JPH059115B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid curtain system along an indoor walkway.

When a fire occurs in a closed indoor space such as a hotel, hospital, department store, or underground mall, the people inside must be protected from the flames and smoke.

In particular, many of the materials used for indoor interiors in recent years, including synthetic fibers, emit highly toxic gases and smoke, and there is an urgent need to protect human lives from smoke.

The object of the present invention is to provide a device that can confine flames and smoke to the area where the fire occurred, prevent it from spreading to areas other than that area, and allow people to evacuate from that area. It is something.

Previously, for example, Special Publication No. 32817 (1972), Publication No. 49 (1973)
No. 43085, Jitko No. 54-40993, Jitko No. 54-40994
There is a technical concept of using an air curtain to block flames and smoke in the event of a fire, as in No. 1, but the idea of completely blocking the entire area of the fire scene from the fluid curtain is difficult. Of course, no fluid curtain has been used to protect the function of a passageway (even if the area of the passageway is halved) and effectively enable evacuation guidance for people or firefighting and rescue operations.

In order to achieve the above object, the present invention provides fluid curtain spouts in the ceiling or floor at the center or both sides of an indoor passageway so as to form a fluid curtain from the ceiling or floor along the center or both sides of the indoor passageway. , and in the event of an emergency such as a fire outbreak, a fluid curtain is formed along the passage within the necessary range, thereby forming a space surrounding the place where the fire occurs,
This fluid curtain blocks and confines fire and smoke, and also allows humans, animals, etc. to pass through, making it easier for them to escape.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is a plan view showing stores and passageways in underground malls, etc., and piping for fluid delivery pipes for fluid curtains, Figure 2 is a piping diagram of the ceiling of the passageway, and Figure 3 is a cross-sectional view of the passageway. Also, FIG. 4 is a plan view of another embodiment in a department store or the like.

Reference numeral 1 denotes a fluid delivery pipe for a fluid curtain installed on the ceiling of a passageway 2, and the delivery pipe 1 is disposed over all passageways 2 indoors in an underground mall, etc., and is installed at the intersection of the passageways. It is connected via a check valve 3 to a fluid jet pipe 4 for a fluid curtain. That is, the fluid ejection pipe 4 is disposed between the check valves provided on the intersection of the passages, and in this embodiment, the fluid ejection pipe 4 is disposed directly below the delivery pipe 1 arranged in the attic space 5 and parallel to the delivery pipe 1. It is arranged as follows. 6 is a ceiling plate above the passage.

Further, a discharge port of a fluid compressor 8 driven by an emergency power source 7 is connected to one end of the delivery pipe 1.
In the case of air, the intake port of the fluid compressor 8 is opened to the outdoors so that fresh air can be taken in from the outdoors. In this case, the outdoor intake port of the fluid compressor 8 should preferably be located at a low location close to the ground, avoiding locations near the air conditioning duct opening or exhaust gas outlet of a building or the like. In the case of liquid, an inlet is opened in a liquid storage tank provided in advance. Even though it is not called an underground mall, living spaces inside buildings always face passageways or are indirectly connected to passageways, and indoor living spaces are therefore surrounded by walls that are not directly adjacent to passageways or living spaces. This means that Reference numeral 9 indicates a living space unit, for example, a store, within one living space group 10, and 11 indicates a wall that is not directly adjacent to the living space group.

It is assumed that a fire breaks out from store 9 in such an underground mall. At the same time as a fire occurs, the emergency button is pressed, and in conjunction with this, the emergency power source 7 is activated, thereby driving the fluid compressor 8, and the fluid compressor 8 is sent to the delivery pipe 1 outdoors or to a liquid storage tank. More fluid is sucked and pumped.

On the other hand, the check valve 3 at the intersection of the delivery pipes 1 is automatically or artificially operated, and the passage 2A surrounding the indoor living space group 10 to which the fire store 9 belongs is based on automatic analysis of the source of the emergency sign or human judgment. ，
Check valves 3A, 3B, 3C, 3D, 3E, 3 are installed so that a fluid curtain can be formed at 2B and 2C.
F is activated and the compressed fluid is transferred to the fluid compressor 8 in the direction of the arrow.
From the delivery pipe 1F, 1E, 1D, 1C, 1B, 1A
to be pumped to. In other words, the capacity of the fluid compressor 8 can be reduced by controlling the operation of the check valve 3 to send the compressed fluid to the vicinity of the fire site over the shortest distance, and by suppressing wasteful delivery to other unnecessary delivery pipes. I can do it.

In addition, an evacuation exit to the inside of the building or the outside of the underground mall is provided near the machine room where the fluid compressor 8 is installed, and the check valve 3 located at the intersection is provided with an evacuation exit.
By providing a sign light 12 that is linked to its operation, evacuees from the fire residential space group 10 can be directed to the delivery pipes 1A, 1B, 1C, 1
It is possible to smoothly guide people outside along D, 1E, and 1F without getting lost, and conversely, it is possible to direct firefighting or rescue workers to the fire scene in the shortest possible distance.

Now, from the fluid compressor 8, the delivery pipes 1A, 1B, 1
The fluid sent to C is checked by check valve 3A,
Fluid ejection pipes 4A, 4B, 4 from 3B, 3C, 3D
C, and is ejected from the ejection port 13 opened in the fluid ejection pipe 4, forming a fluid curtain 14.

Thus, the fluid curtain 14 connects the fluid ejection pipes 4A,
4B, 4C, the living space group 10 including the store 9 where the fire occurred is surrounded by a fluid curtain 14 and wall 11 formed in the center of the surrounding passages 2A, 2B, 2C, and the store 9 where the fire occurred The flames and smoke are trapped inside, and the person chased by the fire and smoke easily escapes the fluid curtain 14 and uses the half of the passageway 2 on the opposite side of the living space group 10 to escape to other places. It is easy to escape to the outside through the passage.

As shown in FIG. 3, a suction pipe 16 having a suction port 15 is disposed under the floor in parallel with and opposite to the fluid jet pipe 4, and the check valve 3 is interlocked with the fluid spouted from the jet port 13. By suctioning from the suction port 15, diffusion of the fluid curtain 14 is prevented,
The curtain effect can be strengthened, and the promotion of a fire due to air flow within the residential space group 10 where a fire has occurred can be blocked. 17 is the floor surface 18 of passage 2
With the cover plate for the suction pipe 16 provided at the top, the concave hole for the suction pipe 16 is covered along the floor surface 18 during normal times, and the structure is such that it opens in conjunction with the check valve 3 only in an emergency. good.

Furthermore, in department stores and the like, as shown in FIG. 4, generally there are no partitioned living space units, and the aisles 2 are set within one large space. In such a case, fluid jet pipes 4 are arranged on the ceiling or floor of the setting passage 2 so that a fluid curtain can be formed at both ends thereof, and check valves 3G, 3H, 3J, 3K operation control, in an emergency, compressed fluid is effectively sent to the fluid ejection pipes 4G, 4H, 4J, and 4K in the passage around the fire outbreak space 19, and the fire outbreak space 19 is sealed off with a fluid curtain.
Containing fire smoke therein, the fire outbreak space 1
By allowing people inside 9 to escape outside the fluid curtain and protecting evacuation exits such as the stairs 20 from fire and smoke,
All the people inside the building can be safely evacuated outside the building.

As described above, the present invention is capable of containing fire and smoke in an emergency such as a fire outbreak in a fire outbreak space surrounded by a fire outbreak residential space group or a passageway, and at the same time allowing people in the fire outbreak space to easily escape from the fire smoke. At the same time, it is possible to protect people in the surrounding space from toxic gases and smoke.

In addition, fire smoke and toxic gases can be contained within one area, making fire extinguishing and rescue operations easier, and when air is used as the fluid, fresh air is pumped in from outside, making it easier for evacuees to escape. Or it can save firefighting and rescue workers from oxygen starvation.

As described above, the present invention completely surrounds the place where a fire occurs with a fluid curtain to prevent the spread of fire to other areas, and the air in the fluid curtain can save evacuees, extinguishers, and rescuers from oxygen starvation. It is the purpose and the effect. Furthermore, an important effect of the present invention is that since a fluid curtain is formed along the indoor passageway to isolate the place where a fire occurs, it is possible to walk freely in the passageway space separated by the fluid curtain. You can run away with it, or you can digest it there. In other words, the fluid curtain is only installed along the indoor passage,
Furthermore, by isolating the area where the fire occurred, it has the tremendous effect of preventing the spread of the fire and allowing people to pass freely through the passage. In addition, when it comes to isolating a fire outbreak location, it is possible to do so freely and easily by simply operating the fluid delivery pipe valve that communicates with the fluid ejection pipe provided along the indoor passage.

[Brief explanation of drawings]

Figure 1 is a plan view showing stores, passageways, and piping for fluid curtain delivery pipes in underground malls, etc., Figure 2 is a piping diagram of the ceiling of the passageway, and Figure 3 is a cross-sectional view of the passageway. 4 is a plan view of another embodiment in a department store or the like. 1... Delivery pipe, 2... Passage, 3... Check valve, 7... Power source, 8... Air compressor, 9...
Store, 10... Fire outbreak residential space group, 14... Fluid curtain.

Claims (1)

[Claims] 1 Along the indoor passageway, in order to form a fluid curtain, a fluid ejection pipe with a fluid outlet or inlet for the fluid curtain is installed on the ceiling or floor of the indoor passageway to form a fluid curtain. When it becomes necessary to shut off the fire, by operating the valve of the fluid delivery pipe that communicates with the fluid jet pipe installed along the indoor walkway, the fire can be isolated along the indoor walkway where a passage space is created by a fluid curtain, in order to isolate the location of the fire. Ivy fluid curtain device.