CN211448744U - Highway tunnel construction ventilation structure - Google Patents
Highway tunnel construction ventilation structure Download PDFInfo
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- CN211448744U CN211448744U CN201922248937.1U CN201922248937U CN211448744U CN 211448744 U CN211448744 U CN 211448744U CN 201922248937 U CN201922248937 U CN 201922248937U CN 211448744 U CN211448744 U CN 211448744U
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Abstract
The utility model relates to a highway tunnel construction ventilation structure, it is including installing the updraft ventilator in the tunnel, the tunnel includes tunnel ground, face and keeps away from the tunnel entry of face one end. The air draft device comprises an exhaust fan arranged at the entrance of the tunnel and an exhaust pipe connected with the air inlet end of the exhaust fan, and the other end of the exhaust pipe extends to a position close to the tunnel face; the exhaust fan air-out end is connected with the dust collector who is used for collecting harmful dust, dust collector includes the dust removal barrel and installs in the dust removal barrel and along a plurality of layers of filter screen of dust removal barrel axial distribution. The utility model has the advantages of dust pollution can be reduced.
Description
Technical Field
The utility model belongs to the technical field of the technique of highway tunnel construction and specifically relates to a highway tunnel construction ventilation structure is related to.
Background
The construction process of the highway tunnel relates to the construction processes of using an internal combustion engine, drilling rock, exploding explosive and the like, a large amount of dust and harmful gas can be generated in the construction processes, and various other harmful gases can be released in the stratum during rock-soil excavation, so that the air in a narrow space in a hole is very dirty, and the threat to the health of constructors is brought. In order to maintain the health of operators, ensure the smooth construction and improve the working efficiency, fresh air needs to be supplemented into the holes, harmful gases are removed, the dust concentration is reduced, and an effective and general method is to use a ventilation structure.
The utility model discloses a grant notice number is CN 204921010U's utility model discloses a highway tunnel construction ventilation structure, including air intake lane and return air lane, through set up a plurality of fans towards the tunnel front end in the air intake lane and set up a plurality of fans that back to the tunnel front end in the return air lane, realized supplying with fresh air's invention purpose in the highway tunnel. However, the technical scheme does not collect and treat a large amount of harmful dust generated in the explosive explosion and the use process of the internal combustion engine, and the large amount of harmful dust is diffused into the atmosphere to cause serious environmental pollution.
Disclosure of Invention
Not enough to prior art exists, the utility model aims at providing a can reduce dust pollution's highway tunnel construction ventilation structure.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a highway tunnel construction ventilation structure, is including installing updraft ventilator in the tunnel, the tunnel includes tunnel ground, face and keeps away from the tunnel entry of face one end. The air draft device comprises an exhaust fan arranged at the entrance of the tunnel and an exhaust pipe connected with the air inlet end of the exhaust fan, and the other end of the exhaust pipe extends to a position close to the tunnel face; the exhaust fan air-out end is connected with the dust collector who is used for collecting harmful dust, dust collector includes the dust removal barrel and installs in the dust removal barrel and along a plurality of layers of filter screen of dust removal barrel axial distribution.
By adopting the technical scheme, the air outlet end of the exhaust fan is connected with the dust removal device for collecting harmful dust, harmful waste gas generated in the processes of rock drilling, explosive explosion and the like in the construction process of the highway tunnel enters the exhaust pipe under the action of the exhaust fan and then enters the dust removal device, the harmful dust in the harmful waste gas is intercepted in the dust removal device under the action of the filter screen in the dust removal device, and the gas purified by the dust removal device is discharged into the atmosphere, so that the dust pollution is reduced, and the invention purpose of reducing the dust pollution is realized.
Preferably, the side wall of the dust removal cylinder body close to the tunnel ground comprises a dust collector with a gradually reduced cross section area, and the outer wall of the dust removal cylinder body is provided with a vibration motor for vibrating the dust removal cylinder body to enable dust on the filter screen to fall into the dust collector.
Through adopting above-mentioned technical scheme, set up the dust arrester on the lateral wall that the dust removal barrel is close to tunnel ground, set up vibrating motor at dust removal barrel outer wall, the harmful dust of collecting on the filter screen is collected in the dust arrester is gone into to the vibration effect whereabouts of vibrating motor, is favorable to the concentrated clearance of harmful dust among the dust collector, avoids the harmful dust of accumulation on the filter screen too much to lead to the condition emergence that dust collector can not normal use, guarantees dust collector's normal operating.
Preferably, the inner cavity of the dust collector is in an inverted cone shape, the side of the minimum position of the inner cavity of the dust collector faces the ground side of the tunnel, and the side of the dust collector facing the ground side of the tunnel is provided with an opening and closing door.
Through adopting above-mentioned technical scheme, the inner chamber of dust arrester is the back taper, and dust among the dust collector falls into the inner wall slip to the dust arrester bottom of dust arrester back edge back taper inner chamber, and the rethread door that opens and shuts clears up, can convenient and fast ground concentrate the clearance to harmful dust in the dust arrester, guarantees dust collector's normal operating.
Preferably, one end of the filter screen close to the tunnel ground extends into an inner cavity of the dust collector, the peripheral sides of the parts of the filter screen which do not extend into the inner cavity of the dust collector are connected with the inner wall of the dust removal cylinder, and a gap is reserved between the filter screen and the inner wall of the dust collector.
Through adopting above-mentioned technical scheme, the filter screen is close to in the one end on tunnel ground extends to the inner chamber of dust arrester, the filter screen does not extend to the periphery side of the part in dust arrester inner chamber all with dust removal barrel inner wall connection, guarantees that the harmful gas through dust collector all can filter through the filter screen, guarantees dust collector's filtration efficiency.
Preferably, a plurality of air suction holes are formed in the side wall of the air suction pipe along the direction from the air suction fan to the tunnel face.
Through adopting above-mentioned technical scheme, set up a plurality of induced drafts holes along the direction of air exhauster to the face on the exhaust column lateral wall, make in the tunnel along the possible dirty air of direction different positions department of air exhauster to the face in the tunnel be taken out by the air exhauster as far as possible, the outside fresh air of tunnel gets into the tunnel again, improves the replacement efficiency of dirty air in the fresh air replacement tunnel outside the tunnel, reduces the probability that constructor was harmed by harmful substance in the tunnel.
Preferably, the hole diameter of the air suction holes is gradually increased from the position close to the tunnel entrance to the position close to the tunnel face.
Through adopting above-mentioned technical scheme, be close to harmful dust and harmful gas's concentration in the air of face position higher, be close to harmful dust and harmful gas's concentration in the air of tunnel entry lower, the convulsions hole is from being close to tunnel entry to being close to the gradual grow of aperture in the face direction, dirty air that is close to the face can be taken away by the air exhauster sooner, reduce the concentration of harmful dust and harmful gas in being close to face position department air, reduce the probability that constructor is harmed by harmful substance in the tunnel.
Preferably, install air supply arrangement in the tunnel, air supply arrangement is including installing the air-blower at the tunnel entry and the blast pipe of being connected with the air-blower, and the blast pipe other end extends to the position department that is close to the face, be provided with a plurality of supply-air vents on the blast pipe lateral wall along the direction of air-blower to face, the supply-air vent is from being close to the tunnel entry to being close to the face on the aperture grow gradually.
Through adopting above-mentioned technical scheme, set up the air-blower and extend to the blast pipe that is close to face position department at the tunnel entrance, set up a plurality of supply-air vents on the direction of following the air-blower to face on the blast pipe lateral wall, the supply-air vent is from being close to tunnel entry to being close to the gradual grow in face direction aperture, carry fresh air through the air-blower in to the tunnel incessantly, dirty air rethread air exhauster discharge in the tunnel, reduce the concentration of harmful substance in the tunnel, reduce the probability that constructor is harmd by harmful substance in the tunnel.
Preferably, the tunnel includes a first sidewall and a second sidewall opposite to the first sidewall, the air supply duct is installed adjacent to the first sidewall, and the air exhaust duct is installed adjacent to the second sidewall.
Through adopting above-mentioned technical scheme, blast pipe and exhaust column install respectively at two relative lateral walls, fresh air in the blast pipe gets into in the tunnel from the position department that is close to first lateral wall, fresh air spreads to the second lateral wall from first lateral wall again, blow dirty air in the tunnel and remove to the position department that is close to the second lateral wall, dirty air in the tunnel gets into the exhaust column and leaves the tunnel from the position department that is close to the second lateral wall again, avoid the fresh air that the blast pipe sent out directly to get into in the exhaust column, improve the replacement efficiency of fresh air replacement dirty air, reduce the concentration of harmful substance in the tunnel, reduce the probability that constructor is harmed by harmful substance in the tunnel.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the air outlet end of the exhaust fan is connected with a dust removal device for collecting harmful dust, harmful waste gas generated in procedures such as rock drilling, explosive explosion and the like in the construction process of a highway tunnel enters the exhaust pipe under the action of the exhaust fan and then enters the dust removal device, the harmful dust in the harmful waste gas is intercepted in the dust removal device under the action of a filter screen in the dust removal device, and the gas purified by the dust removal device is discharged into the atmosphere, so that the dust pollution is reduced, and the aim of reducing the dust pollution is fulfilled;
2. the side wall of the dust removal barrel body close to the tunnel ground is provided with the dust collector, the outer wall of the dust removal barrel body is provided with the vibrating motor, the inner cavity of the dust collector is in an inverted cone shape, dust intercepted on the filter screen falls into the dust collector and then slides to the bottom of the dust collector along the inner wall of the inverted cone-shaped dust collector, and then the dust collector is cleaned through the opening and closing door, so that harmful dust in the dust collector can be conveniently and quickly intensively cleaned, and the normal operation of the dust removal device is ensured; one end of the filter screen close to the ground of the tunnel extends into an inner cavity of the dust collector, and the peripheral sides of the parts of the filter screen which do not extend into the inner cavity of the dust collector are connected with the inner wall of the dust removal cylinder body, so that harmful gas passing through the dust removal device can be filtered by the filter screen, and the filtering efficiency of the dust removal device is ensured;
3. set up the air-blower in the tunnel entry and extend to the blast pipe that is close to face position department, set up a plurality of blast holes and exhaust vent respectively along the direction that tunnel entry arrives the face on the lateral wall of blast pipe and exhaust column, blast pipe and exhaust column are installed respectively at two relative lateral walls, fresh air in the blast pipe gets into in the tunnel from the position department that is close to first lateral wall, fresh air spreads to the second lateral wall from first lateral wall again, blow dirty air in the tunnel and remove to the position department that is close to the second lateral wall, dirty air in the tunnel gets into the exhaust column and discharges the tunnel from the position department that is close to the second lateral wall again, improve fresh air replacement dirty air's replacement efficiency, reduce the concentration of harmful substance in the tunnel, reduce the probability that constructor is damaged by harmful substance in the tunnel.
Drawings
FIG. 1 is a first structural schematic diagram of the embodiment;
FIG. 2 is a second structural schematic diagram of the embodiment;
FIG. 3 is a schematic structural view of a dust removing apparatus according to an embodiment;
FIG. 4 is a sectional view of the dust removing device of the embodiment with the vibration motor hidden.
Reference numerals: 1. a palm surface; 2. a tunnel entrance; 3. an exhaust fan; 4. an exhaust pipe; 5. a dust removal cylinder; 6. a filter screen; 7. a dust collector; 8. a vibration motor; 9. opening and closing the door; 10. A baffle plate; 11. a dust removal device; 12. a blower; 13. an air supply pipe; 14. a suction hole; 15. and an air supply hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a highway tunnel construction ventilation structure, as shown in fig. 1 and 2, is including installing updraft ventilator in the tunnel, and the tunnel includes tunnel ground, face 1 and keeps away from tunnel entry 2 of face 1 one end, and the tunnel includes first lateral wall and the second lateral wall relative with first lateral wall. The updraft ventilator is including installing exhaust fan 3 at tunnel entry 2 and with 3 air inlet end of exhaust fan 4 of being connected, the exhaust column 4 other end extends to and is close to 1 position department of face. The exhaust duct 4 is mounted near the upper part of the second side wall. A plurality of air exhaust holes 14 are arranged on the side wall of the air exhaust pipe 4 along the direction from the air exhaust fan 3 to the palm surface 1. The diameter of the air draft holes 14 gradually increases from the position close to the tunnel entrance 2 to the position close to the tunnel face 1. The air outlet end of the exhaust fan 3 is connected with a dust removing device 11 for collecting harmful dust, and the dust removing device 11 comprises a dust removing cylinder 5 and a plurality of layers of filter screens 6 (shown in a combined figure 4) which are arranged in the dust removing cylinder 5 and are distributed along the axial direction of the dust removing cylinder 5.
As shown in fig. 2, an air supply device is installed in the tunnel, the air supply device includes a blower 12 installed at the tunnel entrance 2 and an air supply pipe 13 connected with the blower 12, the other end of the air supply pipe 13 extends to a position close to the tunnel face 1, a plurality of air supply holes 15 are arranged on the side wall of the air supply pipe 13 along the direction from the blower 12 to the tunnel face 1, and the aperture of the air supply holes 15 gradually increases from the direction close to the tunnel entrance 2 to the direction close to the tunnel face 1. The blast pipe 13 is installed near the lower portion of the first sidewall.
As shown in fig. 3 and 4, a dust collector 7 is disposed on the side wall of the dust collecting cylinder 5 close to the tunnel floor, the dust collector 7 is used for collecting harmful dust falling from the filter screen 6, the inner cavity of the dust collector 7 is in an inverted cone shape, the side of the largest position of the inner cavity of the dust collector 7 is connected with the dust collecting cylinder 5, the side of the smallest position of the inner cavity of the dust collector 7 faces the tunnel floor, and the side of the dust collector 7 facing the tunnel floor is provided with an opening and closing door 9. The outer wall of the dust removal cylinder 5 is provided with a vibration motor 8, and the vibration motor 8 is used for vibrating the dust removal cylinder 5 to enable harmful dust intercepted by the filter screen 6 to fall into the dust collector 7. One end of the filter screen 6 close to the tunnel ground extends into the inner cavity of the dust collector 7, the peripheral sides of the parts of the filter screen 6 which do not extend into the inner cavity of the dust collector 7 are connected with the inner wall of the dust removal cylinder 5, a gap is reserved between the filter screen 6 and the inner wall of the dust collector 7, and harmful dust slides to the bottom of the dust collector 7 through the gap. Dirty air gets into from the left side of dust collector 11 shown in fig. 4, leaves from the right side of dust collector 11, is provided with baffle 10 between filter screen 6 and the dust collector 7 inner wall on the rightmost side, and baffle 10 is used for blockking harmful gas from passing through the clearance between filter screen 6 and the dust collector 7 inner wall, and the one end that is close to tunnel ground of filter screen 6 on the rightmost side is from the left side of baffle 10 and the laminating of baffle 10, and the one end butt dust collector 7 inner wall that baffle 10 is close to tunnel ground.
The specific working process is as follows: a large amount of dust and harmful gas are generated in the construction process of the tunnel, so that air in a narrow space in the tunnel becomes dirty. Starting the air blower 12, the exhaust fan 3 and the vibrating motor 8, enabling fresh air outside the tunnel to enter the tunnel from a position close to the first side wall through an air supply hole 15 of an air supply pipe 13, enabling the fresh air to diffuse to the second side wall from the first side wall, blowing dirty air in the tunnel to move to a position close to the second side wall, enabling the dirty air in the tunnel to enter the air exhaust pipe 4 from an air exhaust hole 14 close to the second side wall, and enabling the dirty air to enter the dust removal barrel 5. Harmful dust in the harmful waste gas is intercepted on the filter screen 6 under the action of the filter screen 6, the intercepted harmful dust falls down from the filter screen 6 into the dust collector 7 under the vibration action of the vibration motor 8, the harmful dust slides to the bottom of the dust collector 7 along the inner wall of the inverted cone-shaped dust collector 7 to be collected, and gas purified by the dust removal device 11 is discharged into the atmosphere, so that dust pollution is reduced, and the aim of reducing dust pollution is fulfilled.
After highway tunnel construction ventilation structure used a period, the harmful dust of collecting in the dust arrester 7 is more, places corresponding dust collecting tool in dust arrester 7 below, opens the door 9 that opens and shuts, and the harmful dust of collecting in the dust arrester 7 falls from dust arrester 7 and gets into dust collecting tool, realizes the concentrated clearance to the harmful dust of collecting in the dust arrester 7, and after the clearance was accomplished, highway tunnel construction ventilation structure can continue to use.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A ventilation structure for highway tunnel construction comprises an air draft device arranged in a tunnel, wherein the tunnel comprises a tunnel ground, a tunnel face (1) and a tunnel inlet (2) far away from one end of the tunnel face (1); the method is characterized in that: the air draft device comprises an air draft fan (3) arranged at the tunnel inlet (2) and an air draft pipe (4) connected with the air inlet end of the air draft fan (3), and the other end of the air draft pipe (4) extends to a position close to the tunnel face (1); exhaust fan (3) air-out end is connected with dust collector (11) that are used for collecting harmful dust, dust collector (11) are including dust removal barrel (5) and install in dust removal barrel (5) and along a plurality of layers of filter screen (6) of dust removal barrel (5) axial distribution.
2. The ventilation structure for road tunnel construction according to claim 1, wherein: the dust removal device is characterized in that the side wall, close to the tunnel ground, of the dust removal barrel body (5) comprises a dust collector (7) with the cross section area gradually reduced, and a vibration motor (8) used for vibrating the dust removal barrel body (5) to enable dust on the filter screen (6) to fall into the dust collector (7) is arranged on the outer wall of the dust removal barrel body (5).
3. The ventilation structure for road tunnel construction according to claim 2, wherein: the inner cavity of the dust collector (7) is in an inverted cone shape, the side of the minimum position of the inner cavity of the dust collector (7) faces the tunnel ground, and an opening and closing door (9) is arranged on the side, facing the tunnel ground, of the dust collector (7).
4. A ventilation structure for road tunnel construction according to claim 3, wherein: one end of the filter screen (6) close to the tunnel ground extends into an inner cavity of the dust collector (7), the outer peripheral side of the part of the filter screen (6) which does not extend into the inner cavity of the dust collector (7) is connected with the inner wall of the dust removal cylinder body (5), and a gap is reserved between the filter screen (6) and the inner wall of the dust collector (7).
5. The ventilation structure for road tunnel construction according to claim 1, wherein: a plurality of air suction holes (14) are arranged on the side wall of the air suction pipe (4) along the direction from the exhaust fan (3) to the palm surface (1).
6. The ventilation structure for road tunnel construction according to claim 5, wherein: the hole diameter of the air suction holes (14) is gradually increased from the direction close to the tunnel entrance (2) to the direction close to the tunnel face (1).
7. The ventilation structure for road tunnel construction according to claim 1, wherein: be provided with air supply arrangement in the tunnel, air supply arrangement is including installing air-blower (12) at tunnel entry (2) and blast pipe (13) of being connected with air-blower (12), and blast pipe (13) other end extends to and is close to face (1) position department, be provided with a plurality of supply-air vents (15) on blast pipe (13) lateral wall along air-blower (12) to the direction of face (1), hole diameter grow gradually in blast-air vents (15) follow the tunnel entry (2) of being close to the face (1) direction.
8. The ventilation structure for road tunnel construction according to claim 7, wherein: the tunnel comprises a first side wall and a second side wall opposite to the first side wall, the air supply pipe (13) is installed close to the first side wall, and the exhaust pipe (4) is installed close to the second side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248937.1U CN211448744U (en) | 2019-12-14 | 2019-12-14 | Highway tunnel construction ventilation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248937.1U CN211448744U (en) | 2019-12-14 | 2019-12-14 | Highway tunnel construction ventilation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448744U true CN211448744U (en) | 2020-09-08 |
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ID=72297087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922248937.1U Expired - Fee Related CN211448744U (en) | 2019-12-14 | 2019-12-14 | Highway tunnel construction ventilation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211448744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278360A (en) * | 2021-12-23 | 2022-04-05 | 中交路桥建设有限公司 | Movable type dust blocking and trapping oxygen supply device and method based on tunnel construction operation |
-
2019
- 2019-12-14 CN CN201922248937.1U patent/CN211448744U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278360A (en) * | 2021-12-23 | 2022-04-05 | 中交路桥建设有限公司 | Movable type dust blocking and trapping oxygen supply device and method based on tunnel construction operation |
| CN114278360B (en) * | 2021-12-23 | 2023-07-25 | 中交路桥建设有限公司 | Mobile dust blocking, trapping and oxygen supplying device and method based on tunnel construction operation |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20211214 |