The fluid transportation pipes capitalize on the seasonal decline in temperature during late autumn by implementing reasonable operational measures for the cooling tower fans and the axial flow fans used for temperature reduction in the pump house. This has effectively reduced electricity consumption. According to calculations by professional management departments, this alone results in a cost reduction of nearly RMB 100,000 per month. During daily production operations, 15 sets of cooling tower fans operate simultaneously at full capacity, with a total power consumption of up to 1600kW per hour, making them significant energy consumers. Given the specific requirements for water medium supply in the steelmaking and continuous casting systems, especially during the production of high-quality steel grades, the control of water temperature differences plays a vital role in stabilizing product quality and facilitating the development of new steel grades.
Additionally, the changes in outdoor temperature can be leveraged to start and stop fans, thereby reducing electricity consumption and achieving energy savings. We proactively communicate with each production line user to gain an in-depth understanding of their specific water temperature requirements and determine the most reasonable range. This approach ensures that while meeting production needs, we also achieve cost reduction and efficiency enhancement. By fully utilizing seasonal changes and the drop in outdoor temperatures at night, on-duty personnel monitor and transmit real-time water temperature change data on-site, enabling timely adjustments to the operating fans and minimizing the number of fans in operation. Over the past week, the number of operating fans has been halved, resulting in a corresponding halving of electricity consumption.
Burst Strength Under Static Pressure of Spiral Welded Pipes
Comparative tests have confirmed that the measured and theoretical values of the yield pressure and burst pressure of spiral welded pipes are largely consistent with those of straight seam welded pipes, with close deviations. However, both the yield pressure and burst pressure of spiral welded pipes are lower than those of straight seam welded pipes. The burst test also revealed that the circumferential deformation rate at the burst site of spiral welded pipes is significantly greater than that of straight seam welded pipes. This confirms that the plastic deformation capability of spiral welded pipes is superior to that of straight seam welded pipes. Typically, the burst site of spiral welded pipes is confined within a single pitch, due to the effective restraint provided by the spiral weld seam on the propagation of cracks.
