Oil mist filtering device

Abstract

The utility model belongs to the technical field of wind power gear boxes, and discloses an oil mist filtering device which comprises a containing part, a filtering part and an air exhaust part. The filtering part is detachably connected into the containing part and can divide the interior of the containing part into a first cavity and a second cavity, the first cavity is configured to communicate with a to-be-filtered device, the second cavity communicates with the outside, the air exhaust part is arranged between the containing part and the to-be-filtered device, the air exhaust part is provided with an air suction end and an air outlet end, the air suction end communicates with the to-be-filtered device, and the air outlet end communicates with the to-be-filtered device. The air outlet end is communicated with the first cavity. Through the arrangement, the oil mist filtering device can quickly and safely eliminate oil mist, and is convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power gear boxes, in particular to an oil mist filtering device. Background Art

[0002] During the wind turbine gearbox test, the machine needs to be shut down after the steady-state load ends, and the gear meshing inside the gearbox needs to be checked with an endoscope. After the test, a large amount of heat will be generated inside the wind turbine gearbox due to the high-speed rotation of the gears and the friction during meshing, filling the cavity with oil mist generated by the high temperature of the lubricating oil.

[0003] At present, the oil mist inside the wind turbine gearbox dissipates slowly. Operators need to open the viewing hole cover after the wind turbine gearbox is shut down and wait for about 30 to 40 minutes for the internal oil mist to dissipate before performing an endoscopic inspection, which reduces the operating efficiency. Moreover, after the oil mist inside the wind turbine gearbox dissipates, it will evaporate into the factory, causing environmental pollution, which brings more safety risks to operators. Even if the oil mist can be filtered and collected through conventional filtering devices, the filter element is not easy to disassemble and maintain, resulting in problems such as poor filtering effect. Utility Model Content

[0004] The utility model aims to provide an oil mist filtering device, which can achieve rapid and safe elimination of oil mist and is easy to disassemble and maintain.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An oil mist filtering device, comprising:

[0007] Receiving parts;

[0008] A filter element, detachably connected to the container, capable of dividing the interior of the container into a first cavity and a second cavity, wherein the first cavity is configured to communicate with the object to be filtered, and the second cavity is communicated with the outside;

[0009] The suction member is arranged between the accommodating member and the filter to be filtered, and the suction member is provided with an air suction end and an air outlet end, the air suction end is connected to the filter to be filtered, and the air outlet end is connected to the first cavity.

[0010] Optionally, a housing cavity is provided inside the housing component, and the housing cavity is arranged to penetrate along a first direction. Along the first direction, the first cavity and the second cavity are respectively arranged at two opposite ends of the housing cavity.

[0011] Optionally, the oil mist filtering device further includes an oil collecting box, and the oil collecting box is connected to the second cavity.

[0012] Optionally, the position of the oil collecting box is lower than that of the second cavity.

[0013] Optionally, the oil collecting box is detachably connected to the accommodating member and is provided with an oil outlet that can be opened and closed.

[0014] Optionally, the filter element includes a plurality of filter cartridges, and the plurality of filter cartridges are arranged in sequence along the extending direction of the accommodating member.

[0015] Optionally, the filter cartridge includes PP cotton and / or activated carbon.

[0016] Optionally, a clamping groove is provided in the accommodating member, and the filter element is inserted into the clamping groove.

[0017] Optionally, the filter to be filtered is the housing of a gearbox.

[0018] Optionally, the accommodating member is provided with a vent hole, and the second cavity communicates with the outside through the vent hole.

[0019] Advantages of the present utility model:

[0020] The present utility model provides an oil mist filtering device, which includes: an accommodating member, a filter element, and an air extraction member. The filter element is detachably connected to the accommodating member, so as to facilitate the disassembly, assembly and maintenance of the filter element, and improve the filtering effect of the oil mist. The filter element can divide the interior of the accommodating member into a first cavity and a second cavity. The first cavity is configured to communicate with the filter to be filtered, and the air extraction member is arranged between the accommodating member and the filter to be filtered, so that the oil mist in the filter to be filtered can be sucked by the air extraction member into the first cavity for temporary storage, improving the operation safety and avoiding the overflow of the oil mist before it can be filtered. The second cavity communicates with the outside to balance the air pressure and ensure the normal operation of the air extraction member. The air extraction member is provided with an air suction end and an air outlet end. The air suction end communicates with the filter to be filtered, and the air outlet end communicates with the first cavity, so that the oil mist in the filter to be filtered can be filtered through the filter element between the first cavity and the second cavity, quickly eliminating the oil mist in the filter to be filtered and realizing the environmental protection treatment of the oil mist, and avoiding the pollution of the environment caused by the overflow of the oil mist. Through the above settings, the oil mist filtering device of the present application can quickly and safely eliminate the oil mist and is convenient for disassembly, assembly and maintenance. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the oil mist filtering device provided by an embodiment of the present utility model.

[0022] In the figure:

[0023] 100, filter to be filtered; 1, accommodating member; 11, first cavity; 12, second cavity; 13, accommodating cavity; 14, vent hole; 2, filter element; 21, filter cartridge; 3, air extraction member; 31, air suction end; 32, air outlet end; 4, oil collecting box. Detailed implementation mode

[0024] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0025] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is at a lower horizontal height than the second feature.

[0027] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] As Figure 1 shown, this embodiment provides an oil mist filtering device, which includes: a housing 1, a filtering element 2, and an air extraction element 3. The filtering element 2 is detachably connected to the housing 1 and can divide the interior of the housing 1 into a first cavity 11 and a second cavity 12. The first cavity 11 is configured to communicate with the to-be-filtered device 100, and the second cavity 12 communicates with the outside. The air extraction element 3 is arranged between the housing 1 and the to-be-filtered device 100. The air extraction element 3 is provided with a suction end 31 and an air outlet end 32. The suction end 31 communicates with the to-be-filtered device 100, and the air outlet end 32 communicates with the first cavity 11.

[0029] In this embodiment, the filter element 2 is detachably connected to the receiving element 1 to facilitate the disassembly and maintenance of the filter element 2, thereby improving the filtering effect of the oil mist. The filter element 2 can divide the interior of the receiving element 1 into a first cavity 11 and a second cavity 12. The first cavity 11 is configured to communicate with the to-be-filtered device 100. The air extraction member 3 is disposed between the receiving element 1 and the to-be-filtered device 100, so that the oil mist in the to-be-filtered device 100 can be sucked by the air extraction member 3 into the first cavity 11 for temporary storage, improving the operation safety and preventing the oil mist from overflowing before being filtered. The second cavity 12 communicates with the outside to balance the air pressure and ensure the normal operation of the air extraction member 3. The air extraction member 3 is provided with a suction end 31 and an air outlet end 32. The suction end 31 communicates with the to-be-filtered device 100, and the air outlet end 32 communicates with the first cavity 11, so that the oil mist in the to-be-filtered device 100 can be filtered through the filter element 2 between the first cavity 11 and the second cavity 12, quickly eliminating the oil mist in the to-be-filtered device 100 and realizing the environmental protection treatment of the oil mist, and preventing the oil mist from overflowing and polluting the environment. Through the above settings, the oil mist filtering device of this embodiment can quickly and safely eliminate the oil mist and is convenient for disassembly and maintenance.

[0030] It should be noted that in this embodiment, the to-be-filtered device 100 is the housing of a gearbox. A large amount of heat is generated inside the housing due to the high-speed rotation and meshing friction of the gears, causing the lubricating oil in the cavity to generate oil mist. The oil mist filtering device can quickly eliminate the oil mist inside the gearbox and filter and collect the oil mist, saving the commissioning time of the gearbox while ensuring the environmental protection and safety of the workshop. In other embodiments, the to-be-filtered device 100 includes an internal combustion engine, an engine, and a vacuum pump. The specific structure of the to-be-filtered device 100 is not limited too much here.

[0031] The specific structure of the oil mist filtering device will be described below:

[0032] Specifically, as Figure 1 shown, an accommodation cavity 13 is provided inside the receiving element 1. The accommodation cavity 13 is arranged to penetrate along a first direction, making the flow of the oil mist in the accommodation cavity 13 smoother, so as to improve the filtering efficiency of the oil mist. Along the first direction, the first cavity 11 and the second cavity 12 are respectively arranged at opposite ends of the accommodation cavity 13. The oil mist can smoothly enter the first cavity 11 under the action of the air extraction member 3 and be filtered through the filter element 2, so that the oil liquid particles in the oil mist can remain in the filter element 2 and the first cavity 11, while the filtered emulsion and air can be discharged through the second cavity 12. Through the above settings, it helps to reduce the air flow resistance and improve the filtering efficiency.

[0033] It can be understood that in this embodiment, the first direction is the horizontal direction, which helps the uniform distribution of the oil mist in the accommodation cavity 13, avoiding the situation of too high or too low oil mist concentration in local areas, thereby improving the filtering effect of the oil mist. In other embodiments, the first direction can be set at an angle to the ground, so that the oil mist is more easily affected by gravity on the inner wall of the inclined accommodation cavity 13, thereby improving the filtering efficiency. Here, the first direction is not limited too much.

[0034] Specifically, as Figure 1 shown, the filter element 2 includes a plurality of filter cores 21, and the plurality of filter cores 21 are arranged in sequence along the extending direction of the accommodating member 1, which can achieve the effect of hierarchical filtration. Among them, the filter core 21 close to the air extraction member 3 can filter out larger particles and impurities, while the subsequent filter cores 21 can more effectively filter out tiny oil mist particles.

[0035] More specifically, as Figure 1 shown, in this embodiment, there are three filter cores 21, and the three filter cores 21 are arranged in sequence, which can filter the oil mist sucked by the air extraction member 3 well. Moreover, the three filter cores 21 are respectively detachably connected to the accommodating member 1, so as to facilitate independent disassembly and maintenance, thereby improving the practicability of the oil mist filtering device and saving more costs. In other embodiments, there are four or five filter cores 21, and the specific number can be adjusted according to the actual filtering operation, and no more limitations are made here.

[0036] Specifically, as Figure 1 shown, the filter core 21 includes PP cotton and / or activated carbon. PP cotton (polypropylene fiber) has a fine fiber structure and good interception ability, and can effectively filter out large particle oil mist and impurities in the air, while activated carbon has a porous structure and a large surface area, and can remove tiny oil mist particles and harmful gases.

[0037] More specifically, in this embodiment, the three filter cores 21 are respectively PP cotton, activated carbon and PP cotton, that is, the activated carbon is arranged between the two PP cottons. The PP cotton close to the air extraction member 3 can intercept large particle oil mist, dust and other impurities entering the second cavity 12. The activated carbon can adsorb tiny oil mist particles, harmful gases and peculiar smells in the air, and then realize secondary filtration and protection through the PP cotton close to the second cavity 12 to intercept the tiny particles that may not be completely captured in the previous filtration, ensuring that the finally discharged air is cleaner. In other embodiments, the plurality of filter cores 21 can be selected from one or more of PP cotton and activated carbon, so as to ensure the filtering effect of the oil mist.

[0038] Specifically, as Figure 1 shown, there are card slots in the accommodating member 1, and the filter element 2 is inserted into the card slots, thereby realizing the plug-in connection between the filter element 2 and the accommodating member 1, which not only simplifies the installation process, but also is easy to disassemble and maintain.

[0039] More specifically, as Figure 1 shown, a limiting protrusion is provided in the card slot. When the filter element 2 is inserted into the card slot, the limiting protrusion can abut against the filter element 2, thereby realizing the limiting function of the filter element 2 in the card slot and preventing the filter element 2 from loosening or falling off.

[0040] Specifically, as Figure 1 shown, in this embodiment, the air extraction member 3 includes an axial flow fan to be suitable for occasions with large air volume and low pressure. Both the air suction end 31 and the air outlet end 32 of the axial flow fan include air ducts. The air inlet of the axial flow fan is connected to the to-be-filtered device 100 through the air duct, thereby realizing the suction function of the oil mist in the to-be-filtered device 100. The air outlet of the axial flow fan is connected to the first cavity 11 in the accommodating member 1 through the air duct, and then the sucked oil mist is blown into the accommodating member 1 to achieve filtration. In other embodiments, the air extraction member 3 includes a centrifugal fan, and the centrifugal fan is used to quickly suck the oil mist. It can be understood that the specific structure of the air extraction member 3 is not limited as long as the above functions can be realized.

[0041] Specifically, as Figure 1 shown, the oil mist filtering device further includes an oil collecting box 4. The oil collecting box 4 is connected to the second cavity 12, thereby recovering and collecting the emulsified liquid after oil mist filtration, so as to facilitate the operator to centrally process the emulsified liquid.

[0042] More specifically, as Figure 1 shown, the position of the oil collecting box 4 is lower than that of the second cavity 12, so that the emulsified liquid is more likely to deposit into the oil collecting box 4 under the action of gravity, improving the collection efficiency of the emulsified liquid.

[0043] Specifically, as Figure 1 shown, the oil collecting box 4 is detachably connected to the accommodating member 1, so that the oil collecting box 4 can be easily removed from the accommodating member 1, facilitating the operator to clean and maintain the inside of the oil collecting box 4. Moreover, the oil collecting box 4 is provided with an oil outlet that can be opened and closed. When the emulsified liquid does not need to be discharged, the oil outlet can be closed to prevent accidental leakage or splashing of the oil liquid. When the emulsified liquid needs to be discharged, only the oil outlet needs to be opened to complete the operation safely and conveniently. Among them, a cover plate is provided on the oil collecting box 4, and the cover plate covers the oil outlet. The oil outlet can be opened or closed by bolt connection or snap connection, and no more limitations are made here.

[0044] More specifically, in this embodiment, a sliding groove is provided on the accommodating member 1, and a slider that is slidably engaged with the sliding groove is provided on the oil collecting box 4. The oil collecting box 4 is slidably connected to the sliding groove through the slider, thereby realizing the connection and installation between the oil collecting box 4 and the accommodating member 1. When an operator needs to disassemble the oil collecting box 4, it is only necessary to pull out the slider from the sliding groove. In other embodiments, the oil collecting box 4 is screwed to the accommodating member 1, thereby realizing the detachable connection between the two. It can be understood that the detachable connection method between the above components is not limited, as long as the above functions can be realized.

[0045] Specifically, as Figure 1 shown, the accommodating member 1 is provided with a vent hole 14, and the second cavity 12 communicates with the outside through the vent hole 14. During the filtering process, due to the inhalation and discharge of the oil mist, the gas pressure in the second cavity 12 will change. By providing the vent hole 14, pressure balance can be achieved to ensure the normal operation of the air extraction member 3 and promote the uniform distribution of the air flow, so that the oil mist can contact the filter member 2 more fully, thereby improving the filtering efficiency.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Oil mist filtering device, characterized in that: include: A receiving member (1); A filter element (2) is detachably connected to the container (1) and is capable of dividing the interior of the container (1) into a first cavity (11) and a second cavity (12), wherein the first cavity (11) is configured to be connected to the filter (100), and the second cavity (12) is connected to the outside; An air suction member (3) is arranged between the containing member (1) and the filter (100), and the air suction member (3) is provided with an air suction end (31) and an air outlet end (32), wherein the air suction end (31) is connected to the filter (100), and the air outlet end (32) is connected to the first cavity (11).

2. The oil mist filtering device according to claim 1, characterized in that: An accommodating cavity (13) is provided inside the accommodating member (1), and the accommodating cavity (13) is arranged to penetrate along a first direction. Along the first direction, the first cavity (11) and the second cavity (12) are respectively arranged at two opposite ends of the accommodating cavity (13).

3. The oil mist filtering device according to claim 1, characterized in that: The oil mist filtering device further comprises an oil collecting box (4), wherein the oil collecting box (4) is connected to the second cavity (12).

4. The oil mist filtering device according to claim 3, characterized in that: The position of the oil collecting box (4) is lower than the position of the second cavity (12).

5. The oil mist filtering device according to claim 3, characterized in that: The oil collecting box (4) is detachably connected to the containing component (1) and is provided with an openable and closable oil outlet.

6. The oil mist filtering device according to claim 1, characterized in that: The filter element (2) comprises a plurality of filter cores (21), and the plurality of filter cores (21) are arranged in sequence along the extension direction of the container (1).

7. The oil mist filtering device according to claim 6, characterized in that: The filter element (21) comprises PP cotton and / or activated carbon.

8. The oil mist filtering device according to claim 1, characterized in that: The receiving member (1) is provided with a slot, and the filter member (2) is inserted into the slot.

9. The oil mist filtering device according to claim 1, characterized in that: The object to be filtered (100) is a housing of a gear box.

10. The oil mist filtering device according to any one of claims 1 to 9, characterized in that: The container (1) is provided with an air hole (14), and the second cavity (12) is connected to the outside through the air hole (14).

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