| Customization: | Available |
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| After-sales Service: | 7X 24 Hours |
| Warranty: | 15 Months |
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Energy-saving water cooled VSD/ VFD Variable Speed Drives screw chiller Inverter water chiller
An energy-saving water-cooled chiller is a type of cooling system that efficiently removes heat from a process or building by using water as a cooling medium. Unlike air-cooled chillers that dissipate heat directly into the air, water-cooled chillers transfer heat to a cooling tower, which then releases the heat through evaporation.
Here are some features and factors that contribute to the energy efficiency of water-cooled chillers:
High-efficiency compressors: Utilizing advanced compressor technology, such as scroll or screw compressors, can significantly improve the chiller's energy efficiency by reducing power consumption during operation.
Variable Speed Drives (VSD): Water-cooled chillers equipped with VSD technology allow the compressor to adjust its speed based on the cooling load, resulting in energy savings by matching the system's capacity to the actual demand.
Heat recovery: Some water-cooled chillers offer heat recovery capabilities, where excess heat generated during the cooling process is utilized for other purposes, such as space heating or domestic hot water. This reduces the need for additional energy sources and improves overall system efficiency.
Efficient heat exchangers: The design and efficiency of the heat exchangers, including the evaporator and condenser, play a crucial role in the chiller's performance. Optimized heat transfer surfaces and advancements in heat exchanger technology can improve energy efficiency and reduce overall operating costs.
Intelligent controls: Advanced control systems and algorithms allow for precise monitoring and optimization of the chiller's operation. These controls can adjust various parameters, such as setpoints, water flow rates, and compressor output, to ensure optimal performance and energy efficiency based on real-time conditions.
Water-side economizers: Water-side economizers use cool ambient water or groundwater to assist with the cooling process, reducing the load on the chiller during favorable operating conditions. This can result in substantial energy savings, especially in areas with cool climates or access to a natural water source.
Proper maintenance and regular servicing: Regular maintenance, including cleaning of heat transfer surfaces, checking refrigerant charge, and ensuring adequate water flow rates, is essential for keeping the chiller operating at peak efficiency. Neglecting maintenance can lead to reduced performance and increased energy consumption over time.
When choosing an energy-saving water-cooled chiller, it's important to consider the specific cooling requirements, load profile, and operational conditions of your application. Consulting with a reputable HVAC professional can help determine the most suitable system for your needs while optimizing energy efficiency.
A water-cooled screw chiller is a type of chiller used for cooling applications that require a large cooling capacity. It is specifically designed to remove heat from industrial processes or air conditioning systems by circulating chilled water through the system.
Here are some key features and advantages of water-cooled screw chillers:
Cooling System: Water-cooled screw chillers utilize a refrigeration system that consists of a compressor, evaporator, condenser, and expansion valve. The compressor compresses the refrigerant, which then flows through the evaporator where it absorbs heat from the process or the air conditioning system. The heated refrigerant is then sent to the condenser, where it releases heat to the cooling water. The water is circulated and cooled in a separate water loop.
High Cooling Capacity: Water-cooled screw chillers are capable of providing high cooling capacities, making them suitable for large-scale applications that require significant cooling capacity. They can handle a wide range of cooling loads and maintain precise temperature control.
Energy Efficiency: Water-cooled screw chillers typically have better energy efficiency compared to air-cooled chillers. The water-cooled design allows for efficient heat transfer to the cooling water, resulting in lower energy consumption. Additionally, water-cooled chillers often have variable speed drive compressors that can optimize energy usage based on the cooling load.
Low Noise Levels: Water-cooled screw chillers tend to produce lower noise levels compared to air-cooled chillers. The condenser, which is the component generating most of the noise, is located in a separate area with the cooling tower or other water-cooling equipment, effectively reducing noise in the immediate surroundings.
Space Requirement: Water-cooled screw chillers typically require a dedicated cooling tower or external water source for heat dissipation. This design allows for smaller physical footprint compared to air-cooled chillers, which need space for the condenser fan unit.
Reliable Operation: Water-cooled screw chillers are known for their reliable operation and long service life. They are designed for continuous operation and can withstand high ambient temperatures and operating pressures. Regular maintenance and water treatment are essential to ensure efficient and reliable performance.
It's important to note that water-cooled screw chillers require a water source and proper water treatment to prevent scaling, corrosion, and biological growth. They are commonly used in industrial processes, data centers, large commercial buildings, and other applications that demand high cooling capacity and efficiency.
The working principle of the water cooled screw chiller is: When the unit is refrigerated, the compressor sucks the low-temperature and low-pressure refrigerant in the evaporator into the cylinder. After the compressor performs work, the refrigerant vapor is compressed into high-temperature and high-pressure gas.
Enter the condenser through the exhaust pipe. The high-temperature and high-pressure refrigerant gas exchanges heat with the cooling water in the condenser, and transfers the heat to the cooling water, while the refrigerant gas is condensed into a high-pressure liquid. The high-pressure liquid from the condenser enters the evaporator after being throttled and pressure-reduced by the thermal expansion valve. In the evaporator, the low-pressure liquid refrigerant absorbs the heat of the chilled water and vaporizes, so that the chilled water is cooled down and becomes the required low-temperature water. The vaporized refrigerant gas is sucked in by the compressor again for compression, and discharged into the condenser, so that it goes round and round, and circulates continuously, so as to realize the cooling of the chilled water.
The chilled water from the unit enters the indoor fan coils, variable air volume air conditioners and other terminal devices, and exchanges heat with convection air indoors. In this process, the water absorbs the heat of the indoor air (dissipates heat to the indoor air). While the temperature rises, the indoor air temperature drops after passing through the indoor heat exchanger, and is driven by the fan to send it into the room, thereby reducing the indoor air temperature, and the chilled water after the temperature rises reenters the unit under the action of the water pump. Circulation, so as to achieve the purpose of continuous refrigeration.
:Temperature control 5ºC to 35ºC
:Shell and tube evaporator and condenser
:Famous Brand semi-hermetic screw compressor
:Optional refrigerant R134a,R407c and R404a
:high quality Electrical Components
:PLC/ Touch Screen Control Panel
:No water tank, connect an external water tank
:Need to connect a cooling tower
:Safety protection devices of whole screw chiller
:All models and cooling capacity available
Compressor features:
•New screw type compressor with 20%-30% higher in efficiency.
•Cooling capacity control available at four steps (100%-75%-50%-25%), three steps (100%-66%-33%) or no steps control system.
•High efficiency, low noise and vibration, easy to install.
•Environmental protection refrigerant R134a, R407c available.
Control operation system:
•SIEMENS PLC program control system, human-computer interface with big LED touch panel, running state displaying in multi-language, and self-diagnosis for easy operation and supervision.
•Extended industrial interface, convenient for being computer monitor via network.
Completely safety protection function:
•Multi-safety protection by high and low pressure, compressor overheating, overloading, over temperature, flow switch, phase sequence, phase-missing, exhaust overheating and anti-freezing.
Specification:
| Item Model | OMC-100ADH | OMC-120ADH | OMC-150ADH | OMC-170ADH | OMC-200ADH | OMC-240ADH | ||
| Cooling Capacity | kcal/h | 282080 | 302376 | 404200 | 477988 | 562268 | 658416 | |
| KW | 328 | 351.6 | 470 | 555.8 | 653.8 | 765.6 | ||
| Ton | 93.3 | 100.0 | 133.6 | 158.0 | 185.9 | 217.7 | ||
| Btu/h | 1119454 | 1200000 | 1604096 | 1896928 | 2231399 | 2612969 | ||
| Input Power | KW | 99.4 | 112.6 | 152.2 | 179 | 210.4 | 238.4 | |
| Max.running Current | A | 242 | 264 | 342 | 394 | 464 | 554 | |
| Power | 3PH-380V/415V 50Hz (3PH-220V/440V 60Hz ) | |||||||
| Refrigerant | Type | R22 ( R407C ) | ||||||
| Charge quantity | kg | 70 | 84 | 106 | 120 | 140 | 170 | |
| Control Mode | Expansion Valve | |||||||
| Compressor | Type | Semi-Hermetic Screw | ||||||
| Power | KW | 46.1 x 2 | 51.9 x 2 | 69.9 x 2 | 81.7 x 2 | 96.2 x 2 | 109.4 x 2 | |
| Start-up Mode | Y-△ | |||||||
| Capacity control | % | 0-25-50-75-100 (0-33-66-100) | ||||||
| Evaporator | Type | Shell and tube | ||||||
| Chilled water flow | m3/h | 56.4 | 60.5 | 80.8 | 95.6 | 112.5 | 131.7 | |
| Pipe Diameter | lnch | 3" | 3" | 3" | 3" | 4" | 4" | |
| Condenser | Type | Air cooled high-efficient inner threaded copper-tubing aluminum fin type | ||||||
| Fan | Type | Low noise outer rotor | ||||||
| Power | KW | 7.2 | 8.8 | 12.4 | 15.6 | 18 | 19.6 | |
| Cooling air flow | m3/h | 100000 | 120000 | 150000 | 170000 | 200000 | 240000 | |
| Safety Protection | compressor over heat protection, over load protection,high and low pressure protection,reversed and lacking phase protection, anti-freezing protection, flow switch | |||||||
| Dimension | Length | mm | 4000 | 4800 | 6200 | 6800 | 7800 | 8400 |
| Width | mm | 1950 | 1950 | 2000 | 2000 | 2000 | 2000 | |
| Height | mm | 2200 | 2200 | 2200 | 2200 | 2200 | 2200 | |
| Net Weight | kg | 2860 | 3250 | 4200 | 4450 | 4850 | 5300 | |
| Running Weight | kg | 3020 | 3460 | 4430 | 4680 | 5120 | 5630 | |
Water-cooled screw chillers are widely used in various industries for their efficient cooling capabilities. Some common applications of water-cooled screw chillers include:
Air Conditioning: Water-cooled screw chillers are often used in large commercial buildings, such as shopping malls, hotels, office complexes, and hospitals, to provide central air conditioning. They can cool the air and maintain a comfortable indoor temperature in a cost-effective and energy-efficient manner.
Industrial Processes: Many industrial processes require precise temperature control to ensure product quality, improve process efficiency, or maintain equipment operation. Water-cooled screw chillers are utilized in industries such as food and beverage, pharmaceuticals, plastics, chemical processing, printing, and automotive manufacturing to cool process equipment and control temperatures during production.
Data Centers: Data centers generate a significant amount of heat due to the high-density racks of servers and networking equipment. Water-cooled screw chillers are used to remove heat from data center facilities and maintain proper cooling for the equipment, ensuring optimal performance and preventing overheating.
Power Generation: Power plants and electricity generation facilities often need cooling systems to remove heat from equipment, such as gas turbines, steam turbines, and generators. Water-cooled screw chillers are employed to extract heat and maintain the operating temperature of critical components, ensuring efficient and reliable power generation.
Refrigeration: Water-cooled screw chillers also find applications in refrigeration systems, such as cold storage warehouses, food processing facilities, and supermarkets. They provide the necessary cooling to preserve perishable goods and maintain low temperatures for storage and distribution.
Water-cooled screw chillers offer effective and efficient cooling solutions for a wide range of applications, providing precise temperature control, energy efficiency, and reliable operation in various industries.
FAQ
Q1: Could you help us to recommend the model for our project?
A1: Yes, we have engineer to check the details and make the scheme for you. Based on the following:
1)Cooling capacity;
2)chilled water inlet and outlet temperature
3)chilled water flow
4) Refrigerant;
5) Ambient temperature;
6)Voltage;
7) Be used for what industry?
8)Any other special requirements?
Q2: How to ensure your product with good quality?
A2: All our products with CE certificate. And use the well-know brand accessories. All OUMAL Chillers are factory tested under load conditions to ensure good quality and easy installation for users
Q3: What's the warranty?
A3: 15 months warranty for free if confirmed by both side damage in the quality reason.
Q4: Whats your payment term?
A4: We accept T/T, LC, Western Union, etc. Normally, 30% deposit for production, 70% balance before shipment.
Q5: Are you a manufacturer?
A5: Yes, we have more than 15 years in water chiller business. Also have patent on the water chiller appearance.The control box design make the unit safety and stably.
Q6: How can i Place an order
A6: Fill the table below to send an inquiry or Call us.
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