CN108843368A - A kind of gas integration monitoring tapping equipment for tunnel cavern - Google Patents
A kind of gas integration monitoring tapping equipment for tunnel cavern Download PDFInfo
- Publication number
- CN108843368A CN108843368A CN201810956364.5A CN201810956364A CN108843368A CN 108843368 A CN108843368 A CN 108843368A CN 201810956364 A CN201810956364 A CN 201810956364A CN 108843368 A CN108843368 A CN 108843368A
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- China
- Prior art keywords
- tunnel
- cavern
- portal
- gas
- exhausting duct
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 230000010354 integration Effects 0.000 title claims abstract description 15
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000003032 molecular docking Methods 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
A kind of gas integration monitoring tapping equipment for tunnel cavern, with gas density in Monitoring and forecasting system in real-time Tunnel room and is automatically diluted gas density, effectively guarantees the indoor safety of Tunnel.Including the tunnel cavern for being set to tunnel structure side and being connected with main tunnel, the inlet of tunnel cavern is provided with cavern's portal.Porous air-exhausting duct is arranged with inherent tunnel room top in cavern's portal, and the drainage tube docked with porous air-exhausting duct is arranged in addition, exhaust fan is arranged between porous air-exhausting duct and drainage tube for cavern's portal；Cavern's portal is popped one's head in setting gas concentration monitoring longitudinally spaced on the roof of inherent tunnel room, the gas density signal of each gas concentration monitoring probe acquisition is sent to controller of fan, by controller of fan control exhaust fan starting operating or shuts down.
Description
Technical field
The present invention relates to tunnel, in particular to a kind of gas integration for tunnel cavern monitors tapping equipment.
Background technique
Gas is always a key factor for threatening engineering safety, either in tunnel construction and operation process
In, since the case where gas explosion occur commonplace for mismanagement.China's tunnel construction technology be developed to currently,
Tunnel gas processing technique during operation gradually tends to be perfect, but in some placement tunnel machine equipment or rescue articles
Tunnel part cavern, due to its occupied space is small, quantity is few and along tunnel be distributed more dispersed, the people of the part gas
Work processing is more many and diverse, is easy artificially to be ignored.In addition, common tunnel cavern does not have air permeability, air stream in cavern generally
The general character is very poor, and the case where local gas concentration increases is easy to appear in the cavern of gas tunnel, if placed in Tunnel room
Be working condition mechanical equipment, this situation is more easier to bring important security risk to the operation in tunnel.
Therefore, it is necessary to a kind of new devices for tunnel cavern gas integration monitoring discharge to solve gas tunnel hole
Indoor drawing-off gas problem replaces complicated manual operation, guarantee watt in such a way that real-time intelligent monitors gas and discharges
Safety during the operation of this tunnel.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of gas integration monitoring discharge dresses for tunnel cavern
It sets, with gas density in Monitoring and forecasting system in real-time Tunnel room and gas density is diluted automatically, effectively guarantees Tunnel
Indoor safety.
The technical solution adopted by the present invention to solve the technical problems is as follows：
A kind of gas integration for tunnel cavern of the invention monitors tapping equipment, including is set to tunnel structure one
The side and tunnel cavern being connected with main tunnel, the inlet of tunnel cavern are provided with cavern's portal, it is characterized in that：The cavern
Porous air-exhausting duct is arranged with inherent tunnel room top in portal, and the drainage docked with porous air-exhausting duct is arranged in cavern's portal in addition
Pipe, is arranged exhaust fan between porous air-exhausting duct and drainage tube；Cavern's portal on the roof of inherent tunnel room along longitudinal direction
Interval setting gas concentration monitoring is popped one's head in, and the gas density signal of each gas concentration monitoring probe acquisition is sent to air-blower control
Device by controller of fan control exhaust fan starting operating or shuts down.
Longitudinally spaced setting stomata group on the porous air draft tube wall, each stomata group include multiple circumferentially spaced-apart settings
Stomata；To the distal end of porous air-exhausting duct by cavern's portal, the spacing between adjacent air holes group is successively successively decreased.
The beneficial effects are mainly reflected as follows following aspects：
1, gas concentration monitoring device gas density and can carry out drawing-off gas in automatic early-warning cavern, realize tunnel
The integrated monitoring of gas is handled, and is saved resource also and be can effectively ensure that gas density is in safe model in Tunnel room
It encloses；
2, the stomata in tunnel cavern top air-exhausting duct according to interflow distributor pipe rule be arranged, can make all stomatas into
The speed for entering methane gas is essentially identical, is effectively discharged out the gas for concentrating on tunnel cavern top；
3, multiple gas density probes are arranged in tunnel cavern top, are effectively guaranteed effective prison of gas density in cavern
Control, gas concentration monitoring device can effectively guarantee the monitoring of wind speed in air hose the mass rate of emission of methane gas, guarantee
Effectively carry out to gas drawing station；
4, the gas of tunnel cavern discharge is diluted by main permanent ventilation of tunnel, efficiently utilizes the logical of main tunnel
Wind channel.
Detailed description of the invention
This specification includes following three width attached drawing：
Fig. 1 is a kind of cross-section diagram of the gas integration monitoring tapping equipment for tunnel cavern of the present invention；
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 3 is that a kind of gas integration for tunnel cavern of the present invention monitors porous air-exhausting duct in tapping equipment and draws
The structure chart of flow tube.
Component and corresponding label are shown in figure：It is tunnel structure 10, tunnel cavern 20, cavern's portal 21, air inlet 22, more
Hole air-exhausting duct 30, drainage tube 31, exhaust fan 32, gas concentration monitoring probe 33, controller of fan 34.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to Figures 1 and 2, a kind of gas integration for tunnel cavern of the invention monitors tapping equipment, including sets
The tunnel cavern 20 for being placed in 10 side of tunnel structure and being connected with main tunnel, the inlet of tunnel cavern 20 are provided with Dong Shidong
Door 21.Porous air-exhausting duct 30 is arranged with inherent 20 top of tunnel room in cavern's portal 21, be arranged other than cavern's portal 21 with
Exhaust fan 32 is arranged in the drainage tube 31 that porous air-exhausting duct 30 docks between porous air-exhausting duct 30 and drainage tube 31.The Dong Shidong
Door 21 with setting gas concentration monitoring longitudinally spaced on the roof of inherent tunnel room 20 probe 33, visit by each gas concentration monitoring
It is first 33 acquisition gas density signals be sent to controller of fan 34, by controller of fan 34 control exhaust fan 32 starting operating or
Person shuts down.Gas density and gas density can be diluted automatically in Monitoring and forecasting system in real-time Tunnel room, effectively be protected
Demonstrate,prove the indoor safety of Tunnel.
Referring to Fig.1, during tunnel operation, methane gas is gradually concentrated in 20 top of tunnel cavern, and exhaust fan 32 starts
Negative pressure is formed after operating in tunnel cavern 20, stomata of the 20 internal upper part gas of tunnel cavern through being distributed on porous air-exhausting duct 30 is equal
It is even to enter in porous air-exhausting duct 30, it then passes through drainage tube 31 and is emitted into tunnel structure 10, carried out by main permanent ventilation of tunnel
Gas dilution, is consequently formed an effective gas dilution ventilation road.The gas density prison being mounted on 20 roof of tunnel cavern
The gas on 33 pairs of caverns of probing head top carries out gas concentration monitoring, when watt that more than two gas concentration monitorings probe 33 measures
When this concentration is more than 0.5%, controller of fan 34 controls the starting operating of exhaust fan 32 and is aerated operation.The operation of exhaust fan 32
It forms wind speed and negative pressure is calculated by tunnel gas geologic information, when gas density drops to 0.3% or less, can stop
Only ventilating.Controller of fan 34 connects with main tunnel main control computer, does not stop shape when there is blower long working
When state, early warning should be carried out and maintenance personnel is sent to carry out inspection processing to corresponding tunnel cavern 20
Referring to Figure 1 and Figure 3, longitudinally spaced setting stomata group on 30 tube wall of porous air-exhausting duct, each stomata group include
The stomata of multiple circumferentially spaced-apart settings.To the distal end of porous air-exhausting duct 30 by cavern's portal 21, between adjacent air holes group between
Away from successively successively decreasing, i.e., stomata is arranged according to interflow distributor pipe calculation, to meet the 20 equal energy in all positions of tunnel cavern
Enough carry out effective gas exchanges.
Referring to Figures 1 and 2, air inlet 22 is arranged in the lower, transverse interval of cavern's portal 21, and covering is fixedly installed
The steel fabric sheet of air inlet 22, to intercept the sundries that can be had an impact to ventilation.The distal end of the drainage tube 31 is fixed on tunnel
In structure 10, the proximal end of drainage tube 31 and cavern's portal 21 apart from main tunnel at least 5m, prevent because 31 outlet port of drainage tube away from
Closely circulation is formed excessively from air inlet 22 and cannot effectively evacuate methane gas.
The above is a kind of gas integration monitoring tapping equipment for tunnel cavern of the present invention that explains through diagrams
Some principles, be not intended to for the present invention to be confined to shown in and the specific structure and the scope of application in, therefore it is all
The corresponding modification that may be utilized and equivalent belong to the applied the scope of the patents of the present invention.
Claims (4)
1. a kind of gas integration for tunnel cavern monitors tapping equipment, including be set to tunnel structure (10) side and with
The tunnel cavern (20) that main tunnel is connected, the inlet of tunnel cavern (20) are provided with cavern's portal (21), it is characterized in that：Institute
State cavern's portal (21) and porous air-exhausting duct (30) be arranged with inherent tunnel room (20) top, be arranged other than cavern's portal (21) with
The drainage tube (31) of porous air-exhausting duct (30) docking, is arranged exhaust fan (32) between porous air-exhausting duct (30) and drainage tube (31)；
Cavern's portal (21) pops one's head in (33) with setting gas concentration monitoring longitudinally spaced on the roof of inherent tunnel room (20),
The gas density signal of each gas concentration monitoring probe (33) acquisition is sent to controller of fan (34), by controller of fan (34)
Control exhaust fan (32) starting operating shuts down.
2. a kind of gas integration for tunnel cavern as described in claim 1 monitors tapping equipment, it is characterized in that：It is described
Longitudinally spaced setting stomata group on porous air-exhausting duct (30) tube wall, each stomata group include the stomata of multiple circumferentially spaced-apart settings；
To the distal end of porous air-exhausting duct (30) by cavern's portal (21), the spacing between adjacent air holes group is successively successively decreased.
3. a kind of gas integration for tunnel cavern as described in claim 1 monitors tapping equipment, it is characterized in that：It is described
The distal end of drainage tube (31) is fixed on tunnel structure (10), and the proximal end of drainage tube (31) and cavern's portal (21) are apart from main tunnel
At least 5m.
4. a kind of gas integration for tunnel cavern as described in claim 1 monitors tapping equipment, it is characterized in that：It is described
Air inlet (22) are arranged in the lower, transverse interval of cavern's portal (21), and the steel fabric sheet of covering air inlet (22) is fixedly installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810956364.5A CN108843368A (en) | 2018-08-21 | 2018-08-21 | A kind of gas integration monitoring tapping equipment for tunnel cavern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810956364.5A CN108843368A (en) | 2018-08-21 | 2018-08-21 | A kind of gas integration monitoring tapping equipment for tunnel cavern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843368A true CN108843368A (en) | 2018-11-20 |
Family
ID=64189829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810956364.5A Pending CN108843368A (en) | 2018-08-21 | 2018-08-21 | A kind of gas integration monitoring tapping equipment for tunnel cavern |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843368A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185496A (en) * | 2019-06-28 | 2019-08-30 | 中交路桥建设有限公司 | Tunnel gas monitoring and alarming system |
| CN111219203A (en) * | 2020-03-19 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Gas discharge system of supplementary gallery |
| CN111396127A (en) * | 2020-02-27 | 2020-07-10 | 中铁十九局集团第三工程有限公司 | Intelligent tunnel gas monitoring and processing device and control system thereof |
| CN112065491A (en) * | 2020-09-21 | 2020-12-11 | 中铁十八局集团有限公司 | Tunnel construction ventilation method |
Citations (6)
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|---|---|---|---|---|
| CN101519979A (en) * | 2009-04-09 | 2009-09-02 | 中铁二局股份有限公司 | Tunnel gas monitoring system |
| CN103696806A (en) * | 2013-12-19 | 2014-04-02 | 中铁八局集团有限公司 | Gas tunnel control method and system thereof |
| JP2014070382A (en) * | 2012-09-28 | 2014-04-21 | Panasonic Corp | Tunnel ventilation control device |
| CN106930781A (en) * | 2017-03-29 | 2017-07-07 | 中铁十七局集团第三工程有限公司 | A kind of gas tunnel method of ventilation and its structure |
| CN206737943U (en) * | 2017-04-22 | 2017-12-12 | 南城县润华工贸有限公司 | A kind of colliery operation ventilation unit |
| CN107542496A (en) * | 2017-08-03 | 2018-01-05 | 大连理工大学 | A kind of tunnel gas based on Internet of Things protrudes early warning and exhaust system |
-
2018
- 2018-08-21 CN CN201810956364.5A patent/CN108843368A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519979A (en) * | 2009-04-09 | 2009-09-02 | 中铁二局股份有限公司 | Tunnel gas monitoring system |
| JP2014070382A (en) * | 2012-09-28 | 2014-04-21 | Panasonic Corp | Tunnel ventilation control device |
| CN103696806A (en) * | 2013-12-19 | 2014-04-02 | 中铁八局集团有限公司 | Gas tunnel control method and system thereof |
| CN106930781A (en) * | 2017-03-29 | 2017-07-07 | 中铁十七局集团第三工程有限公司 | A kind of gas tunnel method of ventilation and its structure |
| CN206737943U (en) * | 2017-04-22 | 2017-12-12 | 南城县润华工贸有限公司 | A kind of colliery operation ventilation unit |
| CN107542496A (en) * | 2017-08-03 | 2018-01-05 | 大连理工大学 | A kind of tunnel gas based on Internet of Things protrudes early warning and exhaust system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185496A (en) * | 2019-06-28 | 2019-08-30 | 中交路桥建设有限公司 | Tunnel gas monitoring and alarming system |
| CN111396127A (en) * | 2020-02-27 | 2020-07-10 | 中铁十九局集团第三工程有限公司 | Intelligent tunnel gas monitoring and processing device and control system thereof |
| CN111219203A (en) * | 2020-03-19 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Gas discharge system of supplementary gallery |
| CN112065491A (en) * | 2020-09-21 | 2020-12-11 | 中铁十八局集团有限公司 | Tunnel construction ventilation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181120 |