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  • Basic knowledge of Air Filter
  • Editer:Hangzhou Shen Bang purification equipment Co., Ltd. Date:2017-02-13 10:35 Click
Air types are in different types, categories and varieties , it is sometimes difficult to tell exactly what is the efficiency of the HEPA filter - the primary filter - the air conditioning filter Guangzhou jintianruilin purification air filter manufacturing Co., Ltd. is the first domestic industry at the same time through the filter manufacturer ISO14001 and ISO9001, has a world-class production line of the production workshop and clean air filter filter with high efficiency and advanced testing equipment, all with the ball.
Purification equipment and air filter products professional R & D, design, production base of the primary filter, medium efficiency filter, high efficiency filter and production process has a number of national patents, also, it is a global leader in all areas of customer support, performance. In KLC you can understand all kinds of filter products, parameters and high efficiency air filter initial filtration efficiency of filter - air filter representation methods.
 
 
 Let's give an introduction:
High efficiency air filters - primary filter - air conditioning filter filtration efficiency representation method
When the dust concentration in the filtered gas is expressed as weight concentration, then the efficiency is the weight efficiency; when expressed by the counting concentration, the efficiency is the effective efficiency; when other physical quantity is relative expression, it is the color efficiency or Turbidity efficiency. The most commonly used representation is the counting efficiency expressed as particle concentration in the inlet and outlet airflows of the filter.
 
  1. In the rated air flow, according to national standards GB / T14295-93 "air filter" and GB13554-92 "high efficiency air filter" requirement, high efficiency air filter - primary filter - air filter efficiency The scope is as follows:
 
A primary filter of more than 5 micron particles, the filtration efficiency of 80, E = 20, initial resistance is less than or equal to 50Pa filter.
to more than 1 micron particles, the filtration efficiency of 70, E = 20, initial resistance is less than or equal to 80Pa.
 
High efficiency filters, to more than 1 micron particles, the filtration efficiency of 99, E = 70, initial resistance is less than or equal to 100Pa sub high efficiency filter. To more than 0.5 micron particles, the filtration efficiency of E is higher than 95, initial resistance is less than or equal to 120Pa.
 
High efficiency filter, to more than 0.5 micron particles, the filtration efficiency of E is higher than 99.99, initial resistance is less than or equal to 220Pa filter.
To more than 0.1 micron particles, the filtration efficiency of E is higher than 99.999, initial resistance is less than or equal to 280Pa.
 
 
The development of the 2 domestic air filter industry was relatively late. Before many enterprises were using foreign produced air filters, so now there are many companies use the imported filter, and they said that the efficiency of the method and the high efficiency air filter - initial filtration efficiency of filter - air conditioning filter to have different methods for comparisons in the conversion relation between them, the list is as follows:
By European standards:
Coarse filter is divided into four (G1 ~ ~ G4):
 
G1 efficiency of the particle size ≥ 5.0μm, filtration efficiency E ≥ 20% (corresponding to the US standard C1)
G2 efficiency of particle size ≥ 5.0μm,
Filtration efficiency 50> E ≥ 20% (corresponding to the US standard C2 ~ C4)
 
G3 efficiency of particle size ≥ 5.0μm, filtration efficiency 70> E ≥ 50% (corresponding to the US standard L5)
G4 efficiency of particle size ≥ 5.0μm,
Filtration efficiency 90> E ≥ 70% (corresponding to the US standard L6)
 
 
 
In the efficiency filter is divided into two levels (F5 ~ ~ F6):
F7 efficiency of particle size ≥ 1.0μm, filtration efficiency of 99> E ≥ 70% (corresponding to the US standard H13)
    F8 efficiency of particle size ≥ 0.5μm,
 
Filtration efficiency 90> E ≥ 75% (corresponding to the US standard H14)
 
F9 efficiency of particle size ≥ 0.5μm, filtration efficiency of 99> E ≥ 90% (corresponding to the US standard H15)
 
High efficiency filters are divided into two levels (H10, H11):
10 efficiency of particle size ≥ 0.5μm, filtration efficiency of 99> E ≥ 95% (corresponding to the US standard H15)
  H11 efficiency of particle size ≥ 0.5μm, SEO,
 
Filtration efficiency 99.9> E ≥ 99% (corresponding to the US standard H16)
 
High efficiency filter is divided into two levels (H13, H14):
H13 efficiency of the particle size ≥ 0.5μm, filtration efficiency E ≥ 99.9% (corresponding to the US standard H16
H14 efficiency of particle size ≥ 0.5μm, filtration efficiency E ≥ 99.99% (corresponding to the US standard H17)
Air filter specifications and rated air flow
"Corey" brand early, medium and high efficiency air filters, high efficiency air filters - early effect filter - air-conditioning filter that the efficiency of filtration;
 
(1) Kerui "brand G series: early effect of air filter activated carbon filter early resistance of small; large amount of wind; the use of long life. Adaptation: suitable for primary air conditioning system filter. The primary filter of the system is used to filter the dust particles of 5μm or above. The primary effect filter is of plate type, folding type and bag type. The outer frame material includes paper frame, aluminum frame, galvanized iron frame, Nylon mesh, activated carbon filter, metal mesh, etc., protective net has double-sided spray galvanized barbed wire and galvanized barbed wire.
Early effect filter features: cheap, light weight, versatility, compact structure. Mainly used for: ● central air conditioning and centralized ventilation system pre-filtration ● large-scale air compressor pre-filtration ● clean air return system ● local high-performance filtration equipment pre-filter ● high temperature air filter with stainless steel frame, high temperature 250-300 ℃ filtration efficiency
This efficiency of the filter, commonly used in a primary air conditioning and ventilation systems, but also applies to only a simple filter air conditioning and ventilation systems. G series rough effect air filter is divided into eight varieties, namely: G1, G2, G3, G4, GN (nylon mesh filter), GH (metal mesh filter), GC (activated carbon filter) Coarse filter). Activated carbon coarse filter coarse activated carbon filter general application: air conditioning and ventilation systems
Odor and pollution Air treatment of harmful gases (such as benzene, formaldehyde, ammonia, etc.) adsorption removal of solvent recovery, the use of activated carbon felt surface area, adsorption capacity, rapid treatment of harmful gases, effective clean air odor control : High-efficiency air filter - primary effect filter - air-conditioning filter filtration efficiency representation;
      Mainly used to remove the gas, the hair off the smell and smoke, high efficiency air filter - early effect filter - air filter that the efficiency of the removal of the odor makes the room the proportion of return air increases, Thereby reducing the energy consumption of heating and cooling.Carbon carbon control carbon carbon than 63% of the proportion of carbon.The filter can be used with most manufacturers of the box.
(2) "Corey" brand in the efficiency of air filters: medium efficiency filter is mainly used for central air conditioning and centralized air supply system. It can be used for the primary filtration of the air conditioning system to protect the next level filter and the system itself. In the places where the cleanliness of the air purification is not strict, the air after the medium efficiency filter can be sent directly to the users. I produced the effect of bag filter (bagfilter) frame with cold plate spray, galvanized sheet and other forms of filter material.
 
Non-woven fabrics, glass fiber, filter particle size 1 ~ 5um, filtration efficiency of 60 ~ 95% (colorimetric). Medium efficiency air filter, mainly used for trapping 1-5μm particles of dust and a variety of suspended solids, widely used in various air-conditioning and air-conditioning systems, but also for multistage filtration system of intermediate protection. This series of products mainly bag structure, frame materials are: aluminum, galvanized steel, can also be made of frameless. Filter material to non-woven fabrics. "Corey" brand F series in the efficiency of air filters, high efficiency air filters - early effect filter - air - conditioning filter that the efficiency of filtration;
1) Function: Collect 1-5um dust particles
2) Type: frameless and framed bag
3) Media: special non-woven or glass fiber
4) Efficiency: 60% ~ 95% @ 1 ~ 5um (colorimetric method)
F series medium efficiency air filter is divided into two kinds of bags and non-bag, including bags including F5, F6, F7, F8, F9, non-bag including FB
FS), FV (Combined Medium Efficiency Filter).
(3) Kerui "brand GK series high efficiency air filter High efficiency air filter is mainly used in microelectronics industry, precision instruments and meters, medical and health, biological engineering, pharmaceutical and food industries and various clean rooms, Air purifier, air shower and other purification equipment in the final stage of the air filter. The product is ultra-fine glass fiber filter, hot melt for the separator, special aluminum frame, polyurethane two-component sealant, closed Hole sponge seal, spray steel mesh, such as flow through the strict refining process. HEPA filter - early effect filter - air-conditioning filter that the filter efficiency
1) Role: capture 0.1 ~ 0.5um of small particles
2) Type: aluminum alloy frame, no partition
3) Media: ultra-fine glass fiber paper
4) Efficiency: 99.999% @ 0.3 um (DOP method)