RU2464058C1 - Water extinguishing system - Google Patents

Abstract

FIELD: fire fighting means.

SUBSTANCE: invention relates to the field of fire-fighting equipment, namely, the fire fighting means, particularly to automated water extinguishing installations. Water extinguishing system comprises a distribution pipeline network equipped with sprinklers with a controlled start. Control and indicating and fire fighting control device, a fire-warning detector and a signal line, which includes start initiating devices, are connected with sprinklers. And the distribution pipeline network is divided into zones, and the system is additionally equipped with addressable devices of remote start corresponding to each zone, which are included in other signal line connected to the control and indicating and fire fighting control device. The sprinkler body is made in the form of a fitting with a through hole and a threaded part that passes into the end valve part, and the fitting through axisymmetric bracket consisting of two vertical and three-dimensional enforcement ribs and two oblique prismatic edges rigidly connected to them, is connected with a hollow cylindrical sleeve with an inside thread interacting with the clamping bolt. And from the other side to the sleeve, perpendicular to its axis, a spraying device is mounted in the form of a rosette with petals arranged relative to each other with a gap. Axisymmetrically on the side of the fitting opposite to the threaded part, a locking disk valve is located connected to the element of automatic activation which is made in the form of a glass bulb which is a heat lock.

EFFECT: higher reliability of water extinguishing system.

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Description

The invention relates to the field of fire fighting equipment, and in particular to means for extinguishing a fire, in particular, to automatic water (foam) fire extinguishing installations.

Known sprinkler water fire extinguishing system containing a water supply and distribution pipe network with sprinkler sprinklers installed on it ["Design of water and foam automatic fire extinguishing installations", L.M. Meshman and others, under the general editorship of N.P. Kopylov - M .: VNIIPO EMERCOM of the Russian Federation, 2002, p.199].

The disadvantage of such a system is that with significant heat output of the outbreak, a situation often arises when the outbreak size is larger than the irrigation zone by the opened sprinklers. With the further development of the fire, this difference only increases, which can lead to uncontrolled development of the fire and catastrophic consequences.

Closest to the claimed object is a water fire extinguishing device in which a sprinkler sprinkler with a controlled start and smoke detectors are used in the distribution network (patent RU 2414966 - prototype). In this case, the fire signal from the triggered smoke detector arrives at the fire alarm and control device (PPKiUP), which determines the address of the triggered fire detector and sends a command to the starting devices of the group of controlled sprinkler sprinklers located near the triggered fire detector.

The disadvantage of this device is that when fire detectors are triggered, the sprinkler sprinklers closest to them are forcibly opened, however, if there are air flows in the protected room, fire detectors installed outside the fire zone may be the first to fire, and therefore, fire sprinklers that will open will irrigate a combustion free zone.

A technically achievable result is an increase in the reliability of the water extinguishing system.

This is achieved by the fact that in a water fire extinguishing system containing a pipeline distribution network equipped with sprinkler sprinklers with a controlled start-up, a fire alarm and control device is connected to which a fire alarm loop with fire detectors included and a signal line that includes devices start-up initiation, electrically connected with controlled sprinkler sprinklers, while the distribution pipe network is divided into zones, while the system is equipped with additional In addition to the addressable remote start devices corresponding to each selected zone, which are included in another signal line connected to the control panel and the fireman, the sprinkler body is made in the form of a fitting with a through hole and a threaded part passing into the end valve part, while the fitting by means of an axisymmetric bracket, consisting of two vertical volumetric stiffeners and two inclined prismatic ribs rigidly connected to them, is rigidly connected to the hollow cylinder an indigenous sleeve with an internal thread cooperating with a clamping bolt that presses the glass flask against the poppet valve, while on the other hand, a spray device is attached to the sleeve perpendicular to its axis in the form of a socket with petals located relative to each other with a gap, and axisymmetrically to the side of the fitting opposite the threaded part, a locking poppet valve is connected through the gasket, connected to the element of automatic operation to exceed the set temperature in the room , which is made in the form of a glass bulb, which is a thermal lock.

Figure 1 presents a diagram of a water fire extinguishing system, figure 2 is a diagram of the sprinkler.

The water fire extinguishing system (Fig. 1) consists of a distribution network 1 with sprinklers 2 installed on it with a controlled start, a control and fire control device 3, to which a fire alarm cable 4 is connected with fire detectors 5.1-5.M and signal line 6, which includes starting devices for starting 7.1-7.N, as well as addressing devices for remote starting 8.1-8.N, and the entire pipeline distribution network 1 is divided into zones 9.1-9.N (zones are indicated by a dotted line in the diagram) so that ka gives to the subsequent zone overlaps a portion of the previous one. Each of these zones is associated with an address device for remote start 8.1-8.N, i.e. Zone 1 corresponds to device 8.1, zone 2 - device 8.2, zone 3 - device 8.3, etc.

Thus, the fire extinguishing zones are formed in such a way that when a fire occurs during the initiation of the corresponding remote start device, the sprinklers of the zone that will more closely correspond to the burning area are forcibly opened, or the center of this zone will be closest to the burning center. In this case, automatic start of the water fire extinguishing system at a predetermined address is provided by fire detectors 5.1-5.M (in our case, M = N + 1), while a pair of detectors 5.1 and 5.2 fall into zone 9.1, a pair of detectors 5.2 and 5.3 into the zone 9.2, a pair of detectors 5.3. and 5.4 - to zone 9.3, etc. Each of the pairs of detectors described above is assigned a launch initiation device 7.1-7.N, which provides for the forced opening of controlled sprinklers and, accordingly, the release of extinguishing agent into the corresponding protected zone 9.1-9.N. Manual start fire extinguishing systems provide remote start devices 8.1-8.N.

The first and second signal lines may be combined. Zones can be formed in such a way that each subsequent half overlaps the previous one. Maybe around each of the zones, except the extreme, 4 more zones are distinguished, each of which overlaps the first by a quarter. It may be that around each of the zones, except the extreme, 4 more zones are distinguished, each of which half overlaps the first.

Sprinkler sprinkler (figure 2) contains a housing made in the form of a nozzle 10 with a through hole and a threaded part (external thread — by means of a threaded part, the sprinkler is mounted on distribution pipelines), passing into the end valve part 11. The threaded nozzle 10 by means of an axisymmetric bracket consisting of of two vertical volumetric stiffening ribs 12 and rigidly connected with them two inclined prismatic ribs 13, is rigidly connected to the hollow cylindrical sleeve 14 with an internal thread interacting with a clamping bolt 16, which presses the glass bulb 15 against the poppet valve 17. On the other hand, a spray device in the form of a socket 19 with petals 20 located relative to each other with a gap (not shown) is attached to the sleeve 14, perpendicular to its axis.

Axially symmetrically on the fitting, on the side opposite the threaded part, a locking poppet valve 17 is located through the gasket 18, which is connected to the automatic actuation element for exceeding the set room temperature, which is made in the form of a glass bulb 15 with a diameter of 5 mm, which is a thermal lock. Depending on the operating temperature, the liquid in the flask has a certain color: 68 ° C - red, 57 ° C - orange. The response temperature is selected depending on the category of protected premises. In the event that a thermosensitive element - flask - is removed from the proposed sprinkler, it automatically becomes a deluge sprinkler.

Sprinklers can be made of the following types: with a flat outlet, which are installed vertically with the outlet down; with a concave socket - they are installed vertically upwards and universal - are installed both with the socket down and the socket up. All of them are automatic flask type standard response sprinklers.

The fire extinguishing system operates as follows.

In the absence of people in the protected room, the system operates in automatic mode. When two smoke detectors are triggered, for example 5.2 and 5.3, located in the same protected zone 9.2, PPKiUP 3 receives a signal about their operation and switches to the "Fire" mode. Further, through the start initiation device 7.2, PPKiUP 3 gives a signal to open the corresponding group of controlled sprinklers 2 located in zone 9.2, through which the extinguishing agent is evenly distributed over the protected zone.

Sprinkler sprinkler works as follows.

When the temperature rises during a fire in a production building, the heat-sensitive element (thermal lock) - bulb 6 (at a response temperature of 68 ° C - red, or 57 ° C - orange) breaks and a fire extinguishing agent is thrown out through poppet valve 8, sprayed using a spray outlet 19 with petals 20, it enters the fire. Sprinkler sprinklers are placed on distribution pipelines (not shown) of sprinkler installations under the ceiling of the room from the condition of irrigation with one sprinkler 9 ÷ 12 m ² floor area. It is possible to use with the following types of extinguishing agent: water, aqueous solutions, foam. The multiplicity of the foam is 13.2%, the concentration is 3%. As a foaming agent in such fire extinguishing systems, a fluorosynthetic foaming agent of the "Multipena" type is used. It also works on a 6% aqueous solution of fluorinated foaming agent "Sublayer" under conditions of smoke in the room.

If there are people in the protected room, the fire can be detected visually until the fire alarm system is triggered. At the same time, to start the fire extinguishing system, one of the addressable remote start devices is initiated manually (for example, by pressing a button) closest to the fire source and corresponding to the protected zone. For example, if there is a fire in zone 9.2, the remote start device 8.2 should be initiated. PPKiUP 3 receives a signal from this device and generates a command to open the corresponding sprinklers 2 by issuing a command to the device initiating the launch 7.2.

Thus, it is possible to form an optimal irrigation area, as a result, the reliability of the fire extinguishing installation is significantly increased.

Claims (1)

A water fire extinguishing system comprising a pipeline distribution network equipped with sprinkler sprinklers with a controlled start-up, a fire alarm and control device, to which a fire alarm loop is connected with fire detectors included, and a signal line that includes start-up devices electrically connected to controlled by sprinkler sprinklers, while the pipeline distribution network is divided into zones, while the system is equipped with additional addressable devices remote start properties corresponding to each selected zone, which are included in another signal line connected to the control panel and firefighter control device, characterized in that the sprinkler body is made in the form of a fitting with a through hole and a threaded part passing into the end valve part, with this fitting through an axisymmetric bracket, consisting of two vertical volumetric stiffeners and rigidly connected with them two inclined prismatic ribs, is rigidly connected to the hollow cylinder a spherical sleeve with an internal thread interacting with a clamping bolt that presses the glass flask against the poppet valve, while on the other hand, a spray device is attached to the sleeve perpendicular to its axis in the form of a socket with petals located relative to each other with a gap, and axisymmetric, on the side of the fitting opposite the threaded part, a locking poppet valve is located through the gasket, which is connected with the automatic actuation element to exceed the set room temperature, to ory formed as a glass bulb, which is a thermal lock.

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