WO2013086850A1 - Downward air extraction system and method for tunnel air - Google Patents

Downward air extraction system and method for tunnel air Download PDF

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Publication number
WO2013086850A1
WO2013086850A1 PCT/CN2012/077811 CN2012077811W WO2013086850A1 WO 2013086850 A1 WO2013086850 A1 WO 2013086850A1 CN 2012077811 W CN2012077811 W CN 2012077811W WO 2013086850 A1 WO2013086850 A1 WO 2013086850A1
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WO
WIPO (PCT)
Prior art keywords
air
tunnel
exhaust
fresh air
wind
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Application number
PCT/CN2012/077811
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French (fr)
Chinese (zh)
Inventor
臧筑华
张鸿瑞
魏德立
孙泽山
刘军
刘小强
尚奎杰
屠雪临
张洪生
杨永安
张津奕
臧今楠
刘运启
杨奎
李文锋
Original Assignee
天津建院建筑设计有限公司
天津得圣太阳能科技有限公司
天津市建筑设计院
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Publication of WO2013086850A1 publication Critical patent/WO2013086850A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the invention relates to a tunnel air exhausting system and method, in particular, a duct and an air outlet are arranged in a lower part of a tunnel, a new air duct and a fresh air outlet are arranged in an upper part of the tunnel, and a wind turbine is installed in the air outlet, outside the tunnel
  • a synchronous air exchange device is set up, which utilizes the wind pressure of the motor vehicle in the tunnel and the wind energy outside the tunnel to absorb the exhaust of the motor vehicle from the lower part of the tunnel, and the fresh air is sent to the upper part, and the short tunnel can realize the no-power noise, and the pollutant gas is discharged after being treated.
  • New systems and new technologies can be widely used in tunnel ventilation, and belong to the fields of construction engineering and ventilation purification.
  • the current ventilation and ventilation are all using electric energy, the upper agitating and exhausting method, high energy consumption, high noise, and the human body is diluted by polluting gas.
  • the environment For example: The Qinling Zhongnanshan Highway Tunnel uses the world's largest diameter and highest depth shaft ventilation project. The three ventilation shafts have a maximum depth of 661 meters and a maximum shaft diameter of 11.5 meters.
  • the system and method for exhausting air under the tunnel air of the invention adopts the method of sending up and down, using the wind pressure of the motor vehicle to directly inhale the dangerous exhaust gas from the lower part and filtering the air to reduce air pollution; using the wind energy to send fresh air in the upper part Improve the internal environment of the tunnel; turn off the air supply in the event of fire, increase the exhaust air, and achieve rapid anaerobic fire extinguishing; short tunnel can be realistic and no power noise
  • a tunnel air exhausting system and method an exhaust duct and an exhaust vent are arranged at a lower part of the tunnel, and a new air duct and a fresh air vent are arranged at an upper part; a wind turbine is arranged at an air vent in the tunnel, and the wind pressure is directly absorbed by the motor vehicle. Filter motor vehicle exhaust; use wind energy to input fresh air and exhaust air simultaneously.
  • the invention has the following features:
  • the tuyere greets the direction of travel of the motor vehicle, and the axial flow fan impeller and the centrifugal fan impeller are installed at the exhaust end.
  • the axial flow fan impeller is outside the air duct opening, and the centrifugal fan impeller is inside the air duct opening.
  • FIG. 1 is a schematic diagram of the tunnel air exhaust system
  • Figure 2 is a schematic diagram of the arrangement and structure of the two types of wind turbine impellers at the exhaust end.
  • Tunnel 1 fresh air connection pipe 2, fresh air outlet 3 in the tunnel, air exhaust device 4, air treatment base cleaning door 5, air treatment base 6, wind treatment base connection 7, exhaust air power unit 8, exhaust fire prevention Valve 9, Exhaust pipe fire damper 10, Exhaust shaft 11, Exhaust vent 12, Exhaust wind wheel 13, Fresh air vent 14, New wind wheel 15, Fresh wind wheel support 16, Wind wheel 17, Fresh air shaft 18 , Xinfeng fire damper 19, fresh air duct fire damper 20, fresh air power unit 21.
  • the shaft effect the bottom-up airflow in the exhaust duct drives the exhaust wind wheel 13 to rotate, the air outlet 12 inside the tunnel is in a negative pressure state, the motor vehicle travels, and the exhaust gas is sucked into the air exhaust port;
  • Section 7 divides the shaft into two independent airflow passages.
  • the fresh air wind turbine is driven by the exhaust wind turbine 13 and the wind turbine 17 to input fresh air to the tunnel synchronously with the exhaust air, and the fresh air outlet 3 in the tunnel is in a positive pressure state.
  • the upper part of the top of the machine forms a flow of air to the rear of the vehicle, accelerating the fresh air to the tunnel.
  • the airflow of the exhaust main pipe 22 drives the centrifugal wind turbine 23 and the axial flow wind turbine 26 to internally input the lower gas of the tunnel, the air pressure of the motor vehicle, and increase the conveying speed.
  • the exhaust duct is arranged in the lower part of the non-motor vehicle road or in the lower wall wall; two types of wind turbine impellers are arranged at the air outlet, and the two types of wind turbines are in the negative pressure state.
  • the impeller quickly inhales the exhaust gas under the action of the wind pressure generated by the motor vehicle, and is treated by a universal filtering device to effectively reduce the content of harmful substances in the exhaust gas discharged from the exhaust air.
  • the upper fresh air duct is disposed above the top height of the motor vehicle, and the air supply port is The positive pressure state, the motor vehicle travels, the air generated at the top causes the fresh air to be quickly discharged, the ventilation mode of the upper and lower rows, the airflow perceived by the personnel has no pollutants, and the oxygen content of the motor vehicle is increased, and the engine improves the performance and reduces the exhaust gas. Substance emissions.
  • the partition shaft is provided with a partition shaft outside the tunnel, and a wind turbine is used to synchronously drive two impellers.
  • the axial flow impeller drives the exhaust, and the air outlets in the tunnel are in a negative pressure state.
  • the centrifugal impeller drives the fresh air, and the new air outlets in the tunnel are in a positive pressure state.
  • the ventilation system is respectively equipped with fire-proof valves, and the air duct system is installed according to the general ventilation air duct installation method.
  • the lower part is equipped with a large-volume base to install a universal muffler and dust removal device to improve the fresh air cleanliness level and reduce harmful substances in the exhaust air.
  • the exhaust gas is directly sucked into the exhaust end, and the universal filtering device reduces harmful emissions.
  • the fresh air is filtered and sent to the human sensing area, and is also the inhalation area of the motor vehicle, increasing the oxygen content of the air, further reducing the generation of harmful substances and improving the comfort of the human body. parameter.
  • the air duct is sealed.
  • the conditional place is equipped with a static pressure tank and a fresh air booster according to the length of 500m.
  • the booster is driven by a fan, and the exhaust port filter is replaced by a cleaning method, which is periodically replaced and reused.
  • Fresh air connection pipe 2, fresh air outlet in the tunnel 3, air exhaust device 4 uses a common ventilation air duct processing and installation method.
  • Wind treatment pedestal cleaning door 5 air treatment pedestal 6, wind treatment pedestal connection 7 civil construction, permanent construction, according to tunnel parameters, traffic flow parameters, proportional design size, universal use in wind handling pedestal connection 7
  • the method of setting up and down connecting and isolating the shaft splitting device ensures that the two shaft airflows are independent and the shaft is stable.
  • Wind treatment pedestal cleaning door 5 As a regular cleaning of discharge sediments or placement of air treatment purification system channels, set up fresh air and exhaust two cleaning doors.
  • Exhaust power device 8 exhaust fire damper 9, exhaust pipe fire damper 10, exhaust shaft 11, exhaust vent 12, exhaust wind wheel 13, when there is a dangerous substance leak in the tunnel, open the exhaust power device 8,
  • the exhaust fire damper 9 and the exhaust duct fire damper 10 are interlocked, 10 is closed when opening 9 and 9 is closed when 10 is opened.
  • the device 21, the fresh air fire damper 19 and the fresh air duct fire damper 20 are interlocked, and when the opening 19 is turned off, 20 is turned off, and when the opening 20 is turned off, 19 is turned off.
  • the exhaust main pipe 22 is processed and installed according to the general ventilation method, and the variable diameter treatment is performed.
  • the universal centrifugal wind wheel 23 is installed inside the air inlet by a universal centrifuge bracket 24, and the filter cover 25 is installed outside the air inlet;
  • the axial flow type wind wheel 26 is installed at the air inlet, the filter cover 27 is installed at the outermost side, and the fire damper 28 can be installed in the main pipe or the branch pipe.
  • the universal fan impeller and frame are selected to eliminate the motor installation and directly applied to the exhaust side and the fresh air end. Air conditioning ventilation is adopted, the axial flow fan filter device is on the impeller air supply side, and the centrifugal fan filter device is on the impeller suction side.
  • Electric drive fans are connected in parallel.
  • an electrically driven fan is installed at intervals to serve as a fresh air and exhaust air booster.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Road Paving Machines (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

Disclosed is a downward air extraction system for tunnel air, wherein an air extraction duct and air vent (4) are provided at the lower part of the tunnel, and a fresh air duct (2) and fresh air opening (3) are provided at the top part of the tunnel. A wind turbine (13) is installed at an air vent (12), and a synchronized air exchange apparatus is provided outside the tunnel. Using the air pressure of motor vehicles travelling inside the tunnel and wind energy outside the tunnel, exhaust gases from the motor vehicles are sucked out from the lower part of the tunnel and clean, fresh air is delivered into the top part. Disclosed is a downward air extraction method for tunnel air. Using the air pressure of motor vehicles travelling inside the tunnel and wind energy outside the tunnel, exhaust gases from the motor vehicles are sucked out from the lower part of the tunnel and clean, fresh air is delivered into the top part. Zero power noise can be achieved in short tunnels, and polluting gases are vented after being processed.

Description

隧道空气下排风系统及方法 技术领域  Tunnel air exhaust system and method
本发明涉及一种隧道空气下排风系统及方法， 具体地说， 是一种隧道下部设置排风道和排风 口， 隧道上部设置新风道和新风口， 排风口安装风轮机， 隧道外设置同步空气交换装置， 利 用隧道内机动车行驶的风压和隧道外风能， 从隧道下部吸收机动车排气， 上部送入清新的空 气， 短隧道可实现无动力噪音， 污染气体处理后排放的新系统和新技术， 可以广泛普及应用 在隧道通风中， 属于建筑工程和通风净化领域。 The invention relates to a tunnel air exhausting system and method, in particular, a duct and an air outlet are arranged in a lower part of a tunnel, a new air duct and a fresh air outlet are arranged in an upper part of the tunnel, and a wind turbine is installed in the air outlet, outside the tunnel A synchronous air exchange device is set up, which utilizes the wind pressure of the motor vehicle in the tunnel and the wind energy outside the tunnel to absorb the exhaust of the motor vehicle from the lower part of the tunnel, and the fresh air is sent to the upper part, and the short tunnel can realize the no-power noise, and the pollutant gas is discharged after being treated. New systems and new technologies can be widely used in tunnel ventilation, and belong to the fields of construction engineering and ventilation purification.
背景技术 Background technique
机动车通过隧道时要排放大量有害气体和烟尘， 电力火车， 机车受电弓与接触网接触时会脱 离放电， 从而在隧道内也产生一定量的氮氧化合物有害气体， 对行车密度大的长隧道， 为保 证隧道内作业工人的正常劳动卫生条件和机动车上人的安全与舒适， 一般要装置机械通风设 备， 将隧道内污浊空气排出洞外， 向隧道内输入新鲜空气以满足旅客的生理需要， 使通风后 的隧道内有害气体浓度降低到卫生标准的允许值以下； 目前的通风换气都是采用消耗电能， 上部搅动排风方式， 高耗能， 高噪音， 人体处在污染气体稀释的环境下。 例如： 秦岭终南山 公路隧道采用了世界口径最大、 深度最高的竖井通风工程。 这三个通风竖井最大井深 661 米， 最大竖井直径达 11.5 米， 竖井下方均设大型地下风机厂房， 被形象地形容为地球上最 大的 "烟囱"， 增加了巨额的建造费用； 国际上法国至意大利间的勃朗峰、 瑞士的圣哥达、 奥地利的阿尔贝格、 挪威的莱尔多等世界知名公路隧道， 大都是单洞双向行驶， 从洞两边给 风， 半横向或全横向通风， 这样， 如发生火灾则无法有效地控制风向和阻断火源传播。 When a motorized vehicle passes through a tunnel, a large amount of harmful gas and smoke are discharged. When the electric train and the locomotive are connected to the contact net, the discharge will be disengaged, and a certain amount of harmful oxygen gas of nitrogen oxides is also generated in the tunnel, which is long in driving density. In order to ensure the normal working and sanitary conditions of the workers in the tunnel and the safety and comfort of the motorists, mechanical ventilation equipment is generally required to discharge the dirty air inside the tunnel and to input fresh air into the tunnel to satisfy the passenger's physiology. It is required to reduce the concentration of harmful gases in the tunnel after ventilation to below the allowable value of sanitary standards; the current ventilation and ventilation are all using electric energy, the upper agitating and exhausting method, high energy consumption, high noise, and the human body is diluted by polluting gas. The environment. For example: The Qinling Zhongnanshan Highway Tunnel uses the world's largest diameter and highest depth shaft ventilation project. The three ventilation shafts have a maximum depth of 661 meters and a maximum shaft diameter of 11.5 meters. There are large underground wind turbines under the shafts, which are imaged as the largest "chimney" on the earth, adding huge construction costs; World-renowned road tunnels such as Mont Blanc in Italy, Gotthard in Switzerland, Arlberg in Austria, and Lerdo in Norway are mostly single-way two-way driving, with air supply from both sides of the hole, semi-horizontal or full horizontal ventilation. Thus, in the event of a fire, the wind direction cannot be effectively controlled and the fire source is blocked.
本发明隧道空气下排风系统及方法， 采用上送下排方式， 利用机动车行驶的风压从下部直接 吸入危害的排气并过滤处理， 降低大气污染； 利用风力风能在上部送入新鲜空气， 改善隧道 内部环境； 发生火灾关闭送风， 加大排风， 可实现快速绝氧灭火； 短隧道可现实无动力噪 音 The system and method for exhausting air under the tunnel air of the invention adopts the method of sending up and down, using the wind pressure of the motor vehicle to directly inhale the dangerous exhaust gas from the lower part and filtering the air to reduce air pollution; using the wind energy to send fresh air in the upper part Improve the internal environment of the tunnel; turn off the air supply in the event of fire, increase the exhaust air, and achieve rapid anaerobic fire extinguishing; short tunnel can be realistic and no power noise
发明内容 Summary of the invention
一种隧道空气下排风系统及方法,在隧道下部设置排风道和排风口， 上部设置新风道和新风 口； 隧道内排风口设置风轮机， 利用机动车行驶的风压直接吸收并过滤机动车尾气； 利用风 能同步输入新风和排风。 A tunnel air exhausting system and method, an exhaust duct and an exhaust vent are arranged at a lower part of the tunnel, and a new air duct and a fresh air vent are arranged at an upper part; a wind turbine is arranged at an air vent in the tunnel, and the wind pressure is directly absorbed by the motor vehicle. Filter motor vehicle exhaust; use wind energy to input fresh air and exhaust air simultaneously.
本发明具有以下特征： The invention has the following features:
1.隧道内， 风口迎向机动车行驶方向， 排风端间隔安装轴流式风机叶轮和离心式风机叶轮， 轴流式风机叶轮在风道口外部， 离心式风机叶轮在风道口内部。 1. In the tunnel, the tuyere greets the direction of travel of the motor vehicle, and the axial flow fan impeller and the centrifugal fan impeller are installed at the exhaust end. The axial flow fan impeller is outside the air duct opening, and the centrifugal fan impeller is inside the air duct opening.
2.隧道外， 设置隔断式竖井， 风轮机同步驱动排风叶轮和送风叶轮。 2. Outside the tunnel, a partitioned shaft is installed, and the wind turbine synchronously drives the exhaust impeller and the air supply impeller.
附图说明 DRAWINGS
图 1是隧道空气下排风系统示意图 Figure 1 is a schematic diagram of the tunnel air exhaust system
图 2是排风端两种形式风轮机叶轮间隔设置及结构示意图 Figure 2 is a schematic diagram of the arrangement and structure of the two types of wind turbine impellers at the exhaust end.
图 1说明如下： Figure 1 illustrates the following:
隧道 1， 新风连接管 2， 隧道内新风口 3,排风装置 4， 风处理基座清理门 5， 风处理基座 6， 风处理基座连接件 7， 排风动力装置 8， 排风防火阀 9， 排风管道防火阀 10， 排风竖井 11， 排风口 12， 排风风轮 13， 新风口 14， 新风风轮 15， 新风风轮支撑架 16， 风力风轮 17， 新 风竖井 18， 新风防火阀 19， 新风管道防火阀 20， 新风动力装置 21。 Tunnel 1, fresh air connection pipe 2, fresh air outlet 3 in the tunnel, air exhaust device 4, air treatment base cleaning door 5, air treatment base 6, wind treatment base connection 7, exhaust air power unit 8, exhaust fire prevention Valve 9, Exhaust pipe fire damper 10, Exhaust shaft 11, Exhaust vent 12, Exhaust wind wheel 13, Fresh air vent 14, New wind wheel 15, Fresh wind wheel support 16, Wind wheel 17, Fresh air shaft 18 , Xinfeng fire damper 19, fresh air duct fire damper 20, fresh air power unit 21.
隧道外， 竖井效应， 排风道内自下而上的气流驱动排风风轮 13转动， 隧道内部的排风口 12 为负压状态， 机动车行驶， 尾气吸入排风口； 风处理基座连接件 7把竖井分割为两个独立的 气流通道， 新风风轮在排风风轮 13和风力风轮 17驱动下， 与排风同步向隧道输入新风， 隧 道内新风口 3呈正压状态， 机动车行驶过程， 机顶上部形成向机动车后部流动的气流， 加速 新风向隧道输送。 Outside the tunnel, the shaft effect, the bottom-up airflow in the exhaust duct drives the exhaust wind wheel 13 to rotate, the air outlet 12 inside the tunnel is in a negative pressure state, the motor vehicle travels, and the exhaust gas is sucked into the air exhaust port; Section 7 divides the shaft into two independent airflow passages. The fresh air wind turbine is driven by the exhaust wind turbine 13 and the wind turbine 17 to input fresh air to the tunnel synchronously with the exhaust air, and the fresh air outlet 3 in the tunnel is in a positive pressure state. During the driving process, the upper part of the top of the machine forms a flow of air to the rear of the vehicle, accelerating the fresh air to the tunnel.
图 2说明如下： Figure 2 illustrates the following:
排风主干管 22， 离心式风轮 23， 离心机支架 24,过滤罩 25， 轴流式风轮 26， 过滤罩 27， 防 火阀 28， 排风连接管道 29， 隧道墙体 30。 Exhaust main pipe 22, centrifugal wind wheel 23, centrifuge bracket 24, filter cover 25, axial flow wheel 26, filter cover 27, fire protection valve 28, exhaust connection pipe 29, tunnel wall 30.
排风主干管 22的气流， 驱动离心式风轮 23和轴流式风轮 26向内部输入隧道下部气体， 机 动车行驶的气压， 增加输送速度。 The airflow of the exhaust main pipe 22 drives the centrifugal wind turbine 23 and the axial flow wind turbine 26 to internally input the lower gas of the tunnel, the air pressure of the motor vehicle, and increase the conveying speed.
具体实施方式 detailed description
内部通风原理： Internal ventilation principle:
隧道内， 排风道在非机动车道路下部设置或在下部墙壁壁挂式设置； 在排风口间隔设置两种 形式的风轮机叶轮， 由于排风口为负压状态， 两种形式的风轮机叶轮在机动车行驶产生的风 压作用下快速吸入尾气， 经通用的过滤装置处理， 有效降低排放的尾气中有害物质的含量， 上部新风风道， 设置在机动车顶部高度以上位置， 送风口为正压状态， 机动车行驶， 顶部产 生气流造成新风快速排出， 上送下排的通风方式， 人员感知的气流没有污染物， 增加了机动 车吸气的氧含量， 同时发动机提高性能， 降低尾气有害物质排放。 In the tunnel, the exhaust duct is arranged in the lower part of the non-motor vehicle road or in the lower wall wall; two types of wind turbine impellers are arranged at the air outlet, and the two types of wind turbines are in the negative pressure state. The impeller quickly inhales the exhaust gas under the action of the wind pressure generated by the motor vehicle, and is treated by a universal filtering device to effectively reduce the content of harmful substances in the exhaust gas discharged from the exhaust air. The upper fresh air duct is disposed above the top height of the motor vehicle, and the air supply port is The positive pressure state, the motor vehicle travels, the air generated at the top causes the fresh air to be quickly discharged, the ventilation mode of the upper and lower rows, the airflow perceived by the personnel has no pollutants, and the oxygen content of the motor vehicle is increased, and the engine improves the performance and reduces the exhaust gas. Substance emissions.
外部通风¾¾换气原理： External ventilation 3⁄43⁄4 ventilation principle:
隔断式竖井在隧道外部设置隔断式竖井， 采用一个风轮机， 同步驱动两个叶轮， 风轮机转 动， 带动轴流式叶轮驱动排风， 隧道内的各个排风口呈负压状态， 离心式叶轮驱动新风， 隧 道内的各个新风口呈正压状态。 The partition shaft is provided with a partition shaft outside the tunnel, and a wind turbine is used to synchronously drive two impellers. The axial flow impeller drives the exhaust, and the air outlets in the tunnel are in a negative pressure state. The centrifugal impeller drives the fresh air, and the new air outlets in the tunnel are in a positive pressure state.
在竖井上设置两套电力驱动的新风和排风机， 遇到事故， 需要强行驱动新风或排风可独立控 制； 通风系统分别设置防火阀门， 按照通用的通风风道安装方式安装风道系统， 竖井下部设 置大容积底座安装通用的消音、 除尘装置， 提高新风洁净等级， 降低排风有害物质。 Two sets of electric-driven fresh air and exhaust fans are installed on the shaft. In case of accidents, it is necessary to forcibly drive fresh air or exhaust air to be independently controlled. The ventilation system is respectively equipped with fire-proof valves, and the air duct system is installed according to the general ventilation air duct installation method. The lower part is equipped with a large-volume base to install a universal muffler and dust removal device to improve the fresh air cleanliness level and reduce harmful substances in the exhaust air.
净化原理： Purification principle:
尾气直接吸入排风端， 通用的过滤装置降低有害物排放； 新风经过滤送到人体感知区域， 同 时也是机动车吸气区域， 增加空气含氧量， 进一步降低有害物质的产生， 提高人体舒适度参 数。 The exhaust gas is directly sucked into the exhaust end, and the universal filtering device reduces harmful emissions. The fresh air is filtered and sent to the human sensing area, and is also the inhalation area of the motor vehicle, increasing the oxygen content of the air, further reducing the generation of harmful substances and improving the comfort of the human body. parameter.
安装原则： Installation principle:
隧道内部， 风道密闭， 有条件的场所按照间隔 500m长度设置静压箱和新风增压装置， 增压 装置采用风机驱动， 排风端口过滤装置采用更换清洗方式， 定期更换， 重复利用。 Inside the tunnel, the air duct is sealed. The conditional place is equipped with a static pressure tank and a fresh air booster according to the length of 500m. The booster is driven by a fan, and the exhaust port filter is replaced by a cleaning method, which is periodically replaced and reused.
部件加工方法： Component processing method:
新风连接管 2， 隧道内新风口 3,排风装置 4采用通用的通风风道加工和安装方法。 Fresh air connection pipe 2, fresh air outlet in the tunnel 3, air exhaust device 4 uses a common ventilation air duct processing and installation method.
风处理基座清理门 5， 风处理基座 6， 风处理基座连接件 7土建施工， 永久性建筑， 根据隧 道参数， 车流量参数， 正比例设计大小， 在风处理基座连接件 7采用通用的方法设置上下连 接和隔离竖井分割的装置， 保证两个竖井气流各自独立， 竖井稳定。 Wind treatment pedestal cleaning door 5, air treatment pedestal 6, wind treatment pedestal connection 7 civil construction, permanent construction, according to tunnel parameters, traffic flow parameters, proportional design size, universal use in wind handling pedestal connection 7 The method of setting up and down connecting and isolating the shaft splitting device ensures that the two shaft airflows are independent and the shaft is stable.
风处理基座清理门 5作为定期清理排出沉积物或安置空气处理净化系统通道， 设置新风和排 风两个清理门。 Wind treatment pedestal cleaning door 5 As a regular cleaning of discharge sediments or placement of air treatment purification system channels, set up fresh air and exhaust two cleaning doors.
排风动力装置 8， 排风防火阀 9， 排风管道防火阀 10， 排风竖井 11， 排风口 12， 排风风轮 13， 当隧道内出现危险物泄漏， 开启排风动力装置 8， 排风防火阀 9 和排风管道防火阀 10 互锁， 开启 9时关闭 10， 开启 10时关闭 9。 Exhaust power device 8, exhaust fire damper 9, exhaust pipe fire damper 10, exhaust shaft 11, exhaust vent 12, exhaust wind wheel 13, when there is a dangerous substance leak in the tunnel, open the exhaust power device 8, The exhaust fire damper 9 and the exhaust duct fire damper 10 are interlocked, 10 is closed when opening 9 and 9 is closed when 10 is opened.
新风口 14， 新风风轮 15， 新风风轮支撑架 16， 风力风轮 17， 新风竖井 18， 新风防火阀 19， 新风管道防火阀 20， 新风动力装置 21， 当隧道内出现堵车， 开启新风动力装置 21， 新 风防火阀 19和新风管道防火阀 20互锁， 开启 19时关闭 20， 开启 20时关闭 19。 New air outlet 14, fresh air wheel 15, fresh air wheel support 16, wind wheel 17, fresh air shaft 18, fresh air fire valve 19, fresh air fire damper 20, fresh air power unit 21, when there is traffic jam in the tunnel, open fresh air power The device 21, the fresh air fire damper 19 and the fresh air duct fire damper 20 are interlocked, and when the opening 19 is turned off, 20 is turned off, and when the opening 20 is turned off, 19 is turned off.
发生火灾， 关闭新风， 开启排风。 A fire occurs, the fresh air is turned off, and the exhaust is turned on.
排风主干管 22按照通用的通风方式加工和安装， 做变径处理， 通用的离心式风轮 23采用通 用的离心机支架 24 安装在引风口内部， 过滤罩 25 安装在引风口外侧； 通用的轴流式风轮 26安装在引风口， 过滤罩 27安装在最外侧， 防火阀 28可以安装在主干管也可安装在枝干 管。 选用通用的风机叶轮和框架， 免除电动机安装， 直接应用在排风端和新风端。 采用空调通风 方式， 轴流式风机过滤装置在叶轮送风侧， 离心式风机过滤装置在叶轮吸风侧。 The exhaust main pipe 22 is processed and installed according to the general ventilation method, and the variable diameter treatment is performed. The universal centrifugal wind wheel 23 is installed inside the air inlet by a universal centrifuge bracket 24, and the filter cover 25 is installed outside the air inlet; The axial flow type wind wheel 26 is installed at the air inlet, the filter cover 27 is installed at the outermost side, and the fire damper 28 can be installed in the main pipe or the branch pipe. The universal fan impeller and frame are selected to eliminate the motor installation and directly applied to the exhaust side and the fresh air end. Air conditioning ventilation is adopted, the axial flow fan filter device is on the impeller air supply side, and the centrifugal fan filter device is on the impeller suction side.
间隔式竖井， 隔断密闭， 同轴两种叶轮之间密闭。 Spaced shaft, sealed and sealed, coaxial between the two impellers.
电力驱动的风机并联接入。 Electric drive fans are connected in parallel.
长隧道内， 间隔设置电力驱动的风机， 作为新风和排风增压装置。 In the long tunnel, an electrically driven fan is installed at intervals to serve as a fresh air and exhaust air booster.

Claims

WO 2013/086850 权 禾 j 要 求 书 PCT/CN2012/077811 WO 2013/086850 权禾j Request for PCT/CN2012/077811
1. 一种隧道空气下排风系统及方法,其特征是： 在隧道下部设置排风道和排风口， 上部设置 新风道和新风口； 隧道内排风口设置风轮机， 利用机动车行驶的风压直接吸收并过滤机动车 尾气； 利用风能同步输入新风和排风。 A tunnel air exhausting system and method, characterized in that: an exhaust duct and an air outlet are arranged in a lower part of the tunnel, and a new air duct and a fresh air outlet are arranged in the upper part; a wind turbine is arranged in the air outlet of the tunnel, and the motor vehicle is driven The wind pressure directly absorbs and filters the exhaust of the motor vehicle; the wind energy is used to simultaneously input the fresh air and the exhaust air.
2. 根据权利要求 1 所述的隧道空气下排风系统及方法， 其特征是： 隧道内， 风口迎向机动 车行驶方向， 排风端间隔安装轴流式风机叶轮和离心式风机叶轮， 轴流式风机叶轮在风道口 外部， 离心式风机叶轮在风道口内部。  2 . The tunnel air lower air exhaust system and method according to claim 1 , wherein: in the tunnel, the tuyere faces the driving direction of the motor vehicle, and the exhaust fan end is installed with the axial flow fan impeller and the centrifugal fan impeller, the shaft. The flow fan impeller is outside the air duct opening, and the centrifugal fan impeller is inside the air duct opening.
3. 根据权利要求 1 所述的隧道空气下排风系统及方法， 其特征是： 隧道外， 设置隔断式竖 井， 风轮机同步驱动排风叶轮和送风叶轮。  3. The tunnel air lower air exhaust system and method according to claim 1, wherein: outside the tunnel, a partition type vertical shaft is disposed, and the wind turbine synchronously drives the exhaust air impeller and the air supply impeller.
PCT/CN2012/077811 2011-12-15 2012-06-29 Downward air extraction system and method for tunnel air WO2013086850A1 (en)

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