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Use of smoke exhaust fire damper actuator and fire control commissioning

Release Time：2021-07-20

The use of smoke fire valve actuator:
Generally installed in the smoke fire damper-multi-leaf smoke outlet-multi-leaf air supply-positive pressure air supply.

Function:
1 Open the valve manually or by electrical signal to exhaust smoke, and close it again when the temperature rises to 280 ℃.
2DC24V power control valve open.
3 manually open the valve, manual reset.
4 After the valve is opened, the output electrical signal is interlocked with other related equipment.
5 This product has been installed to open and close two kinds of torsion spring, in the valve body without the installation of tension spring.

What is the reason why the fire valve actuator cannot be opened:
1. If only part of it cannot be opened, it should not be a wiring problem, and of course individual phenomena are not excluded.
2. It may be the problem of the air damper actuator fire damper, such as the mechanical parts are too tight, the spring force is not enough, and the possibility is relatively large.
3. The power cord is too thin, and the power supply voltage of the module at the end is not enough to make the relay in the actuator act, which is unlikely.
4. This part of the air valve is not within the linkage range, that is to say, the problem of programming is unlikely.
5. The control module is broken, it is unlikely.
6. It is best to find air valve manufacturers to solve together.

Set smoke exhaust fire damper at the connection of smoke exhaust fan and smoke exhaust pipe, and set smoke exhaust valve at the end of smoke exhaust pipe. Note that smoke exhaust valve and smoke exhaust fire damper are devices with completely different functions. Smoke exhaust valve is usually closed, opened in case of fire, and linked with alarm host. The opening condition is that the automatic alarm system has a fire alarm (smoke or fire damper temperature detection signal is sent to the control center host), the fire alarm host is in automatic state, and the exhaust valve is automatically open, the linkage smoke exhaust fan is started, the smoke exhaust fire damper is usually open, and it is also open in case of fire. However, when the smoke temperature reaches 280 ℃, the smoke exhaust fire damper is automatically closed, and the linkage fan that has been opened stops running.
Fire valve according to the role can be divided into fire valve, smoke fire valve and smoke fire valve.

Fire damper shall be set on the return air-drying pipe of the air-conditioning system. Its functions are as follows:
a) Prevent the fire from spreading to other areas through the air duct.
B) Prevent the flue gas from spreading to other areas through the air duct.
c) Prevent the smoke exhaust fan or smoke exhaust equipment from being damaged by fire.
The working principle of the system is different, the type of fire valve is not the same as the principle of fire valve, the main purpose is to prevent the spread of fire.

Fire dampers must be installed at the following locations:
a) Fire dampers are set on the air supply and return air pipes that pass through the fire zone, including the fire wall, partition wall of the fire zone and the air duct of the floor.
B) Ventilation of partition walls and floor slabs across the machine room, air supply and return air main pipes of the air conditioning machine room.
c) Air supply and return pipes at the partition wall and floor slab of the room with high fire risk.
d) The air duct passing through the deformation joint is on both sides of the deformation joint.
e) The vertical air duct is connected with the horizontal air duct of each layer.
The smoke exhaust fan belongs to the smoke control system in the fire control system, and it is generally linked with the host of the fire control center.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures