Water mist fire extinguishing technology. TRV modules. Water mist fire extinguishing systems Example of modular fire extinguishing for shopping malls

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MUPTV (Vzr) - 13.5 VD
1.00₽
MUPTV-18.5-GZ-VD
1.00₽
MUPTV-30
1.00₽

On request, MUPTV modules can be equipped with a fire-resistant mounting box KM-O (4k)-IP41-s.

MUPTV "Tungus" - modular fire extinguishing systems with water mist ( water fire extinguishing).

Modular water mist fire extinguishing systems!

Module mist water "Tungus" was developed and introduced into mass production by CJSC "Istochnik Plus" in several modifications. The creation of the Tungus MUPTV became possible thanks to the extensive experience in creating modular powder and gas fire extinguishing equipment.

Benefits of water mist modules

TRV modules"Tungus" contain 13.5, 18.5 or 30 liters extinguishing agent. They reliably extinguish fires of classes A, B, E on the protected area up to 30.2 sq.m. from a height of up to 9 meters. Test results can be viewed here.

Such high performance was achieved due to the use of cold gas sources of a new generation in the mist water modules. It provides, with minimal time spread, the inertia of the MUPTV, not exceeding 2-3 s from the moment the starting pulse is applied to the start of the FTV output. ICG also maintains a constant pressure in the module housing during the release of OTV.

The nozzle of the TRV module is structurally designed in such a way that the finely atomized flow of FA, with a uniform distribution, also has a high feed rate to the fire site. This is very important to overcome it with drops of convection currents from the source of the fire.

Areas of application for TRV modules

MUPTV "Tungus" are designed to protect garages, parking lots, shopping centers, offices, museums, etc. In addition, MUPTV can be equipped with electronic trigger units, with which the product acquires the function of self-activation and is used as an autonomous modular fire extinguishing system with water mist.

Fire extinguishing installations are technical means systems fire protection(SPZ) and are designed to contain fire in cases where the fire is capable of intensive development already at the initial stage. Today the industry produces automatic settings extinguishing fire (AFS), which are able to start when they reach in the controlled area allowable temperature, smoke and other configured thresholds.

The fire extinguishing system has two functions:

Preservation of life and health of people
Preservation of property.

It should be noted that fire extinguishing modules perform the listed functions with different effectiveness. Today the market is represented various technologies fire extinguishing, which can be divided according to the type of fire extinguishing compositions used, according to the method of their application, etc. Let's consider one of them.

Method of extinguishing a fire with finely dispersed water. TRV modules

Extinguishing a fire with a fine water jet (TRW) is advanced technology, with highly effective action, with growing popularity. The extinguishing agent is water, which is supplied under high pressure through specialized spray nozzles. This method forms a finely dispersed state of the mixture in the form of a mist of droplets with a size of 100-150 microns, with a rapid filling of the protected object. This technology provides quick effect elimination of ignition zones at a low water flow, which makes it possible to use the TRV method in modular fire extinguishing installations.

Our company has long been engaged in the development and testing of expansion valve fire extinguishing modules. We are engaged in the installation and maintenance of such systems in St. Moscow and Moscow region. It should be noted that we still have representative offices in Krasnodar– capital Krasnodar Territory and in other regions of the country. We have already tried and tested AFSs, which operate on the basis of the RCT methodology.

Factors affecting the effectiveness of expansion valve devices

Water mist from fine droplets has a huge heat capacity and a large total coverage of the droplet surface, due to which a rapid temperature decrease in the ignition zone is carried out and the ignition process, called (the effect of temperature decrease), is stopped.
In the source of ignition, during the evaporation of water droplets, a huge volume of water vapor is formed, which in the gaseous state permeates all cracks and porous materials, cutting off burning materials from oxygen, lowering its saturation in the ignition zone, using (oxygen cut-off effect).
Dust-like water drops and water vapor, covering the outlines of objects that have not yet ignited, form a thin film of water on their outlines, preventing ignition of objects located near the burning zone of the objects of the protected building (fire damping effect). In some expansion valve modules, a foaming agent (potassium acetate) is used to increase this efficiency. The resulting mixture does not allow freezing of water, when frost environment and ensures the operability of the TRV module up to 40 degrees below zero.

Thus, the TIE method, in addition to cooling, ensures the implementation of two more quenching designs: zone localization and oxygen saturation reduction.

It is possible to cite an additional advantage of fire extinguishing installations of TRV in comparison with other fire protection devices - this is complete environmental cleanliness and harmlessness to people. Due to this, it is possible to use the proposed technique in residential buildings, retail outlets, factory floors and other buildings where people are present. The instantaneous formation of a water spray and its rapid cooling efficiency makes it possible to evacuate people from a dangerous building even during active stage combustion (when the ignition elimination module is turned on). Plus, atomized water droplets provide smoke residue. The practice of using AUP TRV proves that after its launch, even ventilation to ventilate the area from smoke can not be turned on.

Features of the functioning of AUP TRV

The principle of operation of the TRV modules is based on the following:

1 . AFS control devices detect ignition, followed by the issuance of an electrical impulse to the control panel and to the start-up of fire extinguishing installations.

2. From the received electric shock, the gas generator of the fire extinguishing installation is turned on, loading inert gas into the inside of the extinguishing installation, due to which the pressure in the module core instantly increases. When the pressure rises to an explosive level in the module (it rises in a fraction of a second), the protective film of the expansion valve module breaks, and the water jet is directed through a fine nozzle to the object of ignition.

In the standard position (before switching on), the pressure inside the unit body is zero. This enhances the level of its performance even with a slight depressurization, with a gradual leakage of pressure. Such devices have an advantage over AFS, which are under a stable pressure.

Scope of application of the RCT technique

When choosing a method of extinguishing a fire, it is necessary to take into account the requirements of the standards and rules for the application of fire extinguishing, take into account the characteristics of the protected areas and calculate the economic feasibility of the chosen method of extinguishing a fire, as well as understand all the pros and cons of the chosen method.

In houses and industrial buildings, AUP TRV are reputed to be out of competition, as they have environmental cleanliness and not hazardous to human health.

In warehouses serving for warehousing material values from cellulose (paper products, wood processing products), food products, pharmaceutical products, complex and expensive electrical equipment, atomized water droplets are also among the most acceptable extinguishing methods.

Thus, we can conclude that the scope of AUP TRV is quite extensive. However, there are limitations to the use of this technique.

Disadvantages of the TRV Method

1. AUP TRV cannot be used to extinguish a fire in buildings with electrical equipment at a high voltage of more than 1000 V.

2. Also, TRV cannot be used to destroy class D fire, as well as substances aggressive to water, including:

Aluminum and organic alloys, alkaline materials and alkaline earth alloys which are highly explosive when in contact with a water jet
Organic lithium alloys, lead azide, aluminum, magnesium, zinc hydrides - substances are capable of decomposing when water enters, forming flammable mixtures.
Sulfuric acid, termites, titanium chlorides - these materials, when in contact with an aqueous solution, emit great amount heat.

Conclusion

Today, modular fire extinguishing solutions for expansion valves and equipment based on the proposed methodology are becoming increasingly popular. Unlimited availability of water, its environmental friendliness, harmlessness and high efficiency spray fire suppression is the main reason for the growing reputation of this technology. The specialists of our company also have experience in the design and installation of such fire extinguishing technologies. You can contact our staff at Moscow or in Krasnodar. TEV modules are constantly being improved, providing frequent testing to reduce deficiencies and expand their scope.

MUPTV is designed to extinguish fires of classes A, B according to GOST 27331, electrical installations under voltage up to 1000 V and is used in automatic modular fire extinguishing installations with mist water for surface and locally on the surface of fire extinguishing in industrial, warehouse, administrative, archival premises, storages of museum values, exhibitions and other similar facilities.

MUPTV are not designed to extinguish substances that react with water (alkali and alkaline earth metals), as well as substances whose combustion occurs without air access.

We invite you to watch the video recording of the webinar on the topic "Capability of MUPTV "TRV-Garant-160" and MPP "Garant-100" for fire protection of facilities for various purposes dated November 21, 2017.

Height of placement of sprayers: 2.32 - 4.32 m. Pipeline length - up to 75 m. Thanks to its design and technical features TRV-Garant-160 has a number of advantages:

Protection in 4 directions, when using the control panel "UURS-TsP (BP)". The total protection area is up to 400 sq.m.
Nozzle types: HC-390, HC-145 (nozzle types can be combined regardless of extinguishing zones)
Possibility of feeding OTV at any angle
Application in conditions low temperatures(up to -30 С, modules of target design)
Pipeline length - up to 75 m.

SPECIFICATIONS

Name of technical characteristics	Execution code "TRV-Garant-160"
	"TRV-Garant-160"-10	TRV-Garant-160"-40
Protected area for fires of class "A" and "B", m2	100	100,200,300,400
Height of placement of spray nozzles, m	2,32...4,32
Number of fire extinguishing directions	1	1,2,3,4
Duration of action, s	8...12
Quantity of OTV, l	160±0.6 l of water, including 1 l of foaming agent PO-6TS 160±0.6 l of water, including 10 l of foaming agent PO-6TF
The volume of the cylinder for storage of propellant gas, l	10	40
Pipeline length (DN 50) to the junction of the supply pipeline with the distribution pipeline, no more than, m	25	75
Pipeline type	metal - dry pipe, non-metallic - water-filled
Starting current of the module, A	not less than 0.5
Safe current of check of a chain of start, mA	no more than 0.02
Module height, mm	1840
Module diameter, mm	410
Module weight (without OTV), kg	141±5	193±5
Temperature conditions of operation, °C	+5...+50 -30...+50 when using special OTV
Operation resource, times	at least 10
Service life, years	at least 20

Versions

Name	Short description
MUPTV "TRV-Garant-160" -10	In one direction. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 25 m. I srab - 0.5 A. Protected area - 100 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-390-S" - 4 pcs.
MUPTV "TRV-Garant-160" -40-1	In one direction. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 75 m. I srab - 0.5 A. Protected area - 100 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-390-S" - 4 pcs.
MUPTV "TRV-Garant-160" -40-2	In two directions. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 25 m. I srab - 0.5 A. Protected area - 200 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-390-S" - 8 pcs.
MUPTV "TRV-Garant-160" -40-3	In three directions. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 75 m. I srab - 0.5 A. Protected area - 300 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-390-S" - 12 pcs.
MUPTV "TRV-Garant-160" -40-4	In four directions. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 75 m. I srab - 0.5 A. Protected area - 400 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-390-S" - 16 pcs.
MUPTV "TRV-Garant-160" -10 (10)	In one direction. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 25 m. I srab - 0.5 A. Protected area - 100 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-145" - 10 pcs.
MUPTV "TRV-Garant-160" -40-1 (10)	In one direction. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 75 m. I srab - 0.5 A. Protected area - 100 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-145" - 10 pcs.
MUPTV "TRV-Garant-160" -40-2 (10)	In two directions. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 25 m. I srab - 0.5 A. Protected area - 200 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-145" - 20 pcs.
MUPTV "TRV-Garant-160" -40-3 (10)	In three directions. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 75 m. I srab - 0.5 A. Protected area - 300 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-145" - 30 pcs.
MUPTV "TRV-Garant-160" -40-4 (10)	In four directions. Height of placement of sprayers: 2.32-4.32 m. Pipeline length - up to 75 m. I srab - 0.5 A. Protected area - 400 m2. – 30 * to +50 °С * when using special OTV. Spray nozzles type "NS-145" - 40 pcs.

AT recent times at new construction sites and objects undergoing reconstruction, the use of the most modern system fire extinguishing with water mist.

TRV ( water mist) is an almost perfect system. With high fire-extinguishing efficiency, the factors of the consequences of using the expansion valve are minimal. In addition, modular expansion valve systems are autonomous, requiring neither power supply nor additional water tanks. Last but not least, TRV is essentially harmless to humans. All this implies a wide field for the use of these installations.

EI FOG "Water Mist" systems are a completely new concept of fire fighting, where water is used as a fire extinguishing agent, supplied under great pressure with droplets no larger than 100 microns. This system provides the following benefits:

reducing the cost of purchasing tanks and containers for storing water;
there is no need to partition the protected volumes, as well as when using volumetric extinguishing installations;
minimizing the damage caused by the fire-extinguishing composition, for example, the damage caused by water when triggered by sprinkler or deluge installations of conventional spray, with a droplet diameter of 0.4 - 2 mm.

System EI FOG "Water Mist" contributes to the creation of a fine mist, which quickly fills the protected volume of the room, while reducing the oxygen concentration. The effectiveness of fire extinguishing is significantly increased, while using minimal amount water.

Due to this significant reduction in the amount of water consumed, compared with conventional sprinkler systems, the damage caused by fire fighting is minimized.

Water mist has a high heat capacity and a significant total active droplet surface area, which makes it possible to sharply reduce the temperature in the fire zone and stop chemical reaction burning.

All these factors make it possible to safely evacuate people who were in the room, as well as create conditions for the normal work of special personnel equipped with portable fire extinguishing equipment.

Due to the fact that fire extinguishing systems EI FOG "Water Mist" do not contain chemical additives, the installation can be considered absolutely environmentally friendly.

All these advantages contribute to the fact that the control and process of extinguishing a fire is carried out in the best possible way.

Using the EI FOG System

Automatic fire extinguishing systems with mist water ei fog water mist are used to extinguish fires of classes A (solid combustible materials), B (combustible liquids), C (combustible gases) and E (electrical installations under voltage up to 1000 V) in buildings, structures and premises for various purposes with categories by fire hazard A, B, C1 and C3. It is allowed to use the system for extinguishing cables under voltage up to 30000 V.

This fire extinguishing system, which uses water mist, complies with international standards IMO A 800, A 913 and NFPA 75. At present, the system is certified by FGU VNIIPO EMERCOM of Russia.

Compare the advantages of a fire extinguishing system based on an expansion valve over traditional water extinguishing systems:

Comparative characteristics	Quantitative indicator
Comparative characteristics	Traditional water coolant system	Water mist system high pressure
Diameters of applied pipelines, mm	16 - 159	16 - 59
Estimated extinguishing area, m²	120	90
Maximum amount simultaneously operating sprinklers, pcs.	10	10
The amount of flowing water from one sprinkler for 1 min.	57	16
Number of pump groups	One for every 20 floors (due to limitation pressure up to 10 atm. under control node)	One for all floors
Normative time of water outflow from the sprinkler, min.	30	6
The amount of spilled water from one sprinkler for the standard time, l	1710	96
The amount of spilled water from 4 sprinklers (average statistical number of sprinklers opened) for the standard time, l	6840	384
The amount of spilled water from 10 sprinklers for the standard time, l	17100	960
Specific gravity of spilled water with an apartment area of 150 m², kg/m²	1140	6,4
Height of the spilled water layer in an apartment of 150 m² in the presence of a sealing layer in the interfloor ceiling, cm	11,4	0,6
Consumption of one hand barrel from the internal fire hydrant, l / min.	150	20
maintainability	main view connections - welding	Application of quick couplings
Assigned service life, years	at least 8	at least 10
Actual service life, years	over 10	over 30
The weighted average cost of 1 sq. m of protected area, rub

There are AUPT installations where powder or gas is used as an (OTV), which in some cases has advantages over water. However, still the most common stationary systems fire extinguishers - water.

The explanation for this lies on the surface, or rather, flows from each faucet- availability, low cost even at huge costs, volumes for localization / liquidation, a practically unlimited or quite sufficient supply for these purposes in external networks, fire reservoirs (reservoirs).

It's easy:

After operation, thermal, flame detectors, and in some cases in the premises of industries that have high category for fire and explosion hazard, explosion-proof fire detectors, the APS device sends a control signal to turn on the locking mechanism of the starting cylinder of the AUP-TRV extinguishing module.
It is also possible to start the operation of the spray water extinguishing system with the help of, which act as a starting device for the installation (module) / AUP-TRV system.
The expellant gas enters the tank with OTV (purified water, often with special additives).
The resulting fire-extinguishing mixture under pressure enters the distributing (supplying) and then distribution pipelines mounted under the ceiling of the protected premises, to the sprinklers, which eject the mixture in the form of finely sprayed water, often called water mist, which effectively suppresses the fire.
Control/monitoring of the release of OTV is carried out automatically, remotely according to the readings of the mixture pressure indicator installed on the supply pipeline of the installation module. When the control value of pressure in the tank with OTV is exceeded, safety valve(membrane).

Modular

According to paragraphs. 3.45, 3.47 SP 5.13130 a module is a single device in which the functions of storing / supplying fire extinguishing agents after a trigger signal are implemented, and a modular extinguishing installation - several modules with common system fire detection and control/management of their launch.

In addition to the basic version - with a displacing gas cylinder, modular AUP-TRV, as well as TRV fire extinguishing modules, are of the injection type; when the fire extinguishing agent in the product is immediately under pressure and ready for use, which reduces the response time of an individual device and the AUPT system as a whole.

It is convenient to protect small rooms and buildings with such equipment - modules, as modular installations / fire extinguishing systems for expansion valves.

Automatic

Designed for surface local extinguishing of class A, B fires, as well as electrical equipment with voltage up to 1 thousand V.

AUP-TRV, according to both domestic and foreign experts, is effective for protecting the following objects, individual important premises in them:

Residential houses, apartments.
Kindergartens, nurseries.
Nursing homes, boarding schools.
educational institutions.
Hospitals, hospitals.
Hotels, hotels, sanatoriums, hostels.
Industrial kitchen equipment.
Cabins, engine rooms, ship/ship corridors.

As can be seen from the list, these are mainly residential premises of a small area and height with a low fire load. The priority of using mist water instead of sprinkler / deluge installations, and even more so powder, gas, is quite understandable - this is to ensure the safety of people.

Although manufacturers advocate for wide use AUP-TRV for extinguishing shopping and office centers, underground parking lots, industrial / storage facilities, cable tunnels, archives, museums and book depositories, even oil and gas industry facilities (!), Experts consider this nothing more than an advertising message to the owners of buildings / structures, management enterprises of organizations.

In most cases, traditional water installations do a good job of extinguishing such objects, and powder and gas systems fire extinguishing; and the use of AUP-TRV there, which is confirmed by calculations, is inefficient. To understand when and for whom systems are needed, AUP-TRV modules should be compared with the pros and cons of their acquisition and use.

Advantages and disadvantages

First of all about the benefits:

Modules, installations AUP-TRV is a ready-made, complete equipment that can be quickly installed at the facility, compared with the installation, for example, of a sprinkler fire extinguishing system.
Due to the fact that the water mist sprayed by the sprinklers of the modules / installations is not dangerous for people's breathing, it is possible to evacuate from the protected premises during the operation of the AUP-TRV.
Minimal damage to the contents of the premises, compared with deluge / sprinkler and powder fire extinguishing systems.
The equipment of modular AUP-TRV requires minimal control / maintenance, similar to the maintenance of portable / mobile fire extinguishers, and planned Maintenance not much different from recharging fire extinguishers.

As usual, it was not without drawbacks:

In contrast to the usual deluge, sprinkler water AUPT, the supply of fire extinguishing agents displacing gas, therefore, the operating time of the TEV extinguishing module / installation is limited. It may not be enough to eliminate the source of the fire, at best it will be enough to localize it. Although there are installations with a compressor method for supplying a displacing agent, the complexity of the system will significantly affect the price of the products, and will also require expensive water treatment so that the small holes of the sprinklers are not clogged with mechanical impurities and mineral deposits.
The high cost of a set of equipment, than most sin domestic manufacturers not to mention foreign companies.
The need to install the alarm system in protected areas, which is not necessary when choosing a sprinkler water system.

Conclusions: the choice of modules, fire extinguishing installations for TRV by the owner, the head of the protected object should be made based on design decisions or the conclusion of specialists in the field of safety, and not on advertising booklets from manufacturers who called such fire extinguishing systems universal.