CN107965679A - A kind of metallurgical industry conduit running status monitoring and positioner - Google Patents
A kind of metallurgical industry conduit running status monitoring and positioner Download PDFInfo
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- CN107965679A CN107965679A CN201711071032.0A CN201711071032A CN107965679A CN 107965679 A CN107965679 A CN 107965679A CN 201711071032 A CN201711071032 A CN 201711071032A CN 107965679 A CN107965679 A CN 107965679A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000003750 conditioning effect Effects 0.000 claims abstract description 14
- 238000003745 diagnosis Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000004458 analytical method Methods 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004807 localization Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Abstract
The present invention relates to a kind of metallurgical industry conduit running status monitoring and positioner, belong to pipe transportation technology field.The present invention includes signal acquisition module, signal processing module, diagnosis and warning module.Pressure sensor in signal acquisition module, flow sensor, the input terminal of temperature sensor and data collector connects, the input terminal connection of the data conditioning unit of data collector output terminal and signal processing module, data conditioning unit is connected with single chip control unit, GPS time service devices carry out time synchronization by serial ports asynchronous communication to single chip control unit, single chip control unit is connected by RS232 ports with GPRS communication units, GPRS communication units are communicated by wireless network and Industrial PC Computer, Industrial PC Computer does signal analysis after receiving fault-signal, positioning and early warning, as faulty, alarm is triggered, display shows abort situation at the same time.
Description
Technical field
The present invention relates to a kind of metallurgical industry conduit running status monitoring and positioner, belongs to pipe transportation technology neck
Domain.
Background technology
Pipeline prevailing traffic mineral fluid in metallurgical industry, such as ore pulp, coal slurry slurry.However, mine both domestic and external
It is in the dangerously steep place of physical features mostly.Pipeline transportation is pipeline transportation transport power than the outstanding advantage that highway, railway transportation possess
Greatly, small, pollution-free, highly effective and safe is lost, and has been carried out developing faster.With information-based and industrialized development, pipe
Road transport will be increasing in the effect that the fields such as metallurgy, the energy, machinery play.At the same time, the safe operation problem of pipeline
Also increasingly it is worth the concern of people.
Though the complicated landform in mine is suitable for pipeline transportation, due to the gradient and the camber design of pipeline, pipe material
Inherent shortcoming, slurry chemistry corrodes and with particle aggressiveness, landslide and Geological Hazards of debris, slurry flow velocity do not reach critical siltation
The factors such as the blocking that flow velocity produces all can further induce the operation exception of pipeline.Under normal circumstances, the operation exception of pipeline is not
But difficulty is brought to maintenance, but also problem of environmental pollution can be brought, production halt production even safe thing will be also caused when serious
Therefore.But during actual pipeline inspection, most of pumping plant staff still relies on sense organ to different caused by conduit running
Ring and out of order anticipation is done in vibration.Failure anticipation accuracy rate is extremely low, it is impossible to it is accurately positioned, it is time-consuming and laborious.Therefore, to pipeline
Operating status be monitored, while abnormality (leakage failure) position is accurately positioned, there is very big economy
Meaning and realistic meaning.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of metallurgical industry conduit running status monitoring and positioner, with
For solving the problems, such as the monitoring running state and fault-location problem of existing pipeline.
The technical scheme is that：A kind of metallurgical industry conduit running status monitoring and positioner, including signal are adopted
Collect module 1, signal processing module 2, diagnosis and warning module 3, pressure sensor I 41, pressure sensor II 42, flow sensor
5th, temperature sensor 6, data collector 7, data conditioning unit 8, GPS time service devices 9, single chip control unit 10, GPRS lead to
Interrogate unit 11, wireless network 12, Industrial PC Computer 13, alarm 14, display 15；
Pressure sensor I 41 in signal acquisition module 1, pressure sensor II 42, flow sensor 5, temperature sensor 6 with
The input terminal connection of data collector 7, the input of 7 output terminal of data collector and the data conditioning unit 8 of signal processing module 2
End connection, data conditioning unit 8 are connected with single chip control unit 10, and GPS time service devices 9 are by serial ports asynchronous communication to monolithic
Machine control unit 10 carries out time synchronization, and single chip control unit 10 is connected by RS232 ports with GPRS communication units 11,
GPRS communication units 11 are communicated by wireless network 12 and Industrial PC Computer 13, and Industrial PC Computer 13 does signal point after receiving fault-signal
Analysis, positioning and early warning, failure then triggers alarm 14 when occurring, while display 15 shows abort situation.
The signal acquisition module 1 is respectively installed pressure sensor I 41, pressure sensor II 42, flow in pipeline both sides and is passed
Sensor 5 and temperature sensor 6, wherein pressure sensor I 41 are apart from pumping plant 30-60m, pressure sensor I 41 and pressure sensor
II 42 distances are that 20-30m, flow sensor 5 and temperature sensor 6 and pressure sensor II 42 are co-located, under pipeline
It is identical with this to swim sensor installation.
The data acquisition end 7 can use the USB-6366 data collectors of NI companies.
The data conditioning unit 8 is made of low-pass filter, signal amplifier, A/D converter, is specially active second order
The ADS1256 high-performance A/D converters of Butterworth LPF, LT1028 noiselike signals amplifier and 24,8 passages.
The GPS time service devices 9 use GPS25-LVSOEM plates.
The single chip control unit 10 can use STM32 single-chip minimum systems；Industrial PC Computer 13 can use IBM-PC
Machine.
The alarm 14 is the high-power audible-visual annunciators of TGSG-08, and carries wireless signal receiver.
The present invention operation principle be：When pipeline is in slurry body there occurs exception (leakage failure), in fault point
Transient pressure bust can be produced, since fluid flowing has continuity in closed conduit, fluid flow rate will not dash forward
Become, but trouble point and adjacent channel region be there are pressure differential, cause ore pulp fluid from pipe leakage point upstream and downstream toward leakage failure
Point filling, so as to cause the density of the fluid near leakage point and pressure to reduce, result in suction wave.Suction wave passes in the duct
Pass decay it is minimum, propagation distance is longer.Therefore at pumping plant both ends, installation pressure sensor detects suction wave transmission speed and time,
Coarse localization can be carried out to trouble point.But the time difference of suction wave arrival pressure sensor, wave transmission speed, sensor
The positioning accuracy of the factors affect trouble points such as mounting distance, pipe material, complicated slurry environment.Therefore at both ends with two
Pressure sensor, carries out efficient diagnosis to pipe leakage failure with reference to flow sensor 5, temperature sensor 6 and is accurately positioned.When
Data collector 7 collects ore pulp pressure, flow, temperature signal, be inputted data conditioning unit 8 be filtered, amplify, A/
D is changed, and GPS time service devices 9 carry out single chip control unit 10 in time synchronization, the letter after 10 synchronization of single chip control unit
Number it is wirelessly transmitted to Industrial PC Computer 13 through GPRS communication units 11, Industrial PC Computer is on the one hand by the pressure collected, flow, temperature
Signal is shown as real-time curve on a display 15, and on the one hand failure is diagnosed and is accurately positioned.Fault diagnosis commonly uses stream
Detection method is measured, i.e. entrance input quantity is equal to pipe outlet output quantity, but influence and the flow of the compressibility, temperature of fluid
The factors such as sensor error can cause failure to be judged by accident, and pumping plant personnel's tune valve, pressurized operation can cause flow measurement shoutage to change,
Pipe leakage fault detect can be caused frequently to report an error.Therefore, the present invention takes flow detection method combination pressure ripple detection method to carry out
Pipe leakage fault diagnosis, can increase substantially the accuracy of device alarm.And for negative pressure wave method, both it had been used to leak event
Barrier diagnosis is again for revealing localization of fault.When negative pressure wave is delivered to four pressure sensors of first and last, pressure sensing is caused
Device sampled value declines, and writes down the trailing edge moment, at this time according to sampled value and the change difference of normal pressure value, it is diagnosable go out pipeline
The 15 real-time display warning information of display of failure, at this time Industrial PC Computer 13 is revealed, while sends instructions to alarm 14 and carries out
Early warning.At the same time according to pressure wave to both ends time difference and wave transmission speed, it is possible to positioned.But transported in actual pipeline
In the case of row, celerity of pressure wave is related with many factors, and wherein slurry temperature has a great influence it, therefore gathers real-time ore deposit
Slurry temperature degree is modified wave transmission speed, can be so that pipe leakage localization of fault is more accurate.
The beneficial effects of the invention are as follows：The pressure that is collected by signal acquisition module, flow, temperature signal, and it is right
Signal does respective handling and analysis, and pipe leakage fault message can be fed back to pumping plant, and can display real-time and early warning.This dress
It is few to put hardware device, simple and practicable, reliable and stable work.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the practical set figure of the present invention；
Fig. 3 is the pipeline fault positioning schematic diagram of the present invention.
In figure：1- signal acquisition modules, 2- signal processing modules, 3- diagnosis and warning module, 41- pressure sensors I,
42-
Pressure sensor II, 5- flow sensors, 6- temperature sensors, 7- data collectors, 8- data conditioning units, 9-
GPS time service devices, 10- single chip control units, 11-GPRS communication units, 12- wireless networks, 13- Industrial PC Computers, 14-
Alarm, 15- displays.
Embodiment
With reference to the accompanying drawings and detailed description, the invention will be further described.
Embodiment 1：As shown in Figure 1, a kind of metallurgical industry conduit running status monitoring and positioner, including signal acquisition
Module 1, signal processing module 2, diagnosis and warning module 3, pressure sensor I 41, pressure sensor II 42, flow sensor 5,
Temperature sensor 6, data collector 7, data conditioning unit 8, GPS time service devices 9, single chip control unit 10, GPRS communications
Unit 11, wireless network 12, Industrial PC Computer 13, alarm 14, display 15；
Pressure sensor 4, flow sensor 5, temperature sensor 6 and data collector 7 in the signal acquisition module 1
Input terminal connects, and 7 output terminal of data collector is connected with the input terminal of the data conditioning unit 8 of signal processing module 2, data tune
Reason unit 8 is connected with single chip control unit 10, and GPS time service devices 9 are by serial ports asynchronous communication to single chip control unit 10
Time synchronization is carried out, single chip control unit 10 is connected by RS232 ports with GPRS communication units 11, GPRS communication units 11
Being communicated by wireless network 12 and Industrial PC Computer 13, Industrial PC Computer 13 does signal analysis, positioning and early warning after receiving fault-signal,
Alarm 14 is triggered if faulty occur, while display 15 shows abort situation.
Embodiment 2：As shown in Figure 2：Under actual working conditions, the metallurgical industry conduit running status monitoring and fixed
Position device is generally more than one, and sensor is respectively arranged in the pipe ends that may be broken down, if pipeline is long between pumping plant,
Some set diagnostic devices can be installed, both ends are away from pumping plant 30-60m
The signal acquisition module 1 is respectively installed pressure sensor I 41, pressure sensor II 42, flow in pipeline both sides and is passed
Sensor 5 and temperature sensor 6, wherein pressure sensor I 41 are apart from pumping plant 30-60m, pressure sensor I 41 and pressure sensor
II 42 distances are that 20-30m, flow sensor 5 and temperature sensor 6 and pressure sensor II 42 are co-located, under pipeline
It is identical with this to swim sensor installation.
The data conditioning unit 8 is made of low-pass filter, signal amplifier, A/D converter, is specially active second order
The ADS1256 high-performance A/D converters of Butterworth LPF, LT1028 noiselike signals amplifier and 24,8 passages.
The data acquisition end 3 uses the USB-6366 data collectors of NI companies.
The GPS time service devices 9 use GPS25-LVSOEM plates.
The present invention be in abnormal operating condition for metallurgical industry pipeline --- and the mode taken of positioning for revealing failure is
The method that multisensor pressure wave detection method combination temperature corrects pressure velocity of wave.Conventional time difference line location technology is by direct
Time difference information before the two neighboring sensor of collection leakage failure signal arrival and the propagation according to pressure wave in the duct
Speed and be calculated.Since pipe material, slurry density and coefficient of elasticity, pipe thickness, temperature etc. all influence pressure wave
Transmission speed, therefore ignore the influence of temperature by conventional pressure ripple computational methods merely, obtained pipe leakage trouble point
There are large error for positioning.The method that pressure velocity of wave is corrected using multisensor pressure wave detection method combination temperature, can be more smart
True locating leaks in pipes trouble point.First by multisensor pressure wave detection method, as shown in figure 3, sensors A and sensor B
For one group, the position of the nearly pumping plant of pipeline head end is installed on, sensor C and sensor D is installed on the nearly pumping plant of pipe end for one group
Position.Sensor B, C distance are L0, sensors A, B distances are L1, sensor C, D distance are L2, required sensor B to event
Barrier point distance is L3.The time that trouble point signal travels to sensors A-D is respectively t1,t2,t3,t4.Negative pressure velocity of wave propagation is
V, then relation is as follows：
L1=(t1-t2)×v (1)
L2=(t4-t3)×v (2)
L3=t2×v (3)
(t1-t3) × v=L1+L3-(L0-L3) (4)
(t1-t4) × v=L1+L3-(L0-L3+L2) (5)
(t2-t3) × v=L3-(L0-L3) (6)
(t2-t4) × v=L3-(L0-L3+L2) (7)
In said system, L0,L1,L2With t1,t2,t3,t4It is known, negative pressure wave can obtain according to formula (1) and (2)
Spread speed in pipe-line system, because negative pressure wave speed is three orders of magnitude of ore pulp speed, therefore ignores flow rate of pulp
Influence.Negative pressure wave speed is substantially at this time：
It is to set celerity of pressure wave in pipeline medium to propose as the premise of definite value above, and actual metallurgical industry pipe
It is also related to the factor such as pipe thickness, pipe material, tube wall elasticity, pulp density that negative pressure wave is produced in road, and pipeline entoplasm
Body friction, coarse granule shock can cause temperature to raise, and elasticity of fluid COEFFICIENT K and density become with fluid temperature variations
Change, can influence negative pressure wave spread speed, therefore it is as follows to rewrite suction wave formula：
In formula：
K:Fluid volume coefficient of elasticity, Pa；ρ:Fluid density, km/m3；E:The elasticity of tubing, Pa；D:The diameter of pipeline,
m；e:Pipe thickness, m；C1：Correction factor；t:Temperature, DEG C
Industrial PC Computer receive real time temperature data, real-time negative pressure wave flow velocity is obtained according to model, further according to above formula (4)~
(7), can obtain：
The v=0.5v in above formula1+0.5v2, preferably pressure-wave velocity is obtained using weight equal value method.
From above formula, sensor B to leakage point distance L3Use in the calculation 4 times, be averagely worth to and let out by 4 times
The position of leak source, it is more accurate compared with conventional method, and negative pressure wave spread speed is corrected by temperature, Industrial PC Computer is real-time
Dynamic analysis pressure wave flow velocity so that leakage fault location is more accurate.
The embodiment of the present invention is explained in detail above in association with attached drawing, but the present invention is not limited to above-mentioned
Embodiment, within the knowledge of a person skilled in the art, can also be before present inventive concept not be departed from
Put that various changes can be made.
Claims (4)
1. a kind of metallurgical industry conduit running status monitoring and positioner, it is characterised in that：Including signal acquisition module (1),
Signal processing module (2), diagnosis and warning module (3), pressure sensor I (41), pressure sensor II (42), flow sensor
(5), temperature sensor (6), data collector (7), data conditioning unit (8), GPS time service devices (9), single chip control unit
(10), GPRS communication units (11), wireless network (12), Industrial PC Computer (13), alarm (14), display (15)；
Pressure sensor I (41), pressure sensor II (42), flow sensor (5), temperature sensing in signal acquisition module (1)
Device (6) is connected with the input terminal of data collector (7), the data tune of data collector (7) output terminal and signal processing module (2)
The input terminal connection of unit (8) is managed, data conditioning unit (8) is connected with single chip control unit (10), GPS time service devices (9)
Time synchronization is carried out to single chip control unit (10) by serial ports asynchronous communication, single chip control unit (10) passes through RS232
Port is connected with GPRS communication units (11), and GPRS communication units (11) are logical by wireless network (12) and Industrial PC Computer (13)
News, Industrial PC Computer (13) do signal analysis, positioning and early warning after receiving fault-signal, and failure then triggers alarm when occurring
(14), while display (15) shows abort situation.
2. metallurgical industry conduit running status monitoring according to claim 1 and positioner, it is characterised in that：The letter
Number acquisition module (1) respectively installed in pipeline both sides pressure sensor I (41), pressure sensor II (42), flow sensor (5) and
Temperature sensor (6), wherein pressure sensor I (41) are apart from pumping plant 30-60m, pressure sensor I (41) and pressure sensor II
(42) distance is that 20-30m, flow sensor (5) and temperature sensor (6) and pressure sensor II (42) are co-located.
3. metallurgical industry conduit running status monitoring according to claim 1 and positioner, it is characterised in that：The number
It is made of according to conditioning unit (8) low-pass filter, signal amplifier, A/D converter, is specially active second order Butterworth low pass
The ADS1256 high-performance A/D converters of wave filter, LT1028 noiselike signals amplifier and 24,8 passages.
4. metallurgical industry conduit running status monitoring according to claim 1 and positioner, it is characterised in that：It is described
GPS time service devices (9) use GPS25-LVSOEM plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071032.0A CN107965679A (en) | 2017-11-03 | 2017-11-03 | A kind of metallurgical industry conduit running status monitoring and positioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071032.0A CN107965679A (en) | 2017-11-03 | 2017-11-03 | A kind of metallurgical industry conduit running status monitoring and positioner |
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| Publication Number | Publication Date |
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| CN107965679A true CN107965679A (en) | 2018-04-27 |
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| CN201711071032.0A Pending CN107965679A (en) | 2017-11-03 | 2017-11-03 | A kind of metallurgical industry conduit running status monitoring and positioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282342A (en) * | 2019-06-11 | 2019-09-27 | 重庆交通大学 | Pipeline-belt feeder-water transport integration mineral are bypassed the dam site movement system |
| CN112728423A (en) * | 2020-12-29 | 2021-04-30 | 吉林同鑫热力集团股份有限公司 | Remote heat supply pipeline fault monitoring system |
| CN114811443A (en) * | 2021-01-22 | 2022-07-29 | 北京科益虹源光电技术有限公司 | Waterway state monitoring system |
| CN115278399A (en) * | 2022-07-13 | 2022-11-01 | 昆明理工大学 | Copper molten pool smelting field wireless control system and design method |
| CN115993798A (en) * | 2023-03-23 | 2023-04-21 | 煤炭科学技术研究院有限公司 | Gas drainage monitoring device and control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282342A (en) * | 2019-06-11 | 2019-09-27 | 重庆交通大学 | Pipeline-belt feeder-water transport integration mineral are bypassed the dam site movement system |
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| CN114811443A (en) * | 2021-01-22 | 2022-07-29 | 北京科益虹源光电技术有限公司 | Waterway state monitoring system |
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| CN115278399A (en) * | 2022-07-13 | 2022-11-01 | 昆明理工大学 | Copper molten pool smelting field wireless control system and design method |
| CN115993798A (en) * | 2023-03-23 | 2023-04-21 | 煤炭科学技术研究院有限公司 | Gas drainage monitoring device and control method thereof |
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Application publication date: 20180427 |