When installing heptafluoropropane fire-extinguishing equipment, it is necessary to set vents and pressure relief valves in the protection area, so as to ensure that toxic gases can be eliminated in time and ventilate the protection area. Today, let's talk about some knowledge of heptafluoropropane pressure relief ports.
1、 Installation of heptafluoropropane pressure relief port
Installed on the wall of the fire protection area, it is usually closed. When the fire extinguishing system extinguishes the fire in the protection area, the pressure relief device will automatically open under a certain pressure to relieve the pressure, so as to ensure the safety of the protection area; When the pressure drops to a certain value, the pressure relief device automatically closes to ensure the tightness of the protection area, meet the fire-fighting needs and ensure the safety of the protection area.
2、 Selection of heptafluoropropane pressure relief port
The selection of heptafluoropropane pressure relief valve is also particularly important. In the selection of pressure relief port device, the area of pressure relief port in the protection area can be calculated according to the design specification of fire extinguishing system, and one or more pressure relief devices of different models can be selected according to the calculated area.
3、 Action principle of heptafluoropropane pressure relief port
When a fire occurs, the gas fire extinguishing system starts to spray extinguishing agent to extinguish the fire, and the pressure in the protection area increases accordingly. When the pressure rises to the set value, the pressure relief actuator quickly changes the blade from closed state to open state, and the pressure in the protection area is released so that the structure of the protection area is not damaged. The pressure in the protection area drops below the set value, and the pressure relief mechanism resets and the blade closes.
4、 Installation and precautions of heptafluoropropane pressure relief port
Specification requirements: the pressure relief device is suitable to be set on the outer wall. If it is used for heptafluoropropane fire extinguishing system, it should be set in the protective area with a clear height of more than 2/3. Precautions for reserved hole size of pressure relief device installation:
1) Handle the equipment with care during installation to avoid damage to the external surface of the pressure relief device. Brutal construction is strictly prohibited to avoid damage to the structure and performance caused by the deformation of the pressure relief device.
2) Strengthen the protection of the panel during installation.
3) The state of the pressure relief device should be checked every year to ensure the reliable performance of the pressure relief device.
