Best Water Cooled Screw Chiller

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Water cooled screw chiller is widely used in industrial production such as plastics, electronic manufacturing, electroplating, pharmaceutical chemical industry, ultrasonic cooling, printing, etc. It can precisely control the temperature required by modern industrial mechanized production, thereby greatly improving production efficiency and product quality. The water cooled screw chiller is easy to operate, reasonable in design and excellent in quality. There are hundreds of specifications, and it is an indispensable equipment for modern industrial production.

Features of water cooled screw chiller

1. The unit selects imported famous-brand compressors with built-in safety protection, low noise, energy saving and durability.

2. Imported water pump, large flow, high efficiency, durable.

3. Equipped with imported precision digital display temperature controller, which can accurately control the water temperature ±0.5℃.

4. All stainless steel thick water tank, coil evaporator, built-in water supply and other devices, easy to clean and maintain.

5. The condenser of the water cooled screw chiller is a shell-and-tube type, with internal threaded copper tubes, reasonable design, and good heat exchange effect.

6. The appearance of the unit is beautiful and generous, and the outer panel adopts the form of quick disassembly and assembly, which is convenient for use and maintenance.

7. Equipped with various safety protection devices, with stable performance, low noise, long service life and simple operation; the liquid crystal display human-machine interface is adopted, which is simple and convenient to operate, and the operating status is clear at a glance.

8. Adopt single compressor or multi-compressor combined refrigeration system. The compressors can automatically run alternately according to load changes, balancing the running hours of each compressor, achieving the effect of saving energy and extending the service life of the chiller. Facilitates energy regulation and is more energy efficient at part load.

Installation requirements of water cooled screw chiller

1. Before installation, please choose a place with a stable foundation, open surroundings, unobstructed and free from corrosion, pollution, sun, rain, and convenient for installation and maintenance;

2. Select the matching cooling water tower according to the cooling capacity of the chiller (the air-cooled type does not need a water tower), and the piping of the chiller should be installed according to the throat size of the fuselage. Do not reduce the size of the cooling pipe, which will cause high pressure overload. Affect cooling effect and increase power consumption.

Points to note when choosing water cooled screw chiller:

1. The main control parameters of water cooled screw chiller are the coefficient of cooling performance, rated cooling capacity, input power and refrigerant type, etc.

2. Consider according to the cooling load and usage. For refrigeration systems with low-load operating conditions for a long time, it is advisable to choose multi-head piston compressor units or screw compressor units to facilitate the adjustment of energy saving.

3. When choosing a water cooled screw chiller, give priority to units with higher performance coefficients; according to data statistics, the operating time of general chillers under 100% load throughout the year accounts for less than 1/4 of the total operating time. The proportions of 100%, 75%, 50%, and 20% load operating time in the total operating time are 2.3%, 41.5%, 46%, and 10.1%. Therefore, when selecting chillers, give priority to models with relatively flat efficiency curves. At the same time, the load adjustment range of the chiller should be considered when designing and selecting. The multi-head screw chiller has excellent performance at part load and can be selected according to the actual situation.

4. When choosing a water cooled screw chiller, pay attention to the nominal working conditions; the actual cooling capacity of the chiller is related to the following factors: cold water outlet temperature and flow; cooling water inlet temperature, flow and fouling coefficient.

5. When choosing a water cooled screw chiller, pay attention to the normal working range of this type of unit, mainly because the current limit of the main motor current is the current value of the shaft power under the nominal working condition. Under the nominal flow rate, the outlet temperature of the cold water should not exceed 15°C, and the outdoor dry bulb temperature of the air-cooled unit should not exceed 43°C. If it exceeds the above range, it is necessary to know whether the use of the compressor is allowed and whether the power of the main motor is sufficient.

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