CN113092085B - Measurement test device for transient whipping behavior of pressurizing pipeline - Google Patents
Measurement test device for transient whipping behavior of pressurizing pipeline Download PDFInfo
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- CN113092085B CN113092085B CN202110238424.1A CN202110238424A CN113092085B CN 113092085 B CN113092085 B CN 113092085B CN 202110238424 A CN202110238424 A CN 202110238424A CN 113092085 B CN113092085 B CN 113092085B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a measurement test device for transient whipping behavior of a pressurizing pipeline, which comprises a pipeline, a pressurizing assembly, a pressure relief assembly and a data acquisition assembly, wherein the pressurizing assembly is arranged on the pipeline; one end of the pipeline is horizontally fixed on the base, extends out of a section and is connected with the pressurizing assembly; the other end of the pipeline is a swinging end and is connected with the pressure relief assembly; the pressurizing assembly comprises a high-pressure tank, a water pump and a high-pressure gas pressurizing machine; the pressure relief assembly comprises a high-strength connecting pipe, one end of the high-strength connecting pipe is bent by 90 degrees and is connected with the rupture disk; the data acquisition assembly comprises a high-speed camera, a DIC, a dynamic acquisition instrument and a computer terminal. The invention can accurately and conveniently measure the transient whipping behavior of the pipeline in the three-dimensional space caused by the rupture. Based on the obtained pressure sensor change time course, the high-speed camera pictures, the strain field distribution of the key position of the pipeline and the like, the internal pressure and flow change rule and the pipeline whipping behavior characteristics in the process of whipping the pipeline can be accurately represented.
Description
Technical Field
The invention relates to a test device for simulating a whipping behavior caused by accidental breakage of a pressurizing pipeline, in particular to a test device for measuring a transient whipping behavior of the pressurizing pipeline.
Background
The strong shaking behavior of the pipeline caused by medium leakage due to accidental impact, explosion fragment invasion or corrosion defects under the action of internal pressure is an important engineering problem concerning the safety of a single pipeline and an integral pipeline network, and is an important basis for establishing a mechanical analysis model, designing the pipeline and predicting disasters. In the prior art, no mature test device special for identifying and measuring the swing behavior of the pipeline exists. In the test process of testing the swinging behavior of the pipeline, an experimenter usually performs the test by a static test method similar to the loading of the end part of a cantilever beam, the test slowly applies pressure to the wall surface of the end part of the pipeline through a loading device which is vertical to the span direction of the pipeline, and the bending moment-curvature relation of the test is recorded in the loading process. However, the inertia effect is inevitably ignored in the experimental method, so that the difference between the structural effect and the real transient swing response is too large, and the bending resistance change of the pipeline caused by sudden reduction of the pressure in the pipeline due to escape of the medium in the pipeline and the change of the amplitude and the direction of the step force at the end of the pipeline along with the large deformation effect of the pipeline cannot be fully inspected, so that the prediction distortion of the overall response behavior of the pipeline and the inspection error of the influence factors are caused, and the main characteristics of the swing behavior of the pipeline cannot be accurately reflected.
Disclosure of Invention
Aiming at the technical problem, the invention provides a device for measuring and testing transient whipping behavior of a pressurized pipeline.
The technical solution adopted by the invention is as follows:
a measurement test device for transient whip behavior of a pressurizing pipeline comprises a pipeline, a pressurizing assembly, a pressure relief assembly and a data acquisition assembly;
one end of the pipeline is horizontally fixed on the base and extends outwards for a section, and the end is a fixed end and is connected with the pressurizing assembly; the other end of the pipeline is a swinging end and is connected with the pressure relief assembly;
the pressurizing assembly comprises a high-pressure tank, a water pump and a high-pressure gas pressurizing machine, an outlet at the lower part of the high-pressure tank is communicated with the fixed end of the pipeline through a first high-pressure hose, and a first pneumatic high-pressure ball valve, a pressure reducing valve, a second pneumatic high-pressure ball valve, a first pressure sensor and a first electromagnetic flowmeter are arranged on the first high-pressure hose; the lower inlet of the high-pressure tank is connected with the water pump through a second high-pressure hose, and a second electromagnetic flowmeter is arranged on the second high-pressure hose; an inlet at the upper part of the high-pressure tank is connected with a high-pressure gas charging machine through a third high-pressure hose;
the pressure relief assembly comprises a high-strength connecting pipe, one end of the high-strength connecting pipe is communicated with the throwing end of the pipeline, and the other end of the high-strength connecting pipe is bent by 90 degrees and connected with a rupture disk;
the data acquisition assembly comprises a first high-speed camera, a first non-contact three-dimensional strain optical measurement system, a second high-speed camera, a second non-contact three-dimensional strain optical measurement system, a dynamic acquisition instrument and a computer terminal; the first high-speed camera and the first non-contact three-dimensional strain optical measurement system are arranged right in front of the pipeline, and the second high-speed camera and the second non-contact three-dimensional strain optical measurement system are arranged right above the pipeline;
the pipeline is respectively provided with a plurality of mark points which face the outer surfaces of the first non-contact three-dimensional strain optical measurement system and the second non-contact three-dimensional strain optical measurement system and are arranged at intervals along the axial direction of the pipeline;
the first pneumatic high-pressure ball valve, the second pneumatic high-pressure ball valve, the first pressure sensor, the first electromagnetic flowmeter, the second electromagnetic flowmeter, the first high-speed camera, the second high-speed camera, the first non-contact three-dimensional strain optical measurement system and the second non-contact three-dimensional strain optical measurement system are respectively connected with the dynamic acquisition instrument and the computer terminal through signal lines.
Preferably, the high-pressure tank is further provided with a third pressure sensor, a pressure controller and a safety valve; the third pressure sensor and the pressure controller are respectively connected with the computer terminal through signal lines, and the pressure controller is respectively connected with the high-pressure gas pressurizing machine and the water pump.
Preferably, the high-strength connecting pipe is further connected with a second pressure sensor, and the second pressure sensor is connected with the dynamic acquisition instrument through a signal line.
Preferably, the rupture disk is fixed on the flange; the flange includes first ring flange and second ring flange, and first ring flange is connected on the pipeline, and first ring flange passes through the bolt to be connected with the second ring flange, and the rupture disk centre gripping is between first ring flange and second ring flange, and between first ring flange and rupture disk to and all be provided with the gasket between second ring flange and the rupture disk.
Preferably, the first pressure sensor, the first electromagnetic flowmeter and the second electromagnetic flowmeter are respectively connected with a dynamic acquisition instrument through signal lines, and the dynamic acquisition instrument is connected with a computer terminal; the first pneumatic high-pressure ball valve, the second pneumatic high-pressure ball valve, the first non-contact three-dimensional strain optical measurement system, the second non-contact three-dimensional strain optical measurement system, the first high-speed camera and the second high-speed camera are respectively connected with the computer terminal through signal lines.
Preferably, first high-pressure hose is linked together through seal assembly and pipeline, seal assembly includes 1 female head of cutting ferrule, 1 steel snap ring and 1 male head of cutting ferrule.
Preferably, the base comprises a fixed seat and a pressing block, strip-shaped grooves with semicircular sections are formed in the center of the bottom of the pressing block and the center of the top of the fixed seat, the pressing block is fixedly connected with the fixed seat through a bolt, and after the pressing block is connected with the fixed seat, the two strip-shaped grooves are spliced to form a pipeline hole for a pipeline to pass through; the fixed seat is fixed on the rigid floor through a bolt.
The beneficial technical effects of the invention are as follows:
the high-pressure tank in the pressurizing assembly can store water and high-pressure gas at the same time, and can also only store gas so as to respectively simulate the cracking and swinging of a pipeline for conveying liquid medium or gas medium; the rupture disk in the pressure relief assembly can be designed into different rupture pressures to adapt to different experimental schemes; a high-speed camera and a non-contact three-dimensional strain optical measurement system (DIC) in the data acquisition assembly are used for recording deformation and strain characteristics in a three-dimensional space in the process of shaking the pipeline; and the pressure and flow change of the corresponding position can be recorded in real time through a pressure sensor, an electromagnetic flowmeter and the like in the device.
The invention can accurately and conveniently measure the transient whipping behavior of the pipeline in the three-dimensional space caused by the rupture. Based on the measured pressure sensor change time, the high-speed camera pictures, the strain field distribution of the key positions of the pipeline and the like, the internal pressure and flow change rules and the pipeline whipping behavior characteristics in the process of whipping the pipeline can be accurately represented, and a basis is provided for mechanical analysis model establishment, pipeline design, disaster prediction and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an exploded view of the pressurizing assembly of the present invention;
FIG. 3 is an exploded view of the pressure relief assembly of the present invention.
In the figure: 1. a base; 2. a pipeline; 3. a water pump; 4. a high-pressure gas charging machine; 5. a high-pressure tank; 6. a first high pressure hose; 7. a signal line; 8. a first pneumatic high pressure ball valve; 9. a pressure reducing valve; 10. a second pneumatic high pressure ball valve; 11. a first pressure sensor; 12. a first electromagnetic flow meter; 13. a second pressure sensor; 14. a pressure relief assembly; 15. a first high-speed camera; 16. a second high-speed camera; 17. a dynamic acquisition instrument; 18. a high-strength bolt; 19. a gasket; 20. a flange; 21. aligning the filaments; 22. quickly connecting a female joint; 23. quickly connecting a male head; 24. a sleeve nut; 25. a steel snap ring; 26. the sleeve is sleeved with a male head; 27. a rupture disk; 28. a high-strength connecting pipe; 29. spraying spots; 30. a third pressure sensor; 31. a computer terminal; 32. a pressure controller; 33. a rigid top plate; 34. a second electromagnetic flow meter; 35. lateral DIC; 36. a top DIC; 37-a second high pressure hose; 38-third high pressure hose.
Detailed Description
With reference to the attached drawings, the device for measuring and testing the transient whipping behavior of the pressurizing pipeline comprises a pipeline 2, a pressurizing assembly, a pressure relief assembly 14 and a data acquisition assembly. One end of the pipeline 2 is horizontally fixed on the base 1 and extends outwards for a section, and the end is a fixed end and is connected with the pressurizing assembly. The other end of the pipeline 2 is a swinging end and is connected with the pressure relief assembly.
The pressurizing assembly comprises a high-pressure tank 5, a water pump 3 and a high-pressure gas pressurizing machine 4, an outlet at the lower part of the high-pressure tank 5 is communicated with the fixed end of the pipeline 2 through a first high-pressure hose 6, and a first pneumatic high-pressure ball valve 8, a pressure reducing valve 9, a second pneumatic high-pressure ball valve 10, a first pressure sensor 11 and a first electromagnetic flowmeter 12 are arranged on the first high-pressure hose 6. The lower inlet of the high-pressure tank 5 is connected with the water pump 3 through a second high-pressure hose 37, and a second electromagnetic flowmeter 34 is arranged on the second high-pressure hose 37 to monitor the water inflow. The upper inlet of the high-pressure tank 5 is connected with the high-pressure gas charging and pressing machine 4 through a third high-pressure hose 38.
The pressure relief assembly comprises a high-strength connecting pipe, one end of the high-strength connecting pipe 28 is communicated with the swinging end of the pipeline 2, and the other end of the high-strength connecting pipe is bent upwards by 90 degrees and connected with the rupture disk 27.
The data acquisition assembly includes a first high speed camera 15, a lateral DIC 35, a second high speed camera 16, a top DIC 36, and a dynamic acquisition instrument 17 and a computer terminal 31. The first high speed camera 15 and the top DIC 36 are disposed directly above the pipeline and the second high speed camera 16 and the side DIC 35 are disposed directly in front of the pipeline. The pipeline is respectively provided with a plurality of spray spots 29 on the outer surfaces facing the top DIC 36 and the lateral DIC 35 at intervals along the axial direction of the pipeline, the spray spots are used as mark points, and the mark points can be pasted, so that the deformation and displacement characteristic analysis of the pipeline can be conveniently carried out in the later period through the deformation process recorded by the high-speed camera and the DIC.
The first pneumatic high-pressure ball valve 8, the second pneumatic high-pressure ball valve 10, the first pressure sensor 11, the first electromagnetic flow meter 12, the second electromagnetic flow meter 34, the first high-speed camera 15, the second high-speed camera 16, the lateral DIC 35 and the top DIC 36 are respectively connected with the dynamic acquisition instrument 17 and the computer terminal 31 through signal lines 7.
As a further design of the present invention, a third pressure sensor 30, a pressure controller 32 and a safety valve are further disposed on the high-pressure tank 5. The third pressure sensor 30 and the pressure controller 32 can be connected to a computer terminal through signal lines, respectively, and the third pressure sensor 30 can also be connected to a dynamic collection instrument through signal lines. The pressure controller 32 is connected to the high-pressure gas charging machine 4 and the water pump 3, respectively. The high-pressure tank 5 can store water and high-pressure gas at the same time, and can also only store gas so as to respectively simulate the cracking and swinging of pipelines for conveying liquid media or gas media. The third pressure sensor 30 is used to monitor and record the pressure in the high-pressure tank 5.
The pressure controller 32 controls and regulates the water inflow and pressure in the high-pressure tank 5 by controlling the on/off of the high-pressure gas charging and pressing machine 4 and the water pump 3. During the test, firstly, setting a water inflow and a pressure value in the tank on the computer terminal 31, wherein the pressure value needs to be higher than a designed pressure value in the pipeline in the test process, after the click is started, automatically starting the water pump 3 to supply water into the tank, and automatically stopping water inflow after the water inflow reaches the set value; then, the high-pressure gas pressurizing machine 4 is automatically started to pressurize the tank, and the pressurizing is automatically stopped after the pressure reaches a set value; in the test process, the pressure of the gas in the high-pressure tank is used for pressing the water to the pipeline, and the pressure in the high-pressure tank is reduced in a small range in the test process due to the high compressibility of the gas.
The safety valve is used for outwards releasing gas pressure when the pressure controller 32 fails so as to prevent the tank body from cracking caused by excessive internal pressure of the high-pressure tank.
Further, a second pressure sensor 13 is connected to the high-strength connecting pipe 28, and the second pressure sensor 13 is connected to the dynamic acquisition instrument 17 through a signal line.
Further, the rupture disk 27 is fixed to the flange 20. The flange 20 includes first ring flange and second ring flange, and first ring flange is connected on the pipeline, and first ring flange passes through the bolt to be connected with the second ring flange, and rupture disk 27 centre gripping is between first ring flange and second ring flange, and between first ring flange and rupture disk to and all be provided with gasket 19 between second ring flange and the rupture disk.
More specifically, the first pressure sensor 11, the first electromagnetic flow meter 12 and the second electromagnetic flow meter 34 are respectively connected to the dynamic data collector 17 through signal lines for collecting real-time dynamic data, and the dynamic data collector 17 is connected to the computer terminal 31. The first pneumatic high-pressure ball valve 8, the second pneumatic high-pressure ball valve 10, the lateral DIC 35, the top DIC 36, the first high-speed camera 15 and the second high-speed camera 16 are directly connected with the computer terminal 31 through signal lines respectively.
The high-pressure tank 5, the first pneumatic high-pressure ball valve 8, the pressure reducing valve 9, the second pneumatic high-pressure ball valve 10, the first pressure sensor 11, the first electromagnetic flowmeter 12 and the first sealing assembly are sequentially connected through the first high-pressure hose 6 and the flanges, the flanges are connected through the high-strength bolt 18, the flange gasket is utilized to strengthen sealing, and the first sealing assembly is directly connected with the fixed end of the pipeline 2. The swinging end of the pipeline 2 is connected with a high-strength connecting pipe 28 through a second sealing assembly. The first sealing assembly comprises a pair of threads 21, a quick-connection female head 22 and a quick-connection male head 23, and the second sealing assembly comprises a clamping sleeve female head 24, a steel clamping ring 25 and a clamping sleeve male head 26.
The inner diameter of the steel snap ring 25 is unchanged and is consistent with the outer diameter of the pipeline 2, the outer part of the snap ring is provided with a certain slope from the head part to the bottom part, the outer diameter is gradually increased to form an outer conical surface, the bottom part is outwards protruded and then retracted to the initial outer diameter, the edge of the head part can just enter the inner part of the male head of the clamping sleeve, and the whole bottom part can just be placed in the inner part of the female head of the clamping sleeve. When sealed steel snap ring bottom is put into female first inside of cutting ferrule, the sealed snap ring of main sealing effect plays, under the axial action of the public head 26 of cutting ferrule, the female 24 revolving forces of cutting ferrule that play the compaction effect, along the interior taper hole axial displacement of the public head of cutting ferrule, sealed snap ring head produces radial shrinkage and pastes tight pipeline surface under the effect of the public head radial reaction force of cutting ferrule simultaneously to form radial extrusion force to the pipeline outer wall and realize the sealed to the pipeline. The cutting sleeve male head is hollow and communicated with the cutting sleeve male head, one part of the outer part of the cutting sleeve male head is a hexagonal prism, the hexagonal prism is used for screwing a wrench in the using process, and the hollow part in the hexagonal prism is a round hole with internal threads; the other part of outer wall processing external screw thread is matched and connected with the female head internal screw thread of the clamping sleeve, the inner hollow part is an inner conical hole with the inner diameter gradually reduced from outside to inside and is matched with the outer conical surface of the sealing clamping ring, and part of the outer conical surface of the clamping ring just enters. One part of the female head of the clamping sleeve is a hollow hexagonal prism, the hexagonal prism is used for screwing a wrench in a using process, the inner hollow part is matched and connected with an internal thread round hole and the male head of the clamping sleeve through external threads, the hollow part is used for placing a clamping ring into the clamping ring along the bottom and penetrating through a pipeline, the other part of the female head of the clamping sleeve is a circular baffle with a round hole in the middle, and the pipeline just penetrates through the round hole to enter the female head of the clamping sleeve.
The high-strength connection pipe 28 is made of a high-strength steel material, and is not considered to be deformed during the shaking of the pipe. The number of the connectors is 3, 2 of the connectors are external thread connectors and are respectively connected with the cutting sleeve male head 26 and the second pressure sensor 13 of the second sealing component, and the other connector is connected with a flange after the end part of the other connector is bent upwards by 90 degrees.
The rupture disk 27 is connected to the bent end interface of the high-strength connecting pipe 28 by a flange, a flange gasket and a bolt. When the internal pressure of the pipe reaches the burst pressure of the burst disk 27, the burst disk 27 ruptures and releases the fluid, and the pipe is thrown by the reaction force of the injected fluid. The rupture disk can be designed into different burst pressures to adapt to different experimental schemes.
The number of the pressure sensors is 3, namely a first pressure sensor 11, a second pressure sensor 13 and a third pressure sensor 30, so that the pressure at the inlet of the pipeline, the pressure at the outlet of the pipeline and the pressure inside the high-pressure tank in the test process can be monitored and recorded respectively.
The first electromagnetic flow meter 12 and the second electromagnetic flow meter 34 are respectively installed at the fixed end of the pipeline and between the high-pressure tank and the water pump, and are respectively used for recording the water outlet amount of the pipeline and the water inlet amount of the high-pressure tank in the test process.
The first pneumatic high-pressure ball valve 8 and the second pneumatic high-pressure ball valve 10 can be connected with a computer terminal through signal lines by additionally installing electrical elements such as electromagnetic valves, and the opening/closing of the valves can be remotely controlled through the computer terminal. The pressure reducing valve 9 is located between the first pneumatic high-pressure ball valve 8 and the second pneumatic high-pressure ball valve 10, and is used for outputting constant medium pressure to a pipeline.
The first high-speed camera 15 and the second high-speed camera 16 are respectively positioned right above and right in front of the pipeline 2 so as to record deformation characteristics in a three-dimensional space during the swinging process of the pipeline. The first high-speed camera 15 is fixed to the rigid top plate 33. The visual field of the high-speed camera and the DIC can cover the area from the initial state to the maximum deformation of the swinging part of the pipeline, so that the tracking adjustment of the visual field in the test process can be avoided, the adjustment and calibration can be completed in one step before the test is started, and the convenience in use is brought.
Above-mentioned base 1 includes fixing base and briquetting, all is provided with the semicircular bar groove in cross-section at the bottom center of briquetting and the top center of fixing base, and the briquetting passes through bolt fixed connection with the fixing base, and after the briquetting was connected with the fixing base, two bar groove concatenations formed the pipeline hole that is used for the pipeline to pass. The fixed seat is fixed on the rigid floor through a bolt.
The invention can accurately and conveniently measure the transient whipping behavior of the pipeline in the three-dimensional space caused by the rupture. Based on the measured pressure sensor change time, the high-speed camera pictures, the strain field distribution of the key positions of the pipeline and the like, the internal pressure and flow change rules and the pipeline whipping behavior characteristics in the process of whipping the pipeline can be accurately represented, and a basis is provided for mechanical analysis model establishment, pipeline design, disaster prediction and the like.
The method for performing transient swing behavior experiment of the charging pipeline by adopting the device of the invention roughly comprises the following steps:
firstly, starting a test, preparing a test pipeline, and pasting a strain gauge on a key part (such as the root part of the pipeline) of the pipeline for reasonable protection;
secondly, inputting target internal pressure at a computer terminal;
thirdly, arranging a pipeline to the base;
fourthly, spraying spots on the outer wall right in front of and above the pipeline;
fifthly, arranging a pressure sensor and a pressure relief assembly at one end of the pipeline;
sixthly, connecting the other end of the pipeline with a pressure sensor, an electromagnetic flowmeter, a pneumatic high-pressure ball valve and the like through a quick-connection male joint, a quick-connection female joint and a high-pressure hose, and connecting the other end of the pipeline with an outlet at the bottom of the high-pressure tank;
seventhly, arranging a high-speed camera and a DIC (non-contact three-dimensional strain optical measurement system) in front of and above the pipeline respectively;
eighthly, connecting an upper inlet at one side of the high-pressure tank with the gas charging machine, and connecting a lower inlet with the water pump;
ninth, pressurizing the high-pressure tank by a gas pressurizing machine, and starting a high-speed camera, DIC and the like;
step ten, medium flows into the pipeline through components such as a pneumatic high-pressure ball valve, a pressure reducing valve and the like, and the pressure of the medium is gradually increased to a target pressure level;
step ten, when the pressure in the pipeline reaches the target pressure, the pressure relief assembly at the end part of the test piece is started, and the rupture disc is ruptured to cause the test piece to swing intensely and instantaneously;
step ten, synchronously measuring and displaying the pressure at each position in the pipe, the pipe wall strain and the volume of escaping medium in the pipeline recorded by the flowmeter by using a dynamic acquisition instrument and the like; the high-speed camera system records the configuration of each instantaneous pipeline; DIC analysis of the displacement field and the pipe wall strain field of the test piece;
step thirteen, stopping data acquisition until the test piece stops shaking;
fourthly, disassembling and checking the rupture condition of the pipeline, and representing the typical section deformation characteristic of the pipeline;
fifteenth, evaluating the performance index of the pipeline based on quantitative relations of test observation, test piece displacement, internal pressure and the like; the test was completed.
Parts not described in the above modes can be realized by adopting or referring to the prior art.
It is intended that any equivalents, or obvious variations, which may be made by those skilled in the art in light of the teachings herein, be considered within the scope of the present invention.
Claims (7)
1. The utility model provides a measurement test device of pipeline transient state whipping action pressurizes which characterized in that: the device comprises a pipeline, a pressurizing assembly, a pressure relief assembly and a data acquisition assembly;
one end of the pipeline is horizontally fixed on the base and extends outwards for a section, and the end is a fixed end and is connected with the pressurizing assembly; the other end of the pipeline is a swinging end and is connected with the pressure relief assembly;
the pressurizing assembly comprises a high-pressure tank, a water pump and a high-pressure gas pressurizing machine, an outlet at the lower part of the high-pressure tank is communicated with the fixed end of the pipeline through a first high-pressure hose, and a first pneumatic high-pressure ball valve, a pressure reducing valve, a second pneumatic high-pressure ball valve, a first pressure sensor and a first electromagnetic flowmeter are arranged on the first high-pressure hose; the lower inlet of the high-pressure tank is connected with the water pump through a second high-pressure hose, and a second electromagnetic flowmeter is arranged on the second high-pressure hose; an inlet at the upper part of the high-pressure tank is connected with a high-pressure gas charging machine through a third high-pressure hose;
the pressure relief assembly comprises a high-strength connecting pipe, one end of the high-strength connecting pipe is communicated with the throwing end of the pipeline, and the other end of the high-strength connecting pipe is bent by 90 degrees and connected with a rupture disk;
the data acquisition assembly comprises a first high-speed camera, a first non-contact three-dimensional strain optical measurement system, a second high-speed camera, a second non-contact three-dimensional strain optical measurement system, a dynamic acquisition instrument and a computer terminal; the first high-speed camera and the first non-contact three-dimensional strain optical measurement system are arranged right in front of the pipeline, and the second high-speed camera and the second non-contact three-dimensional strain optical measurement system are arranged right above the pipeline;
the pipeline is respectively provided with a plurality of mark points which face the outer surfaces of the first non-contact three-dimensional strain optical measurement system and the second non-contact three-dimensional strain optical measurement system and are arranged at intervals along the axial direction of the pipeline;
the first pneumatic high-pressure ball valve, the second pneumatic high-pressure ball valve, the first pressure sensor, the first electromagnetic flowmeter, the second electromagnetic flowmeter, the first high-speed camera, the second high-speed camera, the first non-contact three-dimensional strain optical measurement system and the second non-contact three-dimensional strain optical measurement system are respectively connected with the dynamic acquisition instrument and the computer terminal through signal lines.
2. The device for testing the transient whip behavior of the charging pipeline according to claim 1, wherein: the high-pressure tank is also provided with a third pressure sensor, a pressure controller and a safety valve; the third pressure sensor and the pressure controller are respectively connected with the computer terminal through signal lines, and the pressure controller is respectively connected with the high-pressure gas pressurizing machine and the water pump.
3. The device for testing the transient whip behavior of the charging pipeline according to claim 1, wherein: the high-strength connecting pipe is also connected with a second pressure sensor, and the second pressure sensor is connected with the dynamic acquisition instrument through a signal line.
4. The device for testing the transient whip behavior of the charging pipeline according to claim 1, wherein: the rupture disk is fixed on the flange; the flange includes first ring flange and second ring flange, and first ring flange is connected on the pipeline, and first ring flange passes through the bolt to be connected with the second ring flange, and the rupture disk centre gripping is between first ring flange and second ring flange, and between first ring flange and rupture disk to and all be provided with the gasket between second ring flange and the rupture disk.
5. The device for testing the transient whip behavior of the charging pipeline according to claim 1, wherein: the first pressure sensor, the first electromagnetic flowmeter and the second electromagnetic flowmeter are respectively connected with a dynamic acquisition instrument through signal lines, and the dynamic acquisition instrument is connected with a computer terminal; the first pneumatic high-pressure ball valve, the second pneumatic high-pressure ball valve, the first non-contact three-dimensional strain optical measurement system, the second non-contact three-dimensional strain optical measurement system, the first high-speed camera and the second high-speed camera are respectively connected with the computer terminal through signal lines.
6. The device for testing the transient whip behavior of the charging pipeline according to claim 1, wherein: first high-pressure hose is linked together through seal assembly and pipeline, seal assembly includes 1 cutting ferrule female head, 1 steel snap ring and 1 cutting ferrule public head.
7. The device for testing the transient whip behavior of the charging pipeline according to claim 1, wherein: the base comprises a fixed seat and a pressing block, strip-shaped grooves with semicircular sections are formed in the center of the bottom of the pressing block and the center of the top of the fixed seat, the pressing block is fixedly connected with the fixed seat through a bolt, and after the pressing block is connected with the fixed seat, the two strip-shaped grooves are spliced to form a pipeline hole for a pipeline to pass through; the fixed seat is fixed on the rigid floor through a bolt.
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