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Quanwei Machinery Group (Jiangsu) Co., Ltd. is referred to as Quanwei Machinery for short. The company's main brands are Quanwei and Yongying. Quanwei Machinery Factory was established in 1986 and is located in Lingya District, Kaohsiung City, Taiwan. It is a comprehensive screw compressor manufacturer with research and development, design, production and sales. Quan Wei established a company in Suzhou in 2013, with a factory building of 28,000 square meters, including large-scale production workshops, showrooms and quality testing laboratories.
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Quanwei Machinery Group (Jiangsu) Co., Ltd. is referred to as Quanwei Machinery for short. The company's main brands are Quanwei and Yongying. Quanwei Machinery Factory was established in 1986 and is located in Lingya District, Kaohsiung City, Taiwan. It is a comprehensive screw compressor manufacturer with research and development, design, production and sales.
  • Troubleshooting Low Temperature Startup Issues in Screw Air Compressors
    04 2023.10
    Troubleshooting Low Temperature Startup Issues in Screw Air Compressors

    Screw air compressors are widely used in various industries due to their efficiency and reliability.  However, in cold weather conditions, these machines may encounter difficulties in starting up.  In this article, we will explore the reasons behind the low temperature startup issues in screw air compressors and provide some troubleshooting tips. 1.  Insufficient Lubrication: One common cause of low temperature startup problems in screw air compressors is inadequate lubrication.  In cold temperatures, the oil viscosity increases, making it difficult for the lubricant to flow smoothly.  This can result in excessive friction and resistance, preventing the compressor from starting.  To address this issue, it is crucial to use a lubricant specifically designed for low-temperature applications.  These lubricants have lower viscosity and can flow easily, ensuring proper lubrication and smooth startup even in cold conditions.   2.  Moisture Accumulation: Another factor that affects the startup of screw air compressors in low temperatures is the accumulation of moisture.  Cold air can condense moisture, leading to the formation of ice or frost inside the compressor.  This can cause blockages and hinder the movement of components, resulting in startup issues.  To prevent moisture accumulation, it is essential to install a moisture separator or dryer in the air intake system.  These devices remove moisture from the air before it enters the compressor, reducing the risk of ice formation and ensuring smooth startup.   3.  Insufficient Warm-up Time: In extremely low temperatures, screw air compressors may require a longer warm-up time before starting.  Cold temperatures can affect the performance of various components, such as the motor and valves, making it necessary to allow them sufficient time to reach the optimum operating temperature.  It is recommended to follow the manufacturer's guidelines regarding warm-up time in cold weather conditions.  Providing adequate warm-up time ensures that all components are functioning properly, reducing the chances of startup issues.   4.  Electrical System Issues: Cold weather can also have adverse effects on the electrical system of screw air compressors.  Low temperatures can cause the electrical connections to become brittle and prone to breakage.  Additionally, cold weather can lead to a decrease in battery performance, affecting the starting process.  To avoid electrical system issues, it is crucial to inspect and maintain all electrical connections regularly.  Keeping the electrical system properly insulated and protected from the elements can help prevent startup problems.   Conclusion: Permanent magnet variable screw air compressors are essential equipment in various industries, but low temperature startup issues can hinder their performance.  By addressing factors such as insufficient lubrication, moisture accumulation, insufficient warm-up time, and electrical system issues, operators can ensure smooth startup even in cold weather conditions.  Regular maintenance, following manufacturer guidelines, and using appropriate lubricants and moisture separators are key to avoiding these problems.  By implementing these measures, the efficiency and reliability of screw air compressors can be maintained throughout the year.

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  • Screw type air compressor oil leakage fault judgment and elimination method
    23 2023.08
    Screw type air compressor oil leakage fault judgment and elimination method

    Introduction: Screw air compressors are widely used in various industries, thanks to their efficiency and reliability. However, one common issue that can arise is oil leakage. This article aims to provide a brief guide for diagnosing and resolving oil leakage problems in screw air compressors.   Identify the Problem: 1. Visual Inspection: Begin by examining the compressor for any visible signs of oil leakage. Check the compressor body, oil filter, hoses, and fittings for any oil stains or drips. 2. Monitor Oil Consumption: Keep track of the compressor's oil consumption. If you notice a sudden increase or irregular oil consumption, it could be an indication of a leak.   Potential Causes: 1. Faulty Gaskets or Seals: Damaged or worn-out gaskets and seals can lead to oil leakage. Inspect and replace any faulty components. 2. Loose Connections: Loose fittings and connections can cause oil to leak. Ensure all connections are properly tightened and secure. 3. Damaged Oil Cooler: A damaged or clogged oil cooler can result in excessive pressure, leading to oil leakage. Clean or replace the oil cooler as necessary. 4. Overfilled Oil Level: Overfilled oil levels can cause oil to escape through various openings. Check the oil level and drain any excess oil if necessary.   Troubleshooting and Remedies: 1. Tightening Connections: Carefully inspect all connections and fittings, including hoses, pipes, and joints. Use appropriate tools to tighten any loose connections. 2. Gasket and Seal Replacement: If gaskets or seals are damaged, replace them with new ones of the correct size and material. 3. Clean or Replace Oil Cooler: If the oil cooler is clogged or damaged, clean it thoroughly or replace it with a new one to restore proper functioning. 4. Check Oil Level: Ensure that the oil level is within the recommended range. If it is overfilled, drain the excess oil carefully. 5. Regular Maintenance: Implement a regular maintenance schedule to identify and address potential oil leakage issues before they become major problems. This includes checking oil levels, inspecting connections, and replacing oil filters as recommended by the manufacturer.   Conclusion: Diagnosing and resolving oil leakage in screw air compressors is essential for maintaining their efficiency and prolonging their lifespan. By following the suggested troubleshooting steps and conducting regular maintenance, you can effectively identify and rectify oil leakage issues, ensuring uninterrupted operation of your screw air compressor. Remember, if the problem persists or if you are unsure about the necessary steps, it is always advisable to consult a professional technician.

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  • Introducing the Energy-efficient Water Lubricated Oil-free Variable Frequency Screw Air Compressor
    23 2023.08
    Introducing the Energy-efficient Water Lubricated Oil-free Variable Frequency Screw Air Compressor

    Are you looking for an efficient and eco-friendly solution for your compressed air needs?  Look no further!  We are thrilled to introduce the energy-efficient water lubricated oil-free variable frequency screw air compressor – a game-changer in the field of industrial air compressors.   This cutting-edge technology combines the benefits of water lubrication and oil-free operation, making it the perfect choice for industries aiming to minimize their environmental impact.  By eliminating the need for oil lubrication, this compressor significantly reduces the release of harmful emissions and eliminates the risk of oil contamination in the compressed air.   One of the standout features of this compressor is its variable frequency drive system.  This innovative technology adjusts the compressor's speed according to the air demand, providing unparalleled energy efficiency.  Unlike traditional compressors that operate at a constant speed, the variable frequency drive system allows for precise control of the air output, resulting in substantial energy savings and reduced operational costs.   In addition to its environmental and energy-saving benefits, this compressor stands out for its exceptional performance.  With superior design and engineering, it delivers a consistent and reliable supply of compressed air, ensuring optimal productivity in various industrial applications.   The water lubrication system employed in this compressor provides several advantages.  Firstly, it eliminates the need for conventional oil filters, simplifying maintenance procedures and reducing associated costs.  Secondly, water acts as a natural cooling agent, ensuring efficient heat dissipation and prolonging the lifespan of the compressor.  Lastly, the absence of oil lubrication eliminates the need for oil changes, further reducing maintenance requirements.   Furthermore, this compressor is designed with user-friendliness in mind.  Its intuitive control panel allows for easy operation and monitoring of essential parameters.  The compact design and low noise levels make it suitable for a wide range of installation environments, ensuring minimal disruption to daily operations.   In conclusion, the energy-efficient water lubricated oil-free variable frequency screw air compressor is a remarkable innovation in the field of compressed air technology.  With its eco-friendly operation, energy efficiency, and exceptional performance, it is undoubtedly an ideal choice for industries seeking to enhance productivity while minimizing their carbon footprint.  Upgrade to this advanced compressor today and experience the future of compressed air technology.

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  • The Application Environment of Oil-Free Air Compressors in the Food Industry
    23 2023.08
    The Application Environment of Oil-Free Air Compressors in the Food Industry

    The food industry has stringent requirements when it comes to maintaining hygiene and product quality.     In this regard, the use of oil-free air compressors has become increasingly prevalent.     These specialized machines provide a clean and reliable source of compressed air, ensuring a safe and contaminant-free environment throughout the food production process. 1.     Ensuring Food Safety: Oil-free air compressors are essential in maintaining the highest standards of food safety.     Unlike traditional compressors, which use oil lubrication, oil-free compressors eliminate the risk of oil contamination in the compressed air.     This prevents any potential contact between oil particles and food products, reducing the chances of contamination and ensuring the safety of consumers.   2.     Preserving Product Quality: In the food industry, maintaining product quality is crucial.     Oil-free air compressors play a vital role in preserving the integrity of food products.     By eliminating oil contaminants, these compressors ensure that the compressed air used in various processes, such as packaging and filling, does not affect the taste, texture, or appearance of the final product.     This helps food manufacturers deliver consistent and high-quality products to their customers.   3.     Enhancing Production Efficiency: Oil-free air compressors offer several advantages that contribute to enhanced production efficiency in the food industry.     Firstly, their clean and contaminant-free compressed air reduces the risk of equipment breakdowns, minimizing downtime and increasing productivity.     Secondly, oil-free compressors require less maintenance compared to traditional compressors, resulting in lower maintenance costs and fewer production interruptions.   4.     Meeting Regulatory Standards: The food industry is subject to strict regulations and guidelines to ensure consumer safety.     Oil-free air compressors align with these regulations and standards, making them an ideal choice for food processing facilities.     By using oil-free compressors, food manufacturers can demonstrate their commitment to compliance and meet the stringent criteria set by regulatory bodies.   Conclusion: In the food industry, maintaining a clean and contaminant-free environment is of utmost importance.     Oil-free air compressors have emerged as a reliable solution in ensuring food safety, preserving product quality, enhancing production efficiency, and meeting regulatory standards.     By adopting these specialized machines, food manufacturers can safeguard their reputation, protect consumer health, and deliver high-quality products that meet the expectations of today's discerning consumers.

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Quanwei Machinery Group (Jiangsu) Co., Ltd. is referred to as Quanwei Machinery for short. The company's main brands are Quanwei and Yongying. Quanwei Machinery Factory was established in 1986 and is located in Lingya District, Kaohsiung City
  • Steps to start up the air compressor
  • The steps to start up the air compressor are usually as follows,Loosen the shipping brackets or bolts on the main frame that connect to the large base of the cabinet. These brackets or bolts are used to secure and protect the air compressor during transportation, but need to be loosened before use to ensure that the air compressor can run freely. Connect the power cord and ground wire, and check whether the voltage is correct and whether the three-phase voltage is balanced. This is to ensure the stable operation of the air compressor. Check whether the electrical wiring is firm and reliable. Electrical wiring is an important part of the air compressor. If the wiring is not firm or has hidden dangers, it may cause equipment failure. .Check whether the oil level in the oil and gas cylinder is at the appropriate position. An oil level that is too low may cause poor lubrication of the equipment, while an oil level that is too high may affect the normal operation of the equipment. Therefore, it is necessary to ensure that the oil level is within the normal range. Check that the belt tension is appropriate. The belt is an important transmission component in the air compressor. If the tension is inappropriate, it may cause the belt to slip or wear too quickly, thus affecting the normal operation of the equipment. Before starting for the first time or after a long shutdown, 0.5-1.5L air compressor oil should be injected into the compressor body through the air inlet, and the air compressor should be rotated by hand for a few turns to prevent oil loss and burning in the head when starting. damage. This is to ensure that the air compressor has enough lubricating oil when it is started, thereby protecting the equipment from damage. After completing the above steps, you can start the air compressor according to the instructions in the operation manual. Please note that you must follow operating specifications during operation and ensure that the equipment is in a stable and reliable condition. If necessary, it is recommended to consult professionals or manufacturers for guidance.
  • Safety Operating Procedures for Screw Air Compressors
  • Screw air compressors are widely used in various industries for their efficiency in generating compressed air.     However, it is crucial to prioritize safety when operating these machines.     This article aims to provide a concise guide on the safety procedures that should be followed while operating screw air compressors. 1.     Proper Training: Before operating a screw air compressor, it is essential to receive proper training on its operation, maintenance, and safety guidelines.     Familiarize yourself with the compressor's specific features, controls, and potential hazards.     Ensure that all personnel involved in operating the equipment have received appropriate training.   2.     Safety Equipment: Always wear appropriate personal protective equipment (PPE) when operating a screw air compressor.     This includes safety glasses, ear protection, gloves, and appropriate footwear.     PPE helps protect against potential injuries caused by flying debris, noise exposure, and accidental contact with moving parts.   3.     Pre-Operational Checks: Before starting the compressor, perform the following checks: a) Inspect the compressor and its surrounding area for any signs of damage, leaks, or obstructions.     Ensure that the compressor is properly grounded. b) Check all safety devices, such as emergency stop buttons, pressure relief valves, and pressure gauges, to ensure they are functioning correctly. c) Verify that all required maintenance has been performed, including oil and filter changes, and that all fluid levels are within the recommended range.   4.     Startup Procedure: a) Before starting the compressor, ensure that all personnel are clear of the equipment and that no one is in the immediate vicinity. b) Follow the manufacturer's instructions for starting the compressor.     This may involve engaging the power supply, opening the air intake valve, and activating the control panel. c) Monitor the compressor during startup for any abnormal noises, vibrations, or leaks.     If any issues are detected, immediately shut down the compressor and report it to the appropriate personnel.   5.     Operation Guidelines: a) Never exceed the maximum operating pressure specified by the manufacturer.     Operating above the recommended pressure can lead to equipment failure and potential accidents. b) Regularly monitor pressure and temperature gauges during operation.     Any significant deviations from normal values should be investigated promptly. c) Avoid overloading the compressor by exceeding its duty cycle.     Allow the equipment to cool down adequately between continuous operation to prevent overheating.   6.     Shutdown Procedure: a) Gradually reduce the operating pressure to zero using the compressor's control panel. b) Once the pressure is reduced, turn off the power supply to the compressor. c) Perform a final check of the equipment and the surrounding area to ensure that everything is in order before leaving.   Conclusion: By following these safety operating procedures for screw air compressors, operators can minimize the risk of accidents and injuries.     Remember, safety should always be the top priority to ensure a secure working environment for both the operator and those in the vicinity.
  • Screw Air Compressor: Understanding the Working Principle
  • A screw air compressor, also known as a rotary screw compressor, is a versatile and widely used device in various industries.  It operates based on a simple yet effective mechanism that ensures efficient compression of air. The primary components of a screw air compressor are two interlocking rotors, usually referred to as the male and female rotors.  These rotors are designed with helical lobes or screws that mesh together when the compressor is in operation.   When the compressor starts, the male and female rotors rotate in opposite directions.  As the rotors turn, the air is drawn into the space between the lobes.  The helical shape of the rotors allows for a gradual reduction in the volume of the air pocket.  Simultaneously, the air is compressed and pushed towards the discharge port.   The compression process in a screw air compressor occurs in three stages: inlet, compression, and discharge.  During the inlet stage, the air is drawn into the compressor through the inlet filter.  The air is then trapped between the rotor lobes as they rotate, creating a sealed area for compression.   In the compression stage, the volume of the trapped air reduces as the rotors continue to rotate.  This reduction in volume leads to an increase in air pressure.  The compressed air is then forced towards the discharge port.   Finally, in the discharge stage, the compressed air reaches the discharge port, which is connected to the air receiver or the system where the compressed air is utilized.  The pressure of the discharged air can be regulated using an integrated control system, ensuring it meets the specific requirements of the application.   One notable advantage of screw air compressors is their continuous operation.  Unlike reciprocating compressors that operate in cycles, screw compressors provide a continuous supply of compressed air.  This feature is particularly beneficial in applications where a constant and reliable source of compressed air is crucial.   Furthermore, screw air compressors are known for their efficiency and reliability.  The design of the helical lobes, along with the minimal clearance between the rotors, ensures a smooth and efficient compression process.  This results in reduced energy consumption and increased durability of the compressor.   In conclusion, the working principle of a screw air compressor revolves around the interlocking rotation of two helical rotors.  This mechanism allows for the gradual reduction of air volume, leading to the compression and subsequent discharge of compressed air.  With their continuous operation, efficiency, and reliability, screw air compressors have become an essential component in various industries, enabling the effective utilization of compressed air.
  • Common Troubleshooting and Maintenance for Screw Air Compressors
  • Screw air compressors are widely used in various industries to generate compressed air, which is essential for powering pneumatic tools and equipment. However, like any mechanical equipment, these compressors are prone to faults and failures. In this article, we will discuss some common troubleshooting and maintenance techniques for screw air compressors.   1. Insufficient or No Pressure Output: One of the most common issues with screw air compressors is the inadequate or no pressure output. Several factors can cause this problem, such as worn-out compressor seals, damaged valves, or clogged filters. To troubleshoot this issue, start by checking the compressor oil level and ensuring it is at the recommended level. Next, inspect the air intake filters and clean or replace them if necessary. Additionally, examine the valves for any signs of damage or leakage. If the problem persists, consult a professional technician for further inspection.   2. Excessive Noise or Vibration: If you notice unusual noise or excessive vibrations coming from your screw air compressor, it is crucial to address the problem promptly. Vibrations can be caused by misaligned couplings, loose bolts, or worn-out bearings. To resolve this issue, carefully inspect the compressor and tighten any loose bolts or connections. Ensure that the couplings are correctly aligned and adjust them if needed. If the noise or vibrations persist, it may indicate a more serious internal problem, requiring the expertise of a qualified technician.   3. Overheating: Overheating is another common problem in screw air compressors, often caused by insufficient cooling or lubrication. It is vital to monitor the compressor's temperature regularly and take immediate action if it exceeds the recommended range. To prevent overheating, ensure that the cooling fans are clean and functioning correctly. Regularly inspect and change the compressor oil according to the manufacturer's recommendations. If the problem persists, it could be due to a malfunctioning thermostat or a faulty temperature sensor, which requires professional attention.   4. Oil Leaks: Oil leaks can occur in screw air compressors due to worn-out seals or gaskets. These leaks not only lead to oil wastage but can also damage other components. To tackle this issue, inspect the compressor for any visible oil leaks and replace the faulty seals or gaskets. It is crucial to use the recommended type and grade of oil to prevent leaks. Regularly check the oil level and maintain it within the specified range. 5. Regular Maintenance: To ensure optimal performance and longevity of your screw air compressor, regular maintenance is essential. This includes checking and changing the compressor oil, cleaning or replacing air filters, inspecting and tightening connections, and lubricating moving parts as per the manufacturer's guidelines. Regularly monitor and record the compressor's performance, such as pressure output and temperature, to identify any potential issues early on.   In conclusion, screw air compressors are reliable and efficient machines when properly maintained. By following these common troubleshooting and maintenance techniques, you can minimize downtime, extend the lifespan of your compressor, and ensure uninterrupted operation in your industrial processes. However, it is always recommended to consult a qualified technician for complex issues or if you are unsure about any maintenance procedures.
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