Ventilation system for ship

Abstract

The present invention relates to a ventilation system for a ship, and more specifically comprises: a main body unit installed in a ventilation hole of a cabin; and a filter unit provided on one side of the main body unit to filter a fluid flowing through the ventilation hole.

Description

Ventilation systems for ships

[0001] The present invention relates to a ventilation system for a ship, and more specifically, to a ventilation system for a ship that applies a high-performance ventilation cleaning filter suitable for a high-humidity environment to a ventilation port having a shape that can minimize loss of air volume and maximize filter efficiency.

[0002] Ventilation holes are designed to replace stale air with clean air or regulate temperature, creating a comfortable indoor environment. For example, Republic of Korea Patent No. 10-1195300 (October 26, 2012) discloses an installed ventilation hole that exhausts air in a radial direction.

[0003] Meanwhile, ships are much more airtight than general buildings, and natural ventilation between the inside and outside of the ship is difficult. Therefore, various indoor air pollutants can rapidly spread throughout the ship if proper ventilation or removal processes are not carried out, threatening the respiratory health of passengers and crew. Furthermore, conventional ship ventilation systems, despite facing extreme environments such as high air volumes, high concentrations of hazardous substances, high humidity, and salt damage, rely on central air conditioning filters and lack individual filtering devices for cabin ventilation ducts. As ships age, this has led to problems such as poor cabin air quality due to duct contamination.

[0004] The present invention has been devised to solve the problems of the prior art as described above, and its purpose is to provide a ventilation system for a ship that applies a high-performance ventilation cleaning filter suitable for a high-humidity environment to a ventilation port having a shape that can minimize loss of air volume and maximize filter efficiency.

[0005] The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems to be solved by the present invention that are not mentioned herein will be clearly understood by a person having ordinary skill in the technical field to which the present invention pertains from the description below.

[0006] A preferred embodiment of the present invention relates to a ventilation system for a ship, comprising: a main body installed in a ventilation opening of a cabin; and a filter provided on one side of the main body to filter a fluid flowing through the ventilation opening.

[0007] In addition, the main body according to a preferred embodiment of the present invention includes a coupling portion provided along an edge of the main body portion so that the main body portion can be coupled to an inner wall surface of the cabin, and the coupling portion is characterized in that it includes a magnet.

[0008] In addition, the main body according to a preferred embodiment of the present invention includes a sealing portion provided along an edge of the main body, and the sealing portion is characterized in that it prevents fluid from leaking through a gap between the main body and the inner wall surface of the cabin.

[0009] In addition, the main body according to a preferred embodiment of the present invention is characterized in that it includes a flow control valve provided at a lower portion of the filter section to control the flow rate of the fluid flowing through the ventilation port into the interior of the cabin after being filtered by the filter section.

[0010] In addition, the filter part according to a preferred embodiment of the present invention is characterized in that it is formed into a curved surface.

[0011] By means of solving the above problem, the ventilation system for a ship of the present invention is effective in providing a ventilation system for a ship suitable for a high-humidity environment with a ventilation port having a shape that can minimize loss of air volume and maximize the efficiency of the filter.

[0012] In addition, in the ship ventilation system of the present invention, there is an advantage in that, according to the curved design of the filter section, distortion in the direction of fluid flow is minimized, thereby minimizing performance degradation of the main air conditioner of the ship and optimizing the flow distribution of the fluid passing through the filter section. In addition, the curved design of the filter section maximizes the filtration area of ​​the filter section, thereby minimizing pressure loss at the discharge port, and the increased filtration area has the effect of increasing the lifespan of the filter section.

[0013] In addition, in the ship ventilation system of the present invention, the three-dimensional filtration layer of the filter section can be manufactured to have a thickness of 161 μm to 608 μm, the electrostatic filtration layer can be manufactured to have a thickness of 161 μm to 483 μm, the nano-filtration layer can be manufactured to have a thickness of 16 μm to 81 μm, and the support layer can be manufactured to have a thickness of 135 μm to 483 μm, and the fiber diameter of the three-dimensional filtration layer is included in the range of 15 μm to 300 μm, the fiber diameter of the electrostatic filtration layer is included in the range of 0.5 μm to 5 μm, the fiber diameter of the nano-filtration layer is included in the range of 0.5 μm or less, and the fiber diameter of the support layer is included in the range of 15 μm to 300 μm, so that the dust collection efficiency is 95.77%, and the plurality of adhesive portions are arranged in a grid shape that is inclined at an angle. The hybrid multilayer filter of the present invention and its manufacturing method have the advantage of minimizing the pressure drop value.

[0014] In addition, in the nanofiltration layer of the filter unit of the present invention, by applying ultrasonic fusing technology and optimizing the ultrasonic fusing pattern in consideration of the low adhesiveness and other bonding properties of the nanofilter material, there is an advantage in that the lost flow area can be reduced to maximize performance and improve the manufacturability of the material filter, such as bendability.

[0015] In addition, the three main layers of the three-stage filter layer, the electrostatic filter layer, and the nano-filtration layer of the filter part of the present invention are implemented as a single filter, the durability of the nano-filtration layer is improved through the support layer, the efficiency of the filter is improved by setting the main dust target for each layer, and there is an advantage in that long-life use is possible without being affected by moisture through the nano-filter of the last nano-filtration layer.

[0016] In addition, there is an advantage in that a high-efficiency / low-pressure differential long-life filter design is possible through various combinations by comparing the dust collection efficiency and pressure drop characteristics of the electrostatic filter and nano-filter of the electrostatic filter layer and nano-filter layer of the filter unit of the present invention, and for example, an E10 grade (85%) MB filter + E10 grade (85%) nano-filter = E11 grade filter (>95%).

[0017] The effects of the present invention are not limited to the effects mentioned above, and effects of the present invention not mentioned herein will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0018] FIG. 1 is a conceptual diagram showing the configuration of a ventilation system for a ship according to one embodiment of the present invention, and is a drawing showing the appearance before the filter part is installed in the mounting part.

[0019] Figure 2 is a conceptual diagram showing the configuration of a flow control valve of a vessel ventilation system according to one embodiment of the present invention.

[0020] Figure 3 is a conceptual diagram showing the opening and closing of the discharge port due to the flow control valve of the vessel ventilation system according to one embodiment of the present invention.

[0021] Figure 4 is a conceptual diagram showing the configuration of a flow control valve of a vessel ventilation system according to another embodiment of the present invention.

[0022] Figure 5 is a conceptual diagram showing the opening and closing of the discharge port due to the flow control valve of a vessel ventilation system according to another embodiment of the present invention.

[0023] FIG. 6 is a conceptual diagram showing the configuration of a ventilation system for a ship according to another embodiment of the present invention, and is a drawing showing the appearance before the filter unit is installed by sliding.

[0024] Figure 7 is a conceptual diagram showing the layered appearance of a filter section of a vessel ventilation system according to one embodiment of the present invention.

[0025] Fig. 8 is a cross-sectional view showing the internal configuration of a filter unit of a vessel ventilation system according to one embodiment of the present invention.

[0026] Fig. 9 (a) is an exemplary diagram showing the structure of a conventional filter unit, and Fig. 9 (b) is an exemplary diagram showing the configuration of a multilayer filter of a ship ventilation system according to an embodiment of the present invention.

[0027] Fig. 10 is an exemplary diagram showing the configuration of a filter unit or a three-dimensional filter layer of a vessel ventilation system according to one embodiment of the present invention.

[0028] Fig. 11 is an exemplary diagram showing the pattern of the compression part of the filter part of a ship ventilation system according to one embodiment of the present invention.

[0029] Figure 12 is a drawing showing the experimental results showing the pressure drop value according to the pattern of the compression part of the filter part of the ship ventilation system according to one embodiment of the present invention.

[0030] FIG. 13 and FIG. 14 are drawings showing a particle collection rate test report for the KS B 6141 ventilation air filter unit (2020) standard of the filter unit of a ship ventilation system according to one embodiment of the present invention.

[0031] FIG. 15 is a drawing comparing the performance of a filter unit of a ship ventilation system according to an embodiment of the present invention with that of a conventional mass-produced filter.

[0032] The terms used in this specification will be briefly explained, and the present invention will be described in detail.

[0033] The terms used in this invention have been selected from widely used, common terms, taking into account their functions. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Therefore, the terms used in this invention should be defined based on their meaning and the overall content of the invention, rather than simply their names.

[0034] When a part of a specification is said to “include” a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise stated.

[0035] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement the invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

[0036] Specific details, including the problems to be solved, means of solving them, and the effects of the invention, are included in the embodiments and drawings described below. The advantages and features of the present invention, and methods for achieving them, will become clearer with reference to the embodiments described below in detail, along with the accompanying drawings.

[0037] Hereinafter, the present invention will be described in more detail with reference to the attached drawings.

[0038] Referring to FIG. 1, a ventilation system for a ship according to a preferred embodiment of the present invention includes a main body (2000) installed in a ventilation opening of a cabin, and a filter unit (1000) provided on one side of the main body (2000) to filter a fluid flowing through the ventilation opening.

[0039] First, the filter unit (1000) is provided. The filter unit (1000) filters the fluid flowing into the cabin from the ventilation opening, thereby improving the air quality inside the cabin. At this time, the filter unit (1000) is formed in a curved shape. More specifically, the filter unit (1000) is formed in a 'U' shape with the central portion of the filter unit (1000) protruding convexly. In addition, the filter unit (1000) is formed convexly in the flow direction of the fluid flowing into the cabin through the ventilation opening. As a result, according to the curved design of the filter unit (1000), there is an advantage in that the distortion of the flow direction of the fluid can be minimized, thereby minimizing the deterioration of the performance of the main air conditioner of the ship, and the flow distribution of the fluid passing through the filter unit (1000) can be optimized. In addition, the curved design of the filter unit (1000) maximizes the filtration area of ​​the filter unit (1000), thereby minimizing the pressure loss of the discharge port (2311) described later, and the increased filtration area increases the lifespan of the filter unit (1000). In addition, the filter unit (1000) can be installed in the main body unit (2000) in a manner of being mounted on the mounting unit (2400) described later.

[0040] Typically, air exhausted through the main air conditioner of a ship is supplied to the cabin through a ventilation opening, and the ventilation system for a ship of the present invention is installed in the ventilation opening of each cabin.

[0041] Specifically, the main body (2000) is provided. The main body (2000) is installed at the end of a typical ventilation hole and is installed to finish the perforated inner wall. For example, the main body (2000) may be formed in a rectangular parallelepiped shape with an open upper portion. That is, the main body (2000) may be formed to have a cross-section in the shape of the letter 'ㄷ' with an empty space formed therein. In addition, the main body (2000) is formed in a tapered shape with a cross-sectional area that becomes wider toward the upper portion.

[0042] In addition, the main body (2000) includes a mounting portion (2400) that is formed by protruding inward from the inner surface of the main body (2000). The mounting portion (2400) provides a space in which at least a portion of the filter portion (1000) can be mounted, and may be formed in a shape corresponding to the curved shape of the filter portion (1000).

[0043] And, the main body (2000) includes a connecting portion (2100) provided along the edge of the main body (2000) so that the main body (2000) can be connected to the inner wall surface of the cabin. Typically, the ventilation hole is provided in the ceiling of the cabin, so the connecting portion (2100) is provided on the upper portion of the main body (2000). And, the connecting portion (2100) is fixed in a form inserted into a connecting frame (2110) provided in a shape corresponding to the connecting portion (2100) on the upper side of the main body (2000). In addition, the connecting portion (2100) is provided with a plurality of through holes (2101) that pass through the connecting portion (2100) and the connecting frame (2110) so that bolts can be fastened thereto. In addition, the connecting portion (2100) and connecting frame (2110) are arranged in plurality at predetermined intervals along the upper edge of the tapered main body (2000). In addition, the connecting portion (2100) includes a magnet. That is, at least a portion of each of the plurality of connecting portions (2100) is formed of a magnet. In other words, the connecting portion (2100) is formed of a magnet suitable for attachment to a hull so that the main body (2000) can be easily attached to and detached from the ventilation port. In addition, there is an advantage in that the main body (2000) can be effectively prevented from being detached from the ventilation port in response to a hull with a lot of movement, such as a yawing motion.

[0044] In addition, the main body (2000) includes a sealing member (2200) provided along the edge of the main body (2000), and the sealing member (2200) serves to prevent fluid from leaking into the gap between the main body (2000) and the inner wall surface of the cabin. More specifically, the sealing member (2200) is formed along the upper edge of the main body (2000) on the inner side of the joining member (2100). In addition, the sealing member (2200) is formed of a fabric material, thereby minimizing the leakage of fine particles between the inner space of the hull and the ventilation port without passing through the filter member (1000). In other words, the sealing member (2200) fills the gap between the upper side and the inner wall of the main body (2000), thereby minimizing the flow of fluid from the ventilation opening into the cabin without passing through the filter section (1000) and without being filtered, thereby improving the air quality within the cabin. Consequently, by installing the main body section (2000) in each cabin where a ventilation opening is formed, there is an advantage in that the air quality within the cabin can be efficiently improved.

[0045] In addition, referring to FIG. 2, the main body (2000) includes a flow rate control valve (2300) provided at the lower portion of the filter portion (1000) to control the flow rate of the fluid flowing through the ventilation port into the interior of the cabin after being filtered by the filter portion (1000). For example, a discharge port (2311) is formed at the lower portion of the main body (2000) so that the air flowing in through the ventilation port can be filtered by the filter portion (1000) and then flow downward to be supplied to the interior of the hull. At this time, the discharge ports (2311) may be provided in a plurality of arc shapes that are spaced apart from each other based on the flow rate control valve (2300). In addition, an adjustment frame (2310) is provided on the upper portion of the discharge port (2311) to open and close the discharge port (2311), and the flow control valve (2300) serves to rotate the adjustment frame (2310). At this time, the adjustment frame (2310) is provided in a shape corresponding to the discharge port (2311). Therefore, referring to (a) of FIG. 3, when the flow control valve (2300) is rotated in one direction, the adjustment frame (2310) rotates in one direction, and the discharge port (2311) is opened, and referring to (b) of FIG. 3, when the flow control valve (2300) is rotated in the other direction, the adjustment frame (2310) rotates in the other direction, and the discharge port (2311) is closed by the adjustment frame (2310). That is, in the ship ventilation system of the present invention installed in each cabin, the user has the advantage of being able to control the flow rate of the fluid supplied to the cabin through the ventilation port by adjusting the degree of opening of the discharge port (2311) by rotating the flow rate control valve (2300). In other words, the flow rate control valve (2300) and the main body (2000) are formed as an integral body so that the flow rate supplied to the cabin can be adjusted without a separate separation and assembly process, thereby improving convenience.

[0046] In addition, referring to FIGS. 4 and 5, in a vessel ventilation system according to another embodiment of the present invention, a flow control valve (2301) may be provided on a side surface of the main body (2000). At this time, the flow control valve (2301) may be a type that transmits rotational force to the control frame (2310) as it is rotated by a user to control the flow rate. More specifically, a rotation shaft (2302) provided in the longitudinal direction of the main body (2000) and rotating according to the rotation of the flow control valve (2301), and a transmission frame (2303) provided on one side of the rotation shaft (2302) and transmitting the rotation of the rotation shaft (2302) to the control frame (2310) may be provided. At this time, the transmission frame (2303) may be a bevel gear and a transmission link.

[0047] Accordingly, as shown in (a) of FIG. 5, when the flow control valve (2301) rotates in one direction, the rotation shaft (2302) and the transmission frame (2303) rotate in one direction, and thus the control frame (2310) rotates in one direction, so that the discharge port (2311) is opened. In addition, as shown in (b) of FIG. 5, when the flow control valve (2301) rotates in the other direction, the rotation shaft (2302) and the transmission frame (2303) rotate in the other direction, so that the control frame (2310) rotates in the other direction, so that the discharge port (2311) is closed. That is, in the ship ventilation system of the present invention installed in each cabin, the user has the advantage of being able to control the flow rate of the fluid supplied to the cabin through the ventilation port by adjusting the degree of opening of the discharge port (2311) by rotating the flow control valve (2301). At this time, the discharge port (2311) may be formed in a shape in which a plurality of longitudinal sills are arranged in a circular shape.

[0048] And, referring to FIG. 6, in a ship ventilation system according to another embodiment of the present invention, the main body (2000) includes a joining case (2500) provided in a form that surrounds the side surface of the filter part (1000), and the joining case (2500) includes a joining groove (2510) formed in a shape corresponding to the side surface of the filter part (1000). That is, the joining case (2500) and the filter part (1000) are joined in a form in which the filter part (1000) is inserted into the joining groove (2510), and the joining case (2500) is fitted in a form in which it is inserted into the main body (2000). As a result, the user can install the filter unit (1000) into the main body (2000) by inserting the filter unit (1000) into the coupling groove (2510) and then inserting the coupling case (2500) into the main body (2000). In other words, when replacing the filter unit (1000), there is an advantage in that the filter unit (1000) can be easily replaced and mounted by separating the coupling case (2500) from the main body (2000) without separating the main body (2000) from the inner wall surface of the hull through the coupling part (2100).

[0049] Meanwhile, referring to FIGS. 7 and 8, the filter unit (1000) includes a three-dimensional filtration layer (100), an electrostatic filtration layer (200) laminated on the three-dimensional filtration layer (100), and a nano-filtration layer (300) laminated on the electrostatic filtration layer (200), and the fiber diameter is formed to gradually decrease so that smaller particles are sequentially filtered according to the flow of fluid in the order of the three-dimensional filtration layer (100), the electrostatic filtration layer (200), and the nano-filtration layer (300).

[0050] First, the three-dimensional filter layer (100) is provided. The three-dimensional filter layer (100) may correspond to an outer skin and serves to capture coarse dust such as pollen and dust having a diameter of 10 μm or more. At this time, the three-dimensional filter layer (100) may be manufactured from a material having relatively high strength compared to other layers, and the diameter of the filter fiber may be manufactured to be about 15 μm to 300 μm, and the density may be 50 g / m. 2 70g / m2 2 can be manufactured to have a weight of .

[0051] Next, the electrostatic filtration layer (200) is provided. The electrostatic filtration layer (200) can be laminated on the inner surface of the three-dimensional filtration layer (100) and serves to capture dust having a relatively small diameter. For example, the electrostatic filtration layer (200) serves to capture fine dust of PM10 to PM2.5. At this time, the electrostatic filtration layer (200) captures fine dust using electrostatic force as an electrostatic filter, and the diameter of the filter fiber can be manufactured to be about 0.5 μm to 5 μm, the dust collection efficiency can be 85% to 99.995%, and the pressure drop can be 0.5 mmAq to 7.0 mmAq.

[0052] And, the nanofiltration layer (300) is provided. The nanofiltration layer (300) can be laminated on the inner surface of the electrostatic filtration layer (200) and serves to capture dust having a very small diameter. For example, the nanofiltration layer (300) serves to capture ultrafine dust and viruses of PM2.5 or less. At this time, the nanofiltration layer (300) is a nanofilter and there is no decrease in performance and efficiency according to the use time and cycle, and the direct diameter of the filter fiber can be manufactured to be about 0.05 μm to 0.5 μm, the dust collection efficiency can be 85% to 99.995%, and the pressure drop can be about 1.5 mmAq.

[0053] In addition, it further includes a support layer (400) laminated on the inner surface of the nanofiltration layer (300). For example, the diameter of the filter fiber of the support layer (400) can be manufactured to be about 15 μm to 300 μm, and 10 g / m 2 30g / m 2 can be manufactured to have a weight of .

[0054] At this time, the nanofiltration layer (300) is provided between the electrostatic filtration layer (200) and the support layer (400) to minimize deformation or damage of the nanofiltration layer (300). More specifically, the filter medium of the nanofiltration layer (300) is vulnerable to damage due to external impact and damage due to thermal changes, and thus, in order to minimize this, it is provided between the electrostatic filtration layer (200) and the support layer (400) which have relatively high strength.

[0055] Meanwhile, the fiber diameter of the three-dimensional filtration layer (100) is within the range of 15 μm to 300 μm, the fiber diameter of the electrostatic filtration layer (200) is within the range of 0.5 μm to 5 μm, and the fiber diameter of the nano-filtration layer (300) is within the range of 0.5 μm or less. In addition, the fiber diameter of the support layer (400) is within the range of 15 μm to 300 μm.

[0056] That is, in the method for manufacturing a hybrid multilayer filter of the present invention, a lamination step is included in which the electrostatic filtration layer (200) is laminated on the three-dimensional filtration layer (100), and the nano-filtration layer (300) is laminated on the electrostatic filtration layer (200), and the fiber diameter of the three-dimensional filtration layer (100) is manufactured to be included in the range of 15 μm to 300 μm, the fiber diameter of the electrostatic filtration layer (200) is manufactured to be included in the range of 0.5 μm to 5 μm, and the fiber diameter of the nano-filtration layer (300) is manufactured to be included in the range of 0.5 μm or less.

[0057] At this time, when the fiber diameter of the three-dimensional filter layer (100) and the support layer (400) is manufactured to be less than 300 μm and the fiber diameter of the electrostatic filter layer (200) is manufactured to be less than 1 μm, there is a problem that the pressure loss rapidly increases compared to the dust collection efficiency, resulting in a rapid decrease in ventilation volume, and when applied to a mask, there is a problem that breathing becomes difficult.

[0058] In addition, when the fiber diameter of the three-dimensional filter layer (100) and the support layer (400) is manufactured to exceed 300 μm, the fiber diameter of the electrostatic filter layer (200) is manufactured to exceed 5 μm, and the fiber diameter of the nano-filter layer (300) is manufactured to exceed 0.5 μm, there is a problem that the filtering efficiency for fine dust and ultrafine dust is reduced, and when applied to a mask, there is a problem that moisture according to the user's exhalation is transferred to the electrostatic filter layer (200), further reducing the dust collection efficiency of the electrostatic filter layer (200).

[0059] On the other hand, the thickness ratio of the three-dimensional filtration layer (100): electrostatic filtration layer (200): nano-filtration layer (300): support layer (400) is manufactured to be 1 to 1.5: 1: 0.1 to 0.2: 1. More specifically, the three-dimensional filtration layer (100) can be manufactured to have a thickness of 161 μm to 608 μm, the electrostatic filtration layer (200) can be manufactured to have a thickness of 161 μm to 483 μm, the nano-filtration layer (300) can be manufactured to have a thickness of 16 μm to 81 μm, and the support layer (400) can be manufactured to have a thickness of 135 μm to 483 μm.

[0060] At this time, if the thickness ratio of the three-dimensional filter layer (100): electrostatic filter layer (200): nano filter layer (300): support layer (400) is manufactured at a thickness ratio less than 1:1:0.1:1, there is a problem that the ventilation amount rapidly decreases as the pressure loss rapidly increases compared to the dust collection efficiency, and when applied to a mask, there is a problem that breathing becomes difficult. In addition, when the thickness ratio of the three-dimensional filter layer (100): electrostatic filter layer (200): nano-filter layer (300): support layer (400) is manufactured at a thickness ratio exceeding 1.5:1:0.2:1, there is a problem that the filtering efficiency for fine dust and ultrafine dust is reduced, and when applied to a mask, there is a problem that moisture according to the user's exhalation is transferred to the electrostatic filter layer (200), further reducing the dust collection efficiency of the electrostatic filter layer (200).

[0061] On the other hand, the three-dimensional filter layer (100) may be formed of multiple layers, for example, an upper layer (101), a middle layer (102), and a lower layer (103). In this case, referring to (a) of FIG. 9, when the outer layer is formed as a single layer as in the past, a clogging phenomenon may occur in which contaminants of various sizes in the air are blocked by large-diameter particles during the process of passing through the filter, and due to the shielding, even though the filter has a filtering ability, the differential pressure increases and the flow rate decreases, so that the filter can no longer perform its filtering function, and there is a problem in that the life of the filter is reduced.

[0062] In contrast, referring to (b) of FIG. 9, the three-dimensional filter layer (100) applied to the hybrid multilayer filter of the present invention and the manufacturing method thereof is formed of the upper layer (101), the middle layer (102), and the lower layer (103), and the fiber diameter is gradually formed to be smaller so that smaller particles are sequentially filtered according to the flow of fluid in the order of the upper layer (101), the middle layer (102), and the lower layer (103), so that substances with large particles can be sequentially filtered from substances with small particles. Accordingly, the clogging phenomenon can be minimized, thereby facilitating the flow of air, increasing the filtering performance, and improving the life of the filter.

[0063] In addition, referring to FIG. 10, when a hole is created due to destruction or damage in the upper layer (101) and middle layer (102), the lower layer (103) performs filtering of air flowing through the hole, thereby minimizing the deterioration of filter performance due to damage compared to a conventional single layer.

[0064] Likewise, the hybrid multilayer filter of the present invention and its manufacturing method have the advantage of minimizing the clogging phenomenon and minimizing the performance degradation of the filter due to damage by stacking the three-dimensional filtration layer (100), electrostatic filtration layer (200), nanofiltration layer (300) and support layer (400) in a multilayer structure.

[0065] In addition, referring to FIG. 11, the hybrid multilayer filter of the present invention and its manufacturing method further include a pressing unit (500) that combines the three-dimensional filtration layer (100), the electrostatic filtration layer (200), the nanofiltration layer (300), and the support layer (400). The combining method through the pressing unit (500) may be performed by selecting at least one method from the group consisting of thermal bonding, ultrasonic, and sewing methods.

[0066] For example, the compression member (500) includes an adhesive member (501) that allows the three-dimensional filtration layer (100), the electrostatic filtration layer (200), the nanofiltration layer (300), and the support layer (400) to be joined together through ultrasonic compression. The adhesive member (501) is formed in a plurality of pieces and penetrates the three-dimensional filtration layer (100), the electrostatic filtration layer (200), the nanofiltration layer (300), and the support layer (400) in that order through ultrasonic compression, and contains an adhesive to allow the three-dimensional filtration layer (100), the electrostatic filtration layer (200), the nanofiltration layer (300), and the support layer (400) to be bonded together. At this time, the plurality of adhesive members (501) may be formed in a grid shape that is arranged to be inclined at an angle. That is, the plurality of adhesive portions (501) are formed to have a circular cross-section with a smaller diameter compared to conventional adhesive portions (E1, E2, E3) formed by conventional ultrasonic pressing, and the plurality of adhesive portions (501) are arranged adjacent to each other to form a line.

[0067] More specifically, in order to set the pattern of the plurality of adhesive portions (501), in the TSI 8130 filter performance test, the dust simulation is paraffin oil or NaCl (0.3 μm or less), the flow rate is 32 LPM, and monodisperse particles of 0.3 μm are sprayed under general environmental conditions, and the dust collection efficiency before and after the filter is calculated by counting the number of particles before and after using a light scattering method. That is, after combining patterns of various shapes as in FIG. 11, and looking at the pressure drop analysis results as in FIG. 12, Pattern 1 and Pattern 4 have relatively low pressure drop values, but Pattern 1 has problems such as the layers separating due to relatively low adhesiveness of each layer, resulting in low manufacturability. Therefore, the plurality of adhesive portions (501) are formed in a grid shape that is arranged obliquely, so that the hybrid multilayer filter of the present invention and its manufacturing method have the advantage of minimizing the pressure drop value.

[0068] And, referring to FIGS. 13 and 14, the dust collection efficiency of the hybrid multilayer filter of the present invention and its manufacturing method is on average 95.77% or more. That is, the three-dimensional filtration layer (100) can be manufactured to have a thickness of 161 μm to 608 μm, the electrostatic filtration layer (200) can be manufactured to have a thickness of 161 μm to 483 μm, the nano-filtration layer (300) can be manufactured to have a thickness of 16 μm to 81 μm, the support layer (400) can be manufactured to have a thickness of 135 μm to 483 μm, the fiber diameter of the three-dimensional filtration layer (100) is included in the range of 15 μm to 300 μm, the fiber diameter of the electrostatic filtration layer (200) is included in the range of 0.5 μm to 5 μm, the fiber diameter of the nano-filtration layer (300) is included in the range of 0.5 μm or less, and the fiber diameter of the support layer (400) is included in the range of 15 μm to As it is manufactured to be included in the range of 300μm, the particle collection efficiency is 99.4%, and the plurality of adhesive parts (501) are formed in a grid shape that is arranged obliquely, so there is an advantage of minimizing the pressure drop value of the hybrid multilayer filter of the present invention and the manufacturing method thereof. In other words, as a result of testing through the KS B 6141 ventilation air filter unit (2020) standard test, it can be confirmed that the particle collection rate is 99.4%, which is 99.0% or higher.

[0069] In addition, in the above nanofiltration layer (300), by applying ultrasonic fusing technology and optimizing the ultrasonic fusing pattern in consideration of the low adhesiveness and other bonding properties of the nanofilter material, there is an advantage in that the lost flow area can be reduced to maximize performance and improve the manufacturability of the material filter, such as bendability.

[0070] In addition, the three main layers of the three-stage filtration layer (100), electrostatic filtration layer (200), and nano-filtration layer (300) are implemented as a single filter, the durability of the nano-filtration layer (300) is improved through the support layer (400), the efficiency of the filter is improved by setting the main dust target for each layer, and there is an advantage in that long-life use without being affected by moisture is possible through the nano-filter of the nano-filtration layer (300) at the last stage.

[0071] In addition, there is an advantage in that a high-efficiency / low-pressure differential long-life filter design is possible through various combinations by comparing the dust collection efficiency and pressure drop characteristics of the electrostatic filter and nano filter of the electrostatic filter layer (200) and nano filter layer (300). For example, an E10 grade (85%) MB filter + E10 grade (85%) nano filter = E11 grade filter (>95%) can be used.

[0072] And, referring to FIG. 15, the hybrid multilayer filter of the present invention can maintain the removal efficiency of ultrafine dust even when the usage period is extended compared to a conventional general mass-produced filter. More specifically, the hybrid multilayer filter of the present invention has a lifespan of 12 months or more, which is 4 to 12 times longer than a conventional mass-produced filter. In other words, the hybrid multilayer filter of the present invention can drastically improve the lifespan of the filter compared to a conventional filter, and has the advantage of maintaining high-efficiency filtration performance.

[0073] In this way, it will be understood by those skilled in the art that the technical configuration of the present invention described above can be implemented in other specific forms without changing the technical idea or essential features of the present invention.

[0074] Therefore, the embodiments described above should be understood as being exemplary and not restrictive in all respects, and the scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0075] [Explanation of symbols]

[0076] 1000: Filter section

[0077] 100: 3D filtration layer

[0078] 101: Upper floor

[0079] 102: Middle layer

[0080] 103: Lower floor

[0081] 200: Electrostatic filtration layer

[0082] 300: Nanofiltration layer

[0083] 400: Supporters

[0084] 500: Compression part

[0085] 2000: Main Body

[0086] 2100: Joint

[0087] 2101: Through hole

[0088] 2110: Combination Frame

[0089] 2200: Secret Department

[0090] 2300: Flow control valve

[0091] 2310: Control Frame

[0092] 2311: Outlet

[0093] 2301: Flow control valve

[0094] 2302: Rotation axis

[0095] 2303: Transmission frame

[0096] 2400: Settlement

[0097] 2500: Combination case

[0098] 2510: Combined Home

[0099] D: Dust

[0100] E1: Conventional adhesive

[0101] E2: Conventional adhesive

[0102] E3: Conventional adhesive

Claims

1. Main body installed in the ventilation hole of the cabin; and A ventilation system for a ship, characterized in that it includes a filter unit provided on one side of the main body and filtering a fluid flowing through the ventilation port.

2. In paragraph 1, The above main body part, It includes a connecting portion provided along the edge of the main body so that the main body can be connected to the inner wall surface of the cabin; The above joint is, A ventilation system for a ship, characterized in that it includes a magnet.

3. In paragraph 1, The above main body part, Including a sealing member provided along the edge of the main body; The above confidential information is, A ventilation system for a ship, characterized in that it prevents fluid from leaking through the gap between the main body and the inner wall of the cabin.

4. In paragraph 1, The above main body part, A ventilation system for a ship, characterized in that it comprises a flow control valve provided at the lower part of the filter section to control the flow rate of the fluid flowing through the ventilation port into the interior of the cabin after being filtered by the filter section.

5. In paragraph 1, A ventilation system for a ship, characterized in that the filter section is formed into a curved surface.

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