EP0675263B1 - System zum Auffangen von Staub im Tunnel - Google Patents

System zum Auffangen von Staub im Tunnel Download PDF

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Publication number
EP0675263B1
EP0675263B1 EP95107725A EP95107725A EP0675263B1 EP 0675263 B1 EP0675263 B1 EP 0675263B1 EP 95107725 A EP95107725 A EP 95107725A EP 95107725 A EP95107725 A EP 95107725A EP 0675263 B1 EP0675263 B1 EP 0675263B1
Authority
EP
European Patent Office
Prior art keywords
air
tunnel
dust collecting
collecting system
collecting chamber
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
EP95107725A
Other languages
English (en)
French (fr)
Other versions
EP0675263A1 (de
Inventor
Shogo Nakamura
Toshiharu Sasamoto
Yoshihiro Minowa
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of EP0675263A1 publication Critical patent/EP0675263A1/de
Application granted granted Critical
Publication of EP0675263B1 publication Critical patent/EP0675263B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/20—Drawing-off or depositing dust

Definitions

  • This invention relates to a tunnel dust collecting system according to the preamble of the claim.
  • an electrical dust collector is used to remove dust and smoke from the contaminated air in a tunnel thereby to use the air again.
  • the tunnel dust collecting system is installed on the ceiling of a tunnel which is provided mainly for automobiles.
  • a tunnel dust collecting system according to the preamble of claim 1 is known from JP-A-63-319072.
  • Fig. 2 (A) There are available a variety of tunnel dust collecting systems. Typical ones of the systems, are a tunnel dust collecting system of bypass tunnel type as shown in Fig. 2 (A), and a tunnel dust collecting system of ceiling installation type as shown in Fig. 2(B) and Figs. 3(A) and 3(B).
  • Figs. 3(A) and 3(B) are a plan view and a sectional view of the tunnel dust collecting system shown in Fig. 2(B).
  • a bypass tunnel is connected, as a dust collecting chamber 2, to the main tunnel 1 provided for automobiles, so that the air contaminated in the tunnel 1 is led into the dust collecting chamber at one end opened in the side wall of the main tunnel 1, where it is decontaminated with an electrical dust collector 3 (hereinafter referred to merely as "a dust collector 3", when applicable).
  • the air thus processed is supplied into the main tunnel 1 with an air blower 4 through the other end of the dust collecting chamber 2.
  • a ceiling board 5 is installed in such a manner as to form a dust collecting chamber 2 in the upper portion of a tunnel.
  • the dust collecting chamber 2 has one end 2a which is used to suck air from the tunnel (hereinafter referred to as "an air sucking end 2a”, when applicable), and the other end 2b which is used to supply decontaminated air into the tunnel (hereinafter referred to as "an air supplying end 2b", when applicable).
  • the contaminated air sucked into the dust collecting chamber 2 through the air sucking end 2a is decontaminated with dust collectors 3, and the air thus decontaminated is supplied into the tunnel with air blowers 4 provided near the air supplying end 2b.
  • the tunnel dust collecting system of ceiling installation type is advantageous in that its installation cost is lower because it is unnecessary to form the bypass tunnel.
  • two dust collectors 3 are provided in the dust collecting chamber 2 in such a manner that they are separated from each other with a partition board 6. More specifically, the dust collecting chamber is divided by the partition board 6 into two parts,in which the two dust collectors are provided, respectively.
  • Two axial flow type air blowers 4 with cylindrical casings 4b are provided at the air supplying end 2b of the dust collecting chamber 2, and air sucking inlets 7 are provided at the air sucking end of the dust collecting chamber 2.
  • the air in the upper portion of the tunnel is sucked through the air sucking inlets 7 linearly along the central axis of the tunnel into the dust collecting chamber and decontaminated with the dust collectors 3, and the air thus decontaminated is linearly supplied into the tunnel with the air blowers 4 through air supplying outlets 4a.
  • the ceiling board 5 serves as a base board which supports the dust collectors 3 etc. Generally, the ceiling board 5 is extended to the air supplying outlets 4a of the air blowers 4, being utilized as means for making access to the air blowers for inspection or maintenance.
  • the above-described conventional tunnel dust collecting system of ceiling installation type is disadvantageous in the following points lowering its dust collection efficiency.
  • the conventional tunnel dust collecting system as shown in Fig. 3, the air decontaminated by the dust collectors 3 is blown along the central axis of the tunnel 1 into the upper portion of the latter as it is. Therefore, when compared with the tunnel dust collecting system of bypass tunnel type, the decontaminated air is difficult to mix with the contaminated air in the driveway space la of the tunnel 1.
  • the conventional system cannot decontaminate air sufficiently in the area where the engine load of an automobile is increased to increase the contamination of air as in an up- grade driveway of an undersea tunnel.
  • the interval of installation of dust collecting systems is determined with the distance taken into consideration with which decontaminated air is completely mixed with contaminated air.
  • the ceiling board 5 is provided below the air blowers 4. Therefore, as shown in Fig. 3(B), the stream of air blown by the air blowers 4 is not smoothly met with the stream of air around it, thus forming eddies 12. As a result, energy loss is caused, and accordingly it is necessary to use high electric power to supply decontaminated air at a predetermined flow rate.
  • a general object of this invention is to provide a tunnel dust collecting system in which these difficulties are eliminated, thereby to improve the cleanliness of the air in a tunnel. This will be described in more detail.
  • an object of this invention is to provide a tunnel dust collecting system with which the distance required for mixing decontaminated air with contaminated air is decreased, so that the number of dust collecting systems per unitary length of a tunnel is increased, whereby the air decontamination degree in the tunnel is improved.
  • the air blowing direction forms an cubical angle of 5 to 12° with the central axis of the tunnel.
  • the decontaminated air blowing direction of the air blowers are set slightly downwardly outwardly with respect to the central axis of the tunnel so as to form spiral air streams in the tunnel thereby to quickly mix the decontaminated air with the contaminated air in the tunnel.
  • a ceiling board 5 having a predetermined length is installed in a tunnel 1 to form a dust collecting chamber 2 in the upper portion of the tunnel.
  • the left end of the dust collecting chamber 2 is an air sucking end 2a
  • the right end is an air supplying end 2b.
  • Two dust collectors 3 are arranged along the right and left side walls of the dust collecting chamber 2, respectively, in such a manner that they are positioned staggered in the dust collecting chamber 2, or they are arranged as if overlapped as viewed from the air sucking end of the dust collecting chamber.
  • the dust collecting chamber 2 is separated into two right and left air flow chambers with a partition wall 6 extended along the central axis of the dust collecting chamber 2 in such a manner that the right and left air flow chambers have the two dust collectors 3, respectively.
  • Two axial-flow type air blowers 4 are connected to the right and left air flow chambers at the air supplying end.
  • Each of the air blowers 4 comprises a cylindrical casing, and an impeller and a drive motor which are built in the casing.
  • Each of the air blowers 4 has an air supplying outlet 4a with a nozzle 13 for determining its air blowing direction. The nozzles 13 are directed slightly downwardly outwardly with respect to the central axis of the tunnel 1.
  • the contaminated air in the driveway space la in the tunnel 1 is led into the dust collecting chamber 2 through the air sucking inlets 7 at the air sucking end 2a.
  • the contaminated air thus led is decontaminated with the dust collectors 3.
  • the air thus decontaminated is supplied into the driveway space la through the nozzles 13 of the air blowers 4.
  • the decontaminated air blown through the nozzles 13 forms a pair of spiral air streams in the driveway space la as indicated by the broken lines in Fig. 1.
  • the decontaminated air supplied through the nozzles mixes with the contaminated air in the driveway space la in a short time while winding the latter. It has been confirmed through experiments that the distance required for the decontaminated air to mixed with the contaminated air in the driveway space is shorter about 10% than in the conventional tunnel dust collecting system.
  • the tunnel dust collecting system of the invention has the following effects or merits:
  • the nozzle is connected to the air outlet of each of the air blowers in such a manner that the decontaminated air is blown downwardly outwardly with respect to the central axis of the tunnel.
  • the distance is reduced which is required for the decontaminated air supplied from the dust collector to mix the contaminated air in the tunnel, and accordingly the number of dust collecting systems per unitary length of a tunnel can be increased as much.
  • the tunnel dust collecting system of the invention even a tunnel high in air contamination can be sufficiently ventilated.

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)
  • Electrostatic Separation (AREA)
  • Ventilation (AREA)

Claims (1)

  1. Ein System zum Aufsammeln von Staub in einem Tunnel mit:
    einer Staubsammelkammer (2), die im oberen Raumbereich eines Tunnels (1) mit einer Deckentafel (5) so gebildet ist, daß die Staubsammelkammer ein Ende besitzt, das als ein Luftansaugende (2a) dient, und daß das andere Ende als ein Lufteinspeisungsende (2b) dient;
    in der Staubsammelkammer (2) angeordnete elektrischen Staubsammlern (3), und Luftgebläsen (4) in der Staubsammelkammer (2) am Lufteinspeiseende (2b); und
    einer Luftauslaß-Lenkvorrichtung, die die gereinigte Luft leicht nach unten und außen mit Bezug zu der zentralen Achse des Tunnels lenkt,
    dadurch gekennzeichnet, daß
    die Auslaß-Lenkvorrichtung eine Düse (13) ist, die mit einem Luftauslaß (4a) verbunden ist, wobei die Düse (13) bezüglich der zentralen Achse des Tunnels leicht nach unten und außen gerichtet ist.
EP95107725A 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel Expired - Lifetime EP0675263B1 (de)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
JP193523/89 1989-07-26
JP19352389 1989-07-26
JP19352389 1989-07-26
JP21775389 1989-08-24
JP21775189 1989-08-24
JP217760/89 1989-08-24
JP21776089 1989-08-24
JP217753/89 1989-08-24
JP21776089 1989-08-24
JP21775189 1989-08-24
JP21775389 1989-08-24
JP217751/89 1989-08-24
EP90114281A EP0410428B1 (de) 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP90114281A Division EP0410428B1 (de) 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel
EP90114281.0 Division 1990-07-25

Publications (2)

Publication Number Publication Date
EP0675263A1 EP0675263A1 (de) 1995-10-04
EP0675263B1 true EP0675263B1 (de) 1999-12-01

Family

ID=27475654

Family Applications (4)

Application Number Title Priority Date Filing Date
EP90114281A Expired - Lifetime EP0410428B1 (de) 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel
EP94106613A Expired - Lifetime EP0613994B1 (de) 1989-07-26 1990-07-25 System zum Absaugen von Staub in Tunneln
EP93112603A Expired - Lifetime EP0577153B1 (de) 1989-07-26 1990-07-25 Aerodynamischer Lufteinlass einer Tunnelbelüftungseinrichtung
EP95107725A Expired - Lifetime EP0675263B1 (de) 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP90114281A Expired - Lifetime EP0410428B1 (de) 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel
EP94106613A Expired - Lifetime EP0613994B1 (de) 1989-07-26 1990-07-25 System zum Absaugen von Staub in Tunneln
EP93112603A Expired - Lifetime EP0577153B1 (de) 1989-07-26 1990-07-25 Aerodynamischer Lufteinlass einer Tunnelbelüftungseinrichtung

Country Status (2)

Country Link
EP (4) EP0410428B1 (de)
DE (4) DE69028818T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9416975D0 (en) * 1994-08-23 1994-10-12 South Bank Univ Entpr Ltd Air moving system
US6224796B1 (en) 1998-08-19 2001-05-01 CENTRE DE RECHERCHE INDUSTRIELLE DU QUéBEC Process for producing batches of rubber-based composition
AU6253300A (en) * 1999-08-02 2001-02-19 Rosenbauer International Aktiengesellschaft Device and methods for combating accidents in a tunnel
ATE273444T1 (de) * 1999-09-02 2004-08-15 Rud Otto Meyer Gmbh & Co Kg Verfahren und absauganlage zum entlüften bzw. rauchgasabsaugen in einem tunnel
DE10136097C2 (de) * 2001-06-13 2003-10-16 Thyssenkrupp Hiserv Gmbh Absaugvorrichtung für einen Tunnel
EP1329588A1 (de) * 2002-01-17 2003-07-23 Alexander Fasnacht Einrichtung zur Zuführung von Atemluft in einen tunnelartigen Durchgang
DE102009054031A1 (de) * 2009-11-20 2011-05-26 Wu, Fu-Chi, Northridge Luftbehandlungsgerät
CN102125787B (zh) * 2010-01-19 2013-04-10 哈尔滨辰能工大环保科技股份有限公司 径流式长袋低压脉冲袋式除尘器
CN101906986A (zh) * 2010-07-09 2010-12-08 胜利油田胜利动力机械集团有限公司 煤矿乏风装置进、排气气流分配方法
CN102080558B (zh) * 2010-11-08 2013-01-02 上海市城市建设设计研究院 一种道路隧道无排风井净化排风的方法
CN104071241B (zh) * 2014-05-27 2016-06-29 浙江大学 一种公路隧道空气除尘车及其除尘方法
CN104475252B (zh) * 2014-12-04 2018-03-02 佛山市科蓝环保科技股份有限公司 一种隧道空气净化设备
CN104948216B (zh) * 2015-06-04 2017-06-16 浙江海洋学院 一种隧道用排水排风两用格栅
CN106761890B (zh) * 2017-01-11 2018-11-20 中国矿业大学 一种隧道施工除尘除烟辅助通风装置
EP3619435A1 (de) 2017-05-04 2020-03-11 Mosen Ltd Optimierte tunnelbelüftungsvorrichtung
CN108979697B (zh) * 2018-08-09 2019-10-25 湖南科技大学 隧道开式循环通风的送风竖井新风风量折减系数计算方法
CN110159336A (zh) * 2019-05-22 2019-08-23 中煤科工集团重庆研究院有限公司 一种适用于除尘器的除杂装置
CN111520179B (zh) * 2020-05-19 2021-11-16 安徽宝龙电器有限公司 一种矿用本质安全性烟雾控制装置
CN116025406B (zh) * 2023-02-21 2024-01-02 中南大学 一种隧道除尘系统及其除尘方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1226629A (fr) * 1959-02-25 1960-07-13 Neu Sa Procédé et dispositif pour la ventilation d'un tunnel ferroviaire et routier
DE1459883C3 (de) * 1963-03-26 1974-05-02 J.M. Voith Gmbh, 7920 Heidenheim Einrichtung zur Längsbelüftung eines Tunnels
CH433424A (de) * 1964-06-09 1967-04-15 Shb Installations Projekt Ag Lüftungseinrichtung in Strassentunnel
AT308807B (de) * 1968-01-15 1973-06-15 Sina In Nat Autostradali Anlage zur laengsbelueftung eines einbahnigen tunnels
FR2253877A1 (en) * 1973-12-05 1975-07-04 Sofrair Pressure fed air ventilation for road tunnel - directs air tangentially down side wall from roof inlets
DE2509279A1 (de) * 1975-03-04 1976-09-16 Voith Getriebe Kg Belueftungseinrichtung fuer den innenraum einer kuenstlichen strassenueberdeckung
DE3608308C1 (de) * 1986-03-13 1987-01-08 Turbo Lufttechnik Gmbh Einrichtung zur Belueftung eines Tunnels
JPH0754080B2 (ja) * 1987-06-23 1995-06-07 富士電機株式会社 道路用トンネルの集じん設備

Also Published As

Publication number Publication date
DE69031600D1 (de) 1997-11-20
EP0410428A2 (de) 1991-01-30
DE69028818D1 (de) 1996-11-14
DE69033378T2 (de) 2000-04-06
EP0675263A1 (de) 1995-10-04
EP0410428A3 (en) 1991-08-28
DE69031600T2 (de) 1998-02-12
EP0613994B1 (de) 1997-10-15
EP0577153A1 (de) 1994-01-05
DE69029277T2 (de) 1997-03-27
DE69029277D1 (de) 1997-01-09
EP0410428B1 (de) 1996-10-09
EP0613994A1 (de) 1994-09-07
DE69028818T2 (de) 1997-02-13
EP0577153B1 (de) 1996-11-27
DE69033378D1 (de) 2000-01-05

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