FR2253987A1 - Flow control vanes for ventilation system - adjustable vanes precede branch point located given distance away - Google Patents

Flow control vanes for ventilation system - adjustable vanes precede branch point located given distance away

Info

Publication number
FR2253987A1
FR2253987A1 FR7344110A FR7344110A FR2253987A1 FR 2253987 A1 FR2253987 A1 FR 2253987A1 FR 7344110 A FR7344110 A FR 7344110A FR 7344110 A FR7344110 A FR 7344110A FR 2253987 A1 FR2253987 A1 FR 2253987A1
Authority
FR
France
Prior art keywords
vanes
branch point
flow control
ventilation system
precede
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.)
Granted
Application number
FR7344110A
Other languages
French (fr)
Other versions
FR2253987B3 (en
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.)
SOFRAIR
Original Assignee
SOFRAIR
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 SOFRAIR filed Critical SOFRAIR
Priority to FR7344110A priority Critical patent/FR2253987A1/en
Publication of FR2253987A1 publication Critical patent/FR2253987A1/en
Application granted granted Critical
Publication of FR2253987B3 publication Critical patent/FR2253987B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003—Ventilation of traffic tunnels
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • 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
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Air-Flow Control Members (AREA)

Abstract

A multiple channel ventilation system for car parks, underground tunnels etc., includes a distribution arrangement employing one or more adjustable flow control vanes (8) located in the main duct (1) preceding the branch point (2) for two subsidiary ducts (3, 4) which incorporate a pair of extraction fans (5, 6). The distance of the vanes from the branch point is proportional to the size of the main duct, and is between 0.5 and 5 times the diameter or size of the largest side of the duct. The vanes may be of aerofoil shape or formed from falt or curved sheet and are adjustable individually or together.
FR7344110A 1973-12-11 1973-12-11 Flow control vanes for ventilation system - adjustable vanes precede branch point located given distance away Granted FR2253987A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7344110A FR2253987A1 (en) 1973-12-11 1973-12-11 Flow control vanes for ventilation system - adjustable vanes precede branch point located given distance away

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7344110A FR2253987A1 (en) 1973-12-11 1973-12-11 Flow control vanes for ventilation system - adjustable vanes precede branch point located given distance away

Publications (2)

Publication Number Publication Date
FR2253987A1 true FR2253987A1 (en) 1975-07-04
FR2253987B3 FR2253987B3 (en) 1978-11-24

Family

ID=9129014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7344110A Granted FR2253987A1 (en) 1973-12-11 1973-12-11 Flow control vanes for ventilation system - adjustable vanes precede branch point located given distance away

Country Status (1)

Country Link
FR (1) FR2253987A1 (en)

Also Published As

Publication number Publication date
FR2253987B3 (en) 1978-11-24

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