Filter assembly and flow measuring instrument

Abstract

The utility model relates to the technical field of liquid filtration, particularly relate to a filter assembly and flow measuring instrument, its effective circumvention hard impurity leads to the risk of sensing unit jam, component wear and tear, and has reduced the cleaning difficulty of self, including: filter drum, the inside of filter drum is provided with filter cavity, and both sides of filter drum are provided with liquid inlet and outlet, the towed ring is fixedly set on the inner side wall in filter drum, and the lowest point of towed ring is set below liquid inlet, and the highest point of towed ring is set above liquid outlet, the top cap is covered and set at the top end of filter drum, and the connecting place of top cap and filter drum is provided with sealing assembly, the filter groove is provided with the hanging ring on the filter groove, and the filter groove sets up inside filter drum, and the hanging ring is set on towed ring.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid filtration, and in particular to a filter assembly and a flow meter. Background Technology

[0002] In industrial production, municipal water supply, and environmental monitoring, flow meters are core equipment for precise control of fluid flow. Their measurement accuracy directly affects production efficiency, resource allocation, and process stability. However, in real-world applications, fluid media often contain solid impurities, suspended particulate matter, or flocculent pollutants. If these impurities directly enter the sensing unit of the flow meter, they can cause a series of problems. On the one hand, impurities easily adhere to the surface of the sensing components, leading to decreased measurement sensitivity, data drift, and increased errors. In severe cases, they can even cause the sensing unit to jam, rendering the equipment unable to function properly. On the other hand, long-term scouring or wear of the sensing components by hard impurities can shorten the lifespan of the flow meter, increase equipment maintenance costs and downtime for repairs, and significantly disrupt continuous production processes. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a filter component and a flow meter.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The present invention provides a filter assembly comprising:

[0006] The filter cartridge has a filter chamber inside and inlet / outlet ports on both sides.

[0007] The hanging ring is fixedly installed at an angle on the inner wall of the filter cartridge. The lowest point of the hanging ring is located below the liquid inlet, and the highest point of the hanging ring is located above the liquid outlet.

[0008] The top cover is installed on the top of the filter cartridge, and a sealing component is provided at the connection between the top cover and the filter cartridge.

[0009] The filter tank is equipped with a hanging ring. The filter tank is located inside the filter cylinder, and the hanging ring is attached to the drag ring.

[0010] Furthermore, the tow ring and the hanging ring are made of magnets, and both the tow ring and the hanging ring have an anti-rust coating on their surfaces.

[0011] Furthermore, two positioning plates are provided at the bottom of the filter tank, and two positioning grooves are provided at the bottom of the filter cylinder, with the two positioning plates respectively inserted into the two positioning grooves.

[0012] Furthermore, a lifting handle is provided on the hanging ring.

[0013] Furthermore, the sealing assembly includes a sealing ring, which is disposed at the contact point between the top cover and the top of the filter cartridge.

[0014] Furthermore, the sealing assembly also includes:

[0015] The first locking clamp is wrapped and fastened to the top edge of the top cover and the top of the filter cylinder. The end of the first locking clamp is provided with a locking screw, and a locking wing nut is provided on the threaded locking screw.

[0016] The second locking clamp is hinged to the first locking clamp. The second locking clamp is also wrapped and clamped on the top edge of the top cover and the top of the filter cylinder. The second locking clamp is provided with a locking block, which cooperates with the locking screw and the locking butterfly nut to fix the first locking clamp and the second locking clamp.

[0017] Furthermore, the top cover is made of transparent tempered glass.

[0018] The filter assembly and flow meter provided by this utility model, as described above, have the following beneficial effects:

[0019] The filter tank directly receives the fluid flowing in from the inlet, effectively intercepting solid impurities and suspended particulate matter in the fluid. This prevents impurities from directly entering the sensing unit of the flow meter. The angled design of the hanging ring creates a bottom-in, top-out flow path for the fluid within the filter chamber, extending the fluid's residence time in the filter tank, improving impurity interception efficiency, and further reducing the interference of impurities on measurement accuracy, ensuring the accuracy and stability of flow data. Through the pre-filtration effect of the filter tank, hard impurities are completely blocked within the filter assembly, preventing them from entering the flow meter and eroding or wearing down the sensing components. This effectively avoids the risk of sensing unit jamming and component wear caused by hard impurities, reducing the frequency of flow meter failures, significantly extending equipment lifespan, and lowering costs incurred by enterprises due to equipment maintenance and replacement. The overlapping structure of the hanging and drag rings allows for quick assembly and disassembly of the filter tank. During maintenance, there is no need to disassemble the filter cylinder; simply open the top cover to remove the filter tank for cleaning or replacement, significantly reducing operation time. Simultaneously, the filter tank's centralized collection of impurities prevents them from accumulating dispersedly within the filter chamber, further reducing cleaning difficulty. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2This is a cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a magnified schematic diagram of the filter tank.

[0024] Figure 4 This is a schematic diagram of the positioning groove structure;

[0025] The following labels are used in the attached diagram: 11. Filter cylinder; 12. Hanging ring; 13. Top cover; 14. Filter tank; 15. Hanging ring; 16. Positioning plate; 17. Positioning groove; 18. Lifting handle; 19. Sealing ring; 1a. First locking clamp; 1b. Locking screw; 1c. Locking butterfly nut; 1d. Second locking clamp. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] See Figure 1-4 As shown;

[0028] A filtering component according to an embodiment of the present invention includes:

[0029] The filter cartridge 11 has a filter chamber inside and inlet and outlet ports on both sides.

[0030] The hanging ring 12 is obliquely fixed on the inner wall of the filter cylinder 11. The lowest point of the hanging ring 12 is located below the liquid inlet, and the highest point of the hanging ring 12 is located above the liquid outlet.

[0031] A top cover 13 is mounted on the top of the filter cartridge 11, and a sealing component is provided at the connection between the top cover 13 and the filter cartridge 11.

[0032] A filter tank 14 is provided with a hanging ring 15. The filter tank 14 is located inside the filter cylinder 11, and the hanging ring 15 is attached to the hanging ring 12.

[0033] By adopting the above technical solution, the fluid to be measured first enters the filter chamber through the inlet on one side of the filter cylinder 11. Since the hanging ring 12 is fixed obliquely to the inner wall of the filter cylinder 11, and its lowest point is located below the inlet, after the fluid enters the filter chamber, it will naturally flow towards the filter tank 14 along the inclined direction of the hanging ring 12, and the fluid can directly flow into the filter tank 14. In the fluid entering the filter tank 14, solid impurities, particulate matter, and flocculent pollutants will be intercepted by the tank structure of the filter tank 14. At the same time, since the highest point of the hanging ring 12 is located above the outlet, the filtered clean fluid... The liquid needs to rise along the gap between the filter tank 14 and the inner wall of the filter cylinder 11 until it reaches the height of the outlet, then flows out of the outlet and into the subsequent flow measurement sensor unit. When impurities accumulate to a certain extent in the filter tank 14, the top cover 13 on the top of the filter cylinder 11 can be opened directly. By pulling up the hanging ring 15 of the filter tank 14, the filter tank 14 can be removed from the hanging ring 12 for cleaning or replacement. After cleaning, simply put the hanging ring 15 back on the hanging ring 12 and close the top cover 13 to restore its use. The filter tank 14 directly receives the liquid flowing in from the inlet. The fluid can be completely intercepted, including solid impurities and suspended particulate matter, preventing impurities from directly entering the sensing unit of the flow meter. The inclined design of the drag ring 12 creates a bottom-in, top-out flow path for the fluid within the filter chamber, extending the fluid's residence time in the filter tank 14, improving impurity interception efficiency, and further reducing the interference of impurities on measurement accuracy, ensuring the accuracy and stability of flow data. Through the pre-filtration effect of the filter tank 14, hard impurities are completely blocked within the filter assembly, preventing them from entering the flow meter with the fluid and scouring or wearing down the sensing components. This design avoids the risk of sensor unit jamming and component wear caused by hard impurities, reduces the failure frequency of flow meters, significantly extends the service life of the equipment, and reduces the cost of equipment maintenance and replacement for enterprises. Through the overlapping structure of the hanging ring 15 and the drag ring 12, the filter tank 14 can be quickly disassembled and assembled. During maintenance, there is no need to disassemble the filter cylinder 11. Only the top cover 13 needs to be opened to take out the filter tank 14 for cleaning or replacement, which greatly shortens the operation time. At the same time, the concentrated collection of impurities by the filter tank 14 prevents impurities from being dispersed and accumulated in the filter chamber, further reducing the difficulty of cleaning.

[0034] As a preferred embodiment of the above technical solution, the tow ring 12 and the hanging ring 15 are made of magnets, and both the tow ring 12 and the hanging ring 15 are provided with an anti-rust coating.

[0035] In this embodiment, traditional purely mechanically stacked filter tanks are prone to loosening and displacement when fluid flow rate fluctuates or impurities collide, potentially causing some unfiltered fluid to flow directly into the outlet from the gap between the filter tank and the filter cylinder, affecting the filtration effect. However, the magnetic hanging rings and pendant rings, through magnetic force, tightly adhere to the filter tank, stably fixing it in a preset position and preventing displacement during operation. This ensures that all incoming fluid is filtered before flowing out. For common ferromagnetic impurities in the fluid, the magnetic hanging rings 12 and 15 actively attract these impurities through a magnetic field, overcoming the limitations of traditional filter tanks that rely solely on physical interception. This forms a dual filtration mode combining physical interception and magnetic adsorption, more thoroughly removing ferromagnetic impurities from the fluid and preventing them from entering the flow meter's sensing unit and causing adhesion or jamming. This further reduces the risk of measurement data drift and increased error, improving the accuracy of flow measurement.

[0036] As a preferred embodiment of the above technical solution, such as Figures 3 to 4 As shown, two positioning plates 16 are provided at the bottom of the filter tank 14, and two positioning grooves 17 are provided at the bottom of the filter cylinder 11. The two positioning plates 16 are respectively inserted into the two positioning grooves 17.

[0037] In this embodiment, when the fluid enters the filter cylinder 11 and flows through the filter tank 14, even in the face of a sudden increase in fluid velocity and concentrated impact of impurities on the side wall of the filter tank 14, the positioning plate 16 and the positioning groove 17 at the bottom can restrict the lateral displacement of the filter tank 14 through the insertion and cooperation. The groove structure of the positioning groove 17 will provide lateral support to the positioning plate 16, preventing the filter tank 14 from swaying or rotating due to external impact. At the same time, combined with the magnetic adsorption of the top hanging ring 15 and the drag ring 12, the filter tank 14 will maintain a stable state of fixed vertical position, ensuring that the filter tank 14 always maintains a preset relative position with the inlet and outlet, without affecting the normal flow and filtration of the fluid, thus improving the stability of use.

[0038] As a preferred embodiment of the above technical solution, such as Figure 2 As shown, a lifting handle 18 is provided on the hanging ring 15;

[0039] In this embodiment, the traditional design without a lifting handle requires operators to directly grasp the hanging ring 15 or the side wall of the filter tank 14 for disassembly and assembly. If the hanging ring 15 is small or has a smooth surface, it is easy for the hand to slip; if the side wall of the filter tank 14 is contaminated with corrosive impurities, it may also cause hand injury. However, the lifting handle 18 provides a stable point of force application, and operators do not need to find a gripping position. They can directly and quickly complete the removal and installation of the filter tank by using the handle, which greatly shortens the time of a single maintenance operation, reduces equipment downtime, ensures production continuity, and improves the safety of maintenance operations.

[0040] As a preferred embodiment of the above technical solution, such as Figure 2 As shown, the sealing assembly includes a sealing ring 19, which is disposed at the joint between the top cover 13 and the top of the filter cartridge 11.

[0041] In this embodiment, after the installation or maintenance of the filter tank 14 is completed, the operator places the top cover 13 on the top of the filter cylinder 11. At this time, the sealing ring 19 located at the joint between the top cover 13 and the top of the filter cylinder 11 will be squeezed by the weight of the top cover 13 and the closing pressure. The sealing ring 19 is usually made of elastic material and will deform under pressure, tightly filling the gap between the top cover 13 and the top of the filter cylinder 11 to form an initial seal. This can effectively prevent the fluid in the filter chamber from leaking from the connection between the top cover and the filter cylinder. At the same time, for fluids containing volatile components or odors, the sealing ring 19 can also prevent gas from escaping from the gap, avoiding environmental pollution or the risk of personnel inhalation.

[0042] As a preferred embodiment of the above technical solution, such as Figure 1 As shown, the sealing assembly also includes:

[0043] The first locking clamp 1a is wrapped and fastened to the top edge of the top cover 13 and the top edge of the filter cylinder 11. The end of the first locking clamp 1a is swung with a locking screw 1b, and a locking butterfly nut 1c is threaded on the locking screw 1b.

[0044] The second locking hoop 1d is hinged to the first locking hoop 1a. The second locking hoop 1d is also wrapped and clamped on the top edge of the top cover 13 and the top edge of the filter cylinder 11. The second locking hoop 1d is provided with a locking block. The locking block cooperates with the locking screw 1b and the locking nut 1c to fix the first locking hoop 1a and the second locking hoop 1d.

[0045] In this embodiment, after the operator places the top cover 13 on the top of the filter cylinder 11 and the sealing ring 19 forms an initial seal under pressure, the seal needs to be further strengthened by tightening the locking rings: First, rotate around the hinge point of the first locking ring 1a and the second locking ring 1d so that the two locking rings respectively wrap around and are clamped to the top edge of the top cover 13 and the filter cylinder 11. At this time, the inner wall of the locking ring will fit tightly against the outer wall of the top cover and the filter cylinder, forming a ring-shaped support; then, swing the locking screw 1b at the end of the first locking ring 1a so that it is engaged in the locking block groove on the second locking ring 1d; finally, rotate the locking wing nut 1c on the locking screw 1b clockwise, and as the wing nut and the screw thread engage... When the first and second locking clamps 1a and 1d are closed, they will tighten towards the center, continuously compressing the mating surfaces of the top cover 13 and the filter cylinder 11, further compressing the sealing ring 19 until the sealing ring completely fills the gap and the locking clamps are no longer loose. The first and second locking clamps, through a circumferential locking mechanism, can provide a uniform radial tightening force, firmly fixing the top cover and the filter cylinder and preventing the top cover from warping. At the same time, the continuous compression of the sealing ring maintains a high compression, ensuring that even if the pressure inside the filter chamber reaches a high value, there is no gap between the sealing ring and the mating surface, completely eliminating high-pressure fluid leakage. This allows the device to be adapted to high-pressure conditions such as industrial high-pressure pipelines and hydraulic systems, preventing the seal from loosening after long-term use and improving the seal durability.

[0046] As a preferred embodiment of the above technical solution, the top cover 13 is made of transparent tempered glass;

[0047] In this embodiment, the transparent top cover allows for observation without shutting down the machine. Operators can determine the maintenance time based on the actual amount of impurities accumulated. In continuous industrial production, peak production periods can be avoided, and the machine can be shut down for cleaning during low-load periods, significantly reducing production interruptions caused by blind maintenance and improving production continuity. At the same time, it avoids excessive accumulation of impurities that clog the filter tank, ensuring long-term stable filtration efficiency and guaranteeing the purity of the fluid entering the flow meter.

[0048] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A filter assembly, characterized in that, include: A filter cartridge, wherein a filter chamber is provided inside the filter cartridge, and inlet and outlet ports are provided on both sides of the filter cartridge; A hanging ring is obliquely fixed on the inner wall of the filter cylinder, with the lowest point of the hanging ring located below the liquid inlet and the highest point of the hanging ring located above the liquid outlet. A top cover is installed on the top of the filter cylinder, and a sealing component is provided at the connection between the top cover and the filter cylinder; A filter tank is provided with a hanging ring. The filter tank is located inside the filter cylinder, and the hanging ring is placed on the hanging ring.

2. A filter assembly as described in claim 1, characterized in that, The towing ring and the hanging ring are made of magnets, and both the towing ring and the hanging ring have an anti-rust coating on their surfaces.

3. A filter assembly as described in claim 1, characterized in that, The bottom of the filter tank is provided with two positioning plates, and the bottom of the filter cylinder is provided with two positioning grooves. The two positioning plates are respectively inserted into the two positioning grooves.

4. A filter assembly as described in claim 1, characterized in that, The hanging ring is equipped with a lifting handle.

5. A filter assembly as described in claim 1, characterized in that, The sealing assembly includes a sealing ring, which is disposed at the contact point between the top cover and the top of the filter cartridge.

6. A filter assembly as described in claim 1, characterized in that, The sealing assembly further includes: The first locking clamp is wrapped and fastened to the top edge of the top cover and the top edge of the filter cylinder. The end of the first locking clamp is swayably provided with a locking screw, and a locking wing nut is threadedly fitted on the locking screw. The second locking clamp is hinged to the first locking clamp. The second locking clamp is also wrapped and fastened to the top edge of the top cover and the top edge of the filter cylinder. The second locking clamp is provided with a locking block. The locking block cooperates with the locking screw and the locking nut to fix the first locking clamp and the second locking clamp.

7. A filter assembly as described in claim 1, characterized in that, The top cover is made of transparent tempered glass.

8. A flow meter, characterized in that, It includes a flow meter body and a filter assembly as described in any one of claims 1-7, which is connected to the flow meter body.

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