CN115561108B - Erosion experiment system and method considering high temperature and pipe column buckling - Google Patents
Erosion experiment system and method considering high temperature and pipe column buckling Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The invention relates to the technical field of pipe column erosion experiments, in particular to an erosion experiment system and an erosion experiment method considering high temperature and pipe column buckling. The technical scheme is as follows: the wall thickness measuring guided wave rods are respectively connected to the low-temperature water bath through pipelines, so that the temperature of the wall thickness measuring guided wave rods is in a room temperature range, and the ultrasonic thickness gauge is installed on the outer side of the erosion test module and connected to each group of wall thickness measuring guided wave rods; the upper end of a first high-pressure sealing flange of the erosion testing module is connected with a first heat insulation section, and a sinusoidal buckling pipe column testing section or a spiral buckling pipe column testing section is connected between the first high-pressure sealing flange and a second high-pressure sealing flange. The beneficial effects are that: the device can carry out an experiment of influence of temperature on the erosion of the gas storage injection-production tubular column in the sand reservoir, particularly the erosion of the testing section of the sine buckling tubular column or the testing section of the spiral buckling tubular column, is favorable for clarifying the erosion rules of different tubular column targets at high temperature, and has good application prospect.
Description
Technical Field
The invention relates to the technical field of pipe column erosion experiments, in particular to an erosion experiment system and an experiment method considering high temperature and pipe column buckling.
Background
The flowing working conditions of the injection and production pipe column of the gas storage are complex and changeable, so that the pipe column erosion has strong environmental dependence and numerous influence factors, and the factors possibly have certain interaction, so that the theoretical derivation difficulty of the erosion prediction model under different working conditions is extremely high. In view of the above, the pipe flow erosion experiment system becomes an indispensable research method for realizing erosion prediction and disclosing an erosion mechanism, namely, the establishment of an erosion experience or semi-experience prediction model is realized by constructing an erosion experiment system, developing pipe flow erosion experiments under different working conditions and associating undetermined parameters of properties of solid-phase particles, a particle-containing fluid and a target surface plastic material with wall thickness loss or erosion rate. However, at present, a mature standard and an experimental specification aiming at an erosion experimental system are not formed at home and abroad, different erosion experimental results are mostly suitable for a specific experimental process and an experimental system, so that the erosion rule of the tubular column is not systematically researched, and the unified explanation of the experimental phenomenon and the erosion mechanism under different working conditions is not realized.
The existing erosion experiment system considers the influence relation of temperature on the erosion of the target surface material of the gas storage column less. Chinese patent publication No. CN114577650A discloses a multi-parameter adjustable gas-liquid-solid erosive wear experimental apparatus combining jet flow and pipe flow and a use method thereof, wherein a straight pipe test section and a bent pipe test section are heated by cable heating pipes, that is, the cable heating pipes are wound on the straight pipe test section and the bent test section to heat the pipe wall material of the test sections, so as to consider the influence of temperature on the erosive performance of the material under the pipe flow condition. However, in the experimental process, it is found that the high temperature distribution of the test section cannot be ensured to be uniform and stable based on the form of cable heating, and the stable heating peak value is hardly over 130 ℃, which is significantly lower than the temperature of the reservoir section in the high-temperature gas storage (for example, the reservoir section temperature of the suqiao gas storage reaches about 150 ℃, and the reservoir section temperature of the created cliff 13-1 gas storage is about 178 ℃). In view of this, in order to further approach the field working condition, it is necessary to explore other heating manners to ensure the continuous and stable high-temperature condition of the test section; in addition, the invention only monitors the particle speed in the test pipeline in real time, and does not mention how to obtain the erosion rate of the pipe wall, and the wall thickness loss in the erosion process cannot be measured, so that the real-time measurement of the wall thickness loss of the pipe column under the high-temperature condition needs to be realized by other means.
It should be noted that: the injection-production pipe column of the on-site gas storage reservoir can simultaneously receive the action of loads such as gravity, piston force, temperature deformation force, bulging deformation force, coulomb friction force, viscous friction force and the like, the pipe column is stressed and deformed complexly, so that the pipe column generates buckling deformation (two deformation forms of sinusoidal buckling and spiral buckling are common), the analysis of the high-temperature erosion law of the buckling pipe column of the gas storage reservoir under a laboratory condition is rarely reported at present, and therefore an erosion experiment system of the buckling pipe column under the high-temperature condition needs to be constructed to develop related experiments urgently.
In addition, the existing gas-liquid-solid erosion experimental system mostly focuses on the erosion influence relationship of solid phase parameters (such as solid phase particle radius, solid phase particle shape, impact velocity of solid phase particles, solid phase particle density, solid phase particle content and the like), gas phase parameters (such as flow velocity, gas components, flow patterns and the like) and column parameters (such as column material, target surface hardness, target surface coating and the like) on the column target surface, and the erosion influence rule generated by the liquid phase parameters (such as droplet particle size, droplet content and the like) is rarely reported at present.
Disclosure of Invention
The invention aims to provide an erosion experimental system and an erosion experimental method considering high temperature and tubular column buckling, wherein the high temperature of a sine buckling tubular column testing section or a spiral buckling tubular column testing section is adjustable through a high-temperature control box, the fast replacement of the sine buckling tubular column testing section and the spiral buckling tubular column testing section is realized through a high-pressure sealing flange plate, the temperature of each group of wall thickness measuring wave guide rods is in a room temperature range at the moment through being connected to a low-temperature water bath, and the content of liquid drops and the particle size of the liquid drops in a gas-liquid-solid mixed fluid are monitored through a laser Doppler velocimeter.
The invention provides an erosion experiment system considering high temperature and tubular column buckling, which adopts the technical scheme that: the device comprises an air compressor, a filtering and drying tank, a buffer tank, a pressure sensor, a PID control valve, an electronic flowmeter, a sand storage tank, an electric screw, a Thomson valve, a water tank, a submersible pump, a liquid flowmeter, an adjustable-flow atomizing nozzle, an atomizing cavity, a high-speed camera and a data acquisition module, wherein the air compressor is connected to the buffer tank through a pipeline and the filtering and drying tank, and the output end of the buffer tank is connected to a gas-solid transparent section at the lower end of the Thomson valve through the pressure sensor, the PID control valve and the electronic flowmeter; the lower end of the sand storage tank is provided with an electric screw, quartz sand in the sand storage tank enters the Thomson valve through the electric screw, and the right end of the gas-solid transparent section is provided with an atomization cavity; the inside of the atomization cavity is provided with an adjustable-flow atomization nozzle, mineralized water in the water tank is connected with the adjustable-flow atomization nozzle through a submersible pump, and the high-speed camera is used for monitoring the erosion experiment condition; the improvement is as follows: the device also comprises a gas-liquid-solid mixed first transparent section, a first heat insulation section, a first high-pressure sealing flange plate, a second high-pressure sealing flange plate, a third high-pressure sealing flange plate, a sine buckling pipe column testing section or a spiral buckling pipe column testing section, a high-temperature control box, a second heat insulation section, a gas-liquid-solid mixed second transparent section, a third heat insulation section, a gas-liquid-solid mixed third transparent section, a gas-liquid-solid recovery hose, a dust removal and sand collection box body, a laser Doppler velocimeter, a wall thickness measurement wave guide rod, an ultrasonic thickness gauge and a low-temperature water bath, wherein the gas-liquid-solid mixed first transparent section, the first heat insulation section and an erosion testing module are sequentially connected below the atomization cavity; the left end of the erosion test module is provided with more than one group of wall thickness measurement wave guide rods, and the wall thickness measurement wave guide rods are respectively connected to the low-temperature water bath through pipelines, so that the temperature of each group of wall thickness measurement wave guide rods is in the room temperature range at any moment; the ultrasonic thickness gauge is arranged on the outer side of the erosion test module and connected to each group of wall thickness measuring waveguide rods;
the erosion test module comprises a first high-pressure seal flange plate, a second high-pressure seal flange plate, a third high-pressure seal flange plate, a sine buckling pipe column test section or a spiral buckling pipe column test section, a high-temperature control box and a vortex bent pipe test section, wherein the upper end of the first high-pressure seal flange plate is connected with the first heat insulation section, and the sine buckling pipe column test section or the spiral buckling pipe column test section is connected between the first high-pressure seal flange plate and the second high-pressure seal flange plate.
Preferably, the wall thickness measurement guided wave rod comprises a welding point of the measuring rod and the test pipeline, the measuring rod, a cooling water inlet, a sealing sleeve right end cover, a cooling water sealing sleeve, a sealing sleeve left end cover, a cooling water outlet and an ultrasonic probe, wherein the cooling water sealing sleeve is sleeved outside the measuring rod, the sealing sleeve left end cover is arranged at the left end of the cooling water sealing sleeve, the sealing sleeve right end cover is arranged at the right end of the cooling water sealing sleeve, the cooling water outlet is arranged on the sealing sleeve left end cover, the cooling water inlet is arranged at the lower end cover of the sealing sleeve right end cover, and the cooling water inlet and the cooling water outlet are respectively connected with a water inlet joint and a water outlet joint in a low-temperature water bath through pipelines so as to realize the cooling of the measuring rod; one end of the measuring rod is welded to the wall thickness monitoring position of the test pipeline through the welding point of the measuring rod and the test pipeline, and the other end of the measuring rod is provided with an ultrasonic probe.
Preferably, foretell wall thickness measurement guided wave pole adopts four groups, measures first guided wave pole, wall thickness including the wall thickness and measures second guided wave pole, wall thickness and measures third guided wave pole and wall thickness and measure fourth guided wave pole, and evenly distributed is in one side of sinusoidal buckling tubular column test section or spiral buckling tubular column test section.
Preferably, the outer end of the third high-pressure sealing flange is connected with a third heat insulation section, and a vortex elbow testing section is installed between the first high-pressure sealing flange and the third high-pressure sealing flange.
Preferably, a high-temperature electric furnace is arranged in the inner cavity of the high-temperature control box, and the temperature peak value in the high-temperature control box can be controlled to be stabilized to 600 ℃; the left side of high temperature control box is provided with the fixed mouth of guided wave pole of rectangular shape, is equipped with the first stationary blade of guided wave pole, guided wave pole second stationary blade, guided wave pole third stationary blade, guided wave pole fourth stationary blade and the fifth stationary blade of guided wave pole in the fixed mouth of guided wave pole in proper order, fixes the first guided wave pole of wall thickness measurement, wall thickness measurement second guided wave pole, wall thickness measurement third guided wave pole and wall thickness measurement fourth guided wave pole.
Preferably, a first stop valve is arranged on a pipeline between the filtering and drying tank and the buffer tank, a second stop valve is arranged on a pipeline between the pressure sensor and the PID control valve, and a third stop valve is arranged on a pipeline between the liquid flow meter and the submersible pump.
Preferably, the data acquisition module comprises an acquisition card, an acquisition conversion box, a data acquisition circuit, data processing software and a computer, wherein the input ends of the data processing software and the computer are connected with the laser doppler velocimeter, the ultrasonic thickness gauge, the high-speed camera, the pressure sensor, the PID control valve and the electronic flowmeter through the acquisition card and the acquisition conversion box; the high-temperature control box realizes the temperature control of a first high-pressure sealing flange, a second high-pressure sealing flange, a third high-pressure sealing flange, a sine buckling pipe column testing section or a spiral buckling pipe column testing section or a vortex bent pipe testing section through an acquisition card, an acquisition and conversion box, data processing software, a computer, a high-temperature electric furnace and a circulating pump; the laser Doppler velocimeter is placed on one side of the first transparent section for gas-liquid-solid mixing and is used for monitoring the content and the particle size of liquid drops in gas-liquid-solid mixing fluid, and the content and the particle size of the liquid drops are adjustable by combining with an adjustable-flow atomizing nozzle; the high-speed camera is used for monitoring the liquid-solid flow rate of the gas-liquid-solid mixed second transparent section or the gas-liquid-solid mixed third transparent section.
The invention provides an experimental method of an erosion experimental system considering high temperature and pipe column buckling, which adopts the technical scheme that: when the erosion of the testing section of the sine buckling pipe column is adopted, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as the pipe column to a wall thickness monitoring position of a testing pipeline of a sine buckling pipe column testing section in a full penetration welding mode;
s2, opening an air compressor, a first stop valve and a second stop valve, adjusting a PID control valve to reach a target gas velocity, starting a high-temperature control box to preheat a test section to a target temperature of 200 ℃, and cooling the position, close to the ultrasonic probe, of each group of wall thickness measuring guided wave rods by means of low-temperature water bath;
s3, installing a welded sine buckling pipe column testing section in the high-temperature control box, filling quartz sand into the sand storage tank, setting the rotation rate of the electric screw according to the target sand inlet flow, opening the Thomson valve and observing the sand discharging condition in the gas-solid transparent section;
s4, after sand feeding is stable, starting the submersible pump and the third stop valve, and adjusting the flow-adjustable atomizing nozzle to achieve the target water mist flow in the atomizing cavity;
s5, observing the first transparent section for gas-liquid-solid mixing by means of a laser Doppler velocimeter to obtain the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw and the flow-adjustable atomizing nozzle until the particle size and the quartz sand content of the liquid drops reach the target value, and monitoring the liquid-solid flow speed in the second transparent section for gas-liquid-solid mixing by a high-speed camera;
s6, enabling mixed fluid to enter a gas-liquid-solid recovery hose through a first heat insulation section, a first high-pressure sealing flange, a sine buckling pipe column testing section, a second high-pressure sealing flange, a second heat insulation section and a gas-liquid-solid mixing second transparent section, recording all sensor data in the erosion process, and collecting ultrasonic signals through a first guide wave rod for measuring wall thickness, a second guide wave rod for measuring wall thickness, a third guide wave rod for measuring wall thickness and a fourth guide wave rod for measuring wall thickness;
and S7, calculating based on the ultrasonic signals, the acquisition card, the acquisition conversion box, the data acquisition circuit, the data processing software and the computer to obtain the wall thickness loss of the pipeline, and disassembling and weighing the testing section of the sine buckling pipe column after the erosion is finished to obtain the mass loss amount of the erosion.
The invention provides an experimental method of an erosion experimental system considering high temperature and pipe column buckling, which adopts the technical scheme that: when the erosion of the test section of the spiral buckling pipe column is adopted, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as the pipe column to a wall thickness monitoring position of a test pipeline of a test section of the spiral buckling pipe column in a full penetration welding mode;
s2, opening an air compressor, a first stop valve and a second stop valve, adjusting a PID control valve to reach a target gas velocity, starting a high-temperature control box to preheat a test section to a target temperature of 200 ℃, and cooling the position, close to the ultrasonic probe, of each group of wall thickness measuring guided wave rods by means of low-temperature water bath;
s3, installing a welded spiral buckling pipe column testing section in the high-temperature control box, filling quartz sand into the sand storage tank, setting the rotation rate of the electric screw according to the target sand inlet flow, opening the Thomson valve and observing the sand discharging condition in the gas-solid transparent section;
s4, after the sand feeding is stable, starting the submersible pump and the third stop valve, and adjusting the flow adjustable atomizing nozzle to achieve the target water mist flow in the atomizing cavity;
s5, observing the first transparent section for gas-liquid-solid mixing by means of a laser Doppler velocimeter to obtain the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw and the flow-adjustable atomizing nozzle until the particle size and the quartz sand content of the liquid drops reach a target value, and monitoring the liquid-solid flow speed in the second transparent section for gas-liquid-solid mixing by a high-speed camera;
s6, enabling mixed fluid to enter a gas-liquid-solid recovery hose through a first heat insulation section, a first high-pressure sealing flange plate, a spiral buckling pipe column testing section, a second high-pressure sealing flange plate, a second heat insulation section and a gas-liquid-solid mixed second transparent section, recording data of all sensors in an erosion process, and collecting ultrasonic signals of a wall thickness measurement wave guide rod from the surface of a buckling position;
and S7, calculating based on the ultrasonic signals, the acquisition card, the acquisition and conversion box, the data acquisition circuit, the data processing software and the computer to obtain the wall thickness loss of the pipeline, and disassembling the test section of the spiral buckling pipe column and weighing after the erosion is finished to obtain the mass loss amount of the erosion.
Compared with the prior art, the invention has the following beneficial effects:
(1) A sine buckling pipe column testing section or a spiral buckling pipe column testing section is installed between a first high-pressure sealing flange and a second high-pressure sealing flange, and the outer end of the first high-pressure sealing flange is connected with a gas-liquid-solid mixing first transparent section at the upper part through a first heat insulation section; the lower end of the second high-pressure sealing flange plate is connected with a gas-liquid-solid mixed second transparent section through a second heat insulation section, the content and the particle size of liquid drops in a liquid phase of a testing section are determined by combining a laser Doppler velocimeter, and a wall thickness measuring waveguide rod is monitored by an ultrasonic thickness meter; in addition, the low-temperature water bath mainly ensures that the temperature moment of the wall thickness measurement wave guide rod is in a room temperature range, prevents high temperature from generating interference on sound wave signals of a test section, and realizes the representation of the erosion rules of the tubular columns in different buckling states;
(2) The invention can carry out the erosion experiment of working conditions of gas-solid, liquid-solid, gas-liquid-solid and the like of a sine buckling pipe column testing section or a spiral buckling pipe column testing section, and the adjustability of the content and the particle size of liquid drops in a liquid phase is realized by adjusting the atomizing nozzle with adjustable flow rate and using a laser Doppler velocimeter in the gas-liquid-solid erosion experiment process; in addition, based on the high-power high-temperature electric furnace in the high-temperature control box, the high-temperature condition in the test section can be adjusted, and the highest temperature can be stabilized to 600 ℃.
Drawings
FIG. 1 is a schematic view of an overall experimental system of the present invention employing sinusoidal buckling pipe string erosion;
FIG. 2 is a schematic view of an overall experimental system of the present invention employing helical buckling pipe string erosion;
FIG. 3 is a schematic view of an overall experimental system of the present invention employing vortex bend erosion;
FIG. 4 is a schematic structural view of a waveguide rod for wall thickness measurement;
FIG. 5 is a perspective view of a high temperature control box;
FIG. 6 is a schematic view of a waveguide rod mounting structure on the side of a high temperature control box;
in the upper diagram: the device comprises an air compressor 1, a filtering and drying tank 2, a first stop valve 3, a buffer tank 4, a pressure sensor 5, a second stop valve 6, a PID control valve 7, an electronic flowmeter 8, a sand storage tank 9, an electric screw 10, a Thomson valve 11, a gas-solid transparent section 12, a water tank 13, mineralized water 14, a submersible pump 15, a third stop valve 16, a liquid flowmeter 17, an adjustable-flow atomizing nozzle 18, an atomizing cavity 19, a gas-liquid-solid mixed first transparent section 20, a gas-liquid-solid mixed first transparent section a first heat insulation section 21, a first high-pressure sealing flange 22, a second high-pressure sealing flange 23, a third high-pressure sealing flange 24, a sine buckling pipe column test section 25, a spiral buckling pipe column test section 26, a high-temperature control box 27, a second heat insulation section 28, a gas-liquid-solid mixed second transparent section 29, a third heat insulation section 30, a gas-liquid-solid mixed third transparent section 31, a gas-liquid-solid recovery hose 32, a dust removal and sand collection box 33, a sand removal and filtration device the device comprises an air outlet pipe 34, a laser Doppler velocimeter 35, a first wall thickness measurement guide rod 36, a second wall thickness measurement guide rod 37, a third wall thickness measurement guide rod 38, a fourth wall thickness measurement guide rod 39, an ultrasonic thickness gauge 40, a high-speed camera 41, an acquisition card and acquisition conversion box 42, a data acquisition circuit 43, data processing software and a computer 44, a high-temperature electric furnace 45, a circulating pump 46, a low-temperature water bath 47, a test pipeline wall thickness monitoring position 48, a welding point 49 of the measurement rod and the test pipeline, a measurement rod 50, a cooling water inlet 51, a right end cover 52 of a sealing sleeve, a cooling water sealing sleeve 53, a left end cover 54 of the sealing sleeve, a cooling water outlet 55, an ultrasonic probe positioning block 56, an ultrasonic probe pressing part 57, an ultrasonic probe 58, a vortex elbow testing section 59, a first low-temperature water bath water outlet joint 60, a first low-temperature water bath water inlet joint 61, the water bath of low temperature second goes out water swivel 62, the water swivel 63 is gone into to low temperature water bath second, the fixed mouth 64 of guided wave pole, the first stationary blade 65 of guided wave pole, guided wave pole second stationary blade 66, guided wave pole third stationary blade 67, guided wave pole fourth stationary blade 68, guided wave pole fifth stationary blade 69.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
Embodiment 1, referring to fig. 1, the erosion experimental system considering high temperature and pipe column buckling according to the present invention includes an air compressor 1, a filtering and drying tank 2, a buffer tank 4, a pressure sensor 5, a PID control valve 7, an electronic flowmeter 8, a sand storage tank 9, an electric screw 10, a thomson valve 11, a water tank 13, a submersible pump 15, a liquid flowmeter 17, an adjustable flow atomizing nozzle 18, an atomizing cavity 19, a high-speed camera 41, and a data acquisition module, where the air compressor 1 is connected to the buffer tank 4 through a pipeline and the filtering and drying tank 2, and an output end of the buffer tank 4 is connected to a gas-solid transparent section 12 at a lower end of the thomson valve 11 through the pressure sensor 5, the PID control valve 7, and the electronic flowmeter 8; the lower end of the sand storage tank 9 is provided with an electric screw 10, quartz sand in the sand storage tank 9 enters a Thomson valve 11 through the electric screw 10, and the right end of the gas-solid transparent section 12 is provided with an atomizing cavity 19; the atomizing cavity 19 is internally provided with an adjustable-flow atomizing nozzle 18, the mineralization water 14 in the water tank 13 is connected with the adjustable-flow atomizing nozzle 18 through a submersible pump 15, and the high-speed camera 41 is used for monitoring the erosion experiment condition; the improvement is as follows: the device also comprises a gas-liquid-solid mixed first transparent section 20, a first heat insulation section 21, a first high-pressure sealing flange 22, a second high-pressure sealing flange 23, a third high-pressure sealing flange 24, a sine bending pipe column testing section 25 or a spiral bending pipe column testing section 26, a high-temperature control box 27, a second heat insulation section 28, a gas-liquid-solid mixed second transparent section 29, a third heat insulation section 30, a gas-liquid-solid mixed third transparent section 31, a gas-liquid-solid recovery hose 32, a dedusting and sand collecting box 33, a laser Doppler velocimeter 35, a wall thickness measuring guide rod, an ultrasonic thickness gauge 40 and a low-temperature water bath 47, wherein the gas-liquid-solid mixed first transparent section 20, the first heat insulation section 21 and an erosion testing module are sequentially connected below the atomizing cavity 19, the lower end of the erosion testing module is connected to the dedusting and sand collecting box 33 through the second heat insulation section 28, the gas-liquid-solid mixed second transparent section 29 and the gas-liquid-solid recovery hose 32, an air outlet 34 is arranged on the dedusting and sand collecting box 33, and the right end of the erosion testing module is connected to the gas-liquid-solid mixed third heat insulation section 30 and third heat insulation section 31 through the gas-liquid-solid mixed heat insulation section 32; the left end of the erosion test module is provided with more than one group of wall thickness measurement wave guide rods, the wall thickness measurement wave guide rods are respectively connected to the low-temperature water bath 47 through pipelines, the temperature of each group of wall thickness measurement wave guide rods is in a room temperature range at any moment, and the ultrasonic thickness gauge 40 is installed on the outer side of the erosion test module and connected to each group of wall thickness measurement wave guide rods;
referring to fig. 5, the erosion test module provided by the invention comprises a first high-pressure seal flange 22, a second high-pressure seal flange 23, a third high-pressure seal flange 24, a sinusoidal buckling pipe column test section 25 or a spiral buckling pipe column test section 26, a high-temperature control box 27 and a vortex elbow test section 59, wherein the upper end of the first high-pressure seal flange 22 is connected with the first insulation section 21, the sinusoidal buckling pipe column test section 25 is connected between the first high-pressure seal flange 22 and the second high-pressure seal flange 23, and a valve of the third high-pressure seal flange 24 is closed.
Referring to fig. 4, the wall thickness measurement guided wave rod of the present invention includes a welding point 49 of the measuring rod and the test pipe, a measuring rod 50, a cooling water inlet 51, a sealing sleeve right end cap 52, a cooling water sealing sleeve 53, a sealing sleeve left end cap 54, a cooling water outlet 55, and an ultrasonic probe 58, wherein the cooling water sealing sleeve 53 is sleeved outside the measuring rod 50, the sealing sleeve left end cap 54 is arranged at the left end of the cooling water sealing sleeve 53, the sealing sleeve right end cap 52 is arranged at the right end, the cooling water outlet 55 is arranged on the sealing sleeve left end cap 54, the cooling water inlet 51 is arranged at the lower end cap of the sealing sleeve right end cap 52,
the cooling water inlet 51 and the cooling water outlet 55 of the first wall thickness measuring guide rod 36 and the second wall thickness measuring guide rod 37 are respectively connected with the first low-temperature water bath water outlet connector 60 and the first low-temperature water bath water inlet connector 61 in the low-temperature water bath 47 through pipelines, and the cooling water inlet 51 and the cooling water outlet 55 of the third wall thickness measuring guide rod 38 and the fourth wall thickness measuring guide rod 39 are respectively connected with the second low-temperature water bath water outlet connector 62 and the second low-temperature water bath water inlet connector 63 in the low-temperature water bath 47 through pipelines so as to realize the cooling of the measuring rod 50; one end of the measuring rod 50 is welded to a wall thickness monitoring position 48 of the test pipeline through a welding point 49 of the measuring rod and the test pipeline, and the other end of the measuring rod is provided with an ultrasonic probe 58 through an ultrasonic probe positioning block 56 and an ultrasonic probe pressing piece 57.
Preferably, the wall thickness measuring waveguide rods are four groups, and comprise a first wall thickness measuring waveguide rod 36, a second wall thickness measuring waveguide rod 37, a third wall thickness measuring waveguide rod 38 and a fourth wall thickness measuring waveguide rod 39 which are uniformly distributed on one side of the sinusoidal buckling pipe column testing section 25 or the spiral buckling pipe column testing section 26.
Preferably, the outer end of the third high-pressure sealing flange 24 is connected to the third adiabatic section 30, and a scroll elbow test section 59 is installed between the first high-pressure sealing flange 22 and the third high-pressure sealing flange 24.
Referring to fig. 5 and 6, the inner cavity of the high-temperature control box 27 of the invention is provided with a high-temperature electric furnace 45, and the temperature peak value in the high-temperature control box 27 can be controlled to be stabilized to 600 ℃; the left side of high temperature control box 27 is provided with the fixed mouth 64 of the guided wave pole of rectangular shape, is equipped with the first stationary blade 65 of guided wave pole, guided wave pole second stationary blade 66, guided wave pole third stationary blade 67, guided wave pole fourth stationary blade 68 and the fifth stationary blade 69 of guided wave pole in the fixed mouth 64 of guided wave pole in proper order, fixes the first guided wave pole 36 of wall thickness measurement, wall thickness measurement second guided wave pole 37, wall thickness measurement third guided wave pole 38 and wall thickness measurement fourth guided wave pole 39.
Preferably, a first stop valve 3 is arranged on a pipeline between the filtering and drying tank 2 and the buffer tank 4, a second stop valve 6 is arranged on a pipeline between the pressure sensor 5 and the PID control valve 7, and a third stop valve 16 is arranged on a pipeline between the liquid flow meter 17 and the submersible pump 15.
Referring to fig. 1, the data acquisition module of the present invention comprises an acquisition card and acquisition conversion box 42, a data acquisition circuit 43, data processing software and a computer 44, wherein the input end of the data processing software and the computer 44 is connected to a laser doppler velocimeter 35, an ultrasonic thickness gauge 40, a high-speed camera 41, a pressure sensor 5, a PID control valve 7 and an electronic flowmeter 8 through the acquisition card and acquisition conversion box 42; the high-temperature control box 27 controls the temperature of the first high-pressure sealing flange 22, the second high-pressure sealing flange 23, the third high-pressure sealing flange 24, the sinusoidal buckling pipe column testing section 25 or the spiral buckling pipe column testing section 26 or the vortex bending pipe testing section 59 through the acquisition card and acquisition conversion box 42, the data processing software and computer 44, the high-temperature electric furnace 45 and the circulating pump 46; the laser Doppler velocimeter 35 is arranged on one side of the gas-liquid-solid mixed first transparent section 20 and is used for monitoring the content and the particle size of liquid drops in gas-liquid-solid mixed fluid and realizing the adjustment of the content and the particle size of the liquid drops by combining with the flow-adjustable atomizing nozzle 18; the high-speed camera 41 is used for monitoring the liquid-solid flow rate of the gas-liquid-solid mixed second transparent section 29 or the gas-liquid-solid mixed third transparent section 31.
The invention provides an experimental method of an erosion experimental system considering high temperature and pipe column buckling, which adopts the technical scheme that: when the sinusoidal buckling tubular column test section 25 is adopted for erosion, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as the pipe column to a wall thickness monitoring position 48 of a testing pipeline of a sinusoidal buckling pipe column testing section 25 in a full penetration welding mode;
s2, opening the air compressor 1, the first stop valve 3 and the second stop valve 6, adjusting the PID control valve 7 to reach a target gas velocity, starting the high-temperature control box 27 to preheat the test section to a target temperature of 200 ℃, and simultaneously cooling the position of each group of wall thickness measuring guided wave rods close to the ultrasonic probe 58 by means of the low-temperature water bath 47;
s3, installing a welded sine buckling pipe column testing section 25 in a high-temperature control box 27, filling quartz sand into a sand storage tank 9, setting the rotation rate of an electric screw 10 according to the target sand inlet flow, opening a Thomson valve 11 and observing the sand discharging condition in a gas-solid transparent section 12;
s4, after the sand feeding is stable, starting the submersible pump 15 and the third stop valve 16, and adjusting the flow adjustable atomizing nozzle 18 to achieve the target water mist flow in the atomizing cavity 19;
s5, observing the gas-liquid-solid mixed first transparent section 20 by means of a laser Doppler velocimeter 35, obtaining the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw 10 and the flow-adjustable atomizing nozzle 18 until the target particle size and quartz sand content of the liquid drops are reached, and monitoring the liquid-solid flow speed in the gas-liquid-solid mixed second transparent section 29 by a high-speed camera 41;
s6, mixed fluid enters a gas-liquid-solid recovery hose 32 through a first insulation section 21, a first high-pressure sealing flange plate 22, a sinusoidal buckling pipe column testing section 25, a second high-pressure sealing flange plate 23, a second insulation section 28 and a gas-liquid-solid mixed second transparent section 29, all sensor data are recorded in the erosion process, and ultrasonic signals are collected through a first wall thickness measuring guide rod 36, a second wall thickness measuring guide rod 37, a third wall thickness measuring guide rod 38 and a fourth wall thickness measuring guide rod 39;
and S7, calculating to obtain the wall thickness loss of the pipeline based on an ultrasonic signal, an acquisition card and acquisition conversion box 42, a data acquisition circuit 43, data processing software and a computer 44, and disassembling and weighing the testing section 25 of the sinusoidal buckling pipe column after the erosion is finished to obtain the mass loss amount of the erosion.
Embodiment 2, referring to fig. 2, the erosion experimental system considering high temperature and pipe column buckling according to the present invention includes an air compressor 1, a filtering and drying tank 2, a buffer tank 4, a pressure sensor 5, a PID control valve 7, an electronic flow meter 8, a sand storage tank 9, an electric screw 10, a thomson valve 11, a water tank 13, a submersible pump 15, a liquid flow meter 17, a flow-adjustable atomizing nozzle 18, an atomizing cavity 19, a high-speed camera 41, and a data acquisition module, wherein the air compressor 1 is connected to the buffer tank 4 through a pipeline and the filtering and drying tank 2, and an output end of the buffer tank 4 is connected to a gas-solid transparent section 12 at a lower end of the thomson valve 11 through the pressure sensor 5, the PID control valve 7, and the electronic flow meter 8; the lower end of the sand storage tank 9 is provided with an electric screw 10, quartz sand in the sand storage tank 9 enters a Thomson valve 11 through the electric screw 10, and the right end of the gas-solid transparent section 12 is provided with an atomizing cavity 19; an adjustable-flow atomizing nozzle 18 is arranged in the atomizing cavity 19, mineralized water 14 in the water tank 13 is connected with the adjustable-flow atomizing nozzle 18 through a submersible pump 15, and a high-speed camera 41 is used for monitoring the erosion experiment condition; the improvement is as follows: the device also comprises a gas-liquid-solid mixed first transparent section 20, a first heat insulation section 21, a first high-pressure sealing flange 22, a second high-pressure sealing flange 23, a third high-pressure sealing flange 24, a sine bending pipe column testing section 25 or a spiral bending pipe column testing section 26, a high-temperature control box 27, a second heat insulation section 28, a gas-liquid-solid mixed second transparent section 29, a third heat insulation section 30, a gas-liquid-solid mixed third transparent section 31, a gas-liquid-solid recovery hose 32, a dedusting and sand collecting box 33, a laser Doppler velocimeter 35, a wall thickness measuring guide rod, an ultrasonic thickness gauge 40 and a low-temperature water bath 47, wherein the lower part of the atomization cavity 19 is sequentially connected with the gas-liquid-solid mixed first transparent section 20, the first heat insulation section 21 and an erosion testing module, the lower end of the erosion testing module is connected to the dedusting and sand collecting box 33 through the second heat insulation section 28, the gas-liquid-solid mixed second transparent section 29 and the gas-liquid-solid recovery hose 32, and the right end of the erosion testing module is connected to the gas-liquid-solid mixed third heat insulation section 30, the gas-liquid-solid mixed third heat insulation section 31 and solid recovery hose 31; the left end of the erosion testing module is provided with more than one group of wall thickness measuring guided wave rods, the wall thickness measuring guided wave rods are respectively connected to the low-temperature water bath 47 through pipelines, the temperature of each group of wall thickness measuring guided wave rods is in a room temperature range at any time, and the ultrasonic thickness gauge 40 is installed on the outer side of the erosion testing module and connected to each group of wall thickness measuring guided wave rods;
the difference from the embodiment 1 is that:
the erosion test module comprises a first high-pressure sealing flange 22, a second high-pressure sealing flange 23, a third high-pressure sealing flange 24, a spiral buckling pipe column test section 26 and a high-temperature control box 27, wherein the upper end of the first high-pressure sealing flange 22 is connected with the first insulation section 21, the spiral buckling pipe column test section 26 is connected between the first high-pressure sealing flange 22 and the second high-pressure sealing flange 23, and a valve of the third high-pressure sealing flange 24 is closed.
The invention provides an experimental method of an erosion experimental system considering high temperature and pipe column buckling, which adopts the technical scheme that: when the helical buckling string test section 26 is adopted for erosion, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as the tubular column to a test pipeline wall thickness monitoring position 48 of a spiral buckling tubular column test section 26 in a full penetration mode;
s2, opening the air compressor 1, the first stop valve 3 and the second stop valve 6, adjusting the PID control valve 7 to reach a target gas velocity, starting the high-temperature control box 27 to preheat the test section to a target temperature of 200 ℃, and cooling the position, close to the ultrasonic probe 58, of each group of wall thickness measuring wave guide rods by means of the low-temperature water bath 47;
s3, installing a welded spiral buckling pipe column testing section 26 in a high-temperature control box 27, filling quartz sand into a sand storage tank 9, setting the rotation speed of an electric screw 10 according to the target sand inlet flow, opening a Thomson valve 11 and observing the sand discharging condition in a gas-solid transparent section 12;
s4, after the sand feeding is stable, starting the submersible pump 15 and the third stop valve 16, and adjusting the flow adjustable atomizing nozzle 18 to achieve the target water mist flow in the atomizing cavity 19;
s5, observing the gas-liquid-solid mixed first transparent section 20 by means of a laser Doppler velocimeter 35, obtaining the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw 10 and the flow-adjustable atomizing nozzle 18 until the target particle size and quartz sand content of the liquid drops are reached, and monitoring the liquid-solid flow speed in the gas-liquid-solid mixed second transparent section 29 by a high-speed camera 41;
s6, the mixed fluid enters a gas-liquid-solid recovery hose 32 through a first heat insulation section 21, a first high-pressure sealing flange 22, a spiral buckling pipe column testing section 26, a second high-pressure sealing flange 23, a second heat insulation section 28 and a gas-liquid-solid mixing second transparent section 29, all sensor data are recorded in the erosion process, and ultrasonic signals of a wall thickness measuring wave guide rod from the surface of a buckling position are collected;
and S7, calculating to obtain the wall thickness loss of the pipeline based on the ultrasonic signal, the acquisition card and the acquisition and conversion box 42, the data acquisition circuit 43, the data processing software and the computer 44, and disassembling the test section 26 of the spiral buckling pipe column and weighing after the erosion is finished to obtain the mass loss amount of the erosion.
Example 3, referring to fig. 3, the difference between the erosion experimental system considering high temperature and pipe column buckling and the example 1 or 2 is that:
the erosion test module comprises a first high-pressure sealing flange plate 22, a second high-pressure sealing flange plate 23, a third high-pressure sealing flange plate 24, a vortex bent pipe test section 59 and a high-temperature control box 27, wherein the upper end of the first high-pressure sealing flange plate 22 is connected with the first insulation section 21, the vortex bent pipe test section 59 is connected between the first high-pressure sealing flange plate 22 and the third high-pressure sealing flange plate 24, and a valve of the second high-pressure sealing flange plate 23 is closed.
The invention provides an experimental method of an erosion experimental system considering high temperature and pipe column buckling, which adopts the technical scheme that: when the vortex elbow test section 59 is adopted for erosion, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as a pipe column to a wall thickness monitoring position 48 of a test pipeline of a vortex elbow test section 59 in a full penetration welding mode;
s2, opening the air compressor 1, the first stop valve 3 and the second stop valve 6, adjusting the PID control valve 7 to reach a target gas velocity, starting the high-temperature control box 27 to preheat the test section to a target temperature of 200 ℃, and cooling the position, close to the ultrasonic probe 58, of each group of wall thickness measuring wave guide rods by means of the low-temperature water bath 47;
s3, installing a welded vortex bent pipe testing section 59 in the high-temperature control box 27, installing the vortex bent pipe testing section between the first high-pressure sealing flange plate 22 and the third high-pressure sealing flange plate 24, then filling quartz sand into the sand storage tank 9, setting the rotation speed of the electric screw 10 according to the target sand inlet flow, opening the Thomson valve 11 and observing the sand discharge condition in the gas-solid transparent section 12;
s4, waiting for stable sand feeding, starting the submersible pump 15 and the third stop valve 16, and adjusting the flow adjustable atomizing nozzle 18 to reach the target water mist flow in the atomizing cavity 19;
s5, observing the gas-liquid-solid mixed first transparent section 20 by means of a laser Doppler velocimeter 35, obtaining the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw 10 and the flow-adjustable atomizing nozzle 18 until the target particle size and quartz sand content of the liquid drops are reached, and monitoring the liquid-solid flow speed in the gas-liquid-solid mixed third transparent section 31 by a high-speed camera 41;
s6, the mixed fluid enters a gas-liquid-solid recovery hose 32 through a first insulation section 21, a first high-pressure sealing flange 22, a vortex elbow testing section 59, a third high-pressure sealing flange 24, a third insulation section 30 and a gas-liquid-solid mixed third transparent section 31, all sensor data are recorded in the erosion process, and ultrasonic signals are collected through a wall thickness measuring first guide rod 36, a wall thickness measuring second guide rod 37, a wall thickness measuring third guide rod 38 and a wall thickness measuring fourth guide rod 39;
and S7, calculating to obtain the wall thickness loss of the pipeline based on the ultrasonic signal, the acquisition card and acquisition conversion box 42, the data acquisition circuit 43, the data processing software and the computer 44, and disassembling and weighing the test section 59 of the vortex elbow after the erosion is finished to obtain the mass loss amount of the erosion.
In the embodiment, a vortex elbow testing section 59 is mainly arranged between a first high-pressure sealing flange plate 22 and a third high-pressure sealing flange plate 24, and the outer end of the first high-pressure sealing flange plate 22 is connected with a first insulation section 21 and connected with an upper gas-liquid-solid mixing first transparent section 20; the right end of the third high-pressure sealing flange plate 24 is connected with a gas-liquid-solid mixing third transparent section 31 through a third heat insulation section 30, the gas-liquid-solid mixing first transparent section 20 is monitored by means of a laser Doppler velocimeter 35, the gas-liquid-solid mixing third transparent section 31 is monitored by means of a high-speed camera 41, and the average value of the migration speeds of solid phase sand grains and liquid drops in the two monitoring methods is taken as the migration speed of solid-liquid two phases in the vortex elbow testing section 59 in the erosion process. Since the laser doppler velocimeter 35 can not only obtain the running speeds of the solid-phase particles and the liquid-phase droplets, but also monitor the particle size distribution of the liquid-phase droplets, the content and the particle size of the liquid droplets in the liquid phase are determined by combining the laser doppler velocimeter 35, and the wall thickness measurement waveguide rod is monitored by the ultrasonic thickness gauge 40, so that the characterization of the erosion resistance of the vortex bend test section 59 under the high-temperature condition is realized.
The above description is only a few preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, the technical solution according to the present invention is subject to corresponding simple modifications or equivalent changes, as far as the scope of the present invention is claimed.
Claims (9)
1. An erosion experiment system considering high temperature and pipe column buckling comprises an air compressor (1), a filtering and drying tank (2), a buffer tank (4), a pressure sensor (5), a PID control valve (7), an electronic flowmeter (8), a sand storage tank (9), an electric screw (10), a Thomson valve (11), a water tank (13), a submersible pump (15), a liquid flowmeter (17), an adjustable-flow atomizing nozzle (18), an atomizing cavity (19), a high-speed camera (41) and a data acquisition module, wherein the air compressor (1) is connected to the buffer tank (4) through a pipeline and the filtering and drying tank (2), and the output end of the buffer tank (4) is connected to a gas-solid transparent section (12) at the lower end of the Thomson valve (11) through the pressure sensor (5), the PID control valve (7) and the electronic flowmeter (8); an electric screw (10) is arranged at the lower end of the sand storage tank (9), quartz sand in the sand storage tank (9) enters the Thomson valve (11) through the electric screw (10), and an atomizing cavity (19) is arranged at the right end of the gas-solid transparent section (12); the adjustable-flow atomizing nozzle (18) is arranged in the atomizing cavity (19), the mineralization water (14) in the water tank (13) is connected with the adjustable-flow atomizing nozzle (18) through the submersible pump (15), and the high-speed camera (41) is used for monitoring the erosion experiment condition; the method is characterized in that: the device is characterized by further comprising a gas-liquid-solid mixed first transparent section (20), a first heat insulation section (21), a first high-pressure sealing flange plate (22), a second high-pressure sealing flange plate (23), a third high-pressure sealing flange plate (24), a sine buckling pipe column testing section (25) or a spiral buckling pipe column testing section (26), a high-temperature control box (27), a second heat insulation section (28), a gas-liquid-solid mixed second transparent section (29), a third heat insulation section (30), a gas-liquid-solid mixed third transparent section (31), a gas-liquid-solid recovery hose (32), a dust removal and sand collection box body (33), a laser Doppler velocimeter (35), a wall thickness measurement guide rod, an ultrasonic thickness gauge (40) and a low-temperature water bath (47), wherein the first gas-liquid-solid mixed transparent section (20), the first heat insulation section (21) and an erosion testing module are sequentially connected below the atomization cavity (19), and the lower end of the erosion testing module is connected to the gas-liquid-solid mixed first transparent section (20), the first heat insulation section (21) and the gas-liquid-solid mixed second transparent section (29) and the gas-liquid-solid recovery hose (32) and the gas-liquid-solid recovery testing module is connected to the gas-liquid-solid recovery hose (32) through the second heat insulation section (28), and the gas-liquid-solid recovery section (32), and sand collection box body (31), and the third heat insulation section (31), and the gas-liquid-solid recovery testing module is connected to the third heat recovery hose (32), and the gas-solid recovery testing module is connected to the third heat insulation section (31) through the gas-liquid-solid mixed transparent section (32); the left end of the erosion test module is provided with more than one group of wall thickness measurement wave guide rods, and the wall thickness measurement wave guide rods are respectively connected to a low-temperature water bath (47) through pipelines, so that the temperature of each group of wall thickness measurement wave guide rods is in a room temperature range at any time; the ultrasonic thickness gauge (40) is arranged on the outer side of the erosion test module and connected to each group of wall thickness measurement waveguide rods;
erosion test module include first high-pressure seal ring flange (22), second high-pressure seal ring flange (23), third high-pressure seal ring flange (24), high temperature control case (27), sinusoidal buckling tubular column test section (25) or spiral buckling tubular column test section (26) or vortex return bend test section (59), first insulation section (21) is connected to the upper end of first high-pressure seal ring flange (22), connects sinusoidal buckling tubular column test section (25) or spiral buckling tubular column test section (26) between first high-pressure seal ring flange (22) and second high-pressure seal ring flange (23) vortex return bend test section (59) is installed between first high-pressure seal ring flange (22) and third high-pressure seal ring flange (24).
2. The system of claim 1, wherein the system is characterized in that: the wall thickness measurement guided wave rod comprises a welding point (49) of the measuring rod and a test pipeline, a measuring rod (50), a cooling water inlet (51), a sealing sleeve right end cover (52), a cooling water sealing sleeve (53), a sealing sleeve left end cover (54), a cooling water outlet (55) and an ultrasonic probe (58), wherein the cooling water sealing sleeve (53) is sleeved outside the measuring rod (50), the sealing sleeve left end cover (54) is arranged at the left end of the cooling water sealing sleeve (53), the sealing sleeve right end cover (52) is arranged at the right end of the cooling water sealing sleeve, the cooling water outlet (55) is arranged on the sealing sleeve left end cover (54), the cooling water inlet (51) is arranged at the lower end cover of the sealing sleeve right end cover (52), and the cooling water inlet (51) and the cooling water outlet (55) are respectively connected with a water inlet joint and a water outlet joint in the low-temperature water bath (47) through pipelines so as to realize the cooling of the measuring rod (50); one end of the measuring rod (50) is welded to a wall thickness monitoring position (48) of the test pipeline through a welding point (49) of the measuring rod and the test pipeline, and the other end of the measuring rod is provided with an ultrasonic probe (58).
3. The system of claim 2, wherein the system is characterized in that: wall thickness measurement guided wave pole adopt four groups, including first guided wave pole of wall thickness measurement (36), second guided wave pole of wall thickness measurement (37), third guided wave pole of wall thickness measurement (38) and fourth guided wave pole of wall thickness measurement (39), evenly distributed is in one side of sinusoidal buckling tubular column test section (25) or spiral buckling tubular column test section (26).
4. The system of claim 3, wherein the system is characterized in that: the outer end of the third high-pressure sealing flange plate (24) is connected with a third heat insulation section (30).
5. The system of claim 4, wherein the system comprises: a high-temperature electric furnace (45) is arranged in the inner cavity of the high-temperature control box (27), and the temperature peak value in the high-temperature control box (27) can be stabilized to 600 ℃; the left side of high temperature control box (27) is provided with fixed mouthful of guided wave pole (64) of rectangular shape, be equipped with first stationary blade of guided wave pole (65) in guided wave pole fixed mouthful (64) in proper order, guided wave pole second stationary blade (66), guided wave pole third stationary blade (67), guided wave pole fourth stationary blade (68) and guided wave pole fifth stationary blade (69), with first guided wave pole of wall thickness measurement (36), wall thickness measurement second guided wave pole (37), wall thickness measurement third guided wave pole (38) and wall thickness measurement fourth guided wave pole (39) fix.
6. The system of claim 5, wherein the system is characterized in that: be equipped with first stop valve (3) on the pipeline between filtration and drying tank (2) and buffer tank (4), be equipped with second stop valve (6) on the pipeline between pressure sensor (5) and PID control valve (7), be equipped with third stop valve (16) on the pipeline between liquid flowmeter (17) and immersible pump (15).
7. The system of claim 6, wherein the system comprises: the data acquisition module comprises an acquisition card and acquisition conversion box (42), a data acquisition circuit (43), data processing software and a computer (44), wherein the input end of the data processing software and the computer (44) is connected with a laser Doppler velocimeter (35), an ultrasonic thickness gauge (40), a high-speed camera (41), a pressure sensor (5), a PID control valve (7) and an electronic flowmeter (8) through the acquisition card and acquisition conversion box (42); the high-temperature control box (27) realizes temperature control of a first high-pressure sealing flange plate (22), a second high-pressure sealing flange plate (23), a third high-pressure sealing flange plate (24), a sine buckling pipe column testing section (25), a spiral buckling pipe column testing section (26) or a vortex bent pipe testing section (59) through a collecting card, an acquisition and conversion box (42), data processing software, a computer (44) and a high-temperature electric furnace (45); the laser Doppler velocimeter (35) is arranged on one side of the gas-liquid-solid mixed first transparent section (20) and is used for monitoring the content and the particle size of liquid drops in gas-liquid-solid mixed fluid and realizing the adjustment of the content and the particle size of the liquid drops by combining with an adjustable flow atomizing nozzle (18); the high-speed camera (41) is used for monitoring the flow rate of solid-phase particles and liquid-phase liquid drops of the gas-liquid-solid mixing second transparent section (29) or the gas-liquid-solid mixing third transparent section (31).
8. An experimental method using the erosion experimental system considering high temperature and pipe column buckling of claim 7, wherein: when the sine buckling pipe column test section (25) is adopted for erosion, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as the pipe column to a wall thickness monitoring position (48) of a testing pipeline of a sinusoidal buckling pipe column testing section (25) in a full penetration welding mode;
s2, opening an air compressor (1), a first stop valve (3) and a second stop valve (6), adjusting a PID control valve (7) to reach a target gas velocity, starting a high-temperature control box (27) to preheat a test section to a target temperature of 200 ℃, and cooling the position, close to an ultrasonic probe (58), of each group of wall thickness measuring waveguide rods by means of a low-temperature water bath (47);
s3, installing a welded sine buckling pipe column testing section (25) in a high-temperature control box (27), filling quartz sand into a sand storage tank (9), setting the rotation rate of an electric screw (10) according to the target sand inlet flow, opening a Thomson valve (11) and observing the sand discharging condition in a gas-solid transparent section (12);
s4, waiting for stable sand feeding, starting a submersible pump (15) and a third stop valve (16), and adjusting an adjustable-flow atomizing nozzle (18) to achieve the target water mist flow in an atomizing cavity (19);
s5, observing the gas-liquid-solid mixed first transparent section (20) by means of a laser Doppler velocimeter (35), obtaining the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw (10) and the flow-adjustable atomizing nozzle (18) until the particle size and the quartz sand content of the liquid drops reach the target, and monitoring the liquid-solid flow speed in the gas-liquid-solid mixed second transparent section (29) through a high-speed camera (41);
s6, mixed fluid enters a gas-liquid-solid recovery hose (32) through a first insulation section (21), a first high-pressure sealing flange plate (22), a sine buckling pipe column testing section (25), a second high-pressure sealing flange plate (23), a second insulation section (28) and a gas-liquid-solid mixed second transparent section (29), all sensor data are recorded in the erosion process, and ultrasonic signals are collected through a first guide rod (36) for measuring wall thickness, a second guide rod (37) for measuring wall thickness, a third guide rod (38) for measuring wall thickness and a fourth guide rod (39) for measuring wall thickness;
and S7, calculating to obtain the wall thickness loss of the pipeline based on the ultrasonic signal, the acquisition card and the acquisition and conversion box (42), the data acquisition circuit (43), the data processing software and the computer (44), and disassembling and weighing the testing section (25) of the sinusoidal buckling pipe column after the erosion is finished to obtain the mass loss amount of the erosion.
9. An experimental method using the erosion experimental system considering high temperature and buckling of the pipe string as claimed in claim 7, wherein: when the test section (26) of the spiral buckling pipe column is adopted for erosion, the method comprises the following steps:
s1, welding four groups of wall thickness measuring wave guide rods which are made of the same material as the pipe column to a wall thickness monitoring position (48) of a testing pipeline of a spiral buckling pipe column testing section (26) in a full-penetration welding mode;
s2, opening an air compressor (1), a first stop valve (3) and a second stop valve (6), adjusting a PID control valve (7) to reach a target gas velocity, starting a high-temperature control box (27) to preheat a test section to a target temperature of 200 ℃, and cooling the position, close to an ultrasonic probe (58), of each group of wall thickness measuring waveguide rods by means of a low-temperature water bath (47);
s3, installing a welded spiral buckling pipe column testing section (26) in a high-temperature control box (27), filling quartz sand into a sand storage tank (9), setting the rotation rate of an electric screw (10) according to the target sand inlet flow, opening a Thomson valve (11) and observing the sand discharging condition in a gas-solid transparent section (12);
s4, after the sand feeding is stable, starting a submersible pump (15) and a third stop valve (16), and adjusting an adjustable-flow atomizing nozzle (18) to achieve the target water mist flow in an atomizing cavity (19);
s5, observing the first transparent section (20) for gas-liquid-solid mixing by means of a laser Doppler velocimeter (35), obtaining the particle size and the flow speed of quartz sand and liquid drops, continuously adjusting the electric screw (10) and the flow-adjustable atomizing nozzle (18) until the particle size and the quartz sand content of the liquid drops reach a target, and monitoring the liquid-solid flow rate in the second transparent section (29) for gas-liquid-solid mixing by a high-speed camera (41);
s6, mixed fluid enters a gas-liquid-solid recovery hose (32) through a first heat insulation section (21), a first high-pressure sealing flange plate (22), a spiral buckling pipe column testing section (26), a second high-pressure sealing flange plate (23), a second heat insulation section (28) and a gas-liquid-solid mixing second transparent section (29), all sensor data are recorded in the erosion process, and ultrasonic signals of a wall thickness measurement wave guide rod from the surface of a buckling position are collected;
and S7, calculating to obtain the wall thickness loss of the pipeline based on an ultrasonic signal, an acquisition card and an acquisition conversion box (42), a data acquisition circuit (43), data processing software and a computer (44), and disassembling and weighing the test section (26) of the spiral buckling pipe column after the erosion is finished to obtain the mass loss amount of the erosion.
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| CN108829902B (en) * | 2017-05-02 | 2021-06-25 | 中国石油化工股份有限公司 | Evaluation method for hydraulic fracturing erosion damage of tubular column |
| CN107290229B (en) * | 2017-06-20 | 2019-06-11 | 西南石油大学 | High temperature and pressure erosion-corrosion fatigue test device |
| CN107543690B (en) * | 2017-09-09 | 2019-03-08 | 东北石油大学 | Suspension tubing string sine and Helical Buckling imitative experimental appliance and experimental method in pit shaft |
| CN209102550U (en) * | 2018-10-17 | 2019-07-12 | 宁波市产品质量监督检验研究院 | Gas particle erosion wear experimental rig is visualized under a kind of flowing wetting conditions |
| CN210923372U (en) * | 2019-11-12 | 2020-07-03 | 西南石油大学 | High-temperature high-pressure erosion experimental device with adjustable erosion angle |
| CN111077062B (en) * | 2019-12-18 | 2023-08-22 | 中国石油天然气集团有限公司 | Casing hole erosion test system and method |
| CN114577650A (en) * | 2022-03-07 | 2022-06-03 | 中石化胜利石油工程有限公司塔里木分公司 | Multi-parameter adjustable gas-liquid-solid erosive wear experiment device combining jet flow and pipe flow and using method thereof |
| CN115200976A (en) * | 2022-07-14 | 2022-10-18 | 西安建筑科技大学 | Adjustable gas-liquid-solid three-phase flow erosion wear test device |
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