GL320型自潔式高效空氣過濾器是由中國航空工業規劃設計研究院研制的，江蘇東澤環?？萍加邢薰旧a制造的新型高效空氣過濾器，它經過了論證、設計、試制、試驗、使用等階段，產品的性能完全滿足了工業燃機高爐鼓風機、空氣壓縮機對進氣空氣品質的技術要求，達到了國外同類型產品的先進水平，尤其是GL320型自潔式高效空氣過濾器裝置的性能更優，它的初始阻力低于美國唐納森公司(Donaldson)的同類產品。

GL320 型自潔式高效空氣過濾器裝置適用范圍　　

GL320型高效空氣過濾器與鋼結構箱體及W-140型文氏管、脈沖自潔系統組合成自潔式高效空氣過濾器裝置，是工業燃氣輪機、大型空氣壓縮機、高爐鼓風機的空氣凈化進氣過濾組合件，為陜鼓、杭氧的定點配套產品。

GL320型自潔式高效空氣過濾器裝置性能優點　　

GL320型自潔式高效空氣過濾器裝置，已經滿足了工業機械對進氣的過濾要求，自潔反吹系統性能，經檢測，其性能指標如下：　　

●流過過濾器的空氣含塵量≤0.5mg／m3 　　

●流過過濾器的塵埃顆粒粒徑≤2μm 　　

●初始阻力<150Pa(額定流量時) 　　

●具有自潔功能，與脈沖噴吹系統配套可使機組長期正常運行的阻力維持在600Pa以下　　

●聲衰減量>15dB(A) 　　

●結構緊湊，安裝和維護方便　　

●具有良好的抗水性能　　

●GL320型高效空氣過濾器，能反復多次自動清灰(人工)后仍可繼續使用。

GL320 型自潔式高效空氣過濾器裝置的自潔系統　　

高效過濾裝置的自潔系統包括兩部分：脈沖噴吹系統和壓差檢測及控制系統，前者包括壓縮空氣供應管路，壓縮空氣氣包，電磁脈沖閥和噴吹管；后者包括微壓差傳感器和具有壓差檢測，脈沖控制及超限報警等功能的測量控制儀表?！　?/p>

脈沖噴吹系統、電磁脈沖閥　　

電磁脈沖閥是由脈沖閥(差動氣閥)與先導閥(控制閥)組合在一起的組件。閥體采用鋁合金壓鑄而成，經表面處理后具有防腐蝕的能力。其技術指標應滿足下述要求：　　

●工作介質：工作壓力為0.4-0.6MPa的清潔空氣；　　

●控制電壓：DC24V或DC110V，同脈沖控制儀配套使用；　　

●放氣量：當氣源壓力為0.6Mpa，脈沖寬度為0.12s時的空氣流量不小于0.2m3；　　

●使用環境：-40～+80℃，相對濕度≤85％，特殊情況100%；　　

●使用壽命：不低于100萬次。 自潔系統的設計和安裝應滿足下列要求：　　

●氣包、電磁脈沖閥與噴吹管的連接處可靠密封　　

●壓縮空氣供氣管路應設置油水分離器和過濾器，確保供氣潔凈，過濾后的空氣中應清除油、水及雜質(≤5μm) 　　

●氣包的體積能滿足保持電磁脈沖閥的供氣穩壓要求 微壓差傳感器和控制檢測儀表組成，滿足下列要求：　　

●量程為0-1500Pa(0-150mmH2O) 　　

●讀數分辨率為2.0mmH2O 　　

●設定控制值應可調，超限報警并輸出控制信號　　

●脈沖控制儀同電磁脈沖閥配套使用其性能應滿足下列要求：　　

●輸出脈沖間隔可在1-30s范圍內調節　　

●輸出脈沖寬度可在0.03-0.2s范圍內調節。

GL320 Self-cleaning High Efficiency Air Filter Device.　

Research & Development

GL320 Self-cleaning High Efficiency Air Filter Device was firstly applied in Chinese Aviation Industrial. Its research and development began at July 1982 and ended at December 1988.

GL320 Self-cleaning High Efficiency Air Filter Device was developed by Chinese Aviation Industry. The new type high efficiency filter made by us can meet all technical requirements of furnace blast and air compressor. The performance is nearly the same with overseas similar products and its initial pressure is lower than America Donaldson filter.

Application

 GL320 Self-cleaning High Efficiency Air Filter Device combines with steel shell, W-140 type venture and pulse self cleaning system. It is a matched product of industrial gas turbine, large air compressor, and furnace blast.

Performance Advantage

After test, GL320 Self-cleaning High Efficiency Air Filter Device performance is as below:

●Dust concentration: ≤0.5mg／m3

●Dust size ≤2μm 　　

●Initial Pressure <150Pa(under rated flow) 　　

● able to self-cleaning. Operating with pulse jet system can keep the whole device working in an circumstance lower than 600pa resistance in long term.

●noise reduced>15dB(A) 　　

●Strictly structure, easy for installation and maintenance

●wonderful water-proof 　

●GL320 Self-cleaning High Efficiency Air Filter Device can keep working after clean dust automatically or manually for many times.

Self-cleaning System　　

High Efficiency Air Filter Device self cleaning system include two parts: impulse puff and blow system, pressure difference inspection and control system, the former consists of compressed air supply pipeline, compressed air gas bag, electromagnetism impulse valve and puff blow pipe; while the later contains measure and control instrument in functions of minute-pressure difference measure sensor and pressure difference inspection, impulse control and transfinite alarm, and etc.

Impulse puff and blow system, electromagnetism impulse valve

Electromagnetism impulse valve contains impulse valve（differential gas valve）and guide valve（control valve）. The valve composition is made of aluminum alloy through pressure casting and surface treatment which possesses the function of corrosion protection.

Its technological qualification should meet the following requirement

Working medium: working pressure is 0.4-0.6Mpa clean air;

Control electric: DC24V or DC110V, complementary use for same impulse control instrument;

Discharge flow: when pressure is 0.6Mpa and pulse width is 0.12s, air supply not less than 0.2m3;

Using condition: -40~+80℃; relative humidity ≤85%, sometimes 100%.

Life time: not less than 1,000,000 times.

For self clean system, its design and assembly should meet the following requirement:

Seal reliable the joint of Gas bag, electromagnetism impulse valve and puff blow tube.

Compressed air supply pipeline should set oil gas separator and filter to ensure clean air supplied, while filtered air should eliminate oil, water and residue;

Gas bag bulk should keep electromagnetism stably supply gas, usually 8 or 10 electromagnetism impulse valve as a group.

Micro pressure difference sensor and control checking instrument should meet the following requirement:

Range is 0-1500PA(0-150mmH2O)when fully range, its checking precision is 5%

Distinguish capacity is 2.0mmH2O

Adjustable control number if designed, alarming when exceeding limit and output control sign

Impulse control instrument is complementary with electromagnetism impulse valve.

its function should meet the following requirement

when controlling electromagnetism impulse valve, the control instrument number is 20Road.

output impulse interval can be adjusted among a range of 1-30s.

output impulse width can be adjusted among a range of 0.03s-0.2s.