Low temperature water-cooled screw chillers with a temperature range of -20 ℃ are widely used in industries such as food and beverage, new materials, chemical reaction vessels, plastics, and new energy. The cold water output range is from -20 ℃ to 0 ℃, and can be fully customized according to customer requirements.

The standard operating condition -15 ℃ low-temperature water-cooled screw chiller unit includes HLW xxS (D) calcium chloride salt water medium and HLW xxS (D) ethylene glycol medium, with a controllable temperature range of -21 ℃~0 ℃. Adopting water-cooled cooling method results in higher operational efficiency of the equipment.

■ Unit Overview

The HLW series low-temperature screw chiller/chiller unit uses a semi sealed screw compressor that can operate without failure for 8-10 years; Fully automated control, implementing unmanned operation; And equipped with high-quality energy-saving devices to improve the performance of the unit. As the flagship product of Bingtong Company, it is the fruitful result of years of technological accumulation. After years of market validation, it has gained recognition from a wide range of users and achieved excellent results.

■ Configure components

Compressor: Adopting a 5:6 asymmetric twin-screw rotor semi enclosed compressor, the motor and compressor are integrated without leakage design;

Condenser: Select high-efficiency shell and tube condenser with internal threaded heat exchange tubes;

Evaporator: Shell and tube evaporator, compact structure with good heat transfer effect; Materials such as copper, brass, stainless steel, and titanium alloy can be selected to ensure the economic efficiency and safe use of the machine;

Expansion valve: internationally renowned brands such as Emerson or Danfoss have balanced flow port type electromagnetic expansion valves, which are not affected by condensation pressure;

Electrical control system: Siemens PLC controller+digital analog touch interface for fully automated control, automatic fault reporting and all-round protection;

Protection system: multiple protections such as high and low voltage protection, waterproofing, heat protection (dual), safety valve, overload protection, under phase, reverse phase, under voltage, over-voltage, water flow protection, etc. make the operation of the unit safer;

Refrigerant: R22 refrigerant is mainly used, and various environmentally friendly refrigerants such as R134A, R407C, R404A can be selected;

Power configuration: Standard 3P-380V-50HZ, optional 110V-480V, 50-60HZ and other different power supplies.

■ Main applications

The HLW series low-temperature screw chiller has a wide range of applications, including air conditioning, injection molding, profiles, pipes, electroplating, painting, electronics, medicine, etc

Chemical, food and beverage, grain and oil processing, solar photovoltaics, and refrigeration and freezing industries.