FR2254245A5 - Tunnel escape system for smoke or fumes - has temperature responsive escape flaps with fusible locking washers - Google Patents

Tunnel escape system for smoke or fumes - has temperature responsive escape flaps with fusible locking washers

Info

Publication number
FR2254245A5
FR2254245A5 FR7343728A FR7343728A FR2254245A5 FR 2254245 A5 FR2254245 A5 FR 2254245A5 FR 7343728 A FR7343728 A FR 7343728A FR 7343728 A FR7343728 A FR 7343728A FR 2254245 A5 FR2254245 A5 FR 2254245A5
Authority
FR
France
Prior art keywords
escape
fumes
smoke
tunnel
bolt
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
Application number
FR7343728A
Other languages
French (fr)
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 FR7343728A priority Critical patent/FR2254245A5/en
Application granted granted Critical
Publication of FR2254245A5 publication Critical patent/FR2254245A5/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The ventilators are spaced at intervals along the tunnel and are joined by a duct to an extraction fan. The ventilators are fitted with damper plates (7) which are hinged so that they can be opened by an predetermined amount. Each damper plate may be locked by means of a nut and bolt. The bolt passes through a slot in the plate. The damper plate is urged fully open by the action of a spring (9). A fusible washer is fitted under the bolt head. Should the temperature rise due to a fire, the bolt will no longer be tight and the spring causes the plate to open wide.
FR7343728A 1973-12-07 1973-12-07 Tunnel escape system for smoke or fumes - has temperature responsive escape flaps with fusible locking washers Expired FR2254245A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7343728A FR2254245A5 (en) 1973-12-07 1973-12-07 Tunnel escape system for smoke or fumes - has temperature responsive escape flaps with fusible locking washers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7343728A FR2254245A5 (en) 1973-12-07 1973-12-07 Tunnel escape system for smoke or fumes - has temperature responsive escape flaps with fusible locking washers

Publications (1)

Publication Number Publication Date
FR2254245A5 true FR2254245A5 (en) 1975-07-04

Family

ID=9128883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7343728A Expired FR2254245A5 (en) 1973-12-07 1973-12-07 Tunnel escape system for smoke or fumes - has temperature responsive escape flaps with fusible locking washers

Country Status (1)

Country Link
FR (1) FR2254245A5 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898088A (en) * 1989-02-02 1990-02-06 Norman Lesser Totally fusible tunnel ventilation damper system
EP1544408A1 (en) * 2003-12-16 2005-06-22 Vid ApS A system for exhausting flue gases in a tunnel
FR2891612A1 (en) * 2005-10-05 2007-04-06 Patrick Kalb Fume evacuation duct with blower and retractable shutters, has shutters in pairs pivoted to inner surface of duct base and connected by hinges
CN110374658A (en) * 2019-08-22 2019-10-25 中南大学 Tunnel active formula tilts ceiling smoke evacuation system and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4898088A (en) * 1989-02-02 1990-02-06 Norman Lesser Totally fusible tunnel ventilation damper system
EP1544408A1 (en) * 2003-12-16 2005-06-22 Vid ApS A system for exhausting flue gases in a tunnel
FR2891612A1 (en) * 2005-10-05 2007-04-06 Patrick Kalb Fume evacuation duct with blower and retractable shutters, has shutters in pairs pivoted to inner surface of duct base and connected by hinges
CN110374658A (en) * 2019-08-22 2019-10-25 中南大学 Tunnel active formula tilts ceiling smoke evacuation system and method
CN110374658B (en) * 2019-08-22 2024-02-27 中南大学 Tunnel movable inclined ceiling smoke exhausting system and method

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Legal Events

Date Code Title Description
TP Transmission of property