CN113673180A - Method for quickly calculating leakage position of paste filling long-distance horizontal conveying pipeline - Google Patents
Method for quickly calculating leakage position of paste filling long-distance horizontal conveying pipeline Download PDFInfo
- Publication number
- CN113673180A CN113673180A CN202110915552.5A CN202110915552A CN113673180A CN 113673180 A CN113673180 A CN 113673180A CN 202110915552 A CN202110915552 A CN 202110915552A CN 113673180 A CN113673180 A CN 113673180A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- paste
- leakage position
- resistance loss
- horizontal conveying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/14—Pipes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
Abstract
The invention provides a method for quickly calculating a leakage position of a paste filling long-distance horizontal conveying pipeline, and belongs to the technical field of mine filling. The method comprises the steps of firstly installing a pressure gauge and a flowmeter on a horizontal pipeline, then establishing a correction coefficient model of pipeline resistance loss based on monitoring data during normal filling, further establishing a resistance loss calculation model, then deducing a calculation model of a pipeline leakage position, and finally quickly calculating the pipeline leakage position based on monitoring data of the pressure gauge and the flowmeter during pipeline leakage. The method can realize the quick and accurate calculation of the leakage position of the pipeline, is convenient for pipeline maintenance, can reduce the pipe inspection personnel in the paste filling work, and reduces the filling operation cost.
Description
Technical Field
The invention relates to the technical field of mine filling, in particular to a method for quickly calculating a leakage position of a paste filling long-distance horizontal conveying pipeline.
Background
In recent years, paste filling has become an important way for green mine construction, and has been widely applied to a plurality of mines at home and abroad. However, the horizontal pipeline is easy to wear and damage along with long-time operation of filling, and further pipeline leakage is easy to occur, if the pipeline leakage is not found in time, paste slurry can flow into a roadway in a large amount, and production is seriously affected. Therefore, the method for quickly calculating the leakage position of the paste filling long-distance horizontal conveying pipeline is particularly necessary, the leakage position of the long-distance horizontal conveying pipeline is quickly and accurately calculated, the pipeline is convenient to maintain and replace, pipe inspection personnel in paste filling work can be reduced, and filling operation cost is reduced.
Disclosure of Invention
The invention aims to provide a method for quickly calculating the leakage position of a paste filling long-distance horizontal conveying pipeline.
The method comprises the following steps:
s1: installing a pressure gauge and a flowmeter at both ends of the long-distance horizontal conveying pipeline;
s2: calculating a flow-based drag loss correction factor;
s3: establishing a resistance loss calculation model;
s4: building a calculation model of the leakage position of the pipeline;
s5: when the pipeline leaks, the leakage position of the pipeline is quickly calculated according to the monitored flow and pressure data, the diameter and the length of the pipeline, the yield stress and the viscosity of the paste body and the calculated correction coefficient.
Wherein, S2 specifically includes:
the flow during normal filling is adjusted, the resistance loss in the pipeline is monitored, and then the resistance loss is compared with the resistance loss obtained by applying the platinum Han formula, and the resistance loss correction coefficient based on the flow is calculated:
wherein, k (Q)0) Is a correction factor; piAnd PeThe pressures at the inlet and outlet of the pipeline during normal filling respectively; tau is0Eta is yield stress and viscosity of the paste, D and L are diameter and length of the pipeline, Q0The flow rate of the paste is shown.
The resistance loss in S3 is the difference between the pressures at the inlet and outlet of the horizontal conveying pipe, i.e. the resistance loss is P1-P2Wherein P is1And P2The pressure at the inlet and outlet of the pipeline is actually monitored; the resistance loss calculation model is then:
wherein, k (Q)0) Is a correction factor; tau is0Eta is yield stress and viscosity of the paste, D and L are diameter and length of the pipeline, Q0The flow rate of the paste is shown.
The S4 specifically comprises the following steps:
assume distance L from the entrance on a horizontal pipe1Where leakage occurs, at which point the pressure and flow at the inlet are respectively P1' and Q1Pressure and flow at the outlet are respectively P2' and Q2Assuming a pressure P at the leak point of the pipeline3Then, there are:
the resistance loss at the inlet to the leak is:
the loss of resistance from the leak to the outlet is:
the inlet-to-outlet drag loss is then:
obtaining the leakage position L of the pipeline1And P1'、Q1、P2'、Q2The relationship of (1) is:
i.e. a calculation model of the location of the pipeline leak, where k (Q)0) Is a correction factor; tau is0And eta are the yield stress and viscosity of the paste respectively, and D and L are the diameter and length of the pipeline respectively.
The technical scheme of the invention has the following beneficial effects:
in the scheme, a resistance loss correction coefficient model based on the flow is established by utilizing the flow and the resistance loss monitored during normal filling, and a pipeline conveying resistance loss calculation model conforming to the mine reality is further established, so that the resistance loss calculation precision is higher; by applying the method, the leakage position of the long-distance horizontal conveying pipeline can be quickly and accurately calculated, the pipeline is convenient to maintain and replace, the number of pipe inspection personnel in paste filling work can be reduced, and the filling operation cost is reduced. Based on the invention, the method has important values for realizing accurate control of paste filling and realizing the few or even no people in filling operation. Is suitable for mine enterprises of metal, nonmetal and the like.
Drawings
FIG. 1 is a flow chart of a method for rapidly calculating the leakage position of a paste filling long-distance horizontal conveying pipeline according to the invention;
fig. 2 is a schematic view of the installation positions of a pressure gauge and a flowmeter of a long-distance horizontal pipeline in the method for rapidly calculating the leakage position of the paste filling long-distance horizontal conveying pipeline.
Wherein: 1-horizontal pipeline inlet, 2-horizontal pipeline outlet, 3-leakage position, 4-pressure gauge I, 5-flow meter I, 6-flow meter II and 7-pressure gauge II.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a method for quickly calculating the leakage position of a paste filling long-distance horizontal conveying pipeline.
As shown in fig. 1, the method comprises the steps of:
s1: installing a pressure gauge and a flowmeter at both ends of the long-distance horizontal conveying pipeline;
s2: calculating a flow-based drag loss correction factor;
s3: establishing a resistance loss calculation model;
s4: building a calculation model of the leakage position of the pipeline;
s5: when the pipeline leaks, the leakage position of the pipeline is quickly calculated according to the monitored flow and pressure data, the diameter and the length of the pipeline, the yield stress and the viscosity of the paste body and the calculated correction coefficient.
Wherein, S2 specifically includes:
the flow during normal filling is adjusted, the resistance loss in the pipeline is monitored, and then the resistance loss is compared with the resistance loss obtained by applying the platinum Han formula, and the resistance loss correction coefficient based on the flow is calculated:
wherein, k (Q)0) Is a correction factor; piAnd PeThe pressures at the inlet and outlet of the pipeline during normal filling respectively; tau is0Eta is yield stress and viscosity of the paste, D and L are diameter and length of the pipeline, Q0The flow rate of the paste is shown.
The resistance loss in S3 is the difference between the pressures at the inlet and outlet of the horizontal conveying pipe, i.e. the resistance loss is P1-P2Wherein P is1And P2The pressure at the inlet and outlet of the pipeline is actually monitored; the resistance loss calculation model is then:
wherein, k (Q)0) Is a correction factor; tau is0Eta is yield stress and viscosity of the paste, D and L are diameter and length of the pipeline, Q0The flow rate of the paste is shown.
The S4 specifically comprises the following steps:
assume distance L from the entrance on a horizontal pipe1Where leakage occurs, at which point the pressure and flow at the inlet are respectively P1' and Q1Pressure and flow at the outlet are respectively P2' and Q2Assuming a pressure P at the leak point of the pipeline3Then, there are:
the resistance loss at the inlet to the leak is:
the loss of resistance from the leak to the outlet is:
the inlet-to-outlet drag loss is then:
obtaining the leakage position L of the pipeline1And P1'、Q1、P2'、Q2The relationship of (1) is:
i.e. a calculation model of the location of the pipeline leak, where k (Q)0) Is a correction factor; tau is0And eta are the yield stress and viscosity of the paste respectively, and D and L are the diameter and length of the pipeline respectively.
The following description is given with reference to specific examples.
Aiming at a paste filling horizontal pipeline of a certain copper ore, a first pressure gauge 4 and a first flowmeter 5 are installed at an inlet 1 of the horizontal pipeline, a second pressure gauge 7 and a second flowmeter 6 are installed at an outlet 2 of the horizontal pipeline, and the yield stress tau of the paste in the pipeline0A designed filling flow rate Q of 194.84Pa, a viscosity eta of 0.3246 pas0Is 90m3H, the length L of the horizontal pipeline is 1394m, the pipe diameter D is 178mm, and Q is adjusted0In the range of 60 to 100m3Fluctuating in the range of/h to obtain a resistance loss correction coefficient model based on the flow:
therefore, the resistance loss calculation model:
when a certain pipe leaks, P1' is 8.66MPa, Q1Is 90m3/h、P2' 0.74MPa, Q2Is 75m3H, calculating the leakage position L of the pipeline1626.74m, the distance of the leak point position 3 from the inlet of the horizontal duct is 626.74 m.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. A method for quickly calculating the leakage position of a paste filling long-distance horizontal conveying pipeline is characterized by comprising the following steps of: the method comprises the following steps:
s1: installing a pressure gauge and a flowmeter at both ends of the long-distance horizontal conveying pipeline;
s2: calculating a flow-based drag loss correction factor;
s3: establishing a resistance loss calculation model;
s4: building a calculation model of the leakage position of the pipeline;
s5: when the pipeline leaks, the leakage position of the pipeline is quickly calculated according to the monitored flow and pressure data, the diameter and the length of the pipeline, the yield stress and the viscosity of the paste body and the calculated correction coefficient.
2. The method for rapidly calculating the leakage position of the paste filling long-distance horizontal conveying pipeline according to claim 1, wherein the method comprises the following steps: the step S2 specifically includes:
the flow during normal filling is adjusted, the resistance loss in the pipeline is monitored, and then the resistance loss is compared with the resistance loss obtained by applying the platinum Han formula, and the resistance loss correction coefficient based on the flow is calculated:
wherein, k (Q)0) Is a correction factor; piAnd PeThe pressures at the inlet and outlet of the pipeline during normal filling respectively; tau is0Eta is yield stress and viscosity of the paste, D and L are diameter and length of the pipeline, Q0The flow rate of the paste is shown.
3. The method for rapidly calculating the leakage position of the paste filling long-distance horizontal conveying pipeline according to claim 1, wherein the method comprises the following steps: the resistance loss in S3 is the pressure difference between the inlet and the outlet of the horizontal conveying pipe, i.e. the resistanceLoss of P1-P2Wherein P is1And P2The pressure at the inlet and outlet of the pipeline is actually monitored; the resistance loss calculation model is then:
wherein, k (Q)0) Is a correction factor; tau is0Eta is yield stress and viscosity of the paste, D and L are diameter and length of the pipeline, Q0The flow rate of the paste is shown.
4. The method for rapidly calculating the leakage position of the paste filling long-distance horizontal conveying pipeline according to claim 1, wherein the method comprises the following steps: the step S4 specifically includes:
assume distance L from the entrance on a horizontal pipe1Where leakage occurs, at which point the pressure and flow at the inlet are respectively P1' and Q1Pressure and flow at the outlet are respectively P2' and Q2Assuming a pressure P at the leak point of the pipeline3Then, there are:
the resistance loss at the inlet to the leak is:
the loss of resistance from the leak to the outlet is:
the inlet-to-outlet drag loss is then:
obtaining the leakage position L of the pipeline1And P1'、Q1、P2'、Q2The relationship of (1) is:
i.e. a calculation model of the location of the pipeline leak, where k (Q)0) Is a correction factor; tau is0And eta are the yield stress and viscosity of the paste respectively, and D and L are the diameter and length of the pipeline respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915552.5A CN113673180B (en) | 2021-08-10 | 2021-08-10 | Method for quickly calculating leakage position of paste filling long-distance horizontal conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110915552.5A CN113673180B (en) | 2021-08-10 | 2021-08-10 | Method for quickly calculating leakage position of paste filling long-distance horizontal conveying pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113673180A true CN113673180A (en) | 2021-11-19 |
| CN113673180B CN113673180B (en) | 2022-04-12 |
Family
ID=78542142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110915552.5A Active CN113673180B (en) | 2021-08-10 | 2021-08-10 | Method for quickly calculating leakage position of paste filling long-distance horizontal conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113673180B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117371336A (en) * | 2023-12-05 | 2024-01-09 | 昆明理工大学 | Paste yield stress prediction method and system based on deep learning |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110031423A1 (en) * | 2008-03-14 | 2011-02-10 | Zf Friedrichshafen Ag | Hydraulic control arrangement for controlling a variable fluid volume flow |
| CN102322291A (en) * | 2011-06-15 | 2012-01-18 | 金川集团有限公司 | Filling method for reducing onway resistance losses of paste-like slurry |
| CN103605822A (en) * | 2013-10-08 | 2014-02-26 | 交通运输部天津水运工程科学研究所 | Dynamic classification method of risk of liquid chemical pipeline leakage of petrochemical wharf |
| CN105135216A (en) * | 2015-07-30 | 2015-12-09 | 云南大红山管道有限公司 | Method for locating leakage position of ore pulp conveying pipe |
| CN106969263A (en) * | 2017-03-17 | 2017-07-21 | 山东科技大学 | Lotion ore slurry pipeline is along journey transporting resistance dynamic correcting method |
| CN107110151A (en) * | 2015-03-10 | 2017-08-29 | 桑德霍夫工程公司 | The induction system of the method for compensating leakage loss and the liquid for conveying ormal weight |
| CN108733923A (en) * | 2018-05-21 | 2018-11-02 | 湖南科技大学 | Goaf nitrogen based on minimal flow unit fills Calculation of pressure loss method |
| CN109101767A (en) * | 2018-09-20 | 2018-12-28 | 鞍钢集团矿业有限公司 | Paste body filling slurry pipeline drag losses calculation method based on T-H coupling |
| CN110685738A (en) * | 2019-11-20 | 2020-01-14 | 徐州中矿大贝克福尔科技股份有限公司 | Pressure relief device for monitoring pressure of paste filling pipeline and control method |
| WO2020088694A1 (en) * | 2019-01-15 | 2020-05-07 | 山东科技大学 | Quantified design method for coordination and deformation of gob-side entry retaining support system |
| CN111379588A (en) * | 2020-04-10 | 2020-07-07 | 昆明理工大学 | Mine filling slurry sedimentation segregation control system and method based on low-frequency pulse |
| CN112594002A (en) * | 2020-12-17 | 2021-04-02 | 中煤科工生态环境科技有限公司 | Large-multiple-line filling pipeline system for self-flowing delivery of high-concentration slurry |
| CN113029472A (en) * | 2021-03-09 | 2021-06-25 | 西安交通大学 | Pipe network leakage detection system and detection method |
-
2021
- 2021-08-10 CN CN202110915552.5A patent/CN113673180B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110031423A1 (en) * | 2008-03-14 | 2011-02-10 | Zf Friedrichshafen Ag | Hydraulic control arrangement for controlling a variable fluid volume flow |
| CN102322291A (en) * | 2011-06-15 | 2012-01-18 | 金川集团有限公司 | Filling method for reducing onway resistance losses of paste-like slurry |
| CN103605822A (en) * | 2013-10-08 | 2014-02-26 | 交通运输部天津水运工程科学研究所 | Dynamic classification method of risk of liquid chemical pipeline leakage of petrochemical wharf |
| CN107110151A (en) * | 2015-03-10 | 2017-08-29 | 桑德霍夫工程公司 | The induction system of the method for compensating leakage loss and the liquid for conveying ormal weight |
| CN105135216A (en) * | 2015-07-30 | 2015-12-09 | 云南大红山管道有限公司 | Method for locating leakage position of ore pulp conveying pipe |
| CN106969263A (en) * | 2017-03-17 | 2017-07-21 | 山东科技大学 | Lotion ore slurry pipeline is along journey transporting resistance dynamic correcting method |
| CN108733923A (en) * | 2018-05-21 | 2018-11-02 | 湖南科技大学 | Goaf nitrogen based on minimal flow unit fills Calculation of pressure loss method |
| CN109101767A (en) * | 2018-09-20 | 2018-12-28 | 鞍钢集团矿业有限公司 | Paste body filling slurry pipeline drag losses calculation method based on T-H coupling |
| WO2020088694A1 (en) * | 2019-01-15 | 2020-05-07 | 山东科技大学 | Quantified design method for coordination and deformation of gob-side entry retaining support system |
| CN110685738A (en) * | 2019-11-20 | 2020-01-14 | 徐州中矿大贝克福尔科技股份有限公司 | Pressure relief device for monitoring pressure of paste filling pipeline and control method |
| CN111379588A (en) * | 2020-04-10 | 2020-07-07 | 昆明理工大学 | Mine filling slurry sedimentation segregation control system and method based on low-frequency pulse |
| CN112594002A (en) * | 2020-12-17 | 2021-04-02 | 中煤科工生态环境科技有限公司 | Large-multiple-line filling pipeline system for self-flowing delivery of high-concentration slurry |
| CN113029472A (en) * | 2021-03-09 | 2021-06-25 | 西安交通大学 | Pipe network leakage detection system and detection method |
Non-Patent Citations (6)
| Title |
|---|
| 丁德强: "矿山地下采空区膏体充填理论与技术研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 刘晓辉 等: "结构流充填料浆环管试验及其阻力特性研究", 《中国钼业》 * |
| 张亮 等: "高浓度充填料浆流变特性及其管道输送阻力损失研究", 《中国矿业》 * |
| 李帅 等: "超细全尾砂似膏体长距离自流输送的时变特性", 《东北大学学报（自然科学版）》 * |
| 熊有为 等: "大流量膏体管道输送阻力特性研究", 《矿业研究与开发》 * |
| 陈传胜 等: "实时瞬态模型法在长输天然气管道泄漏检测中的应用", 《天然气技术与经济》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117371336A (en) * | 2023-12-05 | 2024-01-09 | 昆明理工大学 | Paste yield stress prediction method and system based on deep learning |
| CN117371336B (en) * | 2023-12-05 | 2024-02-02 | 昆明理工大学 | Paste yield stress prediction method and system based on deep learning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113673180B (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113673180B (en) | Method for quickly calculating leakage position of paste filling long-distance horizontal conveying pipeline | |
| CN105135216A (en) | Method for locating leakage position of ore pulp conveying pipe | |
| CN105404776B (en) | A kind of reliability evaluation method of the pipeline containing corrosion default | |
| CN104454564A (en) | Axial flow pump device guide vane body hydraulic optimization method based on tests | |
| CN112214904B (en) | Valve chamber pressure drop rate calculation method under suction condition of gas pipeline compressor | |
| CN106869918A (en) | Offshore field productivity test method of real-time adjustment | |
| CN112115623A (en) | Method for calculating pressure drop rate of gas pipeline valve chamber under leakage working condition | |
| CN103245565B (en) | Method for high-strength hydraulic test of high-grade steel gas pipe in first-level area | |
| CN110185092A (en) | A kind of urban water supply system leakage monitoring method based on dynamic DMA subregion | |
| CN201522299U (en) | Device for measuring gas extraction flow | |
| CN111637068A (en) | Method for monitoring clearance of sealing ring on line | |
| CN205449171U (en) | Structure of zero resistance orifice flowmeter and definite its flow correction coefficient | |
| CN112347414A (en) | Single-defect bent pipe limit internal pressure calculation method | |
| CN210687784U (en) | Flow manifold group for fracturing | |
| CN200989802Y (en) | Complex stereo-face efficient flow area precision measuring device | |
| CN104032774A (en) | Real-time rubber waterstop monitoring method for immersed tunnel and rubber waterstop | |
| CN106813721B (en) | Underground drilling gas-water separation type gas pumping and discharging amount monitoring method | |
| CN212003680U (en) | Fixing device for wind measuring sensor of driving face | |
| CN213842273U (en) | Real-time regulation and control flow metering system | |
| CN108375402B (en) | Online measurement system for overflow of hydropower station water turbine based on shunt sampling method | |
| CN205449172U (en) | Structure of zero resistance orifice flowmeter and definite its flow correction coefficient | |
| CN208383204U (en) | The wing anti-blocking multiple spot air speed pipe elbow meter of one kind and negative pressure measuring device | |
| CN111323202B (en) | Method for determining reference zero point of ring pipe test system | |
| CN113702077B (en) | Metal mineral paste filling complex pipe network pipe plugging and leakage monitoring simulation experiment system | |
| CN108593021A (en) | Wing anti-blocking multiple spot air speed pipe elbow meter and negative pressure measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |