FR2427466A1 - Dispositif detecteur de danger d'explosion notamment pour installations minieres - Google Patents

Dispositif detecteur de danger d'explosion notamment pour installations minieres

Info

Publication number
FR2427466A1
FR2427466A1 FR7816156A FR7816156A FR2427466A1 FR 2427466 A1 FR2427466 A1 FR 2427466A1 FR 7816156 A FR7816156 A FR 7816156A FR 7816156 A FR7816156 A FR 7816156A FR 2427466 A1 FR2427466 A1 FR 2427466A1
Authority
FR
France
Prior art keywords
core
detection system
monitoring position
junction
explosion detection
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
FR7816156A
Other languages
English (en)
Other versions
FR2427466B1 (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.)
Oldham France SA
Original Assignee
Oldham France SA
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 Oldham France SA filed Critical Oldham France SA
Priority to FR7816156A priority Critical patent/FR2427466A1/fr
Publication of FR2427466A1 publication Critical patent/FR2427466A1/fr
Application granted granted Critical
Publication of FR2427466B1 publication Critical patent/FR2427466B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/16—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by burning or catalytic oxidation of surrounding material to be tested, e.g. of gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0073—Control unit therefor
    • G01N33/0075—Control unit therefor for multiple spatially distributed sensors, e.g. for environmental monitoring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

Ce dispositif comportant des capteurs disposés à des emplacements à surveiller et connectés à un poste central de surveillance, lesdits capteurs comportant chacun un filament détecteur et une résistance associée à un filament de compensation qui font partie de deux premières branches d'un pont de mesure, dont les deux autres branches, les moyens indicateurs et la source d'alimentation sont contenus dans le poste central, est caractérisé en ce que les filaments détecteurs 8 d'une part et les résistances 14 avec leurs filaments de compensation 9 associés d'autre part sont connectés en série pour constituer respectivement lesdites premières branches du pont de mesure, chaque capteur 1, 2 étant connecté au poste central 3 par un câble 4, 5 à quatre conducteurs et un câble 7 à trois conducteurs entre lesquels est insérée une boîte de raccordement 6 comportant un nombre de bornes de raccordement égal à 2n + 1, n étant le nombre de capteurs du dispositif.
FR7816156A 1978-05-30 1978-05-30 Dispositif detecteur de danger d'explosion notamment pour installations minieres Granted FR2427466A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7816156A FR2427466A1 (fr) 1978-05-30 1978-05-30 Dispositif detecteur de danger d'explosion notamment pour installations minieres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816156A FR2427466A1 (fr) 1978-05-30 1978-05-30 Dispositif detecteur de danger d'explosion notamment pour installations minieres

Publications (2)

Publication Number Publication Date
FR2427466A1 true FR2427466A1 (fr) 1979-12-28
FR2427466B1 FR2427466B1 (fr) 1980-12-19

Family

ID=9208863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816156A Granted FR2427466A1 (fr) 1978-05-30 1978-05-30 Dispositif detecteur de danger d'explosion notamment pour installations minieres

Country Status (1)

Country Link
FR (1) FR2427466A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514407A1 (fr) * 1981-10-13 1983-04-15 Coal Industry Patents Ltd Tete rotative de havage munie d'un detecteur d'une condition dangereuse de travail, telle qu'une concentration de methane
FR2518335A1 (fr) * 1981-12-14 1983-06-17 Charbonnages De France Procede et dispositif de teletransmission de signaux et application a la detection et/ou la mesure de la teneur en gaz combustible d'une atmosphere
WO1995000745A1 (fr) * 1993-06-28 1995-01-05 Chastnoe Maloe Predpriyatie 'ukraina' Procede de prevision des eclatements de roche dans une strate
RU2452862C1 (ru) * 2010-12-08 2012-06-10 Общество с ограниченной ответственностью "Новые Технологии Пожаротушения" Способ предотвращения взрыва метаноугольновоздушной смеси

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351483A (en) * 1918-06-24 1920-08-31 Herbert Austin Process for extracting oleaginous substances from oleaginous-substance-containing materials
FR877831A (fr) * 1940-07-02 1943-01-04 Installation et procédé pour extraire les huiles des produits ayant servi à les décolorer
FR1519539A (fr) * 1965-05-05 1968-04-05 Procédé de filtration et d'extraction à contre-courant d'une suspension de matières solides dans un agent suspenseur liquide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351483A (en) * 1918-06-24 1920-08-31 Herbert Austin Process for extracting oleaginous substances from oleaginous-substance-containing materials
FR877831A (fr) * 1940-07-02 1943-01-04 Installation et procédé pour extraire les huiles des produits ayant servi à les décolorer
FR1519539A (fr) * 1965-05-05 1968-04-05 Procédé de filtration et d'extraction à contre-courant d'une suspension de matières solides dans un agent suspenseur liquide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514407A1 (fr) * 1981-10-13 1983-04-15 Coal Industry Patents Ltd Tete rotative de havage munie d'un detecteur d'une condition dangereuse de travail, telle qu'une concentration de methane
FR2518335A1 (fr) * 1981-12-14 1983-06-17 Charbonnages De France Procede et dispositif de teletransmission de signaux et application a la detection et/ou la mesure de la teneur en gaz combustible d'une atmosphere
EP0082080A1 (fr) * 1981-12-14 1983-06-22 Etablissement public dit: CHARBONNAGES DE FRANCE Procédé et dispositif de télétransmission de signaux et application à la détection et/ou la mesure de la teneur en gaz combustible d'une atmosphère
US4608552A (en) * 1981-12-14 1986-08-26 Charbonnages De France Process and device for the remote transmission of signals and application to the detection and/or measurement of the quanity of combustible gas in an atmosphere
WO1995000745A1 (fr) * 1993-06-28 1995-01-05 Chastnoe Maloe Predpriyatie 'ukraina' Procede de prevision des eclatements de roche dans une strate
RU2452862C1 (ru) * 2010-12-08 2012-06-10 Общество с ограниченной ответственностью "Новые Технологии Пожаротушения" Способ предотвращения взрыва метаноугольновоздушной смеси

Also Published As

Publication number Publication date
FR2427466B1 (fr) 1980-12-19

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