With the improvement of people's living standards, small household air conditioning, central air conditioning gradually into our lives, air conditioning has become a must for our life and work of electrical appliances, but there is a kind of air conditioning may be unfamiliar to us, or even have not come into contact with, that is - constant temperature and humidity air conditioning, this air conditioning because of its strict control of the closed environment This kind of air conditioner can strictly control the temperature, humidity and cleanliness parameters of the closed environment, with high efficiency and energy saving, low noise and environmental protection and other functions, so the constant temperature and humidity air conditioner is widely used in the electronics, optical equipment, cosmetics, medical and health care, biopharmaceuticals, food manufacturing, various types of measurement, testing and laboratory and other industries.
What is constant temperature and humidity air conditioning
1 Constant temperature and humidity air conditioning refers to special air conditioning machine with strict requirements for temperature, humidity and cleanliness, which is characterized by high efficiency and energy saving, low noise and environmental protection, and so on, so it can be widely used in electronics
The constant temperature and humidity air conditioner is a special air conditioner with strict requirements for temperature and humidity and cleanliness, which can be widely used in industries such as electronics, optical equipment, cosmetics, medical and health care, biopharmaceuticals, food manufacturing, various types of metrology, testing, and laboratories.
II. Constant temperature and humidity air conditioning features
1, year-round refrigeration
Because of the heat generated by the server room is very large, some IDC server room heat is more than 30?kw / square meters, so all year-round is cooling.
One thing that needs to be mentioned here is that the air conditioner in the room also has a heater, but it is only in the dehumidification of the time to start. Should be dehumidification when the air temperature should be relatively low, to avoid the room temperature is reduced too quickly (room requirements temperature change every 10 minutes does not exceed 1 ℃, humidity does not exceed 5% per hour).
2, high apparent heat ratio
The apparent heat ratio is the ratio of the apparent cooling capacity and total cooling capacity. The total cooling capacity of the air conditioner is the sum of sensible and latent cooling, in which the sensible cooling is used to cool down the temperature, while the latent cooling is used to dehumidification. The heat of the room is mainly sensible heat, so the sensible heat of the room air conditioner is relatively high, generally above 0.9 (ordinary comfort air conditioner is only about 0.6). Large air volume, small Han difference is the essential difference between the machine room air conditioner and other air conditioners. The use of large air volume, you can make the outgoing air temperature is not too low, and increase the number of air changes in the server room, which is favorable to the server and computer computing. Server room temperature changes in a short period of time will be too large to cause the server computing errors, server room humidity is too low will cause static electricity (humidity at 20% when the static electricity can reach 10,000 volts).
3, high energy efficiency
Energy efficiency ratio (COP) that is, the conversion ratio between energy and heat, 1 unit of energy, converted to 3 units of heat, COP = 3. Since most of the air conditioning server room with scroll compressor (the smallest power has 2.75KW), COP can reach a maximum of 5.6. the whole machine energy efficiency ratio of 3.0 or more.
4, high-precision design
Machine room air conditioning can be adjusted not only to the temperature, but also to the humidity can be adjusted, and the precision is very high. Computers, especially servers, have particularly high requirements for temperature and humidity, if the change is too large, the computer's calculations may be wrong, the service provider is very unfavorable, especially in the banking and communications industry. Now the machine room air conditioning requirements generally in the temperature accuracy of ± 2 ℃, humidity accuracy of ± 5%, high-precision machine room air conditioning can be temperature accuracy of ± 0.5 ℃, humidity accuracy of ± 2%.
5, high reliability
A machine room is the most important focus on reliability. 8760 hours a year to run without failures, it requires a machine room air conditioning reliable parts and excellent control system. General room is more N +1 backup, an air conditioning problems, other air conditioning can immediately take over the entire system.
It is believed that through the above introduction, the air conditioning we have less contact in life to understand, constant temperature and humidity air conditioning on the environment of the temperature, humidity and cleanliness have strict control of data control is very strict, because of its high cost, basically each unit price is in the 5W or so, so constant temperature and humidity air conditioning basically used in industry and science and technology, daily life is relatively rare.
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