CN113777230A - Marine organism anti-fouling test bed device and method - Google Patents
Marine organism anti-fouling test bed device and method Download PDFInfo
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- CN113777230A CN113777230A CN202110942899.9A CN202110942899A CN113777230A CN 113777230 A CN113777230 A CN 113777230A CN 202110942899 A CN202110942899 A CN 202110942899A CN 113777230 A CN113777230 A CN 113777230A
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- 238000012360 testing method Methods 0.000 title claims abstract description 225
- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000013535 sea water Substances 0.000 claims abstract description 35
- 238000005516 engineering process Methods 0.000 claims abstract description 22
- 239000003814 drug Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 6
- 239000002519 antifouling agent Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000013100 final test Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
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- 238000012544 monitoring process Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003750 molluscacide Substances 0.000 description 1
- 230000002013 molluscicidal effect Effects 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/32—Paints; Inks
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Abstract
The invention belongs to the technical field of marine organism antifouling damage, and particularly discloses a marine organism antifouling damage test bench device and a marine organism antifouling damage test bench method, wherein the marine organism antifouling damage test bench device comprises a water inlet tank, a seawater intake pipeline is arranged on one side of the water inlet tank, a test channel is arranged on the other side of the water inlet tank, and the test channel comprises a blank test pipe section and a test pipe section module; the inner bottom wall of the water inlet tank is provided with a water inlet tank overflow weir plate and a grating, and the grating is positioned on one side of the water inlet tank overflow weir plate, which is far away from the seawater intake pipeline; one ends of the blank test pipe section and the test pipe section module are respectively provided with a concrete flow channel, a test hanging plate, a flow weir and a filter screen are arranged in the concrete flow channel, and the test hanging plate is positioned on one side of the filter screen, which is far away from the water inlet tank; one side of the concrete flow channel, which is far away from the water inlet tank, is communicated with a tail water pool through a connecting pipe, and one side of the tail water pool, which is far away from the concrete flow channel, is provided with a first drainage pipe; the marine organism anti-fouling technology is simple in structure and high in reliability, and can test and verify the effectiveness of the marine organism anti-fouling technology applied to a seawater system.
Description
Technical Field
The invention relates to the technical field of marine organism anti-fouling, in particular to a marine organism anti-fouling test bed device and a marine organism anti-fouling test bed method.
Background
The operation practice of the seawater system shows that a large amount of marine organisms are attached, grown and propagated in the seawater system, so that: the diameter of the seawater pipeline is reduced, and the flow is insufficient; the degradation and corrosion process of the seawater pipeline are accelerated, and the reliability of equipment is reduced; large areas of shedding lead to system plugging. The traditional sodium hypochlorite elimination and killing method has the effectiveness problem, still needs to be cleaned by great manpower and material resources, has the environmental protection problem, has the influence on marine organisms in the surrounding sea area due to residual chlorine discharge, and on the basis, a plurality of novel anti-fouling technologies appear in succession, but lacks an effective dynamic verification method, and has obstacles in the engineering application of the novel anti-fouling technologies.
Chinese patent literature: [1] CN110726804A, a rapid evaluation method for the antifouling performance of a bionic and low-surface-energy marine antifouling paint coating. The content is static culture in artificially cultured algae and hanging plate coating evaluation. [2] CN201910222900.3, an antifouling coating performance evaluation device and method for simulating seawater pumping and storing operation conditions. The content is as follows: and the test solution circulating system and the test unit are used for evaluating the performance of the antifouling coating of the flow passage component. [3] CN203824988U, a device for detecting the effect of a seawater direct-current cooling water molluscicide. The content is as follows: feed water pump, marine life monitoring case, charge device and feed water pump system pass through the pipeline UNICOM, observe the effect of killing of experimental live body in the monitoring case. [4] CN108344849A/B, a dynamic test system for water intaking in long distance. The content is as follows: the test device comprises a water inlet, a water outlet and test tubes, wherein the test tubes are connected in series to simulate different growth stages of fouling organisms and research an fouling change mechanism. Wherein [1] is only applicable to the screening development stage of the coating antifouling paint. [2] And the closed loop circulation is adopted, so that the real seawater quality working condition is difficult to consider. [3] The killing effect is mainly observed. [4] Only for evaluating the growth of marine organisms in the system. The methods cannot provide effective support for the engineering application of the novel anti-fouling technology.
The invention introduces a marine organism anti-fouling test bed device and a marine organism anti-fouling test bed method, which are used for simulating the characteristics of a seawater system, verifying the effectiveness of an anti-fouling technology by using a dynamic seawater flow test, and verifying that the anti-fouling technology after the test is passed can be applied in an engineering way, so that the engineering risk is reduced, and the marine organism anti-fouling test bed device is simple in structure and high in reliability.
Disclosure of Invention
The invention aims to provide a marine organism antifouling test bench device and a marine organism antifouling test bench method, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a marine organism antifouling test bench device and a method thereof comprise a water inlet tank, wherein one side of the water inlet tank is provided with a seawater intake pipeline, the other side of the water inlet tank is provided with a test channel, and the test channel comprises a blank test pipe section and a test pipe section module; the blank test pipe section and the test pipe section module respectively comprise a flow measuring device, the inner bottom wall of the water inlet tank is provided with a water inlet tank overflow weir plate and a grating, and the grating is positioned on one side of the water inlet tank overflow weir plate, which is far away from the seawater intake pipeline; concrete flow channels are arranged at the ends, far away from the water inlet tank, of the blank test pipe section and the test pipe section module, a test hanging plate, a flow weir and a filter screen are arranged in each concrete flow channel, the test hanging plate is positioned between the flow weir and the filter screen, and the test hanging plate is positioned at one side, far away from the water inlet tank, of the filter screen; one side of the concrete runner, which is far away from the water inlet tank, is communicated with a tail water pool through a connecting pipe, and one side of the tail water pool, which is far away from the concrete runner, is provided with a first drainage pipe.
As a preferred technical solution of the present invention, the blank test pipe section includes 1 group of blank test channels, the test pipe section module includes 3 groups of parallel test channels, each group of test channels includes a test pipe section module, a valve and an observation hole, and the valve is disposed near the concrete flow channel; and a medicament adding device is arranged at the position of the 3 groups of parallel testing channels, which is close to the water inlet tank.
As a preferable technical scheme, the overflow weir plate and the grating of the water inlet tank are inserted into a reserved groove arranged on the bottom wall in the water inlet tank.
As a preferable technical scheme, the test hanging plate and the filter screen are inserted in the concrete flow channel.
As a preferred technical solution of the present invention, a second drain pipe is disposed below one side of the water inlet tank, and is configured to drain seawater overflowing from the overflow weir plate of the water inlet tank.
The invention also provides a marine organism antifouling test method, which comprises the following steps:
step 1: preparing a test, namely preparing four groups of test channels (which can be expanded according to the type of a marine organism antifouling technology test), wherein 1 group is a blank test channel, 3 groups are parallel test channels, a test hanging plate and a filter screen are placed in a concrete flow channel, the size of the test channels and a flow material are set according to an application scene, and the four groups of test channels are kept consistent;
step 2: starting a test, and adjusting the height of the overflow weir plate so as to adjust the liquid level of the water inlet tank, wherein the liquid level is used for ensuring that the immersion depth of the test hanging plate is more than or equal to 0.2 m; the seawater in the sea area of the site is continuously taken through the seawater intake pipeline and enters the water inlet tank, and the grating is used for intercepting large sundries to avoid the blockage of the test channel; the sea water in the sea area is tested and finally discharged out of the whole testing device through the tail water pool and the first water drainage pipe;
and step 3: adding a medicament, namely adding marine organism antifouling medicaments to the 3 groups of parallel test channels through a medicament adding device;
and 4, step 4: calibrating seawater flow, adjusting the flow of four groups of test channels through valves, calculating the flow of the four groups of test channels according to the water head on the flow weir, checking the value of the flow measuring device, and continuously recording and storing the value of the flow measuring device;
and 5: recording the process, namely observing the attachment quantity and growth condition of marine organisms in the four groups of test channels, on the test hanging plate and on the filter screen in a certain period (such as every week), and comparing and recording the four groups of channels; stopping water supply in a certain period (such as every month), emptying water in the four groups of test channels, checking the attachment quantity and growth condition of marine organisms in the blank test pipe section and the test pipe section module through the observation hole after emptying, and comparing and recording the four groups of channels; if the fouling organism coverage area of any test pipe section module, the filter screen, the test hanging plate and the concrete flow channel of the 3 groups of parallel test channels is observed to be more than 10 percent, the test is terminated, and the marine organism fouling prevention technology is judged to be not in accordance with the requirement; remarking: the observation time is shortened as much as possible to avoid the death of the attached marine organisms;
step 6: according to the liquid level of the water inlet tank, the liquid level in front of the flow weir and the data of the flow meter, comparing the variation trend of the resistance coefficient of each test channel, if the resistance coefficient of any channel of 3 groups of parallel test channels exceeds the initial 20%, terminating the test, and judging that the marine organism anti-fouling technology does not meet the requirement;
and 7: based on a long-time (not less than 6 months) dynamic water flow test, the effectiveness of the added marine organism antifouling agent is contrastively verified; after the final test is finished, when the marine organism fouling of 1 group of blank test channels is serious, the fouling organism coverage area on any test pipe section module, the filter screen, the test hanging plate and the concrete flow channel of 3 groups of parallel test channels is obviously lower than that of the blank test channels, and the coverage area is less than or equal to 10 percent of the total area, and the resistance coefficient of any channel of the three groups of parallel test channels is lower than the initial 120 percent, the marine organism fouling prevention technology is judged to meet the requirements.
The test bench provided by the invention is also suitable for the test verification of marine organism antifouling paint, during antifouling test, the blank test pipe section is not coated with antifouling coating, the inner wall of the pipeline test section of the test pipe section module, the inner wall of the concrete flow channel, the test hanging plate and the filter screen are coated with antifouling coating, and the test verification of marine organism antifouling paint can be carried out by canceling a medicament adding device.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the test bench device provided by the invention, sea water in the sea area of the site is continuously taken into the test bench, and the attachment condition of marine organisms is periodically checked and measured through a long-time dynamic water flow test, so that the effectiveness of the marine organism anti-fouling technology applied to a sea water system can be tested and verified, the anti-fouling technology after the test is passed can be applied in an engineering manner, the engineering risk is reduced, the structure is simple, and the reliability is high.
2. The test hanging plate, the grating and the filter screen are installed through insertion, the operation is simple, the disassembly and the assembly are convenient, when various medicaments and coating technologies need to be tested, corresponding test modules can be correspondingly added to the rack, namely, parallel control groups are added, the expandability is strong, and the use is flexible and convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the marine organism antifouling test bench device of the present invention;
FIG. 2 is a schematic top view of the marine organism antifouling test bench device according to the present invention.
In the figure: 1. a seawater intake pipeline; 2. an overflow weir plate of the water inlet tank; 3. a water inlet tank; 4. a flow measuring device; 5. a blank test tube section; 6. testing the pipe section module; 7. a valve; 8. testing the hanging plate; 9. a concrete runner; 10. a flow weir; 11. a tail water pool; 12. a first drain pipe; 13. a medicament adding device; 14. an observation hole; 15. filtering with a screen; 16. a grid; 17. and a second water discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: a marine organism antifouling test bench device and a method thereof comprise a water inlet tank 3, wherein one side of the water inlet tank 3 is provided with a seawater intake pipeline 1, the other side of the water inlet tank 3 is provided with a test channel, and the test channel comprises a blank test pipe section 5 and a test pipe section module 6; the blank test pipe section 5 and the test pipe section module 6 both comprise flow measuring devices 4, the inner bottom wall of the water inlet tank 3 is provided with a water inlet tank overflow weir plate 2 and a grating 16, and the grating 16 is positioned on one side of the water inlet tank overflow weir plate 2 away from the seawater intake pipeline 1; the blank test pipe section 5 and the test pipe section module 6 are provided with concrete flow channels 9 at ends far away from the water inlet tank 3, and a test hanging plate 8, a flow weir 10 and a filter screen 15 are arranged in the concrete flow channels 9, wherein the flow weir measures flow, the test hanging plate 8 is positioned between the flow weir 10 and the filter screen 15, and the test hanging plate 8 is positioned at one side of the filter screen 15 far away from the water inlet tank 3, so that when an antifouling agent is tested, the material of flow parts except the pipeline in an application scene is simulated, and the quantity and the material can be expanded according to the application scene; when the antifouling coating is tested, the antifouling coating is coated on the test hanging plate; one side of the concrete flow channel 9 far away from the water inlet tank 3 is communicated with a tail water pool 11 through a connecting pipe, and one side of the tail water pool 11 far away from the concrete flow channel 9 is provided with a first drainage pipe 12.
As a preferred technical solution of the present invention, the blank test pipe section 5 includes 1 group of blank test channels, the test pipe section module 6 includes 3 groups of parallel test channels, each group of test channels includes a test pipe section module, a valve 7 and an observation hole 14, and the valve 7 is disposed near the concrete flow channel 9; and a medicament adding device 13 is arranged at the position of the 3 groups of parallel test channels close to the water inlet tank 3, wherein the test pipe section module is used for simulating an application scene pipeline, and the quantity and the materials of the pipelines in the test pipe section module can be expanded according to the application scene.
Further, the water inlet tank overflow weir plate 2 and the grating 16 are inserted into a reserved groove arranged on the bottom wall of the water inlet tank 3; be convenient for carry out the dismouting to case overflow weir plate 2 and grid 16 of intaking, and then conveniently change case overflow weir plate 2 of intaking to in controlling the liquid level of case 3 of intaking.
Furthermore, the test hanging plate 8 and the filter screen 15 are inserted in the concrete runner 9.
The invention also provides a marine organism antifouling test method, which comprises the following steps:
step 1: preparing a test, namely preparing four groups of test channels (which can be expanded according to the type of a marine organism antifouling technology test), wherein 1 group is a blank test channel, 3 groups are parallel test channels, a test hanging plate 8 and a filter screen 15 are placed in a concrete runner 9, the size of the test channels and overflowing materials are set according to an application scene, and the four groups of test channels are kept consistent;
step 2: starting a test, adjusting the height of the overflow weir plate 2 so as to adjust the liquid level of the water inlet tank 3, and ensuring that the immersion depth of the test hanging plate 8 is more than or equal to 0.2 m; continuously taking on-site sea seawater through the seawater taking pipeline 1 and entering the water inlet tank 3, wherein the grating 16 is used for intercepting large sundries and avoiding the blockage of a test channel; the seawater in the test sea area is finally discharged out of the whole test device through the tail water pool 11 and the first water discharge pipe 12;
and step 3: adding a medicament, namely adding marine organism antifouling medicaments to the 3 groups of parallel test channels through a medicament adding device 13;
and 4, step 4: calibrating seawater flow, adjusting four groups of test channel flows through a valve 7, calculating the four groups of test channel flows according to the weir 10 weir water head, checking the value of the flow measuring device 4, and continuously recording and storing the value of the flow measuring device 4;
and 5: recording the process, namely observing the attachment quantity and growth condition of marine organisms in the four groups of test channels, on the test hanging plate 8 and on the filter screen 15 in a certain period (such as every week), and comparing and recording the four groups of channels; stopping water supply in a certain period (such as every month), emptying water in the four groups of test channels, checking the attaching quantity and growth conditions of marine organisms in the blank test pipe section 5 and the test pipe section module 6 through the observation hole 14 after emptying, and comparing and recording the four groups of channels; if the fouling organism coverage area of any test pipe section module, the filter screen 15, the test hanging plate 8 and the concrete runner 9 of the 3 groups of parallel test channels is more than 10 percent, the test is terminated, and the marine organism fouling prevention technology is judged to be not in accordance with the requirement; remarking: the observation time is shortened as much as possible to avoid the death of the attached marine organisms;
step 6: according to the liquid level of the water inlet tank 3, the liquid level in front of a flow weir 10 and the data of the flow meter, comparing the variation trend of the resistance coefficients of the test channels, if the resistance coefficient of any channel of the 3 groups of parallel test channels exceeds 20 percent of the initial resistance coefficient (removing the blockage on the filter screen 15 except the marine organism attachment), terminating the test, and judging that the marine organism anti-fouling technology does not meet the requirement;
and 7: based on a dynamic water flow test for not less than 6 months for a long time, the effectiveness of the added marine organism antifouling agent is contrastively verified; after the final test is finished, when the fouling organisms on 1 group of blank test channels are seriously fouled, the fouling organism coverage area on any test pipe section module, the filter screen 15, the test hanging plate 8 and the concrete flow channel 9 of 3 groups of parallel test channels is obviously lower than that of the blank test channels, and the coverage area is less than or equal to 10 percent of the total area, and the resistance coefficient of any channel of the three groups of parallel test channels is lower than the initial 120 percent (removing the blockage substances except the fouling organisms attached to the filter screen 15), the marine organism fouling prevention technology is judged to meet the requirement.
The test bench provided by the invention is also suitable for the test verification of marine organism antifouling paint, during antifouling test, the blank test pipe section 5 is not coated with antifouling coating, the inner wall of the pipe test section of the test pipe section module 6, the inner wall of the concrete runner 9, the test hanging plate 8 and the filter screen 15 are coated with antifouling coating, and the test verification of marine organism antifouling paint can be carried out by canceling a medicament adding device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The marine organism antifouling test bed device is characterized by comprising a water inlet tank (3), wherein a seawater intake pipeline (1) is arranged on one side of the water inlet tank (3), a test channel is arranged on the other side of the water inlet tank (3), and the test channel comprises a blank test pipe section (5) and a test pipe section module (6); the blank test pipe section (5) and the test pipe section module (6) both comprise flow measuring devices (4), the inner bottom wall of the water inlet tank (3) is provided with a water inlet tank overflow weir plate (2) and a grating (16), and the grating (16) is positioned on one side of the water inlet tank overflow weir plate (2) far away from the seawater intake pipeline (1); concrete flow channels (9) are respectively arranged at the ends, far away from the water inlet tank (3), of the blank test pipe section (5) and the test pipe section module (6), a test hanging plate (8), a flow weir (10) and a filter screen (15) are arranged in the concrete flow channels (9), the test hanging plate (8) is positioned between the flow weir (10) and the filter screen (15), and the test hanging plate (8) is positioned at one side, far away from the water inlet tank (3), of the filter screen (15); concrete runner (9) keep away from one side of intaking case (3) and have draft pool (11) through the connecting pipe intercommunication, one side that concrete runner (9) were kept away from in draft pool (11) is equipped with first drain pipe (12).
2. The marine organism antifouling test bench device as claimed in claim 1, wherein: the blank test pipe section (5) comprises 1 group of blank test channels, the test pipe section module (6) comprises 3 groups of parallel test channels, each group of test channels comprises a test pipe section module, a valve (7) and an observation hole (14), and the valve (7) is arranged close to the concrete flow channel (9); a medicament adding device (13) is arranged at the position of the 3 groups of parallel testing channels, which is close to the water inlet tank (3).
3. The marine organism antifouling test bench device as claimed in claim 1, wherein: the water inlet tank overflow weir plate (2) and the grating (16) are inserted into a preformed groove arranged on the bottom wall of the water inlet tank (3).
4. The marine organism antifouling test bench device as claimed in claim 1, wherein: the test hanging plate (8) and the filter screen (15) are inserted in the concrete runner (9).
5. The marine organism antifouling test bench device as claimed in claim 1, wherein: and a second drain pipe (17) is arranged below one side of the water inlet tank (3) and used for discharging seawater overflowing from the overflow weir plate (2) of the water inlet tank.
6. A method for testing marine biofouling according to any one of claims 1-5, comprising the steps of:
step 1: test preparation, four groups of test channels are prepared, wherein 1 group is a blank test channel, 3 groups are parallel test channels, a test hanging plate (8) and a filter screen (15) are placed in a concrete runner (9), the size of the test channels and overflowing materials are set according to an application scene, and the four groups of test channels are kept consistent;
step 2: starting a test, and adjusting the height of the overflow weir plate (2) so as to adjust the liquid level of the water inlet tank (3) and ensure that the immersion depth of the test hanging plate (8) is more than or equal to 0.2 m; seawater in the sea area of the site is continuously taken through the seawater intake pipeline (1) and enters the water inlet tank (3), and the grating (16) is used for intercepting large sundries to avoid the blockage of a test channel; the sea water in the sea area to be tested is finally discharged out of the whole testing device through the tail water pool (11) and the first water discharge pipe (12);
and step 3: adding a medicament, namely adding marine organism antifouling medicaments to the 3 groups of parallel test channels through a medicament adding device (13);
and 4, step 4: calibrating seawater flow, adjusting four groups of test channel flow through a valve (7), calculating the four groups of test channel flow according to a weir upper water head of a flow weir (10), checking the numerical value of a flow measuring device (4), and continuously recording and storing the numerical value of the flow measuring device (4);
and 5: recording the process, observing the attachment quantity and growth condition of marine organisms in the four groups of test channels, on the test hanging plate (8) and on the filter screen (15) in a certain period, and comparing and recording the four groups of channels; stopping water supply in a certain period, emptying water in the four groups of test channels, checking the attaching quantity and growth conditions of marine organisms in the blank test pipe section (5) and the test pipe section module (6) through the observation hole (14) after emptying, and comparing and recording the four groups of channels; if the fouling organism coverage area of any test pipe section module, the filter screen (15), the test hanging plate (8) and the concrete flow channel (9) of the 3 groups of parallel test channels is observed to be more than 10 percent, the test is terminated, and the marine organism fouling prevention technology is judged to be not in accordance with the requirement;
step 6: according to the liquid level of the water inlet tank (3), the liquid level in front of a weir of the flow weir (10) and the data of the flow meter, comparing the variation trend of the resistance coefficient of each testing channel, if the resistance coefficient of any channel of 3 groups of parallel testing channels exceeds 20 percent of the initial resistance coefficient, terminating the test, and judging that the marine organism anti-fouling technology does not meet the requirement;
and 7: based on a long-time dynamic water flow test, the effectiveness of the added marine organism antifouling agent is contrastively verified; after the final test is finished, when the marine organism fouling of 1 group of blank test channels is serious, the fouling organism coverage area of any test pipe section module, the filter screen (5), the test hanging plate (8) and the concrete runner (9) of 3 groups of parallel test channels is obviously smaller than that of the blank test channels, and the coverage area is less than or equal to 10% of the total area, and the resistance coefficient of any channel of the three groups of parallel test channels is lower than the initial 120%, the marine organism fouling prevention technology is judged to meet the requirement.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114894973A (en) * | 2022-05-05 | 2022-08-12 | 中海石油(中国)有限公司 | Test device and method for preventing underwater chemical agent from being polluted |
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| CN108371133A (en) * | 2018-04-26 | 2018-08-07 | 水利部交通运输部国家能源局南京水利科学研究院 | The experimental provision and method that a kind of in-site modeling and prevention and control aquatile are adsorbed in pipeline inner wall |
| CN209803115U (en) * | 2018-12-12 | 2019-12-17 | 广东粤海水务股份有限公司 | Test device for simulating water supply pipe network |
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| CN108371133A (en) * | 2018-04-26 | 2018-08-07 | 水利部交通运输部国家能源局南京水利科学研究院 | The experimental provision and method that a kind of in-site modeling and prevention and control aquatile are adsorbed in pipeline inner wall |
| CN209803115U (en) * | 2018-12-12 | 2019-12-17 | 广东粤海水务股份有限公司 | Test device for simulating water supply pipe network |
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| CN114894973A (en) * | 2022-05-05 | 2022-08-12 | 中海石油(中国)有限公司 | Test device and method for preventing underwater chemical agent from being polluted |
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