RU130857U1 - FIRE EXTINGUISHING DEVICE FOR STORAGE STORAGE WAREHOUSES - Google Patents

Abstract

Fire extinguishing device in shelves with shelving storage, containing a pipeline, sprinklers, a device launcher and a screen, the screen is mounted above the rack and facing with its concavity towards the rack, sprinklers are installed on the pipeline to allow water to be supplied to them, a pipeline with sprinklers is installed between the screen and a rack, characterized in that the edges of the screen are made and arranged to allow the formation of a water curtain along the rack.

Description

Technical field

The utility model relates to fire extinguishing devices used in warehouses with shelf storage.

State of the art

The closest technical solution (prototype) is a fire extinguishing device in warehouses with shelf storage (RF patent No. 2403929 date of publication 11/20/2010).

The device for extinguishing fires in rack warehouses consists of a distribution pipeline with irrigators (sprinklers), which runs centrally along the racks at the upper point at a distance from the cargo, ensuring the opening of the spray of sprayed jets across the width of the rack. Above the distribution pipeline in its immediate vicinity is a screen made in the form of a broken plane or hemisphere, with an apex above the center of the rack, and, accordingly, the distribution pipeline. The screen is designed to accumulate heat fluxes, i.e. holding rising warm air (and / or combustion products) in the space directly below the screen. The angle between the planes of the screen (or chords connecting in the diametrical plane the center of the screen in the form of a hemisphere with its edges) is equal to the angle of the torch opening of the sprayed jets. Projections of the screen and the rack on the horizontal plane in the particular case may coincide. Sprinklers with a starter from an electrical signal and a liquid flow warning device are installed on the distribution pipeline. When a fire occurs, the heat flux rises and concentrates at the upper point under the screen, which contributes to the operation of the sprinklers. The operation of one sprinkler leads to the movement of the water flow in the distribution pipe and the closure of the contacts in the liquid flow signaling device. Further, the signal received from the liquid flow detector is processed and a command is issued to start the group of sprinklers, i.e. all sprinklers installed in the distribution pipeline above the rack where the burning center has arisen.

The disadvantage of the prototype is the low reliability of the device. When one of the sprinklers is triggered, the flow rate is low and, as a result of prolonged stagnation of water, rust and deposits can appear on the walls of the pipeline, as a result of which the liquid flow signaling device does not work, as a result of which it is impossible to extinguish the fire.

The technical result of the proposed utility model is to increase the reliability of the device due to direct control of the beginning of the fire.

This goal is achieved due to the fact that in the fire extinguishing device in warehouses with rack storage containing a pipeline, sprinklers, a device launcher and a screen, the screen is installed above the rack and facing its concavity towards the rack, sprinklers are installed on the pipeline with the possibility of feeding into water, a pipeline with sprinklers is installed between the screen and the rack, the edges of the screen are made and arranged to allow the formation of a water curtain along the rack

Brief Description of the Drawings

The utility model is illustrated in the drawing, which schematically shows an installation option of the device.

Utility Model Disclosure

The drawing shows: screen 1, pipe 2, sprinkler 3, sensor 4, inner surface 5, ceiling 6, rack 7, floor 8.

The main elements of the device are rack 7, screen 1, pipe 2, sprinkler 3, sensor 4, and device launcher.

The rack 7 is a multi-tiered structure consisting of surfaces of various shapes fixed between the racks, with the possibility of placing various objects or materials on these surfaces, for example: Academician. Dictionaries and Encyclopedias on the Academician. Great Soviet Encyclopedia. Rack URL: http://dic.academic.ru/dic.nsf/bse/135886/Stellage (accessed 12.24.2012). Shelving 7 is usually installed on the floor 8.

The screen 1 can be made in the form of either a hemispherical or semi-cylindrical rectangular plate in plan view, or in the form of a rectangular planar plate with an inflection parallel to its two edges. The screen 1 is placed between the ceiling 6 and the shelf 7. The projection boundaries of the screen 1 can coincide or protrude beyond the boundaries of the projection of the rack 7 to the floor 8. The screen 1 with its top facing the ceiling 6, and the inner surface 5 opposite the ceiling, facing the rack 7. In this case, the screen 1 is facing the shelf with its concave side, and the convex side of the screen is facing the ceiling 6.

Pipeline 2 consists of two or more pipes connected in series with each other (for example: Academician. Dictionaries and encyclopedias on the Academician. Explanatory dictionary of the Russian language Kuznetsova. Pipeline URL: http://dic.academic.ru/dic.nsf/kuznetsov/ 64786 / pipeline (circulation date 12.24.2012)). Partially, the pipeline 2 is located between the rack 7 and the screen 1, as a rule, longitudinally to its long edge, with the possibility of connection with a pump that pumps water into the pipeline 2.

Sprinkler 3 is designed to spray water. Sprinkler 3 can be either deluge, described for example in the source: Wikipedia. Free encyclopedia. Drencher sprinkler URL: http://ru.wikipedia.org/wiki/Drencher sprinkler (accessed 12/21/2012), or sprinkler, for example: Academician. Dictionaries and Encyclopedias on the Academician. Dictionary of emergency situations. Sprinkler sprinkler URL: http://dic.academic.ru/dic.nsf/emergency/3824/Sprinkler sprinkler (accessed 12.24.2012). The forming element of the deluge sprinkler and sprinkler sprinkler is the base, made in the form of a straight circular cylinder, equipped with an external thread. Inside the base there is a through channel located along the axis. A filter is attached to one end of the base. On the other hand, a holder is attached to the base from the filter. The holder can be made in the form of an arc. A divider is mounted in the central part of the holder. In contrast to the deluge sprinkler, the sprinkler sprinkler is additionally equipped with the following elements: a stopper on the base side, blocking the channel, a destructible element installed between the stopper and the divider and representing a capsule filled with liquid, or a tin alloy with additives that are destroyed when the temperature rises. When a water stream enters the divider, a water stream is sprayed. The sprayed stream consists of fine droplets and has the form of a hemispherical torch. Sprinklers 3 are fixed on the pipeline 2 with the possibility of spraying water jets in the direction of the rack 7.

The sensor 4 is made in the form of a device that provides a signal that indicates a change in the values characterizing the presence of fire (for example, temperature increase, smoke concentration, flame formation, etc.). Sensors 4 are located in the Central part of the screen 1 at a minimum distance from it. Sensors 4, as a rule, are equidistant from each other. In the case of using a sprinkler sprinkler 3 as a sprinkler, in a particular case, the device can be performed without a sensor 4, i.e. the function of the sensor 4 in this case can be performed by a thermal lock or a thermosensitive flask, which is part of the sprinkler type sprinkler 3.

The means for starting the device is made in the form of a device that provides either the destruction of the destructible element in the sprinkler sprinkler, or the movement (opening) of the shut-off device in the pipeline 2 with the subsequent supply of water to the deluge sprinklers, or the start-up of the pump for supplying water to the deluge sprinklers through the pipe 2 in the absence of a shut-off devices. Depending on the indicated, the device launch means are installed on sprinkler sprinklers, a shut-off device in pipeline 2 or on a pump.

Utility Model Implementation

The utility model is implemented as follows.

The rack 7 is placed on the floor 8. Between the ceiling 6 and the rack 7, the screen 1 is fixed. Sensors 4 are fixed in the central part of the screen 1 from the side of the inner surface 5 at a minimum distance from the screen 1. The part of the pipeline 2 intended to accommodate the sprinklers 3 is installed between the rack 7 and the shield 1. Then, the sprinklers 3 are screwed into the pipe perpendicular to the axis of the pipe at an equidistant distance from each other. In the case of the installation of deluge sprinklers, the pipeline 2 is equipped with a locking device. The locking device is installed so that water access to deluge sprinklers is blocked in the absence of fire. On the locking device, in the position that prevents the flow of water to the irrigators 3, set the device trigger. In the absence of a shut-off device, a device trigger is installed on the pump. In the case of installation of sprinkler sprinklers, a means of launching the device is installed on each destructible element of such sprinkler 3. The device is filled with water under pressure to its cutoff in the absence of fire.

When a fire occurs within the rack 7, hot air (smoke) rises to the screen 1. When hot air (smoke) reaches the inner surface 5 of the screen 1, an accumulation of hot air (smoke) occurs in the central part of the screen 1, and, consequently, the temperature rises air (smoke concentration) in the central part of the screen 1. Sensor 4, located in the zone of increasing air temperature (smoke concentration), reacts to changes in air temperature (smoke concentration) by applying the corresponding signal. Sensor 4 transmits a signal to the device launcher. The signal is transmitted either directly from the sensor 4 to the means for switching on the water supply, or through auxiliary units. If sprinkler sprinklers are installed on the pipeline 2, then the device launching means destroys the destructible element. If deluge sprinklers are installed on the pipeline 2, then the device launching means acts on the locking device in the pipeline 2 with the provision of water supply to the deluge sprinklers. If dewatering sprinklers are installed on the pipeline and there is no shut-off device in the pipeline 2, then the device launching means starts the pump. After the actuation of the means for switching on the water supply, water under pressure through the pipe 2 enters the sprinkler 3, and then enters the divider. There is a spray of water flow. As a result of the spraying of those droplets of the stream, which are directed towards the rack 7, the fire is extinguished. At the same time, those drops of flow that are directed towards the screen 1, reaching the inner surface 5, change their direction of motion and flow down the inner surface 5 of the screen 1. When the sides bordering the screen 1 are reached, the drops fall down, forming a water curtain that prevents the spread of the fire .

Thus, the use of the combination of the above characteristics provides an increase in the reliability of the device due to direct control of the processes of the beginning of fire fighting.

Claims (1)

Fire extinguishing device in shelves with shelving storage, containing a pipeline, sprinklers, a device launcher and a screen, the screen is mounted above the rack and facing with its concavity towards the rack, sprinklers are installed on the pipeline to allow water to be supplied to them, a pipeline with sprinklers is installed between the screen and a rack, characterized in that the edges of the screen are made and arranged to allow the formation of a water curtain along the rack.

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