CN211369230U - Subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure - Google Patents
Subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure Download PDFInfo
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- CN211369230U CN211369230U CN201921751145.XU CN201921751145U CN211369230U CN 211369230 U CN211369230 U CN 211369230U CN 201921751145 U CN201921751145 U CN 201921751145U CN 211369230 U CN211369230 U CN 211369230U
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Abstract
The utility model provides a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure to hang the wall integration in this furred ceiling with the fender cigarette around platform building staircase oral area, keep off cigarette and hang the wall mounted position and need not to fit with public area fitment again, keep off cigarette and hang the wall and enclose the fender scope and hug closely building staircase entrance to a cave border, ensure to keep off the cigarette ability of hanging the wall in the accuse cigarette of building staircase oral area. Comprises a suspended ceiling panel, a side smoke-blocking vertical wall, a rear smoke-blocking vertical wall and a front smoke-blocking vertical wall. The suspended ceiling panel is fixed on a structural middle plate between the station hall and the platform through a suspended ceiling framework; the side smoke-blocking vertical wall and the rear smoke-blocking vertical wall are arranged along a floor slab perforated hole edge beam passing through the staircase, and the upper part of the side smoke-blocking vertical wall is penetrated from the bottom of the hole edge beam to the lower part of the suspended ceiling panel and protrudes by no less than 500 mm; the front smoke blocking vertical wall is positioned above the stair steps and close to the hole edge beam, the upper portion of the front smoke blocking vertical wall is fixed on the bottom surface of the structural middle plate, and the distance from the ceiling panel to the lower portion of the stair steps is not less than 2.3 m.
Description
Technical Field
The utility model relates to a subway platform, in particular to subway platform public area building staircase mouth hinders smoke type furred ceiling structure.
Background
The subway platform is limited by the characteristics of deep burial and 'natural long and narrow' of a station, and generally has no condition of directly leading to an external outlet, so that an open staircase connecting the platform to a station hall in a platform public area is a main channel for evacuating people to the station hall in the case of a fire of the platform.
Due to the influence of height difference, the hot pressing can drive the smoke of the platform to upwards spread to a safety area along the open building escalator opening during fire, and personnel are influenced to evacuate to the station hall access. When the station floor is on fire, smoke is restrained and blocked from spreading to the station hall through certain smoke prevention and discharge measures, so that the public areas of the escalator and the station hall are not disturbed by smoke and are the key points of fire and smoke prevention and discharge in the public areas of the subway station.
In order to strictly implement standard smoke prevention and exhaust measures for public area stair openings, smoke blocking vertical walls are arranged around the hole holes of the stair openings of public areas of bus stations in all parts of the country at present, and the ventilation and air conditioning professional strives to realize the pull-down wind speed of not less than 1.5m/s at the stair openings of platform stairs through a smoke prevention and exhaust mode.
However, the range of setting the smoke-blocking vertical wall around the platform building staircase mouth is often limited by the integral ceiling form of the public area decoration, even if the public area decoration specialty carries out special cooperation with the smoke prevention and discharge specialty at the building handrail mouth, the range of enclosing the smoke-blocking vertical wall of a large number of station building staircase mouths can not be tightly attached to the building staircase mouth edge, and the range of enclosing is larger than the original design purpose, so that the smoke control capability of the smoke-blocking vertical wall at the building staircase mouth is certainly weakened.
On the other hand, in order to meet the pull-down wind speed not less than 1.5m/s, the platform smoke prevention and exhaust mode is to open a local sliding door of a platform door and use a tunnel fan to assist the platform public area in discharging smoke. However, when the local sliding door of the platform door is opened, part of the smoke of the platform can flow into the underground area, so that the smoke movement is disordered, and the spreading range is expanded. Fire departments in various places in fire control acceptance have a divergence on whether the sliding door of the platform door can be opened, if the sliding door is not opened any more, the tunnel fan cannot participate in auxiliary smoke discharge in a public area of the platform, and the air volume and the smoke discharge pipe diameter of the smoke discharge fan of the platform are required to be increased to meet the requirement of the drop-down air speed of 1.5m/s at the entrance of the escalator, so that the scale of the station and the mechanical engineering quantity are increased, and particularly, the layer height of the station can be increased and the layout of equipment rooms can be greatly adjusted for more and more 6A and 8A marshalling stations.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure is provided to hang down the wall integration in this furred ceiling with platform building staircase oral area fender cigarette all around, keep off the cigarette and hang down the wall mounted position and need not again with the public area fitment cooperation, keep off the cigarette and hang down the wall and enclose the fender scope and hug closely building staircase entrance to a cave border, ensure to keep off the cigarette accuse cigarette ability of the wall that hangs down at building staircase oral area of cigarette.
The technical scheme that this practicality was adopted to solve above-mentioned technical problem is as follows:
the utility model discloses a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure, keep off cigarette including furred ceiling panel, side and hang down wall, rear end and keep off cigarette and hang down wall and front end and keep off cigarette and hang down wall, characterized by: the suspended ceiling panel is fixed on a structural middle plate between the station hall and the platform through a suspended ceiling framework; the side smoke-blocking vertical wall and the rear smoke-blocking vertical wall are arranged along a floor slab perforated hole edge beam passing through the staircase, and the upper part of the side smoke-blocking vertical wall is penetrated from the bottom of the hole edge beam to the lower part of the suspended ceiling panel and protrudes by no less than 500 mm; the front smoke blocking vertical wall is positioned above the stair steps and close to the hole edge beam, the upper portion of the front smoke blocking vertical wall is fixed on the bottom surface of the structural middle plate, and the distance from the ceiling panel to the lower portion of the stair steps is not less than 2.3 m.
A fan is arranged in the ceiling framework and fixed on the structural middle plate through a hanging rod, airflow is introduced into the fan from the facing air inducing port, and the airflow passes through the airflow spraying pipe and is sent out from the electric nozzle at a high speed.
The electric nozzles are transversely distributed on the top surface of the facing wind belt above the stair steps, and the distance between the electric nozzles and the side smoke blocking vertical wall is not less than 1.5 m.
The beneficial effects of the utility model are that:
the smoke blocking vertical wall at the escalator entrance of the station building is integrated in the suspended ceiling, and the range of the smoke blocking vertical wall is tightly attached to the edge of the escalator entrance, so that the smoke control capability of the smoke blocking vertical wall at the escalator entrance is ensured. The ceiling panel can be uniformly typeset according to the arrangement position of the smoke-blocking vertical wall and the decoration style of the public area, and the smoke control function and the decoration aesthetics are met.
And secondly, when a fire disaster occurs in the station public area, the air is induced and supplied by the fan in the suspended ceiling on the premise of not opening the sliding door of the platform door, the smoke of the platform layer is restrained from diffusing to the station hall layer, and the original smoke exhaust fan of the auxiliary platform provides a pull-down air speed of not less than 1.5 m/s.
And thirdly, smoke blocking and smoke prevention are integrated in the suspended ceiling of the staircase entrance to form a smoke blocking dual measure, so that the safety of the staircase entrance of the only escape passage in the public area of the subway platform is ensured, and the subway fire protection system has great social significance for subway fire protection management. The utility model discloses a wireless control technique and intelligent control technique, when being convenient for debug and maintain, can the full aspect detect data and draw, provide the primary data to putting up of track traffic operation safety wisdom platform.
And the style of the smoke-resistant ceiling panel is customized according to the decoration style of a specific station public area, and the smoke-resistant ceiling panel can be assembled on site and installed in the upper space of the staircase entrance after being prefabricated in a factory, so that the smoke-resistant ceiling panel is attractive in whole, economical in manufacturing cost, simple in construction interface and control interface and wide in popularization.
Drawings
Fig. 1 is the utility model discloses a subway platform public area building staircase mouth hinders smoke-type suspended ceiling structure's structural schematic diagram.
FIG. 2 is the utility model discloses a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure top view
FIG. 3 is the utility model discloses a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure side view
Figure 4 is the utility model discloses a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure elevation picture
Wherein the reference numbers are as follows: suspended ceiling panel 1, suspended ceiling frame 2, structural middle plate 3, hole side beam 4, staircase step 5, side smoke-blocking vertical wall 6, rear smoke-blocking vertical wall 7, front smoke-blocking vertical wall 8, fan 9, suspender 10, airflow spray pipe 11, electric nozzle 12, facing wind belt 13, intelligent electric cabinet 14, finishing conversion panel 15, facing induced draft 16, airflow 17, public area suspended ceiling 18 and cable 19.
Detailed Description
The technical scheme is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 4, the utility model discloses a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure, including furred ceiling panel 1, side keep off cigarette and hang wall 6, rear end keep off cigarette and hang wall 7 and front end keep off cigarette and hang wall 8. The suspended ceiling panel 1 is fixed on a structural middle plate 3 between a station hall and a station through a suspended ceiling framework 2. The side smoke-blocking vertical wall 6 and the rear smoke-blocking vertical wall 7 are arranged along the floor slab perforated hole edge beam 4 which passes through the staircase, and the upper part of the side smoke-blocking vertical wall is penetrated from the bottom of the hole edge beam 4 to the lower part of the suspended ceiling panel 1 and protrudes by no less than 500 mm; the front smoke blocking vertical wall 8 is positioned above the stair step 5 and close to the hole edge beam 4, the upper portion of the front smoke blocking vertical wall is fixed on the bottom surface of the structural middle plate 3, and the vertical distance from the ceiling panel 1 to the stair step 5 is not less than 2.3 m. The smoke-blocking vertical wall at the escalator entrance of the station building is integrated in the suspended ceiling, the range of the smoke-blocking vertical wall is tightly attached to the edge of the escalator entrance, and the smoke control capability of the smoke-blocking vertical wall at the escalator entrance is ensured. The ceiling panel can be uniformly typeset according to the arrangement position of the smoke-blocking vertical wall and the decoration style of the public area, and the smoke control function and the decoration aesthetics are met.
Referring to fig. 1 to 4, a finishing conversion panel 15 is provided at the junction of the ceiling panel 1 and the public area ceiling 18. A fan 9 is arranged in the suspended ceiling frame 2 and is fixed on the structural middle plate 3 through a suspension rod 10, the fan 9 introduces air flow from a facing air induction port 16, and the air flow is sent out at a high speed through an electric nozzle 12 through an air flow spray pipe 11. The electric nozzles 12 are transversely distributed on the top surface of the facing wind belt 13 above the stair steps 5, and the distance between the electric nozzles 12 and the side smoke-blocking vertical wall 6 is not less than 1.5 m. The electric nozzle 12 is provided with an angle-adjustable actuator, and the air supply direction can be manually adjusted and can also swing within the range of 30 degrees. The size and the decoration style of the decoration wind band 13 can be arranged and typeset according to the decoration style of the suspended ceiling 18 in the public area. The fan 9, the airflow spray pipe 11 and the electric nozzle 12 are configured in a mode selection mode according to the principle of providing downward airflow 17 of not less than 1.5m/s at the stair opening. When a fire disaster occurs in a station public area, the air supply is induced by the fan in the suspended ceiling under the premise of not opening the sliding door of the platform door, so that the requirement that the smoke of the platform layer is restrained from diffusing to the station hall layer and the original smoke exhaust fan of the auxiliary platform provides the pull-down air speed of not less than 1.5m/s is met.
The intelligent electric cabinet 14 is arranged in the ceiling framework 2 close to the fan 9. Two paths of cables 19 are introduced into the station environmental control electric control room and connected with the intelligent electric control box 14, one path is connected with a fan 9 motor, and the other path is connected with an actuator of the electric nozzle 12. The intelligent electric cabinet 14 is connected with a Fire Alarm System (FAS) and is responsible for linking the fan 9 and the electric nozzle 12 to execute a smoke prevention mode after receiving a fire alarm signal.
Referring to fig. 1 to 4, a smoke-blocking vertical wall 6 at the side of a station staircase entrance and a smoke-blocking vertical wall 7 at the rear end are both arranged along a staircase hole side beam 4, the front end of the smoke-blocking vertical wall is close to the hole side beam 4 as far as possible, and the requirement that the step distance from the staircase is not less than 2.3m is met. The enclosed smoke-blocking vertical wall is integrated in the suspended ceiling, the suspended ceiling panel 1 is subjected to local decoration and typesetting according to the decoration style of the public area after the surrounding range of the smoke-blocking vertical wall is determined at first, the secondary decoration of the public area at the mouth part of the stair is not required to be met, the surrounding range of the smoke-blocking vertical wall at the mouth part of the stair is enlarged, and the smoke-blocking capacity at the mouth part of the stair is effectively ensured.
When a fire disaster occurs in a station floor public area of a station, the FAS system confirms fire disaster information, the station public area smoke exhaust fan is linked to exhaust smoke of the station, and meanwhile, the intelligent electric cabinet in the suspended ceiling is linked with the fan 9 and the electric nozzle 12 to execute a building staircase entrance auxiliary smoke prevention mode after receiving the FAS signal.
A fan 9 integrated in the suspended ceiling introduces airflow from a facing air inducing port 16, the fan 9 is based on an automatic jet flow guiding system, the theoretical basis is the momentum conservation law and the disturbance characteristic of high-speed jet flow in aerodynamics, a small amount of gas is ejected at a high speed in operation, a large amount of air which is static around is effectively induced and stirred, and the air reaches a working area according to the target and the direction specified by the design so as to meet the ventilation requirement. The introduced air flow enters the air flow spray pipe 11 through the fan 9 and is sent out from the electric nozzle 12 at high speed. The air flow range is larger than or equal to 14m, the air speed of the outlet of the electric nozzle 12 is larger than or equal to 14m/s, downward air flow of the air supply flow which is not smaller than 1.5m/s is formed at the entrance of the escalator through the facing air belt 13 of the ceiling panel, the smoke of the station platform is restrained and blocked from spreading to the station hall, the escalator and the public area of the station hall are not disturbed by the smoke, and the smoke prevention capability of the entrance of the escalator is effectively ensured.
The electric nozzles 12 are transversely distributed on the top surface of the facing wind belt 13 above the stair steps, and in order to prevent the high-speed airflow from disturbing the smoke outside the smoke-blocking vertical wall, the distance between the electric nozzles and the side smoke-blocking vertical wall is not less than 1.5 m. The electric nozzle is provided with an angle-adjustable actuator, and the air supply direction can be manually adjusted and also can swing within the range of 30 degrees to adjust the angle. The decorative surface wind belt 13 is made of louvers, grids or hollow parts based on the decoration style of a public area, and the electric nozzle 12 needs to be exposed to avoid blocking the hollow part of the decorative surface wind belt 13 caused by airflow. The intelligent distribution box has the functions of local and remote wireless control and data storage, can wirelessly adjust the angle of the electric nozzle 12, and is convenient for setting the pull-down wind speed and the airflow direction during the test. The data storage function can record the running air quantity, the current and the air port angle of the fan debugged in the past of the station building staircase corresponding to the serial number, and upload the result to the vehicle control room, so that the station staff can conveniently control the setting condition of the whole station and orderly inquire.
The utility model discloses can be according to each subway station building staircase mouth size and public area fitment style, at first confirm to keep off the cigarette wall that hangs down and set up the position, carry out the lectotype configuration to fan, air current spray tube, electronic spout according to the principle that provides the downward air current of stair mouth not less than 1.5 ms simultaneously. After testing and technological typesetting, the decorative panel can be prefabricated in a factory and then installed in the upper space of the building staircase mouth in a field assembly mode, and the decorative panel is connected with the suspended ceiling in the outer area of the building staircase in the public area to meet the requirements of functionality and attractiveness.
The foregoing is illustrative of the principles of the present invention and is not intended to limit the invention to the exact construction and operation shown and described, and accordingly, all modifications and equivalents may be resorted to, falling within the scope of the claims.
Claims (4)
1. The utility model provides a subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure, includes that furred ceiling panel (1), side keep off cigarette and hang down wall (6), rear end keep off cigarette and hang down wall (7) and front end keep off cigarette and hang down wall (8), characterized by: the suspended ceiling panel (1) is fixed on a structural middle plate (3) between a station hall and a station platform through a suspended ceiling framework (2); the side smoke-blocking vertical wall (6) and the rear smoke-blocking vertical wall (7) are arranged along the floor perforated hole boundary beam (4) which passes through the staircase, and the upper part of the side smoke-blocking vertical wall is penetrated from the bottom of the hole boundary beam (4) to the lower part of the suspended ceiling panel (1) and protrudes by no less than 500 mm; the front smoke blocking vertical wall (8) is positioned above the stair steps (5) and close to the hole edge beam (4), the upper portion of the front smoke blocking vertical wall is fixed on the bottom surface of the structural middle plate (3), and the vertical distance from the ceiling panel (1) to the lower portion of the stair steps (5) is not less than 2.3 m.
2. The smoke blocking type ceiling structure of the stair well of the subway platform public area as claimed in claim 1, characterized in that: and a decoration conversion panel (15) is arranged at the joint of the ceiling panel (1) and the public area ceiling (18).
3. The smoke blocking type ceiling structure of the stair well of the subway platform public area as claimed in claim 1, characterized in that: set up fan (9) in furred ceiling frame (2), be fixed in on structure medium plate (3) by jib (10), this fan (9) introduce the air current from veneer induced draft mouth (16), and the air current is sent out by electronic spout (12) at a high speed through air current spray tube (11).
4. The smoke blocking type ceiling structure of the stair well of the subway platform public area as claimed in claim 3, wherein: the electric nozzles (12) are transversely distributed on the top surface of the facing wind belt (13) above the stair steps (5), and the distance between the electric nozzles (12) and the side smoke-blocking vertical wall (6) is not less than 1.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751145.XU CN211369230U (en) | 2019-10-17 | 2019-10-17 | Subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921751145.XU CN211369230U (en) | 2019-10-17 | 2019-10-17 | Subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure |
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| CN211369230U true CN211369230U (en) | 2020-08-28 |
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| CN201921751145.XU Active CN211369230U (en) | 2019-10-17 | 2019-10-17 | Subway platform public area building staircase mouth hinders cigarette formula furred ceiling structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566342A (en) * | 2021-08-18 | 2021-10-29 | 四川九门铁创交通技术有限公司 | Energy-saving device of subway station ventilation air-conditioning system and control method |
-
2019
- 2019-10-17 CN CN201921751145.XU patent/CN211369230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566342A (en) * | 2021-08-18 | 2021-10-29 | 四川九门铁创交通技术有限公司 | Energy-saving device of subway station ventilation air-conditioning system and control method |
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