Marine air purification device capable of automatically replacing filter screen core

Abstract

The utility model provides a marine air purification device capable of automatically replacing a filter screen core. The marine air purification device comprises a front purification part and an air purification part, the front purification part comprises a first shell, a first purification channel and a switching part. The first shell is provided with a first air inlet and a first air outlet. The first purification channel is located in the first shell. The two ends of the first purification channel correspond to the first air inlet and the first air outlet correspondingly. And a front first filter element for purification is detachably mounted in the first purification channel. The multiple first purification channels are arranged at intervals. The switching part is configured to rotate the multiple first purification channels so that the multiple first purification channels can be switched between the first air inlet and the first air outlet in a reciprocating mode. The air purification part is configured to conduct secondary purification on air exhausted from the first air outlet, and the air is exhausted through the second air outlet. According to the device, the service cycle of replacing the filter element at a time can be prolonged, and the effects of reducing manual workload and improving use experience are achieved.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a marine air purification device with an automatically replaceable filter element. Background Technology

[0002] Most cabins on ships are sealed structures, with outside air or cabin air circulating through ventilation ducts. These ducts often contain significant amounts of salt spray, dust, oil mist, or other harmful substances. To meet the health needs of the crew, air purification devices are typically installed within the ventilation ducts to purify the outside air or air from other cabins. The presence of salt spray, oil mist, and other air pollutants in the outside air or air from other cabins can corrode and damage the filters and electronic components within the air purification devices.

[0003] In related technologies, to avoid or reduce the damage of salt spray and oil mist to air purification devices, it has been proposed to add a filter layer that can filter salt spray and oil mist to the air purification device. However, the lifespan of the filter layer that can filter salt spray and oil mist is usually short, requiring frequent manual replacement. Utility Model Content

[0004] In view of the above problems, this utility model is proposed to provide a marine air purification device with an automatically replaceable filter element that overcomes or at least partially solves the above problems, aiming to solve the problem that the existing filter layers that can filter salt spray or oil mist have a short lifespan and require frequent manual replacement.

[0005] Specifically, this utility model provides the following technical solution:

[0006] A marine air purification device includes a pre-purification unit and an air purification unit.

[0007] The pre-purification unit includes a first housing, a first purification channel, and a switching unit. The first housing has a first air inlet and a first air outlet. The first purification channel is located within the first housing. The two ends of the first purification channel correspond to the first air inlet and the first air outlet, respectively. A first filter element for purifying salt spray and / or oil mist is detachably installed within the first purification channel. Multiple first purification channels are spaced apart. The switching unit is configured to rotate the multiple first purification channels, causing them to reciprocate between the first air inlet and the first air outlet.

[0008] The air purification unit is configured to perform secondary purification on the air discharged from the first air outlet and discharge it through the second air outlet.

[0009] Optionally, the first housing is cylindrical.

[0010] The switching unit includes an annular cover and a first purification tube. The annular cover is coaxially rotatably connected to the first housing. The first purification tube is fixedly connected to the outer side of the side wall of the annular cover. A first end of the first purification tube communicates with the interior of the annular cover, and a second end of the first purification tube is sealed and slidably connected to the inner side of the side wall of the first housing. There are multiple first purification tubes, and the interior of each first purification tube forms a first purification channel.

[0011] The first air inlet is located on the side wall of the first housing. The first air outlet is located at the center of the bottom wall of the first housing near the air purification section and communicates with the interior of the annular cover.

[0012] Optionally, the first air outlet is located on the side wall of the first housing, and the first air inlet is located at the center of the bottom wall of the first housing away from the air purification section, and communicates with the interior of the annular cover.

[0013] Optionally, a plurality of the first purification tubes are arranged at uniform intervals along the circumference of the annular cover.

[0014] The pre-purification unit also includes a motor, which is located inside the first housing and outside the annular cover. The motor is configured to periodically drive the annular cover to rotate by a preset angle.

[0015] Optionally, an external toothed ring is fixedly connected to the outer side of the sidewall of the annular cover.

[0016] The motor is driven by a gear, which meshes with the external gear ring.

[0017] Optionally, the first purification tubes all extend radially along the annular cover.

[0018] Multiple first purification tubes are evenly spaced along the circumference of the annular cover.

[0019] Optionally, the height of the first housing is less than or equal to 1 / 3 of the diameter of the first housing.

[0020] The first air inlet is not located on the bottom wall of the first housing. The first housing also includes a cover plate, which is detachably disposed on the side wall of the first housing at the end away from the first air outlet. The cover plate forms the bottom wall of the first housing away from the air purification unit.

[0021] Optionally, the first filter element is a coarse media filter element.

[0022] Optionally, the air purification unit includes a second housing, a second purification channel, and a fan.

[0023] The second housing is provided with a second air inlet and a second air outlet, which communicate with the first air outlet. The second purification channel is located inside the second housing. The two ends of the second purification channel are respectively connected to the second air inlet and the second air outlet, and a second purification device is provided inside the second purification channel.

[0024] The fan is located at the second air inlet and is configured to draw air into the first air inlet in a controlled manner, pass through the first purification channel, the first air outlet and the second air inlet in sequence, enter the second purification channel, and then be discharged from the second air outlet.

[0025] Optionally, the second purification device includes an activated carbon filter.

[0026] Optionally, the second purification device includes an ultraviolet sterilization device.

[0027] Optionally, the second purification device includes a depth filtration device.

[0028] Optionally, the second purification device includes an ultraviolet sterilization device, which includes an ultraviolet lamp and a spiral guide plate.

[0029] The ultraviolet lamp extends axially along the second purification channel. A clearance hole is provided at the center of the spiral guide plate, and the outer diameter of the spiral guide plate is fixedly connected to the inner wall of the second purification channel. The ultraviolet lamp is inserted into the clearance hole.

[0030] This invention relates to a marine air purification device, which includes multiple first purification channels spaced apart in a pre-purification section, and a switching unit for rotating these first purification channels. When the first filter element in one of the first purification channels reaches the end of its service life, the switching unit rotates the first purification channel away from the first air inlet and the first air outlet, and then rotates another first purification channel between the first air inlet and the first air outlet. Manual filter replacement is only required when all the first filter elements in the first purification channels have reached the end of their service life. This marine air purification device, by incorporating the switching unit and multiple first purification channels, extends the lifespan of each filter replacement, thereby reducing manual labor and improving the user experience.

[0031] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0032] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 This is a schematic structural diagram of a marine air purification device according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic structural diagram of a marine air purification device according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic exploded view of the pre-purification section of a marine air purification device according to an embodiment of the present invention;

[0036] Figure 4 yes Figure 3 A schematic enlarged view of point A in the middle;

[0037] Figure 5 This is a schematic exploded view of the air purification section of a marine air purification device according to an embodiment of the present invention;

[0038] Figure 6 This is a schematic partial structural diagram of a marine air purification device according to an embodiment of the present invention.

[0039] List of reference numerals in the attached diagram:

[0040] 100. Pre-purification unit; 110. First housing; 111. First air inlet; 112. First air outlet; 113. Cover plate; 120. First purification channel; 130. First filter element; 140. Switching unit; 141. Annular cover; 142. First purification pipe; 142a. First end; 142b. Second end; 150. Motor; 161. External gear ring; 162. Gear; 170. First filter screen; 200. Air purification unit; 210. Second housing; 211. Second air inlet; 212. Second air outlet; 220. Second purification channel; 230. Second purification device; 231. Activated carbon filter device; 232. Ultraviolet sterilization device; 232a. Ultraviolet lamp tube; 232b. Spiral guide plate; 232c. Circumvention hole; 233. Deep filtration device; 240. Fan; 300. Controller. Detailed Implementation

[0041] The following reference Figures 1 to 6This invention describes a marine air purification device with an automatically replaceable filter element according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0042] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Figure 1This is a schematic structural diagram of a marine air purification device according to an embodiment of the present invention, as shown below. Figure 1 As shown, and refer to Figure 2-6 This utility model provides a marine air purification device, including a pre-purification unit 100 and an air purification unit 200.

[0046] The pre-purification unit 100 includes a first housing 110, a first purification channel 120, and a switching unit 140. The first housing 110 has a first air inlet 111 and a first air outlet 112. The first purification channel 120 is located within the first housing 110. The two ends of the first purification channel 120 correspond to the first air inlet 111 and the first air outlet 112, respectively. A first filter element 130 for purifying salt spray and / or oil mist is detachably installed within the first purification channel 120. Multiple first purification channels 120 are spaced apart. The switching unit 140 is configured to rotate the multiple first purification channels 120, causing the multiple first purification channels 120 to reciprocate between the first air inlet 111 and the first air outlet 112.

[0047] The air purification unit 200 is configured to perform secondary purification on the air discharged from the first air outlet 112 and discharge it through the second air outlet 212.

[0048] In this embodiment, the first air inlet 111 can be the air inlet of a marine air purification device, and the second air outlet 212 can be the air outlet of a marine air purification device. The first air inlet 111 can be connected to the ventilation duct of the ship's cabin to draw in ambient air, and the second air outlet 212 can discharge the purified air into the ship's cabin.

[0049] The pre-purification unit 100 is located upstream of the air purification unit 200. It is mainly used to purify salt spray in the ambient air and / or oil mist from the cabin environment, prevent salt spray and / or oil mist from corroding the filters and electronic components in the air purification unit 200, and prevent salt spray and / or oil mist from entering the ship's rooms and causing damage to personnel and facilities.

[0050] The first filter element 130 can purify salt mist and / or oil mist in the air through physical and chemical means, such as filtering salt mist and / or oil mist through a filter screen, adsorbing salt mist and / or oil mist through surfactants, or generating an electrochemical reaction between specific substances and salt mist and / or oil mist, etc., without limitation. The first filter element 130 can be set to purify only salt mist, or only oil mist, or of course, purify both salt mist and oil mist simultaneously.

[0051] Due to the strong corrosiveness of salt spray and / or oil mist, the first filter element 130 has a short service life and needs to be replaced regularly and frequently.

[0052] To address the issue of frequent replacement of the first filter element 130, this embodiment incorporates multiple first purification channels 120 and a switching unit 140. The switching unit 140 can reciprocate by rotating the multiple first purification channels 120. Specifically, one of the multiple first purification channels 120 can be rotated between the first air inlet 111 and the first air outlet 112, where the first filter element 130 purifies salt mist and / or oil mist in the air. After the first filter element 130 reaches the end of its service life, the switching unit 140 rotates again, disengaging the first purification channel 120 from the first air inlet 111 and the first air outlet 112, and rotating the next first purification channel 120 between the first air inlet 111 and the first air outlet 112. Manual replacement of the filter elements is only required when all the first filter elements 130 in the first purification channels 120 have reached the end of their service life.

[0053] The switching unit 140 may have a cylinder structure similar to that in a revolver, with the first purification channel 120 equivalent to the cylinder in the cylinder structure, the first filter element 130 equivalent to the bullet, and the first air outlet 112 equivalent to the bullet firing port. By rotating the cylinder structure, the first purification channel 120 can be positioned sequentially between the first air inlet 111 and the first air outlet 112.

[0054] Please refer to Figure 6 , Figure 6 Another embodiment of the switching unit 140 is illustrated. In this embodiment, the first housing 110 is cylindrical, and the first air inlet 111 and the first air outlet 112 are both located on the side of the first housing 110 and are spaced apart circumferentially. The first purification channel 120 may be arc-shaped, with its two ends corresponding to the first air inlet 111 and the first air outlet 112, respectively. By rotating the plurality of first purification channels 120, the first purification channel 120 can be positioned sequentially between the first air inlet 111 and the first air outlet 112.

[0055] The ship's air purification device, by setting up a switching unit 140 and multiple first purification channels 120, extends the service life of a single filter replacement, thereby reducing manual workload and improving the user experience.

[0056] In some embodiments of the marine air purification device of this utility model, such as Figure 3 As shown, the first housing 110 is cylindrical.

[0057] The switching unit 140 includes an annular cover 141 and a first purification tube 142. The annular cover 141 is coaxially rotatably connected to the first housing 110. The first purification tube 142 is fixedly connected to the outer side of the side wall of the annular cover 141. The first end 142a of the first purification tube 142 communicates with the interior of the annular cover 141, and the second end 142b of the first purification tube 142 is sealed and slidably connected to the inner side of the side wall of the first housing 110. There are multiple first purification tubes 142, and the interior of each first purification tube 142 forms a first purification channel 120.

[0058] The first air inlet 111 is located on the side wall of the first housing 110. The first air outlet 112 is located at the center of the bottom wall of the first housing 110 near the air purification section 200 and communicates with the interior of the annular cover 141.

[0059] In this embodiment, the first purification tube 142 can be cylindrical, elliptical, polygonal, etc., and there is no limitation. It can be selected according to the shape and specifications of the first filter element 130.

[0060] The first end 142a of the first purification tube 142 is fixedly connected to the annular cover 141. When the annular cover 141 rotates around its axis, it will drive the first purification tube 142 to rotate. Projected along the axial direction of the annular cover 141, the second end 142b of the first purification tube 142 is arc-shaped and concentric with the annular cover 141. The cross-sectional shape of the second end 142b can match the first air inlet 111 so that when the first purification tube 142 rotates to the correct position, the second end 142b and the first air inlet 111 are sealed together, allowing ambient air to enter the first purification tube 142 from the first air inlet 111, sequentially pass through the second end 142b and the first end 142a into the annular cover 141, and then enter the air purification unit 200 through the first air outlet 112.

[0061] The first air inlet 111 can be flared, with its smaller opening connected to the second end 142b and its larger opening outside the first housing 110. A first filter screen 170 can be installed at the larger opening to filter out larger impurities and prevent them from entering the first purification pipe 142 and clogging the first filter element 130.

[0062] Multiple first purification tubes 142 can be connected circumferentially at intervals to the outside of the side wall of the annular cover 141. Each first purification tube 142 can be of the same specification or different specifications.

[0063] Compared to using a rotary structure, the technical solution of this embodiment can compress the thickness of the pre-purification section 100, thereby reducing the overall thickness of the marine air purification device.

[0064] In some embodiments of the marine air purification device of this utility model, such as Figure 3As shown, the first purification tube 142 is elliptical cylindrical, and the major axis of the ellipse is parallel to the direction of rotation of the first purification tube 142. In this way, the thickness of the pre-purification section 100 can be further reduced, thereby reducing the overall thickness of the marine air purification device.

[0065] In some embodiments of the marine air purification device of this utility model, the first purification tube 142 is conical, with its upper base being the first end 142a and its lower base being the second end 142b. Correspondingly, the first filter element 130 is also conical. This facilitates the installation and removal of the first filter element 130 from the first purification tube 142. On the other hand, it also makes full use of the space within the first housing 110, reducing the overall volume of the marine air purification device.

[0066] In some embodiments of the marine air purification device of this utility model, the first air outlet 112 is located on the side wall of the first housing 110, and the first air inlet 111 is located at the center of the bottom wall of the first housing 110 away from the air purification part 200, and communicates with the interior of the annular cover 141.

[0067] In this embodiment, the pre-purification unit 100 draws in air from the bottom wall of the first housing 110 and exits air from the side wall of the first housing 110.

[0068] In some embodiments of the marine air purification device of this utility model, such as Figure 3-4 As shown, multiple first purification tubes 142 are evenly spaced along the circumference of the annular cover 141.

[0069] The pre-purification unit 100 also includes a motor 150, which is located inside the first housing 110 and outside the annular cover 141. The motor 150 is configured to periodically drive the annular cover 141 to rotate by a preset angle.

[0070] In this embodiment, the motor 150 can be fixedly installed on the bottom wall of the first housing 110 and connected to the annular cover 141 via a transmission mechanism. The transmission mechanism can be a gear mechanism, a sprocket mechanism, a conveyor belt mechanism, etc.

[0071] Motor 150 can be a servo motor to improve positioning accuracy.

[0072] Multiple first purification tubes 142 are evenly spaced along the circumference of the annular cover 141. This arrangement ensures that when the motor 150 rotates at a preset angle, the previous first purification tube 142 disengages from the first air inlet 111, and the second end 142b of the next first purification tube 142 aligns with the first air inlet 111. For example, if the first filter element 130 has a lifespan of 12 hours, four first purification tubes 142 can be used, with an angle of 45 degrees between adjacent tubes. The motor 150 rotates once every 12 hours, each rotation being 45 degrees. This reduces the need for manual replacement only every two days, significantly decreasing the frequency of manual operation.

[0073] In some embodiments of the marine air purification device of this utility model, the marine air purification device is also equipped with a timing device to monitor the working time of the first filter element 130 in each first purification tube 142, and when the preset service life is reached, the control switching unit 140 switches the first filter element 130 in time.

[0074] In some embodiments of the marine air purification device of this utility model, such as Figure 4 As shown, an external toothed ring 161 is fixedly connected to the outer side of the side wall of the annular cover 141.

[0075] The motor 150 is connected to a gear 162, which meshes with the external gear ring 161.

[0076] Compared to sprocket mechanisms and conveyor belt mechanisms, gear mechanisms are more compact and have higher precision, enabling accurate positioning and preventing air leakage caused by misalignment between the first purification pipe 142 and the first air inlet 111.

[0077] In some embodiments of the marine air purification device of this utility model, such as Figure 3 As shown, the first purification tubes 142 all extend radially along the annular cover 141. Multiple first purification tubes 142 are evenly spaced along the circumference of the annular cover 141.

[0078] In this way, it is convenient to process and manufacture, and also convenient to disassemble and assemble the first filter element 130.

[0079] In some embodiments of the marine air purification device of this utility model, such as Figure 2-3 As shown, the height of the first housing 110 is less than or equal to 1 / 3 of the diameter of the first housing 110.

[0080] This allows for further reduction in the thickness of the pre-purification section 100, thereby reducing the overall thickness of the marine air purification device.

[0081] In some embodiments of the marine air purification device of this utility model, such as Figure 3As shown, the first air inlet 111 is not located on the bottom wall of the first housing 110. The first housing 110 also includes a cover plate 113, which is detachably mounted on the side wall of the first housing 110 at the end away from the first air outlet 112. The cover plate 113 forms the bottom wall of the first housing 110 away from the air purification unit 200.

[0082] In this embodiment, the first air inlet 111 is located on the side wall of the first housing 110, and the first air outlet 112 is located on the bottom wall of the first housing 110 near the air purification unit 200. By providing the cover plate 113, the filter element can be easily replaced, and the components inside the first housing 110 can be easily inspected and repaired.

[0083] In some embodiments of the marine air purification device of this utility model, the first filter element 130 is a coarse media filter element.

[0084] In this embodiment, the first filter element 130 can be a coarse media filter element such as a stainless steel wire mesh filter element, or a conventional material such as 316L stainless steel. It can also be a special material such as Hastelloy, Inconel, or 904L nickel-containing stainless steel, or a non-metallic coarse media filter element.

[0085] The first filter element 130 uses a coarse-efficiency filter medium, such as a fine stainless steel metal mesh, which can effectively filter large particles of salt, oil mist, and other harmful substances in the air, reducing corrosion damage to the air purification unit 200 and increasing its service life. When the first filter element 130 reaches the end of its service life, certain impurities will accumulate inside the filter element, requiring timely removal of these impurities or replacement with a new filter element.

[0086] The first filter element 130 can be a disc filter, a cartridge filter, a round sleeve filter, a tubular filter, etc., and can be selected according to the shape and specifications of the first purification channel 120.

[0087] In some embodiments of the marine air purification device of this utility model, the pre-purification unit 100 is also provided with a differential pressure monitoring device to monitor the pressure inside the pre-purification unit 100.

[0088] After the first filter element 130 has been in use for a period of time, certain impurities will accumulate inside, increasing the pressure drop and decreasing the flow rate. By monitoring the pressure difference between the first air inlet 111 and the first air outlet 112 using a differential pressure monitoring device, it can be determined whether the first filter element 130 has reached the end of its service life. If it has reached the end of its service life, the control switching unit 140 will switch the first filter element 130 in a timely manner.

[0089] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, the air purification unit 200 includes a second housing 210, a second purification channel 220, and a fan 240.

[0090] The second housing 210 is provided with a second air inlet 211 and a second air outlet 212 that are connected to the first air outlet 112. The second purification channel 220 is located inside the second housing 210. The two ends of the second purification channel 220 are respectively connected to the second air inlet 211 and the second air outlet 212, and a second purification device 230 is provided inside the second purification channel 220.

[0091] The fan 240 is located at the second air inlet 211. The fan 240 is configured to cause air to be drawn into the first air inlet 111 in a controlled manner, pass through the first purification channel 120, the first air outlet 112 and the second air inlet 211 in sequence, enter the second purification channel 220, and then be discharged from the second air outlet 212.

[0092] In this embodiment, the air purification unit 200 is located downstream of the pre-purification unit 100 and is used to perform secondary air purification to meet the health needs of personnel in the ship's cabins.

[0093] The fan 240 can be an axial flow fan 240, a centrifugal fan 240, etc., and there are no restrictions here.

[0094] In this embodiment, the second housing 210 may be box-shaped and placed vertically. The first housing 110 is fixedly connected to one side wall of the second housing 210. Alternatively, the second housing 210 and the first housing 110 may share a side wall. The second air inlet 211 is located on the side wall of the second housing 210 near the first housing 110.

[0095] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, the second purification device 230 includes an activated carbon filter 231.

[0096] The activated carbon filter device 231 can adsorb and filter impurities and odors in the air.

[0097] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, the second purification device 230 includes an ultraviolet sterilization device 232.

[0098] The ultraviolet sterilization device 232 can destroy microorganisms in the air, such as fungi, to achieve a thorough sterilization effect.

[0099] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, the second purification device 230 includes a deep filtration device 233.

[0100] The depth filtration device 233 can be a cellulose-based depth filter that can remove fine particles and colloids from the air, further purifying the air.

[0101] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, along the direction of the second purification channel 220, the air passes through the activated carbon filter 231, the ultraviolet sterilization device 232 and the deep filter 233 in sequence, achieving secondary purification to meet the health needs of the human body.

[0102] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, the second purification channel 220 is arranged around the second air inlet 211, which can extend the length of the second purification channel 220 and reduce the volume of the air purification unit 200.

[0103] In some embodiments of the marine air purification device of this utility model, such as Figure 5 As shown, the second purification device 230 includes an ultraviolet sterilization device 232, which includes an ultraviolet lamp tube 232a and a spiral guide plate 232b.

[0104] The ultraviolet lamp tube 232a extends along the axial direction of the second purification channel 220. The spiral guide plate 232b is provided with a clearance hole 232c at its axis. The outer diameter of the spiral guide plate 232b is fixedly connected to the inner wall of the second purification channel 220, and the ultraviolet lamp tube 232a is inserted into the clearance hole 232c.

[0105] In this embodiment, the spiral guide plate 232b divides the second purification channel 220 into a spiral channel to receive sufficient irradiation from the ultraviolet lamp tube 232a, thereby achieving a thorough sterilization effect.

[0106] In some embodiments of the marine air purification device of this utility model, such as Figure 1-2 As shown, the marine air purification device is also equipped with a controller 300, and the motor 150, fan 240, ultraviolet lamp 232a, etc. are all electrically connected to the controller 300.

[0107] In some embodiments of the marine air purification device of this utility model, an air detection sensor is also provided at the second air outlet 212, and the air detection sensor is electrically connected to the controller 300. The controller 300 can control whether to automatically switch the first purification channel 120 according to the detection structure of the air detection sensor.

[0108] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A marine air purification device with an automatically replaceable filter element, characterized in that, include: A pre-purification unit, the pre-purification unit comprising: A first housing, wherein a first air inlet and a first air outlet are provided on the first housing; The first purification channel is located inside the first housing; the two ends of the first purification channel correspond to the first air inlet and the first air outlet, respectively; a first filter element for purifying salt spray and / or oil mist is detachably installed inside the first purification channel; there are multiple first purification channels arranged at intervals. The switching unit is configured to rotate a plurality of the first purification channels so that the plurality of the first purification channels switch back and forth between the first air inlet and the first air outlet; the air purification unit is configured to perform secondary purification on the air discharged from the first air outlet and discharge it through the second air outlet.

2. The marine air purification device according to claim 1, characterized in that, The first shell is cylindrical; The switching unit includes: An annular cover, which is coaxially rotatably connected to the first housing; The first purification tube is fixedly connected to the outer side of the side wall of the annular cover. The first end of the first purification tube is connected to the interior of the annular cover, and the second end of the first purification tube is sealed and slidably connected to the inner side of the side wall of the first housing; there are multiple first purification tubes, and the interior of each first purification tube forms a first purification channel; Wherein, the first air inlet is located on the side wall of the first housing; the first air outlet is located at the center of the bottom wall of the first housing near the air purification section, and communicates with the interior of the annular cover; or The first air outlet is located on the side wall of the first housing, and the first air inlet is located at the center of the bottom wall of the first housing away from the air purification section, and communicates with the interior of the annular cover.

3. The marine air purification device according to claim 2, characterized in that, Multiple first purification tubes are evenly spaced along the circumference of the annular cover; The pre-purification unit also includes a motor, which is located inside the first housing and outside the annular cover; the motor is configured to periodically drive the annular cover to rotate by a preset angle.

4. The marine air purification device according to claim 3, characterized in that, An external toothed ring is fixedly connected to the outer side wall of the annular cover; The motor is driven by a gear, which meshes with the external gear ring.

5. The marine air purification device according to claim 2, characterized in that, The first purification tubes all extend radially along the annular cover; Multiple first purification tubes are evenly spaced along the circumference of the annular cover.

6. The marine air purification device according to claim 2, characterized in that, The height of the first housing is less than or equal to 1 / 3 of the diameter of the first housing; The first air inlet is not located on the bottom wall of the first housing; the first housing also includes a cover plate, which is detachably installed on the side wall of the first housing at the end away from the first air outlet; the cover plate forms the bottom wall of the first housing away from the air purification unit.

7. The marine air purification device according to claim 1, characterized in that, The first filter element is a coarse media filter element.

8. The marine air purification device according to claim 1, characterized in that, The air purification unit includes: The second housing is provided with a second air inlet and a second air outlet that communicate with the first air outlet. The second purification channel is located inside the second housing; the two ends of the second purification channel are respectively connected to the second air inlet and the second air outlet, and a second purification device is installed inside the second purification channel; A fan is installed at the second air inlet. The fan is configured to cause air to be drawn into the first air inlet in a controlled manner, pass through the first purification channel, the first air outlet and the second air inlet in sequence, enter the second purification channel, and then be discharged from the second air outlet.

9. The marine air purification device according to claim 8, characterized in that, The second purification device includes: Activated carbon filtration device; and / or Deep filtration device.

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