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Schlee (China) Refrigerating Equipment Manufacturing Co.,Ltd

Add:Jupu Road, Pukou Development Zone, Nanjing City, Jiangsu Province, China

Contact us:Cherry





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Air Cooled Screw Chiller Widely Used
- Jul 24, 2017 -

Screw-type chiller because of its key components of the compressor screw type is named screw-type freezer. According to the different cooling methods can be divided into water-cooled screw-type freezer and air-cooled screw-type two.

Screw-type chillers cooling capacity range from 100kw / h to 860kw / h, Air Cooled Screw Chiller screw compressor power from 38KW-178kw, can be widely used in the cooling capacity of a huge variety of industries, a total of 10 models to choose from. Then we choose screw-type chiller, Air Cooled Screw Chiller which should proceed from it?

1, the choice of screw chiller should be in accordance with the cold load and ready to use for what to think about. For low-load operating conditions longer cooling system, suitable for multi-head screw compressor unit, Air Cooled Screw Chiller easy to conditioning and energy saving, that is, Air Cooled Screw Chiller we often say that the dual-head screw-type freezer or three-head screw-type freezer, With the load changes, chillers automatically determine the capacity of the compressor to ensure that the compressor is in the best working condition, thus saving energy.

2, the choice of screw-type freezer, Air Cooled Screw Chiller give priority to the higher coefficient of performance unit. According to the previous data statistics, the normal refrigeration unit throughout the year under the 100% load running time accounted for about 1/4 of the run time. Air Cooled Screw Chiller The operating time of 100%, 75%, 50% and 25% load in the run time is roughly 2.3%, 41.5%, 46.1% and 10.1% respectively. Therefore, Air Cooled Screw Chiller in the selection of chillers should give priority to the efficiency curve of the flat chiller model.

Water-cooled semi-sealed screw chillers are a central air-conditioning product with water as the cooling medium. Compared with the same cooling air-cooled units, Air Cooled Screw Chiller the condenser and the evaporator are made of special high-efficiency heat transfer tubes, so the structure is compact , Small size, high efficiency; and because there is no condensing fan, and thus low noise.

In the water-cooled semi-sealed screw chillers manufacturing has a mature technology, Air Cooled Screw Chiller improve the technology and advanced detection equipment, Air Cooled Screw Chiller coupled with the selection of world-class accessories to ensure that the unit's stable and efficient operation.

Water-cooled semi-closed screw chillers can provide cold water for central air-conditioning systems such as hotels, hospitals, pharmaceutical plants, theaters, Air Cooled Screw Chiller stadiums, recreation centers, commercial buildings, industrial and mining enterprises, etc., as well as textile, chemical, food, electronics and scientific research And other departments to provide refrigeration and so on.

1, the unit has been the factory control cabinet and the main motor, Air Cooled Screw Chiller control cabinet and electrical actuator, control cabinet and the pressure temperature and other sensing elements connected between the connection. The wiring of the unit to the customer site is simple. Freezing and cooling water pump linkage control line (control contact for the passive contact); with cooling tower control to be connected to the frozen, Air Cooled Screw Chiller cooling water flow switch; and frozen, cooling water pump, Air Cooled Screw Chiller cooling tower fan linkage control line (control contact for the passive contact ).

2, chilled water and cooling water piping are equipped with target flow controller, chilled water and cooling water system target flow controller normally open contact by wiring diagram were connected to the control circuit.

Note: Due to the disruption of the flow may cause the flow switch to malfunction, so the control cabinet will be in a continuous 3 seconds (can be set) within the time to get off the signal to let the unit downtime.

3, the installation of the temperature probe should be injected into the chilled water outlet temperature does not condense thermal grease, Air Cooled Screw Chiller in order to facilitate heat transfer, temperature devices should be closed insulation measures.