One important risk to manage with regard to coal stacks is preventing fires due to spontaneous combustion. Generally, coal stacks are located in expansive areas where the wind blows unobstructed, posing a constant risk of spontaneous combustion. Even the best contingency plans by independent fire-fighting teams are unable to address the cause of the problem. And once fires start, if they aren't extinguished quickly they can spread rapidly and result in overwhelming damage to the company. Many companies set up regular patrols by engineers as a fire prevention measure. However, measuring coal stack temperatures can be dangerous, and it takes a lot of time and effort to cover the extensive areas involved. By using Yokogawa Electric's "Plant-wide field wireless," you can safely acquire temperature data any time from any point in a vast coal stack as a fire prevention solution.
What is Plant-Wide Field Wireless?
Plant-Wide Field Wireless is a wireless system that employs the international ISA100 Wireless (IEC62734) industrial standard, giving it the reliability demanded of industrial wireless communication and real-time functionality. It utilizes a redundant "Duocast" technology that communicates with two Access Points simultaneously to maintain connection when a communication channel or Access Point fails. It is highly scalable, supports a variety of interfaces for connecting to the Access Points and upstream systems including Ethernet, wireless LAN, and optical Ethernet, and is flexible during structural changes, making it ideal for building large scale wireless networks.
- Covers up to 500 Locations from up to 2 km
- Safe and Efficient Monitoring at a Lower Cost
- Low Entry Cost, and Delivery in as short as One Day
Solution and Benefits
Covers up to 500 Locations from up to 2 km
Portable thermocouples of approximately 2 m in length are embedded at measuring points on the coal mounds where ignition is most likely to occur. By connecting these to YTA510 Wireless Temperature Transmitters, temperature data from 2 meters in depth can be transmitted wirelessly. Because it's a wireless system, it easily conforms to changes in the shape of the coal stack. It has a maximum range of 500 m, and covers up to 500 measuring points. By installing repeaters, you can monitor from a control room that is up to 2 km away. This scale of regular fixed-point observation would not be realistic with wired solutions.
Safe and Efficient Monitoring at a Lower Cost
Unmanned operation means that engineers are freed up from dangerous coal stack temperature measurement work. Further, the transmitters are battery powered (lasting up to 10 years depending on operating conditions), and require almost no maintenance. You can expect to lower your costs because you can reduce the time and labor involved in surveying immense coal stacks.
Low Entry Cost, and Delivery in as Short as One Day
Wired solutions require installation with cabling, which costs time and money. But wireless is relatively inexpensive because you simply install a device at each measurement and relay point. Installing the system can take as little as a day, saving even more time.
YOKOGAWA Solutions Meet even More Needs
We carry a broad lineup of wireless field devices. For the YT510 Wireless Temperature Transmitter, in addition to the 2-input model, we also carry the YTMX580 Multi-Input Temperature Transmitter that accepts up to 8 inputs per unit. With Yokogawa Electric solutions, you can connect to a variety of upstream systems, from small- to large-scale.
Fer et acier
In the iron and steel industry, it is crucial to improve the quality of not only products but also manufacturing and operation technologies, as well as to address environmental and energy-efficiency issues. Yokogawa helps customers to create the ideal plant and evolves with them for mutual growth.
Les produits et solutions liés
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YFGW410 Station de terrain pour gestion de réseau sans fil
La station de gestion sans fil YFGW410 est basée sur la norme de communication sans fil ISA100.11a pour l'automatisation industrielle de la société ISA (International Society of Automation).
YFGW510/YFGW520 Point d’accès au réseau de terrain sans fil
Le point d'accès sans fil de terrain YFGW520 est basé sur la norme de communication sans fil ISA100.11a pour l'automatisation industrielle de la société ISA (International Society of Automation). Ce produit possède une fonction de routeur de réseau principal basée sur ISA et sa combinaison avec la station de gestion sans fil (YFGW410) et / ou le convertisseur de média sans fil (YFGW610) constitue le système sans fil
YFGW520 Field Wireless Access Point
YFGW520 Field Wireless Access Poin has backbone router function based on ISA, and combining this with Field Wireless Management Station (YFGW410) and/or Field Wireless Media Converter (YFGW610) composes the field wireless system.
YTA510 Transmetteurs de Température Sans Fil
Le transmetteur de température haute performance YTA510 accepte les entrées thermocouple, RTD, ohms ou DC volts. Les émetteurs transmettent non seulement les variables de processus, mais également les paramètres de réglage à l'aide d'un signal sans fil. Les transmetteurs fonctionnent avec des piles et le coût d’installation peut être réduit car le câblage est inutile. La communication est basée sur les spécifications du protocole ISA100.11a.
YTMX580 Transmetteur de Température Sans Fil Multi-Entrées
L’YTMX580 peut accepter des entrées de 8 points de mesure maximum, tels que des thermocouples (8 types : K, E, J, etc.) ou des signaux RTD (3 types : Pt100, etc.), convertissant les valeurs d'entrée de mesure correspondantes en un signal sans fil. Il peut également accepter une tension continue, une résistance et une entrée de signal continue de 4 à 20 mA.
Panel Mount Recorders
Panel mount recorders are fully integrated data acquisition and display stations with secure, built-in data storage and network connectivity. Panel-mount solutions are NEMA compliant and integrate the data acquisition equipment into a control panel.
Terrain sans fil
La flexibilité des solutions sans fil permet de réduire les investissements en infrastructure tout en offrant un meilleur aperçu des opérations de l’usine.
Wireless Temperature Transmitters
Yokogawa propose le YTA510 à double entrée et le transmetteur de température multipoint YMTX580.
Contact a Yokogawa Expert to learn how we can help you solve your challenges.