In modern industrial production, industrial cooling water chillers are indispensable key equipment, providing efficient cooling solutions for various industries. Take the 50 ton water cooled chiller as an example. It integrates advanced technology and reliability and has become a highly respected choice in the industry.

The first key feature of the industrial cooling water chiller is high efficiency and energy saving. With advanced refrigeration technology and efficient cooling system, the 50 ton water cooled chiller can quickly reduce the temperature of the working environment and provide a stable cooling effect. More importantly, it can minimize energy consumption and save energy costs through intelligent control and optimized operation mode.

Secondly, the 50 ton water cooled chiller has excellent stability and reliability. During long-term operation, it can maintain a stable cooling effect and has good temperature control capabilities. Whether in hot summer or other harsh environments, it can maintain reliable operation and will not affect production efficiency due to changes in external conditions.

Finally, industrial cooling water chillers are widely used in various industrial fields. It can provide stable cooling effects for production and processing equipment, machine tools, injection molding machines, laser equipment, etc. to ensure the normal operation of the equipment. Especially in large-scale industrial production, the high cooling capacity and stable performance of the 50 ton water cooled chiller can meet the demand for large amounts of cooling water in the production process.

In addition to the characteristics of high efficiency, energy saving, stability and reliability, industrial cooling water chillers also have a variety of advanced functions and advantages. For example, the intelligent control system can realize remote monitoring and operation, which improves the convenience of equipment management. In addition, the compact design structure and advanced noise reduction technology enable it to generate lower noise and vibration during operation, reducing interference with the working environment.

Industrial cooling water chillers are an indispensable and important equipment in modern industrial production. The 50 ton water cooled chiller has become the first choice of many companies due to its high efficiency, energy saving, stability and reliability. With the continuous development and innovation of advanced technology, industrial cooling water chillers will continue to provide more efficient and reliable cooling solutions, injecting new impetus into the industrial manufacturing industry.

In the process of producing stretch film, the cooling system is very important, which directly affects the quality and output of stretch film. In general, we recommend choosing a chiller model with a cooling capacity slightly larger than the flow rate required for cooling, so as to ensure that the temperature and water flow rate can be kept within the required range under long-term stable operation.

When choosing a water chiller system for your stretch film machine and film blowing machine, there are several factors to consider:

Cooling Capacity: Determine the cooling capacity required for your machines based on their heat load. Consider factors such as the machine size, material type, production rate, and ambient temperature.

Temperature Control: Assess the temperature control requirements of your machines. Depending on the application, you may need precise temperature control to achieve optimal production conditions.

Chiller Type: Select a chiller type that suits your specific needs. Water-cooled chillers offer more efficient cooling but require a water source, while air-cooled chillers are easier to install and maintain but may be less efficient in certain environments. Oumal Chiller will provide professional suggestion of water cooling system for your stretch film machine. Below is the picture of our air cooled screw chiller in a plastic factory cooling the film stretch machine.

Chiller Size: Ensure that the chiller's physical dimensions and capacity fit the space and power constraints of your facility. Consider factors such as the available floor space, electrical capacity, and accessibility for service and maintenance.

Energy Efficiency: Look for chiller systems that are energy-efficient to help reduce operational costs. Consider features such as variable-speed drives, heat recovery options, and high-efficiency components.

Reliability and Maintenance: Choose a chiller system from a reputable manufacturer known for reliability and ease of maintenance. Look for features like easy access to components, built-in diagnostics, and reliable service support.

Water Quality: Consider the quality and availability of the water source needed for the chiller system. Assess the water's temperature, pressure, and the presence of any impurities that may affect the chiller's performance.

Cost Considerations: Evaluate the initial investment cost, operating costs, and long-term maintenance requirements of the chiller system. Consider the overall value and return on investment that the system can provide.

It is recommended to consult with chiller manufacturers or suppliers who specialize in industrial cooling solutions. They can assess your specific requirements and suggest the most suitable chiller system for your stretch film machine and film blowing machine applications. Oumal Chiller specializing in industrial cooling systems for over 15 years. Provide reliable industrial water chiller system for your stretch film machines. Also can provide Cooling air chiller for blowing the stretch film. Welcome to contact.

The cooling demand in the industrial field is growing day by day. Industrial water chillers and industrial glycol chillers are two common cooling devices. Although they can both effectively reduce the temperature, there are some differences in function and applicability.

Industrial water chiller is a cooling device that uses a fan to cool air through a radiator. It reduces the temperature of the cooling medium through a compression refrigeration cycle, and then dissipates the cooling medium through the fan of the radiator to remove the heat from the system. This type of chiller has the characteristics of small size, easy maintenance and simple installation. It is suitable for small power cooling needs in some industrial environments, such as computer rooms, laboratories, small processing equipment, etc.

Industrial glycol chillers use ethylene glycol as the cooling medium, and send ethylene glycol to the cooling equipment for cooling through a circulating pump. Ethylene glycol has good low-temperature performance and thermal stability, can provide stable cooling effect at lower temperatures, and is suitable for some industrial production scenarios with high temperature requirements, such as chemical, pharmaceutical, semiconductor manufacturing, etc. Glycol chillers are usually larger in size and require relatively complex piping systems for transportation and installation, but they can provide more stable and precise temperature control.

So the choice between industrial water chillers and industrial glycol chillers should be based on specific needs. If your cooling needs are small and the temperature control requirements are not high, industrial water chillers are an economical and practical choice.

If you need precise cooling at lower temperatures and have strict requirements for temperature control, then industrial glycol chillers will be a more suitable choice. If you want to understand cooling solutions, you can choose oumalchiller reliable supplier and high-quality equipment.

OUMAL Refrigeration Machinery Co.,Ltd. specializes in the research and development, as well as the sales, of chillers, mold temperature controllers, cooling towers, water pumps, and refrigeration accessories. Our mission is to provide a high-quality and reliable product line, serving a diverse market through customer satisfaction, innovative ideas, and flexibility.

As a distinguished China chiller manufacturer, OUMAL is committed to enhancing our influence and recognition in the industry. Our focus is on delivering excellence and innovation, which has positioned us as one of the leading industrial chiller manufacturers globally.

For many years, our sales and application support team has accumulated extensive experience, enabling them to offer recommendations for a wide range of applications. OUMAL’s manufacturing facility is equipped to produce equipment with numerous options and modifications, ensuring we meet nearly any customer demand or specific application need.

Our comprehensive product range includes various types of chillers designed for different industrial applications. These chillers are built to the highest standards, ensuring efficiency, reliability, and customer satisfaction. Our dedication to quality and innovation sets us apart in the market, allowing us to provide flexible solutions tailored to our clients’ unique requirements.

OUMAL’s product development process is driven by market demand and technological advancements. This approach ensures that we stay ahead of the curve, offering state-of-the-art products that meet the evolving needs of our clients. Whether it’s standard equipment or custom solutions, OUMAL is capable of delivering products that enhance operational efficiency and performance.

By focusing on innovation and customer satisfaction, OUMAL continues to build its reputation as a top China chiller manufacturer. Our products are designed to meet the stringent demands of the global market, ensuring we remain at the forefront of the industry.

OUMAL Refrigeration Machinery Co.,Ltd. is proud to be a leader among industrial chiller manufacturers. Our unwavering commitment to quality, innovation, and customer satisfaction drives our success and growth. We invite you to experience the excellence of OUMAL products and join our expanding list of satisfied customers worldwide.

Using glycol in chillers offers several advantages, including:
Lower Freezing Point: Glycol mixtures have a much lower freezing point than water, which prevents the coolant from freezing in the chiller system, especially in low-temperature applications. This property makes glycol ideal for environments where temperatures can drop below the freezing point of water.

Improved Heat Transfer Efficiency: Glycol enhances the heat transfer properties of the coolant, which can improve the overall efficiency of the chiller system. This results in better cooling performance and energy savings.

Corrosion Inhibition: Glycol-based coolants often contain corrosion inhibitors that protect the metal components of the chiller system from rust and corrosion. This extends the lifespan of the equipment and reduces maintenance costs.

Enhanced Fluid Stability: Glycol solutions are chemically stable and less likely to degrade over time compared to other coolants. This stability ensures consistent performance and reduces the need for frequent fluid replacement.

Wide Temperature Range: Glycol chillers can operate effectively across a wide range of temperatures, making them suitable for various industrial applications, from low-temperature cooling to high-temperature heat rejection.

Reduced Risk of Biological Growth: Glycol inhibits the growth of bacteria and algae, which can be a problem in water-only systems. This reduces the need for biocides and other chemical treatments, lowering maintenance costs and complexity.

Non-Flammability: Most glycol solutions are non-flammable, making them safer to use in environments where flammable coolants might pose a risk.

Compatibility with Various Systems: Glycol is compatible with a wide range of materials commonly used in chiller systems, including metals and plastics, reducing the risk of material degradation or failure.

Lower Viscosity at Low Temperatures: Glycol solutions maintain lower viscosity at low temperatures compared to pure water, which helps in maintaining fluid flow and reducing the load on pumps and other components.

Environmental and Safety Considerations: Propylene glycol, in particular, is less toxic and more environmentally friendly compared to ethylene glycol. This makes it a preferred choice in applications where there is a risk of coolant leakage into the environment or contact with food and beverages.

SHENZHEN OUMAL REFRIGERATION MACHINERY CO.,LTD. :
Our factory has been committed to the design and manufacture of glycol chiller system for more than 15 years.Welcome to order industrial glycol chiller system.Factory direct sale!

Water Chillers are generally divided into the following categories: screw chillers, centrifugal chillers, water ring heat pump units, plate and tube evaporative condensing screw chillers, thermal storage air conditioners, etc.

Screw chiller and centrifugal chiller are equipment that we often encounter. Below, Oumal Refrigeration will take you to understand the difference between centrifugal chiller and screw chiller?

What is a screw chiller?

The compressor adopts a screw type, hence the name screw chiller. The refrigerant coming out of the evaporator of the unit is a gas; after adiabatic compression by the compressor, it becomes a high-temperature and high-pressure state.

The compressed gas refrigerant is isobarically cooled and condensed in the condenser. After condensation, it changes into liquid refrigerant, and then expands to low pressure through the throttle valve and becomes a gas-liquid mixture.

The liquid refrigerant under low temperature and low pressure absorbs the heat of the cooled material in the evaporator and becomes a gaseous refrigerant again. The gaseous refrigerant re-enters the compressor through the pipeline and starts a new cycle. These are the four processes of the freezing cycle. It is also the main working principle of screw chiller.

2. What is a centrifugal chiller?

The biggest difference from the screw chiller is that it uses a centrifugal compressor.

It is a cooling system that uses the principle of centrifugal force to remove heat from the inside of the fluid. It is composed of centrifugal refrigeration compressor, evaporator, condenser, main motor, air extraction recovery device, lubrication system, control cabinet and starting cabinet. Some of these components are assembled in a decentralized manner, but most are "assembled" units in which each component is put together. The units are divided into fully enclosed, semi-enclosed and open types.

Both centrifugal and screw chillers are types of refrigeration systems commonly used for cooling in various applications. While they serve a similar purpose, there are some key differences between the two different chillers:

Working Principle:

Centrifugal Chiller: Centrifugal chillers use a rotating impeller and centrifugal force to compress and cool the refrigerant.

Screw Chiller: Screw chillers use two rotating screws (male and female) to compress and cool the refrigerant.

Capacity:

Centrifugal Chiller: Centrifugal chillers are typically available in larger capacities, ranging from several hundred tons to several thousand tons of refrigeration.

Screw Chiller: Screw chillers are available in a wide range of capacities, but they are generally suitable for smaller to medium-sized applications.

Energy Efficiency:

Centrifugal Chiller: Centrifugal chillers are known for their high energy efficiency, especially at full load conditions. They are designed to provide efficient cooling for large-scale applications.

Screw Chiller: Screw chillers also offer good energy efficiency, but their efficiency may vary based on operating conditions and load levels.

Operating Characteristics:

Centrifugal Chiller: Centrifugal chillers are often used in applications with varying loads and where precise temperature control is required. They can handle load variations effectively and provide good part-load performance.

Screw Chiller: Screw chillers are suitable for applications with relatively constant loads, as they are generally more efficient at full load conditions. They are commonly used in commercial and industrial settings.

Maintenance and Service:

Centrifugal Chiller: Centrifugal chillers typically require specialized maintenance and service due to their complex design and construction.

Screw Chiller: Screw chillers are relatively easier to maintain and service compared to centrifugal chillers, primarily due to their simpler design and fewer moving parts.

It's important to note that the selection between centrifugal and screw chillers depends on various factors such as cooling requirements, capacity, energy efficiency goals, load characteristics, and budget considerations. Consulting with a professional HVAC engineer or chiller manufacturer can help determine the most suitable chiller type for specific applications.

Maintenance of an air-cooled chiller is essential to ensure efficient operation, longevity, and to prevent unexpected breakdowns. The following are key maintenance tasks required for an air-cooled chiller:

1. Regular Cleaning of Condenser Coils
Frequency: Monthly or as needed
Task: Clean the condenser coils to remove dirt, debris, and buildup that can reduce heat transfer efficiency.
Method: Use compressed air, a soft brush, or a commercial coil cleaner.

2. Checking Refrigerant Levels
Frequency: Monthly
Task: Ensure refrigerant levels are within the manufacturer’s recommended range.
Method: Use gauges and other diagnostic tools to measure refrigerant pressures.

3. Inspecting Electrical Components
Frequency: Quarterly
Task: Inspect electrical connections, contactors, and wiring for signs of wear, corrosion, or damage.
Method: Tighten loose connections, replace damaged wires, and check for proper voltage and amperage.

4. Monitoring and Testing Controls
Frequency: Monthly
Task: Check the functionality of control systems, thermostats, and sensors.
Method: Verify that setpoints are accurate and that the system responds correctly to changes in temperature and load.

5. Lubricating Moving Parts
Frequency: Annually or as recommended by the manufacturer
Task: Lubricate bearings, motors, and other moving parts to reduce friction and wear.
Method: Use manufacturer-recommended lubricants and follow specified procedures.

6. Inspecting and Cleaning Air Filters
Frequency: Monthly
Task: Inspect air filters for dirt and replace or clean them as necessary.
Method: Follow the manufacturer’s recommendations for filter maintenance.

7. Checking for Refrigerant Leaks
Frequency: Quarterly
Task: Inspect the system for signs of refrigerant leaks.
Method: Use leak detection tools and repair any leaks promptly to maintain system efficiency.

8. Evaluating Compressor Performance
Frequency: Annually
Task: Check the compressor for unusual noises, vibrations, or signs of wear.
Method: Perform diagnostic tests and replace or repair components as needed.

9. Inspecting and Maintaining Fans and Blades
Frequency: Quarterly
Task: Check fan blades for damage and clean them to ensure proper airflow.
Method: Tighten loose bolts and replace damaged blades.

10. Monitoring Water Quality (if applicable)
Frequency: Monthly
Task: For systems with water-cooled components, monitor and maintain water quality to prevent scale and corrosion.
Method: Use water treatment chemicals and regularly test water quality.

11. Verifying System Pressures and Temperatures
Frequency: Monthly
Task: Check system pressures and temperatures to ensure they are within normal operating ranges.
Method: Use gauges and sensors to monitor and adjust as necessary.

12. Reviewing System Performance
Frequency: Annually
Task: Conduct a comprehensive performance review to identify inefficiencies or areas for improvement.
Method: Analyze operational data, inspect all components, and perform a full system audit.

13. Updating Maintenance Records
Frequency: Ongoing
Task: Keep detailed records of all maintenance activities, including dates, findings, and actions taken.
Method: Use a logbook or digital maintenance management system.

OUMAL REFRIGERATION MACHINERY CO.,LTD.: We have been focusing on air-cooled chiller manufacturing for many years. We are a professional air-cooled chiller supplier, providing you with high-quality air-cooled chiller products with diversified products, such as 30 tons ~ 100 tons air-cooled chiller, 400 kW air-cooled chiller, 20HP air-cooled chiller, etc. Welcome to consult!

Ensuring the longevity of an industrial air cooled chiller involves a series of diligent maintenance practices designed to maintain optimal performance and prevent premature wear. Regular inspections and upkeep are critical for the efficient operation of these systems. For an air cooled screw chiller, frequent checks of key components such as the compressor, condenser coils, and evaporator are essential. The compressor should be monitored for any signs of wear or inefficiency, like unusual noises or vibrations, which could indicate potential issues. Keeping the condenser coils clean is equally important, as dirt and debris can obstruct airflow and reduce the system’s efficiency.

Maintaining proper refrigerant levels is another crucial aspect of prolonging the life of an industrial air cooled chiller. Low refrigerant levels can cause the system to overheat, potentially damaging the compressor and other components. Regular monitoring and replenishment of refrigerant help maintain the system’s efficiency and prevent breakdowns. Additionally, inspecting and replacing worn-out seals and gaskets can prevent leaks and ensure the system operates smoothly. This practice is particularly important in maintaining the effectiveness of the water chiller cooling system, which relies on precise refrigerant levels for optimal performance.

Lubrication of moving parts is vital for the longevity of an air cooled screw chiller. Regularly checking and replacing lubricants as specified by the manufacturer reduces friction and wear, thereby extending the life of components such as the compressor and fans. Ensuring all moving parts are well-lubricated prevents overheating and excessive wear, which can lead to costly repairs and downtime. Regular maintenance should also include checking the electrical connections and control systems to ensure they are functioning correctly, as faulty electrical connections can lead to system malfunctions or even complete failures.

Maintaining optimal airflow around the chiller unit is crucial. Ensuring there are no obstructions around the air intake and exhaust areas helps maintain proper airflow, essential for efficient cooling. Regularly inspecting and cleaning the air filters also ensures that the system operates at peak efficiency. This practice is particularly important for an industrial air cooled chiller, where maintaining consistent airflow directly impacts the cooling performance and energy efficiency of the system.

Water quality is another important factor in maintaining the water chiller cooling system. Regularly checking and treating the water to prevent scale build-up and corrosion can prolong the life of the chiller. Ensuring that the water treatment systems are functioning properly and that the water is free of contaminants helps to prevent damage to internal components. This maintenance practice is essential for avoiding costly repairs and ensuring the efficient operation of the chiller system.

Implementing a proactive maintenance schedule is key to ensuring the longevity of an industrial air cooled chiller. Keeping detailed records of all maintenance activities and scheduling regular service checks by qualified technicians helps identify potential issues early and address them before they escalate into major problems. By adhering to these maintenance practices, operators can significantly enhance the longevity and performance of their chillers, minimizing downtime and maximizing the return on their investment.

OUMAL Chiller is a cooling tower and chiller system manufacturer integrating R&D,manufacturing and customization.Provide professional solutions.15+ years of work experience. If you have any questions about the chiller, you can send an email to answer them for you!

What is screw chiller?

A Screw chiller is an industrial chiller using a semi-hermetic screw type compressor. Including air cooled screw chiller and water cooled screw chiller. Screw chiller models generally range from 30HP to 300HP or even larger. Screw chiller usually use single compressor or double or four compressors. Our Screw chillers mainly use the following brands: Hanbell, Bitzer, or Refcomp.

What is scroll chiller ?

A scroll chiller is an industrial chiller using hermetic scroll type compressor. Also the sroll chillers including air cooled scroll chillers and water cooled scroll chillers. Scroll chiller models usually range from 3HP to 100HP. The Scroll types compressors brands we use are: Copeland, Danfoss, Daikin, Panasonic. Compressors qty optional.

Both screw and scroll chillers have their advantages are suitable for different applications. Here are some key differences between the two:

Design: A screw chiller uses a rotary screw compressor, while a scroll chiller uses scroll compressors. The screw compressor is typically more robust and suitable for larger capacity applications, while the scroll compressor is more compact and suitable for smaller to medium-sized applications.

Efficiency: Screw chillers generally have higher efficiency compared to scroll chillers, especially at higher loads. They can provide better part-load performance and energy savings.

Noise: Scroll chillers are known for their low noise operation, making them suitable for noise-sensitive environments. Screw chillers may produce higher noise levels, although noise reduction measures can be implemented.

Capacity: Screw chillers are available in larger capacity ranges, making them suitable for industrial applications with higher cooling demands. Scroll chillers are generally used for smaller to medium-sized applications.

Reliability: Both screw and scroll chillers are reliable, but the simplicity of scroll chiller design often results in fewer moving parts and potentially higher reliability.

So when you don’t know how to chose a right chiller for your water cooling system.It is important to consider the specific requirements of your application, such as cooling capacity, efficiency, noise level, and cost, when choosing between screw and scroll chillers. Consulting with a qualified HVAC professional can help determine the most suitable option for your specific needs. You can contact us for further information and we will offer you best solution for your industrial chiller systems. Email: oumal@oumal.com. Whatsapp: 0086 15112554736.

Like all chiller systems, a water cooled screw chiller consists of an evaporator, expansion valve, refrigerant, internal piping and controls. The main difference between screw chillers is their compressor. Screw chillers use two helical rotors to drive and compress the refrigerant gas. This type of chiller has nearly constant flow performance and is powered by an electric motor, steam or gas turbine. They are available in capacities ranging from 25 to 800 tons and are very effective when used with liquids with high evaporative temperatures.

Screw or helical compressors in screw chillers consist of two matched helical groove rotors: convex baffle and groove. They are mounted in a fixed housing and move simultaneously. As they rotate, the refrigerant gas is compressed and converted to vapor by the direct volume reduction between the two rotors.

These compressors are equipped with sliders that adjust the length of the compression path. Intake, compression and discharge take place in a linear direction. An oil lubricant on the rotor also acts as a sealant. The motor is cooled as the refrigerant flows through the holes in the screw, which acts as a liquid separator. It is important that the screw chillers are properly sized.

When they are too large, they have a long reverse cycle time and will shut down if cooling is not needed. This can also happen if the motor is running at unnecessarily high speeds or if it is driven in an open circuit. However, when properly configured, motorized chillers are reliable, efficient liquid chillers for the entire range of industrial and air conditioning applications.

This series of water cooled screw compressor chiller adopts European high-efficiency screw compressors, which have their own advantages: high energy efficiency, low noise, high reliability, small footprint, easy installation, simple operation and high flexibility. They are widely used in surface engineering, medicine, chemical, metallurgy, leather, laser, electronics, injection molding, printing and other industries. There are too many models of this series of chiller. It can realize the perfect match for industrial applications.