A droplet baffle filter

Abstract

The utility model discloses a liquid drop blocks filter, include: filter structure and purging mechanism, the filter structure has and the outflow face of inflow face and a plurality of gas passage through the inflow face with the outflow face, for gas by inflow face and via gas passage from the outflow face, through the inflow face intercept the liquid drop of entering the gas passage, the purging mechanism includes purging spare, purging spare with the filter structure links, its one side is equipped with with the outflow face corresponding purging mouth for through purging mouth to the outflow face carries out purging, the device sets up purging mechanism at the outflow face of filter structure, can effectively purify the liquid drop of sticking on the outflow face of filter structure, avoids filter material to block up, prolongs the service life of liquid drop blocks filter.

Description

Technical Field

[0001] This utility model relates to the technical field of oil and gas separation equipment, specifically to a droplet filter. Background Technology

[0002] In the petrochemical industry, light hydrocarbons (such as liquefied petroleum gas (LPG) and natural gas condensate (NGL)) are often used as fuels or feedstocks, and atomization is used to improve combustion efficiency or processing quality. However, during atomization, the incomplete separation of fine droplets entrained in the light hydrocarbon mixture can lead to contamination problems in subsequent processes, increase equipment maintenance costs, and even affect the quality of the final product. Therefore, existing equipment installs droplet filters at the exhaust port after light hydrocarbon atomization to capture and remove these tiny droplets, ensuring the quality of the final product.

[0003] For example, patent CN2235848Y discloses a light hydrocarbon mixed gas atomizing droplet filter, which is used to filter out atomized droplets in a light hydrocarbon mixed gas. This device uses multiple layers of wire mesh with different pore sizes, spaced at certain intervals, secured by inner and outer clamping rings. It can be directly installed at the outlet of the mixed gas to filter out atomized droplets in the gas, ensuring that the output mixed gas is completely dry. This design solves the problem of atomized droplets carried in the mixed gas re-liquefying in the pipeline, thus affecting the normal use of the gas.

[0004] However, in high-humidity working environments, tiny droplets coalesce into large droplets on the surface of the filter media, easily adhering to the surface and causing the mesh of the droplet filter to become clogged, requiring frequent cleaning or replacement of the mesh during production. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a droplet filter to solve the technical problem that the wire mesh of the droplet filter is prone to clogging in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a droplet filter, including: a filter structure and a purging mechanism; the filter structure has an inlet surface and an outlet surface, and a plurality of air passages penetrating the inlet surface and the outlet surface, so that gas flows in from the inlet surface and flows out from the outlet surface through the air passages, and intercepts droplets entering the air passages through the inlet surface, the inlet surface being used to block droplets from entering the air passages; the purging mechanism includes a purging member, the purging member being connected to the filter structure, and having a purging port on one side corresponding to the outlet surface, for purging the outlet surface through the purging port.

[0008] In some embodiments, the purging port of the purging member extends along a first direction of the outflow surface, the purging member is movably connected to the filter structure, and is capable of moving along a second direction of the outflow surface, the second direction being perpendicular to the first direction.

[0009] In some embodiments, both the inlet surface and the outlet surface are annular surfaces, the inlet surface and the outlet surface are coaxial, the first direction is the axial direction of the outlet surface, and the second direction is the circumferential direction of the outlet surface.

[0010] In some embodiments, the purging member includes a purging pipe that extends along a first direction of the outflow surface, and a plurality of purging ports are sequentially opened on one side of the purging pipe along its length.

[0011] In some embodiments, the purging mechanism further includes a drive member mounted on the filter structure, the drive member having a drive end connected to the purging member for driving the purging member to move along a second direction of the outflow surface.

[0012] In some embodiments, the driving component includes a motor and a connecting plate. The connecting plate is coaxially disposed on one side of the filter structure and connected to the purging component. The drive shaft of the motor is connected to the center of the connecting plate and is used to drive the connecting plate to rotate, thereby causing the purging component to rotate around the circumferential direction of the outflow surface.

[0013] In some embodiments, the purging mechanism further includes an air pump and a connecting pipe, wherein the air pump is connected to the purging element via the connecting pipe and is used to provide purging gas to the purging element.

[0014] In some embodiments, the filtration structure includes a filter cartridge arranged vertically, with its inner and outer surfaces forming an inlet surface and an outlet surface, respectively.

[0015] In some embodiments, at least two filter cartridges are provided, and the at least two filter cartridges are coaxially arranged along the same axis from the inside to the outside, with a gap formed between two adjacent filter cartridges, and the air passage of the at least two filter cartridges decreases sequentially from the inside to the outside.

[0016] In some embodiments, at least two purging elements are provided, and are respectively disposed on the outer side of the filter cartridge.

[0017] Compared with the prior art, the droplet filter provided by this utility model, by setting a purging mechanism at the outlet surface of the filter structure, can use the purging port of the purging mechanism to perform reverse purging of the filter structure, which can effectively blow away the droplets adhering to the outlet surface of the filter structure, ensure the unobstructed air passage, avoid filter material blockage, and extend the service life of the droplet filter. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a droplet-blocking filter provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of a droplet filter provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the purging mechanism of a droplet-blocking filter provided in one embodiment of the present invention;

[0021] Figure 4 This is a partial structural schematic diagram of the outer cylinder of a droplet filter provided in one embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Filter structure; 101. Inlet surface; 102. Outlet surface; 11. First filter cartridge; 12. Second filter cartridge;

[0024] 2. Purging mechanism; 201. Purging port; 21. Purging component; 211. Purging pipe; 22. Driving component; 221. Motor; 222. Connecting plate; 23. Air pump; 24. Connecting pipe;

[0025] 3. Outer cylinder; 31. Air outlet; 4. Air inlet pipe; 5. Outer cover. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] To address the technical problem of easy clogging of the wire mesh in droplet-blocking filters, this invention provides a droplet-blocking filter. By setting a purging mechanism at the outlet surface of the filter structure, droplets adhering to the outlet surface of the filter structure can be effectively purged, preventing filter material clogging and extending the service life of the droplet-blocking filter.

[0028] It should be noted that the droplet filter described in this utility model is used for, but not limited to, filtering of light hydrocarbon mixed gases. For ease of explanation, this utility model will only use the application of the droplet filter to filtering of light hydrocarbon mixed gases as an example. The principle of the droplet filter applied to other gas-liquid separation equipment is essentially the same as that applied to filtering of light hydrocarbon mixed gases, and will not be described in detail here.

[0029] Please see Figures 1 to 3The droplet filter includes a filter structure 1 and a purging mechanism 2. The filter structure 1 has an inlet surface 101 and an outlet surface 102, as well as several air passages penetrating the inlet surface 101 and the outlet surface 102, so that gas can flow in from the inlet surface and flow out from the outlet surface through the air passages, and intercept droplets entering the air passages through the inlet surface. The purging mechanism 2 includes a purging member 21, which is connected to the filter structure 1. One side of the member is provided with a purging port 201 corresponding to the outlet surface 102, which is used to purge the outlet surface 102 through the purging port 201.

[0030] In this device, the filter structure 1 has an inlet surface 101 and an outlet surface 102, and several gas passages are formed between the inlet surface 101 and the outlet surface 102. Light hydrocarbon mixed gas can pass through the filter structure 1 on the outlet surface 102 side under the guidance of the gas passages and be discharged from the outlet surface 102. During gas passage, droplets are effectively blocked by the inlet surface, preventing them from entering and affecting subsequent gas processing. The purging mechanism 2 can promptly purge the outlet surface 102 through the purging port 201, effectively removing droplets adhering to the outlet surface 102 of the filter structure 1, ensuring unobstructed gas passages and preventing clogging of the filter structure 1.

[0031] To improve purging results, please refer to [link / reference]. Figure 2 and Figure 3 In this embodiment, the purging port 201 of the purging member 21 extends along the first direction of the outflow surface 102. The purging member 21 is movably connected to the filter structure 1 and can move along the second direction of the outflow surface 102, which is perpendicular to the first direction. During the purging process, the purging member 21 moves back and forth along the second direction, so that the purging port 201 can fully cover the outflow surface 102, ensuring that droplets in every corner can be effectively removed.

[0032] In one embodiment, both the inlet surface 101 and the outlet surface 102 are annular surfaces. The inlet surface 101 and the outlet surface 102 are coaxial, with the first direction being the axial direction of the outlet surface 102 and the second direction being the circumferential direction of the outlet surface 102. Specifically, the filter structure 1 includes a filter cartridge, with the inlet surface 101 and the outlet surface 102 formed on its inner and outer surfaces, respectively. Two filter cartridges are provided, namely a first filter cartridge 11 and a second filter cartridge 12. The second filter cartridge 12 is located outside the first filter cartridge 11 and is coaxially arranged with the first filter cartridge 11. A gap is formed between the two filter cartridges to accommodate a purging member 21. Two purging members 21 are provided, respectively located outside the first filter cartridge 11 and the second filter cartridge 12.

[0033] Furthermore, the filter pores of the second filter cartridge 12 are smaller than those of the first filter cartridge 11, making the gas passage formed by the second filter cartridge 12 smaller than that of the first filter cartridge 11, thereby enabling multi-stage filtration of the gas. When the light hydrocarbon mixture enters, it first undergoes preliminary filtration through the first filter cartridge 11. Larger droplets are blocked by the first filter cartridge 11, while smaller droplets continue to enter the gap between the two filter cartridges with the gas. Subsequently, the gas enters the second filter cartridge 12 for secondary filtration. Because the filter pores of the second filter cartridge 12 are even smaller, they can further block tiny droplets, ensuring the purity of the gas. At the same time, the purging element 21 purifies the outlet surfaces 102 of the first filter cartridge 11 and the second filter cartridge 12, ensuring unobstructed flow throughout the entire filtration structure 1.

[0034] Furthermore, the filter cartridges are arranged vertically, which allows the filtered droplets to flow down the inner wall of the cartridges, thus preventing droplets from accumulating on the cartridges and improving the filtration effect and equipment stability.

[0035] Of course, in other possible embodiments, the number of filter cartridges and purging elements 21 can be flexibly adjusted according to actual needs, and more than two can be set to adapt to different working environments and processing requirements. In this case, the air passages of multiple filter cartridges decrease in size from the inside to the outside, forming a multi-stage filtration system to ensure that the gas can be effectively filtered and purified when passing through the filter cartridges.

[0036] In another embodiment, the inlet surface 101 and the outlet surface 102 can also be planar. In this case, the filter structure 1 is composed of a filter screen, with the inlet surface 101 formed on one side and the outlet surface 102 formed on the other side. The filter screen can be arranged horizontally or at an angle to adapt to different installation spaces and airflow directions.

[0037] In this embodiment, please refer to Figure 2 and Figure 3 The purging mechanism 2 also includes a drive unit 22, an air pump 23, and a connecting pipe 24. The drive unit 22 is installed on the filter structure 1, and its drive end is connected to the purging member 21. It is used to drive the purging member 21 to move along the second direction of the outlet surface 102, forming a comprehensive and automatic purging. The air pump 23 is connected to the purging member 21 through the connecting pipe 24 and is used to provide purging compressed gas to the purging member 21. The compressed gas is ejected through the purging port 201 on the purging member 21, forming a powerful airflow to flush and remove droplets on the outlet surface 102.

[0038] In one embodiment, the purging component 21 includes a purging pipe 211, and the driving component 22 includes a motor 221 and a connecting plate 222. Two purging pipes 211 are respectively disposed on the outer sides of the first filter cartridge 11 and the second filter cartridge 12, and extend along the first direction of the outlet surface 102 of the two filter cartridges. A plurality of purging ports 201 are sequentially opened on one side of the purging pipe 211 along its length. The connecting plate 222 is coaxially disposed on one side of the filter structure 1 and fixedly connected to the purging pipe 211. A chamber is provided on the connecting plate 222, which is connected to the air pump 23 via a connecting pipe 24. The top end of the purging pipe 211 is connected to the chamber, allowing the compressed gas provided by the air pump 23 to enter the purging pipe 211 and be uniformly sprayed out through each purging port 201. The drive shaft of the motor 221 is connected to the center of the connecting plate 222 and is used to drive the connecting plate 222 to rotate, thereby causing the purging component 21 to rotate around the circumferential direction of the outlet surface 102.

[0039] It should be noted that the motor 221 is a swing motor 221, which can drive the connecting plate 222 to rotate 360° back and forth. During this time, the purge pipe 211 moves back and forth around the circumference of the flow surface 102 as the connecting plate 222 rotates, ensuring that the purge port 201 can fully and evenly cover every corner of the flow surface 102. At the same time, the connecting pipe 24 is a telescopic corrugated pipe, which can adapt to the positional changes of the connecting plate 222 during rotation, ensuring a stable supply of compressed gas.

[0040] Please see Figures 1 to 4 In this embodiment, the droplet filter further includes an outer cylinder 3, an inlet pipe 4, and an outer cover 5. The first filter cartridge 11, the second filter cartridge 12, and the purge pipe 211 are all disposed inside the outer cylinder 3. The inlet pipe 4 is installed at the bottom of the outer cylinder 3 and communicates with the interior of the first filter cartridge 11. An outlet 31 is provided on the periphery of the outer cylinder 3 to allow gas to be discharged, so that the light hydrocarbon mixture can enter the interior of the first filter cartridge 11 through the inlet pipe 4 and be filtered by the first filter cartridge 11 and the second filter cartridge 12 in sequence. The air pump 23 and the motor 221 are both installed on the top of the outer cylinder 3, and the outer cover 5 is disposed at the top of the outer cylinder 3 to cover the air pump 23 and the motor 221.

[0041] Furthermore, the bottom of the filter cartridge is designed as a conical structure, and an overflow hole is provided between the conical structure and the air inlet pipe 4, so that the filtered droplets can be collected through the conical surface at the bottom of the filter cartridge and discharged through the overflow hole.

[0042] To better understand this utility model, the following is combined with... Figures 1 to 4The technical solution of this utility model is described in detail below: During operation, a light hydrocarbon mixture enters the outer cylinder 3 through the inlet pipe 4 and first enters the first filter cartridge 11. Inside the first filter cartridge 11, larger droplets are effectively blocked, while the gas continues to flow through the gas passage of the first filter cartridge 11 to the second filter cartridge 12. In the second filter cartridge 12, smaller droplets are further blocked, ensuring the purity of the gas. Simultaneously, the motor 221 drives the connecting plate 222 to move the two purge pipes 211 back and forth around the circumferential direction of the outlet surfaces 102 of the first and second filter cartridges 11 and 12, respectively. The purge port 201 evenly sprays compressed gas to thoroughly and evenly purge the outlet surfaces 102 of the first and second filter cartridges 11 and 12, ensuring that droplets adhering to the outlet surfaces 102 are removed in a timely manner. The filtered gas is then discharged from the outlet 31 of the outer cylinder 3 for subsequent use.

[0043] This invention, by setting a purging mechanism 2 at the outlet surface 102 of the filter structure 1, enables reverse purging of the filter structure 1 using the purging port 201 of the purging mechanism 2. This effectively removes droplets adhering to the outlet surface 102 of the filter structure 1, ensuring unobstructed air passage, preventing filter media blockage, and extending the service life of the droplet filter. Simultaneously, by driving the purging component 22 to move the purging component 21 along the circumferential direction of the outlet surface 102, uniform purging of the entire outlet surface 102 can be achieved, improving the purging effect.

[0044] This invention, by setting at least two filter cartridges and corresponding purging components 21, with the air passages of the at least two filter cartridges decreasing in size from the inside out, forms a multi-stage filtration system. This allows it to handle droplets of different sizes, further improving droplet capture efficiency and ensuring the quality of the final product. Furthermore, the multi-stage filtration design ensures that each filter cartridge is responsible for filtering droplets of different sizes, preventing excessive clogging of the filter media due to excessive droplets. This droplet filter has advantages such as simple structure, good performance, and low maintenance costs, and is suitable for droplet separation after light hydrocarbon atomization in the petrochemical industry.

[0045] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0046] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A droplet-blocking filter, characterized in that, include: A filter structure having an inlet surface and an outlet surface, and a plurality of air passages penetrating the inlet surface and the outlet surface, so that gas flows in from the inlet surface and flows out from the outlet surface through the air passages, and the inlet surface intercepts droplets entering the air passages. as well as The purging mechanism includes a purging component connected to the filter structure, and a purging port on one side corresponding to the outflow surface for purging the outflow surface through the purging port.

2. The droplet-blocking filter according to claim 1, characterized in that, The purging port of the purging member extends along the first direction of the outflow surface. The purging member is movably connected to the filter structure and can move along the second direction of the outflow surface, which is perpendicular to the first direction.

3. The droplet-blocking filter according to claim 2, characterized in that, Both the inlet and outlet surfaces are annular surfaces, and the inlet and outlet surfaces are coaxial. The first direction is the axial direction of the outlet surface, and the second direction is the circumferential direction of the outlet surface.

4. The droplet-blocking filter according to claim 3, characterized in that, The purging component includes a purging pipe that extends along a first direction of the outflow surface, and a plurality of purging ports are sequentially opened on one side of the purging pipe along its length.

5. The droplet-blocking filter according to claim 4, characterized in that, The purging mechanism further includes a driving component, which is installed on the filter structure and has its driving end connected to the purging component, for driving the purging component to move along the second direction of the outflow surface.

6. The droplet-blocking filter according to claim 5, characterized in that, The driving component includes a motor and a connecting plate. The connecting plate is coaxially disposed on one side of the filter structure and connected to the purging component. The drive shaft of the motor is connected to the center of the connecting plate and is used to drive the connecting plate to rotate, thereby causing the purging component to rotate around the circumferential direction of the outflow surface.

7. The droplet-blocking filter according to claim 1, characterized in that, The purging mechanism also includes an air pump and a connecting pipe. The air pump is connected to the purging component through the connecting pipe and is used to provide purging gas to the purging component.

8. The droplet-blocking filter according to claim 1, characterized in that, The filtration structure includes a filter cartridge, which is arranged vertically, with its inner and outer surfaces forming an inlet surface and an outlet surface, respectively.

9. The droplet-blocking filter according to claim 8, characterized in that, The filter cartridges are provided in at least two, and the at least two filter cartridges are coaxially arranged along the same axis from the inside to the outside, with a gap between adjacent filter cartridges, and the air passage of the at least two filter cartridges decreases sequentially from the inside to the outside.

10. The droplet-blocking filter according to claim 9, characterized in that, At least two purging elements are provided, and they are respectively disposed on the outer side of the filter cartridge.

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