First of all, what is the relationship between the failure rate and the environment of this data center machine room?
(1) a is associated and dust content, a computer room to ask for a cleanliness so to say let's national standard is now greater than or equal to 0.5 micron dust, every to rise not to more than eighteen thousand kilograms, if into English, is English level five hundred thousand such standard, cleanliness requirements so strict, need to reduce the machine clapping rate, reduce the corrosion causes of and so on.
(2) there is also a corrosive gas, which includes sulfide, nitrogen oxides, nitrogen sulfide and other corrosive gases.
(3) if the dust content is higher or corrosive gas content is higher, including coastal salt composition in the air, or both on the high side, in this case, if the humidity is high, so the failure rate is relatively high.
Details: what are the strict environmental requirements of the data center machine room?2
What are the strict environmental requirements of a data center?
(1) static electricity: the electrostatic potential of the insulator in the main machine room should not be greater than the electrostatic leakage resistance on the ground of the lkV machine room and the electrostatic potential of the insulator should also meet relevant regulations.
(2) noise: when the computer system is down, the noise in the machine room should be less than 6SdB(A) at the center of the main machine room.
(3) illumination: the computer room is 0.8m away from the ground, and the illumination should not be lower than 3001x, and the illumination of the auxiliary room should not be lower than 2001x.
(4) radio interference field intensity: no more than 126dB at a frequency of 0.15~1000MHz.
(5) magnetic field interference: the field intensity of magnetic field interference shall not exceed 800A/m, and shall also be set according to the specified size.
(6) floor vibration acceleration value: the vertical and horizontal vibration acceleration value of the floor surface of the main machine room should not be greater than 5OOmm/s when the computer system is down.
Details: what are the strict environmental requirements of the data center machine room?3
(7) temperature and humidity: temperature and humidity must be strictly controlled to provide a continuous operating temperature and humidity range.
Dry bulb thermometer: 20 ℃ to 25 ℃ (68 f and 68 f).
Relative humidity: 40%~50%.
Biggest dew point: 2 ℃ l (69.8 ℉).
Biggest change speed: 5 ℃ (9 ℉).
(8) resistance: the electrostatic leakage resistance on the ground and working table of the main machine room shall comply with the current national standard of ge6650-1986 "technical conditions of movable floor for computer room".
(9) pollutants: away from corrosive gases, inflammable and explosive substances;After corrosion gas with air suction machine room will do harm to computer equipment and personnel health, and unclean air can cause adverse absence made for the operation of the computer equipment, also inside the computer room precision air conditioning, contamination on the screen of the new fan, etc.
Details: what are the strict environmental requirements of the data center machine room?4
What are the requirements of the environment parameters of the data center machine room for precision air conditioning?
Data center equipment heat dissipation is great, for the sake of the stability of temperature in the room will have a refrigeration system, main is to immersion cooling heat source and direct surface system, can achieve the goal of saving energy security refrigeration.
1. Continuous and reliable operation
IT equipment running continuously, also require the precision air conditioning function 365dx24h uninterrupted reliable operation.Even in winter, it also needs to supply corresponding refrigeration ability, and can satisfy the requirements of condensation pressure and cold operating environment in the north.
The reliability requirement of data center machine room is very high. It is necessary for air conditioning machine to operate safely within the operating life (generally more than 8 years) to provide a constant temperature and humidity environment for the machine room.
2. Requirements that can be monitored and handled
The number of air conditioning units in the data center is large, so it is necessary to carry out scientific and professional protection and handling, which requires remote monitoring and handling of precision air conditioning units.
Together, the air conditioning of the data center is one of the main energy-consuming equipment, which requires the energy-saving operation of the air-conditioning unit, and also requires the air conditioning to be monitored and handled.
Details: what are the strict environmental requirements of the data center machine room?5
3. Relative humidity control requirements
Although the IT equipment of the data center machine room does not attack the change of humidity, but the humidity of the machine room is necessary to ensure that within a scale, IT is generally 40-60%.
The humidity is too low, which simply leads to the electrostatic outbreak of electronic components, the formation of electrostatic discharge or even breakdown;The humidity is too high, and it simply causes the appearance of equipment and components to appear condensation water, leakage or short circuit phenomenon and cannot work normally.Therefore, it is required that the air conditioner in the data center machine room has the function of humidifying and dehumidifying, and can control the relative humidity within the allowable 40-60% scale.
4. Dust removal and air purification requirements
In addition to the requirements of temperature and relative humidity, the air conditioning of the data center machine room is necessary for dust removal and air purification.Dust because the telecom room will affect the normal operation of such equipment IT, dust piled up on the electronic components easily lead to circuit boards, insulation, corrosion function decline, many problems such as poor heat dissipation, required data center computer room air conditioning air filter has good dust removal and air purification function.
Details: what are the strict environmental requirements of the data center machine room?6
5. The unit has a high calorific value, and the precision air conditioning used in the machine room is required for large refrigerating capacity, large air volume, small enthalpy difference and large air cooling ratio
(1) small enthalpy difference
Together, the transpiration temperature of air conditioning is relatively high to prevent the unnecessary dehumidification when cooling.
(2) large refrigerating capacity
The heat load of the data center machine room is very large, and the heat load of IT equipment is severe, so the heat load per unit area is much higher than the operating area, that is, the heat load is very large.Since these devices do not attack moisture changes, the wet load is small.This requires that the air conditioning used in the machine room can be strong enough to quickly eliminate the declared heat in unit time.
(3) high air volume
Because air conditioning in the machine room requires a small enthalpy difference of air supply, preventing unnecessary dehumidification, and other requirements of large cooling capacity, it is necessary to adopt the plan of large air volume.Large volume of circulation also is advantageous to the room temperature, humidity and so on goal of safe control, also can ensure the balance of room temperature, humidity, reach the effect of large computer room air flow distribution is reasonable, prevent engine parts heat collection.
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