EP1360669B1 - Verfahren und einrichtung zur überwachung unterirdischer anlagen - Google Patents

Verfahren und einrichtung zur überwachung unterirdischer anlagen Download PDF

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Publication number
EP1360669B1
EP1360669B1 EP02708209A EP02708209A EP1360669B1 EP 1360669 B1 EP1360669 B1 EP 1360669B1 EP 02708209 A EP02708209 A EP 02708209A EP 02708209 A EP02708209 A EP 02708209A EP 1360669 B1 EP1360669 B1 EP 1360669B1
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EP
European Patent Office
Prior art keywords
fact
air
physical
over
flow
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 - Lifetime
Application number
EP02708209A
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German (de)
English (en)
French (fr)
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EP1360669A1 (de
Inventor
Axel Dr.Rer.Nat.Habil. Kretzschmar
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Individual
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Publication of EP1360669A1 publication Critical patent/EP1360669A1/de
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Definitions

  • the invention relates to a method and a device for monitoring Underground facilities in which natural or forced currents prevail, such as tunnels, passages, channels, etc.
  • Trigger fire alarms to prevent a fire early, d. H. already in its formation phase, contain and fire spread to be able to prevent.
  • it is already known from US-A-4 149 159, along the ceiling of the Tunnel detectors to install.
  • z. Eg in the ADW 511 system Transafe - the linear heat detector - a copper sensor tube along the tunnel ceiling installed, in which there is a gas.
  • the caused by local warming Pressure change is by a connected to the end of the pipe electronic pressure transducer registered immediately (SecuriSens homepage / website). To avoid incorrect measurements, the in the pressure prevailing in the pipe is constantly monitored.
  • the heat sensor cable TSC 511 which is based on a similar principle also known under the brand SecuriSens on the company's website has become. Again, the installation takes place over long Meßstrekken. On a jacketed ribbon cable acting as a data and memory bus serves, small temperature sensors are applied at regular intervals, which are polled regularly. An evaluation logic decides based on given values, when an inadmissibly high warming must be signaled.
  • the problem of the invention is therefore a method of monitoring to create underground facilities that are economically viable Expense high reliability allows.
  • a rapid detection and localized localization of fire sources as well as the use of gas detectors a safe distinction Smoke and combustion gases from vehicle exhaust gases may be possible.
  • this Devices are designed to use simple and robust detectors can be.
  • the burden of evaluation software compared the solutions described above be significantly lower.
  • the object is achieved by the features of the claim 1 solved.
  • the claims 2 to 4 provide advantageous procedures
  • the claim 5 relates to a device for monitoring Underground facilities where the measurement plane is transverse to the flow direction the air is arranged.
  • the following claims 6 and 7 relate to certain Arrangements of detectors within a measurement plane.
  • the new procedure takes account of the requirement that a impermissible change in the physical or chemical properties the air within the underground facility is captured as quickly as possible and must be located exactly.
  • the type of detection irrelevant By the detection according to the invention transversely to the flow direction the air becomes the cause of the change nearest detectors the one decisive for triggering an alarm signal Contributing to the inclusive assessment of the whole level Provide sum signal. Even higher wind speeds remain without Significant influence on the detection, as the detectors not only at the Ceiling, but also in the area of the walls and the floor of the structural Plant are arranged.
  • the invention has the advantage that relatively insensitive in the case of installation of individual detectors and thus cost-effective detectors, such as optical detectors, the only provide a signal when reaching a certain status used can be.
  • An economically particularly favorable variant of the invention is in place of individual detectors aerodynamically designed suction nozzles or openings through which air is constantly sucked.
  • the resulting from the sum of the sucked air from all nozzles mixture is in a per measurement level provided detection and evaluation compared with a threshold.
  • Such detectors do not have to have high sensitivity. They only give a signal when the concentration of the noxious gas in the sucked air the set Threshold exceeds. It is irrelevant which of the suction nozzles sucks in the critical noxious gas.
  • the decisive factor is that this is the evaluation device reaching air-pollutant gas mixture of this than the Threshold is detected.
  • suction nozzles By the arrangement of suction nozzles in the area of the bottom of the underground plant can thus also such noxious gases are found whose density is greater than air. Since the set threshold value is exceeded only if several Suction nozzles over a longer period of a noxious gas or suck in the case of a fire, flue gas is sucked up from several nozzles in a short time, d. H. abruptly detected a quantitative increase in noxious gases is a sure distinction between dangerous and merely caused by increased traffic or traffic Air changes possible.
  • a further increase in safety in underground facilities is possible if different properties are detected within a measuring level Sensors or in addition to suction nozzles, for example, optical or thermal detectors are installed. This is due to the use cost-effective, less prone to failure and low maintenance detectors with a economically justifiable effort possible.
  • FIGS. 1 and 2 each show a section of a traffic tunnel whose Clearance profile is limited by a curved tunnel wall 1, shown.
  • Fig. 1 following the clearance space profile at the tunnel wall 1 with a distance of about 50 m two pipe bends 2 installed, which with a Pipe end open into a detector device 3, not shown.
  • the pipe bends 2 are evenly distributed over the circumference suction 4 introduced.
  • Their opening diameters are fluidic designed so that at the same suction power at each opening the same Volume flow per unit time is sucked.
  • At the bottom of the traffic tunnel there is a fire 5, which leads to an intense smoke leads.
  • the smoke 6 spreads in the direction of the traffic tunnel prevailing and indicated by an arrow air flow. 7 out.
  • Fig. 2 In contrast to Fig. 1 are in Fig. 2 instead of the pipe bends 2 on the tunnel wall 1 detectors 8 installed. From each detector 8 is a signal line to an evaluation unit 9, not shown, depending on the Evaluation mode an integration of all individual signals determined in this measuring level he follows. The information thus obtained is with the given Threshold compared, which when exceeded an alarm signal is triggered.
  • detectors 8 detectors of simple design, such as optical Detectors, smoke detectors or heat detectors are used. This one in itself only a certain status, namely the presence of a certain physical or chemical condition, So no information about intensity, quality or the permissibility of this Condition must deliver, even with this variant simple and inexpensive detectors are used. Only the integration over all measured Values within a measurement level provide the desired, d. H. the for the correct assessment of the prevailing situation factually correct Information.
  • FIG Cross-sectional view of the tunnel recognizable.
  • the fire smoke 6 collects below the tunnel cover within a short time. All located in this area intake 4 of the Fire 5 in the flow direction subsequent pipe bends 2, which are good One third of all suction 4 per pipe bend 2, suck the smoke 6 on.
  • the incoming in the detector device 3 air-smoke mixture is immediately recognized as dangerous, so that it comes to alarm triggering. in the In contrast, this is from an upwardly directed exhaust pipe of a Although truck exiting exhaust gas over the entire tunnel length but only sucked by one or two intake ports 4, so that the air-exhaust mixture not the critical concentration required for an alarm reached.
  • detectors 8 are arranged.
  • Each at the highest point of Tunnel wall 1 arranged detectors 8 act over the entire tunnel length almost like a line detector.
  • Entire tunnel length responding detectors 8 indicate a passing Vehicle with exhaust pipe pointing upwards.
  • the evaluation unit 9 in comparison with the respective signal of the others located in the same measuring level Detectors 8 because of its small proportion in relation to the total number the detectors 8, do not trigger an alarm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Emergency Alarm Devices (AREA)
  • Testing And Monitoring For Control Systems (AREA)
EP02708209A 2001-02-16 2002-02-01 Verfahren und einrichtung zur überwachung unterirdischer anlagen Expired - Lifetime EP1360669B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10107260 2001-02-16
DE10107260A DE10107260A1 (de) 2001-02-16 2001-02-16 Verfahren und Einrichtung zur Überwachung unterirdischer Anlagen
PCT/DE2002/000411 WO2002067217A1 (de) 2001-02-16 2002-02-01 Verfahren und einrichtung zur überwachung unterirdischer anlagen

Publications (2)

Publication Number Publication Date
EP1360669A1 EP1360669A1 (de) 2003-11-12
EP1360669B1 true EP1360669B1 (de) 2005-01-19

Family

ID=7674277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02708209A Expired - Lifetime EP1360669B1 (de) 2001-02-16 2002-02-01 Verfahren und einrichtung zur überwachung unterirdischer anlagen

Country Status (7)

Country Link
US (1) US20040089081A1 (no)
EP (1) EP1360669B1 (no)
AT (1) ATE287566T1 (no)
CA (1) CA2438570A1 (no)
DE (2) DE10107260A1 (no)
NO (1) NO20033450D0 (no)
WO (1) WO2002067217A1 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6110776B2 (ja) * 2013-10-30 2017-04-05 能美防災株式会社 トンネル防災システム
WO2017023723A1 (en) * 2015-08-06 2017-02-09 Honeywell International Inc. System and method for benchmarking, determining health indicator, and predictive analysis of gas data
US20200391059A1 (en) * 2017-12-12 2020-12-17 Nec Corporation Control system for use during tunnel fire

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801403A (en) * 1952-04-15 1957-07-30 Atlas Werke Ag Measuring railroad tunnels by echo sounding
CH521649A (de) * 1970-07-31 1972-04-15 Cerberus Ag Feuermeldeeinrichtung
CH600454A5 (no) * 1976-11-16 1978-06-15 Cerberus Ag
US4180322A (en) * 1978-05-01 1979-12-25 Alcyon Equipment S.A. Interior measurement of enclosed spaces
US4442720A (en) * 1980-07-29 1984-04-17 The United States Of America As Represented By The United States Department Of Energy Sampling device for withdrawing a representative sample from single and multi-phase flows
JPS5977594A (ja) * 1982-10-27 1984-05-04 ニツタン株式会社 火災警報システム
US4615224A (en) * 1985-08-09 1986-10-07 Burroughs Corporation Air sampling system for smoke detection
US4888720A (en) * 1987-12-07 1989-12-19 Fryer Glenn E Tunnel measuring apparatus and method
DE4120816C2 (de) * 1991-06-25 2001-11-08 Rabotek Ind Comp Gmbh Verfahren und Einrichtung zur Überwachung von Tunnelbauwerken
GB2284261B (en) * 1993-11-29 1997-03-05 Bicc Plc Thermal management of electronics equipment
US5557262A (en) * 1995-06-07 1996-09-17 Pittway Corporation Fire alarm system with different types of sensors and dynamic system parameters
AU701191B2 (en) * 1995-08-18 1999-01-21 Ge Infrastructure Security Pty Ltd Fire detection system
ATE292278T1 (de) * 1998-05-15 2005-04-15 Geso Ges Fuer Sensorik Geotech Vorrichtung zum monitoring von temperaturverteilungen auf der basis verteilter faseroptischer sensorik
CA2291203A1 (en) * 1998-12-04 2000-06-04 George A. Schoenfelder Aspirated detector with flow sensor
GB9916022D0 (en) * 1999-07-09 1999-09-08 Sensor Highway Ltd Method and apparatus for determining flow rates
DE10019537C2 (de) * 2000-04-20 2002-03-21 Kretzschmar Axel Anordnung zur Sicherung der Flucht und Rettung unter Rauch-, Wärme- und Schadstoffbelastung

Also Published As

Publication number Publication date
WO2002067217A1 (de) 2002-08-29
CA2438570A1 (en) 2002-08-29
DE50202041D1 (de) 2005-02-24
NO20033450L (no) 2003-08-04
DE10107260A1 (de) 2002-09-12
EP1360669A1 (de) 2003-11-12
US20040089081A1 (en) 2004-05-13
NO20033450D0 (no) 2003-08-04
ATE287566T1 (de) 2005-02-15

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