CN110425007A - A kind of coal mine natural fire monitoring device based on fiber-optic grating sensor - Google Patents
A kind of coal mine natural fire monitoring device based on fiber-optic grating sensor Download PDFInfo
- Publication number
- CN110425007A CN110425007A CN201910691142.XA CN201910691142A CN110425007A CN 110425007 A CN110425007 A CN 110425007A CN 201910691142 A CN201910691142 A CN 201910691142A CN 110425007 A CN110425007 A CN 110425007A
- Authority
- CN
- China
- Prior art keywords
- wall
- water
- elastic
- fiber
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000012806 monitoring device Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000007921 spray Substances 0.000 claims abstract description 82
- 238000003860 storage Methods 0.000 claims abstract description 54
- 238000012856 packing Methods 0.000 claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 53
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 24
- 239000004088 foaming agent Substances 0.000 claims description 18
- 238000005507 spraying Methods 0.000 claims description 14
- 230000002209 hydrophobic effect Effects 0.000 claims description 12
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 12
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 238000000280 densification Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 4
- 238000003973 irrigation Methods 0.000 abstract description 3
- 230000002262 irrigation Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 23
- 239000000243 solution Substances 0.000 description 22
- 229960004424 carbon dioxide Drugs 0.000 description 12
- 239000000835 fiber Substances 0.000 description 12
- 239000006260 foam Substances 0.000 description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 description 11
- 239000001569 carbon dioxide Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 238000009529 body temperature measurement Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000011259 mixed solution Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- 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
- E21F3/00—Cooling or drying of air
-
- 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
-
- 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
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)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention belongs to coal-mine fire monitoring technical field, specifically a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor；The bottom end two sides in tunnel are arranged in the aqueduct, and the end of aqueduct is connect with high-pressure hydraulic pump；The water storage wall is uniformly laid on the inner wall in tunnel, and portion offers storage chamber within the walls for water storage；The bottom end of the water storage wall is connected to aqueduct, and the top of water storage wall is connected on fixed siphunculus；Water spray raised line is provided on the outer wall of the water storage wall；Elastic packing ball is provided in the storage chamber, and elastic packing ball is slidably arranged in water spray raised line；The bottom end in the tunnel is equipped with multiple fiber-optic grating sensors；The grating adjusting apparatus is to be electrically connected with controlling terminal；Controlling terminal can control the irrigation pressure of high-pressure hydraulic pump, and then adjustable water spray raised line sprays the area of water curtain in tunnel, and then can carry out cooling fire extinguishing processing with the high temperature that temperature in tunnel or generation fire generate.
Description
Technical field
The invention belongs to coal-mine fire monitoring technical field, specifically a kind of coal mine based on fiber-optic grating sensor
Natural fire monitoring device.
Background technique
The direct measurement to physical quantitys such as temperature, strains may be implemented in fiber-optic grating sensor.Due to optic fiber grating wavelength
Sensitive simultaneously to temperature and strain, i.e. temperature and strain causes fiber grating coupled wavelength mobile simultaneously, so that passing through measurement light
The fine long movement of coupled wave of grating can not be distinguish temperature and strain.
Coal mine is Frequent Accidents place, especially coal mine spontaneous fire, and when freely burning fire occurs for coal mine, risk is extremely
Seriously, not only ratio is very big, but also area coverage is quite extensive.A possibility that there are spontaneous fires in each mining area, coal mine is every
A freely burning fire, which occurs, will will cause huge coal resources destruction and economic loss, be accompanied by a large amount of casualties.
Existing natural fire monitoring device is difficult to monitor the distribution of temperature according to fiber-optic grating sensor, in turn
Control extinguishing device carries out extinguishing operation to the temperature that different zones generate, and then extinguishing device is made to generate certain waste, and
It is difficult to reach efficient fire extinguishing effect.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of coal mine natural fire based on fiber-optic grating sensor proposed by the present invention
Calamity monitoring device, present invention is mainly used for solve existing existing natural fire monitoring device to be difficult to according to fiber-optic grating sensor
It monitors the distribution of temperature, and then controls extinguishing device and extinguishing operation is carried out to the temperature that different zones generate, and then make
Extinguishing device generates certain waste, and is difficult to reach efficient fire extinguishing effect.
The technical solution adopted by the present invention to solve the technical problems is: of the present invention a kind of based on fiber grating biography
The coal mine natural fire monitoring device of sensor, including the spraying temperature lowering apparatus being arranged in tunnel；The whitewashing cooling device packet
Include aqueduct, high-pressure hydraulic pump, water storage wall, water spray raised line, elastic packing ball, elastic extruded tube and fixed siphunculus；The aqueduct
The bottom end two sides in tunnel are set, and the end of aqueduct is connect with high-pressure hydraulic pump, the model QDL45-20 of high-pressure hydraulic pump；Institute
It states water storage wall to be uniformly laid on the inner wall in tunnel, and portion offers storage chamber within the walls for water storage；The bottom end of the water storage wall with lead
Water pipe connection, and the top of water storage wall is connected on fixed siphunculus；It is evenly arranged with from top to bottom on the outer wall of the water storage wall
Water spray raised line, and hole for water spraying is offered on the side wall for raised line of spraying water diagonally downward, water spray raised line is connected to storage chamber；The water storage
It is intracavitary to be provided with elastic packing ball, and elastic packing ball is slidably arranged in water spray raised line, and elastic packing ball is squeezed by elasticity
Pressure pipe is connected on the side wall of fixed siphunculus, and is provided with air-exhausting duct above fixed siphunculus；The bottom end in the tunnel is equipped with more
A fiber-optic grating sensor, and model JH-GFA-A102 of fiber-optic grating sensor, and the end of fiber-optic grating sensor
It is electrically connected with grating demodulation instrument, the model WI3210B of grating demodulation instrument；The grating adjusting apparatus is to be electrically connected with controlling terminal
It connects, and controlling terminal is computer；Alarm, and the model DWJ-10 of alarm are installed on the side wall in the tunnel；It is described
High-pressure hydraulic pump and alarm equal control terminal electrical connection；When work, fiber-optic grating sensor is laid in needs respectively
Each detecting area of detection, detectable signal are transferred to grating demodulation instrument by transmission fiber, grating demodulation instrument according to wavelength not
Together, the reflection wavelength of fiber grating can be demodulated so as to calculate the temperature measurement result of each detecting area, if detecting
Temperature be higher than our preset values when or rate of temperature change be more than predetermined threshold when, grating demodulation instrument can be issued to alarm
Alarm signal and temperature signal is transmitted to controlling terminal, the controlling terminal controls height according to obtained alarm signal in turn
Water pump starting, and then extraneous water source is input in storage chamber by high-pressure hydraulic pump by aqueduct, as high-pressure hydraulic pump is continuous
To carrying out water storage in storage chamber, and then the elastic packing ball for the raised line internal slide setting that makes to spray water is in the impact force of high pressure water flow
Under be detached from out of water spray raised line, and then enter the high pressure water in storage chamber and will be sprayed by the hole for water spraying that opens up on water spray raised line
Out, and then by water spray raised line the water energy sprayed is enough to generate water curtain in tunnel, and then to carrying out cooling extinguishing operation in tunnel；
By the cooperation of multiple the water spray raised lines and elastic packing ball of setting, the temperature that can be detected according to fiber-optic grating sensor,
And then the pressure of the water spray of high-pressure hydraulic pump is controlled by controlling terminal, and then make elastic packing ball can under the impact force of hydraulic pressure
Upward sliding, and then increase the area that water spray raised line sprays the water curtain that water flow generates；It is passed by the fiber grating being arranged in tunnel
Sensor, and then the temperature of different zones in tunnel can be monitored, it can control the spray of high-pressure hydraulic pump by controlling terminal
Water pressure, and then adjustable water spray raised line sprays the area of water curtain in tunnel, and then with temperature in tunnel or fire can occur
The high temperature that calamity generates carries out cooling fire extinguishing processing.
Preferably, the elastic extruded tube is set as ripple elastic material, and is filled with sodium bicarbonate in elastic extruded tube
Solution, and the liquid level of sodium bicarbonate solution is less than the half that elasticity squeezes length of tube；It is offered inside the fixed siphunculus
Reaction chamber, and reaction chamber is connected to elastic extruded tube；Aluminum sulfate solution is filled in the reaction chamber, and the bottom end of reaction chamber is opened
Hydrophobic aeroscopic plate is provided with equipped with spray orifice, and in reaction chamber；Elastic packing ball high pressure water flow impact force in storage chamber to
When upper sliding, and then elastic extruded tube is made to generate compression, the compressed maximum distortion of elastic extruded tube of setting in storage chamber
Amount will not influence the water spray operation of water spray raised line；After elastic extruded tube is compressed, elastic hydrogen sodium is filled in elastic extruded tube
Solution can enter in reaction chamber, and then mix generation chemical reaction with the aluminum sulfate solution that reaction chamber is placed, and make in reaction chamber
A part of carbon dioxide is generated, the carbon dioxide of generation can be injected in tunnel by spray orifice, and then carry out fire extinguishing work to tunnel
Industry；The liquid level of the sodium bicarbonate solution of setting is less than the half that elasticity squeezes length of tube, convenient for being sprayed according to high-pressure hydraulic pump
Water flow pressure, and then control sodium bicarbonate solution the amount entered in reaction chamber, and then control carbon dioxide spray volume.
Preferably, the inside of the elastic packing ball offers deformation cavity, and the roof thickness for deforming cavity is less than end
The thickness of wall；The bottom end of the elasticity extruded tube is connected to by air slot with deformation cavity, and elastic extruded tube internal slide is set
It is equipped with and is slidingly sealed block；When work, the roof thickness of the deformation cavity of setting is less than the thickness of end wall, exists convenient for elastic packing ball
Rapid deformation is generated under the impact force of water flow, is quickly skidded off out of water spray raised line convenient for elastic packing ball；What is be arranged is slidingly sealed
Block meeting upward sliding under the promotion for deforming empty intracavity gas, and then the sodium bicarbonate solution of elastic extruded tube bottom end sedimentation is made to exist
The phenomenon that generating stirring, is slidingly sealed under the promotion of block, and then it is existing to prevent elastic hydrogen sodium solution from generating sedimentation in elastic extruded tube
As.
Preferably, the hydrophobic aeroscopic plate inner wall offers expansion chamber, and delivery hole is offered on the outer wall of expansion chamber；Institute
It states hydrophobic aeroscopic plate base end wall and is provided with sliding tube, and sliding tube bottom end is provided with extruding ball sealer, and squeezes and fill out in ball sealer
Filled with foaming agent；The extruding ball sealer base end wall offers expansion hole, and squeezes ball sealer and be located in spray orifice；When work, when
When mixed solution constantly reacts generation carbon dioxide inside reaction chamber, constantly increase the air pressure in reaction chamber,
And then the extruding ball sealer slide downward of hydrophobic aeroscopic plate bottom end setting is pushed to be detached from spray orifice, and then enable the carbon dioxide generated
It is enough to be sprayed in the state of high pressure；The solution generated after simultaneous reactions can be entered in sliding tube by delivery hole, so with squeeze
The foaming agent filled in compression swelling ball is mixed, and then mixed solution is enable to generate under the action of foaming agent largely
Foam, and then by expansion hole spray, further increase the liquid in reaction chamber after hybrid reaction under the action of foaming agent
The foam of generation carries out fire extinguishing effect.
Preferably, the fixed siphunculus is internally provided with elastic arc plate, and placed cavity is offered in elastic arc plate, and places
It is intracavitary to be filled with foaming agent；Spray hole is offered in the base end wall of the placed cavity, and the upper end wall of placed cavity is provided with sealing
Goalpost, and seal goalpost and be slidably arranged in spray hole；When work, when air pressure constantly increases in reaction chamber, bullet can be squeezed
Property arc plate, and then elastic arc board bottom wall is made to generate protrusion upwards, and then make to seal goalpost and skid off spray hole, is filled in placed cavity
Foaming agent can be injected in reaction chamber, and then the mixed liquid in reaction chamber is made to generate certain foam, and then be increased anti-
The efficiency for answering intracavitary foam to generate, further increases the effect of foam fire-fighting.
Preferably, siphunculus gas-guide tube is connected between the fixed siphunculus and air-exhausting duct, and control valve is provided in gas-guide tube,
And the model UQ621F of control valve, and control valve is electrically connected with controlling terminal；By squeezing in the upper end wall of the elastic arc plate
Pressing spring is connected on the inner wall of fixed siphunculus, and is squeezed spring and be located at the nozzle of gas-guide tube；When work, when being produced in reaction chamber
When biochemical reaction, controlling terminal controls control valve and opens, so when air-exhausting duct in gas enter the top of elastic arc plate,
And then make the upper surface of elastic arc plate to lower recess, and then accelerate sealing goalpost and skid off hastening for spray hole, while can squeeze
Placed cavity enables the foaming agent in placed cavity quickly to spray, and further increases the foaming effect of foaming agent；With elastic arc
Plate is constantly squeezed and deformed under the influence of gas, and then enables elastic arc plate by the fire foam of the generation in reaction chamber
It can quickly be injected in tunnel, and then increase the efficiency of the fire extinguishing in tunnel.
Beneficial effects of the present invention are as follows:
1. the present invention is by the fiber-optic grating sensor of setting in tunnel, grating demodulation instrument, can be with according to the difference of wavelength
The reflection wavelength of fiber grating is demodulated so as to calculate the temperature measurement result of each detecting area, if the temperature detected is high
When our preset values or when rate of temperature change is more than predetermined threshold, grating demodulation instrument can be issued to fire-alarm and be alarmed
Signal and to controlling terminal transmit temperature signal, controlling terminal can control the irrigation pressure of high-pressure hydraulic pump, and then can adjust
Whole water spray raised line sprays the area of water curtain in tunnel, and then can reduce the usage amount at water source, and then can be with temperature in tunnel
Or the high temperature that fire generates occurs and carries out cooling fire extinguishing processing.
2. the present invention passes through elastic packing ball in impact force upward sliding in storage chamber of high pressure water flow, and then makes bullet
Property extruded tube generates compression in storage chamber, and the compressed maximum deformation quantity of elastic extruded tube of setting will not influence water spray raised line
Water spray operation；After elastic extruded tube is compressed, elastic hydrogen sodium solution is filled in elastic extruded tube can enter reaction chamber
It is interior, and then generation chemical reaction is mixed with the aluminum sulfate solution that reaction chamber is placed, make to generate a part of carbon dioxide in reaction chamber,
The carbon dioxide of generation can be injected in tunnel by spray orifice, and then carry out extinguishing operation to tunnel.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is perspective view of the invention；
Fig. 2 is main view of the invention；
Fig. 3 is partial enlarged view at A in Fig. 2 of the present invention；
In figure: tunnel 1, spraying temperature lowering apparatus 2, aqueduct 21, high-pressure hydraulic pump 22, water storage wall 23, storage chamber 231, water spray
Raised line 24, elastic packing ball 25, deformation cavity 251, elastic extruded tube 26, is slidingly sealed block 261, fixed siphunculus at hole for water spraying 241
27, reaction chamber 271, spray orifice 272, air-exhausting duct 28, fiber-optic grating sensor 3, grating demodulation instrument 4, hydrophobic aeroscopic plate 5, expansion chamber
51, delivery hole 52, sliding tube 53, extruding ball sealer 54, elastic arc plate 6, placed cavity 61, sealing goalpost 62, gas-guide tube 7, control
Valve 8.
Specific embodiment
It is supervised using a kind of coal mine natural fire based on fiber-optic grating sensor of Fig. 1-Fig. 3 to an embodiment of the present invention
Device is surveyed to carry out as described below.
As shown in Figure 1, Figure 2 and Figure 3, a kind of coal mine natural fire prison based on fiber-optic grating sensor of the present invention
Device is surveyed, including the spraying temperature lowering apparatus 2 being arranged in tunnel 1；The whitewashing cooling device includes aqueduct 21, high-pressure hydraulic pump
22, water storage wall 23, water spray raised line 24, elastic packing ball 25, elastic extruded tube 26 and fixed siphunculus 27；The aqueduct 21 is arranged
In the bottom end two sides in tunnel 1, and the end of aqueduct 21 is connect with high-pressure hydraulic pump 22, the model QDL45- of high-pressure hydraulic pump 22
20；The water storage wall 23 is uniformly laid on the inner wall in tunnel 1, and storage chamber 231 is offered inside water storage wall 23；The water storage
The bottom end of wall 23 is connected to aqueduct 21, and the top of water storage wall 23 is connected on fixed siphunculus 27；Outside the water storage wall 23
Water spray raised line 24 is evenly arranged on wall from top to bottom, and offers hole for water spraying 241 diagonally downward on the side wall for raised line 24 of spraying water,
Water spray raised line 24 is connected to storage chamber 231；Elastic packing ball 25 is provided in the storage chamber 231, and elastic packing ball 25 is sliding
Dynamic setting is in water spray raised line 24, and elastic packing ball 25 passes through elastic extruded tube 26 and is connected on the side wall of fixed siphunculus 27,
And air-exhausting duct 28 is provided with above fixed siphunculus 27；The bottom end in the tunnel 1 is equipped with multiple fiber-optic grating sensors 3, and light
Model JH-GFA-A102 of fiber grating sensor 3, and the end of fiber-optic grating sensor 3 is electrically connected with grating demodulation instrument
4, the model WI3210B of grating demodulation instrument 4；The grating adjusting apparatus is to be electrically connected, and controlling terminal is electricity with controlling terminal
Brain；Alarm, and the model DWJ-10 of alarm are installed on the side wall in the tunnel 1；The high-pressure hydraulic pump 22 and described
The electrical connection of alarm equal control terminal；When work, fiber-optic grating sensor 3 is laid in each detection for needing to detect respectively
Area, detectable signal are transferred to grating demodulation instrument 4 by transmission fiber, and grating demodulation instrument 4 can be demodulated according to the difference of wavelength
The reflection wavelength of fiber grating is so as to calculate the temperature measurement result of each detecting area, if the temperature detected is higher than us
When preset value or rate of temperature change be more than predetermined threshold when, grating demodulation instrument 4 can to alarm issue alarm signal and
Temperature signal is transmitted to controlling terminal, the controlling terminal is opened according to obtained alarm signal and then control high-pressure hydraulic pump 22
It is dynamic, and then extraneous water source is input in storage chamber 231 by high-pressure hydraulic pump 22 by aqueduct 21, as high-pressure hydraulic pump 22 is continuous
To carrying out water storage in storage chamber 231, and then the elastic packing ball 25 for 24 internal slide of the raised line setting that makes to spray water is in high pressure water flow
Impact force under from water spray raised line 24 in be detached from, and then enter the high pressure water in storage chamber 231 will by spray water raised line 24
On the hole for water spraying 241 that opens up spray, and then water curtain is generated in tunnel 1 by the way that water energy that water spray raised line 24 sprays is enough, and then right
Cooling extinguishing operation is carried out in tunnel 1；It, can basis by the cooperation of multiple the water spray raised lines 24 and elastic packing ball 25 of setting
The temperature that fiber-optic grating sensor 3 detects, and then the pressure of the water spray by controlling terminal control high-pressure hydraulic pump 22, and then make
Elastic packing ball 25 under the impact force of hydraulic pressure can upward sliding, and then increase water spray raised line 24 spray water flow generate water curtain
Area；By the fiber-optic grating sensor 3 being arranged in tunnel 1, and then the temperature of different zones in tunnel 1 can be supervised
Control, can control the irrigation pressure of high-pressure hydraulic pump 22 by controlling terminal, and then adjustable water spray raised line 24 sprays in tunnel 1
The area of water curtain out, and then cooling fire extinguishing processing can be carried out with the high temperature that temperature in tunnel 1 or generation fire generate.
As shown in Figures 2 and 3, the elastic extruded tube 26 is set as ripple elastic material, and fills out in elastic extruded tube 26
Filled with sodium bicarbonate solution, and the liquid level of sodium bicarbonate solution is less than the half of 26 length of elastic extruded tube；The fixation
Reaction chamber 271 is offered inside siphunculus 27, and reaction chamber 271 is connected to elastic extruded tube 26；It is filled in the reaction chamber 271
Aluminum sulfate solution, and the bottom end of reaction chamber 271 offers spray orifice 272, and hydrophobic aeroscopic plate 5 is provided in reaction chamber 271；Elasticity
Ball sealer 25 makes elastic extruded tube 26 in storage chamber in impact force upward sliding in storage chamber 231 of high pressure water flow
Compression is generated in 231, the water spray that the compressed maximum deformation quantity of elastic extruded tube 26 of setting will not influence water spray raised line 24 is made
Industry；After elastic extruded tube 26 is compressed, reaction chamber 271 can be entered by being filled in elastic hydrogen sodium solution in elastic extruded tube 26
It is interior, and then generation chemical reaction is mixed with the aluminum sulfate solution that reaction chamber 271 is placed, make to generate a part two in reaction chamber 271
The carbon dioxide of carbonoxide, generation can be injected in tunnel 1 by spray orifice 272, and then carry out extinguishing operation to tunnel 1；Setting
The liquid level of sodium bicarbonate solution be less than the half of elastic 26 length of extruded tube, convenient for the water sprayed according to high-pressure hydraulic pump 22
Flowing pressure, and then the amount of sodium bicarbonate solution entered in reaction chamber 271 is controlled, and then control the spray volume of carbon dioxide.
As shown in Figures 2 and 3, the inside of the elastic packing ball 25 offers deformation cavity 251, and deforms cavity 251
Roof thickness be less than end wall thickness；The bottom end of the elasticity extruded tube 26 is connected to by air slot with deformation cavity 251, and
Elastic 26 internal slide of extruded tube, which is provided with, is slidingly sealed block 261；When work, the roof thickness of the deformation cavity 251 of setting is small
In the thickness of end wall, generate rapid deformation under the impact force of water flow convenient for elastic packing ball 25, convenient for elastic packing ball 25 from
It is quickly skidded off in water spray raised line 24；Be arranged be slidingly sealed block 261 deformation cavity 251 in gas promotion under can slide up
It is dynamic, and then the sodium bicarbonate solution of elastic 26 bottom end of extruded tube sedimentation is made to generate stirring under the promotion for being slidingly sealed block 261
Phenomenon, and then prevent elastic hydrogen sodium solution from generating sedimentation phenomenon in elastic extruded tube 26.
As shown in Figures 2 and 3, it states hydrophobic 5 inner wall of aeroscopic plate and offers expansion chamber 51, and opened up on the outer wall of expansion chamber 51
There is delivery hole 52；5 base end wall of hydrophobic aeroscopic plate is provided with sliding tube 53, and 53 bottom end of sliding tube is provided with extruding ball sealer
54, and squeeze and be filled with foaming agent in ball sealer 54；54 base end wall of extruding ball sealer offers expansion hole, and squeezes sealing
Ball 54 is located in spray orifice 272；When work, when continuous reaction generates carbon dioxide to mixed solution inside reaction chamber 271,
Constantly increase the air pressure in reaction chamber 271, and then push the extruding ball sealer 54 of hydrophobic 5 bottom end of aeroscopic plate setting downward
Sliding is detached from spray orifice 272, and then the carbon dioxide generated is enable to spray in the state of high pressure；What is generated after simultaneous reactions is molten
Liquid can be entered in sliding tube 53 by delivery hole 52, and then be mixed with the foaming agent filled in extrusion expansion ball, in turn
So that mixed solution is generated a large amount of foam under the action of foaming agent, and then sprayed by expansion hole, is further mentioned
The foam that liquid in high reaction chamber 271 after hybrid reaction generates under the action of foaming agent carries out fire extinguishing effect.
As shown in Figures 2 and 3, the fixed siphunculus 27 is internally provided with elastic arc plate 6, and offers in elastic arc plate 6
Placed cavity 61, and foaming agent is filled in placed cavity 61；Spray hole, and placed cavity are offered in the base end wall of the placed cavity 61
61 upper end wall is provided with sealing goalpost 62, and seals goalpost 62 and be slidably arranged in spray hole；When work, when reaction chamber 271
When interior air pressure constantly increases, elastic arc plate 6 can be squeezed, and then so that 6 bottom wall of elastic arc plate is generated protrusion upwards, and then make to seal
Goalpost 62 skids off spray hole, and the foaming agent filled in placed cavity 61 can be injected in reaction chamber 271, and then be made in reaction chamber 271
Mixed liquid generate certain foam, and then increase the efficiency that foam generates in reaction chamber 271, further increase foam
The effect of fire extinguishing.
As shown in Figures 2 and 3, siphunculus gas-guide tube 7 is connected between the fixed siphunculus 27 and air-exhausting duct 28, and gas-guide tube 7
It is inside provided with control valve 8, and the model UQ621F of control valve 8, and control valve 8 is electrically connected with controlling terminal；The elastic arc
It is connected on the inner wall of fixed siphunculus 27 in the upper end wall of plate 6 by squeezing spring, and squeezes the nozzle that spring is located at gas-guide tube 7
Place；When work, when in reaction chamber 271 generate chemical reaction when, controlling terminal control control valve 8 open, and then when air-exhausting duct 28
Interior gas enters the top of elastic arc plate 6, and then makes the upper surface of elastic arc plate 6 to lower recess, and then accelerates ball sealer
Column 62 skids off hastening for spray hole, while can squeeze placed cavity 61 enables the foaming agent in placed cavity 61 quickly to spray,
Further increase the foaming effect of foaming agent；It is squeezed and deformed as elastic arc plate 6 is continuous under the influence of gas, and then makes bullet
Property arc plate 6 fire foam of the generation in reaction chamber 271 can quickly can be injected in tunnel 1, and then increase lane
The efficiency of the fire extinguishing in road 1.
Specific workflow is as follows:
When work, fiber-optic grating sensor 3 is laid in each detecting area for needing to detect respectively, detectable signal passes through biography
It loses fibre and is transferred to grating demodulation instrument 4, grating demodulation instrument 4 can demodulate the back wave of fiber grating according to the difference of wavelength
It is long so as to calculate the temperature measurement result of each detecting area, if when the temperature detected is higher than our preset values or temperature
When spending change rate more than predetermined threshold, grating demodulation instrument 4 can issue alarm signal to alarm and transmit temperature to controlling terminal
Signal is spent, the controlling terminal is according to obtained alarm signal and then controls the starting of high-pressure hydraulic pump 22, and then high-pressure hydraulic pump 22
Extraneous water source is input in storage chamber 231 by aqueduct 21, with high-pressure hydraulic pump 22 constantly in storage chamber 231 into
Row water storage, and then keep the elastic packing ball 25 of water spray 24 internal slide of raised line setting convex from spraying water under the impact force of high pressure water flow
It is detached from item 24, and then the high pressure water entered in storage chamber 231 will be sprayed by the hole for water spraying 241 opened up on water spray raised line 24
Out, and then by water spray raised line 24 water energy sprayed is enough to generate water curtain in tunnel 1, and then to carrying out cooling fire extinguishing in tunnel 1
Operation.
In the description of the present invention, it is to be understood that, term " center ", "front", "rear", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom" "inner", "outside" be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the scope of the invention.
Although the present invention be illustrated by specific embodiment, it will be appreciated by those skilled in the art that, do not departing from
In the case where the scope of the invention, various transformation and equivalent substitute can also be carried out to the present invention.In addition, being directed to particular condition or material
Material, can do various modifications to the present invention, without departing from the scope of the present invention.Therefore, the present invention is not limited to disclosed tool
Body embodiment, and should include the whole embodiments fallen within the scope of the appended claims.
Claims (6)
1. a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor, it is characterised in that: including being arranged in tunnel
(1) spraying temperature lowering apparatus (2) in；The whitewashing cooling device includes aqueduct (21), high-pressure hydraulic pump (22), water storage wall
(23), water spray raised line (24), elastic packing ball (25), elastic extruded tube (26) and fixation siphunculus (27)；The aqueduct (21)
Bottom end two sides in tunnel (1) are set, and the end of aqueduct (21) is connect with high-pressure hydraulic pump (22), the type of high-pressure hydraulic pump (22)
Number be QDL45-20；The water storage wall (23) is uniformly laid on the inner wall of tunnel (1), and offers storage inside water storage wall (23)
Water cavity (231)；The bottom end of the water storage wall (23) is connected to aqueduct (21), and the top of water storage wall (23) is connected to fixed lead to
It manages on (27)；Water spray raised line (24) is evenly arranged on the outer wall of the water storage wall (23) from top to bottom, and sprays water raised line (24)
Side wall on offer diagonally downward hole for water spraying (241), water spray raised line (24) be connected to storage chamber (231)；The storage chamber
(231) it is provided with elastic packing ball (25) in, and elastic packing ball (25) is slidably arranged in water spray raised line (24), and elasticity is close
Blocking (25) passes through elastic extruded tube (26) and is connected on the side wall of fixed siphunculus (27), and is provided with above fixed siphunculus (27)
Air-exhausting duct (28)；The bottom end of the tunnel (1) is equipped with multiple fiber-optic grating sensors (3), and fiber-optic grating sensor (3)
Model JH-GFA-A102, and the end of fiber-optic grating sensor (3) is electrically connected with grating demodulation instrument (4), grating demodulation instrument
(4) model WI3210B；The grating adjusting apparatus is to be electrically connected, and controlling terminal is computer with controlling terminal；The tunnel
(1) alarm, and the model DWJ-10 of alarm are installed on side wall；The high-pressure hydraulic pump (22) and the alarm are equal
Even controlling terminal electrical connection.
2. a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor according to claim 1, feature
Be: the elasticity extruded tube (26) is set as ripple elastic material, and molten filled with sodium bicarbonate in elastic extruded tube (26)
Liquid, and the liquid level of sodium bicarbonate solution is less than the half of elastic extruded tube (26) length；The fixed siphunculus (27) is internal
It offers reaction chamber (271), and reaction chamber (271) is connected to elastic extruded tube (26)；Sulphur is filled in the reaction chamber (271)
Sour aluminum solutions, and the bottom end of reaction chamber (271) offers spray orifice (272), and is provided with hydrophobic aeroscopic plate in reaction chamber (271)
(5)。
3. a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor according to claim 1, feature
Be: the inside of the elastic packing ball (25) offers deformation cavity (251), and the roof thickness for deforming cavity (251) is small
In the thickness of end wall；The bottom end of the elasticity extruded tube (26) is connected to by air slot with deformation cavity (251), and elasticity squeezes
Pipe (26) internal slide, which is provided with, is slidingly sealed block (261).
4. a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor according to claim 2, feature
Be: hydrophobic aeroscopic plate (5) inner wall offers expansion chamber (51), and offers delivery hole on the outer wall of expansion chamber (51)
(52)；Hydrophobic aeroscopic plate (5) base end wall is provided with sliding tube (53), and sliding tube (53) bottom end is provided with extruding ball sealer
(54), it and squeezes in ball sealer (54) filled with foaming agent；Extruding ball sealer (54) base end wall offers expansion hole, and squeezes
Densification blocking (54) is located in spray orifice (272).
5. a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor according to claim 2, feature
Be: the fixed siphunculus (27) is internally provided with elastic arc plate (6), and offers placed cavity (61) in elastic arc plate (6), and
Foaming agent is filled in placed cavity (61)；Offer spray hole in the base end wall of the placed cavity (61), and placed cavity (61)
Upper end wall is provided with sealing goalpost (62), and seals goalpost (62) and be slidably arranged in spray hole.
6. a kind of coal mine natural fire monitoring device based on fiber-optic grating sensor according to claim 4, feature
Be: siphunculus gas-guide tube (7) is connected between the fixed siphunculus (27) and air-exhausting duct (28), and is provided with control in gas-guide tube (7)
Valve (8) processed, and the model UQ621F of control valve (8), and control valve (8) is electrically connected with controlling terminal；The elastic arc plate (6)
Upper end wall on be connected on the inner wall of fixed siphunculus (27) by squeezing spring, and squeeze spring and be located at the pipe of gas-guide tube (7)
At mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691142.XA CN110425007B (en) | 2019-07-29 | 2019-07-29 | Coal mine natural fire monitoring device based on fiber grating sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691142.XA CN110425007B (en) | 2019-07-29 | 2019-07-29 | Coal mine natural fire monitoring device based on fiber grating sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110425007A true CN110425007A (en) | 2019-11-08 |
| CN110425007B CN110425007B (en) | 2020-12-01 |
Family
ID=68411326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910691142.XA Active CN110425007B (en) | 2019-07-29 | 2019-07-29 | Coal mine natural fire monitoring device based on fiber grating sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110425007B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322104A (en) * | 2020-02-26 | 2020-06-23 | 河南理工大学 | Intelligent fire extinguishing device for underground roadway |
| CN111335935A (en) * | 2020-02-28 | 2020-06-26 | 柳友军 | Fire extinguishing device for underground coal mine |
| CN111608733A (en) * | 2020-07-13 | 2020-09-01 | 临沂矿业集团有限责任公司 | Unattended safety early warning system for underground coal mine drainage system |
| CN112150746A (en) * | 2020-09-29 | 2020-12-29 | 福州大学 | Self-explosion monitoring and early warning device and method for vulcanized mine explosive |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100312850B1 (en) * | 1998-03-18 | 2001-12-28 | 이정국 | Automatic water spraying apparatus for tunnel concrete curing and control method thereof |
| DE10209871A1 (en) * | 2002-03-06 | 2003-09-25 | Axel Kretzschmar | Method and appliance for reducing smoke and pollutant during a fire involve spray the smoke with fine water-spray |
| KR20040096819A (en) * | 2004-08-31 | 2004-11-17 | 풍림산업 주식회사 | Dust removal device |
| CN103852111A (en) * | 2014-03-03 | 2014-06-11 | 天津大学 | Intelligent tunnel monitoring and alarm system based on optical fiber sensing network |
| CN104329109A (en) * | 2014-08-29 | 2015-02-04 | 辽宁工程技术大学 | Gob retardant efficient spraying system and spraying method |
| CN205532689U (en) * | 2016-01-29 | 2016-08-31 | 冉茂伦 | Tunnel face automatic remote control sprays dust fall fire extinguishing systems |
| PL68874Y1 (en) * | 2011-12-12 | 2017-01-31 | Inst Techniki Górniczej Komag | Sprinkling curtain for dust flocculation in the mining headings |
| CN106523022A (en) * | 2016-12-27 | 2017-03-22 | 同济大学 | Tunnel fire extinguishing system based on water curtain shielding effects |
| CN207261036U (en) * | 2017-08-10 | 2018-04-20 | 卜海明 | A kind of fire-fighting water-saving structure for freeway tunnel |
| CN108222999A (en) * | 2018-01-26 | 2018-06-29 | 宁夏德大气体开发科技有限公司 | A kind of liquid carbon dioxide cooling fire extinguishing system |
| CN207740048U (en) * | 2017-12-06 | 2018-08-17 | 河南大有能源股份有限公司耿村煤矿 | A kind of easy spontaneous combustion mine sealing pressure difference on-line monitoring device of high methane |
| CN109060168A (en) * | 2018-08-15 | 2018-12-21 | 谢国民 | A kind of spontaneous fire in coal mine monitoring device based on fiber-optic grating sensor |
-
2019
- 2019-07-29 CN CN201910691142.XA patent/CN110425007B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100312850B1 (en) * | 1998-03-18 | 2001-12-28 | 이정국 | Automatic water spraying apparatus for tunnel concrete curing and control method thereof |
| DE10209871A1 (en) * | 2002-03-06 | 2003-09-25 | Axel Kretzschmar | Method and appliance for reducing smoke and pollutant during a fire involve spray the smoke with fine water-spray |
| KR20040096819A (en) * | 2004-08-31 | 2004-11-17 | 풍림산업 주식회사 | Dust removal device |
| PL68874Y1 (en) * | 2011-12-12 | 2017-01-31 | Inst Techniki Górniczej Komag | Sprinkling curtain for dust flocculation in the mining headings |
| CN103852111A (en) * | 2014-03-03 | 2014-06-11 | 天津大学 | Intelligent tunnel monitoring and alarm system based on optical fiber sensing network |
| CN104329109A (en) * | 2014-08-29 | 2015-02-04 | 辽宁工程技术大学 | Gob retardant efficient spraying system and spraying method |
| CN205532689U (en) * | 2016-01-29 | 2016-08-31 | 冉茂伦 | Tunnel face automatic remote control sprays dust fall fire extinguishing systems |
| CN106523022A (en) * | 2016-12-27 | 2017-03-22 | 同济大学 | Tunnel fire extinguishing system based on water curtain shielding effects |
| CN207261036U (en) * | 2017-08-10 | 2018-04-20 | 卜海明 | A kind of fire-fighting water-saving structure for freeway tunnel |
| CN207740048U (en) * | 2017-12-06 | 2018-08-17 | 河南大有能源股份有限公司耿村煤矿 | A kind of easy spontaneous combustion mine sealing pressure difference on-line monitoring device of high methane |
| CN108222999A (en) * | 2018-01-26 | 2018-06-29 | 宁夏德大气体开发科技有限公司 | A kind of liquid carbon dioxide cooling fire extinguishing system |
| CN109060168A (en) * | 2018-08-15 | 2018-12-21 | 谢国民 | A kind of spontaneous fire in coal mine monitoring device based on fiber-optic grating sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322104A (en) * | 2020-02-26 | 2020-06-23 | 河南理工大学 | Intelligent fire extinguishing device for underground roadway |
| CN111322104B (en) * | 2020-02-26 | 2021-08-06 | 河南理工大学 | Intelligent fire extinguishing device for underground roadway |
| CN111335935A (en) * | 2020-02-28 | 2020-06-26 | 柳友军 | Fire extinguishing device for underground coal mine |
| CN111608733A (en) * | 2020-07-13 | 2020-09-01 | 临沂矿业集团有限责任公司 | Unattended safety early warning system for underground coal mine drainage system |
| CN112150746A (en) * | 2020-09-29 | 2020-12-29 | 福州大学 | Self-explosion monitoring and early warning device and method for vulcanized mine explosive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110425007B (en) | 2020-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110425007A (en) | A kind of coal mine natural fire monitoring device based on fiber-optic grating sensor | |
| ID24826A (en) | METHOD AND EQUIPMENT FOR PRODUCING HYDRAULIC GAS | |
| CN104329109A (en) | Gob retardant efficient spraying system and spraying method | |
| CN113605983B (en) | Coal mine goaf high-temperature detection early warning and fire prevention and extinguishing intelligent cooperative management and control system | |
| CN107243128B (en) | Battery fire extinguisher using hexafluoropropane and carbon dioxide for fire extinguishment | |
| CN205730049U (en) | Energy storage type high pressure water spray extinguisher | |
| CN103691082B (en) | The lazy bubble preparation facilities of colloid resistanceization of control coal spontaneous combustion and technique thereof | |
| CN102094666A (en) | Foam dust collector | |
| CN208858393U (en) | A kind of coal mine gob nitrogen injection spray device | |
| CN112086882A (en) | Power engineering installation is with block terminal that has fire prevention function | |
| CN207295994U (en) | A kind of shaped steel fire prevention structure structure of steel building | |
| CN205391515U (en) | Portable high -pressure water smoke fire extinguisher | |
| CN203489006U (en) | Safe conveying system for coalbed methane | |
| CN200963462Y (en) | Handcart type expansion graphite fire extinguishing apparatus | |
| CN213303228U (en) | Smoke temperature detector with water spraying function | |
| CN211561653U (en) | Automatic fire extinguishing equipment for communication base station | |
| CN207004563U (en) | A kind of device for preventing goaf coal body spontaneous combustion | |
| CN214286413U (en) | Fire hose joint capable of being installed quickly | |
| CN211549674U (en) | Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation | |
| CN203694462U (en) | Colloid inhibition inerting foam preparation device for preventing spontaneous combustion of coal | |
| CN212756924U (en) | Water spraying auxiliary fire extinguishing device for wind fire extinguisher | |
| CN208582899U (en) | A kind of multi-functional fire-fighting structure | |
| CN209687490U (en) | A kind of carbon dioxide fracturing device | |
| CN107929986B (en) | Automatic spraying fire-fighting device | |
| CN105597253A (en) | Energy storage type high-pressure spray extinguisher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 234000 north section of Longxing Road, circular economy demonstration park, Yongqiao District, Suzhou City, Anhui Province Patentee after: Anhui Jinding Safety Technology Co.,Ltd. Address before: 234000 north section of Longxing Road, circular economy demonstration park, Yongqiao District, Suzhou City, Anhui Province Patentee before: SUZHOU JINDING TECHNOLOGY SECURITY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |