Industry News

In industrial fluid transportation systems, screw pumps are widely used in petroleum, chemical, food, sewage treatment and other fields due to their stable flow rate, low pulsation, high self-priming capacity and good adaptability to high-viscosity/solid-containing media. The core principle of the comprehensive selection of screw pumps is to balance the investment cost of the pump unit and pump station as well as the long-term operating costs, and ultimately achieve the operational goals of economy, safety and applicability——this is the core logic that this article intends to systematically sort out for you.

In process industries such as petrochemicals, oil refining, and ethylene production, abnormal consumption of seal oil in the mechanical seal systems of centrifugal compressors or pump units not only leads to a sharp rise in operating costs but may also cause equipment shutdowns, medium contamination, and even safety accidents. So, which links have problems causing excessive seal oil consumption? And how to accurately investigate and address them? Today, combining API standards and frontline on-site practical experience, I will break down the six core reasons for abnormal seal oil consumption and their corresponding solutions.

This article focuses on the daily operation and maintenance of chemical pumps, covering key points like manual turning, vibration, bearing temperature, lubricating oil use and leakage. It details fault handling, maintenance standards and principles, emphasizing the importance of three-level filtration, five-fixed lubrication and preventive maintenance to ensure the equipment's long service life and safe operation.

In the operation of centrifugal pumps, the coupling is a core component connecting the motor and the pump shaft. Misalignment of the coupling directly affects equipment efficiency, service life, and safety. According to industry statistics, more than 60% of unplanned shutdowns of centrifugal pumps can be traced back to misalignment during coupling installation or operation.

In petrochemical processes, pump reliability largely depends on effective temperature control. The cooling system selected for different medium temperatures not only impacts equipment lifespan but also directly affects operating costs. As a petrochemical pump researcher, I will break down the most scientifically sound cooling configuration strategy based on three critical medium temperature thresholds.

In the actual operation of centrifugal pumps, flow regulation is a common task. However, many on-site engineers face a puzzle: why do some methods consume more electricity while others save energy when reducing the flow rate? As a researcher, I will not only tell you what methods are available for centrifugal pump flow control but also show you "which regulation is the most cost-effective" through data comparison. This article will deeply analyze four mainstream flow control schemes.