Thermal Imaging for Odorant Tank Level Screening
- Dec 13, 2024
- 2 min read
Updated: Aug 12
Thermal imaging can be used as a non-contact screening method when evaluating a possible liquid level in an odorant tank. Results depend on thermal contrast, tank surface condition, insulation, weather, camera setup, and operator interpretation, so the image should be reconciled with other available level or inventory records.
The Challenge with Traditional Methods
Sight glasses and tank level gauges have been the go-to tools for monitoring odorant tank levels. However, these methods can be prone to inaccuracies. Sight glasses can become cloudy or stained, making it difficult to read the levels accurately. Tank level gauges, on the other hand, can malfunction or provide false readings due to mechanical issues or calibration errors. These inaccuracies can lead to either overfilling or underfilling odorant tanks, both of which pose significant risks.
The Thermal Imaging Solution
An infrared image may indicate a temperature boundary associated with a liquid-vapor interface when conditions create sufficient contrast. It does not directly measure odorant volume and should not be described as universally precise.
How It Works
Setup: An infrared camera is positioned to capture the thermal profile of the odorant tank.
Imaging: The camera scans the tank, detecting temperature differences between the odorant and the air.
Analysis: Thermal images are reviewed for a temperature boundary that may indicate an apparent liquid level. The result is not an exact volume measurement and should be confirmed against inventory, a suitable level device, or another approved method when accuracy is required.
Reporting: The results are displayed in an easy-to-read format, allowing operators to make informed decisions about tank refilling and maintenance.
Benefits of Thermal Imaging
Screening Value: Can provide a non-contact indication of a possible liquid level when thermal contrast and surface conditions are suitable.
Non-Invasive: No need to open the tank or disrupt operations.
Exposure Reduction: May reduce the need to open a tank for an initial level check; personnel must still follow the manufacturer SDS and site procedures.
Operational Use: Can support a quick field check, with results documented and reconciled against available inventory or level records.
Why Choose Burgess Pipeline Service?
Burgess Pipeline Services can support a documented field assessment using thermal imaging when site and tank conditions are suitable. The method is treated as one source of evidence, not a guarantee of tank volume or equipment condition.
Thermal imaging can be a useful screening tool when its limitations are understood. A project plan should define the purpose of the check, acceptable conditions, supporting records, and how uncertain results will be confirmed.
