Apparatus for inspection of Anti-rust performance

Abstract

A corrosion prevention performance testing device according to one embodiment of the present invention comprises a chamber having an internal space in which seawater is stored and a specimen coated with paint is mounted; a lower mounting bracket provided on the lower surface inside the chamber and having a mounting groove formed therein for the lower end of the specimen to be seated; and an upper mounting bracket provided on the upper part of the lower mounting bracket inside the chamber, detachably attached to the inside of the chamber, and mounted so as not to submerge the specimen in seawater.

Description

Technology Field

[0001] The present invention relates to a corrosion prevention performance testing device, and more specifically, to a corrosion prevention performance testing device capable of testing the corrosion prevention performance of a paint applied to the inside of a ship's water ballast tank. Background Technology

[0002] Generally, seawater is filled into or drained from a ship's ballast tanks for operation after loading or unloading cargo.

[0003] At this time, the seawater level inside the tank varies depending on the cargo loading volume of the ship, and seawater of different temperatures and compositions is stored depending on the region where the ship operates, and various types of sterilizing substances and neutralizing substances thereof may be introduced to sterilize the stored seawater.

[0004] In addition, due to sloshing caused by the influence of waves and other factors during ship operation, the interior of the ballast water tank is placed in an environment where irregular / discontinuous or continuous loads are applied.

[0005] For this reason, corrosion resistance plays a very important role in the paint applied to the inside of ballast water tanks.

[0006] However, considering the internal environment of ballast water tanks, there is currently no suitable equipment available to test the anti-corrosion performance of paints applied to the interior of ballast water tanks.

[0007] Accordingly, the need was raised for equipment technology capable of testing the anti-corrosion performance of paints by simulating various conditions inside the ballast water tank. Prior art literature

[0008] Republic of Korea Published Utility Model No. 20-2018-0002536 The problem to be solved

[0009] The objective of the present invention is to provide a corrosion prevention performance testing device capable of testing the corrosion prevention performance of a paint applied to the interior of a ship's ballast water tank.

[0010] The technical problems to be solved by the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which the present invention belongs from the description below. means of solving the problem

[0011] To solve the problem described above, the present invention comprises a chamber having an internal space in which seawater is stored and a specimen coated with paint is mounted; a lower mounting bracket provided on the lower surface inside the chamber and having a mounting groove formed therein for the lower end of the specimen to be seated; and an upper mounting bracket provided on the upper part of the lower mounting bracket inside the chamber, detachable from the inside of the chamber, and mounted so as not to submerge the specimen in seawater.

[0012] Additionally, the upper support includes a pair of inclined members that form a predetermined incline from the lower surface of the chamber and a horizontal member arranged perpendicular to the inclined members, on which a specimen is mounted. The horizontal member is fitted into one of a plurality of fixing grooves provided at predetermined intervals on the pair of inclined members to allow for height adjustment.

[0013] In addition, the present invention further comprises a circulation unit having a storage tank in which seawater is stored, a transfer line connecting the interior of the storage tank and the chamber, and a circulation pump that generates a driving force to circulate seawater between the storage tank and the chamber through the transfer line.

[0014] In addition, a separator is provided to divide the internal space of the chamber into two halves, and both ends of the separator form a gap with the side parts of the chamber, and the circulation section controls the flow of seawater in one direction through the gap.

[0015] In addition, the specimen is a specimen coated with paint used in ballast tanks, and includes a first specimen mounted on a lower support and completely submerged in seawater in the center of the chamber, a second specimen mounted on a lower support and partially submerged in seawater on the inner surface of the chamber, and a third specimen mounted on an upper support and not submerged in seawater, wherein the first specimen and the second specimen are arranged in mutually perpendicular directions, and it is possible to inspect the immersion and condensation phenomena on the specimen that occur as seawater flows into and out of the chamber. Effects of the invention

[0016] According to one embodiment of the present invention, there is an effect of easily testing the anti-corrosion performance of a paint applied to the inside of a ship's ballast water tank.

[0017] The effects obtainable from the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0018] FIG. 1 is a perspective view of a rust prevention performance inspection device according to one embodiment of the present invention. FIG. 2 is a drawing showing a lower support according to one embodiment of the present invention. FIG. 3 is a drawing showing an upper support according to an embodiment of the present invention. FIG. 4 is a drawing showing a circulation unit according to one embodiment of the present invention. FIG. 5 is a drawing showing a temperature sensor, a water level sensor, a heater, and a bubble generator according to one embodiment of the present invention. FIG. 6 is a diagram showing a method of arranging specimens according to one embodiment of the present invention. Specific details for implementing the invention

[0019] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0020] The detailed description disclosed below, together with the attached drawings, is intended to describe exemplary embodiments of the present invention and is not intended to represent the only embodiment in which the present invention can be practiced.

[0021] In order to clearly explain the invention in the drawings, parts unrelated to the explanation may be omitted, and the same reference numerals may be used for identical or similar components throughout the specification.

[0022] In embodiments of the present invention, expressions such as “or”, “at least one”, etc. may represent one of the words listed together or a combination of two or more.

[0023] In the embodiments of the present invention below, the size, thickness, and shape of each component are illustrated in an exaggerated manner for convenience of explanation, and the actual anti-corrosion performance testing device may have different sizes and shapes.

[0024] Additionally, the connection structure of the illustrated wiring is depicted in a simplified manner for convenience, and different connection forms may be applied. Although the upper, lower, and side parts are indicated based on specific components, this is for the convenience of explanation and may be interpreted as a direction different from the designated direction depending on the rotation or arrangement of the device.

[0025] Generally, seawater is filled into or drained from a ship's ballast tanks for operation after loading or unloading cargo.

[0026] At this time, the seawater level inside the tank varies depending on the cargo loading of the ship, the seawater temperature and composition vary depending on the region where the ship operates, and various types of sterilizing substances and neutralizing substances for sterilizing the stored seawater may be included.

[0027] In addition, due to sloshing caused by the influence of waves and other factors during ship operation, the interior of the ballast water tank is placed in an environment where irregular / discontinuous or continuous loads are applied.

[0028] For this reason, corrosion resistance plays a very important role in the paint applied to the inside of ballast water tanks.

[0029] However, considering the internal environment of ballast water tanks, there is currently no suitable equipment available to test the anti-corrosion performance of paints applied to the interior of ballast water tanks.

[0030] The anti-corrosion performance testing device according to one embodiment of the present invention was devised due to such technical necessity and has the advantage of being able to test the anti-corrosion performance of a paint by considering the actual internal environment of a ballast water tank.

[0031] The anti-corrosion performance testing device of the present invention, to be described below, relates to a technology for testing the anti-corrosion performance of paint for ballast water tanks.

[0032] The application of the present invention is particularly suitable for testing the anti-corrosion performance of paints used inside ship ballast tanks, but the application is not limited thereto; the present invention can be applied to any object requiring anti-corrosion performance testing considering a specific environment.

[0033] Hereinafter, a rust prevention performance inspection device according to one embodiment of the present invention will be described.

[0034] FIG. 1 is a perspective view of a rust prevention performance inspection device according to one embodiment of the present invention, FIG. 2 is a drawing showing a lower mounting bracket according to one embodiment of the present invention, and FIG. 3 is a drawing showing an upper mounting bracket according to one embodiment of the present invention.

[0035] Referring to FIGS. 1 to 3, the anti-corrosion performance inspection device (100) of the present invention may include a chamber (110), a lower support (120), and an upper support (130).

[0036] First, the chamber (110) has an internal space in which seawater is stored and a specimen (30) coated with paint is mounted.

[0037] The upper part of the chamber (110) may be open so that a specimen (30) can be mounted into the internal space, and a cover member covering the upper part may be provided.

[0038] Next, the lower support (120) is provided on the lower surface inside the chamber (110) and is configured to form a seating groove (121) on which the lower part of the specimen (30) is seated.

[0039] The seating groove (121) may be provided to surround the edge of the lower surface of the chamber (110), and the seating groove (121) may also be provided in the center so that the specimen (30) is seated in the center of the lower surface of the chamber (110).

[0040] The shape of the seating groove (121) is not limited to the drawing and can be provided in various forms on the lower surface or side surface of the chamber (110).

[0041] Next, the upper support (130) is provided on the upper part of the lower support (120) inside the chamber (110), is detachable from the inside of the chamber (110), and is provided so that the specimen (30) is mounted on the upper part so as not to be submerged in seawater.

[0042] At this time, the upper support (130) may include a pair of inclined members (131) and a horizontal member.

[0043] The inclined members (131) may be provided as a pair forming a predetermined slope from the lower surface of the chamber (110).

[0044] The horizontal member is positioned to be orthogonal to the inclined member (131) and can be arranged so that a specimen (30) is mounted on the upper part.

[0045] As the upper support (130) includes an inclined member (131), the specimen (30) mounted on the upper support (130) is positioned to have a predetermined inclination, so that water droplets generated as seawater evaporates and condenses or condenses on the surface of the specimen (30) can flow down along the specimen (30).

[0046] Through this, the advantage is that the environment in which seawater evaporated inside the actual ballast water tank condenses on the surface of the ceiling and flows down along the inner wall can be easily implemented inside the chamber (110) of the present invention.

[0047] Additionally, in one embodiment, the horizontal member (133) may be fitted into one of a plurality of fixing grooves (132) provided at predetermined intervals on a pair of inclined members (131) so as to be adjustable in height.

[0048] Accordingly, the height of the horizontal member can be adjusted according to the specifications of the specimen (30) of various sizes, so that easy mounting is possible regardless of the size of the specimen (30).

[0049] That is, by arranging the specimen (30) at various positions and angles inside the chamber (110), an environment similar to the actual internal conditions of a ballast water tank is created, thereby providing the advantage of enabling more precise anti-corrosion performance testing.

[0050] When the present invention includes both the lower support (120) and the upper support (130) described above, there is an advantage in that an environment can be created to implement deformation of the paint due to immersion and condensation phenomena occurring on the specimen (30) as seawater flows into and out of the chamber (110).

[0051] In the case of the specimen (30) mounted on the lower support (120), it becomes completely submerged in seawater, causing immersion, and in the case of the specimen (30) mounted on the upper support (130), seawater evaporates and condenses on the surface of the specimen (30), causing deformation on the surface of the specimen (30) coated with paint.

[0052] By measuring the anti-corrosion performance resulting from such deformation, it is possible to easily inspect the anti-corrosion performance against paint deformation caused by sedimentation and condensation occurring on the inner walls and ceiling of the actual ballast water tank.

[0053] Above, we have examined the basic configuration of a rust prevention performance inspection device according to one embodiment of the present invention.

[0054] However, the anti-corrosion performance inspection device according to one embodiment of the present invention may also be provided in various forms as follows.

[0055] A corrosion prevention performance inspection device according to one embodiment of the present invention may further include the configuration of a circulation unit.

[0056] FIG. 4 is a drawing showing a circulation unit according to one embodiment of the present invention.

[0057] Referring to FIG. 4, the circulation unit (140) may be equipped with a storage tank (141), a transfer line (142), and a circulation pump (143).

[0058] Seawater is stored in the storage tank (141), and the transfer line (142) connects the storage tank (141) and the interior of the chamber (110) described above.

[0059] The circulation pump (143) functions to generate a driving force to circulate seawater between the storage tank (141) and the chamber (110) through the transfer line (142).

[0060] In one embodiment, a separator (111) that divides the internal space of the chamber (110) into two halves may be provided.

[0061] Both ends of the separation membrane (111) may be arranged to form a gap with the side portion of the chamber (110), and the circulation portion (140) may control the seawater to flow in one direction through this gap.

[0062] As the anti-corrosion performance inspection device of the present invention further includes a circulation unit (140), the seawater flow inside the actual ballast water tank is implemented inside the chamber (110), thereby providing the advantage of being able to inspect the anti-corrosion performance in a sloshing environment caused by waves during ship operation.

[0063] In addition, since the water level inside the chamber (110) can be controlled by controlling the circulation pump (143) of the circulation unit (140), there is an advantage in that an environment in which the seawater level changes during the process of loading or unloading cargo of a ship can be implemented within the chamber (110) of the present invention.

[0064] Accordingly, since it is possible to test various anti-corrosion performances in an environment similar to the actual internal environment of a ballast water tank, it has the effect of increasing the accuracy of the inspection.

[0065] In addition, a rust prevention performance inspection device according to one embodiment of the present invention may be configured to further include a temperature sensor, a water level sensor, a heater, and a bubble generator.

[0066] FIG. 5 is a drawing showing a temperature sensor, a water level sensor, a heater, and a bubble generator according to one embodiment of the present invention.

[0067] Referring to FIG. 5, all of the above-described configurations can be provided at the bottom of the chamber (110) which is submerged in seawater inside the chamber (110), and in particular, the water level sensor (113) can be provided on the inner surface of the chamber (110) at a height corresponding to the water level of the seawater.

[0068] Various types of water level sensors (113) can be applied, such as a method of detecting the water level by forming an electrode rod at the end, a method of measuring the water level by detecting ultrasonic waves reflected from the water surface, a method of measuring the water level through water pressure, a capacitive method, and a semiconductor-type water level sensor.

[0069] Along with this water level sensor (113), an overflow pipe may be further provided on the inner side of the chamber (110).

[0070] The overflow pipe can be installed at a height corresponding to a preset water level, and when seawater exceeds the preset water level, it can be arranged to flow into the overflow pipe and be drained into the storage tank described above.

[0071] In addition, when the seawater is below a preset safety level, the power supply to the heater (114), bubble generator (115), and circulation pump may be automatically cut off to ensure the safety of the anti-corrosion performance inspection device.

[0072] The heater (114) has the function of raising the temperature of the seawater based on the temperature value measured by the temperature sensor (112) described above.

[0073] At this time, in order to create a more diverse environment for seawater, the configuration of a sterilizer may further include introducing various types of sterilizing substances and neutralizing substances thereof into the chamber (110) for sterilizing seawater.

[0074] Accordingly, the difference in seawater temperature and the difference in seawater composition that occur depending on the region where the ship operates can be realized within the chamber (110), and as a result, there is an effect of being able to perform a more accurate inspection of anti-corrosion performance.

[0075] In the case of the bubble generator (115), bubbles are generated in the seawater inside the chamber (110) to create a shape similar to actual waves in order to inspect the deformation and corrosion of the paint caused by seawater waves.

[0076] The configuration of the above-described temperature sensor (112), water level sensor (113), heater (114), and bubble generator (115) can be configured to be controlled by a controller (150) separately provided outside the chamber (110).

[0077] The anti-corrosion performance testing device of the present invention has the advantage of being able to create a flow, temperature, and water level of seawater inside the chamber (110) similar to that inside an actual ballast water tank by including the above-described configurations.

[0078] Furthermore, using the anti-corrosion performance inspection device according to one embodiment of the present invention, the following arrangement of specimens and anti-corrosion performance inspection thereof are possible.

[0079] FIG. 6 is a diagram showing a method of arranging specimens according to one embodiment of the present invention.

[0080] Referring to FIG. 6, the specimen (30) of the present invention may include a first specimen (31), a second specimen (32), and a third specimen (33), as the specimen (30) is coated with paint used in ballast tanks.

[0081] The first specimen (31) is mounted on the lower support (120) and arranged to be completely submerged in seawater in the central part of the chamber (110), and the second specimen (32) can be mounted on the lower support (120) and arranged to be partially submerged in seawater on the inner surface of the chamber (110).

[0082] Additionally, the third specimen (33) can be mounted on the upper support (130) so as not to be submerged in seawater.

[0083] By using such a method of arranging specimens (30), the seawater level inside the tank varies according to the actual cargo loading of the ship, thereby providing the advantage of being able to implement a completely submerged part, a part where the submersion status changes depending on the seawater level, and a part that is not submerged regardless of the seawater level.

[0084] In one embodiment, the first specimen (31) and the second specimen (32) are arranged to be perpendicular to each other based on the flow of seawater, thereby making it easy to inspect the anti-corrosion performance of the paint against seawater with a multi-angle flow.

[0085] In particular, for parts that are not directly exposed to seawater, the paint on the tank ceiling may also be deformed due to condensation caused by variations in seawater temperature depending on the region where the ship operates.

[0086] The present invention has the advantage of being able to test the anti-corrosion performance against such condensation by using a third specimen (33) to simulate the condensation phenomenon at the ceiling of the tank in a manner similar to the actual situation.

[0087] In this case, in one embodiment, the first specimen (31) and the second specimen (32) may be arranged in mutually perpendicular directions, and may also be arranged with various angle differences in addition to the perpendicular directions.

[0088] Accordingly, by implementing both the case where the flow of seawater hits the inner wall in front of the actual ballast water tank and the environment where the flow of seawater flows along the inner wall inside the chamber (110) of the present invention, there is an advantage in that it is possible to perform anti-corrosion performance testing considering various cases.

[0089] In particular, by adopting both a configuration where the seawater flow strikes the surface of the specimen and a configuration where the seawater flow runs along the surface of the specimen, it is possible to simulate various angles at which the inner wall of the tank is struck according to the seawater flow in an actual ballast water tank.

[0090] The anti-corrosion performance inspection device of the present invention described above is not limited to the shape and form provided as described above, and various modifications and variations are possible in the technical field to which the present invention belongs.

[0091] As described above, using the anti-corrosion performance inspection device according to one embodiment of the present invention can provide the following advantages.

[0092] Using the anti-corrosion performance inspection device of the present invention has the advantage of being able to inspect the anti-corrosion performance of not only the lower part of the tank interior that is completely submerged in seawater, but also the inner surface of the tank that is partially submerged in seawater and the ceiling part that is not submerged in seawater.

[0093] Accordingly, there is an advantage in being able to inspect both the corrosion prevention performance caused by immersion and condensation phenomena on the specimen by seawater.

[0094] In addition, by configuring a separation membrane inside the chamber to facilitate the smooth flow of seawater and allowing for various placement angles of the specimen relative to the seawater flow, it is possible to create an environment equivalent to that inside an actual ballast water tank.

[0095] The embodiments of the invention disclosed in this specification and drawings are provided merely as specific examples to facilitate the explanation of the technical content of the invention and to aid in understanding the invention, and are not intended to limit the scope of the invention.

[0096] Accordingly, the scope of the present invention should be interpreted as including all modifications or variations derived based on the technical concept of the present invention, in addition to the embodiments disclosed herein. Explanation of the symbols

[0097] 100: Anti-corrosion performance inspection device 110: Chamber 111 : Separator 112 : Temperature sensor 113 : Water level sensor 114 : Heater 115 : Bubble generator 120 : Lower support 121 : Settling Home 130 : Upper support 131 : Inclined member 132 : Fixed groove 133 : Horizontal member 140 : Circulatory section 141 : Storage tank 142 : Transfer line 143 : Circulation pump 150 : Controller 30: Psalm 31: The First Psalm 32: Second Psalm 33: The Third Psalm

Claims

Claim 1 A corrosion prevention performance testing device comprising: a chamber having an internal space in which seawater is stored and a specimen coated with paint is mounted; a lower mounting bracket provided on the lower surface inside the chamber and having a mounting groove formed therein for the lower end of the specimen to be seated thereon; and an upper mounting bracket provided on the upper part of the lower mounting bracket inside the chamber, detachably attached to the interior of the chamber, and mounted thereon so as not to be submerged in the seawater, wherein the upper mounting bracket comprises a pair of inclined members forming a predetermined incline from the lower surface of the chamber; and a horizontal member arranged perpendicular to the inclined members and mounted thereon, wherein the specimen comprises a third specimen mounted on the upper part of the horizontal member so as not to be submerged in the seawater, and positioned to have a predetermined incline as it leans against the inclined members, and wherein water droplets generated as the seawater evaporates and condenses or condenses on the surface of the third specimen flow down along the surface of the third specimen. Claim 2 In claim 1, the horizontal member is a height-adjustable anti-corrosion performance inspection device in which the horizontal member is fitted into one of a plurality of fixing grooves provided at predetermined intervals on the pair of inclined members. Claim 3 A corrosion prevention performance inspection device according to claim 1, further comprising: a storage tank in which the seawater is stored; a transfer line connecting the interior of the storage tank and the chamber; and a circulation unit having a circulation pump that generates a driving force to circulate the seawater between the storage tank and the chamber through the transfer line. Claim 4 In claim 3, a separator is provided to divide the internal space of the chamber into two halves, and both ends of the separator form a gap with the side parts of the chamber, and the circulation part controls the seawater to flow in one direction through the gap, thereby forming a corrosion prevention performance inspection device. Claim 5 In claim 1, the specimen further comprises: a first specimen, which is a specimen coated with paint used in ballast tanks and is mounted on a lower support and is completely submerged in seawater in the central part of the chamber; and a second specimen, which is mounted on a lower support and is partially submerged in seawater on the inner surface of the chamber, wherein the first specimen and the second specimen are arranged in mutually perpendicular directions, and an anti-corrosion performance inspection device capable of inspecting immersion and condensation phenomena occurring on the specimens as seawater flows into and out of the chamber.

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