Air-Cooled Screw Cold Water Chiller Set for Aluminium Anodizing Process

1, matching brand high quality, high efficiency compressor, to ensure the high eer: unit adopts the semi-enclosed twin-screw screw compressor, compared with piston compressor, semi-hermetic screw compressor has the following advantages:

(1) fewer moving parts (about a third of piston compressor), simple structure, less wearing parts, high reliability, long service life.

(2) The compressor has uniform and continuous suction and exhaust, small vibration, insensitive to wet compression, and strong anti-liquid shock ability;

(3) In terms of energy regulation, screw compressor has more advantages, which can automatically adjust energy between 25 ~ 100% according to demand through the slide valve; Segment regulation, stepless regulation can be realized.

2, matching high efficiency finned air cooling condenser:

(1) In order to adapt to the situation of China with large dust content and more dust in the air, the air cooled condenser uses unique fin shape and structure, strengthening the flat plate type aluminum fin is made of imported special processing equipment, which makes the heat transfer effect significantly improve at the same time, the surface is not easy to accumulate dust, but also easy to clean, and prevent germs from breeding on the fin. Ensure good heat transfer capacity of the heat exchanger.

(2) The aluminum fin surface of heat exchanger is specially treated to improve the corrosion resistance of the fin and the durability of the heat exchanger is greatly improved.

(3) Air cooled condenser uses copper tube jacket aluminum fin structure, its aluminum fin, heat exchange tube are imported materials, anti fouling, corrosion resistance. Copper tube, corrugated aluminum fin by mechanical expansion tube, so that the combination of tight, high heat transfer efficiency, heat transfer coefficient; The supporting plate of the tube plate of the heat exchanger is made of high quality stainless steel plate. Strong corrosion resistance and high durability.

(4) Advanced cleaning technology is adopted in the process of condenser processing, which improves the surface cleanliness of heat exchanger, so as to ensure the efficient heat exchange capacity of heat exchanger.

(5) The unique heat exchanger refrigeration process is adopted to match the air volume and the head-on wind speed reasonably, to ensure the balance between the refrigeration process and the cooling capacity of the wind side, to give full play to the refrigeration capacity of the compressor and the heat exchange capacity of the heat exchanger, so that the unit is efficient and energy-saving.

(6)The condenser adopts the unique "inverted M" layout, compact structure, small area, uniform air flow, to overcome the phenomenon of short circuit of the condenser air flow, give full play to the heat transfer ability of the condenser.

3. Dry shell and tube evaporator matching high efficiency heat exchange tube:

(1) The most advanced DAE high efficiency evaporation heat transfer tube is adopted, with multiple spiral ribs and spiral protruding on the tube surface, which greatly improves the heat transfer coefficient and heat transfer capacity.

(2) The internal structure of the evaporator adopts fluid optimization design, and is equipped with an efficient liquid homogenizer, which solves the problem of the uniformity of the distribution of refrigerant in the system, and the heat exchange efficiency is increased by 5% compared with the conventional strengthened heat exchanger;

(3) Improve the sealing structure of the refrigerant water baffle, solve the problems of the baffle leakage, greatly improve the heat transfer efficiency of the evaporator, and reduce the resistance of the water flow, so as to ensure that the unit can achieve a higher performance level;

(4) Using the unique heat exchanger refrigeration process design technology, reasonable system matching, ensure the cooling process and water side cooling capacity balance, give full play to the heat exchanger high efficiency; At the same time, reasonable system matching makes the unit more energy saving.

(5) The dry evaporator is also installed on the anti-freezing protection switch, water valve, to ensure the safety of the dry evaporator and the convenience of cleaning and maintenance.

4, matching efficient, low noise fan:

(1) Using airfoil, large torsion Angle space distortion special fan blade, high mechanical efficiency, low vibration, low noise, no fault, long operation life.

(2) The motor is corrosion-resistant and has long life; After strict dynamic and static balance test, the machine has high efficiency, small vibration and low noise.

5.The unit vibration avoidance design, to ensure the unit low noise, low vibration:

(1) The compressor set below the spring or rubber shock absorber, vibration reduction efficiency of more than 85%, that is, vibration transmission rate is less than 0.15, reduce the vibration of the unit and system vibration, so as to reduce the noise of the unit.

(2) All pipelines of the unit system are fixed with anti-vibration plastic pipe clip to avoid the noise caused by the vibration of the unit and the system.

6, matching famous brand refrigeration system accessories:

① The refrigeration system accessories used by the unit all choose the products of famous brand manufacturers, such as detachable filter dryer, external balance type thermal expansion valve, liquid supply solenoid valve, liquid mirror, high and low pressure controller, exhaust temperature controller, etc., all use the world's first-class famous brand manufacturer's products, to ensure that the unit has a high level of performance.

② All the materials of the unit can be entered into the factory after 100% inspection, to ensure the high reliability of the refrigeration system of the unit.

7. Match advanced and highly reliable intelligent control system and control technology:

① The multi-unit control system not only has the automatic configuration and function of single unit, but also has the operation display of multi-unit. According to the temperature of the backwater, the computer can automatically determine whether the air conditioning system is operated by some units or all units, and it is equipped with RS485/RS232 communication interface, which is convenient for users to realize centralized control.

② The unit can control the balanced operation of multiple compressors. Ensure efficient operation of unit.

8. Energy regulation mode of the unit: The unit carries out logical calculation according to the return water temperature of the chilled water, and controls the running state of the unit and the start and stop of the unit. Each unit adopts four levels of energy regulation to realize efficient and energy-saving operation of the unit.

9, the unit structure is reasonable, the unit has good corrosion resistance

(1) The unit adopts the form of frame structure, compact structure, firm structure, has good mechanical strength, small size, small footprint, uniform wind, no air short circuit phenomenon.

(2)The outer surface of the unit is treated by spraying plastic, anticorrosion and rust prevention, the surface is smooth, neat, smooth and beautiful in appearance.

(3)The modular design, wide product adaptability, parts interchangeability, flexible combination of a variety of models, in the most efficient way to provide users with the most thoughtful service.

(4) The layout of the unit is reasonable. According to ergonomics, the installation and maintenance space is optimized to facilitate daily cleaning, maintenance and overhaul.

10, installation and commissioning, maintenance and management is convenient and quick:

(1) The unit in the form of the whole factory, the low-pressure part of the factory before the package of insulation, the system has been filled with fluorine refueling, after the arrival of the site only need to be connected to the water pipe. After the power is connected, the unit can be turned on.

(2) The computer will automatically start the pump motor, compressor and condensing fan according to the program, and coordinate the control of refrigeration, heating, delay, interlocking, protection and automatic temperature regulation of the unit.

(3) Unit under computer control according to the set temperature, and according to the evaporator water temperature changes automatically refrigeration, heating energy regulation. The unit can be flexibly installed, which can be controlled on-site or remotely. The compressor, refrigeration accessories and electronic control system are all placed at the lower part of the unit in an open structure, easy to check and maintain.