Chemical Plant Monitoring Systems
Leakages and explosions may have different origins, such as corrosion caused by rain and chemical aggressions, wear, material flaws, shocks, abnormal temperatures, extreme pressures, or excessive deformations caused by movement of the ground.
When under pressure, or when a leak is occuring, liquid and gaseous substances generate a hot or cold spot, depending on their physical properties, process and environmental conditions. These local thermal anomalies can be detected by a distributed temperature sensing system with good temperature, spatial and time resolution, such as the Testindo Group's DiTeSt and DiTemp systems.
Benefits of the Testindo Group’s Integrated Chemical Structures Monitoring Solutions
1 - State of the art system The Testindo Group’s fiber optic technology allows operators to identify events such as leakages and excessive deformations with a one meter spatial accuracy (virtually having a sensor every meter) over the whole length or surface of the structure to be monitored. Temperature (0.1°C) and strain resolution (0.02 mm/m) allow the system to detect microleakages and microstrains.
3 - Prevention and mitigation function The processing detection software allows the configuration of different alarm levels:
- An early warning to detect excessive deformation/small leakages for actions such as visual inspection or containment/repair of the leak without any disruption of the operations.
- A safety warning to detect significant leakages for immediate action such as isolation of the leak by closing the appropriate valves.
This system may be used in explosion-hazard environments, since the sensor, which is the optical cable itself, has no electrical power.
5 - Reliability, availability, testability Redundancy and appropriate system architecture (1002, 2003) can be implemented in order to have a good compromise between availability of operations and reliability of the system, maintaining the safety function in case a “false alarm” occurs. The system is delivered with a self-diagnosis process (for example, to detect any cable rupture or the failure of the instrument), and can be automatically and frequently tested through temperature simulation, for example.
7 - Reduce economic, environmental, social and image liabilities Leakages can have consequences that go beyond the mere loss of revenues from the operation of the installations. Investing in the prevention of such events helps the acceptance of new projects, reduces insurance costs and promotes the environmenta and social consciousness of both the site owner and operator. Thanks to the early detection and fast containment of leakages, the owner can avoid any catastrophic event, which can soil its reputation, and finally cause the closure of the plant.
Leakage: Liquid and gas leakage identification and localization
Distributed Temperature: Temperature distribution
Local Strain: Strain in critical locations
Distributed Strain: Localization of high-strain areas
Soil Stability: Unstable soil, settlement
Pipe Corrosion: Internal corrosion