JP3791768B2 - Fire and smoke protection compartment formation system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shielding member such as a sheet-like or shutter-like fire curtain or a movable panel in a space such as a passage or an opening inside a building in order to prevent the spread of a fire or smoke spreading inside the building. The present invention relates to a fire prevention and smoke prevention section forming system which forms a fire prevention and smoke prevention section by partitioning with the above.
[0002]
[Prior art]
In general, in passages inside buildings such as buildings with large floor areas, shields such as sheet-like or shutter-like fire curtains that close automatically when a fire occurs to prevent the spread of fire and the spread of smoke in the event of a fire Using a member, a fire- and smoke-proof zone forming system that operates to form a three-dimensionally enclosed space, that is, a fire and smoke-proof zone, is provided with pillars, walls, floors, and the like.
[0003]
1 and 2 are diagrams showing a schematic configuration of this fire and smoke / compartment forming system. FIG. 1 is a view of the fire and smoke / compartment forming system seen from the side, and FIG. 2 shows this from the front. FIG. The shielding device used in the fire prevention and smoke prevention compartment forming system of FIG. 1 is a fire prevention curtain device. The fire curtain device basically includes brackets 11 and 12, a winding shaft 13, and a slat curtain 14. In FIG. 2, two fire curtain devices having the same configuration are shown next to each other, and one of them will be described. Since the fire curtain device is conventionally known to have other components such as an automatic closing device, the details thereof are omitted. The brackets 11 and 12 are attached to the side surface (front side in FIG. 2) of the beam 24 formed on the upper floor slab 23 side between the column 21 and the column (not shown) in the building. The winding shaft 13 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).
[0004]
The lintels 26 are provided on both sides of the slit-shaped opening formed in the ceiling 25 which is the entrance and exit of the slat curtains 14 and 14a. In addition, a guide rail 15 that is a middle 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 and the slab 20 are adjacent to each other between the ceiling 25 and the slab 20. A guide rail 16 serving as a guide for the slat curtain 14a is provided. The slat curtain 14 is raised and lowered along the guide rails 15 and 16 via the lintels 26. A state where 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 positioned at substantially the same height as the lintel 26, and when a fire breaks out, the fire curtain device is connected to the smoke detector (or heat detector) 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 FIG. 1, the guide rail 16 is not shown, and in FIG. 2, the ceiling 25 is indicated by a dotted line. 1 shows a fully closed state of the slat curtain 14, and FIG. 2 shows a semi-closed state.
[0005]
[Problems to be solved by the invention]
Conventionally, as shown in FIG. 1 and FIG. 2, the fire prevention and smoke prevention section is formed by using the fire prevention curtain device. Therefore, as shown in FIG. 1, there are combustibles on both sides of the slat curtain 14 of the fire prevention curtain device. If present, if the amount of combustible material on the fire side is large, the calorific value of the combustible material is large, or if the combustible material burns for a long time, the radiant heat will increase or the non-fire of the slat curtain The temperature on the side may rise and the non-fire side combustibles may spread. In addition, if there is a person on the non-fire side, touching the slat curtain, or staying next to it, there is a risk of being damaged by a burn or the like. In addition, the conventional fire curtain device is configured to shield the opening with the slat curtain 14 to perform fire prevention, smoke prevention, and heat insulation. However, the entire curtain device does not necessarily have equal performance of fire prevention, smoke prevention, and heat insulation. May not be present. For example, a slight gap may be generated near the lintel 26 between the slat curtain 14 and the ceiling 25 or between the slat curtain 14 and the guide rail 16. Further, when a door (including a slit) is provided on the slat curtain, a slight gap may be generated at the installation location.
[0006]
Furthermore, in the case of a shielding device other than the fire curtain device, the performances of fire prevention, smoke prevention and heat insulation may not be sufficiently satisfied in the following points. For example, a slight gap is generated at a place where the fireproof screen or the like is not overlapped but is simply overlapped (including the case where the screen is simply joined with a fastener or the like, or simply stitched with a flame retardant thread or the like). It can happen. In the case of a movable guide rail type shutter device, there may be a slight gap between adjacent guide rail portions or the guide rail itself. When the shielding member is made of different materials such as cloth, plastic, metal, etc., for example, when the cloth shutter and the steel shutter are combined, or when the material is mixed in one shutter, Depending on these materials, the fireproof, smokeproof, and heat shield performances may not be constant. Furthermore, when there is an opening of a size that allows a person to pass through the shielding member, a gap may be generated around the opening. Moreover, the open part until the shielding member is fully closed (regardless of whether or not a person can pass through) is a weak part in terms of fireproof, smokeproof, and heat shield performance. As described above, when the opening is shielded by one or a plurality of shielding members to perform fire prevention, smoke prevention, and heat insulation, conventionally, the entire shielding member is not necessarily allowed to exert its performance equally. It was sometimes difficult.
[0007]
An object of the present invention is to provide a fire prevention and smoke prevention section forming system capable of further improving the performance of fire prevention, smoke prevention and heat insulation when a fire prevention and smoke prevention section is formed using one or a plurality of shielding members. There is.
[0008]
[Means for Solving the Problems]
The first feature of the fire- and smoke-proof compartment forming system according to the present invention is that the compartment forming means forms a plurality of compartments in the building by extending a shielding member into the building to partition the space in the building, When a space in a building is partitioned by the shielding member, a relatively small amount of water is sprayed to a part where the performance of at least one of fire prevention, smoke prevention and heat insulation is lower than the other part of the partition forming means. And a first supply means. Shielding members for fire protection are drawn out by the horizontal pulling method, raised by the lifting method, or provided at the top of the building like a fire prevention curtain, and the fire prevention curtain may descend through a lintel etc. . Thus, by extending the shielding member into the building, the space inside the building is partitioned and a plurality of sections are formed. These compartments are often partitioned by the shielding member and the building itself, but depending on where the shielding member is installed, there may be a slight gap between the building and depending on the characteristics of the shielding member itself, fire protection, smoke prevention, Each performance of heat may not be constant. Moreover, the open part until the shielding member is fully closed (regardless of whether or not a person can pass) may have weak parts in terms of performance of fire prevention, smoke prevention, and heat insulation. Therefore, by spraying relatively small amounts of water such as water mist, for example, water particles having a particle size smaller than water such as sprinklers, mainly on such portions using the first supply means, At least one of the weak parts of each performance was compensated. For example, when there is a gap between the shielding member and the building, smoke is prevented from entering by spraying water particles from the non-fire side to the portion, thereby improving the smoke-proof performance. Further, by spraying water particles on the shielding member, the portion is prevented from being heated and the performance of fire and heat insulation is improved. In addition to these, spraying water particles can improve the performance of fire prevention, smoke prevention and heat insulation. In addition, although it is preferable to spray water mist etc. with respect to a clearance gap part, you may make it form a water film in the clearance gap by flowing a small amount of water. For example, since a water film can be formed by flowing a small amount of water through the slits and the relatively narrow gaps in the stitched part of each low-performance part, effective fire prevention by the water film, Smoke prevention and heat insulation can be performed. In addition, as a weak part in terms of each performance of fire prevention, smoke prevention, and heat insulation, the following can be considered, for example. There are some gaps in the fireproof screen etc. that are not stitched etc. and are simply overlapped (including cases where they are simply joined with a fastener or simply stitched with a flame retardant thread etc.) Applicable. In the case of a movable guide rail type shutter device, a portion of the guide rail that is adjacently engaged, or a slight gap portion that occurs in the guide rail itself, or the like is applicable. When the shielding member is made of different materials such as cloth, plastic, metal, etc., for example, when the cloth shutter and the steel shutter are combined, or when the material is mixed in one shutter, Depending on these materials, there may be portions where the performance of fire prevention, smoke prevention, and heat insulation is not constant. When the opening has a size that allows a person to pass through the shielding member, a gap portion or the like generated around the opening corresponds to the opening. An open part or the like until the shielding member is fully closed (regardless of whether or not a person can pass through) corresponds to a weak part in terms of fire protection, smoke prevention, and heat insulation performance. In addition to these, when the opening is shielded by one or a plurality of shielding members to perform fire prevention, smoke prevention, and heat insulation, the portion where it is difficult for the entire shielding member to exert its performance uniformly is necessarily applicable. . In the specification of the present application, the term “fireproof / smokeproof / compartment forming system” includes a case where fireproof is intended, a case where smoke is aimed, and a case where both fireproof / smoke is aimed.
[0009]
According to a second feature of the fireproof and smokeproof compartment forming system according to the present invention, in the first feature, the first supply means is configured so that the gap between the shielding member and the building is from the non-fire side. It has a 1st supply means which supplies a comparatively small amount of water. In this method, a relatively small amount of water is supplied to the gap between the shielding member and the building, for example, water particles are sprayed to prevent smoke from entering there.
[0010]
According to a third aspect of the present invention, there is provided a third feature of the first or second feature, wherein the first supply means supplies a relatively small amount of water for cooling the shielding member. The second supply means. This cools the shielding member itself, suppresses the temperature rise of the shielding member, and improves the flameproofing and heat shielding effects. As a result, there is an effect that fire spread through the shielding member is less likely to occur. In this case, a relatively small amount of water may be supplied from either the fire side or the non-fire side on either the fire side or the non-fire side, for example, water particles may be sprayed.
[0011]
According to a fourth feature of the fireproof and smokeproof compartment forming system according to the present invention, in the third feature, the second supply means supplies and blocks the relatively small amount of water according to the temperature of the shielding member. The supply state is controlled. This is because the place where the fire broke out may be close to or far from the shielding member, so that a relatively small amount of water supply and non-supply state, for example, water The spraying and non-spraying of 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.
[0012]
According to a fifth feature of the fireproof and smokeproof compartment forming system according to the present invention, in the first, second, third, or fourth feature, the compartment forming means includes one or more panel members in the building. By drawing out, a predetermined section is formed in the building. In this case, the partition forming means is constituted by a panel member that is fed out in a horizontal pulling manner. In the case where there are a plurality of panel members, by providing irregularities at the contact end portions between adjacent panels, the portions can be sealed so that no gap is generated. Therefore, since a gap is formed between the panel member and the building, a relatively small amount of water may be supplied mainly to this portion.
[0013]
According to a sixth feature of the fireproof and smokeproof compartment forming system according to the present invention, in the first feature, the shielding member includes an escape port capable of evacuating to another compartment. This is because the panel member is provided with an evacuation opening so that movement between the sections can be performed freely even after the sections are formed.
[0014]
According to a seventh feature of the fireproof and smokeproof compartment forming system according to the present invention, in the first, second, third, fourth, fifth, or sixth feature, the space in the building according to the occurrence of a fire. Is provided with a third supply means for supplying a relatively small amount of water into the non-fire side compartment among the plurality of compartments. This is to supply a relatively small amount of water, for example, spray water particles, in all sections other than the non-fire side, that is, the section where the fire is occurring, after the section is formed by the section forming means. Thus, the air pressure in the non-fire side compartment is increased by a relatively small amount of water supply pressure (spray pressure in the case of water particles), thereby preventing smoke from entering from the fire side.
[0015]
According to an eighth feature of the fireproof and smokeproof compartment forming system according to the present invention, a compartment forming means for forming a plurality of compartments in the building by extending a shielding member into the building and partitioning the space in the building; Supply means for spraying a relatively small amount of water into the non-fire side compartment among the plurality of compartments when the space in the building is partitioned by the shielding member in response to the occurrence of It is. This is to provide only the third supply means described in the seventh feature to prevent smoke from entering from the fire side after the section is formed.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a fireproof and smokeproof compartment forming system according to the present invention will be described with reference to the accompanying drawings. FIG. 3 and FIG. 4 are diagrams showing a schematic configuration and an operation example of the fire prevention and smoke prevention compartment forming system. FIG. 3 is a diagram showing a state before and immediately after the occurrence of a fire, and FIG. 4 is a diagram showing a state after the occurrence of a fire and after the formation of a fireproof and smoke-proof section.
[0017]
As shown in the figure, the fireproof and smokeproof compartment forming system according to this embodiment is composed of a plurality of panels in which a shielding member is stored in a storage part such as a door pocket, and these panels are moved after a fire occurs. , Which operates to close the opening. This panel has a thickness of about 30 to 70 [mm], for example, and has a hollow structure or a solid structure. Normally, a fire shutter device is used to form a fire and smoke / compartment in a building. From the following points, in this embodiment, the panel is used to form a fire and smoke / fire compartment. In the case of an iron fire-proof shutter device, the heat shielding performance is slightly inferior, so if the shutter curtain part is heated in the event of a fire, heat may be transferred from that part to the non-fire side and spread and spread . In addition, since there is a limit to the opening width of a series of fire shutter devices, when the width of the opening in the building is large, a plurality of fire shutter devices are installed there, and the guide rail which is the middle pillar accordingly. In a normal time such as a non-fire time, it is not preferable from the viewpoint of the design and the arrangement of articles (products, etc.). Furthermore, when area division is performed using a plurality of fire shutter devices, there is a risk that smoke enters outside the division and the evacuees are covered with smoke. Therefore, in this embodiment, the heat shielding performance is high, and there is no need 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 form a fire and smoke protection compartment using panels.
[0018]
In FIG. 3, the plurality of panels 31 to 36 are stored and stored in door pockets 37 and 38. In FIG. 3A, 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 the upper surface of the opening 30. The water particles sprayed from these spray nozzles 41 to 44 are water mist having a particle size of about 40 to 400 microns. In the present application, the particle size refers to the Sauter average particle size. The Sauter average particle size will be described. If 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 spray volume is Σxi. ^Three In proportion to Δni, the total surface area is Σxi ² It is proportional to Δni. The average particle diameter based on the surface area is a value obtained by dividing the total volume of spray by the total surface area (Σxi). ^Three Δni / Σxi ² Δni).
[0019]
The spray nozzle 41 is provided along the left side surface of the opening 30 and sprays water particles toward a gap formed between the panel 33 and the building wall surface. The spray nozzle 42 is provided along the right side surface of the opening, and sprays water particles toward a gap formed between the panel 36 and the building wall surface. The spray nozzle 43 is provided along the upper surface of the opening 30 and sprays water particles toward a gap formed between the panels 31 to 36 and the upper side of the building wall surface. The spray nozzle 44 is also provided along the upper side surface of the opening 30, but does not spray water particles toward the gap like the spray nozzle 43, and the panels 31 to 36 that close the opening 30. The water particles are sprayed to form a water mist curtain for fire prevention and smoke prevention at the opening 30. In the figure, only the spray nozzles 41 to 44 existing on the front side of the opening 30 are shown, but the same thing exists on the back side of the opening 30. Among the panels 31 to 36, adjacent panels have irregularities at their contact ends, are sealed, and have a structure that does not generate a gap, so that smoke or the like passes between the panels 31 to 36. Is decreasing. Accordingly, the spray nozzles 41 to 43 are provided around the plurality of openings 30 as shown in the drawing, that is, at positions that entirely surround the panel groups 31 to 36 after closing, and are provided between the panels. Absent. In addition, although not provided in the lower surface side of the panels 31-36 in the figure, you may provide. However, smoke tends to enter through the gap above the lower side, so that even the one shown in the figure has a sufficient smoke shielding effect.
[0020]
In FIG. 3B, the large opening 30 in the building is closed by these six panels 31-36. When the smoke detector or the heat detector detects a fire after the fire has occurred, as shown in FIG. 3B, these panels 31 to 36 are installed on the periphery of the opening 30 from the door pockets 37 and 38. In addition, a closing operation is performed along a lower rail or the like (not shown) to close the opening 30. The power of these panels 31 to 36 starts to operate by the power of a counterweight, a motor, etc., or the panel's own weight 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 it is possible to freely correspond to a large opening. Further, the panel has a configuration that can be freely combined and divided.
[0021]
In FIG. 4 (A), after the fire has occurred, after the panels 31 to 36 close the opening 30 to form a predetermined section, the spray nozzles 41 to 43 have gaps between the panels 31 to 36 and the wall surface. Water particles are sprayed on the part, and the spray pressure prevents the smoke from the fire side from entering the non-fire side, and the mist particles absorb and extinguish the smoke, thereby preventing the diffusion of the smoke.
[0022]
In FIG. 4 (B), the spray nozzle 44 is a panel separately from the spray nozzles 41 to 43 according to the operation of the timer, according to the instruction signal from the disaster prevention center, or according to the sense signal from the heat detector or the like. Water particles are sprayed over the entire surface of 31-36. Thereby, heating of the panels 31-36 can be prevented with a small amount of water, and the possibility of fire spread from the fire side to the non-fire side can be reduced until the end of the fire.
[0023]
In FIG. 4 (C), the panels 32 and 35 are provided with a submerged door as an emergency evacuation port so that they can evacuate to other sections. In this case, when the sliding door is opened, the possibility of smoke entering from the sliding door can be extremely reduced by the action of the water mist curtain of water particles sprayed from the spray nozzle 44.
[0024]
In FIG. 4, once water particles are sprayed from the spray nozzle 44, the state is continuously performed. However, as shown in FIG. 5, the fire side or the non-fire side of the panels 31 to 36 is shown. The temperature may be monitored, and the spray state of the 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 apparent from the figure, the fire-side surface temperature 51 of the panels 31 to 36 instantaneously reaches the limit temperature of the thermometer and maintains that limit temperature until the fire is extinguished. On the other hand, the non-fire side surface temperature 52 of the panels 31 to 36 rises with a certain delay time with respect to the fire side surface temperature 51. When the non-fire side surface temperature 52 reaches a preset spray start temperature, spraying of water particles starts from the spray nozzle 44 at that time. As a result, 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 time. When the spraying of the spray nozzle 44 is stopped, the non-fire side surface temperature 52 starts to gradually increase again, reaches the spray start temperature again, and the spray nozzle 44 starts spraying. Thereafter, the spray-stop operation is repeated until the fire is extinguished.
[0025]
FIG. 6 is a flowchart showing an example of the operation of the fire prevention and smoke prevention section forming system of FIGS. 3 and 4. First, when a fire occurs, the smoke detector is activated (step S60). Then, a 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 water mist curtain for smoke shielding (step S62). This step is optional and may be omitted. In accordance with an instruction from the disaster prevention center, a stopper such as an electromagnetic release is released (step S63). The power source operation is started to move the panels 31 to 36, which are shielding members, by releasing the electromagnetic release (step S64). The panels 31 to 36, which are shielding members, start 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 elapse signal is output from a timer that has timed a predetermined time after the closing operation of the shielding member is started (step S67). . By inputting the completion signal or the predetermined time elapsed signal, the smoke shielding mist, that is, the spray nozzles 41 to 43 for the gap smoke shielding section, starts spraying water particles (step S68). A heat sensor signal is detected from the heat sensor (step S69), and the heat sensor signal is transmitted to the disaster prevention center and others (step S6A). In accordance with an instruction from the disaster prevention center, the spray nozzle 44 for heat shielding starts spraying water particles (step S6B). When this state is maintained until the fire is extinguished, the process ends as it is. In addition, when performing spray-stop control like FIG. 5, it progresses to following step S6C or less. By spraying water particles from the spray nozzle 44, the non-fire side surface temperature 52 of the panels 31 to 36, which are shielding members, is lowered as shown in FIG. 5 (step S6C). 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). As the spraying operation is stopped, the non-fire side surface temperature 52 gradually increases as shown in FIG. 5, so the non-fire side surface temperature 52 is monitored (step S6E). It is determined whether or not the non-fire side surface temperature of the panels 31 to 36 has reached the spray start temperature, and if it reaches (yes), the process returns to step S6B to start spraying and does not reach (no) ) If the fire is extinguished, the process ends.
[0026]
FIGS. 7 and 8 are plan views showing some of the arrangement examples of how the fire prevention and smoke prevention compartment forming system shown in FIGS. 3 and 4 is arranged on the building space. In FIG. 7 (A), the fireproof and smokeproof section forming system shown in FIGS. 3 and 4 is arranged in the middle part of the rectangular building space surrounded by the outer wall, thereby dividing the building space into left and right 2 The case where two large fire prevention and smoke prevention sections 71 and 72 are formed is shown. In FIG. 7B, there is a pit section such as an escalator in the center of a square-shaped building space surrounded by the outer wall, and the fire prevention shown in FIGS. The case where the smoke-proof zone formation system is arrange | positioned, and the fire-proof smoke-proof zone 73-76 divided | segmented into the building space by the top, bottom, left, and right four is shown is shown. That is, spray nozzles 41 to 44 as shown in FIGS. 3 and 4 are arranged on both surfaces of a panel which is a shielding member provided in a building, and water particles are discharged from the non-fire side spray nozzle by a smoke detector or a heat detector. To ensure fire, smoke, and heat insulation performance. In addition, each section including the stairs forms a separate fire and smoke protection section.
[0027]
FIG. 8A shows a spray nozzle for spraying water particles on the entire surface of the fire prevention and smoke prevention compartments 73 to 76 shown in FIG. 7B, and when a fire occurs, other than the fire occurrence compartment (non-fire compartment) Spraying water particles from all the spray nozzles of the above, increasing the overall air pressure in the non-fire compartment by the spray pressure of the water particles, preventing smoke from entering the non-fire compartment from the fire occurrence compartment, Even when smoke enters, it tries to absorb and extinguish with water particles. For example, when a fire occurs in the fire prevention and smoke prevention section 73, water particles are sprayed from the spray nozzles arranged in other fire prevention and smoke prevention sections 74 to 76.
[0028]
FIG. 8 (B) is an enlarged view of a pothole section such as an escalator in the center of FIG. 8 (A). Here, a panel as a shielding member is arranged so as to surround the pothole section, The case where the spray nozzle is provided inside is shown. By disposing the spray nozzle inside the pit compartment in this way, it is possible to prevent the intrusion of smoke into the pit compartment and to absorb and extinguish smoke with water particles. Although the figure shows the case where the spray nozzle is provided only on the inner side, it goes without saying that the spray nozzle may be provided on the outer side to prevent the intrusion of the smoke that has risen up the pit compartment. Yes.
[0029]
As described above, according to the first embodiment, a shielding member (panel) serving as a fireproof and smokeproof wall is made movable and normally stored in a door pocket or the like, thereby increasing the space area when using the building. Can take. Further, by spraying water particles onto the shielding member, it is possible to ensure heat shielding properties and to prevent the spread of fire from the section where the fire is occurring to other sections as much as possible. Further, by spraying water particles into the gap between the shielding member and the building, it is possible to ensure smoke shielding properties and prevent 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, a large opening of 5 m or more can be handled. By using water particles having a small particle size, it is possible to reduce the amount of water used and minimize damage to products due to water. Further, by controlling the spraying of water particles according to the temperature of the shielding member, the amount of water used and further damage caused by water can be reduced. Moreover, since the part is cooled by spraying water particles, the heat shielding performance of the panel as a shielding member can be assisted, and the weight of the panel alone can be reduced. Is also advantageous. In the above-described embodiment, the spray nozzle 43 is used for the smoke shielding gap and the spray nozzle 44 is used for cooling the shielding member. You may make it perform spraying for. For example, the spray angle of the water particles of the spray nozzle may be increased so that a part thereof is used for the smoke shielding gap and the rest is used for cooling the shielding member.
[0030]
FIG. 9 is a diagram illustrating a schematic configuration and an operation example of the fire prevention and smoke prevention section forming system according to the second embodiment. 9, the same components as those in FIGS. 3 and 4 are denoted by the same reference numerals. In the embodiment of FIGS. 3 and 4, spray nozzles 41 to 44 are provided over the entire area of the opening 30, and water particles are sprayed from the spray nozzle 44 when smoke is detected, so that water for smoke shielding is provided. When a mist curtain is formed and the opening 30 is shielded by the panels 31 to 36, water particles are sprayed from the spray nozzles 41 to 43 onto the gaps, and when the surface temperature of the non-fire side of the panel rises, the spray nozzle The case of spraying water particles for cooling the panel from 44 has been described. However, when a building with a large number of evacuees is partitioned, if the large-span opening is shielded all at once using a panel or the like, the evacuees may be delayed. Moreover, if all the panels are closed at once, a situation may arise in which it is 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 on the small opening made by the stop to perform fire prevention and smoke prevention. A safe evacuation passage is secured, and the opening is completely closed after a lapse of a certain period of time, so that the fire-proof smoke-proof performance and the heat-shield performance are effectively maintained.
[0031]
In FIG. 9, the plurality of panels 31 to 36 are stored and stored in door pockets 37 and 38. In FIG. 9A, 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 spray nozzle 91 different from the plurality of mist spray nozzles 41 to 44 shown in FIGS. 3 and 4 is installed. The 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 the spray nozzle 44 of FIGS. Yes. The water particles sprayed from the spray nozzle 91 are water mist having a particle size of about 40 to 400 microns. The spray nozzle 91 may spray the water particles on the panels 31 and 34 to cool the panels 31 and 34. Moreover, the spray nozzles 41-43 as shown in FIG.3 and FIG.4 may be provided. In the figure, only the spray nozzle 91 existing on the front side of the opening 30 is shown, but the same is present on the back side of the opening 30.
[0032]
The large opening 30 in the building is finally closed by these six panels 31-36, but here the smoke or heat sensor will fire after a fire. When detected, as shown in FIG. 9B, these panels 31 to 36 are closed along the upper rail and / or the lower rail installed around the opening 30 from the door pockets 37 and 38. And gradually close the opening 30. When the opening 30 reaches the size of the opening 90 due to the movement of the panels 31 to 36, the movement of the panels 31 to 36 is temporarily stopped. The stopping operation of the panels 31 to 36 is performed by a stopper or the like provided on the upper rail and / or the lower rail. The power of the panels 31 to 36 starts to operate by the power of a counterweight, a motor, or the like, or the panel's own weight 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 it is possible to freely correspond to a large opening. Further, the panel has a configuration that can be freely combined and divided.
[0033]
In FIG. 9C, after the fire has occurred, the panels 31 to 36 are moved and the opening 90 is formed between the panels 31 and 34. Then, the spray nozzle 91 sprays water particles and sprays the water particles. The curtain action of the water particles effectively prevents the smoke that enters the non-fire side through the opening 90 together with the heat insulation, adsorbs and extinguishes the smoke by the mist particles, and prevents the diffusion of the smoke. Further, as shown in the figure, since there is no shielding member such as a panel in the opening 90, the evacuees can freely escape through the opening. In addition, since the opening 90 is not a sliding door as shown in FIG. 4C, 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. In addition, even if it is a sliding door as shown in FIG.4 (C), the same horizontal evacuation can be enabled by using the sliding door in which the part which contact | connects a floor surface is barrier-free.
[0034]
In FIG. 9D, a time when all evacuees will complete evacuation is set in advance by a timer or the like, and the panel 31 is based on a timer signal output when the evacuation completion time has elapsed. The stopper which has stopped the movement of .about.36 is released, the power source is started, the panels 31 to 36 are moved again, and the opening 90 is completely closed. The closing operation may be resumed according to an instruction signal from the disaster prevention center or according to a detection signal from a heat detector or the like. Note that 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 spraying operation from the spray nozzle 91 is stopped. Further, a sliding door as shown in FIG. 4C may be provided so that an evacuation passage can be secured even after closing. Furthermore, the opening 90 may be left until the end of the fire (extinguish), and water particles may be continuously sprayed from the spray nozzle 91 to the opening 90 as shown in FIG. In this way, it is possible to ensure flameproofness (flameproofing) and smokeproofing (smokeproofing) while holding the opening.
[0035]
FIG. 10 is a diagram illustrating 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. FIG. 10A shows a case where the opening 100 is slightly closer to the left side than that of FIG. FIG. 10B shows a case where the panel is single-drawn and the opening 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 double-drawing of the panel, the single-drawing of the panel, and the arrangement of equipment such as products inside the building. In addition, when changing the location of the opening, the arrangement of the spray nozzles 101 and 103 is also changed correspondingly, or it is arranged in advance at all locations so that the opening may be located anywhere. It is good to keep.
[0036]
FIG. 11 is a flowchart showing an example of the operation of the fire prevention and smoke prevention section forming system of FIG. First, when a fire occurs, the smoke detector is activated to detect the fire (step S110). Then, a smoke detection signal from the smoke detector is transmitted to the disaster prevention center (step S111). A stopper such as an electromagnetic release is released in accordance with an instruction from the disaster prevention center (step S112). The power source operation is started to move the panels 31 to 36, which are shielding members, by releasing the electromagnetic release (step S113). The closing operation of the panels 31 to 36, which are shielding members, is started by the operation of power (step S114). The panels 31 to 36, which are shielding members, are stopped by the temporary stopper, and the opening 90 is formed (step S115). A stop signal is output when the shielding member is temporarily stopped, or a predetermined time elapse signal (timer signal) is output from a timer that measures a predetermined time from the start of the closing operation of the shielding member to the temporary stop. Is output (step S116). By inputting a stop signal or a predetermined time lapse signal, the spray nozzle 91 provided on the ceiling starts spraying water particles, that is, smoke shielding mist (step S117). The time for all evacuees to evacuate is set in advance with a timer or the like, and after the evacuation completion time has elapsed, a signal is transmitted from the timer after a lapse of a certain time (step S118). By receiving the signal after the elapse of the predetermined time, the stopper that stops the movement of the panels 31 to 36 is released (step S119). By starting the power source of the panels 31 to 36 together with the release of the stopper, the closing operation of the panels 31 to 36 is started again (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 elapse signal is output from the timer that has timed the 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). In addition, what is necessary is just to skip step S118-step S11D, when leaving the opening part 90 at the time of a fire end (it extinguishes fire), and continuing spraying a water particle from the spray nozzle 91 to this opening part 90. FIG. Further, as in step S62 of FIG. 6, when smoke is detected, that is, between step S111 and step S112, water particles are sprayed from the spray nozzle 91 to form a water mist curtain for smoke shielding. It may be. In this case, in order to form a 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 spray start time is not limited to the above-described embodiment, and can be arbitrarily set.
[0037]
FIG. 12 is a diagram showing some of the arrangement examples of how the fire prevention and smoke prevention section forming system shown in FIG. 9 is arranged on the building space. In FIG. 12 (A), two large fire preventions divided into the building space by arranging the fire prevention and smoke prevention section forming system shown in FIG. 9 in the middle part of the rectangular building space surrounded by the outer wall. The case where smoke-proof sections 121 and 122 are formed is shown. In this way, by using the fire prevention and smoke prevention compartment forming system of FIG. 9 for the area division of the large space, the openings formed between the panels can be freely evacuated to the non-fire space in addition to the direction of the end escape stairs. be able to.
[0038]
In FIG. 12 (B), the fire prevention and smoke prevention zone forming system shown in FIG. 9 is arranged in a building space such as a hospital or a nursing home where there are many evacuees who cannot secure a walking speed equivalent to that of a healthy person in an emergency. As a result, a case where fire prevention and smoke prevention sections 123 and 124 divided into right and left are formed in the building space is shown. The thing shown to FIG. 12 (B) equips the upper and lower ends with a several hospital room on drawing, and has core parts, such as a nurse center, so that it may be pinched | interposed into a hospital room. A spray nozzle 91 as shown in FIG. 9 is arranged on both surfaces of a panel which is a shielding member provided in the building, and water particles are sprayed from the spray nozzle on the non-fire side by a smoke detector or a heat detector to prevent fire, Ensures smoke and heat insulation performance. As a result, it is possible to perform horizontal evacuation without any obstacles for evacuees such as wheelchairs to evacuate.
[0039]
As described above, according to the second embodiment, a large space can be partitioned and an evacuation route can be secured. Since the spray time of mist can be shortened and the spray range can be reduced, the amount of water used can be reduced as compared with the case where mist is always sprayed. Since the large shielding member is temporarily stopped without closing at once, the closing operation of the shielding member can be informed to the evacuees, and safety at the time of closing can be maintained. A horizontal evacuation route can be secured and the safety of the refugee can be secured by the heat shielding property of the shielding member. Since the temporarily stopped opening portion does not have a stepped portion such as a partition on the floor surface portion, 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, it is possible to cope with a large number of people at the time of evacuation, and it is possible to install a fire prevention and smoke prevention section forming system regardless of the building use and the number of people.
[0040]
FIG. 13 and FIG. 14 show a modification of the system for forming a fire and smoke-proof section that leaves an opening until the end of the fire (extinguishes) as shown in FIGS. 9 and 10, and continues to spray water particles from the spray nozzle into this opening. It is a figure which shows an example. FIG. 13 is a view of the opening portion 102 of the fire / smoke / foam section forming system as viewed from the front, and FIG. 14 is a partial sectional view of the relationship between the spray nozzle and the gas discharge port as seen from the side. The fireproof and smokeproof compartment forming system according to this embodiment corresponds to the case where the panel as shown in FIG. 10 (B) is one-sided and the opening exists at the left end. As shown in the figure, there are spray nozzles 130 to 139 in the ceiling 25 above and behind the opening and at the positions facing the top and bottom of the ceiling 25 and the slab 20 below, respectively, and the gas discharge port 141 and the gas discharge port 142. It is what has. Smoke detectors (or heat detectors) 27 and 28 are provided in the vicinity of the fire prevention and smoke prevention section forming system.
[0041]
A gas discharge port 141 is provided on the lower surface of the ceiling 25 between the spray nozzles 130 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 a space between the ceiling 25 and the upper floor slab 23, a gas introduction duct 143 for introducing a cooling gas into the gas discharge port 141 is disposed. A gas discharge port 142 is provided on the upper surface of the floor slab 20 and below the gas discharge port 141. The gas discharge port 142 is provided with a slit-like gap such as a grating. In the lower space of the floor slab 20, gas exhaust dust 144 for exhausting the gas introduced into the gas exhaust port 142 is disposed. 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. The fact that the air flow is cut off also blocks the entry of smoke. Moreover, since the gas blown out from the gas discharge port 141 is a cooling gas, it also has a heat shielding function that blocks the transfer of heat on the fire side to the non-fire side combustible material.
[0042]
Assuming that a fire has occurred and the combustible material 145 is burning, the fire prevention and smoke prevention zone forming system automatically activates the panel which is a shielding member in response to a signal from the smoke detector (or heat detector) 27. The large opening is made into a small opening as shown in FIG. Then, the cooling gas is blown out from the gas discharge port 141 through the gas introduction duct 143 to form an air curtain 146. Then, the gas whose temperature has increased due to the fire is discharged to the outside through the gas discharge port 142 and the gas discharge duct 144. At the same time, water particles are sprayed from the spray nozzles 130 to 134 on the fire side, and a water mist curtain 147 is formed. As a result, the combustion smoke of the combustible material 145 is less likely to enter the non-fire side compartment on the opposite side through the opening, and the influence of the combustion heat of the combustible material 145 is also reduced on the non-fire side combustible material. It becomes difficult to convey. Note that air is generally used as the cooling gas blown out from the gas discharge port 141 at this time. For example, an inert gas such as carbon dioxide or a halogen gas is blown out according to the room use of the building. It may be. It should be noted that the inert gas, halogen gas, and the like may be configured to be supplied through a gas introduction duct 143 stored in a cylinder of another equipment room, It may be supplied from a cylinder installed below the floor slab 23 or below the slab 20. In addition, for the release of gas, a sensor system that detects the gas temperature is installed on the ceiling, pillar, wall surface, etc., and a control system that adjusts the amount of gas released so that the temperature of the discharged gas is below a predetermined level. It may be provided.
[0043]
The spray nozzles 130 to 139 are supplied with water of a predetermined pressure through water supply pipes 148 and 149. The water supply pipes 148 and 149 may supply water of a predetermined pressure supplied from a city water supply main pipe or the like to the spray nozzles 130 to 139 or may be pressurized by a pump, and an electromagnetic valve ( (Not shown). The electromagnetic valve controls on / off of water supply to the spray nozzles 130 to 139 in accordance with a control signal, and can appropriately adjust the spray amount of the water mist according to the length of the on time. Further, water stored in a storage tank of another equipment room may be supplied to the water supply pipes 148 and 149 by a pressure pump with a predetermined pressure, or the upper slab 23 on the upper part of the ceiling 25. A water storage tank may be installed at the lower part of the slab 20 or the lower part of the slab 20 and supplied from there. In this manner, water particles are continuously sprayed from the spray nozzles 130 to 139, and a layer of the water mist curtain 147 is formed on the front surface of the air curtain 146. At this time, since 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 drains, water does not leak from this fire prevention smoke prevention compartment to other compartments and downstairs. . Moreover, since the water particles sprayed from the spray nozzles 130 to 139 are water mist having a particle diameter of 40 to 400 microns, the water fine particles in the air are easily vaporized, and the radiant heat due to the fire can be effectively shielded by the vaporization. It becomes like this. In addition, since the oxygen concentration in the fireproof and smokeproof compartment decreases due to the vaporization of water fine particles, it functions to suppress ignition of combustible materials. About discharge | release or spraying of such water particles by an inert gas, halogen gas, and water mist, what is necessary is just to selectively install suitably according to the kind etc. of combustible material arrange | positioned in a building. As a result, it is possible to effectively prevent the spread of fire across the fire prevention section, and it is very effective because it is not necessary to open and close obstacles and doors even when people evacuate.
[0044]
Next, modified examples of the fire prevention and smoke prevention section 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 seen from the side. FIG. 15 is a diagram showing a schematic configuration of a fire-proof and smoke-proof zone forming system provided with double gas discharge ports, that is, air curtains. As is clear from the figure, gas discharge ports 151 and 152 are provided so as to sandwich the beam 24, and one gas discharge port 153 is provided on the floor slab 20 side so as to face the gas discharge ports 151 and 152. Yes. That is, on the lower surface of the ceiling 25, gas discharge ports 151 and 152 are provided between the spray nozzles 130 to 134 and the spray nozzles 135 to 139. The gas discharge ports 151 and 152 are each provided with a commutator for rectifying the discharged gas. In the space between the ceiling 25 and the upper floor slab 23, a gas introduction duct 154 for introducing a cooling gas into the gas discharge port 151 is disposed, and the cooling gas is also introduced into the gas discharge port 152. A gas introduction duct 155 is provided for this purpose. A gas discharge port 153 is provided on the upper surface of the floor slab 20 and below the gas discharge ports 151 and 152. The gas exhaust port 153 is provided with a gap such as a grating that is opened in a slit shape. In the lower space of the floor slab 20, gas exhaust dust 156 for exhausting the gas introduced into the gas exhaust port 153 is disposed. The gas discharge ports 151 and 152 and the gas discharge port 153 are arranged to face each other in the vertical direction, and the gas discharge port 153 has an opening having an area corresponding to the two gas discharge ports 151 and 152. It will be. Two gas discharge ports corresponding to the gas discharge ports 151 and 152 may be provided. As a result, double air curtains 157 and 158 are formed to block the flow of air from the left fire side to the right non-fire side, and smoke entry can be effectively blocked. . Moreover, since the gas blown out from the gas discharge ports 151 and 152 is a cooling gas, the heat shielding effect for blocking the transfer of heat on the fire side to the non-fire side combustibles is also doubled. Thus, by doubling the air curtain made of the cooling gas, the radiant heat from the combustible material 145 can be effectively shielded by the two air curtains 157 and 158. In addition, since it is not necessary to provide a door for evacuation or the like in the air curtain itself, the evacuation of the evacuees can be performed smoothly. In the embodiment of FIGS. 14 to 19, the case where water particles are sprayed from the spray nozzles 130 to 134 on the fire side has been described. However, the water particles from both the spray nozzles 130 to 139 on the fire side and the non-fire side are described. You may make it spray.
[0045]
FIG. 16 is a diagram showing a modification of FIG. In FIG. 16, the same components as those in FIG. 14 are denoted by the same reference numerals, and description thereof is omitted. 16 differs from that in FIG. 14 in that the gas exhaust port 142 and the gas exhaust dust 144 in FIG. 14 are omitted, and the gas blown out from the gas discharge port 141 is blown against the upper surface of the floor slab 20. It is. That is, in order to form the air curtain, a blowing-only method in which gas is blown out from the gas discharge port 141 is adopted.
[0046]
FIG. 17 is a diagram showing a modification of FIG. In FIG. 17, the same components as those in FIG. 15 are denoted by the same reference numerals, and description thereof is omitted. 17 differs from that of FIG. 15 in that the gas discharge port 153 and the gas discharge dust 156 in FIG. 15 are omitted, and the gas blown from the gas discharge ports 151 and 152 is blown onto the upper surface of the floor slab 20. This is the point. That is, in order to form an air curtain in the same manner as in FIG. 16, a blowing-only method in which gas is blown out from the gas discharge ports 151 and 152 is employed.
[0047]
FIG. 18 is a diagram showing a modification of FIG. In FIG. 18, the same components as those in FIG. 15 are denoted by the same reference numerals, and the description thereof is omitted. The thing of FIG. 18 differs from the thing of FIG. 15 in the point which provided the spray nozzles 180-184 in the substantially middle position between the gas discharge port 151 and the gas discharge port 152. FIG. In this way, by spraying water particles on the center of the double air curtain, the water mist curtain 185 can be formed between the double air curtains 157 and 158, so the heat shielding effect is greatly improved. To do. In addition, by arranging the spray nozzles 130 to 134, the spray nozzles 180 to 184, and the spray nozzles 135 to 139 in a staggered manner, the mist density of the water mist curtains 147 and 185 can be made uniform and the ceiling near the nozzles. 25 can be made as small as possible, and the effect as a water mist curtain can be improved. In FIG. 18, water particles are sprayed from the spray nozzles 130 to 134 on the fire side and the spray nozzles 180 to 184 at the center, but water particles are sprayed from all the spray nozzles 130 to 139 and 180 to 184. You may do it.
[0048]
FIG. 19 is a diagram showing a modification of FIG. In FIG. 19, since the same code | symbol is attached | subjected to the thing of the same structure as FIG. 18, the description is abbreviate | omitted. The thing of FIG. 19 differs from the thing of FIG. 18 in that the spray nozzles 180 to 184 are provided at approximately the middle position between the gas discharge port 151 and the gas discharge port 152, and the spray nozzles 130 to 139 on both sides are omitted. Is a point. Thus, by spraying water particles on 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. Does not cause damage caused by water damage. In the case of FIG. 19 as well, as shown in FIGS. 16 and 17, the gas discharge port and the gas discharge dust may be omitted, and the gas blown from the gas discharge ports 151 and 152 may be blown against the upper surface of the floor slab 20. .
[0049]
In the above-described embodiment, 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. You may make it discharge | release and spray a gas, water particles, etc. toward it. Further, a so-called blowout port that discharges and sprays gas and water particles from both the ceiling and the floor may be a two-way blowout type. This can reduce the variation in the blown-out gas by blowing out from both directions when the opening is large. Moreover, in the above-described embodiment, the case where the gas discharge port and the spray nozzle are provided on the ceiling side has been described. However, when columns are present on both sides of the opening, they may be provided on the side surfaces of the columns, You may provide in three directions, a ceiling and the side of a pillar, a ceiling, a floor, and the side of a pillar. As described above, when the gas discharge port and the spray nozzle are provided other than the ceiling, the discharge and spray directions of the gas and water particles are various from the bottom to the top and from the top to the bottom. Moreover, you may provide a gas discharge port and / or a nozzle in a column side surface and / or a floor surface. The gas discharge port is preferably provided on the floor surface side, but may be provided on the side surface of the column as long as it is near the floor surface.
[0050]
In the above-described embodiment, the panel that moves from the inside of the building by the horizontal pulling method at the time of the fire has been described as an example, but other than this, a shielding member for fire prevention is drawn out from the upper side by the lowering method or lifted. Even if it is paid out by a method, it can be similarly applied. For example, the present invention can be similarly applied to a device that uses a fire shutter device that shields the shutter member that is a shielding member while being lowered. In this case, what is necessary is just to install what used an air curtain and a water mist curtain there, without providing a fire shutter apparatus in a part of opening part. Further, in addition to the fire-proof shutter device, a shutter-like shielding member can be similarly applied even if it is extended by a horizontal pulling method, extended by a lifting method, or extended by a horizontal method. In addition to fire prevention purposes, it can also be applied to purposes such as smoke prevention, crime prevention, sun protection, rain protection, etc., depending on the installation location and surrounding environment, conditions, and various circumstances. Examples of the opening / closing device include a shutter device, a blind device, a roll screen device, and a curtain device. When the opening / closing device is a shutter device, the shielding member that is a shielding means is a shutter curtain, and the configuration is such that a slat curtain made of a large number of strip-shaped slat materials and a large number of pipe materials are connected by link materials. Pipe grill curtains, panel curtains made of single or multiple connected panel materials, net curtains made of net materials, sheet curtains made of synthetic resin or cloth fiber sheet materials, or composites made of these composite members This is due to curtains. The material of the shielding member that is the shielding means may be any material as long as it meets the purpose of use. Specifically, it can be made of metal, wood, plastic, cloth, or a composite of these. In the case of a switchgear installed for the purpose of fire prevention, it is preferable that the material of at least the shielding member as the shielding means has fire resistance.
[0051]
In the flow of FIG. 6 and FIG. 11, the case where the spray of water particles is maintained until the fire is extinguished has been described. However, the spray state of the water particles is appropriately controlled according to the detection signal from the smoke sensor or the heat sensor. You may do it. For example, spray on / off control may be performed in accordance with a heat detection signal or a smoke detection signal. In this case, as shown in FIG. 6, the water particles are controlled according to the smoke concentration and amount detected by the smoke detector in the same manner as various spray states of the water particles are controlled according to the temperature detected by the heat sensor. Various spray states may be controlled.
[0052]
【The invention's effect】
As described above, according to the fire prevention and smoke prevention compartment forming system of the present invention, when the fire prevention smoke prevention compartment is formed using one or a plurality of shielding members, each performance of fire prevention, smoke prevention and heat insulation is sufficiently satisfied. There is an effect that can be made.
[Brief description of the drawings]
FIG. 1 is a side view showing a schematic configuration of a conventional fire prevention and smoke prevention section forming system.
FIG. 2 is a front view showing a schematic configuration of the conventional fire-proof and smoke-proof zone forming system of FIG.
FIG. 3 is a diagram showing a schematic configuration and an operation example of a fire prevention and smoke prevention section forming system according to the present invention, and shows a state before and after the occurrence of a fire.
FIG. 4 is a diagram showing a schematic configuration and an operation example of a fire prevention and smoke prevention compartment forming system according to the present invention, and shows a state after a fire has occurred and after the formation of the fire prevention smoke prevention compartment.
FIG. 5 is a diagram showing the relationship between the temperature change of the shielding member and the spray state of the spray nozzle.
6 is a flowchart showing an example of the operation of the fire prevention and smoke prevention section forming system of FIGS. 3 and 4. FIG.
FIG. 7 is a diagram showing some of the arrangement examples of how the fire prevention and smoke prevention compartment forming system shown in FIGS. 3 and 4 is arranged on a building space.
FIG. 8 is another diagram showing some examples of the arrangement of the fire prevention and smoke prevention section forming system shown in FIGS. 3 and 4 in the building space.
FIG. 9 is a diagram showing a schematic configuration and an operation example of a fire prevention and smoke prevention section forming system according to a second embodiment of the present invention.
FIG. 10 is a diagram 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.
FIG. 11 is a flowchart showing an example of the operation of the fire prevention and smoke prevention section forming system of FIG.
FIG. 12 is a diagram showing some examples of how the fire prevention and smoke prevention compartment forming system shown in FIG. 9 is arranged on a building space.
FIG. 13 is a diagram showing the configuration of a fire and smoke-proof zone forming system in which an opening is left until the end of the fire (extinguishes) and water particles are continuously sprayed from the spray nozzle to the opening. View of the system from the front of the opening
FIG. 14 is a diagram showing a configuration of a fire-proof and smoke-proof zone forming system in which an opening is left until the end of a fire (extinguishes) and water particles are continuously sprayed from the spray nozzle to the opening; Partial sectional view of the relationship with the
FIG. 15 is a diagram showing a schematic configuration of a fire prevention and smoke prevention section forming system provided with double gas discharge ports, that is, air curtains.
FIG. 16 is a diagram showing a modification of FIG.
FIG. 17 is a view showing a modification of FIG.
18 is a view showing a modification of FIG.
FIG. 19 is a diagram showing a modification of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11, 12, 11a ... Bracket, 13, 13a ... Winding shaft, 14, 14a ... Slat curtain, 15, 16 ... Guide rail, 20 ... Slab, 21 ... Pillar, 23 ... Upper floor slab, 24 ... Beam, 25 ... Ceiling, 26 ... lintel, 27, 28 ... smoke detector (or heat detector), 30, 90, 100, 102 ... opening, 31-36 ... panel, 37, 38 ... door pocket, 41-44, 91, 101, 103, 130 to 139, 180 to 184 ... spray nozzles, 71 to 76, 121 to 124 ... fire and smoke-proof sections, 141, 151, 152 ... gas discharge ports, 142, 153 ... gas discharge ports, 143, 154 155 ... Gas introduction duct, 144, 156 ... Gas exhaust duct, 145 ... Combustible material (product), 146, 157, 158 ... Air curtain, 147, 185 ... Water mist curtain 148, 149 ... water supply pipe

Claims (5)

When partitioning the space in the building by extending the shielding member into the building, the movement of the shielding member is temporarily stopped so that it is between the shielding members or between the end of the shielding member and the wall surface of the building. Partition forming means for forming a plurality of sections in the building by forming an opening in the building and closing the opening after a lapse of a certain time after the stop;
At least one of the performance of fire prevention, smoke prevention and heat insulation is a part lower than the other part of the partition forming means, and a relatively small amount is provided in the opening which becomes an open part until the shielding member is fully closed. And a first supply means for continuing to supply water spray from nozzle means provided on the ceiling of the building and stopping the spray supply when the shielding member is fully closed. Fire / smoke-proof compartment formation system.   2. The fire prevention and smoke prevention division forming system according to claim 1, wherein the division formation means forms a predetermined division in the building by feeding out one or a plurality of panel members into the building. Smoke-proof compartment forming system.   3. The fire / smoke / smoke compartment forming system according to claim 1 or 2, wherein the shielding member includes an evacuation port capable of evacuating to another zone.   4. The fire / smoke / smoke compartment forming system according to claim 1, wherein the shielding member is drawn out by a horizontal pulling method to close the opening. 5.   5. The fire prevention and smoke prevention section forming system according to claim 1, wherein the first supply means sprays when the non-fire side surface temperature of the shielding member reaches a preset temperature. Fire prevention and smoke prevention compartment formation system characterized by starting.

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