On the morning of December 7, 2023, Manager Qi of Nanjing Lishida Welding Technology Co., Ltd. conducted product training on rechargeable industrial mobile power supplies at the Nanjing Emergency Repair Station of the National Pipeline Network West-East Gas Transmission

In the morning, product system training was conducted, including product usage, welding technology, and daily maintenance knowledge, etc., focusing on the Sophim ES-5000PLUS rechargeable industrial mobile power supply device, which integrates high-power 220V output function and DC 200A welding function. First of all, its 220V output rated power can reach 4 kilowatts, and the instantaneous power can reach 8 kilowatts. It is suitable for powering various conventional household appliances and power tools, which brings great convenience to the use of electricity on the construction site. More importantly, this device is driven by a battery-driven inverter circuit, which is noise-free and pollution-free when in use. Compared with traditional fuel engines, it has also greatly improved the construction environment.

Secondly, its DC welding function is essential for the argon arc welding primer process in pipeline welding. The Sophim rechargeable industrial mobile power supply can not only weld special low-hydrogen and cellulose electrodes, but also transfer the use of argon arc welding with scratch arc initiation, so as to meet the different needs of welding process. The welding circuit of this equipment is different from that of conventional welding machines in design. Conventional welding machines are from AC input to DC output through rectification and inversion, while the welding circuit of Sophim ES-5000PLUS is from DC input to DC output. It is a pure DC welding machine, and the welding effect is far better than conventional welding machines. It is very suitable for various pipeline welding construction such as petroleum, petrochemical, and natural gas. At present, the Sophim ES-5000PLUS rechargeable industrial mobile power supply is used in major oilfield factories and mines at home and abroad, such as Nanjing Yangzi Petrochemical, Jinling Petrochemical, Yanchang Oilfield, Xinjiang Karamay Oilfield, etc.

Through explanation and case analysis of actual application, the participants at the meeting had a clearer understanding of the theoretical knowledge of rechargeable industrial mobile power supplies. The leaders of the Nanjing Emergency Repair Station of the West-East Gas Pipeline said that this rechargeable welding machine is much simpler and more convenient than the traditional welding methods. It can quickly reach the site for temporary welding such as emergency repairs and emergencies, and has strong mobility. The advantages of the equipment can be well utilized in emergency repair operations.

In the afternoon, the practical training of the equipment was carried out, focusing on the product performance and welding characteristics of the Sophim rechargeable industrial mobile power supply. After the actual operation of the welding master of the Nanjing Emergency Repair Station, the on-site leaders gave high affirmation and recognition, and said that the rechargeable welding machine will definitely play a greater role in the West-East Gas Pipeline Welding Project.