CN108661699A - A kind of heating-power tunnel emergency escape cabin and application method - Google Patents
A kind of heating-power tunnel emergency escape cabin and application method Download PDFInfo
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- CN108661699A CN108661699A CN201810742557.0A CN201810742557A CN108661699A CN 108661699 A CN108661699 A CN 108661699A CN 201810742557 A CN201810742557 A CN 201810742557A CN 108661699 A CN108661699 A CN 108661699A
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- Prior art keywords
- emergency escape
- escape cabin
- nacelle
- tunnel
- heat preservation
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 44
- 238000009826 distribution Methods 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007717 exclusion Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 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
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The present invention relates to a kind of heating-power tunnel emergency escape cabin and application methods, emergency escape cabin includes the heat preservation nacelle of one end open and the heat preservation hatch door for being set to heat preservation nacelle open end, it keeps the temperature the peripheral wall of nacelle and keeps the temperature and be equipped with heat-insulating material in hatch door, keep the temperature and be equipped with sealing device between nacelle and heat preservation hatch door；It keeps the temperature and is equipped with multiple seats of taking refuge in nacelle, the downside for seat of taking refuge is equipped with apparatus of oxygen supply, and the side for seat of taking refuge is equipped with emission-control equipment.It has the advantages that it is compact-sized, occupy little space, be easy to use, safe, reliable Waiting space can be provided for heat distribution pipe network patrol officer in tunnel.The application method of emergency escape cabin has the advantages that scientific and reasonable, realization is easy, low energy consumption, reliability is high, can effectively improve escape probability.
Description
Technical field
The present invention relates to a kind of act of rescue devices, and in particular to a kind of emergency escape cabin for heating-power tunnel, and
Its application method.
Background technology
To ensure that accident manhole should be arranged in safety, heating power walkway duct, the things such as leakage occur in pipe network for patrol officer
Therefore when the act of rescue escape.According to the rules, the accident manhole setting spacing of hot water pipe net is not greater than 400m, the thing of steam pipe network
Old friend hole setting spacing is not greater than 100m.For the heat distribution pipe network in tunnel, by shield method, pipe jacking method continuity and environment
The influence of complexity, if by the way that the straight-through ground of opening holes is to form accident manhole on tunnel structure, feasibility is poor, very
To cannot achieve；Even if may be implemented larger if its difficulty of construction, cost is higher, and using effect is poor.Meanwhile this field
There are no the act of rescue devices or technology specifically for heating-power tunnel, can not ensure the safety of heat distribution pipe network patrol officer.
Invention content
The object of the present invention is to provide a kind of heating-power tunnel emergency escape cabin and application method, emergency escape cabin has structure
It is compact, occupy little space, advantage easy to use, safe, reliable sky of taking refuge can be provided for heat distribution pipe network patrol officer
Between；The application method of emergency escape cabin has the advantages that scientific and reasonable, realization is easy, low energy consumption, reliability is high.
To solve the above-mentioned problems in the prior art, a kind of heating-power tunnel emergency escape cabin provided by the invention, packet
The heat preservation nacelle of one end open is included, and is set to the heat preservation hatch door of heat preservation nacelle open end, keeps the temperature peripheral wall and the heat preservation of nacelle
It is equipped with heat-insulating material in hatch door, keeps the temperature and is equipped with sealing device between nacelle and heat preservation hatch door；It is equipped with multiple keep away in heat preservation nacelle
The downside of difficult seat, seat of taking refuge is equipped with apparatus of oxygen supply, and the side for seat of taking refuge is equipped with emission-control equipment.
Further, a kind of heating-power tunnel emergency escape cabin of the present invention, wherein in the heat preservation nacelle and at exhaust gas
The side for managing device is equipped with refrigerating plant, and the roof for keeping the temperature nacelle is equipped with register.
Further, a kind of heating-power tunnel emergency escape cabin of the present invention, wherein in the heat preservation nacelle and in refrigeration dress
The upside set is equipped with material stock device.
Further, a kind of heating-power tunnel emergency escape cabin of the present invention, wherein the one side wall of the heat preservation nacelle is equipped with
Communication device.
Further, a kind of heating-power tunnel emergency escape cabin of the present invention, wherein the one side wall of the heat preservation nacelle is equipped with
Monitoring device.
Further, a kind of heating-power tunnel emergency escape cabin of the present invention, wherein at four angles on the downside of the heat preservation nacelle
It is respectively equipped with fixing device for installing.
A kind of application method of above-mentioned heating-power tunnel emergency escape cabin provided by the invention, includes the following steps：
One, according to the type of heat distribution pipe network in tunnel, emergency escape cabin is arranged along tunnel by the spacing distance of setting；
Two, patrol officer enters when being powered for tunnel before tunnel, allows refrigerating plant and register to automatically turn on, with to tight
The inside of anxious refuge cabin cools down；
Three, during inspection, when leakage accident occurs, patrol officer is allowed to rapidly enter nearest emergency escape cabin, and
Close heat preservation hatch door；
Four, according to the number and environmental parameter in emergency escape cabin, the personnel in emergency escape cabin are separately turned on oxygen supply
Device and emission-control equipment；
Five, the personnel in emergency escape cabin are communicated by communication device with extraneous, and report accident situation and location information,
It waits for rescue；
Six, inspection terminates that leakage accident does not occur, when patrol officer walk out tunnel and for tunnel power-off when, allow refrigerating plant
It is automatically closed with register.
Further, a kind of application method of heating-power tunnel emergency escape cabin of the present invention, wherein in above-mentioned steps one,
The type of the heat distribution pipe network is hot water pipe net or steam pipe network, when the heat distribution pipe network in tunnel is hot water pipe net, between described
Gauge is from less than or equal to 400m, and when the heat distribution pipe network in tunnel is steam pipe network, the spacing distance is less than or equal to
100m。
Further, a kind of application method of heating-power tunnel emergency escape cabin of the present invention, wherein in above-mentioned steps four,
The environmental parameter is detected and is shown by monitoring device, and environmental parameter includes oxygen content, carbon dioxide content and temperature
Humidity.
Further, a kind of application method of heating-power tunnel emergency escape cabin of the present invention, wherein in above-mentioned steps one,
Further include that food and water are stored into material stock device；In above-mentioned steps five, and after completing to rescue exclusion leakage accident,
Further include being checked emergency escape cabin, being safeguarded, to ensure that it subsequently uses function.
A kind of heating-power tunnel emergency escape cabin of the present invention and application method compared with prior art, have the following advantages：This
Invention passes through the heat preservation nacelle that one end open is arranged, and is set to the heat preservation hatch door of heat preservation nacelle open end, and in insulated hold
It is respectively provided with heat-insulating material in the peripheral wall and heat preservation hatch door of body, sealing device is set between heat preservation nacelle and heat preservation hatch door；Meanwhile
Multiple seats of taking refuge are set in keeping the temperature nacelle, apparatus of oxygen supply is set in the downside for seat of taking refuge, is set in the side for seat of taking refuge
Set emission-control equipment.Thus just constitute it is a kind of it is compact-sized, occupy little space, heating power tunnel easy to use, safe
Road emergency escape cabin.In practical applications, according to the type of heat distribution pipe network (hot water pipe net or steam pipe network), by setting in tunnel
Fixed spacing distance arranges emergency escape cabin, when the accidents such as leakage occur, makes the patrol officer in tunnel that can rapidly enter most
Close emergency escape cabin ensure that the safety of patrol officer, to realize by emergency escape cabin and extraneous isolation features
It takes refuge the technical purpose of escape.Compared to accident manhole, escape distance is shortened, and by seat of taking refuge, apparatus of oxygen supply and give up
Flash Gas Compression Skid System can slow down the impatient situation of personnel, extend life span, improve escape probability.In addition, the present invention can be in factory
Room production assembly, and install and use at the scene, quick construction, cost are small.The application method of emergency escape cabin provided by the invention
Have the advantages that scientific and reasonable, realization is easy, low energy consumption, reliability is high.
Shown specific implementation mode is to a kind of heating-power tunnel emergency escape cabin of the present invention and application method below in conjunction with the accompanying drawings
It is described in further detail：
Description of the drawings
Fig. 1 is a kind of front view of heating-power tunnel emergency escape cabin of the present invention；
Fig. 2 is a kind of vertical view of heating-power tunnel emergency escape cabin of the present invention；
Fig. 3 is a kind of right view of heating-power tunnel emergency escape cabin of the present invention.
Specific implementation mode
Firstly the need of explanation, the nouns of locality such as heretofore described upper and lower, front, rear, left and right only with reference to the accompanying drawings into
Capable description, in order to understand, not to technical scheme of the present invention and be claimed range progress limitation.
A kind of specific implementation mode of heating-power tunnel emergency escape cabin of the present invention as shown in Figure 1 to Figure 3, including one end open
Heat preservation nacelle 1, and be set to the heat preservation hatch door 2 of heat preservation nacelle 1 open end.In the peripheral wall and heat preservation hatch door 2 of heat preservation nacelle 1
In be equipped with heat-insulating material, to ensure heat insulation.Sealing device is set between heat preservation nacelle 1 and heat preservation hatch door 2, to ensure
The sealing performance of emergency escape cabin.And multiple seats 3 of taking refuge are set in keeping the temperature nacelle 1, it is arranged in the downside for seat 3 of taking refuge and supplies
Emission-control equipment 5 is arranged in the side for seat 3 of taking refuge in oxygen device 4.
Be arranged through the above structure just constitute it is a kind of it is compact-sized, occupy little space, heat easy to use, safe
Power tunnel emergency escape cabin.In practical applications, according to the type of heat distribution pipe network, by the spacing distance arrangement of setting in tunnel
Emergency escape cabin makes the patrol officer in tunnel that can rapidly enter nearest emergency escape cabin when the accidents such as leakage occur, and leads to
Emergency escape cabin and extraneous isolation features are crossed, the safety of patrol officer is ensure that, to realize the technology mesh for escape of taking refuge
's.Compared to accident manhole, escape distance is shortened, and by seat 3 of taking refuge, apparatus of oxygen supply 4 and emission-control equipment 5, it can
Slow down the impatient situation of personnel, extends life span, improve escape probability.And the present invention can be produced in workshop and be assembled, and
In-site installation uses, and quick construction, cost are small.
Scheme as an optimization, present embodiment is in keeping the temperature nacelle 1 and the side in emission-control equipment 5 is arranged
Refrigerating plant 6, and register 7 is provided on the roof of heat preservation nacelle 1.This structure setting in practical applications, is led to
It crosses refrigerating plant 6 and register 7 can control temperature in emergency escape cabin, more comfortable ring can be provided for the personnel of taking refuge
Border.In the long-term heat supplying process of heat distribution pipe network temperature in emergency escape cabin can increase, personnel should not be chronically at wherein；If
It allows refrigerating plant 6 and register 7 to run always, can not only consume mass energy, and will increase the volume of emergency escape cabin
And occupied space.The present invention is by allowing refrigerating plant 6 and register 7 with power supply in tunnel or other modes (chemical reaction
Deng) start cooling, and it is made only to be run when patrol officer enters tunnel, can efficiency reduce the volume and occupancy of emergency escape cabin
Space.
Meanwhile present embodiment is in keeping the temperature nacelle 1 and the upside in refrigerating plant 6 is filled provided with material stock
8 are set, by storing food and water in material stock device 8, the physical efficiency of escape personnel can be enhanced, its gentle mood；And pass through
Communication device 9 is set in the one side wall of heat preservation nacelle 1, escape personnel can be made to be established with circle of place and communicated；By in heat preservation nacelle 1
One side wall on monitoring device 10 is set, the environmental parameter in emergency escape cabin can be monitored, so as to according to number and environmental parameter,
Purposefully control apparatus of oxygen supply 4 and emission-control equipment 5 makes it with low-power in the case where ensureing basic life condition
Operation, can extend the effective time of emergency escape cabin, be conducive to race against time for rescue.In addition, present embodiment is being protected
It is respectively provided with fixing device for installing 11 at four angles of 1 downside of warm nacelle, to combine heating power holder to install emergency escape cabin,
Make full use of the upper space of heating-power tunnel.
The experiment proved that the present invention can provide protection in 6 hours or more for escape personnel, have escape apart from short, protection
The advantage of time length, effectively increases escape probability.
Based on same inventive concept, the present invention also provides a kind of application methods of heating-power tunnel emergency escape cabin, specifically
Include the following steps：
One, according to the type of heat distribution pipe network in tunnel, emergency escape cabin is arranged along tunnel by the spacing distance of setting.
Two, patrol officer enters when being powered for tunnel before tunnel, allows refrigerating plant 6 and register 7 to automatically turn on, with right
The inside of emergency escape cabin cools down.
Three, during inspection, when leakage accident occurs, patrol officer is allowed to rapidly enter nearest emergency escape cabin, and
Heat preservation hatch door 2 is closed, is isolated from the outside with realizing.
Four, according to the number and environmental parameter in emergency escape cabin, the personnel in emergency escape cabin are separately turned on oxygen supply
Device 4 and emission-control equipment 5.The oxygen in emergency escape cabin can be supplemented by apparatus of oxygen supply 4, pass through emission-control equipment 5
Absorption processing can be carried out to exhaust gas such as carbon dioxide in emergency escape cabin.
Five, the personnel in emergency escape cabin are communicated by communication device 9 with extraneous, and report accident situation and position letter
Breath, waits for rescue.
Six, inspection terminates that leakage accident does not occur, when patrol officer walk out tunnel and for tunnel power-off when, allow refrigerating plant
6 and register 7 be automatically closed, with save the energy, reduce energy consumption.
In above-mentioned steps one, the type of the heat distribution pipe network is hot water pipe net or steam pipe network, when the heating power in tunnel
When pipe network is hot water pipe net, the spacing distance is less than or equal to 400m, when the heat distribution pipe network in tunnel is steam pipe network, institute
It states spacing distance and is less than or equal to 100m.
In above-mentioned steps four, the environmental parameter is detected and is shown by monitoring device 10, and environmental parameter includes oxygen
Gas content, carbon dioxide content and humiture.
Further include that food and water are stored into material stock device 8 in above-mentioned steps one.In above-mentioned steps five, and
Further include being checked emergency escape cabin, being safeguarded after completing to rescue exclusion leakage accident, to ensure that it subsequently uses work(
Energy.
A kind of application method of heating-power tunnel emergency escape cabin provided by the invention is with scientific and reasonable, realization is easy, energy
Advantage low, that reliability is high is consumed, escape probability can be effectively improved.
Above example is only the description carried out to the preferred embodiment of the present invention, and model not is claimed to the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, the technology of this field engineers and technicians according to the present invention
The various forms of deformations that scheme is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (10)
1. a kind of heating-power tunnel emergency escape cabin, which is characterized in that heat preservation nacelle (1) including one end open and be set to guarantor
The heat preservation hatch door (2) of warm nacelle (1) open end is equipped with heat-insulating material in the peripheral wall of heat preservation nacelle (1) and heat preservation hatch door (2),
It keeps the temperature and is equipped with sealing device between nacelle (1) and heat preservation hatch door (2)；It keeps the temperature and is equipped with multiple seats of taking refuge (3) in nacelle (1), keep away
The downside of difficult seat (3) is equipped with apparatus of oxygen supply (4), and the side of seat of taking refuge (3) is equipped with emission-control equipment (5).
2. a kind of heating-power tunnel emergency escape cabin described in accordance with the claim 1, which is characterized in that in the heat preservation nacelle (1)
And the side in emission-control equipment (5) is equipped with refrigerating plant (6), the roof of heat preservation nacelle (1) is equipped with register
(7)。
3. a kind of heating-power tunnel emergency escape cabin according to claim 2, which is characterized in that in the heat preservation nacelle (1)
And the upside in refrigerating plant (6) is equipped with material stock device (8).
4. a kind of heating-power tunnel emergency escape cabin described in accordance with the claim 3, which is characterized in that the heat preservation nacelle (1)
One side wall is equipped with communication device (9).
5. a kind of heating-power tunnel emergency escape cabin according to claim 4, which is characterized in that the heat preservation nacelle (1)
One side wall is equipped with monitoring device (10).
6. a kind of heating-power tunnel emergency escape cabin according to claim 5, which is characterized in that under the heat preservation nacelle (1)
It is respectively equipped with fixing device for installing (11) at four angles of side.
7. the application method of heating-power tunnel emergency escape cabin described in a kind of claim 6, which is characterized in that include the following steps：
One, according to the type of heat distribution pipe network in tunnel, emergency escape cabin is arranged along tunnel by the spacing distance of setting；
Two, patrol officer enters when being powered for tunnel before tunnel, allows refrigerating plant (6) and register (7) automatic opening, with right
The inside of emergency escape cabin cools down；
Three, during inspection, when leakage accident occurs, patrol officer is allowed to rapidly enter nearest emergency escape cabin, and close
Keep the temperature hatch door (2)；
Four, according to the number and environmental parameter in emergency escape cabin, the personnel in emergency escape cabin are separately turned on apparatus of oxygen supply
(4) and emission-control equipment (5)；
Five, the personnel in emergency escape cabin are communicated by communication device (9) with extraneous, and report accident situation and location information,
It waits for rescue；
Six, inspection terminates that leakage accident does not occur, when patrol officer walk out tunnel and for tunnel power-off when, allow refrigerating plant (6)
It is automatically closed with register (7).
8. a kind of application method of heating-power tunnel emergency escape cabin according to claim 7, which is characterized in that in step 1
In, the type of the heat distribution pipe network is hot water pipe net or steam pipe network, described when the heat distribution pipe network in tunnel is hot water pipe net
Spacing distance is less than or equal to 400m, and when the heat distribution pipe network in tunnel is steam pipe network, the spacing distance is less than or equal to
100m。
9. a kind of application method of heating-power tunnel emergency escape cabin according to claim 8, which is characterized in that in step 4
In, the environmental parameter is detected and is shown by monitoring device (10), and environmental parameter includes oxygen content, carbon dioxide content
And humiture.
10. a kind of application method of heating-power tunnel emergency escape cabin according to claim 9, which is characterized in that in step
Further include storage food and water into material stock device (8) in one；Leakage thing is excluded in step 5, and completing to rescue
Further include being checked emergency escape cabin, being safeguarded after therefore, to ensure that it subsequently uses function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742557.0A CN108661699A (en) | 2018-07-09 | 2018-07-09 | A kind of heating-power tunnel emergency escape cabin and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742557.0A CN108661699A (en) | 2018-07-09 | 2018-07-09 | A kind of heating-power tunnel emergency escape cabin and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108661699A true CN108661699A (en) | 2018-10-16 |
Family
ID=63772551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810742557.0A Pending CN108661699A (en) | 2018-07-09 | 2018-07-09 | A kind of heating-power tunnel emergency escape cabin and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661699A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070199244A1 (en) * | 2006-02-27 | 2007-08-30 | Kennedy William R | Mine Refuge |
| CN201934130U (en) * | 2011-03-21 | 2011-08-17 | 王长龙 | Mining rescue capsule |
| CN102373946A (en) * | 2011-10-08 | 2012-03-14 | 江苏凯力德科技有限公司 | Mine movable rescue capsule and rescue method |
| US20130091783A1 (en) * | 2011-10-13 | 2013-04-18 | Strata Products (Usa), Inc. | Modular shelter and method |
| CN105909303A (en) * | 2016-05-27 | 2016-08-31 | 中铁第四勘察设计院集团有限公司 | Tunnel construction life-saving system |
| CN208456661U (en) * | 2018-07-09 | 2019-02-01 | 北京市煤气热力工程设计院有限公司 | A kind of heating-power tunnel emergency escape cabin |
-
2018
- 2018-07-09 CN CN201810742557.0A patent/CN108661699A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070199244A1 (en) * | 2006-02-27 | 2007-08-30 | Kennedy William R | Mine Refuge |
| CN201934130U (en) * | 2011-03-21 | 2011-08-17 | 王长龙 | Mining rescue capsule |
| CN102373946A (en) * | 2011-10-08 | 2012-03-14 | 江苏凯力德科技有限公司 | Mine movable rescue capsule and rescue method |
| US20130091783A1 (en) * | 2011-10-13 | 2013-04-18 | Strata Products (Usa), Inc. | Modular shelter and method |
| CN105909303A (en) * | 2016-05-27 | 2016-08-31 | 中铁第四勘察设计院集团有限公司 | Tunnel construction life-saving system |
| CN208456661U (en) * | 2018-07-09 | 2019-02-01 | 北京市煤气热力工程设计院有限公司 | A kind of heating-power tunnel emergency escape cabin |
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