SDT ULTRASOUND SOLUTIONS - Ultrasound... Your first line of defence for Condition Monitoring

... et expertise après remplacement Pendant des années, le reclamer d’une usine de production de papier du Nord-Ouest de la France avaient fonctionné de manière fiable, pivotant grâce à trois pignons montés sur des réducteurs. Celui-ci sert à récupérer des copeaux de bois sur un tas afin de les véhiculer par des godets. Cependant, de façon tout à fait inopinée, la structure qui supportait ces équipements connut un affaissement. Heureusement, l’entreprise avait mis en place un programme de suivi préventif mensuel pour surveiller l’état de ces couronnes d’orientation. C’est à ce moment que l’entreprise prit une décision clé. Ils ont décidé de s’appuyer sur une technologie de pointe pour évaluer la gravité de la dégradation de la couronne après l’affaissement. Ils ont utilisé un dispositif de mesure ultrasonore (SDT340), la seule technologie qui pouvait fournir une analyse approfondie de la situation.

... nos compresseurs d’air industriels à une mort prématurée Les compresseurs font partie des équipements les plus sollicités dans une usine et doivent fonctionner sans relâche, jour après jour, pour répondre à la demande d’air comprimé nécessaire à la production. Leur utilisation est si courante que la plupart des usines ont besoin de plusieurs compresseurs pour répondre à la demande. Ce que l’on oublie souvent, c’est qu’en plus de l’air comprimé nécessaire à la production, il existe une demande artificielle importante de cette ressource. Une demande artificielle et invisible qui détruit l’efficacité de la production et la durabilité de l’usine, tout en empiétant sur les bénéfices de l’entreprise.

... expertise after replacement For years, the reclaimer at a paper mill in north-western France had worked reliably, pivoting on three pinions mounted on reducers. The reclaimer is used to collect wood chips from a pile and convey them by buckets. However, quite unexpectedly, the structure supporting this equipment collapsed. Fortunately, the company had implemented a monthly preventive maintenance program to monitor the condition of these slewing rings. It was at this point that the company made a key decision. They decided to rely on technology to assess the severity of the ring’s breakdown after the collapse. They used an ultrasound measuring device (SDT340), the only technology that could provide an in-depth analysis of the situation. Reference measurements taken prior to the incident were retained to enable the current state to be compared with the initial state.

Recently, the maintenance team at a mill in north-west France shared with SDT an unusual but crucial piece of feedback on mechanical fault detection using ultrasound, highlighting how this method surpassed the capabilities of vibration analysis in accurately identifying the problem. This paper mill had a recurring problem with its filter. This filter, essential to their production process, had a problem with annoying noise and regular shocks to the agitator. This problem was seriously affecting their productivity and the quality of their final product. One day, the team in question decided to solve this noisy mystery using the SDT340, a state-of-the-art ultrasound measurement device. They positioned it strategically to investigate the sources of this annoying noise. After careful ultrasound listening, they discovered something interesting: shocks at a frequency of 0.3 Hz on the GV/PV points, visible in the UAS3 software in the image below.

La soluzione indiscussa per i macchinari a basso numero di giri Sensori e strumenti: i punti chiave I sensori a contatto ad ultrasuoni sono sensori risonanti. La loro sensibilità è un punto importante, ma non l’unico. La base del Condition Monitoring è il trend dei dati e l’esecuzione di un’azione correttiva quando scatta un allarme. Se non avete la garanzia che due sensori forniscano un risultato simile per lo stesso segnale, cambiate fornitore. I dati storici e le soglie di allarme diventano inutili quando si sostituisce un sensore difettoso! Pertanto, come per tutte le tecnologie, le caratteristiche del trasduttore: sensibilità e frequenza di risonanza, devono essere chiaramente specificate e certificate dal produttore. SDT è in grado di fornire tali garanzie perché è in grado di offrire ai clienti sensori con una qualità di ricezione delle misure standardizzata.

Les ultrasons, la solution gagnante Enjeux et maîtrise de la maintenance des équipements et des composants hydrauliques : Parmi toutes les installations que compte un site de production, les équipements et les composants hydrauliques constituent certainement un enjeu de disponibilité très important. Un enjeu de sécurité aussi, notamment pour les centrales nucléaires françaises qui utilisent les détecteurs ultrasonores SDT pour contrôler l’ensemble de leurs parcs de robinetteries industrielles, mais aussi des vannes sécuritaires dans le domaine de la raffinerie de pétrole et de gaz (TOTAL), ou de la pétrochimie (SANOFI, ARKEMA,BASF…). Dans l’organisation d’une maintenance préventive sur un site industriel concernant des pompes hydrauliques, certaines sociétés ne pourraient pas produire sans apport d’eau.

How SDT’s Ultrasound Technology is Revolutionizing Maintenance Practices Introduction In the world of industrial manufacturing, the importance of lubrication cannot be overstated. From radial and axial bearings to complex gearboxes, lubrication plays a pivotal role in ensuring machinery runs smoothly and efficiently. However, traditional methods of lubrication maintenance have their limitations, often leading to costly downtime and safety risks. This article delves into the challenges of lubrication in industrial settings and introduces SDT International’s groundbreaking ultrasound technology as the ultimate solution for these issues.

... a waste of effort? But Run to Failure is not an Option Nearly all facilities Electric Motors are dominated by Seal For Life Bearings, the shear number poses an challenge to Asset Strategies. The default strategy often chosen is to Run to Failure and replace as quick as possible, but this causes multiple downtime events which adds up over a year to be of concern. Half an hour here, and another hour there doesn’t bode well in this reactive environment. Some facilities utilize Vibration Analysis but due to costs of Data Collection or Wireless Sensors small motors are often left off the list. An alternative is to replace Motor, Pump, Conveyor, Agitators, Blowers, Vibrators etc during a shutdown. As with All Shutdowns resource is limited as is Time and many scheduled replacements are achieved. So good intentions of having NEW bearings is nearly always suboptimal, with lots of Assets being missed, and therefore the Run to Failure strategy is adopted.

A centrifuge uses centrifugal forces, generated at high RPMs to separate solids and liquids. At Greenfield Ethanol, they use centrifuges in their manufacturing processes. They are critical to their operations. This centrifuge in question rotates at 5250RPM, and it has a suspected bad bearing. The following Figure 1 & 2 depicts the bearing & the asset. Jonathan Dion, of Greenfield Ethanol previously reported monitoring a critical fan with a bad bearing up until his plants next scheduled shutdown. He successfully managed to extend that fans lifespan for a full calendar year by keeping it under a watchful eye with his Vigilant System; An 8-Channel permanent condition monitoring solution, capable of both ultrasound & vibration analysis.

...with the CONMONSense Sensor Range: A Breakthrough in Asset Reliability For industrial maintenance and condition monitoring practitioners, precision and reliability are paramount. The SDT CONMONSense range of sensors is a game-changing solution, opening up a new era of ultrasound monitoring. With advanced technology and unparalleled features, these sensors provide a consistent, robust, and cost-effective means of tracking the health of your critical assets. The Power of Ultrasound in Your Hands The CONMONSense sensors are part of the SDT Ultrasound Solutions product family, introducing a set of heterodyned ultrasound sensors with a unique capability to detect vibroacoustic phenomena in the air or through solid mediums.