CN112791326A - Smoke-proof and fire-proof air curtain for subway station - Google Patents
Smoke-proof and fire-proof air curtain for subway station Download PDFInfo
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- CN112791326A CN112791326A CN202011623608.1A CN202011623608A CN112791326A CN 112791326 A CN112791326 A CN 112791326A CN 202011623608 A CN202011623608 A CN 202011623608A CN 112791326 A CN112791326 A CN 112791326A
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- fire
- air curtain
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F9/00—Use of air currents for screening, e.g. air curtains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F9/00—Use of air currents for screening, e.g. air curtains
- F24F2009/007—Use of air currents for screening, e.g. air curtains using more than one jet or band in the air curtain
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- Business, Economics & Management (AREA)
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides a smoke-proof and fire-proof air curtain for a subway station, which comprises an air curtain machine, wherein the air curtain machine comprises a fan and an air outlet, a row of gas fire-extinguishing spray holes are formed in the center of the air outlet, the row of gas fire-extinguishing spray holes are arranged along the length direction of the air outlet, and the gas fire-extinguishing spray holes are connected with a gas fire-extinguishing pipe network. Compared with the traditional air curtain, the invention has stronger fireproof and smoke-proof functions, can replace the traditional fire wall, the fireproof door and the smoke-blocking vertical wall, optimizes the arrangement of comprehensive pipelines in a station, is beneficial to the evacuation and rescue of people in fire, effectively solves the problems that the arrangement of the fireproof wall and the smoke-blocking vertical wall is difficult or the arrangement of the smoke-blocking vertical wall and the fireproof wall influences the indoor appearance and decoration of a building, effectively improves the utilization rate of underground space, has far better aesthetic property and space utilization rate than the traditional smoke-proof and fire-proof measures such as the smoke-blocking vertical wall, the fireproof door, a fireproof rolling curtain and the like, and leaves more play space for indoor decoration of subways.
Description
Technical Field
The invention belongs to the technical field of ventilation air conditioners, and particularly relates to a smoke-proof and fire-proof air curtain for a subway station.
Background
The air curtain is a curtain-shaped airflow which is provided with certain jet flow energy and is ejected by the nozzle under the power of the fan, so that a relatively closed area is formed in the space, and air, dust and the like are prevented from invading the protected area.
The air curtain technology firstly originates from the Soviet Union, the early application of the air curtain technology is mainly used for heating indoor temperature, and the air curtain technology is applied to the aspects of gate heat insulation, cold insulation and the like after the development of the air curtain technology. Since the introduction of air curtains in China, with the continuous development of technology, the main functions of the air curtains are heat insulation, cold insulation, improvement of indoor air quality and the like.
In recent years, some scholars use the characteristics of the air curtain to research the application of the air curtain in building smoke prevention, and apply the smoke prevention air curtain to the smoke prevention practice of front rooms of high-rise buildings and superstores. And partial researchers popularize the smoke-proof air curtain into the tunnel to ensure that the personnel can escape safely in case of fire.
The "fire code for building design" GB50016-2014 states that fire zones should be isolated by firewalls, but when there is difficulty in setting up a firewall, other suitable means may be used. When a fire disaster occurs in a station, if the fire disaster and the spread of smoke are not controlled, a large area of high-temperature smoke generated in a building is diffused greatly, so that the fire disaster result is more serious.
At present, as a new smoke prevention mode, a smoke prevention air curtain also has a large application space in a subway smoke prevention and exhaust system, but at present, related researches are few, and the smoke prevention air curtain is not actually applied to the subway.
For the air curtain and the subway station at the present stage, the following technical problems can be encountered:
(1) the existing air curtain only has the smoke prevention function of separating air flow and lacks the fire prevention function. The method is difficult to be further popularized to the use of fire prevention and smoke prevention partition division.
(2) Underground space pipelines of the subway station are staggered and complex, and the arrangement of the comprehensive pipelines of the station is blocked due to the existence of a fireproof rolling curtain, a smoke blocking vertical wall and the like in many cases in actual design, so that the local minimum elevations of the pipelines and a bridge frame are influenced, and even the arrangement of the pipelines in local areas is difficult.
(3) When a fire disaster occurs in a subway station (particularly a transfer station), in order to prevent further diffusion of fire behavior and smoke, the fireproof roller shutters can be started between the fireproof subareas, and if personnel cannot be fully evacuated in time after the fireproof roller shutters fall down, evacuation and rescue of the personnel in the fireproof subareas in an isolation state are difficult to realize.
(4) Because of cost control, underground space is precious, and for realizing fire prevention partition division in the specification, a fire wall or a fire door has to be arranged between two large spaces sometimes, so that the precious large space is divided into scattered small spaces, and the space utilization rate is reduced.
(5) When the arrangement of the firewall and the smoke-blocking vertical wall is difficult, or the arrangement of the smoke-blocking vertical wall and the firewall affects the indoor beauty and decoration of a building, the traditional firewall and the smoke-blocking vertical wall are not beautiful, and valuable space underground is blocked, thus causing waste.
(6) The traditional smoke-blocking vertical wall, the fire-proof door, the fire-proof rolling curtain and the like have great limitations on decoration.
In conclusion, the application of the air curtain in the fire and smoke prevention of the subway is still in an early research stage, related research technical achievements are rarely applied in the field, and the subway station can be further optimized by means of the application of the fire and smoke prevention air curtain.
Disclosure of Invention
The invention aims to provide a smoke-proof and fire-proof air curtain for a subway station, which can effectively solve the problems that the existing air curtain only has a smoke-proof function and lacks a fire-proof function, and also solves the problems that a fire wall and a smoke-blocking vertical wall are difficult to arrange, or the smoke-blocking vertical wall and the fire wall are difficult to arrange, so that the indoor decoration of a building and the arrangement of an air pipe bridge frame are influenced, the safe evacuation time is increased for the evacuation of people, and the utilization rate of underground large space is increased.
The invention is realized by the following steps:
the invention provides a smoke-proof and fire-proof air curtain for a subway station, which comprises an air curtain machine, wherein the air curtain machine comprises a fan and an air outlet, a row of gas fire-extinguishing spray holes are formed in the center of the air outlet, the row of gas fire-extinguishing spray holes are arranged along the length direction of the air outlet, and the gas fire-extinguishing spray holes are connected with a gas fire-extinguishing pipe network.
Further, the row of gas fire extinguishing spray holes comprises a plurality of circular spray holes arranged at intervals.
Furthermore, the row of gas fire extinguishing spray holes are strip-shaped continuous spray holes.
Further, the air curtain machine further comprises a controller, the controller is connected with the fan, and the controller is further connected with a subway station FAS.
Further, the gas extinguishing pipe network is an automatic fire extinguishing gas extinguishing pipe network of a subway station.
Further, the fire extinguishing system also comprises an air extinguishing fan for pressurizing and accelerating the fire extinguishing gas of the air extinguishing pipe network.
Further, still include the aspirator, the air curtain machine with the aspirator sets up relatively from top to bottom.
Furthermore, the air curtain machine has two sets and left and right opposite setting.
Compared with the prior art, the invention has the following beneficial effects:
compared with the traditional air curtain, the smoke-proof and fireproof air curtain for the subway station has stronger fire-proof and smoke-proof functions, and can replace the traditional fire wall, fireproof door and smoke-blocking vertical wall; the problem that the arrangement of the comprehensive pipeline of the station is hindered due to the existence of a fireproof rolling curtain, a smoke-blocking vertical wall and the like in many cases in actual design is solved, the arrangement of the comprehensive pipeline in the station is optimized, and more available space is left for the arrangement of an air pipe bridge; the air curtain is used as a flexible partition, so that the evacuation and passage of people can not be influenced while smoke is blocked, the safe evacuation time is increased for the evacuation of people, and the evacuation and rescue of people in fire are facilitated; when the arrangement of the firewall and the smoke-blocking vertical wall is difficult, or the arrangement of the smoke-blocking vertical wall and the firewall affects the indoor beauty and decoration of a building, the invention can effectively solve the problem and effectively improve the utilization rate of underground space; the aesthetic property and the space utilization rate of the air curtain are far superior to the traditional smoke-proof and fire-proof measures such as a smoke-blocking vertical wall, a fire-proof door, a fire-proof rolling curtain and the like, and more play space is left for the indoor decoration of the subway.
Drawings
Fig. 1 is a schematic structural view of a smoke-proof and fire-proof air curtain for a subway station according to an embodiment of the present invention;
fig. 2 is a schematic view of a layered airflow of a smoke-proof and fire-proof air curtain for a subway station according to an embodiment of the present invention;
FIG. 3 is a schematic view of a single-blow type air curtain for smoke protection and fire protection according to an embodiment of the present invention;
FIG. 4 is a schematic view of a blowing-sucking type smoke and fire protection air curtain provided by an embodiment of the present invention;
fig. 5 is a schematic view of a blowing type smoke and fire protection air curtain according to an embodiment of the present invention.
Description of reference numerals: 100-air curtain machine, 1-air outlet, 2-gas fire extinguishing spray orifice, 3-gas fire extinguishing pipe network, 4-natural air curtain layer, 5-fire extinguishing gas curtain layer and 200-air suction machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a smoke-proof and fire-proof air curtain for a subway station, which can be further modified from an existing air curtain product, and includes an air curtain machine 100, where the air curtain machine 100 includes a fan and an air outlet 1, the fan provides power to make the air outlet 1 spray a curtain-shaped air flow with certain jet energy, the air curtain machine is provided with a row of gas fire-extinguishing spray holes 2 in the center of the air outlet 1, the row of gas fire-extinguishing spray holes 2 are arranged along the length direction of the air outlet 1, the gas fire-extinguishing spray holes 2 are connected to a gas fire-extinguishing pipe network 3, and fire-extinguishing gas is sent to the gas fire-extinguishing spray holes 2 through the gas fire-extinguishing pipe network 3 to be. This three-layer airflow structure, be in the two-layer natural air curtain layer 4 in the outside, owing to have great air flow rate and the air current at air curtain both ends has been separated, thereby the diffusion of flue gas has been separated, and owing to there being the heat that great air flow rate can take away the flame to realize the primary function of putting out a fire in the meaning, thereby the gaseous curtain layer 5 of putting out a fire of centre can not form the gas wall that gaseous component of putting out a fire to diffusion all around owing to the natural air curtain layer 4's at both ends existence of putting out a fire gas, owing to the gaseous blowout of putting out a fire also with great pressure, thereby very effectual separation has further spread of the intensity of a. The three-layer airflow structure has the functions of the traditional firewall, fireproof door and smoke-blocking vertical wall.
As an implementation of the gas fire extinguishing nozzle hole 2, as shown in fig. 1, the row of gas fire extinguishing nozzle holes 2 includes a plurality of circular nozzle holes arranged at intervals, and the fire extinguishing gas sprayed through the plurality of circular nozzle holes forms a fire extinguishing gas curtain layer 5; as another embodiment of the gas fire extinguishing nozzle 2, the row of gas fire extinguishing nozzles 2 may also be arranged as a strip-shaped coherent nozzle, and the fire extinguishing gas sprayed through the strip-shaped coherent nozzle directly forms the fire extinguishing gas curtain 5.
Further, the air curtain machine 100 further includes a controller, the controller is connected to the fan and configured to control the opening and closing and the rotation speed of the fan, and preferably, the controller is further connected to a Fire Alarm System (FAS) in a subway station, so as to realize automatic control of the smoke-proof and fire-proof air curtain. The gas extinguishing pipe network 3 is an automatic fire extinguishing gas extinguishing pipe network 3 of a subway station, fire extinguishing gas can be directly connected into the automatic fire extinguishing gas extinguishing pipe network 3 of the station, and the existing automatic fire extinguishing pipe network can utilize the existing resources to achieve a fire prevention function to the maximum extent. Because the gas flow rate supplied to the air curtain according to the flow rate of the fire extinguishing gas of the raw gas fire extinguishing pipe network 3 is low, a good fire extinguishing gas curtain cannot be formed, preferably, the system further comprises a gas fire extinguishing fan for pressurizing and accelerating the fire extinguishing gas of the gas fire extinguishing pipe network 3, and the pressurizing and accelerating of the fire extinguishing gas can be realized by utilizing the existing fan in the air curtain.
The smoke-proof and fire-proof air curtain for the subway station can be specifically set into three types, namely a single-blowing smoke-proof and fire-proof air curtain, a blowing-suction smoke-proof and fire-proof air curtain and a blowing-type smoke-proof and fire-proof air curtain. As shown in fig. 3, the single-blowing type air curtain for smoke protection and fire protection only includes the air curtain machine 100; as shown in fig. 4, the blowing-absorbing type smoke-proof and fire-proof air curtain includes the air curtain machine 100 and the air aspirator 200, wherein the air curtain machine 100 and the air aspirator 200 are arranged opposite to each other up and down; as shown in fig. 5, the counter-blowing type air curtain for smoke protection and fire protection includes two sets of the air curtains 100, and the two sets of the air curtains 100 are disposed opposite to each other.
The smoke-proof and fire-proof air curtain can be integrated into an automatic control system of the whole station, and the operation flow of the smoke-proof and fire-proof air curtain is simplified. The specific working principle is as follows:
when a fire disaster occurs in a subway station, an FAS (fire alarm system) judges the occurrence of the fire disaster firstly, a subway control system starts a smoke-proof and fire-proof air curtain of each fire-proof subarea, a subway automatic fire extinguishing system is also started simultaneously, fire extinguishing gas is conveyed to the air curtain through a gas extinguishing pipeline, and then the fire extinguishing gas is sprayed out through fire extinguishing gas spray holes in the air curtain at a certain speed. The fire extinguishing gas in the middle is strictly controlled between the two outer natural air curtains under the action of the isolation gas flow of the outer natural air curtains to form a fire extinguishing gas barrier. The middle fire extinguishing gas layer has excellent fireproof performance, and the natural air curtains on the two sides of the outer edge have excellent smoke prevention function, so that the invention has excellent smoke prevention and fireproof performance. Meanwhile, the invention fully utilizes the combination of the automatic fire extinguishing pipe network of the subway station and the new-stage air curtain technology to realize the functions of smoke prevention and fire prevention.
In summary, the smoke-proof and fire-proof air curtain for the subway station provided by the embodiment of the invention has stronger fire-proof and smoke-proof functions compared with the traditional air curtain, and can replace the traditional fire wall, fire-proof door and smoke-blocking vertical wall; the problem that the arrangement of the comprehensive pipeline of the station is hindered due to the existence of a fireproof rolling curtain, a smoke-blocking vertical wall and the like in many cases in actual design is solved, the arrangement of the comprehensive pipeline in the station is optimized, and more available space is left for the arrangement of an air pipe bridge; the air curtain is used as a flexible partition, so that the evacuation and passage of people can not be influenced while smoke is blocked, the safe evacuation time is increased for the evacuation of people, and the evacuation and rescue of people in fire are facilitated; when the arrangement of the firewall and the smoke-blocking vertical wall is difficult, or the arrangement of the smoke-blocking vertical wall and the firewall affects the indoor beauty and decoration of a building, the invention can effectively solve the problem and effectively improve the utilization rate of underground space; the aesthetic property and the space utilization rate of the air curtain are far superior to the traditional smoke-proof and fire-proof measures such as a smoke-blocking vertical wall, a fire-proof door, a fire-proof rolling curtain and the like, and more play space is left for the indoor decoration of the subway.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a subway station is with smoke protection fire prevention air curtain, includes the air curtain machine, the air curtain machine includes fan and air outlet, its characterized in that: the central authorities of air outlet are equipped with a row of gas orifice of putting out a fire, a row of gas orifice of putting out a fire is followed the length direction of air outlet arranges, gas orifice of putting out a fire is connected with the gas pipe network of putting out a fire.
2. The air curtain of claim 1 for preventing smoke and fire for a subway station, characterized in that: the row of gas fire extinguishing spray holes comprise a plurality of circular spray holes arranged at intervals.
3. The air curtain of claim 1 for preventing smoke and fire for a subway station, characterized in that: the row of gas fire extinguishing spray holes are strip-shaped continuous spray holes.
4. The air curtain of claim 1 for preventing smoke and fire for a subway station, characterized in that: the air curtain machine further comprises a controller, the controller is connected with the fan, and the controller is further connected with a subway station FAS.
5. The air curtain of claim 1 for preventing smoke and fire for a subway station, characterized in that: the gas extinguishing pipe network is an automatic fire extinguishing gas extinguishing pipe network of a subway station.
6. The air curtain of claim 5 for preventing smoke and fire of a subway station, characterized in that: the fire extinguishing system also comprises a gas extinguishing fan for pressurizing and accelerating the fire extinguishing gas of the gas extinguishing pipe network.
7. The air curtain of claim 1 for preventing smoke and fire for a subway station, characterized in that: the air curtain machine is arranged opposite to the air suction machine from top to bottom.
8. The air curtain of claim 1 for preventing smoke and fire for a subway station, characterized in that: the air curtain machine has two sets and left and right opposite setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011623608.1A CN112791326A (en) | 2020-12-31 | 2020-12-31 | Smoke-proof and fire-proof air curtain for subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011623608.1A CN112791326A (en) | 2020-12-31 | 2020-12-31 | Smoke-proof and fire-proof air curtain for subway station |
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| Publication Number | Publication Date |
|---|---|
| CN112791326A true CN112791326A (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011623608.1A Pending CN112791326A (en) | 2020-12-31 | 2020-12-31 | Smoke-proof and fire-proof air curtain for subway station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068854A (en) * | 2022-06-30 | 2022-09-20 | 中铁隧道勘测设计院有限公司 | Flue gas treatment device for subway fire protection |
-
2020
- 2020-12-31 CN CN202011623608.1A patent/CN112791326A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068854A (en) * | 2022-06-30 | 2022-09-20 | 中铁隧道勘测设计院有限公司 | Flue gas treatment device for subway fire protection |
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