CN204002896U - One-tunnel one-track subway tunnel natural ventilating structure - Google Patents
One-tunnel one-track subway tunnel natural ventilating structure Download PDFInfo
- Publication number
- CN204002896U CN204002896U CN201420175335.2U CN201420175335U CN204002896U CN 204002896 U CN204002896 U CN 204002896U CN 201420175335 U CN201420175335 U CN 201420175335U CN 204002896 U CN204002896 U CN 204002896U
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- China
- Prior art keywords
- tunnel
- track
- airshaft
- ventilating structure
- vertical portion
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Links
- 238000009423 ventilation Methods 0.000 abstract description 13
- 239000000779 smoke Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Abstract
The utility model discloses a kind of one-tunnel one-track subway tunnel natural ventilating structure, comprise one-tunnel one-track tunnel, it is characterized in that: described one-tunnel one-track tunnel top or side wall upper part evenly have a plurality of airshafts along the length direction in one-tunnel one-track tunnel, and described airshaft top is above ground level.While the utlity model has fire, under energy automatic smoke exhausting, normal condition, also can pass through the beneficial effect of piston effect natural ventilation.
Description
Technical field
The utility model relates to a kind of tunnel air discharge structure, specifically a kind of one-tunnel one-track subway tunnel natural ventilating structure.
Background technology
At present, the traditional ventilation system of subway sectional tunnel is, at platform two ends, piston vent is set, and in ventilating shaft, tunnel blower is set, as shielding gate-type, open type or the closed system of ventilation.When train is normally runed, rely on piston action of train to realize the ventilation of running tunnel, guarantee the normal running environment of train.Sooner or later also should open tunnel blower running tunnel is carried out to ventilation.When train during breaking out of fire, is realized longitudinal ventilation fume exhausting type by opening one or more groups tunnel blower in running tunnel.This running tunnel draft type energy consumption is larger, and train is when interval breaking out of fire, and passenger is one-way evacuation, is unfavorable for personnel escape and fire-fighting and rescue.Some shallow tunnel buried depths in city suburbs are many between 2m～10m, running tunnel adopts cut and cover tunneling, top possesses the condition of offering natural ventilation vertical shaft, and tunnel top is provided with greenbelt, periphery natural environment is better, can consider to adopt the mode of natural ventilation, the reliability of system improves and operation and maintenance cost reduces.In addition, the safe escape while considering Metro Train Fire, subway tunnel is generally the arrangement form that Huo Dan hole, one-tunnel one-track tunnel double track tunnel adds mid-board, and single hole double track tunnel adds mid-board and can be considered two one-tunnel one-track tunnels.Also there is no at present introduction and the discussion about one-tunnel one-track tunnel natural ventilation smoke method.
Utility model content
The purpose of this utility model is the deficiency existing in order to solve above-mentioned background technology, while proposing a kind of fire, under energy automatic smoke exhausting, normal condition, also can pass through the one-tunnel one-track subway tunnel natural ventilating structure of piston effect natural ventilation.
In order to realize above object, a kind of one-tunnel one-track subway tunnel natural ventilating structure that the utility model provides, comprise one-tunnel one-track tunnel, it is characterized in that: described one-tunnel one-track tunnel top or side wall upper part evenly have a plurality of airshafts along the length direction in one-tunnel one-track tunnel, and described airshaft top is above ground level.
Preferably, described airshaft is opened in single-track tunnel top, hole, and the height H of airshaft is not less than 5m, and the top of airshaft is not less than 2m apart from ground level, and the width W of airshaft is not less than half of one-tunnel one-track tunnel top width.
Preferably, described airshaft is located at one-tunnel one-track tunnel-side top, described airshaft consists of vertical portion and transverse part, described vertical portion is positioned at the outside in one-tunnel one-track tunnel, the top of vertical portion is above ground level, and the bottom of vertical portion is communicated with the side wall upper part in one-tunnel one-track tunnel by transverse part.
Preferably, in described transverse part, be provided with auxiliary exhaust blower.
Preferably, the vertical portion height H of described airshaft is not less than 5m, and the top of vertical portion is not less than 2m apart from ground level, and vertical portion width W is not less than half of one-tunnel one-track tunnel top width.
Preferably, the top open part of described airshaft is provided with grid.
Preferably, the space D of described adjacent two airshafts is not more than 80m.
Preferably, the area sum of described all airshaft cross sections be not less than one-tunnel one-track tunnel roof area 10%.
The beneficial effects of the utility model: offer the structure of airshaft at one-tunnel one-track subway tunnel top owing to adopting, when breaking out of fire, high-temperature flue gas can pass through airshaft Natural excrement tunnel, and the additionally auxiliary smoke evacuation of blower fan.Meanwhile, owing to discharging fume by blower fan in prior art, flue gas can be discharged along tunnel, therefore only has a direction to can be used as evacuating, unfavorable to fire-fighting and rescue; And in the utility model, during fire, high-temperature flue gas can be from the discharge of naturally rising of nearest airshaft, so the train left and right sides all can be used as passenger evacuation, and evacuation efficiency is better, be beneficial to fire-fighting and rescue.Finally, under the normal transport condition of train, rely on the piston action of train, still can realize natural ventilation ventilation, it is train head extruding air, its airshaft from the most close train head is discharged, and last vehicle of train vacuum action makes air enter in tunnel from the piston vertical shaft of close last vehicle of train simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2
Fig. 4 is the B-B sectional view of Fig. 2;
Fig. 5 is airshaft 2 structure charts of being located at one-tunnel one-track tunnel 1 side wall upper part;
The utility model schematic diagram when Fig. 6 is fire;
Fig. 7 is the utility model schematic diagram under normal condition;
In figure: one-tunnel one-track tunnel 1, airshaft 2, vertical portion 2.1, transverse part 2.2, port of export station 3, arrival end station 4, train 5, auxiliary exhaust blower 6, flue gas 7.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: as shown in Figures 1 to 4, the utility model relates to a kind of one-tunnel one-track subway tunnel natural ventilating structure, the port of export station 3 and the arrival end station 4 that comprise one-tunnel one-track tunnel 1 and be positioned at 1 two ends, one-tunnel one-track tunnel.1 top, described one-tunnel one-track tunnel is provided with an airshaft 2 along the length in one-tunnel one-track tunnel 1 every 80m, and airshaft 2 tops are above ground level.The height H of airshaft 2 is 5m, and the top of airshaft 2 is 2m apart from ground level, and the width W of airshaft 2 is consistent with one-tunnel one-track tunnel 1 top width.The top open part of airshaft 2 is provided with grid.
As shown in Figure 5, if airshaft 2 is limited by ground structure, 1 top, one-tunnel one-track tunnel cannot directly be offered airshaft 2 or airshaft 2 and offer area and be subject in limited time, and airshaft 2 is located at one-tunnel one-track tunnel 1 side wall upper part.Airshaft 2 consists of vertical portion 2.1 and transverse part 2.2, and described vertical portion 2.1 is positioned at the outside in one-tunnel one-track tunnel 1, and the top of vertical portion 2.1 is above ground level, and the bottom of vertical portion 2.1 is communicated with the side wall upper part in one-tunnel one-track tunnel 1 by transverse part 2.2.In transverse part 2.2, be provided with auxiliary exhaust blower 6.The height H of airshaft 2 is 5m, and the top of airshaft 2 is 2m apart from ground level, vertical portion 2.1 width W of airshaft 2 and one-tunnel one-track tunnel 1 top width consistent.
For guarantee ventilating and smoke exhaust efficiency, the area sum of above-mentioned all airshaft 2 cross sections be not less than one-tunnel one-track tunnel 1 end face area 10%.
As shown in Figure 6, when train 5 breaking out of fire, high-temperature flue gas 7 can be from nearest airshaft 2 discharge of naturally rising, so train 5 left and right sides all can be used as passenger evacuation, and evacuation efficiency is better, be beneficial to fire-fighting and rescue.If flue gas is not good at the emission effect of flowing through while being located at the airshaft 2 of one-tunnel one-track tunnel 1 side wall upper part, can opens auxiliary exhaust blower 6 and accelerate smoke evacuation.
As shown in Figure 7, when train 5 normally travels, train 5 head extruding air, discharge its airshaft 2 from the most close train 5 heads, train 5 afterbody vacuum action make air enter in tunnel from the piston vertical shaft 2 of the most close train 5 afterbodys simultaneously, with this piston action, realize ventilation.
The above, be only preferred embodiment of the present utility model, not structure of the present utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.
Claims (8)
1. an one-tunnel one-track subway tunnel natural ventilating structure, comprise one-tunnel one-track tunnel (1), it is characterized in that: (1) top, described one-tunnel one-track tunnel or side wall upper part evenly have a plurality of airshafts (2) along the length direction of one-tunnel one-track tunnel (1), and described airshaft (2) top is above ground level.
2. one-tunnel one-track subway tunnel natural ventilating structure according to claim 1, it is characterized in that: described airshaft (2) is opened in top, one-tunnel one-track tunnel (1), the height H of airshaft (2) is not less than 5m, the top of airshaft (2) is not less than 2m apart from ground level, and the width W of airshaft (2) is not less than half of one-tunnel one-track tunnel (1) top width.
3. one-tunnel one-track subway tunnel natural ventilating structure according to claim 1, it is characterized in that: described airshaft (2) is located at one-tunnel one-track tunnel (1) side wall upper part, described airshaft (2) consists of vertical portion (2.1) and transverse part (2.2), described vertical portion (2.1) is positioned at the outside of one-tunnel one-track tunnel (1), the top of vertical portion (2.1) is above ground level, and the bottom of vertical portion (2.1) is communicated with the side wall upper part of one-tunnel one-track tunnel (1) by transverse part (2.2).
4. one-tunnel one-track subway tunnel natural ventilating structure according to claim 3, is characterized in that: in described transverse part (2.2), be provided with auxiliary exhaust blower (6).
5. one-tunnel one-track subway tunnel natural ventilating structure according to claim 3, it is characterized in that: vertical portion (2.1) height H of described airshaft (2) is not less than 5m, the top of vertical portion (2.1) is not less than 2m apart from ground level, and vertical portion (2.1) width W is not less than half of one-tunnel one-track tunnel (1) top width.
6. one-tunnel one-track subway tunnel natural ventilating structure according to claim 1, is characterized in that: the top open part of described airshaft (2) is provided with grid.
7. one-tunnel one-track subway tunnel natural ventilating structure according to claim 1, is characterized in that: the space D of described adjacent two airshafts (2) is not more than 80m.
8. one-tunnel one-track subway tunnel natural ventilating structure according to claim 1, is characterized in that: the area sum of described all airshafts (2) cross section be not less than one-tunnel one-track tunnel (1) end face area 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175335.2U CN204002896U (en) | 2014-04-11 | 2014-04-11 | One-tunnel one-track subway tunnel natural ventilating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175335.2U CN204002896U (en) | 2014-04-11 | 2014-04-11 | One-tunnel one-track subway tunnel natural ventilating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002896U true CN204002896U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175335.2U Expired - Lifetime CN204002896U (en) | 2014-04-11 | 2014-04-11 | One-tunnel one-track subway tunnel natural ventilating structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863712A (en) * | 2016-06-12 | 2016-08-17 | 中铁上海工程局集团有限公司 | Vertical honeycomb type tunnel ventilation device |
| CN106121707A (en) * | 2016-08-19 | 2016-11-16 | 中铁隧道勘测设计院有限公司 | The most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel and method of ventilation |
| CN106499428A (en) * | 2016-10-13 | 2017-03-15 | 同济大学 | Tunnel natural ventilation system |
| CN106703868A (en) * | 2016-08-29 | 2017-05-24 | 金斯科 | Natural ventilation and natural smoke extraction system for urban road tunnel |
| CN107387146A (en) * | 2017-08-17 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | Rail traveling region of subway station natural draught system, heat extraction and Tunnel Ventilation System and method |
| CN108915752A (en) * | 2018-08-09 | 2018-11-30 | 湖南科技大学 | Extra-long Highway Tunnel open circulation ventilation divides wind to determine method than number maximum |
| CN111894646A (en) * | 2020-06-29 | 2020-11-06 | 中铁第一勘察设计院集团有限公司 | Ventilating system and ventilating method for natural ventilation of ultra-long electrified railway |
-
2014
- 2014-04-11 CN CN201420175335.2U patent/CN204002896U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863712A (en) * | 2016-06-12 | 2016-08-17 | 中铁上海工程局集团有限公司 | Vertical honeycomb type tunnel ventilation device |
| CN106121707A (en) * | 2016-08-19 | 2016-11-16 | 中铁隧道勘测设计院有限公司 | The most two-tube municipal administration and highway are grown up the ventilating system of shield tunnel and method of ventilation |
| CN106121707B (en) * | 2016-08-19 | 2019-04-19 | 中铁第六勘察设计院集团有限公司 | Underwater two-tube municipal administration and highway are grown up the ventilating system and method for ventilation of shield tunnel |
| CN106703868A (en) * | 2016-08-29 | 2017-05-24 | 金斯科 | Natural ventilation and natural smoke extraction system for urban road tunnel |
| CN106499428A (en) * | 2016-10-13 | 2017-03-15 | 同济大学 | Tunnel natural ventilation system |
| CN107387146A (en) * | 2017-08-17 | 2017-11-24 | 中铁第四勘察设计院集团有限公司 | Rail traveling region of subway station natural draught system, heat extraction and Tunnel Ventilation System and method |
| CN108915752A (en) * | 2018-08-09 | 2018-11-30 | 湖南科技大学 | Extra-long Highway Tunnel open circulation ventilation divides wind to determine method than number maximum |
| CN108915752B (en) * | 2018-08-09 | 2019-09-17 | 湖南科技大学 | Extra-long Highway Tunnel open circulation ventilation divides wind to determine method than number maximum |
| CN111894646A (en) * | 2020-06-29 | 2020-11-06 | 中铁第一勘察设计院集团有限公司 | Ventilating system and ventilating method for natural ventilation of ultra-long electrified railway |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |