Molasses Storage Tank - Temperature Monitoring

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Introduction

ISA 100 WirelessTemperature plays a key role in storage of Molasses to maintain the chemical properties of molasses. When temperature rises over 40.5 degree C, destruction of structure in sugar occurs, which results in losing the feeding property of molasses. There is also a safety concern that a rise in temperature can lead to a rise in storage tank pressure leading to an explosion of the tank.

 

Molasses Plant

The Boston molasses disaster (The Great Molasses Flood) which occurred on 15th Jan 1919 was due to increase in the storage tank temperature above 40 degree C which led to explosion of the tank.

Benefits

  • Improved operation efficiency and plant safety, wireless measurement is easy to achieve continuous monitoring of storage temperature
  • Minimized plant startup time and downtime (NO wire, NO routing problems, NO maintenance issue)
  • Reduced maintenance effort, low power consumption devices with proven battery life of 10 years with 30sec updates and non-proprietary battery cells.
  • Enabled easy integration with existing host system, industry proven Modbus platform enables easy and seamless integration with a wide range of host systems available in the industry

Requirements

  • transmittersOffline measurement shall not provide continuous measurement which leads to unnoticed variation in temperature effect on molasses property.
  • Minimize cables installation and maintenance.
  • Improve measurement accuracy.
  • Avoid human error which leads to loss of chemical property of Molasses.

Solution

Molasses tanks are located approximately 400m away from the control room. Two YTA510 wireless temperature transmitters with standard antennas (driving capability is 600m) were installed without repeater. Robust and reliable direct communications were established from the gateway.

Molasses Tank to Gateway

Modbus to Ethernet IP protocol converter was installed to establish the connection between the gateway and a host system, Allen Bradley PLC. These were located in the control room and antenna for the gateway was mounted outside using remote antenna cable to improve wireless quality.

Conclusion

  • ISA100 wireless solution enabled continuous monitoring of molasses temperature and increase plant and personnel safety.
  • Frost & Sullivan 2014 Best Practice AwardLow power consumption devices enabled savings in OPEX with reduced battery consumption with a proven battery life of 3.6 years with every second update of PV. As additional feature ISA100 devices supports configuration of device roles as per the application requirement.
  • Wider coverage driving capability reduced installation time and expenses involved, reflecting as direct savings to project expenses.

Yokogawa has a proven track record of delivering reliable, scalable and open technologies for a century. ISA100 wireless solutions address the specific challenges of the industrial automation industry while lowering cost ownership for our end users and maximizing their return on the investment.
 

產業別

相關產品&解決方案

YFGW710 Field Wireless Integrated Gateway

YFGW710 Field Wireless Integrated Gateway comply to the wireless communications standard ISA100.11a for industrial automation of International Society of Automation (ISA), and relays ISA100 Device data to the system via integrated backbone router. Single unit of YFGW710 has integrated functions of backbone router, system manager, security manage, and gateway.

YTA510無線溫度變送器

高性能溫度變送器YTA510接收熱電偶、RTD、歐姆或DC mV輸入訊號。該變送器通製無線訊號傳輸製程變量以及設定參數。該變送器採用內定電池,由於無需硬接線,因此可降低安裝成本。通訊規格以ISA100.11a協議為基礎。

現場無線

無線解決方案的靈活性可減少對基礎設施的投入,同時可以對工廠運營有更深入的了解。

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