CN214697914U - Device for improving ventilation effect of tunnel - Google Patents
Device for improving ventilation effect of tunnel Download PDFInfo
- Publication number
- CN214697914U CN214697914U CN202120472169.2U CN202120472169U CN214697914U CN 214697914 U CN214697914 U CN 214697914U CN 202120472169 U CN202120472169 U CN 202120472169U CN 214697914 U CN214697914 U CN 214697914U
- Authority
- CN
- China
- Prior art keywords
- support ring
- fixed support
- fixed
- air pipe
- tunnel
- 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
- 238000009423 ventilation Methods 0.000 title claims abstract description 50
- 230000000694 effects Effects 0.000 title claims abstract description 23
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 239000000428 dust Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000002575 chemical warfare agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- -1 steam Substances 0.000 description 1
Images
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- Ventilation (AREA)
Abstract
The utility model discloses an improve device of tunnel ventilation effect, its technical scheme is: including air pipe, the air pipe outside is equipped with fixed subassembly, fixed subassembly includes fixed support ring, fixed support ring is fixed to inlay and is located the air pipe outside, fixed support ring has seted up a plurality of through-holes along air pipe circumferencial direction is fixed, and is a plurality of the inboard all fixed the inlaying of through-hole is equipped with the fan, air pipe adopts the air duct cloth, air pipe diameter sets up to 800mm, fixed support ring width sets up to 300mm, fixed support ring internal diameter sets up to 740mm, the fixed support ring wall thickness sets up to 30mm, fixed support ring arranges one along air pipe length direction interval 20m, the beneficial effects of the utility model are that: the fan is rotated by utilizing the pressure difference between the interior of the pipeline and the exterior of the pipeline formed by the exhaust fan, so that the middle position of the tunnel can also have a good ventilation effect.
Description
Technical Field
The utility model relates to a tunnel ventilation technical field, concretely relates to improve device of tunnel ventilation effect.
Background
Tunnel construction is a complicated process, its construction environment is also poor, for example, harmful gas concentration is too high in the tunnel, the dust pollution that the explosion produced, shield constructs the machine and digs into and produces the heat and lead to the temperature height in the hole etc., therefore, it is very necessary to adopt good ventilation mode, in tunnel construction, because bore the hole, the explosive blasting, the dress sediment, the injection mixes earth, the exhaust of internal-combustion engine and haulage vehicle, the interior oxygen of hole is too little, emit in the stratum during excavation and mix various harmful gas and rock dust, make the air in the narrow space in the hole very turbid dirty, great threat influence is serious to human health, must supply fresh air to the hole in, get rid of harmful gas, reduce the dust concentration under the current standard, the ventilation should satisfy following three requirements: supplying fresh air to the interior of the first project; secondly, discharging harmful substances such as harmful gas and dust; and thirdly, the temperature, the relative humidity and the flow rate of the air in the engineering interior reach the standard.
The prior art has the following defects: the existing tunnel construction usually adopts longitudinal ventilation, the ventilation effect of the ventilation mode can only be improved at the pipe end (construction face or shield position) of the ventilation pipe to play a local ventilation role, the ventilation condition of the middle position of the tunnel is not improved, the whole ventilation effect of the tunnel is poor, the concentration of harmful substances such as harmful gas in the tunnel can not be reduced, and the temperature, the relative humidity and the flow velocity of the air in the tunnel can not reach the corresponding standard.
Therefore, it is necessary to develop a device for improving the ventilation effect of the tunnel.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides an improve device of tunnel ventilation effect through seting up the through-hole through the pipeline lateral wall, at through-hole lateral wall installation fan to it is poor to solve the whole ventilation effect in tunnel, can't reduce the concentration of harmful substance such as harmful gas in the tunnel, and the temperature of the inside air in tunnel, relative humidity and the velocity of flow also can't reach the problem of corresponding standard.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an improve tunnel ventilation effect's device, includes air pipe, the air pipe outside is equipped with fixed subassembly, fixed subassembly includes fixed support ring, fixed support ring is fixed to be inlayed and is located the air pipe outside, fixed support ring is fixed along the air pipe circumferencial direction has seted up a plurality of through-holes, and is a plurality of the through-hole inboard is all fixed to be inlayed and is equipped with the fan.
Preferably, the ventilation pipeline adopts air duct cloth, and the diameter of the ventilation pipeline is set to be 800 mm.
Preferably, the width of the fixed support ring is set to 300mm, the inner diameter of the fixed support ring is set to 740mm, the wall thickness of the fixed support ring is set to 30mm, and the fixed support ring is arranged at an interval of 20m along the length direction of the ventilation pipeline.
Preferably, the diameter of the through holes is set to 150mm, the thickness of the through holes is set to 30mm, and the through holes are arranged one by one at intervals of 72 degrees along the circumferential direction of the fixed support ring.
Preferably, the fixing support ring is composed of galvanized steel.
Preferably, the through hole penetrates through the ventilation duct.
The utility model has the advantages that:
the utility model discloses a contain the galvanized steel ring who takes the fan in former dryer cloth air pipe embeds, utilize in the pipeline that the air exhauster formed and the difference in pipeline external pressure to rotate the fan, make the tunnel intermediate position also can possess good ventilation effect, the local ventilation condition that the tunnel ventilation effect only exists ventilation pipe end department (construction face or shield structure machine department) in the past has been changed, the air circulation in the tunnel has been strengthened, the air quality in the tunnel has been improved, the harmful gas concentration in the tunnel has been reduced, thereby the construction environment in the tunnel has been greatly promoted;
drawings
Fig. 1 is a schematic view of the overall structure provided by the present invention;
fig. 2 is an enlarged view of a point a in fig. 1 according to the present invention;
fig. 3 is a side view provided by the present invention.
In the figure: 1 ventilating duct, 2 fan, 3 fixed support ring, 4 through-holes.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Embodiment 1, refer to fig. 1-3, the utility model provides a pair of improve device of tunnel ventilation effect, including air pipe 1, 1 outside of air pipe is equipped with fixed subassembly, fixed subassembly includes fixed support ring 3, fixed support ring 3 is fixed to be inlayed and is located 1 outside of air pipe, fixed support ring 3 has seted up a plurality of through-holes 4 along 1 circumferencial direction of air pipe is fixed, and is a plurality of 4 inboard all fixed the inlaying of through-hole is equipped with fan 2.
Further, air pipe 1 adopts the air cylinder cloth, air pipe 1 diameter sets up to 800 mm.
Further, the width of the fixed support ring 3 is set to 300mm, the inner diameter of the fixed support ring 3 is set to 740mm, the wall thickness of the fixed support ring 3 is set to 30mm, and the fixed support ring 3 is arranged at an interval of 20m along the length direction of the ventilation pipeline 1.
Further, the diameter of the through holes 4 is set to 150mm, the thickness of the through holes 4 is set to 30mm, and the through holes 4 are arranged one by one at intervals of 72 ° in the circumferential direction of the fixed support ring 3.
Further, the stationary support ring 3 is composed of galvanized steel.
Further, the through hole 4 penetrates the ventilation duct 1.
The utility model discloses a use as follows: when the utility model is used, the fan 2 is fixedly arranged in the fixed support ring 3, the fixed support ring 3 consisting of galvanized steel is erected in the tunnel, the ventilating duct 1 made of the air duct cloth passes through the fixed support ring 3, the through hole 4 with the same diameter is trimmed on the position of the fan 2 outside the fixed support ring 3, then the fan 2 is rotated by utilizing the difference between the internal pressure of the ventilating duct 1 formed by the hole exhaust fan and the external pressure of the ventilating duct 1, so that the middle position of the tunnel can have good ventilation effect, the local ventilation condition that the ventilation effect of the prior tunnel only exists at the construction palm surface at the end of the ventilating duct or at the shield machine is changed, the air circulation in the tunnel is enhanced, the air quality in the tunnel is improved, the harmful gas concentration of the tunnel is reduced, thereby the construction environment in the tunnel is greatly improved, and fresh air is supplied to the interior of the engineering, firstly, harmful substances such as harmful gas, steam, dust, gunpowder smoke and the like can be eliminated, secondly, the temperature, the relative humidity and the flow rate of air in the engineering reach the specified standards, thirdly, military and civil air defense engineering require the 'three-prevention' ventilation function of nuclear weapon prevention, chemical weapon prevention and bacterial weapon prevention, after good ventilation, the maximum allowable concentration of the harmful substances in air of tunnels and underground engineering, the temperature, the relative humidity and the flow rate of air all reach the national sanitary standard, if the sanitary standard is lacked, according to the specified standard of relevant design specifications, the first railway tunnel requires that the concentration of carbon monoxide in the air is not more than 30 mg/m, the concentration of nitrogen oxide (converted into nitrogen dioxide) is not more than 8 mg/m, the concentration of dust containing more than 10% of free silica is not more than 2 mg/m, and the second road tunnel ventilation aims at eliminating the carbon monoxide and smoke in automobile exhaust smoke, the third underground railway for ensuring the safe sight distance and the driving comfort of a driver mainly considers that the stations and the intervals have proper air temperature and the concentration of carbon dioxide is controlled, the fourth underground construction engineering respectively requires different air temperature, relative humidity, flow rate, the highest allowable concentration of harmful substances in the air, fresh air quantity and the like according to the importance and the use property of the fourth underground construction engineering, the concentration of the carbon dioxide is generally used as a mark for measuring the quality of the internal air, a fixed support ring 3 is erected outside a ventilation pipeline 1, through holes 4 are formed in one sides of the ventilation pipeline 1 and the fixed support ring 3, and the ventilation effect in the ventilation pipeline 1 is improved through the rotation of a fan 2 inside the through holes 4.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (6)
1. The utility model provides an improve device of tunnel ventilation effect, includes air pipe (1), its characterized in that: air pipe (1) outside is equipped with fixed subassembly, fixed subassembly is including fixed support ring (3), fixed support ring (3) are fixed to be inlayed and are located air pipe (1) outside, fixed support ring (3) are fixed along air pipe (1) circumferencial direction and have been seted up a plurality of through-holes (4), and are a plurality of through-hole (4) inboard is all fixed to be inlayed and is equipped with fan (2).
2. The apparatus for improving ventilation effect of tunnel according to claim 1, wherein: the ventilation pipeline (1) adopts air duct cloth, and the diameter of the ventilation pipeline (1) is set to be 800 mm.
3. The apparatus for improving ventilation effect of tunnel according to claim 1, wherein: the width of the fixed support ring (3) is set to 300mm, the inner diameter of the fixed support ring (3) is set to 740mm, the wall thickness of the fixed support ring (3) is set to 30mm, and one fixed support ring (3) is arranged at an interval of 20m along the length direction of the ventilation pipeline (1).
4. The apparatus for improving ventilation effect of tunnel according to claim 1, wherein: the diameter of the through hole (4) is set to be 150mm, the thickness of the through hole (4) is set to be 30mm, and the through hole (4) is arranged one at every 72 degrees along the circumferential direction of the fixed support ring (3).
5. The apparatus for improving ventilation effect of tunnel according to claim 1, wherein: the fixed support ring (3) is made of galvanized steel.
6. The apparatus for improving ventilation effect of tunnel according to claim 1, wherein: the through hole (4) penetrates through the ventilation pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472169.2U CN214697914U (en) | 2021-03-04 | 2021-03-04 | Device for improving ventilation effect of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120472169.2U CN214697914U (en) | 2021-03-04 | 2021-03-04 | Device for improving ventilation effect of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214697914U true CN214697914U (en) | 2021-11-12 |
Family
ID=78568567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120472169.2U Expired - Fee Related CN214697914U (en) | 2021-03-04 | 2021-03-04 | Device for improving ventilation effect of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214697914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971816A (en) * | 2023-09-11 | 2023-10-31 | 湖南天晟源消防科技有限公司 | Tunnel construction ventilation unit |
-
2021
- 2021-03-04 CN CN202120472169.2U patent/CN214697914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971816A (en) * | 2023-09-11 | 2023-10-31 | 湖南天晟源消防科技有限公司 | Tunnel construction ventilation unit |
| CN116971816B (en) * | 2023-09-11 | 2024-03-29 | 湖南天晟源消防科技有限公司 | Tunnel construction ventilation unit |
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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: 20211112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |