EP-4739401-A1 - SMOKE EXTRACTION AND TREATMENT DEVICE AND SYSTEM

Abstract

The present invention relates to a smoke extraction and treatment device (100) and system (10). The device (100) is configured to be attached to a ceiling, and comprises a housing (110) with an internal chamber, filtering means (120) and ventilation means (120). The device (100) further comprises communication means (140) with an external trigger, the communication means (140) being configured to receive, via a wired connection, information representative of the activation of the device (100) and to control the ventilation means (130) according to the information representative of the activation.

Inventors

• AITALI, Mustapha
• BOUNAB, Abde Salame

Assignees

• Aeraulique Technologie Innovative

Dates

Publication Date

20260513

Application Date

20230704

Claims (20)

1. 1. Smoke extraction and fume treatment device (100) comprising: - a housing (110); - filtration means (120) associated with said housing (110); - ventilation means (130) configured to drive said fumes through said filtration means (120), wherein said housing (110) comprises an internal chamber having at least one upstream inlet (111) and at least one downstream outlet (112), said filtration means (120) being arranged along said downstream outlet (112), said ventilation means (130) being arranged upstream of said filtration means (120) and being configured to pressurize said internal chamber to a pressure greater than said downstream outlet (112), said device (100) being configured to be fixed to a ceiling, characterized in that said device (100) further comprises communication means (140) with a trigger external to said device (100), said communication means (140) being configured to receive by wire information representative of activation of said smoke extraction device (100) and to control said ventilation means (130) based on said activation representative information.
2. 2. Device (100) according to claim 1, which further comprises lighting means (150).
3. 3. Device (100) according to claim 2, wherein said lighting means (150) are configured to illuminate an area corresponding to an area of effect (151) of said device (100).
4. 4. Device (100) according to claim 2 or 3, wherein said communication means (140) are configured to control said lighting means (150) as a function of said information representing activation.
5. 5. Device (100) according to one of claims 1 to 4, in which said housing (110) is made of a non-combustible material or of a non-flammable material.
6. 6. Device (100) according to one of claims 1 to 5, wherein said ventilation means (130) comprise at least one fan.
7. 7. Device (100) according to claim 6, wherein said ventilation means (130) comprise exactly two fans.
8. 8. Device (100) according to one of claims 1 to 7, which further comprises a battery system (160) configured to ensure operation of said device (100) for a duration of between 20 minutes and 100 minutes.
9. 9. Device (100) according to claim 8, wherein said battery system (160) is configured to ensure operation of said device (100) for a duration of between 20 minutes and 60 minutes.
10. 10. Device (100) according to one of claims 1 to 9, which further comprises a smoke detector (170) and integrated triggering means configured to control said ventilation means (130) as a function of said smoke detector (170).
11. 11. Device (100) according to one of claims 1 to 10, which further comprises at least one audible alarm.
12. 12. Device (100) according to one of claims 1 to 11, which is configured to be fixed on said ceiling so that said upstream inlet (111) is arranged along a side wall of said housing (110) and said downstream outlet (112) is arranged along a lower wall (114) of said housing (110).
13. 13. Device (100) according to claim 12, which comprises at least one suction opening provided along a side wall of said housing (110) and forming said upstream inlet (111), said at least one suction opening opening into said internal chamber.
14. 14. Device (100) according to claim 13, which comprises a plurality of suction openings arranged around the entire circumference of said housing (110).
15. 15. Device (100) according to claim 13 or 14, wherein said at least one suction opening is arranged at least partly at a distance from an upper wall of said housing (110), said distance being less than 10 cm.
16. 16. Device (100) according to one of claims 1 to 11, which is configured to be embedded in said ceiling so that said upstream inlet (111) and said downstream outlet (112) are both arranged along a lower wall (114) of said housing (110).
17. 17. Device (100) according to one of claims 1 to 16, wherein said filtration means (120) comprise a HEP A filter.
18. 18. Device (100) according to claim 17, wherein said ventilation means (130) are configured to create a turbulent flow through said HEP filter A.
19. 19. Device (100) according to claim 18, wherein said ventilation means (130) are configured to create an air flow through said HEP A filter, said air flow having a speed between 0.9 m/s and 5 m/s.
20. 20. Device (100) according to one of claims 17 to 19, in which said HEPA filter is not preceded by any prefilter.

Description

Description Title: Smoke extraction and fume treatment device and system Technical field The present invention relates to the field of fire safety. The present invention relates more particularly to the field of smoke treatment. The present invention relates more particularly to a smoke extraction and fume treatment device configured to be installed on a ceiling of a wide variety of buildings, for example private homes or offices, but also hotels or industrial buildings. The present invention also relates to the use of such a device for filtering fumes in a room in the event of a fire. The present invention additionally relates to a system implementing one or more such devices in a building. By smoke extraction, we mean here and throughout the description which follows the fact of reducing the smoke which can be caused by fires. Smoke treatment here means any action carried out on these fumes in order to improve the conditions of a room filled with fumes. The particles forming the smoke mainly correspond to soot and ash, mixed with combustion gases and hot vapors. Smoke treatment thus aims to mitigate the opacity and/or toxicity of the fumes. The invention will thus find numerous advantageous applications in smoke extraction and smoke treatment, in particular for treating their opacity and toxicity, and this in a wide variety of rooms. The invention will find applications in particular in the treatment, in a room, of smoke originating from a fire occurring in an adjacent room or in communication with this room. Prior art Fires cause three main types of illnesses: burns, trauma caused by falling materials and the escape of victims, and smoke poisoning. These fumes contain a concentration of toxic elements that most often have an irreversible impact on human health. While the toxic risks associated with fire fumes have long been underestimated, it is now considered that injuries caused by fumes, for example by poisoning or pulmonary irritation, represent the source main cause of death in fires. It is estimated that 80% of deaths are related to the inhalation of toxic fumes, with 20% directly attributable to the flames. Fire casualties and deaths occur mainly in residential and apartment building fires, which can be explained by the introduction of an increasing number of synthetic polymers into the interior equipment of homes, which are highly likely to generate toxic fumes. It is estimated that 90% of fire-related deaths are attributable to fires in buildings. Thus, the degradation of materials during a fire produces heat, smoke, toxic gases and a rarefaction of oxygen in the ambient air in enclosed spaces. The severity of fires and the risk of casualties thus results from a combination of all these factors. In industrial settings, although the risk of death is lower, the material damage associated with fires remains considerable. The total economic cost of fires is estimated to be nearly 1% of gross domestic product in developed countries. It is therefore all the more important to control the spread of flames as much as possible and to facilitate the intervention of emergency services. Another direct consequence of fire smoke is a high level of opacity in the room, occurring within a few minutes and persisting even after the fire has been extinguished. The loss of visibility generates additional panic phenomena and an additional danger. Rapid smoke extraction from a room also helps to restore visibility and prevent total blindness of those present. The law can thus impose smoke detection and extraction in residential buildings, establishments open to the public, high-rise buildings, workplaces, as well as classified establishments and installations. It is already known, for smoke extraction, to implement air extraction units. The installation of such air extraction units remains complex and presents specific constraints on buildings. In particular, the air extraction units must necessarily be connected to extraction ducts for the discharge of air outside the smoke-filled room, preferably in combination with a parallel air supply. The extraction ducts must therefore either be planned from the construction of the building, or require major renovation work for buildings not equipped. To overcome this drawback, it is also known to design autonomous smoke extraction devices, requiring no extraction duct. Such a device is placed directly on the ground, so that the toxic fumes are sucked up through the top of the device, filtered by several filters (mechanical and/or electrostatic and/or chemical), then discharged into the lower part of the device. This device is suitable for ships or even submarines, and allows fumes to be filtered after a fire, by creating a layer of treated air under the fumes, the layer of air growing during operation of the device. However, this device has several limitations. In particular, the use of several filtration stages results in a significant pressure drop. In addition, the collec