CN114708706A - Visual alarm device based on ventilation of railway tunnel - Google Patents
Visual alarm device based on ventilation of railway tunnel Download PDFInfo
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- CN114708706A CN114708706A CN202210629036.0A CN202210629036A CN114708706A CN 114708706 A CN114708706 A CN 114708706A CN 202210629036 A CN202210629036 A CN 202210629036A CN 114708706 A CN114708706 A CN 114708706A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 74
- 230000000007 visual effect Effects 0.000 title claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 125000003003 spiro group Chemical group 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 239000007921 spray Substances 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 11
- 239000006004 Quartz sand Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 abstract 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
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- 239000004575 stone Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/02—Audible signalling systems; Audible personal calling systems using only mechanical transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a visual alarm device based on railway tunnel ventilation, which comprises: the visual alarm structure is characterized in that a plurality of groups of fixing frames are uniformly arranged on the visual alarm structure, linear differential temperature fire detectors are arranged on two sides of each fixing frame, and a ventilation structure is arranged in the middle of each fixing frame through a support; the mounting box welding is in the bottom of ventilation structure, and the inside movable mounting of mounting box has the fixed block, and visual camera is installed to the spiro union on the fixed block simultaneously, installs the structure of strikeing on the lateral wall of ventilation structure. According to the visual alarm device based on the ventilation of the railway tunnel, the mounting seat drives the two groups of rubber strips on the mounting seat to rotate, the rubber strips knock the outer side wall of the ventilation structure through steel balls on the rubber strips to cause sound, and the position where the ventilation structure collapses can be quickly positioned; the trapped personnel can be quickly positioned, and the rescue difficulty is reduced.
Description
Technical Field
The invention relates to the field of tunnels, in particular to a visual alarm device based on railway tunnel ventilation.
Background
With the development requirement of a traffic network, the tunnel is used as an engineering building of an underground passage, and has incomparable advantages compared with other engineering; in recent years, the scale and number of underground tunnel construction generally show an increasing trend; with the development of capital construction in recent years in China, tunnels can be seen in many places, wherein the highway tunnels and the railway tunnels are the most common, and because the territorial area of China is large, the geology of many places has great difference, for example, the geology of some places is soft, which brings about not little challenge to the construction of the tunnels.
At present, a tunnel often passes through karst geology when being built, and as karst morphological characteristics mainly comprise a karst ditch, an underground river, a karst cave and the like, when the tunnel is put into operation, collapse accidents easily happen under the condition of earthquakes or unstable tunnels, when the tunnel collapses, people trapped inside the tunnel for a long time are seriously lost, loud knocking work cannot be carried out on metal objects, rescue workers cannot receive distress signals, and the trapped people cannot be quickly positioned, so that the difficulty of rescue is increased.
Disclosure of Invention
The invention provides a visual alarm device based on railway tunnel ventilation in order to make up for market vacancy.
The invention aims to provide a visual alarm device based on railway tunnel ventilation, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a visual alarm device based on ventilation of a railway tunnel, comprising:
the visual alarm structure is characterized in that a plurality of groups of fixing frames are uniformly arranged on the visual alarm structure, linear differential temperature fire detectors are arranged on two sides of each fixing frame, and a ventilation structure is arranged in the middle of each fixing frame through a support; the mounting box is welded at the bottom of the ventilation structure, a fixing block is movably mounted in the mounting box, a visual camera is screwed on the fixing block, a knocking structure is mounted on the side wall of the ventilation structure, and spraying fire extinguishing structures are arranged on two sides of the visual alarm structure;
the utility model discloses a structure of strikeing, strike fixed frame internally mounted of structure and have a drive structure, install the rubber strip through the bolt on the mount pad simultaneously, and the one end and the steel ball fixed connection of mount pad are kept away from to the rubber strip, the drive structure includes first worm wheel, first worm, the integral key shaft, the spline section of thick bamboo, the movable transmission seat, servo electronic jar, second worm and second worm wheel, and the mount pad drives through first worm wheel, first worm wheel and first worm meshing, and the axostylus axostyle and the spline shaft fixed connection of first worm, the integral key shaft is pegged graft in the inside of spline section of thick bamboo simultaneously, and the activity of the spline section of thick bamboo outside is provided with the movable transmission seat, the movable transmission seat drives through servo electronic jar and goes up and down, spline bottom of the section of thick bamboo portion and second worm fixed connection, and second worm wheel meshing.
Preferably, the spraying fire extinguishing structure, the communicating pipe, the water pipes, the filtering structure, the water collecting tank, the well cover, the spray head and the booster pump are arranged in the water tank, and a water outlet pipe of the booster pump is communicated with the plurality of groups of water pipes; the utility model discloses a tunnel body, including tunnel body, visual alarm structure, multiunit shower nozzle, filtration, water catch bowl, water pipe, spray fire extinguishing structure, and spray fire extinguishing structure's water pipe inlay and install on the inner wall of tunnel body, even spiro union is installed to the while on the water pipe multiunit shower nozzle to the ground bottom of tunnel body is provided with filtration, and filtration's downside is provided with the water catch bowl, and water catch bowl internally mounted has communicating pipe simultaneously, and the end intercommunication setting of intaking of communicating pipe and booster pump, and visual alarm structure installs the top at the tunnel body.
Preferably, the booster pump is installed in the mounting groove of seting up in tunnel body bottom, and the mounting groove covers through the refractory slab, and the water catch bowl passes through booster pump, communicating pipe and water pipe intercommunication setting simultaneously.
Preferably, the filtration includes cobble layer, quartz sand layer, activated carbon layer, loose cotton layer and metal orifice plate, and the metal orifice plate covers the surface of the upside at the water catch bowl, and the surface covering of metal orifice plate has loose cotton layer simultaneously, and the surface covering of loose cotton layer has activated carbon layer, and the surface on activated carbon layer has laid the quartz sand layer, and the surface on quartz sand layer has laid the cobble layer simultaneously.
Preferably, the visual alarm structure comprises a first air speed sensor, a linear differential temperature fire detector, a fixing frame, a screw rod, a visual camera, a fixing block, a mounting box, a control box, an alarm and a second air speed sensor, the second air speed sensor is arranged inside a ventilation pipeline of the ventilation structure, and the first air speed sensor is arranged outside the ventilation pipeline of the ventilation structure.
Preferably, the linear differential temperature fire detector is electrically connected with a lower computer in the control box, the lower computer is electrically connected with a terminal and a fire alarm in the central control room through cables, and the fixing frame is arranged in an arc shape at the top of the tunnel body.
Preferably, the mounting box is internally and movably provided with a screw rod, the screw rod is in threaded connection with the inside of the fixing block, the end part of the screw rod is fixedly connected with an output shaft of the motor, the motor is installed inside the mounting box through the base, and the fixing block is used for transversely driving the visual camera.
Preferably, strike the structure and include fixed frame, microcontroller, drive structure, mount pad, rubber strip, steel ball and inclination sensor, and install inclination sensor on the fixed frame, inclination sensor and microcontroller electric connection simultaneously.
Preferably, the symmetry is provided with two sets of rubber strips on the mount pad, and the rubber strip strikes the metal lateral wall of ventilation structure through the steel ball on it and works, and the internally mounted of fixed frame has uninterrupted power source simultaneously, and inclination sensor and microcontroller pass through uninterrupted power source and supply power.
Preferably, tunnel body is inside evenly to be provided with multiunit and sprays fire extinguishing structure, visual alarm structure, ventilation structure and strike the structure, and sprays fire extinguishing structure, visual alarm structure, ventilation structure and strikes the safety protection system that the structure combined together and constitutes the tunnel body, is separated by 500m between two sets of adjacent safety protection systems simultaneously.
Compared with the prior art, the invention has the beneficial effects that:
1. detecting the wind speed inside the ventilation pipe through a first wind speed sensor; the wind speed outside the ventilation pipe is detected through a second wind speed sensor; when the difference between the wind speed value detected by the first wind speed sensor and the wind speed value detected by the second wind speed sensor is smaller than a preset value, the inner wall of a ventilation pipe of the ventilation structure is blocked, and a central control room worker informs field workers of maintenance and cleaning work, otherwise, the ventilation structure is in a normal working state, and the ventilation effect in the tunnel is ensured;
2. the switch of the booster pump is turned on, the booster pump enables water in the water collecting tank to enter the water pipe from the communicating pipe and to be sprayed out from the spray head, and therefore the incipient fire is eliminated, and the incipient fire is prevented from being expanded to a large-scale fire;
3. the mounting seat drives the two groups of rubber strips to rotate, the rubber strips knock the outer side wall of the ventilation structure through steel balls on the rubber strips to cause sound, and the position where the air bag collapses can be quickly positioned; the trapped personnel can be quickly positioned, and the rescue difficulty is reduced.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic diagram of a filter arrangement according to the present invention;
FIG. 3 is a schematic partial cross-sectional view of a tunnel body of the structure of the present invention;
FIG. 4 is a schematic view of the top structure of the tunnel body of the structure of the present invention;
FIG. 5 is a schematic view of the overall ventilation of the tunnel body of the inventive structure;
FIG. 6 is a schematic view of a mounting box of the construction of the present invention;
FIG. 7 is a schematic view of the installation of the visual alarm structure and the ventilation structure of the present invention;
FIG. 8 is a schematic cross-sectional view taken along line A-A of FIG. 7 of the structure of the present invention;
FIG. 9 is a logic diagram of the two sets of wind speed sensors of the present invention;
FIG. 10 is a system diagram of the operating principle of the line type differential temperature fire detector constructed according to the present invention;
fig. 11 is a schematic diagram of a driving structure of the present invention.
In the figure: 1. a spraying fire extinguishing structure; 11. a communicating pipe; 12. a water pipe; 13. a filter structure; 131. a cobble layer; 132. a quartz sand layer; 133. an activated carbon layer; 134. a bulky cotton layer; 135. a metal orifice plate; 14. a water collection tank; 15. a well cover; 16. a spray head; 17. a booster pump; 2. a visual alarm structure; 20. a first wind speed sensor; 21. a linear differential temperature fire detector; 22. a fixed mount; 23. a screw rod; 24. a visual camera; 25. a fixed block; 26. mounting a box; 27. a control box; 28. an alarm; 29. a second wind speed sensor; 3. a ventilation structure; 4. a knocking structure; 41. a fixing frame; 42. a microcontroller; 43. a drive structure; 431. a first worm gear; 432. a first worm; 433. a spline shaft; 434. a spline cylinder; 435. a movable transmission seat; 436. a servo electric cylinder; 437. a second worm; 438. a second worm gear; 44. a mounting seat; 45. a rubber strip; 46. steel balls; 47. an inclination angle sensor; 5. a tunnel body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-11, the present invention provides a technical solution: a visual alarm device based on ventilation of a railway tunnel, comprising: a visual alarm structure 2 and a knocking structure 4;
the fixing frames 22 on the visual alarm structure 2 are uniformly arranged into a plurality of groups, the two sides of the fixing frame 22 are provided with the linear type differential temperature fire detectors 21, and the middle part of the fixing frame 22 is provided with the ventilation structure 3 through a bracket; the mounting box 26 is welded at the bottom of the ventilation structure 3, a fixing block 25 is movably mounted inside the mounting box 26, a visual camera 24 is screwed on the fixing block 25, the knocking structure 4 is mounted on the side wall of the ventilation structure 3, and the spraying fire-extinguishing structure 1 is arranged on two sides of the visual alarm structure 2;
the driving structure 43 is arranged inside the fixing frame 41 of the knocking structure 4, and the rubber strip 45 is arranged on the mounting seat 44 through bolts, and one end of the rubber strip 45 far away from the mounting seat 44 is fixedly connected with the steel ball 46, the driving structure 43 comprises a first worm wheel 431, a first worm 432, a spline shaft 433, a spline cylinder 434, a movable transmission seat 435, a servo electric cylinder 436, a second worm 437 and a second worm wheel 438, and the mount 44 is driven by the first worm wheel 431, the first worm wheel 431 is engaged with the first worm 432, the shaft lever of the first worm 432 is fixedly connected with the spline shaft 433, the spline shaft 433 is inserted into the spline cylinder 434, and a movable transmission seat 435 is movably arranged on the outer side of the spline cylinder 434, the movable transmission seat 435 is driven to lift through a servo electric cylinder 436, the bottom of the spline cylinder 434 is fixedly connected with a second worm 437, and the second worm 437 is meshed with a second worm wheel 438.
The working principle is as follows: when tunnel body 5 takes place to cave in, ventilation structure 3 takes place to incline this moment, inclination sensor 47 detects out ventilation structure 3 and takes place to incline, judge that tunnel body 5 takes place to cave in, microcontroller 42 received the signal this moment, microcontroller 42 starts the inside two-way motor's of visual alarm structure 2 switch, two-way motor's one end pivot is fixed with lead screw 23, two-way motor's the other end drives second worm wheel 438 and rotates, second worm wheel 438 drives mount pad 44 through a series of transmission structure and rotates, mount pad 44 drives two sets of rubber strip 45 above that and rotates the work, and through steel ball 46 above that, beat ventilation structure 3 work, be convenient for rescue personnel carry out quick rescue work to stranded personnel.
As shown in fig. 11: the driving structure 43 comprises a first worm wheel 431, a first worm 432, a spline shaft 433, a spline cylinder 434, a movable transmission holder 435, a servo electric cylinder 436, a second worm 437 and a second worm wheel 438, and the working mode of the driving structure 43 is as follows: when the tunnel is in normal state, integral key shaft 433, spline section of thick bamboo 434 are in the state that breaks away from, and when the tunnel was in the state of collapsing, integral key shaft 433, spline section of thick bamboo 434 were in grafting driven state, through two-way motor, can drive alarm work to visual alarm structure 2, realize visual alarm structure 2 and strike the contact between the structure 4.
As shown in fig. 11: the drive structure 43 works in the following manner: the second worm wheel 438 drives the second worm 437 to rotate, the second worm 437 drives the spline shaft 433 to rotate through the spline cylinder 434, the spline shaft 433 drives the first worm wheel 431 to rotate through the first worm 432, and the first worm wheel 431 rotates to drive the mounting seat 44 to work.
The second embodiment is as follows: the embodiment is further limited by the first specific embodiment, the sprinkling fire extinguishing structure 1, the communicating pipe 11, the water pipe 12, the filtering structure 13, the water collecting tank 14, the well lid 15, the spray head 16 and the booster pump 17, and the water outlet pipe of the booster pump 17 is communicated with the multiple groups of water pipes 12; the spraying fire extinguishing structure 1 is installed on the lower side inside the tunnel body 5, a water pipe 12 of the spraying fire extinguishing structure 1 is installed on the inner wall of the tunnel body 5 in an embedded mode, meanwhile, a plurality of groups of spray heads 16 are evenly installed on the water pipe 12 in a threaded mode, a filtering structure 13 is arranged at the bottom of the ground of the tunnel body 5, a water collecting tank 14 is arranged on the lower side of the filtering structure 13, a communicating pipe 11 is installed inside the water collecting tank 14, the communicating pipe 11 is communicated with a water inlet end of a booster pump 17, and a visual alarm structure 2 is installed on the top of the tunnel body 5;
as shown in fig. 1: the working mode of the spraying fire extinguishing structure 1 is as follows: when the initial fire disaster occurs in the tunnel body 5, the central control personnel can remotely operate to open the switch of the booster pump 17, the booster pump 17 enables the water in the water collecting tank 14 to enter the water pipe 12 from the communicating pipe 11 and spray out from the spray head 16, the initial fire disaster is eliminated, and the initial fire disaster is prevented from being expanded to a large fire disaster.
The third concrete implementation mode: in the second embodiment, the booster pump 17 is installed in an installation groove formed at the bottom of the tunnel body 5, the installation groove is covered by a refractory plate, and the water collecting tank 14 is communicated with the water pipe 12 through the booster pump 17 and the communicating pipe 11.
As shown in fig. 1: the booster pump 17 is installed in the mounting groove of seting up in tunnel body 5 bottom, and the mounting groove covers through the refractory slab, and when the conflagration breaing out in tunnel body 5, the setting of refractory slab this moment can avoid high temperature environment to cause the damage to booster pump 17.
The fourth concrete implementation mode: in this embodiment, which is a further limitation of the second embodiment, the filtering structure 13 includes a cobble stone layer 131, a quartz sand layer 132, an activated carbon layer 133, a loose cotton layer 134 and a metal hole plate 135, wherein the metal hole plate 135 covers the upper surface of the water collecting tank 14, the loose cotton layer 134 covers the surface of the metal hole plate 135, the activated carbon layer 133 covers the surface of the loose cotton layer 134, the quartz sand layer 132 covers the surface of the activated carbon layer 133, and the cobble stone layer 131 covers the surface of the quartz sand layer 132.
As shown in fig. 1: when water accumulates in the tunnel body 5, the well cover 15 can be opened, the accumulated water enters the interior of the well and is collected in the water collecting tank 14 under the filtration of the filtering structure 13, and the liquid in the water collecting tank 14 can be used for extinguishing fire;
the accumulated water enters the water collecting tank 14 under the filtering operation of the cobble layer 131, the quartz sand layer 132, the activated carbon layer 133, the fluffy cotton layer 134 and the metal hole plate 135, so as to prevent the impurity particles from filtering the water pipe 12 and the spray head 16.
The fifth concrete implementation mode: the present embodiment is further limited to the first embodiment, the visual alarm structure 2 includes a first wind speed sensor 20, a linear type differential temperature fire detector 21, a fixing frame 22, a screw 23, a visual camera 24, a fixing block 25, a mounting box 26, a control box 27, an alarm 28 and a second wind speed sensor 29, the second wind speed sensor 29 is disposed inside the ventilation duct of the ventilation structure 3, and the first wind speed sensor 20 is disposed outside the ventilation duct of the ventilation structure 3.
As shown in fig. 9: the wind speed inside the ventilation duct is detected by a first wind speed sensor 20; the wind speed outside the ventilation pipe is detected by a second wind speed sensor 29; when the difference between the wind speed value detected by the first wind speed sensor 20 and the wind speed value detected by the second wind speed sensor 29 is smaller than the preset value, it indicates that the inner wall of the ventilation pipe of the ventilation structure 3 is blocked, and the central control room personnel inform field personnel to perform maintenance and cleaning work, otherwise, it indicates that the ventilation structure 3 is in a normal working state.
As shown in fig. 1-4: the visual alarm structure 2 works in the following way: the linear type differential temperature fire detector 21 can detect fire in the tunnel body 5;
along with the temperature change in the tunnel body 5, the resistance of the thermosensitive alloy wire in the linear differential temperature fire detector 21 changes correspondingly, the lower computer in the control box 27 converts the detected resistance value into digital quantity, and sends the digital quantity to the fire alarm controller, and the fire alarm controller displays, analyzes and processes the temperature value, and can monitor and alarm the temperature at the same time.
The sixth specific implementation mode: in the fifth embodiment, the linear differential temperature fire detector 21 is electrically connected to the lower computer inside the control box 27, the lower computer is electrically connected to the terminal machine and the fire alarm inside the central control room through cables, and the fixing frame 22 is arc-shaped on the top of the tunnel body 5.
As shown in fig. 1 and 10: the tunnel fire alarm system consists of a fire alarm controller, a lower computer, a linear differential temperature fire detector 21 and a manual fire alarm button.
The seventh embodiment: the fifth embodiment is further limited by the fifth embodiment, a screw 23 is movably mounted inside the mounting box 26, the screw 23 is screwed inside the fixing block 25, meanwhile, the end of the screw 23 is fixedly connected with an output shaft of a motor, the motor is mounted inside the mounting box 26 through a base, and the fixing block 25 drives the visible camera 24 transversely.
As shown in fig. 1: through visual camera 24, can carry out visual detection work to the inside condition of tunnel body 5, through visual camera 24's setting, can carry out transmission work with the inside condition of tunnel body 5 to transmit and show on the display screen of well accuse indoor portion.
The specific implementation mode is eight: the knocking structure 4 includes a fixing frame 41, a microcontroller 42, a driving structure 43, a mounting seat 44, a rubber strip 45, steel balls 46 and a tilt angle sensor 47, wherein the fixing frame 41 is provided with the tilt angle sensor 47, and the tilt angle sensor 47 is electrically connected with the microcontroller 42.
As shown in fig. 7-8: the knocking structure 4 works in the following manner: the mount pad 44 drives the two sets of rubber strips 45 thereon to rotate, and the rubber strips 45 beat the outer side wall of the ventilation structure 3 through the steel balls 46 thereon, so that sound is generated, and the position where the collapse occurs can be quickly positioned.
The specific implementation method nine: the eighth embodiment is a further limitation of the eighth embodiment, two sets of rubber strips 45 are symmetrically arranged on the mounting seat 44, the rubber strips 45 knock the metal outer side wall of the ventilation structure 3 through steel balls 46 on the rubber strips, an uninterruptible power supply is arranged inside the fixing frame 41, and the inclination angle sensor 47 and the microcontroller 42 are powered by the uninterruptible power supply.
As shown in fig. 8: the inclination angle sensor 47 and the microcontroller 42 are independently powered by an uninterruptible power supply, and when the internal circuit of the tunnel body 5 is damaged, the knocking structure 4 can also perform normal alarm work.
The detailed implementation mode is ten: this embodiment is the further injeciation of embodiment one, and tunnel body 5 is inside evenly to be provided with multiunit and sprays fire extinguishing structure 1, visual alarm structure 2, ventilation structure 3 and strike structure 4, and sprays fire extinguishing structure 1, visual alarm structure 2, ventilation structure 3 and strike structure 4 and combine together and constitute tunnel body 5's safety protection system, is separated by 500m between two sets of adjacent safety protection systems simultaneously.
Divide into a plurality of regions with the longer tunnel body 5 of length, every regional inside all is provided with the safety protection system, realizes carrying out multipoint formula visual detection and alarm work to tunnel body 5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A visual alarm device based on ventilation of railway tunnel, characterized in that includes:
the system comprises visual alarm structures (2), wherein fixing frames (22) on the visual alarm structures (2) are uniformly arranged into a plurality of groups, linear differential temperature fire detectors (21) are arranged on two sides of the fixing frames (22), and ventilation structures (3) are arranged in the middle of the fixing frames (22) through supports; the mounting box (26) is welded at the bottom of the ventilation structure (3), the fixing block (25) is movably mounted inside the mounting box (26), meanwhile, the fixing block (25) is in threaded connection with the visual camera (24), the knocking structure (4) is mounted on the side wall of the ventilation structure (3), and the spraying fire extinguishing structures (1) are arranged on two sides of the visual alarm structure (2);
the knocking structure (4) is characterized in that a driving structure (43) is installed inside a fixing frame (41) of the knocking structure (4), a rubber strip (45) is installed on an installation seat (44) through a bolt, one end, far away from the installation seat (44), of the rubber strip (45) is fixedly connected with a steel ball (46), the driving structure (43) comprises a first worm wheel (431), a first worm (432), a spline shaft (433), a spline cylinder (434), a movable transmission seat (435), a servo electric cylinder (436), a second worm (437) and a second worm wheel (438), the installation seat (44) is driven through the first worm wheel (431), the first worm wheel (431) is meshed with the first worm (432), a shaft rod of the first worm (432) is fixedly connected with the spline shaft (433), the spline shaft (433) is inserted into the spline cylinder (434), and the movable transmission seat (435) is movably arranged on the outer side of the spline cylinder (434), the movable transmission seat (435) is driven to lift through a servo electric cylinder (436), the bottom of the spline cylinder (434) is fixedly connected with a second worm (437), and the second worm (437) is meshed with a second worm wheel (438).
2. A visual warning device based on ventilation of railway tunnels according to claim 1, characterized in that: the spraying fire extinguishing system comprises a spraying fire extinguishing structure (1), a communicating pipe (11), water pipes (12), a filtering structure (13), a water collecting tank (14), a well cover (15), a spray head (16) and a booster pump (17), wherein a water outlet pipe of the booster pump (17) is communicated with a plurality of groups of water pipes (12); spray the inside downside of installing in tunnel body (5) of structure of putting out a fire (1), and spray water pipe (12) of structure of putting out a fire (1) and inlay and install on the inner wall of tunnel body (5), even spiro union is installed on water pipe (12) simultaneously and is had multiunit shower nozzle (16), and the ground bottom of tunnel body (5) is provided with filtration (13), and the downside of filtration (13) is provided with water catch bowl (14), water catch bowl (14) internally mounted has communicating pipe (11) simultaneously, and communicating pipe (11) and booster pump (17) intake end intercommunication setting, the top in tunnel body (5) is installed in visual alarm structure (2).
3. A visual warning device based on ventilation of railway tunnels according to claim 2, characterized in that: the booster pump (17) is installed in the installation groove of seting up in tunnel body (5) bottom, and the installation groove covers through the refractory slab, and water catch bowl (14) set up through booster pump (17), communicating pipe (11) and water pipe (12) intercommunication simultaneously.
4. The visual alarm device based on ventilation of the railway tunnel of claim 2, characterized in that: filtration (13) are including cobblestone layer (131), quartz sand layer (132), activated carbon layer (133), loose cotton layer (134) and metal orifice plate (135), and metal orifice plate (135) cover the surface of going up of water catch bowl (14), and the surface covering of metal orifice plate (135) has loose cotton layer (134) simultaneously, and the surface covering of loose cotton layer (134) has activated carbon layer (133), and quartz sand layer (132) have been laid on the surface of activated carbon layer (133), and cobblestone layer (131) have been laid on the surface of quartz sand layer (132) simultaneously.
5. A visual warning device based on ventilation of railway tunnels according to claim 1, characterized in that: visual alarm structure (2) include first air velocity transducer (20), line type differential temperature fire detector (21), mount (22), lead screw (23), visual camera (24), fixed block (25), mounting box (26), control box (27), alarm (28) and second air velocity transducer (29), and second air velocity transducer (29) set up inside the ventilation pipe of ventilation structure (3), and first air velocity transducer (20) set up in the ventilation pipe outside of ventilation structure (3) simultaneously.
6. A visual alarm device based on ventilation of railway tunnels according to claim 5, characterized in that: the linear differential temperature fire detector (21) is electrically connected with a lower computer in the control box (27), the lower computer is electrically connected with a terminal and a fire alarm in the central control room through cables, and the fixing frame (22) is arranged at the top of the tunnel body (5) in an arc shape.
7. A visual alarm device based on ventilation of railway tunnels according to claim 5, characterized in that: the mounting box (26) is internally and movably provided with a screw rod (23), the screw rod (23) is in threaded connection with the inside of the fixing block (25), meanwhile, the end part of the screw rod (23) is fixedly connected with an output shaft of a motor, the motor is mounted inside the mounting box (26) through a machine base, and the fixing block (25) is used for transversely driving the visual camera (24).
8. A visual warning device based on ventilation of railway tunnels according to claim 1, characterized in that: the knocking structure (4) comprises a fixing frame (41), a microcontroller (42), a driving structure (43), a mounting seat (44), a rubber strip (45), steel balls (46) and an inclination angle sensor (47), the inclination angle sensor (47) is mounted on the fixing frame (41), and meanwhile the inclination angle sensor (47) is electrically connected with the microcontroller (42).
9. A visual warning device based on ventilation of railway tunnels according to claim 8, characterized in that: the utility model discloses a ventilation structure, including mount pad (44), metal lateral wall, the metal lateral wall of ventilation structure (3) is knocked work through steel ball (46) on the rubber strip (45), and the internally mounted of fixed frame (41) has uninterrupted power source simultaneously, and inclination sensor (47) and microcontroller (42) supply power through uninterrupted power source on mount pad (44) symmetry.
10. A visual warning device based on ventilation of railway tunnels according to claim 1, characterized in that: the tunnel body (5) is inside evenly to be provided with the multiunit and sprays fire extinguishing structure (1), visual alarm structure (2), ventilation structure (3) and strike structure (4), and sprays fire extinguishing structure (1), visual alarm structure (2), ventilation structure (3) and strikes structure (4) and combines together to constitute the safety protection system of tunnel body (5), is separated by 500m between two sets of adjacent safety protection systems simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210629036.0A CN114708706A (en) | 2022-06-06 | 2022-06-06 | Visual alarm device based on ventilation of railway tunnel |
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| CN202210629036.0A CN114708706A (en) | 2022-06-06 | 2022-06-06 | Visual alarm device based on ventilation of railway tunnel |
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Application publication date: 20220705 |