CN207261032U - A kind of major long tunnel construction combined type ventilating system - Google Patents
A kind of major long tunnel construction combined type ventilating system Download PDFInfo
- Publication number
- CN207261032U CN207261032U CN201721149529.5U CN201721149529U CN207261032U CN 207261032 U CN207261032 U CN 207261032U CN 201721149529 U CN201721149529 U CN 201721149529U CN 207261032 U CN207261032 U CN 207261032U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- import
- main tunnel
- outlet
- put down
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of major long tunnel construction combined type ventilating system, belong to construction ventilation of tunnel field, including the ventilation equipment being arranged in tunnel, tunnel include two be arranged in parallel to the import main tunnel to construction and outlet main tunnel, inclined shaft is provided with the middle part of import main tunnel, the import that is connected by multiple transverse passage-ways between import main tunnel and outlet main tunnel is provided with by import main tunnel and outlet main tunnel puts down to lead and export to put down and lead, the first position in tunnel, the ventilation equipment of the second place and the third place are different, the utility model utilizes forced ventilation, ventilation by low pressure, ventilation by ducts, jet stream guiding is divulged information, different ventilation equipment are set in diverse location and are be combined with each other with staple ventilation, shorten ventilation time, improve major long tunnel drafting efficiency.
Description
Technical field
Construction ventilation of tunnel field is the utility model is related to, especially a kind of combined type ventilating system.
Background technology
With the fast development of China railways, highway and diversion works construction, speciality and major long tunnel are more and more, in order to
Add excavation face and realize rapid construction, majority is usually constructed with multiple work surfaces using the form of construction work for setting inclined shaft service gallery
Construct at the same time, belong to the situation of more excavation face parallel constructions, slope construction is completed after entering main tunnel, more excavation face parallel constructions
The mechanical equipment for causing to put into hole increases, and generates a large amount of CO, NO2, dust etc., hole environment pollution is serious.With tunnel
Driving deepens continuously, and construction environment can also further deteriorate, and become one of problem maximum in construction ventilation of tunnel, so as to apply
Work ventilation becomes one of key factor for influencing such tunnel construction.Tradition ventilation by ducts structure at present, uses mostly
Whole forced ventilation mode, need to increase input high-power forced ventilation machine and jet blower, and each hole needs to lay
Long range ventilation shaft, thus considerably increases construction cost, and with the continuous driving in tunnel, ventilation energy consumption is bigger, leads to
Wind effect is not ideal.
Utility model content
The utility model technical issues that need to address are to provide a kind of major long tunnel construction combined type ventilating system, not
Different ventilation equipment are set with position and are be combined with each other with staple ventilation, shortens ventilation time, improves major long tunnel ventilation
Efficiency, reduces ventilation equipment, ventilation duct, power supply for construction etc. and increases economic efficiency, achieve energy-saving and emission reduction purposes.
In order to solve the above technical problems, technical solution is used by the utility model：
A kind of major long tunnel construction combined type ventilating system, including the ventilation equipment being arranged in tunnel, the tunnel packet
Include two be arranged in parallel to the import main tunnel to construction and outlet main tunnel, be provided with inclined shaft in the middle part of import main tunnel, it is described into
Be provided with by mouthful main tunnel and outlet main tunnel the import being connected between import main tunnel and outlet main tunnel by multiple transverse passage-ways put down lead and
Outlet is flat to be led, and the ventilation equipment of the first position in the tunnel include being arranged on import main tunnel, import is put down and leads, export main tunnel, go out
It is mouthful flat to lead and the axial flow blower of the press-in fresh air of inclined shaft inlet, the jet stream for drawing foul atmosphere that is arranged in the middle part of inclined shaft
Wind turbine, the ventilation equipment of the second place in the tunnel include being arranged on import main tunnel, the press-in fresh air of inclined shaft inlet
Axial flow blower, the extraction foul atmosphere being arranged in the middle part of inclined shaft jet blower, be arranged on inclined shaft and import is put down to lead and located with one voice
Press-in fresh air two axial flow blowers, being positioned close to the outlet of face, flat to lead the press-in located with one voice with transverse passage-way new
Two axial flow blowers of fresh air, the extraction that the ventilation equipment of the third place in the tunnel include being arranged in the middle part of inclined shaft are dirty
The jet blower of air, be arranged on the axial flow blower of the extrusion foul atmosphere of close terminal surface in import main tunnel, be arranged on import
The axial flow blower of the flat press-in fresh air for leading interior close terminal surface, be arranged on the flat press-in for leading interior close terminal surface in outlet
The jet blower of the axial flow blower of fresh air, the extraction foul atmosphere being arranged in the middle part of outlet main tunnel.
Technical solutions of the utility model further improvement lies in that：The first position of the tunnel entrance is included by start bit
Put to import to put down and lead with inclined shaft with one voice, the first position of tunnel exit include by initial position to export it is flat lead with the 3rd it is horizontal logical
With one voice, the second place of the tunnel entrance puts down to lead to put down to import with one voice with inclined shaft including import leads end, and the tunnel goes out in road
Mouthful the second place include outlet it is flat lead with the 3rd transverse passage-way with one voice to export it is flat leads end, the of the tunnel entrance
Three positions, which include being put down by import leading, terminates to import main tunnel to terminate, and the third place of the tunnel exit includes leading knot by exporting to put down
Beam terminates to main tunnel is exported.
Technical solutions of the utility model further improvement lies in that：Import main tunnel and import in the first position are put down and are led
On be provided with staple, the staple well head is provided with the jet blower for discharging foul atmosphere.
Technical solutions of the utility model further improvement lies in that：Inclined shaft in the second place is put down with import leads with one voice
Two axial flow blower front ends at place are provided with only brattice, and the outlet of the close face in the second place, which is put down, to be led and transverse passage-way
The two axial flow blower front ends located with one voice, which are set, stops brattice, and the axis of the close terminal surface in leading is put down in the import in the third place
Flow fan front end sets windbreak, and rear end sets and stops brattice with one voice for the import main tunnel in the third place and inclined shaft, it is described go out
The flat axial flow blower front end for leading interior close terminal surface of mouth, which is set, stops brattice.
By adopting the above-described technical solution, the technological progress that the utility model obtains is：
Three positions of major long tunnel set different ventilation equipment, realize the ventilation side that configuration is different at diverse location
Formula, and be combined with each other with vertical shaft ventilation, shorten ventilation time, improve major long tunnel drafting efficiency, reduce ventilation equipment, ventilation
Pipe, power supply for construction etc. are increased economic efficiency, and are achieved energy-saving and emission reduction purposes.Jet blower is set at the top of staple at the same time, into
One step accelerates the inside and outside circulation of air, also reduces air circulation distance, and circulation is more happy.
Import main tunnel, outlet main tunnel, import put down lead and export it is flat lead it is internal when the axial flow blower for being pressed into fresh air is set
One only brattice is all set in front end, and only brattice one side is fresh air, and another side is foul atmosphere, realizes two kinds of air
Isolation, while ventilating bag is only being set on brattice, provide entrance for press-in fresh air.
Brief description of the drawings
Fig. 1 is the utility model first position structure diagram；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is the utility model second place structure diagram；
Fig. 4 is enlarged drawing at the B of Fig. 1；
Fig. 5 is enlarged drawing at the C of Fig. 1；
Fig. 6 is the utility model the third place structure diagram；
Fig. 7 is enlarged drawing at the D of Fig. 1；
Fig. 8 is enlarged drawing at the E of Fig. 1；
Fig. 9 is enlarged drawing at the F of Fig. 1；
Figure 10 is enlarged drawing at the G of Fig. 1；
Wherein, 1, import main tunnel, 2, outlet main tunnel, 3, inclined shaft, 4, transverse passage-way, 5, import put down and lead, 6, outlet is flat leads, 7, axis
Flow fan, 8, jet blower, 9, staple, 10, only brattice.
Embodiment
The utility model is described in further details with reference to embodiment：
As shown in Fig. 1~10, a kind of major long tunnel construction combined type ventilating system, including the ventilation being arranged in tunnel are set
Standby, wherein tunnel includes two import main tunnels 1 being arranged in parallel and outlet main tunnel 2, and import main tunnel 1 and outlet main tunnel 2 are to applying
Work, the i.e. construction of import main tunnel 1 are opposite with outlet main tunnel 2.It is both provided with and import main tunnel 1 by import main tunnel 1 and outlet main tunnel 2
The import parallel with outlet main tunnel 2, which is put down to lead 5 and export to put down, leads 6, and the import corresponding with outlet main tunnel 2 of import main tunnel 1, which is put down, leads 5
And outlet is put down between leading 6 and is connected by multiple transverse passage-ways 4.Transverse passage-way 4 is defined as No.1 along the construction direction of import main tunnel 1
Transverse passage-way, No. two transverse passage-ways, No. three transverse passage-ways, No. four transverse passage-ways, No. five transverse passage-ways, No. six transverse passage-ways, No. seven transverse passage-ways, No. eight
Transverse passage-way, along outlet main tunnel 2 construction direction by transverse passage-way 4 be defined as No.1 transverse passage-way, No. two transverse passage-ways, No. three it is horizontal logical
Road, No. four transverse passage-ways, No. five transverse passage-ways, No. six transverse passage-ways.The middle part of import main tunnel 1 is provided with inclined shaft 3, and inclined shaft 3 and import are just
Hole 1 and import, which are put down, to be led 5 inclinations and intersects, and the position intersected with import main tunnel 1 of inclined shaft 3 is located at No. four transverse passage-ways of import main tunnel 1
Position.
Tunnel is divided into three positions, the first position of tunnel entrance includes being put down by initial position to import leading 5 and inclined shaft 3
Locate with one voice, the first position of tunnel exit includes leading 6 and the 3rd transverse passage-way 4 by initial position to outlet is flat（Export main tunnel 3
No. three transverse passage-ways）With one voice, the second place of tunnel entrance is put down including import leads 5 and is put down with one voice to import with inclined shaft 3 and lead 5 terminals,
The second place of tunnel exit, which includes exporting putting down, leads 6 and the 3rd transverse passage-way 4（Export No. three transverse passage-ways of main tunnel 3）With one voice extremely
Outlet is flat to lead 6 terminals, and the third place of tunnel entrance, which includes being put down by import, leads 5 terminals to 1 terminal of import main tunnel, tunnel exit
The third place includes by exporting flat 6 terminals of leading to 2 terminal of main tunnel is exported, wherein the third place of tunnel entrance and tunnel exit
A third place only working face, i.e. import main tunnel 1 and outlet main tunnel 2, import at this time, which is put down to lead 5 and export to put down, leads 6
Terminate through construction.
Ventilation equipment wherein in each position are also differed with the different ventilation equipment of position.The ventilation of first position
Equipment is included in import main tunnel 1, import put down lead 5, outlet main tunnel 2, outlet it is flat lead 6 and the press-in that sets of 3 inlet of inclined shaft it is fresh
The axial flow blower 7 of air, realizes forced ventilation；The jet blower 8 of the extraction foul atmosphere set in the middle part of inclined shaft, accelerates
The mass rate of emission of 3 foul atmosphere of inclined shaft.Except being not provided with only wind on the 4th transverse passage-way of import main tunnel 1 wherein in first position
Wall, as long as remaining transverse passage-way middle part connected is respectively provided with only brattice.
The press-in fresh air that the ventilation equipment of the second place in tunnel are included in import main tunnel 1,3 inlet of inclined shaft is set
Axial flow blower 7, realize forced ventilation；The jet blower 8 of the extraction foul atmosphere set at the middle part of inclined shaft 3, accelerates inclined shaft
The mass rate of emission of foul atmosphere；Put down in inclined shaft 3 and import and lead 5 two axial flow blowers 7 for being pressed into fresh air that place is set with one voice,
Realize forced combination ventilation by ducts, an axial flow blower 7 supply import put down lead 5 construction, another 7 edge of axial flow blower
No. seven transverse passage-ways for import main tunnel 1 enter supply import main tunnel 1 in import main tunnel 1 and construct, wherein in two axial flow blowers 7
Front end, which is set, stops brattice 10, and wherein front end is before and after being defined along construction direction；6 and horizontal stroke are led being put down close to the outlet of face
Passage 4 is located with one voice, i.e., two axial flow blowers 7 of the press-in fresh air set at No. three transverse passage-way positions, realize forced
With reference to ventilation by ducts, 7 delivery outlet of axial flow blower put down lead 6 construction, another axial flow blower 7 along outlet main tunnel 2
No. three transverse passage-ways construct into delivery outlet main tunnel 2 in inlet/outlet main tunnel 2, stop wherein being set in the front end of two axial flow blowers 7
Brattice 10, wherein front end are before and after being defined along construction direction.Wherein except the 4th transverse passage-way of import main tunnel 1 and the 7th horizontal stroke
Passage, export and be not provided with only brattice at the 3rd transverse passage-way of main tunnel 2, as long as it is respectively provided with the middle part of remaining transverse passage-way for having connected
Only brattice.
The ventilation equipment of the third place in tunnel are included in the jet blower 8 for the extraction foul atmosphere that the middle part of inclined shaft 3 is set；
It is close to the position of terminal surface in import main tunnel 1, i.e., dirty empty in the extrusion that import main tunnel 1 and No. seven transverse passage-ways are located to set with one voice
The axial flow blower 7 of gas, in import main tunnel 1, rear end sets only brattice 10 with one voice with inclined shaft 3, realizes ventilation by low pressure；Put down in import
The position of the close terminal surface in 5 is led, i.e., the axial flow blower 7 of the press-in fresh air set at No. eight transverse passage-ways, along No. eight
Transverse passage-way enters supply import main tunnel 1 in import main tunnel 1 and constructs；In the flat position for leading the close terminal surface in 6 in outlet, that is, export
It is flat to lead the axial flow blower 7 that press-in fresh air is set at final position, wherein windbreak 10 is set in the front end of axial flow blower 7,
Wherein front end is before and after being defined along construction direction；2 middle part of main tunnel in outlet, i.e., set at No. three transverse passage-way positions and draw dirt
The jet blower 8 of turbid air.Wherein except not having on the 8th transverse passage-way of import main tunnel 1 and the 6th transverse passage-way of outlet main tunnel 2
Set and stop brattice, as long as remaining transverse passage-way middle part connected is respectively provided with only brattice.
What wherein adjacent all wind turbine front ends were set is only both provided with hole on brattice 10, and ventilating bag is provided with hole.Only wind
10 one side of wall is fresh air, and another side is foul atmosphere, realizes the isolation of two kinds of air.
Import main tunnel 1 and import wherein in first position, which put down to lead, is provided with staple 9 on 5,9 well head of staple is provided with
The jet blower that foul atmosphere is discharged.The utility model sets different ventilation equipment in three positions of major long tunnel, real
Different draft types is configured at existing diverse location, and is be combined with each other with vertical shaft ventilation, shortens ventilation time, improves major long tunnel
Drafting efficiency, reduces ventilation equipment, ventilation duct, power supply for construction etc. and increases economic efficiency, achieve energy-saving and emission reduction purposes.At the same time
Axial flow blower is set at the top of staple, further speeds up the inside and outside circulation of air, also reduces air circulation distance, circulation is more smooth
It hurry up.
Claims (4)
- The combined type ventilating system 1. a kind of major long tunnel is constructed, including the ventilation equipment being arranged in tunnel, it is characterised in that：Institute State tunnel include two be arranged in parallel to the import main tunnel of construction（1）With outlet main tunnel（2）, import main tunnel（1）Middle part It is provided with inclined shaft（3）, the import main tunnel（1）With outlet main tunnel（2）Side is provided with and import main tunnel（1）With outlet main tunnel（2） Between pass through multiple transverse passage-ways（4）The import of connection, which is put down, to be led（5）Put down and lead with outlet（6）, the ventilation of the first position in the tunnel sets It is standby to include being arranged on import main tunnel（1）, import puts down and leads（5）, outlet main tunnel（2）, outlet is flat leads（6）And inclined shaft（3）Inlet It is pressed into the axial flow blower of fresh air（7）, be arranged in the middle part of inclined shaft extraction foul atmosphere jet blower（8）, the tunnel The second place ventilation equipment include be arranged on import main tunnel（1）, inclined shaft（3）The axis stream wind of the press-in fresh air of inlet Machine（7）, be arranged on inclined shaft（3）The jet blower of the extraction foul atmosphere at middle part（8）, be arranged on inclined shaft（3）Put down and lead with import（5） Two axial flow blowers of the press-in fresh air located with one voice（7）, the outlet that is positioned close to face puts down and leads（6）With transverse passage-way （4）Two axial flow blowers of the press-in fresh air located with one voice（7）, the ventilation equipment of the third place in the tunnel are including setting In inclined shaft（3）The jet blower of the extraction foul atmosphere at middle part（8）, be arranged on import main tunnel（1）The extrusion of interior close terminal surface The axial flow blower of foul atmosphere（7）, be arranged on import and put down and lead（5）The axial flow blower of the press-in fresh air of interior close terminal surface （7）, be arranged on that outlet is flat to be led（6）The axial flow blower of the press-in fresh air of interior close terminal surface（7）, be arranged on outlet main tunnel （2）The jet blower of the extraction foul atmosphere at middle part（8）.
- A kind of 2. major long tunnel construction combined type ventilating system according to claim 1, it is characterised in that：The tunnel into The first position of mouth includes being put down to import by initial position leading（5）With inclined shaft（3）With one voice, the first position of tunnel exit include by Initial position to outlet is flat to be led（6）With the 3rd transverse passage-way（4）With one voice, the second place of the tunnel entrance is put down including import and is led （5）With inclined shaft（3）Put down and lead to import with one voice（5）Terminate, the second place of the tunnel exit includes exporting flat lead（6）With the 3rd A transverse passage-way（4）Led with one voice to outlet is flat（6）Terminate, the third place of the tunnel entrance includes being put down by import leading（5）Terminate To import main tunnel（1）Terminate, the third place of the tunnel exit is included by exporting flat lead（6）Terminate to outlet main tunnel（2）Knot Beam.
- A kind of 3. major long tunnel construction combined type ventilating system according to claim 1, it is characterised in that：Described first Put interior import main tunnel（1）Put down and lead with import（5）On be provided with staple（9）, the staple（9）Well head is provided with dirt The jet blower of air discharge.
- A kind of 4. major long tunnel construction combined type ventilating system according to claim 2, it is characterised in that：The second Put interior inclined shaft（3）Put down and lead with import（5）Two axial flow blowers located with one voice（7）Front end is provided with only brattice（10）, described The outlet of close face in two positions, which is put down, to be led（6）With transverse passage-way（4）Two axial flow blowers located with one voice（7）Front end, which is set, stops Brattice（10）, the import in the third place, which is put down, to be led（5）The axial flow blower of interior close terminal surface（7）Front end sets windbreak （10）, the import main tunnel in the third place（1）With inclined shaft（3）Rear end, which is set, with one voice stops brattice（10）, the outlet is flat to be led （6）The axial flow blower of interior close terminal surface（7）Front end, which is set, stops brattice（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721149529.5U CN207261032U (en) | 2017-09-08 | 2017-09-08 | A kind of major long tunnel construction combined type ventilating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721149529.5U CN207261032U (en) | 2017-09-08 | 2017-09-08 | A kind of major long tunnel construction combined type ventilating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261032U true CN207261032U (en) | 2018-04-20 |
Family
ID=61920836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721149529.5U Expired - Fee Related CN207261032U (en) | 2017-09-08 | 2017-09-08 | A kind of major long tunnel construction combined type ventilating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207261032U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756989A (en) * | 2018-07-13 | 2018-11-06 | 中铁十九局集团第六工程有限公司 | A kind of Tunnel Ventilation System and tunnel ventilation method |
| CN109488367A (en) * | 2018-12-20 | 2019-03-19 | 中铁二院工程集团有限责任公司 | A kind of one-tunnel two-tracks railway tunnel is stopped rescue system and rescue mode at random |
| CN109958467A (en) * | 2019-04-16 | 2019-07-02 | 中铁十七局集团第二工程有限公司 | A kind of dust control by ventilation method for constructing tunnel |
| CN112065486A (en) * | 2020-08-27 | 2020-12-11 | 中铁三局集团广东建设工程有限公司 | Ventilation method for long and large tunnel construction |
| CN112177657A (en) * | 2020-08-14 | 2021-01-05 | 中铁十六局集团铁运工程有限公司 | Segmented ventilation system for long-distance tunnel and implementation method thereof |
| CN113931655A (en) * | 2021-10-08 | 2022-01-14 | 贵州省公路工程集团有限公司 | Relay press-in type and roadway type combined ventilation system |
-
2017
- 2017-09-08 CN CN201721149529.5U patent/CN207261032U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756989A (en) * | 2018-07-13 | 2018-11-06 | 中铁十九局集团第六工程有限公司 | A kind of Tunnel Ventilation System and tunnel ventilation method |
| CN108756989B (en) * | 2018-07-13 | 2024-04-02 | 中铁十九局集团第六工程有限公司 | Tunnel ventilation system and tunnel ventilation method |
| CN109488367A (en) * | 2018-12-20 | 2019-03-19 | 中铁二院工程集团有限责任公司 | A kind of one-tunnel two-tracks railway tunnel is stopped rescue system and rescue mode at random |
| CN109958467A (en) * | 2019-04-16 | 2019-07-02 | 中铁十七局集团第二工程有限公司 | A kind of dust control by ventilation method for constructing tunnel |
| CN112177657A (en) * | 2020-08-14 | 2021-01-05 | 中铁十六局集团铁运工程有限公司 | Segmented ventilation system for long-distance tunnel and implementation method thereof |
| CN112177657B (en) * | 2020-08-14 | 2022-07-22 | 中铁十六局集团铁运工程有限公司 | Sectional type ventilation system for long-distance tunnel and implementation method thereof |
| CN112065486A (en) * | 2020-08-27 | 2020-12-11 | 中铁三局集团广东建设工程有限公司 | Ventilation method for long and large tunnel construction |
| CN113931655A (en) * | 2021-10-08 | 2022-01-14 | 贵州省公路工程集团有限公司 | Relay press-in type and roadway type combined ventilation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207261032U (en) | A kind of major long tunnel construction combined type ventilating system | |
| CN203097922U (en) | Multiple-working face ventilation structure for long and large tunnel | |
| CN202768046U (en) | Jet ventilation structure for tunnel construction of single inclined shaft and double main tunnels | |
| CN202391448U (en) | Roadway type ventilating structure of no-air door of long-distance tunnel | |
| CN104314600B (en) | Article three, the construction ventilation method of Parallel Tunnel | |
| CN204783838U (en) | Nested formula air -out structure of wind -tunnel | |
| CN109139081B (en) | High-gas ultra-long tunnel construction ventilation method | |
| CN111577376B (en) | Mine driving face dust removal method | |
| CN105986833A (en) | Inclined shaft auxiliary type tunnel ventilation system with partition plates | |
| CN106930781A (en) | A kind of gas tunnel method of ventilation and its structure | |
| CN108301859A (en) | A kind of Large Underground water seal cave depot group push-pull type construction ventilation method and its system | |
| CN107387145A (en) | A kind of major long tunnel ventilating system of long range air-supply | |
| CN211230483U (en) | Middle partition plate air duct type railway double-hole tunnel | |
| CN203518147U (en) | Air conditioner air flue structure and air conditioner with air conditioner air flue structure | |
| CN102748169A (en) | Mixing device for Exhaust Gas Recirculation (EGR) of vehicle engine | |
| CN202628319U (en) | Mixing device for Exhaust Gas Recirculation (EGR) of vehicle engine | |
| CN207297062U (en) | The major long tunnel ventilation unit of air-supply over long distances | |
| CN101349158B (en) | Energy-saving environment protection type tunnel automatic exhauster | |
| CN211549759U (en) | Many working faces of long tunnel ventilation structure | |
| CN204491203U (en) | The airflow dyeing machine of the two air-out blower fan of a kind of external | |
| CN215256279U (en) | Ventilation structure for long tunnel underground fan room | |
| CN206707747U (en) | A kind of gas tunnel aeration structure | |
| CN112523793A (en) | Shunting wind cabin ventilation system and ventilation method for tunnel inclined shaft construction | |
| CN201461474U (en) | Novel jet fan | |
| CN115653662B (en) | Ventilating system of long-distance single-head roadway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20190908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |