Difference and application-fire prevention valve • smoke fire prevention valve • smoke discharge valve • filling air outlet • Pressing off the air outlet

Difference and application-fire prevention valve • smoke fire prevention valve • smoke discharge valve • filling air outlet • Pressing off the air outlet

Shi Yan, the founder of Fire Resources Network, the lecturer of the Fire Lecture Hall, worked for 25 years, participated in the design and construction of nearly a thousand projects, answered tens of thousands of fire prevention questions, and extremely senior practical experience. Everyone!

Shi Yan: Fire fire valve, smoke fire prevention valve, smoke discharge valve, smoke discharge port, air outlet, and pressurized air outlet are the concepts of us often confused. This article decomposes related concepts, as well as differences and applications.

Chapter 1 The main differences and applications

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

1. Main application places:

1,

Fire valve

: It is mainly used on ventilation, air regulation system, pressure pressure supply system, and air supply system.

2,

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Tobacco -exhaust fire valve, smoke exhaust valve and smoke exhaust port

: Mainly applied on a mechanical smoke exhaust system.

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

3,

Make up the air

: Mainly applied to the filling system.

4,

Polying the air outlet

: The main application is on the mechanical pressurized air supply system;

2. Starting method:

: Use temperature control to start (automatically close when 70 ° C)

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Smoke fire prevention valve

: Use temperature control to start (automatically close when 280 ° C)

Normally closed smoke discharge valve, smoke exhaust port, fill air outlet, pressurized air outlet

: Both of the electric and manual startup.

Third, structural principles:

Fire fire valve and smoke exhaust fire prevention valve

The structure of the structure is the same, and only the movement temperature is different.

Exhaust port

(Normal closed)

Smoking valve

Essence

Make up air outlet and pressure off the air outlet

The structure principles are the same, as well as

similar.

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Fourth, certification requirements:

Fire fire valve, smoke fire fire prevention valve, smoke exhaust valve

Both fire products can be implemented.

Make up the air outlet, pressurize the air outlet

There are currently no certification standards.

5. The above content is divided into the following

Chapter 2 Fire Valve

1. Main concepts and functions

The fire valve is a valve installed on the ventilation and air regulation system, and the valve on the air -to -air pipeline. It is usually open. When the temperature of the flue gas in the pipeline reaches 70 ° C during the fire, it can meet the amount of smoke in a certain period of time. The fire resistance integrity requirement, the fire -blocking effect.

2. Main composition and structure

1. The fire valve is generally composed of valve body, blades, execution agencies, and temperature sensors.

2. The action temperature of the fire prevention valve can be adjusted according to the setting site. For example, the smoke exhaust pipeline of the kitchen can be set when the fire valve is set, and the fire valve with a movement temperature of 150 ° C should be set.

3. Main application:

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

1. The ventilation and air regulation system’s duct should set up a firewood valve with a nominal movement temperature of 70 ° C: (((

9.3.11

)

a. Crossing the fire prevention partition;

b. Crossing the rooms and slabs of ventilation and air adjustment machine rooms;

c. Crossing the rooms and flooring of places with important or high fire risks;

D. Cross the sides of the deformed seam of the fire separation separation;

e. The horizontal pipe section of the vertical air duct and the horizontal duct of each layer.

Note: When the ventilation and air regulation system of each fire zone in the building is independently set up, the fire valve may not be provided at the junction of the horizontal air duct and the vertical pipe.

2. The ducts of the duct of the wind supply and air supply system and the air supply system are also installed with a fire valve (except for the exterior wall) on the room partition wall or floor of the room where the air supply room.

3. In practical applications, according to functional needs, there are some special fire prevention valves, such as smoke prevention and fire prevention valves and fire prevention regulating valves.

Chapter III smoke and fire prevention valve

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

The smoke and fire prevention valve is a valve installed on the smoke exhaust pipe or smoke exhaust fan entrance pipeline of the mechanical smoke exhaust system. It is usually open. When the fire temperature in the smoke exhaust pipes reaches 280 ° C during the fire, it is closed and a certain amount of During the time, it can meet the requirements of smoke drainage and refractory integrity, and start to smoke the fire to prevent the fire.

Compared with the fire prevention valve, the smoke and fire prevention valve is a valve installed on a mechanical smoke exhaust system pipe. The structure is basically the same (composed of components such as valve body, blades, execution agencies, and temperature sensors). The action temperature is also different.

According to the requirements of the specification, the following parts of the smoke exhaust pipeline should be set up to smoke fire prevention valves (

4.4.10

1. The horizontal pipe section of the vertical air duct and the horizontal duct of each layer;

2. A smoke exhaust system should bear the tobacco -prohibitory branch of multiple smoke -proof partitions;

3. The entrance of the smoke exhaust fan;

4. Cross the fire zone.

Chapter IV smoke exhaust valve

The smoke discharge valve is installed at the tube end of each branch of the mechanical smoke exhaust system (smoke inlet inlet). It is usually closed and meets the requirements of air leakage. The valve can be manually and electrically open and closed, and the smoke discharge effect can be discharged.

The smoke exhaust valve is used in the mechanical smoke exhaust system, and it is usually closed. When the fire occurs, the smoke -proof partitioning valve in the tobacco protection part is opened.

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

The smoke exhaust valve is generally composed of valve body, blades, execution agencies and other components. Compared with the fire valve and smoke fire prevention valve, the smoke exhaust valve does not have a temperature control device (temperature sensor), but the electric opening method is increased. The on -site manual operation is convenient.

Three, important supplements:

1. For the smoke exhaust valve that is inconvenient operation, a long -distance operation switch (long -distance execution mechanism) should be set to ensure that manual operation is convenient and reliable.

2. The smoke exhaust valve usually does not exist separately. It will support the decorative port or perform decorative treatment to form a complete closed smoke exhaust port.

The smoke exhaust valve with a decorative port or a decorative treatment is called the smoke exhaust port

Chapter 5

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

First, the exhaust port is the entrance to the flue gas in the mechanical smoke exhaust system, which can be divided into normal -closed smoke exhaust ports and normal open smoke exhaust ports.

Second, the frequent opening of the tobacco outlet may be applied to the mechanical smoke exhaust system in the single -to -smoke partition.

Third, the normally closed tobacco outlet is a smoke exhaust valve with decorative port or decorative treatment. It is usually divided into two forms: multi -page tobacco outlet and plate smoke exhaust port.

4. Example: In the smoke drainage system as shown in the figure, the normally closed multi -page smoke outlet or plate smoke exhaust port (normally closed, electric or manual opening), and the smoke exhaust support is installed with 280 ° C automatically closed. Tobacco fire prevention valve (frequent opening).

When the fire occurs, the smoke and smoke exhaust fan is opened to exclude the fire of fire. When the temperature of the flue gas of the smoke pipe reaches 280 ° C, the fire prevention valve is closed to prevent the fireworks from spreading.

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Chapter 6

According to the principle of air flow, there must be appropriate replenishment to discharge flue gas. According to the requirements of the specifications, except for the aisle or building area of ​​the ground building with less than 500m2, the place where the smoke exhaust system is set up should be set up. ((

4.5.1

The function of filling the air outlet and the pressure giving outlet is similar. In practical applications, you can replace the air outlet with a pressure off the air outlet.

The application of the air outlet is in the filling system, and there are two forms: frequent opening and normally closed.

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Chapter 7 Pressing the Wind Pass

I. The application of the pressure giving outlet in the control system is similar to the pressure and air supply system. The structural form and the action principle are similar to the tobacco outlet. However, compared to the tobacco outlet, there is no strict requirements for refractory resistance.

In practical applications, you can use the exhaust port instead of the pressure outlet and the air outlet.

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Second, there are two forms: frequent opening and normally closed air outlets:

1. The front chamber and the front room are usually used with a normal closed air outlet, which is usually closed, and manually or electric (automatic) is turned on during fire.

2. The regular open air outlets are usually used in stairwells and other parts (from the vertical shutters of the vertical shutters).

1,

1,

1,

Fire valve

2,

2,

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

2,

3,

3,

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

Exhaust port

Essence

Essence

1. Main concepts and functions

1. Main concepts and functions

2. Main composition and structure

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

2. Main composition and structure

3. Main application:

区别及应用-防火阀•排烟防火阀•排烟阀•补风口•加压送风口

)

)

Product Recommendation: auto air drain valve

RELATED POST

PORTS 1961 autumn and winter women’s clothing series “Reversing classics, elegant new solution”

PORTS 1961 autumn and winter women's clothing series "Reversing classics, elegant new solution" At 7 pm on February 16th, Beijing…

What can the wind turbine be retired? The engineer wants to turn the fan blades into a bridge

What can the wind turbine be retired? The engineer wants to turn the fan blades into a bridge In order…

Regarding the basic knowledge, purchase and maintenance of the battery battery, it is enough to watch a article.

Regarding the basic knowledge, purchase and maintenance of the battery battery, it is enough to watch a article. Author of…

The necessity of dehumidification of car raising skills, the simpler the more need to take care of it!

The necessity of dehumidification of car raising skills, the simpler the more need to take care of it! Love cars…