What is Water Chiller Units

Chilled water air conditioning systems have many advantages over regular AC units, especially for bigger buildings. They use less energy and are more efficient. Centralized equipment simplifies maintenance and reduces noises in occupied spaces. These systems are flexible and easy to modify.

Benefits of Water Chiller Units

Adjustability
The chiller can adjust the temperature and flow of cooling water as needed to meet the needs of different industrial and commercial applications.

Stability
The chiller can stably provide a constant cooling water temperature to ensure the stability and quality of the production process.

Energy saving
The chiller adopts high-efficiency energy-saving technology, which can effectively reduce energy consumption and reduce electricity expenses.

Low noise
The chiller usually adopts a silent design with low noise, which will not interfere with the working environment and the production and life of employees.

Easy to install and maintain
The chiller is usually equipped with a user-friendly control system and monitoring device for easy operation and maintenance. At the same time, the maintenance work of the chiller is relatively simple, and most of them only require regular cleaning and inspection.

Flexibility
The chiller can be connected in parallel or in series with multiple or single units as needed to meet the cooling water systems of different scales and needs.

Special Chiller Pet Blowing Bottle Machine

Air cooled water cooling machine can be installed easily and it's unnecessary to be used without cooling tower, There are various specification of machines avaible and cooling range varies from 7250 to 245000 kilocalorie(3HP-100HP),the unit is designed with multiple safety protetion to ensure safe operation

Special Extruder Air Cooled Chiller

Product name:Water Chiller Units Model: MG-3A Cooling capacity: 7250kcal/hr;8.kw Refrigerant:R22/R407c Power supply:380v/50hz/3ph or customization Cooling way: Air cooled Compressor type: scroll type Compressor brand: Panasonic /Copeland/etc.

Special Air Cooler Chiller For Film Blowing Machine

Industrial Water Chiller Manufacturers

Water Chiller System Air Cooled Chiller

Product name:water chiller system air cooled chiller Model: MG-10A Cooling capacity: 25000kcal/hr;29.kw Refrigerant:R22/R407c Power supply:380v/50hz/3ph or customization Cooling way: Air cooled Compressor type: scroll type Compressor brand: Panasonic /Copeland/etc.

Electric Intelligent Air Cooled Chiller

Cooling System Chiller

Item: Cooling system chiller air coole chiller Model:MG-8A Cooling capacity: 19250kcal/hr,22kw Input power: 6.8kw Power supply: 380 v/3ph/50hz or as your request Refrigerant: R407c or your request Compressor: Hermetic piston or scroll type Cooling fan :2 set Condenser type: "V" type Evaporator: Shell and tube

Refrigerated Water Chiller

The Refrigerated Water Chiller is suitable for injection machine, plastic film machine, film blowing machine, bottle blowing machine, cap compression machine, etc., and food grade special customization for food industry.

Air Cooled Chiller 5 Ton Chiller

Item: Air cooled chiller 5ton chiller Application : plastic,electroplating, leather, chemical, etc. Model: MG-5A Cooling capacity: 12300kcal/hr Power supply: 380 v/3ph/50hz or as your request Refrigerant: R22 or your requrest Compressor: Hermetic piston or scroll type Cooling fan :2set

Why Choose Us

Competitive prices
We offer our products at competitive prices, making them affordable for our customers. We believe that high-quality products should not come at a premium, and we strive to make our products accessible to all.

Efficient and convenient
The company has established marketing networks around the world to provide high-quality services to customers in an efficient and convenient manner.

High quality products
We always put customer needs and expectations in the first place, refine on, continuous improvement, to seek every opportunity to do better, to provide customers with their expectations of quality products, to provide customers with the most satisfactory service at anytime.

Quality control
All goods will undergo strict quality inspection before shipment. MCC always insists on providing high-quality products. We firmly believe that quality is the basis of everything.

State-of-the-art technology
We use the latest technology and tools to deliver high quality services. Our team is well-versed in the and advancements in technology and uses them to provide the best results.

Customer satisfaction
Providing after-sales services can enhance customer satisfaction by ensuring that customers' needs are met even after the purchase. This can lead to increased customer loyalty and positive word-of-mouth referrals.

Types of Water Chiller Units

Centrifugal Chillers
The majority of centrifugal chillers are water chillers (It' s extremely rare that you' ll find a centrifugal system in an air chiller). Centrifugal chillers are often used for medium to large cooling loads (typically available from 150 up to 6,000 tons of refrigeration) This system offers high cooling capacity in a compact design. Centrifugal chillers operate by using rotating impellers to compress the refrigerant and force it around the chiller.

Reciprocating Chillers
These systems work by using a piston and chamber to compress the refrigerant. You' ll find a reciprocating compressor in any of the ½ ton models we sell at North Slope Chillers.

Scroll Compressor Chillers
Scroll compressors are used in both air and water coolers. These chillers operate by using two spiral plates (one stationary and one rotating) to compress the refrigerant. Our chillers use scroll compressors for the 1 and 2-ton models.

Screw Driven Chillers
Screw chillers are also used in both water and air chillers and are best for small to medium cooling loads. These chillers are typically available in 70 to 600 tons. Screw compressors work by using two interlocking rotating helical rotors to compress the refrigerant.

What Are the Water Chiller Applications

Water chillers have a variety of applications where they are used to provide cooling for various processes and systems:

Energy Saving Industrial Water Cooled Chiller

Industrial processes
Water chillers are commonly used in industrial facilities to provide cooling for machinery, equipment, and manufacturing processes that generate excess heat. This includes applications like metal working, plastic injection molding, food and beverage processing, and chemical manufacturing.

HVAC systems
Water chillers are a key component of many commercial and industrial HVAC (Heating, Ventilation, and Air Conditioning) systems. They provide chilled water that is circulated through the building to cool the air.

Data centers and IT equipment
Water chillers are essential for cooling computer servers, data storage systems, and other IT equipment in data centers and computer rooms to prevent overheating.

Medical and laboratory equipment
Sensitive medical and scientific instruments often require precise temperature control, which water chillers can provide to maintain optimal operating conditions.

Plastics and rubber processing
The extrusion, molding, and other manufacturing processes for plastics and rubber products rely on water chillers to dissipate heat and maintain product quality.

Laser and semiconductor manufacturing
The high-powered lasers and sensitive electronics used in these industries generate significant heat that must be removed using water chiller systems.

Food and beverage production
Water chillers are used to chill various food and drink products, as well as to provide cooling for refrigeration and freezing equipment in food processing facilities.

How does a Chiller work

In most process cooling applications, a pumping system circulates cool water or a water/glycol solution from the chiller to the process. This cool fluid removes heat from the process and the warm fluid returns to the chiller. The process water is the means by which heat transfers from the process to the chiller.

Process chillers contain a chemical compound, called a refrigerant. There are many types of refrigerant and applications depending on the temperatures required but they all work on the basic principle of compression and phase-change of the refrigerant from a liquid to a gas and back to a liquid. This process of heating and cooling the refrigerant and changing it from a gas to a liquid and back again is the refrigeration cycle.

The refrigeration cycle starts with a low-pressure liquid/gas mix entering the evaporator. In the evaporator, heat from the process water or water/glycol solution boils the refrigerant, which changes it from a low-pressure liquid to a low-pressure gas. The low-pressure gas enters the compressor where it is compressed to high-pressure gas. The high-pressure gas enters the condenser where ambient air or condenser water removes heat to cool it to a high-pressure liquid. The high-pressure liquid travels to the expansion valve, which controls how much liquid refrigerant enters the evaporator, thereby beginning the refrigeration cycle again.

There are two types of condensers used in chillers; air-cooled and water-cooled. An air-cooled condenser uses ambient air to cool and condense the hot refrigerant gas back down to a liquid. It can be located inside the chiller or can be remotely located outside, but ultimately it rejects the heat from the chiller to the air. In a water-cooled condenser, water from a cooling tower cools and condenses the refrigerant.

Chiller Maintenance

1. Track and Monitor Daily Operations Log

A daily operations log provides supporting data to help isolate problems and fix inefficiencies faster. Details under the log should include flow rates, operating temperatures, and other crucial information. Keeping a detailed log takes just a few minutes a day and could be the key you need to get things up and running again should a problem arise.

2.Use Regular Water Treatments

There are many different types of chillers used in different situations, but the most common are water chillers, or water-cooled chillers. Water in the units must be frequently treated to prevent corrosion, scale accumulation, and algae growth. For closed water systems use regular chemical treatments. Filters should be cleaned every three months to prevent contaminant buildup.

3. Immediately Tend to Leaks

Small leaks in your chiller system can lead to more serious issues. Unwanted moisture could contribute to the formation of corrosive acids. Additionally, moisture could cause chiller parts to rust and stop working properly. Carefully check your unit at least once quarterly for leaks.

4. Clean System Tubes

Overall system productivity depends upon the efficiency of heat transfer in the evaporator and condenser tubes. Keeping these tubes clean will help keep your chiller running smoothly. Cleanings are done through brushing or applying chemicals to remove algae and scale accumulation.

5. Regularly Conduct Oil and Refrigerant Analysis

Regularly analyzing the oil and refrigerant within your system can help prevent more complicated issues. Consistent refrigerant analysis can help detect contamination issues. Oil analysis can expose underlying problems such as problems with compressor wear or excess moisture content in the oil.

Chillers Main components

Compressor
The compressor is the the prime mover, it creates a pressure difference to move the refrigerant around the system. There are various designs of refrigerant compressors, the most common being the centrifugal, screw, scroll and reciprocating type compressors. Each type has it' s own pro' s and con' s. It is always located between the evaporator and the condenser. It' s usually partly insulated and will have an electrical motor attached as the driving force, this will be either mounted internally or externally. Compressors can be extremely noisy, usually a constant deep droning sound with an overlaying high pitch, hearing protection should be worn when in close proximity to the chiller.

Condenser
The condenser is located after the compressor and before the expansion valve. The purpose of the condenser is to remove heat from the refrigerant which was picked up in the evaporator. There are two main types of condensers, Air cooled and Water cooled.
Water cooled condensers will repetitively cycle ''Condenser water'' between the cooling tower and the condenser, the hot refrigerant which enters the condenser from the compressor, will transfer its heat into this water which is transported up to the cooling tower and rejected from the building. The refrigerant and the water do not mix they are kept separated by a pipe wall, the water flows inside the pipe and the refrigerant flows on the outside.
Condensers on air cooled chillers work slightly differently, they do not use a cooling tower but instead blow air across the exposed condenser pipes with the refrigerant flowing this time on the inside of the tube.

Expansion valve
The expansion valve is located between the condenser and the evaporator. It' s purpose is to expand the refrigerant reducing its pressure and increase it' s volume which will allow it to pick up the unwanted heat in the evaporator. There are many different types of expansion valve, the most common at the thermal expansion vale, the pilot operated thermal expansion valve, the electronic expansion valve and the fixed orifice expansion valve.

Evaporator
The evaporator is located between the expansion valve and the compressor, its purpose is to collect the unwanted heat from the building and move this into the refrigerant so that it can be sent to the cooling tower and rejected. The water cools as the heat is extracted by the refrigerant, this ''chilled water'' is then pumped around the building to provide air conditioning, This ''Chilled water'' then returns to the evaporator bringing with it any unwanted heat from the building.

Power unit
The power unit is either mounted directly to the chiller or it can be seperated and mounted to the wall of the plant room with power cables running between them. The purpose of the power unit is to control the flow of electrical power to the chiller. These usually contain a starter, circuit breakers, speed controller and power monitoring equipment.

Controls
The controls unit is typically mounted on the chiller. It' s purpose is to monitor the various aspects of the chillers performance and control these by making adjustments. The controls unit will generate alarms for the engineering teams and safely shut the system down to prevent damage to the unit. BMS connections are also usually present to allow remote control and monitoring.

Water boxes
Water boxes are mounted to the evaporators and also the condensers of water cooled chillers. The purpose of the water box is to direct flow as well as as to segregate the entrance and exit. Depending on the number of passes in the evaporator and condenser, water boxes may have 1-2 flanged entrance or exit holes or they can be completely capped and just redirect flow back into the next pass.

Our Factory

WENZHOU DMG MACHINERY Co., Ltd manily manufacture and export refrigeration equipment and air compressor with good reputation, Our customers are located all over the world including China, Southeast Asia, Middle East, USA, Europe as well as Africa and South America.

FAQ

Q: What does a chiller unit do?

A: A chiller provides consistent temperature and pressure to your industrial process. Eliminating temperature and pressure variables simplifies the process development and optimization, ensuring the highest quality product. Instead of a wasteful, single-pass-through system, a chiller recirculates the cooling water.

Q: How does a chilled water unit work?

A: Cooled water is used in chilled water systems to cool a building by absorbing heat from its interior spaces. A chiller, the brain of the water-chilled system, uses a refrigeration cycle to extract heat from water. Heat is either transferred to the condenser water or the outside air in the chiller's condenser.

Q: How do you calculate chiller units?

A: Q = ṁ x C x ΔT
Q = Heat Load (BTU/hr)
ṁ = Mass flow rate of fluid being cooled.
C = Specific heat of fluid (BTU/lb-°F)
ΔT = Change in fluid temperature.

Q: Is a chiller a fridge or freezer?

A: The main difference between Refrigerator and Chiller is that the Refrigerator is a household appliance for preserving food at a low temperature and Chiller is a machine that removes heat from a liquid via a vapor-compression or absorption refrigeration cycle. What Is a Chiller?

Q: Do water chillers need a pump?

A: When you are running your circulator and/or chiller with water at a constant pressure you will need a pump that provides a good flow rate.

Q: How long does it take a water chiller to work?

A: Actual cool-down time will depend on the starting water temperature, water volume, and the ambient air temperature. We have found that the chiller will cool water at a rate of about 10-12 F per hour. This allows the tub to cool from a starting water temperature of 65 F to 37 F in about 2.5 hours.

Q: What are chill water units?

A: Chilled water air conditioning systems have many advantages over regular AC units, especially for bigger buildings. They use less energy and are more efficient. Centralized equipment simplifies maintenance and reduces noises in occupied spaces. These systems are flexible and easy to modify.

Q: How big of a water chiller do I need?

A: Repeat this for all the equipment you have, and add up the total BTUs. Now that you have the BTUs, compute the total tons of cooling you need from a chiller. This is the size unit you should need.

Q: What is the temperature of a chiller unit?

A: The temperature of the chilled water (exiting the chiller) typically ranges from 1 to 7 °C (34 to 45 °F), depending on application requirements. Typically, chillers receive water at 12 °C (entry temperature), and cool it to 7 °C (exit temperature).

Q: What is the basic working principle of chiller?

A: A chiller works on the principle of vapor compression or vapor absorption. Chillers provide a continuous flow of coolant to the cold side of a process water system at a desired temperature of about 50°F (10°C).

Q: What temperature is chiller water?

A: The temperature range of a chilled water system is 6 to 12 °C or 5 to 11 °C, with a temperature difference of six degrees. Chilled water is produced by a chiller – in other words, it's created artificially.

Q: Is a chiller colder than a freezer?

A: The primary difference between a walk-in chiller and a walk-in freezer is the storage temperature maintained within the unit. Walk-in chillers maintain a temperature between -2°C and -5°C for the storage of perishable products. Walk-in freezers, on the other hand, operate within a temperature range of -12° C to -18° C.

Q: What is the purpose of a chiller unit?

A: The function of a chiller condenser unit is to eliminate heat from the refrigerant being circulated through the chiller unit. This is achieved by circulating water between a cooling tower and the condenser for water-cooled variants or blowing cool air over condenser piping for air-cooled chiller units.

Q: How long do water chillers last?

A: The typical life cycle of a chiller depends on its type. On average, an air-cooled chiller's lifespan is anywhere from 15 years to 20 years. A water-cooled chiller is normally closer to 20 to 30 years. Where your chiller is located and the conditions it's under can also affect its life expectancy.

Q: Is a chiller considered HVAC?

A: HVAC chillers are primarily used for air-conditioning… comfort cooling. Some Commercial HVAC chiller manufacturers offer features that are a standard on industrial chillers but are offered only as an optional add on to their products and at a significantly increased cost.

Q: What is the difference between chiller and water cooling?

A: The difference is that the water-cooled chillers or rather the cooling towers use a humid air stream (ambient air stream + water spray) while the air-cooled chillers use a current of ambient air. Normally water-cooled chiller is cheaper and more efficient, with the disadvantage of high water consumption.

Q: Is a chiller the same as a cooler?

A: What are the key differences between these two? Dry coolers and chillers both help keep items cold. Chiller is a higher-end machine that can do the job of a refrigerator. Dry coolers, on the other hand, typically use ice as a cooling agent rather than electricity.

Q: Do water chillers use a lot of electricity?

A: To produce just cold water, a water cooler uses between . 3 and 1.2 kWh per day, which comes out to around $45 per year added to your electricity bill. Essentially, it can cost anywhere from less than 50 cents to 10 cents per hour. If you want hot water, however, it's a different story.

Q: How long do chillers last?

A: It is true that chillers are intended to be very durable. On average, an industrial chiller can last anywhere between 15 and 20 years. If maintained and serviced regularly, the life of the chiller can increase even more.

Q: Are chillers electric or gas?

A: Each product contains an evaporator, condenser, compressor, and an expansion valve. The biggest difference between the two systems is that one uses air to supply the condenser cooling and the other uses water. Both systems can be fueled by electricity or natural gas.

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