A pipeline filtering device for geothermal heating operation

Abstract

The present application relates to the field of geothermal energy heating technology, and in particular to a pipeline filtering device for geothermal energy heating operation, which includes a filter cartridge, a diverter plate, a rotating mechanism and a sliding mechanism. The filter cartridge is provided with a diverter plate and a plurality of flow holes, and the outer surface is provided with a support rod and a turntable. The turntable is connected to the elastic rod through a guide sleeve, and the elastic rod is provided with a cleaning ring and an auxiliary component. The device drives the turntable to rotate through fluid impact, driving the cleaning ring and cleaning ring 2 to dynamically scrape and clean the flow holes, and at the same time uses fluid pressure to spray and clean the flow holes, thereby reducing impurity blockage and flow rate fluctuations, ensuring that the fluid stably enters the filter cartridge, and improving the signal transmission accuracy and reliability. The present application can effectively solve the blockage problem caused by impurities in the fluid and improve the operating efficiency of the geothermal energy heating system.

Description

Technical Field

[0001] The present invention belongs to the technical field of geothermal energy heating, and in particular to a pipeline filtering device for geothermal energy heating operation. Background Art

[0002] A geothermal heating system refers to the process of transmitting geothermal energy from underground to the ground through pipelines for heating. During this process, it is necessary to ensure the cleanliness of the fluid inside the pipeline to maintain the efficient operation of the system. The types of impurities that may be contained in the fluid include: mud and sand particles; corrosion products; and other suspended matter. These impurities are usually gradually generated and accumulated by the internal environment of the geothermal well or after long-term use of the pipeline. If they are not removed in time, they will have a certain impact on the normal operation of the heating system. Current geothermal heating pipelines usually have filtering devices installed at key locations to intercept solid particles in the fluid, but such devices have certain limitations in actual applications.

[0003] Although the existing pipeline filtering device can intercept some impurities in the fluid during operation, the filter device is prone to clogging due to the large differences in the size and shape of the impurities in the fluid. Especially after long-term operation, the interception efficiency of the filter device will decrease, causing some impurities to pass through and enter the subsequent pipelines, thereby adversely affecting the performance of the heating equipment. In addition, the existing filter device often needs to interrupt the operation of the heating system for cleaning and maintenance, which reduces the overall efficiency of the heating operation to a certain extent. For this reason, the present invention provides a pipeline filtering device for geothermal heating operations. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: a pipeline filtering device for geothermal energy heating operation described in the present invention includes a filter cartridge, a diverter plate is fixedly connected to the left inner wall of the filter cartridge, a plurality of first flow holes are opened on the outer surface of the diverter plate, and the plurality of first flow holes are distributed in a circular array, a plurality of second flow holes are opened on the outer surface of the diverter plate, and the plurality of second flow holes are distributed in a circular array with the diverter plate as the center, a plurality of support rods are fixedly connected to the outer surface of the filter cartridge, a drive shaft is fixedly connected to the interior of the filter cartridge, and an adjustment plate is fixedly connected to one end of the drive shaft, and further includes;

[0006] The rotating mechanism includes a turntable rotatably connected to the outer surface of the filter cartridge, with guide sleeves fixedly connected to the left and right sides of the turntable. The outer surface of the guide sleeve is provided with a spiral groove. The side of the turntable close to the support rod is rotatably connected to a limit sleeve, and the side of the limit sleeve away from the turntable is fixedly connected to a plurality of guide cylinders.

[0007] The sliding mechanism includes an elastic rod fixedly connected to the inner wall of the guide cylinder near the limit sleeve, a slider is fixedly connected to the side of the elastic rod near the guide sleeve, and the end of the slider away from the elastic rod is slidably connected to the inside of the spiral groove. A plurality of elastic rods are fixedly connected to the ends of the slider away from the limit sleeve, and a cleaning ring is fixedly connected to the side wall of the cleaning ring. The side wall of the cleaning ring is provided with a plurality of through grooves, the interior of the cleaning ring is hollow, and the side wall of the cleaning ring is provided with a plurality of spray holes. The through grooves are connected to the interior of the cleaning ring.

[0008] An auxiliary cleaning assembly, the auxiliary cleaning assembly includes two connecting arms fixedly connected to the outer surface of the elastic rod, the two connecting arms are symmetrically distributed with the elastic rod as the center, the connecting arm is rotatably connected to the roller at one end away from the elastic rod, an eccentric shaft is fixedly connected between the two rollers, the eccentric shaft and the roller are eccentrically arranged, the outer surface of the eccentric shaft is rotatably connected to a push plate, and several push plates are rotatably connected to a cleaning ring 2 at one end close to the cleaning ring, and the cleaning ring 2 is slidably connected to the outer surfaces of several of the elastic rods.

[0009] Furthermore, the adjustment plate is slidably connected to the interior of the filter cartridge, and a control rod is slidably connected to the interior of the filter cartridge. A reset rod is fixedly connected to the side of the control rod close to the adjustment plate, and the end of the reset rod away from the control rod is fixedly connected to the interior of the filter cartridge. Several support rods are symmetrically distributed in groups of three with the control rod as the center, and a guide ring is fixedly connected to the interior of the filter cartridge.

[0010] Furthermore, an eccentric shaft is fixedly connected between the two rollers, the eccentric shaft and the roller are eccentrically arranged, the outer surface of the eccentric shaft is rotatably connected to a push plate, and one end of the plurality of push plates close to the cleaning ring is rotatably connected to the cleaning ring 2;

[0011] The cleaning ring 2 is slidably connected to the outer surfaces of the plurality of elastic rods.

[0012] Furthermore, a fixing assembly is provided on the outer surface of the cleaning ring, which includes several U-shaped frames fixedly connected to the side of the limit sleeve away from the turntable, one end of the U-shaped frame away from the turntable is fixedly connected to the support rod, and the U-shaped frame is slidably connected to the outer surface of the cleaning ring.

[0013] Furthermore, several through holes are provided on the top of the U-shaped frame, a flexible plate is fixedly connected to the inner wall of the U-shaped frame close to the support rod, a rectangular groove is provided on the side wall of the flexible plate, and a conveying pipe is fixedly connected to the bottom of the U-shaped frame, and the end of the conveying pipe away from the U-shaped frame is connected to the interior of the cleaning ring.

[0014] Furthermore, a compression assembly is provided inside the U-shaped frame, and the compression assembly includes a compression spring fixedly connected to the inner wall of the rectangular groove close to the conveying pipe, and the end of the compression spring away from the conveying pipe is fixedly connected to the U-shaped frame.

[0015] Furthermore, the U-shaped frame is slidably connected to the inside of the rectangular groove, and a movable plate three is fixedly connected to one side of the U-shaped frame close to the conveying pipe, and the movable plate three is slidably connected to the top outer wall of the flexible plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. A pipe filter device for geothermal heating operation described in the present invention has a design in which when the fluid flows rapidly on the surface of the filter cartridge, the high-speed flowing fluid will impact the turntable. After being impacted by the fluid, the turntable will drive the two guide sleeves to rotate. When the guide sleeve rotates, the spiral groove opened on the surface causes the slider on the elastic rod to slide back and forth inside the spiral groove. When the elastic rod slides, it pushes the cleaning ring to slide back and forth. When the through groove is pushed by the elastic rod to slide back and forth on the surface of the filter cartridge, the sliding cleaning ring will move back and forth on the surface of the multiple first flow holes and the second flow holes. Slide, and at the same time, when the elastic rod slides, the sliding of the elastic rod will drive the roller to rotate, and when the roller rotates, it will drive the cleaning ring 2 to slide back and forth through the push plate when the elastic rod and the cleaning ring slide. At this time, when the cleaning ring slides back and forth, it can reduce the blockage of the fluid due to large particles in the fluid when the fluid enters the filter cartridge through the first flow hole and the second flow hole, thereby affecting the flow of the fluid into the filter cartridge, resulting in the signal of the diverter plate cannot be normally generated or transmitted, thereby ensuring that the fluid pulse signal can be smoothly transmitted to the ground, thereby improving the accuracy and reliability of the measurement data;

[0018] 2. A pipe filtering device for geothermal heating operation described in the present invention, through this design, when the elastic rod drives the cleaning ring to slide, the sliding of the elastic rod will drive the roller to slide through the connecting arm, and when the roller slides, the friction with the surface of the filter cartridge will cause the roller to rotate while sliding, and when the roller rotates, it will drive the push plate to rotate back and forth eccentrically through the eccentric shaft, and when the push plate is subjected to the eccentric rotation of the eccentric shaft, it will drive the cleaning ring 2 to slide back and forth, and when the push plate pushes the cleaning ring 2 to slide in the direction of the cleaning ring, the sliding of the cleaning ring 2 The movement can scrape and clean the surface of the filter cartridge and the first flow hole and the second flow hole again. At the same time, when the cleaning ring 2 slides back and forth, the sliding of the cleaning ring 2 will also slide the fluid inside the fluid. At this time, the fluid will flush the surface of the cleaning ring 2 when the cleaning ring 2 slides, thereby reducing the situation where the cleaned impurities adhere to the surface of the cleaning ring 2 when the filter cartridge surface is slidingly cleaned, and reducing the accumulation of impurities on the cleaning ring 2 due to the adhesion of impurities, thereby affecting the cleaning effect of the cleaning ring 2 when it slides;

[0019] When the U-shaped frame is moved to the left, the teeth on the push plate will squeeze the U-shaped frame upwards. When the U-shaped frame is squeezed upwards by the push plate, the U-shaped frame will drive the flexible plate to elastically bend inside the U-shaped frame. At this time, the flexible plate will block the bottom of the U-shaped frame at the bottom of the U-shaped frame. At the same time, when the push plate is subjected to the eccentric rotation of the eccentric shaft to slide, the sliding of the push plate will drive the U-shaped frame to slide inside the rectangular groove through the teeth. When the U-shaped frame slides, it will drive the moving plate to squeeze the fluid between the three pairs of flexible plates and the U-shaped frame. After being squeezed, the fluid will pass through The delivery pipe enters the interior of the cleaning ring. At the same time, when the cleaning ring 2 slides back and forth due to the sliding of the push plate, the sliding of the cleaning ring 2 will squeeze the flowing fluid. At this time, the fluid squeezed by the cleaning ring 2 will enter the cleaning ring through the through groove and the fluid entering the cleaning ring through the delivery pipe will impact the first flow hole and the second flow hole through the multiple nozzles on the side wall of the cleaning ring, thereby reducing the situation where the fluid enters the filter cartridge through the first flow hole and the second flow hole. The cleaning ring slides and cleans the fluid impurities on the first flow hole and the second flow hole, which affects the fluid flow, reduces the instability of the fluid flow rate entering the filter cartridge due to the sliding of the cleaning ring, and thus affects the flow rate pressure value of the fluid entering the filter cartridge, resulting in deviation and instability of the detection signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a stereogram of the present invention;

[0022] Figure 2 Schematic diagram of the structure of cleaning ring 2 in the present invention;

[0023] Figure 3 It is a schematic structural diagram of the cleaning ring in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the diverter plate in the present invention;

[0025] Figure 5 yes Figure 4 A partial enlarged view of the middle filter cartridge;

[0026] Figure 6 Schematic diagram of the structure of the first flow hole and the second flow hole in the present invention;

[0027] Figure 7 In the present invention Figure 2 Schematic diagram of the cross-sectional structure of the middle rectangular slot;

[0028] In the figure: 1. filter cartridge; 2. diverter plate; 3. first flow hole; 4. second flow hole; 5. support rod; 6. drive shaft; 7. adjustment plate; 8. turntable; 9. guide sleeve; 10. spiral groove; 11. limit sleeve; 12. guide cylinder; 13. elastic rod; 14. slider; 15. cleaning ring; 16. through groove; 17. spray hole; 18. connecting arm; 19. roller; 20. eccentric shaft; 21. push plate; 22. cleaning ring II; 23. U-shaped frame; 24. flexible plate; 25. rectangular groove; 26. delivery pipe; 27. compression spring; 28. U-shaped frame; 29. ​​movable plate III. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figure 1-7 As shown, a pipeline filtering device for geothermal heating operation described in an embodiment of the present invention includes a filter cartridge 1, a diverter plate 2, a rotating mechanism and a sliding mechanism. The filter cartridge 1 is a cylindrical structure, and a diverter plate 2 is fixedly connected to its left inner wall. The outer surface of the diverter plate 2 is provided with a plurality of first flow holes 3 and second flow holes 4. The first flow holes 3 are distributed in a circular array, while the second flow holes 4 are distributed in a circular array with the diverter plate 2 as the center. The function of the diverter plate 2 is to preliminarily divert the fluid entering the filter cartridge 1 so that it can evenly pass through the first flow holes 3 and the second flow holes 4 into the interior of the filter cartridge 1. Several support rods 5 are fixedly connected to the outer surface of the filter cartridge 1. These support rods 5 are used to reinforce the overall structure of the filter cartridge 1 and provide support points for the installation of subsequent components. A drive shaft 6 is also fixedly connected to the interior of the filter cartridge 1, and an adjustment plate 7 is fixedly connected to one end of the drive shaft 6. The adjustment plate 7 is slidably connected to the interior of the filter cartridge 1. The sliding connection between the adjustment plate 7 and the filter cartridge 1 ensures that the adjustment plate 7 can be positioned inside the filter cartridge 1 to adapt to fluid requirements of different flow rates.

[0031] like Figure 1-7As shown, the rotating mechanism is one of the important components of this device, which is mainly composed of a turntable 8, a guide sleeve 9, a limit sleeve 11 and a guide cylinder 12. The turntable 8 is rotatably connected to the outer surface of the filter cartridge 1. The left and right sides of the turntable 8 are fixedly connected to the guide sleeve 9, and the outer surface of the guide sleeve 9 is provided with a spiral groove 10. When the fluid flows through the filter cartridge 1 rapidly, the high-speed flow of the fluid will generate an impact force on the turntable 8, so that the turntable 8 drives the guide sleeve 9 to rotate. The limit sleeve 11 is arranged on the side of the turntable 8 close to the support rod 5, and the side of the limit sleeve 11 away from the turntable 8 is fixedly connected to a number of guide cylinders 12. The guide cylinder 12 is used to guide the elastic rod 13 in the sliding mechanism to perform linear motion. The rotational connection relationship between the limit sleeve 11 and the turntable 8 ensures that the turntable 8 can rotate freely when impacted by the fluid without being stuck due to external resistance.

[0032] like Figure 1-7 As shown, the sliding mechanism primarily functions to remove impurities from the fluid. It comprises an elastic rod 13, a slider 14, a cleaning ring 15, and a through groove 16. The elastic rod 13 is fixedly connected to the inner wall of the guide cylinder 12 near the stop sleeve 11. The slider 14 is fixedly connected to the side of the elastic rod 13 near the guide sleeve 9. The end of the slider 14, away from the elastic rod 13, slides within a spiral groove 10 on the outer surface of the guide sleeve 9. When the guide sleeve 9 rotates under the impact of the fluid, the spiral groove 10 exerts a helical thrust on the slider 14, causing the slider 14 to drive the elastic rod 13 in a reciprocating motion. The other end of the elastic rod 13 is fixedly connected to the cleaning ring 15. The sidewall of the cleaning ring 15 is hollow and has several spray holes 17. The through grooves 16 communicate with the interior of the cleaning ring 15, allowing fluid to enter the cleaning ring 15 through the through grooves 16 and be ejected through the spray holes 17. The reciprocating sliding of the cleaning ring 15 can scrape the surfaces of the first flow hole 3 and the second flow hole 4, thereby removing impurities attached to the hole surface.

[0033] like Figure 1-7As shown, to further enhance the cleaning effect, the outer surface of the elastic rod 13 is also provided with an auxiliary assembly, comprising two connecting arms 18, a roller 19, an eccentric shaft 20, and a push plate 21. The two connecting arms 18 are fixedly connected to the outer surface of the elastic rod 13 and are symmetrically arranged around the elastic rod 13. Each connecting arm 18 is rotatably connected to a roller 19 at one end away from the elastic rod 13, and an eccentric shaft 20 is fixedly connected between the two rollers 19. The eccentric shaft 20 is eccentrically arranged relative to the roller 19, and a push plate 21 is rotatably connected to the outer surface of the eccentric shaft 20. The push plate 21 is rotatably connected to a cleaning ring 22 at one end near the cleaning ring 15, and the cleaning ring 22 is slidably connected to the outer surfaces of the plurality of elastic rods 13. When the elastic rod 13 drives the cleaning ring 15 to slide, the movement of the elastic rod 13 drives the roller 19 to rotate via the connecting arms 18. The rotation of roller 19 drives push plate 21 to rotate eccentrically via eccentric shaft 20. The eccentric rotation of push plate 21 pushes cleaning ring 22 to slide back and forth on the outer surface of elastic rod 13. The sliding of cleaning ring 22 can scrape the surface of filter cartridge 1 and first and second flow holes 3 and 4 for a second time, thereby further removing residual impurities.

[0034] like Figure 1-7 As shown, the outer surface of the cleaning ring 15 is also provided with a fixed assembly, comprising several U-shaped frames 23, a flexible plate 24, and a delivery tube 26. The U-shaped frames 23 are fixedly connected to the side of the retaining sleeve 11 away from the turntable 8. The end of the U-shaped frames 23 away from the turntable 8 is fixedly connected to the support rod 5. The U-shaped frames 23 are slidably connected to the outer surface of the cleaning ring 15. The top of the U-shaped frames 23 is provided with several through-holes 2. The inner wall of the U-shaped frames 23 near the support rod 5 is fixedly connected to the flexible plate 24. The side wall of the flexible plate 24 is provided with a rectangular groove 25. The bottom of the U-shaped frames 23 is fixedly connected to the delivery tube 26. The end of the delivery tube 26 away from the U-shaped frames 23 is connected to the interior of the cleaning ring 15. When the cleaning ring 15 slides under the drive of the elastic rod 13, the cleaning ring 15 squeezes the fluid. The squeezed fluid enters the cleaning ring 15 through the through-grooves 16 and then enters the cavity between the flexible plate 24 and the U-shaped frames 23 through the delivery tube 26.

[0035] like Figure 1-7As shown, to further optimize fluid flow and cleaning effects, a compression assembly is also provided within the U-shaped frame 23. The compression assembly includes a compression spring 27, a U-shaped frame 28, and a third movable plate 29. The compression spring 27 is fixedly connected to the inner wall of the rectangular slot 25 on the side near the delivery tube 26. The end of the compression spring 27 away from the delivery tube 26 is fixedly connected to the U-shaped frame 28. The U-shaped frame 28 is slidably connected to the interior of the rectangular slot 25. The side of the U-shaped frame 28 near the delivery tube 26 is fixedly connected to the third movable plate 29, which is slidably connected to the top outer wall of the flexible plate 24. When the push plate 21 is subjected to the eccentric rotation of the eccentric shaft 20, the push plate 21 pushes the U-shaped frame 28 to slide within the rectangular slot 25. The sliding of the U-shaped frame 28 will drive the movable plate 3 29 to squeeze the fluid between the flexible plate 24 and the U-shaped frame 23. The squeezed fluid will enter the interior of the cleaning ring 15 through the delivery pipe 26 and be sprayed out through the spray hole 17, thereby performing high-pressure flushing on the first flow hole 3 and the second flow hole 4.

[0036] In practice, when fluid in a geothermal heating system passes through the filter cartridge 1, it first enters the interior of the filter cartridge 1 through the first and second orifices 3 and 4 on the manifold 2. The high-speed flow of the fluid impacts the turntable 8, driving the guide sleeve 9 to rotate. This rotation of the guide sleeve 9 propels the slider 14 back and forth through the spiral groove 10. The movement of the slider 14 further drives the elastic rod 13 and cleaning ring 15 to slide back and forth. The sliding of the cleaning ring 15 scrapes the surfaces of the first and second orifices 3 and 4, removing impurities adhering to the orifice surfaces. Simultaneously, the movement of the elastic rod 13, through an auxiliary component, drives the second cleaning ring 22 to perform a secondary scraping operation, further enhancing the cleaning effect. Furthermore, the sliding of the cleaning rings 15 and 22 squeezes the fluid. The squeezed fluid enters the cleaning ring 15 through the delivery pipe 26 and is ejected through the spray hole 17, thus providing high-pressure flushing of the first and second orifices 3 and 4, ensuring smooth passage of the fluid through the orifice and into the interior of the filter cartridge 1.

[0037] Through the above structure and operating principle, the device of the present invention can effectively clean fluid impurities in the geothermal heating system, avoid the problem of fluid flow obstruction caused by impurity blockage, thereby ensuring the normal operation of the system and the accuracy of measurement data.

[0038] In order to better enable relevant personnel in this technical field to fully understand and implement the present invention, the specific implementation principle of the present invention is supplemented below with reference to a specific application scenario.

[0039] First, when the fluid of the geothermal heating system enters the filter cartridge 1, the fluid will pass through the first flow hole 3 and the second flow hole 4 on the diverter plate 2. The design of the diverter plate 2 allows the fluid to be evenly distributed, avoiding the problem of uneven impact force caused by excessive local flow rate. The annular array distribution of the first flow hole 3 and the second flow hole 4 further ensures the uniformity of the fluid when it enters the interior of the filter cartridge 1. During this process, the high-speed flowing fluid generates an impact force on the turntable 8, and the turntable 8 drives the guide sleeve 9 to rotate through its fixed connection with the guide sleeve 9. The spiral groove 10 on the outer surface of the guide sleeve 9 applies a thrust to the slider 14 during rotation, and the slider 14 reciprocates along the trajectory of the spiral groove 10. Since the slider 14 is fixedly connected to the elastic rod 13, the movement of the slider 14 is converted into the linear reciprocating motion of the elastic rod 13, thereby driving the cleaning ring 15 to slide back and forth on the inner wall of the filter cartridge 1.

[0040] Secondly, the sliding of cleaning ring 15 scrapes the surfaces of first flow hole 3 and second flow hole 4. As cleaning ring 15 slides along the inner wall of filter cartridge 1, the through grooves 16 formed in its sidewalls exert a certain squeezing effect on the fluid. The squeezed fluid enters the internal cavity of cleaning ring 15 through through grooves 16 and is ejected through spray holes 17. This process not only removes impurities adhering to the surface of the channel but also performs a secondary cleaning of the channel through high-pressure spraying, ensuring that the fluid can smoothly pass through the channel and enter the interior of filter cartridge 1. In addition, the sliding of cleaning ring 15 also scrapes the inner wall of filter cartridge 1, further reducing the accumulation of impurities.

[0041] At the same time, the movement of the elastic rod 13 drives the cleaning ring 22 to perform a secondary scraping through the auxiliary component. Specifically, the reciprocating motion of the elastic rod 13 is transmitted to the roller 19 through the connecting arm 18. During the rotation process, the roller 19 drives the push plate 21 to rotate eccentrically via the eccentric shaft 20. The eccentric rotation of the push plate 21 pushes the cleaning ring 22 to slide back and forth on the outer surface of the elastic rod 13. The sliding of the cleaning ring 22 not only scrapes the inner wall of the filter cartridge 1 and the first and second flow holes 3 and 4 for a secondary scraping, but also creates a disturbance in the fluid during the sliding process. This disturbance makes it more difficult for suspended impurities in the fluid to reattach to the surface of the cleaning ring 22, thereby avoiding the problem of reduced cleaning effect of the cleaning ring 22 due to impurity accumulation.

[0042] Furthermore, the sliding movement of cleaning ring 15 and cleaning ring 22 also squeezes the fluid between flexible plate 24 and U-shaped frame 23. As cleaning ring 15 slides, the relative motion between its outer surface and U-shaped frame 23 compresses the cavity between flexible plate 24 and U-shaped frame 23. The compressed fluid enters the interior of cleaning ring 15 through delivery pipe 26 and is ejected through spray holes 17, providing high-pressure flushing to first flow hole 3 and second flow hole 4. This design fully utilizes the dynamic properties of the fluid, converting its motion into cleaning power, eliminating the need for an additional power source and thereby improving the overall efficiency of the device.

[0043] Finally, the design of the compression assembly further optimizes the flow effect of the fluid. When the push plate 21 is subjected to the eccentric rotation of the eccentric shaft 20, the push plate 21 pushes the U-shaped frame 28 to slide inside the rectangular groove 25. The sliding of the U-shaped frame 28 drives the movable plate 3 29 to squeeze the fluid between the flexible plate 24 and the U-shaped frame 23. The squeezed fluid enters the cleaning ring 15 through the delivery pipe 26 and is ejected through the spray hole 17. This process not only improves the fluidity of the fluid, but also further cleans the first flow hole 3 and the second flow hole 4 through high-pressure injection, ensuring that the fluid can enter the filter cartridge 1 at a stable speed and pressure.

[0044] Through the above-described steps and operating principles, the device of the present invention can efficiently clean fluid impurities in geothermal heating systems. The synergistic effect of cleaning ring 15 and cleaning ring 22 ensures thorough removal of impurities, while the design of flexible plate 24, U-shaped frame 23, and compression assembly further optimizes fluid flow, avoiding measurement data deviations caused by impurity blockage or fluid instability. The entire device can complete cleaning and maintenance without interrupting the operation of the heating system, significantly improving the operational efficiency and reliability of the geothermal heating system.

[0045] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline filtering device for geothermal heating operation, comprising a filter cartridge (1), a diverter plate (2) fixedly connected to the left inner wall of the filter cartridge (1), a plurality of first flow holes (3) and second flow holes (4) opened on the outer surface of the diverter plate (2), the plurality of first flow holes (3) being distributed in an annular array, and the plurality of second flow holes (4) being distributed in a circular array with the diverter plate (2) as the center, a plurality of support rods (5) fixedly connected to the outer surface of the filter cartridge (1), a drive shaft (6) fixedly connected to the interior of the filter cartridge (1), and an adjustment plate (7) fixedly connected to one end of the drive shaft (6), characterized in that: Also includes; A rotating mechanism, the rotating mechanism comprising a turntable (8) rotatably connected to the outer surface of the filter cartridge (1), a flow guide sleeve (9) being fixedly connected to the left and right sides of the turntable (8), a spiral groove (10) being provided on the outer surface of the flow guide sleeve (9), a side of the turntable (8) close to the support rod (5) being rotatably connected to a limit sleeve (11), and a side of the limit sleeve (11) away from the turntable (8) being fixedly connected to a plurality of guide cylinders (12); A sliding mechanism, wherein the sliding mechanism comprises an elastic rod (13) fixedly connected to the inner wall of the guide cylinder (12) close to the limiting sleeve (11), a slider (14) fixedly connected to the side of the elastic rod (13) close to the guide sleeve (9), an end of the slider (14) away from the elastic rod (13) is slidably connected to the inside of the spiral groove (10), a plurality of the elastic rods (13) are fixedly connected to the ends of the cleaning rings (15) away from the limiting sleeve (11), a plurality of through grooves (16) are provided on the side wall of the cleaning ring (15), the interior of the cleaning ring (15) is hollow, a plurality of spray holes (17) are provided on the side wall of the cleaning ring (15), and the through grooves (16) are connected to the interior of the cleaning ring (15). An auxiliary cleaning assembly comprises two connecting arms (18) fixedly connected to the outer surface of an elastic rod (13), the two connecting arms (18) being symmetrically distributed with the elastic rod (13) as the center, one end of the connecting arm (18) away from the elastic rod (13) being rotatably connected to a roller (19), an eccentric shaft (20) being fixedly connected between the two rollers (19), the eccentric shaft (20) being eccentrically arranged with the roller (19), the outer surface of the eccentric shaft (20) being rotatably connected to a push plate (21), a plurality of the push plates (21) being rotatably connected to a cleaning ring (22) at one end close to the cleaning ring (15), and the cleaning ring (22) being slidably connected to the outer surfaces of a plurality of the elastic rods (13).

2. A pipeline filtering device for geothermal heating operation according to claim 1, characterized in that: The adjustment plate (7) is slidably connected to the interior of the filter cartridge (1), and a control rod is slidably connected to the interior of the filter cartridge (1). A reset rod is fixedly connected to the side of the control rod close to the adjustment plate (7), and an end of the reset rod away from the control rod is fixedly connected to the interior of the filter cartridge (1). A plurality of support rods (5) are symmetrically distributed in groups of three with the control rod as the center, and a guide ring is fixedly connected to the interior of the filter cartridge (1).

3. The pipeline filtering device for geothermal heating operation according to claim 1, characterized in that: An eccentric shaft (20) is fixedly connected between the two rollers (19), the eccentric shaft (20) and the roller (19) are eccentrically arranged, the outer surface of the eccentric shaft (20) is rotatably connected to a push plate (21), and one end of a plurality of push plates (21) close to the cleaning ring (15) is rotatably connected to a cleaning ring 2 (22); Wherein, the cleaning ring 2 (22) is slidably connected to the outer surfaces of the plurality of elastic rods (13).

4. The pipeline filtering device for geothermal heating operation according to claim 1, characterized in that: The outer surface of the cleaning ring (15) is provided with a fixing assembly, which includes a plurality of U-shaped frames (23) fixedly connected to the side of the limiting sleeve (11) away from the turntable (8), one end of the U-shaped frame (23) away from the turntable (8) is fixedly connected to the support rod (5), and the U-shaped frame (23) is slidably connected to the outer surface of the cleaning ring (15).

5. A pipeline filtering device for geothermal heating operation according to claim 4, characterized in that: The top of the U-shaped frame (23) is provided with a plurality of through holes. A flexible plate (24) is fixedly connected to the inner wall of the U-shaped frame (23) on one side close to the support rod (5). A rectangular groove (25) is provided on the side wall of the flexible plate (24). A delivery pipe (26) is fixedly connected to the bottom of the U-shaped frame (23). An end of the delivery pipe (26) away from the U-shaped frame (23) is connected to the interior of the cleaning ring (15).

6. A pipeline filtering device for geothermal heating operation according to claim 5, characterized in that: A compression assembly is provided inside the U-shaped frame (23), and the compression assembly includes a compression spring (27) fixedly connected to the inner wall of the rectangular groove (25) on a side close to the delivery pipe (26), and the end of the compression spring (27) away from the delivery pipe (26) is fixedly connected to the U-shaped frame (28).

7. A pipeline filtering device for geothermal heating operation according to claim 6, characterized in that: The U-shaped frame (28) is slidably connected to the inside of the rectangular groove (25), and a movable plate three (29) is fixedly connected to the side of the U-shaped frame (28) close to the conveying pipe (26), and the movable plate three (29) is slidably connected to the top outer wall of the flexible plate (24).

8. The pipeline filtering device for geothermal heating operation according to claim 3, characterized in that: The sliding direction of the cleaning ring 2 (22) is the same as the sliding direction of the cleaning ring (15), and the outer surface of the cleaning ring 2 (22) contacts the inner wall of the filter cartridge (1).

9. The pipeline filtering device for geothermal heating operation according to claim 1, characterized in that: The number of the spray holes (17) is several, and the several spray holes (17) are evenly distributed on the side wall of the cleaning ring (15). The diameter of the spray holes (17) ranges from 0.5 mm to 2 mm.

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