Description
AIR-COOLED SCREW-TYPE
CHILLED(HOT)WATER UNITS
PRODUCT OVERVIEW
The design and manufacturing process of the air-cooled screw chiller (heat pump) unit strictly complies with national and relevant industry standards. The unit adopts the world’s advanced high-quality, high-efficiency semi-hermetic twin-screw compressor, high-quality condenser fans, and a reliable microcomputer control system. Through optimized design, rational configuration, and meticulous assembly, the unit achieves a high degree of operational reliability.
This series of units uses air as the cooling (or heating) source and water as the refrigerant (coolant) carrier, making it a central air-conditioning system that integrates both cooling and heating functions.
The series features a rational structure, easy operation, reliable performance, high energy efficiency, low noise, and convenient installation and maintenance. It can serve as the cooling and heating source for comfort air-conditioning systems in various buildings and facilities such as shopping malls, residences, office buildings, commercial complexes, factory workshops, hotels, and hospitals, as well as for process air-conditioning systems in industries including electronics, pharmaceuticals, biology, chemicals, power systems, and machinery.
PRODUCT FEATURES DESCRIPTION OF UNIT TYPE
Wide range of cooling capacity from 170kW to 1120kW for R22 refrigerant, 96kW to 546kW for R134a, and multiple combinations.Easy to install
All the units are assembled in the factory and shipped after strict operation and debugging, and the on-site installation only requires the connection of the power supply and water system pipeline, and then it can be operated and run.space-saving
This series of units can be directly installed on the roof, podium, courtyard or horizontal ground of the building, without the need to set up another machine room.No-fit cooling towers
This unit adopts air circulation heat dissipation method, simple water system, convenient management and maintenance, especially suitable for places where cooling tower cannot be installed or water shortage.
Cost savings
Save on cooling tower, cooling system plumbing system material cost, installation cost, operation cost and maintenance cost, etc.
Easy operation
The unit adopts microcomputer control, which can be operated directly through the panel or remotely started. The interface of computer controller is simple, full Chinese display, easy to operate. The panel can display the operating status of the unit, operating data and fault alarm status. At a glance, easy to manage.
High energy efficiency and low noise
The unit adopts high-efficiency semi-closed double-screw compressor, brand-name condensing fan and high-quality refrigeration accessories, and after careful optimisation of design and assembly as well as rigorous testing, the unit is characterised by low operating noise, low vibration and high reliability. It improves the ability of the unit to work in harsh environments. The automatic temperature control system of the unit makes the unit load adjustment automatically when the temperature of chilled water (hot water) is close to or reaches the set value, saving electric energy.
Attractive appearance, strong corrosion resistance
The shell of the unit is made of galvanised steel and treated with powder electrostatic plastic spraying, which is durable.
PRODUCT MAIN COMPONENTS
Compressor
The compressor adopts positive displacement double helix design, using R-22 or R-134a refrigerant, the compressor consists of two intermeshing helical rotor, driven by the yang rotor, the yin rotor, double torsion positive displacement constitutes a pure rotary action, so that the vibration is extremely small, the operation range is wide, from suction, compression to the discharge of the process of high efficiency, smooth airflow characteristics. Compressor lubrication and airtight using differential pressure oil supply method, without the need of Compressor lubrication and airtightness is by differential pressure oil supply, no lubricant pump is needed.
The compressor is equipped with a built-in high-efficiency oil separator, which is integrated into the compressor to minimise the compressor’s profile and simplify the refrigerant circulation process. Under special operating conditions, an external oil separator is available.
The solenoid valve and the slide valve driven by the hydraulic system constitute a floating capacity adjustment system, which can conveniently achieve part-load operation, and the compressor can be adjusted in segments from 25% to 100%. Fuzzy control theory can also be used to control the way to achieve stepless energy regulation, to achieve full matching with the building load.
Compared to piston compressors, semi-hermetic screw compressors offer the following advantages:
Fewer running parts (about 1/3-1/4 of the piston compressor), simple structure, fewer wearing parts, high reliability and long life.
Uniform and continuous suction and exhaust, no pulsation phenomenon, low exhaust temperature, small running vibration, insensitive to wet compression, strong resistance to liquid strike.
Finned condenser
The finned air-cooled condenser adopts seamless purple copper tubes and special aluminium fins with secondary stamping and flanging technology and double corrugated sheet type, and the copper tubes and fins are tightly bonded by the mechanical upturning of the tubes to achieve the best heat exchanging effect.
The condenser adopts inverted M-type layout to improve the airflow organisation and make full use of the area of the air-cooled condenser, which makes the efficiency greatly improved.
OUTLINE DRAWING OF THE UNIT
R22 refrigerant unit external dimensions
Reviews
There are no reviews yet.