CN110514551A - A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test method - Google Patents
A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test method Download PDFInfo
- Publication number
- CN110514551A CN110514551A CN201910715130.6A CN201910715130A CN110514551A CN 110514551 A CN110514551 A CN 110514551A CN 201910715130 A CN201910715130 A CN 201910715130A CN 110514551 A CN110514551 A CN 110514551A
- Authority
- CN
- China
- Prior art keywords
- model
- tunnel
- sprayed
- physical model
- gas
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Fire Alarms (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention relates to a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test methods, technical solution: including physical model, the physical model is the gengon with top cover, a model tunnel is worn in physical model, multiple first high temperature resistant temperature probes are evenly equipped in model tunnel, each first high temperature resistant temperature probe is connected with temperature indicating meter, multiple apertures are evenly equipped with around model tunnel, one of aperture is fire hole, remaining aperture is monitoring holes, each detection hole is connected with gas detecting instrument, and a second high temperature resistant temperature probe is disposed in each monitoring holes, second high temperature resistant temperature probe is connected with temperature indicator；Physical model is equipped with air pushing hole and surveys stomata, the both ends of air pushing hole be located near fire hole with outside physical model, the one end for surveying stomata is located inside model tunnel, outside other end physical model and it is connected with a multifunctional gas detector, the end of close air pushing hole is equipped with a pressure gauge in model tunnel.
Description
Technical field
The present invention relates to a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test methods, are particularly suitable for
Inflammable seam gob side entry retaining spraying plugging material Fang Feng ﹑ is heat-insulated and the measurement of the performances such as pernicious gas is isolated.
Background technique
Coal is the main energy sources in China, in occupation of critical positions in national economy energy resource structure, therefore, the peace of coal
Full high-efficiency mining is particularly important.Mine fire is one of Major Natural Disasters of coal mine, and spontaneous combustionof coal is Mine Fire
The principal mode of calamity has 56% or more mine all to there is the danger of spontaneous combustion, by coal in China's State owned coal mine
Fire caused by spontaneous combustion can account for 60% or more of mine fire sum.
Edge air gallery technology is to improve coal recovery rate, reduces tunnelling amount, mitigates digging connects nervous situation one
The advanced no coal pillar mining technology of item.China largely uses roadside packing mode to carry out gob side entry retaining, in spontaneous fire seam
Promote gob side entry retaining coal winning technology, if roadside packing wall connect that top is not firm or local pressure break may cause it is biggish leak out,
Spontaneous combustion in goaf can be caused to cause fire.It is to reduce goaf coal spontaneous combustion that gob side entry retaining, which is reduced, to goaf air leaking
The effective measures of risk, and the spraying leak stopping of mined out side filled wall surface is major measure one of of the gob side entry retaining every wind technology.
The fire extinguishing performance of sprayed on material is major influence factors one of of the gob side entry retaining every wind effect, and there are many prevent going out to mining at present
Fire-fighting applies material property research, but lacks fire extinguishing sprayed on material Performance Measurement System and test method, publication number
CN203037639U coal mine plugging material is every wind performance testing device, although the invention can measure the stifled wind performance of material,
But the performances such as material heat-insulating, fire-preventing cannot be measured, and experimental rig is complicated, it is cumbersome.Publication number CN105388091B mono-
Kind of mine foam fluent material fire extinguishing characteristic test device and method, although can measure material every wind, heat-insulated, fire line
Energy is equal, but it is suitable only for the fire extinguishing performance of aerated fluid material.Therefore, before spraying application to various sprayed on material into
Row performance measurement is to determine that optimal selection shows particularly necessary.
Summary of the invention
The technical problem to be solved by the present invention is to solve the above problems, the present invention provides a kind of inflammable seam fire extinguishing
Sprayed on material Performance Measurement System and test method, the test data that the system and experimental method obtain is accurate, can be quick
Find optimal fire extinguishing sprayed on material.
The object of the present invention is achieved in the following manner: a kind of inflammable seam fire extinguishing sprayed on material performance measurement system
System: including physical model, the physical model is the gengon with top cover, wears a model tunnel, model in physical model
Multiple first high temperature resistant temperature probes are evenly equipped in tunnel, each first high temperature resistant temperature probe is connected with temperature indicating meter, mould
Multiple apertures are evenly equipped with around type tunnel, one of aperture is fire hole, remaining aperture is monitoring holes, each detection hole
It is connected with gas detecting instrument, and is disposed with a second high temperature resistant temperature probe in each monitoring holes, the second high temperature resistant thermometric is visited
Head is connected with temperature indicator；Physical model is equipped with air pushing hole and surveys stomata, and the both ends of air pushing hole are located at fire hole
Nearby and outside physical model, the one end for surveying stomata is located inside model tunnel, outside other end physical model and is connected with one
A multifunctional gas detector, the end in model tunnel close to air pushing hole are equipped with a pressure gauge.
A kind of inflammable seam fire extinguishing sprayed on material method for testing performance, steps are as follows:
Step 1: prefabricated Roadway model.
Step 2: prefabricated fire hole, air pushing hole, surveys stomata at monitoring holes.
Step 3: prefabricated physical model is successively placed fire hole, prison during prefabricated physical model by design position
Gaging hole, surveys stomata and air vent etc. at air pushing hole, broken coal is filled, with the closed top of heat-resisting steel sheet and plate.
Step 4: connection monitoring device arranges the first resistant detector, the connection of the first resistant detector in simulation tunnel
Temperature indicating meter；The second high temperature resistant temperature probe is arranged in monitoring holes, the second resistant detector connects temperature indicator；Survey gas
Hole is connected with multifunctional gas detector, and model is equipped with pressure gauge in tunnel.
Step 5: a kind of inflammable seam fire extinguishing sprayed on material is smeared.
Step 6: carrying out the test of sprayed on material wind-proof performance, and closing fire hole, surveys stomata and all prisons at air vent
Gaging hole is fed in air pushing hole by air blower and is blown, the pressure value after being stablized by controller recording manometer, and measures pressure
The total blast volume in tunnel is flowed through after power is stablized in 2min.
Step 7: the test for carrying out sprayed on material thermal insulation, completely cutting off pernicious gas performance, in measurement model tunnel and broken coal
Temperature and gas concentration, open fire hole, air vent, survey stomata, will simulate the closing of tunnel rear and front end, point with pyroceram
Fire broken coal, by gas componant, gas concentration and the temperature in monitoring control devices model tunnel and goaf (broken coal space) and
The relationship of time stops experiment until temperature, gas concentration are not changing.
Step 8: model tunnel surface original sprayed on material is cleaned out, is refilled unburned broken by more conversion materials
Coal sprays another proportion gunite material in model tunnel, and it is consistent to save experiment parameter, repeats step 5 to step 8, and
Record data.
Step 9: by controller analyzing and processing data, the Fang Feng ﹑ Ge Wen ﹑ isolation pernicious gas of each sprayed on material is evaluated
Performance, choose optimal sprayed on material in inflammable seam gob side entry retaining on site.
Compared with the existing technology, the present invention can be primary it is only necessary to fill, can obtain fire extinguishing sprayed on material every
Wind performance, heat-proof quality, three data targets such as be separated with harmful gas performance, test simple and reliable, and calculate data processing side
Just quick, it can quickly obtain data result, greatly reduce the triviality of test.
Detailed description of the invention
The structural schematic diagram of Fig. 1 test device of the present invention；
The left view of Fig. 2 physical model；
The right view of Fig. 3 physical model；
The schematic diagram of Fig. 4 physical model installation monitoring hole；
Fig. 5 detection hole, fire hole schematic diagram.
Fig. 6 is the partial enlarged view of A in Fig. 1.
In figure, 1- physical model, 2- sealing steel plate, 3- model tunnel, 4- fire hole, 5- monitoring holes, 6- air pushing hole, 7- put
Stomata, 8- survey stomata, 9- the first high temperature resistant temperature probe, 10- pressure gauge, 11- pyroceram, the detection of 12- multifunctional gas
Instrument, 13- temperature indicating meter, 14- temperature indicator, 15- gas detecting instrument, 16- air blower, 17- controller, 18 second high temperature resistants
Temperature probe.
Specific embodiment
A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System of the present invention, including physical model 1, the physics
Gengon of the model 1 with top cover is installed with a model tunnel 3 on physical model 1, and the shape in the model tunnel 3 can basis
Actual conditions are arranged, and are evenly equipped with multiple first high temperature resistant temperature probes 9, each first high temperature resistant temperature probe 9 in model tunnel 3
It is connected with a temperature indicating meter 13, temperature indicating meter 13 can temperature in display model tunnel 3；Around model tunnel 3
Multiple apertures are furnished with, one of aperture is fire hole 4, remaining aperture is monitoring holes 5, and each detection hole 5 is connected with gas
Detector 15, and a second high temperature resistant temperature probe 18 is disposed in each monitoring holes 5, the second high temperature resistant temperature probe 18 connects
It is connected to temperature indicator 14, temperature indicator 14 and gas detecting instrument 15 respectively can temperature outside display model tunnel 3 and harmful
The concentration of gas shows the temperature in simulation goaf and the concentration of pernicious gas；Physical model 1 is equipped with air pushing hole 6 and surveys
Stomata 8, the both ends of air pushing hole 6 are located near fire hole 4 with outside physical model 1, and the one end for surveying stomata 8 is located at model
Inside tunnel 3, the outside of other end physical model 1 and it is connected with a multifunctional gas detector 12, close to sending in model tunnel 3
The end of air holes 6 is equipped with a pressure gauge 10.
The physical model 1 is built by brick and specification is square of the 2m × 2m × 2m without top.
Accuracy in order to ensure the test results, the model tunnel 3 are trapezoidal tunnel and are located at the physical model 1
Center.
In order to improve the Monitoring Performance of monitoring holes 5, the monitoring holes 5 are no less than 8, and 5 axis of monitoring holes and model
The axis in tunnel 3 is parallel, can reduce test error, improves the accuracy of test.
In order to improve the accuracy of test result, the top cover of the physical model 1, which is one, is located at the top of gengon
Sealing steel plate 2, sealing steel plate 2 can prevent carry out isolation pernicious gas performance test when, prevent pernicious gas directly from
It is diffused out at the top of physical model 1, the concentration so as to cause the pernicious gas detected in model tunnel 3 reduces or can't detect
The concentration of evil gas.
In order to simulate the state of tunnel gas diffusion, the sealing steel plate 2 is equipped with an air vent 7, is carrying out
When completely cutting off pernicious gas test, 1 inside pernicious gas of physical model can spread a part from air vent 7, can simulate underground
The state of goaf free diffusing, so that test result is more acurrate.
In order to improve the accuracy for the heat-proof quality for detecting material, the first high temperature resistant temperature probe 9 is no less than four
It is a.
Using diameter 6mm steel wire weld at trapezoidal, the shelf of long 2m is first bound on the outside of shelf for the model tunnel 2
The steel mesh of string diameter 3mm, then 60 wire nettings are bound, 3 front and rear sides face not assembling reinforcement net of model tunnel and wire netting；Mould
The both ends in type tunnel 3 can be sealed with pyroceram 11.The change in 11 observing and nursing tunnel 3 of pyroceram can be passed through
Change.
The monitoring holes 5 are using diameter 3mm steel wire weld at the cylindrical mantle of diameter 50mm ﹑ long 2m, shelf outside
The wire netting of binding 100.
The air pushing hole 6, surveys stomata 8, and air vent 7 etc. is all made of diameter 3mm steel wire weld into the cylinder of diameter 50mm
Shape shelf, length determines according to actual conditions, use iron sheet welded seal, gas can be prevented from cylindrical mantle side on the outside of shelf
It overflows, increases the accuracy of test result, reduce test error.
In order to improve the accuracy of test result, the pressure gauge 10, multifunctional gas detector 12, temperature indicator
14, gas detecting instrument 15, temperature indicating meter 13 are connected with a controller 17, and controller 17 can detecte and analyze pressure gauge
10, the data of multifunctional gas detector 12, temperature indicator 14, gas detecting instrument 15, temperature indicating meter 13.
First resistant detector 9 and the second resistant detector 18 passes through outside high temperature resistant wire and physical model 1
Detection device is connected, and monitoring holes 5 are connected by high temperature resistant gas-guide tube with the detection device outside physical model 1 with survey stomata 8
It connects.
A kind of inflammable seam fire extinguishing sprayed on material method for testing performance, steps are as follows:
Step 1: pre-manufactured model tunnel 3,3 frame of model tunnel is using diameter 6mm steel wire weld at the trapezoidal of design size, long 2m
Shelf, the steel mesh of string diameter 3mm is first bound on the outside of shelf, then bind 60 wire nettings, is not tied up on former and later two sides
It wire-ties net and wire netting.
Step 2: prefabricated fire hole 4, monitoring holes 5, survey stomata 8, air vent 7 etc., using diameter 3mm steel wire weld Cheng Zhi
100 wire nettings are bound in the cylindrical mantle of diameter 50mm ﹑ long 2m, shelf outside；Air pushing hole 6, survey stomata 8 and air vent 7 are adopted
With diameter 3mm steel wire weld at the cylindrical mantle of diameter 50mm, length determines according to actual conditions, is welded on the outside of shelf with iron sheet
Connect sealing.
Step 3: prefabricated physical model 1 builds the square groove of 2m × 2m × 2m processed with square brick, during square groove builds processed, adds
Enter broken coal filling, when square groove is built to the design of 6 ﹑ of model tunnel 3 ﹑ fire hole, 4 ﹑ monitoring holes, 5 ﹑ air pushing hole survey stomata 8 and air vent 7
When position, by the fire hole 4 processed, monitoring holes 5, air pushing hole 6, stomata 8 and air vent 7 is surveyed, is successively installed by design position,
All filling coal stops filling, with the top of the closed physical model 1 of sealing steel plate 2 when square groove is built to high 2m in other spaces.
Step 4: connection monitoring device, top side, low side and two inside simulation tunnel help center to install one first
High temperature resistant temperature probe 9, the first high temperature resistant temperature probe 9 export to 1 outside of physical model by high temperature resistant wire and access temperature
Spend dial gauge 13；It is disposed with a second high temperature resistant temperature probe 18 and a high temperature resistant gas-guide tube in each monitoring holes 5, second
High temperature resistant temperature probe 18 is connect by high temperature resistant wire with the outer temperature indicator 14 of physical model 1, high temperature resistant gas-guide tube and gas
Body detector 15 connects；The one end for surveying stomata 8 is located inside model tunnel 3, and the other end is located at 1 outside of physical model and is connected with
One multifunctional gas detector 12, the end in model tunnel 3 close to air pushing hole 6 are equipped with a pressure gauge 10；By pressure
Meter 10, multifunctional gas detector 12, temperature indicator 14, gas detecting instrument 15, temperature indicating meter 13 respectively with controller 17
It is connected.
Step 5: smearing a kind of inflammable seam fire extinguishing sprayed on material, sprays a kind of inflammable seam on 3 surface of model tunnel
Fire extinguishing sprayed on material, coating thickness 10mm.
Step 6: carrying out the test of sprayed on material wind-proof performance, and closing fire hole 4, is surveyed stomata 8 and owned air vent 7
Monitoring holes 5, prevent gas by fire hole 4, air vent 7, survey stomata 8 and all monitoring holes 5 and be diffused into physical model 1
Outside, and influence the accuracy of test result；It is provided with stablizing airspeed by air blower 16 blowing into air pushing hole 6, with resistance to height
The air quantity in tunnel is simulated in the one end in warm 11 closed model tunnel 3 of glass, measurement.If 3 one end of model tunnel does not have to high temperature resistant glass
Glass 11 blocks, and the outlet air simultaneously of 3 both ends of model tunnel will lead to test result inaccuracy, thus by 3 one end of model tunnel with resistance to
High temp glass 11 is blocked, and is made the 3 one end outlet air of model tunnel, is improved the accuracy of test result, so that the air quantity measured is more
It is accurate to add；Observe controller 17 data, and by 17 recording manometer of controller stablize reading, and record pressure stablize after
The total blast volume in model tunnel 3 is flowed through in 2min.
Step 7: the test for carrying out sprayed on material thermal insulation, completely cutting off pernicious gas performance, in measurement model tunnel 3 and broken coal
Temperature and gas concentration, open fire hole 4, air vent 7, survey stomata 8, the front and back of tunnel 3 two will be simulated with pyroceram 11
End seal is closed, and conveys fire source into fire hole 4, lights broken coal, simulates spontaneous combustion in goaf；After igniting, by air pushing hole 6, no
Break and blow into physical model 1, prevents the fire source after lighting a fire in physical model 1 from extinguishing；Pass through 17 monitoring model tunnel 3 of controller
Gas componant, the relationship of gas concentration and temperature and time in interior and goaf (broken coal space), until temperature, gas are dense
Degree is not changing, and stops experiment.
Step 8: 3 surface original sprayed on material of model tunnel is cleaned out, is refilled unburned broken by more conversion materials
Coal sprays another proportion gunite material in model tunnel 3, and it is consistent to save experiment parameter, repeats step 5 to step 8, and
Record data.
Step 9: correlation data passes through pressure, air quantity, temperature and the gas of each sprayed on material of 17 comparative analysis of controller
The numerical value such as concentration evaluate radix saposhnikoviae, the thermal insulation, the performance for completely cutting off pernicious gas of each sprayed on material, choose optimal sprayed on material and use
On site in inflammable seam gob side entry retaining.
1. the comparison for Anti-air-leakage performance test data:
Assuming that the wind pressure stationary value of the first sprayed on material is P1, the air quantity that model tunnel 3 is flowed through in 2min is Q1；
Assuming that the wind pressure stationary value of second of sprayed on material is P2, the air quantity that model tunnel 3 is flowed through in 2min is Q2；
Assuming that the wind pressure stationary value of the third sprayed on material is P3, the air quantity that model tunnel 3 is flowed through in 2min is Q3；
By controller 17 to the numerical value for flowing through model tunnel 3 in specific wind pressure stationary value and 2min.Wind pressure stationary value P and air quantity Q
It is smaller, indicate that the wind-proof performance of material is better.
Such as P1< P2< P3、Q1< Q2< Q3, indicate that the wind-proof performance of the first material is preferable.
2. the comparison for Heat-Insulation Test data:
Assuming that average temperature temperature (read by temperature indicating meter 13 shown by controller 17 in the first sprayed on material model tunnel 3
Several average value) it is T1, goaf average temperature temperature (average value of the reading of temperature indicator 14 shown by controller 17)
T1', the thermal insulation rate of the material is t1。
Assuming that average temperature temperature (temperature indicating meter shown by controller 17 in second of sprayed on material model tunnel 3
The average value of 13 readings) it is T2, goaf average temperature temperature (temperature indicator 14 shown by controller 17 reading be averaged
Value) T '2, the thermal insulation rate of the material is t2。
Assuming that average temperature temperature (temperature indicating meter shown by controller 17 in the third sprayed on material model tunnel 3
The average value of 13 readings) it is T3, goaf average temperature temperature (average value of 17 temperature indicators 14 of controller reading)
T′3, the thermal insulation rate of the material is t3。
The input material thermal insulation rate t calculation formula in controller 17 are as follows:
Thermal insulation rate is bigger, indicates that the heat-proof quality of material is better.
Such as t1< t2< t3, indicate that the heat-proof quality of the third material is best.
3. completely cutting off pernicious gas performance test data comparison:
Assuming that stabilizing gas concentration (shown multi-tester 12 in controller 17 in the first sprayed on material simulation tunnel
Steady concentration) it is S1, (being averaged for 15 gas of gas detecting instrument shown by controller 17 is dense for goaf average temperature gas concentration
Degree) S '1, the isolation pernicious gas rate of the material is g1。
(the shown multi-tester in controller 17 assuming that stabilizing gas concentration in second sprayed on material simulation tunnel
12 steady concentration) it is S2, goaf average temperature gas concentration (15 gas of gas detecting instrument shown by controller 17 it is flat
Equal concentration) S '2, the isolation pernicious gas rate of the material is g2。
Assuming that stabilizing gas concentration (shown multi-tester in controller 17 in the third sprayed on material simulation tunnel
12 steady concentration) it is S3, goaf average temperature gas concentration (15 gas of gas detecting instrument shown by controller 17 it is flat
Equal concentration) S '3, the isolation pernicious gas rate of the material is g3。
Pernicious gas rate g calculation formula is isolated in input material in controller 17 are as follows:
It is bigger that pernicious gas rate is isolated, indicates that the isolation pernicious gas performance of material is better.
Such as g1< g2< g3, indicate that the isolation pernicious gas performance of the third material is best.
Claims (10)
1. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System, it is characterised in that: described including physical model (1)
Physical model (1) be the gengon with top cover, wears a model tunnel (3) in physical model (1), in model tunnel (3)
Multiple first high temperature resistant temperature probes (9) are furnished with, each first high temperature resistant temperature probe (9) is connected with temperature indicating meter (13),
Multiple apertures are evenly equipped with around model tunnel (3), one of aperture is fire hole (4), remaining aperture is monitoring holes
(5), each detection hole (5) is connected with gas detecting instrument (15), and is disposed with second high temperature resistant in each monitoring holes (5) and surveys
Temperature probe (18), the second high temperature resistant temperature probe (18) are connected with temperature indicator (14)；Physical model (1) is equipped with air pushing hole
(6) and stomata (8) are surveyed, the both ends of air pushing hole (6) are located near fire hole (4) and are connected to physical model (1) outside,
The one end for surveying stomata (8) is located at model tunnel (3) inside, and the other end is located at physical model (1) outside and is connected with function more than one
Energy gas detecting instrument (12), the end in model tunnel (3) close to air pushing hole (6) are equipped with a pressure gauge (10).
2. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 1, feature
Be: the physical model (1) is built by brick and specification is square of the 2m × 2m × 2m without top, model tunnel
(3) for trapezoidal tunnel and positioned at the center of physical model (1), the both ends of model tunnel (3) are sealed by pyroceram (11).
3. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 1, feature
Be: the monitoring holes (5) are no less than 8, and monitoring holes (5) axis is parallel with the axis of model tunnel (3), the first resistance to height
Warm temperature probe (9) is no less than four.
4. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 1, feature
Be: the top cover of the physical model (1) is a sealing steel plate (2) that be located at the top of gengon, and sealing steel plate (2)
It is equipped with an air vent (7).
5. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 1, feature
It is: is equipped with controller (17) outside the physical model (1), pressure gauge (10), temperature indicator (14), temperature indicating meter
(13), gas detecting instrument (15) is connected with controller (17).
6. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 1, feature
Be: using diameter 6mm steel wire weld at trapezoidal, the shelf of long 2m first binds silk on the outside of shelf in the model tunnel (3)
The steel mesh of diameter 3mm, then 60 wire nettings are bound, tunnel front and rear sides face not assembling reinforcement net and wire netting；Monitoring holes (5)
Using diameter 3mm steel wire weld at the cylindrical mantle of diameter 50mm ﹑ long 2m, 100 wire nettings, air-supply are bound in shelf outside
Hole (6) surveys stomata (8) and air vent (7) and is all made of diameter 3mm steel wire weld at the cylindrical mantle of diameter 50mm, outside shelf
Side iron sheet welded seal.
7. a kind of inflammable seam fire extinguishing sprayed on material method for testing performance, steps are as follows:
Step 1: prefabricated Roadway model；
Step 2: prefabricated fire hole (4), air pushing hole (6), surveys stomata (8) at monitoring holes (5)
Step 3: prefabricated physical model (1) successively places fire hole by design position during prefabricated physical model (1)
(4), monitoring holes (5), air pushing hole (6), survey stomata (8) and air vent (7) etc., filling broken coal, with sealing steel plate (2) it is closed on
Side；
Step 4: connection monitoring device arranges the first high temperature resistant temperature probe (9), the first high temperature resistant thermometric in simulation tunnel
Probe (9) connection temperature indicating meter (13)；The second high temperature resistant temperature probe (18), the second high temperature resistant are arranged in monitoring holes (5)
Temperature probe (18) connects temperature indicator (14)；It surveys stomata (8) and is connected with multifunctional gas detector (12), model tunnel
(3) pressure gauge (10) are installed in；Pressure gauge (10), temperature indicator (14), temperature indicating meter (13), gas detecting instrument (15)
It is connected with a controller (17)；
Step 5: smearing a kind of inflammable seam fire extinguishing sprayed on material, and it is anti-to spray a kind of inflammable seam on model tunnel (3) surface
Fire extinguishing sprayed on material, coating thickness 10mm；
Step 6: carrying out the test of sprayed on material wind-proof performance, and closing fire hole (4), air vent (7) are surveyed stomata (8) and owned
Monitoring holes (5), air-supply in air pushing hole (6) is fed to by air blower (16), after stablizing by controller (17) recording manometer
Pressure value, and measure the total blast volume for flowing through tunnel after pressure is stablized in 2min；
Step 7: the test for carrying out sprayed on material thermal insulation, completely cutting off pernicious gas performance, in measurement model tunnel (3) and broken coal
Temperature and gas concentration open fire hole (4), air vent (7), survey stomata (8), with pyroceram (11) by model tunnel
(3) rear and front end is closed, light broken coal, by controller (17) monitoring model tunnel (3) and goaf (broken coal space)
The relationship of gas componant, gas concentration and temperature and time stops experiment until temperature, gas concentration are no longer changed；
Step 8: model tunnel (3) surface original sprayed on material is cleaned out, refills unburned broken coal by more conversion materials,
Another proportion gunite material of spraying in model tunnel (3), it is consistent to save experiment parameter, repeats step 5 to step 8, and
Record data；
Step 9: by controller (17) analyzing and processing data, the Fang Feng ﹑ Ge Wen ﹑ isolation pernicious gas of each sprayed on material is evaluated
Performance, choose optimal sprayed on material in inflammable seam gob side entry retaining on site；
A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 10, feature exist
In: in the step six, before being tested, with the one end in pyroceram (11) closed model tunnel (3).
8. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 10, feature
It is: the control methods in the step nine, for Anti-air-leakage performance test data are as follows: wind pressure stationary value P and air quantity Q are got over
It is small, indicate that the wind-proof performance of material is better.
9. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 10, feature
Be: in the step nine, comparison for Heat-Insulation Test data: the thermal insulation rate t of material can be calculated with following formula:
T is the average value of the reading of temperature indicateing arm (13) shown by controller (17), and T ' is temperature shown by controller (17)
The average value of display instrument (14) reading is spent, thermal insulation rate t is bigger, indicates that the heat-proof quality of material is better.
10. a kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System according to claim 10, feature exist
In: in the step nine, for completely cutting off pernicious gas performance: the isolation pernicious gas rate g of material can be calculated with following formula:
S is the steady concentration of shown multi-tester (12) in controller (17), S '3Gas shown by controller (17)
The mean concentration of detector (15) gas, isolation pernicious gas s rate is bigger, indicates that the isolation pernicious gas performance of material is good.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715130.6A CN110514551B (en) | 2019-08-02 | 2019-08-02 | System and test method for measuring performance of fire-fighting spraying material for flammable coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910715130.6A CN110514551B (en) | 2019-08-02 | 2019-08-02 | System and test method for measuring performance of fire-fighting spraying material for flammable coal seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110514551A true CN110514551A (en) | 2019-11-29 |
| CN110514551B CN110514551B (en) | 2022-03-25 |
Family
ID=68624966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910715130.6A Active CN110514551B (en) | 2019-08-02 | 2019-08-02 | System and test method for measuring performance of fire-fighting spraying material for flammable coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110514551B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031627U (en) * | 2010-12-17 | 2011-11-09 | 神华集团有限责任公司 | A coal seam spontaneous combustion control system |
| US20140019047A1 (en) * | 2011-03-30 | 2014-01-16 | China University Of Mining And Technology | Multi-information coupling prediction method of coal and gas outburst danger |
| CN104296956A (en) * | 2014-09-09 | 2015-01-21 | 中国矿业大学 | Sublevel caving/mining longwall face goaf flow filed simulation test device and method |
| CN204495537U (en) * | 2014-10-16 | 2015-07-22 | 中国矿业大学(北京) | The change of tunnel smoke components and migration rule experimental system during a kind of spontaneous combustion of simulated coal |
| CN104990831A (en) * | 2015-06-01 | 2015-10-21 | 中国矿业大学 | Experimental platform simulating goaf air leakage and plugging |
| CN207004563U (en) * | 2017-07-24 | 2018-02-13 | 贵州大学 | A kind of device for preventing goaf coal body spontaneous combustion |
| CN109900549A (en) * | 2019-04-24 | 2019-06-18 | 龙岩学院 | A kind of Leaking Stoppage in Coal Mine wind material properties test device and its application method |
-
2019
- 2019-08-02 CN CN201910715130.6A patent/CN110514551B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202031627U (en) * | 2010-12-17 | 2011-11-09 | 神华集团有限责任公司 | A coal seam spontaneous combustion control system |
| US20140019047A1 (en) * | 2011-03-30 | 2014-01-16 | China University Of Mining And Technology | Multi-information coupling prediction method of coal and gas outburst danger |
| CN104296956A (en) * | 2014-09-09 | 2015-01-21 | 中国矿业大学 | Sublevel caving/mining longwall face goaf flow filed simulation test device and method |
| CN204495537U (en) * | 2014-10-16 | 2015-07-22 | 中国矿业大学(北京) | The change of tunnel smoke components and migration rule experimental system during a kind of spontaneous combustion of simulated coal |
| CN104990831A (en) * | 2015-06-01 | 2015-10-21 | 中国矿业大学 | Experimental platform simulating goaf air leakage and plugging |
| CN207004563U (en) * | 2017-07-24 | 2018-02-13 | 贵州大学 | A kind of device for preventing goaf coal body spontaneous combustion |
| CN109900549A (en) * | 2019-04-24 | 2019-06-18 | 龙岩学院 | A kind of Leaking Stoppage in Coal Mine wind material properties test device and its application method |
Non-Patent Citations (1)
| Title |
|---|
| 袁亮: "我国煤炭工业安全科学技术创新与发展", 《煤矿安全》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110514551B (en) | 2022-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022088454A1 (en) | Testing system and method for simulating change in tunnel excavation seepage under complex geological conditions | |
| CN108333291B (en) | Experimental device and experimental method for simulating goaf natural ignition | |
| CN107448188A (en) | Coal-bed gas parameter measuring while drilling method and device | |
| CN111271051B (en) | Three-way loading mine drilling and hole sealing effect simulation test device and method | |
| CN206573544U (en) | A kind of Fire-proof Finishing Agents for Textile detection means | |
| Li et al. | Experimental study on the infrared thermal imaging of a coal fracture under the coupled effects of stress and gas | |
| Guattari et al. | Influence of internal heat sources on thermal resistance evaluation through the heat flow meter method | |
| CN104251894B (en) | A kind of simulation coal mine gob note CO 2the proving installation of fire extinguishing | |
| CN109655575A (en) | It is a kind of to simulate spontaneous combustion in goaf and three experimental systems and method with distribution | |
| CN101858868B (en) | Method and device for testing distress in concrete | |
| CN102935275B (en) | A kind of test method and device evaluating total flooding extinguishing property | |
| CN105954459B (en) | The device that a kind of detection coal mine gob gas pumping influences on coal spontaneous combustion | |
| CN112647923A (en) | Simulation test device and method for large-scale coal underground gasification similar material | |
| CN105717019A (en) | Floor rock mass permeability coefficient test simulation method | |
| CN109696364A (en) | A kind of Exploding test imitative experimental appliance of explosion-proof fire dam | |
| CN205679555U (en) | A kind of coal mine gob distribution law of temperature field analog simulation experimental rig | |
| WO2024012419A1 (en) | Coal rock fracture visual grouting device and test method | |
| CN109855982A (en) | A kind of liquefied petroleum gas cylinder explosion test device and test method | |
| CN204101524U (en) | A kind of proving installation of simulating coal mine gob injecting CO 2 fire extinguishing | |
| CN111983133B (en) | Pipe gallery pipeline fire simulation experiment platform and experiment method thereof | |
| CN105510205A (en) | Collection device of migration parameters of radon in coal-rock mass porous media | |
| CN209387568U (en) | It is a kind of with cigarette is close and the flame retardant cable horizontal firing test device of temperature-monitoring function | |
| CN108572118A (en) | A kind of goaf fireproofing extinguishing materials performance measuring and evaluating experiment porch and method | |
| CN110514551A (en) | A kind of inflammable seam fire extinguishing sprayed on material Performance Measurement System and test method | |
| CN205374249U (en) | Bottom plate rock mass osmotic coefficient test analog system |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220222 Address after: 455000 west section of the Yellow River Road, Anyang Development Zone, Henan Applicant after: ANYANG INSTITUTE OF TECHNOLOGY Applicant after: North China University of water resources and hydropower Address before: No.36, Beihuan Road, Jinshui District, Zhengzhou City, Henan Province Applicant before: NORTH CHINA University OF WATER RESOURCES AND ELECTRIC POWER |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |