详情描述

The O'Snow AS Series integrated water-cooled screw type industrial chiller mainly features the following:
1. Integrated system energy-saving, outdoor rainproof design without need for a machine room: An integrated water-cooled screw industrial chiller combines optimized refrigeration system components, integrating the system components, pump, and cooling tower, achieving system integration and energy-saving. The entire unit is designed with rainproof sheet metal and can be directly placed outdoors, eliminating the need for a machine room and saving on machine room construction costs.
2. Programmable PLC control allows for one-touch operation, enabling the entire refrigeration system to operate fully automatically: Features one-touch remote and on-site shutdown/startup, along with program operation; once activated, the refrigeration system runs automatically based on the cooling load, with interlinked communication and control among all system components for coordinated operation.
3. Industrial-grade High-configuration and High-standard Design: Utilizing high configuration and ideal system integration to cast high-quality products, professionally designed by an industrial-grade standard team, featuring low noise and minimal vibration, designed according to industrial standards, suitable for continuous 24/7 operation throughout the year.
4. Integrates multiple innovative technologies, ensuring energy-saving, stable, and excellent performance of the product.
1) Economizer Energy-Saving Technology: Saves more than 5% of energy compared to non-economizer units.
2) PLC Programmable Logic Controller Technology: Achieves communication and control of start/stop signals for equipment like water tower pumps, avoiding unnecessary energy loss.
3) Vapor-Liquid Separation Technology: Ensures that the shell-and-tube heat exchanger effectively exchanges heat and that the refrigerant liquid returns to the evaporator for complete evaporation and subsequent reheat.
4) Low-Temperature Oil Cooling Technology: Utilizes low-temperature refrigerant to cool the refrigerant oil, then injects it into the compressor to fully lubricate the internal moving parts and dissipate the heat generated by the motor, preventing long-term high temperatures within the motor. This ensures the motor operates with high stability and longevity, as well as the flexibility of the moving parts.
5. Compact structure, superior performance, and stable operation:
Utilizing high-quality imported twin-screw bearings, the moving parts are only 1/10 of those in a reciprocating compressor, and the vibration is only 1/5. Both radial and axial components are equipped with precision German FAG and Swedish SKF bearing sets, complemented by an axial thrust balancing drum to effectively balance axial loads. The failure rate is just 1/10 of a reciprocating compressor, and combined with world-renowned control components, ensures the unit operates safely and stably for an extended period. The unit's condenser and dry evaporator both use heat exchangers, with the main unit featuring an imported semi-hermetic twin-screw compressor, offering advantages such as compact structure, small size, light weight, and minimal installation space. The semi-hermetic twin-screw compressor has fewer moving parts, using a 5:6 screw rotor design, with no direct wear between rotors, ensuring high reliability. As the screw compressor is a continuous unit without pulsations, the integrated water-cooled chiller unit boasts stable performance, low noise, minimal vibration, and smooth operation.
6. Comprehensive Energy Control System
The integrated water-cooled industrial chiller features a four-level and stepless capacity control system, energy regulation: [100, 75, 50, 25 (or start, 0%)], automatically adjusting the chiller's start/stop based on load changes for greater energy efficiency. During operation, the computer control system adjusts the chiller's energy output according to the client's thermal load changes. The microcomputer quickly judges and sends signals to push the throttle valve to the required energy level based on the difference between the actual measured load and the user's settings. Additionally, in multi-system configurations, it operates optimally with minimal electrical consumption when delivering ideal cooling capacity, demonstrating excellent performance not only at full load but also at partial load with high operational efficiency.
7. Refrigeration System - Standby Operation
The high-capacity integrated water-cooled screw industrial chiller features two or more refrigeration circuits, ensuring that the system can continue to operate normally even if one circuit fails or requires maintenance. It comes with backup functionality, making it particularly suitable for use in industrial environments where continuous operation is critical; The imported PLC human-machine interface is a liquid crystal touch screen with graphical display, offering easy operation and the option to select between English and Chinese. Equipped with an RS485 national standard communication interface, it can be connected to DCS systems and integrated into the entire factory's automated network, facilitating remote control and monitoring. The system displays parameters in both graphical and tabular text formats for easy visibility; operations are performed by selecting options from the screen menu and directly touching the display buttons with a finger.
8. Microcomputer programmable PLC controller with multiple protection functions:
Over-temperature protection for compressor coil, oil pre-heating timer on/off switch, cold water flow switch, low cold water outlet temperature protection, Y-△ start failure protection, exhaust gas over-temperature protection, compressor overload protection, power failure memory function, frequent start/stop protection, abnormal voltage protection, low oil level protection, high/low pressure protection, etc.
9. Multi-layer Protection, Safe, Reliable, and Stable: Offers comprehensive protection for the refrigeration system, electrical system, and water system, ensuring the unit operates safely and reliably. Equipped with safety protections such as compressor motor overheating, overcurrent, phase sequence error, excessive exhaust temperature, high pressure, low pressure, low pressure difference, freezing point, and open circuit, etc. The pressure control devices in the refrigeration system ensure the unit operates without fail; in addition to the compressor's internal protection module offering over/under voltage, phase loss, and overload protection, the pressure control devices in the refrigeration system further ensure the unit operates without fail.
10. Easy installation and prompt operation for use:
Industrial-grade testing platforms ensure that all component installations, operation debugging, and testing under various conditions have been completed within the factory. This guarantees that each piece of equipment is qualified for shipment, pre-filled with refrigerant and lubricating oil. Users only need to connect the water and electrical systems to put the equipment into operation, significantly reducing on-site installation and debugging time.
Please contact NuoLeng's service staff for more integrated water-cooled screw industrial chiller services.