CN202325613U - Ventilation system for sector tunnel of subway - Google Patents
Ventilation system for sector tunnel of subway Download PDFInfo
- Publication number
- CN202325613U CN202325613U CN 201120444997 CN201120444997U CN202325613U CN 202325613 U CN202325613 U CN 202325613U CN 201120444997 CN201120444997 CN 201120444997 CN 201120444997 U CN201120444997 U CN 201120444997U CN 202325613 U CN202325613 U CN 202325613U
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- nozzles
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Abstract
The utility model relates to a ventilation system for a sector tunnel of a subway. The ventilation system comprises air outlets arranged at the top face or/and side face of the sector tunnel, wherein nozzles are connected to the air outlets, the number of the nozzles in the sector tunnel is at least two, at least one nozzle is arranged in a way of being opposite to or facing the other nozzle, and air valves are arranged at the air outlets. According to the ventilation system, airflows generated in the ventilation system can centralize along the air outlet directions of the nozzles and flow at a high speed through additionally arranging the nozzles on the air outlets and opening and closing the air valves, thus the strength and flow velocity of the airflows can be increased without increasing the number of turned-on tunnel fans, the motion range of the fans is small, the power consumption is low, the time that the airflows reach an accident sector is short, and the ventilation airflow distribution and personnel evacuation are facilitated; meanwhile, after the air outlet angles of the nozzles are optimized, the airflows are faster in speed and higher in strength after flowing out from the nozzles; and finally, the ventilation system is simple in structure, convenient in operation and suitable for tunnels.
Description
Technical field
The utility model relates to ventilation system, specifically a kind of subway sectional tunnel ventilation system.
Background technology
Before the utility model proposed, the air outlet of conventional subway system was set directly at the end face or the side of running tunnel, and the air-out wind direction of this air outlet is vertical with the travel direction of subway.Under the subway sectional tunnel accident conditions, according to existing " subway design specifications " 19.1.40 and 19.1.43 clause regulation (GB50157-2003), the ventilation wind speed should not be less than 2m/s between emergency area.Because the air-out wind direction of conventional subway system air outlet is vertical with the travel direction of subway, so the air in the running tunnel is difficult to flow to fixed-direction.Therefore; In order to satisfy the requirement of said ventilation wind speed; All tunnel blower fans (totally ten six) at each two station (totally four stations) before and after conventional subway system need be moved between emergency area simultaneously, the blower fan actuating range is bigger, and power consumption is high; And the time that air-flow arrives between emergency area is longer, is unfavorable for draft tissue and evacuating personnel.
The utility model content
The purpose of the utility model is in order to solve the deficiency that above-mentioned background technology exists, and proposes a kind of simple in structurely, easy to install, and the blower fan actuating range is little, and power consumption is low and can the directed subway sectional tunnel ventilation system that produces high velocity air.
For realizing that above-mentioned purpose the utility model adopts following technical scheme: a kind of subway sectional tunnel ventilation system; Comprise and be arranged on the running tunnel end face or/and the air outlet on the side; Be connected with spout on the said air outlet; The quantity of spout is at least two in the said running tunnel, have at least in this spout one with other spout dorsad or positioned opposite; Said air outlet place is provided with air-valve.Said spout has the effect of guiding drainage, and after adding spout on the air outlet, through the opening and closing air-valve, the air-flow that is produced in the ventilation system will be concentrated flow at high speed along the air-out direction of spout.Like this, need not just can increase current rate and flow velocity through increasing the quantity of opening the tunnel blower fan, the blower fan actuating range is little, and power consumption is low.
In the such scheme, the air-out direction of the spout that connects on the said end face air outlet and the angle of running tunnel center line are: 15～30 °, air-flow speed after spout flows out is faster like this, and intensity is higher.
In the such scheme, the air-out direction of the spout that connects on the air outlet of said side and the angle of running tunnel center line are: 30～40 °, air-flow speed after spout flows out is faster like this, and intensity is higher.
In the such scheme, said air-valve is mechanical air-valve or piston air-valve, certainly, also can adopt other air-valves according to actual needs.
The utility model is through adding spout on air outlet, and through the opening and closing air-valve, the air-flow that is produced in the ventilation system will be concentrated flow at high speed along the air-out direction of spout; Like this; Need not just can increase current rate and flow velocity through increasing the quantity of opening the tunnel blower fan, the blower fan actuating range is little, and power consumption is low; The time that air-flow arrives between emergency area is short, helps draft tissue and evacuating personnel; Simultaneously, after the air-out angle optimization to spout, air-flow speed after spout flows out is faster, and intensity is higher; At last, the utility model is simple in structure, and is easy to operate.
In sum, the utlity model has simple in structurely, easy to install, the blower fan actuating range is little, and power consumption is low and can directedly produce characteristics such as high velocity air.
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
Description of drawings
Fig. 1 is the user mode structural representation of the utility model;
Fig. 2 is the air outlet of running tunnel end face and the position relational structure sketch map of spout;
Fig. 3 is that the A-A of Fig. 2 is to cross-sectional view;
Fig. 4 is the air outlet of running tunnel side and the position relational structure sketch map of spout;
Fig. 5 is that the B-B of Fig. 4 is to cross-sectional view.
In the drawings, running tunnel 1, end face 2, side 3, air outlet 4, spout 5, air-valve 6, running tunnel center line 7.
The specific embodiment
A kind of subway sectional tunnel ventilation system as shown in Figure 1; Comprise and be arranged on running tunnel 1 end face 2 or/and the air outlet 4 on the side 3; Be connected with spout 5 on the said air outlet 4; The quantity of spout 5 is at least two in the said running tunnel 1, have at least in this spout 5 one with other spout 5 dorsad or positioned opposite; Said air outlet 4 places are provided with air-valve 6.Said spout 5 has the effect of guiding drainage, and after adding spout 5 on the air outlet 4, through opening and closing air-valve 6, the air-flow that is produced in the ventilation system will be concentrated flow at high speed along the air-out direction of spout 5.Like this, need not just can increase current rate and flow velocity through increasing the quantity of opening the tunnel blower fan, the blower fan actuating range is little, and power consumption is low.Said air-valve 6 is mechanical air-valve or piston air-valve, certainly, also can adopt other air-valves according to actual needs.
As shown in Figure 3, the air-out direction of the spout 5 that connects on said end face 2 air outlets 4 and the angle of running tunnel center line 7 are: 15～30 °, air-flow speed after spout 5 flows out is faster like this, intensity higher (referring to Fig. 2).
As shown in Figure 4, the air-out direction of the spout 5 that connects on 3 air outlets 4 of said side and the angle of running tunnel center line 7 are: 30～40 °, air-flow speed after spout 5 flows out is faster like this, intensity higher (referring to Fig. 5).
In the utility model use:
When normal operation, spout 5 is closed, and relies on the train piston effect to running tunnel 1 ventilation;
When breaking down; Judge earlier air-flow needs to which side to flow; According to the air-valve 6 of the required flow direction opening and closing correspondence position of air-flow, open the tunnel blower fan at last the fault section tunnel is carried out air draft then, blow through 5 pairs of these fault section tunnels of spout simultaneously.
The utility model is through adding spout 5 on air outlet 4, and through opening and closing air-valve 6, the air-flow that is produced in the ventilation system will be concentrated flow at high speed along the air-out direction of spout 5; Like this; Need not just can increase current rate and flow velocity through increasing the quantity of opening the tunnel blower fan, the blower fan actuating range is little, and power consumption is low; The time that air-flow arrives between emergency area is short, helps draft tissue and evacuating personnel; Simultaneously, after the air-out angle optimization to spout 5, air-flow speed after spout 5 flows out is faster, and intensity is higher.The utility model is simple in structure, and is easy to install, and the blower fan actuating range is little, and power consumption is low and can directedly produce high velocity air.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. subway sectional tunnel ventilation system; Comprise and be arranged on running tunnel (1) end face (2) or/and the air outlet (4) on side (3); It is characterized in that being connected with on the said air outlet (4) spout (5); The quantity of the interior spout of a said running tunnel (1) (5) is at least two, have at least in this spout (5) one with other spout (5) dorsad or positioned opposite; Said air outlet (4) locates to be provided with air-valve (6).
2. a kind of subway sectional tunnel ventilation system according to claim 1 is characterized in that said end face (2) air outlet (4) is gone up the air-out direction of the spout (5) that connects and the angle of running tunnel center line (7) is: 15～30 °.
3. a kind of subway sectional tunnel ventilation system according to claim 1 and 2 is characterized in that said side (3) air outlet (4) is gone up the air-out direction of the spout (5) that connects and the angle of running tunnel center line (7) is: 30～40 °.
4. a kind of subway sectional tunnel ventilation system according to claim 1 and 2 is characterized in that said air-valve (6) is mechanical air-valve or piston air-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120444997 CN202325613U (en) | 2011-11-11 | 2011-11-11 | Ventilation system for sector tunnel of subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120444997 CN202325613U (en) | 2011-11-11 | 2011-11-11 | Ventilation system for sector tunnel of subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325613U true CN202325613U (en) | 2012-07-11 |
Family
ID=46437595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120444997 Expired - Lifetime CN202325613U (en) | 2011-11-11 | 2011-11-11 | Ventilation system for sector tunnel of subway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325613U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244165A (en) * | 2013-04-26 | 2013-08-14 | 西安建筑科技大学 | Collision-type respiratory zone air supply system |
| CN103438011A (en) * | 2013-08-26 | 2013-12-11 | 浙江海洋学院 | Tunnel ventilation fan with adjustable speed |
| CN105525936A (en) * | 2016-02-02 | 2016-04-27 | 招商局重庆交通科研设计院有限公司 | Ventilation control method for highway tunnel group |
-
2011
- 2011-11-11 CN CN 201120444997 patent/CN202325613U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244165A (en) * | 2013-04-26 | 2013-08-14 | 西安建筑科技大学 | Collision-type respiratory zone air supply system |
| CN103244165B (en) * | 2013-04-26 | 2015-05-20 | 西安建筑科技大学 | Collision-type respiratory zone air supply system |
| CN103438011A (en) * | 2013-08-26 | 2013-12-11 | 浙江海洋学院 | Tunnel ventilation fan with adjustable speed |
| CN105525936A (en) * | 2016-02-02 | 2016-04-27 | 招商局重庆交通科研设计院有限公司 | Ventilation control method for highway tunnel group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |