SAT Series Two Stage Series Screw Air Compressor
In a two-stage series screw compressor, the high temperature air produced after the first stage of compression is first cooled down by oil while remaining at constant pressure before reaching the second stage of compression. The entire compression process is close to isothermal compression, which reduces potential energy loss. The pressure ratio for each stage of two-stage compression is decreased and leakage at the rotor seals is reduced significantly. In comparison with single-stage compression, the theoretical air delivery volume can be increased by up to 8 – 15% and the energy consumption can be reduced by 8 – 15% correspondingly. The price–performance ratio is best when running at full load for long periods of time.
With two-stage compression, parts are enduring less stress at each stage and the thermal load is lower, therefore allowing for a longer service life.
High Efficiency Two Stages Compression
● High efficiency energy conservation, reduce the cost of production cycle
● Two Stage compression is more close to isothermal compression.
● Reduce leaks, and increase volumetric efficiency
● more 15% energy saving than single stage compression.
● Stable and reliable
● Low pressure differential applied to parts
● Low thermal loading
● Easy maintenance
● Safe and environmental protection.
Compare the power consumption between single-stage and two-stage air compressor at the same power.
Compare two stage and single stage compression with the same power, efficiency gains is up to about 15%, energy loss can be saved around 15% accordingly.
Compare to single stage compression, high temperature air compressed at first stage of two stage compressor is cooled down by oil and air being constant compressed to reduce second stage inlet temperature. Entire compression process is close to isothermal compression which reduces energy loss. Pressure ratio for each stage of two stage compression is decreased and leakage between rotor seal is reduced significantly. Outstanding increased airend volumetric efficiency optimized cost-efficiency ratio when operated in continuous full load.
High Efficiency Two-Stage Air Compressor
● The unique air end design which combines the first and second stage in an air end driven by gears to make the best linear velocity for every compression rotor.
● Injecting the misty oil in air end between first and second stage to make the best cooling effect. By controlling the oil volume and keep compression air above dew point to prevent liquid water formed while improving the efficiency. It’s to avoid the corrosion of second stage air end and emulsification of lubricant.
Axial Inlet Air Design of First and Second Stage Air End:
● Effective length of screw is adequately used to optimize compressor efficiency.
● Reducing the unbalanced force of axial to improve service life of air end and bearings.
● Significantly reduce the operation noise.
High Efficiency Design
Safe and high-efficiency air filter system
● Large dust particles flowed by the cyclone stream into the rubber trough which is in front of air filter housing and prevent dust not to stick on the surface of air filter.
● The long service life, large filtration area and low resistance of inlet air which guarantees the air is clean.
● The unique inlet air channel of air filter which directly suck the cool air outside to make the higher density of inlet air for better efficiency.
Intake Valve
One valve serves as non-return valve, shut-off valve and modulation control valve (optional). The low pressure drop design optimizes air intake efficiency. The compressor adjusts itself automatically with the actual need for compressed air as it operates, allowing for more accurate control of unload pressure and thus greater energy efficiency.
Independent Bearing
No more bearing lubrication by oil from secondary oil return pipe. The bearings are now lubricated by independent lubrication line. With the independent oil filter, the cleanness of lubricant is ensured.
High Efficiency & Easy maintenance of Oil Separation System
● The bigger oil separator design also enhances the bigger area. It possesses better filter effect and reduces the pressure drop in the process of oil separation to make a high efficiency air compression system
● The rotation shaft patent design of oil tank cover makes oil separator replacement easily.
Cloud Launch Device (optional)
Air Compressor internet and management system on the cloud platform which possesses the functions of monitoring, fault diagnosis, repair and maintenance. This device will promptly send fault information and operation condition to technician by message and email.
All end faces sealed to completely remove the leakage
An environment-protective zinc-connector is mounted for connection and the end faces are sealed to completely remove the leakage.
Improved noise control
Fusheng SA series air compressor has improved noise control. In addition to an efficient airend vibration-damping device, independent inlet duct and cooling fan of air filter and motor also have low noise design which reduce airend operation noise from source.
Asbestos-free gaskets protects operator health
Machine uses high temperature and pressure resistance non-asbestos gasket for operators, because asbestos gasket does a great harm to our health and environment during operation.
Unique Cooling Flow Field for Silence and Efficiency
● With the centrifugal fan, cold air is sucked in directly from outside to cool the cooler, and hot air is dissipated out from the top; With the greater heat transfer surface, the cooler ensuring excellent cooling effect.
● During cooler cleaning, simply remove the cover without dismantle the air duct and doors.
● In the electric control box, the colder air is drawn in directly to ensure the best heat dissipation.
● Independent air intake line in the motor ensures that colder outside air is drawn to the motor directly, and a silencing design is added at the intake port.
● Dual fan design determines fans to be activated according to ambient temperature. This design is a "mechanical frequency converter" for fan.
● Water cooling model features heavy duty cooler with excellent cooling result and is suitable for high temperature environments. Compressed air passed at a time without pressure drop. Water goes inside of tube while air goes outside. Straight tube design is easy to clean.
Planning your compressed air system
Site requirements
● Compressor room should locate in wide, good lighting facility to facilitate maintenance and service.
● Compressor room should have flat ground, with proper temperature, less dust, clean air and good ventilation to ensure the best operation.
Compressed air quality and requirements
Compressed air produced by oil injected screw air compressor contains large quantity of water and little oil which will damage precision instrument, meters and lower product quality.
In accordance with process and requirements of compressed air quality, select appropriate air dryer, precise filter (filters oil and fine particle) is necessary.
Technical Data
