Filter device and marine air conditioner

Abstract

The present application relates to a filtering device and a marine air conditioner, specifically comprising a first shell and a second filtering module, wherein the first shell has a first air inlet side and a first air outlet side. The first filtering module comprises a first blade group and a second blade group which are sequentially arranged in the first shell along the gas direction. The first blade group comprises at least one first louver blade, and all the first louver blades are arranged in parallel and at intervals along the first direction. The second blade group comprises at least one second louver blade, and all the second louver blades are arranged in parallel and at intervals along the first direction, and the first direction intersects with the gas flow direction. The straight lines where two adjacent first louver blades and second louver blades are located intersect, and a first slag removal gap is formed between the ends of the two blades which are close to each other. In this way, the first slag removal gap can guide non-gas impurities carried in the gas to fall without continuing to flow with the gas, thereby improving the cleanliness of the gas and thus improving the service life of the marine air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of marine air conditioning, and in particular to a filtering device and a marine air conditioner. Background Art

[0002] With the continuous development of ocean-going shipbuilding technology, the degree of ship automation has been rapidly improved. Full enclosure, informatization and intelligence have become typical design features of modern new ships. Due to the closed design of ships, personnel and equipment coexist in crowded ship cabins, which brings certain harm to the health of crew members.

[0003] In order to solve the above problems, most ships began to use marine air conditioners, especially air-cooled air conditioners that use wind as the heat dissipation medium. Air-cooled air conditioners occupy a small area and directly use the wind in nature to exchange heat with the refrigerant of the air conditioning system, thereby realizing heat exchange treatment of the gas in the ship.

[0004] However, when the ship's air-cooled air-conditioning outdoor unit is in operation, it needs to inhale a large amount of gas for refrigerant cooling. These gases usually carry moisture and salt spray, and are sometimes even accompanied by surges, wind, sand and silt. Seawater, salt spray and wind and sand enter the outdoor unit and corrode the air-conditioning outdoor unit, thereby reducing the service life of the ship's air-cooled air-conditioning.

[0005] Application Contents

[0006] Based on this, the present application proposes a filtering device and a marine air conditioner to address the problem of short life of existing ship air-cooled air conditioners. The filtering device and the marine air conditioner have the technical effect of good filtering effect and being able to increase life.

[0007] A filtering device, comprising:

[0008] A first housing having a first air inlet side and a first air outlet side;

[0009] The first filter module comprises a first blade group and a second blade group which are sequentially arranged in the first shell along the gas flow direction;

[0010] The first blade group includes at least one first louver blade, and all of the first louver blades are arranged in parallel and at intervals along a first direction; the second blade group includes at least one second louver blade, and all of the second louver blades are arranged in parallel and at intervals along the first direction, and the first direction intersects with the gas flow direction;

[0011] Wherein, in the gas flow direction, two adjacent straight lines where the first louver blades and the second louver blades are located intersect, and a first slag removal gap is formed between ends of the two blades that are close to each other.

[0012] In one of the embodiments, in the gas flow direction, in two adjacent first louver blades and second louver blades, an extension line of one end of the first louver blade close to the second louver blade intersects with the second louver blade.

[0013] In one embodiment, the first filter module further comprises a third blade group, wherein the third blade group is assembled in the first housing and arranged downstream of the second blade group along the gas flow direction;

[0014] The third blade group includes at least one third louver blade, and all the third louver blades are arranged in parallel and at intervals along the first direction;

[0015] Furthermore, in the gas flow direction, two adjacent second louver blades are arranged to intersect with a straight line where the third louver blades are located, and a second slag removal gap is formed between ends of the two blades that are close to each other.

[0016] In one of the embodiments, in the gas flow direction, the first slag removal gap formed between the first louver blades and the second louver blades that are adjacent to each other, and the second slag removal gap formed between the second louver blades and the third louver blades that are adjacent to each other, are respectively located at opposite ends of the second louver blades.

[0017] In one embodiment, each of the second louvers has a first end and a second end that are oppositely disposed along its own extension direction;

[0018] Among them, in the gas flow direction, among the adjacently arranged first louver blades, the second louver blades and the third louver blades, the extension line of the first louver blade close to one end of the second louver blade intersects with the first end of the second louver blade, and the extension line of the second end of the second louver blade intersects with the third louver blade.

[0019] In one embodiment, the filtering device further comprises a second filtering module, wherein the second filtering module is filled between two adjacent first louvers in the first direction, and / or is filled between two adjacent second louvers in the first direction, and / or is filled between two adjacent third louvers in the first direction;

[0020] The second filter module is used to block non-gaseous impurities.

[0021] In one embodiment, the filter device further includes a second shell and a third filter module, the second shell has a second air inlet side and a second air outlet side, the second shell is connected to the first shell and the second air inlet side is connected to the first air outlet side;

[0022] The third filter module is installed in the second housing and arranged downstream of the first filter module and the second filter module along the gas flow direction;

[0023] The third filter module is configured to perform salt mist purification on the gas flowing through the third filter module.

[0024] In one embodiment, the filtering device further includes a fixing member, and the first shell and the second shell are detachably connected via the fixing member.

[0025] In one embodiment, two adjacent first louvers and the second louver blades are arranged perpendicular to a straight line.

[0026] In one embodiment, in the first direction, the distance between two adjacent first louvers is 0.78 times the length of the first louvers, and the distance between two adjacent second louvers is 0.78 times the length of the second louvers.

[0027] In one embodiment, the first housing includes a body and a side plate, and the body has the first air inlet side and the first air outlet side;

[0028] The side plate is detachably connected to the main body, and the first filter module is detachably assembled in the main body.

[0029] According to another aspect of the present application, there is provided a marine air conditioner, comprising the filtering device described in any one of the above embodiments.

[0030] The above-mentioned filtering device includes a first shell and a first filtering module. The first shell has a first air inlet side and a first air outlet side. After the gas enters the first shell from the first air inlet side, it flows out of the first shell from the first air inlet side, thereby forming a gas flow direction. The first filtering module includes a first blade group and a second blade group arranged in sequence in the first shell along the gas direction. When the gas entering the shell flows, it will first pass through the first blade group and then the second blade group. The first blade group includes at least one first louver blade, and all the first louver blades are arranged parallel and spaced along the first direction. The second blade group includes at least one second louver blade, and all the second louver blades are arranged parallel and spaced along the first direction. The first direction intersects with the gas flow direction. Among them, in the gas flow direction, the straight lines where two adjacent first louver blades and the second louver blades are located intersect, and the first slag discharge gap is formed between the ends of the two blades that are close to each other. In this way, if the gas entering from the first air inlet side carries impurities such as liquids such as seawater and solids such as fine sand, the first slag removal gap can guide the impurities such as liquids and solids to fall without continuing to flow with the gas, thereby filtering the impurities entrained in the gas and performing separation of gas and / or solids and / or liquids. This improves the cleanliness of the air outlet from the first air outlet side and efficiently achieves the purpose of filtering. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a three-dimensional exploded structure of a filtering device provided in one embodiment of the present application;

[0032] Figure 2 for Figure 1 A schematic diagram of a cross-sectional structure of a filter device provided in;

[0033] Figure 3 for Figure 1 The schematic diagram of the side structure of the filter device provided in the figure after removing the side plate;

[0034] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the filtering device provided in.

[0035] Figure numerals: 100, filter device; 10, first shell; 11, main body; 12, side panel; 20, first filter module; 21, first blade group; 22, second blade group; 221, first end; 222, second end; 23, third blade group; 30, first slag discharge gap; 40, second slag discharge gap; 50, second filter module; 51, polyester material; 52, fiber material; 53, first filter screen; 60, second shell; 70, third filter module; 71, second filter screen; 72, primary filter screen; 73, desalination filter element; 80, fixing piece; LP: gas flow direction; L1: first direction. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] See also Figures 1 to 4, an embodiment of the present application provides a filtering device 100, including a first housing 10 and a first filtering module 20, the first housing 10 having a first air inlet side and a first air outlet side, the gas enters the first housing 10 from the first air inlet side and then flows out of the first housing 10 from the first air inlet side, thereby forming a gas flow direction. The first filtering module 20 includes a first blade group 21 and a second blade group 22 arranged in sequence in the first housing 10 along the gas direction, and the gas entering the first housing 10 will first pass through the first blade group 21 and then pass through the second blade group 22 when flowing. The first blade group 21 includes at least one first louver blade, and all the first louver blades are arranged parallel to the first direction L1 and spaced apart. The second blade group 22 includes at least one second louver blade, and all the second louver blades are arranged parallel to the first direction L1 and spaced apart. The first direction L1 intersects with the gas flow direction LP. Among them, in the gas flow direction LP, the straight lines where two adjacent first louver blades and the second louver blades are located intersect, and the first slag discharge gap 30 is formed between the ends of the two blades close to each other.

[0043] In this way, if the gas entering from the first air inlet side carries impurities such as liquids such as seawater and solids such as fine sand, the first slag removal gap 30 can guide the impurities such as liquids and solids to fall without continuing to flow with the gas, thereby filtering the impurities entrained in the gas and performing separation of gas and / or solids and / or liquids. This improves the cleanliness of the air outlet gas from the first air outlet side and efficiently achieves the purpose of filtering.

[0044] In actual application, when the filter device 100 is installed at the air inlet of the air conditioner, the gas flowing out of the first air outlet side of the first shell 10 directly enters the interior of the air conditioner, thereby performing the next step of heat exchange between the gas and the refrigerant.

[0045] It can be understood that when the first louver blade and the second louver blade are both set as one piece, the space in the first housing 10 is divided into two parts, and when the first louver blade and the second louver blade are both set as multiple pieces, the space in the first housing is divided into multiple pieces. According to actual assembly requirements, the filtering effect is better when multiple first louver blades and multiple second louver blades are set.

[0046] In one embodiment, in the gas flow direction LP, the extension line of the end of the first louver blade close to the second louver blade of two adjacent first louver blades and second louver blades intersects with the second louver blade. In this way, at the end of the two adjacent first louver blades and the second louver blades close to each other, the height of the second louver blade in the first direction is higher than the first louver blade. The gas entering the first shell 10 from the first air inlet side continues to flow under the guidance of the multiple first louver blades until it flows to the first slag removal gap 30 formed by the first louver blades and the second louver blades. As the gas continues to move, the gas and the impurities carried in the gas will collide with the second louver blades and be knocked off, thereby falling from the first slag removal gap 30 without continuing to move with the gas.

[0047] It is understandable that the straight line where the first louver blades are located and the straight line where the second louver blades are located can be at various staggered angles. Preferably, the straight line where two adjacent first louver blades and the second louver blades are located is vertically arranged, so that the side section of the first filter module 20 forms a funnel shape through the first louver blades and the second louver blades. This structure can prevent impurities in any direction from directly passing through the obstruction of the first filter module 20. And the vertically arranged first louver blades and second louver blades will not excessively block the flow of the incoming air, thereby avoiding affecting the normal flow of the gas when filtering the impurities.

[0048] In one embodiment, in the first direction L1, the spacing between two adjacent first louvers is 0.78 times the length of the first louvers, and the spacing between two adjacent first louvers is 0.78 times the length of the second louvers. Through simulation verification, it can be found that such a setting prevents light from any direction from directly passing through the first louvers and the second louvers and passing out from the first air outlet side, thereby achieving light blocking. In addition, the first louvers and the second louvers can block impurities from any direction from overflowing from the first air outlet side, and will not excessively block the incoming air, so that the wind resistance is small.

[0049] In one embodiment, the first shell 10 includes a main body 11 and a side panel 12, and the main body 11 has a first air inlet side and a first air outlet side. The side panel 12 is detachably connected to the main body 11, and the first filter module 20 is detachably assembled in the main body 11. When the first filter module 20 is accidentally damaged or the installed air conditioning equipment is not convenient for overall cleaning, the side panel 12 can be removed, and the first filter module 20 can be completely removed from the main body 11 for cleaning and maintenance. At the same time, the impurities falling from the first slag discharge gap 30 fall to the bottom of the main body 11 due to gravity, and the main body 11 can also be cleaned after the first filter module 20 is taken out.

[0050] Specifically, a slag discharge hole may be opened at the bottom of the body 11 , so as to discharge impurities at the bottom of the body 11 out of the filter device 100 , thereby achieving continuous filtration of the filter device 100 .

[0051] In one embodiment, the first filter module 20 further includes a third blade group 23, which is assembled in the first housing 10 and arranged downstream of the second blade group 22 along the gas flow direction LP. The third blade group 23 includes at least one third louver blade, and all third louver blades are arranged in parallel and at intervals along the first direction L1. In addition, in the gas flow direction LP, two adjacent second louver blades intersect with the straight line where the third louver blade is located, and a second slag discharge gap 40 is formed between the ends of the two blades that are close to each other.

[0052] In this way, the impurities carried in the gas entering from the first air inlet side are filtered by the first slag discharge gap 30, and most of the impurities will fall from the first slag discharge gap 30. As the gas continues to flow, the remaining impurities in the gas fall from the second slag discharge gap 40 when flowing through the second slag discharge gap 40, thereby performing secondary filtration on the gas and improving the filtering effect.

[0053] Specifically, each second louver has a first end 221 and a second end 222 that are relatively arranged along its own extension direction. Among them, in the gas flow direction LP, among the adjacent first louver, second louver and third louver, the extension line of the end of the first louver close to the second louver intersects with the first end 221 of the second louver, and the extension line of the second end 222 of the second louver intersects with the third louver. In this way, the end of the two adjacent second louvers and the third louver close to each other is the height of the third louver in the first direction. The second section of the second louver. In this way, when the gas entering the first shell 10 from the first air inlet side flows to the second slag removal gap 40 formed by the second louver and the third louver under the guidance of the second louver, as the gas continues to move, the gas and the impurities carried in the gas will collide with the third louver and be guided to fall along the third louver, and then fall from the second slag removal gap 40, further ensuring the filtering effect of the filter device 100.

[0054] In order to reduce production costs, preferably, the first louver blades, the second louver blades and the third louver blades can all be set to structures of the same size and material, and only one type of louver blades needs to be produced during production, thereby forming a parts library and improving economy.

[0055] In one embodiment, the filter device 100 further includes a second filter module 50, which is filled between two adjacent first louvers in the first direction L1, and / or filled between two adjacent second louvers in the first direction L1, and / or filled between two adjacent third louvers in the first direction L1; the second filter module 50 is used to block non-gaseous impurities. When impurities carried by the gas entering the first shell 10 from the first air inlet side hit the second filter module 50, non-gaseous impurities such as large-diameter sand or high-speed liquid are basically blocked, which can effectively prevent impurities from directly washing the first filter module 20, thereby protecting the first filter module 20 to a certain extent. At the same time, the gas can be further filtered, thereby improving the filtering effect of the filter device 100.

[0056] It can be understood that when the first louver, the second louver and the third louver are all set to one, the second filter module is filled between the first louver, the second louver and the third louver and the shell 10, so as to filter the non-gaseous impurities carried in the gas.

[0057] Specifically, along the gas flow direction LP, the first louver blades, the second louver blades and the third louver blades are connected to form a "Z"-shaped structure. The provision of a plurality of first louver blades, a plurality of second louver blades and a plurality of third louver blades can simultaneously form a plurality of gas flow channels in the first direction L1, and the gas entering the first housing 10 from the first air inlet side enters a plurality of gas flow channels, thereby separating gas and non-gas impurities.

[0058] Specifically, in some of the embodiments, the second filter module 50 includes a fiber material 52 and a polyester material 51 arranged in sequence along the gas flow direction LP, and the polyester material 51 and the fiber material 52 are separated by a first filter 53, so that the first filter 53 provides certain support to the polyester material 51 and the fiber material 52. In addition, the first filter 53 can block the impact of large particles of sand and dust on the fragile fiber material 52 and polyester material 51 inside, thereby improving the overall strength and service life. The fiber material 52 intercepts high-speed impact seawater and most of the sand and dust; the polyester material 51 is a fine filter with greater resistance, thereby blocking small particles of sand and dust. In this way, the second filter module 50 achieves gradual filtration from large particles to small particles.

[0059] In other embodiments, other barrier materials may also be used to achieve the purpose that the second filter module 50 only allows gas to pass through, but does not allow solids or liquids to pass through.

[0060] In one embodiment, the filter device 100 further includes a second housing 60 and a third filter module 70. The second housing 60 has a second air inlet side and a second air outlet side. The second housing 60 is connected to the first housing 10 and the second air inlet side is connected to the first air outlet side. The gas flowing out of the first air outlet side of the first housing 10 then enters the second housing 60 through the second air inlet side for further purification.

[0061] Specifically, the third filter module 70 is assembled in the second housing 60 and arranged downstream of the first filter module 20 and the second filter module 50 along the gas flow direction LP. After filtering by the first filter module 20 and the second filter module 50, the non-gas impurities carried in the gas are basically filtered out. At this time, the third filter module 70 performs salt spray purification on the gas flowing through to treat the salt spray droplets dissolved with electrolytes in the gas. The clean gas after treatment enters the air conditioner through the second air outlet side, so that the gas entering the air conditioner does not contain salt spray, and the internal structure and system of the air conditioner will not be scratched or corroded, thereby improving the service life of the air conditioner.

[0062] Specifically, the third filter module 70 includes a desalting filter element 73 , which can form an electric field on the desalting filter element 73 by energizing to adsorb salt mist droplets, or special materials can be used to adsorb salt mist droplets, thereby achieving filtering of salt mist, which is not limited in the present application.

[0063] Furthermore, the third filtering device 100 also includes a second filter 71 and a primary filter 72 arranged upstream of the desalting mist filter element 73 along the gas flow direction LP, so as to further filter the gas flowing out from the first air outlet side of the first shell 10 to ensure that the gas entering the desalting mist filter element 73 does not carry any non-gaseous impurities, thereby improving the desalting mist effect of the third filtering module 70.

[0064] In one embodiment, the filter device 100 further includes a fixing member 80, and the first housing 10 and the second housing 60 are detachably connected via the fixing member 80. The first housing 10 and the second housing 60 can be formed into two modules that can be separated separately via the fixing member 80. When in use, they are fixed together via the fixing member 80. If any of the modules has a problem and needs to be replaced, the fixing member 80 can be removed to separate the first housing 10 and the second housing 60, thereby achieving convenience in disassembly and maintenance, and when a part thereof is damaged, there is no need to replace the entire filter device 100, thereby improving the economic efficiency of the product.

[0065] Specifically, the fixing member 80 includes four fixing plates, which are symmetrically arranged in pairs at opposite ends of the first shell 10 and the second shell 60. One end of the fixing plate is connected to the first shell 10, and the other end is connected to the second shell 60. The length of the fixing plate can be changed by a fixing knob to change the installation distance between the first shell 10 and the second shell 60. The installation position is limited and the disassembly and assembly are convenient.

[0066] According to another aspect of the present application, a marine air conditioner is provided, comprising the filter device 100 described in any of the above embodiments, and only the clean gas filtered by the filter device 100 can enter the marine air conditioner for heat exchange. Larger particles of water, silt and other impurities in the gas are blocked and guided by the first filter module 20 and the second filter module 50, and discharged from the slag discharge hole at the bottom of the first shell 10 to the water receiving tray of the marine air conditioner. The salt spray water droplets or particles in the gas are adsorbed by the filtration of the third filter module 70, so that the gas inhaled into the marine air conditioner is completely clean gas, which increases the service life of the marine air conditioner.

[0067] The specific process is:

[0068] 1) First layer filtration: Gas and impurities are filtered through the channel formed by the three layers of louvers (first louver, second louver, third louver) of the first filter module 20. In the gas flow direction LP, the adjacent first louver and second louver are at a 90° angle to each other and are staggered by one-tenth of the width of the first louver. The second louver and the third louver are at a 90° angle to each other and are staggered by one-tenth of the width of the first louver, so that the side view forms a funnel-shaped first slag discharge gap 30 and second slag discharge gap 40. This structure can guide the blocked sand, dust and seawater to flow through the first slag discharge gap 30 and the second slag discharge gap 40 to the bottom of the first shell 10 for discharge, and also increase the distance of the gas flowing through the first filter module 20. Without affecting the air intake, impurities will be intercepted in large quantities and deposited and discharged downward along the first slag discharge gap 30 and the second slag discharge gap 40.

[0069] 2) Second layer of filtration: The channel formed by the three layers of louvers (first louver, second louver, third louver) of the first filter module 20 is filled with the second filter module 50. Most of the non-gas impurities in the gas are basically blocked, which can effectively prevent impurities from directly washing the first filter module 20, thereby achieving the purpose of filtration more efficiently.

[0070] 3) Third layer filtration: After being filtered by the first filter module 20 and the second filter module 50, non-gaseous impurities in the gas can be filtered to a high degree, and the high-purity gas enters the third filter module 70 for salt spray purification, thereby forming highly clean gas to enter the interior of the marine air conditioner.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A filtering device, characterized in that: include: A first housing (10) having a first air inlet side and a first air outlet side; A first filter module (20) comprises a first blade group (21), a second blade group (22) and a third blade group (23) which are sequentially arranged in the first shell (10) along a gas flow direction (LP), and the third blade group (23) is arranged downstream of the second blade group (22); The first blade group (21) comprises at least one first louver blade, and all of the first louver blades are arranged in parallel and at intervals along a first direction (L1); the second blade group (22) comprises at least one second louver blade, and all of the second louver blades are arranged in parallel and at intervals along the first direction (L1), and the first direction (L1) intersects with the gas flow direction (LP); the third blade group (23) comprises at least one third louver blade, and all of the third louver blades are arranged in parallel and at intervals along the first direction (L1); Wherein, in the gas flow direction (LP), two adjacent first louver blades and the straight line where the second louver blades are located intersect, and a first slag discharge gap (30) is formed between the ends of the two blades close to each other, and two adjacent second louver blades and the straight line where the third louver blades are located intersect, and a second slag discharge gap (40) is formed between the ends of the two blades close to each other; The filtering device (100) further comprises a second filtering module (50), the second filtering module (50) being filled between two adjacent first louver blades in the first direction (L1); the second filtering module (50) being used to block non-gas impurities; the second filtering module (50) comprising a fiber material (52) and a polyester material (51) arranged in sequence along a gas flow direction (LP); The filtering device (100) further comprises a second shell (60) and a third filtering module (70), wherein the second shell (60) has a second air inlet side and a second air outlet side, the second shell (60) is connected to the first shell (10) and the second air inlet side is butted against the first air outlet side, the third filtering module (70) is assembled in the second shell (60) and arranged downstream of the first filtering module (20) and the second filtering module (50) along the gas flow direction (LP), the third filtering module (70) being configured to perform salt mist purification on the gas flowing therethrough, and the third filtering module (70) comprises a desalting filter element (73).

2. The filtering device according to claim 1, characterized in that: In the gas flow direction (LP), in two adjacent first louver blades and the second louver blades, an extension line of one end of the first louver blade close to the second louver blade intersects with the second louver blade.

3. The filtering device according to claim 1, characterized in that: In the gas flow direction (LP), the first slag removal gap (30) formed between the first louver blades and the second louver blades that are adjacent to each other, and the second slag removal gap (40) formed between the second louver blades and the third louver blades that are adjacent to each other, are respectively located at opposite ends of the second louver blades.

4. The filtering device according to claim 1, characterized in that: Each of the second louvers has a first end (221) and a second end (222) that are arranged opposite to each other along the extension direction of the second louver; Wherein, in the gas flow direction (LP), among the adjacently arranged first louver blades, the second louver blades and the third louver blades, an extension line of an end of the first louver blade close to the second louver blade intersects with the first end (221) of the second louver blade, and an extension line of the second end (222) of the second louver blade intersects with the third louver blade.

5. The filtering device according to claim 1, characterized in that: The second filter module (50) is also filled between two adjacent second louvers in the first direction (L1), and / or is filled between two adjacent third louvers in the first direction (L1).

6. The filtering device according to claim 1, characterized in that: The filtering device (100) further comprises a fixing member (80), and the first shell (10) and the second shell (60) are detachably connected via the fixing member (80).

7. The filtering device according to claim 1, characterized in that: The straight line where two adjacent first louvers and the second louver blades are located is perpendicular to each other.

8. The filtering device according to claim 1, characterized in that: In the first direction (L1), the distance between two adjacent first louvers is 0.78 times the length of the first louvers, and the distance between two adjacent second louvers is 0.78 times the length of the second louvers.

9. The filtering device according to claim 1, characterized in that: The first shell (10) comprises a main body (11) and a side plate (12); the main body (11) has the first air inlet side and the first air outlet side; The side plate (12) is detachably connected to the main body (11), and the first filter module (20) is detachably assembled in the main body (11).

10. A marine air conditioner, characterized in that: A filtering device (100) comprising any one of claims 1 to 9.

Images