- Data center temperature control_Haiwu official website

Haiwu in Action: A Comprehensive Guide to the Renovation of Data Room Water Supply and Drainage and Fire Protection System (2)

Publication Date:2024-10-21

Share to

Section 5 Setting of Demineralized Water Treatment Equipment and Dementified Water Tank

1. When renovating the computer room, the water storage capacity needs to be considered. According to Article 12.1.4 of the GB50174-2017 Data Center Design Code, Class A data centers can store water for 12 hours. Retrofit projects can be determined based on factors such as data center criticality levels and site constraints.

2. When renovating the computer room, it is necessary to choose a reasonable water treatment process according to the water quality conditions of the water source. The water quality of indirect evaporative cooling and air conditioning equipment shall meet the provisions of Article 4.4 of GB/T 29044-2012 of "Water Quality of Heating and Air Conditioning Systems". Specific manufacturers may have different water quality requirements, but they should be higher than the specification requirements. Taking Haiwu products as an example, the water quality indicators that need to be met for the water replenishment of Haiwu AHU indirect evaporative cooling energy-saving unit are as follows:

3. When using municipal tap water supply and AHU indirect evaporation cooling air conditioning equipment for cooling, then it is necessary to consider softening treatment equipment and softening the water tank. It needs to be equipped with a separate equipment room, and it is not recommended to put it outdoors (there is a problem of anti-freezing in the north, and there is a problem of heat pollution in the south). Try to find an existing free room on the ground as a computer room, the above-ground space is really limited, you can consider outdoors as a basement.

Taking the actual project as an example, the outdoor underground storage volume of 450m³ of water is compared as follows:

4. Supplementary key matters:

1) In addition to meeting the amount and head of water replenishment, the water replenishment equipment should also consider the safety of water replenishment. The water replenishment equipment should be considered as a backup, and the water refill equipment should be able to absorb water from the two replenishment tanks separately, and the equipment outlet pipe should be arranged in a ring.

2) When municipal reclaimed water is used as the supplementary water source, the municipal reclaimed water should adopt a deep treatment process. After clarifying the water quality requirements for replenishment, the municipal reclaimed water treatment process depends on the municipal reclaimed water quality. The municipal reclaimed water quality is different, and the treatment process is different. If only the organic indicators of municipal reclaimed water exceed the standard, the treatment process is: raw water → conditioning tank→ booster pump→ ozone reaction tank→ activated carbon filter tank→ disinfection → clean water pool. If there are inorganic salt indicators such as hardness and conductivity that exceed the standard, the water ion exchange process and the double-membrane process (ultrafiltration (UF) + reverse osmosis (RO)) should be used to meet the requirements of reducing hardness and desalination, so that the effluent quality can meet the design indicators.

3) Key equipment such as softening unit and desalting double-membrane process unit should be configured for one use and one standby. The whole process system is equipped with online monitoring equipment for water quality, which monitors the COD, PH, hardness and conductivity of the effluent online.

prev:Haiwu in Action: A Comprehensive Guide to the Renovation of Data Room Water Supply and Drainage and Fire Protection System (3) next:Haiwu in Action: A Comprehensive Guide to the Renovation of Water Supply and Drainage and Fire Protection Systems in Data Rooms (1)

Back to the list

Related Newsmore