CN113125323A - A simulation tidal range device for exploring tidal range district hydrogen infiltration - Google Patents
A simulation tidal range device for exploring tidal range district hydrogen infiltration Download PDFInfo
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- CN113125323A CN113125323A CN202010040521.5A CN202010040521A CN113125323A CN 113125323 A CN113125323 A CN 113125323A CN 202010040521 A CN202010040521 A CN 202010040521A CN 113125323 A CN113125323 A CN 113125323A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 25
- 239000001257 hydrogen Substances 0.000 title claims abstract description 25
- 238000004088 simulation Methods 0.000 title abstract description 4
- 230000008595 infiltration Effects 0.000 title description 2
- 238000001764 infiltration Methods 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 85
- 239000013535 sea water Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000000630 rising effect Effects 0.000 claims description 11
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 description 9
- 239000007769 metal material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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Abstract
The invention relates to a tidal range simulation device, in particular to a tidal range simulation device for exploring hydrogen permeation in a tidal range area, wherein a sample cylinder A is respectively communicated with a sample cylinder B through a liquid conveying pipeline A and a liquid conveying pipeline B, the liquid conveying pipeline A is respectively provided with a variable-frequency metering pump A, an electromagnetic valve A and a three-way valve B, the liquid conveying pipeline B is respectively provided with a three-way valve C, an electromagnetic valve B and a variable-frequency metering pump B, the three-way valve B is connected with the three-way valve C through the liquid conveying pipeline C, and the liquid conveying pipeline C is provided with a three-way valve D; sea water is contained in the water storage barrel, a submersible pump is arranged inside the water storage barrel and connected with a three-way valve A through a liquid conveying pipeline E, and the three-way valve A is connected with a three-way valve through a liquid conveying pipeline D. The invention is fit with the actual sea tidal range cycle and tidal range height, simulates the real sea tidal range environment, realizes the real-time recording of the sea water liquid level and temperature in the tidal range, and provides the experimental basis for exploring the hydrogen permeation law in the tidal range.
Description
Technical Field
The invention relates to a tidal range simulator, in particular to a tidal range simulator for exploring hydrogen permeation in a tidal range area.
Background
Due to the characteristics of high salt content of seawater and the like, metal is easy to corrode in the marine environment, and the marine environment is divided into five zones including a marine atmosphere zone, a spray splashing zone, a marine tidal range zone, a seawater full immersion zone and a seabed sea mud zone. Wherein, the sea tidal range zone is a zone with more serious corrosion along with the dry-wet alternation effect of the surface of the metal material. In the process of metal corrosion, hydrogen permeates into a metal matrix along with the metal matrix, so that the material is subjected to hydrogen embrittlement, and finally the material fails, wherein the hydrogen permeation is one of main reasons for failure of the metal material in ocean engineering. Therefore, the method has great significance in researching the permeation behavior and the rule of hydrogen into metal materials in the marine environment, particularly in the marine tidal range area environment with serious corrosion.
The influence of controllable variables (drying and wetting alternation time, seawater temperature and the like) on the permeation behavior of hydrogen into the metal material is preliminarily researched by the simulated tidal range device, so that a foundation is laid for a hydrogen permeation experiment in a complex real sea tidal range environment, and the analysis is convenient.
Disclosure of Invention
The invention aims to provide a simulated tidal range device for exploring hydrogen permeation in a tidal range area. The device can simulate the environmental characteristics of the alternation of dryness and wetness in the tidal range area, and can record the temperature and the liquid level change of the seawater in real time; the device has small floor area, and can truly reproduce the change process of the rising tide and the falling tide of the ocean tidal range area along with time in a laboratory, thereby creating an experimental environment for knowing and analyzing the permeation behavior and the law of hydrogen in the tidal range area into metal materials.
The purpose of the invention is realized by the following technical scheme:
the invention comprises a sample cylinder A, a water storage barrel, a submersible pump and a sample cylinder B, wherein the sample cylinder A is respectively communicated with the sample cylinder B through a liquid conveying pipeline A and a liquid conveying pipeline B; sea water is contained in the water storage barrel, a submersible pump is arranged inside the water storage barrel and connected with a three-way valve A through a liquid conveying pipeline E, and the three-way valve A is connected with the three-way valve through a liquid conveying pipeline D.
Wherein: one interface of the three-way valve A is connected with the submersible pump through a liquid conveying pipeline E, the second interface is connected with the three-way valve through a liquid conveying pipeline D, the third interface is connected with the inlet of a self-priming pump, and the outlet of the self-priming pump is connected with a liquid conveying pipeline F; the seawater in the sample cylinder A and the sample cylinder B is discharged through a self-priming pump and a liquid conveying pipeline F through a three-way valve B, a three-way valve C, a three-way valve and the three-way valve A.
The working states of the variable-frequency metering pump A and the electromagnetic valve A are opposite to the working states of the variable-frequency metering pump B and the electromagnetic valve B, namely when the variable-frequency metering pump A and the electromagnetic valve A are opened or closed, the variable-frequency metering pump B and the electromagnetic valve B are closed or opened.
And a liquid level sensor is arranged in the sample cylinder A or the sample cylinder B and is positioned at the bottommost end of the sample cylinder A or the sample cylinder B.
And a temperature sensor is arranged on the outer wall of the sample cylinder A or the sample cylinder B, and the position of the temperature sensor is lower than the lowest moisture level of the sample cylinder A or the sample cylinder B.
And scales convenient for observing the water level change condition are respectively attached to the outer walls of the sample cylinder A and the sample cylinder B.
The controller is also provided with a time setter for setting the working time of the variable-frequency metering pump A, the electromagnetic valve A, the variable-frequency metering pump B and the electromagnetic valve B and realizing periodic timing opening or closing.
The sample cylinder A and the sample cylinder B have opposite tidal ranges, namely, the sample cylinder A is in a rising tide state or a falling tide state, and the sample cylinder B is in a falling tide state or a rising tide state.
The invention has the advantages and positive effects that:
1. the invention can realize that the two sample cylinders are in opposite states of rising tide and falling tide at the same time, thereby simultaneously carrying out two groups of experiments in the same time period and controlling the dry and wet states to be unique different points; therefore, the experimental period can be shortened, variable control in a hydrogen permeation experiment is facilitated, and analysis is facilitated.
2. The invention can create a tidal range environment close to the real sea, simulate a regular dry-wet alternation state, and simultaneously monitor and record the change conditions of water temperature and water level under natural conditions in real time, thereby providing a convenient and controllable simulated experiment environment for exploring the permeation behavior and the rule of hydrogen into metal materials in the tidal range area environment, being beneficial to analyzing the influence mechanism of partial controllable factors, and laying a foundation for more complex real sea experiments.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a graph showing the change of the seawater level in the sample cylinder A with time according to the present invention;
FIG. 3 is a graph showing the temperature of seawater in a sample container A according to the present invention with time;
wherein: 1 is sample cylinder A, 2 is autohension scale A, 3 is temperature sensor, 4 is level sensor, 5 is inverter type measuring pump A, 6 is the water storage bucket, 7 is the immersible pump, 8 is three-way valve A, 9 is the self priming pump, 10 is solenoid valve A, 11 is three-way valve B, 12 is autohension scale B, 13 is sample cylinder B, 14 is inverter type measuring pump B, 15 is solenoid valve B, 16 is the electrical control case, 17 is the tee bend, 18 is three-way valve C, 19 is liquid conveying pipeline A, 20 is liquid conveying pipeline B, 21 is liquid conveying pipeline C, 22 is liquid conveying pipeline D, 23 is liquid conveying pipeline E, 24 is liquid conveying pipeline F.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the seawater desalination device comprises a sample cylinder a1, a water storage tank 6, a submersible pump 7, a self-priming pump 9 and a sample cylinder B13, wherein the sample cylinder a1 is respectively communicated with the sample cylinder B13 through a liquid conveying pipeline a19 and a liquid conveying pipeline B20, the liquid conveying pipeline a19 is respectively provided with a variable-frequency metering pump a5, an electromagnetic valve a10 and a three-way valve B11, the liquid conveying pipeline B20 is respectively provided with a three-way valve C18, an electromagnetic valve B15 and a variable-frequency metering pump B14, and the seawater flow between the sample cylinder a1 and the sample cylinder B13 is realized; the three-way valve B11 is connected with the three-way valve C18 through a liquid conveying pipeline C21, and a three-way valve D22 is arranged on the liquid conveying pipeline C21; seawater is contained in the water storage barrel 6, a submersible pump 7 is arranged in the water storage barrel 6, the submersible pump 7 is connected with a three-way valve A8 through a liquid conveying pipeline E23, and the three-way valve A8 is connected with a three-way valve 17 through a liquid conveying pipeline D22. One interface of the three-way valve A8 is connected with the submersible pump 7 through a liquid conveying pipeline E23, the second interface is connected with one interface of the three-way valve 17 through a liquid conveying pipeline D22, the third interface of the three-way valve A8 is connected with the inlet of the self-priming pump 9, and the outlet of the self-priming pump 9 is connected with a liquid conveying pipeline F24; the second interface of the tee joint 17 is connected with one interface of the three-way valve C18, and the third interface of the tee joint 17 is connected with one interface of the three-way valve B11; the second interface of the three-way valve B11 is connected with the sample cylinder B13 through a liquid output pipeline, the third interface is connected with the sample cylinder A1 through a liquid conveying pipeline, and the variable-frequency metering pump A5 and the electromagnetic valve A10 are arranged on the liquid conveying pipeline between the sample cylinder A1 and the third interface of the three-way valve B11; the second interface of the three-way valve C18 is connected with the sample cylinder A1 through a liquid conveying pipeline, the third interface is connected with the sample cylinder B13 through a liquid conveying pipeline, and the variable-frequency metering pump B14 and the electromagnetic valve B15 are arranged on the liquid conveying pipeline between the sample cylinder B13 and the third interface of the three-way valve C18. The seawater in the sample container a1 and the sample container B13 is discharged through the three-way valve B11, the three-way valve C18, the three-way valve 17, and the three-way valve A8 by the self-priming pump 9 and through the liquid transfer line F24.
The sample cartridge a1 of this example is in a state opposite to the sample cartridge B13 in the state of humidity difference, i.e., the sample cartridge a1 is in a rising or falling state of humidity, and the sample cartridge B13 is in a falling or rising state of humidity.
The operating states of the variable-frequency metering pump a5 and the electromagnetic valve a10 of the present embodiment are opposite to the operating states of the variable-frequency metering pump B14 and the electromagnetic valve B15, that is, when the variable-frequency metering pump a5 and the electromagnetic valve a10 are opened or closed, the variable-frequency metering pump B14 and the electromagnetic valve B15 are closed or opened. The variable-frequency metering pump A5 and the variable-frequency metering pump B14 of the embodiment can be used for manually setting the frequency to change the flow rate of the seawater.
The outer wall of the sample cylinder A1 or the sample cylinder B13 is provided with a temperature sensor 3, and the position of the temperature sensor 3 is lower than the lowest tide level of the sample cylinder A1 or the sample cylinder B13. The temperature sensor 3 of the present embodiment is attached to the outer wall of the cuvette a 1.
A liquid level sensor 4 is mounted in the sample cartridge a1 or the sample cartridge B13, and the liquid level sensor 4 is located at the lowermost end of the sample cartridge a1 or the sample cartridge B13. The liquid level sensor 4 of the present embodiment is mounted inside the sample cartridge a 1.
The outer walls of the sample tube a1 and the sample tube B13 of the present embodiment are respectively attached with a self-adhesive scale a2 and a self-adhesive scale B12, which facilitates the intuitive observation of the change of the water level.
The variable-frequency metering pump a5, the electromagnetic valve a10, the variable-frequency metering pump B14 and the electromagnetic valve B15 of the present embodiment are respectively connected to a controller in the electrical control box 16, the controller is used for controlling the variable-frequency metering pump a5, the electromagnetic valve a10, the variable-frequency metering pump B14 and the electromagnetic valve B15, the controller is further provided with a time setter, the time setter ranges from 0s to 99h, and the controller can respectively and independently set the operating time of the variable-frequency metering pump a5 and the variable-frequency metering pump B14; the electromagnetic valve A10 and the variable-frequency metering pump A5 are in the same control loop, and the electromagnetic valve B15 and the variable-frequency metering pump B14 are in the same control loop; and after the working time is set, entering a periodic timing switch circulation mode.
The adjustment range of the working frequency of the variable-frequency metering pump A5 and the variable-frequency metering pump B14 for controlling the flow rate is 1-360.
The working principle of the invention is as follows:
the sample cylinder A1 and the sample cylinder B13 are both organic glass cylinders with open upper parts, the diameter is 20cm, the height is 3m, and simulated seawater fluctuation occurs in the cylinders.
Seawater in the water storage barrel 6 is injected into a sample cylinder A1 by a submersible pump 7 through a liquid conveying pipeline E23, a three-way valve A8, a three-way valve 17 and a three-way valve C18 to reach the highest tide level of simulated tidal range; meanwhile, the seawater in the water storage barrel 6 is injected into the sample cylinder B13 by the submersible pump 7 through the liquid conveying pipeline E23, the three-way valve A8, the three-way valve 17 and the three-way valve B11, and the lowest tide level of the simulated tidal range is achieved.
The controller in the electric control box 16 controls the on-off and the working time of the electromagnetic valve A10, the electromagnetic valve B15, the variable-frequency metering pump A5 and the variable-frequency metering pump B14, when the variable-frequency metering pump A5 and the electromagnetic valve A10 are opened and the variable-frequency metering pump B14 and the electromagnetic valve B15 are closed, seawater is injected into the sample cylinder B13 from the sample cylinder A1 through the liquid conveying pipeline A19, the variable-frequency metering pump A5 and the electromagnetic valve A10, and therefore the liquid level in the sample cylinder A1 is lowered and the liquid level in the sample cylinder B13 is raised. On the contrary, when the variable-frequency metering pump B14 and the electromagnetic valve B15 are opened and the variable-frequency metering pump a5 and the electromagnetic valve a10 are closed, seawater is injected into the sample cylinder a1 from the sample cylinder B13 through the liquid conveying pipeline B20, the variable-frequency metering pump B14 and the electromagnetic valve B15, so that the liquid level in the sample cylinder B13 is lowered and the liquid level in the sample cylinder a1 is raised, and corresponding rising tide and falling tide processes are simulated.
The working time of the variable-frequency metering pump A5 and the variable-frequency metering pump B14 can be freely set and adjusted through a controller in the electric control box 16, so that a circulating working mode between the variable-frequency metering pump A5 and the variable-frequency metering pump B14 is realized, and the working states of the electromagnetic valve A10 and the electromagnetic valve B15 are controlled. In the experiment for exploring the hydrogen permeation in the tidal range, the natural seawater fluctuation law is simulated, a fluctuation period is 12 hours, namely the variable-frequency metering pump A5 is controlled to continuously work for 6 hours and then closed, meanwhile, the variable-frequency metering pump B14 is controlled to continuously work for 6 hours, and the cycle is repeated in such a way to simulate the tidal fluctuation and the tide drop.
The liquid level change and the sea water temperature change in the sample container a1 and the sample container B13 are monitored and recorded in real time by the liquid level sensor 4 and the temperature sensor 3, respectively.
The seawater in the sample cartridge a1 and the sample cartridge B13 is discharged from the self-priming pump 9 through the three-way valve B11, the three-way valve C18, the three-way valve 17, and the three-way valve A8, thereby refreshing the seawater in the sample cartridge a1 and the sample cartridge B13.
Examples of the experiments
The working time of the variable-frequency metering pump A5 and the working time of the variable-frequency metering pump B14 are both set to be 6 hours through a time setter in the electric control box 16, the working frequency of the variable-frequency metering pump A5 is adjusted to be 211, the working frequency of the variable-frequency metering pump B14 is adjusted to be 246, the height of the tidal range is controlled to be 2m, and 12 hours are a tidal range period, so that the effect of simulating half-day tides is achieved.
Injecting seawater in a water storage barrel 6 into a sample cylinder A1 through a liquid conveying pipeline E23, a liquid conveying pipeline D22, a liquid conveying pipeline C21 and a liquid conveying pipeline B20 by using a submersible pump 7, so that the liquid level in the sample cylinder A1 is 270 cm; the liquid level in the sample cell B13 was set to 70cm by injecting the sample cell B13 through the liquid transfer line E23, the liquid transfer line D22, the liquid transfer line C21 and the liquid transfer line A19.
The controller in the electric control box 16 controls and opens the variable-frequency metering pump A5 and the electromagnetic valve A10, so that the seawater in the sample cylinder A1 is injected into the sample cylinder B13; after the liquid level in the sample cylinder B13 reaches 270cm after 6-hour work, the variable-frequency metering pump A5 and the electromagnetic valve A10 are controlled to be closed, and the variable-frequency metering pump B14 and the electromagnetic valve B15 are controlled to be opened at the same time, so that the seawater in the sample cylinder B13 flows back to the sample cylinder A1; after working for 6 hours, controlling to close the variable-frequency metering pump B14 and the electromagnetic valve B15 after the seawater liquid level in the sample cylinder A1 reaches 270cm, and simultaneously opening the variable-frequency metering pump A5 and the electromagnetic valve A10, so that the automatic reciprocating cycle working is realized, the lowest tide level is controlled to be 70cm, the highest tide level is 270cm, and the tidal range height is 2 meters.
The temperature change and the liquid level change data of the seawater obtained by the liquid level sensor 4 and the temperature sensor 3 are respectively recorded by a data recorder, and the data acquisition time interval is 2 s.
After the experiment, the seawater in the sample cylinder a1 and the sample cylinder B13 was discharged by the self-priming pump 9.
The obtained change of the seawater level in the sample cell a1 is shown in fig. 2, the abscissa is time, the ordinate is the seawater level in the sample cell a1, and the maximum value of the seawater level in the sample cell a1 corresponds to the minimum value of the seawater level in the sample cell B13; the obtained temperature change of the seawater in the process is shown in fig. 3, the abscissa is time, and the ordinate is temperature.
The technical conditions of the invention are as follows:
the simulated tidal range test device has small occupied area and can be selectively installed indoors or outdoors.
The working time of the variable-frequency metering pump is adjusted through a controller in the electric control box 16, and meanwhile, the working frequency of the variable-frequency metering pump is changed in a matching manner, so that the regular rising and falling of the water level in the sample cylinder are realized.
The maximum range of simulated tidal range is determined by the size of the sample cylinder, and the sample cylinder comprises two different environments, namely a full immersion area and a tidal range area.
The simulated tidal range experimental device comprises two sample cylinders, and the working states of the variable-frequency metering pump and the electromagnetic pump are controlled by a controller in the electric control box 16, so that the two sample cylinders are in opposite tidal range states, namely a rising tide state and a falling tide state;
the medium adopted in the experiment is natural seawater, and the natural seawater is input into the sample cylinder from the water storage tank through a pipeline by the submersible pump.
According to the invention, the sea water dry-wet alternation rule in the sea tidal range area is comprehensively considered, the actual sea tidal range period and tidal range height are fitted, the real sea tidal range environment is simulated, the real-time recording of the sea water liquid level and temperature in the tidal range area is realized, and an experimental basis is provided for exploring the hydrogen permeation rule in the tidal range area.
Claims (8)
1. A simulated tidal range apparatus for exploring hydrogen permeation in a tidal range region, comprising: the device comprises a sample cylinder A (1), a water storage barrel (6), a submersible pump (7) and a sample cylinder B (13), wherein the sample cylinder A (1) is respectively communicated with the sample cylinder B (13) through a liquid conveying pipeline A (19) and a liquid conveying pipeline B (20), the liquid conveying pipeline A (19) is respectively provided with a variable-frequency metering pump A (5), an electromagnetic valve A (10) and a three-way valve B (11), the liquid conveying pipeline B (20) is respectively provided with a three-way valve C (18), an electromagnetic valve B (15) and a variable-frequency metering pump B (14), the three-way valve B (11) is connected with the three-way valve C (18) through a liquid conveying pipeline C (21), and the liquid conveying pipeline C (21) is provided with a three-way D (17); sea water is contained in the water storage barrel (6), a submersible pump (7) is arranged inside the water storage barrel (6), the submersible pump (7) is connected with a three-way valve A (8) through a liquid conveying pipeline E (23), and the three-way valve A (8) is connected with a three-way valve (17) through a liquid conveying pipeline D (22).
2. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: one interface of the three-way valve A (8) is connected with the submersible pump (7) through a liquid conveying pipeline E (23), the second interface is connected with the tee joint (17) through a liquid conveying pipeline D (22), the third interface is connected with the inlet of the self-sucking pump (9), and the outlet of the self-sucking pump (9) is connected with a liquid conveying pipeline F (24); seawater in the sample cylinder A (1) and the sample cylinder B (13) is discharged through a self-priming pump (9) and a liquid conveying pipeline F (24) through a three-way valve B (11), a three-way valve C (18), a three-way valve (17) and a three-way valve A (8).
3. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: the working states of the variable-frequency metering pump A (5) and the electromagnetic valve A (10) are opposite to the working states of the variable-frequency metering pump B (14) and the electromagnetic valve B (15), namely when the variable-frequency metering pump A (5) and the electromagnetic valve A (10) are opened or closed, the variable-frequency metering pump B (14) and the electromagnetic valve B (15) are closed or opened.
4. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: a liquid level sensor (4) is mounted in the sample cylinder A (1) or the sample cylinder B (13), and the liquid level sensor (4) is positioned at the bottommost end of the sample cylinder A (1) or the sample cylinder B (13).
5. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: and a temperature sensor (3) is arranged on the outer wall of the sample cylinder A (1) or the sample cylinder B (13), and the position of the temperature sensor (3) is lower than the lowest moisture level of the sample cylinder A (1) or the sample cylinder B (13).
6. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: and scales convenient for observing the water level change condition are respectively attached to the outer walls of the sample cylinder A (1) and the sample cylinder B (13).
7. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: the variable-frequency metering pump control system is characterized in that the variable-frequency metering pump A (5), the electromagnetic valve A (10), the variable-frequency metering pump B (14) and the electromagnetic valve B (15) are respectively connected with a controller in the electric control box (16), the controller is used for controlling the variable-frequency metering pump A (5), the electromagnetic valve A (10), the variable-frequency metering pump B (14) and the electromagnetic valve B (15), and the controller is further provided with a time setting device for setting the working time of the variable-frequency metering pump A (5), the electromagnetic valve A (10), the variable-frequency metering pump B (14) and the electromagnetic valve B (15) and realizing periodic timing opening or closing.
8. The simulated tidal range device for exploring hydrogen permeation in the tidal range area according to claim 1, wherein: the sample cylinder A (1) and the sample cylinder B (13) have the opposite tidal range state, that is, the sample cylinder A (1) is in the rising tide state or the falling tide state, and the sample cylinder B (13) is in the falling tide state or the rising tide state.
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