Flow meter with scale removal function

Abstract

The application discloses a flowmeter with scale removal function, which comprises a flowmeter, a water inlet pipe, a water outlet pipe, flanges and a scale removal unit, one end of the water inlet pipe is fixedly installed on one side of the flowmeter, one end of the water outlet pipe is fixedly installed on the other side of the flowmeter, and two flanges are arranged and fixedly installed on the other ends of the water inlet pipe and the water outlet pipe respectively. The scale removal process can be completed without disassembling the flowmeter through the closed design. The scale removal ring and the scale removal plate of the scale removal assembly are driven to remove the scale through the joint action of the water flow and the power assembly, the scale on the electrode is removed without damaging the electrode, especially the scale layer on the electrode end surface is removed, the electrical contact performance of the electrode is restored, the measurement accuracy of the flowmeter is ensured, the equipment downtime is reduced, the continuity of production is ensured, the availability of the equipment and the operation efficiency of the overall system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flow meters, and in particular to a flow meter with a scale removal function. Background Art

[0002] Electromagnetic flowmeters, a fluid measurement device widely used in industry, are highly favored for their high accuracy, lack of pressure drop, and excellent adaptability to conductive liquids. However, when it comes to long-term operation, especially in hard water environments, existing electromagnetic flowmeters have a significant drawback: they lack a scale removal function. This defect not only affects the flowmeter's performance but also causes significant inconvenience and additional costs for users.

[0003] Scale, primarily formed by the deposition of calcium and magnesium ions under specific conditions, is an unavoidable problem in electromagnetic flowmeters. This is particularly true when processing mineral-laden water or industrial wastewater. As water flows through the pipes, these minerals gradually adhere to the inner walls of the flowmeter and its key components. The accumulation of scale can severely impact the electromagnetic flowmeter's internal structure, particularly the electrodes, disrupting normal operation and reducing measurement accuracy.

[0004] As the core sensing element of an electromagnetic flowmeter, the electrode directly contacts the measured medium to sense the generated electromotive force, thereby calculating the flow rate. However, once a layer of scale coats the electrode surface, it significantly impedes the effective transmission of the electrical signal, resulting in distorted data received by the sensor. The presence of scale acts as an insulating material between the electrode and the fluid, further attenuating or even completely eliminating the already weak sensing signal, ultimately affecting the accuracy of the entire measurement system. Furthermore, due to its unevenness and porosity, scale can, in some cases, become a breeding ground for microorganisms, further exacerbating the problem of electrode contamination.

[0005] Scale formation also alters the geometry of the electromagnetic flowmeter's internal flow channels, affecting fluid flow characteristics. Over time, scale accumulates on the tube walls, gradually reducing the effective flow area, increasing fluid resistance, and altering the original flow pattern distribution. This change not only makes it difficult for the flowmeter to maintain its original linear response characteristics but can also increase measurement errors, failing to accurately reflect actual flow conditions. Furthermore, the narrowing of the flow channel can also induce localized turbulence, making it more likely for bubbles or solid particles in the fluid to become trapped within the flowmeter, further deteriorating measurement conditions.

[0006] The accumulation of scale can also shorten the service life of the electromagnetic flowmeter. In order to maintain the measurement accuracy, the user often needs to disassemble and clean the flowmeter regularly, which undoubtedly increases the maintenance cost and workload. Frequent disassembly and assembly operations not only easily damage the seals and other precision components, but also can cause secondary pollution or damage sensitive parts such as electrodes if not properly cleaned. In addition, some scale located in difficult-to-reach positions is difficult to completely remove, which can cause performance degradation and even failure of the device over time.

[0007] Therefore, how to provide a flowmeter with scale removal function is a problem that those skilled in the art need to solve. SUMMARY

[0008] One object of the present application is to provide a flowmeter with scale removal function. The present application is designed to be closed, so that the scale removal process can be completed without disassembling the flowmeter. Through the combined action of the flow of water and the power assembly, the scale removal assembly's scale removal scraper ring and the scale removal plate remove the scale. The elastic movement of the scale removal plate removes the scale on the electrode without damaging the electrode, especially the scale layer on the electrode end face. This effectively restores the electrical contact performance of the electrode, ensures the measurement accuracy of the flowmeter, reduces the downtime of the equipment, ensures the continuity of production, improves the availability of the equipment and the overall system efficiency.

[0009] The present application forms a turbulence structure through the structure of the power assembly, the clutch assembly and the scale removal assembly, improves the flow characteristics of the flowmeter fluid, ensures uniform distribution of the fluid or prevents laminar flow, and improves the measurement accuracy of the flowmeter.

[0010] The present application drives the removed scale by the flow of water towards the scale removal plug plate and the scale removal filter box. The scale is intercepted by the scale removal filter box. The second handle is rotated in reverse. The rotation of the second handle drives the rotation of the second torsion bar. The rotation of the second torsion bar drives the upward movement of the scale removal plug plate. The scale removal filter box is moved to the scale removal groove. The bolts of the scale removal filter box are removed. The scale removal plug plate is separated from the scale removal plug plate. The dirt in the scale removal plug plate is removed.

[0011] According to the flowmeter with scale removal function of the present application, the flowmeter with scale removal function comprises a flowmeter, a water inlet pipe, a water outlet pipe, flanges and a scale removal unit. One end of the water inlet pipe is fixedly installed on one side of the flowmeter. One end of the water outlet pipe is fixedly installed on the other side of the flowmeter. Two flanges are provided, and the two flanges are fixedly installed on the other ends of the water inlet pipe and the water outlet pipe, respectively. The scale removal unit is fixedly installed inside the water inlet pipe and the water outlet pipe.

[0012] The scale cleaning unit includes a power assembly, a clutch assembly, a scale cleaning assembly and a scale return assembly, wherein the power assembly is fixedly mounted inside the water inlet pipe, the clutch assembly is fixedly mounted inside the water inlet pipe, the scale cleaning assembly is fixedly mounted inside the water inlet pipe, and the scale return assembly is fixedly mounted on the water outlet pipe;

[0013] The scale cleaning assembly includes a scale cleaning transfer ring, a scale cleaning plate and a scale cleaning scraper ring, wherein the scale cleaning transfer ring is slidably installed inside the water inlet pipe, one end of the scale cleaning plate is fixedly installed on the scale cleaning transfer ring, and two scale cleaning scraper rings are provided, and the two scale cleaning scrapers are fixedly installed on the other end of the scale cleaning plate.

[0014] Furthermore, a converter is fixedly provided on the top of the flow meter, and electrodes are fixedly provided on both sides of the inner wall of the flow meter.

[0015] Furthermore, the power assembly includes a power frame, a power rod and an impeller, wherein the support rod of the power frame is fixedly mounted on the inner wall of the water inlet pipe, the power rod is rotatably mounted on the power frame, and two impellers are provided, and the two impellers are fixedly mounted on the power rod.

[0016] Furthermore, the clutch assembly includes a rocker, a swing plate, a clutch frame and a rotating rod, wherein one end of the rocker is fixedly mounted on the impeller, one end of the swing plate is rotatably sleeved on the rocker, the support rod of the clutch frame is fixedly mounted on the inner wall of the water inlet pipe, the rotating rod is rotatably mounted on the clutch frame, and the end of the rotating rod is fixedly mounted on the other end of the swing plate.

[0017] Furthermore, the clutch assembly also includes a clutch spring seat, a hexagonal prism, a clutch sprocket and a clutch tension spring, wherein the clutch spring seat is fixedly mounted on the rotating rod, one end of the hexagonal prism is fixedly mounted on the clutch spring seat, the clutch sprocket is slidably sleeved on the other end of the hexagonal prism, one end of the clutch tension spring is fixedly mounted on the clutch spring seat, and the other end of the clutch tension spring is fixedly mounted on the non-tooth end of the clutch sprocket.

[0018] Furthermore, the clutch assembly also includes a first torsion bar, a first handle, a clutch block and a rolling wheel, wherein one end of the first torsion bar is threadedly inserted into the water inlet pipe, the first handle is fixedly mounted on the other end of the first torsion bar, the clutch block is fixedly mounted on one end of the first torsion bar extending to the water inlet pipe, and the rolling wheel is rotatably mounted on both ends of the clutch block.

[0019] Further, the dirt cleaning assembly further comprises a dirt cleaning frame, a dirt cleaning rod, a dirt cleaning gear plate, a first sliding block and a first sliding slot, wherein the dirt cleaning frame is fixedly installed on the inner wall of the water inlet pipe, the dirt cleaning rod is rotatably installed on the dirt cleaning frame, the dirt cleaning rod is screwedly inserted into the center of the dirt cleaning moving ring, the non-tooth end of the dirt cleaning gear plate is connected with the dirt cleaning rod, the dirt cleaning gear plate is matched with the clutch gear plate in size, the first sliding block is fixedly installed on the outer wall of the dirt cleaning moving ring, and the first sliding slot is formed in the inner wall of the water inlet pipe.

[0020] Further, the dirt cleaning assembly further comprises a movable frame, a movable plate, a second sliding block, a second sliding slot, a pressing spring and a dirt scraping plate, wherein the open end of the movable frame is fixedly installed on the two sides of the dirt cleaning scraping ring, the movable plate is slidably installed in the movable frame, the second sliding block is fixedly installed on the two sides of the movable plate, the second sliding slot is formed in the inner wall of the movable frame, the second sliding block is slidably installed in the second sliding slot, one end of the pressing spring is fixedly installed on the inner top of the movable frame, the other end of the pressing spring is fixedly installed on the movable plate, and the dirt scraping plate is fixedly installed on the side of the movable plate away from the pressing spring.

[0021] Further, the dirt cleaning assembly further comprises a first dirt cleaning spring seat, a dirt cleaning tension spring and a second dirt cleaning spring seat, wherein the base of the first dirt cleaning spring seat is fixedly installed on the dirt cleaning moving ring, one end of the dirt cleaning tension spring is fixedly installed on the first dirt cleaning spring seat, the base of the second dirt cleaning spring seat is fixedly installed on the inner wall of the water inlet pipe, and the other end of the dirt cleaning tension spring is fixedly installed on the second dirt cleaning spring seat.

[0022] Further, the dirt cleaning assembly further comprises a dirt cleaning assembly further comprises a dirt cleaning box, a third sliding slot, a dirt discharging groove, a dirt discharging plug plate, a mounting slot, a third sliding block, a dirt discharging filter box, a second torsion rod and a second handle, wherein the dirt cleaning box is fixedly installed on the outer wall of the water outlet pipe, the third sliding slot is formed on the two sides of the inner part of the dirt cleaning box, the dirt discharging groove is formed on the dirt cleaning box, the dirt discharging plug plate is vertically and slidably installed in the dirt cleaning box, the mounting slot is formed on the dirt discharging plug plate, the third sliding block is fixedly installed on the two sides of the dirt discharging plug plate, the dirt discharging filter box is boltedly installed in the mounting slot, the bottom of the second torsion rod is rotatably inserted into the inner bottom of the third sliding slot, the bottom of the second torsion rod is screwedly penetrated through the third sliding block, and the second handle is fixedly installed on the top of the second torsion rod.

[0023] The beneficial effects of the present application are as follows:

[0024] The present invention adopts a closed design, so that the scale removal process can be completed without disassembling the flow meter; the flow of water and the power component work together to drive the scale scraper ring and the scraper plate of the scale cleaning component to remove scale, and the elastic activity of the scraper plate removes scale on the electrode without damaging the electrode, especially the scraping of the scale layer on the end surface of the electrode, effectively restoring the electrical contact performance of the electrode, ensuring the measurement accuracy of the flow meter, while reducing equipment downtime, ensuring production continuity, and improving equipment availability and the operating efficiency of the overall system.

[0025] The present invention forms a flow disturbance structure through the structural arrangement of the power component, the clutch component and the scale cleaning component, improves the flow characteristics of the flow meter fluid, ensures uniform distribution of the fluid or prevents laminar flow, thereby improving the measurement accuracy of the flow meter.

[0026] The present invention drives the scraped scale to flow toward the scale return plug plate and the scale return filter box through the flow of water, and the scale return filter box intercepts the scale, and the second handle is rotated in the opposite direction. The rotation of the second handle drives the rotation of the second torsion bar, and the rotation of the second torsion bar drives the scale return plug plate to move upward until the scale return filter box moves to the scale discharge groove. The bolts of the scale return filter box are removed, the scale return plug plate is separated from the scale return plug plate, and the dirt in the scale return plug plate is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of a flow meter with scale removal function proposed by the present invention;

[0029] Figure 2 A cross-sectional view of a water inlet pipe of a flow meter with a scale removal function proposed by the present invention;

[0030] Figure 3 This is a schematic structural diagram of an impeller of a flow meter with a scale removal function proposed by the present invention;

[0031] Figure 4 This is a structural schematic diagram of a pendulum plate of a flow meter with a scale removal function proposed by the present invention;

[0032] Figure 5 The present invention proposes a flow meter with a scale removal function Figure 4 A magnified view of point A;

[0033] Figure 6 This is a structural schematic diagram of a scale removal ring of a flow meter with a scale removal function proposed by the present invention;

[0034] Figure 7 The present invention proposes a flow meter with a scale removal function Figure 6 Enlarged view of point B;

[0035] Figure 8 This is a schematic structural diagram of a second torsion bar of a flow meter with a scale removal function proposed by the present invention;

[0036] Figure 9 This is a structural schematic diagram of a scale return filter box of a flow meter with scale removal function proposed by the present invention.

[0037] In the figure: 1. Flow meter; 1.1. Converter; 1.2. Electrode; 2. Water inlet pipe; 3. Water outlet pipe; 4. Flange; 5. Power assembly; 5.1. Power frame; 5.2. Power rod; 5.3. Impeller; 6. Clutch assembly; 6.1. Rocker; 6.2. Swing plate; 6.3. Clutch frame; 6.4. Rotating rod; 6.5. Clutch spring seat; 6.6. Hexagonal prism; 6.7. Clutch gear plate; 6.8. Clutch extension spring; 6.9. First torsion bar; 6.10. First handle; 6.11. Clutch block; 6.12. Rolling wheel; 7. Cleaning assembly; 7.1. Cleaning transfer ring; 7.2. Cleaning plate; 7.3. Cleaning scraper ring; 7.4 , scale cleaning rack; 7.5, scale cleaning rod; 7.6, scale cleaning toothed disc; 7.7, first slider; 7.8, first slide; 7.9, movable frame; 7.10, movable plate; 7.11, second slider; 7.12, second slide; 7.13, pressing spring; 7.14, scraper plate; 7.15, first scale cleaning spring seat; 7.16, scale cleaning stretching spring; 7.17, second scale cleaning spring seat; 8, scale return assembly; 8.1, scale return box; 8.2, third slide; 8.3, scale discharge trough; 8.4, scale return plug plate; 8.5, mounting slot; 8.6, third slider; 8.7, scale return filter box; 8.8, second torsion bar; 8.9, second handle. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0039] Please refer to Figures 1 to 9The present invention provides a flow meter with a scale removal function, comprising a flow meter 1, a water inlet pipe 2, a water outlet pipe 3, a flange 4 and a scale removal unit, wherein one end of the water inlet pipe 2 is fixedly mounted on one side of the flow meter 1, and one end of the water outlet pipe 3 is fixedly mounted on the other side of the flow meter 1. Two flanges 4 are provided, and the two flanges 4 are fixedly mounted on the other ends of the water inlet pipe 2 and the water outlet pipe 3 respectively, and the scale removal unit is fixedly mounted inside the water inlet pipe 2 and the water outlet pipe 3; the scale removal unit comprises a power assembly 5, a clutch assembly 6, a scale removal assembly 7 and a scale return assembly 8, wherein the power assembly 5 is fixedly mounted inside the water inlet pipe 2, the clutch assembly 6 is fixedly mounted inside the water inlet pipe 2, the scale removal assembly 7 is fixedly mounted inside the water inlet pipe 2, and the scale return assembly 8 is fixedly mounted on the outlet pipe 3. A converter 1.1 is fixedly mounted on the top of the flow meter 1, and electrodes 1.2 are fixedly mounted on both sides of the inner wall of the flow meter 1, and the edges of the electrodes 1.2 are chamfered. The flow meter 1 adopts an existing electromagnetic flowmeter.

[0040] Specifically, the power assembly 5 includes a power frame 5.1, a power rod 5.2 and an impeller 5.3, wherein the support rod of the power frame 5.1 is fixedly mounted on the inner wall of the water inlet pipe 2, the power rod 5.2 is rotatably mounted on the power frame 5.1, and two impellers 5.3 are provided, and the two impellers 5.3 are fixedly mounted on the power rod 5.2.

[0041] More specifically, the clutch assembly 6 includes a rocker 6.1, a swing plate 6.2, a clutch frame 6.3 and a rotating rod 6.4, wherein one end of the rocker 6.1 is fixedly mounted on the impeller 5.3, one end of the swing plate 6.2 is rotatably sleeved on the rocker 6.1, a support rod of the clutch frame 6.3 is fixedly mounted on the inner wall of the water inlet pipe 2, and the rotating rod 6.4 is rotatably mounted on the clutch frame 6.3, and the end of the rotating rod 6.4 is fixedly mounted on the other end of the swing plate 6.2; the clutch assembly 6 also includes a clutch spring seat 6.5, a hexagonal prism 6.6, a clutch toothed disc 6.7 and a clutch tension spring 6.8, wherein the clutch spring seat 6.5 is fixedly mounted on the rotating rod 6.4, one end of the hexagonal prism 6.6 is fixedly mounted on the clutch spring seat 6.5, and the clutch toothed disc 6.7 is slidably sleeved on the hexagonal prism 6 .6, one end of the clutch tension spring 6.8 is fixedly mounted on the clutch spring seat 6.5, and the other end of the clutch tension spring 6.8 is fixedly mounted on the non-tooth end of the clutch sprocket 6.7; the clutch assembly 6 also includes a first torsion bar 6.9, a first handle 6.10, a clutch block 6.11 and a rolling wheel 6.12, wherein one end of the first torsion bar 6.9 is threadedly inserted into the water inlet pipe 2, the first handle 6.10 is fixedly mounted on the other end of the first torsion bar 6.9, the clutch block 6.11 is fixedly mounted on the end of the first torsion bar 6.9 extending to the water inlet pipe 2, and the rolling wheel 6.12 is rotatably mounted on both ends of the clutch block 6.11. The rolling wheel 6.12 can be replaced by a ball, and the rolling wheel 6.12 is convenient for rolling on the rotating clutch sprocket 6.7.

[0042] More specifically, the scale cleaning assembly 7 includes a scale cleaning transfer ring 7.1, a scale cleaning plate 7.2 and a scale cleaning scraper ring 7.3, wherein the scale cleaning transfer ring 7.1 is slidably mounted inside the water inlet pipe 2, one end of the scale cleaning plate 7.2 is fixedly mounted on the scale cleaning transfer ring 7.1, and two scale cleaning scraper rings 7.3 are provided, and both of the two scale cleaning scraper rings 7.3 are fixedly mounted on the other end of the scale cleaning plate 7.2. The scale cleaning assembly 7 also includes a scale cleaning frame 7.4, a scale cleaning rod 7.5, a scale cleaning toothed disc 7.6, a first slider 7.7 and a first chute 7.8, wherein The scale cleaning frame 7.4 is fixedly mounted on the inner wall of the water inlet pipe 2, the scale cleaning rod 7.5 is rotatably mounted on the scale cleaning frame 7.4, the scale cleaning rod 7.5 is threadedly inserted into the center position of the scale cleaning transfer ring 7.1, and the scale cleaning toothed disc 7.6 is on the non-tooth end of the scale cleaning rod 7.5. The scale cleaning toothed disc 7.6 matches the size of the clutch toothed disc 6.7. The first slider 7.7 is fixedly mounted on the outer wall of the scale cleaning transfer ring 7.1, the first slide groove 7.8 is opened on the inner wall of the water inlet pipe 2, and the first slider 7.7 is slidably mounted in the first slide groove 7.8.

[0043] The dirt cleaning assembly 7 also includes a movable frame 7.9, a movable plate 7.10, a second slider 7.11, a second chute 7.12, a pressing spring 7.13 and a scraping plate 7.14, wherein the open end of the movable frame 7.9 is fixedly mounted on both sides of the dirt cleaning scraper 7.3, the movable plate 7.10 is slidably mounted in the movable frame 7.9, the second slider 7.11 is fixedly mounted on both sides of the movable plate 7.10, the second chute 7.12 is opened on the inner walls of both sides of the movable frame 7.9, the second slider 7.11 is slidably mounted in the second chute 7.12, one end of the pressing spring 7.13 is fixedly mounted on the inner top of the movable frame 7.9, the other end of the pressing spring 7.13 is fixedly mounted on the movable plate 7.10, and the scraping plate 7.14 is fixedly mounted. It is installed on the side of the movable plate 7.10 away from the pressing spring 7.13, the front and rear ends of the scraper plate 7.14 are chamfered, and the chamfer of the scraper plate 7.14 matches the chamfer of the electrode 1.2, and the scraper plate 7.14 is made of rubber; the scale cleaning component 7 also includes a first scale cleaning spring seat 7.15, a scale cleaning tension spring 7.16 and a second scale cleaning spring seat 7.17, wherein the base of the first scale cleaning spring seat 7.15 is fixedly mounted on the scale cleaning transfer ring 7.1, one end of the scale cleaning tension spring 7.16 is fixedly mounted on the first scale cleaning spring seat 7.15, the base of the second scale cleaning spring seat 7.17 is fixedly mounted on the inner wall of the water inlet pipe 2, and the other end of the scale cleaning tension spring 7.16 is fixedly mounted on the second scale cleaning spring seat 7.17.

[0044] More specifically, the scale return assembly 8 includes a scale return box 8.1, a third chute 8.2, a scale discharge chute 8.3, a scale return plug plate 8.4, a mounting groove 8.5, a third slider 8.6, a scale return filter box 8.7, a second torsion bar 8.8 and a second handle 8.9, wherein the scale return box 8.1 is fixedly mounted on the outer wall of the outlet pipe 3, the third chute 8.2 is provided on both sides of the interior of the scale return box 8.1, the scale discharge chute 8.3 is provided on the scale return box 8.1, the scale return plug plate 8.4 is vertically slidably mounted in the scale return box 8.1, the mounting groove 8.5 is provided on the scale return plug plate 8.4, the third slider 8.6 is fixedly installed on both sides of the back-dirt plug plate 8.4, the back-dirt filter box 8.7 is bolted into the mounting groove 8.5, the bottom of the second torsion bar 8.8 is rotatably inserted into the inner bottom of the third slide 8.2, the bottom thread of the second torsion bar 8.8 passes through the third slider 8.6, and the second handle 8.9 is fixedly installed on the top of the second torsion bar 8.8. The outer surface of the back-dirt plug plate 8.4 and the third slider 8.6 is covered with an elastic rubber layer to act as a seal, thereby preventing water leakage in the gap between the back-dirt plug plate 8.4 and the third slider 8.6 and the back-dirt box 8.1 and the third slide 8.2.

[0045] Furthermore, the flanges 4 of the water inlet pipe 2 and the water outlet pipe 3 are connected to the external pipeline, the water flow direction is the flow direction from the water inlet pipe 2 to the water outlet pipe 3, and the length of the water inlet pipe 2 is greater than the water outlet pipe 3 to avoid reverse installation. The flowmeter 1 is an electromagnetic flowmeter.

[0046] When the flow meter 1 is used for a long time, a scale layer will inevitably appear in the internal channel of the flow meter 1. This scale layer covers the outer surface of the electrode 1.2, affecting the electrical contact performance of the electrode 1.2, thereby causing inaccurate flow measurement; the insulating layer formed by the scale will increase the contact impedance between the electrode 1.2 and the liquid, hinder signal transmission, and ultimately affect the measurement accuracy of the flow meter 1.

[0047] Therefore, it is necessary to clean the internal channel of the flow meter 1 and the outer surface of the electrode 1.2 to remove the scale layer.

[0048] The staff twists the second handle 8.9 with both hands at the same time. The rotation of the second handle 8.9 drives the rotation of the second torsion bar 8.8. The rotation of the second torsion bar 8.8 drives the scale return plug plate 8.4 downward into the water outlet pipe 3. The scale return filter box 8.7 of the scale return plug plate 8.4 intercepts scale impurities.

[0049] The rapid flow of water drives the rotation of the impeller 5.3. The rotation of the impeller 5.3 drives the rotation of the power rod 5.2. The rotation of the impeller 5.3 drives the rocker 6.1 to rotate around the axis of the power rod 5.2. The rotation of the rocker 6.1 drives the pendulum plate 6.2 to perform circular motion. The pendulum plate 6.2 drives the rotation of the rotating rod 6.4. The rotation of the rotating rod 6.4 drives the rotation of the clutch spring seat 6.5 and the hexagonal prism 6.6. The rotation of the hexagonal prism 6.6 drives the rotation of the clutch gear plate 6.7.

[0050] The staff twists the first handle 6.10, and the rotation of the first handle 6.10 drives the rotation of the first torsion bar 6.9, and the rotation of the first torsion bar 6.9 drives the rotation of the clutch block 6.11. The rotation of the clutch block 6.11 pushes the clutch sprocket 6.7 to slide on the hexagonal prism 6.6, and the clutch sprocket 6.7 moves toward the dirt cleaning sprocket 7.6 until the clutch sprocket 6.7 and the dirt cleaning sprocket 7.6 are opposite. The clutch sprocket 6.7 stretches the clutch tension spring 6.8, and the rotating clutch sprocket 6.7 drives the dirt cleaning sprocket 7.6 to rotate.

[0051] The rotation of the cleaning toothed disc 7.6 drives the rotation of the cleaning rod 7.5, and the cleaning rod 7.5 rotates on the cleaning frame 7.4. The cleaning rod 7.5 and the cleaning shift ring 7.1 are threaded together. The rotation of the cleaning rod 7.5 drives the cleaning shift ring 7.1 to move along the length direction of the cleaning rod 7.5. The cleaning tension spring 7.16 is stretched, and the cleaning shift ring 7.1 moves toward the internal channel of the flow meter 1. The first slider 7.7 of the cleaning shift ring 7.1 slides along the first slide groove 7.8.

[0052] The movement of the cleaning ring 7.1 drives the cleaning plate 7.2 and the cleaning scraper ring 7.3 to move. The cleaning scraper ring 7.3 enters the internal channel of the flow meter 1 and scrapes out the scale in the internal channel of the flow meter 1. The edge of the front ring of the cleaning scraper ring 7.3 and the scraping plate 7.14 scrape off the scale layer.

[0053] When the scraper ring 7.3 encounters the electrode 1.2, the chamfer of the scraper plate 7.14 is tangent to the chamfer of the electrode 1.2, the scraper plate 7.14 elastically retracts the movable frame 7.9, the pressing spring 7.13 is compressed, the pressing spring 7.13 presses the movable plate 7.10 and the scraper plate 7.14 tightly against the end face of the electrode 1.2, and when the scraper plate 7.14 passes through the electrode 1.2, the end face of the electrode 1.2 is scraped off the scale layer by the scraper plate 7.14.

[0054] Twist the first handle 6.10 in the opposite direction, the clutch block 6.11 no longer presses against the clutch gear disc 6.7, and the clutch tension spring 6.8 pulls back the clutch gear disc 6.7 to disengage it from the docking with the cleaning gear disc 7.6. After the cleaning gear disc 7.6 stops rotating, the cleaning tension spring 7.16 retracts, and the cleaning tension spring 7.16 pulls the cleaning transfer ring 7.1 away from the flow meter 1, resetting the cleaning transfer ring 7.1, the cleaning plate 7.2 and the cleaning scraper ring 7.3. Twist the first handle 6.10 twice repeatedly to make the cleaning scraper ring 7.3 remove scale back and forth.

[0055] The flow of water drives the scraped scale to flow toward the scale return plug plate 8.4 and the scale return filter box 8.7, where the scale is intercepted by the scale return filter box 8.7. The second handle 8.9 is rotated in the opposite direction. The rotation of the second handle 8.9 drives the rotation of the second torsion bar 8.8. The rotation of the second torsion bar 8.8 drives the scale return plug plate 8.4 to move upward until the scale return filter box 8.7 moves to the scale discharge groove 8.3. The bolts of the scale return filter box 8.7 are removed, the scale return plug plate 8.4 is separated from the scale return plug plate 8.4, and the dirt in the scale return plug plate 8.4 is removed.

[0056] Through the closed design, the scale removal process can be completed without disassembling the flow meter 1; the flow of water and the power component 5 work together to drive the scale scraper ring 7.3 and the scraper plate 7.14 of the scale removal component 7 to remove scale. The elastic activity of the scraper plate 7.14 removes scale on the electrode 1.2 without damaging the electrode 1.2, especially the scale layer on the end face of the electrode 1.2, effectively restoring the electrical contact performance of the electrode, ensuring the measurement accuracy of the flow meter 1, and at the same time reducing equipment downtime, ensuring production continuity, and improving equipment availability and the operating efficiency of the overall system.

[0057] The structural arrangement of the power assembly 5, the clutch assembly 6 and the descaling assembly 7 forms a flow disturbance structure, which improves the flow characteristics of the fluid in the flow meter 1, ensures uniform distribution of the fluid or prevents laminar flow, thereby improving the measurement accuracy of the flow meter.

[0058] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A flow meter with scale removal function, characterized in that: The device comprises a flow meter (1), a water inlet pipe (2), a water outlet pipe (3), a flange (4) and a descaling unit, wherein one end of the water inlet pipe (2) is fixedly mounted on one side of the flow meter (1), one end of the water outlet pipe (3) is fixedly mounted on the other side of the flow meter (1), two flanges (4) are provided, and the two flanges (4) are fixedly mounted on the other ends of the water inlet pipe (2) and the water outlet pipe (3), respectively, and the descaling unit is fixedly mounted inside the water inlet pipe (2) and the water outlet pipe (3); The scale cleaning unit comprises a power assembly (5), a clutch assembly (6), a scale cleaning assembly (7) and a scale return assembly (8), wherein the power assembly (5) is fixedly mounted inside the water inlet pipe (2), the clutch assembly (6) is fixedly mounted inside the water inlet pipe (2), the scale cleaning assembly (7) is fixedly mounted inside the water inlet pipe (2), and the scale return assembly (8) is fixedly mounted on the water outlet pipe (3); The scale cleaning assembly (7) comprises a scale cleaning transfer ring (7.1), a scale cleaning plate (7.2) and a scale cleaning scraper ring (7.3), wherein the scale cleaning transfer ring (7.1) is slidably mounted inside the water inlet pipe (2), one end of the scale cleaning plate (7.2) is fixedly mounted on the scale cleaning transfer ring (7.1), and two scale cleaning scraper rings (7.3) are provided, and both of the scale cleaning scraper rings (7.3) are fixedly mounted on the other end of the scale cleaning plate (7.2); The clutch assembly (6) comprises a rocker (6.1), a swing plate (6.2), a clutch frame (6.3) and a rotating rod (6.4), wherein one end of the rocker (6.1) is fixedly mounted on the impeller (5.3), one end of the swing plate (6.2) is rotatably sleeved on the rocker (6.1), a support rod of the clutch frame (6.3) is fixedly mounted on the inner wall of the water inlet pipe (2), the rotating rod (6.4) is rotatably mounted on the clutch frame (6.3), and the end of the rotating rod (6.4) is fixedly mounted on the other end of the swing plate (6.2); The clutch assembly (6) further comprises a clutch spring seat (6.5), a hexagonal prism (6.6), a clutch toothed disc (6.7) and a clutch extension spring (6.8), wherein the clutch spring seat (6.5) is fixedly mounted on the rotating rod (6.4), one end of the hexagonal prism (6.6) is fixedly mounted on the clutch spring seat (6.5), the clutch toothed disc (6.7) is slidably sleeved on the other end of the hexagonal prism (6.6), one end of the clutch extension spring (6.8) is fixedly mounted on the clutch spring seat (6.5), and the other end of the clutch extension spring (6.8) is fixedly mounted on the non-tooth end of the clutch toothed disc (6.7); The clutch assembly (6) further comprises a first torsion bar (6.9), a first handle (6.10), a clutch block (6.11) and a rolling wheel (6.12), wherein one end of the first torsion bar (6.9) is threadedly plugged into the water inlet pipe (2), the first handle (6.10) is fixedly mounted on the other end of the first torsion bar (6.9), the clutch block (6.11) is fixedly mounted on one end of the first torsion bar (6.9) extending to the water inlet pipe (2), and the rolling wheel (6.12) is rotatably mounted on both ends of the clutch block (6.11).

2. A flow meter with scale removal function according to claim 1, characterized in that: A converter (1.1) is fixedly arranged on the top of the flow meter (1), and electrodes (1.2) are fixedly arranged on both sides of the inner wall of the flow meter (1).

3. The flow meter with scale removal function according to claim 1, characterized in that: The power assembly (5) comprises a power frame (5.1), a power rod (5.2) and an impeller (5.3), wherein the support rod of the power frame (5.1) is fixedly mounted on the inner wall of the water inlet pipe (2), the power rod (5.2) is rotatably mounted on the power frame (5.1), and two impellers (5.3) are provided, and the two impellers (5.3) are fixedly mounted on the power rod (5.2).

4. The flow meter with scale removal function according to claim 1, characterized in that: The scale cleaning assembly (7) further comprises a scale cleaning frame (7.4), a scale cleaning rod (7.5), a scale cleaning toothed disc (7.6), a first slider (7.7) and a first chute (7.8), wherein the scale cleaning frame (7.4) is fixedly mounted on the inner wall of the water inlet pipe (2), the scale cleaning rod (7.5) is rotatably mounted on the scale cleaning frame (7.4), the scale cleaning rod (7.5) is threadedly plugged into the center of the scale cleaning transfer ring (7.1), the scale cleaning toothed disc (7.6) is on the non-toothed end of the scale cleaning rod (7.5), the size of the scale cleaning toothed disc (7.6) matches that of the clutch toothed disc (6.7), the first slider (7.7) is fixedly mounted on the outer wall of the scale cleaning transfer ring (7.1), the first chute (7.8) is opened on the inner wall of the water inlet pipe (2), and the first slider (7.7) is slidably mounted in the first chute (7.8).

5. The flow meter with scale removal function according to claim 4, characterized in that: The dirt cleaning assembly (7) further comprises a movable frame (7.9), a movable plate (7.10), a second slider (7.11), a second chute (7.12), a pressing spring (7.13) and a dirt scraping plate (7.14), wherein the open end of the movable frame (7.9) is fixedly mounted on both sides of the dirt cleaning scraping ring (7.3), the movable plate (7.10) is slidably mounted in the movable frame (7.9), and the second slider (7.11) is fixedly mounted on both sides of the movable plate (7.10). The second chute (7.12) is formed on the inner walls of both sides of the movable frame (7.9); the second slider (7.11) is slidably mounted in the second chute (7.12); one end of the pressing spring (7.13) is fixedly mounted on the inner top of the movable frame (7.9); the other end of the pressing spring (7.13) is fixedly mounted on the movable plate (7.10); and the scraping plate (7.14) is fixedly mounted on a side of the movable plate (7.10) away from the pressing spring (7.13).

6. The flow meter with scale removal function according to claim 5, characterized in that: The scale cleaning assembly (7) further comprises a first scale cleaning spring seat (7.15), a scale cleaning tension spring (7.16) and a second scale cleaning spring seat (7.17), wherein the base of the first scale cleaning spring seat (7.15) is fixedly mounted on the scale cleaning transfer ring (7.1), one end of the scale cleaning tension spring (7.16) is fixedly mounted on the first scale cleaning spring seat (7.15), the base of the second scale cleaning spring seat (7.17) is fixedly mounted on the inner wall of the water inlet pipe (2), and the other end of the scale cleaning tension spring (7.16) is fixedly mounted on the second scale cleaning spring seat (7.17).

7. The flow meter with scale removal function according to claim 1, characterized in that: The scale return assembly (8) comprises a scale return box (8.1), a third chute (8.2), a scale discharge chute (8.3), a scale return plug plate (8.4), a mounting slot (8.5), a third slider (8.6), a scale return filter box (8.7), a second torsion bar (8.8) and a second handle (8.9), wherein the scale return box (8.1) is fixedly mounted on the outer wall of the water outlet pipe (3), the third chute (8.2) is provided on both sides of the interior of the scale return box (8.1), the scale discharge chute (8.3) is provided on the scale return box (8.1), the scale return plug plate (8.4) is provided on the back of the scale return box (8.1), and the back of the scale return plug plate (8.6) is provided on the back of the scale return box (8.1). 4) is vertically slidably installed in the dirt return box (8.1), the installation groove (8.5) is opened on the dirt return plug plate (8.4), the third slider (8.6) is fixedly installed on both sides of the dirt return plug plate (8.4), the dirt return filter box (8.7) is bolted in the installation groove (8.5), the bottom of the second torsion bar (8.8) is rotatably inserted into the inner bottom of the third slide groove (8.2), the bottom thread of the second torsion bar (8.8) passes through the third slider (8.6), and the second handle (8.9) is fixedly installed on the top of the second torsion bar (8.8).

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