Fire curtains (fireproof fire curtains, barriers, curtains, smoke curtains and barriers) are used as effective localization of a source of ignition or protection from high temperatures and combustion products of ways and exits for evacuating people, important objects, crowded places, equipment, vehicles, etc. e. In the European Union, the fire resistance and smoke protection properties of fire-resistant smoke barriers (curtains, curtains) are regulated by international standards EN 12101, EN1634, developed by the European subcommittee SC 1 (smokean dheatcontroll systems) as part of the general technical committee TC 191 (fixed fire fighting systems), and also the norms of the technical regulation DIN18095 of the German Institute for Standardization. In our country, the norms and requirements for fire-resistant barriers and fillings of fire-resistant barriers, including fire curtains, curtains and screens of types 1, 2, 3 in terms of fire resistance, water curtains and smoke and gas-tight curtains and screens of types 1, 2, 3 in terms of fire resistance, are established by Federal Law 123-FZ "Technical Regulations on Fire Safety Requirements" (more about the norms and requirements of 123-FZ "Technical Regulations on Fire Safety Requirements" in this material), and approved on March 10, 2009 by order of the Government of the Russian Federation N 304-r "List national standards containing the rules and methods of research (testing) and measurements, including the rules for sampling, necessary for the application and execution of the Federal Law Technical Regulations on Fire Safety Requirements and Conformity Assessment" defines a package of legal acts governing certification tests fire barriers / fire-resistant fillings barriers and inspections.
Unlike fire gates and doors, for which the technical regulation 123-FZ establishes fire resistance limits:
- EI 15, EI 30, EI 60 depending on the type for doors (excluding doors with more than 25% glazing and smoke and gas tight doors;
- EIW 15, EIW 30, EIW 60 depending on the type for doors with glazing with a total area of more than 25%;
- EIS 15, EIS 30, EIS 60 depending on the type for smoke and gas tight doors;
- EIWS 15, EIWS 30, EIWS 60 depending on the type for smoke and gas tight doors with more than 25% glazing,
Fire curtains and screens are certified for fire resistance:
- for loss of integrity and loss of heat-insulating ability due to the achievement of limiting (critical) temperature values on the surface, or EI 15, EI 30, EI 60, depending on the type of fire curtains / screens;
- for loss of integrity, loss of heat-insulating ability due to the achievement of limit (critical) temperature values on the surface and / or limit (critical) values \u200b\u200bof heat flux at a regulated distance from the structure / barrier / barrier filling and smoke and gas tightness, or EIWS 15, EIWS 30, EIWS 60 for smoke and gas tight fire curtains / screens, depending on their type.
In the EU, the fire resistance limit of fire curtains in terms of loss of integrity and loss of heat-insulating ability due to the achievement of limiting (critical) temperature values on the surface, some manufacturers raise up to EI 120 (T120 according to DIN standards) and such significant limits for maintaining integrity and maintaining heat-shielding properties are achieved through the use of as the main material of glass or silica fibers, often reinforced with thin stainless steel filaments. Additionally, the woven fabric of fire curtains is treated with special fire-resistant compounds, the recipe of which is kept secret by the manufacturers of fire barriers.
The scope of fire and smoke protection curtains is very large due to the manufacturability and flexibility of the material, as well as the possibility of integrating the structure into the opening from any material and the execution of complex articulations of canvases at different angles.
The main purpose of fire curtains is to block the transfer of heat from the source of ignition by radiation and convection, as well as combustion products, the release of which, even in small fires, can be significant. So, a typical computer printer emits up to 2,000 m?/hour of toxic smoke in case of fire, a medium-sized refrigeration unit - 6,000 m?/hour, an ordinary clothes hanger - 4,000 m?/hour, 10 kg of wood in products - 8,000 m?/ hour, similar in weight amount of foamed materials - 20.000 m? / hour, passenger car - 80 000-100 000 m? / hour, etc. All fire curtains are used in combination with natural and forced smoke exhaust systems and devices, the standardization of which is carried out in European and German legislative acts E DIN prEN 12101, VdS CEA 4020, VDI 3564, DIN 18232, as well as in the Russian 123-FZ "Technical regulation on fire safety requirements.
Structurally, fire curtains are a canvas wound on a shaft with a heavy cutting bar at the end. The edges of the canvas are made in the form of pockets, into which the guide rods of the side tires are inserted. To improve sliding, the inner surface of the pockets is coated with polyurethane (or other) coating. Rolled-up curtain shaft is closed by a galvanized sheet steel body and placed under the ceiling or on the upper horizontal of the wall opening. Almost all fire curtains have a shaft drive with a reversible motor operating from mains or low voltage (24 volts). All electrical wiring is tested for flame propagation and flammability, smoke generation, insulation retention and system functionality, toxicity and corrosiveness of emitted gases in accordance with international, domestic or German standards (see the article "Fire sliding gates").
In the raised position, the fire curtain is held by a friction brake with an electromagnet blocking the motor shaft. If the temperature sensors are triggered, the electromagnets are de-energized, and the fire curtain canvas spontaneously lowers under the weight of the cutting bar and its own weight.
To enhance the fire protection properties, fire curtains can be used in conjunction with sprinkler fire extinguishing systems. Irrigation with water is carried out in front of the fire curtain from the side of the ignition source, from both sides of the fire curtain, or sprinkling of the fire curtain itself is performed.
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Fire curtains are used to protect local window and door openings closed with standard windows and doors made of non-fire-resistant materials (plastic, wooden, aluminum, combined windows, wooden, glass, metal doors and doors made from materials based on wood processing products). |
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 | Fire curtains can be used to protect fire and combustion products of evacuation exits - stairwells, and it is possible to articulate canvases with high tightness at an angle and create autonomous protection, regardless of the presence of rigid supports (video "fencing of individual zones") |
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Fire curtains are used for zoning certain areas of office space, parking lots (video "zoning offices"). |
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 | Fire curtains can be used to protect large areas of cinemas, shopping centers, concert halls from fire and smoke (video "cinema concert halls" and "shopping centers"). |
 | In the case of large-scale production, fire curtains may block individual sections of conveyor lines (video "conveyor lines"). |
 | Fire curtains can be made in a horizontal design to block the spread of fire and smoke between floors (video "horizontal barriers"). |
 | Fire curtains are effective for localizing fire and smoke in individual spans of a building when fencing a part of the facade from the outside (video "fencing building spans"). |
 | With the help of fire curtains, it is possible to protect free-standing expensive or dangerous equipment in the event of a fire (video "protection of stand-alone equipment"). |
 | Special fire curtains are designed to localize fire and smoke during the quick and convenient evacuation of people from crowded places (video "evacuation of people"). |
All fire curtains are manufactured as separate modules with their own shafts and motors, from which structures of considerable width and various shapes are assembled. There are restrictions on the height of fire curtain curtains (5 m), mainly due to the tensile strength of the material itself, as well as the dimensions of the wound drum, although manufacturers increase the strength of the curtain by reinforcing the fibers with steel threads and can produce longer curtains. At the request of the customer, fire curtains can be painted in different colors with special fire-resistant paints, and the structure itself can be decorated after installation. Installation of fire curtains is carried out exclusively by teams of professionally trained masters of companies that sell fire curtains.
To improve the fire safety of the premises, it was previously enough to install a special alarm system and cover individual elements of the interior with a special impregnation. Now safety is reaching a new level, as fire curtains have appeared. They are made from non-flammable materials. Fireproof curtains are placed in a special metal box, which is mounted above the doorway. In the event that the passage is very large, then several sets can be used at the same time. This security element is almost invisible and will not take up much space in the room.
After the fire starts, a danger signal is received, the curtains are lowered automatically. They are wound on a shaft driven by an electronic motor. If the central power supply is turned off, then it is possible to start an autonomous one. A metal strip is attached to the bottom of the curtain, which guarantees a perfect fit of the fire-resistant material to the floor. Thus, the fire cannot spread further and will be localized at one point. The material withstands high temperatures reaching 1400 degrees. They are also not afraid of radiation. An important indicator is the dielectricity. After turning off the danger signal, the curtains return to their original position automatically.
Installation of automatic fire curtains - FireTechnics
Fire curtains
can be installed in rooms with a large crowd of people. They will become a very important element of safety in large industries, in
airports, warehouses and many other facilities.
The evacuation of employees of the enterprise is carried out much more efficiently in the case of using fireproof curtains. Do not worry that some people may be cut off from evacuation sites.
Fire curtains have a special hole through which you can safely leave a dangerous room. Localization of the fire will save more property and, accordingly, minimize the expenses aimed at eliminating the consequences of such an unpleasant set of circumstances. Such an improvement will also simplify the work of the fire brigade that arrived on the call.
If you are interested in an exceptionally reliable purchase, and not a cheap fake, then you should buy fire curtains from the manufacturer. Thus, you can count on quality assurance. Among other things, the absence of intermediaries in such a case will significantly save your money and time.
You should never rely on chance. Fire is a very dangerous phenomenon. The usual confidence that this will not happen to you, unfortunately, is not enough.
Taking care of your safety in advance, you can not worry about the future.
fire curtain
Stage covered with a fire curtain
Fire curtain (fire curtain, fire screen, "iron curtain")- a fire-resistant smoke-tight structure with a rated fire resistance limit, made of non-combustible materials (metal, reinforced concrete, fire-resistant fabric) and lowered in case of fire to separate the stage from the auditorium. Serves to prevent the spread of fire and combustion products within a specified time.
Fire development
The stage and the premises adjacent to it have a large amount of combustible materials (stage floor structures, hold, grate, combustible decorations and props). The fire load in the stage complex reaches 200…350 kg/m² and has a highly developed surface. :274
If a fire breaks out on the stage when the portal opening is open and the smoke hatches are closed, then there is a threat of fire and smoke spreading into the auditorium. Practice shows that under such conditions the auditorium is filled with smoke in 1 ... 2 minutes. :275 In the absence of a fire curtain, the intensity of thermal radiation already after 30 ... 40 seconds of a fire becomes dangerous for spectators. :164 With a decrease in the capacity of the hall, the time for the appearance of fire hazards decreases and the danger to spectators appears earlier. :165
Design
Spectacle enterprises with a capacity of 800 seats or more tend to be of architectural value. In such buildings, the functional purpose of the curtain is not only to ensure the safety of evacuation of people, but also to preserve the building. In buildings that do not represent architectural value, it is possible to limit the functional purpose of the curtain by ensuring the evacuation of people and preventing the spread of fire into the auditorium until the combat deployment of fire departments. :165 In the halls of cultural institutions with a capacity of less than 800 people, where there is no fire curtain, the portal opening must be protected by a deluge installation (water curtain).
A red line should be drawn on the stage board indicating the boundary of the fire curtain descent. Decorations and other stage decoration items should not protrude beyond this line. At the end of the performance (rehearsal), the fire curtain must be lowered. The fire curtain must be firmly attached to the stage floor with a sand seal (elastic cushion). The lifting mechanism must provide a curtain lowering speed of at least 0.2 m/s.
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In rooms with an auditorium for more than 800 seats, fire-retardant curtains must be installed without fail. The presence of such a screen is a safety requirement laid down in current regulations. Its task is to obtain a certain margin of time in order to:
- organize the evacuation of people from a burning building;
- localize the fire.
fire curtain cost
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*Please note that the indicated calculation is relevant for the basic design. The exact cost can be found after registration of the application.
To calculate the cost use the special form or call the indicated contact numbers.
You can also order a call back, and we will contact you and answer any questions you may have.
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What is a fire curtain?
The OLEMAT company manufactures fire curtains, which are heavy steel structures. They are lowered under the action of a powerful electric drive.
What are fire curtains for?
When the screen is lowered, the stage portal opening is completely covered. In this way, the auditorium is protected from rooms in which there are many combustible and flammable materials. This includes scenery and props for performances, wooden stage structures and more.
During the performance there is always an increased risk of fire due to the use of a large amount of equipment, and sometimes open flames. Fire curtains prevent the spread of flames and carbon monoxide into the auditorium. Visitors get enough time for a smooth evacuation. Actors and stage workers leave the dangerous place through other prepared emergency exits.
As practice shows, the auditorium is filled with smoke in just 1–2 minutes. The fireproof screen prevents the spread of combustion products for different times, depending on the material of its manufacture. The minimum protective period here is 60 minutes, the maximum guaranteed by the manufacturer is 3 hours.
Our company manufactures and installs fire curtains, curtains and screens of any size. When they are installed, a system of counterweights is created, which makes it possible to reduce the effort when lifting the screen. The design of the canvas is worked out in such a way that, in the absence of a motor, it descends at a speed of no more than 0.4 m / s. This eliminates the risk of injury to people on or near the stage. Sound and light signaling warns of screen movement.
To order a fire curtain, leave us a message or call the specified numbers. We will send a specialist to you free of charge for measurement and a more detailed consultation.
Work examples
Left a message, they called back promptly. They talked about the features of different curtains (I could not decide on a choice). Moreover, they not only helped to choose the right option for fire curtains, but also spoke in detail about the various subtleties of their operation. As a result, I chose OLEMAT E 180 curtains.
The order was completed without delay. Delivery didn't disappoint either. As a result, I have no complaints about the work performed. In general, I was satisfied. I wish the company prosperity and development.
On behalf of our production company, we would like to express our gratitude to Fire Standard. Over the years of close cooperation, we had no complaints, all situations were resolved quickly and efficiently. Never missed a deadline. Subsequent maintenance is carried out with high quality. We ordered the production of fire protection for conveyor openings and smoke curtains.
3.5.2. A lifting-lowering type fire curtain must be partially balanced by one or two counterweights and be connected to each of them and the lifting winch drum by at least two ropes. Parts of a sliding curtain and parts of a curtain with opposite vertical movements must also be connected to the drum of a traction or lifting winch with two ropes.
The average speed of movement of the lifting and lowering curtain and the sliding curtain, consisting of one part, should be within 0.2 - 0.3 m / s. For a two-piece curtain, the indicated speed can be half as much.
3.5.3. Each of the ropes on which the curtain is suspended must have a 9-fold margin of safety. The smallest permissible diameter of the drum or block must be 30 times the diameter of the rope.
3.5.4. The frame of the fire curtain must cover the opening of the construction portal protected by it on the sides by at least 400 mm and from above by at least 200 mm.
The frame must provide the strength of the curtain at a horizontal pressure of 10 Pascals per meter of stage height, counting from the level of the stage board to the roof ridge.
In this case, an overload factor equal to 1.2 should be taken.
Note: 10 Pa = 10 N/sq. m = 1 kg / sq. m.
3.5.5. Pairing the top of the frame of the lifting-lowering curtain and the curtain, which has an oncoming vertical movement of two parts in the lowered state with the structure, the portal opening of the wall should be carried out using a sand shutter or a shutter made of another non-combustible plastic material.
3.5.6. The pairing of the sides of the frame of the lifting-lowering curtain and the curtain with the opposite vertical movement of two parts, as well as the upper edge of the sliding curtain with fixed guides, should be carried out using a labyrinth-type shutter.
3.5.7. Elastic fireproof cushions must be installed to tightly adjoin the lower edge of the lifting and lowering curtain to the stage floor, the halves of the curtain between themselves and the side edges of the sliding curtains with the portal wall structure.
3.5.8. In the lowered state, the lifting and lowering curtain must rest on a wall or partition separating the hold from the visual part of the building. In the case of placement under the curtain of any room, the curtain must rest on the fireproof ceiling of this room. In this case, under the curtain there can only be a wooden flooring of the tablet, laid directly on the fireproof ceiling.
3.5.9. The fire curtain must be able to move freely above the upper working position by at least 200 mm.
3.5.10. Traction rope blocks installed on the curtain frame must be equipped with guards (safeties) that exclude the possibility of the rope jumping out of the block stream.
3.5.11. The shafts of the counterweight and the traction rope must be protected from all sides. The shaft of the counterweight must have a fence for the entire height of the stroke, and the shaft of the traction rope - at a height of at least 6 m from the stage floor. In the case of the passage of traction ropes through the working galleries, the traction rope shaft should be fenced to the full height from the stage floor to the grate flooring. The fencing of the shafts of the counterweight and the traction rope to a height of 3 m from the stage floor must be deaf removable, and above it - mesh made of wire with a diameter of at least 1.4 mm, with holes no more than 20 x 20 mm. The height of the counterweight shaft must be such that outside the upper working position of the counterweight, the counterweight can move freely to a height of at least 20 mm. With the upper position of the curtain - down by at least 300 mm.
3.5.12. The distance between the structural parts of the shaft and the counterweight or rope must be at least 30 mm clean.
3.5.13. It is forbidden to place any premises under the shafts of counterweights.
3.5.14. The fire curtain winch must have a closed-type electromagnetic stopping brake, a centrifugal brake to maintain a constant speed during non-motorized descent (exceeding the set curtain lowering speed is allowed no more than twice), an emergency shutdown mechanism and a non-motorized descent drive in case of power failure.
The non-motorized curtain lowering drive must have a limit switch to actuate the stopping brake. The scheme of the curtain electric drive must be designed so that it can be started and stopped in any position.
3.5.15. The non-motorized descent handle must be mounted on the counterweight shaft 1.2 m above the level of the stage board.
3.5.16. The design of the winch must ensure that the curtain is lowered by the action of the non-motorized start handle in the event of a power failure of the winch.
3.5.17. The fire curtain electric drive must be equipped with:
A) two independently operating limit switches that automatically stop the curtain in the extreme positions of its working stroke, and a switch on the winch to turn it off in cases where these positions go over a distance of not more than 100 mm;
B) a limit switch that is triggered when the tension of the ropes is loosened.
When the limit switches are actuated, the electric drive circuit must ensure that the power supply of the winch motor is turned off and exclude its remote start.
3.5.18. The control circuit of the fire curtain must ensure its start and stop from the engine room, from the fire station and from the stage board. Operational launch of the fire curtain may only be carried out from the control panel located on the stage tablet. In this case, the moving curtain must be in the field of view of the employee who controls its movement.
3.5.19. When the fire curtain moves, light and sound alarms should work. The alarm is switched on by the same starting device that sets the curtain in motion.
3.5.20. The working start button on the stage board and the non-motorized start drive handle must be protected by a casing that prevents accidental activation.
The cover of the handle of the non-motorized starter must have a lock that allows the cover to be opened freely without a key. The casing cover or lock must have a sealing device.
3.5.21. Under normal operating conditions, lowering the curtain with the motorless start handle is prohibited.
3.5.22. On the casing of the handle of the non-motorized start-up drive, the inscription "In case of fire, open the casing and turn the handle" must be made.
3.5.23. The curtain mechanisms must be adjusted so that the curtain, when lowered after turning on the power, travels no more than 250 mm (braking distance).
3.5.24. The use of the counterweight shaft for laying pipelines and electrical wiring is prohibited.
3.5.25. It is necessary to provide free access to the locations of the upper blocks.
3.5.26. Between the most protruding parts of the fire curtain winch mechanism and the walls of the room, there must be passages on at least three sides, with a width of at least 0.6 m.
Installation in the engine room of any equipment that is not related to the fire curtain is prohibited.
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