KR20030053096A - System for suppressing fire in cable duct - Google Patents

Abstract

PURPOSE: Provided is a fire extinguishing system for cable duct which lets fire extinguishing water and mist sprayed to upper and lower tray respectively to put out fire so that it raises efficiency in extinguishing the fire. CONSTITUTION: The fire extinguishing system for the cable duct comprises the parts of: a guide rail(10) which is set at ceiling of the cable duct; a spray device(12) which lets fire extinguishing water put out fire at an upper tray among trays for power lines and makes mist extinguish fire at the bottom by convection of the mist, with including a mobile device(14), a support bar and a spray(18); and plural spray headers(30) which are placed at the spray device at regular intervals in length direction, with getting a water curtain formed at both sides of a fire zone to bar fire from being spread.

Description

Fire extinguishing system for power joints {System for suppressing fire in cable duct}

The present invention relates to a fire extinguishing system for electric power tools, and more particularly, to a fire extinguishing system for electric power tools that can extinguish a fire while moving during a fire of the electric power tools and can extinguish fire by spraying fire and mist simultaneously.

In general, a variety of fire extinguishing facilities such as fire hydrant, sprinkler, fire extinguisher, etc. are spread or installed to extinguish or extinguish it in case of fire. In addition, such various fire extinguishing systems can be divided into fire extinguishing equipment using fire water and fire extinguishing equipment using gas. Among them, fire extinguishing equipment using fire water includes sprinklers, spray equipment, mist equipment, etc., which discharge water in a spray form in conjunction with an automatic fire detection device, as well as various devices of fire hydrants and fire brigades. In addition, the fire-fighting equipment using the fire water in this way is provided with a nozzle or spray having a predetermined shape, particle size, speed, etc., the fire water can be sprayed in various forms.

On the other hand, since power plants in large factories or buildings cannot be frequently monitored from the outside, equipment for preventing fires or equipment for extinguishing or extinguishing fires should be provided. In addition, in the case of the electric power tool, as shown in FIG. 1, since a plurality of power lines 1 are collected and stacked in the power line tray 2, a fire extinguishing facility capable of extinguishing the entire power lines uniformly in the event of a fire is required. have.

As a conventional fire extinguishing facility in the event of a fire in a power outlet, a sprinkler system is mostly used. The closed sprinkler applied to the conventional sprinkler system has an open sprinkler configured to open or close the sprinkler head due to heat dissipation or dropping due to heat in case of fire, a closed sprinkler installed recessed on the ceiling, and flame growth. There is a repetitive open / close sprinkler configured to open or close the sprinkler head by an opening / closing drive unit which moves according to the temperature rise around the sprinkler head by the sprinkler head or the temperature around the sprinkler head by the extinguishing process. In addition, as the prior art of the sprinkler has a configuration that can be reused while simplifying the structure of the sprinkler as disclosed in Korean Patent Application No. 96-020815.

In addition, a fire extinguishing device using gas is a method of extinguishing a fire by injecting a gas into a fire zone and inactivating the fire zone. The fire extinguishing effect is higher than that of a firefighter, but the oxygen concentration is lowered to affect safety accidents and casualties. Of course, the disadvantage is expensive. In addition, some of the gas extinguishing gas currently being used is restricted or cannot be used by law, and there is a problem in that the cost is excessively consumed due to the use of relatively harmless and expensive extinguishing gas.

In addition, the fire extinguishing method by the sprinkler has an advantage in extinguishing the ignition point by direct water injection of the nozzle, but has a disadvantage in that a large amount of water is required due to the direct water spraying, and a large capacity storage tank or facility is required. In particular, inside the sealed power joint, there is a disadvantage in that the suppression effect is lowered because the fire water cannot be directly supplied to the corresponding fire part in case of power line fire.

In addition, although the same applies in any case, it is also important to extinguish a fire quickly because the fire spreads in a short time and the power line cannot be recovered, especially in the case of a fire in the power community, but prevention of fire spread is more important. Nevertheless, there is no suitable method and means for preventing the spread of such a fire.

In addition, there is a need to provide a method for extinguishing a fire initially with a small amount of firefighters when a fire occurs.

Accordingly, the present invention has been made to solve the above problems and problems, it is an object of the present invention to provide a fire extinguishing system for power tools that can effectively extinguish or extinguish a fire generated in the power tools.

Another object of the present invention is to use a spray nozzle to cut off the oxygen in the spray or mist protection space in the space where the fire occurs, and to extinguish with a small amount of water using the cooling and suffocating effect of the power tool for the power tool. To provide.

Still another object of the present invention is to provide a fire extinguishing system for a power tool that can locally and intensively extinguish the fire occurrence area in the power tool.

In particular, the main object of the present invention is to provide a fire extinguishing system for electric power tools that can prevent its spread in the event of a fire.

According to the present invention, when the spray or sprinkler is sprayed on the upper part of the tray and the mist is sprayed in the downward direction, the specific gravity of approaching the flame point is increased by convection, so even if a fire occurs in any of the upper tray and the lower tray, It can be suppressed or digested.

The fire generated from the upper tray where the power line is placed is directly sprayed by spray or sprinkler gas or fire water, and the lower tray is blocked by oxygen in the protective space by the convection of mist, cooled and suffocated to effectively extinguish the fire. Can be.

Locally fired fires in power cavities can be moved and put out in place and extinguished.

In particular, by installing a header for a one-termination (fixed to water) curtain at regular intervals of the power tool, and spraying the jet of the water curtain through the header can prevent the spread of fire.

1 is a cross-sectional view showing a state of a general power tool.

Figure 2 is a side view showing a fire extinguishing system for a power tool according to the present invention.

Figure 3 is a side view showing the spraying state of the spraying device of the fire extinguishing system of FIG.

Figure 4 is a graph showing the change in temperature over time between the fire water and the mist sprayed by the spray device in the fire extinguishing system according to the present invention.

5 is a graph comparing the flow rate of the fire water between the stationary sprayer and the mobile sprayer.

♣ Explanation of symbols for the main parts of the drawing ♣

2: power line tray 10: guide rail

12: spray device 14: moving device

16: support 18; sprayer

20: spray nozzle 22: mist nozzle

24: sensing device 26: controller

30: spray header

These objects, in the power tool extinguishing system, the guide rail is installed on the ceiling of the power tool; It is installed on the guide rail, and in case of fire, fire is directly sprayed to the upper tray among the power line trays installed in the power hole, and the fire is extinguished. The fire of the lower tray and the bottom of the power hole is sprayed with mist. A spray device configured to be suppressed by suffocation of flame by convection and cooling; And a plurality of spray headers installed on the guide rails at predetermined intervals along the longitudinal direction and installed on both sides of the fire generating area to spray water curtains to prevent the spread of fire. It can be achieved by the digestive system.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, in Fig. 2 (->), the fire extinguishing system according to the present invention is installed on the ceiling of the power tool. The fire extinguishing system includes a guide rail 10 installed on the ceiling of the power tool. The guide rail 10 may be formed by a rail, a chain, other guide means, or the like, and may be arbitrarily selected by a worker to be joined.

The guide rail 10 is provided with a spray device 12 to move or reciprocate (-> round trip). The spraying device 12 includes a moving device 14 installed to move or reciprocate along the guide rail 10. The moving device 14 may be constituted by a device such as a roller, an actuator, a sprocket, or the like, which may be appropriately selected according to the shape of the guide rail.

For example, the cube support 16 is integrally or detachably mounted to the moving device 14 so that the moving device can move together as the moving device moves.

The support 16 is provided with a plurality of sprayers 18 connected to a fire water supply (not shown) at regular intervals. In particular, each atomizer 18 is preferably configured to be able to take the sprinkler method and the mist spray method at the same time. That is, spray nozzles 20 for directly injecting fire water are provided on both sides of each sprayer 18, and mist nozzles 22 are provided between the spray nozzles 20.

According to the configuration of each atomizer 18, fire water is directly injected by the spray nozzles on the trays located on the upper side of the trays 2 formed on both sides of the electric power tool, while the trays located on the lower side are connected to the mist nozzles. Mist is sprayed by.

Optionally, in place of the support 16 of the sprayer 12, a detection device 24 for detecting the location of the fire is installed so that the location of the fire or the relatively severe fire area can be accurately detected. Intensive spraying of firefighters or mist. Of course, when the sensing device 24 is installed, the fire extinguishing system according to the present invention analyzes the signal received from the sensing device 24 and automatically moves the moving device 14 to move the spraying device 12 to an appropriate position. And a controller 26 for controlling.

In particular, the power tool fire extinguishing system according to the present invention has a plurality of spray headers 30 that can provide a water curtain (W) for each predetermined section to prevent the fire from spreading out of the fire generating area to other areas It is preferable that it is provided in the predetermined position of the spraying apparatus 12. Each spray header 30 is preferably sprayed with water spray or mist in the slit lamina jet method or water curtain method. Of course, each spray header is preferably connected to and controlled by the controller 26.

Hereinafter, the operation method and the operation mode of the fire extinguishing system of the power tool according to the present invention will be described in detail.

For example, when a fire occurs in the electric power tool, firefighters and mist are sprayed from each atomizer 18 installed on the support 16 of each atomizer 12 manually or automatically to extinguish the fire. That is, the firefighters sprayed from the spray nozzles 20 installed on both sides of each sprayer 18 are directly sprayed on the power line trays of the upper ones of the trays 1 to extinguish the fire directly, while from the mist nozzles 22 The sprayed mist is sprayed to the bottom of the lower tray or the power tool hole so that the mist cools and smothers the flame by convection so as to completely extinguish and extinguish the fire in the entire fire zone.

Optionally, when the sensing device 24 is installed on the support 16 of the spraying device 12, the moving device 14 is operated by the control of the controller so that the spraying device 12 is located at the fire position or relative. After being precisely moved to a severe fire zone by using each atomizer 18 to extinguish the fire as described above, the extinguishing efficiency or extinguishing efficiency can be improved.

In particular, when a fire occurs in a predetermined area, the controller 26 operates the respective spray headers 30 installed on both sides of the fire-generating fire. When the spray header 30 is operated, water or mist is sprayed from the spray header to form a water curtain (W). Accordingly, it is possible to prevent the flame in the fire generating region from moving or spreading around.

As a result, the atomizer is provided with a spray nozzle, a mist nozzle, and a spray header for forming a water curtain, so that the mist is sprayed in the downward direction and the specific gravity of approaching the flame point by convection increases, so that either of the upper tray and the lower tray is used. Even if a fire breaks out, the fire extinguishing performance can be uniformly prevented and the spread of fire to the surroundings is prevented. Accordingly, the upper tray is fired directly by the spray nozzle, and the lower tray is able to block the oxygen in the protective space by mist convection and extinguish the fire by cooling and suffocating. It can be prevented to extinguish a fire quickly, and can be easily and quickly recovered later.

When extinguishing the fire generated in the electric power tool in the manner described above, as shown in the graph shown in Figure 4, it can be seen that the extinguishing effect is increased by using the extinguishing capacity of the mist and the spray.

In addition, as shown in FIG. 5, when the spray device is configured to be mobile, it is understood that the use flow rate is significantly reduced, thereby significantly increasing the extinguishing efficiency or extinguishing efficiency of the fire.

In addition, it is possible to prevent the spread of the fire, so that the early suppression and later return of the fire can be easily and quickly performed.

As a result, according to the fire extinguishing system for electric power tool according to the present invention, in addition to extinguishing and extinguishing the fire of the upper tray by the direct injection of firefighters, as well as suffocating and cooling by the convection in the lower tray and the floor by the mist By extinguishing the fire, there is an effect that the overall fire suppression and extinguishing efficiency is improved.

In addition, there is an advantage that the fire extinguishing efficiency is further improved by moving to a fire occurrence area or a relatively fire-prone area to extinguish the fire quickly and automatically.

In addition, it is possible to form a water curtain by the spray header to prevent the spread of fire has the advantage of further improving the fire extinguishing efficiency and recovery efficiency.

While a preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and changes can be made without departing from the scope of the appended claims.

Claims (3)

In power system fire extinguishing system, A guide rail installed on the ceiling of the power joint; It is installed on the guide rail, when a fire occurs, the fire of the fire is directly sprayed to the upper tray of the power line trays installed in the power community, the fire is extinguished, the fire of the lower tray and the bottom of the power community is sprayed mist A spray device configured to be extinguished by asphyxiation and cooling of the flame by convection; And Fire extinguishing for power tools characterized in that the spraying device is installed at a predetermined interval along the longitudinal direction, and installed on both sides of the fire generating area to spray a water curtain for preventing the spread of fire. system. The method of claim 1, wherein the spray device A moving device installed to be movable along the guide rail; A support installed in the moving device; It is installed at a predetermined interval on the support, and each including two spray nozzles for direct injection of fire water, and a sprayer which is provided between the spray nozzles and integrally provided with a mist spray nozzle for spraying mist Fire extinguishing system for electric power tool characterized in that. According to claim 1 or 2, wherein the support of the spraying device is provided with a sensing device for detecting the location of the occurrence of fire; And a controller for controlling the moving device to move the spray device to an appropriate position by analyzing the signal received from the sensing device, and a controller for controlling the operation of the spray header.