EP0577153B1 - Aerodynamischer Lufteinlass einer Tunnelbelüftungseinrichtung - Google Patents

Aerodynamischer Lufteinlass einer Tunnelbelüftungseinrichtung Download PDF

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Publication number
EP0577153B1
EP0577153B1 EP93112603A EP93112603A EP0577153B1 EP 0577153 B1 EP0577153 B1 EP 0577153B1 EP 93112603 A EP93112603 A EP 93112603A EP 93112603 A EP93112603 A EP 93112603A EP 0577153 B1 EP0577153 B1 EP 0577153B1
Authority
EP
European Patent Office
Prior art keywords
dust collecting
air
tunnel
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
EP93112603A
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English (en)
French (fr)
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EP0577153A1 (de
Inventor
Shogo C/O Fuji Electric Co. Ltd. Nakamura
Toshiharu C/O Fuji Electric Co. Ltd. Sasamoto
Yoshihiro C/O Fuji Electric Co. Ltd. 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
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Fuji Electric Co Ltd
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Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of EP0577153A1 publication Critical patent/EP0577153A1/de
Application granted granted Critical
Publication of EP0577153B1 publication Critical patent/EP0577153B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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 claim 1 in which an electrical dust collector is used to remove dust and smoke from the contaminated air in a tunnel thereby to use the air again, and more particularly to a tunnel dust collecting system which is installed on the ceiling of a tunnel which is provided mainly for automobiles.
  • 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 (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 air sucking end 2a of the dust collecting chamber 2 is employed as the air sucking inlets 7.
  • a tunnel dust collecting system of ceiling installation type in which, as shown in Fig. 4 , the end of the dust collecting chamber corresponding to the above-described air sucking end is closed, and instead an air sucking inlet is opened in the end portion of the ceiling board 5 (hereinafter referred to as "a tunnel dust collecting system of upward suction type", when applicable).
  • the air sucking end 2a of the dust collecting chamber 2 defined by the ceiling board 5 is closed with a closing board 8, and instead a rectangular-window-shaped air sucking inlet 9 is formed in the ceiling board 5 near the closing board 8.
  • the contaminated air in the tunnel is led through the air sucking inlet 9 into the dust collecting chamber as indicated by the arrows, and decontaminated with the dust collectors 3.
  • the air thus decontaminated is supplied into the tunnel with the air blowers 4.
  • a tunnel dust collecting system is known from JP-A-63-319 072.
  • An air ventilation system rather than a dust collecting system is shown in CH-A-433424 and showing an opening in the ceiling board formed as a long slot having rounded edges.
  • the shape of the slot is determined in order to equalize the pressure distribution along the channel of the ventilation system by equalizing a friction term and a term taking account of pressure change due to release or introduction of a side stream along the channel length.
  • the air sucking inlet 9 is formed in the ceiling board 5 in such a manner that its edges are perpendicular to the ceiling board. Therefore, as shown in Fig. 5 , the air sucked into the dust collecting chamber 2 forms a contraction flow; that is, the air sucked into the dust collecting chamber tends to concentrate at the center of the dust collector 3 leaving the front and rear edges 9a an 9b of the air sucking inlet 9. As a result, only 85 to 90% of the capacity of the dust collector is used, and the pressure loss at the air sucking inlet 9 is as high as 5 to 10%.
  • 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 the invention is to provide a tunnel dust collecting system of upward suction type which is high in dust collection efficiency being free from the above-described difficulties and in which the dust collectors are made to work at their full capacity.
  • the air sucking inlet formed in the ceiling board has a first wall upstream thereof the upper and lower edges of which are rounded continuously with a first radius R 1 and a second radius R 2 smaller than the first radius, respectively, and a second wall downstream thereof the upper and lower edges of which are rounded continuously with the second and first radii, respectively.
  • R 1 t to 3t
  • R 2 t/5 to t/3, where t is the thickness of the ceiling board.
  • the air sucking inlet formed in the ceiling board has a first wall upstream thereof and a second wall downstream thereof whose upper and lower edges are continuously rounded with two different radii in such a manner that the first and second walls are inclined in the direction of air stream.
  • a tunnel dust collecting system of upward suction type is a shown in Fig. 1 .
  • contaminated air is led into a dust collecting chamber 2 through an air sucking inlet 9 as indicated by the arrows.
  • the air sucking inlet 9 has an upstream wall 9a and a downstream wall 9b which are curved in section inwardly. More specifically, the lower and upper edges of the upstream wall 9a are continuously rounded with radii R 1 and R 2 (R 1 > R 2 ), respectively; and similarly, the lower and upper edges of the downstream wall 9b are continuously rounded with radii R 2 and R 1 , respectively.
  • the contaminated air is sucked through the air sucking inlet 9 into the dust collecting chamber 2 obliquely upwardly along the gradients of the upstream and downstream walls 9a and 9b. Therefore, the air thus sucked is allowed to go along the ceiling board, thus forming no contraction flow.
  • the air flows to substantially the whole of the air sucking surface of the dust collector 3, so that it is decontaminated with high efficiency contacting the electrode boards not shown. In addition, the pressure loss at the air sucking inlet 9 is minimized.
  • the tunnel dust collecting system of the invention has the following effects or merits:
  • the air sucking inlet formed in the ceiling board has the first wall upstream thereof the lower and upper edges of which are rounded continuously with the first radius and the second radius smaller than the first radius, respectively, and the second wall downstream thereof the lower and upper edges of which are rounded continuously with the second and first radii, respectively.

Claims (1)

  1. Ein System zum Sammeln von Staub in einem Tunnel mit: einer Staubsammelkammer (2), die in dem oberen Raum eines Tunnels (1) mit einer Deckenplatte (5) auf solche Weise ausgebildet ist, daß die Staubsammelkammer (2) ein als Luftansaugende (2a) dienendes Ende aufweist und das andere Ende als ein Luftbereitstellungsende (2b) dient; in der Staubsammelkammer (2) angeordneten elektrischen Staubsammlern; einem in der Deckentafel (5) in der Nähe des Luftansaugendes (2a) ausgebildeten Luftansaugeinlaß (9); und mit Luftgebläsen (4) in der Staubsammelkammer an dem Luftbereitstellungsende (3b); dadurch gekennzeichnet, daß der Luftansaugeinlaß (9) eine erste stromaufwärts gelegene Wand (9a) aufweist, deren untere und obere Kanten kontinuierlich jeweils mit einem ersten Radius (R1) und einem zweiten Radius (R2), der kleiner ist als der erste Radius (R1), abgerundet sind, und eine davon stromabwärts gelegene zweite Wand (9b), deren untere und obere Kanten kontinuierlich jeweils mit dem zweiten (R2) und dem ersten (R1) Radius abgerundet sind.
EP93112603A 1989-07-26 1990-07-25 Aerodynamischer Lufteinlass einer Tunnelbelüftungseinrichtung Expired - Lifetime EP0577153B1 (de)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP19352389 1989-07-26
JP193523/89 1989-07-26
JP217760/89 1989-08-24
JP21775189 1989-08-24
JP21776089 1989-08-24
JP21775389 1989-08-24
JP217753/89 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 (1)

Application Number Title Priority Date Filing Date
EP90114281.0 Division 1990-07-25

Publications (2)

Publication Number Publication Date
EP0577153A1 EP0577153A1 (de) 1994-01-05
EP0577153B1 true EP0577153B1 (de) 1996-11-27

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 (2)

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

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP95107725A Expired - Lifetime EP0675263B1 (de) 1989-07-26 1990-07-25 System zum Auffangen von Staub im Tunnel

Country Status (2)

Country Link
EP (4) EP0410428B1 (de)
DE (4) DE69033378T2 (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
US11655712B2 (en) 2017-05-04 2023-05-23 Mosen Ltd Optimised tunnel ventilation device
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
DE69028818T2 (de) 1997-02-13
EP0613994B1 (de) 1997-10-15
EP0675263B1 (de) 1999-12-01
DE69033378T2 (de) 2000-04-06
EP0577153A1 (de) 1994-01-05
EP0410428A2 (de) 1991-01-30
DE69029277D1 (de) 1997-01-09
DE69031600D1 (de) 1997-11-20
DE69028818D1 (de) 1996-11-14
EP0675263A1 (de) 1995-10-04
DE69033378D1 (de) 2000-01-05
EP0410428B1 (de) 1996-10-09
EP0613994A1 (de) 1994-09-07
DE69031600T2 (de) 1998-02-12
DE69029277T2 (de) 1997-03-27
EP0410428A3 (en) 1991-08-28

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