CN218451803U

CN218451803U - Be applied to smoke protection air curtain of subway platform conflagration

Info

Publication number: CN218451803U
Application number: CN202220792615.2U
Authority: CN
Inventors: 高旭聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2023-02-07
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to a subway station fire-fighting equipment technical field specifically is a be applied to smoke prevention air curtain of subway platform conflagration, it has the effect that can effectively discharge fume and stop smog and spread, including air jet system, getter device and automatic control device, air jet system includes the supporting shoe, the inside of supporting shoe is provided with spouts the air cavity, and extend the supporting shoe top, the bottom of spouting the air cavity is provided with the several fan, and every fan all bloies to the oblique top, the bottom of fan is connected with the intake pipe, intake pipe and subway platform's external intercommunication, the getter device includes the aspirator, and the bottom of aspirator is provided with the suction slot, the top of aspirator is provided with the exhaust groove, and the top intercommunication in exhaust groove has the exhaust pipe, the external intercommunication of exhaust pipe and subway platform, automatic control device includes smoke transducer and control box, be provided with the relay in the control box, the relay respectively with smoke transducer, the aspirator, be connected through the electric wire electricity between fan and the power.

Description

Be applied to smoke protection air curtain of subway platform conflagration

Technical Field

The utility model relates to a subway station fire-fighting equipment technical field specifically is a be applied to smoke protection air curtain of subway platform conflagration.

Background

As is well known, the subway is an important component of modern urban transportation facilities, but the fire safety of the subway is the central importance, and as the requirement on fire safety of people is higher and higher, the design standard of subway design for underground station disaster prevention is higher and higher. After the 'subway design fire standard' GB51298-2018 is issued at the end of 2018, the specific fire disaster prevention design method is put into practice.

The air curtain consists of air treating equipment, ventilator, air pipe system and air distributor. The machine is arranged above doorways such as a refrigerating, air-conditioning, dustproof and heat-insulating market, a theater, a hotel, a restaurant, a conference hall, a cold storage, an operating room, a home and the like, is started, can separate indoor and outdoor air, has convenient access, can prevent indoor and outdoor cold and hot air exchange, and has the effects of dust prevention, pollution prevention and mosquito and fly prevention. The method is widely applied to the industries of electronics, instruments, pharmacy, food, precision processing, chemical engineering, shoemaking, service, commerce and the like.

Subway station conflagration is different from the ground building conflagration, and its inner space is long and narrow, maintains and is surrounded by soil around the structure, does not have the exterior space, and only several access & exit are linked together with external atmospheric environment to the station is equipped with combustible matters such as a large amount of electronic mechanical equipment and the luggage that the passenger carried, and personnel are intensive, and along with subway trades the structure of station and constantly complicates, the harm that subway conflagration probably causes is also bigger and bigger, therefore subway station conflagration has following several characteristics:

diversity: the supporting facilities of the subway station are increasingly perfect, various electrical equipment, commercial areas, newsstands and the like become indispensable components of the subway station, various fire causes of the subway station are caused due to the increase of functions, such as electrical fire, mechanical failure and fire caused by cigarette ends, luggage carried by passengers mostly has flammability, which increases uncertain factors for fire occurrence, and fire positions can also occur in various places of the station due to the complexity and changeability of the fire causes, such as station train fire, station hall fire, platform fire and the like.

Incomplete combustion: because combustible combustion needs to consume a large amount of oxygen when taking place conflagration, subway station is strong closed, only several access & exit are linked together with external atmospheric environment, the fresh air supplied by the access & exit is not enough, just so can make the incomplete combustion degree of combustible high, smoldering time is longer, and then lead to the production of a large amount of incomplete combustion products such as toxic gases such as smoke and dust and carbon monoxide, constitute serious threat to passenger's personal safety, the existence of flue gas still can reduce the visibility in the station simultaneously, slow down personnel's speed of fleing, according to statistics, the number of dying from the influence of flue gas accounts for more than 80% of total death person in the conflagration.

The temperature rise is quick: because the maintenance structure around the subway station is surrounded by soil and rock, and it is poor to discharge fume, heat transfer performance, in case the hot flue gas of taking place a fire is hardly discharged, and the inner space temperature rises rapidly, has accumulated a large amount of heats, will appear "the phenomenon of firing" when the air temperature reaches the ignition point of other combustible matters.

Difficulty in evacuation: the number of passengers in the subway station is large, the personnel density is high, the escape routes of the station are only a plurality of entrances and exits connected with the ground, once a fire disaster occurs, the phenomena of congestion and blockage at the stair entrance and the exits and exits are easy to occur, in addition, the normal power supply can be cut off due to the fire disaster, and the visibility is reduced. In addition, the danger of fire is greater due to insufficient oxygen supply, and the like, so that the difficulty of people evacuation is relatively high.

Therefore, there is a need for a smoke-proof air curtain device capable of effectively discharging smoke and blocking smoke from spreading.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a be applied to smoke protection air curtain of subway platform conflagration, it has the effect that can effectively discharge fume and block smog and stretch.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a smoke-proof air curtain applied to a fire disaster of a subway platform comprises an air injection device, an air suction device and an automatic control device, wherein the air injection device is arranged under the ground of the subway platform and comprises a supporting block, an air injection cavity is arranged inside the supporting block and extends out of the top end of the supporting block, a plurality of fans are arranged at the bottom end of the air injection cavity, each fan blows air obliquely upwards, an air inlet pipe is connected to the bottom end of each fan, and the air inlet pipe is communicated with the outside of the subway platform;

the air suction device is arranged inside the top end of the subway platform and comprises an air suction machine, an air suction groove is formed in the bottom end of the air suction machine, an exhaust groove is formed in the top end of the air suction machine, the top end of the exhaust groove is communicated with an exhaust pipe, and the exhaust pipe is communicated with the outside of the subway platform;

the automatic control device comprises a smoke sensor and a control box, the smoke sensor is arranged on the left side of the air suction device and is spaced by one end distance, the control box is arranged on the wall of the subway platform, a relay is arranged in the control box, and the relay is respectively and electrically connected with the smoke sensor, the air suction machine, the fan and the power supply through electric wires.

Preferably, a switch is arranged in the control box, the switch is electrically connected with the relay through an electric wire, and the switch is respectively electrically connected with the air aspirator and the fan through electric wires.

Furthermore, the top of supporting shoe is provided with the recess, install the apron through the bolt on the recess, the left end of apron is provided with the horizontal pole that blocks of several to cut the middle part that the several blockked the pole and be provided with the connecting rod that is the fore-and-aft direction and set up.

Furthermore, a dust exhaust cavity is arranged at the left part of the supporting block, and a dust exhaust pipe is communicated with the bottom end of the dust exhaust cavity.

Preferably, the right side of the air suction device is provided with display boards arranged in front and at the back at intervals.

Preferably, the air suction groove is arranged in an open shape.

(III) advantageous effects

Compared with the prior art, the utility model provides a be applied to smoke protection air curtain of subway platform conflagration possesses following beneficial effect:

this be applied to smoke prevention air curtain of subway platform conflagration, through the cooperation of air jet system and getter device, the air jet system blows to the getter device slope, and the getter device absorbs the air to form a smoke prevention air curtain, can discharge smog rapidly, can effectually block the effect that smog continues to stretch, it is jet-propelled through air jet system looks getter device, can accelerate the smog removal around driving, thereby play the effect of smog by the getter device exhaust with higher speed.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the present invention at a point a shown in fig. 1.

In the figure: 1. a support block; 2. spraying an air cavity; 3. a fan; 4. an air inlet pipe; 5. an aspirator; 6. a suction groove; 7. a wind discharging groove; 8. an exhaust duct; 9. a smoke sensor; 10. a control box; 11. a relay; 12. A switch; 13. a cover plate; 14. a blocking lever; 15. a connecting rod; 16. a dust exhaust cavity; 17. a dust exhaust pipe; 18. A display board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Please refer to fig. 1-2, the utility model discloses a be applied to smoke protection air curtain of subway platform conflagration, including air jet system, getter device and automatic control device, air jet system sets up in the subaerial of subway platform, air jet system includes supporting shoe 1, the inside of supporting shoe 1 is provided with air cavity 2, and extend supporting shoe 1 top, air cavity 2 is the slope setting, air cavity 2's bottom is provided with several fan 3, several fan 3 is the fore-and-aft direction and arranges, every fan 3 all blows to the oblique top, the bottom of fan 3 is connected with intake pipe 4, intake pipe 4 communicates with the external world of subway platform, fan 3 blows in the low-speed railway platform with the air outside the subway platform, and blow to getter system, the left part of supporting shoe 1 is provided with dust exhaust cavity 16, and dust exhaust pipe 17 has been communicated to the bottom of dust exhaust cavity 16, the dust or the small particles that get into air cavity 2 can get into dust exhaust pipe 17 through dust exhaust cavity 16, dust exhaust pipe 17 has been washed once to discharge dust exhaust pipe 17 every a period with water, the top of supporting shoe 1 is provided with the recess, the connecting rod that the recess is installed through bolt 13, it is provided with the left side of the pole that blocks in the air cavity and the pole 14 and prevents that the left side of the pole that blocks and block and the pole and set up.

Getter device sets up inside the top of subway platform, getter device includes aspirator 5, and the bottom of aspirator 5 is provided with suction slot 6, suction slot 6 is uncovered form setting, increase the efficiency of breathing in and the effect of breathing in, the top of aspirator 5 is provided with exhaust duct 7, and the top intercommunication of exhaust duct 7 has exhaust pipe 8, exhaust pipe 8 and subway platform's external intercommunication, aspirator 5 is outside the subway platform with the flue gas suction, and absorb jet system spun air, wherein need notice, there is great interval intake pipe 4 and exhaust pipe 8 have between the external world of subway platform, can not let the intake pipe inhale the air of exhaust pipe 8 exhaust, the display board 18 that sets up around aspirator's the right side interval is provided with, display board 18 can play the supplementary effect that blocks smog and advance, also can place some advertisements or suggestion banner etc. simultaneously.

Automatic control device includes smoke transducer 9 and control box 10, smoke transducer 9 sets up in the left side of getter device, and interval one end distance, control box 10 sets up on the wall of subway platform, be provided with relay 11 in the control box 10, relay 11 respectively with smoke transducer 9, aspirator 5, be connected through the electric wire electricity between fan 3 and the power, smoke transducer 9 detects when smog concentration is great, can send the signal of telecommunication to relay 11, relay 11 can supply power to aspirator 5 and fan 3 respectively after receiving the signal, make jet device and getter device work, thereby discharge smog, be provided with switch 12 in the control box 10, switch 12 passes through the electric wire electricity with relay 11 and is connected, and switch 12 respectively with the connection through the electric wire electricity between aspirator 5 and the fan 3, accessible switch 12 manual control jet device and getter device's opening and closing.

In conclusion, when the smoke-proof air curtain applied to a fire disaster at a subway platform is used, when the smoke sensor 9 detects that smoke concentration is high, an electric signal is automatically sent to the relay 11, the relay 11 respectively supplies power to the air aspirator 5 and the fan 3 after receiving the electric signal, the fan 3 sucks external air through the air inlet pipe 4 and then obliquely blows fresh air to the air aspirator, smoke can be effectively prevented from continuously spreading rightwards due to oblique blowing of the air aspirator, the smoke aspirator 5 of the air aspirator can discharge the air entering the air suction groove to the outside through the exhaust pipe, smoke is discharged, and a smoke-proof air curtain is formed through the cooperation of the air aspirator and the air aspirator, so that a good smoke-proof effect can be achieved, when the smoke concentration is reduced, the smoke sensor 9 can send the electric signal to the relay 11 again, the relay 11 can stop supplying power to the air aspirator 5 of the fan 3, and the air aspirator stop working.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be applied to smoke protection air curtain of subway platform conflagration which characterized in that: the underground subway platform air injection device comprises an air injection device, an air suction device and an automatic control device, wherein the air injection device is arranged under the ground of a subway platform and comprises a supporting block (1), an air injection cavity (2) is arranged inside the supporting block (1) and extends out of the top end of the supporting block (1), a plurality of fans (3) are arranged at the bottom end of the air injection cavity (2), each fan (3) blows air obliquely upwards, an air inlet pipe (4) is connected to the bottom end of each fan (3), and the air inlet pipe (4) is communicated with the outside of the subway platform;

the air suction device is arranged inside the top end of the subway platform and comprises an air suction machine (5), an air suction groove (6) is formed in the bottom end of the air suction machine (5), an exhaust groove (7) is formed in the top end of the air suction machine (5), the top end of the exhaust groove (7) is communicated with an exhaust pipe (8), and the exhaust pipe (8) is communicated with the outside of the subway platform;

the automatic control device comprises a smoke sensor (9) and a control box (10), the smoke sensor (9) is arranged on the left side of the air suction device, and is spaced by one end distance, the control box (10) is arranged on the wall of the subway platform, a relay (11) is arranged in the control box (10), and the relay (11) is respectively electrically connected with the smoke sensor (9), the air suction machine (5), the fan (3) and the power supply through electric wires.

2. The smoke-proof air curtain applied to the fire disaster of the subway platform as claimed in claim 1, wherein: a switch (12) is arranged in the control box (10), the switch (12) is electrically connected with the relay (11) through an electric wire, and the switch (12) is electrically connected with the air aspirator (5) and the fan (3) through electric wires respectively.

3. The air curtain of claim 1, wherein the air curtain is a smoke-proof air curtain applied to a fire at a subway platform, and comprises: the top of supporting shoe (1) is provided with the recess, install apron (13) through the bolt on the recess, the left end of apron (13) is provided with the horizontal pole (14) that blocks of several to the middle part of cutting several and blocking pole (14) is provided with connecting rod (15) that are the fore-and-aft direction and set up.

4. The smoke-proof air curtain applied to the fire disaster of the subway platform as claimed in claim 1, wherein: the left part of the supporting block (1) is provided with a dust exhaust cavity (16), and the bottom end of the dust exhaust cavity (16) is communicated with a dust exhaust pipe (17).

5. The air curtain of claim 1, wherein the air curtain is a smoke-proof air curtain applied to a fire at a subway platform, and comprises: display boards (18) which are arranged in the front and the back are arranged on the right side of the air suction device at intervals.

6. The smoke-proof air curtain applied to the fire disaster of the subway platform as claimed in claim 1, wherein: the air suction groove (6) is arranged in an open shape.