High-efficiency variable speed screw chiller

High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller1. Eurostars water cooled commercial screw chiller brief introductionWater cooled water chillers feature high stability without being influenced by ambient temperature. Even in hot weather, they can work stably and quietly with high efficiency. With little de

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High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

1. Eurostars water cooled commercial screw chiller brief introduction

Water cooled water chillers feature high stability without being influenced by ambient temperature. Even in hot weather, they can work stably and quietly with high efficiency. With little demand for installation space, and no heat exhaust into the surrounding air, water cooled chiller units can be located either indoor or outdoor.

The purpose of water cooled chillers is to remove heat from a process and transfer it to a separate cooling entity such as a cooling tower.
For large capacity industrial applications in which heat generated by air cooled chillers creates a problem, water cooled chillers are generally used in conjunction with a cooling tower.
Mineral deposits buildup in the heat transfer circuit can degrade heat transfer and reduce system efficiency, so water cooled chillers typically require condenser water treatment to eliminate any buildup.

High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

2. Eurostars water cooled commercial screw chiller main components
(1)Screw compressor

Screw compressors are one version of positive displacement compression. As the screw rotors turn, the gas is compressed. Screw compressors have one or more rotors to accomplish the compression. Screw compressors feature simple and robust construction by elimination of some components such as pistons, piston rings, valve plates, oil pumps which are found in reciprocating compressors. Without these components,screw compressors run with low noise level, minimized vibration, high reliability and durability.
(2)Evaporator
*For smaller capacity chillers, the brazed plate evaporator is often used. The plates are stacked so they form a multi-layered design for two independent paths of fluid to travel. Each layer or path is linked to an inlet and outlet via a manifold at either end. The design of a brazed plate evaporator maximizes heat transfer at an attractive first cost for smaller chiller designs. The waterside of a brazed plate evaporator must be kept free of sediment and debris, strainers are required.
*Shell ad tube evaporator is designed to be the refrigerant flows through the tubes and the water flows around the tubes inside the shell section. As heat is transferred to the colder refrigerant from the warmer water, the refrigerant in the tubes boils while the water is cooled. Baffles within while the shell direct the water flow path over the tubes to create turbulence, resulting in improved heat transfer.
(3)Condenser
*Water cooled chillers either use brazed plate or shell and tube heat exchangers for the condenser. As in the condenser, the refrigerant is on the shell side, and the fluid is on the tube side, the fluid is generally fresh water, used with an open cooling tower.
*A typical condenser has a refrigerant hot gas inlet pipe and a liquid outlet pipe, the inlet pipe enters the top of the condenser where hot discharge gas from the compressor impacts a refrigerant distribution baffle.
*Other condenser water sources include lakes, rivers, or cooling ponds, in coastal areas, seawater may also be used; however, appropriate materials, like titanium, should be used to minimize tube and tube sheet corrosion.
(4)Expansion valve
*To maintain the necessary pressure difference between the evaporator and condenser, some form of metering device must be used. Expansion valves use saturated suction temperature to regulate the amount of refrigerant that passed through them, and are typically controlled electronically.
*Adopt superior quality famous exterior balanced thermal expansion valve, which is high reliability and adjustability, can realize precise refrigerant and temperature control to ensure operating in precise and reliable status.
(5)Relief valves
Refrigerant relief valves on either the condenser, the evaporator, or both, are provided as safety devices in the event of overpressurization. Overpressuriztion might occur during a fire or if hot water were run through the chiller tubes.
(6)Intellectualized controller
*All chillers need to be properly controlled for safe and efficient operation.  
*Adopt micro computer touch screen control, can operate via centralized manage system; whole system can realize remote operation.
*The system can monitor the water temperature,capacity status while running.The water temperature can be controlled according to the water outlet temperature.Trouble shooting code may display on the touch screen automatically when the system is abnormal.
*PLC controller is optional.
*RS485 interface reserved

High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

3. Eurostars water cooled commercial screw chiller brief technical data 
Please ask salesman for detailed complete data or visit our website:
eurostarschiller.en.made-in-china.com
eurostarschiller.en.made-in-china.com
Water Cooled Chiller Unit(R407C)
Model  ESGW   ~031SON041SON055SON067SON075SON089SON101SON108SON121SON141SON
Rated Cooling Capacity  KW96129166227248293339400473500
USRT27.3 36.7 47.2 64.6 70.5 83.3 96.4 113.8 134.5 142.2 
×1000kcal/h82.6 110.9 142.8 195.2 213.3 252.0 291.5 344.0 406.8 430.0 
Water Cooled Chiller Unit(R407C)
Model  ESGW   ~162SON175SON183SON208SON230SON234SON278SON297SON392SON443SON
Rated Cooling Capacity  KW553589616717787845943107413941587
USRT157.3 167.5 175.2 203.9 223.8 240.3 268.2 305.5 396.5 451.4 
×1000kcal/h475.6 506.5 529.8 616.6 676.8 726.7 811.0 923.6 1198.8 1364.8 
Water Cooled Chiller Unit(R407C)
Model  ESGW   ~062DON082DON110DON134DON150DON178DON202DON242DON282DON304DON
Rated Cooling Capacity  KW193257332454495587678800946999
USRT54.9 73.1 94.4 129.1 140.8 167.0 192.8 227.5 269.1 284.1 
×1000kcal/h166.0 221.0 285.5 390.4 425.7 504.8 583.1 688.0 813.6 859.1 
Water Cooled Chiller Unit(R407C)
Model  ESGW   ~324DON350DON366DON416DON460DON468DON556DON594DON784DON886DON
Rated Cooling Capacity  KW1105117812321433157416891885214827883174
USRT314.3 335.0 350.4 407.6 447.7 480.4 536.1 610.9 792.9 902.7 
×1000kcal/h950.3 1013.1 1059.5 1232.4 1353.6 1452.5 1621.1 1847.3 2397.7 2729.6 
Remarks:
(1)Rated Cooling Capacity Based on: Chilled water in/outlet temp. 12ºC/7ºC, Cooling water in/outlet temp. 30°C/35°C, Fouling factor: 0.088 sqm°C/KW.
(2) Chilled Water Range: 5~20ºC; Cooling Water Range: 20~40ºC;

4.Eurostars water cooled screw chiller construction diagram 
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller
 
(1)Screw compressor(2)Motor wiring box(3)Electrical control box
(4)Control board(5)Discharge stop valve(6)Oil indicator
(7)Chilled water outlet(8)Suction pipe(9)Sight glass
(10)Evaporator(11)Condenser(12)Dry filter
(13)Angle valve(14)Expansion valve 

5.Eurostars water cooled chiller series
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

 
Water cooled screw chiller(with dual compressors,dual condenser)
Water cooled screw chiller(with single compressor, single condenser)
Water cooled screw chiller(with flooded evaporator)
Water cooled screw chiller with heat recovery
Water cooled heat pump chiller
Water cooled heat pump chiller with heat recovery
Water cooled flooded screw chiller with heat recovery
Water cooled flooded heat pump chiller
Water cooled centrifugal water chiller

6.What Are Water Cooled Chiller Systems
An alternative to air-cooled systems and rooftop units, water cooled chiller systems are typically used for industrial and commercial applications for their significant energy savings benefits, and to aid companies in their attempts in reducing carbon emissions.
(1)How Do They Differ From Air-Cooled Systems?
Though water and air cooled systems share many components in common - evaporator, condenser, compressor, expansion valve - unlike air-cooled systems, which disperse heat via an air-cooled condenser coil, water cooled chiller systems use water to absorb heat, dispersing it into the air through a cooling tower. It is this component that gives water cooled systems an efficiency advantage over air-cooled and rooftop systems, from 10-100% depending on the setup.
(2)Why Are They So Much More Efficient?
Water is more energy dense than air, providing more efficient cooling than traditional air-cooled options. However these systems come with one main drawback: A higher equipment cost. They are typically used in locations larger than 200,000 square feet, where cooling needs will quickly offset the added cost of equipment. Other applications include industrial use, such as the cooling of plastics and metals, and the cooling of small and large multi-storied structures like universities, hospitals, and large office buildings, as the systems don't require ducts to push air through multiple stories. With system sizes ranging from 20 tons to several thousand, applications are wide and varied.

7.Eurostars OEM and ODM service:
EUROSTARS was established in 2006, has a professional technical team to research and develope HVAC products. We offer OEM/ODM service to our clients.
Now EUROSTARS collaborate with our clients in the following ways:
(1)Produce EUROSTARS standard products under clients' brand.
(2)Modify the products to satisfy clients' personalized requirements.
(3)If clients have their own idea and design of the products, EUROSTARS can actualize it and modify it make it easy for mass production.
(4)Based on strong capability of research and development, EUROSTARS can work together with clients to design and produce a totally new products.

8. Eurostars Company Ceritifcates & Customer Visiting
We, EUROSTARS, which established in year 2006, is a modern hi-tech enterprise, specializing in Heating Ventilation Air Conditioning and Industrial Refrigeration research, development, production, sales and engineering services.
Eurostars team with more than 10 years experience of HVAC equipment and system in local China and international market, has provided qualified HVAC equipment, installation and service to 30+ countries around the world.
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

9. Our factory view

Modern new process and assemble line, including copper tube straighten machine, aluminum fin punching machine, three dimensional copper tube bending machine, tube expander machine, sheet metal laser cutting machine, numerical control punching machine, CNC bending machine, chiller, fan coil unit and AHU assemble line,. etc..
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

10. Eurostars water cooled chiller package and delivery

Our standard package is plastic film with wooden pallet for safe delivery and easy to load/unload.
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

11. Eurostars water cooled chiller projects

We exported chillers to Ukraine, New Zealand, Guatelmala, Peru, Chile, Norway, Serbia, Romania, Greece, France, South Africa, Australia, Uzbekistan, Sri Lanka, India, Saudi Arabia, Iran, Mexico, Argentina, etc..
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller
High Efficiency Variable Speed Screw Chiller Water Cooled Water Chiller

 

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