CN109989780A - A kind of plateau tunnel ventilation pressurizing device - Google Patents
A kind of plateau tunnel ventilation pressurizing device Download PDFInfo
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- CN109989780A CN109989780A CN201910375269.0A CN201910375269A CN109989780A CN 109989780 A CN109989780 A CN 109989780A CN 201910375269 A CN201910375269 A CN 201910375269A CN 109989780 A CN109989780 A CN 109989780A
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- chamber
- hole
- pressure
- back cavity
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- 238000009423 ventilation Methods 0.000 title claims abstract description 32
- 238000005192 partition Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000005183 dynamical system Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000006837 decompression Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 208000009205 Tinnitus Diseases 0.000 description 1
- 208000008445 altitude sickness Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000886 tinnitus Toxicity 0.000 description 1
- 230000005641 tunneling Effects 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
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- 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
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
-
- 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
- E21F17/18—Special adaptations of signalling or alarm devices
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)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Control Of Fluid Pressure (AREA)
- Ventilation (AREA)
Abstract
The present invention proposes a kind of plateau tunnel ventilation pressurizing device, including sealing system in hole, sealing system includes ante-chamber partition panel in the hole, ante-chamber partition panel is equipped with ante-chamber telescopic device, ante-chamber telescopic device and ante-chamber are tightly connected, and ante-chamber sealing cooperates with tunnel, and the front of ante-chamber partition panel forms ante-chamber, pressurization dynamical system is connected to pressure regulating system, and pressure regulating system and wind-exchanging system extend in ante-chamber.Advantages of the present invention: guarantee that ante-chamber constructing tunnel work surface environmental pressure is stabilized to the Plain 1bar(pressure in hole)；Marshaling and personnel, which can be convenient, navigates within ante-chamber in hole, adapter cavity, back cavity in hole；PM2.5 detection device monitors hole endoparticle object concentration in real time in hole, and carries out early warning ventilation operation, guarantees that air is suitble to construction personnel's operation in hole；Ante-chamber in hole, adapter cavity, back cavity is equipped with sound-powered phone, anti-explosion telephone facilitates in hole in hole dispatches.
Description
Technical field
The present invention relates to constructing tunnel equipment, particularly relate to a kind of plateau tunnel ventilation pressurizing device.
Background technique
Sichuan-Tibet railway will start to build on a large scale, since Sichuan-Tibet railroad elevation is normally at 4000 meters or so, atmospheric pressure
About 0.5bar or so is probably the half of Plain atmospheric pressure, and personnel generally have altitude sickness in this height above sea level in-cavity construction, out
The situations such as existing headache, dizziness, dim eyesight, tinnitus, malaise, difficulty in walking, if not being aerated pressurization to construction tunnel, it will
Extreme influence normal construction.
Using plateau tunnel ventilation pressurizing device, the pressure of construction environment in tunnel can be stabilized to the Plain 1bar(pressure
Power), to efficiently construct.
Plateau tunnel ventilation pressurizing device includes back cavity sealing system in ante-chamber and hole in hole, before guarantee is sealed in hole
Chamber；Ante-chamber pressure regulating system in hole guarantees that preceding cavity pressure is 1bar or so in hole；Adapter cavity adds depressurized system, guarantees marshalling
Train and personnel shuttle；Ante-chamber wind-exchanging system in hole, according to PM2.5 concentration and oxygen content in hole, air in real-time update hole；
Communication and lighting system, communication can be convenient in hole and dispatch in time.
Summary of the invention
The problem of present invention proposes a kind of plateau tunnel ventilation pressurizing device, and it is severe to solve altitude environment, influences construction.
The technical scheme of the present invention is realized as follows: sealing system in a kind of plateau tunnel ventilation pressurizing device, including hole
It unites, sealing system includes ante-chamber partition panel in the hole, and ante-chamber partition panel is equipped with ante-chamber telescopic device, ante-chamber telescopic device
It is tightly connected with ante-chamber, ante-chamber sealing cooperates with tunnel, and the front of ante-chamber partition panel forms ante-chamber, dynamical system of pressurizeing and pressure
Regulating system connection, pressure regulating system and wind-exchanging system extend in ante-chamber.
The pressurization dynamical system includes pressure duct, pressure duct by air compressor machine, air accumulator, back cavity air accumulator with
Pressure regulating system connection.
The pressure duct is equipped with cooling driers and filter between air compressor machine and air accumulator.
The pressure duct is equipped with relay air accumulator and relay pneumatics between air accumulator and back cavity air accumulator
Machine.
The pressure regulating system includes ante-chamber channel, and ante-chamber channel is divided into two-way, stretches all the way by single-seat adjusting valve
To ante-chamber, another way is divided into two-way by Pneumatic decompression part, is connected to all the way with single-seat adjusting valve, and another way passes through pressure reducing valve I
It is divided into two-way, is connected to all the way with PI controller, another way is connected to pressure transmitter, and PI controller is connected to single-seat adjusting valve,
PI controller is connected to pressure transmitter, pressure transmitter and the pipeline connection for being located at single-seat adjusting valve rear end part.
The ante-chamber is connected to by safety line with back cavity, and safety line is equipped with safety valve.
The ante-chamber telescopic device is ante-chamber telescopic cylinder.
The wind-exchanging system includes two ventilation ducts, and a ventilation duct is connected to outside ante-chamber and hole by ventilation blower, another ventilation
Pipe is connected to ante-chamber and back cavity.
Detection of Air Quality equipment and hedging storehouse are equipped in the ante-chamber.
Sealing system further includes back cavity partition panel in the hole, and back cavity partition panel is equipped with back cavity telescopic device, back cavity
Telescopic device and back cavity are tightly connected, and back cavity sealing cooperates with tunnel, form transition between ante-chamber partition panel and back cavity partition panel
Chamber, the rear portion of back cavity partition panel form back cavity, pressurization dynamical system and plus-minus pressure system connectivity, depressurized system are added to extend to adapter cavity
It is interior.
Described plus depressurized system includes adapter cavity pipeline, and adapter cavity is extended back by pressure relief assembly to adapter cavity.
The adapter cavity is extended back by two groups of pressure relief assemblies to adapter cavity.
The pressure relief assembly includes check valve, pressure reducing valve and pressure gauge.
The adapter cavity pipeline is after pressure relief assembly using flowmeter.
The adapter cavity is connected to by safety line with back cavity, and safety line is equipped with safety valve.
Threeway balance pipe is equipped in the adapter cavity, pipe one end extends to ante-chamber by ball valve I, and the pipe other end is located at transition
Intracavitary and be equipped with ball valve I, the pipe other end extends to back cavity by ball valve I, the pressure gauge in adapter cavity, the pressure gauge in back cavity.
The back cavity telescopic device is back cavity telescopic cylinder.
Advantages of the present invention: guarantee that ante-chamber constructing tunnel work surface environmental pressure is stabilized to the Plain 1bar(pressure in hole)；
Marshaling and personnel, which can be convenient, navigates within ante-chamber in hole, adapter cavity, back cavity in hole；PM2.5 detection device is supervised in real time in hole
Hole endoparticle object concentration is controlled, and carries out early warning ventilation operation, guarantees that air is suitble to construction personnel's operation in hole；Ante-chamber, mistake in hole
Cross that chamber, back cavity is equipped with sound-powered phone, anti-explosion telephone facilitates in hole in hole dispatches.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is schematic structural view of the invention.
Fig. 2 is that sealing system overhangs schematic diagram in hole of the present invention.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is that sealing system recycles schematic diagram in hole of the present invention.
Fig. 5 is the side view of Fig. 4.
In figure: 1- ante-chamber partition panel, 2- ante-chamber telescopic cylinder, the sealing of 3- ante-chamber, 4- back cavity partition panel, 5- back cavity stretch gas
Cylinder, 6- back cavity seal, 7- air compressor machine, 8- air accumulator, 9- pressure duct, 10- relay air accumulator, 11- relay air compressor machine, after 12-
Cavity gas storage tank, 13- ball valve I, 14- Pneumatic decompression part, 15- pressure reducing valve I, 16-PI controller, 17- pressure transmitter, 18- single seat
Regulating valve, 19- ball valve II, 20- ball valve III, 21- check valve, 22- pressure reducing valve II, 23- pressure gauge, 24- pressure reducing valve III, 25-
Flowmeter, 26- gate valve, 27- anti-explosion telephone, 28- muffler, 29- ventilation blower, 30- ventilation duct, 31- butterfly valve I, 32- butterfly valve II,
33- safety valve, the compensation environmental pressure table of 34-, the explosion-proof clock and watch of 35-, 36- Hygrothermograph, 37- sound-powered phone, 38- emergency lighting
Lamp, 39- back cavity hermatic door, 40- ante-chamber hermatic door, 41- ante-chamber, 42- adapter cavity, 43- back cavity, 44- Detection of Air Quality equipment,
45- ball valve IV, 46- hedging storehouse, 47- pressure sensor, 48- prior-warning device, 49- cooling driers, 50- filter.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, sealing system, pressurization dynamical system, pressure in a kind of plateau tunnel ventilation pressurizing device, including hole
Regulating system plus depressurized system and wind-exchanging system.
Sealing system includes ante-chamber partition panel 1 and back cavity partition panel 4 in hole, and ante-chamber partition panel 1 is equipped with the flexible gas of ante-chamber
Cylinder 2, ante-chamber telescopic cylinder 2 are connect with ante-chamber sealing 3, and ante-chamber sealing 3 cooperates with tunnel, and back cavity partition panel 4 is stretched equipped with back cavity
Contracting cylinder 5, back cavity telescopic cylinder 5 are connect with back cavity sealing 6, and back cavity sealing 6 cooperates with tunnel, the front shape of ante-chamber partition panel 1
At ante-chamber 41, adapter cavity 42 is formed between ante-chamber partition panel 1 and back cavity partition panel 4, the rear portion of back cavity partition panel 4 forms back cavity
43, ante-chamber partition panel 1 is equipped with ante-chamber hermatic door 40, and back cavity partition panel 4 is equipped with back cavity hermatic door 39.
Pressurization dynamical system includes pressure duct 9, and pressure duct 9 passes through air compressor machine 7, ball valve III20, cooling driers 49, ball
Divide after valve III20, filter 50, ball valve III20, air accumulator 8, relay air accumulator 10, relay air compressor machine 11, back cavity air accumulator 12
It for two-way, is connected to all the way with pressure regulating system, another way and plus-minus pressure system connectivity.
Pressure regulating system includes ante-chamber channel, pressure duct 9 after back cavity air accumulator 12 all the way with ante-chamber channel
Connection, ante-chamber channel are divided into two-way after ball valve IV45, are divided into two after single-seat adjusting valve 18 extends in ante-chamber 41 all the way
Road, another way after ball valve IV45 are divided by ball valve I13, Pneumatic decompression part 14 for two-way, all the way with single-seat adjusting valve 18
Connection, another way are two-way by pressure reducing valve I15 points, are connected to all the way with PI controller 16, and another way and pressure transmitter 17 connect
Logical, PI controller 16 is connected to single-seat adjusting valve 18, and PI controller 16 is connected to pressure transmitter 17, pressure transmitter 17 and position
Ball valve III20 is equipped on pipeline before and after the pipeline connection of 18 rear end part of single-seat adjusting valve, this connectivity part.
Adding depressurized system includes adapter cavity pipeline, another way and adapter cavity of the pressure duct 9 after back cavity air accumulator 12
Pipeline connection, adapter cavity pipeline pass through check valve 21, pressure reducing valve II22, pressure gauge 23, check valve 21, pressure reducing valve III24, pressure
Table 23, spinner flowmeter 25 divide for two-way, and the gate valve 26 passed through in back cavity all the way is extended back to adapter cavity, then pass through check valve
21, muffler 28, another way directly extend to adapter cavity, then pass through check valve, gate valve 26 and muffler 28.
Wind-exchanging system includes two ventilation ducts 30, a ventilation duct 30 by hole outside ventilation blower 29, back cavity butterfly valve I31, preceding
The butterfly valve I31 of chamber, to be connected to outside ante-chamber 41 and hole, another ventilation duct 30 is by the butterfly valve II32 of back cavity, the butterfly valve of ante-chamber
II32, to be connected to ante-chamber 41 and back cavity 43.
Ante-chamber 41 and adapter cavity 42 are connected to by safety line with back cavity 43, and safety line is equipped with safety valve 33.
Threeway balance pipe is equipped in adapter cavity 42, pipe one end extends to ante-chamber 41 by ball valve I13, and the pipe other end is located at transition
In chamber 42 and it is equipped with ball valve I13, the pipe other end passes through ball valve I13, the pressure gauge 23 in adapter cavity 42, the pressure gauge in back cavity 43
23 extend to back cavity 43.
It was equipped with for two communicating pipes between adapter cavity 42 and back cavity 43, a connecting pipe is equipped with the gate valve 26 and muffler of back cavity
28, another communicating pipe is equipped with the gate valve 26 of adapter cavity and the muffler 28 of back cavity.
Detection of Air Quality equipment 44, hedging storehouse 46, pressure sensor 47, prior-warning device are equipped in the ante-chamber 41
48.Compensation environmental pressure table 34, explosion-proof clock and watch 35, Hygrothermograph 36 and emergency light 38 are equipped in adapter cavity 42.Ante-chamber
41, anti-explosion telephone 27 and sound-powered phone 37 are communicated between adapter cavity 42, back cavity 43.
Sealing system in a kind of plateau tunnel ventilation pressurizing device, including hole, pressurization dynamical system, pressure regulating system,
Add depressurized system and wind-exchanging system.
Form of construction work of the present invention: being divided into three chambers for tunnel by ante-chamber partition panel, back cavity partition panel and tunnel wall, according to
Secondary is respectively ante-chamber, adapter cavity and back cavity, controls ante-chamber sealing by ante-chamber telescopic cylinder, it is close that back cavity telescopic cylinder controls back cavity
Envelope, realizes the sealing or opening of each chamber.It is close that ante-chamber hermatic door, back cavity are installed respectively on ante-chamber partition panel, back cavity partition panel
Closure door shuttles for marshaling and personnel.Tunnel is needed in hole wall when constantly tunneling forward using the side such as swage slip casting
The tunnel of formula, interval production high-flatness seals section, is used to constantly move forward, guarantees the gas leakage that ante-chamber is small as far as possible in hole
Amount.
Pressurization dynamical system includes the air compressor machine outside hole, and air compressor machine delivers compressed air to air accumulator, then passes through high pressure
Pipeline delivers compressed air to relay air accumulator (with the extension of tunnel distance, according to pipeline crushing and pipeline compressive resistance
Increase relay air compressor machine and relay air accumulator), then the back cavity air accumulator in hole is transported to by relay air compressor machine relay pressurizing, point
It Jin Ru not pressure regulating system and plus depressurized system.
Pressure regulating system includes ante-chamber channel, and the compressed air from back cavity air accumulator enters ante-chamber channel, is passed through all the way
Ball valve IV points are crossed as two-way, is directly protruding into ante-chamber by unidirectional regulating valve all the way, cavity pressure is stablized before guaranteeing, another way is passed through
Ball valve I reduces to 4bar into Pneumatic decompression three linked piece pressure, and 4bar compressed air is divided into two-way, and 4bar compressed air is all the way
Single-seat adjusting valve provides power source, and another way 4bar compressed air is further depressurized to 1.4bar, 1.4bar by pressure reducing valve I
Compressed air is divided into two-way, and 1.4bar compressed air provides power source, another way 1.4bar compressed air for PI controller all the way
Power source is provided for pressure transmitter.PI controller compared with setting pressure 1bar, controls X mouthfuls by Y mouthfuls of compressed airs
The opening size of single-seat adjusting valve, ante-chamber working region pressure is 1bar normal pressure in the hole Lai Wending.
Adding depressurized system includes adapter cavity pipeline, and the compressed air from back cavity air accumulator enters adapter cavity pipeline, then
By check valve, pressure reducing valve II is adjusted by observation pressure gauge and is depressurized to 4bar, enters back into check valve, again by observation pressure
Table adjusts pressure reducing valve III and is depressurized to 1bar, the flow of compressed air is observed by spinner flowmeter, and control by manual gate valve
The flow of air, silencer can reduce the noise of air.
The safety valve of 1bar is installed, cavity pressure is no more than 1bar before guaranteeing between ante-chamber and back cavity.After in adapter cavity and hole
The safety valve that 1bar is installed between chamber guarantees that transition cavity pressure in hole is no more than 1bar.
Wind-exchanging system conveys fresh air into hole by ventilation blower, ventilation duct, there is PM2.5 and oxygen content detection in hole
Equipment, ante-chamber air quality in real-time detection hole, if air quality is poor, air replacement early-warning lamp and alarm are rung first in hole
It rises, ante-chamber construction personnel enters danger avoidance cabin pressure maintaining and hides in hole, the pneumatic ball valve IV phase down of pressure regulating system, two gas
Dynamic butterfly valve I, two Pneumatic butterfly valve II are opened, and hole separate ventilation machine starting, tunnel uses forced ventilation, until PM2.5 is examined in hole
It is qualified to survey air, separate ventilation machine in hole stops, and two Pneumatic butterfly valve I, two Pneumatic butterfly valve II are closed, pressure regulating system it is pneumatic
Ball valve IV is opened, and air replacement early-warning lamp and alarm stop in hole, and construction personnel is by ante-chamber intercommunication balance pressure in danger avoidance cabin and hole
Power comes out from danger avoidance cabin and continues to construct.
It is connected between ante-chamber and adapter cavity by threeway balance pipe in hole, when marshaling and personnel will enter ante-chamber in hole
When, the pressure between ante-chamber and adapter cavity is balanced by manual ball valve I.
The systems such as back cavity communication are ante-chamber in hole, adapter cavity in hole, back cavity provides Communications service in hole, can be efficient complete
At the scheduling in tunnel.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. sealing system in a kind of plateau tunnel ventilation pressurizing device, including hole, it is characterised in that: sealing system in the hole
Including ante-chamber partition panel (1), ante-chamber partition panel (1) is equipped with ante-chamber telescopic device, and ante-chamber telescopic device and ante-chamber sealing (3) are even
It connects, ante-chamber seals (3) and tunnel cooperates, and the front of ante-chamber partition panel (1) forms ante-chamber (41), pressurization dynamical system and pressure tune
System connectivity is saved, pressure regulating system and wind-exchanging system extend in ante-chamber (41).
The pressurizing device 2. plateau tunnel according to claim 1 is divulged information, it is characterised in that: the pressurization dynamical system packet
It includes pressure duct (9), pressure duct (9) is by air compressor machine (7), air accumulator (8), back cavity air accumulator (12) and pressure regulating system
Connection.
The pressurizing device 3. plateau tunnel according to claim 2 is divulged information, it is characterised in that: on the pressure duct (9)
Equipped with the cooling driers (49) and filter (50) between air compressor machine (7) and air accumulator (8).
The pressurizing device 4. plateau tunnel according to claim 2 is divulged information, it is characterised in that: on the pressure duct (9)
Equipped with the relay air accumulator (10) and relay air compressor machine (11) between air accumulator (8) and back cavity air accumulator (12).
The pressurizing device 5. plateau tunnel according to claim 1 is divulged information, it is characterised in that: the pressure regulating system packet
Ante-chamber channel is included, ante-chamber channel is divided into two-way, extends in ante-chamber (41) by single-seat adjusting valve (18) all the way, and another way passes through gas
Dynamic decompression part (14) is divided into two-way, is connected to all the way with single-seat adjusting valve (18), and another way passes through pressure reducing valve I(15) it is divided into two-way,
It is connected to all the way with PI controller (16), another way is connected to pressure transmitter (17), PI controller (16) and single-seat adjusting valve
(18) it is connected to, PI controller (16) be connected to pressure transmitter (17), pressure transmitter (17) and positioned at single-seat adjusting valve (18)
The pipeline connection of rear end part.
The pressurizing device 6. plateau tunnel according to claim 1 is divulged information, it is characterised in that: the wind-exchanging system includes two
Ventilation duct (30), a ventilation duct (30) are connected to outside ante-chamber (41) and hole by ventilation blower (29), and another ventilation duct is connected to ante-chamber
(41) and back cavity (43).
The pressurizing device 7. plateau tunnel according to claim 1 is divulged information, it is characterised in that: be equipped in the ante-chamber (41)
Detection of Air Quality equipment (44) and hedging storehouse (46).
The pressurizing device 8. plateau tunnel according to claim 1 is divulged information, it is characterised in that: sealing system is also in the hole
Including back cavity partition panel (4), back cavity partition panel (4) is equipped with back cavity telescopic device, and back cavity telescopic device and back cavity sealing (6) are even
It connects, back cavity seals (6) and tunnel cooperates, and forms adapter cavity (42) between ante-chamber partition panel (1) and back cavity partition panel (4), back cavity
The rear portion of partition panel (4) forms back cavity (43), and pressurization dynamical system and plus-minus pressure system connectivity add depressurized system to extend to adapter cavity
(42) in.
The pressurizing device 9. plateau tunnel according to claim 8 is divulged information, it is characterised in that: described plus depressurized system includes
Adapter cavity pipeline, adapter cavity are extended back by pressure relief assembly to adapter cavity (42).
The pressurizing device 10. plateau tunnel according to claim 8 is divulged information, it is characterised in that: in the adapter cavity (42)
Equipped with threeway balance pipe, ball valve I(13 is passed through in pipe one end) it extends to ante-chamber (41), the pipe other end is located in adapter cavity (42) and is equipped with
Ball valve I(13), the pipe other end is by ball valve I(13), the pressure gauge (23) in adapter cavity (42), the pressure gauge in back cavity (43)
(23) back cavity (43) are extended to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910375269.0A CN109989780B (en) | 2019-05-07 | 2019-05-07 | Plateau tunnel ventilation pressurizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910375269.0A CN109989780B (en) | 2019-05-07 | 2019-05-07 | Plateau tunnel ventilation pressurizing device |
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| CN109989780B CN109989780B (en) | 2024-04-19 |
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