JP2003111859A - Fire/smoke protection zone formation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fully satisfy fire/smoke protection and heat insulation performance when fire/smoke protection zones are formed using a blocking member or blocking members. SOLUTION: Horizontally moving panels are drawn out into a building to partition space inside the building and form a plurality of zones inside the building. When the space inside the building is partitioned by the panels, clearance between each panel and the building is very likely to be poor in smoke protection performance, so a relatively small amount of water, e.g. water particles, is sprayed to the clearance. Since the entire panels are very likely to be poor in fire protection and heat insulation performance, a relatively small amount of cooling water (spray of water particles) is supplied to the panels to thereby enhance each performance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-like or shutter-like fireproof curtain for a space such as a passage or an opening in a building in order to prevent the spread of fire or the spread of smoke inside a building such as a building. The present invention relates to a fire and smoke prevention compartment forming system that forms a fire and smoke prevention compartment by partitioning with a shielding member such as a movable panel.

[0002]

2. Description of the Related Art Generally, a passage or the like inside a building having a large floor area has a sheet-like or shutter-like shape that automatically closes at the same time as the fire breaks out to prevent the spread of fire and the spread of smoke. A fire / smoke-proof compartment forming system that operates to form a three-dimensionally enclosed space, that is, a fire-proof / smoke-proof compartment together with columns, walls, floors, etc., using a shielding member such as a fire-proof curtain is provided.

FIGS. 1 and 2 are views showing the schematic construction of the fire and smoke prevention compartment forming system. FIG. 1 is a side view of the fire and smoke prevention compartment forming system, and FIG. It is the figure seen from the front side. The shielding device used in the fire and smoke prevention compartment forming system of FIG. 1 is a fire protection curtain device. The fireproof curtain device is basically a bracket 11,
12, a winding shaft 13, and a slat curtain 14. Note that, in FIG. 2, two fire protection curtain devices having the same configuration are provided adjacent to each other, and one of them will be described. Other than this, the fire curtain device
Since it is conventionally known to have components such as an automatic closing device, the details thereof will be omitted. Bracket 11,
12 is attached to the side surface (front surface side in FIG. 2) of the beam 24 formed on the upper slab 23 side between the pillar 21 and the pillar (not shown) in the building. The winding shaft 13 is
It is rotatably mounted between the brackets 11 and 12. The slat curtain 14 is attached to the winding shaft 13, and the slat curtain 14 is lowered by an automatic closing device (not shown).

A lintel 26 is provided on both sides of a slit-shaped opening formed in a ceiling 25 that serves as an entrance / exit of the slat curtains 14 and 14a. In addition, a guide rail 15 which is an intermediate pillar that serves as a guide for the slat curtain 14 is provided on the side surface of the pillar 21, and the slat curtain 14 is provided between the ceiling 25 and the slab 20 and adjacent to it. Guide rail 1 for guiding the slat curtain 14a
6 is provided. The slat curtain 14 is configured to ascend and descend along the guide rails 15 and 16 via the lintel 26. The state in which the slat curtain 14 is wound around the winding shaft 13 is a normal state. In the normal state, the lowermost seat plate of the slat curtain 14 is located at substantially the same height as the lintel 26, and when a fire occurs, the fire protection curtain device uses the smoke sensor (or heat sensor) 27, In response to the signal from 28, the slat curtain 14 is automatically lowered to close the opening space formed by the pillar 21, the ceiling 25, and the slab 20. In addition,
The guide rail 16 is not shown in FIG. 1, and the ceiling 25 is shown by a dotted line in FIG. 1 shows a fully closed state of the slat curtain 14, and FIG. 2 shows a semi-closed state.

[0005]

Conventionally, as shown in FIG. 1 and FIG.
As shown in Fig. 1, since the fireproof and smokeproof compartment is formed by using the fireproof curtain device, when flammable substances are present on both sides of the slat curtain 14 of the fireproof curtain device as shown in Fig. 1, the flammable material on the fire side is combusted. If there is a large amount of material, the amount of heat generated by combustible material is large, or if the combustible material burns for a long time, the radiant heat increases and the temperature on the non-fire side of the slat curtain rises. As a result, flammable materials on the non-fire side may spread. Further, if a person is present on the non-fire side and comes into contact with the slat curtain or stays beside the slat curtain, there is a risk that it may be damaged by burns or the like. Further, in the conventional fireproof curtain device, the slat curtain 14 shields the opening to perform fireproofing, smokeproofing, and heat shielding. However, the entire curtaining device does not necessarily have the same fireproofing, smokeproofing, and heat shielding performances. May not have. For example, a slight gap may occur near the lintel 26 between the slat curtain 14 and the ceiling 25 or near the slat curtain 14 and the guide rail 16. Further, when the slat curtain is provided with a door (including a slit), a slight gap may occur at the installation location.

Further, in the case of a shielding device other than the fireproof curtain device, the fireproofing, smokeproofing and heat shielding performances may not be sufficiently satisfied in the following points. For example, some gaps will be created at locations where fireproof screens are not sewn but simply overlap (including cases where they are easily joined with fasteners or easily sewn with flame-retardant threads). It is possible. In the case of a movable guide rail type shutter device, a slight gap may occur in the portion of the guide rail that is adjacently engaged, or in the guide rail itself. When the shielding member is made of different materials such as cloth, plastic, and metal, for example, when the cloth shutter and the steel shutter are combined and configured, or when the materials are mixed in one shutter, Depending on their materials, the fireproof, smokeproof, and heat shield properties may not be constant. Further, when the shielding member has an opening large enough for a person to pass through, a gap may occur around the opening. Further, the open portion (whether a person passes or not) until the shielding member is fully closed is a weak portion in terms of fireproof, smokeproof, and heat shield performances. As described above, when the opening is shielded by one or a plurality of shielding members to perform fire prevention, smoke prevention, and heat shielding, conventionally, it is not always necessary to make the entire shielding member uniformly exert its performance. It was sometimes difficult.

An object of the present invention is to provide a fire / smoke-proof compartment forming system capable of further improving fire-proof, smoke-proof, and heat-shielding performance when a fire-proof / smoke-proof compartment is formed by using one or a plurality of shielding members. To provide.

[0008]

According to a first aspect of the present invention, there is provided a fire and smoke prevention compartment forming system in which a plurality of compartments are formed in the building by extending a shielding member into the building to partition a space in the building. When the space between the forming means and the building is partitioned by the shielding member, at least one performance of fire prevention, smoke prevention and heat shielding is relatively small in a portion lower than other portions of the compartment forming means. And a first supply means for spray-supplying the water. There are also cases where the shielding member for fire protection is extended horizontally or raised, or like a fire curtain, it is installed at the top of the building and the fire curtain descends via a lintel. . By thus extending the shielding member into the building, the space inside the building is partitioned and a plurality of sections are formed. These sections are often separated by the shielding member and the building itself, but depending on the location where the shielding member is installed, a slight gap may occur, and depending on the characteristics of the shielding member, fire, smoke, and It is possible that the thermal performances are not constant. In addition, an open portion (whether a person can pass or not) until the shielding member is fully closed may have a weak portion in terms of fireproof, smokeproof, and heat shield performances.
Therefore, by spraying relatively small amount of water such as water mist, for example, water particles having a smaller particle size than water such as a sprinkler, by using the first supply means, by focusing on such a portion, At least one of the weak points of each performance is supplemented. For example, when there is a gap between the shielding member and the building, water particles are sprayed onto the portion from the non-fire side to prevent smoke from entering and improve the smoke prevention performance. Further, by spraying water particles on the shielding member, heating of that portion is prevented, and the performance of fire and heat insulation is improved. In addition to these, spraying water particles can improve the performance of fire protection, smoke protection, and heat insulation. Although it is preferable to spray water mist or the like on the gap, a water film may be formed in the gap by flowing a small amount of water. For example, in a relatively narrow gap part of the slit or suture part of low performance, a water film can be formed by flowing a small amount of water to the part, so effective fire prevention by the water film, It becomes possible to prevent smoke and heat. In addition, as the weak portions in terms of fireproof, smokeproof, and heat shield performance, for example, the following may be considered. There are some gaps that occur in places where fireproof screens are not sewn but simply overlap (including cases where they are easily joined with fasteners or easily sewn with flame-retardant threads). Applicable In the case of a movable guide rail type shutter device, the portion of the guide rail that is adjacently engaged, or a slight gap portion that occurs in the guide rail itself is applicable. When the shielding member is made of different materials such as cloth, plastic, and metal, for example, when the cloth shutter and the steel shutter are combined and configured, when the materials are mixed in one shutter, Depending on their materials, the parts where the fireproof, smokeproof, and heat-shielding performances are not constant correspond. When the shielding member has an opening large enough for a person to pass through, a gap portion or the like formed around the opening corresponds to the opening. An open portion (whether a person can pass or not) until the shielding member is fully closed corresponds to a weak portion in terms of fireproof, smokeproof, and heat shield performances. In addition to these, when the opening is shielded by one or more shielding members to perform fire protection, smoke prevention, and heat shielding, it is not always the case that it is difficult for the entire shielding member to exert its performance evenly. . In the specification of the present application, the term fire and smoke prevention compartment forming system includes a case for fire prevention, a case for smoke prevention, and a case for both fire and smoke prevention.

A fire and smoke prevention compartment forming system according to a second aspect is the first aspect, wherein the first supply means has a relatively small amount from the non-fire side with respect to the gap between the shielding member and the building. It has a first supply means for supplying the water. This is for supplying a relatively small amount of water to the gap between the shielding member and the building, for example, spraying water particles to prevent smoke from entering there.

A fireproof and smokeproof compartment forming system according to claim 3 is the system according to claim 1 or 2, wherein the first supply means is
It has a second supply means for supplying a relatively small amount of water for cooling the shielding member. This cools the shielding member itself, suppresses the temperature rise of the shielding member, prevents flames,
It is designed to improve the heat shield effect. This has the effect of making it difficult for fire to spread through the shielding member. In this case, a relatively small amount of water may be supplied from either the fire side or the non-fire side on either side of the fire side or the non-fire side, for example, water particles may be sprayed.

According to a fourth aspect of the present invention, there is provided the fire and smoke prevention compartment forming system according to the third aspect, wherein the second supply means supplies or does not supply the relatively small amount of water according to the temperature of the shielding member. It is controlled. This may be because the location of the fire may be close to or far from the shielding member, so seeing the degree of temperature rise of the shielding member, you can see whether the water supply is relatively small or not, such as water. The atomization and non-atomization of the particles were controlled. As a result, an appropriate amount of water can be supplied, and the amount of water can be reduced without wasteful supply.

According to a fifth aspect of the fire and smoke prevention compartment forming system, in the first, second, third or fourth aspect, the compartment forming means extends the interior of the building by feeding out one or a plurality of panel members. To form a predetermined section. In this structure, the partition forming means is composed of a panel member that is drawn out by a horizontal pulling method. In the case of a plurality of panel members, by providing unevenness at the contact end portions of adjacent panels, that portion can be sealed and no gap can be generated. Therefore, since a gap is formed between the panel member and the building, it is sufficient to supply a relatively small amount of water mainly to this portion.

According to a sixth aspect of the fire and smoke prevention section forming system, in the first aspect, the shielding member is provided with an evacuation port capable of evacuating to another section. In this, the panel member is provided with an evacuation opening so that the sections can be freely moved even after the sections are formed.

A fire and smoke prevention compartment forming system according to a seventh aspect is the system according to the first, second, third, fourth, fifth or sixth aspect, wherein the space in the building is partitioned by the shielding member according to the occurrence of a fire. In this case, the third supply means for supplying a relatively small amount of water into the non-fire side section among the plurality of sections is provided. This is to supply a relatively small amount of water, for example, spray water particles, to all the compartments other than the non-fire side, that is, the compartment where the fire is generated, after the compartments are formed by the compartment forming means. It is intended to prevent the ingress of smoke from the fire side by increasing the air pressure in the non-fire side compartment with a relatively small amount of water supply pressure (spray pressure in the case of water particles).

A fire and smoke prevention compartment forming system according to an eighth aspect of the present invention is a compartment forming means for forming a plurality of compartments in the building by extending a shielding member into the building to partition a space in the building, and a fire prevention section. When the space in the building is partitioned by the shielding member according to the occurrence, it is provided with a supply means for supplying a relatively small amount of water by spraying into the non-fire side compartment of the plurality of compartments. is there. This is to provide only the third supply means described in claim 7 to prevent smoke from entering from the fire side after the formation of the compartment.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a fire and smoke prevention compartment forming system according to the present invention will be described below with reference to the accompanying drawings. FIG. 3 and FIG. 4 are diagrams showing a schematic configuration and an operation example of this fire and smoke proof compartment forming system. Figure 3
FIG. 4 is a diagram showing a state before and immediately after a fire occurs, and FIG. 4 is a diagram showing a state after a fire occurs and after a fire and smoke prevention section is formed.

The fire and smoke prevention compartment forming system according to the present embodiment, as shown in the figure, is composed of a plurality of panels in which a shielding member is housed in a housing such as a door pocket. It moves and operates to close the opening. This panel has, for example, a thickness of 30 to
It is about 70 mm, and has a hollow structure or a solid structure. Normally, a fireproof shutter device is used to form a fireproof / smokeproof compartment in a building, but from the following points, in this embodiment, the panel is used to form a fireproof / smokeproof compartment. In the case of an iron fireproof shutter device, the heat shielding performance is slightly inferior, so if the shutter curtain part is heated during a fire, heat may be transferred from that part to the non-fire side and spread and spread. . Further, since the width of one opening of the fire prevention shutter device is limited, if the width of the opening in the building is large, a plurality of fire prevention shutter devices are installed there, and the guide rails that are the middle pillars are accordingly installed. Is also installed, and is not preferable from the viewpoint of design and arrangement of articles (commodities etc.) during normal times such as non-fire. Further, when a plurality of fireproof shutter devices are used to divide an area, smoke may enter the outside of the area and the evacuee may be covered with the smoke. Therefore, in this embodiment, since the heat shielding performance is high, it is not necessary to install a center pillar or the like, and even when a plurality of shielding members are used, it is possible to more effectively prevent smoke from entering the outside of the compartment. It was decided to use the panel to form a fire and smoke control section.

In FIG. 3, a plurality of panels 31-36.
Are stored in the door pockets 37 and 38. Figure 3
In (A), the panels 31 to 36 are arranged on the walls on both sides of the opening 30 and the state immediately before the start of closing is shown. A plurality of mist spray nozzles 41 to 44 are installed on both side surfaces and an upper surface of the opening 30. These spray nozzles 4
The water particles sprayed from 1 to 44 have a particle size of about 40 to 400.
It is a micron water mist. In the present application, the particle size refers to the Sauter mean particle size. The Sauter average particle size will be described. When the sampled spray particle group is measured and the number of particles having a diameter xi (x1-Δx to x1 + Δx) is Δni, the total volume of the spray is Σxi ³ Δ
and the total surface area is proportional to Σxi ² Δni.
The average particle size based on the surface area is represented by a value (Σxi ³ Δni / Σxi ² Δni) obtained by dividing the total volume of spray by the total surface area.

The spray nozzle 41 is provided along the left side surface of the opening 30 and sprays water particles toward the gap formed between the panel 33 and the wall surface of the building. Spray nozzle 4
2 is provided along the right side surface of the opening, and the panel 36
Water particles are sprayed toward the gap formed between the building and the building wall. The spray nozzle 43 is provided along the side surface of the upper surface of the opening 30, and sprays water particles toward a gap formed between each of the panels 31 to 36 and the upper side of the wall surface of the building. The spray nozzle 44 is also provided along the side surface of the upper surface of the opening 30. However, unlike the spray nozzle 43, the spray nozzle 44 does not spray water particles toward the gap, but the opening 30
Spraying water particles onto the panels 31-36 that close the
In addition, water particles are sprayed onto the opening 30 so as to form a water mist curtain for fire and smoke prevention. In the figure, the spray nozzles 41 to 4 existing on the front side of the opening 30 are shown.
Although only 4 is shown, the same thing exists on the back side of the opening 30. Among the panels 31 to 36, adjacent panels have concavities and convexities at their contact ends, and are hermetically sealed.
Since the structure does not generate a gap, smoke and the like are less likely to pass between the panels 31 to 36.
Therefore, the spray nozzles 41 to 43 are arranged around the plurality of openings 30 as shown, that is, the panel groups 31 to 36 after closing.
Is provided so as to entirely surround the panel, and is not provided between the panels. In the figure, the panels 31 to 36 are shown.
Although not provided on the lower surface side of, it may be provided. However, since the smoke tries to enter through the gap above the bottom side, even the one as shown in the figure is sufficiently effective in blocking the smoke.

In FIG. 3B, the large opening 3 in the building
0 is closed by these six panels 31-36. When the smoke detector or the heat detector detects a fire after the fire, these panels 31 to 36 are opened from the door pockets 37, 38 to the opening 30 as shown in FIG. 3B.
The opening 30 is closed by performing a closing operation along an upper rail and / or a lower rail or the like (not shown) installed in the vicinity of the. The power of the panels 31 to 36 is started by the power of a counter weight, a motor, or the like, or the weight of the panel due to the inclination of the moving rail. In addition, the number of panels is adjusted according to the width of the opening 30.
The number can be increased or decreased, and a large opening can be freely accommodated. Further, the panel has a structure in which division, connection and the like can be freely combined.

In FIG. 4 (A), the panel 31 is shown after the fire.
After 36 to 36 close the opening 30 to form a predetermined section, the spray nozzles 41 to 43 spray water particles into the gaps between the panels 31 to 36 and the wall surface, and the spray pressure causes a fire. It prevents smoke from entering the non-fire side and also absorbs smoke by mist particles to prevent smoke diffusion.

In FIG. 4 (B), in addition to the spray nozzles 41 to 43, in response to an operation of a timer, an instruction signal from the disaster prevention center, or a detection signal from a heat sensor, etc. 44 sprays water particles over the entire surfaces of the panels 31 to 36. As a result, it is possible to prevent the panels 31 to 36 from being heated with a small amount of water and reduce the possibility of fire spreading from the fire side to the non-fire side until the end of the fire.

In FIG. 4 (C), the panels 32 and 35 are provided with an escape door that serves as an emergency evacuation port, so that it is possible to evacuate to other sections. In this case, when the escape door is opened, the possibility of smoke entering from the escape door can be extremely reduced by the action of the water mist curtain of the water particles sprayed from the spray nozzle 44.

In FIG. 4, once the water particles are sprayed from the spray nozzle 44, the state is continuously performed. However, as shown in FIG. 5, the panels 31 to 36 are provided.
The temperature of the fire side or the non-fire side may be monitored, and the spray state of water particles may be controlled according to the temperature change.
FIG. 5 is a diagram showing the relationship between the temperature change of the shielding member and the spray state of the spray nozzle. As is clear from the figure, panel 31
The fire side surface temperature 51 of 36 reaches the limit temperature of the thermometer instantly, and the limit temperature is maintained until the fire is extinguished. On the other hand, the non-fire side surface temperature of the panels 31 to 36 is 5
In No. 2, the temperature rises with a certain delay time with respect to the fire side surface temperature 51. When the non-fire side surface temperature 52 reaches the preset spray start temperature, spraying of water particles from the spray nozzle 44 starts at that point. by this,
The non-fire side surface temperature 52 gradually decreases. When the non-fire side surface temperature 52 decreases and reaches a preset spray stop temperature, spraying of water particles from the spray nozzle 44 stops at that point. When the spray of the spray nozzle 44 is stopped,
The surface temperature 52 on the non-fire side gradually starts to rise again, reaches the spray start temperature again, and the spray nozzle 44 starts spraying.
Hereinafter, the spray-stop operation is repeatedly executed until the fire is extinguished.

FIG. 6 is a flow chart showing an example of the operation of the fire and smoke prevention compartment forming system of FIGS. 3 and 4. First, when a fire occurs, the smoke detector operates (step S6).
0). Then, the smoke detection signal from the smoke detector is transmitted to the disaster prevention center (step S61). When smoke is detected, water particles may be sprayed from the spray nozzle 44 to form a smoke blocking water mist curtain (step S62). This step is optional and may be omitted. Release the stopper such as the electromagnetic release according to the instruction from the disaster prevention center (step S
63). When the electromagnetic release is released, operation of the power source is started to move the panels 31 to 36, which are shielding members (step S64). The panels 31 to 36, which are shielding members, start the closing operation by the operation of power (step S65). The closing operation of the panels 31 to 36, which are shielding members, is completed (step S66). A completion signal is output when the closing operation of the shielding member is completed, or a predetermined time elapsed signal is output from a timer that has counted a predetermined time after the closing operation of the shielding member is started (step S6).
7). By inputting the completion signal or the signal for elapse of a predetermined time, the smoke blocking mist, that is, the spray nozzles 41 to 43 for the gap smoke blocking section, starts spraying water particles (step S68). The heat detector signal is detected from the heat detector (step S69), and the heat detector signal is transmitted to the disaster prevention center and others (step S6A). In accordance with an instruction from the disaster prevention center, the heat shielding spray nozzle 44 starts spraying water particles (step S6B). If you want to maintain this state until the fire is extinguished, end as it is. When performing the spray-stop control as shown in FIG. 5, the following step S6C is performed.
Continue below. By spraying the water particles from the spray nozzle 44, as shown in FIG.
The non-fire side surface temperature 52 of 6 falls (step S6)
C). Since the non-fire side surface temperature 52 of the panels 31 to 36 has reached the spray stop temperature, the spray operation of the spray nozzle 44 is stopped (step S6D). By stopping the spraying operation,
Since the non-fire side surface temperature 52 gradually increases this time as shown in FIG. 5, the non-fire side surface temperature 52 is monitored (step S6E). It is determined whether or not the surface temperature on the non-fire side of the panels 31 to 36 has risen and has reached the spray start temperature. If the spray start temperature has been reached (yes), the process returns to step S6B to start spraying and not to reach (no). If the fire is extinguished, it ends.

FIGS. 7 and 8 are plan views showing some examples of how the fire and smoke prevention section forming system shown in FIGS. 3 and 4 is arranged in a building space. . In FIG. 7 (A), the fire and smoke prevention compartment forming system shown in FIG. 3 and FIG. 4 is arranged in the middle part of the rectangular building space surrounded by the outer wall, and thereby the building space is divided into two parts left and right. The case is shown in which two large fire and smoke compartments 71, 72 are formed. In FIG. 7 (B), a vertical hole section such as an escalator exists in the central portion of a square-shaped building space surrounded by outer walls, and the vertical window shown in FIGS. 3 and 4 is used as the vertical hole section as the central portion. A case is shown in which a smoke-proof section forming system is arranged, and thereby four fire-blocking smoke-proof sections 73 to 76 are formed in the building space in the vertical and horizontal directions. That is, the spray nozzles 41 to 44 as shown in FIGS. 3 and 4 are provided on both surfaces of the panel, which is a shielding member provided in the building.
Is installed, and water particles are sprayed from the spray nozzle on the non-fire side by a smoke sensor or heat sensor to ensure fire, smoke, and heat shield performance. In addition, the section including the stairs forms a separate fire and smoke prevention section.

In FIG. 8A, spray nozzles for spraying water particles are arranged on the entire surface of the fire and smokeproof compartments 73 to 76 shown in FIG. Water particles are sprayed from all spray nozzles in the (fire compartment), and the spray pressure of the water particles increases the overall atmospheric pressure in the non-fire compartment to prevent smoke from entering the non-fire compartment from the fire compartment. It is intended to prevent and adsorb smoke by water particles even if smoke enters. For example, when a fire occurs in the fire and smoke prevention section 73, water particles are sprayed from the spray nozzles arranged in the other fire and smoke prevention sections 74 to 76.

FIG. 8 (B) is an enlarged view of a vertical hole section such as an escalator in the central portion of FIG. 8 (A).
Here, a case is shown in which a panel that is a shielding member is arranged so as to surround this vertical hole section, and a spray nozzle is provided inside it. By arranging the spray nozzle inside the pit section in this way, it is possible to prevent smoke from entering the pit section and to adsorb the smoke by water particles. Although the drawing shows the case where the spray nozzle is provided only on the inner side, it is needless to say that the spray nozzle may be provided on the outer side to prevent the ingress of smoke that has risen in the vertical hole section. Yes.

As described above, according to the first embodiment, the shielding member (panel) serving as the fire and smoke prevention wall is made movable,
Normally, by storing it in a door pocket or the like, a large space area can be secured when using the building. Also, by spraying water particles on the shielding member, heat insulation is secured,
It is possible to prevent the spread of fire from the area where the fire is occurring to other areas. Further, by spraying water particles into the gap between the shielding member and the building, it becomes possible to secure the smoke shielding property and prevent the damage caused by smoke as much as possible. ,
By applying the above-described embodiment to a place where a smoke-proof shutter device or the like is used, it becomes possible to cope with a large opening of 5 m or more. By using water particles having a small particle size, it is possible to reduce the amount of water used and minimize the damage to the product etc. due to water. In addition, by controlling the spraying of water particles according to the temperature of the shielding member, it is possible to reduce the amount of water used and further damage caused by water. Further, since the water particles are sprayed to cool the portion, the heat shielding performance of the panel as the shielding member can be assisted, and the weight of the panel itself can be reduced, resulting in cost reduction. Will also be advantageous. Further, in the above-described embodiment, the spray nozzle 43 is used for the smoke shielding gap, and the spray nozzle 44 is used for the shielding member cooling as different applications, but the gap spraying and the shielding member cooling are performed by one type of nozzle. May be sprayed. For example, the spray angle of the water particles from the spray nozzle may be increased so that part of the spray particle serves as a smoke-shielding gap and the rest serves as a cooling member for cooling.

FIG. 9 is a diagram showing a schematic configuration and an operation example of the fire and smoke defensive compartment forming system according to the second embodiment. 9, the same components as those in FIGS. 3 and 4 are designated by the same reference numerals. In the embodiment of FIGS. 3 and 4, the spray nozzles 41 to 44 are provided over the entire area of the opening 30.
Is provided, water particles are sprayed from the spray nozzle 44 when smoke is detected to form a water mist curtain for smoke shielding, and the spray nozzles 41 to 43 are sprayed when the openings 30 are shielded by the panels 31 to 36. The case has been described in which water particles are sprayed from the nozzle to the gap portion and further the water particles for cooling the panel are sprayed from the spray nozzle 44 when the surface temperature on the non-fire side of the panel rises. However, when partitioning a building where many evacuees are present, if the large-span opening is shielded at once by using a panel or the like at the same time, there is a possibility that the evacuee may escape and be delayed. Further, if all the panels are closed at the same time, it may be difficult to ensure safety at the panel joint. Therefore, in the second embodiment, the movement of the shielding member is temporarily stopped before the compartment is completely closed, and water particles are sprayed to the small opening formed by the stop to perform fire and smoke prevention. , A safe evacuation passage is secured and the opening is completely closed after a certain period of time, so that the fire and smoke prevention performance and the heat shielding performance are effectively maintained.

In FIG. 9, a plurality of panels 31 to 36 are provided.
Are stored in the door pockets 37 and 38. Figure 9
In (A), the panels 31 to 36 are arranged on the walls on both sides of the opening 30 and the state immediately before the start of closing is shown. A plurality of mist spray nozzles 41 to 4 shown in FIGS. 3 and 4.
A spray nozzle 91 different from that of No. 4 is installed. This spray nozzle 91 is capable of forming a water mist curtain over the opening corresponding to two panels, and the total number thereof is significantly smaller than that of the spray nozzles 44 of FIGS. 3 and 4. There is. The water particles sprayed from the spray nozzle 91 are water mists having a particle size of about 40 to 400 microns. In addition, the spray nozzle 91 is provided on the panel 3
Water particles are also sprayed on 1, 34 and the panels 31, 34
May be cooled. Further, spray nozzles 41 to 43 as shown in FIGS. 3 and 4 may be provided. Although only the spray nozzle 91 existing on the front side of the opening 30 is shown in the drawing, the same kind exists on the back side of the opening 30.

The large opening 30 in the building is intended to be finally closed by these six panels 31-36, but here it is a smoke or heat detector after a fire. When a fire is detected, the panels 31 to 36 are installed along the upper rails and / or the lower rails installed around the opening 30 from the door pockets 37, 38 as shown in FIG. 9 (B). Performs closing operation and gradually opens
0 is closed. When the opening 30 reaches the size of the opening 90 due to the movement of the panels 31 to 36, the panel 31
Movement of ~ 36 is temporarily stopped. Panels 31-36
The stopping operation is performed by a stopper or the like provided on the upper rail and / or the lower rail. Panel 31-
The power of 36 is the power of the counter weight, the motor, etc.
Alternatively, the operation is started by the weight of the panel due to the inclination of the moving rail. Note that the number of panels can be increased or decreased in accordance with the width of the opening 30, and a large opening can be freely accommodated. Further, the panel has a structure in which division, connection and the like can be freely combined.

In FIG. 9C, the panel 31 is shown after the fire.
After 36 to move and the opening 90 is formed between the panels 31 and 34, the spray nozzle 91 sprays water particles, and due to the curtain action of the sprayed water particles, the opening 90 is provided together with the heat shield. Smoke that tries to enter the non-fire side through the is effectively prevented, and smoke is adsorbed and extinguished by mist particles, and diffusion of smoke is prevented. Further, as shown in the figure, since the opening 90 does not have a shielding member such as a panel, the evacuee can freely evacuate through the opening. Further, since the opening 90 is not a diving door as shown in FIG. 4 (C), there is no need to open and close the door, etc., there is no step on the floor, and it is barrier-free. Even such things can be easily evacuated horizontally. Even in the case of the subdoor shown in FIG. 4C, the same horizontal evacuation can be performed by using the subdoor whose portion in contact with the floor is barrier-free.

In FIG. 9D, the time when all evacuees will complete evacuation is set in advance by a timer or the like,
Based on the timer signal output when the evacuation completion time has elapsed, the stopper that stops the movement of the panels 31 to 36 is released, the power source is started, and the panel 31
~ 36 is moved again to completely close opening 90. The closing operation may be restarted in response to an instruction signal from the disaster prevention center or a sensing signal from a heat sensor or the like. Water particles are sprayed from the spray nozzle 91 until the opening 90 is completely closed. Then, when the opening 90 is completely closed, the spray nozzle 9
The spraying operation from 1 is stopped. Further, an escape door as shown in FIG. 4C may be provided so that the evacuation passage can be secured even after the door is closed. Further, the opening 90 may be left until the end of the fire (extinguishing the fire), and water particles may be continuously sprayed from the spray nozzle 91 to the opening 90 as shown in FIG. 9C. In this way, it is possible to secure flameproofness (flameproofing) and smokeproofness (smokeproofing) while holding the opening.

FIG. 10 is a view showing a modification in which the position of the opening formed by the temporary stop positions of the panels 31 to 36 can be arbitrarily set. In FIG. 10 (A),
The case where the opening 100 is located slightly closer to the left side than that of FIG. 9 is shown. FIG. 10B shows a case where the panel is pulled by one side and the opening portion 102 exists at the left end. As described above, the positions of the openings 100 and 102 can be arbitrarily changed according to various factors such as the panel being double-pulled, the panel being single-pulled, and the arrangement of fixtures such as products inside the building. In addition, when the location of the opening is changed, the arrangement of the spray nozzles 101 and 103 is correspondingly changed, or the locations of the spray nozzles 101 and 103 are arranged in advance so that they may be located at any location. You should keep it.

FIG. 11 is a flow chart showing an example of the operation of the fire / smoke-proof section forming system of FIG. First, when a fire occurs, the smoke detector operates to detect the fire (step S110). Then, the smoke detection signal from the smoke detector is transmitted to the disaster prevention center (step S111). The stopper such as the electromagnetic release is released according to the instruction from the disaster prevention center (step S112). The release of the electromagnetic release starts the operation of the power source to move the panels 31 to 36, which are shielding members (step S113). The closing operation of the panels 31 to 36, which are shielding members, is started by the operation of power (step S114). Panels 31 to 36, which are shielding members, are temporarily stopped by a stopper,
The opening 90 is formed (step S115). A stop signal is output at the time when the shielding member is temporarily stopped, or a predetermined time elapse signal (timer signal) is output from a timer that has been measuring a predetermined time from when the closing operation of the shielding member is started until it is temporarily stopped. Output (step S11
6). By inputting a stop signal or a signal for elapse of a predetermined time, the spray nozzle 91 provided on the ceiling portion starts spraying water particles, that is, smoke-shielding mist (step S11).
7). The evacuation time is set in advance by a timer or the like for all evacuees, and after the evacuation completion time, a signal is transmitted from the timer after a predetermined time has elapsed (step S118). By receiving the signal after the elapse of this fixed time, the stopper that stops the movement of the panels 31 to 36 is released (step S119). The closing operation of the panels 31 to 36 is started again by releasing the stopper and starting the power source of the panels 31 to 36 (step S11A). The closing operation of the panels 31 to 36, which are shielding members, is completed (step S11B). A completion signal is output when the closing operation of the shielding member is completed, or a predetermined time elapsed signal is output from a timer that has counted a predetermined time after the closing operation of the shielding member is started. Then, the spraying of water particles from the spray nozzle 91 is stopped (step S11C). This state is maintained until the fire is extinguished (step S11D). The opening 90 is left until the end of the fire (extinguishing the fire).
When continuing to spray the water particles from the spray nozzle 91 to 0, steps S118 to S11D may be omitted. Further, as in step S62 of FIG. 6, when smoke is detected, that is, between steps S111 and S112, water particles are sprayed from the spray nozzle 91 to form a smoke-shielding water mist curtain. You may In this case, in order to form the water mist curtain over the entire opening 30 using the spray nozzle 91, it is desirable to provide the spray nozzle 91 over the entire opening 30. Needless to say, the start timing of spraying is not limited to the above-mentioned embodiment and can be set arbitrarily.

FIG. 12 is a diagram showing some examples of how the fire and smoke prevention section forming system shown in FIG. 9 is arranged in a building space. In FIG. 12 (A),
In the middle part of the rectangular building space surrounded by the outer wall, the fire and smoke prevention compartment forming system shown in FIG. 9 is arranged, and thereby two large fire and smoke prevention compartments 121 and 122 are divided into left and right in the building space. The case where it is formed is shown. In this way, by using the fire and smoke prevention section forming system of FIG. 9 for the area section of a large space, it is possible to freely pass through the openings formed between the panels other than the edge evacuation stairs direction and evacuate to the non-fire space. be able to.

In FIG. 12B, the fire and smoke prevention section shown in FIG. 9 is formed in a building space such as a hospital or a nursing home where many evacuees cannot maintain a walking speed equivalent to that of a normal person in an emergency. A case is shown in which the system is arranged so that the fireproof and smokeproof compartments 123 and 124 which are divided into two on the left and right are formed in the building space. The one shown in FIG. 12B has a plurality of patient rooms at the upper and lower ends in the drawing, and has a core part such as a nurse center so as to be sandwiched between the patient rooms. A spray nozzle 91 as shown in FIG. 9 is arranged on both sides of a panel which is a shielding member provided in the building, and a smoke sensor or a heat sensor sprays water particles from the spray nozzle on the non-fire side to prevent fire. Smokeproof and heat shield performance is secured. As a result, evacuees such as wheelchairs can evacuate horizontally without any obstacle.

As described above, according to the second embodiment, a large space can be partitioned and an evacuation route can be secured. Since the mist spraying time can be shortened and the spraying range can be reduced, it is possible to reduce the amount of water used as compared with the case where mist is constantly sprayed. Since the large shield member is temporarily stopped without being closed at once, it is possible to inform the evacuee of the closing operation of the shield member and maintain the safety at the time of closing. A horizontal evacuation route can be secured, and the heat insulation of the shielding member can ensure the safety of the evacuees. Since the temporarily stopped opening does not have a step such as a partition on the floor surface, evacuation by a wheelchair or the like can be performed smoothly and safely. Since the opening width at the time of temporary stop can be adjusted arbitrarily, even if there are many people at the time of evacuation, it is possible to install a fire and smoke prevention section formation system regardless of the building use and number of people.

13 and 14, as shown in FIGS. 9 and 10, an opening is left until the end of the fire (extinguishing the fire), and water particles are continuously sprayed from the spray nozzle to this opening to form a fire and smoke prevention section. It is a figure which shows the modification of a system. FIG.
FIG. 14 is a view of the fire and smoke prevention compartment forming system when the opening 102 is viewed from the front, and FIG. 14 is a partial cross-sectional view of the relationship between the spray nozzle and the gas discharge port when viewed from the side. The fire and smoke prevention compartment forming system according to this embodiment is shown in FIG.
This corresponds to the case where the panel as shown in (1) is one-sided pulling and the opening is at the left end. As shown in the figure, the spray nozzles 130 to 1 are installed on the ceiling 25 above and below the opening and above the building.
The gas discharge port 141 and the gas discharge port 142 are provided at positions vertically facing the ceiling 25 and the lower slab 20, respectively. Smoke detector (or heat detector) 27,
28 is provided.

On the lower surface of the ceiling 25, the spray nozzle 13
A gas discharge port 141 is provided between 0 to 134 and the spray nozzles 135 to 139. The gas discharge port 141 is provided with a commutator for rectifying the discharged gas. In the space between the ceiling 25 and the upper slab 23,
A gas introduction duct 143 for introducing the cooling gas to the gas discharge port 141 is provided. The gas outlet 14 is provided on the upper surface of the floor slab 20 and below the gas outlet 141.
Two are provided. The gas outlet 142 is provided with a slit-like gap such as a grating. In the space below the floor slab 20, the gas outlet 14
Gas exhaust dust 1 for exhausting gas introduced into 2
44 are provided. The gas discharge port 141 and the gas discharge port 142 are arranged to face each other in the vertical direction, and serve as an air curtain 146 that blocks the flow of gas such as air from the left fire side to the right non-fire side. Function. Blocking the flow of air also blocks the ingress of smoke. Further, since the gas blown out from the gas discharge port 141 is a cooling gas, it also has a heat shield function of blocking transfer of heat on the fire side to combustible substances on the non-fire side.

Assuming that a fire has occurred and the combustible material 145 is burning, the fire / smoke-preventing compartment forming system responds to a signal from the smoke detector (or heat detector) 27 by turning on the panel which is the shielding member. It is automatically moved so that the large opening becomes a small opening as shown in FIG. Then, the cooling gas passes through the gas introduction duct 143 and the cooling gas is discharged.
The air curtain 146 is blown out from No. 1 to form the air curtain 146.
And the gas whose temperature has risen due to the fire is discharged from the gas outlet 1
The gas is discharged to the outside through the gas discharge duct 144 and the gas discharge duct 144. At the same time, the spray nozzles 130-134 on the fire side
Water particles are sprayed from the water mist curtain 1
47 is formed. As a result, the combustion smoke of the combustible material 145 does not enter the non-fire side compartment on the opposite side through the opening as much as possible, and the influence of the combustion heat of the combustible material 145 does not affect the combustible material on the non-fire side. It becomes difficult to communicate. In addition,
At this time, air is generally used as the cooling gas blown out from the gas discharge port 141, but for example, an inert gas such as carbon dioxide or a halogen gas may be blown out according to the purpose of the room of the building. Good. It should be noted that the inert gas, the halogen gas, or the like may have a structure in which the gas stored in the cylinder of another facility room is supplied through the gas introduction duct 143, or the upper portion of the ceiling 25 and the upper portion. It may be supplied from a cylinder installed under the floor slab 23 or under the slab 20. Also,
To release the gas, use a sensor that detects the gas temperature on the ceiling, pillars,
A control system that is provided on a wall surface or the like and that adjusts the amount of released gas so that the temperature of the exhausted gas becomes a predetermined temperature or lower may be provided.

Water having a predetermined pressure is supplied to the spray nozzles 130 to 139 through water supply pipes 148 and 149. The water supply pipes 148 and 149 spray the water having a predetermined pressure supplied from the city water supply main pipe, etc.
It may be supplied to 30 to 139 or may be pressurized by a pump, and an electromagnetic valve (not shown) or the like is provided on the way. The electromagnetic valve controls on / off of water supply to the spray nozzles 130 to 139 according to a control signal, and the spray amount of water mist can be appropriately adjusted depending on the length of the on time. Further, water stored in a water tank of another facility room may be supplied to the water supply pipes 148 and 149 with a predetermined pressure by a pressurizing pump, or the upper part of the ceiling 25 and the upper slab 23. A water tank may be installed in the lower part of the slab or in the lower part of the slab 20, and the water may be supplied from there. In this way, the spray nozzle 13
Water particles are continuously sprayed from 0 to 139 to form a layer of the water mist curtain 147 on the front surface of the air curtain 146. At this time, the generated water flows out to the outside by using the gas discharge port 142 and the gas introduction duct 144 on the floor as a drain, so that the water does not leak from this fire / smoke-proof section to other sections or downstairs. . Further, the water particles sprayed from the spray nozzles 130 to 139 have a particle size of 40 to 40.
Since it is a water mist of 0 micron, the water particles in the air are easily vaporized, and the vaporization can effectively shield the radiant heat from a fire. In addition, the concentration of oxygen in the fire / smoke-proof compartment decreases due to the vaporization of water particles, which has the function of suppressing the ignition of combustible substances. Regarding the discharge or spray of such inert gas, halogen gas, and water fine particles by water mist, a suitable one according to the type of combustible material placed in the building may be selectively installed. As a result, it is possible to effectively prevent the spread of fire across the fire-prevention section, and it is very effective for people to evacuate because it is not necessary to open or close obstacles or open or close doors.

Next, a modified example of the fire / smoke and smoke compartment forming system shown in FIGS. 13 and 14 will be described with reference to FIGS. 15 to 19 are partial cross-sectional views of the relationship between the spray nozzle and the gas discharge port as viewed from the side. Figure 15
FIG. 3 is a diagram showing a schematic configuration of a fire / smoke-proof / compartment-forming system in which gas discharge ports, that is, air curtains are provided in double. As is clear from the figure, the gas discharge port 15 is sandwiched between the beams 24.
1, 152 are provided, and one gas outlet 15 is provided on the floor slab 20 side so as to face the gas outlets 151, 152.
3 is provided. That is, on the lower surface of the ceiling 25, the spray nozzles 130 to 134 and the spray nozzles 135 to 1
Gas discharge ports 151 and 152 are provided between the gas discharge port 39 and the pressure sensor 39. A commutator for rectifying the discharged gas is provided at each of the gas discharge ports 151 and 152. In the space between the ceiling 25 and the upper slab 23, the gas discharge port 1
Gas introduction duct 15 for introducing cooling gas to 51
4 is also provided, and a gas introduction duct 155 for introducing the cooling gas to the gas discharge port 152 is also provided. The gas discharge port 15 on the upper surface of the floor slab 20
A gas exhaust port 153 is provided below 1,152. The gas outlet 153 is provided with a slit-like gap such as a grating. Gas exhaust dust 156 for exhausting the gas introduced into the gas exhaust port 153 is disposed in the space below the floor slab 20. The gas outlets 151 and 152 and the gas outlet 1
53 are arranged to face each other in the vertical direction, and the gas discharge port 153 has two gas discharge ports 151, 1
The opening has an area corresponding to 52. In addition,
Two gas outlets may be provided respectively corresponding to the gas outlets 151 and 152. As a result, double air curtains 157 and 158 are formed to block the flow of air from the fire side on the left side to the non-fire side on the right side, and smoke ingress can be effectively blocked. . Further, since the gas blown out from the gas discharge ports 151 and 152 is a cooling gas, the heat shielding effect of blocking the heat on the fire side from being transferred to the combustible material on the non-fire side is also doubled. In this way, by doubling the air curtain formed by the cooling gas, the radiant heat from the combustible material 145 is absorbed by the two air curtains 1.
It can be effectively shielded by 57 and 158. Further, since it is not necessary to provide a door for evacuation or the like on the air curtain itself, evacuees can smoothly evacuate. In addition, although the case where water particles are sprayed from the spray nozzles 130 to 134 on the fire side has been described in the embodiments of FIGS. 14 to 19, water particles are sprayed from the spray nozzles 130 to 139 on both the fire side and the non-fire side. May be sprayed.

FIG. 16 is a diagram showing a modification of FIG. In FIG. 16, the same components as those in FIG. 14 are designated by the same reference numerals, and the description thereof will be omitted. FIG.
14 is different from that of FIG. 14 in that the gas discharge port 142 and the gas discharge dust 144 of FIG. 14 are omitted and the gas blown out from the gas discharge port 141 is blown onto the upper surface of the floor slab 20. . That is, in forming the air curtain, a blowing-only system in which only the gas is blown from the gas discharge port 141 is adopted.

FIG. 17 is a diagram showing a modification of FIG. In FIG. 17, the same components as those in FIG. 15 are designated by the same reference numerals, and the description thereof will be omitted. FIG. 17
15 is different from that of FIG. 15 in that the gas discharge port 153 and the gas discharge dust 156 of FIG. 15 are omitted and the gas blown out from the gas discharge ports 151, 152 is blown onto the upper surface of the floor slab 20. Is. That is, in order to form the air curtain as in FIG.
This is a system for exclusive use of blowing only by blowing gas from 1,152.

FIG. 18 is a diagram showing a modification of FIG. In FIG. 18, the same components as those in FIG. 15 are designated by the same reference numerals, and the description thereof will be omitted. FIG.
15 differs from that of FIG. 15 in that the gas discharge port 151
The point is that the spray nozzles 180 to 184 are provided at a substantially intermediate position between the gas discharge port 152 and the gas discharge port 152. Thus, by spraying water particles in the center of the double air curtain, the water mist curtain 185 can be formed between the double air curtains 157 and 158.
The heat shield effect is remarkably improved. The spray nozzle 130-
134, spray nozzles 180 to 184 and spray nozzle 13
By arranging 5 to 139 in a zigzag manner, the density of the mist of the water mist curtains 147 and 185 can be made uniform, and the ceiling 25 near the nozzles can be provided.
It becomes possible to minimize the void portion formed between the and, and the effect as a water mist curtain can be improved. In addition, in FIG. 18, the spray nozzles 130 to 134 on the fire side and the spray nozzles 180 to 18 on the central portion are shown.
Water particles are sprayed from 4 but all spray nozzles 13
Water particles may be sprayed from 0 to 139 and 180 to 184.

FIG. 19 is a diagram showing a modification of FIG. In FIG. 19, the same components as those in FIG. 18 are designated by the same reference numerals, and the description thereof will be omitted. FIG. 19
18 differs from that of FIG. 18 in that the gas discharge port 151
The spray nozzles 180 to 184 are provided at approximately intermediate positions between the gas discharge port 152 and the gas discharge ports 152, and the spray nozzles 130 to 1 on both sides are provided.
This is the point where 39 is omitted. Thus, by spraying water particles in the center of the double air curtain, the water mist curtain 185 can be formed between the double air curtains 157 and 158, so that the water particles are scattered in the compartment. Since it does not, damage due to flood damage will be reduced. In the case of FIG. 19 as well, as shown in FIGS. 16 and 17, the gas discharge port and the gas discharge dust are omitted, and the gas discharge port 151,
The gas blown out from 152 may be blown onto the upper surface of the floor slab 20.

In the above embodiments, the case where gas and water particles are discharged and sprayed from the ceiling to the floor surface, that is, from the upper side to the lower side has been described. From above, gas and water particles may be discharged and sprayed upward. In addition, a so-called blow-out port for discharging and spraying gas, water particles and the like from both the ceiling and the floor may be a two-way blow-out type. This is because when the frontage of the opening is large, it is possible to reduce the variation of the blown gas by blowing from both directions. Further, in the above embodiment, the case where the gas discharge port and the spray nozzle are provided on the ceiling side has been described, but when columns are present on both sides of the opening, they may be provided on the side faces of the columns, Side of the ceiling and columns,
It may be provided in three directions: the ceiling, the floor, and the side of the pillar. When the gas discharge port and the spray nozzle are provided outside the ceiling, the gas and water particles are discharged and sprayed in various directions such as from bottom to top or from top to bottom. Further, the gas discharge port and / or the nozzle may be provided on the side surface of the column and / or
Alternatively, it may be provided on the floor. The gas discharge port is preferably provided on the floor surface side, but may be provided on the side surface of the column if it is near the floor surface.

In the above-mentioned embodiment, the panel moving laterally from the inside of the building when a fire occurs was described as an example, but in addition to this, the shielding member for fire prevention is extended from the top by the descending method. The same can be applied to the case where it is raised or the case where it is fed out in a rising manner. For example, the invention can be similarly applied to a device using a fireproof shutter device that shields the shutter curtain, which is a shielding member, by being extended while descending. In this case, a fireproof shutter device may not be provided in a part of the opening, but a device using an air curtain and a water mist curtain may be installed there. Further, in addition to the fireproof shutter device, the shutter-like shielding member can be applied in the same manner even if the shutter-shaped shielding member is extended by a horizontal pulling method, raised by a rising method, or extended by a horizontal method. In addition to the purpose of fire prevention, it can also be applied to the purpose of smoke prevention, crime prevention, sun protection, rain protection, etc., depending on its installation location and surrounding environment, condition, and various circumstances. Examples of the opening / closing device include a shutter device, a blind device, a roll screen device, and a hanging device. When the opening / closing device is a shutter device, the shielding member that is the shielding means is a shutter curtain, and the structure is such that a slat curtain made of many strip-shaped slat materials, and many pipe materials are connected by link materials. A pipe grill curtain, a panel curtain made of one or a plurality of connected panel materials, a net curtain made of a net material, a sheet curtain made of a synthetic resin or cloth fiber sheet material, or a composite member of these materials. This is due to curtains. The material of the shielding member, which is the shielding means, may be any material as long as it is suitable for the purpose of use. Specifically, it may be made of metal, wood, plastic, cloth, or a combination thereof. In the case of a switchgear installed for the purpose of fire protection, it is preferable that at least the material of the shielding member as the shielding means has fire resistance.

In the flow charts of FIGS. 6 and 11, the case where the spray of water particles is maintained until the fire is extinguished has been described. However, the spray state of water particles is changed according to the detection signal from the smoke sensor or the heat sensor. You may make it control suitably. For example,
You may perform on / off control of spraying according to a heat detection signal and a smoke detection signal. In this case, as shown in FIG. 6, the water particle spray state is variously controlled according to the temperature detected by the heat sensor, and the water particle is controlled according to the smoke concentration and amount detected by the smoke sensor. You may make it control variously the spray state of.

[0052]

As described above, according to the fire and smoke prevention compartment forming system of the present invention, when the fire and smoke prevention compartment is formed by using one or a plurality of shielding members, each of fire prevention, smoke prevention and heat shielding is provided. There is an effect that the performance can be sufficiently satisfied.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of a conventional fire and smoke prevention compartment forming system.

FIG. 2 is a front view showing a schematic configuration of the conventional fire and smoke prevention compartment forming system of FIG.

FIG. 3 is a diagram showing a schematic configuration and an operation example of the fire and smoke defensive compartment forming system according to the present invention, showing a state before and immediately after the occurrence of a fire.

FIG. 4 is a diagram showing a schematic configuration and an operation example of a fire and smoke defensive compartment forming system according to the present invention, showing a state after a fire has occurred and after the fire and smoke defensive compartment has been formed.

FIG. 5 is a diagram showing the relationship between the temperature change of the shielding member and the spray state of the spray nozzle.

FIG. 6 is a flow chart showing an example of the operation of the fire and smoke prevention compartment forming system of FIGS. 3 and 4.

FIG. 7 is a diagram showing some examples of how the fire and smoke prevention section forming system shown in FIGS. 3 and 4 is arranged in a building space.

FIG. 8 is another diagram showing some examples of how the fire and smoke prevention compartment forming system shown in FIGS. 3 and 4 is arranged in a building space.

FIG. 9 is a diagram showing a schematic configuration and an operation example of a fire and smoke defensive compartment forming system according to a second embodiment of the present invention.

FIG. 10 is a view showing a modified example in which the position of the opening formed by the temporary stop positions of the panels 31 to 36 can be arbitrarily set.

FIG. 11 is a flow chart showing an example of the operation of the fire and smoke prevention compartment forming system of FIG.

FIG. 12 is a diagram showing some examples of how the fire and smoke prevention section forming system shown in FIG. 9 is arranged in a building space.

FIG. 13 is a diagram showing a configuration of a fire and smoke prevention compartment forming system that leaves an opening until the end of the fire (extinguishes the fire) and continues spraying water particles from the spray nozzle to the opening. View of the system from the front of the opening

FIG. 14 is a view showing a configuration of a fire / smoke-proof compartment forming system in which an opening is left until the end of a fire (extinction is extinguished), and water particles are continuously sprayed from the spray nozzle to the opening. Partial sectional view of the relationship with

FIG. 15 is a diagram showing a schematic configuration of a fire and smoke prevention compartment forming system in which gas discharge ports, that is, air curtains are provided in double.

16 is a diagram showing a modification of FIG.

17 is a diagram showing a modification of FIG.

FIG. 18 is a diagram showing a modification of FIG.

FIG. 19 is a diagram showing a modification of FIG.

[Explanation of symbols]

11, 12, 11a ... Bracket, 13, 13a ... Winding shaft, 14, 14a ... Slat curtain, 15, 1
6 ... Guide rails, 20 ... Slabs, 21 ... Pillars, 23 ... Upper floor slabs, 24 ... Beams, 25 ... Ceilings, 26 ... Magella, 2
7, 28 ... Smoke sensor (or heat sensor), 30, 90, 1
00, 102 ... Openings, 31-36 ... Panels, 37, 3
8 ... door pocket, 41-44, 91, 101, 103, 130
~ 139, 180-184 ... Spray nozzles, 71-76,
121-124 ... Fire and smoke prevention section, 141, 151, 15
2 ... Gas discharge port, 142, 153 ... Gas discharge port, 14
3,154,155 ... Gas introduction ducts, 144,156
... Gas exhaust duct, 145 ... Combustible material (commodity), 146,
157, 158 ... Air curtain, 147, 185 ... Water mist curtain, 148, 149 ... Water supply pipe

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G08B 17/00 E06B 9/17 B 9/12 B (72) Inventor Yohei Takahata 3 Shimura, Itabashi-ku, Tokyo 26th No. 4 Cultural term in Culture Shatter Co., Ltd. (reference) 5G405 AA01 AA06 AB01 AB02 CA27

Claims (8)

[Claims] 1. A partition forming means for forming a plurality of partitions in the building by extending a shielding member into the building to partition the space in the building, and the space in the building is partitioned by the shielding member. In this case, a first supply means for supplying a relatively small amount of water to a portion where the performance of at least one of fire prevention, smoke prevention and heat shielding is lower than the other portion of the compartment forming means is provided. A characteristic fire and smoke prevention compartment formation system. 2. The first supply means according to claim 1, wherein the first supply means supplies a relatively small amount of water from a non-fire side to a gap between the shielding member and the building. A fire and smoke prevention compartment forming system characterized by having. 3. The fire protection according to claim 1, wherein the first supply means has a second supply means for supplying a relatively small amount of water for cooling the shielding member. Smoke compartment forming system. 4. The fire and smoke prevention compartment forming system according to claim 3, wherein the second supply means controls the supply and non-supply states of the water according to the temperature of the shielding member. 5. The partition forming means according to claim 1, 2, 3 or 4, wherein a predetermined partition is formed in the building by feeding one or a plurality of panel members into the building. Fire and smoke prevention compartment forming system. 6. The fire and smoke prevention compartment forming system according to claim 1, wherein the shielding member is provided with an evacuation opening capable of evacuating to another compartment. 7. The non-fire of the plurality of compartments according to claim 1, 2, 3, 4, 5 or 6, when the space in the building is partitioned by the shielding member in response to the occurrence of a fire. A fire / smoke and smoke compartment forming system, comprising a third supply means for supplying a relatively small amount of water into the side compartment. 8. A partition forming means for forming a plurality of partitions in the building by extending a shielding member into the building to partition the space in the building; A fire and smoke proof compartment formation system, comprising: a supply means for supplying a relatively small amount of water into the non-fire side compartment among the plurality of compartments when partitioned by a shielding member.