CN105240041A - Ventilating smoke dissipating system used for underground cavern construction of large hydropower station - Google Patents
Ventilating smoke dissipating system used for underground cavern construction of large hydropower station Download PDFInfo
- Publication number
- CN105240041A CN105240041A CN201510788741.5A CN201510788741A CN105240041A CN 105240041 A CN105240041 A CN 105240041A CN 201510788741 A CN201510788741 A CN 201510788741A CN 105240041 A CN105240041 A CN 105240041A
- Authority
- CN
- China
- Prior art keywords
- air
- exhaust
- construction
- hydropower station
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 37
- 239000000779 smoke Substances 0.000 title abstract 2
- 238000009423 ventilation Methods 0.000 claims description 19
- 235000019504 cigarettes Nutrition 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000005273 aeration Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Classifications
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- 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
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
-
- 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
-
- 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
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a ventilating smoke dissipating system used for underground cavern construction of a large hydropower station. The system comprises an underground cavern, wherein one end of the underground cavern is an air inlet, the other end is an air outlet, a construction adit is formed at one end of the air inlet of the underground cavern, an air inlet pipeline is laid on the top of the construction adit and is obliquely arranged in the construction adit, an air supply machine is arranged at one end of the air inlet pipeline, the air supply machine is arranged at the hole of the construction adit, an exhaust outlet is formed in the top wall of one end of the air outlet of the underground cavern, an exhaust shaft is arranged on the exhaust outlet, the upper end of the exhaust shaft is connected with an exhaust footrill, the exhaust footrill is provided with a wind stop wall and an exhaust fan at a position connected with the exhaust shaft. The system has the beneficial effects of greatly improving the air quality of a working face of each large underground cavern, creating a good construction working environment and ensuring construction quality and construction safety.
Description
Technical field
The present invention relates to the super-huge Cavity Construction phase ventilates loose cigarette technical field, is specifically related to a kind of ventilation for the large hydropower station Cavity Construction phase and falls apart cigarette system.
Background technology
Hydropower Station Underground tunnel is the complicated cavity group comprising numerous caverns such as main building, transformer chamber, diversion tunnel, tailrace tunnel, bus tunnel, access tunnel composition, each cavern is crisscross, arrange intensive, construction link is coordinated mutually, influence each other, in each cavern con struction process, due to a large amount of pollutants can be produced, if discharged not in time in boring, explosion, the operation such as to slag tap, once exceed control criterion, great potential safety hazard will be caused to constructor.
In prior art, in Hydropower Station Underground cavern con struction process, the mode of the loose cigarette of ventilation mainly contains the outside air draft draft type of independent blower fan, only forced ventilation mode etc., the ventilation being arranged on main building can also be adopted to fall apart cigarette system: two exhaust fans are installed entering top, hole central authorities in factory's access tunnel simultaneously, airshaft is arranged at main building crown, exhaust blower is arranged in airshaft, but because all more complicated arranged by underground chamber, boring, the operations such as explosion are frequent, the loose cigarette of vertical shaft stack effect ventilation is limited in one's ability, large underground hole group often horizontal and vertical buried depth is all darker, permanent exhaust air shaft can not be formed at short notice, construction period exhaust effect is poor, the such as above-mentioned ventilation being arranged on main building is fallen apart cigarette system, although installed two pull-out type exhaust blowers in crown central authorities, increase contaminated air and discharge ability, but in the air quality of the whole construction of hydropower phase scope of operation or unsatisfactory.
Summary of the invention
There is the deficiency of loose cigarette poor effect of ventilating in the ventilation that instant invention overcomes in prior art in Hydropower Station Underground cavern con struction process cigarette system of faling apart, there is provided one to make Cavity Construction phase work plane air quality good, the ventilation for the large hydropower station Cavity Construction phase greatly improving field working conditions is fallen apart cigarette system.
For achieving the above object, the present invention is by the following technical solutions:
A kind of ventilation for the large hydropower station Cavity Construction phase is fallen apart cigarette system, it comprises underground chamber (excavated surface), working tunnel is provided with in one end of described underground chamber air intake, described working tunnel top is equipped with intake stack, and this intake stack is inclined in working tunnel, one end of described intake stack is provided with for blower fan, and described air feed machine is positioned at the hole of working tunnel, the roof of one end of described underground chamber air outlet offers air outlet, described air outlet is provided with exhaust air shaft, described exhaust air shaft upper end is connected with air draft adit, described air draft adit is provided with windbreak and exhaust blower in the position that it is connected with exhaust air shaft.
Further technical scheme is, described blower fan and the exhaust blower of supplying is frequency conversion type blower fan.
Further technical scheme is, the diameter of described exhaust air shaft is 3.5m.
Further technical scheme is, described underground chamber comprises main building, transformer chamber, draft tube Emergency Gate room, down stream surge-chamber, diversion tunnel, tailwater tunnel or grouting collector drain.
Ventilation for the large hydropower station Cavity Construction phase provided by the invention cigarette system of faling apart can be installed in large hydropower station each underground chamber (such as, main building, transformer chamber, draft tube Emergency Gate room, down stream surge-chamber, diversion tunnel, tailwater tunnel etc.) in, the contaminated air produced in each Cavity Construction process is got rid of in time, for staff provides a good working environment, reduce potential safety hazard.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention substantially improves the air quality of each large underground chamber work plane, creates good construction working environment, guarantees construction quality and construction safety.
Accompanying drawing explanation
Fig. 1 is that the ventilation for the large hydropower station Cavity Construction phase of an embodiment of the present invention is fallen apart the structure chart of cigarette system.
As shown in Figure 1, wherein corresponding Reference numeral name is called:
1, underground chamber, 2 working tunnel, 3 for blower fan, 4 intake stacks, 5 fresh airs, 6 foul atmospheres, 7 windbreaks, 8 exhaust blowers, 9 air draft adits, 10 exhaust air shafts.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further elaborated.
A kind of ventilation for the large hydropower station Cavity Construction phase is as shown in Figure 1 fallen apart cigarette system, it comprises underground chamber 1, described underground chamber 1 one end is air intake, the other end is air outlet, working tunnel 2 is provided with in one end of underground chamber 1 air intake, working tunnel 2 top is equipped with intake stack 4, and this intake stack 4 is inclined in working tunnel 2, one end of intake stack 4 is provided with for blower fan 3, and the hole of working tunnel 2 is positioned at for blower fan 3, the roof of one end of underground chamber 1 air outlet offers air outlet, air outlet is provided with exhaust air shaft 10, exhaust air shaft 10 upper end is connected with air draft adit 9, air draft adit 9 is provided with windbreak 7 and exhaust blower 8 in the position that it is connected with exhaust air shaft 10.
Air inlet fan 3 is arranged at working tunnel 2 hole in the present embodiment, by work plane supply from intake stack 4 to underground chamber without pollute fresh air 5, fresh air 5 is through physical activity district, work plane flows, then after mixing with the foul atmosphere produced in construction works, because the gas produced in blasting process has heat, so the air at this moment mixed just has heat, turbulent region will be produced, there is hot-fluid stratification, there are two visibly different regions of air themperature occasion concentration field feature, i.e. bottom one-way flow district and turbulent mixture air zone, top, one-way flow district, bottom air themperature is lower, pollutant levels are low, turbulent mixture air zone, top temperature is higher, pollutant levels are close to saturation state, at this moment because the fresh air 5 outside hole constantly imports underground chamber far away, blast makes the foul atmosphere of turbulent mixture air zone, top away from work plane, because human body and construction machinery are all in the one-way flow district, bottom of lower height, so air quality is better, therefore replacement aeration can ensure scope of operation air quality effectively, stand-by period after minimizing explosion, reduce underground chamber temperature and humidity, improve scope of operation efficiency of construction,
Arranged in conjunction with working tunnel 2 by intake stack 4 simultaneously and can reduce air feed circuit Distance geometry cost, working tunnel 2 can ensure that each large underground chamber 1 is slagged tap and Construction traffic is come in and gone out;
Underground chamber 1 top adopts exhaust air shaft 10 to be communicated with the air draft adit 9 on top, by stack effect, farthest utilizes natural ventilation to be discharged by the contaminated air produced in underground chamber 1 work progress;
Exhaust air shaft 10 top and air draft adit 9 UNICOM, arrange windbreak 7 and install powerful exhaust blower 8, can be expelled to outside hole by contaminated air through air draft adit 9 in air draft adit 9, forms ventilation circulation system, ensures work plane air quality.
According to one embodiment of present invention, described blower fan 3 exhaust blower 8 that supplies is frequency conversion type, and the diameter of exhaust air shaft 10 is 3.5m.
According to one embodiment of present invention, underground chamber 1 comprises main building, transformer chamber, draft tube Emergency Gate room, down stream surge-chamber, diversion tunnel, tailwater tunnel or grouting collector drain.
Present invention achieves and be separated into air draft, be arranged in hole for blower fan and get wind, intake stack is in conjunction with layout of construction drift, and each underground chamber top layout exhaust air shaft, with air draft adit UNICOM, exhaust air shaft mouth arranges high-power exhaust blower and windbreak.
Above detailed description of the invention is described in detail to essence of the present invention; but can not limit protection scope of the present invention; apparently; under enlightenment of the present invention; the art those of ordinary skill can also carry out many improvement and modification; it should be noted that these improve and modify all to drop within claims of the present invention.
Claims (4)
1. the ventilation for the large hydropower station Cavity Construction phase is fallen apart cigarette system, it is characterized in that, it comprises underground chamber (1), described underground chamber (1) one end is air intake, the other end is air outlet, working tunnel (2) is provided with in one end of described underground chamber (1) air intake, described working tunnel (2) top is equipped with intake stack (4), and this intake stack (4) is inclined in working tunnel (2), one end of described intake stack (4) is provided with for blower fan (3), and the described hole being positioned at working tunnel (2) for blower fan (3), the roof of one end of described underground chamber (1) air outlet offers air outlet, described air outlet is provided with exhaust air shaft (10), described exhaust air shaft (10) upper end is connected with air draft adit (9), described air draft adit (9) is provided with windbreak (7) and exhaust blower (8) in the position that it is connected with exhaust air shaft (10).
2. the ventilation for the large hydropower station Cavity Construction phase according to claim 1 is fallen apart cigarette system, it is characterized in that, describedly all adopts frequency conversion type blower fan for blower fan (3) and exhaust blower (8).
3. the ventilation for the large hydropower station Cavity Construction phase according to claim 1 is fallen apart cigarette system, and it is characterized in that, the diameter of described exhaust air shaft (10) is 3.5m.
4. the ventilation for the large hydropower station Cavity Construction phase according to claim 1 is fallen apart cigarette system, it is characterized in that, described underground chamber (1) comprises main building, transformer chamber, draft tube Emergency Gate room, down stream surge-chamber, diversion tunnel, tailwater tunnel or grouting collector drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788741.5A CN105240041A (en) | 2015-11-17 | 2015-11-17 | Ventilating smoke dissipating system used for underground cavern construction of large hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788741.5A CN105240041A (en) | 2015-11-17 | 2015-11-17 | Ventilating smoke dissipating system used for underground cavern construction of large hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105240041A true CN105240041A (en) | 2016-01-13 |
Family
ID=55037832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510788741.5A Pending CN105240041A (en) | 2015-11-17 | 2015-11-17 | Ventilating smoke dissipating system used for underground cavern construction of large hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105240041A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398042A (en) * | 2019-07-24 | 2019-11-01 | 同济大学建筑设计研究院(集团)有限公司 | A kind of ventilation device and its control method for cutting down elevator shuttle vertical shaft stack effect |
| WO2020062878A1 (en) * | 2018-09-30 | 2020-04-02 | 上海市政工程设计研究总院（集团）有限公司 | Ductless ventilation method applicable to underground water treatment structure |
| CN111140269A (en) * | 2019-12-28 | 2020-05-12 | 河北钢铁集团矿业有限公司 | Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period |
| CN111425237A (en) * | 2020-03-31 | 2020-07-17 | 中铁五局集团有限公司 | Staged ventilation method based on complex cavern group construction |
| CN113216561A (en) * | 2021-04-30 | 2021-08-06 | 中国化学工程第十四建设有限公司 | Small-section reinforced concrete air duct construction technology |
| CN114483145A (en) * | 2022-02-14 | 2022-05-13 | 河南新华五岳抽水蓄能发电有限公司 | Large underground engineering cavern construction ventilation system and ventilation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940576A1 (en) * | 1998-04-06 | 1999-09-08 | Ihrenberger, Adolf, Dipl.-Ing. (FH) | Waterwheel |
| KR100605122B1 (en) * | 2005-10-26 | 2006-07-28 | 박재홍 | Equipment hydroelectric powergeneration using rotation drum many |
| CN102505671A (en) * | 2011-11-18 | 2012-06-20 | 中国水电顾问集团成都勘测设计研究院 | Overhead maintenance passage for diversion tunnels |
| CN202323897U (en) * | 2011-11-18 | 2012-07-11 | 中国水电顾问集团成都勘测设计研究院 | Inspection passage for multiple diversion tunnels |
| CN205101018U (en) * | 2015-11-17 | 2016-03-23 | 中国长江三峡集团公司 | A cigarette system that looses of ventilating for large hydropower station underground cavern construction time |
-
2015
- 2015-11-17 CN CN201510788741.5A patent/CN105240041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0940576A1 (en) * | 1998-04-06 | 1999-09-08 | Ihrenberger, Adolf, Dipl.-Ing. (FH) | Waterwheel |
| KR100605122B1 (en) * | 2005-10-26 | 2006-07-28 | 박재홍 | Equipment hydroelectric powergeneration using rotation drum many |
| CN102505671A (en) * | 2011-11-18 | 2012-06-20 | 中国水电顾问集团成都勘测设计研究院 | Overhead maintenance passage for diversion tunnels |
| CN202323897U (en) * | 2011-11-18 | 2012-07-11 | 中国水电顾问集团成都勘测设计研究院 | Inspection passage for multiple diversion tunnels |
| CN205101018U (en) * | 2015-11-17 | 2016-03-23 | 中国长江三峡集团公司 | A cigarette system that looses of ventilating for large hydropower station underground cavern construction time |
Non-Patent Citations (1)
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| 徐蒯东等: "白鹤滩水电站地下洞室群通风方案", 《暖通空调》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020062878A1 (en) * | 2018-09-30 | 2020-04-02 | 上海市政工程设计研究总院（集团）有限公司 | Ductless ventilation method applicable to underground water treatment structure |
| CN110398042A (en) * | 2019-07-24 | 2019-11-01 | 同济大学建筑设计研究院(集团)有限公司 | A kind of ventilation device and its control method for cutting down elevator shuttle vertical shaft stack effect |
| CN111140269A (en) * | 2019-12-28 | 2020-05-12 | 河北钢铁集团矿业有限公司 | Multi-working-face single-head tunneling ventilation system for metal underground mine infrastructure period |
| CN111425237A (en) * | 2020-03-31 | 2020-07-17 | 中铁五局集团有限公司 | Staged ventilation method based on complex cavern group construction |
| CN113216561A (en) * | 2021-04-30 | 2021-08-06 | 中国化学工程第十四建设有限公司 | Small-section reinforced concrete air duct construction technology |
| CN113216561B (en) * | 2021-04-30 | 2023-02-28 | 中国化学工程第十四建设有限公司 | Construction technology of small-section reinforced concrete air duct |
| CN114483145A (en) * | 2022-02-14 | 2022-05-13 | 河南新华五岳抽水蓄能发电有限公司 | Large underground engineering cavern construction ventilation system and ventilation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |