Introduction to the Advantages of Low-temperature Screw Parallel Units

I. High-efficiency Refrigeration Performance

1. Powerful Refrigeration Capacity: The low-temperature screw parallel unit is composed of multiple screw compressors connected in parallel. It can flexibly adjust the number of operating compressors according to the actual load change, thus achieving a wide range of refrigeration capacity output. Compared with a single compressor, its refrigeration capacity is much stronger, and it can meet the high refrigeration capacity requirements of large cold storage facilities, industrial refrigeration, and other applications.
2. Stable Low-temperature Output: The advanced control system can precisely adjust the operating parameters of the unit, ensuring that key indicators of the refrigeration system, such as the evaporation temperature and condensation temperature, remain stable under low-temperature working conditions, and thus achieving a stable low-temperature output. This is of vital significance for some technological processes with extremely high requirements for temperature stability, such as pharmaceutical storage and biological sample preservation.
3. Efficient Heat Exchange Technology: The unit is equipped with efficient evaporators and condensers, combined with optimized heat exchange tube designs and advanced heat exchange materials, which greatly improve the heat exchange efficiency. For example, the efficient spiral tube evaporator can fully utilize the latent heat of evaporation of the refrigerant, while the efficient air-cooled or water-cooled condensers can quickly dissipate heat, reducing energy loss and improving the overall energy efficiency of the unit.

II. Flexible Adjustment Performance

1. Adjustment of the Number of Compressors: Through the intelligent control system, the on and off of the parallel compressors can be automatically controlled according to the actual refrigeration load. When the load is low, only some compressors need to be turned on to meet the demand, reducing energy consumption. When the load increases, more compressors are gradually started to ensure an adequate supply of refrigeration capacity. This flexible adjustment method not only improves the energy utilization efficiency but also extends the service life of the compressors.
2. Energy Adjustment Function: Each screw compressor is equipped with an energy adjustment device, which can achieve stepless adjustment within a certain range. For example, through the slide valve adjustment technology, the refrigeration capacity of the compressor can be continuously adjusted between 10% and 100%, which can more accurately match the actual load changes and avoid the problem of low efficiency of traditional refrigeration units during partial load operation.

III. High Reliability and Stability

1. Redundant Design: The multi-compressor parallel structure of the low-temperature screw parallel unit itself has a certain degree of redundancy. When one compressor fails, the other compressors can still continue to operate, maintaining a certain refrigeration capacity and ensuring the basic operation of the system, reducing the downtime and losses caused by equipment failures.
2. Selection of High-quality Components: The unit selects key components such as internationally renowned brand screw compressors, efficient heat exchangers, reliable valves, and controllers. These components have undergone strict quality inspections and actual operation verifications, and have good performance and reliability, fundamentally ensuring the stable operation of the unit.
3. Complete Protection Functions: It is equipped with a variety of protection devices, such as high and low-pressure protection, oil level protection, motor overload protection, phase loss protection, etc. When an abnormal situation occurs in the system, the protection devices can act in a timely manner, cut off the power supply, or take corresponding measures to avoid equipment damage and ensure the safe operation of the unit.

IV. Energy-saving Advantages

1. Energy Saving under Partial Load: Due to its flexible adjustment performance, during partial load operation, the low-temperature screw parallel unit can reduce the energy consumption of the system by reducing the number of operating compressors and adjusting the energy output of the compressors. Compared with traditional fixed-frequency refrigeration units, the energy-saving effect is particularly remarkable under partial load working conditions, which can effectively reduce the operating costs of users.
2. Energy Saving of the Intelligent Control System: The advanced intelligent control system can monitor the operating parameters of the system in real-time and automatically adjust the operating mode of the unit according to the actual load and environmental conditions. For example, it can automatically adjust the fan speed of the air-cooled condenser according to the change of the outdoor temperature, or optimize the operating combination of the compressors according to the change of the refrigeration load to achieve energy-saving operation.

V. Easy Maintenance and Management

1. Centralized Control: The low-temperature screw parallel unit adopts a centralized control system, allowing operators to monitor and manage the entire unit through one operation interface. The system can display the operating status, various parameters, and fault alarm information of the unit in real-time, facilitating operators to promptly understand the operating situation of the unit and make corresponding adjustments and maintenance.
2. Modular Design: The unit adopts the modular design concept, with relatively independent components and a compact structure, making it easy for installation, disassembly, and maintenance. When a component fails, it can be quickly replaced, reducing the maintenance time and difficulty. At the same time, the modular design is also conducive to the expansion and upgrading of the unit. Users can add compressors or other components at any time according to actual needs to meet the growing refrigeration demand.