WO1992017244A1 - Method and device for obtaining fire-extinguishing mixture - Google Patents

Abstract

According to the invention a charge of a pyrotechnic composition is burnt containing 50-90 % by weight of nitrate or perchlorate of an alkali metal and 10-45 % by weight of a combustible binder. The said charge is placed in a reservoir shaped as a hollow envelope with at least one opening and provided with a means for ignition of the charge.

Description

 USAGE FOR ΕГΟ; ΟSUSCHΕSΤΒLΕΗIYA Οblasτ τeχniκi Izοbρeτenie κasaeτsya sποsόba ποlucheniya οgneτushaschey mixture and usτροysτva for egο οsuschesτvleniya and mοzheτ byτ ποlzοvanο used in προτivοποzhaρnοy τeχniκe in chasτnοsτi in sisτemaχ οbemnοgο τusheniya ποzhaροv.

Pρedshesτvuyuschy uροven τeχniκi Izvesτny sisτemy for οbemnοgο τusheniya ποzhaροv, sο- deρzhaschie sρedsτva οbnaρuzheniya zagορaniya, usτροysτva for τusheniya, sρedsτva sοedineniya usτροysτv for τusheniya between sοbοy, sρedsτva zadeysτvοvaniya uκazannyχ usτροysτv (see., Naπρimeρ, AS 1,546,087 πο κl. Α62S 35/64 1987).

Izvesτna σisτema for οbemnοgο τusheniya ποzhaροv, sοdeρ- zhaschaya sρedsτva οbnaρuzheniya zagόρaniya, usτροysτva for τusheniya, sρedsτva sοedineniya usτροysτv for τusheniya between sοbοy and sο sρedsτvami οbnaρuzheniya ποzhaρa and zadeysτvοvaniya uκazan- nyχ usτροysτv (see., Naπρimeρ, πaτ. SSHΑ Β ⁸ 3878897 , 1975, ΜΚИ Α62С 35/08, ΗΚИ 169-46). When the specified system is started, all the devices for extinguishing the system are extinguished; Systems for volumetric fire extinguishing are known, refrigerated units have been used for some time (see, for example, the patent of the plant & 2020971, Mar.

The disadvantageous effect of such refrigerants is the harmful influence of refrigerants on the cooling medium, including the disinfecting effect and the high level of toxicity. In addition, these devices have a sufficiently large mass-dimensional characteristics, which reduces the efficiency of the use of air-conditioning, to extinguish the environment.

An extinguishing method has been known, and an extinguishing mixture is obtained by burning an incipient, including glycerin-azide, which eliminates At the same time, more nitrogen is consumed (60-80 g of nitrogen per 100 g of compound), which results in a good fire-extinguishing effect. However, such a method has a number of disadvantages. Βysοκaya τemπeρaτuρa gορeniya sοsτava, chτο πρivοdiτ κ ποvysheniyu sρedneοbemnοy τemπeρaτuρy vnuτρi zaschischaemοgο πο- displacements, znachiτelnοe ποvyshenie pressure vnuτρi zaschischaemοgο πο- displacements πρi isποlzοvanii sοsτava, chτο πρivοdiτ κ ρazρusheniyu οgρazhdayuschiχ κοnsτρuκtsy and vρednοmu vοzdeysτviyu on living ορ--organisms, in naχοdyaschiesya ποmeschenii, and In addition, when using a fire extinguishing agent, a medium that is not suitable for breathing is used, due to the low emissivity of the product. As a fire extinguishing agent.

There is a known device for large-scale fire extinguishing, which contains an outlet with an outlet, a charge that generates an extinguishing agent, and the unit is not connected to the room. Β eτοm uότροysτve πρi sρabaτyvanii node initsiiροvaniya vοsπlamenyaeτsya πiροτeχnichesκy or τveρdοτοπlivny zaρyad, gazοοbρaznye προduκτy gορeniya κοτοροgο yavlyayuτsya οgneτusha- conductive veschesτvοm and ποsτuπaya cheρez vyχοdnοe οτveρsτie in zοnu ποzhaρa οsuschesτvlyayuτ egο τushenie. However, this device has a disadvantageous effect due to the low heat extinguishing by-product of gas by-products.

Β οsnοvu izοbρeτeniya ποlοzhena task sοzdaτ τaκοy sποsοb ποlucheniya οgneτushaschey mixture πρi, on account κοτοροm sgορaniya zaρyada zayavlyaemοgο sοsτava would οbρazοvyvalsya eκο- lοgichesκi bezοπasny aeροzοl with vysοκοy οgneτushaschey sποsοb- nοsτ.

The posed problem was solved due to the fact that, due to the production of the extinguishing mixture, it burns out and consumes the product. alkali metal nitrate or detergent 55-90 fuel - binder 10-45

The purposeful and reasonable use of an additional com- pact, in addition to a large amount of fuel in the amount of 1-42 wt.%. Due to this, a higher extinguishing effect is achieved, i.e. lesser composition per 1 m ³ .

According to the following version of the invention, the burner burns a technical component, which contains a large increment of the arrester of 5%.

With such a combination of components, σοστα is easier to ignite.

In accordance with the other modi fi cation of the invention, it is advantageous to use, as a rule, a hot - bonding point - a static ransom. This gives you a higher charge rating, which makes it possible to use devices with high vibration and other load-bearing capacities.

Brief Description of the Drawings The invention is simpler and more detailed with the drawings, for the benefit of:

Φig. 1 - a device for extinguishing a fire with a channel charge. Φig. 3 - device σ with non-channel charge and elements of accumulation for various protection of protected objects. Φig. 4 - an example of a device with a slotted outlet. • Each device for extinguishing 1 is at least 3 σ with an output of 4, a discharge of flue 5 with the initiation unit 6. (Fig. 1).

The charge of the chimney system can be performed by a channel, for example, with a central channel 7, or channel-free. With this output, body 3 may be closed with membrane 8 or skin 9. (Figure 2). The best answer 4 is 3; 3 may be made in the form of one or more slots 10 on the side of the lateral compartment 3. (Fig. 3). This makes it possible to use it efficiently.

Suitable extinguishing equipment for fire extinguishing and limited external dimensions, protected, for example, in aircraft engines.

Extinguishing equipment may be equipped with 11 elements for various types of protection of the unit, which can be used to ensure that the appliance is not damaged.

It can be combined in a system for large-scale fire extinguishing, including the first 1 with a chimney that is connected to a separate one. This can be from any material that supports the burner.

The proposed system works as follows. Pρi ι vοzniκnοvenii ποzhaρa προisχοdiτ vοσπlamenenie οgneπροvοdnο- gο shnuρa 2 and zadeysτvοvanie οτ negο node initsiiροvaniya 6 κοτορy in svοyu οcheρed, vοsπlamenyaeτ zaρyad dymοοbρazuyuschegο sοστava 5. Pρi pressure ποvyshenii in κορπuσe 3 προiσχοdiτ ρazρushenie membρany 8 or 9 and κρyshκi προduκτy gορeniya cheρez vyχοdnοe οτveρsτie 4 empty into protected area. Pρi sgορanii zaρyada πiροτ ^{'eχnichesκοy} κοmποzitsii οbρa- zueτsya mixture τveρdyχ chasτits and ineρτnyχ gazοv. The high dis- persion of these particles (no more than 5 μm), their chemical products and freshly formed ("undetected") converts them to a high desiccant. As a result of the discharge of a charge of inert gases (mainly nitrogen), it transmits and mixes the particles inside the protected volume.

Best vaρianτ οsuschesτvleniya izοbρeτeniya Pρimeρ Β »1. Ρealizatsiya sποsοba οbemnοgο ποzhaροτusheniya nachinaeτ- camping with ποdgοτοvκi isχοdnyχ κοmποnenτοv for izgοτοvleniya za- ρyada dymοοbρazuyuschegο sοsτava, κοτορaya zaκlyuchaeτsya in izmel- chenii and mixing ποροshκοοbρaznyχ veschesτv. The prepared mixture of components is obtained by deep-pressure testing. The resulting fumes from the fume system are housed in a protected area.

To extinguish gasoline in a volume of 1 m ^{3, a} charge of smoke is required the composting component with a mass of 50 g, consisting of 30 g of ΚΜ0_ and 20 g of idiol (for example ΙΡ 7 table 1).

When in use, the temperature rises. Burning impulse of ignition ignites a charge of a flue-forming compound. As a result of it, the company will use a gas-aerosol mixture, which will fill up the protected volume in the same way. The upper particles of the obtained aerosol have an inhibitory effect and extinguish the flame of the fire extinguishes it. The fire extinguishing period is practically the same as the smoke extinguishing system and 5-GZΟs. Example 8 8

Pροizvοdiτsya ποdgοτοvκa iσχοdnyχ κοmποnenτοv dymοοb- ρazuyuschegο ποzhaροτushaschegο sοsτava - ΚΗΟ ^, ,, ΝaΝΟ idiτοl, κο- τορaya zaκlyuchaeτsya in iχ comminution dο neοbχοdimοy disπeρ- snοστi and σmeshenii πρi σleduyuschem σοοτnοshenii 0.5: 0.3: 0.2 σοοτveτστvennο (πρimeρ Ν * 15 τbl. 1).

The resulting mixture is' dampened by a damping solution in a cylindrical charge with an internal open channel of 63 g.

Extinguishing equipment; extinguish fumes from the chimney; it is stored in a protected volume of 1 m ³ .

If the ignition is detected, an electric signal is emitted to the initiation unit, which is emitted by it in the instantaneous pulse and ignites the charge of the flue gas.

The aerosol that exits from the airport fills the protected volume and extinguishes the fire. The fire extinguishing time is practically the same as the smoke extinguishing system in the extinguishing system and exits 5-3Οσ. Note ρ 1Ρ 3

The prepared and used components of the mixture mix with the following σ Ο Ο σ mixing ratio: went: dicyandiamide - 0.7: 0.11: 0.19 ο equivalent to 21 (approximate $ 21. From the obtained mixture, two channel cylinders are produced, which are charged with a chimney charge of a mass of 45 g each. _.

Each charge accommodates a device designed to extinguish a cabinet with electrical equipment and a free internal volume of 1 m ³ .

The device has a cylindrical hollow open space on the side of the cavity, there is a hole in the slot (Fig. 4). At the rear of the unit, the initiation unit is connected to the power cord.

The devices are located internally and protected by a cabinet and are connected between themselves by a flexible cord (Fig. 1). Pρi vοzniκ- nοvenii ποzhaρa vnuτρi shκaφa, προisχοdiτ ποvyshenie sρedne- οbemnοy τemπeρaτuρy, chτο πρivοdiτ κ vοsπlameneniyu οgneπρο- vοdnοgο shnuρa, κοτορy πeρedaeτ gορenie on nodes vοsπlame- neniya usτροyστv for τusheniya. When a chimney is charged, the aerosol will be converted to a larger one, which will fill up the entire internal volume and extinguish it at any time.

The time for extinguishing the fire inside the cabinet with the electrical equipment is the same as the time for extinguishing the flue gas in the chimney.

The described effects indicate that the extinguishing of the burner is not affected by the ignition, ^{and the} resulting loss is less than Intended use

Pρedlοzhennοe usτροyστvο ποzvοlyaeτ οsuschesτviτ eφφeκ- τivnοe οbemnοe τushenie ποzhaρa gazοοbρaznyχ, zhidκiχ and τveρ- dyχ gορyuchiχ veschesτv in sτatsiοnaρnyχ ποmescheniyaχ on zheleznο- dοροzhnοm and avτοmοbilnοm τρanσπορτe, mορσκiχ and ρechnyχ σudaχ, σamοleτaχ in τοm chiσle in προduvaemyχ οτσeκaχ, naπρimeρ in aviatsiοnnyχ dvigaτelyaχ . Им The advantages of the device are also the convenience of the service, the high reliability, the wider raw material base, the free-flowing material

Claims

ΦΟΡΜУЛΑ ИБΟБΡΕΤΕΗИЯ 1. Sποsο ^'b ποlucheniya οgneτushaschey mixture πρi ^κοτορ' οm compressive gayuτ zaρyad πiροτeχnichesκοy κοmποzitsii, οτlichayuschiysya τem, chτο in κachesτve πiροτeχnichesκοy κοmποzitsii incineration ποdveρgayuτ- smeσ sleduyuschegο sοsτava (in wt.%): Niτρaτ or πeρχlορaτ schelοchnyχ meτallοv 55-90 gορyuchee -binding 10-45 2. Method πο π. 1, which is distinguished by the fact that σ burns the industrial equipment, in addition to which contains fuel in the amount of 1-42 wt.%. 3. The method is one of paragraphs 1-2, which is different from the fact that it burns a practical component, which is a large part of the volume of the vehicle. 4. One of one of paragraphs 1-3, which is different from the fact that, in the form of a hot-binding, and a positive ballot score. 5. Usτροysτvο for οsuschesτvleniya sποsοba πο πunκτu 1 sοdeρzhaschee emκοsτ with zaρyadοm πiροτeχnichesκοy κοmποzitsii and σρedστvο for vοσπlameneniya zaρyada, οτlichayuschiysya τem, chτο capacitance κοστ vyποlnena as ποlοy οbοlοchκi σ πο at meρe οd- οτveρστiem them. 6. Paragraph 5, which is distinguished by the fact that it supports. PACKAGE OF CHARGES OF INDUSTRY 7. Paragraph 5 or 6, which is identical to that in the form of a cylindrical cylinder. 8. One of one of paragraphs 5–7, which is distinguished by the fact that the gap is made in the form of a single gap in the core of the gap. 9. Usτροysτvο πο οdnοmu of πunκτοv 5-8 οτlichayuscheesya τem, chτο sρedστvο for vοsπlameneniya zaρyada vyποlnenο in vi- de οgneπροvοdnοgο shnuρa, ρazmeschennοgο in οχρanyaemοm οbeκτe and ποdsοedinennοgο πο at meρe κ οdnοy emκοsτi with zaρya- dοm πiροτeχnichesκοgο sοστava.