CN210639042U - Detachable loop type gas-liquid-solid erosion-wear combined test device - Google Patents
Detachable loop type gas-liquid-solid erosion-wear combined test device Download PDFInfo
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- CN210639042U CN210639042U CN201920634867.0U CN201920634867U CN210639042U CN 210639042 U CN210639042 U CN 210639042U CN 201920634867 U CN201920634867 U CN 201920634867U CN 210639042 U CN210639042 U CN 210639042U
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Abstract
The utility model discloses a detachable ring way formula gas-liquid solid erosion wear combined test device. The inlet of the static mixer is provided with a mixing point, a multiphase flow medium is mixed with gas at the outlet of the gas storage tank through an oil-water inlet to form an oil-gas-water three-phase flow, the oil-gas-water three-phase flow is input into the static mixer, the outlet of the static mixer is divided into two branches, and the main branch is communicated with the three-phase separator through a first organic glass testing section and a first detachable testing section in sequence to form a multiphase flow erosion testing loop; the secondary branch is communicated with the second electromagnetic flowmeter through a plurality of valves, pressure gauges, thermometers and a second flowmeter, and the second electromagnetic flowmeter is communicated with the gas-liquid-solid cyclone separator through a second detachable testing pipe fitting and a second organic glass testing section. The utility model discloses a change the multiphase flow erosion test circuit's of oil gas water three-phase proportion, through the flow pattern/flow state that corresponds in organic glass's test section test tube, can realize the pipeline and the valve erosion wear test of different gas, liquid, solid proportion.
Description
Technical Field
The utility model relates to a solid erosion and wear test device of loop formula gas-liquid, concretely relates to detachable loop formula gas-liquid is solid to erode wearing and tearing combined test device.
Background
The pressure pipeline is used as an important special device for conveying fluid, bears certain temperature and pressure during service, and is widely applied to the fields of long-distance conveying of oil and gas pipelines, ocean exploitation, coal chemical industry, petrochemical industry and the like.
Petrochemical industry and coal chemical industry are national economic pillar industries of China and are closely related to national economic life. In recent years, with the increase of the dependence degree of China on external crude oil, the processing amount of corrosive crude oil with high sulfur, high nitrogen, chlorine and the like in the middle east increases year by year, and the severe erosion corrosion problem is caused to cold exchange equipment such as air coolers, heat exchangers and the like in oil refining fields such as medium petrochemicals, medium petroleum, medium sea oil and the like in China. In addition, as more solid-phase particles of the pulverized coal are conveyed in the field of coal chemical industry, the problems of erosion corrosion and erosion abrasion of typical pipe fittings represented by three-way pipes, elbows and reducing pipes are extremely prominent in the conveying process of oil, gas and water and solid-phase media, and the safe operation of key equipment and pipeline systems in the process industries such as petrochemical industry, coal chemical industry and the like is seriously influenced.
Research results at home and abroad show that oil-gas-water erosion and gas-liquid-solid erosion abrasion generally exist in the fields of petrochemical industry and coal chemical industry. A pertinent experimental device is designed by a related research institution, and an experimental scheme is formulated by using a similar rule to research an actual pipeline erosion wear mechanism. In contrast, the related test device still has the following disadvantages:
(1) the existing research focuses on the aspects of flow characteristics of oil-gas, oil-water and gas-water two-phase or single-phase and the like, and relatively few researches are carried out in the field of erosion corrosion failure of an oil-gas-water three-phase coexistence environment, so that the erosion failure mechanism of multiphase coupling in a multiphase flow coexistence environment is difficult to fundamentally research.
(2) Aiming at the erosion and abrasion phenomenon of the pipeline in the coal chemical industry, due to the existence of more external interference factors, a correlation formula between the erosion and abrasion rate and variables (particle impact angle, particle diameter, particle concentration, height, speed, roughness, temperature and pressure) based on multiple factors is difficult to establish.
(3) The traditional erosion test method usually adopts a weighing method and an ultrasonic thickness measurement method, or the risk of erosion is judged by establishing wall shear stress through numerical simulation and comparing the wall shear stress with the residual thickness of the pipeline wall, and the incidence relation between water wetting and multiphase flow erosion characteristics is less established from the angle of water wetting.
In conclusion, the erosion and wear mechanism of oil, gas, water and solid-phase corrosive multiphase flow is not clear, so that the related experimental device and test method have more limitations in application and are difficult to popularize and apply.
SUMMERY OF THE UTILITY MODEL
The utility model aims to current not enough about heterogeneous stream erosion wear device research, the utility model aims to provide a detachable ring way formula gas-liquid solid erosion wear test device can form heterogeneous stream erosion test circuit and develop the multiphase stream erosion experimental study of oil gas water, can constitute the erosion wear mechanism of gas-liquid solid test circuit test typical pipe fitting and valve again, has realized the closed circulation test system of the oil gas water in the whole ring way return circuit and gas-liquid solid phase not only independent but also interconnect, improves erosion wear test efficiency.
Therefore, the utility model aims to design one set of detachable loop style gas-liquid-solid erosive wear joint test device that can simulate operating condition, be applicable to mechanism research and characteristic database construction that gas-water multiphase flow erodees and erodes and abrades with gas-liquid-solid multiphase flow erosion, establish theoretical foundation for the erosive wear failure prediction evaluation of multiphase flow pipeline.
In order to achieve the above object, the utility model adopts the following technical scheme:
the device comprises a static mixer, a first organic glass testing section, a first detachable testing section, an inserted blade liquid drop separator, a particle feeding device, a vortex shedding flowmeter, a regulating valve, a second detachable testing pipe fitting, a second organic glass testing section, a gas-liquid-solid cyclone separator, a reservoir and a circulating water pump; the inlet of the static mixer is provided with a mixing point, a multiphase flow medium is mixed with gas at the outlet of the gas storage tank through an oil-water inlet to form an oil-gas-water three-phase flow at the mixing point, the oil-gas-water three-phase flow is input to the inlet of the static mixer, the outlet of the static mixer is divided into a main branch and a secondary branch, the main branch is communicated with the middle inlet of the three-phase separator through a pipeline after sequentially passing through a first ball valve, a first organic glass testing section, a second thermometer, a fourth pressure gauge, a first detachable testing section and a first electromagnetic flowmeter, and a multiphase flow erosion testing loop is formed; the secondary branch is communicated with an inlet of a second electromagnetic flowmeter through a second ball valve, a third pressure gauge, a fifth pressure gauge, a third thermometer and an adjusting valve in sequence, and an outlet of the second electromagnetic flowmeter is communicated with a side feed inlet at the upper part of the gas-liquid-solid cyclone separator through a second detachable testing pipe fitting and a second organic glass testing section in sequence; an outlet at the top of the gas-liquid-solid cyclone separator is communicated with an inlet at the side part of the inner inserted blade liquid droplet separator, an outlet at the side part of the inner inserted blade liquid droplet separator is communicated with an inlet of the static mixer, an outlet at the bottom of the inner inserted blade liquid droplet separator and an outlet at the middle lower part of the gas-liquid-solid cyclone separator are communicated with an inlet of a reservoir, the outlet of the reservoir is communicated with a bypass led out between a third pressure gauge and a fifth pressure gauge after sequentially passing through a fourth ball valve and a circulating water pump, and the outlet at the bottom of the gas-liquid-solid cyclone separator is communicated with a particle discharge outlet through a; the inlet of the particle feeding device is communicated with the air inlet pipeline through a vortex flowmeter, and particles flowing out of the outlet of the particle feeding device are communicated with a bypass led out between the third pressure gauge and the fifth pressure gauge through a pipeline to form a gas-liquid-solid erosion abrasion testing loop.
The internal structure of the internal-inserting blade liquid drop separator consists of a plurality of parallel angle baffle plates and separating blades which are parallel to each other, the wet gas inlet is communicated with the dry gas outlet through the parallel angle baffle plates, and the bottoms of the parallel angle baffle plates are communicated with the liquid discharge outlet; the mixed gas containing liquid drops and atomized bubbles obtained by the separation of the top of the gas-liquid-solid cyclone separator through the overflow pipe enters a baffling channel through a wet gas inlet to form an inserted blade liquid drop separator, the mixed gas impacts the blade wall surface of a parallel angle baffle plate under the action of self inertia and is separated by the parallel angle baffle plate blade to form a gas phase part and a liquid phase part, the separated gas phase part flows out through a dry gas outlet and returns to the inlet of the static mixer, the separated liquid phase part flows out through a liquid discharge outlet and then converges with the liquid phase part flowing out from the middle lower part of the gas-liquid-solid cyclone separator through a third ball valve, and the converged fluid is communicated to the inlet of a reservoir through a pipeline.
The gas-liquid-solid cyclone separator mainly comprises an upper barrel, a lower barrel and a conical inner core, wherein the upper barrel and the lower barrel are butted respectively at the upper part and the lower part, the upper barrel is a first cylindrical barrel for gas-liquid-solid separation, the lower barrel is a second cylindrical barrel for liquid-solid separation, an overflow pipe is arranged at the top of the first cylindrical barrel, a gas-liquid-solid material inlet communicated with an inner cavity is arranged on the side surface of the first cylindrical barrel, a liquid discharge port is arranged on the side surface of the second cylindrical barrel, and a particle discharge outlet is arranged at the bottom of the second; the conical inner core is positioned at the top of the second cylindrical barrel body and is of a conical structure with a large upper end and a small lower end, the upper end of the conical inner core is communicated with the inner cavity of the first cylindrical barrel body, and the lower end of the conical inner core is communicated with the liquid discharge port and the granule discharge outlet.
First organic glass test section, first removable test section, the removable test tube of second, the removable test tube spare of second all be detachably installed in the pipeline.
The elbow pipe pipeline wall of first removable test section on set up the conductance probe of test moisture content, all be provided with round conductance probe in the different cross-sections department of first removable test section, every circle conductance probe includes a plurality of conductance probes along circumference interval equipartition.
The multiphase flow media of the multiphase flow erosion test loop of the utility model are gas phase, oil phase and water phase; the multiphase flow medium of the gas-liquid-solid erosion wear test loop is a gas phase, a water phase and a solid particle phase; the gas phase is nitrogen, the oil phase is white oil, and the water phase is sulfur-containing sewage; the solid particle phase is silicon dioxide and catalyst particles.
The device also comprises a three-phase separator, a gas-liquid cyclone separator, a water inlet and an oil inlet; the water inlet is connected with the inlet of the pipeline filter through a fifth gate valve, the outlet of the pipeline filter is divided into two branches, one branch of the water inlet is connected with the bottom inlet of the three-phase separator after passing through a third gate valve, a bypass is led out between the bottom inlet of the three-phase separator 1 and the third gate valve and is connected with a drainage outlet through an eighth ball valve, the other branch of the water inlet is connected to the inlet of the heater after sequentially passing through a sewage metering pump, a flowmeter and a third one-way valve, the outlet of the heater is communicated with the inlet of the static mixer through a first pressure gauge, and the outlet of the sewage metering pump leads out the bypass and is communicated with the inlet of the; an oil inlet is divided into two branches after sequentially passing through a fourth gate valve and a pipeline filter, one branch of the oil inlet is communicated with an inlet in the middle of the three-phase separator after passing through a second gate valve, the other branch of the oil inlet is connected to an inlet of a heater after sequentially passing through a magnetic drive pump, a second one-way valve and a third electromagnetic flowmeter, a bypass is led out between the three-phase separator and the second gate valve and is communicated with an oil discharge outlet through a seventh ball valve, and a bypass is led out between the magnetic drive pump and the first one-way valve and is communicated with the inlet in the middle of the three-phase separator through the first gate; an outlet at the top of the three-phase separator sequentially passes through a pressure control valve and a cooler and then is communicated with an inlet at the side surface of the middle part of the gas-liquid cyclone separator, an outlet at the bottom of the gas-liquid cyclone separator is communicated with an inlet of a heater through a sixth gate valve, and a nitrogen inlet is communicated with an inlet at the lower middle part of the gas-liquid cyclone separator through a seventh gate valve; the outlet at the top of the gas-liquid cyclone separator is communicated to the inlet of the static mixer after sequentially passing through a compressor, a first thermometer, a first one-way valve, a sixth ball valve and a gas storage tank; a bypass is led out between the compressor and the first one-way valve and is used as an air inlet pipeline to be communicated with an inlet of the particle feeding device after sequentially passing through the second pressure gauge, the fifth ball valve and the vortex shedding flowmeter.
The top of the three-phase separator is provided with a burst valve and a PIC pressure control valve, the PIC pressure control valve is connected with an exhaust port, a foam breaking net is arranged in the middle upper part of the three-phase separator, and the lower part of the three-phase separator is provided with a first liquid level meter and a boundary level meter through a pipeline.
The gas-liquid cyclone separator is provided with a liquid level alarm device which is communicated with a pipeline.
The utility model has the advantages that:
the utility model discloses a change the multiphase flow erosion test circuit's of oil gas water three-phase proportion, through the flow pattern/flow state that corresponds in organic glass's the test section test tube, the different velocity of flow of record and moisture content operating mode establish the inherent contact that pipeline wall water is moist and multiphase flow erosion, establish the erosion database, confirm the erosion rate.
Similarly, the gas-liquid-solid erosive wear test loop can realize erosive wear tests of pipelines and valves with different gas, liquid and solid proportions, can be used for testing and obtaining the formation condition of erosive wear in variable working condition environments, establishes the incidence relation between erosive wear rate and variables, and provides hardware support for the experimental device for the optimized material selection and the optimized design in the fields of petrochemical industry and coal chemical industry.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention;
fig. 2 is a schematic view of a partial structure a of the present invention;
FIG. 3 is a schematic diagram of a three-phase separator tank configuration;
FIG. 4 is a view showing the construction of a gas-liquid cyclone;
FIG. 5 is a block diagram of an in-line blade droplet separator;
FIG. 6 is a schematic diagram of a gas-liquid-solid three-phase cyclone separator;
FIG. 7 is a partial profile view of the assembly 22 of FIG. 1;
FIG. 8 is a cross-sectional view of O-O' of FIG. 1.
In the figure: 1. a three-phase separator; 2. a blast valve; 3. a foam breaking net; 4. a gate valve; 5. an oil discharge outlet; 6. A drain outlet; 7. a cooler; 8. a gas-liquid cyclone separator; 9. a pressure control valve; 10. a nitrogen inlet; 11. a compressor; 12. a first check valve; 13. a gas storage tank; 14. a static mixer; 15. a particle feed device; 16. adjusting a valve; 17. a second detachable test section; 18. a flange; 19. an interpolated vane droplet separator; 20. a second organic glass test section; 21. a gas-liquid-solid cyclone separator; 22. a first detachable test section; 23. a first electromagnetic flow meter; 24. a wastewater flowmeter; 25. a pipeline filter; 26. A water inlet; 27. a magnetic drive pump; 28. an oil inlet; 29. a first liquid level meter; 30. an exhaust port; 31. A first organic glass test section; 32. a heater; 33. a liquid level alarm device; 34. the pipelines are communicated; 35. A wet gas inlet; 36. a baffle plate; 37. a liquid discharge port; 38. a boundary position meter; 39. a PIC pressure control valve; 40. an overflow pipe; 41. a first cylindrical barrel; 42. a tapered inner core; 43. a liquid discharge port; 44. a particle discharge outlet; 45. a second cylindrical barrel; 46. a tapered structure; 47. a gas-liquid-solid material tangential inlet; 48. a fourth ball valve; 49. a conductance probe; 50. a dry gas outlet; 51. a vortex shedding flowmeter; 52. a reservoir; 53. A water circulating pump; 54. removing the three-phase separation system; 55. a mixing point; 56. and (5) oil-water inlet.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Fig. 1, 2, 3 and 5 show the general structure and the structure of an inner-inserted blade droplet separator according to the present invention. The specific implementation comprises a three-phase separator 1, a gas-liquid cyclone separator 8, a water inlet 26, an oil inlet 28, a static mixer 14, a first organic glass test section 31, a first detachable test section 22, an inserted blade liquid drop separator 19, a particle feeding device 15, a vortex flowmeter 51, a regulating valve 16, a second detachable test section 17, a second organic glass test section 20, a gas-liquid-solid cyclone separator 21, a water reservoir 52 and a circulating water pump 53.
As shown in fig. 1, a water inlet 26 is connected with an inlet of a pipeline filter 25 through a fifth gate valve, an outlet of the pipeline filter 25 is divided into two branches, one branch of the water inlet 26 is connected with an inlet at the bottom of a three-phase separator 1 after passing through a third gate valve, a bypass is led out between the inlet at the bottom of the three-phase separator 1 and the third gate valve and is connected with a drainage outlet 6 through an eighth ball valve, the other branch of the water inlet 26 is connected with an inlet of a heater 32 after sequentially passing through a sewage metering pump 24, a flowmeter and a third check valve, an outlet of the heater 32 is communicated with an inlet of a static mixer 14 through a first pressure gauge, and an outlet of the sewage metering pump 24 is led out of the bypass and; an oil inlet 28 sequentially passes through a fourth gate valve and a pipeline filter and then is divided into two branches, one branch of the oil inlet 28 is communicated with the inlet in the middle of the three-phase separator 1 after passing through a second gate valve, the other branch of the oil inlet 28 is sequentially connected to the inlet of a heater 32 after passing through a magnetic drive pump 27, a second one-way valve and a third electromagnetic flow meter, a bypass is led out between the three-phase separator 1 and the second gate valve and is communicated with an oil discharge outlet 5 through a seventh ball valve, and a bypass is led out between the magnetic drive pump 27 and the second one-way valve and is communicated with the inlet in the middle of the three-phase separator 1 through a first; an outlet at the top of the three-phase separator 1 is communicated with an inlet at the side surface of the middle part of the gas-liquid cyclone separator 8 after sequentially passing through a pressure control valve 9 and a cooler 7, an outlet at the bottom of the gas-liquid cyclone separator 8 is communicated with an inlet of a heater 32 through a sixth gate valve, a nitrogen inlet 10 is communicated with an inlet at the middle lower part of the gas-liquid cyclone separator 8 through a seventh gate valve, and a control end of the pressure control valve 9 is communicated with an outlet at the top of the gas-liquid cyclone separator 8; the outlet at the top of the gas-liquid cyclone separator 8 is communicated to the inlet of the static mixer 14 after sequentially passing through a compressor 11, a first thermometer, a first one-way valve 12, a sixth ball valve and a gas storage tank 13, and the specific implementation is that the outlet is connected to a pipeline which is arranged between the heater 32 and the static mixer 14 and is close to one side of the static mixer; the compressor 11 is connected with a motor, a bypass is led out between the compressor 11 and the first one-way valve 12 and is used as an air inlet pipeline to be communicated with an inlet of the particle feeding device 15 after sequentially passing through a second pressure gauge, a fifth ball valve and a vortex flowmeter 51.
As shown in FIG. 3, a burst valve 2 and a PIC pressure control valve 39 are arranged at the top of the three-phase separator 1, the PIC pressure control valve 39 is connected with the exhaust port 30, a foam breaking net is arranged in the upper middle of the three-phase separator 1, and a first liquid level meter 29 and a level meter 38 are arranged at the lower part of the three-phase separator 1 through pipelines. The function of the explosion valve 2 in the three-phase separator is safe and explosion-proof in the operation process; the PIC pressure control valve 39 controls the internal pressure of the three-phase separator to prevent the internal pressure from being too high, and an exhaust port 30 is arranged on a pipeline connected with the three-phase separator and the PIC pressure control valve for safe exhaust; the first liquid level meter 29 and the interface level meter 38 which are correspondingly arranged on the side surfaces respectively judge the oil-water liquid level degree of the three-phase separator, so that the flow control liquid level in the pipeline is adjusted through the flow regulating valve.
As shown in fig. 4, the gas-liquid cyclone 8 is provided with a liquid level alarm device 33 and a pipe connection 34, the pipe connection 34 being used in conjunction with the liquid level alarm device to prevent the gas-liquid cyclone 8 from generating an excessively high liquid level.
As shown in fig. 2, a mixing point 55 is arranged at an inlet of the static mixer 14, a multiphase flow medium flowing out of the heater 32 is mixed with gas at an outlet of the gas storage tank 13 at the mixing point 55 through an oil-water inlet 56 to form an oil-gas-water three-phase flow, namely a mixed phase of a gas phase, a water phase and an oil phase, the oil-gas-water three-phase flow is input to the inlet of the static mixer 14, the outlet of the static mixer 14 is divided into two branches of a main branch and a secondary branch, the main branch sequentially passes through a first ball valve, a first organic glass testing section 31, a second thermometer, a fourth pressure gauge, a first detachable testing section 22 and a first electromagnetic flowmeter 23 and then is communicated with an inlet in the middle of the three-phase separator 1 through a pipeline, and the three-phase separator 1 simultaneously enters the static mixer 14 through two gas-liquid paths of the gas-liquid cyclone separator 8 to; the secondary branch is communicated with an inlet of a second electromagnetic flowmeter through a second ball valve, a third pressure gauge, a fifth pressure gauge, a third thermometer and a regulating valve 16 in sequence, and an outlet of the second electromagnetic flowmeter is communicated with a side surface feed inlet at the upper part of the gas-liquid-solid cyclone separator 21 through a second detachable testing pipe fitting 17 and a second organic glass testing section 20 in sequence and a pipeline; the outlet at the top of the gas-liquid-solid cyclone separator 21 is communicated with the inlet at the first side of the inner inserted blade liquid drop separator 19, the outlet at the first side of the inner inserted blade liquid drop separator 19 is communicated with the inlet of the static mixer 14, the outlet at the bottom of the inner inserted blade liquid drop separator 19 and the outlet at the lower part of the gas-liquid-solid cyclone separator 21 are communicated with the inlet of a reservoir 52, the outlet of the reservoir 52 is communicated with a bypass led out between a third pressure gauge and a fifth pressure gauge after passing through a fourth ball valve 48 and a circulating water pump 53 in sequence, and the outlet at the bottom of the gas-liquid-solid cyclone separator 21 is communicated with a particle discharge; an inlet of the particle feeding device 15 is communicated with an air inlet pipeline through a vortex flowmeter 51, and particles flowing out of an outlet of the particle feeding device 15 are communicated with a bypass led out between a third pressure gauge and a fifth pressure gauge through a pipeline to form a gas-liquid-solid erosion abrasion testing loop.
As shown in fig. 5, the internal blade droplet separator 19 is provided with a wet gas inlet 35, a dry gas outlet 50 and a drainage outlet 37, the wet gas inlet 35 and the dry gas outlet 50 are arranged on the outer walls of two sides, the drainage outlet 37 is arranged at the bottom, the internal structure is composed of a plurality of parallel angle baffle plates 36 and separating blades which are parallel to each other, the wet gas inlet 35 is communicated with the dry gas outlet 50 through the parallel angle baffle plates 36, and the bottoms of the parallel angle baffle plates 36 are communicated with the drainage outlet 37; the mixed gas containing liquid drops and atomized bubbles obtained by the separation of the top of the gas-liquid-solid cyclone separator 21 through an overflow pipe enters a baffling channel formed by a baffle plate 36 with parallel angles through a wet gas inlet 35 to form an inserted blade liquid drop separator 19, the mixed gas impacts the blade wall surface of the baffle plate 36 with parallel angles under the action of self inertia and is separated by the blades of the baffle plate 36 with parallel angles to form a gas phase part and a liquid phase part, the separated gas phase part flows out through a dry gas outlet 50 and returns to the inlet of the static mixer 14, the separated liquid phase part flows out through a liquid discharge outlet 37 and then is converged with the liquid phase part flowing out from the middle lower part of the gas-liquid-solid cyclone separator 21 through a third ball valve, and the converged fluid is communicated to an inlet of a reservoir.
Water, oil and gas are introduced from a water inlet 26, an oil inlet 28 and an air inlet, the three-phase separator 1 is used for oil-gas-water three-phase separation treatment, the gas-liquid-solid cyclone separator 21 is used for gas-liquid-solid three-phase separation treatment, the gas-liquid cyclone separator 8 is used for secondary gas-liquid separation treatment, the static mixer 14 is used for oil-gas-water three-phase mixing treatment to improve the mixing effect, and the interpolated blade liquid drop separator 19 is used for drying treatment to remove liquid carried by mist foam in the gas. The first and second organic glass test sections 20 are used for observing, and the detachable test section is used for respectively carrying out multiphase flow erosion test loop and gas-liquid-solid erosion abrasion test loop tests.
As shown in fig. 6, the gas-liquid-solid cyclone separator 21 mainly comprises an upper cylinder 41 for gas-liquid-solid separation, a lower cylinder 45 for liquid-solid separation, an overflow pipe 40 disposed at the top of the first cylinder 41, a gas-liquid-solid material inlet 47 communicating with the inner cavity disposed at the side of the first cylinder 41, a liquid outlet 43 disposed at the side of the second cylinder 45, and a particle outlet 44 disposed at the bottom of the second cylinder 45, wherein the upper cylinder and the lower cylinder are respectively disposed at the upper part and the lower part in butt joint; the conical inner core 46 is positioned at the top of the second cylindrical barrel 45, the conical inner core 46 is a conical structure 42 with a large upper end and a small lower end, the upper end of the conical inner core 46 is communicated with the inner cavity of the first cylindrical barrel 41, and the lower end of the conical inner core 46 is communicated with the liquid discharge port 43 and the granule discharge outlet 44.
As shown in fig. 1, the first organic glass testing section 31, the first detachable testing section 22, the second detachable testing tube 17, and the second organic glass testing section 20 are all detachably installed in the pipeline through the flanges 18 installed by bolts and screws.
Set up the conductance probe 49 of test moisture content on the return bend pipeline wall of first removable test section 22, as shown in fig. 7, all be provided with round conductance probe 49 in the different cross-sections department of first removable test section 22, as shown in fig. 8, every circle conductance probe 49 includes a plurality of conductance probe 49 along circumference interval equipartition, and the circular cross-section's of conductance probe 49 interval 10 equipartition in the concrete implementation in the return bend circumference interval 10.
The output of the conductance probe 49 is connected to an external circuit for processing, and the electrical signal data acquired by the conductance probe 49 is processed and analyzed to obtain the wettability of the oil-gas-water multiphase flow medium on the wall surface of the pipeline, so that the medium distribution condition in the pipeline at the test section can be obtained.
The utility model discloses in the concrete implementation, temperature, pressure and the flow isoparametric that mainly comes the whole ring way formula test device of control through heater, cooler, valve and flowmeter to because heterogeneous stream erodees and corrodes and cause scientific problems such as pipeline inefficacy with reasons such as gas-liquid solid erosion and wear under the simulation operating mode, the experimental function mainly comprises from a series of experimental steps such as device gas tightness and water pressure test, device edulcoration, pressure/temperature regulation, gas-liquid solid ratio, oil gas water ratio experiment.
(1) Device air tightness and hydrostatic test:
in order to ensure the air tightness of the whole device and the pressure bearing degree of the pipeline, the test device needs to be subjected to an air tightness test, a first ball valve, a second ball valve, a third ball valve, a fourth ball valve, a fifth ball valve and a sixth ball valve are opened, a seventh ball valve, an eighth ball valve and a ninth ball valve are closed, a first gate valve, a second gate valve, a third gate valve and a sixth gate valve are opened, the fourth gate valve and the fifth gate valve are closed, nitrogen is introduced into an air inlet of a gas-liquid cyclone separator 8, a compressor is opened to provide power, the air tightness of the whole device is tested, after three quarters of volume of water is introduced from a water inlet, two paths of multiphase flow erosion and gas-liquid-solid erosion abrasion are introduced after pressurization is carried out through a sewage metering pump 24, whether the pipeline leakage and other problems caused by processing, connection and other problems exist in organic glass section pipelines or not is observed, and whether the pipeline, Pipe bursting, and the like.
(2) Removing impurities in the device, and adjusting pressure and temperature: after the air tightness and the hydraulic pressure test of the device are checked, the second gate valve and the third gate valve are closed, the seventh ball valve, the eighth ball valve and the ninth ball valve are opened, nitrogen is continuously introduced, gas impurities in the whole loop type system are discharged, the process is repeated for 3 times, the second gate valve is opened at the moment, the ninth ball valve is closed, after water at a water inlet is introduced into the system by using the sewage metering pump 24, the temperature required by a heater is set, the temperature of the position where a multiphase flow erosion corrosion branch and a gas-liquid solid erosion wear branch to be researched are located is observed by using a thermometer, the opening degree of a valve in the pipeline is adjusted, the pressure in the pipeline is controlled to be approximately maintained at about 1Mpa, and the stable and safe operation of.
(3) Gas-liquid-solid ratio:
for studying petrochemical to the heterogeneous stream erosion wear problem of typical pipe fitting, the utility model discloses first ball valve is closed before experimental apparatus joins in marriage liquid, opens second ball valve and fifth ball valve after, the valve aperture of pipeline is controlled to fifth gate valve and fifth ball valve through water inlet and compressor bypass survey line respectively, reads corresponding parameter separately with first electromagnetic flowmeter 23 and vortex flowmeter 51, and the electromagnetic flowmeter through heterogeneous stream erosion wear test return circuit calculates granule volume such as required silica. Calculating the volume fraction of gas, liquid and solid in the pipeline by the following calculation formula:
Vgas+Vpartice+Vwater＝1
in the formula (I), the compound is shown in the specification,
which represents the volume fraction of the gas,
the volume fraction of the aqueous phase is expressed,
represents the volume fraction of the particles; vgasDenotes the volume flow of gas, VparticeDenotes the amount of feed of the particles, VwaterRepresents the aqueous phase volume flow.
(4) Oil-gas-water ratio: to the proportion configuration problem of oil gas water three-phase in the pipeline, at first open first ball valve, close second ball valve and fifth ball valve, in this experimental apparatus containing water and gaseous medium's the condition, beat oil to entire system from the oil inlet through magnetic force drive pump, the similar principle of oil gas water proportion in the pipe-line system, promptly: the oil-gas-water content was controlled by varying the valves at the respective inlets, and the volumetric flow rates of gas and oil were recorded by the first electromagnetic flow meter 23, and the volume fraction of each component in the pipe was calculated by the following formula.
Vgas+Voil+Vwater＝1
In the formula (I), the compound is shown in the specification,
denotes the volume fraction of the oil phase, VoilRepresenting the oil phase volume flow.
(5) Experiment: the experiment mainly consists of two parts:
a multiphase flow erosion test loop (experiment 1) and an air-liquid solid erosion wear test loop (experiment 2);
aiming at a first multiphase flow erosion test loop, on the premise of ensuring that a first detachable test section 22 and a first organic glass test section 32 are completely installed, a first ball valve in the test loop is opened, a second ball valve is closed, the gas and oil flow in a pipeline is regulated through a valve, the volume flow is respectively recorded by an electromagnetic flowmeter, the respective volume fractions of oil, gas and water are calculated, the opening degree of the valve is changed, the working conditions that the water phase fraction is 5-60 percent and experimental data are recorded every 10 percent are respectively recorded; aiming at the water contents under different working conditions, a high-speed camera is adopted to shoot the flow pattern/flow state of the first organic glass test section in a steady state; for the first detachable test section (carbon steel elbow component), mainly for a typical elbow component, the voltage signal of the conductance probe on the wall surface of the pipeline is counted by installing the conductance probe on the component every 10 degrees along the circumferential direction, and the wetting type is judged.
And (3) replacing the first detachable testing section (a carbon steel material bent pipe part), replacing other structural forms and other parts (a tee joint, a large head and a small head and a protruding flaring), repeating the experiment in sequence, establishing a function relation formula about multiphase flow erosion and water wetting, closing the second gate valve and the third gate valve after the experiment is finished, and opening the seventh ball valve and the eighth ball valve to drain liquid and exhaust gas. And dismantling the first detachable test section, carrying out ultrasonic thickness measurement and anatomical analysis on the typical pipeline part, analyzing the surface appearance and components by using experimental analysis means such as a Scanning Electron Microscope (SEM) and energy spectrum analysis, and fitting the incidence relation (parameters such as water content, speed and roughness) between the corrosion rate and the influence factors according to the data of ultrasonic thickness measurement.
For the second multiphase flow erosion wear test loop (experiment 2), after the second detachable test section and the second organic glass test section are ensured, the first ball valve is closed, the first ball valve and the fifth ball valve are opened, the opening degree of the test loops is controlled through valves, the volume flow of gas, liquid and particles is recorded through respective flowmeters, and the respective volume fractions and particle concentrations of three phases are calculated.
Changing the content of gas and liquid water, recording the erosion and wear working conditions of the second detachable testing section (a bent pipe part) under different particle concentrations (2% -10%), simultaneously replacing the second detachable testing section with a transparent material, capturing the visual distribution of particles in a typical bent pipe part and an organic glass testing section by using a high-speed camera, and qualitatively judging the main failure part of the particles on the bent pipe position; the size of the particles was varied and the experiment was repeated under the above conditions and the data was photographed and recorded.
The valve opening of the regulating valve is changed, the erosion wear degree of the particle speed in the pipeline to the wall surface of the pipeline is recorded, the erosion wear degree of the valve under different valve openings is simultaneously carried out, and experimental data are recorded. And the second detachable testing section (a bent pipe part) replaces typical parts with different structural forms, the experiment is repeated, the incidence relation between the pipeline typical parts and the valve erosion abrasion loss in the gas-liquid-solid state and the factors such as particle concentration, particle size, valve opening, pipeline material and the like is established, and after the experiment is finished, the seventh, eighth and ninth ball valves are opened, gas is continuously introduced, and the gas-liquid-solid material is discharged.
Claims (6)
1. The utility model provides a detachable ring road formula gas-liquid-solid erosion wear combined test device which characterized in that: the device comprises a static mixer (14), a first organic glass testing section (31), a first detachable testing section (22), an inserted blade liquid drop separator (19), a particle feeding device (15), a vortex flowmeter (51), a regulating valve (16), a second detachable testing pipe fitting (17), a second organic glass testing section (20), a gas-liquid-solid cyclone separator (21), a reservoir (52) and a circulating water pump (53); a mixing point (55) is arranged at the inlet of the static mixer (14), a multiphase flow medium is mixed with gas at the outlet of the gas storage tank (13) through an oil-water inlet (56) at the mixing point (55) to form an oil-gas-water three-phase flow, the oil-gas-water three-phase flow is input to the inlet of the static mixer (14), the outlet of the static mixer (14) is divided into a main branch and two branches of a secondary branch, and the main branch is communicated with the middle inlet of the three-phase separator (1) through a pipeline after sequentially passing through a first ball valve, a first organic glass testing section (31), a second thermometer, a fourth pressure gauge, a first detachable testing section (22) and a first electromagnetic flowmeter (23) to form a multiphase flow erosion testing loop; the secondary branch is communicated with an inlet of a second electromagnetic flowmeter through a second ball valve, a third pressure gauge, a fifth pressure gauge, a third thermometer and an adjusting valve (16) in sequence, and an outlet of the second electromagnetic flowmeter is communicated with a side surface feed inlet at the upper part of the gas-liquid-solid cyclone separator (21) through a pipeline after sequentially passing through a second detachable testing pipe fitting (17) and a second organic glass testing section (20); an outlet at the top of the gas-liquid-solid cyclone separator (21) is communicated with an inlet at one side of the inner inserted blade liquid drop separator (19), an outlet at one side of the inner inserted blade liquid drop separator (19) is communicated with an inlet of the static mixer (14), an outlet at the bottom of the inner inserted blade liquid drop separator (19) and an outlet at the middle lower part of the gas-liquid-solid cyclone separator (21) are communicated with an inlet of a reservoir (52), an outlet of the reservoir (52) is communicated with a bypass led out between a third pressure gauge and a fifth pressure gauge after sequentially passing through a fourth ball valve (48) and a circulating water pump (53), and an outlet at the bottom of the gas-liquid-solid cyclone separator (21) is communicated with a particle discharge outlet through a ninth ball valve; an inlet of the particle feeding device (15) is communicated with an air inlet pipeline through a vortex flowmeter (51), particles flowing out of an outlet of the particle feeding device (15) are communicated with a bypass led out between a third pressure gauge and a fifth pressure gauge through a pipeline, and a gas-liquid-solid erosion abrasion testing loop is formed;
the internal-inserting type blade liquid drop separator (19) is provided with a wet gas inlet (35), a dry gas outlet (50) and a liquid discharge outlet (37), the internal structure of the internal-inserting type blade liquid drop separator consists of a plurality of parallel angle baffle plates (36) which are parallel to each other and separation blades, the wet gas inlet (35) is communicated with the dry gas outlet (50) through the parallel angle baffle plates (36), and the bottoms of the parallel angle baffle plates (36) are communicated with the liquid discharge outlet (37); mixed gas containing liquid drops and atomized bubbles obtained by separating the top of the gas-liquid-solid cyclone separator (21) through an overflow pipe enters a baffling channel through a wet gas inlet (35) to form an inserted blade liquid drop separator (19), the mixed gas impacts the blade wall surface of a parallel angle baffle plate (36) under the action of self inertia and is separated by blades of the parallel angle baffle plate (36) to form a gas phase part and a liquid phase part, the separated gas phase part flows out through a dry gas outlet (50) and returns to an inlet of the static mixer (14), the separated liquid phase part flows out through a liquid discharge outlet (37) and then is converged with the liquid phase part flowing out from the middle lower part of the gas-liquid-solid cyclone separator (21) through a third ball valve, and the converged fluid is communicated to an inlet of a reservoir (52) through a pipeline;
the gas-liquid-solid cyclone separator (21) mainly comprises an upper barrel body, a lower barrel body and a conical inner core (46), wherein the upper barrel body and the lower barrel body are butted respectively at the upper part and the lower part, the upper barrel body is a first cylindrical barrel body (41) for gas-liquid-solid separation, the lower barrel body is a second cylindrical barrel body (45) for liquid-solid separation, an overflow pipe (40) is arranged at the top of the first cylindrical barrel body (41), a gas-liquid-solid material inlet (47) communicated with the inner cavity is formed in the side surface of the first cylindrical barrel body (41), a liquid outlet (43) is formed in the side surface of the second cylindrical barrel body (45), and a particle discharge outlet (; the conical inner core (46) is positioned at the top of the second cylindrical barrel body (45), the conical inner core (46) is of a conical structure (42) with a large upper end and a small lower end, the upper end of the conical inner core (46) is communicated with the inner cavity of the first cylindrical barrel body (41), and the lower end of the conical inner core (46) is communicated with the liquid discharge port (43) and the particle discharge outlet (44).
2. The detachable loop type gas-liquid-solid erosive wear combined test device according to claim 1, characterized in that: the first organic glass test section (31), the first detachable test section (22), the second detachable test pipe fitting (17) and the second organic glass test section (20) are all detachably mounted in the pipeline.
3. The detachable loop type gas-liquid-solid erosive wear combined test device according to claim 1, characterized in that: the elbow pipe pipeline wall of first removable test section (22) on set up conductance probe (49) of test moisture content, all be provided with round conductance probe (49) in the different cross-sections department of first removable test section (22), every circle conductance probe (49) include along a plurality of conductance probe (49) of circumference interval equipartition.
4. The detachable loop type gas-liquid-solid erosive wear combined test device according to claim 1, characterized in that: the device also comprises a three-phase separator (1), a gas-liquid cyclone separator (8), a water inlet (26) and an oil inlet (28); a water inlet (26) is connected with an inlet of a pipeline filter (25) through a fifth gate valve, an outlet of the pipeline filter (25) is divided into two branches, one branch of the water inlet (26) is connected with an inlet at the bottom of the three-phase separator (1) after passing through a third gate valve, a bypass is led out between the inlet at the bottom of the three-phase separator (1) and the third gate valve and is connected with a drainage outlet (6) through an eighth ball valve, the other branch of the water inlet (26) is connected with an inlet of a heater (32) after sequentially passing through a sewage metering pump (24), a flowmeter and a third one-way valve, an outlet of the heater (32) is communicated with an inlet of a static mixer (14) through a first pressure gauge, and a bypass is led out of an outlet of the sewage metering pump (24) and is communicated; an oil inlet (28) is divided into two branches after sequentially passing through a fourth gate valve and a pipeline filter, one branch of the oil inlet (28) is communicated with the inlet in the middle of the three-phase separator (1) after passing through a second gate valve, the other branch of the oil inlet (28) is connected to the inlet of a heater (32) after sequentially passing through a magnetic drive pump (27), a second one-way valve and a third electromagnetic flowmeter, a bypass is led out between the three-phase separator (1) and the second gate valve and is communicated with an oil discharge outlet (5) through a seventh ball valve, and a bypass is led out between the magnetic drive pump (27) and the first one-way valve and is communicated with the inlet in the middle of the three-phase separator (1) through a first gate valve (4; an outlet at the top of the three-phase separator (1) is communicated with an inlet at the side surface of the middle part of the gas-liquid cyclone separator (8) after sequentially passing through a pressure control valve (9) and a cooler (7), an outlet at the bottom of the gas-liquid cyclone separator (8) is communicated with an inlet of a heater (32) through a sixth gate valve, and a nitrogen inlet (10) is communicated with an inlet at the middle lower part of the gas-liquid cyclone separator (8) through a seventh gate valve; an outlet at the top of the gas-liquid cyclone separator (8) is communicated to an inlet of a static mixer (14) after sequentially passing through a compressor (11), a first thermometer, a first one-way valve (12), a sixth ball valve and a gas storage tank (13); a bypass is led out between the compressor (11) and the first one-way valve (12) and is used as an air inlet pipeline to be communicated with an inlet of the particle feeding device (15) after sequentially passing through a second pressure gauge, a fifth ball valve and a vortex flowmeter (51).
5. The detachable loop type gas-liquid-solid erosive wear combined test device according to claim 4, characterized in that: the top of the three-phase separator (1) is provided with a burst valve (2) and a PIC pressure control valve (39), the PIC pressure control valve (39) is connected with an exhaust port (30), a foam breaking net is arranged in the middle upper part of the three-phase separator (1), and the lower part of the three-phase separator (1) is provided with a first liquid level meter (29) and a boundary level meter (38) through a pipeline.
6. The detachable loop type gas-liquid-solid erosive wear combined test device according to claim 4, characterized in that: the gas-liquid cyclone separator (8) is provided with a liquid level alarm device (33) and a pipeline communication (34).
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| CN201920634867.0U CN210639042U (en) | 2019-05-06 | 2019-05-06 | Detachable loop type gas-liquid-solid erosion-wear combined test device |
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| CN201920634867.0U CN210639042U (en) | 2019-05-06 | 2019-05-06 | Detachable loop type gas-liquid-solid erosion-wear combined test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160902A (en) * | 2019-05-06 | 2019-08-23 | 浙江理工大学 | Detachable loop-type gas-liquid-solid erosive wear combined test device |
| CN112067426A (en) * | 2020-09-27 | 2020-12-11 | 兰州理工大学 | Visual measuring device for erosion of separated valve port and using method |
| CN113984639A (en) * | 2021-10-29 | 2022-01-28 | 中船黄埔文冲船舶有限公司 | Pipe flow type corrosion test device |
| CN115389210A (en) * | 2022-10-27 | 2022-11-25 | 四川新川航空仪器有限责任公司 | Oil-gas simulation mechanism for oil-gas separation performance evaluation test |
-
2019
- 2019-05-06 CN CN201920634867.0U patent/CN210639042U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160902A (en) * | 2019-05-06 | 2019-08-23 | 浙江理工大学 | Detachable loop-type gas-liquid-solid erosive wear combined test device |
| CN110160902B (en) * | 2019-05-06 | 2024-04-12 | 浙江理工大学 | Detachable annular gas-liquid-solid erosive wear combined test device |
| CN112067426A (en) * | 2020-09-27 | 2020-12-11 | 兰州理工大学 | Visual measuring device for erosion of separated valve port and using method |
| CN112067426B (en) * | 2020-09-27 | 2023-08-04 | 兰州理工大学 | Visual measuring device for erosion of separated valve port and use method |
| CN113984639A (en) * | 2021-10-29 | 2022-01-28 | 中船黄埔文冲船舶有限公司 | Pipe flow type corrosion test device |
| CN113984639B (en) * | 2021-10-29 | 2024-03-26 | 中船黄埔文冲船舶有限公司 | Pipe flow type corrosion test device |
| CN115389210A (en) * | 2022-10-27 | 2022-11-25 | 四川新川航空仪器有限责任公司 | Oil-gas simulation mechanism for oil-gas separation performance evaluation test |
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