CN117664372A - Mine goaf natural ignition temperature measurement system based on computer - Google Patents
Mine goaf natural ignition temperature measurement system based on computer Download PDFInfo
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- CN117664372A CN117664372A CN202410128955.9A CN202410128955A CN117664372A CN 117664372 A CN117664372 A CN 117664372A CN 202410128955 A CN202410128955 A CN 202410128955A CN 117664372 A CN117664372 A CN 117664372A
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims description 57
- 210000001503 joint Anatomy 0.000 claims description 28
- 238000005192 partition Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 239000001307 helium Substances 0.000 description 11
- 229910052734 helium Inorganic materials 0.000 description 11
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000003245 coal Substances 0.000 description 9
- 238000005086 pumping Methods 0.000 description 7
- 230000000875 corresponding effect Effects 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013524 data verification Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/28—Measuring temperature based on the expansion or contraction of a material the material being a gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention provides a computer-based natural ignition temperature measurement system for a mine goaf, which is applied to the technical field of mine fire prevention.
Description
Technical Field
The invention relates to the technical field of mine fireproof, in particular to a computer-based natural ignition temperature measurement system for a mine goaf.
Background
The goaf of the coal mine is a cavity or cavity formed after underground coal or gangue and the like are mined in the working process of the coal mine, if heat energy generated after coal oxidation is not timely dissipated in the goaf, coal seam combustion is easy to occur, the phenomenon is called natural ignition of the goaf of the coal mine, and in the coal mine mining industry, the natural ignition of the goaf of the coal mine is one of important factors threatening the safety production of the coal mine.
In order to ensure the safety of a mine goaf, the temperature in the goaf is monitored timely and accurately, the monitoring of the natural ignition phenomenon in the mine goaf is realized in a temperature monitoring mode in the prior art, a large number of temperature sensors are distributed in the mine goaf, the ambient temperature in the surrounding area is measured and reported in real time by means of the temperature sensors, and although the data collected by the temperature sensors in the adjacent areas can be mutually verified, the judgment basis of the natural ignition is only dependent on the temperature sensors, so that the judgment basis of the natural ignition result is too single, misinformation, missing report and the like are caused, and the accuracy and the stability of the monitoring of the natural ignition phenomenon in the mine goaf are finally affected.
Therefore, a computer-based natural ignition temperature measurement system for a mine goaf is provided to solve some problems in the prior art.
Disclosure of Invention
The invention aims to improve the accuracy and stability of natural ignition temperature measurement supervision of a mine goaf, avoid the situation that false alarm and missing alarm occur due to excessively single judgment, and compared with the prior art, the invention provides a computer-based natural ignition temperature measurement system for the mine goaf, which comprises a server and a main pipeline paved in the mine goaf, wherein a cable bundle is inserted into the end wall of the main pipeline, a plurality of monitoring units uniformly distributed in the mine goaf are connected onto the main pipeline, each monitoring unit comprises a shell, a temperature sensor is fixedly arranged at the bottom of the shell and is electrically connected with the server through the cable bundle, a gas bin is arranged in the shell, and a gas pressure sensor is fixedly arranged in the gas bin and is electrically connected with the server through the cable bundle.
Further, the inside fixed mounting of casing has high temperature resistant gasbag, and fixedly connected with goes up the hose that extends to the casing outside on the high temperature resistant gasbag, and the hose is connected with the main line, has seted up the fretwork district on the outer end wall of casing, and the main line external connection has the air pump.
Further, a flow valve is fixedly arranged at the position where the high-temperature-resistant air bag is communicated with the hose, and the inlet and outlet thresholds of the flow valve are constant.
Further, the main pipeline is suspended in the mine goaf, the appearance of the shell is provided with an oval structure which is vertically arranged, the upper half part of the shell is provided with a closed structure, and the hollowed-out areas are evenly distributed on the lower half part of the shell.
Further, reinforcing ribs which are arranged in parallel with the cable bundles are inserted into the end wall of the main pipeline, the reinforcing ribs are arranged at the upper position in the end wall of the main pipeline, and the cable bundles are arranged at the lower position in the end wall of the main pipeline.
Further, the inside of main pipeline is provided with first air flue and second air flue respectively, and the air pump is provided with two altogether to be connected with first air flue and second air flue respectively, the hose in two adjacent monitoring units is linked together with first air flue and second air flue respectively.
Further, be provided with the connecting piece between main pipeline and the hose, the connecting piece is including the inner tube of cover outside of locating the main pipeline, and fixed mounting has the intubate on the inner tube, and encircles on the side end wall of intubate and offered the third butt joint hole, and the outside of inner tube rotates the overcoat that has cup jointed and be linked together with the hose.
Further, the inner tube is including barrel one and barrel two that set up for C font structure, and barrel one and barrel two's junction mutual block, and the overcoat is including the cover shell one and the cover shell two that set up for C font structure, and the draw-in groove has been seted up in the end outside of cover shell one, and the end outside of cover shell two is fixed with the fixture block with draw-in groove looks adaptation.
Further, set up the gas pocket that runs through the intercommunication between first air flue and second air flue on the outer end wall of main pipeline, and the gas pocket internal fixation inlays there is the valve pipe of internal dimension and intubate looks adaptation, the intermediate position of valve pipe is fixed with the division board of separating between first air flue and second air flue, and the both sides of division board all are fixed with the spring that sets up in the valve intraductal, the valve piece of movable shutoff in corresponding direction valve pipe end is all fixed to the other end of every spring, the first butt joint hole and the second butt joint hole of the adaptation of third butt joint hole have been seted up on the side end wall of valve pipe, first butt joint hole is located first air flue, the second butt joint hole is located the second air flue.
Further, a cylinder which is vertically arranged is fixedly arranged in the shell, pull ropes with two ends extending to the outer side of the shell are movably inserted in the cylinder, anchors are fixedly connected to the two ends of the pull ropes respectively, and the anchors connected to the two ends of the same pull rope are anchored on the inner end walls of the upper side and the lower side of the mine goaf respectively.
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, the temperature sensor and the air bin with the air pressure sensor arranged inside are integrated in the monitoring unit, so that the temperature measuring system can directly monitor the ambient temperature change in the goaf through the temperature sensor in the operation process, and can monitor the air pressure change caused by the expansion and contraction of nitrogen in the air bin through the temperature acting on nitrogen in the air bin by means of the air pressure sensor, so that the secondary verification of the temperature change in the goaf is realized, the judging result of the temperature measuring system on natural ignition is supported by double data, the false alarm and leakage probability of the temperature measuring system when the temperature measuring system monitors the natural ignition of the goaf of a mine can be effectively reduced, the judgment accuracy of the natural ignition phenomenon can be improved, and the safety in the goaf of the mine is improved to a certain extent.
(2) Through installing high temperature resistant gasbag in the casing, cooperation main line and hose are connected high temperature resistant gasbag and air pump for when this temperature measurement system operates, can fill through the air pump to the high temperature resistant gasbag in carry out the operation of putting of helium, fill the change of the back-and-forth expansion volume of helium with the help of high temperature resistant gasbag, change single monitoring unit's bulk density, make monitoring unit can float from top to bottom in the mine goaf, effectively promoted single monitoring unit internal temperature sensor and air pressure sensor to the scope of action of ambient temperature change monitoring, effectively reduced the use amount of monitoring unit in the vertical space, can reduce the cost loss when this system is built to a certain extent.
(3) Through unsettled setting up main line and the monitoring unit in the mine goaf for even there is the condition that the rubble dropped in the goaf, also can not form the burial to unsettled main line and the monitoring unit that floats, simultaneously, through and set up the appearance of casing to vertical oval structure that sets up, and set up the latter half of casing with the fretwork district, make the latter half of casing present smooth enclosed construction, can effectively reduce the area of atress at casing top, even the rubble that drops downwards smashes at the top of casing, also can not be detained at the top of casing, can effectively ensure the stability of this temperature measurement system operation under the rubble condition that drops.
(4) The first air passage and the second air passage in the main pipeline are used for connecting the two pumping pumps with half of high-temperature-resistant air bags respectively, and the running states of the two pumping pumps are set to be opposite, so that the up-down lifting directions of the two adjacent monitoring units are opposite, the positions of the monitoring units are up and down at the same moment, the monitoring units can be prevented from being located in the upper space of the goaf or the lower space of the goaf at the same moment, the attribute of a data acquisition area is prevented from being single, and the accuracy and the comprehensiveness of the temperature measuring system for measuring and monitoring the ambient temperature in the goaf are further improved.
(5) Through evenly open the numerous gas pockets that are linked together with first air flue and second air flue on the outer end wall of main pipeline, the connection of cooperation connecting piece for this temperature measurement system can be according to the demand when in actual use, nimble density and the quantity of monitoring unit installation on main pipeline and with the state of first air flue/second air flue intercommunication, effectively promoted the flexibility in this temperature measurement system in-service use.
Drawings
FIG. 1 is a perspective view of a monitoring unit of the present invention;
FIG. 2 is a side cross-sectional view of the structure of FIG. 1 in accordance with the present invention;
FIG. 3 is a top cross-sectional view of the structure of FIG. 1 in accordance with the present invention;
FIG. 4 is a perspective view of a single monitoring unit of the present invention connected to a main pipeline;
FIG. 5 is a perspective view of a connector of the present invention;
FIG. 6 is a side cross-sectional view of the structure of FIG. 5 in accordance with the present invention;
FIG. 7 is a disassembled view of the front view of the structure of FIG. 5 according to the present invention;
FIG. 8 is a split view of the structure of FIG. 5 from the backside view of the structure of the present invention;
FIG. 9 is a split view of the inner barrel and outer sleeve of the present invention;
fig. 10 is a schematic diagram of the present invention in an actual operating state.
The reference numerals in the figures illustrate:
1. a main pipeline; 101. a cable bundle; 102. a first airway; 103. a second airway; 104. air holes; 105. reinforcing ribs; 2. a monitoring unit; 201. a housing; 202. a temperature sensor; 203. a gas bin; 204. an air pressure sensor; 205. a high temperature resistant air bag; 206. a hose; 207. a flow valve; 208. hollow areas; 3. a valve tube; 301. a partition plate; 302. a spring; 303. a valve block; 304. a first docking aperture; 305. a second docking aperture; 4. a connecting piece; 401. an inner cylinder; 4011. a first cylinder body; 4012. a second cylinder; 402. a cannula; 403. a third docking aperture; 404. a jacket; 4041. a first shell; 4042. a second shell; 4043. a clamping groove; 4044. a clamping block; 5. a cylinder; 501. a pull rope; 502. and (5) anchoring.
Detailed Description
The embodiments of the present invention will be described in detail and fully with reference to the accompanying drawings, and it is intended that all other embodiments of the invention, which are apparent to one skilled in the art without the inventive faculty, are included in the scope of the present invention.
Embodiment one:
the invention provides a computer-based natural ignition temperature measurement system for a mine goaf, referring to fig. 1-10, comprising a server and a main pipeline 1 paved in the mine goaf, wherein a cable bundle 101 is inserted in the end wall of the main pipeline 1, a plurality of monitoring units 2 uniformly distributed in the mine goaf are connected to the main pipeline 1, each monitoring unit 2 comprises a shell 201, a temperature sensor 202 is fixedly arranged at the bottom of the shell 201, the temperature sensor 202 is electrically connected with the server through the cable bundle 101, a gas bin 203 is arranged in the shell 201, a gas pressure sensor 204 is fixedly arranged in the gas bin 203, and the gas pressure sensor 204 is electrically connected with the server through the cable bundle 101.
When the temperature measurement system operates, the air bin 203 is filled with a constant amount of nitrogen, the temperature sensors 202 carried in each monitoring unit 2 can monitor the ambient temperature in the peripheral area in real time and transmit the measured temperature to the server for processing, meanwhile, the air pressure sensor 204 installed in the air bin 203 can monitor the air pressure intensity in the air bin 203 in real time, when the ambient temperature rises, the nitrogen filled in the air bin 203 is heated and expanded, the air pressure sensor 204 can monitor the air pressure intensity in the air bin 203 to be gradually increased, when the ambient temperature decreases, the nitrogen filled in the air bin 203 can be contracted by cooling, the air pressure sensor 204 can monitor the air pressure intensity in the air bin 203 to be gradually reduced, the air pressure intensity in the air bin 203 is monitored by the air pressure sensor 204 to be correlated with the ambient temperature, the air pressure intensity change collected by the air pressure sensor 204 can be transmitted to the server in real time, the air pressure data collected by the air pressure sensor 202 are compared, the data are mutually verified, the data of the air pressure sensors 202 in the adjacent areas are mutually verified, and the accurate and the mutual verification results can be obtained by the aid of the air pressure sensors 204 in the adjacent areas.
When a natural ignition phenomenon occurs in a certain area in a mine goaf provided with the temperature measuring system, the temperature in the area is quickly increased, at the moment, the temperature sensor 202 in the monitoring unit 2 in the area can acquire the rapid increase of the ambient temperature, the air pressure sensor 204 can acquire the rapid increase of the air pressure intensity in the air bin 203, the air bin 203 is made of a material which can be ignited, the material can be plastic, when the natural ignition flame is roasted to the air bin 203, the air bin 203 is burnt and broken, the air pressure in the material is released, the air pressure intensity monitored by the air pressure sensor 204 suddenly drops, so that when the server processes data, if the data acquired by the temperature sensor 202 and the air pressure sensor 204 in the corresponding monitoring unit 2 in the area are received, the data acquired by the air pressure sensor 204 are obviously increased, the area is marked as a high-risk early warning area after the air pressure data acquired by the air pressure sensor 204 is increased to a certain extent, then the server immediately retrieves and processes the data of the air pressure sensor 204 in the adjacent monitoring unit 2 in the area, and the air pressure sensor 204 in the area is detected to be close to the relevant area, and the alarm area is immediately sent out when the data is detected to be higher, and the alarm area is detected that the alarm area is higher.
In the running process of the system, whether a natural ignition phenomenon exists in a certain area in a mine goaf is judged, the result of the natural ignition phenomenon needs to be supported by environmental temperature data acquired by a temperature sensor 202 in a monitoring unit 2 in a corresponding area and air pressure change data in an air bin 203 acquired by an air pressure sensor 204, auxiliary verification of data acquired by the temperature sensor 202 and the air pressure sensor 204 in the monitoring unit 2 in adjacent peripheral areas is assisted, and under double data verification, the probability of false alarm and missing report when the temperature measuring system monitors the natural ignition of the mine goaf can be effectively reduced, so that the judgment accuracy of the natural ignition phenomenon is improved, and the safety in the mine goaf is improved.
Referring to fig. 2-4, a refractory airbag 205 is fixedly installed inside a housing 201, a hose 206 extending to the outside of the housing 201 is fixedly connected to the refractory airbag 205, the hose 206 is connected with a main pipeline 1, a hollow area 208 is formed on the outer end wall of the housing 201, an air pump is externally connected to the main pipeline 1, a flow valve 207 is fixedly installed at the position where the refractory airbag 205 is communicated with the hose 206, and the inlet and outlet thresholds of the flow valve 207 are constant.
Intermittent inflation and deflation operations are performed on the high-temperature-resistant air bags 205 through the air pump, so that the monitoring units 2 can float up and down in the mine goaf, the range of monitoring the ambient temperature change by the temperature sensor 202 and the air pressure sensor 204 in the single monitoring unit 2 is effectively improved, the usage amount of the monitoring units 2 in the vertical space is effectively reduced, the cost loss of the system during construction can be reduced to a certain extent, the partition plates for blocking the air bags 203 and the high-temperature-resistant air bags 205 are fixed in the shell 201, and interference caused by the inflation and deflation operations in the high-temperature-resistant air bags 205 to the air pressure change in the air bags 203 can be avoided through the partition plates.
In the operation process of the temperature measurement system, after the pumping pump is started, the flow valve 207 is synchronously electrified to operate, the flow valve 207 is fixedly arranged at the communication position of the high-temperature-resistant air bags 205 and the hose 206, and the single filling amount and the single pumping amount of helium in the high-temperature-resistant air bags 205 are controlled, so that the final filling amount of helium in each high-temperature-resistant air bag 205 is constant in each inflating process, the same constant helium amount pumped out in each high-temperature-resistant air bag 205 can be ensured in each pumping process, the change of each high-temperature-resistant air bag 205 is uniform during the inflation and deflation operation, the situations that part of high-temperature-resistant air bags 205 are excessively filled and part of high-temperature-resistant air bags 205 are insufficiently filled are avoided, the situations that part of high-temperature-resistant air bags 205 are excessively filled and part of high-temperature-resistant air bags 205 are insufficiently pumped are avoided, the up and down control of each monitoring unit 2 is realized through pumping and deflation in each temperature measurement system is effectively ensured, and the operation is simple and effective, and the stability in the operation process of the temperature measurement system is ensured.
Referring to fig. 1, 5 and 10, the main pipeline 1 is suspended in a mine goaf, the housing 201 is provided with an oval structure in a vertical arrangement, the upper half of the housing 201 is provided with a closed structure, the hollowed-out area 208 is uniformly distributed on the lower half of the housing 201, the end wall of the main pipeline 1 is internally inserted with reinforcing ribs 105 parallel to the cable bundle 101, the reinforcing ribs 105 are arranged at the upper position in the end wall of the main pipeline 1, the cable bundle 101 is arranged at the lower position in the end wall of the main pipeline 1, and when the temperature measuring system operates, the main pipeline 1 and the monitoring unit 2 are suspended in the mine goaf, so that even if broken stone falls in the goaf, the suspended main pipeline 1 and the floating monitoring unit 2 cannot be buried, and the operation stability of the temperature measuring system under the condition that broken stone falls can be effectively ensured.
Meanwhile, the shape of the shell 201 is set to be an oval structure in vertical arrangement, the hollow area 208 is provided with the lower half part of the shell 201, the upper half part of the shell 201 is made to be of a smooth closed structure, the stressed area of the top of the shell 201 can be effectively reduced, broken stone falling downwards can rapidly slide down even if smashing the broken stone falling downwards at the top of the shell 201, the broken stone cannot stay at the top of the shell 201, the influence of the broken stone falling on the lifting fluctuation of the monitoring unit 2 can be further reduced, and the daily running stability of the monitoring unit 2 in the system is improved to a certain extent.
Referring to fig. 5, 6 and 10, a first air passage 102 and a second air passage 103 are respectively provided in the main pipeline 1, two air pumps are respectively provided and connected with the first air passage 102 and the second air passage 103, hoses 206 in two adjacent monitoring units 2 are respectively communicated with the first air passage 102 and the second air passage 103, a connecting piece 4 is provided between the main pipeline 1 and the hoses 206, the connecting piece 4 comprises an inner cylinder 401 sleeved outside the main pipeline 1, an insertion tube 402 is fixedly mounted on the inner cylinder 401, a third butt joint hole 403 is formed on the side end wall of the insertion tube 402 in a surrounding manner, and an outer sleeve 404 communicated with the hoses 206 is rotatably sleeved outside the inner cylinder 401.
When the temperature measurement system is operated, the hoses 206 in the monitoring units 2 are respectively communicated with the first air passage 102 and the second air passage 103, so that when the previous high temperature resistant Wen Qinang air pump 205 is communicated with the first air passage 102, the next high temperature resistant air pump 205 is communicated with the second air passage 103, when the previous high temperature resistant Wen Qinang air pump 205 is communicated with the second air passage 103, the next high temperature resistant air pump 205 is communicated with the first air passage 102, the communication of the high temperature resistant air pumps 205 with the first air passage 102 and the second air passage 103 is staggered, the operation states of the two air pumps are opposite at the same moment, and when one air pump performs helium filling operation on the inside of one half of the high temperature resistant air pumps 205 through the first air passage 102, the other air pump performs helium pumping operation on the inside of the other half of the high temperature resistant air pumps 205 through the second air passage 103, and vice versa.
Because two air pumps correspond to control the high temperature resistant air bags 205 of half quantity respectively, and the running states of two air pumps are opposite, when this temperature measurement system operates, the running direction of two adjacent monitoring units 2 is opposite, and one is upwards, and one is downwards, when one of them monitoring unit 2 monitors mine goaf upper strata space ambient temperature, another adjacent monitoring unit 2 then can monitor mine goaf lower strata space ambient temperature, and the position of numerous monitoring units 2 has the top and bottom in the same moment, can avoid numerous monitoring units 2 to be in goaf upper strata space simultaneously in the same moment, or the lower strata space of goaf, avoid data acquisition regional attribute singleness, further promoted the accuracy and the comprehensiveness of this temperature measurement system to goaf internal environment temperature measurement monitoring.
In this temperature measurement system, when aerifing, helium in first air flue 102/second air flue 103 passes through first butt joint hole 304, the butt joint intercommunication of second butt joint hole 305 and third butt joint hole 403, get into in the intubate 402, reentrant overcoat 404 is interior, then get into in the high temperature resistant gasbag 205 through the connection of hose 206, the helium flow direction during the time of bleeding is then opposite, through rotating the cover of intubate 402 establish the inner tube 401 outside that cup joints on main line 1 for hose 206 and main line 1's hookup location can swing in a flexible way according to the lift of monitoring unit 2, avoid monitoring unit 2 lift in-process hose 206 both ends hookup location bending amplitude too big and flattening, be favorable to guaranteeing helium circulation smoothness.
Referring to fig. 6-9, the inner cylinder 401 includes a first cylinder 4011 and a second cylinder 4012 which are arranged in a C-shaped structure, the connection part of the first cylinder 4011 and the second cylinder 4012 is clamped with each other, the outer sleeve 404 includes a first sleeve 4041 and a second sleeve 4042 which are arranged in a C-shaped structure, a clamping groove 4043 is formed in the outer end of the first sleeve 4041, a clamping block 4044 matched with the clamping groove 4043 is fixed in the outer end of the second sleeve 4042, an air hole 104 penetrating and communicating between the first air channel 102 and the second air channel 103 is formed in the outer end wall of the main pipeline 1, a valve pipe 3 with an inner size matched with the insertion pipe 402 is fixedly embedded in the air hole 104, a partition plate 301 which is separated between the first air channel 102 and the second air channel 103 is fixed in the middle of the valve pipe 3, springs 302 which are arranged in the valve pipe 3 are fixed on two sides of the partition plate 301, a valve block 303 which is movably blocked in the end of the corresponding direction valve pipe 3 is fixedly arranged on the other end of each spring 302, a first butt joint hole 304 and a second butt joint hole 304 which is matched with the third butt joint hole 403 are formed in the side end wall of the valve pipe 3, and the second butt joint hole 304 is located in the second air channel 102.
In the temperature measurement system, a plurality of air holes 104 are uniformly formed in the outer end wall of a main pipeline 1 along the axial direction of the main pipeline 1, a valve pipe 3 is installed in the plurality of air holes 104, under the elastic support of a spring 302, a valve block 303 moves to the end position of the valve pipe 3, two valve blocks 303 respectively plug two ends of the valve pipe 3, when an inner cylinder 401 is sleeved outside the main pipeline 1, a cannula 402 installed on the end wall of the inner cylinder is embedded in the end of the valve pipe 3, the valve block 303 is extruded, the valve block 303 overcomes the elastic support of the spring 302 and moves, the valve block 303 at the corresponding position passes through a first butt joint hole 304/a second butt joint hole 305, the valve block 303 is not blocked and plugged any more, and after the valve block 303 is extruded, a third butt joint hole 403 is in butt joint communication with the corresponding first butt joint hole 304/the second butt joint hole 305, so that helium gas flow communication is realized.
Through split into barrel one 4011 and barrel two 4012 that C font structure set up with inner tube 401 from the centre to through block interconnect, simultaneously, through split into two with the overcoat 404 for C font structure set up first 4041 of cover shell two 4042, cooperation draw-in groove 4043 and fixture block 4044's block, make inner tube 401 and overcoat 404 can the convenient block cup joint in the outside of main pipeline 1, this makes this temperature measurement system can be according to the demand when in actual use, the density and the quantity of monitoring unit 2 installation on main pipeline 1 are adjusted in a flexible way through connecting piece 4, and the state of communicating with first air flue 102/second air flue 103, can effectively promote the flexibility in this temperature measurement system in-service use.
Referring to fig. 2, 4 and 10, a vertically arranged cylinder 5 is fixedly installed in a shell 201, pull ropes 501 with two ends extending to the outer side of the shell 201 are movably inserted in the cylinder 5, two ends of each pull rope 501 are fixedly connected with anchor nails 502 respectively, the anchor nails 502 connected with two ends of the same pull rope 501 are anchored on inner end walls of the upper side and the lower side of a mine goaf respectively, when the temperature measuring system operates, the pull ropes 501 are vertically arranged in the mine goaf through the anchoring of the anchor nails 502, the vertically fixed cylinder 5 in the shell 201 is movably sleeved on the outer side of the pull ropes 501, and by means of the cooperation of the cylinder 5 and the pull ropes 501, the up-down lifting path of the monitoring units 2 can be guided and limited, so that the space for collecting data of the monitoring units 2 is further stable, the monitoring units 2 floating in the air are prevented from being wound in a disordered manner due to the influence of air flow, and the stability of up-down reciprocating lifting of a plurality of monitoring units 2 in the mine goaf is facilitated.
The present invention is not limited to the preferred embodiments described above, but is merely preferred for practical application.
Claims (10)
1. The utility model provides a mine goaf natural ignition temperature measurement system based on computer, includes server and lays main pipeline (1) in the mine goaf, its characterized in that, interlude has cable bundle (101) in the end wall of main pipeline (1), be connected with a plurality of evenly distributed monitoring unit (2) in the mine goaf on main pipeline (1), monitoring unit (2) include casing (201), and the bottom fixed mounting of casing (201) has temperature sensor (202), temperature sensor (202) are through cable bundle (101) and server electric connection, install gas storehouse (203) in casing (201), and fixed mounting has air pressure sensor (204) in gas storehouse (203), air pressure sensor (204) are through cable bundle (101) and server electric connection.
2. The computer-based mine goaf natural ignition temperature measurement system according to claim 1, wherein a high temperature resistant air bag (205) is fixedly installed in the shell (201), a hose (206) extending to the outer side of the shell (201) is fixedly connected to the high temperature resistant air bag (205), the hose (206) is connected with a main pipeline (1), a hollow area (208) is formed in the outer end wall of the shell (201), and an air pump is externally connected to the main pipeline (1).
3. The computer-based mine goaf natural ignition temperature measurement system according to claim 2, wherein a flow valve (207) is fixedly installed at a position where the high temperature resistant air bag (205) is communicated with the hose (206), and the inlet and outlet air thresholds of the flow valve (207) are constant.
4. The computer-based mine goaf natural ignition temperature measurement system is characterized in that the main pipeline (1) is suspended in the mine goaf, the appearance of the shell (201) is of a vertically arranged oval structure, the upper half part of the shell (201) is of a closed structure, and the hollowed-out areas (208) are uniformly distributed on the lower half part of the shell (201).
5. The computer-based mine goaf natural ignition temperature measurement system according to claim 2, wherein a reinforcing rib (105) which is arranged in parallel with a cable bundle (101) is inserted into the end wall of the main pipeline (1), the reinforcing rib (105) is arranged at the upper position in the end wall of the main pipeline (1), and the cable bundle (101) is arranged at the lower position in the end wall of the main pipeline (1).
6. The mine goaf natural ignition temperature measurement system based on the computer according to claim 2, wherein a first air passage (102) and a second air passage (103) are respectively arranged in the main pipeline (1), the air pump is provided with two air pumps, the air pumps are respectively connected with the first air passage (102) and the second air passage (103), and hoses (206) in two adjacent monitoring units (2) are respectively communicated with the first air passage (102) and the second air passage (103).
7. The computer-based mine goaf natural ignition temperature measurement system of claim 6, wherein a connecting piece (4) is arranged between the main pipeline (1) and the hose (206), the connecting piece (4) comprises an inner cylinder (401) sleeved outside the main pipeline (1), an insertion pipe (402) is fixedly arranged on the inner cylinder (401), a third butt joint hole (403) is formed in the side end wall of the insertion pipe (402) in a surrounding mode, and an outer sleeve (404) communicated with the hose (206) is sleeved on the outer side of the inner cylinder (401) in a rotating mode.
8. The computer-based mine goaf natural ignition temperature measurement system of claim 7, wherein the inner barrel (401) comprises a first barrel (4011) and a second barrel (4012) which are arranged in a C-shaped structure, the joint of the first barrel (4011) and the second barrel (4012) is clamped with each other, the outer sleeve (404) comprises a first sleeve (4041) and a second sleeve (4042) which are arranged in the C-shaped structure, a clamping groove (4043) is formed in the outer side of the end of the first sleeve (4041), and a clamping block (4044) matched with the clamping groove (4043) is fixed in the outer side of the end of the second sleeve (4042).
9. The mine goaf natural ignition temperature measurement system based on the computer is characterized in that an air hole (104) which is communicated between a first air passage (102) and a second air passage (103) is formed in the outer end wall of the main pipeline (1), a valve pipe (3) with the inner size matched with a cannula (402) is fixedly inlaid in the air hole (104), a partition plate (301) which is separated between the first air passage (102) and the second air passage (103) is fixedly arranged in the middle position of the valve pipe (3), springs (302) which are arranged in the valve pipe (3) are fixedly arranged on the two sides of the partition plate (301), valve blocks (303) which are movably plugged in the ends of the corresponding direction valve pipes (3) are fixedly arranged at the other ends of the springs (302), a first butt joint hole (304) and a second butt joint hole (305) which are matched with a third butt joint hole (403) are formed in a surrounding mode on the side end wall of the valve pipe (3), and the first butt joint hole (304) is located in the first air passage (102) and the second butt joint hole (305) is located in the second air passage (305).
10. The computer-based natural ignition temperature measurement system for the mine goaf of claim 6, wherein a cylinder (5) which is vertically arranged is fixedly arranged in the shell (201), pull ropes (501) with two ends extending to the outer side of the shell (201) are movably inserted in the cylinder (5), anchor nails (502) are fixedly connected to the two ends of each pull rope (501), and the anchor nails (502) connected with the two ends of each pull rope (501) are respectively anchored on the inner end walls of the upper side and the lower side of the mine goaf.
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| CN202410128955.9A CN117664372B (en) | 2024-01-31 | 2024-01-31 | Mine goaf natural ignition temperature measurement system based on computer |
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| CN108590743A (en) * | 2018-05-25 | 2018-09-28 | 河北工程大学 | A kind of gas boring and surveying device |
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| JPH04189998A (en) * | 1990-09-27 | 1992-07-08 | Baroid Technol Inc | Well pressure and temperature measuring device |
| CN101183479A (en) * | 2007-11-09 | 2008-05-21 | 张陈 | Fusible air duct type linear temperature-sensitive detector |
| CN201716812U (en) * | 2010-05-05 | 2011-01-19 | 江苏今创安达交通信息技术有限公司 | Disaster prevention and safety monitoring system |
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