Now the general clean workshop will choose air conditioning units, what are the advantages of these air conditioning units?
1. Large air volume
The dust-free room mainly filters the dust and bacteria in the air through the circulation of air volume, so as to control the abiotic and biological particles in the air and reach the clean standard. Therefore, enough air volume is needed to ensure the cleanliness of the room. The air volume of the dust-free room is generally calculated according to the indoor air change times, usually 10 times, or even dozens of times, especially the one-way flow dust-free room, the air change times reach hundreds of times of the room volume.
Large air volume is a test for the strength of air handling unit, so clean air handling unit must first meet the requirements of high strength.
2. High pressure head of fan
In general, the dust-free room should adopt the way of centralized air supply and return to ensure that the positive and negative pressure regulation requirements of the dust-free room are maintained, so the pipe resistance of the dust-free room is generally more than twice that of the ordinary air conditioning. To overcome these resistance, the air supply fan of the air handling unit is required to have enough pressure head. Therefore, the air supply fan of the air handling unit of the dust-free room generally adopts the fan with the wing shape of the rear bending machine, or the fan without the nest shell, so as to achieve the high pressure of the air supply and return head. The lower the air leakage rate of clean room air handling unit is, the more energy is saved for customers and the lower the operation cost is.
3. High temperature and humidity control accuracy
Different from the requirements of general comfort air conditioning to meet the comfort of personnel, the accuracy of temperature and humidity control is to meet the process requirements. For example, in the manufacturing of some electronic products, the control requirements of temperature and humidity are very strict. In medical and experimental animals, the control accuracy of temperature and humidity is also clearly required. In order to achieve constant temperature and humidity, it is required that the air handling unit at least has refrigeration, heating, humidification, dehumidification and other functional sections, and requires precise control.
4. Strict positive and negative pressure control
In order to prevent dust and bacteria from spreading to the clean area or cross infection caused by the spread of virus and bacteria, the positive and negative pressure control of clean room is very important, especially in medical occasions, it is necessary to prevent the spread of radioactive dust, harmful gas, odor and bacteria, so as to control them accurately and effectively It is very important to control the positive and negative pressure.
In practical engineering application, both industrial dust-free room and general biological dust-free room are maintained by positive pressure, but negative pressure control is adopted for the biological dust-free room with toxic and harmful gas, flammable and explosive solvent and special requirements. In order to have accurate differential pressure control value, the air handling unit in the dust-free room needs to have a lower air leakage rate in order to have a higher control accuracy. At the same time, the shunt section with centralized air supply and return will be widely used in air conditioning box.
5. Good filtration system
Whether it is the industrial dust-free room that meets the requirements of process design, or the bioengineering that meets the requirements of medical, pharmaceutical and experimental animals, the common feature is to meet the dust-free, which will be completed by a set of good air filtration system. The control degree of cleaning technology to microorganism and dust mainly depends on the performance of filter. The air filter needs to have good quality, once leakage occurs, it is impossible to reach the clean possibility. In addition to its own no leakage, the filter in the air-conditioning box should also pay attention to the sealing.
Shandong ed purification Engineering Co., Ltd. has strong technical strength and construction experience. According to the different needs of clean places, professional equipment is used to form different levels of clean standard space and create the most suitable production and working environment. At present, it has established close cooperation with many enterprises and is a reliable professional purification project implementer. For more knowledge of medical purification industry, please pay attention to WeChat public address: Aide-188 (Ed purify oxygen supply).