CN213928416U - Ventilation and dust removal system for tunnel construction - Google Patents

Ventilation and dust removal system for tunnel construction Download PDF

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Publication number
CN213928416U
CN213928416U CN202022913340.7U CN202022913340U CN213928416U CN 213928416 U CN213928416 U CN 213928416U CN 202022913340 U CN202022913340 U CN 202022913340U CN 213928416 U CN213928416 U CN 213928416U
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China
Prior art keywords
air
tunnel
ventilation
negative pressure
dust removal
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CN202022913340.7U
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Chinese (zh)
Inventor
桂学
王延明
王勋
郭军强
牛俊乔
唐成兵
张东省
刘治伸
李群德
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Shaanxi Zhong Lin Group Engineering Design Research Co ltd
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Shaanxi Zhong Lin Group Engineering Design Research Co ltd
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Abstract

The utility model discloses a ventilation dust pelletizing system of tunnel construction. The method comprises the following steps: the air collecting device, the air conveying pipeline, the negative pressure air draft device and the bracket; the air collecting device is arranged inside the tunnel; one end of the air delivery pipeline is communicated with the air collecting device, and the other end of the air delivery pipeline is connected with the negative pressure air extracting device; the negative pressure air draft device is arranged at the tunnel outlet; the bracket uniformly supports all parts of the air delivery pipeline. The utility model uses the negative pressure air draft device without power drive to pump and exhaust the gas with dust in the built tunnel; the effects of energy conservation, emission reduction and environmental protection can be effectively achieved.

Description

Ventilation and dust removal system for tunnel construction
Technical Field
The utility model belongs to the technical field of building tunnel ventilation dust removal, more specifically relates to tunnel construction's ventilation dust pelletizing system.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
With the progress of traffic infrastructure construction work, many road projects are currently constructed in valley areas, and tunnels are widely used as an excellent mountain-crossing structure. Through development for many years, the existing tunnel construction method tends to be mature, but more problems still occur in the construction process. The tunnel construction is carried out by adopting a blasting excavation mode, and due to the poor ventilation effect of the excavation position, more dust is generated at the face position, the health of construction personnel is seriously harmed, and the quality and the progress of construction are influenced.
The tunnel ventilation mode commonly used now is that to pass through the fan with the new trend and to pass through the fan drum from the top pipeline in tunnel and go into, releases dirty wind in the same direction as the tunnel of excavation, and the motion of the dust that this kind of ventilation mode can aggravate the blasting production is unfavorable for the construction production. Traditional dust fall mode is spray dust removal, causes tunnel face air humidity big easily, and ground ponding seriously influences construction progress and workman safety, and at foretell ventilation process, the effect of playing is also unobvious.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ventilation dust pelletizing system of tunnel construction under the prior art for solving the not enough in the above-mentioned current tunnel ventilation dust pelletizing technique.
In order to achieve the purpose, the utility model adopts the following technical measures:
a ventilation and dust removal system for tunnel construction comprises: the air collecting device, the air conveying pipeline, the negative pressure air draft device and the bracket;
the air collecting device is arranged inside the tunnel;
one end of the air delivery pipeline is communicated with the air collecting device, and the other end of the air delivery pipeline is connected with the negative pressure air extracting device; the negative pressure air draft device is arranged at the tunnel outlet;
the bracket uniformly supports all parts of the air delivery pipeline.
Optionally, a filtering device is further arranged inside the air delivery pipeline, and the filtering device is arranged at the tail of the air collecting device in a clinging manner.
Optionally, the filter device has a removable filter element, and the filter device and the air collection device are connected into a removable whole.
Optionally, the foremost end of the air collection device is divided into a plurality of branched air collection pipes extending to all positions of the tunnel face.
Optionally, the surface of each air collecting pipe of the air collecting device is uniformly provided with small holes.
Optionally, the air delivery duct includes a plurality of air delivery pipe sections assembled in sections to have any length, and each air delivery pipe section is bolted by a bolt.
Optionally, the negative pressure air draft device comprises a chimney and a top windmill, the top windmill is arranged at the top of the chimney and used for rotating to form negative pressure to suck air in the chimney, and the bottom of the chimney is communicated with the air conveying pipeline.
The utility model has the advantages as follows:
the utility model discloses a wind conveying pipeline intercommunication air collection device and negative pressure updraft ventilator utilize three kinds of energy such as ground temperature in natural wind, solar energy, the tunnel, form the negative pressure in the wind conveying pipeline, with the interior air escape of tunnel outside the tunnel, finally realize the purpose that ventilates and remove dust. The dirty air at the tunnel face position can be effectively discharged, the safety of construction operators can be effectively guaranteed, and the efficiency of construction operation can be guaranteed. The utility model discloses equipment operation is simple and convenient, operation management maintenance cost is lower, good social and economic benefits have.
Further, the utility model discloses an air purification device will have the gas of dust to filter and purify, pass through the air duct with clean air and emit into the environment to reach environmental protection's effect.
Further, the utility model discloses use novel unpowered ventilation unit, utilize natural energy to realize that the interior construction period of tunnel convulsions take a breath, green pollution-free.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an overall view of a ventilation and dust removal system for tunnel construction;
FIG. 2 is a top view of an air collection device of the ventilation and dust removal system for tunnel construction;
fig. 3 is a plan layout view of an air collecting pipe of the ventilation and dust removal system for tunnel construction.
In the figure: the air purifier comprises an air collecting device, a filtering device, a wind conveying pipeline, a negative pressure air extracting device, a support, an air collecting pipe, a bolt, a chimney and a top fan, wherein the air collecting device comprises 1, the filtering device comprises 2, the air conveying pipeline comprises 3, the negative pressure air extracting device comprises 4, the support is 5, the air collecting pipe comprises 6, the bolt is 7, the chimney is 8, and the top fan is 9.
Detailed Description
The structure and operation of the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, a ventilation and dust removal system for tunnel construction includes: the air filter comprises an air collecting device 1, a filtering device 2, an air conveying pipeline 3, a negative pressure air extracting device 4, a bracket 5 and the like. The air collecting device 1 is divided into a plurality of branched air collecting pipes 6 at the most front position of the system and extends to all parts of the tunnel face; the filtering device 2 is closely attached to the tail part of the air collecting device 1 and is used for filtering and purifying the collected air; the air delivery pipeline 3 connects the filtering device 2 with a negative pressure air draft device 4 at the outlet of the tunnel; the negative pressure air conveying device 4 is arranged at the tunnel portal and connected with the tail part of the air conveying pipeline 3, and the treated air is extracted and discharged; the support 5 is uniformly arranged at each position of the air delivery pipeline 3.
As shown in fig. 1 to 3, the air collecting pipes 6 of the air collecting device 1 are uniformly provided with small holes on the surface thereof, so as to fully absorb the surrounding air and completely suck dust-laden air into the duct. After dirty gas is sucked out, the air pressure in the tunnel is reduced, fresh air is pressed in from the hole to form a circulation, and the influence of dust on construction is greatly reduced.
As shown in fig. 1 to 3, the filter element of the filter device 2 can be removed and replaced, and the device is connected with the air collection device 1 as a whole and can be independently removed and installed; after the air is treated by the device and discharged into the atmosphere, the air environment is not polluted.
Referring to fig. 1 to 3, the air delivery pipe 3 is a pipe joint which can be assembled into any length in a segmented manner, and each air delivery pipe joint is bolted through a bolt 7 at the end part, so that the requirement of absorbing and purifying air at the position where the tunnel is continuously tunneled can be met.
Referring to fig. 1 to 3, the negative pressure air draft device 4 is a device for ventilation without power assistance, and the device is composed of a chimney 8 and a top windmill 9.
The negative pressure air draft device is a ventilation device without power assistance, and the principle is as follows:
1. when natural wind is blown over the chimney of the device, dynamic pressure is generated at the outlet of the chimney to form negative pressure suction effect on the pipeline,
2. the air temperature in the chimney is raised by utilizing the heating function of solar energy, the air in the pipeline connected with the chimney is sucked by utilizing the principle that the hot air is raised,
3. the tunnel is generally buried deeply, the internal temperature of the tunnel is high and even reaches more than 50 ℃, the air in the tunnel can be discharged along a pipeline by utilizing the temperature difference between the air in the tunnel and the external air, the unpowered ventilation effect of the tunnel is realized by utilizing the three energy sources, and the tunnel is energy-saving and environment-friendly.
The following description of the functions and methods of use of the various components of the present invention is as follows:
firstly, the equipment mainly comprises the following parts:
1. air collection device
The dust collector consists of several air collecting pipes and connecting members, and the air collecting pipes have small holes in the surface for absorbing air to suck dust-bearing gas into the pipes completely. After dirty air at the construction position is sucked out, the air pressure in the tunnel is reduced, and fresh air is pressed into the tunnel from the hole.
2. Filter device
The utility model discloses a filter equipment's filter core can demolish the change to reach and carry out continuity of operation and not influence the effect of filtration purification dust.
3. Air delivery pipeline
The air delivery pipeline used at this time is composed of pipe joints which can be assembled into any length in a segmented mode, and can meet the requirements for absorbing and purifying air at the position where the tunnel is continuously tunneled.
4. Negative pressure air draft device
The negative pressure is formed in the air delivery pipeline by utilizing three energy sources such as natural wind, solar energy, ground temperature in the tunnel and the like, and the air in the tunnel is discharged out of the tunnel, so that the aims of ventilation and dust removal are finally fulfilled.
The using method comprises the following steps:
1. and (5) installing a negative pressure air draft device at the tunnel portal and debugging to a normal working state.
2. And erecting a wind conveying pipeline support, and installing the pipeline according to the required length.
3. The air collection device and the filter device are mounted to the front end when the device is to be mounted in a tunnel face position.
4. And checking whether the pipeline screw is screwed down or not and whether the gas leaks or not.
5. And after the inspection is finished, the pipeline can be connected for ventilation and dust removal.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and these modifications or equivalents do not depart from the spirit and scope of the present invention, which is all within the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a ventilation dust pelletizing system of tunnel construction which characterized in that includes: the air collecting device, the air conveying pipeline, the negative pressure air draft device and the bracket;
the air collecting device is arranged inside the tunnel;
one end of the air delivery pipeline is communicated with the air collecting device, and the other end of the air delivery pipeline is connected with the negative pressure air extracting device; the negative pressure air draft device is arranged at the tunnel outlet;
the bracket uniformly supports all parts of the air delivery pipeline.
2. The ventilation and dust removal system for tunnel construction as claimed in claim 1, wherein a filtering device is further arranged inside the air delivery pipeline, and the filtering device is closely arranged at the tail of the air collecting device.
3. A ventilation and dust removal system for tunnel construction as claimed in claim 2, wherein said filter means has a removable filter cartridge, said filter means being integrally and removably connected to said air collection means.
4. The ventilation and dust removal system for tunnel construction of claim 1, wherein the foremost end of the air collection device is branched into a plurality of branched air collection pipes extending to all positions of the tunnel face.
5. The ventilation and dust removal system for tunnel construction of claim 4, wherein the surface of each air collecting pipe of the air collecting device is uniformly provided with small holes.
6. The ventilation and dust removal system for tunnel construction as claimed in claim 1, wherein the air duct comprises a plurality of air duct sections assembled in sections to have any length, and each air duct section is bolted by bolts.
7. The ventilation and dust removal system for tunnel construction as claimed in claim 1, wherein the negative pressure air draft device comprises a chimney and a top windmill, the top windmill is arranged at the top of the chimney and used for rotating to form negative pressure to suck air in the chimney, and the bottom of the chimney is communicated with the air conveying pipeline.
CN202022913340.7U 2020-12-07 2020-12-07 Ventilation and dust removal system for tunnel construction Active CN213928416U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022913340.7U CN213928416U (en) 2020-12-07 2020-12-07 Ventilation and dust removal system for tunnel construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022913340.7U CN213928416U (en) 2020-12-07 2020-12-07 Ventilation and dust removal system for tunnel construction

Publications (1)

Publication Number Publication Date
CN213928416U true CN213928416U (en) 2021-08-10

Family

ID=77149394

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022913340.7U Active CN213928416U (en) 2020-12-07 2020-12-07 Ventilation and dust removal system for tunnel construction

Country Status (1)

Country Link
CN (1) CN213928416U (en)

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