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Energy-Saving Oil-Free Screw Blower

A blower is a type of mechanical device that is mainly used to transport air or other gases. It works by the rotation of impellers or vanes inside, which increases the pressure of the gas and forces it to flow. Blowers are widely applied in various fields such as industrial ventilation, pneumatic conveying systems, and wastewater treatment plants. They come in different types, including centrifugal blowers and positive displacement blowers, each with its own unique features and suitable applications. Compared with some other gas delivery equipment, blowers are often known for their relatively high flow rate and moderate pressure capabilities.
 
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The oil-free screw blowers consist of a pair of screw rotors, casings, synchronous gears, bearings, sealing devices, and other interconnected components. When the motor drives the leading screw rotor to rotate, the driven screw rotor also rotates synchronously. Sealed chambers are formed between the rotor and the casing, as well as between the two rotors. As the rotors turn, these chambers gradually move from the inlet to the exhaust port, causing the volume to decrease, which results in the compression and discharge of gas. Thanks to advanced sealing and lubrication technology, no lubricating oil is required throughout the entire compression process, ensuring the oil-free quality of the compressed air.

 

  • Structural Composition 

Generally, it consists primarily of an outer cover, a main engine, a motor, an air filter, a muffler, an oil pump tank, and an oil filter. Among these, the screw host is the core component, which mainly comprises the casing, screw rotor, gearbox, bearing, shaft seal, and other essential components.



  1. High Efficiency and Energy Savings - The advanced screw profile design, combined with an efficient motor drive system, enhances overall efficiency and can significantly reduce energy consumption during prolonged operation. This results in energy savings of over 20% to 35% compared to conventional roots blowers. Additionally, our Luoyou brand of oil-free screw blowers utilizes permanent magnet synchronous frequency conversion motors, which offer more stable and reliable energy-saving benefits.


  2. Oil-Free and Clean: No lubricating oil is used during operation, eliminating the risk of oil contamination in compressed air. This guarantees the delivery of pure compressed air, meeting the highest "Class 0" oil-free standard. Consequently, the cleanliness and safety of gas-using equipment are ensured, significantly extending the service life and maintenance intervals of related equipment.


  3. The system operates reliably due to its relatively simple structure, which comprises few components. The screw rotor demonstrates excellent balance, resulting in low vibration and noise during operation. Furthermore, it offers high mechanical reliability, an extended maintenance cycle, and consistent performance even in harsh working environments.


  4. The aerodynamic noise generated by the screw rotor is minimal. Furthermore, the specially designed air intake and ventilation diversion system, combined with the composite anti-integrated exhaust muffler, further reduces operational noise. Consequently, the overall noise level of the machine can be maintained at below 60 dB(A).


  5. Intelligent Control: A wide range of air volume adjustments can be achieved by modifying the motor speed or utilizing the inlet control valve. Simultaneously, the operating parameters of the equipment can be adjusted in real-time through the intelligent control system. This includes signal adjustments and control based on dissolved oxygen (DO) levels or pressure readings, enabling precise aeration. These enhancements can significantly improve the operational efficiency of the equipment.


  • Technical Parameter

Oil-free Screw Blower
ModelPower(Kw)Working Pressure(Bar)FAD
(m3/min)
Outlet PipeOutline SpecificationWeight(Kg)
LY-11GF110.66.5DN1252100*1350*15701500


0.75.9




0.85.3




14.2




1.23.2


LY-15GF150.69DN1252100*1350*15701600


0.78




0.87.5




16




1.25


LY-22GF220.616DN1252200*1400*16001800


0.713




0.811.5




110




1.28.5




1.56


LY-30GF300.624DN1252200*1400*16002000


0.718.9




0.817




114




1.211.3




1.59


LY-37GF370.628DN2002650*1300*18302200


0.725




0.822




117.5




1.214.2




1.510.5


LY-45GF450.634.4DN2002650*1300*18302200


0.732




0.830




123




1.218




1.514


LY-55GF550.640.9DN2002900*1500*20002400


0.740




0.837




129




1.225




1.517.9


LY-75GF750.660DN2002900*1500*20002400


0.754




0.850




143




1.237




1.529


LY-90GF900.665DN2503000*1650*21502600


0.756




0.861




152




1.245




1.536


LY-110GF1100.683DN2503000*1650*21502600


0.774




0.866




165




1.256




1.545


LY-132GE1320.790DN3003200*1800*22003000


0.883




169




1.256




1.553


LY-160GF160186DN3003200*1800*22003000


1.275




  1. Water treatment industry: In the activated sludge process utilized in municipal sewage treatment plants, it is essential to accurately control the air volume during aeration. An oil-free screw blower provides stable, oil-free compressed air, which is crucial for maintaining consistent microbial activity and enhancing the effectiveness of sewage treatment. Furthermore, the aeration process in drinking water treatment is vital for ensuring the safety and hygiene of the water supply.


  2. Pharmaceutical industry: Because the compressed air used in the preparation process comes into direct contact with the drug, the pharmaceutical factory must employ an oil-free blower that can produce 100% pure compressed air. The oil-free screw blower has been certified by the German TÜV and has obtained ISO 8573-1 standard Class 0 certification, ensuring that the compressed air is entirely oil-free. This guarantees the cleanliness of the drug production environment and prevents potential contamination that could compromise the quality and safety of the drug due to various minute pollutants.


  3. Other fields: It is also widely used in electroplating, mixing, aeration for breeding, material transportation, oxidative desulfurization, biological fermentation, textiles, galvanizing, pneumatic conveying, printing, and other industries that require energy-efficient, low-noise, high-pressure blowers.



1.Who are we?

We are a compressor manufacturer factory in Shanghai.We have more than 10 years experience in producing and exporting air compressor, air dryer and air filter.


2.How about your customer service?

24 hours on-line service available.


3.Why choose us?

With Excellent Design, Advanced Technology, and a well-known reputation in both domestic and overseas markets, we are much confident in our products' quality and service. 


4.What are the payment terms?

We accept T/T, L/C, D/P, Western Union, Paypal, and Credit Cards.


5.Can products be customized?

We can alter, re-design and reassemble products to meet clients' requirements upon request. 

 


Oil-free Screw Blower
ModelPower(Kw)Working Pressure(Bar)FAD
(m3/min)
Outlet PipeOutline SpecificationWeight(Kg)
LY-11GF110.66.5DN1252100*1350*15701500


0.75.9




0.85.3




14.2




1.23.2


LY-15GF150.69DN1252100*1350*15701600


0.78




0.87.5




16




1.25


LY-22GF220.616DN1252200*1400*16001800


0.713




0.811.5




110




1.28.5




1.56


LY-30GF300.624DN1252200*1400*16002000


0.718.9




0.817




114




1.211.3




1.59


LY-37GF370.628DN2002650*1300*18302200


0.725




0.822




117.5




1.214.2




1.510.5


LY-45GF450.634.4DN2002650*1300*18302200


0.732




0.830




123




1.218




1.514


LY-55GF550.640.9DN2002900*1500*20002400


0.740




0.837




129




1.225




1.517.9


LY-75GF750.660DN2002900*1500*20002400


0.754




0.850




143




1.237




1.529


LY-90GF900.665DN2503000*1650*21502600


0.756




0.861




152




1.245




1.536


LY-110GF1100.683DN2503000*1650*21502600


0.774




0.866




165




1.256




1.545


LY-132GE1320.790DN3003200*1800*22003000


0.883




169




1.256




1.553


LY-160GF160186DN3003200*1800*22003000


1.275




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