Six core advantages of Leitz magnetic suspension centrifugal refrigeration unit
01 Long service life
The magnetic suspension compressor adopts new materials of aerospace technology, with a service life of up to 30 years.
02 Mute without vibration
The magnetic suspension compressor operates completely without friction inside, and the operating noise is low.
03 Low starting current
The magnetic suspension compressor adopts a full DC variable frequency motor, and the starting current is only 2A, which has no impact on the power grid when starting.
04 High efficiency and energy saving
The magnetic suspension centrifugal water chiller adopts the design of high-efficiency heat exchanger, which fully improves the efficiency of the magnetic suspension unit under partial load, and the comprehensive energy efficiency ratio can reach more than 11.5.
05 Oil free system, high heat exchange efficiency
The magnetic suspension compressor adopts permanent magnetic bearings, which can suspend without friction during operation, get rid of dependence on lubricating oil, and improve heat exchange efficiency.
06 Sensitivity of load regulation
The load of magnetic suspension water chiller can be continuously adjusted between 10% - 100%. The full DC variable frequency compressor is adopted to respond to the load quickly, so as to ensure that the cooling capacity of the cold station can be delivered in time when the service conditions change abruptly, and improve the user experience.
Comparison between Leitz magnetic suspension chiller and traditional screw chiller
Intelligent control of Leitz magnetic suspension centrifugal chiller
1. Adaptive feedback load control technology
According to the terminal load, automatically calculate the cooling capacity required by the cold water system, simulate the combination of the operating host, water pump, cooling tower and valve in advance, and compare with the database in real time, optimize the operating data in advance to ensure the efficient and stable operation of the system.
2. Full frequency conversion and efficient fusion control technology
The water chiller is designed with full frequency conversion. The optimal power curve of the selected water chiller is programmed into the centralized control system in advance, and the optimal frequency and energy consumption curve of each component combination under different loads are automatically found according to the temperature sensing and pressure sensing signals, so that the energy can reach the optimal state.
3. Automatic equalization conversion technology
In case of sudden failure of equipment during operation, the standby equipment can be put into operation automatically without shutdown. At the same time, it has the function of statistics of equipment operation time and balanced operation scheduling, realizing automatic conversion, intermittent operation and extending equipment life. Flexible combination of units, strong design and installation applicability.
4. Correlation prediction
Establish a fault diagnosis model for the associated parameters of the chiller operation, predict the reliability of key components through the operation trend of the data, avoid sudden shutdown, at the same time, deduce the future energy consumption data according to the user's usage habits, establish a corresponding database, and ensure the safety of the long-term operation of the chiller.
5. Visual analysis of big data
Based on the big data uploaded to the remote service platform, an analysis model is established to visually display the operation of the chiller in the form of a chart, and the energy-saving scheme and control strategy are given to facilitate real-time optimization of the chiller operation.
6. Remote maintenance, unattended
All operating parameters can be uploaded to the remote service platform in real time through the MODBUS communication protocol, realizing the trinity platform of centralized control, host, software and hardware. The operation management personnel can modify the core parameters and operating status at the remote service terminal, shield the control and other terminal service modes, without on-site operation, So as to realize the efficient operation of remote maintenance unattended.
Application industry of Leitz magnetic suspension centrifugal refrigerator
Leitz keeps on exploring and advancing in the cutting-edge technology of refrigeration, always taking high efficiency, high reliability and long life as the direction of research and development, and is the preferred equipment for air-conditioning projects in hotels, hospitals, office buildings, shopping malls, textiles, electronic chemicals, machinery manufacturing, food, aquaculture and other industries.
