US2285387A - Ventilating installation in tunnels - Google Patents

Ventilating installation in tunnels Download PDF

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Publication number
US2285387A
US2285387A US184369A US18436938A US2285387A US 2285387 A US2285387 A US 2285387A US 184369 A US184369 A US 184369A US 18436938 A US18436938 A US 18436938A US 2285387 A US2285387 A US 2285387A
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United States
Prior art keywords
fresh air
air
chambers
tunnel
foul
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Expired - Lifetime
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US184369A
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English (en)
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Bartholomai Alfred
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Individual
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Individual
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    • 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

Definitions

  • Ventilating installations for vehicular roadway tunnels comprising independent Ventilating sections wherein fresh air is fed into the tunnel from slots at road level and foul air is removed through slots in the upper part of the tunnel are already know. It is also known to feed fresh air into the tunnel from the said slots in the upper part of the tunnel and remove foul air through the said slots at road level. 'I'hese installations give the better result when the fresh air is fed in from the slots at road level and foul air is removed from the slots in the upper part of the tunnel, but are not suciently efficient and flexible to cope with present day trame conditions in an economical manner.
  • the object of my invention is to provide a Ventilating installation which removes exhaust gases and foul air from the tunnel very efficiently and the action of which can be varied within Wide limits to suit exactly all conditions and fluctuations in conditions Without entailing high running costs.
  • Figure 2 is a View in cross-section through an under-water tunnel composed of tubes and illustrates another constructional example of a Ventilating installation in accordance with my invention.
  • Figure 3 is a fragmentary view in longitudinal section taken on a line corresponding with line a-b of Figure l.
  • Figure 4 is a fragmentary view in longitudinal section taken on a line corresponding with line c-d of Figure 1.
  • FIG 5 is a diagrammatic View in longitudinal section of a tunnel provided with a ventilating installation in accordance with Figures 1, 3 and 4.
  • section I'l comprises independent fresh air chambers 8, 8 and 8" and the section I8 comprises independent fresh air chambers S, 8', 8" and 8.
  • Each section is fed with fresh air from a separate station I6 furnished with the necessary air blowing plant.
  • the fresh air chambers of each section are connected to the air blowers of the respective station by independent fresh air feed canals I, whereby the said chambers can be separately and independently controlled.
  • the section I1 also comprises independent foul air chambers g, 9 and 9 and the sectionv I8 also comprises independent foul air chambers 9, 9', 9 and 9".
  • Each section has the foul air drawn from it to a separate station I5 furnished with the necessary exhausting plant.
  • Partitions I5 completely separate the fresh air chambers from each other and the foul air chambers from each other and each of the fresh air chambers 8, 8', 8 and 8" is connected to its respective station by a separate fresh air conduit I whereby the said chambers can be fed independently with fresh air.
  • Each of the foul air chambers 9, 9', 9" and 9" is connected to its respective station by a separate foul air conduit 6 whereby the said chambers can be exhausted independently from each other.
  • Partitions 'I separate the fresh air chambers from each other and the foul air chambers from each other.
  • the fresh air chambers are situated. in the upper part of the tunnel and communicated separately with the interior thereof .by means of fresh air slots 3, there being a plurality of slots 3 for each fresh air chamber.
  • the foul air chambers are disposed at the sides of the roadway, whose level is indicated by the reference 2.
  • Pedestrian pavements I4 are provided above the foul air chambers and foul air conduits.
  • Each foul air chamber communicates separately with the interior of the tunnel by means of foul air exhausting slots 5 and, as shown, all the slots 5 are situated at about that height above the road level 2 at which exhaust gases are discharged from the vehicles passing through the tunnel.
  • the arrows indicate the general direction which the foul air and more particularly the exhaust gases are caused to take when being drawn through the foul air slots 5 into the foul air chambers 9, 9', 9 and 9.
  • circulation of fresh air is in a downward direction whilst withdrawal of exhaust gases is in a substantially horizontal or rising direction.
  • the exhaust gases are withdrawn exactly ⁇ at the side of the zone which they occupy when discharged by the vehicles and this withdrawal, coupled with the downward flow of fresh air to the slots 5, prevents contamination of the air at breathing and sight height with combustion products and consequently ensures healthy air for breathing at breathing height and an absence of haze or reduction of visibility at sight height.
  • the ideal breathing and sight conditions can be maintained uniformly at every part of each section, because the strength of distribution of fresh air withdrawal of foul air is uniform at every part of the section.
  • the rate and kind of ventilation within the tunnel can be varied within wide limits to produce over the whole length of each section a uniform state of efcient ventilation to suit all rates of flow and kinds of traic through the tunnel and compensate for all momentary uctuations in the rates of flow and kinds of traffic through the tunnel.
  • the length ⁇ and width of the fresh air chambers and foul air chambers conform to the local and aerotechnical conditions.
  • the fresh air slots 3 open into the tunnel at the longitudinal middle of the fresh air chambers.
  • the fresh air chambers 8, 8', 8 and 8' widen towards the fresh air feed slots 3.
  • I2 are guide walls provided in the fresh air feed chambers 8, 8', 8 and 8" and so formed and positioned as yto produce a uniform distribution of air to the slots 3.
  • Guide walls I3 are provided in the foul air chambers to produce uniformity of withdrawal of foul air through the slots 5 of each foul air chamber.
  • I0 are conduits in the upper part of the tunnel for a compressed air-water mistI production. The action of this production increases the advantageous effects of the hereinbefore described Ventilating installation.
  • I I is a water-removal canal.
  • a ventilation installation in a vehicular roadway tunnel comprising in combination, a plurality of independent Ventilating sections into which the length of the installation is divided, a plurality of independently controllable fresh air feed chambers in each section, fresh air feed slots situated in the upper part of the tunnel and independently connecting each fresh air feed chamber to the interior of the tunnel, means for feeding fresh air independently and separately to each of the said chambers, a plurality of independently controllable foul air chambers in each section, foul air exhausting slots situated at about that height above the road level at which the exhaust gases are discharged from vehicles and independently connecting each foul air chamber to the interior of the tunnel at an elevation which about equals the elevation of emission of the exhaust gases from the said vehicles, and means for withdrawing foul air independently and separately from each of the said chambers and discharging it to atmosphere.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Ventilation (AREA)
US184369A 1937-01-23 1938-01-11 Ventilating installation in tunnels Expired - Lifetime US2285387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH487138X 1937-01-23

Publications (1)

Publication Number Publication Date
US2285387A true US2285387A (en) 1942-06-09

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US184369A Expired - Lifetime US2285387A (en) 1937-01-23 1938-01-11 Ventilating installation in tunnels

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US (1) US2285387A (fr)
FR (1) FR832206A (fr)
GB (1) GB487138A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991807A (en) * 1956-06-04 1961-07-11 Roland P Turner Conduit
US2996973A (en) * 1958-02-27 1961-08-22 Svenska Flaektfabriken Ab Arrangement for an adjustable ventilation in tunnels or similar spaces
US3434267A (en) * 1964-09-03 1969-03-25 Messen Jaschin G A Apparatus for purifying air
EP1081331A1 (fr) * 1999-09-02 2001-03-07 Rud. Otto Meyer GmbH & Co. KG Procédé et système d'aspiration pour la ventilation, p.e. de fumée dans des tunnels
US6210456B1 (en) * 1998-04-08 2001-04-03 Brian J. Bailie Exhaust system for drive-thru bays
US20130137356A1 (en) * 2010-07-27 2013-05-30 Ivor Pavetic Method And System For Tunnel Ventilation In Normal Conditions And In Conditions Of Fire
CN104564121A (zh) * 2015-01-08 2015-04-29 孙辉 一种山体隧道内空气净化系统的实现方法
CN104727841A (zh) * 2015-01-16 2015-06-24 孙辉 排风式空气净化隧道结构
CN104727842A (zh) * 2015-01-16 2015-06-24 孙辉 排风与鼓风式配合净化空气的山体隧道结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080560B (zh) * 2010-12-15 2013-03-13 中铁隧道集团二处有限公司 长距离独头掘进隧道风室接力通风方法
CN112554931A (zh) * 2020-12-07 2021-03-26 西安石油大学 一种基于污染物浓度的隧道通风动态排风装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991807A (en) * 1956-06-04 1961-07-11 Roland P Turner Conduit
US2996973A (en) * 1958-02-27 1961-08-22 Svenska Flaektfabriken Ab Arrangement for an adjustable ventilation in tunnels or similar spaces
US3434267A (en) * 1964-09-03 1969-03-25 Messen Jaschin G A Apparatus for purifying air
US6210456B1 (en) * 1998-04-08 2001-04-03 Brian J. Bailie Exhaust system for drive-thru bays
EP1081331A1 (fr) * 1999-09-02 2001-03-07 Rud. Otto Meyer GmbH & Co. KG Procédé et système d'aspiration pour la ventilation, p.e. de fumée dans des tunnels
US20130137356A1 (en) * 2010-07-27 2013-05-30 Ivor Pavetic Method And System For Tunnel Ventilation In Normal Conditions And In Conditions Of Fire
US9752436B2 (en) * 2010-07-27 2017-09-05 Ivor Pavetic Method and system for tunnel ventilation in normal conditions and in conditions of fire
CN104564121A (zh) * 2015-01-08 2015-04-29 孙辉 一种山体隧道内空气净化系统的实现方法
CN104727841A (zh) * 2015-01-16 2015-06-24 孙辉 排风式空气净化隧道结构
CN104727842A (zh) * 2015-01-16 2015-06-24 孙辉 排风与鼓风式配合净化空气的山体隧道结构
CN104727842B (zh) * 2015-01-16 2018-12-07 林云清 排风与鼓风式配合净化空气的山体隧道结构

Also Published As

Publication number Publication date
GB487138A (en) 1938-06-15
FR832206A (fr) 1938-09-23

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