A filtration device

Abstract

This utility model belongs to the field of oil filter technology and discloses a filtration device. The filtration device includes a housing, a cover, a filter screen, and an enamel layer. The housing and cover are sealed together to form a filtration chamber. The filter screen is disposed within the filtration chamber and detachably connected to the housing. The filter screen's surface is covered with an enamel layer. The housing has an oil inlet and an oil outlet, both of which communicate with the filtration chamber. This filtration device solves the problems of easy clogging and difficult cleaning of filter screens, reduces the probability of clogging, and improves the cleaning efficiency of the filter screen. It also overcomes the shortcomings of traditional cleaning methods, such as low efficiency, high cost, safety hazards, and environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, and in particular to a filtration device. Background Technology

[0002] In the petrochemical industry, crude oil filtration is a crucial step in ensuring oil quality and smooth subsequent processing. Basket filters, with their compact structure and ease of operation, have become a commonly used device for crude oil filtration. They purify crude oil by intercepting impurities such as sand and sludge through an internal filter screen. However, sludge impurities in crude oil are highly viscous and adhesive. During long-term filtration of crude oil with high impurity content, these impurities easily adhere to the commonly used stainless steel or wire mesh filter screens, seep into the screen pores, and gradually accumulate, leading to filter blockage.

[0003] Currently, manual filter cleaning is inefficient and incomplete, failing to remove deeply adhered sludge and impurities, which can easily lead to secondary clogging. Steam cleaning can remove some impurities, but it requires additional steam generators, significantly increasing equipment investment and energy consumption, and the high-temperature operation poses safety hazards such as burns. While fire cleaning can remove stubborn impurities, the high temperatures can damage the filter material structure, shorten its lifespan, and the exhaust gases produced by combustion pollute the environment and pose a fire risk. Existing cleaning technologies cannot simultaneously meet the practical needs of filter anti-clogging, efficient cleaning, energy conservation and environmental protection, and safety and reliability. Utility Model Content

[0004] The purpose of this utility model is to provide a filtration device to solve the problems of easy clogging and difficult cleaning of filter screens, reduce the probability of filter screen clogging, improve the cleaning efficiency of filter screens, and overcome the defects of traditional cleaning methods such as low efficiency, high cost, safety hazards and environmental pollution.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A filtration device includes a housing, a cover, a filter screen, and an enamel layer. The housing and the cover are sealed together to form a filtration chamber. The filter screen is disposed in the filtration chamber and detachably connected to the housing. The filter screen has the enamel layer on its filtering surface. The housing has an oil inlet and an oil outlet, both of which are connected to the filtration chamber.

[0007] As an alternative to the filtration device, the housing is divided into an oil inlet section, a filtration section and a sedimentation section in sequence along the axial direction. The oil inlet section has an oil inlet on its side wall, the filtration section has a filter screen arranged along the axial direction and an oil outlet on its side wall, and the sedimentation section is located between the bottom of the oil outlet and the bottom of the housing for collecting oil sediment.

[0008] As an alternative to the filtration device, the filter screen includes a first overlapping portion, and the housing includes a second overlapping portion, the first overlapping portion and the second overlapping portion engaging.

[0009] As an alternative to the filtration device, the filtration device further includes a first fastener that passes through the first overlap and the second overlap for fixing the filter screen to the housing.

[0010] As an alternative to the filtration device, the filtration device further includes a support member. The filter screen is a cylindrical filter screen. The support member is arranged in a straight line or cross shape on the inner wall of the cylindrical filter screen, and each end of the support member is fixedly connected to the inner wall of the cylindrical filter screen.

[0011] As an alternative to the filtration device, the filter screen has a handle at one end facing the housing cover, and the handle is rotatably connected to the filter screen.

[0012] As an alternative to the filtration device, the cover is bolted to the housing.

[0013] As an alternative to the filtration device, a sealing gasket is provided between the cover and the housing.

[0014] As an alternative to the filtration device, the filtration device also includes a drive unit, the output end of which is connected to the housing cover, and the drive unit is used to drive the housing cover to open or close.

[0015] As an alternative to the filtration device, the filtration device also includes a differential pressure gauge, with two pressure taps located at the oil inlet and the oil outlet, respectively.

[0016] Beneficial effects:

[0017] This utility model provides a filtration device that forms a filtration chamber by sealing the housing and cover together. A detachable filter screen is installed within the filtration chamber, facilitating the removal and replacement of the filter screen and significantly improving its cleaning efficiency. The enamel layer on the filter screen's surface, with its smooth and corrosion-resistant properties, effectively reduces the probability of impurities adhering, thus significantly reducing the possibility of filter clogging. This structural design also avoids the problems of high manpower and material resources and high costs associated with traditional cleaning methods, while reducing potential safety hazards and environmental pollution caused by traditional cleaning methods. It provides a more efficient, environmentally friendly, safe, and economical solution for filtration operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the filtration device provided in this embodiment of the utility model;

[0019] Figure 2 yes Figure 1A magnified view of position A in the middle.

[0020] In the picture:

[0021] 1. Shell; 11. Oil inlet; 12. Oil outlet; 13. Oil inlet section; 14. Filtration section; 15. Deposition section; 16. Second overlap section;

[0022] 2. Filter screen; 21. First overlapping part;

[0023] 3. Enamel layer; 4. Handle; 5. Support component; 6. First fastener; 7. Shell cover; 8. Drive component. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] In the description of this utility model, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of the device. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "upper" and "lower," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] This embodiment provides a filtration device, such as Figure 1 and Figure 2As shown, the filtration device includes a housing 1, a cover 7, a filter screen 2, and an enamel layer 3. The housing 1 and the cover 7 are sealed together to form a filtration chamber. The filter screen 2 is disposed in the filtration chamber and is detachably connected to the housing 1. The filter surface of the filter screen 2 is provided with an enamel layer 3. The housing 1 is provided with an oil inlet 11 and an oil outlet 12, both of which are connected to the filtration chamber.

[0029] This filtration device forms a filter chamber by sealing the housing 1 and the cover 7 together. The filter screen 2, which is detachably installed within the filter chamber, facilitates its removal and replacement, significantly improving its cleaning efficiency. The enamel layer 3 on the filter surface of the filter screen 2, with its smooth and corrosion-resistant properties, effectively reduces the probability of impurities adhering, thus significantly reducing the possibility of filter screen clogging. This structural design also avoids the problems of high manpower and material resources and high costs associated with traditional cleaning methods, while reducing potential safety hazards and environmental pollution caused by traditional cleaning methods, providing a more efficient, environmentally friendly, safe, and economical solution for filtration operations.

[0030] The manufacturing process of the enamel layer 3 is as follows: First, rust and oxide scale on the surface of the filter screen 2 blank are removed with acid. Then, a porcelain enamel coating is applied and dried and fired. It is then firmly attached to the metal substrate surface of the filter screen 2 using a porcelain-ceramic bonding technology. The oleophobic properties of the enamel layer 3 reduce impurity adhesion. When soft sludge in the impurities clogs the pores of the filter screen 2, causing an increase in crude oil pressure differential, some of the soft sludge will be flushed away by the pressure, further reducing the frequency of clogging. The smooth porcelain coating of the enamel layer 3 facilitates the cleaning of sludge; simple rinsing is sufficient, requiring no special cleaning agents, significantly reducing cleaning difficulty and cost. Furthermore, the enamel layer 3 has high hardness, wear resistance, and impact resistance, ensuring long-term effective operation of the filtration device. Its corrosion resistance prevents oxidation of the metal substrate, avoiding the generation of new impurities. Its high-temperature resistance ensures that it will not crack or break under high-temperature cleaning and other operations, further enhancing the performance of the filtration device with multiple performance advantages.

[0031] like Figure 1As shown, the housing 1 is divided into an oil inlet section 13, a filtration section 14, and a sedimentation section 15 along the axial direction. An oil inlet 11 is provided on the side wall of the oil inlet section 13. A filter screen 2 is installed axially inside the filtration section 14, and an oil outlet 12 is provided on the side wall of the filtration section 14. The sedimentation section 15 is located between the bottom of the oil outlet 12 and the bottom of the housing 1 to collect oil sediment. The oil inlet 11 is located on the side wall of the oil inlet section 13, allowing crude oil to flow smoothly into the filtration device, avoiding impacts and turbulence caused by improper oil inlet methods, and ensuring the stability of the filtration process. The filter screen 2 is installed axially inside the filtration section 14, making full use of the internal space of the housing 1, allowing the crude oil to be thoroughly and efficiently filtered for impurities as it flows through the filter screen 2. The location of the oil outlet 12 on the side wall ensures that the filtered crude oil flows out smoothly. The sedimentation section 15 provides a collection space for oil sediment in the crude oil. The oil sediment settles here under the action of gravity and will not mix into the filtered crude oil again, effectively avoiding secondary pollution and improving the filtration quality. At the same time, the concentrated collection of oil sediment is also convenient for subsequent cleaning, further reducing the risk of filter screen 2 being blocked by impurities, extending the service life of filter screen 2, and reducing maintenance frequency and cost.

[0032] In this embodiment, the filtration device also includes a differential pressure gauge (not shown), with two pressure taps located at the inlet 11 and outlet 12, respectively. This allows for real-time and accurate monitoring of the pressure difference between the crude oil before and after filtration. During the detection process, when crude oil flows in through the inlet 11, the pressure tap at the inlet 11 acquires the initial pressure value; after being filtered by the filter screen 2, it flows out through the outlet 12, and the pressure tap at the outlet 12 records the pressure value after filtration. The difference between the two values ​​is the pressure drop generated during the filtration process. As impurities gradually accumulate on the surface of the filter screen 2, clogging the filtration channel, the resistance of the crude oil passing through the filter screen 2 increases, and the pressure difference between the inlet 11 and the outlet 12 rises accordingly. Operators can intuitively judge the degree of clogging of the filter screen 2 based on the pressure difference changes displayed by the differential pressure gauge. When the pressure difference reaches a preset threshold, it is immediately known that the filter screen 2 needs to be cleaned or replaced, avoiding excessive clogging of the filter screen 2 that could affect filtration efficiency or even cause equipment failure.

[0033] like Figure 1 and Figure 2 As shown, the filter screen 2 includes a first overlapping portion 21, and the housing 1 includes a second overlapping portion 16. The first overlapping portion 21 and the second overlapping portion 16 overlap and cooperate. The overlapping cooperation method makes the connection between the filter screen 2 and the housing 1 more stable and flexible. During installation, the filter screen 2 can be quickly positioned simply by accurately placing the first overlapping portion 21 onto the second overlapping portion 16, simplifying the assembly process.

[0034] Furthermore, such as Figure 2As shown, the filtration device also includes a first fastener 6, which passes through a first overlapping portion 21 and a second overlapping portion 16 for fixing the filter screen 2 and the housing 1. The first fastener 6 passing through the first overlapping portion 21 of the filter screen 2 and the second overlapping portion 16 of the housing 1 achieves a stable and rigid connection between the two. During installation, the fastening action of the first fastener 6 effectively eliminates gaps at the overlapping joints, preventing the filter screen 2 from shaking or shifting due to crude oil impact during filtration, ensuring that the filter screen 2 is always in the optimal filtration position and maintaining a stable filtration effect. During disassembly, simply loosening the first fastener 6 allows for quick separation of the filter screen 2 and the housing 1, facilitating cleaning, replacement, and other maintenance operations of the filter screen 2, significantly improving equipment maintenance efficiency. Furthermore, the fixing connection of the first fastener 6 enhances the overall structural sealing, preventing unfiltered crude oil from leaking through the overlapping gaps and ensuring the integrity and effectiveness of the filtration process. Specifically, the first fastener 6 is a bolt.

[0035] like Figure 1 As shown, the filtration device also includes a support member 5. The filter screen 2 is a cylindrical filter screen 2. The support member 5 is arranged in a straight line or cross shape on the inner wall of the cylindrical filter screen 2, and each end of the support member 5 is fixedly connected to the inner wall of the cylindrical filter screen 2. In the filtration device, fixing the straight line or cross shape support member 5 to the inner wall of the cylindrical filter screen 2 can effectively enhance the structural strength of the filter screen 2. During filtration, the support member 5 can evenly distribute the crude oil pressure, preventing the filter screen 2 from deforming and breaking; at the same time, it maintains the shape of the filter screen 2, ensuring a fit with the housing 1, preventing leakage, and ensuring filtration efficiency and stability.

[0036] like Figure 1 As shown, a handle 4 is provided at the end of the filter screen 2 facing the housing cover 7, and the handle 4 is rotatably connected to the filter screen 2. During disassembly, by rotating the handle 4 to a suitable angle, the operator can easily lift the filter screen 2 from the housing 1 without having to laboriously reach into the filter chamber to grasp it, reducing operational difficulty and labor intensity. When installing the filter screen 2, adjusting its position by rotating the handle 4 allows for more precise placement of the filter screen 2 in the corresponding position, improving assembly efficiency. Furthermore, the rotatable design of the handle 4 avoids obstructing crude oil flow during filtration, reducing fluid resistance and energy consumption. Additionally, the handle 4 can be neatly tucked away from the filter screen 2 during operation, saving space.

[0037] Specifically, the handle 4 is semi-circular in shape. During filtration, the handle 4 can rotate flexibly to fit the wall of the filter screen 2, minimizing interference with crude oil flow and reducing fluid resistance. Its rounded arc design avoids sharp edges from causing turbulence in the crude oil, ensuring that the crude oil passes smoothly through the filter screen 2. At the same time, the semi-circular structure conforms to ergonomics, making it easy for operators to grip and apply force when the filter screen 2 needs to be disassembled, and the force is evenly distributed and comfortable, making the disassembly and assembly of the filter screen 2 easier and more efficient.

[0038] In this embodiment, the cover 7 is bolted to the housing 1. Multiple evenly distributed bolts form a tight and stable sealing structure, effectively preventing crude oil leakage from the filter chamber and ensuring safe filtration operations. During installation, the bolted connection is simple to operate, allowing for quick assembly of the cover 7 and housing 1. During disassembly, simply unscrewing the bolts separates the two, facilitating the inspection, cleaning, and replacement of the filter screen 2, significantly improving the maintenance efficiency of the filtration device.

[0039] In other embodiments, the cover 7 and the housing 1 can also be snap-fit ​​connected. An elastic buckle is provided on the edge of the housing 1, and a corresponding slot is provided on the cover 7. When installing, press the cover 7 to make the buckle insert into the slot. When disassembling, the buckle is unlocked by pressing the buckle, which is convenient and quick to operate.

[0040] Specifically, a sealing gasket (not shown) is provided between the housing 1 and the cover 7, which can effectively fill any tiny gaps that may exist when the two are connected, forming a tight sealing barrier. During the operation of the filtration device, whether it is withstanding fluctuations in crude oil pressure or coping with the thermal expansion and contraction of components caused by temperature changes, the sealing gasket, with its good elasticity and flexibility, always maintains a close fit, preventing crude oil leakage and avoiding environmental pollution, material waste, and safety hazards caused by leakage. At the same time, the presence of the sealing gasket can also reduce friction and wear at the connection between the housing 1 and the cover 7, extend the service life of the components, and ensure the stable and efficient operation of the filtration device.

[0041] like Figure 1 As shown, the filtration device also includes a drive unit 8, the output end of which is connected to the housing cover 7. The drive unit 8 is used to drive the opening or closing of the housing cover 7. The filtration device, equipped with the drive unit 8 connected to the housing cover 7, achieves automated opening and closing, which is more efficient than manual operation, can precisely control the closure degree, ensure the sealing of the filter chamber, and improve the operational reliability of the filtration device. Specifically, the drive unit 8 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, or a rotary motor.

[0042] The cleaning process of the filter screen 2 of the filter device provided in this embodiment is roughly as follows: First, open the cover 7 through the drive component 8, remove the first fastener 6, and take out the cylindrical filter screen 2 with the handle 4 from the housing 1; use the handle 4 to rotate and adjust the position of the filter screen 2, and place it in the cleaning area; since the enamel layer 3 on the surface of the filter screen 2 is smooth and oil-repellent, the attached oil and sludge impurities can be removed by simply rinsing with a high-pressure water gun or ordinary water; if there are stubborn stains, use a soft brush to assist in cleaning, no special cleaning agent is required; after cleaning, check the condition of the filter screen 2, and after confirming that there is no damage, reinstall it back into the housing 1, and fix it with the first fastener 6 by the first overlapping part 21 and the second overlapping part 16, and close the cover 7 to complete the cleaning process of the filter screen 2.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A filtration device, characterized in that, The filter includes a housing (1), a cover (7), a filter screen (2), and an enamel layer (3). The housing (1) and the cover (7) are sealed together to form a filter cavity. The filter screen (2) is disposed in the filter cavity and is detachably connected to the housing (1). The filter surface of the filter screen (2) is provided with the enamel layer (3). The housing (1) is provided with an oil inlet (11) and an oil outlet (12). Both the oil inlet (11) and the oil outlet (12) are connected to the filter cavity.

2. The filtration device according to claim 1, characterized in that, The housing (1) is divided into an oil inlet section (13), a filter section (14) and a sedimentation section (15) in sequence along the axial direction. The oil inlet (11) is provided on the side wall of the oil inlet section (13). The filter screen (2) is provided in the filter section (14) along the axial direction. The oil outlet (12) is provided on the side wall of the filter section (14). The sedimentation section (15) is located between the bottom of the oil outlet (12) and the bottom of the housing (1) for collecting oil sediment.

3. The filtration device according to claim 1, characterized in that, The filter screen (2) includes a first overlapping portion (21), and the housing (1) includes a second overlapping portion (16), wherein the first overlapping portion (21) and the second overlapping portion (16) overlap and cooperate.

4. The filtration device according to claim 3, characterized in that, The filter device further includes a first fastener (6), which passes through the first overlapping part (21) and the second overlapping part (16) to fix the filter screen (2) and the housing (1).

5. The filtration device according to claim 4, characterized in that, The filtration device further includes a support member (5), the filter screen (2) is a cylindrical filter screen, the support member (5) is arranged in a straight line or cross shape on the inner side wall of the cylindrical filter screen, and each end of the support member (5) is fixedly connected to the inner side wall of the cylindrical filter screen.

6. The filtration device according to claim 1, characterized in that, The filter screen (2) is provided with a handle (4) at one end facing the cover (7), and the handle (4) is rotatably connected to the filter screen (2).

7. The filtration device according to claim 1, characterized in that, The cover (7) is bolted to the housing (1).

8. The filtration device according to claim 1, characterized in that, A sealing gasket is provided between the cover (7) and the housing (1).

9. The filtration device according to claim 1, characterized in that, The filter device also includes a drive unit (8), the output end of which is connected to the cover (7), and the drive unit (8) is used to drive the cover (7) to open or close.

10. The filtration device according to any one of claims 1-9, characterized in that, The filtration device also includes a differential pressure gauge, with two pressure taps of the differential pressure gauge located at the oil inlet (11) and the oil outlet (12), respectively.

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