Product Description
Reciprocating Micro-oil/ oil-free Piston Compressor
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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.;
6. Safety 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.
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 |
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| After-sales Service: | 18 Months |
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| Warranty: | 18 Months |
| Lubrication Style: | Oil-free |
| Cooling System: | Air Cooling |
| Cylinder Arrangement: | Balanced Opposed Arrangement |
| Cylinder Position: | Vertical |
| Customization: |
Available
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Can Oil-Free Air Compressors Handle High-Pressure Applications?
Yes, oil-free air compressors are capable of handling high-pressure applications, but certain considerations need to be taken into account. Here’s a detailed explanation of the capabilities and considerations regarding the use of oil-free air compressors in high-pressure applications:
1. Compressor Design:
Oil-free air compressors are designed to deliver oil-free compressed air, and some models are specifically engineered to handle high-pressure requirements. These compressors incorporate robust components, such as high-strength materials, reinforced valves, and advanced sealing technologies, to withstand the higher pressures generated during compression. They are typically designed to operate within specific pressure ranges, and their performance and reliability are optimized for those ranges.
2. Pressure Rating:
When selecting an oil-free air compressor for a high-pressure application, it is crucial to consider the compressor’s pressure rating. The pressure rating indicates the maximum pressure that the compressor can reliably generate and maintain. Oil-free compressors suitable for high-pressure applications are available with varying pressure ratings, ranging from several hundred PSI (pounds per square inch) to several thousand PSI, depending on the specific model and manufacturer. It’s important to choose a compressor with a pressure rating that meets or exceeds the requirements of the intended application.
3. Operating Efficiency:
Operating efficiency is an important consideration when using oil-free air compressors for high-pressure applications. As the pressure requirement increases, the compressor may consume more energy to achieve and maintain the desired pressure. It’s advisable to select a compressor that is optimized for energy efficiency, as it can help reduce operating costs and minimize environmental impact. Compressors equipped with advanced control systems, variable speed drives, and efficient motor designs can enhance overall energy efficiency in high-pressure applications.
4. Air Treatment and Filtration:
High-pressure applications often require dry and clean compressed air. In addition to the oil-free operation, it is important to ensure that the compressed air is adequately treated and filtered to remove moisture, particulates, and other contaminants. The use of appropriate air dryers, filters, and separators in the compressed air system is necessary to maintain the desired air quality and protect downstream equipment in high-pressure applications.
5. System Safety and Regulations:
High-pressure applications present additional safety considerations. It is essential to ensure that the entire compressed air system, including the compressor, storage tanks, piping, and safety devices, is designed, installed, and operated in compliance with relevant safety regulations and standards. Pressure relief valves, pressure gauges, and other safety devices should be appropriately sized and configured to handle the high-pressure conditions. Regular inspections, maintenance, and adherence to safety protocols are crucial to ensure the safe operation of the high-pressure oil-free air compressor system.
It’s important to consult with compressor manufacturers or industry experts to determine the suitability of specific oil-free compressors for high-pressure applications. They can provide guidance on selecting the right compressor model, assessing system requirements, and ensuring compliance with safety standards.
By considering the design, pressure rating, operating efficiency, air treatment, and system safety, oil-free air compressors can successfully handle high-pressure applications in various industries, including manufacturing, automotive, aerospace, and energy.
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What Is the Impact of Oil-Free Technology on Compressed Air Quality?
The use of oil-free technology in compressed air systems has a significant impact on ensuring high-quality compressed air. Here’s a detailed explanation of the impact of oil-free technology on compressed air quality:
1. Elimination of Oil Contamination:
Oil-free technology ensures that the compressed air produced is free from oil contamination. Traditional compressors that use oil lubrication can introduce oil particles, aerosols, and vapors into the compressed air stream. These oil contaminants can have detrimental effects on downstream equipment, processes, and products. By eliminating oil from the compression process, oil-free technology helps maintain the purity and cleanliness of the compressed air, ensuring that it meets the required air quality standards.
2. Avoidance of Oil-Related Issues:
Oil contamination in compressed air systems can lead to various issues. Oil can cause damage to pneumatic equipment, valves, and seals, resulting in reduced efficiency and increased maintenance costs. It can also lead to product contamination in industries such as food and beverage, pharmaceuticals, and electronics manufacturing. Oil-free technology eliminates the risks associated with oil-related issues, ensuring that the compressed air remains clean, dry, and suitable for sensitive applications.
3. Enhanced Air Purity:
Oil-free compressors are designed with advanced filtration systems to further enhance air purity. These filtration systems typically include pre-filters, coalescing filters, and activated carbon filters. Pre-filters remove larger particles, coalescing filters capture smaller particles and coalesce water vapor, and activated carbon filters absorb odors and remaining oil vapors. By incorporating such filtration stages, oil-free technology ensures that the compressed air is free from particulate matter, moisture, odors, and residual oil content, resulting in higher air purity levels.
4. Compliance with Air Quality Standards:
Oil-free technology helps compressed air systems comply with air quality standards and regulations. Standards such as ISO 8573 specify acceptable limits for contaminants in compressed air, including oil content, particulate matter, and moisture. Oil-free compressors, with their ability to produce clean and oil-free compressed air, facilitate compliance with these standards. This is particularly crucial in industries where air quality is critical, such as healthcare, pharmaceuticals, electronics, and food processing.
5. Protection of Sensitive Applications:
Many applications require clean and uncontaminated compressed air to ensure optimal performance and product integrity. Oil-free technology provides the necessary assurance of air quality for these sensitive applications. Industries such as medical devices, laboratory testing, spray painting, and semiconductor manufacturing rely on oil-free compressed air to prevent contamination, maintain precise operation, and achieve consistent results. The use of oil-free technology safeguards the reliability and integrity of these applications.
6. Reduced Maintenance and Downtime:
Oil-free compressors generally require less maintenance compared to oil-lubricated compressors. The absence of oil eliminates the need for oil changes, oil filters, and associated maintenance tasks. This results in reduced maintenance costs, less downtime, and increased productivity. Additionally, the risk of oil-related failures and breakdowns is minimized, leading to improved overall system reliability and uptime.
In summary, oil-free technology has a significant positive impact on compressed air quality. It eliminates oil contamination, avoids oil-related issues, enhances air purity, facilitates compliance with air quality standards, protects sensitive applications, and reduces maintenance and downtime. These benefits make oil-free technology a preferred choice in industries where clean and high-quality compressed air is essential.
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What Industries Commonly Use Oil-Free Air Compressors?
Oil-free air compressors are utilized in various industries where clean and oil-free compressed air is essential for specific applications. These industries rely on oil-free compressors to ensure product quality, maintain equipment integrity, and meet industry regulations. Here’s a detailed explanation of the industries commonly using oil-free air compressors:
1. Food and Beverage:
The food and beverage industry extensively employs oil-free air compressors. These compressors are used in processes such as food packaging, filling, bottling, and product drying. Oil-free compressors prevent oil contamination, ensuring product quality, food safety, and compliance with industry regulations. They help maintain the freshness of food products, prevent flavor or odor contamination, and minimize the risk of product spoilage.
2. Pharmaceutical and Healthcare:
In the pharmaceutical and healthcare sectors, oil-free air compressors are vital for maintaining the purity and integrity of medical gases, powering respiratory devices, and supporting laboratory applications. Oil-free compressors deliver clean and uncontaminated compressed air for critical processes, such as ventilators, nebulizers, surgical instruments, dental tools, and laboratory testing. They ensure patient safety, regulatory compliance, and reliable operation in these sensitive environments.
3. Electronics and Semiconductor:
The electronics and semiconductor industries require oil-free air compressors for various applications. These compressors are used in cleanrooms and manufacturing processes where air quality is crucial to prevent contamination of sensitive electronic components. Oil-free compressors provide clean and dry compressed air for applications like chip manufacturing, circuit board assembly, and air knife systems. They help ensure the reliability and quality of electronic products while minimizing the risk of particle contamination.
4. Automotive and Aerospace:
In the automotive and aerospace industries, oil-free air compressors are utilized for painting, coating, and pneumatic tools. These compressors deliver clean, oil-free compressed air, ensuring high-quality finishes and preventing oil contamination that could affect adhesion or cause defects. Oil-free compressors play a critical role in maintaining the precision and reliability of pneumatic tools used in assembly lines, manufacturing processes, and aircraft maintenance.
5. Textile and Garment:
The textile and garment industries rely on oil-free air compressors for various applications, including powering pneumatic tools, air agitation in dyeing processes, and providing clean compressed air for textile manufacturing. Oil-free compressors prevent oil contamination that could stain or damage fabrics, ensuring product quality and minimizing the risk of production defects. They help maintain efficiency and reliability in textile production while meeting strict quality standards.
6. Chemical and Petrochemical:
The chemical and petrochemical industries utilize oil-free air compressors in critical processes where air purity is essential. These compressors are used in applications such as air sparging, pneumatic conveying, and instrument air supply. Oil-free compressors ensure that the compressed air does not introduce contaminants, ensuring the integrity of chemical reactions, preventing product contamination, and maintaining the safety of equipment and personnel.
7. Research and Laboratories:
Research facilities and laboratories across various industries rely on oil-free air compressors for a wide range of applications. These include air supply for analytical instruments, sample preparation, cell culture, and other research processes. Oil-free compressors provide clean and reliable compressed air, ensuring accurate test results, preventing contamination, and maintaining the integrity of samples and experiments.
It’s important to note that while these industries commonly use oil-free air compressors, the specific requirements may vary based on the application and industry standards. Selecting the appropriate oil-free compressor and adhering to recommended maintenance practices are crucial to achieve optimal performance and meet industry-specific needs.
editor by CX 2024-05-03