Pipeline filtering device

Abstract

The invention belongs to the technical field of pipeline filtering devices, and discloses a pipeline filtering device which comprises a valve body and further comprises a filtering assembly installed in a Y-shaped filtering cavity of the valve body; the valve cover is mounted at the bottom end of the filtering cavity of the valve body and is connected with the valve body through a bolt assembly; through cooperation of the filtering assembly, the cleaning assembly and other structures, impurities in the filter cartridge are cleaned without interrupting fluid conveying, after the ball valve assembly rotates by 90 degrees, the fluid carrying the impurities is discharged through the sewage draining exit, and in the rotating process of the ball valve assembly, the impurities in the filter cartridge can be removed through the sewage draining exit. Through transmission cooperation among the gear, the tooth plate, the push rod and other structures, the rotating rod and the scraper plate connected with the outside of the rotating rod are driven to rotate, and then the scraper plate drives the brush to rotate and clean, so that sundries in the filter cartridge are cleaned and discharged under the condition of not interrupting fluid conveying in a pipeline, and the overall working efficiency of the device is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipeline filtering devices, and particularly relates to a pipeline filtering device. BACKGROUND

[0002] In industrial production and civil pipeline systems, a Y-shaped pipeline filtering device, as a key equipment for ensuring fluid cleanliness, is widely used in fields such as chemical industry, petroleum, water supply and drainage, and heating, ventilation and air conditioning. The Y-shaped pipeline filtering device can intercept solid impurities such as rust, welding slag and silt in the fluid through a filter screen, so as to effectively protect precise equipment such as pumps, valves and flow meters downstream from damage, avoid system failure caused by impurity blockage, and ensure stable operation of the pipeline system.

[0003] However, the traditional Y-shaped pipeline filtering device has significant defects in actual use. When the impurity content in the fluid is high or after long-time continuous operation, a large amount of impurities will accumulate in the filter cartridge, thereby causing a decrease in filtering efficiency. At this time, the filter cartridge needs to be manually disassembled and cleaned. The entire cleaning process involves multiple steps such as bolt disassembly, filter screen cleaning and reinstallation, and the operation process is complicated and time-consuming. In addition, the fluid conveying in the pipeline needs to be interrupted during the disassembly process, which not only affects production efficiency, but also may cause problems such as pressure fluctuation of upstream and downstream equipment due to flow interruption. Especially in the industrial scene of continuous production, the shutdown loss caused by frequent disassembly and cleaning of the filtering device is more significant. Therefore, the present application provides a pipeline filtering device to solve the problems in the background art. SUMMARY

[0004] To solve the problems in the background art, the present application provides a pipeline filtering device, which has the advantage of facilitating self-cleaning of the filter cartridge without stopping the pipeline system.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a pipeline filtering device, comprising a valve body, further comprising:

[0006] a filtering assembly installed in a Y-shaped filtering cavity of the valve body;

[0007] a valve cover installed at the bottom end of the filtering cavity of the valve body and connected with the valve body through a bolt assembly;

[0008] a cleaning assembly arranged in the interior of the valve cover;

[0009] The filtering assembly comprises a filter cartridge, the bottom of the interior of the filter cartridge is clamped with a support block, a corrugated groove is annularly formed at the bottom end of the outer wall of the support block, a motor is fixedly connected in the interior of the support block, an output shaft end of the motor is fixedly connected with a rotating rod, a scraper is spline-connected at the top end of the rotating rod, brushes are installed on both sides of the scraper, and a circular ring is fixedly connected at the middle of the bottom end of the scraper.

[0010] Preferably, the cleaning assembly comprises a ball valve assembly, one end of the ball valve assembly is fixedly connected with a valve rod, the other end of the ball valve assembly is fixedly connected with a rotating shaft, the valve rod penetrates through the outer wall of the valve cover and extends to the outside of the valve cover.

[0011] Preferably, the middle part of the outer wall of the rotating shaft is fixedly connected with a gear, the inside of the valve cover is movably connected with a toothed plate, the toothed plate is engagedly connected with the rotating shaft, and the inner wall of the cleaning assembly is provided with a square groove for limiting the toothed plate in the vertical direction.

[0012] Preferably, the inside of the supporting block is movably connected with a push rod, the top end of the push rod is fixedly connected with a spring, and the push rod is elastically connected with the supporting block through the spring.

[0013] Preferably, the top end of the toothed plate is provided with a round block, the round block penetrates through the outer wall of the valve cover and abuts against the bottom end of the push rod after moving upward, and the side of the valve cover close to the valve rod is provided with a rectangular groove.

[0014] Preferably, the bottom of the valve body and the valve cover is provided with a sewage outlet, the ball valve assembly seals the sewage outlet in the initial state, the inside of the supporting block is provided with a button, and the button is located in the middle part of the spring.

[0015] Preferably, the rotating shaft penetrates through the top end of the supporting block and extends to the outside of the supporting block, the top end of the rotating shaft is in the form of an inclined surface, the brush is attached to the inner wall of the filter cartridge, and the annular ring is movably sleeved on the outside of the corrugated groove.

[0016] Preferably, the inner wall of the annular ring is annularly provided with two convex blocks, the convex blocks are movably clamped in the inside of the corrugated groove, and when the scraping plate is rotated by the rotating shaft, the convex blocks on the inner wall of the annular ring move up and down along the track of the corrugated groove.

[0017] Preferably, the bottom of the filter cartridge is provided with an annular groove matched with the supporting block, the bottom of the supporting block is clamped in the inside of the annular groove, and the inner wall of the valve cover is attached to the bottom of the filter cartridge and the supporting block.

[0018] Preferably, the top of the scraping plate is left with a gap from the top end of the rotating shaft, and the scraping plate rotates around the rotating shaft as the axis.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The present invention achieves the cleaning of impurities in the filter cartridge without interrupting the fluid delivery through the cooperation between the filter assembly and the cleaning assembly, releases the seal on the sewage outlet after the ball valve assembly is rotated ninety degrees, and allows the fluid carrying impurities to be discharged through the sewage outlet, and during the rotation of the ball valve assembly, the transmission cooperation between the gears, the tooth plate and the push rod and other structures is triggered to run the motor, and drive the rotating rod and the scraper connected to the outside to rotate, so that the scraper drives the brush to rotate and clean the impurities on the inner wall of the filter cartridge, thereby achieving the cleaning and discharge of debris in the filter cartridge without interrupting the fluid delivery in the pipeline, thereby improving the overall working efficiency of the device.

[0021] The present invention enhances the cleaning effect of stubborn dirt on the inner wall of the filter cartridge through the cooperation between the corrugated groove, the rotating rod and the circular ring. The protrusion on the circular ring is slidably connected to the inside of the corrugated groove, so that when the scraper drives the circular ring to rotate, the protrusion can drive the circular ring and the scraper to move back and forth up and down along the trajectory of the corrugated groove. Since the rotating rod is spline-connected to the scraper, the scraper will slide up and down on the outside of the rotating rod while the rotating rod drives the scraper to rotate, thereby increasing the axial force of the brush on the inner wall of the filter cartridge. Further, through the combination of the two, the mechanical impact and friction on stubborn dirt are increased, making it easier for the dirt to fall off from the inner wall and pores of the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 An exploded view of the filter assembly of the present invention;

[0026] Figure 5 It is an enlarged view of the filter assembly of the present invention;

[0027] Figure 6 This is a schematic diagram of the front cross-section structure of the filter assembly of the present invention;

[0028] Figure 7 This is a schematic side sectional view of the cleaning assembly of the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0030] In the figure: 1. Valve body; 2. Filter assembly; 21. Filter cartridge; 22. Support block; 23. Corrugated groove; 24. Motor; 25. Rotating rod; 26. Scraper; 27. Brush; 28. Ring; 29. ​​Button; 3. Valve cover; 4. Cleaning assembly; 41. Ball valve assembly; 42. Valve stem; 43. Rotating shaft; 44. Gear; 45. Tooth plate; 46. Push rod; 47. Spring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1 to 8 As shown, the present invention provides a pipeline filtering device, including a valve body 1, and also includes:

[0033] Filter assembly 2, filter assembly 2 is installed in the Y-shaped filter cavity of valve body 1;

[0034] The valve cover 3 is installed at the bottom end of the filter cavity of the valve body 1 and is connected to the valve body 1 through a bolt assembly;

[0035] A cleaning assembly 4 is provided inside the valve cover 3;

[0036] Among them, the filter assembly 2 includes a filter cartridge 21, the inner bottom of the filter cartridge 21 is clamped with a support block 22, the bottom end of the outer wall of the support block 22 is annularly provided with a corrugated groove 23, the interior of the support block 22 is fixedly connected to a motor 24, the output shaft end of the motor 24 is fixedly connected to a rotating rod 25, the top end of the rotating rod 25 is splinedly connected to a scraper 26, brushes 27 are installed on both sides of the scraper 26, and a circular ring 28 is fixedly connected to the middle of the bottom end of the scraper 26.

[0037] like Figure 3 、 Figure 4 、 Figure 7 and Figure 8As shown, the cleaning assembly 4 comprises a ball valve assembly 41, one end of the ball valve assembly 41 is fixedly connected with a valve rod 42, the other end of the ball valve assembly 41 is fixedly connected with a rotating shaft 43, the valve rod 42 penetrates the outer wall of the valve cover 3 and extends to the outside of the valve cover 3, the middle part of the outer wall of the rotating shaft 43 is fixedly connected with a gear 44, the inside of the valve cover 3 is movably connected with a toothed plate 45, the toothed plate 45 is engaged with the rotating shaft 43, the inner wall of the cleaning assembly 4 is provided with a square groove for limiting the toothed plate 45 in the vertical direction, the inside of the supporting block 22 is movably connected with a push rod 46, the top end of the push rod 46 is fixedly connected with a spring 47, the push rod 46 is elastically connected with the supporting block 22 through the spring 47, the top end of the toothed plate 45 is provided with a round block, the round block penetrates the outer wall of the valve cover 3 and abuts against the bottom end of the push rod 46 after moving up, and the side of the valve cover 3 close to the valve rod 42 is provided with a rectangular groove.

[0038] By adopting the above scheme: the sealing of the blow-off port is released by rotating the ball valve assembly 41 by 90 degrees, so that the fluid carrying impurities is discharged through the blow-off port, and during the rotation of the ball valve assembly 41, the transmission cooperation between the gear 44, the toothed plate 45 and the push rod 46 and the like is achieved, so as to trigger the motor 24 to operate and drive the rotating rod 25 and the scraper 26 connected outside the rotating rod 25 to rotate, and then the scraper 26 drives the brush 27 to rotate to clean the impurities on the inner wall of the filter cartridge 21, so as to realize the cleaning and discharge of the impurities in the filter cartridge 21 without interrupting the fluid conveying in the pipeline, thereby improving the working efficiency of the whole device;

[0039] By arranging the spring 47, when the cleaning operation is completed, the operator reversely rotates the valve rod 42, so that the gear 44 reversely rotates under the action of external force, thereby driving the toothed plate 45 to move downward, and the toothed plate 45 moves downward to release the pushing force of the push rod 46, then the push rod 46 moves downward under the action of the elastic force of the spring 47 and its own weight, thereby releasing the abutment with the button 29, and then the motor 24 stops operating;

[0040] By arranging the rectangular groove on one side of the valve cover 3, when the valve rod 42 rotates, the rectangular groove can provide a certain avoiding space for the valve rod 42, thereby effectively preventing the valve rod 42 from colliding with the outer wall of the valve cover 3, thereby avoiding problems such as abrasion and deformation caused by collision, thereby prolonging the service life of the valve rod 42 and the device, and also reducing the noise caused by the collision, making the valve operation process more stable and quiet, in addition, preventing collision can also ensure the smoothness of the valve handle rotation, improve the precision and reliability of the valve operation.

[0041] As Figures 5 to 8As shown, the valve body 1 and the bottom of the valve cover 3 are provided with a blowdown port, the ball valve assembly 41 seals the blowdown port in the initial state, the inside of the support block 22 is provided with a button 29, the button 29 is located in the middle of the spring 47, the top end of the rotating rod 25 penetrates through the top end of the support block 22 and extends to the outside of the support block 22, the top end of the rotating rod 25 is beveled, the brush 27 is attached to the inner wall of the filter cartridge 21, and the circular ring 28 is movably sleeved outside the corrugated groove 23.

[0042] By adopting the above scheme, the top end of the rotating rod 25 is beveled, which can guide the flow of impurities when the impurities contact the top end of the rotating rod 25, so that the impurities flow more smoothly, and direct contact between the impurities and the connecting part of the rotating rod 25 and the scraper 26 is avoided, thereby avoiding blockage.

[0043] As shown in Figure 3 , Figure 4 and Figure 6 , the inner wall of the circular ring 28 is annularly provided with two protrusions, the protrusions are movably clamped in the inside of the corrugated groove 23, when the rotating rod 25 drives the scraper 26 to rotate, the protrusions on the inner wall of the circular ring 28 move up and down along the track of the corrugated groove 23, the bottom of the filter cartridge 21 is provided with an annular groove matched with the support block 22, the bottom of the support block 22 is clamped in the inside of the annular groove, the inner wall of the valve cover 3 is attached to the bottom of the filter cartridge 21 and the support block 22, and the top of the scraper 26 leaves a gap with the top end of the rotating rod 25.

[0044] By adopting the above scheme, the protrusions on the circular ring 28 are slidably connected in the inside of the corrugated groove 23, so that when the scraper 26 drives the circular ring 28 to rotate, the protrusions can drive the circular ring 28 and the scraper 26 to move up and down along the track of the corrugated groove 23, and since the rotating rod 25 is spline-connected with the scraper 26, when the rotating rod 25 drives the scraper 26 to rotate, the scraper 26 also slides up and down outside the rotating rod 25, thereby increasing the axial force of the brush 27 on the inner wall of the filter cartridge 21, and through the combination of the two, the mechanical impact and friction force on stubborn dirt is increased, so that the dirt is more easily detached from the inner wall and pores of the filter cartridge 21.

[0045] The working principle and use process of the present application are as follows: the two ends of the valve body 1 are connected with the upstream pipeline and the downstream pipeline in the pipeline system respectively, then the fluid enters the filter cartridge 21 from the inlet end of the valve body 1, and the larger particle impurities are settled to the bottom of the valve body 1 under the action of gravity, then the fluid meeting the filtering requirements passes through the mesh of the filter cartridge 21 and flows out from the outlet end communicated with the filter cartridge 21 into the downstream pipeline;

[0046] When the filter cartridge 21 is used for a period of time, the inside impurities are too much, at this time, the operator rotates the valve stem 42 manually, thereby rotating the ball valve assembly 41 around the axis by the valve stem 42, when the ball valve assembly 41 rotates ninety degrees, the through hole on the ball valve assembly 41 is aligned with the blowdown port at the valve body 1 and the valve cover 3 respectively, thereby unsealing the blowdown port, and then the fluid can be discharged through the blowdown port;

[0047] The ball valve assembly 41 rotates at the same time, and drives the gear 44 to rotate through the rotating shaft 43, thereby driving the toothed plate 45 to move linearly up in the square groove through the meshing connection of the gear 44 and the toothed plate 45, after the toothed plate 45 moves up, the circular block at the top end of the toothed plate 45 abuts against the bottom of the push rod 46, and pushes the push rod 46 to move upward, thereby pressing the spring 47 by the push rod 46, so that the circuit inside the support block 22 is closed, and the closed circuit signal is transmitted to the motor 24, thereby starting the motor 24, and driving the rotating rod 25 to rotate, at the same time, the rotating rod 25 rotates through the spline connection with the scraper 26, thereby driving the scraper 26 and the brushes 27 at both ends thereof to rotate synchronously, and then cleaning and scraping the impurities on the inner wall of the filter cartridge 21 through the brushes 27;

[0048] The scraper 26 rotates at the same time, and drives the circular ring 28 at the bottom end to rotate, thereby making the protrusions on the inner wall of the circular ring 28 slide along the track of the corrugated groove 23, and since the support block 22 is circumferentially limited by the annular groove at the bottom of the filter cartridge 21, the protrusions can only drive the circular ring 28 to move up and down along the track of the corrugated groove 23, thereby making the circular ring 28 drive the scraper 26 to rotate while sliding up and down on the surface of the rotating rod 25, thereby increasing the axial force of the brushes 27 on the inner wall of the filter cartridge 21, and through the combination of the two, the mechanical impact and friction force on the stubborn dirt is increased, so that the dirt is more easily detached from the inner wall and pores of the filter cartridge 21;

[0049] The brushes 27 clean and scrape the impurities and dirt inside the filter cartridge 21 at the same time, and the dirt flows out with the fluid through the blowdown port, thereby realizing the cleaning and discharge of the impurities in the filter cartridge 21 while the fluid in the pipeline is continuously conveyed, thereby improving the convenience and practicality of the device, when the impurities in the filter cartridge 21 are completely discharged, at this time, the operator reversely rotates the valve stem 42, thereby making the surface of the valve stem 42 tightly abut against the edge of the blowdown port, thereby re-sealing, at the same time, the toothed plate 45 also unapplies the pushing force to the push rod 46, thereby making the push rod 46 unpress the button 29, and then the circuit inside the support block 22 is disconnected, and the motor 24 stops running, finally, the fluid in the device normally flows.

[0050] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0051] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A pipeline filtering device, comprising a valve body (1), characterized in that: Also included are: A filter assembly (2), wherein the filter assembly (2) is installed in the Y-shaped filter cavity of the valve body (1); A valve cover (3), the valve cover (3) being mounted on the bottom end of the filter cavity of the valve body (1) and connected to the valve body (1) via a bolt assembly; a cleaning assembly (4), the cleaning assembly (4) being arranged inside the valve cover (3); The filter assembly (2) includes a filter cartridge (21), a support block (22) is clamped on the inner bottom of the filter cartridge (21), a corrugated groove (23) is provided in an annular manner on the bottom end of the outer wall of the support block (22), a motor (24) is fixedly connected to the inner part of the support block (22), a rotating rod (25) is fixedly connected to the output shaft end of the motor (24), a scraper (26) is splined at the top end of the rotating rod (25), brushes (27) are installed on both sides of the scraper (26), and a circular ring (28) is fixedly connected to the middle part of the bottom end of the scraper (26).

2. The pipeline filtering device according to claim 1, characterized in that: The cleaning assembly (4) includes a ball valve assembly (41), one end of the ball valve assembly (41) is fixedly connected to a valve stem (42), the other end of the ball valve assembly (41) is fixedly connected to a rotating shaft (43), and the valve stem (42) passes through the outer wall of the valve cover (3) and extends to the outside of the valve cover (3).

3. The pipeline filtering device according to claim 2, characterized in that: A gear (44) is fixedly connected to the middle of the outer wall of the rotating shaft (43), and a tooth plate (45) is movably connected inside the valve cover (3). The tooth plate (45) is meshed with the rotating shaft (43), and a square groove is provided on the inner wall of the cleaning assembly (4) for limiting the tooth plate (45) in the vertical direction.

4. The pipeline filtering device according to claim 1, characterized in that: The support block (22) is movably connected to a push rod (46) inside, and a spring (47) is fixedly connected to the top end of the push rod (46). The push rod (46) is elastically connected to the support block (22) via the spring (47).

5. The pipeline filtering device according to claim 3, characterized in that: A round block is provided at the top end of the tooth plate (45), which penetrates the outer wall of the valve cover (3) and abuts against the bottom end of the push rod (46) after moving upward. A rectangular groove is provided on the side of the valve cover (3) close to the valve stem (42).

6. The pipeline filtering device according to claim 2, characterized in that: The bottoms of the valve body (1) and the valve cover (3) are both provided with drainage ports. The ball valve assembly (41) seals the drainage ports in the initial state. A button (29) is provided inside the support block (22), and the button (29) is located in the middle of the spring (47).

7. The pipeline filtering device according to claim 1, characterized in that: The rotating rod (25) passes through the top of the support block (22) and extends to the outside of the support block (22). The top of the rotating rod (25) is inclined. The brush (27) fits the inner wall of the filter cartridge (21). The ring (28) is movably sleeved on the outside of the corrugated groove (23).

8. The pipeline filtering device according to claim 1, characterized in that: The inner wall of the circular ring (28) is provided with two protrusions in an annular shape. The protrusions are movably engaged with the inside of the corrugated groove (23). When the rotating rod (25) drives the scraper (26) to rotate, the protrusions on the inner wall of the circular ring (28) move back and forth along the trajectory of the corrugated groove (23).

9. The pipeline filtering device according to claim 1, characterized in that: The bottom of the filter cartridge (21) is provided with an annular groove adapted to the support block (22), the bottom of the support block (22) is clamped inside the annular groove, and the inner wall of the valve cover (3) is in contact with the bottom of the filter cartridge (21) and the support block (22).

10. The pipeline filtering device according to claim 1, characterized in that: A gap is left between the top of the scraper (26) and the top of the rotating rod (25), and the scraper (26) rotates with the rotating rod (25) as the axis.

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