CN218882276U

CN218882276U - Subway middle yard station public area building staircase

Info

Publication number: CN218882276U
Application number: CN202222958830.8U
Authority: CN
Inventors: 唐海峰; 张�雄; 罗缘; 廖德金; 许东; 刘康庄; 宋泽涛; 桂银; 熊胜益
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd; Southwest Survey and Design Co Ltd of China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd; Southwest Survey and Design Co Ltd of China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-04-18
Anticipated expiration: 2032-11-07

Abstract

The utility model relates to a subway zhongting station public area building staircase, it includes building staircase body and kuppe, and the kuppe is installed on the swash plate of building staircase body both sides, and is formed with airflow channel between kuppe and building staircase body. On this basis the utility model discloses in still can install the pressurized fan room in the kuppe, install the pressurized fan in the pressurized fan room, install the air-supply line and go out the tuber pipe on the air intake of pressurized fan and the air outlet respectively, the air intake of air-supply line extends to the upper end of kuppe towards station room direction, goes out the air outlet of tuber pipe and extends towards the station direction and communicate with airflow channel. The utility model discloses well air current channel is under the effect that pressurized fan goes out the wind, and the air current in the passageway is by local acceleration to satisfy the requirement of the downward wind speed of 1.5 ms, the building staircase body in the platform passenger accessible air current channel this moment is facing new wind direction station room sparse, thereby satisfies the sparse principle of disaster prevention.

Description

Subway zhongting station public area building staircase

Technical Field

The utility model relates to a subway building technical field, a subway zhongting station public area building staircase.

Background

According to the related requirements of 'subway design specifications' GB50157-2013 and 'subway design fire-proof standards' GB51298-2018, when a fire disaster occurs at a station platform, airflow which can effectively prevent smoke from spreading upwards is ensured at the stairway and the staircase mouth from the station hall to the platform, and the downward airflow speed is not less than 1.5m/s.

For a conventional subway station, holes are formed only in the positions from a station hall to a platform at a station staircase, and due to the fact that the area of the holes is small, fresh air with large air volume can be pulled down from the station hall at the station staircase through the negative pressure effect of a platform smoke exhaust system so as to meet the requirement of downward air speed of 1.5m/s, and at the moment, passengers at the platform are evacuated to the station hall through the station staircase facing the fresh air.

For the atrium station, in order to ensure the decoration effect, the area of the opening at the middle plate is generally larger, and the middle plate between the two groups of building escalators is usually completely cancelled. At the moment, the communication area from the station hall to the platform is multiplied, the negative pressure effect of the conventional platform smoke exhaust system is difficult to meet the requirement of the downward wind speed from the station hall to the station platform at the position of the escalator, and the smoke can also spread to the station hall along the escalator when the platform staff evacuate to the station hall through the escalator during fire possibly, so that the disaster prevention evacuation principle cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the escalator in the public area of the subway atrium station is provided, and the local wind speed at the escalator is enabled to be not less than the requirements of subway design specifications, subway design fire prevention standards and the like by additionally arranging a flow guide cover and the like.

Detailed description of the invention the scheme is as follows:

the utility model provides a subway zhongting station public area building staircase, includes building staircase body, has such characteristic, still includes the kuppe, and the kuppe is installed on the swash plate of building staircase body both sides, and encloses between kuppe and building staircase body and be formed with airflow channel.

Furthermore, a pressurized fan room is further installed in the air guide sleeve, a pressurized fan is installed in the pressurized fan room, an air inlet pipe and an air outlet pipe are respectively installed on an air inlet and an air outlet of the pressurized fan, the air inlet of the air inlet pipe extends to the upper end of the air guide sleeve towards the station hall direction, and the air outlet of the air outlet pipe extends towards the station direction and is communicated with the airflow channel.

Furthermore, a fire-proof valve is also arranged in the air outlet of the air outlet pipe.

Furthermore, a check valve is arranged at the outlet end of the pressurizing fan.

Furthermore, an access hole is also arranged on the extrusion fan room.

Furthermore, the air guide sleeve comprises upright posts, cross beams, arc-shaped beams and partition plates, the upright posts are arranged on inclined plates on two sides of the staircase body at intervals, the cross beams are arranged between the upright posts, the arc-shaped beams Liang Duiying are arranged on the cross beams, and the partition plates are correspondingly arranged on two sides and the top of the air guide sleeve.

Furthermore, a pressurized fan room is formed by separating the inside of the air guide sleeve by a partition plate.

Further, the separator is made of glass.

The beneficial effect of above-mentioned scheme is:

the utility model discloses in make local wind speed of staircase department not less than requirements such as subway design standard through installing kuppe etc. additional to satisfy the evacuation principle of disaster prevention.

Drawings

Fig. 1 is a schematic structural view of a public building staircase in a subway atrium station provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pod according to an embodiment of the present invention.

In the drawings: 1. a staircase body; 2. a dome; 3. a pressurized fan house; 4. a booster fan; 5. an air inlet pipe; 6. an air outlet pipe; 7. a fire damper; 8. a check valve; 9. a column; 10. a cross beam; 11. an arc beam; 12. a partition plate; 13. and (6) an access hole.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, which are not intended to limit the present invention.

As shown in fig. 1, the utility model discloses a subway atrium station public area building staircase that provides in the embodiment of the invention includes building staircase body 1 and kuppe 2, and kuppe 2 installs on the swash plate of building staircase body 1 both sides, and encloses between kuppe 2 and building staircase body 1 and be formed with airflow channel.

The utility model discloses in enclose formation airflow channel with the help of kuppe 2 and building staircase body 1 (including staircase and/or stair) within a definite time, through the air current in the local acceleration airflow channel to satisfy the requirement of the downward wind speed of 1.5 ms, building staircase body 1 in the platform passenger accessible airflow channel is facing new wind direction station room and is sparse this moment, thereby satisfies the sparse principle of calamity prevention.

Further, a pressurized fan room 3 is further installed in the nacelle 2 in this embodiment, a pressurized fan 4 is installed in the pressurized fan room 3, an air inlet pipe 5 and an air outlet pipe 6 are respectively installed on an air inlet and an air outlet of the pressurized fan 4, an air inlet of the air inlet pipe 5 extends to the upper end of the nacelle 2 in the station hall direction, and an air outlet of the air outlet pipe 6 extends in the station hall direction and is communicated with the airflow channel, so that fresh air is introduced from the station hall through the air inlet of the air inlet pipe 5 under the action of the pressurized fan 4, and then the fresh air is fed into the airflow channel through the air outlet of the air outlet pipe 6, so as to locally accelerate airflow in the airflow channel and ensure that the downward wind speed meets the requirement.

Furthermore, in order to prevent smoke and flame from entering the pressurized fan room 3 through the air outlet pipe under the platform fire condition, a fire damper 7 may be installed in the air outlet of the air outlet pipe 6 in this embodiment.

Furthermore, in order to avoid the occurrence of backflow, a check valve 8 may be installed on the air outlet pipe 6 of the pressurization fan 4 in this embodiment.

The utility model discloses in for overhaul, maintain corresponding equipment, still can correspond on pressurization fan room 3 and set up access hole 13 for being convenient for, and be used for sealing the lid shrouding of access hole 13 with the hinge installation on corresponding to the access hole, with open the lid shrouding when needing, and correspondingly overhaul through access hole 13, and close the lid shrouding after finishing overhauing, with sealing access hole 13.

The utility model discloses well kuppe 2 includes stand 9, crossbeam 10, arc roof beam 11 and baffle 12, and 9 intervals of stand are installed on the swash plate of 1 both sides of building staircase body, and crossbeam 10 is installed between stand 1, and the correspondence of arc roof beam 11 is installed on crossbeam 10, and the baffle correspondence is installed in 2 both sides of kuppe and top. The utility model discloses in 2, separate with baffle 12 and form pressurization fan room 3.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. The utility model provides a subway zhongting station public area building staircase, includes building staircase body, its characterized in that still includes the kuppe, the kuppe install in on the swash plate of building staircase body both sides, just the kuppe with surround between the building staircase body and be formed with airflow channel.

2. The escalator for public areas at subway central stops of a train as claimed in claim 1, wherein a pressurized fan room is further installed in said air guide sleeve, a pressurized fan is installed in said pressurized fan room, an air inlet pipe and an air outlet pipe are respectively installed on an air inlet and an air outlet of said pressurized fan, an air inlet of said air inlet pipe extends to the upper end of said air guide sleeve towards the station hall direction, and an air outlet of said air outlet pipe extends towards the station platform direction and is communicated with said airflow channel.

3. The stair of a public area of a subway middle yard station as claimed in claim 2, wherein a fire damper is further installed in the air outlet of the air outlet pipe.

4. The escalator for public areas at subway entrance stations as claimed in claim 2 or 3, wherein the outlet end of said pressurizing fan is equipped with a check valve.

5. The escalator of a public area building at a subway station as claimed in claim 4, wherein said forced draft fan house is further installed with an access hole.

6. The escalator for public areas of subway central office stations as claimed in claim 4, wherein said fairings comprise columns, beams, arc-shaped beams and partition plates, said columns are installed on the sloping plates at both sides of said escalator body at intervals, said beams are installed between said columns, said arc-shaped beams are correspondingly installed on said beams, and said partition plates are correspondingly installed on both sides and top of said fairings.

7. The escalator of claim 6, wherein the pressurized fan room is formed by dividing the inside of the air guide sleeve by the partition plate.

8. The escalator for public district of subway station as claimed in claim 6 or 7, wherein said partition is made of glass.