CN113279803A - Shaft fume extractor - Google Patents
Shaft fume extractor Download PDFInfo
- Publication number
- CN113279803A CN113279803A CN202110395894.9A CN202110395894A CN113279803A CN 113279803 A CN113279803 A CN 113279803A CN 202110395894 A CN202110395894 A CN 202110395894A CN 113279803 A CN113279803 A CN 113279803A
- Authority
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- China
- Prior art keywords
- frame
- baffle plate
- baffle
- shaft
- vertical
- 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.)
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- 239000003517 fume Substances 0.000 title claims description 3
- 239000000779 smoke Substances 0.000 claims abstract description 60
- 238000013519 translation Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 20
- 239000003546 flue gas Substances 0.000 abstract description 20
- 230000035515 penetration Effects 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 15
- 230000009471 action Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 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
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- E21F1/10—Air doors
-
- 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
- E21F1/10—Air doors
- E21F1/12—Devices for automatically opening air doors
-
- 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
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)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a shaft smoke exhaust device, which comprises a suspender, wherein a frame is fixed at the lower end of the suspender, two opposite sides are arranged on the frame, frame rails are arranged on the opposite sides, the two frame rails bear limit frame modules which can move along the frame rails, each limit frame module comprises a limit frame, a baffle lifting motor is arranged on the limit frame, hollow cavities at two ends of each limit frame are gear cabins, baffle gears are arranged in the gear cabins, the baffle lifting motors are linked with the baffle gears, a cavity in the middle of each limit frame is a vertical baffle limit cabin for arranging a vertical baffle, and the vertical baffle is provided with a baffle rack; the frame is provided with a lifting device, the lower end of the lifting device is fixed with a horizontal baffle plate, the upper end face of the horizontal baffle plate is provided with a baffle plate rail, and the vertical baffle plate is provided with a translation device. Through the movable arrangement of the vertical baffle plate and the horizontal baffle plate, the purposes of effectively blocking the downstream diffusion of the flue gas, inhibiting the suction penetration phenomenon and distributing the area of the smoke outlet according to the amount of the flue gas at the upstream and downstream are achieved, thereby improving the smoke exhaust capacity of the vertical shaft.
Description
Technical Field
The invention belongs to the technical field of shaft equipment, and particularly relates to a shaft smoke exhaust device.
Background
The process of urbanization is accelerated gradually at present, the number of urban population is increased rapidly, and scientific development and utilization of underground space become necessary choices in the era. The underground tunnel is a typical long and narrow space building, brings convenience to people and brings other safety hazards, such as fire. In recent years, a plurality of heavy and extremely large tunnel fires occur successively, which causes heavy casualties and property loss. Statistical results show that the main factor causing casualties in fires is high-temperature toxic smoke generated by incomplete combustion. Due to the long and narrow structural characteristics of the tunnel, once a fire disaster happens, high-temperature toxic and harmful smoke can spread to the two ends of the tunnel along the ceiling. If the flue gas that the conflagration produced can't in time discharge, the flue gas can gather at the tunnel ceiling, leads to the increase of tunnel flue gas concentration and flue gas layer thickness, seriously influences conflagration rescue and sparse flee.
At present, the tunnel is commonly used in an anti-smoke system, which mainly comprises two types, namely a mechanical smoke system for supplying air by adopting an axial flow fan, and a natural smoke system for adopting an open top or a vertical shaft. The mechanical smoke exhaust system is high in installation and maintenance cost, and can cause disorder of a smoke layer in the downwind direction of a fire source after being started, so that the problems such as rescue and escape difficulty of people suffering from the downwind direction of the fire source are aggravated. Therefore, a natural smoke exhaust shaft which has stable smoke exhaust performance, low construction cost and no need of subsequent maintenance is receiving wide attention from the market. At present, a natural smoke exhaust mode is tried to be adopted in a plurality of urban underground tunnels, a plurality of field experiments are carried out, and feasibility of natural smoke exhaust by arranging a vertical shaft at the top of the tunnel is gradually proved. The natural ventilation mode of the urban tunnel is that a ventilation vertical shaft communicated with the outside atmosphere is arranged at the top of the tunnel at intervals, so that the outside air is exchanged with the air in the tunnel, and the aim of adjusting the air temperature, the humidity, the flow rate and the like in the space of the tunnel is fulfilled. After a fire disaster occurs in a tunnel, smoke has two main spreading ways: in the area far away from the vertical shaft, the smoke horizontally spreads below the tunnel ceiling; when the smoke spreads to the lower part of the vertical shaft, part of the smoke flows towards the inner part of the vertical shaft under the action of buoyancy. The chimney effect is a main factor that smoke can be rapidly discharged through a vertical shaft when a fire disaster occurs in the tunnel, and is also a main driving force for the smoke to move in the vertical direction. The chimney effect is mainly caused by the temperature difference between hot flue gas in the tunnel and cold air in the environment, and the density difference is caused by the temperature difference, so that the flue gas moves upwards in the vertical shaft under the action of buoyancy. And the larger the temperature difference is, or the higher the height of the vertical shaft is, the stronger the chimney effect is. The chimney effect that produces in the utilization shaft can be directly discharged the flue gas from the tunnel, has discharged the heat that the conflagration produced promptly, also can delay the settlement of tunnel ceiling below flue gas, has striven for the valuable time for personnel's evacuation.
However, the shaft-type natural draft system also has its disadvantages. In the practical use, because the interior external pressure differential that the chimney effect that forms in the shaft leads to makes the flue gas layer of shaft below receive the effect of vertical inertia force, and the disturbance reinforcing of interface department with the air for during some air is inhaled the flue gas layer by the book, formed obvious depressed area in the shaft below, and along with the shaft height risees, the chimney effect strengthens gradually, and the depressed area also increases more and more. When the vertical shaft reaches a certain height, the highest point of the sunken area enters the lower end opening of the vertical shaft, the thickness of the smoke layer below the vertical shaft is reduced to 0, and the special phenomenon in the smoke exhausting process of the vertical shaft is called as a suction penetration phenomenon. When the suction-through phenomenon occurs, cold air at the lower part of the tunnel is directly sucked into the vertical shaft, so that the smoke exhaust effect of the vertical shaft is obviously reduced, and the development of a vertical shaft type natural smoke exhaust system is seriously inhibited. For this purpose, a shaft smoke exhaust device is designed.
Disclosure of Invention
The invention aims to provide a vertical shaft smoke exhaust device to achieve the purposes of effectively blocking smoke from diffusing downstream, inhibiting the phenomenon of smoke penetration, and distributing the area of a smoke exhaust port according to the amount of the smoke in the upstream and downstream so as to improve the smoke exhaust capacity of a vertical shaft.
In order to achieve the purpose, the specific technical scheme of the shaft smoke exhaust device is as follows:
a shaft smoke exhaust device comprises a hanger rod, wherein a frame is fixed at the lower end of the hanger rod, two opposite sides are arranged on the frame, frame rails which are parallel to each other are horizontally arranged on the upper end faces of the opposite sides respectively, the two frame rails jointly bear a limiting frame module which can move along the frame rails, the limiting frame module comprises an I-shaped hollow limiting frame, a braking mechanism is arranged on the limiting frame, the braking mechanism comprises a baffle lifting motor, hollow cavities at the two ends of the limiting frame are gear cabins, baffle gears are arranged in the gear cabins, the baffle lifting motor is linked with the baffle gears, a cavity in the middle of the limiting frame is a vertical baffle limiting cabin, vertical baffles are arranged in the vertical baffle limiting cabin in a sliding fit mode, and baffle racks matched with the baffle gears are vertically arranged on the vertical baffles; the frame is provided with a lifting device, the lower end of the lifting device is fixed with a horizontal baffle plate, the upper end face of the horizontal baffle plate is provided with a baffle plate rail parallel to the frame rail, and the lower part of the vertical baffle plate is provided with a translation device matched with the baffle plate rail. Through the movable arrangement of the vertical baffle plate and the horizontal baffle plate, the purposes of effectively blocking the downstream diffusion of the flue gas, inhibiting the suction penetration phenomenon and distributing the area of the smoke outlet according to the amount of the flue gas at the upstream and downstream are achieved, thereby improving the smoke exhaust capacity of the vertical shaft.
Further, the length of the hanging rod is not more than the height of the vertical baffle. When the vertical baffle plate rises to the highest position, the closing effect of the vertical shaft can be ensured, and the requirements of specific working conditions are met.
Furthermore, two gear cabins are provided with bearing holes relatively, bearings are arranged in the bearing holes, a transmission shaft is horizontally arranged between the two bearing holes through the limiting frame, and the baffle gear is arranged on the transmission shaft. Through the arrangement of the transmission shaft, the matching of the rack and the baffle gear is more reasonable and convenient, and the stability and the synchronism of the operation of the equipment are ensured.
Furthermore, the baffle plate rack is provided with two baffle plate racks. Can be matched with a transmission shaft, and brakes at two ends of the vertical baffle plate simultaneously, so that the vertical baffle plate operates more stably.
Furthermore, the frame track is a track groove, the limiting frame module is provided with a frame roller matched with the track groove, and the frame roller comprises a frame limiting roller and a frame driven roller. The vertical baffle plate can move more stably when moving horizontally.
Furthermore, the braking mechanism comprises a limiting frame moving motor which is linked with a limiting roller of the frame. The vertical baffle can be controlled by a limit frame moving motor and can move stably as required.
Further, the baffle rail is a rail groove. The structure is reasonable and simple.
Further, the translation device is a translation roller. Facilitating the matching with the track groove.
Further, the lifting device is an elastic connecting rope. The horizontal baffle can be circumscribed with the lower part of the vertical baffle at any time, and the horizontal height of the horizontal baffle is controlled by moving the vertical baffle up and down.
Furthermore, a heat shield is arranged outside the brake mechanism. The protection arrestment mechanism of being convenient for, prevent to receive the interior environment influence service effect and the life-span of shaft braking mechanism.
Compared with the prior art, the invention has the following beneficial effects:
1. through the portable setting of perpendicular plate washer and horizontal plate washer, reach and effectively block the flue gas and spread downstream, restrain the suction simultaneously and wear the phenomenon, when the tunnel conflagration breaks out, the staff can be according to the thickness on flue gas layer, through the transfer height of remote controller control combination baffle, make the distance of horizontal baffle to the roof equal flue gas layer thickness. When the flue gas spreads from one side of exhaust port, the staff can control the removal of perpendicular baffle about by the remote control, adjusts the position of perpendicular baffle at the exhaust port, and when exhaust port one side flue gas was more, the staff can remove perpendicular baffle through the remote control, and horizontal motor rotates the removal that drives removal spacing frame this moment, drives perpendicular baffle horizontal migration, makes the exhaust port area of the more one side of flue gas bigger, promotes the smoke exhaust effect.
2. Through setting up transmission shaft and two racks, make perpendicular plate washer remove more steadily. The design structure is simple, the operation is convenient, a complex structure is not needed, and the cost is reduced.
3. The lifting device is an elastic connecting rope. The horizontal baffle can be circumscribed with the lower part of the vertical baffle at any time, and the horizontal height of the horizontal baffle is controlled by moving the vertical baffle up and down, so that the smoke exhaust requirement is met.
4. The outside of the brake mechanism is provided with a heat shield. The protection arrestment mechanism of being convenient for, prevent to receive the interior environment influence service effect and the life-span of shaft braking mechanism.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the present invention in a working state;
FIG. 3 is a schematic view of the frame structure of the present invention;
FIG. 4 is a schematic view of a spacing frame structure according to the present invention;
FIG. 5 is a schematic view of a drive shaft according to the present invention;
FIG. 6 is a schematic view of the braking mechanism of the present invention;
FIG. 7 is a schematic view of a vertical baffle of the present invention;
FIG. 8 is a schematic view of a horizontal baffle of the present invention;
FIG. 9 is a schematic view of a translation device according to the present invention.
The reference numbers in the figures illustrate: 1. the lifting device comprises a lifting rod, a frame rail, a lifting device, a limiting frame, a baffle lifting motor, a gear cabin, a bearing, a vertical baffle limiting cabin, a frame limiting roller, a frame driven roller, a limiting frame moving motor, a baffle gear, a transmission shaft, a vertical baffle, a baffle rack, a translation device, a horizontal baffle, a baffle rail, a power supply and a controller, wherein the lifting rod is 2, the frame, the limiting frame, the baffle lifting motor, the gear cabin, the bearing 321, the vertical baffle limiting cabin, the frame limiting roller, the frame driven roller, the limiting frame moving motor, the baffle gear, the transmission shaft, the vertical baffle, the baffle 51, the baffle rack, the translation device, the horizontal baffle, the baffle rail, the power supply and the controller are 8.
The specific implementation mode is as follows:
for a better understanding of the objects, structure and function of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
Referring to fig. 1, a shaft smoke exhaust device is designed, the device is made of high temperature resistant materials, and comprises a suspender 1, a frame 2 is fixed at the lower end of the suspender 1, two opposite edges are arranged on the frame 2, frame rails 21 which are parallel to each other are horizontally arranged on the upper end faces of opposite edges respectively, the two frame rails 21 jointly bear a limiting frame module which can move along the frame rails 21, the limiting frame module comprises an I-shaped hollow limiting frame 3, a braking mechanism is arranged on the limiting frame 3, the braking mechanism comprises a baffle plate lifting motor 31, hollow cavities at the two ends of the limiting frame 3 are gear cabins 32, baffle plate gears 4 are arranged in the gear cabins 32, the baffle plate lifting motor 31 is linked with the baffle plate gears 4, a cavity in the middle of the limiting frame 3 is a vertical baffle plate limiting cabin 33, vertical baffle plates 5 are arranged in the vertical baffle plate limiting cabin 33 in a sliding fit mode, and baffle plate racks 51 matched with the baffle plate gears 4 are vertically arranged on the vertical baffle plates 5; the frame 2 is provided with a lifting device 22, the lower end of the lifting device 22 is fixed with a horizontal baffle plate 6, the upper end surface of the horizontal baffle plate 6 is provided with a baffle plate rail 61 parallel to the frame rail 21, and the lower part of the vertical baffle plate 5 is provided with a translation device 52 matched with the baffle plate rail 61.
The invention is simple to install and use, only the frame 2 needs to be installed on the top plate below the smoke exhaust shaft, and the smoke exhaust port of the existing shaft does not need to be reformed. When the combined type smoke-absorbing device is used, managers can control the lowering height of the combined horizontal baffle 6 according to the thickness of a smoke layer, so that smoke is prevented from continuously spreading, fresh air in a lower space is prevented from entering a smoke outlet, and the smoke penetration effect is inhibited; meanwhile, the vertical baffle 5 divides the vertical smoke outlet into an upstream part and a downstream part, the area ratio of the left side and the right side of the smoke outlet can be adjusted by moving the vertical baffle 5 left and right according to the distribution condition of smoke at the upstream and downstream parts, and more smoke outlet areas are distributed for one side with more smoke, so that the smoke exhaust effect is enhanced.
In the above embodiment, 3 examples are listed to realize the above technical solution:
example 1
The embodiment is that jib 1 is equipped with 4, evenly distributed on fixed frame 2, 1 upper portion of jib is equipped with the inflation screw, fixes in the below of exhaust port, and frame 2 is the rectangle. The length of the suspender 1 is not more than the height of the vertical baffle 5, and when the vertical baffle 5 rises to the highest position, the closing effect of the vertical shaft can be ensured, and the requirement of a specific working condition is met. The frame rail 21 is a rail groove, and the limiting frame module is provided with a frame roller matched with the rail groove, so that the matched resistance can be reduced. The frame rollers include a frame limit roller 34 and a frame driven roller 35. The baffle rail 61 is a rail groove, and two ends of the rail groove are provided with limiting devices, such as limiting protrusions, to prevent the translation device 52 from separating from the rail groove.
Example 2
In this embodiment, two gear compartments 32 are provided with bearing holes relatively, bearings 321 are arranged in the bearing holes, a transmission shaft 41 is horizontally arranged between the two bearings 321 through a limiting frame 3, a baffle gear 4 is installed on the transmission shaft 41, and the rack 51 and the baffle gear 4 are more reasonably and simply matched by the arrangement of the transmission shaft 41, so that the stability and the synchronism of the operation of the equipment are ensured. The two baffle racks 51 can be matched with the transmission shaft 41, and the two ends of the vertical baffle 5 are simultaneously braked, so that the vertical baffle 5 can run more stably. The brake mechanism also includes a power supply and a controller for controlling the automated operation of each motor.
Example 3
In this embodiment, the braking mechanism includes a limiting frame moving motor 36, and the limiting frame moving motor 36 is linked with the limiting roller 34 of the frame through a belt, so as to control the horizontal movement of the vertical baffle 5. The translation device 52 is a translation roller. The translation rollers are symmetrically arranged on two sides of the vertical baffle 5 respectively, and the distance between the translation rollers is larger than the distance between the frame limiting roller 34 and the frame driven roller 35. The lifting device 22 is an elastic connecting rope, a fireproof and high-temperature-resistant nylon rope can be selected for keeping the upward lifting tension, the upper surface of the horizontal baffle 6 is tangent to the lower part of the vertical baffle 5, and when the vertical baffle 5 rises or falls, the horizontal baffle 6 keeps moving synchronously. And a heat insulation cover 7 is arranged outside the braking mechanism.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A shaft fume extractor comprising a boom (1), characterized in that: a frame (2) is fixed at the lower end of the suspender (1), two opposite edges are arranged on the frame (2), frame rails (21) which are parallel to each other are horizontally arranged on the upper end faces of opposite sides respectively, the two frame rails (21) jointly bear a limiting frame module which can move along the frame rails (21), the limiting frame module comprises an I-shaped hollow limiting frame (3), a braking mechanism is arranged on the limiting frame (3), the braking mechanism comprises a baffle plate lifting motor (31), hollow cavities at the two ends of the limiting frame (3) are gear cabins (32), baffle plate gears (4) are arranged in the gear cabins (32), the baffle plate lifting motor (31) is linked with the baffle plate gears (4), a cavity in the middle of the limiting frame (3) is a vertical baffle plate limiting cabin (33), vertical baffle plates (5) are arranged in the vertical baffle plate limiting cabin (33) in a sliding fit mode, and baffle plate racks (51) which are connected with the baffle plate gears (4) are vertically arranged on the vertical baffle plates (5); the frame (2) is provided with a lifting device (22), the lower end of the lifting device (22) is fixed with a horizontal baffle plate (6), the upper end face of the horizontal baffle plate (6) is provided with a baffle plate rail (61) parallel to the frame rail (21), and the lower part of the vertical baffle plate (5) is provided with a translation device (52) matched with the baffle plate rail (61).
2. A shaft smoke exhaust system according to claim 1 wherein the length of the boom (1) is no greater than the height of the vertical baffles (5).
3. A shaft smoke exhaust device according to claim 1, wherein the two gear chambers (32) are provided with bearing holes oppositely, bearings (321) are arranged in the bearing holes, a transmission shaft (41) is horizontally arranged between the two bearings (321) through the limiting frame (3), and the baffle gear (4) is arranged on the transmission shaft (41).
4. A shaft smoke evacuation system according to claim 3 wherein there are two of said barrier racks (51).
5. A shaft smoke exhaust device according to claim 1, characterized in that the frame rail (21) is a rail groove, the limit frame module is provided with frame rollers matched with the rail groove, and the frame rollers comprise a frame limit roller (34) and a frame driven roller (35).
6. A shaft smoke exhaust device according to claim 5, characterized in that the brake mechanism comprises a limit frame moving motor (36), and the limit frame moving motor (36) is linked with the limit roller (34).
7. A shaft smoke exhaust system according to claim 1 wherein the baffle rail (61) is a rail groove.
8. A shaft smoke evacuation system as claimed in claim 7 wherein said translation means (52) is a translation roller.
9. A shaft smoke exhaust device according to claim 1, wherein the lifting device (22) is an elastic connecting rope.
10. A shaft smoke evacuation system as claimed in claim 1 wherein said braking mechanism is externally provided with a heat shield (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110395894.9A CN113279803B (en) | 2021-06-26 | 2021-06-26 | Shaft fume extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110395894.9A CN113279803B (en) | 2021-06-26 | 2021-06-26 | Shaft fume extractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113279803A true CN113279803A (en) | 2021-08-20 |
| CN113279803B CN113279803B (en) | 2022-05-17 |
Family
ID=77276763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110395894.9A Active CN113279803B (en) | 2021-06-26 | 2021-06-26 | Shaft fume extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113279803B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944300A (en) * | 2021-09-14 | 2022-01-18 | 广州地铁设计研究院股份有限公司 | Hydrodynamic force anti-backflow air shaft |
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|---|---|---|---|---|
| RU2123116C1 (en) * | 1997-06-10 | 1998-12-10 | Санкт-Петербургский государственный горный институт им.Г.В.Плеханова (технический университет) | Ventilation gate for railroad tunnel |
| CN2319083Y (en) * | 1996-02-07 | 1999-05-19 | 郑荣俊 | Folding panel smoke outlet |
| CN108590729A (en) * | 2018-03-12 | 2018-09-28 | 中铁第四勘察设计院集团有限公司 | A kind of high hermetic type smoke outlet device |
| CN110230494A (en) * | 2019-07-10 | 2019-09-13 | 合肥工业大学 | A kind of anti-auxiliary device for suctioning through smoke evacuation of tunnel shaft |
| CN110566260A (en) * | 2019-09-29 | 2019-12-13 | 合肥工业大学 | movable side direction fume extractor in tunnel |
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| CN111608717A (en) * | 2020-05-25 | 2020-09-01 | 中国矿业大学 | Plate-mouth coupling type smoke exhaust device |
-
2021
- 2021-06-26 CN CN202110395894.9A patent/CN113279803B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319083Y (en) * | 1996-02-07 | 1999-05-19 | 郑荣俊 | Folding panel smoke outlet |
| RU2123116C1 (en) * | 1997-06-10 | 1998-12-10 | Санкт-Петербургский государственный горный институт им.Г.В.Плеханова (технический университет) | Ventilation gate for railroad tunnel |
| CN108590729A (en) * | 2018-03-12 | 2018-09-28 | 中铁第四勘察设计院集团有限公司 | A kind of high hermetic type smoke outlet device |
| CN110230494A (en) * | 2019-07-10 | 2019-09-13 | 合肥工业大学 | A kind of anti-auxiliary device for suctioning through smoke evacuation of tunnel shaft |
| CN210622834U (en) * | 2019-09-06 | 2020-05-26 | 武汉科技大学 | Smoke outlet flow guiding device of tunnel side key smoke exhaust system |
| CN110566260A (en) * | 2019-09-29 | 2019-12-13 | 合肥工业大学 | movable side direction fume extractor in tunnel |
| CN111608717A (en) * | 2020-05-25 | 2020-09-01 | 中国矿业大学 | Plate-mouth coupling type smoke exhaust device |
Non-Patent Citations (1)
| Title |
|---|
| 季经纬 等: "排烟口附加组合挡板对隧道火灾排烟效果的模拟研究", 《消防科学与技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944300A (en) * | 2021-09-14 | 2022-01-18 | 广州地铁设计研究院股份有限公司 | Hydrodynamic force anti-backflow air shaft |
| CN113944300B (en) * | 2021-09-14 | 2023-03-17 | 广州地铁设计研究院股份有限公司 | Hydrodynamic force anti-backflow air shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113279803B (en) | 2022-05-17 |
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