FR2782781B1 - SAFETY DEVICE FOR GAS EVACUATION SYSTEMS - Google Patents

SAFETY DEVICE FOR GAS EVACUATION SYSTEMS

Info

Publication number
FR2782781B1
FR2782781B1 FR9810976A FR9810976A FR2782781B1 FR 2782781 B1 FR2782781 B1 FR 2782781B1 FR 9810976 A FR9810976 A FR 9810976A FR 9810976 A FR9810976 A FR 9810976A FR 2782781 B1 FR2782781 B1 FR 2782781B1
Authority
FR
France
Prior art keywords
fan
cowl
motor
controller
roof
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.)
Expired - Fee Related
Application number
FR9810976A
Other languages
French (fr)
Other versions
FR2782781A1 (en
Inventor
Andre Amphoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9810976A priority Critical patent/FR2782781B1/en
Publication of FR2782781A1 publication Critical patent/FR2782781A1/en
Application granted granted Critical
Publication of FR2782781B1 publication Critical patent/FR2782781B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/005—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues 
    • F23J11/12—Smoke conduit systems for factories or large buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • F24F7/025—Roof ventilation with forced air circulation by means of a built-in ventilator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/70—Safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/40—Pressure, e.g. wind pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Architecture (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Ventilation (AREA)

Abstract

In a typical installation, stale air is drawn from vents (7) in each room (2) into rising ducts (6), exhausting through extraction cowls (3,4) on the roof (5). The necessary pressure drop is naturally induced by venturi action inherent in the cowl design, but usually induced draught fans, driven by electric motors, are incorporated. Where more than one duct is provided, a motor, or fan, break-down at one extraction point is likely to cause stale air to be drawn into some rooms by a siphoning effect. Such a break-down is detected by comparison of pressure measured by sensors (9,10) in each cowl (3,4) connected (12,13) to a central controller (11) on or under the roof. The controller, connected to the building electrical supply, controls each fan motor through further connections (14,15). On detecting the abnormal pressure condition, the controller trips all the fan motors and the system reverts to operation on natural draught. Each cowl comprises an upper enclosure, containing the motor, supported by vertical legs on a base section centered on the duct end. A vertical-axis centrifugal fan operates in the space between conical surfaces fixed under and over, respectively, these sections.
FR9810976A 1998-09-02 1998-09-02 SAFETY DEVICE FOR GAS EVACUATION SYSTEMS Expired - Fee Related FR2782781B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9810976A FR2782781B1 (en) 1998-09-02 1998-09-02 SAFETY DEVICE FOR GAS EVACUATION SYSTEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9810976A FR2782781B1 (en) 1998-09-02 1998-09-02 SAFETY DEVICE FOR GAS EVACUATION SYSTEMS

Publications (2)

Publication Number Publication Date
FR2782781A1 FR2782781A1 (en) 2000-03-03
FR2782781B1 true FR2782781B1 (en) 2000-09-29

Family

ID=9530054

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9810976A Expired - Fee Related FR2782781B1 (en) 1998-09-02 1998-09-02 SAFETY DEVICE FOR GAS EVACUATION SYSTEMS

Country Status (1)

Country Link
FR (1) FR2782781B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4107440A1 (en) * 2020-02-19 2022-12-28 ENTOS Energiatekniikan Optimisäätö Oy Installation frame of an exhaust blower of a building and exhaust air control system

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825142B1 (en) 2001-05-22 2003-08-29 Conseils Etudes Et Recherches En Gestion De Lair Cerga FAN INTENDED TO BE ASSOCIATED WITH AN AIR EXHAUST DUCT OUTSIDE AT LEAST ONE PREMISES
PL368953A1 (en) * 2004-07-06 2006-01-09 Przedsiębiorstwo Usługowo-Produkcyjne i WdrażaniaPostępu Technicznego UNIWERSAL Sp.z o.o. Hybrid ventilation cap
FR2892499B1 (en) * 2005-10-20 2008-01-11 Astato Soc Par Actions Simplif STATO-DYNAMIC AIR EXTRACTOR COMPRISING SENSOR FOR OPERATING THE BLADES OF SAID EXTRACTOR
FR2911671B1 (en) * 2007-01-19 2010-06-18 Sarl Mvn DEVICE FOR MECHANICAL ASSISTANCE FOR THE EVACUATION OF GAS FLOWS PARTICULARLY FOR A HABITABLE ASSEMBLY
FR2957661B1 (en) * 2010-02-05 2014-08-22 Atlantic Climatisation Et Ventilation VENTILATION INSTALLATION OF A LOCAL AND METHOD OF CONTROLLING SUCH A INSTALLATION
CN110779140B (en) * 2019-10-29 2020-08-18 山东高速齐鲁建设集团有限公司 Fresh air system for high-rise building
FR3129462B1 (en) * 2021-11-19 2023-12-08 Vti Fixing support for a turret for extracting a fluid flow, system for extracting a fluid flow and regulation method
CN117704544B (en) * 2024-02-04 2024-05-28 中国建筑设计研究院有限公司 Natural ventilation energy-saving system for large building space

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374591A1 (en) 1976-12-14 1978-07-13 Amphoux Andre Vacuum inducer for chimney stack - has baffle plate and venturi induced by cross-draught over cones separated by fins
US4352349A (en) * 1979-11-14 1982-10-05 Yoho Robert W Control circuit for air conditioning systems
FR2514469B1 (en) 1981-10-13 1986-04-04 Amphoux Andre STATIC, DYNAMIC AND MECHANICAL GAS FLUID VACUUM DEVICE
DE3409214A1 (en) * 1983-03-18 1984-10-04 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Waste-gas removal device for a fuel-heated heat source
DE3901081A1 (en) * 1989-01-16 1990-07-19 Willi Skoberne Installation for carrying away flue gases
FR2658271B1 (en) 1990-02-09 1995-01-06 Andre Amphoux DEVICE FOR SUCTION AND RELEASE OF GASES OR SMOKE AND INSTALLATION COMPRISING A PLURALITY OF SUCH DEVICES.
FR2709534B1 (en) 1993-09-03 1996-02-09 Andre Amphoux Static / dynamic device for evacuating gaseous fluid.
FR2709533B1 (en) 1993-09-03 1995-11-03 Amphoux Andre Device for discharging gaseous fluid.
FR2755505B1 (en) 1996-11-05 1999-01-15 Amphoux Andre AIR EXTRACTOR FOR VENTILATION
FR2755585B1 (en) 1996-11-08 1999-01-29 Salomon Sa SPORT SHOE WITH MOBILE COLLAR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4107440A1 (en) * 2020-02-19 2022-12-28 ENTOS Energiatekniikan Optimisäätö Oy Installation frame of an exhaust blower of a building and exhaust air control system
EP4107440A4 (en) * 2020-02-19 2024-05-15 ENTOS Energiatekniikan Optimisäätö Oy Installation frame of an exhaust blower of a building and exhaust air control system

Also Published As

Publication number Publication date
FR2782781A1 (en) 2000-03-03

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070531