Optimized filtering equipment

Abstract

The utility model provides optimized filtering equipment which comprises a barrel shell, a sealing cover arranged on a top opening of the barrel shell, a locking device arranged between the barrel shell and the sealing cover, an inlet formed in one side of the barrel shell, an outlet formed in the other side of the barrel shell, and a filter element placed in the barrel shell, the filter element comprises an inner filter barrel and an outer filter barrel which are nested inside and outside, and an inclined opening is formed in the top of the outer filter barrel. The lower inclined bottom edge of the inclined opening faces the inlet, the upper inclined top edge of the inclined opening faces the outlet, an annular gap is formed between the inner filter cartridge and the outer filter cartridge, filter cotton is arranged in the annular gap, the filter cotton is repeatedly folded and bent into an annular structure, a pressure indicator is arranged on the sealing cover, and a pressure measuring head of the pressure indicator extends into a cartridge cavity of the inner filter cartridge. Water impurities are adsorbed through the filter cotton, expansion occurs, an oil way is blocked, the water impurities are prevented from being supplied out along with fuel oil, and safety guarantee is improved; the effective area of the filter cotton is increased due to the folding state, and the filtering efficiency and effect are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a water filtration system for oil depots, particularly an optimized filtration device. Background Technology

[0002] Currently, the filters used when unloading oil at oil depots still primarily use single-layer metal mesh as the filtration medium.

[0003] On the one hand, while single-layer metal mesh can filter out larger solid particles, its filtration effect is very limited for small particles. On the other hand, when water or impurities are present in the pipeline, filtration equipment using metal mesh as the primary filtration medium cannot effectively block them, failing to detect water and allowing it to be released with the fuel, posing a safety threat. Furthermore, downstream industries such as gas stations are increasingly imposing stricter requirements on the quality of fuel dispensed from oil depots.

[0004] In summary, existing oil filters have the following drawbacks:

[0005] 1. Unstable filtration effect: The effectiveness of the filtration device may be affected by the type and quantity of impurities in the oil. For example, when different types of particulate matter (such as water, dust, iron filings, etc.) are present in the oil, the filtration capacity of the filtration device may be uneven, thus affecting the cleanliness of the oil.

[0006] 2. Filter clogging problem: When the oil contains large particulate impurities, the filter is prone to clogging, especially under high flow and high viscosity conditions. Moreover, clogging may not be detected in time, leading to a surge in pressure inside the pipe and creating a safety hazard.

[0007] 3. Low processing efficiency: Some oil depot unloading and dispensing filtration devices may have low operating efficiency under high flow or high pressure conditions. The filtration device may not be able to fully filter the oil when the oil flow rate is too fast, resulting in incomplete filtration and affecting the quality of the final oil product.

[0008] Addressing these shortcomings typically requires technological improvements and equipment upgrades, such as using more efficient filter media, optimizing design to improve filtration efficiency, and increasing automated monitoring. This can improve the quality of oil filtration, reduce maintenance costs, and ensure smooth oil depot unloading and dispensing operations and stable oil quality. Utility Model Content

[0009] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an optimized filtration device.

[0010] The objective of this utility model can be achieved through the following technical solution: An optimized filtration device includes a cylindrical shell, a cap on the top opening of the cylindrical shell, a locking device between the cylindrical shell and the cap, an inlet on one side of the cylindrical shell and an outlet on the other side, a filter element placed inside the cylindrical shell, the filter element including an inner filter cylinder and an outer filter cylinder nested inside and outside, the top of the outer filter cylinder having an inclined opening, the lower bottom edge of the inclined opening facing the inlet, the upper top edge of the inclined opening facing the outlet, an annular gap forming between the inner filter cylinder and the outer filter cylinder, filter cotton placed in the annular gap, the filter cotton being repeatedly folded and bent into an annular structure, a pressure indicator on the cap, the pressure measuring head of the pressure indicator extending into the cavity of the inner filter cylinder.

[0011] In the above-mentioned optimized filtration device, the filter cotton is a rectangular sheet, the width of the rectangular sheet is not greater than the height of the annular gap, and the fold width of the rectangular sheet is not greater than the width of the annular gap; the filter cotton has fold gaps, and the fold gaps connect with the annular gaps to form a tortuous filtration path.

[0012] In the above-mentioned optimized filtration device, the filter element includes a chassis, on which an inner ring groove and an outer ring groove are provided. The bottom edge of the inner filter cylinder is embedded in the inner ring groove to form a snap-fit ​​assembly, and the bottom edge of the outer filter cylinder is embedded in the outer ring groove to form a snap-fit ​​assembly. Several flow holes are opened on the cylinder walls of the inner filter cylinder and the outer filter cylinder.

[0013] In the above-mentioned optimized filtration device, the inclined port includes a support cylinder wall, the support cylinder wall has an inclined port edge, the outer circumference of the port edge is integrally connected to a flange, and a handle is fixedly connected to the flange.

[0014] In the above-mentioned optimized filtration device, an inclined boss is provided on the inner circumference of the top opening of the shell, and the flange overlaps the inclined boss to form a positioning.

[0015] In the above-mentioned optimized filtration equipment, several locking devices are evenly arranged around the top opening of the cylinder shell. Each locking device includes a hinge seat disposed on the outer wall of the cylinder shell. The hinge seat is rotatably connected to a lead screw via a shaft. A threaded engagement is formed by threaded connection on the lead screw. A notch 1 is provided on the edge of the top opening of the cylinder shell corresponding to the lead screw. A notch 2 is provided on the cover corresponding to the notch 1. The lead screw is embedded in the notch 1 and the notch 2. The threaded connection presses against the cover to form a threaded lock.

[0016] In the aforementioned optimized filtration device, the thread includes a nut seat with a threaded hole, and an annular handle is fixedly connected to the nut seat.

[0017] In the above-mentioned optimized filtration device, a handle is provided on the cover; a sealing ring is sandwiched between the cover and the top opening of the cylinder shell.

[0018] In the above-mentioned optimized filtration equipment, a drain port is provided on the bottom wall of the shell, a drain pipe is connected to the drain port, and an oil unloading valve is installed on the drain pipe.

[0019] In the above-mentioned optimized filtration equipment, a flange is provided on the inlet of the cylindrical shell, and a flange is provided on the outlet of the cylindrical shell; several support legs are provided at the bottom of the cylindrical shell.

[0020] Compared with existing technologies, this optimized filtration device has the following advantages:

[0021] 1. Improved Filtration Efficiency and Effectiveness: This filtration device uses filter cotton made of superabsorbent polymer fibers. When there is little water and impurities, it can effectively absorb moisture and impurities. When there is a lot of water and impurities, the filter cotton can expand and block the oil passage, preventing water and impurities from being discharged with the fuel. The folded state increases the effective surface area of ​​the filter cotton, and the tortuous filtration path is formed by bending it into a ring shape, which greatly improves the filtration efficiency and effectiveness.

[0022] 2. Automatic Water and Impurity Retention Function: The absorbent fiber material used in the filter cotton automatically expands when water or impurities enter, blocking the oil passage and slowing down the refueling speed until it is completely blocked, preventing water and impurities from being discharged with the fuel, thus providing highly efficient water and impurity blocking capabilities. This adaptive water and impurity retention mechanism enhances the reliability and safety of the equipment.

[0023] 3. Easy maintenance and replacement: The equipment is equipped with a convenient locking device and pressure indicator. Users can detect filter blockage by monitoring pressure changes, allowing for timely filter replacement and improving safety. The locking device design ensures secure sealing of the cover and facilitates operation and disassembly, effectively shortening maintenance time.

[0024] 4. Improved Liquid Flow: The filter element design includes inner and outer filter cartridges and an annular gap, with circular perforations promoting smooth liquid flow. The inclined design of the outer filter cartridge ensures optimal matching between the liquid flow direction and the filtration process, improving the filtration effect as the liquid flows through the filter element.

[0025] 5. Optimized Installation and Removal: The inclined boss at the top of the inner shell cooperates with the flange of the cover to effectively position and fix the filter element, ensuring that the filter element will not loosen or misalign during use. At the same time, the handle on the cover makes it easy for users to lift and install, further improving the convenience of operation.

[0026] 6. Reliable discharge system: The drain port and drain pipe at the bottom of the equipment, together with the unloading valve, can quickly discharge excess fuel when replacing the filter element, ensuring that the fuel is cleaned up during the operation, thereby avoiding possible contamination during the installation of the new filter element.

[0027] In summary, this optimized filtration device, through innovative design, improves filtration performance, convenience, stability, and the ability to detect blockages, enabling it to filter impurities in fuel more efficiently in practical applications, while ensuring user safety and convenience during operation. Attached Figure Description

[0028] Figure 1 This is a front view structural diagram of the overall appearance of this optimized filtration equipment.

[0029] Figure 2 This is a longitudinal cross-sectional view of the internal structure of this optimized filtration device.

[0030] Figure 3 This is a front view structural diagram of the filter element in this optimized filtration device.

[0031] Figure 4 This is a cross-sectional view of the internal structure of the filter element in this optimized filtration device.

[0032] In the diagram, 1. Shell; 1a. Inclined boss; 2. Cover; 3. Handle; 4. Hinge seat; 5. Screw; 6. Thread; 7. Pressure indicator; 8. Inner filter cartridge; 9. Filter cotton; 10. Outer filter cartridge; 11. Supporting cylinder wall; 12. Flanged flange; 13. Handle; 14. Unloading valve; 15. Flange 1; 16. Flange 2; 17. Support leg; 18. Inlet pipe; 19. Outlet pipe. Detailed Implementation

[0033] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0034] like Figures 1 to 4 As shown, this optimized filtration device includes a cylindrical shell 1 with a diameter of 260 mm and a height of 312 mm. A cover 2 is provided on the top opening of the cylindrical shell 1, and a locking device is provided between the cylindrical shell 1 and the cover 2. An inlet is provided on one side of the cylindrical shell 1, and an outlet is provided on the other side. A filter element is placed inside the cylindrical shell 1. The filter element includes an inner filter cylinder 8 and an outer filter cylinder 10 nested inside each other. The top of the outer filter cylinder 10 has an inclined opening, with the downward inclined bottom edge of the inclined opening facing the inlet and the upward inclined top edge of the inclined opening facing the outlet. An annular gap is formed between the inner filter cylinder 8 and the outer filter cylinder 10. Filter cotton 9 is placed in the annular gap. The filter cotton 9 is repeatedly folded and bent into an annular structure. A pressure indicator 7 is provided on the cover 2, and the pressure measuring head of the pressure indicator 7 extends into the cylinder cavity of the inner filter cylinder 8.

[0035] like Figure 1 As shown, several locking devices are evenly arranged around the top opening of the cylindrical shell 1. The locking device includes a hinge seat 4 set on the outer wall of the cylindrical shell 1. The hinge seat 4 is rotatably connected to the lead screw 5 through a shaft. The lead screw 5 is fitted with a threaded thread 6 to form a threaded engagement assembly. A notch 1 is set on the edge of the top opening of the cylindrical shell 1 corresponding to the lead screw 5. A notch 2 is set on the cover 2 corresponding to the notch 1. The lead screw 5 is embedded in the notch 1 and the notch 2. The threaded thread 6 presses the cover 2 to form a threaded lock.

[0036] The top opening of the shell 1 has a circular edge, and a notch 1 is set on the edge corresponding to the position of each screw 5. Several notches 2 are set on the edge of the cover 2. The notches 1 and 2 are aligned and connected. The screw 5 is flipped upward and inserted into the notches 1 and 2, so that the thread 6 is placed above the cover 2. The thread 6 is screwed down along the screw until the bottom surface of the thread 6 presses the cover 2 tightly, thus completing the sealing and locking of the shell 1.

[0037] The thread 6 includes a nut seat with a threaded hole, which forms a threaded engagement with the lead screw 5. An annular handle is fixedly connected to the nut seat, and the annular handle drives the nut seat to rotate.

[0038] A handle 3 is provided on the cover 2, which is used to pick up, put down and move the cover 2; a sealing ring is sandwiched between the cover 2 and the top opening of the shell 1, which is used to achieve a sealed state when closed to prevent liquid leakage.

[0039] like Figure 2 As shown, a drain port is provided on the bottom wall of the shell 1, and a drain pipe is connected to the drain port. An oil unloading valve 14 is installed on the drain pipe. The oil unloading valve 14 is specifically a ball valve. When replacing the filter element, the oil unloading valve 14 is opened to remove excess fuel from the shell 1.

[0040] like Figure 4 As shown, the filter cotton 9 is a rectangular sheet, the width of which is no greater than the height of the annular gap, and the fold width of which is no greater than the width of the annular gap; the filter cotton 9 has fold gaps, and the fold gaps connect with the annular gaps to form a tortuous filtration path.

[0041] The filter cotton 9 measures 155mm in length and 68.5mm in diameter. Made of a high-molecular-weight absorbent fiber material, it absorbs impurities when the water volume is low; when the water volume is high, the fiber material expands to block the oil passages, preventing impurities from being released with the fuel. The filter cotton 9 can be folded into a serrated or wavy shape. Repeated folding increases the length of the filter cotton 9 within the annular gap, significantly increasing the filtration area. The resulting tortuous filtration path also extends the filtration time, effectively improving filtration efficiency and effectiveness.

[0042] like Figures 2 to 4 As shown, the filter element includes a chassis, which is a circular disc. The chassis is provided with an inner ring groove and an outer ring groove. The bottom edge of the inner filter cylinder 8 is embedded in the inner ring groove to form a snap-fit ​​assembly, and the bottom edge of the outer filter cylinder 10 is embedded in the outer ring groove to form a snap-fit ​​assembly. Several flow holes are opened on the cylinder walls of the inner filter cylinder 8 and the outer filter cylinder 10. The flow holes adopt a circular hole structure to facilitate the passage of liquid.

[0043] The outer filter cartridge 10 is made of stainless steel, with a height of 212mm and a diameter of 79mm. The inner filter cartridge 8 is made of galvanized stainless steel. The shell 1 has a wall thickness of 3mm, and the filter element is a basket-type straight-through filter.

[0044] like Figure 2 and 4 As shown, the inclined port includes a supporting cylinder wall 11, which is a solid wall without any openings. The supporting cylinder wall 11 has an inclined edge, and a flange 12 is integrally fixed to the outer circumference of the edge. The maximum diameter of the flange 12 is 117 mm. A handle 13 is fixed to the flange 12. The handle 13 can be a support rod or a rectangular half-frame, and it is positioned in the middle of the edge. The supporting cylinder wall 11 enables the inclined state of the inclined port and also prevents liquid from directly entering the outlet of the cylinder shell 1 through the solid wall, ensuring that all liquid flows through the filter element. The handle 13 facilitates the insertion and removal of the filter element from the cylinder shell 1.

[0045] An inclined boss 1a is provided on the inner circumference of the top opening of the shell 1, and a flange 12 overlaps the inclined boss 1a to form a positioning. Through the cooperation of the flange 12 and the inclined boss 1a, the installation and axial positioning of the entire filter element in the shell 1 are realized.

[0046] like Figure 1 As shown, a flange 15 is provided on the inlet of the shell 1, which is connected to the liquid inlet pipe 18. A flange 16 is provided on the outlet of the shell 1, which is connected to the liquid outlet pipe 19. Several support legs 17 are provided at the bottom of the shell 1 to provide overall support for the filtration equipment and improve the stability of the filtration and conveying process.

[0047] Application method of this optimized filtration equipment:

[0048] 1. Fuel flows into the cylinder shell 1 from the inlet pipe 18. When it passes through the filter element, the solid particulate impurities in the fuel are intercepted by the filter cotton 9. The filtered fuel flows out from the outlet pipe 19.

[0049] 2. When the fuel contains water or impurities, the superabsorbent polymer fibers of the filter cotton 9 can react quickly, absorb water and expand, reduce the distance between adjacent folds, block the fuel passage, slow down the refueling speed, and eventually completely block it to prevent water or impurities from being added with the fuel.

[0050] 3. When the oil passage inside the filter element is blocked, the pressure difference across the filter element increases. The pressure indicator 7 detects the pressure change inside the filter element and sends a filter element blockage message to remind you to replace the filter element.

[0051] 4. Stop the fuel flow, open the locking device, remove the cap 2, and pull out the filter element. At the same time, open the unloading valve 14 to drain excess fuel from the cylinder 1. After draining, reinstall the new filter element, replace the cap 2, close the locking device, and prepare to continue fuel flow.

[0052] This filtration equipment employs a 300-mesh woven metal filter and multiple layers of glass fiber with varying filtration efficiencies. From the outside in, it sequentially intercepts impurities of different particle sizes. The outermost 300-mesh woven metal filter has the lowest filtration efficiency, effectively intercepting impurities of 50µm and larger. Moving inwards, the filtration efficiencies increase progressively, with glass fiber materials offering 40%, 60%, 80%, and 98% filtration efficiencies for 20µm-30µm particles. The range of impurities intercepted by these glass fiber materials decreases from the outside in, ensuring that impurities of different sizes are intercepted by glass fiber materials with different filtration efficiencies. This prevents impurities from accumulating in one or a few places, avoiding filter cake formation, thus increasing dirt-holding capacity and significantly extending service life. While maintaining filtration effectiveness and ensuring oil quality and safety, it reduces the frequency and number of filter element replacements. Furthermore, each type of glass fiber material is wrapped twice around the inner layer or the outside of the perforated tube, effectively preventing uneven thickness caused by fluctuations in material processing. Furthermore, after the oil flows through the filter element, because each type of glass fiber is wrapped in 2 layers, the oil passes through the filter element once, which is equivalent to filtering twice. Therefore, the filter element of this solution can provide a more stable and efficient filtration effect.

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An optimized filtering device comprising a cylindrical shell, a cover is arranged on the top of the cylindrical shell, a locking device is arranged between the cylindrical shell and the cover, an inlet is arranged on one side of the cylindrical shell, and an outlet is arranged on the other side, characterized in that, The filter element is placed inside the shell. The filter element includes an inner filter cylinder and an outer filter cylinder nested inside each other. The top of the outer filter cylinder has an inclined opening. The downward inclined bottom edge of the inclined opening faces the inlet, and the upward inclined top edge of the inclined opening faces the outlet. An annular gap is formed between the inner filter cylinder and the outer filter cylinder. Filter cotton is placed in the annular gap. The filter cotton is repeatedly folded and bent into an annular structure. A pressure indicator is provided on the cover. The pressure measuring head of the pressure indicator extends into the cavity of the inner filter cylinder.

2. The optimized filtration apparatus of claim 1, wherein, The filter cotton is a rectangular sheet, the width of which is not greater than the height of the annular gap, and the folded width of which is not greater than the width of the annular gap; the filter cotton has folded gaps, and the folded gaps connect with the annular gaps to form a tortuous filtration path.

3. The optimized filtration apparatus of claim 1, wherein, The filter element includes a chassis with an inner ring groove and an outer ring groove. The bottom edge of the inner filter cylinder is embedded in the inner ring groove to form a snap-fit ​​assembly, and the bottom edge of the outer filter cylinder is embedded in the outer ring groove to form a snap-fit ​​assembly. Several flow holes are formed on the cylinder walls of the inner and outer filter cylinders.

4. The optimized filtration apparatus of claim 1, wherein, The inclined opening includes a support cylinder wall, the support cylinder wall has an inclined opening edge, a flange is integrally fixed to the outer circumference of the opening edge, and a handle is fixed to the flange.

5. The optimized filtration apparatus of claim 4, wherein, An inclined boss is provided on the inner circumference of the top opening of the cylindrical shell, and the flange overlaps the inclined boss to form a positioning.

6. The optimized filtration apparatus of claim 1, wherein, Several locking devices are evenly arranged around the top opening of the cylinder shell. Each locking device includes a hinge seat disposed on the outer wall of the cylinder shell. The hinge seat is rotatably connected to a lead screw via a shaft. A threaded connection is sleeved on the lead screw to form a threaded engagement assembly. A notch 1 is provided on the edge of the top opening of the cylinder shell corresponding to the lead screw. A notch 2 is provided on the cover corresponding to the notch 1. The lead screw is embedded in the notch 1 and the notch 2. The threaded connection presses against the cover to form a threaded lock.

7. The optimized filtration apparatus of claim 6, wherein, The thread includes a nut seat with a threaded hole, and an annular shank is fixedly connected to the nut seat.

8. The optimized filtration apparatus of claim 1, wherein, A handle is provided on the cover; a sealing ring is sandwiched between the cover and the top opening of the cylinder shell.

9. The optimized filtration apparatus of claim 1, wherein, The bottom wall of the cylinder is provided with a drain port, a drain pipe is connected to the drain port, and an oil unloading valve is installed on the drain pipe.

10. The optimized filtration apparatus of claim 1, wherein, A flange is provided at the inlet of the cylindrical shell, and a flange is provided at the outlet of the cylindrical shell; several support legs are provided at the bottom of the cylindrical shell.

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