CN210217811U - Natural ventilation and smoke exhaust system for public area of shallow underground station for rail transit - Google Patents
Natural ventilation and smoke exhaust system for public area of shallow underground station for rail transit Download PDFInfo
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- CN210217811U CN210217811U CN201921033837.0U CN201921033837U CN210217811U CN 210217811 U CN210217811 U CN 210217811U CN 201921033837 U CN201921033837 U CN 201921033837U CN 210217811 U CN210217811 U CN 210217811U
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Abstract
The utility model discloses a natural ventilation and smoke exhaust system for a public area of a shallow underground station of rail transit, wherein, the underground layer of the underground station comprises an equipment management area and the public area; a plurality of ventilation and smoke exhaust vertical shafts are arranged at the top of the public area; the ventilation and smoke exhaust vertical shaft is communicated with outdoor atmosphere along the top of the public area and penetrates through the soil covering layer of the underground station, and a ventilation and smoke exhaust port is arranged at the communication position of the ventilation and smoke exhaust vertical shaft and the outdoor atmosphere. The beneficial effects are that, through ventilation exhaust port operating mode switching realization station underground one deck public area transition ventilation season natural draft and the natural smoke discharging of conflagration operating mode. When the smoke is exhausted by ventilation, the buoyancy of hot smoke is used as smoke exhaust power, and the smoke is exhausted to the outside through the smoke exhaust vertical shaft and the electric ventilation smoke exhaust port, so that natural smoke exhaust is realized. The ventilation and smoke exhaust port has no mechanical smoke exhaust airflow disturbance, the smoke exhaust effect is good, and personnel evacuation and rescue are facilitated. The system can reduce the power consumption of the ventilation equipment and the configuration of the smoke exhaust fan in the transition season, and has remarkable resource saving effect.
Description
Technical Field
The utility model relates to a rail transit engineering ventilation system of discharging fume especially relates to a cover shallow urban rail transit underground station one deck public area natural draft system of discharging fume of soil layer thickness.
Background
At present, a mechanical ventilation and smoke exhaust system is generally arranged in a public area of an urban rail transit underground station and is used for ventilation of the public area of the station and smoke exhaust in the fire working condition. The general scheme of the system is that a ventilation fan, a smoke exhaust fan and an electric air valve are respectively arranged in a station machine room, and a common air pipe for ventilation and smoke exhaust is arranged in a public area at the tail end of the system. The conversion of working conditions is realized by opening and closing different fans and electric air valves in the operation process. Such systems require a large amount of energy consumption and are complex to control. In addition, the disturbance of the airflow of the mechanical smoke exhaust fan can destroy the smoke stratification, which is not beneficial to the evacuation and rescue of people.
Disclosure of Invention
The utility model aims to solve the technical problem that, overcome prior art defect, provide a work condition conversion is simple, the flue gas layering is stable, energy-conserving shallow buries underground station natural draft system of discharging fume.
The utility model adopts the technical proposal that the natural ventilation and smoke exhaust system for the rail transit shallow buried underground station public area comprises an underground layer which is shallow buried in the underground station; the underground layer of the underground station comprises an equipment management area and a public area; a plurality of ventilation and smoke exhaust vertical shafts are arranged at the top of the public area; the ventilation and smoke exhaust vertical shaft is communicated with outdoor atmosphere along the top of a public area and penetrates through an underground station covering soil layer, and a ventilation and smoke exhaust port is arranged at the communication position of the ventilation and smoke exhaust vertical shaft and the outdoor atmosphere.
The public area is divided into a plurality of smoke-proof subareas, and smoke-blocking vertical walls are arranged among the smoke-proof subareas to form a smoke storage bin.
Any position in the public area has a horizontal distance of less than 30m from the nearest ventilation and smoke evacuation shaft.
The ventilation and smoke exhaust port is provided with an electric control device and an automatic opening device.
The ventilation and smoke exhaust port is a louver air port or a smoke exhaust window, and the ventilation and smoke exhaust vertical shafts are uniformly and dispersedly arranged at the top of the public area.
The beneficial effects of the utility model are that, the operating mode through the ventilation exhaust port switches the natural draft of realizing station underground one deck public area transition ventilation season natural draft and conflagration operating mode and discharges fume naturally. Especially, when the smoke is exhausted by ventilation, the buoyancy of hot smoke is used as smoke exhaust power, and the smoke is exhausted to the outside through the smoke exhaust vertical shaft and the electric ventilation smoke exhaust port, so that the natural smoke exhaust is realized. The ventilation and smoke exhaust port has no mechanical smoke exhaust airflow disturbance, the smoke exhaust effect is good, and personnel evacuation and rescue are facilitated. The device is suitable for urban rail transit underground stations with shallow soil covering layers. The system can reduce the power consumption of the ventilation equipment and the configuration of the smoke exhaust fan in the transition season, and has remarkable resource saving effect and good smoke exhaust effect.
Drawings
FIG. 1 is a schematic plan view of a natural ventilation and smoke exhaust system of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic plan view of a common area of a subsurface formation;
fig. 4 the utility model discloses station public area conflagration operating mode natural exhaust gas flow organization sketch map in natural ventilation system of discharging fume.
In the figure:
1. ventilation smoke vent 2, ventilation smoke exhaust shaft 3, underground station cover soil layer
4. Public area 5, equipment management area 6, smoke barrier.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1 to 4, the natural ventilation and smoke exhaust system for the public area of the shallow underground station of the rail transit of the present invention is suitable for the underground station of the urban rail transit with a shallow covering layer thickness, including the underground layer buried in the underground station; the underground layer of the underground station comprises an equipment management area 5 and a public area 4; a plurality of ventilation and smoke exhaust vertical shafts 2 are arranged at the top of the public area 4; the ventilation and smoke exhaust shaft 2 is communicated with outdoor atmosphere along the top of a public area 4 and penetrates through an underground station covering soil layer 3, and an electric ventilation and smoke exhaust port 1 is arranged at the communication position of the ventilation and smoke exhaust shaft 2 and the outdoor atmosphere.
The public area is divided into a plurality of smoke-proof subareas according to requirements, one to four smoke-proof subareas are only disclosed in figure 3, it is pointed out that the number of smoke-proof subareas is not limited to the above, and smoke-blocking vertical walls 6 are arranged between the tops of the smoke-proof subareas of the public area to form a smoke storage bin. And a ventilation and smoke-discharging vertical shaft is arranged in the public area smoke-proof subarea, and the horizontal distance between any position in the smoke-proof subarea and the nearest ventilation and smoke-discharging vertical shaft 2 in the smoke-proof subarea is less than 30 m.
The ventilation and smoke exhaust port 1 is provided with an electric control device and an automatic opening device, and can be controlled locally and remotely. The ventilation and smoke exhaust port 1 is an electric louver air port or an electric smoke exhaust window, the electric louver air port or the electric smoke exhaust window is a commercially available product, and can be directly and publicly bought according to the requirements of design type, size and the like; the ventilation and smoke exhaust vertical shaft 2 is preferably uniformly distributed at the top of the public area 4 according to the ground condition, and the ventilation and smoke exhaust vertical shaft 2 can be laterally discharged and ejected in an outdoor atmosphere communication mode.
The working principle of the utility model is that the chimney effect is fully utilized, the electric ventilation exhaust port is opened in the transition ventilation season, and the chimney effect of the ventilation shaft is utilized to realize the ventilation requirements of the underground public area and the outdoor ventilation; when the underground public area is in a fire working condition, the electric ventilation smoke exhaust port is opened, the buoyancy effect of hot smoke is used as smoke exhaust power, and natural smoke exhaust is realized through the ventilation smoke exhaust vertical shaft and the electric ventilation smoke exhaust port. As shown in fig. 4, in the smoke discharging process, smoke in the fire area is discharged out of the room through the ventilation smoke discharging well, and air is naturally supplemented from the adjacent smoke-proof subareas. The utility model can save the configuration of the smoke exhaust fan; the energy consumption of ventilation operation equipment in transitional seasons is reduced, and the energy-saving effect is obvious; the natural smoke discharge has no mechanical smoke discharge airflow disturbance, the smoke discharge effect is good, and the evacuation and rescue of people are facilitated.
It is worth pointing out that the protection scope of the present invention is not limited to the above specific example, and according to the basic technical concept of the present invention, the same basic structure can be used, so as to achieve the purpose of the present invention, as long as the ordinary skilled person in the art does not need to work creatively, the conceivable embodiments all belong to the protection scope of the present invention.
Claims (5)
1. A natural ventilation and smoke exhaust system for a public area of a shallow buried underground station of rail transit is characterized by comprising an underground layer which is buried in the underground station; the underground layer of the underground station comprises an equipment management area and a public area; a plurality of ventilation and smoke exhaust vertical shafts are arranged at the top of the public area; the ventilation and smoke exhaust vertical shaft is communicated with outdoor atmosphere along the top of a public area and penetrates through an underground station covering soil layer, and a ventilation and smoke exhaust port is arranged at the communication position of the ventilation and smoke exhaust vertical shaft and the outdoor atmosphere.
2. The natural ventilation and smoke exhaust system for the public area of the shallow underground station of the rail transit as claimed in claim 1, wherein the public area is divided into a plurality of smoke-proof subareas, and smoke-proof vertical walls are arranged between the smoke-proof subareas to form a smoke storage bin.
3. The natural ventilation and smoke exhaust system for the rail transit shallow-buried underground station public area as claimed in claim 1, wherein the horizontal distance from the nearest ventilation and smoke exhaust shaft at any position in the public area is less than 30 m.
4. The natural ventilation and smoke exhaust system for the track traffic shallow underground station public area as claimed in claim 1, wherein the ventilation and smoke exhaust port is configured with an electric control device and an automatic opening device.
5. The natural ventilation and smoke exhaust system for the shallow underground station public area of the rail transit as claimed in claim 1, wherein the ventilation and smoke exhaust port is a louver air port or a smoke exhaust window, and the ventilation and smoke exhaust vertical shafts are uniformly and dispersedly arranged on the top of the public area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921033837.0U CN210217811U (en) | 2019-07-04 | 2019-07-04 | Natural ventilation and smoke exhaust system for public area of shallow underground station for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921033837.0U CN210217811U (en) | 2019-07-04 | 2019-07-04 | Natural ventilation and smoke exhaust system for public area of shallow underground station for rail transit |
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| Publication Number | Publication Date |
|---|---|
| CN210217811U true CN210217811U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921033837.0U Active CN210217811U (en) | 2019-07-04 | 2019-07-04 | Natural ventilation and smoke exhaust system for public area of shallow underground station for rail transit |
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| CN (1) | CN210217811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185487A (en) * | 2019-07-04 | 2019-08-30 | 中国铁路设计集团有限公司 | A kind of rail traffic Shallow-Embedded Under-Ground station public area natural ventilation smoke system |
| CN113531730A (en) * | 2021-06-30 | 2021-10-22 | 中国安全生产科学研究院 | Dynamic smoke exhaust system and method for subway parking train inspection warehouse |
-
2019
- 2019-07-04 CN CN201921033837.0U patent/CN210217811U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185487A (en) * | 2019-07-04 | 2019-08-30 | 中国铁路设计集团有限公司 | A kind of rail traffic Shallow-Embedded Under-Ground station public area natural ventilation smoke system |
| CN113531730A (en) * | 2021-06-30 | 2021-10-22 | 中国安全生产科学研究院 | Dynamic smoke exhaust system and method for subway parking train inspection warehouse |
| CN113531730B (en) * | 2021-06-30 | 2023-10-20 | 中国安全生产科学研究院 | Dynamic smoke discharging system and method for subway parking train inspection warehouse |
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