Foreword:

In the general machine room, the glass partition wall is used. In the design and construction of the machine room, the fire protection requirements are indispensable, because it is inevitable that a short circuit will occur in the non-stop operation of the electronic component circuit of the equipment room, and the glass partition will play a fireproof role. However, there is a convenient monitoring and management of the information room, so the glass partition is the most popular and adopted, which involves the fire resistance of the glass partition wall, and must have the requirement of fire prevention.

What is a fire barrier?

Fireproof partitions can be intuitively understood as decorative parts with fireproof performance. Fireproof partitions, fireproof glass, fire shutter doors, etc. all have in common, that is, effective isolation; it has both functional and segmentation space! Fireproof partition is a partition wall made of non-combustible materials mainly made of mineral wool, glass fiber, gypsum board, metal, PVC, etc., in order to isolate or control the fire source, thereby reducing or controlling the fire. The role of spread!

Can fireproof glass partitions really prevent fire?

The real fire glass partition, steel keel frame must be required in the design of fireproof glass partition, because the melting point of steel is more than 1500 degrees, and the aluminum profile is only 660 degrees. The normal melting point of strontium potassium fireproof glass is also above 1000 degrees, so if it is used The partition wall made of aluminum profiles combined with fireproof glass does not meet the relevant fire protection requirements. Depending on the fire rating, the fireproof glass partition design should take into account the relevant factors such as the frame material and the fireproof time of the fireproof glass. The real steel fireproof partition can play the role of fireproof and fireproof. The fireproof partition has been widely used in the fireproof partition area of industrial and civil buildings. It can effectively prevent the spread of fire and ensure the safety of life and property. It is indispensable in modern architecture. Fire protection facilities.

What types of fireproof glass partitions are there?

Fireproof single-glazed partition, fire-proof double-glazed partition, fire-resistant louver glass partition, steel fire-resistant glass partition, wood fire-resistant glass partition, aluminum alloy fire-resistant glass partition.

1, steel structure fire glass partition

It is made of special shaped steel profiles through refractory treatment, depending on the situation, you can choose not to use high profile. The structure is stable and strong, and the maximum lighting area can be achieved with a minimum of frames.

2, wood structure fire glass partition

It is made of wood aggregates which are impregnated with flame retardants by coniferous trees. The surface treatment can be decorated with decorative panels such as teak and cherry wood, or can be sprayed with wood paint. There are two ways to produce a single piece of fireproof glass:

One is that the ion replacement tank is immersed and cleaned and tempered. This production method is harmless to workers, no damage to equipment, stable quality and environmental protection.

The other is to buy the spray liquid and spray the method. This method is to use the lanthanum-potassium mixture to add LN catalyst to spray on the surface of the glass to dry and into the tempering furnace. When the glass is heated in the tempering furnace, a large amount will be produced. Oxygen and potassium oxide dust. The nickel-iron furnace wire of the tempering furnace has great oxidation effect, so that the furnace wire is oxidized and easily broken, the ceramic roller is oxidized and delaminated, the pitting point is deep and the electric and electronic components are vulnerable, and the service life of the tempering furnace is shortened. The potassium oxide dust generated during the heating process is diffused in the air when the glass is blown and cooled, and it is carcinogenic to the human lungs and other organs. In addition, the spray method is used to produce fireproof glass. For example, only one side of the glass is sprayed, and the sprayed surface must face the fire point during installation.

In addition, the spraying method must be sprayed three to four times, and the film layer will be uniform. Two-side spraying can meet national inspection standards. Therefore, the fireproof glass produced by this method is prone to defects in quality and thus fails to meet national quality standards.

3, aluminum alloy surface decoration fire glass partition

It is a structural frame that combines aluminum alloy materials with fireproof materials to form a fire barrier. Commonly used on the market is a single piece of fire-resistant glass partition, the use of two kinds of glass:

One is a fire-resistant glass partition wall designed and manufactured by strontium-potassium fire-proof glass. The characteristics of strontium-potassium fire-resistant glass are high strength, high refractoriness and flexible production.

The other is a fire-resistant glass partition made of soda-calcium fire-resistant glass. The soda-calcium fire-resistant glass is made by adding calcium dioxide before mixing the original glass. The glass manufacturer has few glass, the original sheet glass has low light transmittance, the mesh structure is like ceramic, the fire resistance temperature is high, the impact strength is small, the large-scale glass production is difficult, and the cutting yield is low. Therefore, the general fire-resistant glass partition wall on the market is mainly made of strontium-potassium fire-resistant glass. Due to the current chaotic production of fire partition walls, each partition wall company produces and processes in different forms, and some of them fail to meet the fire protection requirements.

Does the structure of the fireproof glass partition wall require a frame?

In the glass partition, as long as the combination of aluminum and glass is used, it is not required to have a flameproof glass partition with a frame and no border. These media are not combustible, but cut off the materials inside the room, such as electrical appliances, office equipment. The heat generated when these materials burn will cause the glass to break, and the generated smoke and toxic gases will quickly spread to other offices, thus affecting the safety of life.

What issues should be considered before making a fireproof glass partition?

First of all, it is necessary to clearly know the specific fire protection requirements for the fire-resistant glass partition members. It is necessary to prevent fire, heat or smoke, and fire resistance. Of course, in addition to considering the fire durability of the glass partition, it is also necessary to consider whether the structure of the fire-resistant glass partition frame and the elements meet the requirements of fireproofing and fire resistance.

The partition fire protection system project requires the office glass partition. When a fire occurs in the room, the glass partition is required to have a longer time to prevent the wall from collapsing, and the glass is broken, so that more time is allowed for other indoor personnel to escape.

Which is better for the fireproof glass partition of the engine room?

The use of all-steel and fire-resistant glass partitions improves the fire performance of the entire system. The whole system is the most basic requirement for fire protection, instead of using only fire-resistant glass, it is not feasible to use aluminum profiles without flame resistance. Fire prevention and sealing should be reasonably and effectively blocked by the smoke generated by the fire, avoiding the formation of the chimney effect, controlling the spread of the fire, and ensuring the smooth passage or evacuation of the evacuation passage is effective.

The second is the fire integrity of the entire system, that is, in the event of a fire, when one side is exposed to fire, it can prevent flame penetration or prevent the flame from appearing on the backfire surface for a certain period of time. If there is a burning, it will fall, and if it is burned, it will not meet the requirements of fire prevention time limit, and the fire will spread, and it will not be able to reduce the fire damage.

Refractory and heat insulation: that is, in the event of a fire, when one side is exposed to fire, the temperature of the back surface of the fire can rise within a certain period of time and does not ignite the items in the backfire zone. If the smoke is satisfied, it is guaranteed to be complete, but because the heat generated by the fire passes through the fireproof glass, a large amount of heat is radiated to the surface of the backfire to burn the combustibles, and it does not play a fireproof role.

Fireproof glass curtain wall design Fireproof glass curtain wall First of all, it is a wall function, it must have all the characteristics of the wall, such as wind pressure, rain, air leakage, in-plane deformation and other properties. The design requirements for these aspects are explicitly required in the JGJ102 specification and will not be described here.

As a glass partition wall with fireproof function, in addition to the above functions, it is more important to be a fireproof ground function. Similarly, the design of fireproof glass partition is first considered under the premise of considering its own structural safety, and then considering the requirements of fireproof ground. Tobacco design, the structure of the glass partition wall should achieve the effect of the smoke separation. First, the sealing should be better. It is not only the sealing property mentioned in the performance of our curtain wall, but the sealing property of fireproofing. It is within a certain time when the fire occurs. Also have a good sealing effect.

Therefore, the inner cavity of the profile is sealed, and the vertical material is designed to be plugged in and connected to each other, which has the possibility of forming a chimney effect. When designing the fireproof glass partition wall, the cavity must be sealed with a flame retardant material. On the other hand, it is necessary to consider the sealing failure caused by the local thermal expansion deformation of the partition wall at the time of the fire.

The fireproof glass partition wall and the fireproof partition of the machine room need to be complete and independent. The fireproof glass partition is used as the outer structure of the building. Its function is to prevent the fire from spreading vertically. It is often only one or a part of the partition wall to prevent it from being in the fire. In the collapse of the skeleton, the skeleton structure should be completely separated from the partition wall, and the main structure is fully fixed. If the conventional partition wall is used for plugging and connecting, the fire will be partially collapsed and lead to the fireproof part. Ground failure.

The fire barrier is also so independent and complete that it is the basis for meeting the fire resistance. Fireproof glass partition materials must have fire resistance. When fire occurs, the average temperature of the flame is usually about 700 °C within 10,000 minutes after the fire. Within 20,000 minutes after the fire, the flame temperature is usually around 800 °C, and within 30,000 minutes after the fire. The average flame temperature is about 840 ° C, which can reach about 925 ° C in one hour. According to the building's requirements on the fire-resisting time limit of fire curtain walls or partitions, the selection of appropriate fireproof materials is the basis for achieving functional and economical uniformity.

The glass material of the glass partition is mostly aluminum profile or steel profile, but the melting point of the aluminum material is about 400 ° C. The mechanical properties such as yield strength and elastic modulus of the steel under the action of high temperature of fire will decrease with the increase of temperature. At around 550 °C, the reduction is more obvious. Usually, the bearing capacity is lost in about 15 minutes. In short, the design of the fireproof glass partition wall needs to take into account the fireproof aspects. The specific fire partition design needs to be independently designed according to the fire resistance level.