WO2014118816A1 - Anti explosion non return valve coupled to a counterweight by an anchor element that is releasable at a predetermined force - Google Patents

Anti explosion non return valve coupled to a counterweight by an anchor element that is releasable at a predetermined force Download PDF

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Publication number
WO2014118816A1
WO2014118816A1 PCT/IT2014/000026 IT2014000026W WO2014118816A1 WO 2014118816 A1 WO2014118816 A1 WO 2014118816A1 IT 2014000026 W IT2014000026 W IT 2014000026W WO 2014118816 A1 WO2014118816 A1 WO 2014118816A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
counterweight
bar
closing
per
Prior art date
Application number
PCT/IT2014/000026
Other languages
English (en)
French (fr)
Inventor
Bruno Forte
Original Assignee
Aircom Srl
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 Aircom Srl filed Critical Aircom Srl
Publication of WO2014118816A1 publication Critical patent/WO2014118816A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/241—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts
    • A62C2/243—Operating or controlling mechanisms having mechanical actuators and heat sensitive parts with frangible elements
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/247—Operating or controlling mechanisms having non-mechanical actuators electric
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/248—Operating or controlling mechanisms having non-mechanical actuators pneumatic
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave

Definitions

  • DESCRIPTION CONTEXT Equipment used in industrial suction system as a "safety element" contemplated in the European Norm EN 15089 November 2004 (Explosion Isolation System).
  • This Norm determines the parameters of securing system from the effects of a possible explosion in order to stop the propagation's effect of explosion in working environments.
  • paragraph 3.12 and 3.13 of the Norm is specified the definition's term "rapid action of the valve able to block the explosion's effect to travel across the pipe's line of the passage of aspirated material, while at paragraph 7 shows the systems and tests to effect and behavioural parameters of the explosion isolation valves.
  • the propagation's speed of the flame and pressure is related of the material's type that pass into the pipe, and the classification of explosion is in three classes: St 1 class with KST material 0-199 (maximum speed 199 bar m/s); St 2 class with KST material 200-299 (speed 200-299 bar m/s); St 3 Class with KST material 300-900 (speed 300-900 bar m/s).
  • St 1 class with KST material 0-199 maximum speed 199 bar m/s
  • St 2 class with KST material 200-299 speed 200-299 bar m/s
  • St 3 Class with KST material 300-900 speed 300-900 bar m/s.
  • the objective is to certify at least in Class 2, on valves from diameter more than 0,38 mq (0700 mm) to satisfy most of the installations where our customers operate in the world.
  • I magnetic or electromagnetic detail
  • G bar fixed to
  • E mobile bar counterweight
  • L magnetic or electromagnetic.
  • the valve consists from a body (which may have the parallelepiped, round, half-round or other shape) schedule 1 picture IB on which one side enters the air from the environment of work and from the other opposite (to valley) the air aspirated goes out towards the vessels of aspirated material.
  • the entry's pipe in the valve stops just entered into the valve (schedule 1 picture 2K) and it is the element that must be closed in case of explosion in the vessels to valley.
  • the not return valve has the role to allow the diaphragm's opening with depression's force of suction
  • the counterweight is a positive element for the diaphragm's opening, but it becomes a negative element for the diaphragm's closing. It opposes a contrary force to the thrust and slows the rotation's movement and diaphragm's
  • the closing speed must be proportional to the treated material by the suction system, higher is the St class higher must be the closing speed to not allow the flame's 130 passage or pressure or, otherwise, the valve must be removed away from the vessels point with all consequence of space and possibility that the pipe becomes store of material and dangers with an explosion and consequent limitations imposed by the reference norm.
  • the patent aims to preserve the invention in principle to release counterweights of balance (placed outside of the "valve body” opposed to the diaphragm placed inside the valve "schedule 1 picture 1" allowing the opening of diaphragm with a minimum depression near zero, fixed to a

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Safety Valves (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
PCT/IT2014/000026 2013-01-30 2014-01-30 Anti explosion non return valve coupled to a counterweight by an anchor element that is releasable at a predetermined force WO2014118816A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000008A ITTV20130008A1 (it) 2013-01-30 2013-01-30 Sistema di contrappeso sganciabile per mezzo di elemento di ancoraggio a carico predeterminato, applicato alle valvole di non ritorno antiscoppio.
ITTV2013A000008 2013-01-30

Publications (1)

Publication Number Publication Date
WO2014118816A1 true WO2014118816A1 (en) 2014-08-07

Family

ID=47722467

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2014/000026 WO2014118816A1 (en) 2013-01-30 2014-01-30 Anti explosion non return valve coupled to a counterweight by an anchor element that is releasable at a predetermined force

Country Status (2)

Country Link
IT (1) ITTV20130008A1 (it)
WO (1) WO2014118816A1 (it)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE701524A (it) * 1967-07-19 1968-01-02
FR2341732A1 (fr) * 1976-02-20 1977-09-16 Apb Sa Volet anti-souffle a fermeture et ouverture automatiques
US4844113A (en) * 1988-03-17 1989-07-04 Jones Cecil R Fluid flow safety valve
US5402603A (en) * 1992-01-03 1995-04-04 Henley; Robert L. Flapper plate detonation flame arrester
WO1995012083A1 (de) * 1993-10-28 1995-05-04 Albert Thorwesten Vorrichtung, insbesondere zur explosions-entlastung für rohrleitungen
FR2851176A1 (fr) * 2003-02-19 2004-08-20 Sagefa Dispositif pour attenuer les effets d'une explosion survenant dans une installation de separation et de captation des poussieres contenues dans des matieres gazeuses

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE701524A (it) * 1967-07-19 1968-01-02
FR2341732A1 (fr) * 1976-02-20 1977-09-16 Apb Sa Volet anti-souffle a fermeture et ouverture automatiques
US4844113A (en) * 1988-03-17 1989-07-04 Jones Cecil R Fluid flow safety valve
US5402603A (en) * 1992-01-03 1995-04-04 Henley; Robert L. Flapper plate detonation flame arrester
WO1995012083A1 (de) * 1993-10-28 1995-05-04 Albert Thorwesten Vorrichtung, insbesondere zur explosions-entlastung für rohrleitungen
FR2851176A1 (fr) * 2003-02-19 2004-08-20 Sagefa Dispositif pour attenuer les effets d'une explosion survenant dans une installation de separation et de captation des poussieres contenues dans des matieres gazeuses

Also Published As

Publication number Publication date
ITTV20130008A1 (it) 2014-07-31

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