is generally not ideal. Adding high-concentration antifreeze to the cooling tower circulating water and pipelines will not only increase the investment of the owner but also cause corrosion to the pipelines and equipment
In addition, in water-scarce areas such as Northwest China, since the IDC air-conditioning system needs to run all year round, cooling tower spraying will consume a lot of fresh water resources. Regional promotion still has many concerns
Therefore, the natural cooling method of the water cooling system has its inherent deficiencies in cold regions and water-scarce regions.

Method used

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  • Cooling system combining natural cooling units and air-cooled water chilling units
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Examples

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Effect test

Embodiment 1

[0022] Used in IDC data center air conditioning water system. exist figure 1 In the cooling system flow chart of the combination of air-cooled natural cooling and water chillers shown, five natural cooling units 2 are juxtaposed (name: "A Natural Cooling Unit Applied to the Refrigeration System of Data Centers", Patent No.: 201520393433.8, The cooling capacity is 1400kw), and its water outlets are connected to the water inlet of air-cooled chiller 1 (name: screw air-cooled chiller, cooling capacity is 1400kw) through pipelines. It is connected to the water inlet side of the water supply ring pipe 19 of the primary side water system. The water outlet side of the water supply ring pipe of the primary side water system is connected to the primary side inlet of the heat exchanger 4 through a pipeline, and the primary side outlet of the heat exchanger is connected to the primary side circulation pump 6 through a pipeline, and the primary side circulation pump It is connected to t...

Embodiment 2

[0024] Used in IDC data center air conditioning water system. exist figure 2 In the cooling system flow chart showing the combination of air-cooled natural cooling and water chillers, five natural cooling units 2 (name: "A Natural Cooling Unit Applied to the Refrigeration System of Data Centers", Patent No.: 201520393433.8 Refrigeration The capacity is 1100kw, and each water outlet is connected to the water inlet of air-cooled chiller 1 (name: screw air-cooled chiller, cooling capacity is 1100kw) through pipelines. The water inlet side of the ring pipe 17 is connected. The water outlet side of the water supply ring pipe is connected with the water inlet of the terminal air conditioner 8 through a pipeline, and the water outlet of the end air conditioner is connected with the water inlet side of the return water ring pipe 18 through a pipeline, and the return water The water outlet side of the ring pipe is connected to the water inlets of the above-mentioned natural cooling u...

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Abstract

The invention discloses a cooling system combining natural cooling units and air-cooled water chilling units and applied to a data center computer room. According to the system, the natural cooling units and the air-cooled water chilling units are arranged independently and connected in series in the whole air-conditioning water system, and different operation modes are adopted to supply cold water meeting design parameter requirements to a tail-end air conditioning device at different outdoor temperatures. The system is mainly characterized in that when the outdoor temperature is lower in winter and transition seasons, the natural cooling units with low energy consumption, instead of the air-cooled water chilling units with high energy consumption, use outdoor natural cold sources to refrigerate the system, an energy-saving effect is realized, and the PUE (power usage effectiveness) value of a data center is reduced. Besides, the system adopts a closed circulating system, is not affected by the drift rate, consumes very little water, is suitable for a water-deficient area and has the water saving function, so that the system is convenient and reliable to operate, adopts intelligent control and is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a data center cooling system. Background technique [0002] With the continuous development of the Internet, the construction speed of data centers is astonishing, and the resulting huge power consumption has become an unavoidable problem in the development of data centers, which needs to be solved urgently. As a data center, the main energy consumption includes four parts: IT equipment energy consumption, UPS conversion energy consumption, refrigeration equipment energy consumption, lighting and fresh air system energy consumption. Among them, the energy consumption of refrigeration equipment accounts for 30% of the total energy consumption of the data center. [0003] In order to reduce the energy consumption of the data center, some experts and scholars put forward the concept of free cooling (FreeColling). At present, people in the industry are generally optimistic about the water-cooled air-conditioning system with high ...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F11/00F24F11/02
CPCF24F5/0046
Inventor 刘春德陈健
Owner DALIAN GREEN INTEGRATED TECH CO LTD
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