China manufacturer Oil-Free CNG Compressor for High Pressure Methane/Natural Gas air compressor portable

Product Description

Reciprocating Oil-free Piston Compressor
Oil-Free CNG Compressor for High Pressure Methane/Natural Gas

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Our company specialize in making various kinds of compressors, such as:Diaphragm compressor,Piston compressor, Air compressors,Nitrogen generator,Oxygen generator ,Gas cylinder,etc. All products can be customized according to your parameters and other requirements.

This series of oil-free compressor is one of the first products produced by our factory in China. The product has the characteristics of low speed, high component strength, stable operation, long service life and convenient maintenance. This series compressor is in the form of unit. It integrates compressor, gas-liquid separator, filter, 2 position four-way valve, safety valve, check valve, explosion-proof motor and chassis. The utility model has the advantages of small volume, light weight, low noise, good sealing performance, easy installation, simple operation, etc.

Main components
1.  Motion system: crankshaft, piston connecting rod assembly, coupling, etc.
2.  Air distribution system: valve plate, valve spring, etc.
3. Sealing system: piston ring, oil seal, gasket, packing, etc.

4. Body system: crankcase, cylinder block, cylinder liner, cover plate, etc.
5. Lubrication system: lubricating oil pump, oil filter, pressure regulating valve, etc.;
6Safety and energy regulation systems: safety valves, energy regulation devices, etc.
Working principle of piston compressor
When the crankshaft of the piston compressor rotates, the piston will reciprocate through the transmission of the connecting rod, and the working volume formed by the inner wall of the cylinder, the cylinder head and the top surface of the piston will periodically change. When the piston of a piston compressor starts to move from the cylinder head, the working volume in the cylinder gradually increases. At this time, the gas flows along the intake pipe and pushes the intake valve to enter the cylinder until the working volume reaches the maximum. , The intake valve is closed; when the piston of the piston compressor moves in the reverse direction, the working volume in the cylinder is reduced, and the gas pressure is increased. When the pressure in the cylinder reaches and is slightly higher than the exhaust pressure, the exhaust valve opens and the gas is discharged from the cylinder , Until the piston moves to the limit position, the exhaust valve is closed. When the piston of the piston compressor moves in the reverse direction again, the above process repeats. In short, the crankshaft of a piston compressor rotates once, the piston reciprocates once, and the process of air intake, compression, and exhaust is realized in the cylinder, which completes a work cycle.
Advantages of piston compressor
1. The applicable pressure range of the piston compressor is wide, and the required pressure can be reached regardless of the flow rate;
2. The piston compressor has high thermal efficiency and low unit power consumption;
3. Strong adaptability, that is, a wide exhaust range, and is not affected by the pressure level, and can adapt to a wider pressure range and cooling capacity requirements;
4. Piston compressors have low requirements for materials, and use common steel materials, which is easier to process and lower in cost;
5. The piston compressor is relatively mature in technology, and has accumulated rich experience in production and use;
6. The device system of the piston compressor is relatively simple.

Note: In the unloading process, the compressor pressurizes the gas from the storage tank and then presses it into the tank car through the gas-phase pipeline, and presses the liquid from the tank car to the storage tank through the gas-phase differential pressure to complete the unloading process. When the gas phase is pressurized, the temperature of the gas phase will rise. At this time, forced cooling is not necessary, because if the gas phase is compressed and then cooled, it is easy to liquefy, and it is difficult to establish the pressure difference of the gas phase, which is not conducive to the replacement of the gas phase and the liquid phase. In short, it will cause the prolongation of the unloading process. If it is necessary to recover the residual gas, the cooler can be selected to forcibly cool the gas phase during the recovery operation, so as to recover the residual gas as soon as possible.The loading process is opposite to the unloading process.

Chemical Process Compressor Description 
Chemical process compressors refer to process reciprocating piston compressors used to compress various single or mixed media gases in petroleum and chemical processes, as well as chemical exhaust gas recycling systems. Its main function is to transport the medium gas in the reaction device and provide the required pressure to the reaction device. Features 1. Designed for specific process flow. 2. The whole machine is skid-mounted and advanced in structure. 3. The compressor types are: Z type, D type, M type. 4. The middle body of the slideway and the cylinder can be designed in different structural forms according to the process requirements.
Customized is accepted , Pls provide the following information to us :
1.Flow rate:  _______Nm3/h
2.Gas Media : ______ Hydrogen or Natural Gas or Oxygen or other gas ?
3.Inlet pressure: ___bar(g)
4.Inlet temperature:_____ºC
5.Outlet pressure:____bar(g)
6.Outlet temperature:____ºC
7.Installation location: _____indoor or outdoor?
8.Location ambient temperature: ____ºC
9.Power supply:  _V/  _Hz/ _3Ph?
10.Cooling method for gas: air cooling or water cooing?
Wide variety and types of diaphragm compressor can be manufactured by our company such as hydrogen compressor , nitrogen compressor , helium compressor , natural gas compressor and etc .
Outlet pressure at 50bar 200 bar, 350 bar (5000 psi), 450 bar, 500 bar, 700 bar (10,000 psi), 900 bar (13,000 psi) and other pressure can be customized .

Reference Technical parameters and specifications

  Model Volume flow(Nm3/h) Suction pressure(Mpa) Exhaust pressure (Mpa) Motor power(kw) Dimension (mm)
1 ZW-0.4/ 2-250 60 0.2 25 18.5 2800*2200*1600
2 ZW-0.81/ (1~3)-25 120 0.1~0.3 2.5 22 1000*580*870
3 DW-5.8/0.5-5 400~500 0.05 0.5 37 2000*1600*1200
4 DW-10/2 510 Atmospheric pressure 0.2 37 2000*1600*1200
5 DW-6.0/5 300 Atmospheric pressure 0.5 37 2000*1600*1200
6 DW-0.21/(20~30)-250 270 2~3 25 45 3200*2200*1600
7 ZW-0.16/60-250 480 6 25 45 3000*2200*1600
8 ZW-0.46 /(5~10)-250 200 0.5~1.0 25 45 3000*2200*1600
9 DW-1.34/2-250 208 0.2 25 55 3400*2200*1600
10 DW-0.6/24-85 720 2.4 8.5 55 2200*1600*1200
11 ZW-2.9/14.2-20 220 1.42 2 55 2200*1600*1200
12 VW-2.0/(2~4)-25 410 0.2~0.4 2.5 55 3400*2200*1600
13 DW-0.85/(3~4)-250 180 0.3~0.4 25 55 2400*1800*1500
14 DW-25-(0.2~0.3)-1.5 1620 0.02~0.03 0.15 75 2400*1800*1500
15 VW-8.0/0.3-25 540 0.03 2.5 90 2400*1800*1500
16 DW-6.8/0.05-40 200~400 0.005 4 90 2400*1800*1500

Workshop of natural gas compressor 
Our products 
Our Certificate : CE and ISO certification
Our exhibition for the gas compressor 
Our Certificate : CE and ISO certification

Our Service for diaphragm compressor : 
1.Service time : 24*7 Hours
2.Customized Service 
3.Perfect pre-sale,sale,after-sales service
4.FAT
5.Onsite commissioning Service
6.18 months warranty period

FAQ :
Q1.How about your after-sales service?
A: 1. Provide customers with intallation and commissioning online instructions.
2. Well-trained engineers available to overseas after-sales service.

Q2.What’s payment term?
A: T/T, L/C, D/P, Western Union, Trade Assurance and etc. Also we could accept USD, RMB, GBP, Euro and other currency.

Q3 : How long is your air compressor warranty?
A: Usually 1 year /12 Months for whole compressor machine, 2years/24months for air end (except maintenance spare parts.). And we can provide further warranty if necessary. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 18 Months
Warranty: 18 Months
Lubrication Style: Oil-free
Cooling System: Air Cooling
Cylinder Arrangement: Balanced Opposed Arrangement
Cylinder Position: Horizontal
Customization:
Available

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air compressor

Can Gas Air Compressors Be Used in Construction Projects?

Gas air compressors are widely used in construction projects due to their portability, versatility, and ability to provide the necessary compressed air for various applications. They are an essential tool in the construction industry, enabling the efficient and effective operation of pneumatic tools and equipment. Here’s a detailed explanation of how gas air compressors are used in construction projects:

1. Powering Pneumatic Tools:

Gas air compressors are commonly used to power a wide range of pneumatic tools on construction sites. These tools include jackhammers, nail guns, impact wrenches, concrete breakers, air drills, sanders, grinders, and paint sprayers. The compressed air generated by the gas air compressor provides the necessary force and power for efficient operation of these tools, enabling tasks such as concrete demolition, fastening, surface preparation, and finishing.

2. Air Blow and Cleaning Operations:

In construction projects, there is often a need to clean debris, dust, and dirt from work areas, equipment, and surfaces. Gas air compressors are used to generate high-pressure air for air blow and cleaning operations. This helps maintain cleanliness, remove loose materials, and prepare surfaces for further work, such as painting or coating.

3. Operating Pneumatic Systems:

Gas air compressors are employed to operate various pneumatic systems in construction projects. These systems include pneumatic control devices, pneumatic cylinders, and pneumatic actuators. Compressed air from the gas air compressor is used to control the movement of equipment, such as gates, doors, and barriers, as well as to operate pneumatic lifts, hoists, and other lifting mechanisms.

4. Concrete Spraying and Shotcreting:

Gas air compressors are utilized in concrete spraying and shotcreting applications. Compressed air is used to propel the concrete mixture through a nozzle at high velocity, ensuring proper adhesion and distribution on surfaces. This technique is commonly employed in applications such as tunnel construction, slope stabilization, and repair of concrete structures.

5. Sandblasting and Surface Preparation:

In construction projects that require surface preparation, such as removing old paint, rust, or coatings, gas air compressors are often used in conjunction with sandblasting equipment. Compressed air powers the sandblasting process, propelling abrasive materials such as sand or grit onto the surface to achieve effective cleaning and preparation before applying new coatings or finishes.

6. Tire Inflation and Equipment Maintenance:

Gas air compressors are utilized for tire inflation and equipment maintenance on construction sites. They provide compressed air for inflating and maintaining proper tire pressure in construction vehicles and equipment. Additionally, gas air compressors are used for general equipment maintenance, such as cleaning, lubrication, and powering pneumatic tools for repair and maintenance tasks.

7. Portable and Remote Operations:

Gas air compressors are particularly beneficial in construction projects where electricity may not be readily available or feasible. Portable gas air compressors provide the flexibility to operate in remote locations, allowing construction crews to utilize pneumatic tools and equipment without relying on a fixed power source.

Gas air compressors are an integral part of construction projects, facilitating a wide range of tasks and enhancing productivity. Their ability to power pneumatic tools, operate pneumatic systems, and provide compressed air for various applications makes them essential equipment in the construction industry.

air compressor

Can Gas Air Compressors Be Used for Sandblasting?

Yes, gas air compressors can be used for sandblasting. Sandblasting is a process that involves propelling abrasive materials, such as sand or grit, at high speeds to clean, etch, or prepare surfaces. Here’s a detailed explanation:

1. Compressed Air Requirement:

Sandblasting requires a reliable source of compressed air to propel the abrasive material. Gas air compressors, particularly those powered by gasoline or diesel engines, can provide the necessary compressed air for sandblasting operations. The compressors supply a continuous flow of compressed air at the required pressure to propel the abrasive material through the sandblasting equipment.

2. Portable and Versatile:

Gas air compressors are often portable and can be easily transported to different job sites, making them suitable for sandblasting applications in various locations. The portability of gas air compressors allows flexibility and convenience, especially when sandblasting needs to be performed on large structures, such as buildings, tanks, or bridges.

3. Pressure and Volume:

When selecting a gas air compressor for sandblasting, it is essential to consider the required pressure and volume of compressed air. Sandblasting typically requires higher pressures to effectively propel the abrasive material and achieve the desired surface treatment. Gas air compressors can provide higher pressure outputs compared to electric compressors, making them well-suited for sandblasting applications.

4. Compressor Size and Capacity:

The size and capacity of the gas air compressor should be chosen based on the specific requirements of the sandblasting project. Factors to consider include the size of the sandblasting equipment, the length of the air hose, and the desired duration of continuous operation. Selecting a gas air compressor with an appropriate tank size and airflow capacity ensures a consistent supply of compressed air during sandblasting.

5. Maintenance Considerations:

Regular maintenance is crucial for gas air compressors used in sandblasting applications. The abrasive nature of the sand or grit used in sandblasting can introduce particles into the compressor system, potentially causing wear or clogging. Regular inspection, cleaning, and maintenance of the compressor, including filters, valves, and hoses, help prevent damage and ensure optimal performance.

6. Safety Precautions:

When using gas air compressors for sandblasting, it is essential to follow appropriate safety precautions. Sandblasting generates airborne particles and dust, which can be hazardous if inhaled. Ensure proper ventilation, wear appropriate personal protective equipment (PPE), such as respiratory masks, goggles, and protective clothing, and follow recommended safety guidelines to protect the operator and others in the vicinity.

In summary, gas air compressors can be effectively used for sandblasting applications. They provide the necessary compressed air to propel abrasive materials, offer portability and versatility, and can deliver the required pressure and volume for efficient sandblasting operations. Proper compressor selection, maintenance, and adherence to safety precautions contribute to successful and safe sandblasting processes.

air compressor

How Does a Gas Air Compressor Work?

A gas air compressor works by utilizing a gas engine to power a compressor pump, which draws in air and compresses it to a higher pressure. The compressed air can then be used for various applications. Here’s a detailed explanation of how a gas air compressor operates:

1. Gas Engine:

A gas air compressor is equipped with a gas engine as its power source. The gas engine is typically fueled by gasoline, diesel, natural gas, or propane. When the engine is started, the fuel is combusted within the engine’s cylinders, generating mechanical energy in the form of rotational motion.

2. Compressor Pump:

The gas engine drives the compressor pump through a mechanical linkage, such as a belt or direct coupling. The compressor pump is responsible for drawing in atmospheric air and compressing it to a higher pressure. There are different types of compressor pumps used in gas air compressors, including reciprocating, rotary screw, or centrifugal, each with its own operating principles.

3. Intake Stroke:

In a reciprocating compressor pump, the intake stroke begins when the piston moves downward within the cylinder. This creates a vacuum, causing the inlet valve to open and atmospheric air to be drawn into the cylinder. In rotary screw or centrifugal compressors, air is continuously drawn in through the intake port as the compressor operates.

4. Compression Stroke:

During the compression stroke in a reciprocating compressor, the piston moves upward, reducing the volume within the cylinder. This compression action causes the air to be compressed and its pressure to increase. In rotary screw compressors, two interlocking screws rotate, trapping and compressing the air between them. In centrifugal compressors, air is accelerated and compressed by high-speed rotating impellers.

5. Discharge Stroke:

Once the air is compressed, the discharge stroke begins in reciprocating compressors. The piston moves upward, further reducing the volume and forcing the compressed air out of the cylinder through the discharge valve. In rotary screw compressors, the compressed air is discharged through an outlet port as the interlocking screws continue to rotate. In centrifugal compressors, the high-pressure air is discharged from the impeller into the surrounding volute casing.

6. Pressure Regulation:

Gas air compressors often include pressure regulation mechanisms to control the output pressure of the compressed air. This can be achieved through pressure switches, regulators, or control systems that adjust the compressor’s operation based on the desired pressure setting. These mechanisms help maintain a consistent and controlled supply of compressed air for the specific application requirements.

7. Storage and Application:

The compressed air produced by the gas air compressor is typically stored in a receiver tank or used directly for applications. The receiver tank helps stabilize the pressure and provides a reservoir of compressed air for immediate use. From the receiver tank, the compressed air can be distributed through pipelines to pneumatic tools, machinery, or other devices that require the compressed air for operation.

Overall, a gas air compressor operates by using a gas engine to power a compressor pump, which draws in air and compresses it to a higher pressure. The compressed air is then regulated and used for various applications, providing a reliable source of power for pneumatic tools, machinery, and other equipment.

China manufacturer Oil-Free CNG Compressor for High Pressure Methane/Natural Gas   air compressor portableChina manufacturer Oil-Free CNG Compressor for High Pressure Methane/Natural Gas   air compressor portable
editor by CX 2024-05-03

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