Tag Archives: variable frequency air compressor

China best Variable Frequency Drive CHINAMFG Type Low Price Durable Screw Air Compressor best air compressor

Product Description

Product Description

The filter system is newly designed for the bipolar compression system, and the reasonable system design is equipped with the top 3 filters to ensure long-term stable operation of the equipment.

Air filter: front cyclone separation plus bipolar air filter with top filter material.
Oil separation core: large filter area plus high-strength metal mesh cover.
Oil Filter: the most extensive filter medium, with low system pressure drop and strong, anti-corrosion shell.

Main Engine Feature

Main Engine
The main engine adopts the design concept of large rotor and low speed, and the spindle speed is 1480. Low noise and vibration.
Two-stage main engine are more energy efficient than single-stage main engine. Under the same working conditions of exhaust volume and exhaust pressure, the energy consumption of the two-stage main engine is reduced by about 15% compared with that of the single-stage main engine. Under the same power consumption and exhaust pressure, the air volume of the two-stage main engine is about 15% larger than that of the single-stage main engine.

Power system:
High-efficiency fully enclosed air-cooled three-phase asynchronous motor, protection grade IP55, insulation grade F, in line with European EFF2 standard. Large starting torque, low noise, more reasonable structure, high efficiency (97%), energy saving, low vibration, reliable performance. Easy installation and maintenance. The front and rear bearings of the motor are the imported SKF bearings, and both are equipped with grease filling ports. 

Cooling system:
The design of the super-large cooler makes the heat exchange efficiency higher, the resistance loss is smaller, and the temperature controls and cools fan’s start and stop, which achieves the operation of the constant temperature, so as to achieve the effect of stable operation and energy saving, and make the whole machine especially suitable for areas with large temperature difference and various different Ambient temperature.
Two super-large cooling fans independently control the start and stop of each fan according to the exhaust temperature of the system, which perfectly fits the operation of the air compressor and saves electricity.

Filtration system:
A new filter system is designed for two-stage compression system. The reasonable system design is equipped with the top 3 filter system to ensure the long-term stable operation of the equipment.

Pipeline connection:
Metal hoses are used in oil roads and gas lines. Beautiful and reliable.

Electrical system:
Select the world’s top Schneider Electric components. Reliable work, high protection level, and strong thermal stability.

Specification

Mode R90‖-20/8 R110‖-24/8 R132‖-28/8

Machine

Set

Exhaust volume (m3/min) 20 24 28
Exhaust pressure (MPa) 0.8 0.8 0.8
Compression level two-stage compression two-stage compression two-stage compression
Motor power(kw) 90 110 132
Motor speed(rpm) 1485 1485 1485
Energy efficiency rating Grade I Grade I Grade I
Power supply(V/P/Hz) 380/3/50 380/3/50 380/3/50
Start method Y-△ Y-△ Y-△
Transmission mode direct connection direct connection direct connection
Connection size DN80 DN80 DN80
Cooling method air cooling air cooling air cooling
Length(mm) 2682 2682 3165
Width(mm) 1680 1680 1680
Height(mm) 1925 1925 1945
Machine weight(kg) 3350 3750 3900

 

Mode R160‖-34/8 R185‖-40/8 R200‖-43/8

Machine

Set

Exhaust volume (m3/min) 34 40 43
Exhaust pressure (MPa) 0.8 0.8 0.8
Compression level two-stage compression two-stage compression two-stage compression
Motor power(kw) 160 185 200
Motor speed(rpm) 1485 1485 1485
Energy efficiency rating Grade I Grade I Grade I
Power supply(V/P/Hz) 380/3/50 380/3/50 380/3/50
Start method Y-△ Y-△ Y-△
Transmission mode direct connection direct connection direct connection
Connection size DN80 DN100 DN100
Cooling method air cooling air cooling air cooling
Length(mm) 3165 3500 3500
Width(mm) 1680 1860 1860
Height(mm) 1945 2100 2100
Machine weight(kg) 4200 4500 4500

Mode R220‖-47/8 R250‖-54/8 R280‖-60/8

Machine

Set

Exhaust volume (m3/min) 47 54 60
Exhaust pressure (MPa) 0.8 0.8 0.8
Compression level two-stage compression two-stage compression two-stage compression
Motor power(kw) 220 250 280
Motor power(rpm) 1485 1485 1485
Energy efficiency rating Grade I Grade I Grade I
Power supply (V/P/Hz) 380/3/50 380/3/50 380/3/50
Start method Y-△ Y-△ Y-△
Transmission mode direct connection direct connection direct connection
Connection size DN100 DN125 DN125
Cooling method air cooling Water cooling Water cooling
Length(mm) 3500 4240 4240
Width(mm) 1860 2000 2000
Height(mm) 2100 2100 2100
Machine weight(kg) 4600 6500 6700

 

Mode R315‖-67.5/8

Machine

Set

Exhaust volume (m3/min) 67.5
Exhaust pressure (MPa) 0.8
Compression level two-stage compression
Motor power(kw) 315
Motor speed(rpm) 1485
Energy efficiency rating Grade I
Power supply (V/P/Hz) 380/3/50
Start method Y-△
Transmission mode direct connection
Connection size DN125
Cooling method water cooling
Length(mm) 4240
Width(mm) 2000
Height(mm) 2100
Machine weight(kg) 7200

 

 

Specification
 

Mode G7EZ GV7M GV15M GV22M GV37M

Machine

Set

Exhaust volume(m³/min) 1 1 2.0 3.4 6.1
Exhaust pressure (MPa) 0.8 0.8 0.8 0.8 0.8
Compression level single stage single stage single stage single stage single stage
Motor power(kW) 7.5 7.5 15 22 37
Motor speed rmp) 2900 3600 3000 3000 3000
Energy efficiency rating Grade III Grade III Grade III Grade III Grade III
Power supply (V/P/Hz) 380/3/50 380/3/50 380/3/50 380/3/50 380/3/50
Start method frequency conversion frequency conversion frequency conversion frequency conversion
Transmission mode direct connection direct connection direct connection direct connection direct connection
Outlet size G3/4″ G1/2″ G1″ G1″ G1 1/2″
Cooling method air cooling air cooling air cooling air cooling air cooling
Length ×Width x Height (mm) 710×580×
810
710×580×
810
1170×690×
940
1050×880×1260 1200×1000×1430
Machine weight (kg) 220 220 350 450 550

 

After-sales Service: Online
Lubrication Style: Lubricated
Cooling System: Air Cooling
Customization:
Available

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Currency: US$
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air compressor

How are air compressors employed in the petrochemical industry?

Air compressors play a vital role in the petrochemical industry, where they are employed for various applications that require compressed air. The petrochemical industry encompasses the production of chemicals and products derived from petroleum and natural gas. Here’s an overview of how air compressors are utilized in the petrochemical industry:

1. Instrumentation and Control Systems:

Air compressors are used to power pneumatic instrumentation and control systems in petrochemical plants. These systems rely on compressed air to operate control valves, actuators, and other pneumatic devices that regulate processes such as flow control, pressure control, and temperature control. Compressed air provides a reliable and clean source of energy for these critical control mechanisms.

2. Pneumatic Tools and Equipment:

Petrochemical plants often utilize pneumatic tools and equipment for various tasks such as maintenance, repair, and construction activities. Air compressors supply the necessary compressed air to power these tools, including pneumatic drills, impact wrenches, grinders, sanders, and painting equipment. The versatility and convenience of compressed air make it an ideal energy source for a wide range of pneumatic tools used in the industry.

3. Process Air and Gas Supply:

Petrochemical processes often require a supply of compressed air and gases for specific applications. Air compressors are employed to generate compressed air for processes such as oxidation, combustion, and aeration. They may also be used to compress gases like nitrogen, hydrogen, and oxygen, which are utilized in various petrochemical reactions and treatment processes.

4. Cooling and Ventilation:

Petrochemical plants require adequate cooling and ventilation systems to maintain optimal operating conditions and ensure the safety of personnel. Air compressors are used to power cooling fans, blowers, and air circulation systems that help maintain the desired temperature, remove heat generated by equipment, and provide ventilation in critical areas.

5. Nitrogen Generation:

Nitrogen is widely used in the petrochemical industry for applications such as blanketing, purging, and inerting. Air compressors are utilized in nitrogen generation systems, where they compress atmospheric air, which is then passed through a nitrogen separation process to produce high-purity nitrogen gas. This nitrogen is used for various purposes, including preventing the formation of explosive mixtures, protecting sensitive equipment, and maintaining the integrity of stored products.

6. Instrument Air:

Instrument air is essential for operating pneumatic instruments, analyzers, and control devices throughout the petrochemical plant. Air compressors supply compressed air that is treated and conditioned to meet the stringent requirements of instrument air quality standards. Instrument air is used for tasks such as pneumatic conveying, pneumatic actuators, and calibration of instruments.

By employing air compressors in the petrochemical industry, operators can ensure reliable and efficient operation of pneumatic systems, power various tools and equipment, support critical processes, and maintain safe and controlled environments.

air compressor

How are air compressors employed in the mining industry?

Air compressors play a crucial role in the mining industry, providing reliable and efficient power for various mining operations. Here are some common applications of air compressors in mining:

1. Exploration and Drilling:

Air compressors are used during exploration and drilling activities in the mining industry. Compressed air is used to power drilling rigs, pneumatic hammers, and other drilling equipment. The high-pressure air generated by the compressor helps in drilling boreholes, extracting core samples, and exploring potential mineral deposits.

2. Ventilation and Air Quality Control:

Air compressors are employed in underground mining to provide ventilation and control air quality. Compressed air is used to operate ventilation fans and air circulation systems, ensuring adequate airflow and removing harmful gases, dust, and fumes from the mining tunnels and work areas.

3. Material Conveyance:

In mining operations, air compressors are used for material conveyance. Pneumatic systems powered by air compressors are utilized to transport materials such as coal, ore, and other minerals. Compressed air is used to operate pneumatic conveyors, pumps, and material handling equipment, allowing for efficient and controlled movement of bulk materials.

4. Dust Suppression:

Air compressors are employed for dust suppression in mining areas. Compressed air is used to spray water or other suppressants to control dust generated during mining activities. This helps in maintaining a safe and healthy work environment, reducing the risks associated with dust inhalation and improving visibility.

5. Instrumentation and Control:

Air compressors are used for instrumentation and control purposes in mining operations. Compressed air is utilized to power pneumatic control systems, control valves, and actuators. These systems regulate the flow of fluids, control equipment movements, and ensure the proper functioning of various mining processes.

6. Explosive Applications:

In mining, air compressors are used for explosive applications. Compressed air is employed to power pneumatic tools used for rock fragmentation, such as rock drills and pneumatic breakers. The controlled power of compressed air enables safe and efficient rock breaking without the need for traditional explosives.

7. Maintenance and Repair:

Air compressors are essential for maintenance and repair activities in the mining industry. Compressed air is used for cleaning machinery, removing debris, and powering pneumatic tools for equipment maintenance and repair tasks. The versatility and portability of air compressors make them valuable assets in maintaining mining equipment.

It is important to note that different mining operations may have specific requirements and considerations when selecting and using air compressors. The size, capacity, and features of air compressors can vary based on the specific mining application and environmental conditions.

By utilizing air compressors effectively, the mining industry can benefit from increased productivity, improved safety, and efficient operation of various mining processes.

air compressor

What is the difference between a piston and rotary screw compressor?

Piston compressors and rotary screw compressors are two common types of air compressors with distinct differences in their design and operation. Here’s a detailed explanation of the differences between these two compressor types:

1. Operating Principle:

  • Piston Compressors: Piston compressors, also known as reciprocating compressors, use one or more pistons driven by a crankshaft to compress air. The piston moves up and down within a cylinder, creating a vacuum during the intake stroke and compressing the air during the compression stroke.
  • Rotary Screw Compressors: Rotary screw compressors utilize two intermeshing screws (rotors) to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads.

2. Compression Method:

  • Piston Compressors: Piston compressors achieve compression through a positive displacement process. The air is drawn into the cylinder and compressed as the piston moves back and forth. The compression is intermittent, occurring in discrete cycles.
  • Rotary Screw Compressors: Rotary screw compressors also employ a positive displacement method. The compression is continuous as the rotating screws create a continuous flow of air and compress it gradually as it moves along the screw threads.

3. Efficiency:

  • Piston Compressors: Piston compressors are known for their high efficiency at lower flow rates and higher pressures. They are well-suited for applications that require intermittent or variable air demand.
  • Rotary Screw Compressors: Rotary screw compressors are highly efficient for continuous operation and are designed to handle higher flow rates. They are often used in applications with a constant or steady air demand.

4. Noise Level:

  • Piston Compressors: Piston compressors tend to generate more noise during operation due to the reciprocating motion of the pistons and valves.
  • Rotary Screw Compressors: Rotary screw compressors are generally quieter in operation compared to piston compressors. The smooth rotation of the screws contributes to reduced noise levels.

5. Maintenance:

  • Piston Compressors: Piston compressors typically require more frequent maintenance due to the higher number of moving parts, such as pistons, valves, and rings.
  • Rotary Screw Compressors: Rotary screw compressors have fewer moving parts, resulting in lower maintenance requirements. They often have longer service intervals and can operate continuously for extended periods without significant maintenance.

6. Size and Portability:

  • Piston Compressors: Piston compressors are available in both smaller portable models and larger stationary units. Portable piston compressors are commonly used in construction, automotive, and DIY applications.
  • Rotary Screw Compressors: Rotary screw compressors are typically larger and more suitable for stationary installations in industrial and commercial settings. They are less commonly used in portable applications.

These are some of the key differences between piston compressors and rotary screw compressors. The choice between the two depends on factors such as required flow rate, pressure, duty cycle, efficiency, noise level, maintenance needs, and specific application requirements.

China best Variable Frequency Drive CHINAMFG Type Low Price Durable Screw Air Compressor   best air compressorChina best Variable Frequency Drive CHINAMFG Type Low Price Durable Screw Air Compressor   best air compressor
editor by CX 2023-10-26