Increasing safety, efficiency of operation and maintenance by wireless technology
Hydrogen cooling system of Turbine generator
Turbine generator is commonly used at captive power plant in multiple industry as well as large commercial power plant. Turbine generator converts motion energy to rotary motion, and it generates electric power. It has high speed rotary motion and generates huge amount of electric power, thus turbine generator itself produces heat by friction and electro-magnetic energy. The hydrogen cooling system is equipped to keep the adequate operation temperature. Efficient cooling for turbine generator is realized by the one of characteristics of hydrogen, quite higher thermal conductivity. However, hydrogen’s explosion limit concentration is between 4 to 75% in the air and hydrogen leak leads increasing risk of explosion accident. Accordingly, hydrogen density within turbine generator keeps more than 98% in large commercial power plant. Yokogawa’s gas density meter GD402* and GD40* are commonly used and it contribute to safety operation in this application.
Challenges for operation
It is commonly to use hydrogen for cooling turbine generator but there are multiple challenges for its leak detection.
- Hydrogen leakage is directly linked to safety risk in plant operation
- Hydrogen’s molecular architecture is quite small, easier for leakage compared to other substances
- It is difficult to define installation point for fixed type gas detector and its trial and error due to hydrogen's higher diffusivity
- It must be conducted to identify leaking point by portable type gas detector even such operation is recognized as dangerous
- Time consuming for identify hydrogen leakage location
Efficient method for hydrogen leak detection to ensure safety is required.
Overview of hydrogen cooling system
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YOKOGAWA’s solution
Wireless Hydrogen leak detection system can be realized by combination of Field Wireless system which has high reliability and higher data refresh, and partner’s wireless gas detector. User can Install wireless gas detector to expected location of hydrogen leakage and leak experienced location such as connection points of pipes and asset, without any complexity of trial and errors, construction, and wiring/relocating.
For monitoring the hydrogen leakage, not only by DCS but also it is possible to construct simple monitoring and alerting system by Data Logging Software GA10 and Data Logger GM10 from SMARTDAC+ series.
If wireless gas detector supports safety communication capability, it is possible to construct SIL2 Wireless Gas Detection system combined with safety system ProSafe-RS. Integrating wireless hydrogen leakage detection solution for turbine generator hydrogen cooling system to existing Fire & Gas application of Safety Instrumented System makes it possible to expand coverage of Fire & Gas application more.
Industries
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Energie
Dans les années 1970, Yokogawa est entré dans le secteur de l'énergie avec le lancement du système de contrôle électrique EBS. Depuis lors, Yokogawa a poursuivi avec constance le développement de ses technologies et de ses capacités afin de fournir les meilleurs services et solutions à ses clients dans le monde entier.
Yokogawa a exploité le réseau mondial de solutions énergétiques pour jouer un rôle plus actif sur le marché mondial dynamique de l'énergie. Cela a permis un travail d'équipe plus étroit au sein de Yokogawa, en rassemblant nos ressources mondiales et notre savoir-faire industriel. Les experts de Yokogawa dans le domaine de l'énergie travaillent ensemble pour apporter à chaque client la solution qui répond le mieux à ses besoins spécifiques.
Les produits et solutions liés
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Data Logging Software GA10
The latest software that enables you to build a DAQ system without programming. Designed for maximum compatibility with Yokogawa recorders, data loggers, temperature controllers, and power monitors, GA10 can also acquire data via Modbus communications.
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Modular GM10
SMARTDAC+TM GM10 data logger has a modular architecture that can acquire necessary data. By supporting not only I/O but also many communication protocols such as 920MHz wireless, Modbus and so on. Monitor and setting changes are available through Bluetooth. Supporting FDA 21 CFR Part11 and AMS2750E/NADCAP.
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SIS (Up to SIL 2) ProSafe-RS Lite
ProSafe-RS Lite conforms to the international safety standard for up to SIL2 application, and achieves SIL2 with a single module configuration.
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SIS (Up to SIL 3) ProSafe-RS
The ProSafe-RS is a Safety Instrumented System that is certified by the German certification organization (TÜV) to meet Safety Integrity Level (SIL) 3 specified in IEC 61508.
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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).
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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.
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Infrastructure Sans fil
Yokogawa propose une passerelle conforme à l'IoT compatible ISA100, un point d'accès, un convertisseur de média et une station de gestion. Tout cela pour vous aider à concevoir un réseau répondant à vos besoins.