CN114324041A - Device and method for testing influence of quantified water content on gas-solid erosion behavior - Google Patents
Device and method for testing influence of quantified water content on gas-solid erosion behavior Download PDFInfo
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- CN114324041A CN114324041A CN202111608112.1A CN202111608112A CN114324041A CN 114324041 A CN114324041 A CN 114324041A CN 202111608112 A CN202111608112 A CN 202111608112A CN 114324041 A CN114324041 A CN 114324041A
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 230000003628 erosive effect Effects 0.000 title claims abstract description 50
- 239000007787 solid Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 58
- 238000002347 injection Methods 0.000 claims abstract description 45
- 239000007924 injection Substances 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims 3
- 238000004064 recycling Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 5
- 125000004122 cyclic group Chemical group 0.000 abstract description 3
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000013077 target material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention discloses a device and a method for testing the influence of quantified water content on gas-solid erosion behavior, which are characterized by mainly comprising the following steps: the air compressor machine, the desiccator, the pressure control valve, the connecting pipe, the injection pipe, the water tank, the pipe is placed to the sample, cyclone, store up the sand jar, intelligence sand feeder, wherein cyclone, store up sand jar, intelligence sand feeder connects gradually in the circulating line, can realize the cyclic utilization of sand grain, injection pipe and sample are placed the pipe and are all passed through the sealed hoop of slot and connect into the circulating line, easy dismounting, sealing performance is good, through the opening time of adjusting the injection pipe switch, can control the moisture content of gas-solid erosion, during the experiment, carry out non-aqueous gas-solid erosion test earlier, reach the experiment conclusion, then carry out aqueous gas-solid erosion test, reach the experiment conclusion when containing water, the experiment result before and after contrasting and adding water just can analyze the influence rule of moisture content to gas-solid erosion action. The invention is suitable for the technical field of gas-solid erosion simulation and protection of materials.
Description
Technical Field
The patent relates to the technical field of gas-solid erosion simulation and protection of materials, in particular to a device and a method for testing the influence of quantized water content on gas-solid erosion behavior.
Background
In the fields of building, machinery and petrochemical industry, a plurality of gas-solid erosion phenomena exist, gas is mixed with a plurality of tiny solid particles, the solid particles can perform impact friction on objects which obstruct the movement of the solid particles in high-speed flow, and if the impact friction exists for a long time, the impact friction can cause serious erosion and abrasion on materials, further damages equipment and facilities, influences normal production and use and brings economic loss. How to reduce the loss becomes a problem which researchers in this field must solve.
At present, a plurality of patents exist for researching gas-solid erosion device equipment, for example, patent (CN201510031096.2) proposes a gas-solid two-phase erosion abrasion test device, which can research the impact rebound law of gas-solid two-phase flow hitting a target material at different speeds and angles and the deformation corrosion condition of the target material. The invention patent (CN201910794808.4) provides a gas-solid two-phase high-temperature erosion test device and a test method, which can be used for carrying out gas-solid two-phase high-temperature tests on materials and researching the deformation and erosion conditions of the gas-solid two-phase flow on target materials under different temperatures and different gas conditions. The patents of the invention deeply research gas-solid erosion under different conditions, but the research in the field of gas-solid erosion still has some defects, such as wind erosion of wind sand on a wall body in a humid environment, and the gas-solid erosion is accompanied with a certain amount of liquid, and the research by adopting a conventional gas-solid erosion test device obviously has the defects. The existing patents have not studied the gas-solid erosion under such conditions, so that the invention of a device for research is a problem to be solved urgently by those skilled in the art.
Therefore, the invention provides a device and a method for testing the influence of the quantified water content on the gas-solid erosion behavior aiming at a gas-solid erosion test device which is lack of a certain water content at present.
Disclosure of Invention
Aiming at the defects of the existing research on gas-solid erosion under different water contents, the invention provides a testing device for quantifying the influence of the water content on the gas-solid erosion behavior, and the testing device can be widely applied to erosion tests of different water contents of gas-solid two phases of materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a testing device for quantifying the influence of water content on gas-solid erosion behavior, which mainly comprises: an air compressor, a dryer, a pressure control valve, an air inlet switch, a first three-way pipe, an air inlet pipe, an injection pipe switch, a flowmeter, a first groove sealing hoop, a water tank switch, a connecting pipe, a sample placing pipe, a second groove sealing hoop, a second three-way pipe, a sealing bolt, a switch valve, a cyclone separator, a sand storage tank, an intelligent sand feeder, a sand inlet pipe and a sand inlet switch, wherein the air compressor is connected with the dryer through a hose, the dryer is connected with the pressure control valve through a hose, the output end of the pressure control valve is connected with the first three-way pipe, the other two ends of the first three-way pipe are respectively connected with a sand conveying pipe and a gas conveying pipe, the gas conveying pipe is connected with the injection pipe through the first groove sealing hoop, the other end of the injection pipe is connected with the connecting pipe through the groove sealing hoop, the other end of the connecting pipe is connected with the sample placing pipe through the groove sealing hoop, the other end of the sample placing pipe is connected with the connecting pipe, the other end of the connecting pipe is connected with a second three-way pipe, other two ends of the second three-way pipe are respectively connected with a sealing bolt and the connecting pipe, the connecting pipe is connected with an inlet of a cyclone separator, a sand outlet of the cyclone separator is connected with a sand storage tank, the sand storage tank is connected with an intelligent sand feeder, and the sand outlet of the intelligent sand feeder is connected with a sand conveying pipe.
The spray pipe of the invention is internally provided with a circle of dense small holes, a certain space is arranged between the inner wall and the outer wall of the pipe, the spray pipe switch is arranged for controlling the closing of the holes in the spray pipe, the outer wall of the pipe is provided with an inlet for connecting an external water tank, and the inlet is provided with a flowmeter. When carrying out the moisture content experiment, need close the injection pipe switch earlier, return to zero the flowmeter, open the water tank switch, make water pass through the annular space that the flowmeter got into the injection pipe, when guaranteeing to test, can realize that water evenly sprays into the pipeline in, will take notes the reading of flowmeter when the flowmeter reading no longer changes. When the test is started, the jet pipe switch is opened, the jet pipe switch is closed when the test is finished, the reading of the flow meter is recorded at the moment, the water content of gas-solid erosion can be obtained through the difference between the readings of the front flow meter and the rear flow meter, the required different water contents can be realized by changing the time for opening the switch, the jet pipe is installed in the circulating pipeline through a group of groove sealing hoops, and when the first-stage test is carried out, the jet pipe does not need to be installed in the circulating pipeline so as to avoid influencing the test result.
The sample placing pipe is structurally composed of an upper semicircular pipe and a lower semicircular pipe, wherein the lower semicircular pipe is provided with an erosion panel, when a test is carried out, an erosion sample needs to be arranged on the erosion panel, the erosion panel is arranged on the lower semicircular pipe, the upper semicircular pipe is matched with the lower semicircular pipe through a positioning step, the upper semicircular pipe is sealed through a sealing rubber strip, and the lower semicircular pipe is arranged in a circulating pipeline through a groove sealing hoop.
The inlet of the cyclone separator is connected into the circulating pipeline, the solid outlet of the cyclone separator is connected into the sand storage tank, and the sand storage tank is connected with the intelligent sand adding device, so that the recovery and the cyclic utilization of sand can be realized.
The second purpose of the invention is to provide a method for testing the influence of the quantified water content on the gas-solid erosion behavior, which is characterized by comprising the following steps:
the method comprises the following steps: preparing a sample, making a test data record of the previous stage, mounting the sample on an erosion panel, mounting a sample placing pipe in a circulating pipeline, and preparing the next test without mounting a jet pipe in the circulating pipeline;
step two: firstly, screwing a sealing bolt, opening a switch valve, then sequentially opening an air compressor, a dryer, a pressure control valve, an air inlet switch and a cyclone separator to run for 1 minute, checking whether a circulating pipeline is well sealed, and carrying out the next test if the circulating pipeline is not in an air leakage condition;
step three: adjusting a pressure control switch on the pressure control valve to enable the pressure of the pressure control switch to reach a value required by a test, and when the pressure reaches, opening an air inlet switch and simultaneously opening a sand inlet switch, starting a gas-solid erosion test and starting timing;
step four: when the test time is over, closing the sand inlet switch, then closing the air compressor, the dryer, the pressure control valve and the air inlet switch in sequence, detaching the sample placing pipe, taking out the sample, analyzing the sample by using detection equipment, and recording test data;
step five: replacing a new same group of samples, installing an injection pipe into a circulating pipeline, closing a switch of the injection pipe, closing a switch valve, taking out a sealing bolt, then sequentially opening an air compressor, a dryer, a pressure control valve and an air inlet switch to enable the circulating pipeline to run for 1 minute, checking whether the circulating pipeline is well sealed or not, checking whether air leakage exists or not, closing the air inlet switch after checking, connecting a water tank with an inlet of the injection pipe, adding a test preset water amount into the water tank, and closing the switch of the water tank;
step six: and (4) zeroing the flowmeter, opening a water tank switch to enable water to be filled in the annular space of the injection pipe, and recording the reading of the flowmeter after the reading of the flowmeter is stable. Adjusting a pressure control switch of the pressure control valve to enable the pressure of the pressure control valve to reach a preset value, and after the pressure reaches the preset value, opening an air inlet switch, simultaneously opening a sand inlet switch, and opening a jet pipe switch to start timing;
step seven: when the test time is over, firstly closing the injection pipe switch, simultaneously closing the sand inlet switch, then sequentially closing the air compressor, the dryer, the pressure control valve and the air inlet switch, detaching the sample placing pipe, taking out the sample, analyzing the sample by using detection equipment, and recording test data;
step eight: and adjusting the time for opening the switch of the injection pipe, repeating the fifth step, the sixth step and the seventh step of the test, and finally analyzing all measured data to obtain a test conclusion.
The invention has the advantages that: utilize this quantification moisture content to carry out the erosion test of different materials to testing arrangement of gas-solid erosion action influence for study moisture content is to the influence condition of gas-solid erosion, experimental easy operation, because pipe connection adopts the sealed hoop of slot, guarantees the sealed prerequisite, and it is convenient to dismantle again, and adopts the circulation pipeline, realizes the cyclic utilization of sand grain, and the injection pipe is detachable simultaneously, can improve the accuracy of test result like this.
Drawings
FIG. 1 is a schematic diagram of a testing apparatus for quantifying the influence of water content on gas-solid erosion behavior according to the present invention.
FIG. 2 is a schematic diagram of the injector tube structure of the present invention.
FIG. 3 is a schematic view of a sample placement tube structure of the present invention.
FIG. 4 is a schematic view of the groove seal hoop structure of the present invention.
Detailed Description
As shown in the attached drawings, the invention provides a testing device for measuring the influence of water content on gas-solid erosion behavior, which mainly comprises: the device comprises an air compressor 1, a dryer 2, a pressure control valve 3, an air inlet switch 4, a first three-way pipe 5, an input pipeline 6, a first groove sealing hoop 7, an injection pipe 8, a water tank 11, a connecting pipe 14, a sample placing pipe 15, a second groove sealing hoop 16, a connecting pipe 17, a second three-way connector 19, a sealing bolt 18, a switch valve 20, a cyclone separator 23, a sand storage tank 25, an intelligent sand adding device 26, a sand inlet switch 27 and a sand conveying pipe 28. The air compressor 1 is connected to the drying machine 2 through a hose, the drying machine 2 is connected to the pressure control valve 3 through a hose, the pressure control valve 3 is connected to the first three-way pipe 5, the other two ends of the first three-way pipe 5 are respectively connected with the sand conveying pipe 28 and the air inlet pipe 6, the injection pipe 8 is connected with the air conveying pipe 6 and the connecting pipe 14 through the first sealing hoop 7, the sample placing pipe 15 is respectively connected with the connecting pipe 14 and the connecting pipe 17 through the second groove sealing hoop 16, the connecting pipe 17 is connected with the second three-way connector 19, the other two ends of the second three-way connector 19 are respectively connected with the sealing bolt 18 and the connecting pipe 21, the connecting pipe 21 is connected with the cyclone separator 23, the cyclone separator 23 is connected with the sand storage tank 25, the sand storage tank 25 is connected with the intelligent sand adding device 26, and the intelligent sand adding device 26 is connected with the sand conveying pipe 28.
The injection pipe 8 is connected into a circulating pipeline through two first groove sealing hoops 7, the injection pipe 8 is provided with an injection pipe inlet 9 for connecting a water tank 11, the injection pipe inlet 9 of the injection pipe 8 is provided with a flow meter 13, the injection pipe 8 is provided with an injection pipe switch 10 for controlling the injection of water, and the flow meter 13 is used for recording the water content during a gas-solid erosion test.
The sample placing pipe 15 of the present invention is composed of an upper semicircular pipe 29 and a lower semicircular pipe 31, wherein an erosion panel 32 is installed on the lower semicircular pipe 31, the upper semicircular pipe 29 and the lower semicircular pipe 31 are installed through a positioning step, sealed by a sealing gasket 30, and then installed in a circulation pipeline through a second sealing groove hoop 16.
In order to make the objects, technical solutions and advantages of the present invention more clear, the following description of the embodiments of the present invention with reference to the accompanying drawings 1, 2, 3 and 4 includes the following detailed steps:
the method comprises the following steps: preparing a sample, making test data recording, mounting the sample on the erosion panel 32, mounting the sample placing pipe 15 in the circulating pipeline, and preparing the next test without mounting the injection pipe 8 in the circulating pipeline;
step two: firstly, screwing up a sealing bolt 18, opening a switch valve 20, closing a sand inlet switch 27, sequentially opening an air compressor 1, a dryer 2, a pressure control valve 3, an air inlet switch 4 and a cyclone separator 17 to operate for 1 minute, checking whether a circulating pipeline is well sealed or not, and performing the next test if the circulating pipeline is not well sealed or not;
step three: adjusting a pressure control switch on the pressure control valve 3 to enable the pressure of the pressure control switch to reach a preset test value, and after the pressure is reached, opening the air inlet switch 4 and simultaneously opening the sand inlet switch 27, starting a gas-solid erosion test and starting timing;
step four: when the time is over, closing the sand inlet switch 27, then closing the air compressor 1, the dryer 2, the pressure control valve 3 and the air inlet switch 4 in sequence, detaching the sample placing pipe 15, taking out the sample, analyzing the sample by using detection equipment, and recording test data;
step five: replacing a new same group of samples, installing an injection pipe 8 into a circulating pipeline, closing an injection pipe switch 10, closing a switch valve 20, taking out a sealing bolt 18, sequentially opening an air compressor 1, a dryer 2, a pressure control valve 3 and an air inlet switch 4, running for 1 minute, checking whether the circulating pipeline is well sealed or not, if the circulating pipeline is in an air leakage state, finishing the check, closing the air inlet switch 4, connecting a water tank 11 with an injection pipe inlet 9, adding a test preset water amount into the water tank 11, and closing a water tank switch 12 at the moment;
step six: zeroing the flowmeter 13, opening the water tank switch 12 to fill the annular space of the injection pipe 8 with water, recording the reading of the flowmeter 13 when the reading of the flowmeter 13 is stable, adjusting the pressure control switch of the pressure control valve 3 to enable the pressure to reach a preset test value, opening the air inlet switch 4 after the pressure is reached, and simultaneously opening the sand inlet switch 27 and the injection pipe switch 10 to start timing;
step seven: when the test time is over, firstly closing the injection pipe switch 10, then closing the sand inlet switch 27, the air compressor 1, the dryer 2, the pressure control valve 3 and the air inlet switch 4 in sequence, detaching the sample placing pipe 15, taking out the sample, carrying out sample analysis through detection equipment, and recording test data;
step eight: and adjusting the time for opening the injection tube switch 10, repeating the fifth step, the sixth step and the seventh step, and finally analyzing all measured data to obtain a test conclusion.
Claims (2)
1. A testing device and method for quantifying the influence of water content on gas-solid erosion behavior are characterized by mainly comprising the following steps: air compressor (1), desiccator (2), pressure control valve (3), air inlet switch (4), first tee bend interface (5), gas transmission pipeline (6), first slot seal hoop (7), injection pipe (8), injection pipe water inlet (9), injection pipe switch (10), water tank (11), water tank switch (12), flowmeter (13), connecting pipe (14), sample placement tube (15), second slot seal hoop (16), connecting pipe (17), second tee bend interface (19), sealing bolt (18), switch valve (20), connecting pipe (21), cyclone (23), sand storage tank (25), intelligent sand feeder (26), sand inlet switch (27), sand transmission pipe (28), injection pipe (8) are connected through first slot seal hoop (7) and gas transmission pipeline (6), connecting pipe (14), sample placement tube (15) are through second slot seal hoop (16) and connecting pipe (14), The connecting pipe (17) is connected, the air compressor (1) pressurizes and conveys gas to the dryer (2), the dryer (2) dries and conveys the gas to the pressure control valve (3), when the pressure control valve (3) controls the air pressure to a required value, the air inlet switch (4) is opened, then the pressure control valve (3) is opened, the sand inlet switch (27) is opened at the same time, the gas is mixed with sand grains through the first three-way connector (5), the sand-containing gas enters the cyclone separator (23) through the input pipeline (6), the injection pipe (8), the connecting pipe (14), the sample placing pipe (15), the connecting pipe (17), the second three-way connector (19) and the connecting pipe (21), the gas is separated from the solid through the cyclone separator (23), the gas is discharged through the gas outlet (22) on the cyclone separator (23), and the solid enters the sand storage tank (25) through the solid outlet (24) on the cyclone separator (23), the sand storage tank (25) is connected with the intelligent sand adding device (26) to realize the recycling of sand grains.
2. The method for testing the influence of the quantified water content on the gas-solid erosion behavior provided by the device of claim 1, wherein the method for testing the influence of the quantified water content on the gas-solid erosion behavior comprises the following steps:
the method comprises the following steps: preparing a sample, making test data record, mounting the sample on an erosion panel (32), mounting a sample placing pipe (15) in a circulating pipeline, and preparing the next test without mounting a jet pipe (8) in the circulating pipeline;
step two: firstly, screwing a sealing bolt (18), opening a switch valve (20), closing a sand inlet switch (27), sequentially opening an air compressor (1), a dryer (2), a pressure control valve (3), an air inlet switch (4) and a cyclone separator (17) to operate for 1 minute, checking whether a circulating pipeline is well sealed or not, and carrying out a next test if the circulating pipeline is not in a gas leakage condition;
step three: adjusting a pressure control switch on the pressure control valve (3) to enable the pressure of the pressure control switch to reach a preset test value, and after the pressure is reached, opening an air inlet switch (4) and simultaneously opening a sand inlet switch (27), starting a gas-solid erosion test and starting timing;
step four: when the time is over, closing the sand inlet switch (27), then closing the air compressor (1), the dryer (2), the pressure control valve (3) and the air inlet switch (4) in sequence, detaching the sample placing pipe (15), taking out the sample, analyzing the sample by using detection equipment, and recording test data;
step five: replacing a new same group of samples, installing an injection pipe (8) into a circulating pipeline, closing an injection pipe switch (10), closing a switch valve (20), taking out a sealing bolt (18), sequentially opening an air compressor (1), a dryer (2), a pressure control valve (3) and an air inlet switch (4) to enable the circulating pipeline to run for 1 minute, checking whether the circulating pipeline is well sealed or not, if the air leakage condition exists, closing the air inlet switch (4), connecting a water tank (11) with an injection pipe inlet (9), adding a test preset water amount into the water tank (11), and closing a water tank switch (12) at the moment;
step six: resetting the flowmeter (13) to zero, opening a water tank switch (12) to fill the annular space of the injection pipe (8) with water, recording the reading of the flowmeter (13) when the reading of the flowmeter (13) is stable, adjusting a pressure control switch of a pressure control valve (3) to enable the pressure to reach a preset test value, opening an air inlet switch (4) after the pressure reaches, and simultaneously opening a sand inlet switch (27) and an injection pipe switch (10) to start timing;
step seven: when the test time is over, firstly closing the injection pipe switch (10), then sequentially closing the sand inlet switch (27), the air compressor (1), the dryer (2), the pressure control valve (3) and the air inlet switch (4), detaching the sample placing pipe (15), taking out the sample, carrying out sample analysis through detection equipment, and recording test data;
step eight: and adjusting the time for opening the injection tube switch (10), repeating the fifth step, the sixth step and the seventh step, and finally analyzing all measured data to obtain a test conclusion.
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| CN202111608112.1A CN114324041A (en) | 2021-12-22 | 2021-12-22 | Device and method for testing influence of quantified water content on gas-solid erosion behavior |
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| CN202111608112.1A CN114324041A (en) | 2021-12-22 | 2021-12-22 | Device and method for testing influence of quantified water content on gas-solid erosion behavior |
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| CN210442219U (en) * | 2019-06-17 | 2020-05-01 | 西南石油大学 | Sand-containing shale gas gathering and transportation pipeline erosion experiment loop platform |
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- 2021-12-22 CN CN202111608112.1A patent/CN114324041A/en active Pending
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