NL2020322A - A kind of test system for testing the life of pipeline elbow with variable parameters - Google Patents

A kind of test system for testing the life of pipeline elbow with variable parameters Download PDF

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Publication number
NL2020322A
NL2020322A NL2020322A NL2020322A NL2020322A NL 2020322 A NL2020322 A NL 2020322A NL 2020322 A NL2020322 A NL 2020322A NL 2020322 A NL2020322 A NL 2020322A NL 2020322 A NL2020322 A NL 2020322A
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Netherlands
Prior art keywords
pipeline
test platform
elbow
ring bracket
testing
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NL2020322A
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Dutch (nl)
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NL2020322B1 (en
Inventor
Junfu Zhang
Zhong Wen
Lei Ma
Hao Li
Qinggong Zhang
Yang Yin
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Univ Xihua
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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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

This invention discloses a test system for testing the life of pipe elbow with variable parameters, which belongs to the technical field for simulating the wear test of pipe joint. The invention includes a frame, a liquid tank, a hydraulic pump, a speed measuring device, a ring bracket, a disc test platform and a plurality of fixtures. The ring bracket is arranged vertically and its bottom is fixed onto the frame by the fixing rod. The circular hole diameter of the ring bracket is equivalent to the outer diameter of the disc test platform. The disc test platform is fitted into the circular hole of the ring bracket and the end face of the disk test platform is perpendicular with the ring surface of the ring bracket. The disc test platform is fixed to the ring bracket by the two sets of dismountable guide rails which are oppositely set on the sides of the disc test platform. Due to the reasonable structure and convenience for performing measurement, this invention can solve the problems such as how to choose the elbow pipe as far as the tortuosity is concerned, how to set the angle of inclination when the elbow is arranged, in the current technology, etc., so as to choose the best setting scheme and to improve the service life of the pipe.

Description

Field of the Invention
This invention belongs to the technical field for simulating the wear test of pipeline connector, particularly related to a kind of test system for testing the life of pipeline elbow with variable parameters.
Background of the Invention
During drilling, the mortar need be removed through the pipeline. Pipelines made of different materials have different tortuosity and the tortuosity of pipelines has an impact on the life of the pipeline, so it is very important to choose suitable pipelines. At the same time, in the transportation of other liquid, the pipeline wear cannot be ignored also. In view of this problem, the applicant of this invention has researched and developed a kind of test system for testing the life of pipeline elbow with variable parameters. The tester of this invention can be installed on the pipelines made of different materials to change the included angle at the pipeline joints, so as to find the most suitable pipelines for transportation of different liquid.
Summary of the Invention
In view of above-mentioned technical defects, this invention is intended to provide a abrasion tester which can control the included angle at the pipeline joints to simulate different bending angles of flexible pipelines, and can simulate the pipeline connectors, for examples, straight connector, right-angle connector, three-way connector, etc., for different types of hard pipelines.
Therefore, this invention adopts the following technical solution, i.e. a kind of test system for testing the life of pipeline elbow with variable parameters and it is characterized by that this system includes the frame, liquid tank, hydraulic pump, speed measuring device, ring bracket, disc test platform and a plurality of fixtures. The mentioned ring bracket is arranged vertically and its bottom is fixed onto the frame by the fixing rod. The circular hole diameter of the ring bracket is equivalent to the outer diameter of the disc test platform. The disc test platform is fitted into the circular hole of the ring bracket and the end face of the disk test platform is perpendicular with the ring
AO 18.01.1057 NL surface of the ring bracket. The disc test platform is fixed to the ring bracket by the two sets of dismountable guide rails which are oppositely set on the sides of the disc test platform.
The top surface of the mentioned disc test platform is provided with the round chute for installing the mentioned fixtures. Two, three or four fixtures are set as a group. The fixtures include a sliding block and two V-type pressing blocks. The two V-type pressing blocks are arranged oppositely and are fixed by the screws. The two V-type pressing blocks interwork and form a gripping cavity for fixing the pipeline. The lower V-type pressing block is connected to the sliding block by the fixing rod and the sliding block is located in the mentioned round chute. The sliding block nestles against the top surface of disc test platform through the nut set on the fixing rod to fasten or loosen the sliding block. The setting between all fixtures needs to test the elbow. The elbow connects the pipeline gripped in the gripping cavity to form a pipeline path. The mentioned liquid tank is installed on the bottom of frame and the liquid tank is connected with the hydraulic pump. The medium in the liquid tank is extracted by the hydraulic pump. The hydraulic pump is connected with the pipeline of one of the fixtures by the pipeline. The speed measuring device is set on the mentioned pipeline section. The pipelines of other fixtures return to the liquid tank through the returning pipeline. The hydraulic pump and the speed measuring device are controlled by the computer. The speed measuring device is used to measure the liquid velocity before it flows into the test platform. The impact force of the liquid can be calculated by the computer. Therefore, in combination with the observed pipeline wear, the relationship between the impact force of liquid and the wear can be confirmed.
As a supplement and an improvement for the above-described technical solution, this invention also includes the following technical features.
The pipeline which is connected out by the hydraulic pump is fixed on the frame by the pressing block. This section of pipeline is provided with a filter to filter the medium.
The cross profile of round chute is trapezoid, the sliding block is the trapezoid sliding block which assorts with the trapezoid chute, and the round chute is established with an
AO 18.01.1057 NL opening mouth for installing and replacing trapezoid chute.
The disc test platform located near the mentioned round chute is provided with a dial gauge on the top surface, for studying the effect of pipeline tortuosity on the pipeline wear through moving the fixture.
The mentioned ring bracket is provided with a dial gauge for studying the effect of the angle of inclination on the pipeline wear.
The mentioned elbow is a two-way connector or three-way connector or four-way connector.
The following beneficial effects can be achieved by using the tester of this invention. In this invention, the position between the fixtures is adjusted to perform installation testing for elbows with different tortuosity, so as to accommodate to the testing for elbows with various tortuosity or different types of the elbows (two-way connector or three-way connector or four-way connector). In this invention, the testing for the effect of the inclination angle of the elbow on the pipeline wear can be achieved by setting the disc test platform on the ring bracket. Due to the reasonable structure and convenience for performing measurement, this invention can solve the problems such as how to choose the elbow pipeline as far as the tortuosity is concerned, how to set the angle of inclination when the elbow is arranged, in the current technology, etc., so as to choose the best setting scheme and to improve the service life of the pipeline.
Description of Drawings
Drawing 1 is the structural schematic diagram of this invention.
Drawing 2 is the dissected schematic diagram of three-dimensional structure of disc test platform of this invention.
Drawing 3 is the diagram of controlling connection relationship of this invention.
AO 18.01.1057 NL
Particular Embodiments
Next, the technical solution in the particular embodiments of this invention will be described clearly and completely by combining the drawings in the particular embodiments. Certainly, the described embodiments are merely a part of the embodiments of this invention and it is not intended to be exhaustive. Based on the embodiments of this invention, all other embodiments obtained by ordinary persons skilled in the art on the premise of no creative work, should be within the scope of claim of this invention.
As shown in drawings 1, 2 and 3, this invention includes the frame (1), liquid tank (2), hydraulic pump (3), ring bracket (5), disc test platform (6) and a plurality of fixtures. The ring bracket (5) is arranged vertically and its bottom is fixed onto the frame (1) by the fixing rod. The circular hole diameter of the ring bracket (5) is equivalent to the outer diameter of the disc test platform (6). The disc test platform (6) is fitted into the circular hole of the ring bracket (5) and the end face of the disk test platform (6) is perpendicular with the ring surface of the ring bracket (5). The disc test platform (6) is fixed to the ring bracket (5) by the two sets of dismountable guide rails which are oppositely set on the sides of the disc test platform (6). The top surface of the mentioned disc test platform (6) is provided with the round chute (7) for installing the mentioned fixtures. Two, three or four fixtures are set as a group. The fixtures include a sliding block (12) and two V-type pressing blocks (11). The two V-type pressing blocks (11) are arranged oppositely and are fixed by the screws. The two V-type pressing blocks (11) interwork and form a gripping cavity for fixing the pipeline. The lower V-type pressing block is connected to the sliding block (12) by the fixing rod and the sliding block (12) is located in the mentioned round chute (7). The sliding block (12) nestles against the top surface of disc test platform (6) through the nut set on the fixing rod to fasten or loosen the sliding block. The setting between all fixtures needs to test the elbow (8) which is a two-way connector or three-way connector or four-way connector. The elbow (8) connects the pipeline gripped in the gripping cavity to form a pipeline path. The liquid tank (2) is installed on the bottom of frame (1) and the liquid tank (2) is connected with the hydraulic pump (3). The medium in the liquid tank (2) is extracted by the hydraulic pump (3). The hydraulic pump (3) is connected with the pipeline of one of the fixtures by the pipeline and the pipelines of other fixtures return to the liquid
AO 18.01.1057 NL tank (2) through the returning pipeline. Moreover, the pipeline wear tester also includes the speed measuring device (4) which is set on the pipeline. The pipeline which is connected out by the hydraulic pump (3) is fixed on the frame (1) by the pressing block. This section of pipeline is provided with a filter (10) to filter the medium. The hydraulic pump and its flow are controlled by the mentioned computer-control system to control the liquid velocity. The speed measuring device is used to measure the liquid velocity before it flows into the disc test platform. The impact force of the liquid can be calculated by the computer. Therefore, in combination with the observed pipeline wear, the relationship between the impact force of liquid and the wear can be confirmed.
As preferred, the cross profile of round chute (7) is trapezoid, the sliding block (12) is the trapezoid sliding block which assorts with the trapezoid chute, and the round chute (7) is established with the opening mouth (9) for installing and replacing trapezoid chute.
As preferred, the disc test platform (6) located near the mentioned round chute (7) is provided with a dial gauge on the top surface, for studying the effect of pipeline tortuosity on the pipeline wear through moving the fixture. The ring bracket (5) is provided with a dial gauge for studying the effect of the angle of inclination on the pipeline wear.
As preferred, the flow of the hydraulic pump (3) is controlled by the computer. The speed measuring device (4) can measure the liquid velocity before the liquid flows into the test platform. The impact force of the liquid can be calculated by the computer. Therefore, in combination with the observed pipeline wear, the relationship between the impact force of liquid and the wear can be confirmed.
In this invention, the flow of the hydraulic pump is controlled by the computer in the test, so as to control the liquid velocity. The liquid velocity before the liquid flows into the test platform is measured by the speed measuring device and the impact force of the liquid can be calculated by the computer. In this invention, the angle of bending of the flexible pipeline can be changed by adjusting and fastening the disc test platform and the dimensional position of the flexible pipeline also can be adjusted. If the sample is a
AO 18.01.1057 NL hard pipeline, the fixture can be adjusted according to the angle of the hard pipeline elbow, so as to grip the bending sample onto the disc test platform, so the dimensional position of the hard pipeline also can be adjusted. By means of the working statecontrolled computer, on the one hand, the liquid velocity is controlled based on the preset requirement in the test according to the feedback information from the speed measuring device, on the other hand, the radius and the space shape of pipeline elbow is controlled based on the preset requirements. After the test, the pipeline sample is removed and the wear loss is contrasted by weighing the sample. Then the tested pipeline sample is split to observe the wear microstructure and plastic deformation inside the tested pipeline sample by means of light microscope and scanning electron microscope (SEM).
Above contents describes the basic principles, the main features and the advantages of this invention. Persons skilled in the art should know that this invention is not limited to the above-described embodiments, and that the above-described embodiments and the contents in this description just state the principles of this invention.
On the premise without departing from the spirit and scope of this invention, various changes and modifications will be performed for this invention and they shall fall within the scope of the invention as claimed. The claimed protection scope of this invention should be defined by the appended claims and their equivalents.
AO 18.01.1057 NL

Claims (5)

ConclusiesConclusions L Ben soort testsysteem voor het testen van de levensduur van een pijpleidingelleboog met variabele parameters, met het kenmerk dat pijpleidingL A type of test system for testing the service life of a pipeline elbow with variable parameters, characterized in that pipeline 5 slijtagetester, snelheidsmeetinrichting (4) en computerbesturmgssysteem zijn opgenomen, de genoemde slijtage tester van pijpleidingen het frame (1), vloeistoftank (2), hydraulische pomp (3), ringbeugel (5), schijf testplatform (6) en meerdere bevestigingen omvat, de genoemde ringbeugel (5) verticaal gerangschikt is en de bodem ervan bevestigd is aan het frame (1) door de bevestigingsstang, de cirkelvormigeWear tester, speed measuring device (4) and computer control system are included, said pipe wear tester comprises the frame (1), liquid tank (2), hydraulic pump (3), ring bracket (5), disk test platform (6) and several fixings, said ring bracket (5) is arranged vertically and its bottom is attached to the frame (1) by the fixing rod, the circular 10 diameter van het gat van de ringbeugel (5) overeenkomt met de buitendiameter van het schijf testplatform (6), het schijf testplatform (6) in het cirkelvormige gat van de ringbeugel (5) is ingepast en het eindvlak van het schijf testpïatform (6) loodrecht staat op het ringoppervlak van de ringbeugel (5), het schijf testplatform (6) is bevestigd aan de ringbeugel (5) door de twee sets demonteerbare geleiderails die tegenover elkaar aan 15 de zijkanten van het schijf testplatform .(6) zijn geplaatst, het bovenoppervlak van het genoemde schijf testplatform (6) is voorzien van de ronde goot (7) voor het installeren van de genoemde bevestigingen waarbij twee, drie of vier bevestigingen als een groep ingesteld worden, de bevestigingen een schuifblok (12) omvatten en twee drukblokken van het type V (11), de twee persblokken (11) van het 20 V-type tegenover elkaar geplaatst zijn en vastgezet zijn door de schroeven, de twee persblokken (11.) van het V-type interageren en een grijpholte vormen voor het bevestigen van de pijpleiding, het onderste drukblok van het V-type door de be\cfogm gelang wrbonden ft met hot glijblok (12) en hei glijblok ( 12) zich bevindt in de genoemde ronde goot (7), het glijdende blok (12) zich vlijt tegen het bovenoppervlak 25 van het schijf testpïatform (6) door de moer set op de bevestigingsstang om het glijblok te bevestigen of los te maken, de elleboog (8) die moet worden getest onder de bevestigingen is geplaatst, waarbij de elleboog (8) de pijpleiding verbindt die in de grijperhoke is gegrepen om een pijpleiding pad te vormen, de genoemde vloeistoftank (2) is geïnstalleerd op de bodem van frame (1) en de vloeistoftank (2) is verbonden met 30 de hydraulische pomp (3), het medium in de vloeistoftank (2) door de hydraulische pomp (3) wordt onttrokken, de hydraulische pomp (3) via de pijpleiding is verbonden met de pijpleiding van één van de bevestigingen en de pijpleidingen van andere bevestigingen terugkeren naar de vloeistoftank (2) door de retour pijpleiding, hetThe diameter of the hole of the ring bracket (5) corresponds to the outer diameter of the disc test platform (6), the disc test platform (6) is fitted in the circular hole of the ring bracket (5) and the end face of the disc test platform (6) ) is perpendicular to the ring surface of the ring bracket (5), the disc test platform (6) is attached to the ring bracket (5) by the two sets of detachable guide rails placed opposite each other on the sides of the disc test platform. (6) , the upper surface of said disk test platform (6) is provided with the round gutter (7) for installing said mounts wherein two, three or four mounts are set as a group, the mounts include a sliding block (12) and two pressure blocks of the type V (11), the two press blocks (11) of the V-type are placed opposite each other and are fixed by the screws, the two press blocks (11.) of the V-type interact and form a gripping cavity n for attaching the pipeline, the lower V-type pressure block is connected by the corresponding tube with the hot sliding block (12) and the sliding block (12) located in said round gutter (7), the sliding block (12) lies against the top surface 25 of the disc test platform (6) by mounting the nut on the mounting rod to attach or release the sliding block, the elbow (8) to be tested is placed under the mountings, the elbow (8) connects the pipeline that is gripped in the grab shed to form a pipeline path, said fluid tank (2) is installed at the bottom of frame (1) and the fluid tank (2) is connected to the hydraulic pump ( 3), the fluid in the liquid tank (2) is withdrawn by the hydraulic pump (3), the hydraulic pump (3) is connected via the pipeline to the pipeline of one of the fixings and the pipelines of other fixings return to the liquid tank (2) by the return pipeline, the AO 18.01.1057 NL snelheidsmeetapparaat (4) ingesteid is op de genoemde pijpleiding, de pijpleiding die is aangesloten door de hydraulische pomp (3) door het persblok op het frame (1) is bevestigd, dit gedeelte van de pijpleiding is voorzien van een filter (10) om het medium te filteren, de hydraulische pomp en de stroom ervan worden bestuurd door hetAO 18.01.1057 NL speed measuring device (4) is inserted on the said pipeline, the pipeline connected by the hydraulic pump (3) is attached to the frame (1) by the pressure block, this part of the pipeline is provided with a filter (10) to filter the medium, the hydraulic pump and its flow are controlled by it 5 genoemde computerbesturingssysteem om de vloeisurfsnelheid te regelen, het. snelheidsmeetapparaat wordt gebruikt om de vloeistofsnelheid te nieten voordat deze in het testplatform van de schijf stroomt, de stootkracht van de vloeistof door de computer kan worden berekend, daarom in combinatie met de waargenomen pijpleiding slijtage de relatie tussen de stootkracht, van de vloeistof en de slijtage kan worden bevestigd,5 to control the flow rate, said computer control system. speed measuring device is used to staple the liquid speed before it flows into the test platform of the disk, the impact force of the liquid can be calculated by the computer, therefore in combination with the observed pipeline wear the relationship between the impact force, of the liquid and the wear can be confirmed, 2. Testsysteem voor het testen van de levensduur van een pijpleiding elleboog met variabele parameters volgens conclusie 1, met het kenmerk dat het dwarsprofiel van de ronde glijgoot (7) trapeziumvormig is, het glijblok (12) het trapezoïde glijblok is dat met de trapeziumglijgoot assorteert en de ronde glijgoot (7) is gevormd met een opening2. Testing system for testing the service life of a variable elbow pipeline according to claim 1, characterized in that the cross section of the round sliding channel (7) is trapezoidal, the sliding block (12) is the trapezoidal sliding block that assortes with the trapezoidal sliding channel and the round sliding channel (7) is formed with an opening 15 in de opening (9) voor het installeren en vervangen van trapeziumglijgoten.15 in the opening (9) for installing and replacing trapezoidal chutes. 3. Testsysteem voor het testen van de levensduur van een pijpleiding elleboog met variabele parameters volgens conclusie 2, met het kenmerk dat het schijf testplatform (6) dat zich bevindt nabij de genoemde ronde glijgoot (7) is voorzien van een kiesmeter3. Testing system for testing the service life of a variable elbow pipeline according to claim 2, characterized in that the disk test platform (6) located near said round chute (7) is provided with a dial gauge 20 op het bovenoppervlak, voor het bestuderen van het effect van pijpleiding kronkeligheid op de pijpleidingslijtage door de bevestiging te bewegen.20 on the upper surface, for studying the effect of pipeline tortuousness on the pipeline wear by moving the mount. 4. Testsysteem voor het testen van de levensduur van een pijpleiding elleboog met variabele parameters volgens conclusie 1, met het kenmerk dat de genoemde ringbeugelTest system for testing the service life of a variable elbow pipeline according to claim 1, characterized in that said ring bracket 25 (5) is voorzien van een kiesmeter voor het bestuderen van het effect van de hellingshoek op de pijpleidingslijtage.25 (5) is provided with a dial gauge for studying the effect of the slope on the pipeline wear. 5. Testsysteem voor het testen van de levensduur van een pijpleiding elleboog met variabele parameters volgens conclusie 4, met het kenmerk dat de genoemde elleboogTest system for testing the service life of a pipeline elbow with variable parameters according to claim 4, characterized in that said elbow 30 (8) een tweewegverbinding of driewegverbinding of vierwegverbinding is.(8) is a two-way connection or three-way connection or four-way connection. AO 18.01.1057 NLAO 18.01.1057 NL 1/21/2
NL2020322A 2017-05-12 2018-01-25 A kind of test system for testing the life of pipeline elbow with variable parameters NL2020322B1 (en)

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CN201710333207.4A CN106996867B (en) 2017-05-12 2017-05-12 A kind of variable element channel bend life-span test system

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CN108896747B (en) * 2018-06-06 2021-03-02 昆明理工大学 PPR pipe life-span verifying attachment
CN109668722B (en) * 2019-02-27 2023-10-13 中辽检测(辽宁)有限公司 Building shock insulation flexible pipe testing machine

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