Analysis of Design Parameters of Gas Fire Extinguishing System

The pressure inside the carbon dioxide storage container is the saturated vapor pressure of carbon dioxide. The pressure inside the heptazide storage container is obtained by pressurizing with nitrogen. The pressure inside the IG541 storage container is determined by the amount of gas charged. The pressure in the fire extinguishing agent storage container is related to the ambient temperature and the amount of fire extinguishing dose filled.

Storage pressure generally refers to the pressure inside the storage container at 20 ° C (- 18C for low pressure carbon dioxide fire extinguishing systems), which is a parameter used by gas fire extinguishing systems for pipe network calculations. When the pipe network is small, it is advisable to choose a smaller charging (boosting) pressure. When the pipe network is large, a larger charging (boosting) pressure can be selected.

The design (working) pressure is generally the pressure of the storage container at the maximum filling capacity and maximum design temperature, and is a parameter for determining the compressive strength of the storage container. To avoid system damage during overpressure, a safety pressure relief device should be installed on the storage container or container valve, and at least two sets of low-pressure carbon dioxide storage containers should be installed.