CN112267907B - A distributed natural ventilation air purification system for TBM tunnels - Google Patents

A distributed natural ventilation air purification system for TBM tunnels Download PDF

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Publication number
CN112267907B
CN112267907B CN202011137193.7A CN202011137193A CN112267907B CN 112267907 B CN112267907 B CN 112267907B CN 202011137193 A CN202011137193 A CN 202011137193A CN 112267907 B CN112267907 B CN 112267907B
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Prior art keywords
chimney
pipe
tunnel
dust
air
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Active
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CN202011137193.7A
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Chinese (zh)
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CN112267907A (en
Inventor
洪开荣
李志军
陈馈
黄永生
周泽民
刘俊生
张廉卿
冯飞
陈雷
刘源
寇建
李宇江
赵康林
江春明
杨志永
侯永强
谭维
路易
刘安东
吴仕超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Group Erchu Co Ltd
China Railway Group Ltd CREC
Original Assignee
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Group Erchu Co Ltd
China Railway Group Ltd CREC
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Application filed by China Railway Tunnel Group Co Ltd CRTG, China Railway Tunnel Group Erchu Co Ltd, China Railway Group Ltd CREC filed Critical China Railway Tunnel Group Co Ltd CRTG
Priority to CN202011137193.7A priority Critical patent/CN112267907B/en
Publication of CN112267907A publication Critical patent/CN112267907A/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/006—Ventilation at the working face of galleries or tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04—Air ducts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/04—Air ducts
    • E21F1/06—Duct connections
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The utility model provides a TBM tunnel distributing type natural draft air purification system, relate to TBM engineering technical field, including distributing type dust absorption pipe, chimney, air gathering pipe, the chimney pass through fixing device vertical setting outside the tunnel, be equipped with the dust collection bucket in the chimney bottom, dust collection bucket bottom is equipped with out the dirt mouth, out the dirt mouth and be connected with the dust collection box, distributing type dust absorption pipe comprises many dust absorption pipes, the dust absorption pipe passes through support evenly distributed on the lateral wall of tunnel to extend in the tunnel trend along the tunnel trend, be equipped with a plurality of air inlet takeover on the dust absorption pipe, the outside end and the chimney of dust absorption pipe are connected, still be equipped with inclined screen filter mechanism in the chimney, the air gathering pipe passes through thrust roller bearing and installs in the top of chimney, and air gathering pipe communicates each other with the chimney, still be equipped with the direction pterygoid lamina at the top of air gathering pipe. The invention provides a distributed natural ventilation air purification system for a TBM tunnel, which can integrally purify air in the TBM tunnel, does not consume electric energy and has no resource waste.

Description

TBM tunnel distributed natural ventilation air purification system
Technical Field
The invention relates to the technical field of TBM engineering, in particular to a TBM tunnel distributed natural ventilation air purification system.
Background
In the process of TBM tunnel construction, a large amount of dust can be generated, and because the space of tunnel is narrow, and is closed relatively, the dust is difficult to discharge fast, leads to the environmental pollution in the tunnel great, endangers staff's healthy.
The existing dust collecting equipment is divided into dry dust collecting equipment and wet dust collecting equipment, and the dry dust collecting equipment and the wet dust collecting equipment are mixed and applied, so that a large amount of electric appliances are needed to participate in the work, the energy consumption in the dust collecting process is high, the noise is high, new noise pollution is formed, and the dust collecting equipment can only remove dust aiming at specific construction sites in a tunnel and cannot purify the whole environment in the tunnel, so that the physical and mental health of constructors cannot be guaranteed, and in addition, a large amount of noise is generated due to dust collection, energy and resources (such as water and electricity) are consumed, so that the use frequency of the dust collecting equipment is reduced or idle.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a distributed natural ventilation air purification system for a TBM tunnel, which can integrally purify air in the TBM tunnel, does not consume electric energy and has no resource waste.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
The utility model provides a TBM tunnel distributing type natural draft air purification system, includes distributing type dust absorption pipe, chimney, gathers the tuber pipe, the chimney pass through fixing device vertical setting outside the tunnel, be equipped with the dust collection bucket in the chimney bottom, the dust collection bucket bottom is equipped with out the dirt mouth, out the dirt mouth and be connected with the dust collection box, distributing type dust absorption pipe constitute by many dust absorption pipes, the dust absorption pipe pass through support evenly distributed on the lateral wall of tunnel to extend in the tunnel along the tunnel trend, the dust absorption pipe on be equipped with a plurality of air inlet takeover, the outside end of dust absorption pipe be connected with the chimney, still be equipped with inclined net filter device in the chimney, gather the tuber pipe and pass through thrust roller bearing and install in the top of chimney, and gather tuber pipe and chimney intercommunication each other, still be equipped with the direction pterygoid lamina at the top of gathering the tuber pipe.
Preferably, the dust collection pipe is of an inclined pipe structure, and the lower end of the inclined pipe structure is in threaded connection with an interface arranged on the side wall of the chimney.
Preferably, the air inlet connecting pipe is arranged at the upper part of the dust collection pipe, and is also of an inclined pipe structure, and the opening of the air inlet connecting pipe faces the inner side of the tunnel.
Preferably, the chimney is formed by assembling a plurality of chimney sections, and adjacent chimney sections are connected through flanges.
Preferably, the inclined screen filtering mechanism comprises an inclined filter screen arranged in the chimney section and a spring, one end of the spring is fixedly connected with the middle part of the filter screen, and the other end of the spring is fixedly connected with the inner wall surface of the chimney section through a spring seat.
Preferably, the inclined screen filter mechanisms are multiple and uniformly distributed in the chimney, and the mesh number of the filter screens of the inclined screen filter mechanisms is increased from bottom to top along the trend of the chimney.
Preferably, the inner diameter of the chimney is larger than the sum of the inner diameters of the dust suction pipes in the tunnel.
Preferably, the support include along the longitudinal metal sheet of fixing in advance on the tunnel inner wall and along the longitudinal evenly distributed branch in the sheetmetal surface, the bottom and the sheetmetal fixed connection of branch, and the outer wall surface of branch be equipped with the external screw thread to the spiro union has stop nut, dust absorption pipe joint between stop nut and sheetmetal.
The distributed natural ventilation air purification system for the TBM tunnel has the advantages that the distributed dust collection pipe can be used for integrally dedusting and purifying the environment in the tunnel, electric energy is not consumed in the whole process, a water source is not needed, manual nursing is not needed, resources and cost are greatly saved, in addition, the distributed natural ventilation air purification system is of an assembled structure, is convenient to disassemble and transport, does not generate a large amount of noise during use, and is suitable for popularization and use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
1, a dust collection pipe, 2, a bracket, 3, an air inlet connecting pipe, 4, a chimney segment, 5, a filter screen, 6, a spring seat, 7, a spring, 8, a flange, 9, a dust collection bucket, 10, a dust collection box, 11, a dust outlet, 12, a thrust roller bearing, 13, a wind collection pipe, 14, a guide wing plate, 15, an interface, 21, a metal sheet, 22, a supporting rod and 23, and a limit nut.
Detailed Description
The following detailed description of the embodiments of the present invention in a stepwise manner is provided merely as a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that, the positional or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, and specific orientation configuration and operation, and thus should not be construed as limiting the present invention.
In one embodiment, a TBM tunnel distributed natural ventilation air purification system, as shown in FIG. 1, including distributed dust absorption pipe, chimney, air gathering pipe 13, the chimney pass through fixing device vertical setting outside the tunnel, be equipped with dust collection bucket 9 in the chimney bottom, dust collection bucket 9 bottom is equipped with out dirt mouth 11, out dirt mouth 11 is connected with dust collection box 10, distributed dust absorption pipe constitute by many dust absorption pipes 1, dust absorption pipe 1 pass through support 2 evenly distributed on the lateral wall of tunnel to extend along the tunnel trend in, dust absorption pipe 1 on be equipped with a plurality of air inlet takeover 3, the outside end of dust absorption pipe 1 be connected with the chimney, still be equipped with inclined screen filter mechanism in the chimney, air gathering pipe 13 install in the top of chimney through thrust roller bearing 12, and air gathering pipe 13 and chimney intercommunication each other, still be equipped with guide wing plate 14 at the top of air gathering pipe 13.
In a further embodiment, as shown in fig. 1, the dust suction pipe 1 is an inclined pipe structure, and the lower end of the inclined pipe structure is screwed with an interface 15 provided on the side wall of the chimney.
In a further embodiment, as shown in fig. 1, the air inlet connection pipe 3 is disposed at the upper portion of the dust collection pipe 1, and the air inlet connection pipe 3 is also in a slant pipe structure, and an opening of the air inlet connection pipe 3 faces to the inner side of the tunnel.
In a further embodiment, as shown in fig. 1, the chimney is assembled from a plurality of chimney segments 4, adjacent chimney segments 4 being connected by flanges 8.
In a further embodiment, as shown in fig. 1, the inclined screen filtering mechanism includes an inclined screen 5 disposed in the chimney section 4, and a spring 7, one end of the spring 7 is fixedly connected with the middle of the screen 5, and the other end of the spring 7 is fixedly connected with the inner wall surface of the chimney section 4 through a spring seat 6.
In a further embodiment, as shown in fig. 1, the number of the filter screens 5 of the inclined screen filter mechanisms is plural and uniformly distributed in the chimney, and the number of the filter screens is sequentially increased from bottom to top along the trend of the chimney.
In a further embodiment, as shown in fig. 1, the inner diameter of the chimney is larger than the sum of the inner diameters of the dust collection pipes 1 in the tunnel.
In a further embodiment, as shown in fig. 1, the bracket 2 includes a metal sheet 21 fixed on the inner wall of the tunnel in advance along the longitudinal direction, and struts 22 uniformly distributed on the outer surface of the metal sheet along the longitudinal direction, the bottom ends of the struts 22 are fixedly connected with the metal sheet 2, the outer wall surface of the struts 22 is provided with external threads, and is screwed with a limit nut 23, and the dust suction pipe 1 is clamped between the limit nut 23 and the metal sheet 2.
The application principle of the invention is as follows:
1. According to the invention, through the distributed dust collection pipe and the air inlet connecting pipes 3 uniformly distributed at the upper part of the dust collection pipe, each section in the tunnel can be subjected to dust removal and purification;
2. The dust collection and purification mechanism is that due to the effect of the narrow pipe wind collection, rapid wind flow can be generated in the wind collection pipe 13, so that the pressure in the wind collection pipe is driven to be reduced, the air flow in the chimney is driven to flow outwards through the wind collection pipe 13, the inner diameter of the chimney is larger than the sum of the inner diameters of the dust collection pipes 1 in the tunnel, so that dust-carrying air in the tunnel can rapidly flow into the dust collection pipes 1, the dust collection pipes 1 adopt an inclined pipe structure, the sedimentation of dust is facilitated in the flowing process of the dust-carrying air, the sedimented dust slides into the dust collection hopper 9 at the bottom of the chimney under the action of the air flow and the gravity of the dust collection pipes, and then slides into the dust collection box 10 from the dust outlet 11, the sedimented air flow is discharged upwards in the chimney, the air is filtered by the inclined net filtering mechanism, and the dust falls into the dust collection box 10;
3. The inclined screen filter mechanism is provided with the springs 7, the springs 7 vibrate to shake off dust on the filter screens 5 in the outward gas discharge process, the mesh numbers of the filter screens of the plurality of inclined screen filter mechanisms are gradually increased from bottom to top, the dust in the air can be filtered step by step until a good air purification effect is achieved, and the mesh number of the upper filter screen is high, and the mesh number of the lower filter screen is low, so that the dust which shakes off the upper filter screen is not blocked by the lower filter screen and still falls into the dust collecting box 10;
4. The chimney adopts an assembled structure, and the plurality of chimney sections 4 are connected into a whole chimney through the flange 8, so that the installation is convenient, the height of the chimney is convenient to set according to the environment outside the tunnel, and as for the fixing mode of the chimney, a bracket can be adopted or the chimney can be fixed on the existing building or object;
5. The bracket 2 used for fixing the dust suction pipe 1 can use a duct piece connecting frame commonly used in a tunnel, thus the invention can further save the installation cost by using the existing structure for fixing;
6. The dust removing process does not consume electric energy, does not need to use a water source, does not need to be cared manually, but performs dust removing and purifying on the system in the tunnel through natural ventilation, can bring good working environment for constructors, has low cost, is convenient to install and detach, and is suitable for popularization and use.

Claims (5)

1.一种TBM隧道分布式自然通风空气净化系统，其特征为：包括分布式吸尘管、烟囱、聚风管，所述的烟囱通过固定装置竖直设置在隧道外，在烟囱底部设有灰尘收集斗，灰尘收集斗底部设有出尘口，出尘口连接有收尘箱，所述的分布式吸尘管由多根吸尘管构成，所述的吸尘管通过支架均匀分布于隧道的侧壁上，并沿着隧道走向向隧道内延伸，所述的吸尘管上设有若干进风接管，所述的吸尘管的外侧端与烟囱连接，在烟囱内还设有斜网过滤机构，所述的聚风管通过推力滚子轴承安装于烟囱的顶部，且聚风管与烟囱相互连通，在聚风管的顶部还设有导向翼板；所述的烟囱由多根烟囱分段装配而成，相邻的烟囱分段之间通过法兰连接；所述的斜网过滤机构包括设置于烟囱分段内的倾斜的滤网，以及弹簧，所述的弹簧的一端与滤网的中部固定连接，另一端通过弹簧座与烟囱分段的内壁表面固定连接；所述的斜网过滤机构有多个，并在烟囱内均匀分布，多个斜网过滤机构的滤网的目数，沿烟囱的走向，从下到上依次增加。1. A distributed natural ventilation air purification system for a TBM tunnel, characterized in that it comprises a distributed dust suction pipe, a chimney, and an air collecting pipe, wherein the chimney is vertically arranged outside the tunnel through a fixing device, a dust collecting hopper is arranged at the bottom of the chimney, a dust outlet is arranged at the bottom of the dust collecting hopper, and a dust collecting box is connected to the dust outlet, the distributed dust suction pipe is composed of a plurality of dust suction pipes, the dust suction pipes are evenly distributed on the side wall of the tunnel through a bracket, and extend into the tunnel along the direction of the tunnel, a plurality of air inlet pipes are arranged on the dust suction pipe, the outer end of the dust suction pipe is connected to the chimney, an inclined mesh filtering mechanism is also arranged in the chimney, and the air collecting pipe is provided with a plurality of air inlet pipes, and the outer end of the dust suction pipe is connected to the chimney, an inclined mesh filtering mechanism is also arranged in the chimney, and the air collecting pipe is provided with a plurality of air inlet pipes, and the air collecting pipe is provided with a plurality of air inlet pipes, and the outer end of the dust suction pipe is connected to the chimney, and ... inlet pipe is provided with a plurality of air inlet pipes, and the air in The pipe is installed on the top of the chimney through a thrust roller bearing, and the air collecting pipe and the chimney are connected to each other, and a guide wing plate is also provided on the top of the air collecting pipe; the chimney is assembled from a plurality of chimney sections, and adjacent chimney sections are connected by flanges; the inclined mesh filtering mechanism includes an inclined filter screen arranged in the chimney section, and a spring, one end of the spring is fixedly connected to the middle of the filter screen, and the other end is fixedly connected to the inner wall surface of the chimney section through a spring seat; there are multiple inclined mesh filtering mechanisms, which are evenly distributed in the chimney, and the mesh sizes of the filter screens of the multiple inclined mesh filtering mechanisms increase from bottom to top along the direction of the chimney. 2.如权利要求1所述的一种TBM隧道分布式自然通风空气净化系统，其特征为：所述的吸尘管为倾斜的斜管结构，且斜管结构的低端与设于烟囱侧壁上的接口螺接。2. A TBM tunnel distributed natural ventilation air purification system as described in claim 1, characterized in that: the dust suction pipe is an inclined inclined pipe structure, and the lower end of the inclined pipe structure is screwed to the interface arranged on the side wall of the chimney. 3.如权利要求2所述的一种TBM隧道分布式自然通风空气净化系统，其特征为：所述的进风接管设于吸尘管的上部，且进风接管也为斜管结构，所述进风接管的开口朝向隧道内侧。3. A TBM tunnel distributed natural ventilation air purification system as described in claim 2, characterized in that: the air inlet pipe is arranged at the upper part of the dust suction pipe, and the air inlet pipe is also an inclined pipe structure, and the opening of the air inlet pipe faces the inside of the tunnel. 4.如权利要求3所述的一种TBM隧道分布式自然通风空气净化系统，其特征为：所述的烟囱的内径大于隧道内的吸尘管的内径之和。4. A TBM tunnel distributed natural ventilation air purification system as described in claim 3, characterized in that the inner diameter of the chimney is larger than the sum of the inner diameters of the dust suction pipes in the tunnel. 5.如权利要求4所述的一种TBM隧道分布式自然通风空气净化系统，其特征为：所述的支架包括沿纵向预先固定在隧道内壁上的金属片、以及沿纵向均匀分布于金属片外表面的支杆，所述的支杆的底端与金属片固定连接，且支杆的外壁表面设有外螺纹，并螺接有限位螺母，所述的吸尘管卡接在限位螺母与金属片之间。5. A distributed natural ventilation air purification system for a TBM tunnel as described in claim 4, characterized in that: the bracket includes a metal sheet pre-fixed on the inner wall of the tunnel along the longitudinal direction, and support rods evenly distributed on the outer surface of the metal sheet along the longitudinal direction, the bottom end of the support rod is fixedly connected to the metal sheet, and the outer wall surface of the support rod is provided with an external thread and is screwed with a limiting nut, and the dust suction pipe is clamped between the limiting nut and the metal sheet.
CN202011137193.7A 2020-10-22 2020-10-22 A distributed natural ventilation air purification system for TBM tunnels Active CN112267907B (en)

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CN111706380B (en) * 2020-05-20 2021-11-09 中国路桥工程有限责任公司 Ventilation method for long and large mountain tunnel construction

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Publication number Priority date Publication date Assignee Title
CN107355249A (en) * 2017-09-07 2017-11-17 耿业津 The natural ventilation system and method for traffic tunnel, subway or underground construction tunnel
CN214196372U (en) * 2020-10-22 2021-09-14 中铁隧道集团二处有限公司 TBM tunnel distributed natural draft air purification system

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Publication number Priority date Publication date Assignee Title
JP3990615B2 (en) * 2002-09-06 2007-10-17 鹿島建設株式会社 Telescopic wind pipe
CN206503614U (en) * 2017-02-17 2017-09-19 长安大学 A kind of tunnel shaft ventilation unit based on heat power self-circulation system

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Publication number Priority date Publication date Assignee Title
CN107355249A (en) * 2017-09-07 2017-11-17 耿业津 The natural ventilation system and method for traffic tunnel, subway or underground construction tunnel
CN214196372U (en) * 2020-10-22 2021-09-14 中铁隧道集团二处有限公司 TBM tunnel distributed natural draft air purification system

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