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Piston wind mechanical pressure release structure for subway

A technology of pressure relief structure and piston wind, applied in the field of fixed buildings, can solve the problems of overheating of the platform, cold of the station hall, unstable temperature of the station hall, etc.

Inactive Publication Date: 2007-10-10
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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Problems solved by technology

However, the station hall is connected to the outside through the entrance and exit. Due to the influence of the train piston wind, the air flow between the station hall and the outside is formed, resulting in the situation that the station hall is locally cold and the platform is overheated.
Using the traditional piston wind control technology, the temperature in the station hall in the alpine region is unstable in winter, and the temperature in some areas reaches 0°C, and the temperature in the station hall is 10-20°C lower than that of the platform

Method used

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Embodiment Construction

[0015] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0016] As shown in Figure 1-2, the numbers 1-8 represent: fan 1, air supply outlet 2, station hall 3, entry port 4, pressure relief hole 5, platform 6, air duct system 7, and static pressure chamber 8.

[0017] This embodiment includes the station platform 6, the station hall 3, and the static pressure chamber 8, and also includes the air duct system 7 connected to the fan 1 and its control, and the air duct system 7 is connected with a pressure relief hole located at the entrance end 4 of the platform 5 and the air outlet 2 located in the station hall 3. The positive pressure end of the fan 1 is connected to the air outlet 2 of the station hall 3 through the air duct system 7, and the negative pressure end is connected to the pres...

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Abstract

A mechanical pressure-discharging system of subway piston wind is prepared for setting pressure discharging hole at tunnel opening of train getting in end on station platform, leading vent air from pressure discharging hole to station hall through fan and air flowing hole of air pipe controlled by fan for realizing air stream circulation when pressure of piston wind is discharged.

Description

technical field [0001] The invention relates to fixed buildings, and is a piston-air mechanical pressure relief structure for subways in open or closed subway stations (the platform is not provided with fully enclosed screen doors). Background technique [0002] In the subway underground station, as the train enters the station, the high-speed piston wind rushes to the platform, and forms an airflow exchange between the subway and the outside atmosphere through the escalator, station hall, entrance and exit. Excessive piston wind not only affects passenger safety, but also creates a huge disturbance to the air environment in the station. [0003] At present, the commonly used way to control the piston wind impact of trains entering the station is to set up detour air ducts in the up and down sections at both ends of the station, or set up piston air shafts at the end of the station. , thereby alleviating the impact of pit stops. [0004] In the alpine region, due to the hu...

Claims

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Application Information

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IPC IPC(8): F24F7/06
Inventor 郑晋丽闫正才刘文胜
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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