Smoke exhaust fire valve is a kind of key equipment used in the smoke exhaust system inside the building. Its function is to prevent the spread of smoke in the event of fire, reduce the impact of smoke on human health, and ensure the life and property safety of personnel. What is the effect of the smoke exhaust fire valve? This paper will introduce the principle, function, type, installation and maintenance in detail.

The smoke exhaust fire valve is a fire prevention device installed on the smoke exhaust pipe, which has a dual function: on the one hand, it can prevent the spread of the fire when the fire occurs, and on the other hand, it can control the air flow under normal circumstances. The working principle of the smoke exhaust fire valve is very simple. When the smoke exhaust system detects fire or smoke, the smoke exhaust fire valve will automatically close to prevent the smoke from spreading to the inside of the building. In this way, it can greatly reduce the harm of smoke to human health and help personnel evacuate safely as soon as possible.

The effect of smoke exhaust fire valve is mainly reflected in the following aspects:

1. Smoke control: smoke fire valve can effectively control the spread of smoke, reduce the damage of smoke to personnel, and improve the efficiency of evacuation. In the event of a fire, the smoke exhaust fire valve can be quickly closed to prevent the spread of smoke to the room and ensure the safety of personnel.

2. Air flow control: The smoke exhaust fire valve can also control the air flow under normal circumstances, maintain the freshness of indoor air, and improve the ventilation effect of the building.

3. Fire isolation effect: the smoke exhaust fire valve can effectively isolate the fire scene when the fire occurs, prevent the spread of fire and reduce the loss caused by the fire.

In addition to the above effects, the smoke exhaust fire valve can also improve the overall safety of the building, meet the relevant fire safety standards and regulations, and provide a reliable guarantee for the safety of the building 阣.

There are two main types of smoke exhaust fire valves: electric smoke exhaust fire valves and pneumatic smoke exhaust fire valves. Electric smoke exhaust fire valve is usually controlled by electric actuator, which can realize automatic opening and closing function; The pneumatic smoke exhaust fire valve is opened and closed through the pneumatic control actuator. According to the specific building structure and fire protection requirements, the appropriate type can be selected for installation.

The installation and maintenance of the smoke exhaust fire valve is also very important. First of all, when installing the smoke exhaust fire valve, it is necessary to consider the layout and connection of the smoke exhaust pipe to ensure that the smoke exhaust system can operate effectively. Secondly, in daily maintenance, it is necessary to check the working status and sealing performance of the smoke exhaust fire valve regularly, clean and replace the aging parts in time, and ensure the normal operation of the smoke exhaust fire valve.

In general, the smoke exhaust fire valve is an important equipment in the smoke exhaust system inside the building, with multiple functions such as fire prevention, smoke exhaust and air flow control. Reasonable selection and correct installation of smoke exhaust fire valves can effectively improve the fire safety of buildings and ensure the safety of personnel's life and property. Through regular maintenance and inspection, to ensure the normal operation of the smoke exhaust fire valve, to provide a reliable guarantee for the building 阣 safety.