CN115876434A - Pressure load propagation experimental device and method - Google Patents
Pressure load propagation experimental device and method Download PDFInfo
- Publication number
- CN115876434A CN115876434A CN202310140467.5A CN202310140467A CN115876434A CN 115876434 A CN115876434 A CN 115876434A CN 202310140467 A CN202310140467 A CN 202310140467A CN 115876434 A CN115876434 A CN 115876434A
- Authority
- CN
- China
- Prior art keywords
- water
- detachable
- pressure
- pipe
- pipeline
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The embodiment of the invention provides a pressure load propagation experimental device and method, and relates to the technical field of operation and maintenance of tunnel pipelines. The device is including the overflow flat water tank of end to end connection in proper order, detachable pipeline and water circulating pipe way, form the hydrologic cycle return circuit, wherein, detachable pipeline level sets up, the water pump is installed on the water circulating pipe way, a plurality of longitudinal pressure sensor set up along the length direction interval of detachable pipeline, a plurality of trident pipes set up along the length direction interval of detachable pipeline, and with detachable pipeline intercommunication, a plurality of transverse pressure sensor set up along the length direction interval of trident pipe, electric control valve installs the one end that is close to the water circulating pipe way on detachable pipeline. The device and the method can realize more comprehensive and more accurate measurement of the water hammer pressure characteristic, and provide experimental support for safety assessment and operation maintenance of hydraulic tunnels and the like.
Description
Technical Field
The invention relates to the technical field of operation and maintenance of tunnel pipelines, in particular to a pressure load transmission experimental device and a pressure load transmission experimental method.
Background
With the acceleration of the urbanization process in China, the water utilization in cities and ecological environments is a necessary development trend by building long-distance water delivery projects, even cross-regional and cross-basin water delivery projects.
However, in a pressure diversion pipeline system, a series of accidents such as misoperation of a gate valve, unexpected power failure of a water pump station, sudden change of the water level of a water inlet pool and the like, as well as the starting of a water pump unit, the quick starting and closing of a hydraulic turbine unit of a hydropower station and the like cause drastic change of the flow speed of liquid in the pressure pipeline system, and simultaneously cause great fluctuation of the pressure intensity of the liquid in the pipeline, so that the pressure intensity can sometimes reach dozens of times of the normal working pressure intensity of the pipeline. Improper handling may cause strong vibration of the piping system, severe deformation and even bursting of the piping; meanwhile, pressure pulsation propagates transversely along the crack perpendicular to the pipe wall, which also causes serious consequences such as crack propagation and structural damage.
The observation of the tunnel and the pipeline prototype has the problems of high observation difficulty, high observation cost, long observation period, influence on operation and the like. With the continuous development of sensors and computer technologies, the model experiment mode is widely applied to the research of water hammer characteristics. However, the current model research on the propagation of non-constant load along the pipeline is limited to the research in a single direction, the water hammer parameters are fixed, the on-way change rule of the water hammer characteristic cannot be comprehensively reflected, and the research on the pressure distribution rule along the transverse direction of the pipe wall and the longitudinal direction of the pipeline is mainly performed mainly by qualitative observation and demonstration.
Disclosure of Invention
The invention aims to provide a pressure load propagation experimental device and a pressure load propagation experimental method, which can realize more comprehensive and more accurate measurement of water hammer pressure characteristics and provide experimental support for safety assessment and operation and maintenance of hydraulic tunnels and the like.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a pressure load propagation experimental device, which comprises an overflow flat water tank, a detachable pipeline and a water circulation pipeline which are sequentially connected end to form a water circulation loop, wherein the detachable pipeline is horizontally arranged, and the overflow flat water tank is used for controlling the flow rate of circulating water entering the detachable pipeline;
the device also comprises a water pump, a Y-pipe, longitudinal pressure sensors, transverse pressure sensors and an electric control valve, wherein the water pump is arranged on the water circulation pipeline, the longitudinal pressure sensors are arranged at intervals along the length direction of the detachable pipeline, the longitudinal pressure sensors are used for monitoring the longitudinal water flow pressure in the detachable pipeline, the Y-pipe is used for simulating a pipe wall crack, the Y-pipe is filled with a porous medium material, circulating water flows through the porous medium material and is used for simulating the circulating water to flow through the pipe wall crack, the Y-pipes are arranged at intervals along the length direction of the detachable pipeline and are communicated with the detachable pipeline, the transverse pressure sensors are arranged at intervals along the length direction of the Y-pipe, and the transverse pressure sensors are used for monitoring the transverse water flow pressure in the Y-pipe;
the electric control valve is arranged at one end of the detachable pipeline close to the water circulation pipeline and is used for controlling the amplitude of water impact of the circulating water on the detachable pipeline and the pipe wall of the Y-shaped pipe.
In an optional embodiment, the device further comprises a water return tank and a flow meter, wherein the water return tank and the flow meter are connected to the water circulation pipeline and located on two sides of the water pump.
In an alternative embodiment, the plurality of longitudinal pressure sensors are uniformly arranged along the length direction of the detachable pipe at intervals, and the plurality of transverse pressure sensors are uniformly arranged along the length direction of the Y-pipe at intervals.
In an alternative embodiment, the included angle between the protruding portion of the Y-pipe relative to the detachable pipe and the detachable pipe is: 30-90 degrees.
In an optional embodiment, the device further comprises a water level gauge, the water level gauge is installed at one end, close to the water return tank, of the detachable pipeline and is located on one side, close to the overflow flat water tank, of the electric control valve, and the water level gauge is used for visually displaying the water flow pressure when the electric control valve is closed.
In an optional embodiment, an adjustable overflow plate is arranged inside the overflow flat water tank, and the adjustable overflow plate is used for controlling the flow rate of circulating water entering the detachable pipeline.
In an alternative embodiment, the device further comprises a controller connected to the longitudinal pressure sensor, the lateral pressure sensor and the electrically controlled valve, the controller being adapted to control the closing speed of the electrically controlled valve.
In an optional embodiment, the plurality of detachable pipes are connected in sequence and are all horizontally arranged, and the number of the detachable pipes is adjusted to control the total length of the detachable pipes.
In a second aspect, the present invention provides a pressure load propagation experiment method, including:
building the pressure load propagation experimental device of the embodiment;
measuring longitudinal propagation data of water hammer pressure;
measuring lateral propagation data of water hammer pressure;
and processing the longitudinal propagation data and the transverse propagation data to obtain the propagation rule of the water hammer pressure.
In an alternative embodiment, the step of measuring longitudinal propagation data of water hammer pressure comprises:
adjusting the number of the detachable pipelines, and changing the total length of the detachable pipelines so as to control the frequency of water hammer;
adjusting the closing speed of the electric control valve to control the amplitude of water hammer;
and the longitudinal pressure sensor is used for acquiring the water flow pressure in the detachable pipeline along the longitudinal direction.
In an alternative embodiment, the step of measuring the lateral propagation data of the water hammer pressure comprises:
adjusting the number of the detachable pipes, and changing the total length of the detachable pipes so as to control the frequency of water hammer;
adjusting the closing speed of the electric control valve to control the amplitude of water hammer;
and acquiring the water flow pressure in the three-fork pipe along the transverse direction through a transverse pressure sensor.
The pressure load propagation experimental device and the method provided by the embodiment of the invention have the beneficial effects that:
through establishing pipeline water hammer model experimental apparatus, lay a plurality of pressure sensor and realize water hammer pressure along the journey and measure to through the adjustment of the amplitude of control water hammer, frequency isoparametric, study water hammer pressure is along vertical and horizontal propagation law and change characteristics, realize more comprehensive, more accurate research to water hammer pressure characteristic, and provide experimental support for the safety assessment and the operation maintenance of hydraulic tunnel etc..
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a pressure load propagation experiment apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another pressure load propagation experimental apparatus provided in an embodiment of the present invention.
An icon: 100-pressure load transmission experimental device; 1-overflow flat water tank; 2-a detachable pipe; 3-Y-pipe; 4-a water level meter; 5-an electric control valve; 6-a water return tank; 7-a water circulation pipeline; 8-a water pump; 9-a flow meter; 10-longitudinal pressure sensor; 11-a lateral pressure sensor; 12-a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the product of the present invention is used to usually place, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, arrows in the drawing indicate water flow directions, and the present embodiment provides a pressure load propagation experimental apparatus 100 (hereinafter, referred to as a "device") mainly related to an experimental apparatus for non-constant pressure load propagation along a pipe wall in a transverse direction and a pipe in a longitudinal direction, the apparatus including an overflow flat water tank 1, a detachable pipe 2, a water return tank 6, a water circulation pipe 7, a water pump 8, a flow meter 9, a water level gauge 4, a Y-pipe 3, a longitudinal pressure sensor 10, a transverse pressure sensor 11, an electric control valve 5, and a controller 12. Wherein, the longitudinal pressure sensor 10 and the transverse pressure sensor 11 are both film type pressure sensors.
Specifically, the overflow flat water tank 1, the detachable pipeline 2, the water return tank 6 and the water circulation pipeline 7 are sequentially connected end to form a water circulation loop. Wherein, a plurality of detachable pipeline 2 connect gradually, and equal level sets up, and the total length of adjustment detachable pipeline 2 is in order to control detachable pipeline 2 to can control the frequency of water hammer.
The overflow flat water tank 1 is used for storing water and providing necessary water flow for experiments through water level difference, and an adjustable overflow plate is arranged inside the overflow flat water tank 1 and used for controlling the flow rate of circulating water entering the detachable pipeline 2.
The plurality of longitudinal pressure sensors 10 are arranged at intervals along the length direction of the detachable pipeline 2, and the longitudinal pressure sensors 10 are used for monitoring the water flow pressure in the detachable pipeline 2 along the longitudinal direction. Because the detachable pipeline 2 is horizontally arranged, water flow impacts the inner wall of the detachable pipeline 2, and the inner wall of the detachable pipeline 2 is longitudinally impacted by the impact force of the water flow, so that the water flow pressure measured by the longitudinal pressure sensor 10 is the longitudinal water flow pressure.
The Y-shaped pipe 3 is used for simulating pipe wall cracks, the porous medium material is filled in the Y-shaped pipe 3, circulating water flows through the porous medium material and is used for simulating the circulating water to flow through the pipe wall cracks, and parameters such as porosity and density of the porous medium material can be selected according to requirements. A plurality of Y-pipe 3 evenly set up along detachable 2 pipeline's length direction interval, and communicate with detachable 2 pipeline, and a plurality of horizontal pressure sensor 11 evenly set up along Y-pipe 3's length direction interval, and horizontal pressure sensor 11 is used for monitoring along horizontal rivers pressure in the Y-pipe 3.
Wherein, the included angle between the part of the Y-pipe 3 extending out relative to the detachable pipe 2 and the detachable pipe 2 is: 30-90 degrees, preferably 90 degrees, and the Y-pipe 3 extends downwards relative to the detachable pipe 2. If the included angle between the extending portion of the detachable pipe 2 and the detachable pipe 2 is a, the pressure value measured by the transverse pressure sensor 11 is b, and b is the water flow pressure borne by the extending portion of the Y-pipe 3 relative to the detachable pipe 2 and is also perpendicular to the inner wall surface of the extending portion of the Y-pipe 3 relative to the detachable pipe 2, the water flow pressure c = bsina in the Y-pipe 3 along the transverse direction. If a is 90 °, the pressure value b measured by the transverse pressure sensor 11 is the water flow pressure c in the Y-pipe 3 along the transverse direction.
The length of the part of the Y-pipe 3 extending out of the detachable pipe 2 can be flexibly set, and the number of the transverse pressure sensors 11 on the Y-pipe can also be flexibly set, for example, the length of the Y-pipe 3 extending downwards can be reached, and the water flow pressure monitored by the transverse pressure sensor 11 at the lowest part is less than a preset value.
In other embodiments, a certain number of the Y-shaped tubes 3 can be provided to protrude upwards relative to the detachable pipe 2, and a lateral pressure sensor 11 can be arranged on the protruding part of the Y-shaped tubes 3 for monitoring the pressure of the water flow along the lateral direction after the water flow permeates upwards.
The content to be researched in the transverse measurement part is actually the propagation rule of the water hammer pressure in the cracks of the pipe wall. The cracks are generated on the pipe wall or the hole wall (such as a tunnel taking concrete as a main material), and the extending direction of the depth of the cracks forms a certain included angle with the pipe wall, so that the length and the angle of the extending part in the Y-pipe 3 are actually the depth of the cracks on the simulated pipe wall and the included angle between the extending part and the pipe wall. The actual crack is always very narrow, and the measuring instrument cannot be arranged at all, so that the Y-pipe 3 is used, namely the crack is amplified, and the propagation rule of the water hammer pressure in the crack of the pipe wall can be conveniently simulated.
Generally, the pipe wall crack is narrow and has a certain permeability, so that the porous medium material filled in the extending part of the Y-shaped pipe 3 has a permeability substantially simulating the crack. The actual permeability of the crack is related to the width and depth of the crack, and the permeability of the filled porous medium material is adjusted by adjusting the porosity and density of the filled porous medium material, so that the simulation of the cracks with different sizes is realized, and the simulation of the cracks with different widths is actually realized under the condition that the length of the extending part of the Y-shaped pipe 3 is controlled to be unchanged; the length of the extending part of the Y-shaped pipe 3 can be adjusted, so that the simulation of the water hammer pressure propagation rule in cracks with different depths is realized.
And the electric control valve 5 is arranged at one end of the detachable pipeline 2 close to the water return tank 6, and the electric control valve 5 is used for controlling the amplitude of water attack of the circulating water on the pipe walls of the detachable pipeline 2 and the Y-shaped pipe 3.
The water level meter 4 is arranged at one end, close to the water return tank 6, of the detachable pipeline 2 and is positioned at one side, close to the overflow flat water tank 1, of the electric control valve 5, and the water level meter 4 is used for visually displaying water flow pressure when the electric control valve 5 is closed.
The controller 12 is connected with the longitudinal pressure sensor 10, the transverse pressure sensor 11 and the electric control valve 5, and the controller 12 is used for controlling the closing speed of the electric control valve 5.
It should be easily understood that, referring to fig. 2, the pressure load propagation experiment apparatus 100 provided in this embodiment may also be configured without the water return tank 6 and the flow meter 9, and the overflow flat water tank 1, the detachable pipe 2 and the water circulation pipe 7 are sequentially connected end to form a water circulation loop.
The embodiment also provides a pressure load transmission experimental method, which mainly relates to an experimental method for non-constant pressure load to be transmitted along the transverse direction of the pipe wall and the longitudinal direction of the pipeline, and the method comprises the following steps:
step 1: the pressure load propagation experimental device 100 of the foregoing embodiment was constructed.
Specifically, the pressure load propagation experimental device 100 is constructed and formed according to the structural description of the pressure load propagation experimental device 100.
The pressure load propagation experiment device 100 is provided with the Y-shaped pipes 3 of various specifications, and the Y-shaped pipes 3 of different specifications have different lengths relative to the extending part of the detachable pipe 2 and different included angles with the detachable pipe 2.
Step 2: longitudinal propagation data of water hammer pressure are measured.
Specifically, firstly, the number of the detachable pipes 2 is adjusted, and the total length of the detachable pipes 2 is changed, so as to control the frequency of water hammer; then, the closing speed of the electric control valve 5 is adjusted to control the amplitude of water hammer; finally, the water flow pressure along the longitudinal direction in the detachable pipeline 2 is collected through the longitudinal pressure sensor 10 and is sent to the controller 12, so that different parameters of water hammer are adjusted, and the controller 12 obtains longitudinal propagation data of water hammer pressure under different conditions.
And step 3: lateral propagation data of water hammer pressure are measured.
Specifically, firstly, the number of the detachable pipes 2 is adjusted, and the total length of the detachable pipes 2 is changed, so as to control the frequency of water hammer; then, the closing speed of the electric control valve 5 is adjusted to control the amplitude of the water hammer; finally, the water flow pressure in the Y-pipe 3 along the transverse direction is collected through the transverse pressure sensor 11 and sent to the controller 12, so that different parameters of water hammer are adjusted, and the controller 12 obtains transverse propagation data of water hammer pressure under different conditions.
And 4, step 4: and processing the longitudinal propagation data and the transverse propagation data to obtain the propagation rule of the water hammer pressure.
Specifically, according to the collected longitudinal propagation data and the collected transverse propagation data, time domain characteristics, frequency domain characteristics, probability density, distribution along the way, propagation depth, attenuation rate and other laws of the water hammer pressure in longitudinal and transverse propagation are respectively analyzed, influences of parameters such as water hammer amplitude and frequency on the propagation of the water hammer pressure in different directions are discussed, and the difference of the longitudinal and transverse propagation of the water hammer pressure are contrastingly analyzed.
For the transverse propagation of the water attack pressure, in addition to the analysis content, the extension length of the Y-tube 3 is controlled to be unchanged, and the influence of different permeabilities, namely different crack widths on the propagation of the water attack pressure along the path, such as the influence on the properties of amplitude, frequency, propagation depth and the like, is analyzed; similarly, by adjusting the angle and the length of the extending part of the Y-shaped pipe 3, the difference of the propagation rule of the water hammer pressure in the cracks with different angles and depths is analyzed.
The pressure load propagation experimental device 100 and the method provided by the embodiment of the invention have the beneficial effects that:
through establishing pipeline water hammer model experimental apparatus, lay a plurality of pressure sensor and realize water hammer pressure along the journey and measure to through the adjustment of the amplitude of control water hammer, frequency isoparametric, study water hammer pressure is along vertical and horizontal propagation law and change characteristics, realize more comprehensive, more accurate research to water hammer pressure characteristic, and provide experimental support for the safety assessment and the operation maintenance of hydraulic tunnel etc..
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A pressure load propagation experimental device is characterized by comprising an overflow flat water tank (1), a detachable pipeline (2) and a water circulation pipeline (7) which are sequentially connected end to form a water circulation loop, wherein the detachable pipeline (2) is horizontally arranged, and the overflow flat water tank (1) is used for controlling the flow rate of circulating water entering the detachable pipeline (2);
the device further comprises a water pump (8), a Y-pipe (3), longitudinal pressure sensors (10), transverse pressure sensors (11) and an electric control valve (5), wherein the water pump (8) is installed on the water circulation pipeline (7), the longitudinal pressure sensors (10) are arranged at intervals along the length direction of the detachable pipeline (2), the longitudinal pressure sensors (10) are used for monitoring the water flow pressure along the longitudinal direction in the detachable pipeline (2), the Y-pipe (3) is used for simulating pipe wall cracks, porous medium materials are filled in the Y-pipe (3), circulating water flows through the porous medium materials and is used for simulating circulating water to flow through the pipe wall cracks, the Y-pipes (3) are arranged at intervals along the length direction of the detachable pipeline (2) and are communicated with the detachable pipeline (2), the transverse pressure sensors (11) are arranged at intervals along the length direction of the Y-pipe (3), and the transverse pressure sensors (11) are used for monitoring the water flow pressure along the transverse direction in the Y-pipe (3);
the electric control valve (5) is installed at one end, close to the water circulation pipeline (7), of the detachable pipeline (2), and the electric control valve (5) is used for controlling the amplitude of water hammer of the circulating water on the pipe walls of the detachable pipeline (2) and the Y-shaped pipe (3).
2. The pressure load propagation experimental device according to claim 1, characterized in that the device further comprises a water return tank (6) and a flow meter (9), wherein the water return tank (6) and the flow meter (9) are connected to the water circulation pipeline (7) and are positioned on two sides of the water pump (8).
3. The pressure load propagation experiment device according to the claim 1, wherein a plurality of the longitudinal pressure sensors (10) are arranged at intervals along the length direction of the detachable pipe (2), and a plurality of the transverse pressure sensors (11) are arranged at intervals along the length direction of the Y-pipe (3).
4. A pressure load propagation experimental device according to claim 1, characterized in that the included angle between the protruding part of the Y-piece (3) relative to the detachable pipe (2) and the detachable pipe (2) is: 30-90 degrees.
5. The pressure load propagation experiment device according to the claim 2, characterized in that the device further comprises a water level gauge (4), the water level gauge (4) is installed at one end of the detachable pipe (2) close to the water return tank (6) and is located at one side of the electric control valve (5) close to the overflow flat water tank (1), and the water level gauge (4) is used for visually displaying the water flow pressure when the electric control valve (5) is closed.
6. The pressure load transmission experimental device according to claim 1, wherein an adjustable overflow plate is arranged inside the overflow flat water tank (1), and the adjustable overflow plate is used for controlling the flow rate of circulating water entering the detachable pipeline (2).
7. The pressure load propagation experimental device according to claim 1, wherein a plurality of the detachable pipes (2) are connected in sequence and are all horizontally arranged, and the number of the detachable pipes (2) is adjusted to control the total length of the detachable pipes (2).
8. A method of pressure load propagation testing, the method comprising:
constructing the pressure load propagation experimental device of claim 1;
measuring longitudinal propagation data of water hammer pressure;
measuring lateral propagation data of water hammer pressure;
and processing the longitudinal propagation data and the transverse propagation data to obtain a propagation rule of the water hammer pressure.
9. The pressure load propagation experimental method according to claim 8, wherein the step of measuring longitudinal propagation data of water hammer pressure comprises:
adjusting the number of the detachable pipelines (2), and changing the total length of the detachable pipelines (2), thereby controlling the frequency of water hammer;
adjusting the closing speed of the electrically controlled valve (5) to control the amplitude of water hammer;
and the longitudinal pressure sensor (10) is used for collecting the water flow pressure in the detachable pipeline (2) along the longitudinal direction.
10. The pressure load propagation experimental method according to claim 8, wherein the step of measuring lateral propagation data of water hammer pressure comprises:
adjusting the number of the detachable pipelines (2), and changing the total length of the detachable pipelines (2), thereby controlling the frequency of water hammer;
adjusting the closing speed of the electrically controlled valve (5) to control the amplitude of water hammer;
and the water flow pressure in the Y-shaped pipe (3) along the transverse direction is acquired through the transverse pressure sensor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310140467.5A CN115876434B (en) | 2023-02-21 | 2023-02-21 | Pressure load propagation experimental device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310140467.5A CN115876434B (en) | 2023-02-21 | 2023-02-21 | Pressure load propagation experimental device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115876434A true CN115876434A (en) | 2023-03-31 |
| CN115876434B CN115876434B (en) | 2023-05-02 |
Family
ID=85761400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310140467.5A Active CN115876434B (en) | 2023-02-21 | 2023-02-21 | Pressure load propagation experimental device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115876434B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003055951A (en) * | 2000-12-13 | 2003-02-26 | Maruyama Kogyo Kk | Improving method and improving device for soft ground |
| CN103105333A (en) * | 2013-01-22 | 2013-05-15 | 南京工业大学 | In-situ test measuring system for cross-fault buried pipeline |
| CN104568377A (en) * | 2014-12-04 | 2015-04-29 | 中国核动力研究设计院 | Eccentric pipe for simulating hybrid reactor subcritical energy cladding passage in heating, and experimental device |
| CN104849135A (en) * | 2015-05-26 | 2015-08-19 | 中国电建集团中南勘测设计研究院有限公司 | Testing device for measuring hydrodynamic gap pressure of bottom plates of plunge pool |
| CN107389305A (en) * | 2017-09-21 | 2017-11-24 | 清华大学 | Facilitate easy-to-use multi-state controllable temperature cavitation visual experimental apparatus and experimental method |
| CN211179004U (en) * | 2019-12-10 | 2020-08-04 | 金诚信矿业管理股份有限公司 | Experimental device for testing influence of reducer pipe on full pipe rate of filling vertical pipe |
| US10928513B2 (en) * | 2015-12-15 | 2021-02-23 | Reece Innovation Centre Limited | System for monitoring and/or surveying conduits |
| CN215931229U (en) * | 2021-10-18 | 2022-03-01 | 清华四川能源互联网研究院 | Water pool experimental device |
| CN114894436A (en) * | 2022-05-23 | 2022-08-12 | 天津大学 | Pipeline slug motion and impact experiment system |
| CN114964710A (en) * | 2022-05-13 | 2022-08-30 | 中山大学 | Municipal drainage pipeline defect simulation experiment device and method |
-
2023
- 2023-02-21 CN CN202310140467.5A patent/CN115876434B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003055951A (en) * | 2000-12-13 | 2003-02-26 | Maruyama Kogyo Kk | Improving method and improving device for soft ground |
| CN103105333A (en) * | 2013-01-22 | 2013-05-15 | 南京工业大学 | In-situ test measuring system for cross-fault buried pipeline |
| CN104568377A (en) * | 2014-12-04 | 2015-04-29 | 中国核动力研究设计院 | Eccentric pipe for simulating hybrid reactor subcritical energy cladding passage in heating, and experimental device |
| CN104849135A (en) * | 2015-05-26 | 2015-08-19 | 中国电建集团中南勘测设计研究院有限公司 | Testing device for measuring hydrodynamic gap pressure of bottom plates of plunge pool |
| US10928513B2 (en) * | 2015-12-15 | 2021-02-23 | Reece Innovation Centre Limited | System for monitoring and/or surveying conduits |
| CN107389305A (en) * | 2017-09-21 | 2017-11-24 | 清华大学 | Facilitate easy-to-use multi-state controllable temperature cavitation visual experimental apparatus and experimental method |
| CN211179004U (en) * | 2019-12-10 | 2020-08-04 | 金诚信矿业管理股份有限公司 | Experimental device for testing influence of reducer pipe on full pipe rate of filling vertical pipe |
| CN215931229U (en) * | 2021-10-18 | 2022-03-01 | 清华四川能源互联网研究院 | Water pool experimental device |
| CN114964710A (en) * | 2022-05-13 | 2022-08-30 | 中山大学 | Municipal drainage pipeline defect simulation experiment device and method |
| CN114894436A (en) * | 2022-05-23 | 2022-08-12 | 天津大学 | Pipeline slug motion and impact experiment system |
Non-Patent Citations (1)
| Title |
|---|
| 李青宁;徐改革;姜维山;郑先超;徐明堂;: "局部外包方钢管连接混凝土构件工作性能试验研究", 《西安建筑科技大学学报(自然科学版)》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115876434B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1316324C (en) | Method for detecting and correcting sensor failure in oil and gas prodn. system | |
| CN109033504B (en) | Oil-water well casing damage prediction method | |
| CN109725366B (en) | Method and system for positioning rainwater blocking point | |
| CN101762347B (en) | Method for measuring rope force of multi-span steel stay rope by using half-wave method | |
| CN112628613A (en) | Method and system for monitoring pipeline leakage, positioning leakage and calculating leakage amount | |
| CN108050394A (en) | Fuel gas pipeline leakage based on sound pressure signal identification detects positioning experiment platform | |
| CN103712863A (en) | Device and method for researching damage to fractured rock mass and expansion of crack based on catastrophe theory | |
| CN105805559A (en) | Liquid-phase pipe leakage irregular hole equivalent round hole experimental device and experimental method | |
| WO2023246380A1 (en) | Method and apparatus for determining nipple system of shale gas horizontal well flowback phase | |
| CN110716030A (en) | Karst collapse multi-parameter monitoring and early warning test system | |
| US20230266498A1 (en) | Full wellbore pressure calculation method, device and computer readable storage medium for fracturing horizontal well | |
| CN109751045B (en) | Overflow lost circulation monitoring method and device | |
| CN203585824U (en) | Pipeline leakage test device | |
| CN114486171A (en) | Three-dimensional landslide surge test normal physical model for river channel type reservoir | |
| CN115876434A (en) | Pressure load propagation experimental device and method | |
| CN210564502U (en) | Experimental device for evaluating influence of interlayer and injection-production point on recovery ratio of thick-layer oil reservoir | |
| CN211374743U (en) | Karst collapse multi-parameter monitoring and early warning test system | |
| CN110656918B (en) | Multi-scale crack two-phase flow simulation evaluation method | |
| Shehadeh et al. | Modelling the effect of incompressible leakage patterns on rupture area in pipeline | |
| CN204789265U (en) | On --spot nondestructive test device of gaseous osmotic coefficient of bridge structures concrete | |
| CN106289415A (en) | A kind of piping flow calculates method, device and pipe-line system | |
| Iwanek et al. | Suffosion holes as the results of a breakage of a buried water pipe | |
| CN216051308U (en) | Multi-dimension-multi-physical-field fractured loess subsurface corrosion mechanism physical model experiment device | |
| CN110685677A (en) | Water control simulation experiment device and experiment method for horizontal well of heterogeneous oil reservoir | |
| CN104729786A (en) | Dynamic measurement method for grouting pressure in hole |
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 |