Subway station fire evacuation scissor stair pressurization air supply system

A technology for subway stations and air supply systems, applied in ventilation systems, stairs, applications, etc., can solve the problems of narrow space, difficult design of pressurized air supply, and limited space for ventilation and disaster prevention tuyere. Solve the problem of fire evacuation, the effect of a small number

Pending Publication Date: 2021-08-13
CHINA RAILWAY LIUYUAN GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of narrow space between scissor stairs inside subway stations, limited space for traditional ventilation and disaster prevention outlets, and difficult design of pressurized air supply inside evacuation stairs, and provides a pressurized air supply system for scissor stairs in subway stations, which is especially suitable for To solve the problem of fire evacuation in subway stations with high drop

Method used

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  • Subway station fire evacuation scissor stair pressurization air supply system
  • Subway station fire evacuation scissor stair pressurization air supply system
  • Subway station fire evacuation scissor stair pressurization air supply system

Examples

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Embodiment 1

[0029] Embodiment 1: as Figures 1 to 5 Shown, a kind of scissors staircase pressurized air supply system for subway station fire evacuation, comprises subway station hall floor, subway platform floor and the scissors staircase that is used to connect subway platform floor and subway station hall floor; Wherein:

[0030] The scissors staircase includes a first staircase 12 and a second staircase 13 arranged in a superimposed manner. The subway station hall floor is provided with a station hall staircase vestibule 17, and the subway platform floor is provided with a platform staircase vestibule 18. Hall stair vestibule 17 and platform stair vestibule 18 comprise first stair vestibule and second stair vestibule respectively;

[0031] One side of the scissors staircase is provided with a pressurized air supply pipe well 16, and a plurality of vertical metal air ducts 11 are arranged in the described pressurized air supply pipe well 16, which are respectively the first vertical me...

Embodiment 2

[0039] Embodiment 2: as figure 1 , Figure 5 As shown, as a preferred implementation of Example 1, the pressurized air supply system for scissor stairs also includes a plurality of manual air valves 5 and 70°C fire dampers 6, and the manual air valves 5 are respectively arranged in the corridor air duct, the second A normally closed tuyere 8 and a second normally closed tuyere 9, the 70°C fire dampers 6 are respectively arranged on the fire door side of the station hall floor or platform or at the first normally closed tuyere 8 and the second normally closed tuyere 9.

[0040] Further, in the present embodiment 1 to 2, the first pressurized blower 1, the second pressurized blower 2, the third pressurized blower 3 and the fourth pressurized blower 4 can be set in a dedicated pressurized machine room to Ensure that the pressurized blower is not damaged by erosion and can operate reliably in the event of a fire.

[0041] Such as Figure 4 As shown, the scissor stairs pressuriz...

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Abstract

The invention relates to a subway station fire evacuation scissor stair pressurization air supply system. The system comprises a subway platform layer, a subway station hall layer, a scissor stair, a pressurization air supply pipe well and a plurality of pressurization air feeders, wherein a plurality of vertical metal pipelines connected with the pressurization air feeders are arranged in the pressurization air supply pipe well, and carry out independent pressurization air supply on two staircases of the scissor stair, a platform staircase front room and a station hall staircase front room so as to ensure that indoor positive pressure is kept when the scissor staircase and the staircase front room are in fire. Aiming at the problems of limited space of an underground station and fire evacuation design, the invention provides the novel high-fall subway station scissor stair pressurization air supply system under the condition of meeting functional design by utilizing the characteristics of mutual overlapping of scissor stairs, small quantity of subway station front rooms and small air volume, so that the ventilation design is optimized, the fire safety is further guaranteed, and the civil engineering scale of the underground station is reduced.

Description

technical field [0001] The invention relates to the field of subway station fire protection, in particular to a pressurized air supply system for scissor stairs used for subway station fire evacuation, which can effectively prevent smoke from entering the interior of the stairs. Background technique [0002] With the continuous development of urban rail transit, the urban underground space is becoming more and more tense, and the scissor staircase with higher utilization rate of underground space has a high application prospect in subway stations. However, the space of the scissors stairwell arranged inside the subway station is narrow, and the setting space of the traditional ventilation and disaster prevention air outlet is limited, which restricts the popularization and application of the scissors stairwell in the subway station. [0003] On this basis, the present invention provides a pressurized air supply system for scissor stairs for subway station fire evacuation. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/06F24F13/02F24F11/74E04F17/04E04F11/02E04F11/022E04B1/94E02D29/045
CPCE02D29/045E04B1/94E04B1/942E04F11/02E04F11/022E04F17/04F24F7/06F24F13/02F24F11/74
Inventor 廖荣王东伟田峰贺维国费曼利戴新朱祝龙姜林月陈宜汉陈洋欧阳理想
Owner CHINA RAILWAY LIUYUAN GRP CO LTD
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