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Fan filter unit
Plasma electrostatic purifier
Purification principle
The room air is sucked from the top by the built-in fan and sent to the high-efficiency air filter below. The air is sent down through the high-efficiency air filter paper at a speed of 0.5 micron, and the air is recirculated and recirculated.
The room air is taken in from the top by the built-in fan or through the fan coil of the room, and sent to the electrostatic cleaner below. The air passes through the plasma electrostatic purifier at a speed of 1.2 m/s and is sent downward or sent out to all sides or cleaned. High concentration of plasma air to purify the room air.
Purification target
Particulate matter and microorganisms
Particulate matter, microbes, odors and gaseous pollutants.
Purification method
Passive purification
Passive and active purification, the inhaled air is purified by the purifier, the non-inhaled air is actively purified by the plasma diffused in the air, the odor is separated, the microorganisms are killed, and the PM2.5 dust is condensed into the less harmful PM10. Granules.
Room average PM particulate purification efficiency
When the amount of clean air reaches 4 times or more, and the room pollutes the air, it can achieve an average 80% purification efficiency of the room air.
Same as left
Room air purification uniformity
FFU is designed and manufactured according to the requirements of industrial clean room. The air supply can only be discharged to the lower layer at a low speed. It cannot be ventilated on all sides. The room air cleanliness has a large deviation of the uniformity. Only in the far away FFU, the air cleanliness is poor. The laminar flow is suitable for laminar flow clean room or partial purification, which is not suitable for civil environment.
High-speed turbulent air supply, air outlet on all sides, clean air blowing to the room in all directions, the average air cleanliness of the room is good, and the polluted air is fully mixed with clean air.
Purification effect on PM2.5 small particles
PM2.5 particles include 0.01-2.5 micron particles. The smaller the particle size, the more harmful the particles are, and the easier it is to be inhaled. No research and testing have shown that the high-efficiency filter has a 0.01 micron particle size and can limit the filter. Use expensive ultra-efficient filters to filter out.
Through the principle of electrostatic adsorption, it can effectively adsorb micro-pollutants of ultrafine particles of 0.01-0.1 micron.
Odor purification rate of smoking spots
The high-efficiency filter unit is an odor purifier, which is ineffective for odor purification. There is no change in the smoke smell at the smoking point. It is only removed after being sucked into the purifier. The concentration of airborne particles at the smoking point of the colleague is not related to whether or not the purifier is open. It is not because the air purifier is turned on, the concentration of smoke at the source of smoking is significantly reduced.
Plasma active decomposition to eliminate smoke, even smokers can also feel the smell of smoke faded, foreign tests have proved that the electrostatic purifier has a significant effect on the purification of 0.01 micron particles, up to 80%.
Gaseous pollution purification
There is no purification effect on formaldehyde, RVOC and other gaseous pollutants in the room.
For formaldehyde, TVOC has obvious electrolytic separation and purification effect.
Microbial disinfection rate
It can block microorganisms from passing through high-efficiency filters, but can not kill microorganisms and can spread and spread on the surface of the filter to form secondary pollution.
High-voltage static electricity destroys the microbial cell structure, kills microorganisms, and has no secondary pollution.
Filter replacement requirements
FFU is used in the air purifier of the industrial clean room. The air sent to the FFU has been pre-treated by the built-in southern junior medium effect filter, and the air is cleaned. Therefore, in the industrial clean room, the FFU high efficiency filter can be used for several years. However, in the non-clean room environment where there is no effective system, the high-efficiency filter needs to be replaced every month, and the replacement cost is high and the management is complicated.
Clean the vacuum cleaner every six months, no PM2.5 purification supplies.
Filter supplies
The high-efficiency filter resistance is 90-250PA, which requires the indenter of the independent fan to overcome the resistance and send the purified air. If the air in front of the FFU is equipped with the initial effective protection, the energy consumption will be doubled.
The electrostatic chuck has a resistance of 30PA, which is much smaller than the high-efficiency filter. The energy consumption of the fan is 1/3-1/8 of the FFU filter under the same conditions, and no independent fan is needed.
Filter junior high school combined application
It is necessary to apply the filter in a combination of high-efficiency in junior high school. Otherwise, the service life of the high-efficiency filter will be greatly shortened. Generally, it will be exposed to the air, and the high-efficiency filter will be replaced within 15-30 days.
A complete static integration with high performance filter performance in the middle and middle Asian.
Filter annual replacement fee
Each FFU needs to be replaced every year in a non-clean environment. The basic cost of replacing 12 times is more than 5000.
Clean the electrostatic dust collector twice a year for 50 yuan
Purification performance attenuation
When the filter is changed every month, the air volume has been reduced by more than 50% due to clogging, and the corresponding purification performance is reduced by more than 50%. The room air purification performance therefore fluctuates between 100-50%, when the medium air filter cannot be replaced periodically. Purification performance may be attenuated to 10%.
The air volume passing through the electrostatic purifier changes throughout the life cycle, and the purification performance needs to be maintained at 80% or more of the original performance when cleaning, and the room air purification performance is stable at 100-80%.
noise
The noise of high-grade air volume is 50-60 decibels, and the low air volume can meet the purification requirements. If the air filter is not replaced on time, the noise of the FFU will be increased due to the wind resistance. If the front-end high-efficiency filter is used, the noise will increase by 5- 10 decibels, the air volume is also reduced.
When the air volume is more than 1300 cubic meters per hour, the noise is about 48 decibels, and the air volume is basically unchanged.
Health
no
The high concentration of negative ions released by the plasma is good for health and reduces colds and other diseases.
Eliminate the classic surface of the environment
no
Has a significant static elimination, especially in a dry environment in winter
Ozone and other harmful gases
Ozone-free, common air-efficient filters also have and release volatile formaldehyde and TVOC
No ozone pollution, no harmful gases
Air supply relative humidity
The original design of FFU is not directly linked with the air supply air supply. If the link will cause the fan of the FFU to be in a dangerous environment with a relative humidity of more than 80%, the motor may be damaged by moisture, the high-efficiency filter mold and the filter paper are damaged by moisture.
No motor leakage in the supply of moisture, no filter.
Can it be used in series with the fan coil
No, you need to have your own fan
Resistance 30PA, in most cases can be applied in series with the fan coil, with ducted, ceiling and return air, flexible application.
in conclusion
FFU has low flow rate, no effective front air filter protection, and can not be fully mixed with indoor air. It is only suitable for air purification in industrial dust-free workshops, complicated operation and maintenance.
Four sides of the air supply, can be fully mixed with the room air to achieve uniform purification, no consumables replacement, low operating costs, while purifying the solid, gaseous and micro-organisms, with health functions.
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