GB2198638A - Confining combustion products in a building structure - Google Patents
Confining combustion products in a building structure Download PDFInfo
- Publication number
- GB2198638A GB2198638A GB08710308A GB8710308A GB2198638A GB 2198638 A GB2198638 A GB 2198638A GB 08710308 A GB08710308 A GB 08710308A GB 8710308 A GB8710308 A GB 8710308A GB 2198638 A GB2198638 A GB 2198638A
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- GB
- United Kingdom
- Prior art keywords
- building structure
- partitioning
- combustion products
- spread
- products
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 54
- 238000000638 solvent extraction Methods 0.000 claims abstract description 58
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 239000003063 flame retardant Substances 0.000 claims abstract description 20
- 230000004044 response Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000013022 venting Methods 0.000 claims description 15
- 239000000779 smoke Substances 0.000 claims description 14
- 230000002401 inhibitory effect Effects 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 230000003134 recirculating effect Effects 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000691979 Halcyon Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/002—Fire prevention, containment or extinguishing specially adapted for particular objects or places for warehouses, storage areas or other installations for storing goods
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
- A62C2/10—Fire-proof curtains
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Operations Research (AREA)
- Building Environments (AREA)
Abstract
Combustion products are detected by appropriate strategically positioned sensors (18) within a building structure. Fire retardant partitioning, preferably in the form of roller blinds (13), is released in response to such detection to enclose the particular part of the interior of the building structure where the conflagration occurs to inhibit the spread of combustion products throughout the building structure. Preferably vent means (17), associated with the locally confined area, are then opened to pass the combustion products to the ambient atmosphere, and then a dousing fluid is introduced into the locally confined area. <IMAGE>
Description
CONFINING COMBUSTION PRODUCTS IN A BUILDING STRUCTURE
The present invention relates to the confinement of the products of a conflagration within a building structure, with particular, but not exclusive, relevance to warehouse storage of combustible materials and/or goods.
Such goods are preferably stacked to an appropriate height in lanes between which mechanical stacking machinery and personnel can have free access. In the event of ignition it is desirable to confine combustion to as small an area as possible so as to encourage natural vertical control of the combustion products, such as flames and toxic smoke, to inhibit the spread of fire by horizontal convection currents. It is also desirable to be able to discharge the combustion products through the roof to the ambient atmosphere.
Moreover, in multi-storey building structures, there is a danger that the windows on the level where combustion is initiated, may burst open under the heat and pressure imposed thereon to allow flames and toxic smoke to attack the windows of the storey immediately above. These combustion products can then re-enter the building structure at that level thereby spreading the conflagration within the building structure.
According to the invention, there is provided a system for inhibiting the spread of combustion products in a building structure, comprising at least one fire retardant partitioning means adapted to be stowed at an upper part of the building structure, or of a storey thereof, and control means for maintaining said partitioning means stowed as aforesaid, said control means being responsive to the presence of combustion products to release said partitioning means so that it extends downwardly towards a floor of the building structure to provide a generally vertical fire-retardant barrier.
Said partitioning means may be adapted to fall under gravity when released by said control means, and may be in the form of a flexible sheet of fire-retardant material, e.g. glass fibre cloth. The flexible sheet is advantageously stowed in a compact condition at said upper
art of the building structure. A lower edge of the sheet may be weighted to assist deployment of the sheet under gravity when released by said control means. In a preferred embodiment, said partitioning means may be in the form of a roller blind assembly with the rollers having a release mechanism actuated when said control means sense the presence of combustion.
Said control means may include temperature sensitive means and/or smoke detecting means for sensing the presence of combustion. The temperature sensitive means may, for example, be in the form of a heat fusible link which may control the aforesaid release mechanism of the roller blind assembly.
Said partitioning means, or a plurality of such means, may be positioned to cover the windows at one or more levels of a multi-storey building structure, when combustion is detected, to inhibit the spread of fire from one level to the level above. Alternatively or additionally, a plurality of said partitioning means may be provided to define, when lowered, enclosed areas within the building structure to confine a conflagration in a respective enclosed area and thereby inhibit the spread of fire by horizontal convection currents. For example partitioning means may be positioned along passageways defined between lanes of stacked goods in a warehouse.Respective control means associated with a plurality of partitioning means may be connected in a control system which is adapted to identify the location of a conflagration in the building structure and to cause a selected group of the partitioning means to be lowered to floor level so as to completely enclose the conflagration within a locally confined area of the building structure.
Preferably vent means are provided in the roof of the building structure at positions associated with each area able to be enclosed by said partitioning means in order to permit combustion products to be passed from the enclosed area to the outside atmosphere. Said vent means may be controlled by said control system to be opened in accordance with the lowering of said selected group of partitioning means. Alternatively or additionally, each vent means may be controlled separately by a release mechanism having its own control responsive to combustion products, which may include temperature sensitive means, e.g. a heat fusible link, and/or strategically placed smoke detecting means.
A system according to the invention may include means for recirculating warm air from an upper region of the building structure including ducting extending between such regions and means for causing a flow of warm air therethrough to a lower colder region thereof. In some embodiments the aforesaid vent means may communicate with said ducting through valve means adapted to allow unrestricted flow through the ducting whilst closing the vent means, in one position of the valve means; and to allow flow from an inlet portion of the ducting to the vent means whilst preventing recirculation to said lower colder region of the building structure, in another position of the valve means.
A system according to the invention may further include means for supplying a dousing fluid, either liquid or gaseous, to a region of said building structure enclosed by said partitioning means, when released.
In systems according to the invention including means for recirculating hot air and for supplying dousing fluid, control means for releasing said partitioning means, for opening said vent means and for actuating said dousing fluid supply means may be controlled to effect operation thereof, when combustion products are detected, in the following sequence: release of the partitioning means, followed by opening of said vent means, followed by the supply of dousing fluid.
In some arrangements in accordance with the invention at least one vent means and at least one dousing fluid supply means may be provided in each of the regions of the building structure which provide said locally confined areas thereof when enclosed by the associated partitioning means, when released.
The invention also provides a method of inhibiting the spread of combustion products in a building structure, comprising detecting the presence of such products within the building structure, and, in response thereto, releasing fire-retardant means for partitioning the interior of the building structure so as to enclose such products within a locally confined area of the building structure to inhibit the spread of such products throughout the building structure.
A method according to the invention may include venting to ambient atmosphere of said locally confined area of the building structure when combustion products are detected therein.
A method according to the invention may further include introducing dousing fluid into said locally confined area of the building structure, when combustion products are detected therein.
A method according to the invention may include providing means for detecting the presence of combustion products in a plurality of regions within the building structure and, when such products are detected in any one of those regions, releasing fire retardant partitioning means associated with the respective region or regions to enclose such region or regions to inhibit the spread of such products throughout the building structure.
In methods according to the invention including venting a locally confined area and introducing dousing fluid thereinto, said partitioning means may be released prior to venting of the, or the respective, locally confined area, which takes place prior to the introduction of dousing fluid thereinto.
Embodiments of the invention will now be described by way of example and with reference to the accompanying drawings, in which:
Figure 1 is a diagrammatic representation of a warehouse provided with a system according to the invention for confining the spread of a conflagration throughout the
warehouse;
Figure 2 is a diagrammatic representation of a venting device of the system incorporated in a hot air recirculation which can be provided in the warehouse;
Figure 3 is a diagrammatic representation of a warehouse roof section illustrating the installation of a system according to the invention;
Figure 4 is a diagrammatic sectional representation of a releasable roller blind assembly for use in a system according to the invention; and,
Figure 5 is a diagrammatic sectional representation of another form of hot air circulation system.
Referring to Figure 1, there is shown a warehouse 10 in which goods are stacked to an appropriate height in parallel lanes 11. Passageways 12 are defined between the lanes 11 for providing access to the goods.
Along a selected number of the passageways 12, roller blind assemblies 13 are secured to corresponding support beams 14 of the roof structure. The assemblies 1,3 comprise sheets of fire-retardant material, e.g. glass fibre cloth, wound on rollers. The rollers are provided with releasable latching mechanisms which, when released, allow the blinds to fall under gravity to floor level. The lower edge of each blind is suitably weighted to ensure deployment of the blind when the associated roller latching mechanism is released. The roller latching mechanism may include a heat fusible link to provide a temperature sensitive release mechanism of the blind. Alternatively or additionally, the latching mechanism may be controlled by signals received from one or more strategically places smoke detectors.
The release mechanisms of the roller blinds are preferably controlled by an electronic control system 15 which identifies from signals from heat and/or smoke detectors 18 located in respective areas of the warehouse, the location of a conflagration, and causes the actuation of the release mechanisms of selected roller blind mechanisms so as to enclose the area of the conflagration to inhibit the spread thereof throughout the warehouse. The passageways 12 between the lanes of goods may be intersected by further transverse passageways and further roller blind assemblies 14 may be provided along those transverse passageways thereby further subdividing a large warehouse into areas which can be enclosed as required.
In multi-storey building structures, roller blind assemblies 13, as described above, may be provided along the peripheral walls at each storey in order to shield the windows therein from heat and pressure produced when a conflagration occurs, which could result in bursting open of the windows allowing flames and toxic smoke to attack the windows of the storey above and to re-enter the building at that level thereby spreading the conflagration.
The dousing of a conflagration is generally effected by a sprinkler system which, when activated, sprinkles water throughout the interior of the building structure, whereby valuable goods and equipment which are not in immediate danger of being affected by the conflagration are doused and consequently often damaged more seriously than any fire damage. The present embodiment provides one or more sprinkler supply heads 50 in each region which can be enclosed by the roller blind assemblies 13. The control of the sprinklers have controls which can be activated independently for each enclosed region of the building structure. The control of the sprinklers is preferably integrated into the control system 15 so that activation of the sprinklers for a particular enclosed area is effected in accordance with the lowering of the roller blind assemblies 13 to enclose that area.Instead of a water sprinkler system, the dousing fluid supplied through heads 50 may be a gas, e.g. a Halcyon or CO2 gaseous dousing system.
The warehouse 10 is preferably also provided with a venting system 17 for discharging combustion products directly to the surrounding atmosphere. Such a venting system is provided in each roof section of the warehouse corresponding to a respective area of the warehouse which can be enclosed by the roller blind assemblies 13. The sloping roof sections are preferably internally lined with a fire retardant cladding 16 which provides at least a 4 hour fire delay in order to protect the integrity and stability of the roof structure.
The venting system 17 may advantageously form part of a hot air recirculation system 17 for the building, as described and claimed in my British Patent Specification No.
2,138,934. Fig. 2 illustrates a hot air recirculation system which incorporates the venting system and comprises a duct positioned along the apex of a pitched roof section of the building. The duct 20 has apertures 22 in its lower side covered by grilles 23 to admit hot air into the duct. A fan 21 at an open end of the duct 20 passes a flow of hot air along the duct thereby inducing further hot 'air into the duct through apertures 22. The hot air is recirculated to a lower part of the building through a vertically extending duct 27. In other embodiments the duct 20 may be imperforate with air-Intake being solely through the open end of the duct.
The ducts 20 and 27 are connected by a generally cruciform joining section 24 having a pair of horizontal limbs, one being connected to the duct 10 and the other being closed by a plate 25. The downwardly extending limb 26 of the section 24 is connected to the duct 27 and the upwardly extending limb 28 extends through the roof section to provide a vent to atmosphere.
The direction of flow through the joining section 24 is controlled by a pivotally mounted flap valve 29 which is normally held in a horizontal position, shown in solid lines in Fig. 2. When released the flap valve 29 drops under gravity to the position shown in dotted lines to divert gaseous, and other, combustion product to ambient atmosphere. The flap valve 19 is held in its horizontal position (solid line in Fig. 2) by a releasable latching device, e.g. a latching member associated with a solenoid, which is engagable with the free end of the flap valve. A smoke detector 30 located in the duct 20, when it senses smoke in the duct, generates a signal to release the latching mechanism holding the flap valve 29 which drops so as to divert the combustion products outside the building.
The venting system 17 comprising vent duct 28 and flap valve 29 controlled by smoke detector 30 could be provided alone without the hot air recirculating system provided by ducts 20 and 27 as illustrated in Figure 1.
A separate hot air circulation system can be provided in selected areas which can be enclosed by the roller blind assemblies, as required. Such a system could be provided by a device as described in British Patent Application 8627321 and as illustrated in Figure 5. The device comprises a tubular housing 40 containing a motorised fan unit 41. The housing 40 is suspended, for example, from a roof beam 42 and has a flexible Nylon tube 43 extending downwardly therefrom to direct warm air induced into the upper end of the housing, to lower colder regions of the interior of the building.
Reference should be made to British Patent No.
2,138,934 and British Patent Application No. 8627321 for further details of the hot air recirculation systems, the disclosures of which are incorporated herein by reference.
More preferably the control of the flap valve of the venting system is integrated into the control system 15 in which case separate smoke detectors 30 for controlling the flap valve 29 are not required. This integrated control system operates, on receiving a signal from a heat and/or smoke detector 18 in a particular region of the building structure, to actuate the roller blind assemblies 13 associated with that area to enclose the area; to open the venting system 17 for that area and then to actuate the dousing fluid supply means associated with that area, in that particular sequence. In this way confinement of the conflagration will be a compartment by compartment process to delay the spread of fire products and damage of stored goods and equipment until the fire is extinguished by fire fighters.
Figures 3 and 4 illustrate one embodiment of a roller blind assembly 13 incorporating a release mechanism 30. The curtain 31 is stored in a housing 32 attached to the underside of a guttering 33 of the roof structure. The curtain 31 is wound around a roller 34 located in the housing 32 and has a free edge section 35 which projects through a slit or other suitably shaped aperture in the bottom wall of the housing. A weighted element 36 is attached to the projecting portion of the free edge section 35 of the curtain and is formed with an aperture 37. A solenoid release mechanism 30 is attached to a side wall of the curtain housing 32 to project downwardly thereof so as to enable a solenoid release pin 38 thereof in the aforesaid aperture 37 to maintain the curtain 31 in its stowed, furled condition within the housing 32. When the solenoid of mechanism 30 is actuated by a signal from a heat and/or snoke detector within the warehouse, the pin 38 is withdrawn from the aperture 37 allowing the curtain 31 to be deployed by gravity.
Claims (25)
1. A system for inhibiting the spread of combustion products in a building structure, comprising at least one fire retardant partitioning means adapted to be stowed at an upper part of the building structure, or of a storey thereof, and control means for maintaining said partitioning means stowed as aforesaid, said control means being responsive to the presence of combustion products to release said partitioning means so that it extends downwardly towards a floor of the building structure to provide a generally vertical fire-retardant barrier.
2. A system as claimed in Claim 1 wherein said partitioning means is adapted to fall under gravity when released by said control means.
3. A system as claimed in Claim 1 or Claim 2 wherein said partitioning means comprises a flexible sheet of fire-retardant material.
4. A system as claimed in Claim 3 wherein the flexible sheet is stowed in a compact condition at said upper part of the building structure, before release by said control means.
5. A system as claimed in Claim 2 or Claim 3 wherein a lower edge of the sheet is weighted to assist deployment of the sheet under gravity when released by said control means.
6. A system as claimed in any of Claims 3 - 5, wherein said partitioning means is in the form of a roller blind assembly with the rollers having a release mechanism actuated when said control means sense the presence of combustion.
7. A system as claimed in any preceding claim wherein said control means include temperature sensitive means and/or smoke detecting means for sensing the presence of combustion.
8. A system as claimed in Claim 7 wherein the temperature sensitive means is in the form of a heat fusible link.
9. A system as claimed in any preceding claim, wherein said partitioning means, or a plurality of such means, is positioned to cover the windows at one or more levels of a multi-storey building structure, when combustion is detected, to inhibit the spread of fire from one level to the level above.
10. A system as claimed in any preceding claim wherein a plurality of said partitioning means is provided to define, when lowered, enclosed areas within the building structure to confine a conflagration in a respective enclosed area and thereby inhibit the spread of fire by horizontal convection currents.
11. A system as claimed in Claim 10 wherein respective control means associated with a plurality of partitioning means are connected in a control system which is adapted to identify the location of a conflagration in the building structure and to cause a selected group of the partitioning means to be lowered to floor level so as to completely enclose the conflagration within a locally confined area of the building structure.
12. A system according to any preceding claim wherein vent means are provided in the roof of the building structure at positions associated with each internal area of the building structure able to be enclosed by said partitioning means or a plurality thereof in order to permit combustion products to be passed from the enclosed area to the outside atmosphere.
13. 13. A system according to Claim 12 wherein said vent means are controlled by said control system to be opened in accordance with the lowering of said selected group of partitioning means.
14. A system according to Claim 12 wherein each vent means is controlled by a release mechanism having its own control responsive to combustion products.
15. A system according to any preceding claim, including means for recirculating warm air from an upper region of the building structure including ducting extending between such regions and means for causing a flow of warm air therethrough to a lower colder region thereof.
16. A system according to Claims 13 and 15 wherein said vent means communicate with said ducting through valve means adapted to allow unrestricted flow through the ducting whilst closing the vent means, in one position of the valve means; and to allow flow from an inlet portion of the ducting to the vent means whilst preventing recirculation to said lower colder region of the building structure, in another position of the valve means.
17. A system according to any preceding claim including means for supplying a dousing fluid to a region of said building structure enclosed by said partitioning means, when released.
18. A system according to any one of Claims 12, 13 and 16, and Claim 17, wherein control means for releasing said partitioning means, for opening said vent means and for actuating said dousing fluid supply means are controlled to effect operation thereof, when combustion products are detected, in the following sequence: release of the partitioning means, followed by opening of said vent means, followed by the supply of dousing fluid.
19. A system according to Claims 11 and 18, wherein at least one vent means and at least one dousing fluid supply means are provided in each of the regions of the building structure which provide said locally confined areas thereof when enclosed by the associated partitioning means, when released.
20. A system for inhibiting the spread of combustion products in a building structure; the system being substantially as herei nbefore described with reference to the accompanying drawings.
21. A method of inhibiting the spread of combustion products in a building structure, comprising detecting the presence of such products within the building structure, and, in response thereto, releasing fire-retardant means for partitioning the interior of the building structure so as to enclose such products within a locally confined area of the building structure to inhibit the spread of such products throughout the building structure.
22. A method according to Claim 21 including venting to ambient atmosphere said locally confined area of the building structure when combustion products are detected therein.
23. A method according to Claim 21 or Claim 22 including introducing dousing fluid into said locally confined area of the building structure, when combustion products are detected therein.
24. A method according to any one of Claims 21 - 23, including providing means for detecting the presence of combustion products in a plurality of regions within the building structure and, when such products are detected in any one of those regions, releasing fire retardant Dartitioning means associated with the respective region or regions to enclose such region or regions to inhibit the spread of such products throughout the building structure.
25. A method of inhibiting the spread of combustion products in a building structure, the method being substantially as hereinbefore described with reference to the accompanying drawings.
25. A method according to Claims 21, 22 and 23, or
Claims 22, 23 and 24, wherein said partitioning means are released prior to venting of the, or the respective, locally confined area, which takes place prior to the introduction of dousing fluid thereinto.
26. A method of inhibiting the spread of combustion products in a building structure, the method being substantially as hereinbefore described with reference to the accompanying drawings.
Amendments to the claims
have been filed as follows
CLAIMS
1. A system for inhibiting the spread of combustion products in a building structure, comprising:
at least one fire retardant partitioning means adapted to be stowed at an upper part of the building structure, or of a storey thereof;
means for maintaining said partitioning means stowed as aforesaid;
vent means provided in the roof of the building structure at positions associated with each internal area of the building structure able to be enclosed by said partitioning means or a plurality thereof in order to permit combustion products to be passed from the enclosed area to the outside atmosphere; and
control means responsive to the presence of combustion products to release said partitioning means so that it extends downwardly towards a floor of the building structure to provide a generally vertical fire-retardant barrier, and to open said vent means associated with an area enclosed by said partitioning means in which combustion is present.
2. A system as claimed in Claim 1 including means for supplying a dousing fluid to said area enclosed by said partitioning means, said control means being adapted to actuate said dousing fluid supply means when said partitioning means have been released.
3. A system as claimed in Claim 1 or Claim 2 wherein said building structure has a fire retardant roof structure.
4. A system as claimed in any preceding Claim wherein said partitioning means is adapted to fall under gravity when released by said control means.
5. A system as claimed in any preceding Claim wherein said partitioning means comprises a flexible sheet of fire-retardant material.
6. A system as claimed in Claim 5 wherein the flexible sheet is stowed in a compact condition at said upper part of the building structure, before release by said control means.
7. A system as claimed in Claim 4 or Claim 5 wherein a lower edge of the sheet is weighted to assist deployment of the sheet under gravity when released by said control means.
8. A system as claimed in any preceding Claim wherein said partitioning means is in the form of a roller blind assembly with the rollers having a release mechanism actuated when said control means sense the presence of combustion.
9. A system as claimed in any preceding Claim wherein said control means include temperature sensitive means and/or smoke detecting means for sensing the presence of combustion.
10. A system as claimed in Claim 9 wherein the temperature sensitive means is in the form of a heat fusible link.
11. A system as claimed in any preceding Claim wherein said partitioning means, or a plurality of such means, is positioned to cover the windows at one or more levels of a multi-storey building structure, when combustion is detected, to inhibit the spread of fire from one level to the level above.
12. A system as claimed in any preceding Claim wherein a plurality of said partitioning means is provided to define, when lowered, enclosed areas within the building structure to confine a conflagration in a respective enclosed area and thereby inhibit the spread of fire by horizontal convection currents.
13. A system as claimed in Claim 12 wherein respective control means associated with a plurality of partitioning means are connected in a control system which is adapted to identify the location of a conflagration in the building structure and to cause .a selected group of the partitioning means to be lowered to floor level so as to completely enclose the conflagration within a locally confined area of the building structure.
14. A system according to any preceding Claim wherein each vent means is controlled by a release mechanism having its own control responsive to combustion products.
15. A system according to any preceding Claim, including means for recirculating warm air from an upper region of the building structure including ducting extending between such regions and means for causing a flow of warm air therethrough to a lower colder region thereof.
16. A system according to Claim 15 wherein said vent means communicate with said ducting through valve means adapted to allow unrestricted flow through the ducting whilst closing the vent means, in one position of the valve means; and to allow flow from an inlet portion of the ducting to the vent means whilst preventing recirculation to said lower colder region of the building structure, in another position of the valve means.
17. A system according to Claim 1 or Claim 2 and any one of Claims 3 to 16, wherein control means for releasing said partitioning means, for opening said vent means and for actuating said dousing fluid supply means are controlled to effect operation thereof, when combustion products are detected, in the following sequence: release of the partitioning means, followed by opening of said vent means, and the supply of dousing fluid.
18. A system according to Claims 13 and 17 wherein at lease one vent means and at least one dousing fluid supply means are provided in each of the regions of the building structure which provide said locally confined areas thereof when enclosed by the associated partitioning means, when released.
19. A system for inhibiting the spread of combustion products in a building structure; the system being substantially as hereinbefore described with reference to the accompanying drawings.
20. A method of inhibiting the spread of combustion products in a building structure, comprising detecting the presence of such products within the building structure, and, in response thereto, releasing fire-retardant means for partitioning the interior of the building structure so as to enclose such products within a locally confined area of the building structure and venting to ambient atmosphere said locally confined area of the building structure when combustion products are detected therein, to inhibit the spread of such products throughout the building structure.
21. A method according to Claim 20 including introducing dousing fluid into said locally confined area of the building structure, when combustion products are detected therein.
22. A method according to Claim 20 or Claim 21, including providing a fire retardant roofing of said building structure.
23. A method according to Claim 20 or Claim 21, including providing means for detecting the presence of combustion products in a plurality of regions within the building structure and, when such products are detected in any one of those regions, releasing fire retardant partitioning means associated with the respective region or regions to enclose such region or regions to inhibit the spread of such products throughout the building structure.
24. A method according to Claim 20 and Claim 21, wherein said partitioning means are released prior to venting of the, or the respective, locally confined area, and prior to the introduction of dousing fluid thereinto.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB868630423A GB8630423D0 (en) | 1986-12-19 | 1986-12-19 | Confining combustion products in building structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8710308D0 GB8710308D0 (en) | 1987-06-03 |
| GB2198638A true GB2198638A (en) | 1988-06-22 |
Family
ID=10609309
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB868630423A Pending GB8630423D0 (en) | 1986-12-19 | 1986-12-19 | Confining combustion products in building structure |
| GB08710308A Pending GB2198638A (en) | 1986-12-19 | 1987-04-30 | Confining combustion products in a building structure |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB868630423A Pending GB8630423D0 (en) | 1986-12-19 | 1986-12-19 | Confining combustion products in building structure |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8630423D0 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990000422A1 (en) * | 1988-07-05 | 1990-01-25 | Zapspar Ltd. | Fire/water shield apparatus for valuable articles |
| GB2269097A (en) * | 1992-07-23 | 1994-02-02 | Environmental Seals Ltd | A fire barrier |
| EP0595729A1 (en) * | 1992-10-29 | 1994-05-04 | France Air S.A. | Thermic retarder for a ventilating device for fire-protection |
| WO1999008753A1 (en) * | 1997-08-15 | 1999-02-25 | Cold Cut Systems Svenska Ab | Method and equipment for use in rescue service |
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| GB1238895A (en) * | 1967-06-02 | 1971-07-14 | ||
| GB1397612A (en) * | 1972-03-28 | 1975-06-11 | Kg Smoke Dispersal Ltd | Fire safety systems |
| GB1397611A (en) * | 1972-03-28 | 1975-06-11 | Kg Smoke Dispersal Ltd | Fire safety systems |
| GB1439865A (en) * | 1972-08-03 | 1976-06-16 | Husson J H | Apparatus for partitioning premises in the event of fire |
| GB1492003A (en) * | 1975-02-14 | 1977-11-16 | Hattori T | Flame and smoke containment system |
| GB2103483A (en) * | 1981-08-18 | 1983-02-23 | George Alfret Forbes | A system for inhibiting the spread of fire in a building structure |
| GB2107982A (en) * | 1981-06-01 | 1983-05-11 | George Alfred Forbes | A system for inhibiting the spread of fire in a building structure |
| GB2108839A (en) * | 1981-10-13 | 1983-05-25 | Andrew Paul Cooper | Fire screens or curtains |
-
1986
- 1986-12-19 GB GB868630423A patent/GB8630423D0/en active Pending
-
1987
- 1987-04-30 GB GB08710308A patent/GB2198638A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1238895A (en) * | 1967-06-02 | 1971-07-14 | ||
| GB1397612A (en) * | 1972-03-28 | 1975-06-11 | Kg Smoke Dispersal Ltd | Fire safety systems |
| GB1397611A (en) * | 1972-03-28 | 1975-06-11 | Kg Smoke Dispersal Ltd | Fire safety systems |
| GB1439865A (en) * | 1972-08-03 | 1976-06-16 | Husson J H | Apparatus for partitioning premises in the event of fire |
| GB1492003A (en) * | 1975-02-14 | 1977-11-16 | Hattori T | Flame and smoke containment system |
| GB2107982A (en) * | 1981-06-01 | 1983-05-11 | George Alfred Forbes | A system for inhibiting the spread of fire in a building structure |
| GB2103483A (en) * | 1981-08-18 | 1983-02-23 | George Alfret Forbes | A system for inhibiting the spread of fire in a building structure |
| GB2108839A (en) * | 1981-10-13 | 1983-05-25 | Andrew Paul Cooper | Fire screens or curtains |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990000422A1 (en) * | 1988-07-05 | 1990-01-25 | Zapspar Ltd. | Fire/water shield apparatus for valuable articles |
| GB2269097A (en) * | 1992-07-23 | 1994-02-02 | Environmental Seals Ltd | A fire barrier |
| GB2269097B (en) * | 1992-07-23 | 1996-05-01 | Environmental Seals Ltd | Improvements in or relating to fire barriers |
| EP0595729A1 (en) * | 1992-10-29 | 1994-05-04 | France Air S.A. | Thermic retarder for a ventilating device for fire-protection |
| FR2697435A1 (en) * | 1992-10-29 | 1994-05-06 | France Air | Thermal retarder for ventilation apparatus for fire protection. |
| WO1999008753A1 (en) * | 1997-08-15 | 1999-02-25 | Cold Cut Systems Svenska Ab | Method and equipment for use in rescue service |
| US6340060B1 (en) | 1997-08-15 | 2002-01-22 | Cold Cut Systems Svenska A.B. | Method and equipment for use in rescue service |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8630423D0 (en) | 1987-01-28 |
| GB8710308D0 (en) | 1987-06-03 |
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