Energy-saving renovation project of Shanghai XX Automobile Motor Co., Ltd.

Shanghai XX Automobile Motor Co., Ltd.，usage before the transformation:1 set others brand 37kw screw air compressor and 1 set ziqi frequency inverter 37kw single stage screw air compressor.ZIQI company learned that the customer's factory air consumption and has formulated one set of ziqi two stage variable frequency compression screw compressor GAT-55A CFV to replace the existing two air compressors.

On-site photos of the customer's air compressor room before the renovation：

On-site photos of the customer's air compressor room after the renovation:

Pre-transformation data（2024.2.26):

Data calculation before transformation：

Post-transformation data(2024.2.28)：

Calculation of data after transformation：

Standard total power consumption =Total power consumption / Total air capacity (unit:kW·h/Nm3)

Through the comparison of recorded data, it is obtained that: 0.124-0.2075=0.0835 kW·h/Nm3, the overall energy efficiency after the transformation is reduced by 0.0835kW·h/Nm3 compared to before the transformation;

Monthly energy saving: 0.0835kW·h/Nm3×3139.67Nm3×26 days=6,816 kW·h/month

One year can save electricity: 6816kW ·h/month *12 months = 81,792kW·h

After the renovation of the project is completed, the energy saving will be about 82,000 kW·h/year