CN113339037B - Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct - Google Patents
Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct Download PDFInfo
- Publication number
- CN113339037B CN113339037B CN202110808794.4A CN202110808794A CN113339037B CN 113339037 B CN113339037 B CN 113339037B CN 202110808794 A CN202110808794 A CN 202110808794A CN 113339037 B CN113339037 B CN 113339037B
- Authority
- CN
- China
- Prior art keywords
- tunnel
- air
- exhaust
- smoke
- station
- 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.)
- Active
Links
- 239000000779 smoke Substances 0.000 title claims abstract description 210
- 238000009423 ventilation Methods 0.000 title claims abstract description 76
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 11
- 239000003517 fume Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000003584 silencer Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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)
- Ventilation (AREA)
Abstract
The invention provides a point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top air duct, which relates to the technical field of tunnel safety, wherein two ventilation subsystems are respectively arranged at the left end and the right end of a platform, and the ventilation subsystems comprise: the platform smoke outlet is arranged at the platform; the point type smoke exhaust port is arranged in the station tunnel; the section tunnel smoke outlet is arranged in the section tunnel; the piston air shaft is communicated with the section tunnel smoke outlet; the invention discloses a point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top air duct, which obtains the same air exhaust and smoke exhaust effects under the condition of canceling the rail top air duct, simplifies the construction process of station civil engineering, and shortens the civil engineering construction period and difficulty.
Description
Technical Field
The invention relates to the technical field of tunnel safety, in particular to a point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top air duct.
Background
Urban underground rail transit is an important component of modern urban public transport, and has become the first choice of transportation means for citizens in large and medium cities to go out at present. The subway station and the station tunnel are underground closed spaces with dense people flow, so the station tunnel ventilation system which has the functions of ventilation and heat dissipation at the top of the train during normal operation and blocking operation of the train, nearby smoke exhaust during fire of the station tunnel and auxiliary smoke exhaust during fire of a platform public area has no obvious significance to the subway system.
The traditional underground station tunnel ventilation system consists of a station tunnel exhaust fan, a silencer, an air valve, a fire prevention valve and other equipment, a power distribution and control unit, a rail top air duct and a rail bottom air duct. With the development of train technology, more and more lines begin to adopt the mode that a brake resistor is set away from a train or is subjected to inversion feedback regenerative braking, and heat generated by the train in the braking process is not dissipated in a tunnel or converted into electric energy to be fed back to a power grid. The existing research proves that: under the station train conflagration operating mode, if the participation of trackless top exhaust port and station heat extraction fan, the flue gas that the train produced is difficult to in time get rid of, and a large amount of flue gases spread to the public district of platform, lead to the flue gas to gather in a large number in public district, and public district flue gas temperature, visibility, carbon monoxide concentration, flue gas spread the scope and all are far greater than the operating mode of having the rail top exhaust port. The tunnel ventilation system of the station has great significance and cannot be cancelled. And the rail top air duct has the potential safety hazard of falling off under the condition of bearing the vibration load and the wind load of the train for a long time due to the reasons of suspension below the middle plate, large weight, weak tension capability of a reinforced concrete structure and the like.
Disclosure of Invention
The invention aims to provide a point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top air duct, which can meet the requirements of heat exhaust when a train stops and rapid and effective smoke exhaust when a fire disaster occurs in a station tunnel.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a point type of no rail top wind channel is aired exhaust and is discharged fume station tunnel ventilation system, has the platform in the station, the tunnel of platform side is the station tunnel, and adjacent two the tunnel between the station is interval tunnel, ventilation system includes two ventilation subsystems, two the ventilation subsystem is located respectively the left and right sides both ends of platform, the ventilation subsystem includes: the platform smoke outlet is arranged at the platform and used for discharging smoke at the platform; the point type smoke outlet is arranged in the station tunnel and used for discharging smoke in the station tunnel; the section tunnel smoke outlet is arranged in the section tunnel and used for discharging smoke in the station and the section tunnel; the piston air shaft is communicated with the section tunnel smoke outlet; and the air exhaust shaft is communicated with the platform smoke outlet and the point type smoke outlet.
Further, in the above point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top duct, the ventilation subsystem further includes a centralized smoke exhaust pipe, an air valve D8, an air valve D9, an air valve D10, an air valve D11, an air valve D12, and a heat exhaust fan; the platform smoke outlet is simultaneously communicated with one end of each of the two centralized smoke exhaust pipes, the other end of each centralized smoke exhaust pipe is communicated with one end of a conversion heat exhaust pipe, the other end of each conversion heat exhaust pipe is communicated with the air inlet end of the air exhaust fan, the air outlet end of the air exhaust fan is communicated with the air exhaust well, the air valve D10 and the air valve D11 are respectively arranged on the two centralized smoke exhaust pipes, and the air valve D8 is arranged between the air exhaust fan and the air exhaust well; the number of the point type smoke outlets is 2, the point type smoke outlets are respectively arranged in a left line tunnel and a right line tunnel on two sides of the platform, each point type smoke outlet is communicated with the heat exhausting fan through one conversion heat exhausting pipe, the air valve D9 is arranged between one point type smoke outlet and the conversion heat exhausting pipe, and the air valve D12 is arranged between the other point type smoke outlet and the conversion heat exhausting pipe.
Further, in the above point-type air exhaust and smoke exhaust station tunnel ventilation system of the trackless top duct, the ventilation subsystem further includes an air valve D1, an air valve D2, an air valve D4, an air valve D5, an air valve D6, an air valve D7, a first tunnel fan, and a second tunnel fan; the number of the section tunnel smoke outlets is 2, the number of the piston air shafts is 2, the two tunnel smoke outlets are respectively arranged in a left line section tunnel and a right line section tunnel, the section tunnel smoke outlet positioned in the left line section tunnel is communicated with one piston air shaft through a first air channel, the section tunnel smoke outlet positioned in the left line section tunnel is communicated with the air inlet end of the first tunnel fan through a second air channel, and the air outlet end of the first tunnel fan is communicated with one piston air shaft; the section tunnel smoke outlet positioned in the right line section tunnel is communicated with the other piston air shaft through a third air duct, the section tunnel smoke outlet positioned in the right line section tunnel is communicated with the air inlet end of the second tunnel fan through a fourth air duct, and the air outlet end of the second tunnel fan is communicated with the other piston air shaft; the air valve D6 is arranged at the smoke outlet of the section tunnel of the right section tunnel, the air valve D1 is arranged at the third air duct, the air valve D2 is arranged at the fourth air duct, and the air valve D2 is arranged between the first tunnel fan and the smoke outlet of the section tunnel; the air valve D7 is arranged at the smoke outlet of the left line section tunnel, the air valve D5 is arranged at the first air channel, the air valve D4 is arranged at the second air channel, and the air valve D4 is arranged between the second tunnel fan and the other piston air shaft.
Further, in the above point type ventilation and smoke exhaust station tunnel ventilation system without a rail-roof duct, the ventilation subsystem further includes a fifth duct and a damper D3, the fifth duct communicates the second duct with the fourth duct, the damper D3 is disposed on the fifth duct, and the damper D3 can control a communication state between the second duct and the fourth duct.
Further, in the above point type air exhaust and smoke exhaust station tunnel ventilation system with a trackless top duct, the ventilation subsystem further includes a plurality of silencers, where the silencers are disposed at an air inlet end of the first tunnel fan, an air outlet end of the first tunnel fan, an air inlet end of the second tunnel fan, an air outlet end of the second tunnel fan, an air inlet end of the piston air shaft, and an air inlet end of the air exhaust shaft.
Further, in the point type air exhaust and smoke exhaust station tunnel ventilation system without the rail top air duct, the ventilation subsystem further comprises a large system smoke exhaust pipe and a large system smoke exhaust fan, one end of the large system smoke exhaust pipe is located in a station floor public area of the station, the other end of the large system smoke exhaust pipe is communicated with an air inlet end of the large system smoke exhaust fan, and an air outlet end of the large system smoke exhaust fan is communicated with the air exhaust fan.
Further, in the above point type air exhaust and smoke exhaust station tunnel ventilation system without the rail top duct, the switching heat exhaust air pipe is disposed in the station floor equipment area of the station, and the first tunnel fan, the second tunnel fan, the piston air shaft, the air exhaust shaft, and the air exhaust fan are all disposed in the station hall floor equipment area of the station.
Further, in the above point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top duct, the switching heat exhaust air pipe, the first tunnel fan, the second tunnel fan, the piston air shaft, the air exhaust shaft and the air exhaust fan are all located in a station hall floor equipment area of the station.
Further, in the above point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top duct, when the station is a three-layer station, the station is a first layer, a second layer and a third layer from bottom to top, and the point type air exhaust and smoke exhaust station tunnel ventilation system further includes: the system comprises an exhaust shaft, an exhaust fan, a first tunnel fan, a second tunnel fan, a centralized smoke exhaust pipe and a piston air shaft; the platform smoke vent, the point type smoke vent and the interval tunnel smoke vent are all communicated with the second layer of the three-layer station; the air exhaust shaft, the first tunnel fan, the second tunnel fan and the piston air shaft are all arranged on the first layer of the three-layer station, the platform smoke outlet is simultaneously communicated with one end of two centralized smoke exhaust pipes, the other end of each centralized smoke exhaust pipe is communicated with the air inlet end of the air exhaust fan, and the air outlet end of the air exhaust fan is communicated with the air exhaust shaft; the number of the section tunnel smoke outlets is 2, the number of the piston air shafts is 2, the two tunnel smoke outlets are respectively arranged in a left line section tunnel and a right line section tunnel, the section tunnel smoke outlet positioned in the left line section tunnel is communicated with one piston air shaft through a first air channel, the section tunnel smoke outlet positioned in the left line section tunnel is communicated with the air inlet end of the first tunnel fan through a second air channel, and the air outlet end of the first tunnel fan is communicated with one piston air shaft; the section tunnel smoke outlet located in the right line section tunnel is communicated with the other piston air shaft through a third air channel, the section tunnel smoke outlet located in the right line section tunnel is communicated with the air inlet end of the second tunnel fan through a fourth air channel, and the air outlet end of the second tunnel fan is communicated with the other piston air shaft.
Furthermore, in the point type air exhaust and smoke exhaust station tunnel ventilation system without the rail-top air duct, the exhaust air volume of the heat exhaust fan is 30-55 m3An axial flow fan of the S.
The point type air exhaust and smoke exhaust station tunnel ventilation system without the rail top air channel has the advantages that the same air exhaust and smoke exhaust effects are achieved under the condition that the rail top air channel is omitted, the construction process of station civil engineering is simplified, and the civil engineering construction period is shortened and difficulty is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a schematic structural view of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of a platform layer of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to an embodiment of the present invention.
Fig. 3 is a schematic plan view of a hall layer of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to an embodiment of the present invention.
Fig. 4 is a schematic plan view of a platform layer of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to another embodiment of the present invention.
Fig. 5 is a schematic plan view of a hall layer of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to another embodiment of the present invention.
Fig. 6 is a schematic plan view of a three-layer station platform of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to yet another embodiment of the present invention.
Fig. 7 is a schematic plan view of three-story station equipment level layout of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless ceiling air duct according to still another embodiment of the present invention.
Fig. 8 is a schematic view of a normal operation condition state of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to an embodiment of the present invention.
Fig. 9 is a schematic view of a station tunnel fire condition state of a point type air exhaust and smoke exhaust station tunnel ventilation system of a trackless top air duct according to an embodiment of the present invention.
Fig. 10 is a schematic view of auxiliary smoke discharging state in case of fire at a platform public area of a tunnel ventilation system of a trackless top air duct point type exhaust smoke discharging station according to an embodiment of the present invention.
Fig. 11 is a schematic view of a fire condition state of an inter-zone tunnel of a tunnel ventilation system of a trackless roof air duct point type air exhaust and smoke exhaust station according to an embodiment of the present invention.
Description of reference numerals: 1, a platform smoke outlet; 2 point type smoke outlet; 3, a smoke exhaust port of the interval tunnel; 4, a piston air shaft; 5, an air exhaust shaft; 6 a first tunnel fan; 7 a second tunnel blower; 8, a silencer; 9 large system smoke exhaust pipes; 10 large system smoke exhaust fan; 11 heat exhausting fan; 12, a centralized smoke exhaust pipe; 13 switching the heat exhausting air duct.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected," "connected," and "disposed" as used herein are intended to be broadly construed, and may include, for example, fixed and removable connections; can be directly connected or indirectly connected through intermediate components; the connection may be a wired electrical connection, a wireless electrical connection, or a wireless communication signal connection, and a person skilled in the art can understand the specific meaning of the above terms according to specific situations.
One or more examples of the invention are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention. As used herein, the terms "first," "second," "third," and "fourth," etc. may be used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of an individual component.
As shown in fig. 1 to 11, according to an embodiment of the present invention, there is provided a point type air exhaust and smoke exhaust station tunnel ventilation system without a rail top duct, the ventilation system is symmetrically disposed at two ends of a platform of a station, a tunnel at a side of the platform is a station tunnel, a tunnel between two adjacent stations is an inter-zone tunnel, the ventilation system includes two ventilation subsystems, the two ventilation subsystems are respectively disposed at left and right ends of the platform, the ventilation subsystems include: the platform smoke outlet 1 is arranged at the platform, and the platform smoke outlet 1 is used for discharging smoke at the platform; the point type smoke outlet 2 is arranged in the station tunnel, and is used for discharging smoke in the station tunnel; the section tunnel smoke outlet 3 is arranged in the section tunnel and used for discharging smoke in the stations and the section tunnel; the piston air shaft 4 is communicated with the section tunnel smoke outlet 3; and the exhaust shaft 5 is communicated with the platform smoke outlet 1 and the point type smoke outlet 2.
Preferably, the ventilation subsystem further comprises an air valve D8, an air valve D9, an air valve D10, an air valve D11, an air valve D12 and a hot air exhaust fan 11; the heat exhausting fan 11 is 30-40 m3The platform smoke outlet 1 is simultaneously communicated with one ends of two centralized smoke exhaust pipes 12, the other end of each centralized smoke exhaust pipe 12 is communicated with one end of a conversion heat exhaust pipe 13, the other end of each conversion heat exhaust pipe 13 is communicated with the air inlet end of a heat exhaust fan 11, the air outlet end of the heat exhaust fan 11 is communicated with an exhaust well 5, an air valve D10 and an air valve D11 are respectively arranged on the two centralized smoke exhaust pipes 12, and an air valve D8 is arranged between the heat exhaust fan 11 and the exhaust well 5.
The number of the point type exhaust ports 2 is 2, the point type exhaust ports 2 are respectively arranged in a left line vehicle station tunnel and a right line vehicle station tunnel on two sides of a platform, each point type exhaust port 2 is communicated with the air exhaust fan 11 through a conversion exhaust heat pipe 13, the air valve D9 is arranged between one point type exhaust port 2 and the conversion exhaust heat pipe 13, and the air valve D12 is arranged between the other point type exhaust port 2 and the conversion exhaust heat pipe 13.
Preferably, the ventilation subsystem further comprises a blast gate D1, a blast gate D2, a blast gate D4, a blast gate D5, a blast gate D6, a blast gate D7, a first tunnel fan 6 and a second tunnel fan 7; the number of the section tunnel smoke exhaust ports 3 is 2, the number of the piston air shafts 4 is 2, the two tunnel smoke exhaust ports are respectively arranged in a left line section tunnel and a right line section tunnel, the section tunnel smoke exhaust port 3 positioned in the left line section tunnel is communicated with one piston air shaft 4 through a first air channel, the section tunnel smoke exhaust port 3 positioned in the left line section tunnel is communicated with the air inlet end of a first tunnel fan 6 through a second air channel, and the air outlet end of the first tunnel fan 6 is communicated with one piston air shaft 4; the section tunnel smoke outlet 3 of the tunnel positioned in the right line section is communicated with the other piston air shaft 4 through a third air channel, the section tunnel smoke outlet 3 of the tunnel positioned in the right line section is communicated with the air inlet end of a second tunnel fan 7 through a fourth air channel, and the air outlet end of the second tunnel fan 7 is communicated with the other piston air shaft 4; the air valve D6 is arranged at the smoke outlet 3 of the section tunnel positioned in the right line section tunnel, the air valve D1 is arranged at the first air channel, the air valve D2 is arranged at the second air channel, and the air valve D2 is positioned between the first tunnel fan 6 and the smoke outlet 3 of the section tunnel; the air valve D7 is arranged at the section tunnel smoke outlet 3 of the left line section tunnel, the air valve D5 is arranged at the first air channel, the air valve D4 is arranged at the second air channel, and the air valve D2 is arranged between the first tunnel fan 6 and the piston air shaft 4.
Preferably, the ventilation subsystem further comprises a fifth air duct and an air valve D3, the fifth air duct communicates the second air duct with the fourth air duct, the air valve D3 is arranged on the fifth air duct, and the air valve D3 can control the communication state between the second air duct and the fourth air duct.
Preferably, the ventilation subsystem further comprises a plurality of silencers 8, wherein the silencers 8 are provided at the inlet end of the first tunnel fan 6, at the outlet end of the first tunnel fan 6, at the inlet end of the second tunnel fan 7, at the outlet end of the second tunnel fan 7, at the inlet end of the piston air shaft 4 and at the inlet end of the exhaust air shaft 5.
Preferably, the ventilation subsystem further comprises a large system smoke exhaust pipe 9 and a large system smoke exhaust fan 10, one end of the large system smoke exhaust pipe 9 is located in a station floor public area of a station, the other end of the large system smoke exhaust pipe 9 is communicated with an air inlet end of the large system smoke exhaust fan 10, and an air outlet end of the large system smoke exhaust fan 10 is communicated with the hot air exhaust fan 11.
Preferably, the material of the converting and heat exhausting air pipe 13 may be selected from a metal material or a composite material.
Preferably, the conversion exhaust heat air pipe 13 is arranged in the platform layer equipment area of the station, and the first tunnel fan 6, the second tunnel fan 7, the piston air shaft 4, the exhaust air shaft 5 and the exhaust air heater 11 are all located in the station hall layer equipment area of the station.
The large end of the platform of the standard station adopts a conversion heat exhaust air pipe 13 to replace a rail top air duct. A centralized heat exhaust air chamber is arranged at the end part of the effective station platform, and a station platform smoke outlet 1 and a point type smoke outlet 2 are arranged at the centralized heat exhaust air chamber to exhaust air/smoke for the station tunnel; the concentrated smoke exhaust pipe 12 of the platform is arranged to extend into the public area of the platform, and the platform is assisted to exhaust smoke in case of fire in the public area of the platform. The concentrated heat exhausting chambers are connected with the station end heat exhausting chambers through the conversion heat exhausting pipes 13 serving as conversion air channels.
The switching heat exhausting duct 13 occupies the platform equipment area. The concentrated heat exhausting air chamber is arranged close to a platform public area and a train stop position, and the exhaust pipes facing the rail area are arranged on two sides of the concentrated heat exhausting air chamber to form point type exhaust (the exhaust pipes are directly arranged on the side edge of the end heat exhausting air chamber at the small end), so that the requirements of heat exhausting when the train stops and rapid smoke exhausting when a station tunnel is in fire are met.
Normal operating conditions
As shown in fig. 8, when the train normally runs, the point type smoke exhaust port on two sides or one side (exit end) of the station tunnel is opened, the first tunnel fan 6, the second tunnel fan 7, the large system smoke exhaust fan 10 and the heat exhaust fan 11 are closed, and the station heat exhaust fan 11 exhausts the heat of the train air conditioner and the residual heat in the tunnel to the outside of the station through the point type smoke exhaust port and the conversion heat exhaust pipe 13, so as to ensure that the temperature in the tunnel does not exceed the standard requirement of 40 ℃.
Station tunnel fire condition
As shown in fig. 9, when a train has a fire and stops at a station, the large system smoke exhaust fan 10 is turned off, the station heat exhaust fan 11 and the point type smoke exhaust port 2 at the end of the station tunnel are turned on, and simultaneously the first tunnel fan 6 and the second tunnel fan 7 are turned on to exhaust smoke from the accident side tunnel, so that smoke generated by the fire train can be rapidly exhausted.
When the smoke spreads to the platform public area through the platform door, the platform fire alarm is triggered, and the platform smoke exhaust system is started to exhaust smoke. The smoke is controlled above the clear height, so that the safe evacuation of passengers is ensured, and downward airflow of not less than 1.5m/s is generated at the escalator of the platform floor, so that the smoke of the platform cannot enter a station and hall public area.
Auxiliary smoke exhaust function in fire disaster of platform public area
As shown in fig. 10, when a fire occurs in the platform public area, the first tunnel fan 6 and the second tunnel fan 7 are turned off, the large system smoke exhaust fan 10 is turned on to exhaust smoke from the platform public area, and the heat exhaust fan 11 of the station tunnel is turned on to exhaust smoke from the platform through the centralized smoke exhaust pipe 12. The station tunnel heat removal system and the public area smoke removal system have the common effect of removing smoke and ensuring that downward airflow of not less than 1.5m/s can be generated at the escalator of the building so as to ensure that the smoke of the platform cannot enter the public area of the station hall.
In the case of a fire in a section, as shown in fig. 11, the auxiliary accident fans (TVF), i.e., the first tunnel fan 6 and the second tunnel fan 7, are turned on, and the heat exhausting fan 11 and the large system smoke exhausting fan 10 are turned off, to effectively exhaust smoke in the section. When a fire accident occurs, a quick and effective smoke exhaust means is provided, a certain head-on wind speed is formed, and passengers are guided to safely and quickly evacuate from the fire scene.
Example 2
As shown in fig. 4 to 5, the present embodiment is different from embodiment 1 in that the whole of the switching heat exhausting air duct 13, the first tunnel fan 6, the second tunnel fan 7, the piston air shaft 4, the air exhausting shaft 5 and the heat exhausting fan 11 are all located in the station hall floor equipment area of the station, the switching heat exhausting air duct 13 needs to occupy the upper space of the station hall floor equipment area, and for the station with a traction station, the pipeline arrangement of the station floor equipment area is difficult, and the way of downward feeding and upward returning can be considered. Namely, the air supply pipe is arranged below the station bedplate and extends into the room through the lower air supply pipe to supply air. The return air pipe is still laid on the upper part of the equipment area, and the upper part returns air.
Example 3
As shown in fig. 6-7, in this embodiment, when the station is a three-layer station, the station is respectively a first layer, a second layer and a third layer from bottom to top, the first layer is a station hall layer, the second layer is a station platform layer, and the third layer is an equipment layer, and the method further includes: the device comprises an exhaust shaft 5, a hot air exhaust machine 11, a first tunnel fan 6, a second tunnel fan 7 and a piston shaft 4; the platform smoke vent 1, the point type smoke vent 2 and the interval tunnel smoke vent 3 are all communicated with the second layer of the three-layer station; the air exhaust shaft 5, the first tunnel fan 6, the second tunnel fan 7 and the piston air shaft 4 are all arranged on the first layer of the three-layer station, a platform smoke outlet 1 is simultaneously communicated with one end of two centralized smoke exhaust pipes 12, the other end of each centralized smoke exhaust pipe 12 is communicated with the air inlet end of an air exhaust fan 11, and the air outlet end of the air exhaust fan 11 is communicated with the air exhaust shaft 5; for a three-layer station, the station heat exhausting fan 11 is arranged in the middle of an equipment layer (a second layer), and a point type smoke outlet 2 is directly arranged above a tunnel through the conversion of civil air chambers of the second layer.
The number of the section tunnel smoke exhaust ports 3 is 2, the number of the piston air shafts 4 is 2, the two tunnel smoke exhaust ports are respectively arranged in a left line section tunnel and a right line section tunnel, the section tunnel smoke exhaust port 3 positioned in the left line section tunnel is communicated with one piston air shaft 4 through a first air channel, the section tunnel smoke exhaust port 3 positioned in the left line section tunnel is communicated with the air inlet end of a first tunnel fan 6 through a second air channel, and the air outlet end of the first tunnel fan 6 is communicated with one piston air shaft 4; the section tunnel smoke outlet 3 located in the right line section tunnel is communicated with the other piston air shaft 4 through a third air channel, the section tunnel smoke outlet 3 located in the right line section tunnel is communicated with the air inlet end of a second tunnel fan 7 through a fourth air channel, and the air outlet end of the second tunnel fan 7 is communicated with the other piston air shaft 4.
Compared with the prior art, the invention cancels the rail top air duct of the underground subway station, obtains the same air exhaust and smoke exhaust effects under the condition of canceling the rail top air duct, simplifies the construction process of civil engineering of the station, and shortens the construction period and difficulty of the civil engineering.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a point type of no rail top wind channel is aired exhaust and is discharged fume station tunnel ventilation system which characterized in that has the platform in the station, the tunnel of platform side is the station tunnel, and adjacent two the tunnel between the station is the interval tunnel, ventilation system includes two ventilation subsystems, two the ventilation subsystem is located respectively the left and right sides both ends of platform, the ventilation subsystem includes:
the platform smoke outlet is arranged at the platform and used for discharging smoke at the platform;
the point type smoke outlet is arranged in the station tunnel and used for discharging smoke in the station tunnel;
the section tunnel smoke outlet is arranged in the section tunnel and used for discharging smoke in the station and the section tunnel;
the piston air shaft is communicated with the section tunnel smoke outlet;
and the air exhaust shaft is communicated with the platform smoke outlet and the point type smoke outlet.
2. The point type exhaust and smoke exhaust station tunnel ventilation system of the railless top duct is characterized in that the ventilation subsystem further comprises a centralized exhaust pipe, an air valve D8, an air valve D9, an air valve D10, an air valve D11, an air valve D12 and a heat exhaust fan;
the platform smoke outlet is simultaneously communicated with one end of each of the two centralized smoke exhaust pipes, the other end of each centralized smoke exhaust pipe is communicated with one end of a conversion heat exhaust pipe, the other end of each conversion heat exhaust pipe is communicated with the air inlet end of the air exhaust fan, the air outlet end of the air exhaust fan is communicated with the air exhaust well, the air valve D10 and the air valve D11 are respectively arranged on the two centralized smoke exhaust pipes, and the air valve D8 is arranged between the air exhaust fan and the air exhaust well;
the number of the point type smoke outlets is 2, the point type smoke outlets are respectively arranged in a left line tunnel and a right line tunnel on two sides of the platform, each point type smoke outlet is communicated with the heat exhausting fan through one conversion heat exhausting pipe, the air valve D9 is arranged between one point type smoke outlet and the conversion heat exhausting pipe, and the air valve D12 is arranged between the other point type smoke outlet and the conversion heat exhausting pipe.
3. The point type exhaust and smoke exhaust station tunnel ventilation system of the trackless ceiling air duct of claim 2, wherein the ventilation subsystem further comprises an air valve D1, an air valve D2, an air valve D4, an air valve D5, an air valve D6, an air valve D7, a first tunnel fan and a second tunnel fan;
the number of the section tunnel smoke outlets is 2, the number of the piston air shafts is 2, the two section tunnel smoke outlets are respectively arranged in a left line section tunnel and a right line section tunnel, the section tunnel smoke outlets positioned in the left line section tunnel are communicated with one piston air shaft through a first air duct,
the section tunnel smoke outlet of the tunnel positioned in the left line section is communicated with the air inlet end of the first tunnel fan through a second air duct, and the air outlet end of the first tunnel fan is communicated with one piston air shaft;
the section tunnel smoke outlet positioned in the right section tunnel is communicated with the other piston air shaft through a third air duct,
the section tunnel smoke outlet of the tunnel positioned in the right line section is communicated with the air inlet end of the second tunnel fan through a fourth air duct, and the air outlet end of the second tunnel fan is communicated with the other piston air shaft;
the air valve D6 is arranged at the smoke outlet of the section tunnel of the right section tunnel, the air valve D1 is arranged at the third air duct, the air valve D2 is arranged at the fourth air duct, and the air valve D2 is arranged between the first tunnel fan and the smoke outlet of the section tunnel;
the air valve D7 is arranged at the smoke outlet of the left line section tunnel, the air valve D5 is arranged at the first air channel, the air valve D4 is arranged at the second air channel, and the air valve D4 is arranged between the second tunnel fan and the other piston air shaft.
4. The point type exhaust and smoke exhaust station tunnel ventilation system of the railless top duct according to claim 3, wherein the ventilation subsystem further comprises a fifth duct and a duct D3, the fifth duct connects the second duct with the fourth duct, the duct D3 is provided on the fifth duct, and the duct D3 can control the connection state between the second duct and the fourth duct.
5. The system of claim 3, wherein the ventilation subsystem further comprises a plurality of silencers disposed at an inlet end of the first tunnel blower, an outlet end of the first tunnel blower, an inlet end of the second tunnel blower, an outlet end of the second tunnel blower, an inlet end of the piston air shaft, and an inlet end of the air shaft.
6. The point type exhaust and smoke exhaust station tunnel ventilation system of the railless top duct is characterized in that the ventilation subsystem further comprises a large system exhaust pipe and a large system exhaust fan, one end of the large system exhaust pipe is located in a station floor public area of the station, the other end of the large system exhaust pipe is communicated with an air inlet end of the large system exhaust fan, and an air outlet end of the large system exhaust fan is communicated with the exhaust fan.
7. The point type exhaust and smoke evacuation station tunnel ventilation system without a rail-top duct according to claim 4, wherein the switching exhaust heat pipes are provided in a station floor equipment area of the station, and the first tunnel fan, the second tunnel fan, the piston air shaft, the exhaust air shaft and the exhaust air heater are all located in a station hall floor equipment area of the station.
8. The spot ventilation and exhaust station tunnel ventilation system of the railless top duct, according to claim 4, wherein the switching heat exhausting duct, the first tunnel fan, the second tunnel fan, the piston air shaft, the air exhausting shaft and the air exhausting fan are all located in a station hall floor equipment area of the station.
9. The point type ventilation and exhaust station tunnel ventilation system of the railless top duct according to claim 1, wherein when the station is a three-layer station, the station is a first layer, a second layer and a third layer from bottom to top, and further comprising: the system comprises an exhaust shaft, an exhaust fan, a first tunnel fan, a second tunnel fan, a centralized smoke exhaust pipe and a piston air shaft;
the platform smoke vent, the point type smoke vent and the interval tunnel smoke vent are all communicated with the second layer of the three-layer station;
the air exhaust shaft, the first tunnel fan, the second tunnel fan and the piston air shaft are all arranged on the first layer of the three-layer station, the platform smoke outlet is simultaneously communicated with one end of two centralized smoke exhaust pipes, the other end of each centralized smoke exhaust pipe is communicated with the air inlet end of the air exhaust fan, and the air outlet end of the air exhaust fan is communicated with the air exhaust shaft;
the number of the section tunnel smoke outlets is 2, the number of the piston air shafts is 2, the two section tunnel smoke outlets are respectively arranged in a left line section tunnel and a right line section tunnel, the section tunnel smoke outlet positioned in the left line section tunnel is communicated with one piston air shaft through a first air channel, the section tunnel smoke outlet positioned in the left line section tunnel is communicated with the air inlet end of the first tunnel fan through a second air channel, and the air outlet end of the first tunnel fan is communicated with one piston air shaft;
the section tunnel smoke outlet located in the right line section tunnel is communicated with the other piston air shaft through a third air channel, the section tunnel smoke outlet located in the right line section tunnel is communicated with the air inlet end of the second tunnel fan through a fourth air channel, and the air outlet end of the second tunnel fan is communicated with the other piston air shaft.
10. The point type exhaust and smoke exhaust station tunnel ventilation system of the trackless ceiling air duct of claim 2, wherein the exhaust fan has an exhaust air volume of 30-55 m3An axial flow fan of the S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110808794.4A CN113339037B (en) | 2021-07-16 | 2021-07-16 | Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110808794.4A CN113339037B (en) | 2021-07-16 | 2021-07-16 | Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113339037A CN113339037A (en) | 2021-09-03 |
| CN113339037B true CN113339037B (en) | 2021-12-28 |
Family
ID=77479903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110808794.4A Active CN113339037B (en) | 2021-07-16 | 2021-07-16 | Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113339037B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876552A (en) * | 2022-05-11 | 2022-08-09 | 广州地铁设计研究院股份有限公司 | Tunnel ventilation system for pressure relief of underground railway station of rail transit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11218000A (en) * | 1998-01-30 | 1999-08-10 | Kansai Electric Power Co Inc:The | Supporting member for mounting installation object on tunnel segment |
| CN102519120A (en) * | 2011-12-09 | 2012-06-27 | 上海市隧道工程轨道交通设计研究院 | Open-closed system station subway platform ventilation and smoke exhaust method |
| CN108049905A (en) * | 2017-11-03 | 2018-05-18 | 中国安全生产科学研究院 | A kind of totally-enclosed gate underground station platform fire ventilation smoke exhaust method of subway |
| CN108952788A (en) * | 2018-08-16 | 2018-12-07 | 中国安全生产科学研究院 | A kind of method of underground station train fire ventilation smoke exhaust |
| CN210345770U (en) * | 2019-05-22 | 2020-04-17 | 上海市政工程设计研究总院（集团）有限公司 | Air purification system suitable for subway station platform layer |
-
2021
- 2021-07-16 CN CN202110808794.4A patent/CN113339037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11218000A (en) * | 1998-01-30 | 1999-08-10 | Kansai Electric Power Co Inc:The | Supporting member for mounting installation object on tunnel segment |
| CN102519120A (en) * | 2011-12-09 | 2012-06-27 | 上海市隧道工程轨道交通设计研究院 | Open-closed system station subway platform ventilation and smoke exhaust method |
| CN108049905A (en) * | 2017-11-03 | 2018-05-18 | 中国安全生产科学研究院 | A kind of totally-enclosed gate underground station platform fire ventilation smoke exhaust method of subway |
| CN108952788A (en) * | 2018-08-16 | 2018-12-07 | 中国安全生产科学研究院 | A kind of method of underground station train fire ventilation smoke exhaust |
| CN210345770U (en) * | 2019-05-22 | 2020-04-17 | 上海市政工程设计研究总院（集团）有限公司 | Air purification system suitable for subway station platform layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113339037A (en) | 2021-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203867603U (en) | Smoke control structure in subway station wiring region | |
| CN202946180U (en) | Tunnel ventilation system suitable for underground public transit system | |
| CN202017511U (en) | Natural ventilation and smoke discharge system of urban rail transit interval tunnel | |
| CN108266217B (en) | Subway station tunnel heat extraction system | |
| CN113339037B (en) | Point type exhaust and smoke exhaust station tunnel ventilation system without rail top air duct | |
| CN105256981A (en) | Ventilation and smoke exhaustion method of underground stereo parking garage | |
| JP7128251B2 (en) | Fire ventilation and smoke exhaust system and method for tunnels with long and large sections in subways running through rivers or seas | |
| CN108035759A (en) | A kind of underground railway tunnel fire ventilation smoke extraction system and method | |
| CN114183867A (en) | Air-conditioning ventilation system of subway underground station platform | |
| KR101191592B1 (en) | Selective point extraction ventilation method applied to active control | |
| JP3498526B2 (en) | Ventilation equipment for mobile equipment | |
| CN210599057U (en) | Full-height platform door system subway station rail top air channel is platform system of discharging fume in coordination | |
| CN102519110A (en) | Subway platform ventilation and smoke removal distribution structure in station with opened-closed system | |
| CN113251534A (en) | Scissor stair pressurization air supply system for fire evacuation of subway station | |
| JP2002089916A (en) | Platform door device | |
| CN111878954A (en) | Pipe gallery ventilation system of non-gas pipeline cabin and using method thereof | |
| CN207437115U (en) | A kind of underground railway tunnel fire ventilation smoke extraction system | |
| CN107387146B (en) | Natural smoke exhausting, heat exhausting and tunnel ventilation system and method for subway station track area | |
| CN111255502A (en) | Subway train platform and smoke exhaust method thereof | |
| CN212079718U (en) | Subway train platform | |
| CN102513323B (en) | Fume exhaust layout structure for subway platform and screen door system | |
| CN213768521U (en) | Underground station for tramcar | |
| CN102519120B (en) | Open-closed system station subway platform ventilation and smoke exhaust method | |
| CN105221180B (en) | Subway platform fire prevention separation method | |
| CN208057144U (en) | A kind of Long Traffic Tunnels region couples formula smoke control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |