◆ Mold cooling in the plastic industry
◆ Cooling of electroplating tanks in the electroplating industry
◆ Cooling with ultrasonic cleaning solution
Various cooling methods in the chemical industry
◆ Various cooling methods in the food industry
◆ Central air conditioning in various industries
◆ Cooling and constant temperature in dust-free workshops of various industries
Features of water-cooled screw
Chillers:
compressor
Adopting German Bizel/Taiwan Fusheng/Hanzhong semi enclosed screw compressors and original twin screw series compressors. The linear design with a 5-6 tooth ratio for twin screws saves energy.
Active valve energy control, achieving graded or stepless energy control. Balanced design, stable and stable operation.
Strict handling of moving parts, design of exhaust oil balance block, long maintenance cycle, and trouble-free operation for over 40000 hours.
Efficient oil separator, with exhaust gas carrying less than 1.5% of oil, heat exchange between the two devices, energy-saving.
New evaporator
Using CAD/CAM design and processing technology, the CNC machining center is completed, with a compact structure and compact volume. The U-shaped heat exchange tube bundle can be pulled out as a whole to clean internal scale, facilitating maintenance and repair.
Dry evaporator for easy oil return, compressor life, and system stability.
Water-cooled condenser
Utilizing CAD/CAM design and processing technology, combined with CNC machining center production, it has a compact structure and high stability. Beautiful appearance and energy-saving.
Microprocessing control system
The centralized control of the PLC unit, combined with the adjustable system of the compressor, can timely and accurately control the matching of the refrigeration capacity and cooling load of the unit, ensuring efficient operation of the unit and reducing operating costs. Internal integration of water interruption, low temperature, high and low pressure, antifreeze, phase loss, and extension
Multiple safety protection and handling functions such as startup, reverse phase, overload, motor overheating, and oil pressure difference. Full Chinese operation interface (can be converted between Chinese and English), menu style prompt, and the operation status of the unit can be set arbitrarily, providing a home appliance operating environment.
Easy to install
1) Balanced and safe operation, low vibration, and easy installation;
2) The unit has a compact structure, small footprint, light weight, and is easy to handle;
3) Complete various performance tests and wiring before leaving the factory to reduce installation time and costs.
Stable operation
1) The unit adopts multiple refrigeration circuits;
2) Implement interlocking control between the water system and the unit;
3) Compressor unloading and depressurization start, with low starting current;
4) The motor adopts PTC thermal protection.
| Parameter table for double head of water-cooled Screw Chiller | | Model KNR- | 300WD | 360WD | 420WD | 490WD | 560WD | 620WD | 710WD | 860WD | | Refrigeration capacity | X1000kal/h | 258 | 310 | 361 | 421 | 482 | 533 | 611 | 740 | | kw | 300 | 360 | 420 | 490 | 560 | 620 | 710 | 860 | | ton | 85.3 | 102.4 | 119.4 | 139.3 | 159.2 | 176.3 | 201.9 | 224.5 | | voltage | 3PH-380V-50/60HZ | | compressor | Power KW | 30*2 | 36*2 | 41*2 | 97 | 56*2 | 61*2 | 70*2 | 85*2 | | Operating current A | 102 | 122 | 140 | 165 | 190 | 206 | 238 | 290 | | Ability regulation | 0-25%-50%-75%-100% | | Protective devices | Phase sequence protection, overcurrent protection, anti ice protection, exhaust temperature protection, high and low pressure protection, water flow protection, safety valve | | condenser | Shell and tube type | | Inlet and outlet pipe diameter of condenser | 3"*2 | 3"*2 | 3"*2 | 3"*2 | 3"*2 | 4"*2 | 4"*2 | 4"*2 | | Cooling water flow rate (m3/h) | 61.9 | 74.3 | 86.3 | 101 | 115.6 | 127.6 | 146.2 | 177.2 | | evaporator | Shell and tube type | | Evaporator inlet and outlet pipe diameter | 4" | 4" | 4" | 5" | 5" | 5" | 5" | 6" | | Frozen water flow rate (m3/h) | 51.6 | 61.9 | 72.2 | 84.3 | 96.3 | 106.6 | 122.1 | | | Overall dimensions (MM) | L | 2750 | 3200 | 3200 | 3400 | 3400 | 3350 | 3350 | 4050 | | W | 800 | 900 | 900 | 900 | 900 | 900 | 1100 | 1400 | | H | 1650 | 1750 | 1750 | 1750 | 2000 | 2050 | 2100 | 2100 | | 3739 | 3742 | 3743 | 3744 | 3745 | 3747 | 3748 | 3749 | 3750 | |
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