CN205449181U - Colliery beam tube blocking detection equipment and flow monitoring module based on ultrasonic wave - Google Patents
Colliery beam tube blocking detection equipment and flow monitoring module based on ultrasonic wave Download PDFInfo
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- CN205449181U CN205449181U CN201521128505.2U CN201521128505U CN205449181U CN 205449181 U CN205449181 U CN 205449181U CN 201521128505 U CN201521128505 U CN 201521128505U CN 205449181 U CN205449181 U CN 205449181U
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Abstract
The utility model relates to a colliery beam tube blocking detection equipment and flow monitoring module based on ultrasonic wave, blocking detection equipment includes ultrasonic wave flow monitoring module and blocking detection control module, wherein ultrasonic wave flow monitoring module is including the test casing that is used for wearing to establish the test pipeline, be provided with an ultrasonic transducer and the 2nd ultrasonic transducer who is used for the measured flow body velocity of flow on the test casing relatively, the test casing lies in between an ultrasonic transducer and the 2nd ultrasonic transducer, the test casing is including two walls that supply the ultrasonic wave to pass, two walls all with horizontal tilt or perpendicular. The utility model discloses a there is certain angle in two walls of test casing with the level to make two walls of test casing when having hydrometeor, the steam that condenses can drop in the test casing, has avoided two walls because hydrometeor and influence the effect that ultrasonic transducer's ultrasonic signal passed test casing wall has improved the monitoring precision.
Description
Technical field
This utility model relates to a kind of colliery based on ultrasound wave beam tube jam detection equipment and flow monitoring module thereof, belongs to mine flow monitoring technical field.
Background technology
Coal mine gob fire monitoring commonly used colliery beam tube fire hazard monitoring system at present.In actual applications, due to goaf, face upper corner angle etc. monitoring position air humidity the highest, and beam tube extraction distance is up to several kilometers even tens kilometers, in gas sampling process, steam can constantly condense, beam tube is caused to be lost gas sampling function by water slug, have to regularly schedule personnel for this colliery unit investigate along beam tube, add maintenance workload, need for this kind of can the device of monitor beam blockage automatically.The patent document of Application No. CN201410399863.0 discloses a kind of mining ultrasound wave piping flow measurement apparatus, measurement apparatus disclosed in it includes the control processing unit of a pair ultrasonic transducer and the correspondence being arranged on pipeline to be measured, fluid flow can be calculated by time difference method measuring principle, two of which ultrasonic transducer is arranged on the not homonymy of pipeline fluid to be measured, such set-up mode, make at least one ultrasonic transducer end face cannot be with horizontal plane or vertical, cause affecting ultrasonic transducer due to condensation vapor normally to work, so that certainty of measurement reduces.
Utility model content
The purpose of this utility model is to provide colliery based on ultrasound wave beam tube jam detection equipment and flow monitoring module thereof, normally works the problem that caused accuracy of detection reduces solving to affect ultrasonic transducer due to condensation vapor.
This utility model is to solve above-mentioned technical problem to provide a kind of colliery based on ultrasound wave beam tube jam detection equipment, this jam detection equipment includes ultrasonic flow monitoring modular and jam detection control module, described ultrasonic flow monitoring modular includes the test housing for wearing test pipeline, the first ultrasonic transducer for measuring rate of flow of fluid and the second ultrasonic transducer it is relatively set with on described test housing, described test housing is between the first ultrasonic transducer and the second ultrasonic transducer, described test housing includes two walls passed for ultrasound wave, two described walls all with horizontal plane or vertical.
Described test housing is a straight tube, and two described walls are each perpendicular to straight tube.
The first described ultrasonic transducer and the second ultrasonic transducer correspondence respectively are sticked on two walls.
Two openings being used for wearing test pipeline on described test shell are arranged respectively close to corresponding wall.
Described jam detection control module includes cpu control circuit, drive circuit, signal conditioning circuit and control switching circuit, described first ultrasonic transducer and the second ultrasonic transducer are all connected to drive circuit and signal conditioning circuit by control switching circuit, described control switching circuit is for controlling the switching of drive circuit and signal conditioning circuit, drive circuit and signal conditioning circuit circulation is made to be connected with the first ultrasonic transducer and the second ultrasonic transducer, control the signal transmission and reception processing of the first ultrasonic transducer and the second ultrasonic transducer, the outfan of signal conditioning circuit is connected with cpu control circuit, cpu control circuit carries out judgment of clogging according to collecting ultrasonic signal.
Described jam detection control module also includes indicating warning circuit, and this instruction warning circuit is connected with cpu control circuit, for detecting that pipeline occurs that blocking indicates or reports to the police at cpu control circuit.
This utility model additionally provides a kind of ultrasonic flow monitoring modular, this monitoring modular includes the test housing for wearing test pipeline, the first ultrasonic transducer for measuring rate of flow of fluid and the second ultrasonic transducer it is relatively set with on described test housing, described test housing is between the first ultrasonic transducer and the second ultrasonic transducer, described test housing includes two walls passed for ultrasound wave, two described walls all with horizontal plane or vertical.
Described test housing is a straight tube, and two described walls are each perpendicular to straight tube.
The first described ultrasonic transducer and the second ultrasonic transducer correspondence respectively are sticked on two walls.
Two openings being used for wearing test pipeline on described test shell are arranged respectively close to corresponding wall.
The beneficial effects of the utility model are: jam detection equipment of the present utility model includes ultrasonic flow monitoring modular and jam detection control module, wherein ultrasonic flow monitoring modular includes the test housing for wearing test pipeline, it is relatively set with the first ultrasonic transducer for measuring rate of flow of fluid and the second ultrasonic transducer on test housing, test housing is between the first ultrasonic transducer and the second ultrasonic transducer, test housing includes two walls passed for ultrasound wave, two walls all with horizontal plane or vertical.This utility model uses two walls of test housing to there is certain angle with level, so that two walls of test housing are when there being condensation vapor, the steam condensed can drop to test in housing, avoid two walls and affect the ultrasonic signal of the ultrasonic transducer effect through test shell wall side due to condensation vapor, improve monitoring accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model ultrasonic flow monitoring modular；
Fig. 2 is the structural representation of this utility model colliery based on ultrasound wave beam tube jam detection equipment.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further.
The embodiment of colliery based on ultrasound wave of the present utility model beam tube jam detection equipment
Colliery based on ultrasound wave of the present utility model beam tube jam detection equipment is as shown in Figure 2, including ultrasonic flow monitoring modular and jam detection control module, wherein ultrasonic flow monitoring modular is as shown in Figure 1, including the test housing for wearing test pipeline, it is relatively set with the first ultrasonic transducer for measuring rate of flow of fluid and the second ultrasonic transducer on test housing, test housing is between the first ultrasonic transducer and the second ultrasonic transducer, test housing includes two walls passed for ultrasound wave, two walls all with horizontal plane or vertical.When this monitoring modular is installed on beam tube, owing to two walls of test housing exist certain angle with level, so that two walls of test housing are when there being condensation vapor, the steam condensed can drop to test in housing, avoid two walls and affect the ultrasonic signal of the ultrasonic transducer effect through test shell wall side due to condensation vapor, improve monitoring accuracy.
Wherein test housing can use the form of straight tube, two walls are each perpendicular to straight tube, as shown in Figure 1, when this ultrasonic flow monitoring modular is connected on beam tube to be measured, ultrasonic transducer end face and horizontal plane, can effectively prevent condensation vapor from affecting normal work, in the present embodiment, the end face distance of 2 ultrasonic transducers is 8cm.The air inlet 5 for connecting beam tube to be measured and gas outlet 6 is offered on test housing 1, in order to improve measuring accuracy, making ultrasound wave pass more gas, the present embodiment is arranged being used for wearing the air inlet 5 of beam tube 7 to be measured and gas outlet 6 near test two walls 4 of housing.Ultrasonic signal in order to make ultrasonic transducer launch completely extends across test housing, the first ultrasonic transducer and the second ultrasonic transducer correspondence respectively as far as possible and is sticked on two walls.When being installed on beam tube by this monitoring modular, test housing also can be formed by on-the-spot beam tube transformation, such as, a part for on-the-spot beam tube can be transformed into straight pipe shape as shown in Figure 1.
nullJam detection control module includes cpu control circuit、Drive circuit、Signal conditioning circuit、Control switching circuit and prompt alarm circuit，Wherein the first ultrasonic transducer and the second ultrasonic transducer are all connected to drive circuit and signal conditioning circuit by control switching circuit，Drive circuit is by cpu control circuit control，The outfan of signal conditioning circuit is connected with cpu control circuit，The outfan of cpu control circuit controls to connect prompt alarm circuit，Control switching circuit makes drive circuit and signal conditioning circuit circulation be connected with the first ultrasonic transducer and the second ultrasonic transducer，Control the signal transmission and reception processing of the first ultrasonic transducer and the second ultrasonic transducer，The outfan of signal conditioning circuit is connected with cpu control circuit，Cpu control circuit carries out judgment of clogging according to collecting ultrasonic signal.
As a example by the ultrasonic flow monitoring modular using straight tube, the work process of colliery of the present utility model beam tube jam detection equipment is illustrated below.During this colliery beam tube jam detection device context, as in figure 2 it is shown, the straight tube in ultrasonic flow monitoring modular is located on the beam tube of colliery to be measured, i.e. it is connected on beam tube to be measured by the two of straight tube openings, the gas flow direction in test housing is from left to right, and concrete detection process is as follows:
1. measure the propagation time of following current, now the first ultrasonic transducer is for launching ultrasonic transducer, second ultrasonic transducer is for receiving ultrasonic transducer, control switching circuit selects to receive the signal of the second ultrasonic transducer, shield the signal of the first ultrasonic transducer simultaneously, cpu control circuit controls drive circuit and drives the first ultrasonic transducer to launch ultrasonic signal, the ultrasonic signal launched arrives the second ultrasonic transducer of its wall through test housing, second ultrasonic transducer will receive ultrasound signal transmission signal conditioning circuit, and it is sent to cpu control circuit by signal conditioning circuit, cpu control circuit calculates the ultrasound wave following current time at test housing according to the signal received.
2. by switching the first ultrasonic transducer and the state of the second ultrasonic transducer, i.e. allow the first ultrasound wave inverter as receiving ultrasound wave inverter, second ultrasonic transducer, as launching ultrasonic transducer, repeats the process of step 1, can measure the propagation time of ultrasound wave adverse current.
3.CPU control circuit calculates following current time and the time difference of adverse current time, the gas flow rate that obtains according to the direct matching of relation of gas flow rate Yu time difference.
Stopping state in beam tube is judged by 4.CPU control circuit according to flow velocity size, provides information when beam tube exists blocking but not exclusively blocks, provides warning message when beam tube is completely plugged.In the present embodiment, flow-speed measurement lower limit is 0.15m/s, i.e. when the flow velocity of gas is more than flow-speed measurement lower limit, illustrate that beam tube is normal, when the flow velocity of gas is less than flow-speed measurement lower limit, illustrate that beam tube blocks, now, cpu control circuit controls instruction warning circuit work, to remind associative operation personnel.
Cpu control circuit both can judge blocking according to flow velocity, it is also possible to is blocked by flow monitoring beam tube.Detection process based on flow is as follows: when equipment runs first, the initial flow Q in record beam tube0, and Q0As Flow datum；2) flow in beam tube is continuously monitored, and to measured discharge Q and Flow datum Q0Compare in real time, as the measured discharge (Q in beam tube0-Q)/Q0< 30% and continue 30min (time can set) time think that beam tube slightly blocks, provide information；As the measured discharge 30% < (Q in beam tube0-Q)/Q0< 60% and continue 30min (time can set) time think that beam tube moderate blocks, provide information；As the measured discharge 60% < (Q in beam tube0-Q)/Q0< 90% and continue to think beam tube Severe blockage during 30min (time can set), provide information；As the measured discharge (Q in beam tube0-Q)/Q0> 95% and continue 30min (time can set) time think that beam tube is completely plugged, provide warning message.
The embodiment of this utility model ultrasonic flow monitoring modular
nullUltrasonic flow monitoring modular in the present embodiment is as shown in Figure 1，Including the test housing 1 for wearing test pipeline，It is relatively set with the first ultrasonic transducer 2 and the second ultrasonic transducer 3 for measuring rate of flow of fluid on test housing，Test housing 1 is between the first ultrasonic transducer and the second ultrasonic transducer，Test housing 1 includes two walls 4 passed for ultrasound wave，Two walls all with horizontal plane or vertical，When this monitoring modular is installed on beam tube，Owing to two walls of test housing exist certain angle with level，So that two walls of test housing are when there being condensation vapor，The steam condensed can drop to test in housing，Avoid two walls and affect the ultrasonic signal effect through test shell wall side of ultrasonic transducer due to condensation vapor，Improve monitoring accuracy.
Wherein test housing can use the form of straight tube, two walls are each perpendicular to straight tube, as shown in Figure 1, when this ultrasonic flow monitoring modular is connected on beam tube to be measured, ultrasonic transducer end face and horizontal plane, can effectively prevent condensation vapor from affecting normal work, in the present embodiment, the end face distance of 2 ultrasonic transducers is 8cm.The air inlet 5 for connecting beam tube to be measured and gas outlet 6 is offered on test housing 1, in order to improve measuring accuracy, making ultrasound wave pass more gas, the present embodiment is arranged being used for wearing the air inlet 5 of beam tube 7 to be measured and gas outlet 6 near test two walls 4 of housing.Ultrasonic signal in order to make ultrasonic transducer launch completely extends across test housing, the first ultrasonic transducer and the second ultrasonic transducer correspondence respectively as far as possible and is sticked on two walls.When being installed on beam tube by this monitoring modular, test housing also can be formed by on-the-spot beam tube transformation, such as, a part for on-the-spot beam tube can be transformed into straight pipe shape as shown in Figure 1.The operation principle of this monitoring modular had been described in detail in last embodiment, repeated no more here.
Claims (10)
1. colliery based on a ultrasound wave beam tube jam detection equipment, it is characterized in that, this jam detection equipment includes ultrasonic flow monitoring modular and jam detection control module, described ultrasonic flow monitoring modular includes the test housing for wearing test pipeline, the first ultrasonic transducer for measuring rate of flow of fluid and the second ultrasonic transducer it is relatively set with on described test housing, described test housing is between the first ultrasonic transducer and the second ultrasonic transducer, described test housing includes two walls passed for ultrasound wave, two described walls all with horizontal plane or vertical.
Colliery based on ultrasound wave the most according to claim 1 beam tube jam detection equipment, it is characterised in that described test housing is a straight tube, and two described walls are each perpendicular to straight tube.
Colliery based on ultrasound wave the most according to claim 2 beam tube jam detection equipment, it is characterised in that the first described ultrasonic transducer and the second ultrasonic transducer correspondence respectively are sticked on two walls.
4. according to colliery based on the ultrasound wave beam tube jam detection equipment according to any one of claim 1-3, it is characterised in that two openings being used for wearing test pipeline on described test shell are arranged respectively close to corresponding wall.
Colliery based on ultrasound wave the most according to claim 4 beam tube jam detection equipment, it is characterized in that, described jam detection control module includes cpu control circuit, drive circuit, signal conditioning circuit and control switching circuit, described first ultrasonic transducer and the second ultrasonic transducer are all connected to drive circuit and signal conditioning circuit by control switching circuit, described control switching circuit is for controlling the switching of drive circuit and signal conditioning circuit, drive circuit and signal conditioning circuit circulation is made to be connected with the first ultrasonic transducer and the second ultrasonic transducer, control the signal transmission and reception processing of the first ultrasonic transducer and the second ultrasonic transducer, the outfan of signal conditioning circuit is connected with cpu control circuit, cpu control circuit carries out judgment of clogging according to collecting ultrasonic signal.
Colliery based on ultrasound wave the most according to claim 5 beam tube jam detection equipment, it is characterized in that, described jam detection control module also includes indicating warning circuit, this instruction warning circuit is connected with cpu control circuit, for detecting that pipeline occurs that blocking indicates or reports to the police at cpu control circuit.
7. a ultrasonic flow monitoring modular, it is characterized in that, including the test housing for wearing test pipeline, the first ultrasonic transducer for measuring rate of flow of fluid and the second ultrasonic transducer it is relatively set with on described test housing, described test housing is between the first ultrasonic transducer and the second ultrasonic transducer, described test housing includes two walls passed for ultrasound wave, two described walls all with horizontal plane or vertical.
Ultrasonic flow monitoring modular the most according to claim 7, it is characterised in that described test housing is a straight tube, two described walls are each perpendicular to straight tube.
Ultrasonic flow monitoring modular the most according to claim 8, it is characterised in that the first described ultrasonic transducer and the second ultrasonic transducer correspondence respectively are sticked on two walls.
10. according to the ultrasonic flow monitoring modular according to any one of claim 7-9, it is characterised in that two openings being used for wearing test pipeline on described test shell are arranged respectively close to corresponding wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128505.2U CN205449181U (en) | 2015-12-31 | 2015-12-31 | Colliery beam tube blocking detection equipment and flow monitoring module based on ultrasonic wave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521128505.2U CN205449181U (en) | 2015-12-31 | 2015-12-31 | Colliery beam tube blocking detection equipment and flow monitoring module based on ultrasonic wave |
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| CN205449181U true CN205449181U (en) | 2016-08-10 |
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| CN201521128505.2U Active CN205449181U (en) | 2015-12-31 | 2015-12-31 | Colliery beam tube blocking detection equipment and flow monitoring module based on ultrasonic wave |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442721A (en) * | 2016-08-29 | 2017-02-22 | 山东胜伟园林科技有限公司 | Filter material wave tube obstruction positioning apparatus and positioning method |
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- 2015-12-31 CN CN201521128505.2U patent/CN205449181U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442721A (en) * | 2016-08-29 | 2017-02-22 | 山东胜伟园林科技有限公司 | Filter material wave tube obstruction positioning apparatus and positioning method |
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Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: Power Polytron Technologies Inc Address before: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: Zhengzhou GL Tech Company |