- Issue Time
- Jan 8,2021
It is strictly forbidden to stop the alarm and interlock system of temperature, pressure, liquid level, flammable and toxic gas in the oil and gas tank area.
It is strictly forbidden to stop the alarm and interlock
system of temperature, pressure, liquid level, flammable and toxic gas in the
oil and gas tank area.
This article specifies the management
requirements for the alarm and interlocking systems for key parameters such as
temperature, pressure, liquid level, combustible and toxic gases in the oil and
gas tank farm. Oil and gas storage tanks should be equipped with level gauges,
thermometers, pressure gauges, flammable (toxic) gas alarms, as well as high-level alarms and high-high-level automatic interlocking
cut-off measures in accordance with the requirements of standards and
specifications. The alarm signal should be sent to The control room or
operation room where the operator is resident, and the alarm should be set with
sound and light alarms to detect abnormalities in time and deal with them.
Therefore, it is necessary to ensure that the alarm and interlock systems are
in good condition and in use.
Typical accident case:
On December 11,
2005, a fire and explosion accident occurred at Bunce field Oil Depot in the
United Kingdom. More than 20 large oil storage tanks were burned, 43 people
were injured, and the direct economic loss was 250 million pounds. The main
cause of the accident was the measurement system of automatic storage tank
fails, and the electronic monitors of some storage tanks, piping systems and
related alarm equipment are in abnormal working conditions.