Jiangsu Haifa Machinery Manufacturing Co., Ltd.

Magnetic drive pumps, due to their "leak-free" characteristics, are widely used in industries such as chemical, petrochemical, new energy, fine chemical, pharmaceutical, and environmental protection, especially suitable for conveying flammable, explosive, toxic, and corrosive hazardous media. Compared with traditional mechanical seal centrifugal pumps, magnetic drive pumps eliminate the mechanical seal structure and achieve power transmission through magnetic coupling, fundamentally reducing the risk of medium leakage. However, at the same time, the internal structure of magnetic drive pumps is more precise and more sensitive to operating conditions. Once an abnormality occurs, it is often not easy to detect directly from the outside. Therefore in critical working conditions, configuring temperature and vibration measurement systems for magnetic drive pumps has become an important measure to ensure the safe and stable operation of equipment. The internal sliding bearings of magnetic drive pumps usually rely on the conveyed medium itself for lubrication and cooling. When the pump inlet is blocked, the medium flow is interrupted, cavitation occurs, the pump runs dry, or the bearings wear, the internal temperature will rise rapidly. If not detected in time, it can easily lead to grinding and burning of the sliding bearings, damage to the containment shell, and demagnetization of the magnetic steel. In severe cases, it can even cause rotor seizure and complete unit shutdown. Especially under high-temperature, high-pressure, and hazardous medium conditions, such failures not only affect production continuity but may also pose significant safety risks. Therefore, configuring a temperature monitoring system for magnetic drive pumps allows real-time understanding of equipment operating status and early detection of abnormal conditions. Temperature monitoring points are usually set at the bearing positions, the containment shell area, and the motor bearing positions. Among these, the containment shell is one of the most critical core components of a magnetic drive pump. When the inner and outer magnetic steels are not concentric, rotor friction occurs, or eddy current losses increase, the temperature of the containment shell will rise significantly. Through online temperature measurement, major failures such as containment shell burn-through and magnetic steel demagnetization can be effectively prevented. In addition to temperature monitoring, vibration monitoring is equally important. Vibration is often the most intuitive manifestation of equipment failure. When bearing wear, rotor eccentricity, cavitation, excessive pipeline stress, or foundation looseness occurs in a magnetic drive pump, vibration value will increase significantly. Long-term abnormal vibration will accelerate bearing damage, lead to fatigue cracking of the containment shell, and even cause magnetic steel fragmentation and motor damage. Therefore, by monitoring the equipment operating status through a vibration measurement system, potential problems in the equipment can be detected in time, enabling fault warning. Currently, vibration measurement for magnetic drive pumps is mainly divided into two methods: portable vibration measurement and online vibration monitoring. For ordinary working conditions, portable vibration meters are usually used for daily inspections. For continuous production units, high-risk medium conveying systems, and large key equipment, online vibration monitoring systems are more recommended, and they can be interlocked with PLC or DCS systems to achieve real-time alarm and automatic protective shutdown functions. For magnetic drive pumps conveying high-temperature media, easily vaporizable media, flammable and explosive media, and valuable media, it is recommended to configure both online temperature measurement and vibration measurement systems. Especially in hazardous working conditions such as nitric acid, liquid ammonia, heat transfer oil, and benzene, condition monitoring systems can significantly improve equipment operation safety, reduce the risk of unplanned shutdowns, and lower maintenance costs. With the continuous improvement of modern industrial plants' requirements for safety, intelligence, and continuous operation, magnetic drive pumps have gradually evolved from traditional conveying equipment to intelligent condition monitoring equipment. By configuring temperature measurement and vibration measurement systems, equipment fault warning, predictive maintenance, and operating status optimization can be achieved. This not only improves production safety but also effectively extends equipment service life, achieving the goal of cost reduction and efficiency improvement for enterprises. Jiangsu Haifa Machinery Manufacturing Co., Ltd. was restructured from Jiangsu Ligong Group Co., Ltd., which was established in 1958, and the Jingjiang Stainless Steel Pump Valve Factory of the Iron and Steel Research Institute of the Ministry of Metallurgical Industry. It mainly produces API610 chemical process pumps - OH1 pumps, OH2 pumps, OH3 pumps, OH4 pumps, BB1 pumps, BB2 pumps, BB3, BB4, BB5 multi-stage pumps, VS1, VS4, VS5, VS6 barrel bag pumps, HES type chemical process pumps, chemical pumps, sixth-generation ultra-low carbon stainless steel high-quality leak-free molten urea pumps, urea hydrolyzer feed pumps, high-temperature asphalt pumps, pitot tube pumps, rotary jet pumps, molten salt pumps, vertical submerged pumps, magnetic drive pumps, high-temperature nitric acid magnetic drive pumps, magnetic drive pumps for conveying solid-containing media, industrial pumps, canned motor pumps, slurry pumps, titanium tetrachloride pumps, strong self-priming pumps, fluoroplastic-lined pumps, sandwich fluoroplastic-lined pumps, leak-free pumps, alkali pumps, pumps, oil pumps, axial flow pumps, Ti alloy pumps, forced circulation pumps, special pumps for filter presses, long shaft vertical submerged pumps, CQC first-level energy efficiency chemical pumps, high-pressure descaling industrial pumps, and Chinese chemical pumps. www.jslgpump.com Tel: 13905263417 E-mail: jslgpump@gmail.com E-mail: jsareva@163.com