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Piston fan pressure releasing method for subway

A piston air and mechanical technology, which is applied in the fields of earth drilling, mine/tunnel ventilation, mining equipment, etc., can solve problems such as station hall temperature instability, platform overheating, station hall cold, etc.

Inactive Publication Date: 2009-09-23
SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Piston fan pressure releasing method for subway
  • Piston fan pressure releasing method for subway

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Embodiment Construction

[0014] Hereinafter, the features of the present invention and other related features will be further described in detail through embodiments in conjunction with the accompanying drawings, so as to facilitate the understanding of those skilled in the industry:

[0015] Such as Figure 1-2 As shown, the numbers 1-8 respectively indicate: fan 1, air supply outlet 2, station hall 3, station entrance 4, pressure relief hole 5, platform 6, air duct system 7, static pressure chamber 8.

[0016] This embodiment includes the station platform 6, the station hall 3, the fan 1 and the air duct system 7 connected to it. A pressure relief hole 5 is provided at the station entry end 4, and the air duct system controlled by the fan 1 and its connection 7 Control the exhaust air volume, set the air outlet 2 in the station hall 3, and connect the pressure relief hole 5 and the air outlet 2 through the air duct system 7. The positive pressure end of the fan 1 is connected to the air supply port 2 thr...

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Abstract

The present invention belongs to the field of fixed buildings, and relates to an underground railway piston air mechanical pressure-relief method applicable to open or closed underground railway station. Said method is characterized by that in the tunnel station platform train entrance end a pressure relief machine is set, and its utilizes fan and air pipe system which is connected with said fan and controlled by it to make the pressure relief hole be communicated with air outlet of station hall, and at the same time of relieving pressure an air flow circulation can be implement.

Description

Technical field [0001] The invention relates to fixed buildings, and is a subway piston wind mechanical pressure relief method suitable for open or closed subway underground stations (the platform does not have a fully enclosed screen door). Background technique [0002] In underground stations of the subway, as the train enters the station, the high-speed piston wind rushes towards the platform, and the air exchange between the subway and the outside atmosphere is formed through the escalators, station halls, and entrances. Excessively high piston wind not only affects the safety of passengers, but also creates a huge disturbance to the air environment in the station. [0003] At present, the commonly used method to control the impact of the piston wind on the train entering the station is to set up a roundabout air duct at both ends of the station, or set up a piston air shaft at the station end. Before the train enters the station, a part of the pressure is discharged through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/00
Inventor 郑晋丽闫正才刘文胜
Owner SHANGHAI TUNNEL ENGINEERING RAILWAY TRANSPORTATION DESIGN INSTITUTE