CN112763364B - Be used for testing antifouling performance test device of antifouling coating in ocean - Google Patents

Be used for testing antifouling performance test device of antifouling coating in ocean Download PDF

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CN112763364B
CN112763364B CN202110203866.2A CN202110203866A CN112763364B CN 112763364 B CN112763364 B CN 112763364B CN 202110203866 A CN202110203866 A CN 202110203866A CN 112763364 B CN112763364 B CN 112763364B
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CN112763364A (en
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田丽梅
靳会超
王建福
殷玥
徐浩然
商延赓
赵杰
孙霁宇
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Jilin University
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    • G—PHYSICS
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    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion
    • G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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Abstract

The invention relates to a test device for testing antifouling performance of an antifouling marine coating, wherein a water pump and a peristaltic pump are respectively connected to two water outlets of a water tank, the water pump and the peristaltic pump are communicated with a water inlet of a test pipeline pool through pipelines, and the water outlet of the test pipeline pool is communicated with the water inlet of the water tank; there is the sample mounting bracket in the test pipeline pond, and the axle of first motor stretches into in the test pipeline pond to be connected with the sample mounting bracket, and the axle of second motor stretches into in the test pipeline pond to be connected with displacement sensor, and the hub connection of third motor has rotary reciprocating mechanism, and rotary reciprocating mechanism stretches into in the test pipeline pond and pushes away the frame attach of ripples board. The device is simple and easy, high-efficient, comprehensive, has the significance to standardizing antifouling performance of antifouling coating product of ocean, can improve antifouling coating development success rate in ocean, reduces the development expense.

Description

Be used for testing antifouling performance test device of antifouling coating in ocean
Technical Field
The invention belongs to the field of antifouling performance test methods, and particularly relates to a test device for testing antifouling performance of an antifouling marine coating.
Background
In the development process of the marine antifouling coating, the evaluation of the antifouling performance of the antifouling coating is an important link.
Currently, common testing methods include laboratory testing and real sea environment testing, and laboratory testing is favored by many researchers because of its convenience and rapidity. Laboratory tests include quasi-static tests, which are generally simpler to perform, and dynamic tests, in which the antifouling coating is immersed in a static liquid containing microorganisms (e.g., bacteria, algae) for a certain period of time and then evaluated for surface fouling. Dynamic testing methods are various, such as a rotary scouring test (for example, a dynamic testing method for antifouling performance of GB/T7789-2007 ship antifouling paint), a pipeline scouring test, and other various types of dynamic testing methods. The functions of the devices are often single, only one method can be used for testing, meanwhile, the monitoring on the temperature and the salinity of the testing environment is lacked, and the growth of algae cannot provide an illumination environment, so that the marine environment cannot be truly simulated; on the other hand, after the antifouling performance test is finished, the test sample needs to be transferred to other equipment (such as a scanning electron microscope and a fluorescence microscope) for antifouling result observation, and the defects influence the accuracy and the test efficiency of the antifouling performance evaluation of the coating.
Disclosure of Invention
The invention aims to provide a test device for testing the antifouling performance of a marine antifouling coating, which is simple, efficient and comprehensive, has important significance for standardizing the antifouling performance evaluation of a marine antifouling coating product, and can improve the development success rate of the marine antifouling coating and reduce the development cost.
The purpose of the invention is realized by the following technical scheme:
a test device for testing antifouling performance of an antifouling marine coating comprises a test pipeline pool 10, a water tank 16, a first motor 2, a second motor 3, a third motor 13, a displacement sensor 7 and a wave pushing plate 11,
two water outlets of the water tank 16 are respectively connected with a water pump 14 and a peristaltic pump 15, the water pump 14 and the peristaltic pump 15 are communicated with a water inlet of the test pipeline pool 10 through a pipeline 17, and a water outlet of the test pipeline pool 10 is communicated with a water inlet of the water tank 16;
test pipeline pond 10 in have sample mounting bracket 9, the axle of first motor 2 stretches into test pipeline pond 10 in be connected with sample mounting bracket 9, the axle of second motor 3 stretches into test pipeline pond 10 in be connected with displacement sensor 7, the hub connection of third motor 13 has rotary reciprocating mechanism 12, rotary reciprocating mechanism stretch into test pipeline pond in with push away the frame attach of ripples board 11.
As a more preferable technical scheme, the system also comprises a water temperature monitoring control module 5. The water temperature monitoring control module 5 consists of a temperature sensor and a heating resistor, wherein the temperature sensor measures the temperature, and the heating resistor heats the water temperature, and the control center 1 performs feedback control.
As a more preferable technical scheme of the invention, the displacement sensor 7 is connected to a screw rod 8, and two ends of the screw rod 8 are fixed in a test pipeline pool 10.
As a more preferable technical scheme of the invention, the light source 4 is arranged in the test pipeline pool 10.
As a more preferable technical scheme of the invention, a digital salinity meter 6 is arranged inside the test pipeline pool 10.
As a more preferable technical scheme, the system also comprises a control system 1, wherein the control system 1 is in control connection with a first motor 2, a second motor 3, a third motor 13, a displacement sensor 7, a light source 4, a water temperature monitoring control module 5, a digital salinity meter 6, a water pump 14 and a peristaltic pump 15.
As a more preferable technical scheme of the invention, the rotary reciprocating mechanism 12 comprises a rotary disc 18 fixed on a third motor 13, a fixed shaft 19 at the edge of the end face of the rotary disc 18 is parallel to a pull rod 20, the pull rod 20 is connected with the fixed shaft through a connecting rod 21, rings at two ends of the connecting rod 21 are respectively sleeved on the pull rod 20 and the fixed shaft 19, push rods 22 are vertically connected with two ends of the pull rod 20, and the push rods 22 extend into the test pipeline pool 10 to be connected with a frame of the wave pushing plate 11.
As a more preferable technical scheme of the invention, the wave pushing plate 11 comprises a frame and an inclined plate fixedly connected to the frame.
As a more preferable technical solution of the present invention, the displacement sensor 7 is a laser displacement sensor.
The beneficial effects are as follows:
the antifouling performance testing device of the invention realizes various tests: quasi-static, pipeline type scouring, wave type scouring, rotary type scouring, desorption rate and a mixed type test method greatly increase the test efficiency of the antifouling performance of the antifouling coating.
The antifouling performance testing device provided by the invention can be closer to marine environment, integrates the illumination module, can be beneficial to photosynthesis of algae, can monitor the temperature and salinity of liquid in real time, and can give an alarm when the temperature and salinity of the liquid are lower than an early warning line, and also becomes the laser displacement sensor module.
Drawings
FIG. 1 is a schematic view showing the structure of an antifouling performance test apparatus according to the present invention;
FIG. 2 is a side view of an antifouling performance test apparatus according to the present invention;
FIG. 3 is a control logic diagram of the antifouling performance test apparatus of the present invention;
FIG. 4 is a logic diagram of a desorption rate test mode and a hybrid test mode of the antifouling performance test device according to the present invention;
wherein: 1. the device comprises a control system, 2, a first motor, 3, a second motor, 4, a light source, 5, a water temperature monitoring control module, 6, a digital salinity meter, 7, a laser displacement sensor, 8, a screw rod, 9, a sample mounting rack, 10, a testing pipeline pool, 11, a wave pushing plate, 12, a rotary reciprocating mechanism, 13, a third motor, 14, a water pump, 15, a peristaltic pump, 16 and a water tank.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 and 2, the invention provides a test device for testing antifouling performance of an antifouling marine coating, which comprises a test pipeline pool 10, a water tank 16, a first motor 2, a second motor 3, a third motor 13, a displacement sensor 7 and a wave pushing plate 11, wherein two water outlets of the water tank 16 are respectively connected with a water pump 14 and a peristaltic pump 15, the water pump 14 and the peristaltic pump 15 are communicated with a water inlet of the test pipeline pool 10 through a pipeline 17, and a water outlet of the test pipeline pool 10 is communicated with a water inlet of the water tank 16; test pipeline pond 10 in have sample mounting bracket 9, the axle of first motor 2 stretches into test pipeline pond 10 in be connected with sample mounting bracket 9, the axle of second motor 3 stretches into test pipeline pond 10 in be connected with displacement sensor 7, the hub connection of third motor 13 has rotary reciprocating mechanism 12, rotary reciprocating mechanism stretch into test pipeline pond in with push away the frame attach of ripples board 11.
In some embodiments, a water temperature monitoring control module 5 is also included. The water temperature monitoring control module 5 consists of a temperature sensor and a heating resistor, wherein the temperature sensor measures the temperature, and the heating resistor heats the water temperature and is subjected to feedback control by the control center 1. The water temperature monitoring and controlling module 5 can monitor the water environment and actively control the temperature when the water environment exceeds an early warning line.
In some embodiments, the laser displacement sensor 5 is connected to a screw 8, and both ends of the screw 8 are fixed inside the test tube pool 10.
In some embodiments, the test tube pool 10 contains a light source 4 inside. The light source is an LED lamp, and the light source can supplement light when an algae antifouling experiment is carried out, so that algae can normally carry out photosynthesis.
In some embodiments, the test tube pool 10 is internally provided with a digital salinity meter 6. The digital salinity meter 6 can monitor the environment of the test water body in real time, and if the environment exceeds the early warning, the control system 1 gives an alarm prompt.
In some embodiments, the system further comprises a control system, and the control system 1 is in control connection with the first motor 2, the second motor 3, the third motor 13, the displacement sensor 7, the light source 4, the water temperature monitoring control module 5, the digital salinity meter 6, the water pump 14 and the peristaltic pump 15.
In some embodiments, the rotary reciprocating mechanism 12 includes a rotary disc 18 fixed on the third motor 13, a fixed shaft 19 at an edge of an end face of the rotary disc 18 is parallel to a pull rod 20, the pull rod 20 is connected with the fixed shaft through a connecting rod 21, rings at two ends of the connecting rod 21 are respectively sleeved on the pull rod 20 and the fixed shaft 19, push rods 22 are vertically connected to two ends of the pull rod 20, and the push rods 22 extend into the test pipe pool 10 and are connected with a frame of the wave pushing plate 11.
In some embodiments, the wave pushing plate 11 comprises a frame and a tilt plate fixedly connected to the frame.
In some embodiments, the displacement sensor 7 is a laser displacement sensor.
The environmental monitoring control process of the antifouling performance test device is as follows:
the LED lamp can supplement light during the algae antifouling experiment, so that the algae can normally carry out photosynthesis; the water temperature monitoring and controlling module 5 can monitor the water body environment and actively control the temperature when the water body environment exceeds an early warning line; the digital salinity meter 6 can monitor the environment of the test water body in real time, and if the environment exceeds the early warning, the control system 1 gives an alarm prompt. The above monitoring and control are collectively controlled by the control system 1.
The working flow of the antifouling performance test device is shown in fig. 3, and specifically comprises the following steps:
one, quasi-static test mode
Firstly, a sample to be tested is fixed on the surface of a sample mounting rack 9, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0. Then, a quasi-static test mode is set in the control system 1, at the moment, the peristaltic pump 15 starts to work, the water flow of the test pipe section is in a quasi-static state, but due to the fact that the peristaltic pump 15 drives the water flow to move slowly, microorganisms, bacteria, algae and the like in the water body are distributed in the water body more uniformly instead of being settled at the bottom of the water body fast, and therefore the real marine environment is simulated more. After the set soaking test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then the amount of roughness change RδIs composed of
Rδ＝R1－R0 (1)
Since the change in surface roughness is caused by biofouling, the roughness change amount RδCan be used as an evaluation index of biofouling.
Second, pipeline type flushing mode
Firstly, fixing a sample to be tested on the surface of a sample mounting rack 9, and sensing displacementThe device 7 is driven by the second motor 3 to reciprocate on the screw rod 8, and the initial line roughness R of the surface of the sample is recorded 0. A pipeline flush mode is then set in the control system 1, at which time the water pump 14 starts to operate. After the set scouring test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then, the surface roughness variation R is carried out according to the formula (1)δThe calculation of (2).
Three, wave type flushing mode
Firstly, a sample to be tested is fixed on the surface of a sample mounting rack 9, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0. Then the control system 1 is set to wave-type flushing mode, at this time, the third motor 13 drives the rotary reciprocating mechanism (12) to start working. After the set flushing test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then, the surface roughness variation R is carried out according to the formula (1)δAnd (4) calculating.
Four, rotary type flushing mode
Firstly, a sample to be tested is fixed on the surface of a sample mounting rack 9, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0. Then, a rotary flushing mode is set in the control system 1, and the first motor 2 drives the hexagonal prism type sample mounting rack 9 to start working. After the set flushing test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded 1Then, the surface roughness variation R is carried out according to the formula (1)δThe calculation of (2).
Fifth, desorption rate test mode
The desorption rate test is a method for evaluating the desorption condition of fouling organisms by firstly soaking in a quasi-static state to enable the fouling organisms to be attached to the surface of the coating and then dynamically scouring. As shown in fig. 4, the antifouling performance testing device of the present invention has three desorption modes.
A first desorption rate test mode: quasi-static mode → pipeline type scouring
Firstly, a sample is fixed on the surface of a sample mounting frame 9, then a desorption rate test mode I is set in a control system 1, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0After which the peristaltic pump 15 starts operating. At a set soak test time t1Then, the laser displacement sensor starts working, and the line roughness R of the sample at the moment is recordedm. Then the water pump 14 starts to work and at the set flushing test time t2Then, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recordedn. The desorption rate eta of fouling organisms is
Figure BDA0002949038420000071
A desorption rate test mode two: quasi-static mode → wavy scour
Firstly, a sample is fixed on the surface of a sample mounting rack 9, and then the setting is carried out in the control system 1, the displacement sensor 7 is driven by the second motor 3 to reciprocate on the screw rod 8, and the initial line roughness R of the surface of the sample is recorded 0After which the peristaltic pump 15 starts operating. At a set soak test time t1Then, the laser displacement sensor starts working, and the line roughness R of the sample at the moment is recordedm. Then the third motor 13 starts to operate for a set flushing test time t2And then, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recordednAnd then calculating the desorption rate eta of the fouling organisms according to the formula (2).
A desorption rate test mode III: quasi-static mode → rotary flush
Firstly, fixing a sample on the surface of a sample mounting frame 9, setting the sample in a desorption rate test mode III in a control system 1, driving a displacement sensor 7 to reciprocate on a screw rod 8 by a second motor 3, and recording the initial line roughness R of the surface of the sample0After which the peristaltic pump 15 starts to operate. At a set soak test time t1Then, the laser displacement sensor is openedThe line roughness R of the sample at this time was recordedm. Then the first motor 2 starts to work and at the set flushing test time t2Then, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recordednAnd then calculating the desorption rate eta of the fouling organisms according to the formula (2).
Sixth, mixed test mode
The hybrid test mode is a measurement mode that adopts multiple flush modes. Since the washing way of the water flow in the marine environment is complex and various, the mode can be closer to the real marine environment. There are four hybrid measurement modes in total in the present invention, as shown in fig. 4.
Hybrid test mode one: pipeline type scouring and wave type scouring
Firstly, a sample is fixed on the surface of a sample mounting rack 9, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0. The hybrid test mode one is then set in the control system 1, at which time the water pump 14 and the third electric machine 13 start to operate. After the set flushing test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then, the surface roughness variation R is carried out according to the formula (1)δThe calculation of (2).
And a second hybrid test mode: pipeline type scouring and rotary type scouring
Firstly, a sample is fixed on the surface of a sample mounting frame 9, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0. The hybrid test mode two is then set in the control system 1, when the water pump 14 and the first electric machine 2 start to operate. After the set flushing test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then, the surface roughness variation R is carried out according to the formula (1)δAnd (4) calculating.
Hybrid test mode three: wave type scouring and rotary type scouring
Firstly, fixing a sample on the sample for installationThe displacement sensor 7 reciprocates on the screw rod 8 under the drive of the second motor 3 on the surface of the frame 9 to record the initial line roughness R of the surface of the sample0. A hybrid test mode three is then set in the control system 1, in which case the third electric machine 13 and the first electric machine 2 start to operate. After the set flushing test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then, the surface roughness variation R is carried out according to the formula (1)δAnd (4) calculating.
Hybrid test mode four: pipeline type scouring + wave type scouring + rotary type scouring
Firstly, a sample is fixed on the surface of a sample mounting frame 9, a displacement sensor 7 is driven by a second motor 3 to reciprocate on a screw rod 8, and the initial line roughness R of the surface of the sample is recorded0. Then, the control system 1 is set to the hybrid test mode four, in which the water pump 14, the third electric machine 13, and the first electric machine 2 are simultaneously operated. After the set flushing test time t, the laser displacement sensor starts to work again, and the line roughness R of the sample at the moment is recorded1Then, the surface roughness variation R is carried out according to the formula (1) δThe calculation of (2).
The experiment is in accordance with the practical situation of marine environment, real and reliable numerical values can be obtained, and the device and the test mode are reasonable in design, high in operability and strong in operability.
The invention solves various defects of antifouling performance monitoring, overcomes the defect that an indoor simulation related test is separated from the practical application environment of the ship, can truly, conveniently and effectively evaluate the antifouling performance, thereby becoming an important basis for evaluating the energy efficiency of the ship, providing important technical support for research and development of antifouling paint, application design of a real ship and resistance performance evaluation, effectively saving development cost and having higher economic benefit and social benefit.
The device disclosed by the invention is adopted to carry out quasi-static, pipeline type scouring, wave type scouring, rotary type scouring, desorption rate and a mixed type test method, and the result can be applied to antifouling performance evaluation, so that an important technical support is provided for application design and antifouling performance evaluation of a real ship.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "mounted" is to be understood broadly, for example, as being fixedly attached, detachably attached, or integrally attached; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in terms of specific situations to those of ordinary skill in the art.
The above examples are intended to illustrate the technical solutions of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, but not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a be used for testing antifouling performance test device of ocean antifouling coating which characterized in that: comprises a testing pipeline pool (10), a water tank (16), a first motor (2), a second motor (3), a third motor (13), a displacement sensor (7) and a wave pushing plate (11),
two water outlets of the water tank (16) are respectively connected with a water pump (14) and a peristaltic pump (15), the water pump (14) and the peristaltic pump (15) are communicated with a water inlet of the test pipeline pool (10) through a pipeline (17), and a water outlet of the test pipeline pool (10) is communicated with a water inlet of the water tank (16);
a sample mounting frame (9) is arranged in the test pipeline pool (10), a shaft of the first motor (2) extends into the test pipeline pool (10) and is connected with the sample mounting frame (9), a shaft of the second motor (3) extends into the test pipeline pool (10) and is connected with the displacement sensor (7), a shaft of the third motor (13) is connected with a rotary reciprocating mechanism (12), and the rotary reciprocating mechanism extends into the test pipeline pool and is connected with a frame of the wave pushing plate (11);
The rotary reciprocating mechanism (12) comprises a rotary disc (18) fixed on a third motor (13), a fixed shaft (19) at the edge of the end face of the rotary disc (18) is parallel to a pull rod (20), the pull rod (20) is connected with the fixed shaft through a connecting rod (21), rings at two ends of the connecting rod (21) are respectively sleeved on the pull rod (20) and the fixed shaft (19), push rods (22) are vertically connected at two ends of the pull rod (20), and the push rods (22) extend into the test pipeline pool (10) to be connected with a frame of the wave pushing plate (11);
the wave pushing plate (11) comprises a frame and an inclined plate fixedly connected to the frame.
2. The test device for testing the antifouling property of the marine antifouling coating as claimed in claim 1, further comprising a water temperature monitoring and controlling module (5).
3. The test device for testing the antifouling property of the marine antifouling coating as claimed in claim 1, wherein the displacement sensor (7) is connected to a screw rod (8), and two ends of the screw rod (8) are fixed inside the test pipeline pool (10).
4. The test device for testing the antifouling property of the marine antifouling coating as claimed in claim 1, wherein the light source (4) is arranged inside the test pipeline pool (10).
5. The test device for testing the antifouling property of the marine antifouling coating as claimed in claim 1, wherein the test pipeline pool (10) is internally provided with a digital salinity meter (6).
6. The test device for testing the antifouling property of the marine antifouling coating is characterized by further comprising a control system (1), wherein the control system (1) is in control connection with the first motor (2), the second motor (3), the third motor (13), the displacement sensor (7), the light source (4), the water temperature monitoring control module (5), the digital salinity meter (6), the water pump (14) and the peristaltic pump (15).
7. The test device for testing the antifouling property of the marine antifouling coating as claimed in claim 1, wherein the displacement sensor (7) is a laser displacement sensor.
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