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Subway tunnel ventilation system and control method

A tunnel ventilation and subway technology, applied in mine/tunnel ventilation, pump control, earth-moving drilling, etc., can solve problems such as unreasonable fan configuration and waste of resources in subway tunnels

Pending Publication Date: 2021-08-03
CHINA RAILWAY SIYUAN GRP SOUTHWEST SURVEY & DESIGN CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiment of this application is to provide a subway tunnel ventilation system and its control method to solve the problem of unreasonable fan configuration in subway tunnels in the prior art, resulting in waste of resources

Method used

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  • Subway tunnel ventilation system and control method
  • Subway tunnel ventilation system and control method
  • Subway tunnel ventilation system and control method

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Embodiment Construction

[0070] Specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0071] It should be noted that, in the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other. Undue Limitation of This Application.

[0072] In the description of the present application, the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a reference to the application. limits.

[0073] In the description of this application, the terms "first, second, th...

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Abstract

The invention discloses a subway tunnel ventilation system and a control method. The subway tunnel ventilation system is used for a slope interval tunnel, and the subway tunnel ventilation system comprises a station tunnel ventilation unit and an interval tunnel ventilation unit; the station tunnel ventilation unit comprises a heat exhaust air channel and a first communication air channel communicating with the heat exhaust air channel, and the heat exhaust air channel is provided with a heat exhaust fan; the interval tunnel ventilation unit comprises a piston air channel and a mechanical air channel which can communicate with the station tunnel ventilation unit, the piston air channel and the mechanical air channel are arranged at the two ends of a station respectively, and the mechanical air channel is provided with a tunnel fan. By adjusting the quantity ratio of mechanical fans on the upper side and the lower side of a gradient section, the ventilation quantity difference required by different ventilation directions of a tunnel fire in the gradient section is matched, the quantity of tunnel fans is reduced, and the construction cost of the subway tunnel ventilation system is reduced; when the tunnel fan breaks down, the heat exhaust air channel replaces the mechanical air channel where the fault tunnel fan is located, and the application range and stability of the subway tunnel ventilation system are improved.

Description

technical field [0001] The present application relates to the technical field of subway tunnel fire protection, in particular to a subway tunnel ventilation system and a control method. Background technique [0002] At present, the conventional form of the domestic subway station is that the two ends of the station platform d are provided with an interval tunnel ventilation unit 2, and two tunnel fans 221 are arranged in the interval tunnel ventilation unit 2, such as Figure 11 shown. In the event of a fire in a section tunnel, open one side of the station platform d to rely on the two tunnel fans 221 of the section tunnel for air supply, and the other side of the station platform d to rely on the two tunnel fans 221 of the section tunnel for exhaust, forming a longitudinal push-pull in the section tunnel Air flow, the smoke is exhausted through the section tunnel ventilation unit 2 of the station on the exhaust side, and the direction of the longitudinal ventilation depend...

Claims

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Application Information

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IPC IPC(8): E21F1/00E21F1/14F04D27/00
CPCE21F1/003F04D27/00
Inventor 张雄唐海峰罗缘熊胜益何璇汪保利
Owner CHINA RAILWAY SIYUAN GRP SOUTHWEST SURVEY & DESIGN CO LTD
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