CN112267907A - TBM tunnel distributed natural draft air purification system - Google Patents
TBM tunnel distributed natural draft air purification system Download PDFInfo
- Publication number
- CN112267907A CN112267907A CN202011137193.7A CN202011137193A CN112267907A CN 112267907 A CN112267907 A CN 112267907A CN 202011137193 A CN202011137193 A CN 202011137193A CN 112267907 A CN112267907 A CN 112267907A
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- Prior art keywords
- chimney
- tunnel
- dust
- pipe
- dust absorption
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- 238000004887 air purification Methods 0.000 title claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 93
- 238000010521 absorption reaction Methods 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 16
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000009423 ventilation Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- 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, relates to TBM engineering technical field, including distributing type dust absorption pipe, chimney, gather the tuber pipe, the chimney pass through the vertical setting of fixing device outside the tunnel, be equipped with the dust in the chimney bottom and collect the fill, the dust is collected and is fought the bottom and be equipped with out the dirt mouth, it is connected with the dust collection box to go out the dirt mouth, distributing type dust absorption pipe comprises many dust absorption pipes, the dust absorption pipe passes through support evenly distributed on the lateral wall in tunnel to extend to tunnel in moving towards along the tunnel, 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 wire filter 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 communicate each other with the. The invention provides a TBM tunnel distributed natural ventilation air purification system which can integrally purify air in a TBM tunnel, does not consume electric energy and does not waste resources.
Description
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, can produce a large amount of dusts, because the space in tunnel is narrow, and seals relatively, the dust is difficult to discharge fast, leads to the environmental pollution in the tunnel great, endangers staff's healthy.
The existing dust removing equipment is divided into dry dust removing equipment and wet dust removing equipment, and the dry dust removing equipment and the wet dust removing equipment are also mixed for application, no matter the dry dust removing equipment or the wet dust removing equipment needs a large amount of electric appliances to participate in work, so that the energy consumption and the noise are high in the dust removing process, new noise pollution is formed, and the dust removing equipment can only remove dust aiming at a specific construction site in a tunnel and cannot purify the whole environment in the tunnel, so that the physical and mental health of constructors cannot be guaranteed, in addition, the dust removing equipment can generate a large amount of noise and consumes energy and resources (such as water and electricity), so that the use frequency of the dust removing equipment is reduced or is idle.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the distributed natural ventilation air purification system for the TBM tunnel, which can purify the air in the TBM tunnel integrally, does not consume electric energy and does not waste resources.
In order to achieve the 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 the vertical setting of fixing device outside the tunnel, be equipped with the dust in the chimney bottom and collect the fill, the dust is collected and is fought the bottom and be equipped with out the dirt mouth, go out the dirt mouth and be connected with the dust collection case, distributing type dust absorption pipe constitute by many dust absorption pipes, the dust absorption pipe pass through support evenly distributed on the lateral wall in tunnel to move towards to extending in the tunnel along the tunnel, the dust absorption pipe on be equipped with a plurality of air inlet takeovers, the outside end and the chimney of dust absorption pipe be connected, still be equipped with oblique net filtering mechanism in the chimney, gather the tuber pipe and install in the top of chimney through thrust roller bearing, and gather tuber pipe and chimney intercommunication each other, still be equipped with the direction pterygoid lamina at the.
Preferably, the dust suction pipe is of an inclined pipe structure, and the lower end of the inclined pipe structure is in threaded connection with a connector 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 filtering screen and a spring, the inclined filtering screen is arranged in the chimney section, one end of the spring is fixedly connected with the middle of the filtering screen, and the other end of the spring is fixedly connected with the surface of the inner wall of the chimney section through a spring seat.
Preferably, the inclined screen filtering mechanisms are multiple and uniformly distributed in the chimney, and the mesh number of the filter screens of the inclined screen filtering mechanisms is sequentially 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 vertical metal sheet of fixing in advance on the tunnel inner wall and along vertical evenly distributed in the branch of metal sheet surface, the bottom and the metal sheet fixed connection of branch, and the outer wall surface of branch is equipped with the external screw thread to the spiro union has stop nut, dust absorption pipe joint between stop nut and metal sheet.
The TBM tunnel distributed natural ventilation air purification system has the following beneficial effects: the invention can carry out integral dust removal and purification on the environment in the tunnel through the distributed dust collection pipe, does not consume electric energy in the whole process, does not need a water source, does not need manual care, and greatly saves resources and cost.
Drawings
FIG. 1: the invention has a structure schematic diagram;
1: dust absorption pipe, 2: a bracket, 3: air inlet connecting pipe, 4: chimney segment, 5: filter screen, 6: spring seat, 7: spring, 8: flange, 9: dust collecting hopper, 10: dust collection box, 11: dust outlet, 12: thrust roller bearing, 13: air collecting pipe, 14: guide wing plate, 15: interface, 21: metal sheet, 22: strut, 23: and a limiting nut.
Detailed Description
In the following, embodiments of the present invention are described in detail in a stepwise manner, which is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle 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 terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not to be construed as being limited thereto.
In one embodiment, the distributed natural ventilation air purification system for the TBM tunnel, as shown in figure 1, comprises a distributed dust suction pipe, a chimney and an air gathering pipe 13, wherein the chimney is vertically arranged outside the tunnel through a fixing device, a dust collecting hopper 9 is arranged at the bottom of the chimney, a dust outlet 11 is arranged at the bottom of the dust collecting hopper 9, the dust outlet 11 is connected with a dust collecting box 10, the distributed dust absorption pipe is composed of a plurality of dust absorption pipes 1, the dust absorption pipes 1 are uniformly distributed on the side wall of the tunnel through a bracket 2, and extends into the tunnel along the tunnel trend, a plurality of air inlet connecting pipes 3 are arranged on the dust suction pipe 1, the outer side end of the dust suction pipe 1 is connected with a chimney, an inclined net filtering mechanism is also arranged in the chimney, the wind gathering pipe 13 is arranged at the top of the chimney through a thrust roller bearing 12, and the wind gathering pipe 13 is communicated with the chimney, and the top of the wind gathering pipe 13 is also provided with a guide wing plate 14.
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 a connector 15 arranged on the side wall of the chimney.
In a further embodiment, as shown in fig. 1, the air inlet connecting pipe 3 is disposed at the upper portion of the dust collecting pipe 1, the air inlet connecting pipe 3 is also in an inclined pipe structure, and an opening of the air inlet connecting pipe 3 faces 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, and adjacent chimney segments 4 are 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, wherein one end of the spring 7 is fixedly connected to the middle of the screen 5, and the other end is fixedly connected to the inner wall surface of the chimney section 4 through a spring seat 6.
In a further embodiment, as shown in fig. 1, the inclined wire filtering mechanisms are provided in plurality and are uniformly distributed in the chimney, and the mesh number of the filtering nets 5 of the inclined wire filtering mechanisms is increased from bottom to top along the trend of the chimney.
In a further embodiment, as shown in figure 1, the chimney has an internal diameter greater than the sum of the internal diameters of the suction pipes 1 in the tunnel.
In a further embodiment, as shown in fig. 1, the bracket 2 includes a metal sheet 21 longitudinally pre-fixed on the inner wall of the tunnel and support rods 22 longitudinally and uniformly distributed on the outer surface of the metal sheet, the bottom end of the support rod 22 is fixedly connected with the metal sheet 2, the outer wall surface of the support rod 22 is provided with external threads and is screwed with a limit nut 23, and the dust collection pipe 1 is clamped between the limit nut 23 and the metal sheet 2.
The use principle of the invention is as follows:
1. according to the invention, through the distributed dust collection pipes and the air inlet connecting pipes 3 uniformly distributed on the upper parts of the dust collection pipes, each section in the tunnel can be subjected to dust removal purification;
2. the mechanism of dust removal and purification is as follows: because of the wind gathering effect of the narrow pipe, a rapid wind flow can be generated in the wind gathering pipe 13, so that the pressure in the wind gathering pipe is reduced, the airflow in the chimney is further driven to flow out through the wind gathering pipe 13, because the inner diameter of the chimney is larger than the sum of the inner diameters of the dust suction pipes 1 in the tunnel, the gas with dust in the tunnel can rapidly flow into the dust suction pipes 1, because the dust suction pipes 1 adopt an inclined pipe structure, the dust is favorably settled in the flowing process of the gas with dust, the settled dust slides into the dust collection hopper 9 at the bottom of the chimney under the action of the airflow and the self gravity and further slides into the dust collection box 10 from the dust outlet 11, the airflow after settlement upwards moves in the chimney, and is filtered by an inclined net filtering mechanism, the air is further purified, and the dust falls into the dust collection box 10;
3. the inclined net filtering mechanism is provided with the springs 7, the springs 7 vibrate to shake off dust on the filtering net 5 in the process of discharging gas outwards, the mesh number of the filtering nets of the inclined net filtering mechanisms is 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 dust shaken off by the upper filtering net cannot be blocked by the lower filtering net and still falls into the dust collection box 10 because the mesh number of the upper filtering net is high and the mesh number of the lower filtering net is low;
4. the chimney adopts an assembly structure, the plurality of chimney sections 4 are connected into a chimney whole 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 collection pipe 1 can use a duct piece connecting bracket commonly used in a tunnel, so that the existing structure is utilized for fixing, and the installation cost can be further saved; in addition, the dust absorption pipe is connected with the chimney in a screw connection mode, so that the assembled type tunnel dust collector integrally forms an assembled structure, and is convenient to assemble, disassemble and transport in tunnel construction;
6. the invention does not consume electric energy, does not need to utilize water source and does not need manual nursing in the dust removing process, but carries out systematic dust removing and purifying in the tunnel through natural ventilation, can bring good working environment for constructors, has low cost and convenient assembly and disassembly, and is suitable for popularization and use.
Claims (8)
1. A TBM tunnel distributed natural draft air purification system characterized in that: including distributing type dust absorption pipe, chimney, gather the tuber pipe, the chimney pass through the vertical setting of fixing device outside the tunnel, be equipped with the dust in the chimney bottom and collect the fill, the dust is collected and is fought the bottom and be equipped with out the dirt mouth, go out the dirt mouth and be connected with the dust collecting 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 in tunnel to extend to the tunnel in along the tunnel trend, the dust absorption pipe on be equipped with a plurality of air inlets and take over, the outside end and the chimney of dust absorption pipe be connected, still be equipped with inclined wire filter mechanism 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.
2. A TBM tunnel distributed natural draft air purification system as claimed in claim 1 wherein: the dust absorption pipe is an inclined pipe structure, and the lower end of the inclined pipe structure is in threaded connection with a connector arranged on the side wall of the chimney.
3. A TBM tunnel distributed natural draft air purification system as claimed in claim 2 wherein: the air inlet connecting pipe is arranged on the upper portion of the dust collection pipe and is also of an inclined pipe structure, and an opening of the air inlet connecting pipe faces towards the inner side of the tunnel.
4. A TBM tunnel distributed natural draft air purification system as claimed in any one of claims 1 to 3 wherein: the chimney is formed by assembling a plurality of chimney sections, and adjacent chimney sections are connected through flanges.
5. A TBM tunnel distributed natural draft air purification system as claimed in claim 1 wherein: the inclined screen filtering mechanism comprises an inclined filtering screen and a spring, the inclined filtering screen is arranged in the chimney section, one end of the spring is fixedly connected with the middle of the filtering screen, and the other end of the spring is fixedly connected with the surface of the inner wall of the chimney section through a spring seat.
6. A TBM tunnel distributed natural draft air purification system as claimed in claim 2 wherein: the inclined net filtering mechanisms are multiple and are uniformly distributed in the chimney, and the mesh number of the filtering nets of the inclined net filtering mechanisms is sequentially increased from bottom to top along the trend of the chimney.
7. A TBM tunnel distributed natural draft air cleaning system as claimed in any one of claims 1 to 3, 5 and 6 wherein: the inner diameter of the chimney is larger than the sum of the inner diameters of the dust suction pipes in the tunnel.
8. A TBM tunnel distributed natural draft air purification system as claimed in claim 7 wherein: the support include along vertical pre-fixing the sheetmetal on the tunnel inner wall and along vertical evenly distributed in the branch of sheetmetal surface, the bottom and the sheetmetal fixed connection of branch, and the outer wall surface of branch is equipped with the external screw thread to the spiro union has stop nut, dust absorption pipe joint between stop nut and sheetmetal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011137193.7A CN112267907A (en) | 2020-10-22 | 2020-10-22 | TBM tunnel distributed natural draft air purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011137193.7A CN112267907A (en) | 2020-10-22 | 2020-10-22 | TBM tunnel distributed natural draft air purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112267907A true CN112267907A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011137193.7A Pending CN112267907A (en) | 2020-10-22 | 2020-10-22 | TBM tunnel distributed natural draft air purification system |
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| Country | Link |
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| CN (1) | CN112267907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706380A (en) * | 2020-05-20 | 2020-09-25 | 中国路桥工程有限责任公司 | Ventilation method for long and large mountain tunnel construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004100217A (en) * | 2002-09-06 | 2004-04-02 | Kajima Corp | Telescopic air duct |
| 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 |
| 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 |
-
2020
- 2020-10-22 CN CN202011137193.7A patent/CN112267907A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004100217A (en) * | 2002-09-06 | 2004-04-02 | Kajima Corp | Telescopic air duct |
| 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 |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706380A (en) * | 2020-05-20 | 2020-09-25 | 中国路桥工程有限责任公司 | Ventilation method for long and large mountain tunnel construction |
| 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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