Flowmeter with scale removing function

Abstract

The flowmeter comprises a flowmeter body, a water inlet pipe, a water outlet pipe, two flanges and a scale removing unit, one end of the water inlet pipe is fixedly installed on one side of the flowmeter body, one end of the water outlet pipe is fixedly installed on the other side of the flowmeter body, and the scale removing unit is fixedly installed on the other side of the flowmeter body. The two flanges are fixedly installed at the other end of the water inlet pipe and the other end of the water outlet pipe respectively. By means of the closed design, water scale can be removed under the condition that the flow meter is not disassembled in the water scale removing process; through the combined action of flowing of water flow and the power assembly, a scale removing scraping ring and a dirt scraping plate of the scale removing assembly are driven to remove scale, the dirt scraping plate removes the scale on an electrode on the premise that the electrode is not damaged, particularly, the electric contact performance of the electrode is recovered through scraping of a scale layer on the end face of the electrode, and the measuring precision of the flowmeter is ensured; the downtime of the equipment is reduced, the production continuity is ensured, and the availability of the equipment and the operation efficiency of the whole 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] As a fluid measurement device widely used in the industrial field, electromagnetic flowmeters are favored for their high accuracy, no pressure loss, and good adaptability to conductive liquids. However, when it comes to long-term operation, especially in hard water environments, existing electromagnetic flowmeters have a significant disadvantage - they do not have a scale removal function. This defect not only affects the working performance of the flowmeter, but also brings a lot of inconvenience and additional costs to users.

[0003] Scale, mainly formed by the deposition of calcium and magnesium ions under specific conditions, is one of the inevitable problems of electromagnetic flowmeters during use. Especially when dealing with water sources or industrial wastewater containing minerals, as the water flows through the pipe, these minerals gradually adhere to the inner wall of the flowmeter and its key components. For electromagnetic flowmeters, the accumulation of scale will have a serious impact on its internal structure, especially the electrodes, thereby interfering with normal operation and reducing measurement accuracy.

[0004] As the core sensing element of the electromagnetic flowmeter, the electrode is in direct contact with the measured medium to sense the induced electromotive force, thereby calculating the flow rate. However, once a layer of scale covers the surface of the electrode, this will greatly hinder the effective transmission of the electrical signal, resulting in distortion of the data received by the sensor. The presence of scale is equivalent to adding a layer of insulating material between the electrode and the fluid, causing the originally weak induction signal to further attenuate or even disappear completely, ultimately affecting the accuracy of the entire measurement system. Not only that, due to the unevenness and porosity of scale, in some cases it may also become a breeding ground for microorganisms, further exacerbating the problem of electrode contamination.

[0005] The formation of scale will also change the geometry of the flow channel inside the electromagnetic flowmeter and affect the fluid flow characteristics. As time goes by, the scale on the pipe wall accumulates more and more, gradually reducing the effective flow area, increasing the fluid resistance, and changing the original flow distribution. This change not only makes it difficult for the flowmeter to maintain its original linear response characteristics, but may also lead to increased measurement errors and fail to truly reflect the actual flow situation. At the same time, due to the narrowing of the flow channel, local turbulence may also occur, making it easier for bubbles or solid particles in the fluid to remain inside the flowmeter, further deteriorating the measurement conditions.

[0006] The accumulation of scale may also shorten the service life of the electromagnetic flowmeter. In order to maintain measurement accuracy, users often need to disassemble and clean the flowmeter regularly, but this undoubtedly increases maintenance costs and workload. Frequent disassembly and assembly operations are not only easy to damage seals and other precision components, but also may cause secondary contamination or damage sensitive parts such as electrodes if not cleaned properly. In addition, some scale located in difficult-to-reach places is difficult to completely remove, which will cause equipment performance to decline and even fail over time.

[0007] Therefore, how to provide a flow meter with a scale removal function is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0008] One object of the present invention is to provide a flow meter with a scale removal function. The present invention adopts a closed design so that the scale removal process can be completed without disassembling the flow meter. The scale removal ring and the dirt scraping plate of the scale removal component are driven to remove the scale through the combined action of the water flow and the power component. The elastic activity of the dirt scraping plate removes the scale on the electrode without damaging the electrode, especially the scraping of the scale layer on the electrode end surface, 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.

[0009] The present invention forms a flow disturbance structure through the structural arrangement of a power component, a clutch component and a descaling 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.

[0010] The present invention drives the scraped scale to flow toward the back-scale plug plate and the back-scale filter box through the flow of water flow, and the back-scale 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 back-scale plug plate to move upward until the back-scale filter box moves to the scale discharge groove, the bolts of the back-scale filter box are removed, the back-scale plug plate is separated from the back-scale plug plate, and the dirt in the back-scale plug plate is removed.

[0011] A flow meter with a scale removal function according to an embodiment of the present invention comprises a flow meter, a water inlet pipe, a water outlet pipe, a flange and a scale removal unit, wherein one end of the water inlet pipe is fixedly mounted on one side of the flow meter, one end of the water outlet pipe is fixedly mounted on the other side of the flow meter, two flanges are provided, and the two flanges are fixedly mounted on the other ends of the water inlet pipe and the water outlet pipe, respectively, and the scale removal unit is fixedly mounted inside the water inlet pipe and the water outlet pipe; The descaling unit comprises a power assembly, a clutch assembly, a descaling assembly and a descaling 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 descaling assembly is fixedly mounted inside the water inlet pipe, and the descaling assembly is fixedly mounted on the water outlet pipe; 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.

[0012] Furthermore, a converter is fixedly arranged on the top of the flow meter, and electrodes are fixedly arranged on both sides of the inner wall of the flow meter.

[0013] 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.

[0014] 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, a 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 an end of the rotating rod is fixedly mounted on the other end of the swing plate.

[0015] Furthermore, the clutch assembly also includes a clutch spring seat, a hexagonal prism, a clutch toothed disc 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 toothed disc 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 toothed disc.

[0016] 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.

[0017] Furthermore, the scale cleaning assembly also includes a scale cleaning frame, a scale cleaning rod, a scale cleaning toothed disc, a first slider and a first slide groove, wherein the scale cleaning frame is fixedly mounted on the inner wall of the water inlet pipe, the scale cleaning rod is rotatably mounted on the scale cleaning frame, the scale cleaning rod is threadedly inserted into the center position of the scale cleaning transfer ring, the scale cleaning rod at the non-tooth end of the scale cleaning toothed disc, the scale cleaning toothed disc matches the size of the clutch toothed disc, the first slider is fixedly mounted on the outer wall of the scale cleaning transfer ring, the first slide groove is opened on the inner wall of the water inlet pipe, and the first slider is slidably mounted in the first slide groove.

[0018] Furthermore, the dirt cleaning component also includes a movable frame, a movable plate, a second slider, a second slide groove, a clamping spring and a scraping plate, wherein the open end of the movable frame is fixedly mounted on both sides of the dirt cleaning scraper ring, the movable plate is slidably mounted in the movable frame, the second slider is fixedly mounted on both sides of the movable plate, the second slide groove is opened on the inner walls on both sides of the movable frame, the second slider is slidably mounted in the second slide groove, one end of the clamping spring is fixedly mounted on the inner top of the movable frame, the other end of the clamping spring is fixedly mounted on the movable plate, and the scraping plate is fixedly mounted on the side of the movable plate away from the clamping spring.

[0019] Furthermore, the scale cleaning component also includes a first scale cleaning spring seat, a scale cleaning tension spring and a second scale cleaning spring seat, wherein the base of the first scale cleaning spring seat is fixedly mounted on the scale cleaning transfer ring, one end of the scale cleaning tension spring is fixedly mounted on the first scale cleaning spring seat, the base of the second scale cleaning spring seat is fixedly mounted on the inner wall of the water inlet pipe, and the other end of the scale cleaning tension spring is fixedly mounted on the second scale cleaning spring seat.

[0020] Furthermore, the backscale assembly includes a backscale box, a third slide, a scale discharge groove, a backscale plug plate, a mounting groove, a third slider, a backscale filter box, a second torsion bar and a second handle, wherein the backscale box is fixedly installed on the outer wall of the water outlet pipe, the third slide is opened on both sides of the inside of the backscale box, the scale discharge groove is opened on the backscale box, the backscale plug plate is vertically slidably installed in the backscale box, the mounting groove is opened on the backscale plug plate, the third slider is fixedly installed on both sides of the backscale plug plate, the backscale filter box bolt is installed in the mounting groove, the bottom of the second torsion bar is rotatably inserted into the inner bottom of the third slide, the bottom thread of the second torsion bar passes through the third slider, and the second handle is fixedly installed on the top of the second torsion bar.

[0021] The beneficial effects of the present invention are: The present invention adopts a closed design, so that the scale removal process can be completed without disassembling the flow meter; the scale scraper ring and the dirt scraper plate of the scale cleaning component are driven to remove scale through the combined action of the water flow and the power component; the elastic activity of the dirt scraper plate removes the 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.

[0022] The present invention forms a flow disturbance structure through the structural arrangement of a power component, a clutch component and a descaling 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.

[0023] The present invention drives the scraped scale to flow toward the back-scale plug plate and the back-scale filter box through the flow of water flow, and the back-scale 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 back-scale plug plate to move upward until the back-scale filter box moves to the scale discharge groove, the bolts of the back-scale filter box are removed, the back-scale plug plate is separated from the back-scale plug plate, and the dirt in the back-scale plug plate is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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: Figure 1 This is a schematic diagram of the overall structure of a flow meter with a scale removal function proposed by the present invention; 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; Figure 3 A schematic structural diagram of an impeller of a flow meter with a scale removal function proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a pendulum plate of a flow meter with a scale removal function proposed by the present invention; Figure 5 A flow meter with scale removal function proposed by the present invention Figure 4 A magnified image of point A; Figure 6 A schematic diagram of the structure of a scale removal ring of a flow meter with a scale removal function proposed by the present invention; Figure 7 A flow meter with scale removal function proposed by the present invention Figure 6 A magnified view of point B; Figure 8A schematic structural diagram of a second torsion bar of a flow meter with a scale removal function proposed by the present invention; Fig. 9 The present invention is a schematic structural diagram of a scale return filter box of a flow meter with a scale removal function.

[0025] 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 groove; 7.9, movable frame; 7.10, movable plate; 7.11, second slider; 7.12, second slide groove; 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 groove; 8.3, scale discharge groove; 8.4, scale return plug plate; 8.5, mounting groove; 8.6, third slider; 8.7, scale return filter box; 8.8, second torsion bar; 8.9, second handle. DETAILED DESCRIPTION

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] 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 respectively fixedly mounted on the other ends of the water inlet pipe 2 and the water outlet pipe 3. 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 water outlet pipe 3. A converter 1.1 is fixedly mounted on the top of the flow meter 1, 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 flow meter.

[0028] 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.

[0029] 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, 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 gear disc 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 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, and 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 gear disc 6.7.

[0030] 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 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 slide groove 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-toothed end of the scale cleaning rod 7.5, and 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.

[0031] The cleaning assembly 7 also includes a movable frame 7.9, a movable plate 7.10, a second slider 7.11, a second slide 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 cleaning scraper ring 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 slide 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 slide 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 stretch 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 stretch 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 stretch spring 7.16 is fixedly mounted on the second scale cleaning spring seat 7.17.

[0032] More specifically, the scale return assembly 8 includes a scale return box 8.1, a third chute 8.2, a scale discharge groove 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 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 groove 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 provided on the scale return filter box 8.7, the second torsion bar 8.8 and the 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 groove 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-scale plug plate 8.4, the back-scale 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. The outer surface of the back-scale plug plate 8.4 and the third slider 8.6 is covered with an elastic rubber layer to play a sealing role, thereby avoiding water leakage in the gap between the back-scale plug plate 8.4 and the third slider 8.6 and the back-scale box 8.1 and the third slide groove 8.2.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] The staff twists the second handle 8.9 with both hands at the same time, and the rotation of the second handle 8.9 drives the second torsion bar 8.8 to rotate, and the rotation of the second torsion bar 8.8 drives the scale return plug plate 8.4 downward into the water outlet pipe 3, and the scale return filter box 8.7 of the scale return plug plate 8.4 intercepts scale impurities.

[0037] The rapid flow of water drives the impeller 5.3 to rotate, and the rotation of the impeller 5.3 drives the power rod 5.2 to rotate, and the rotation of the impeller 5.3 drives the rocker 6.1 to rotate around the axis of the power rod 5.2, and the rotation of the rocker 6.1 drives the swing plate 6.2 to make a circular motion, and the swing plate 6.2 drives the rotation of the rotating rod 6.4, and the rotation of the rotating rod 6.4 drives the rotation of the clutch spring seat 6.5 and the hexagonal prism 6.6, and the rotation of the hexagonal prism 6.6 drives the rotation of the clutch gear plate 6.7.

[0038] 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 gear plate 6.7 to slide on the hexagonal prism 6.6, and the clutch gear plate 6.7 moves toward the direction of the cleaning gear plate 7.6 until the clutch gear plate 6.7 is connected with the cleaning gear plate 7.6, and the clutch gear plate 6.7 stretches the clutch stretching spring 6.8, and the rotating clutch gear plate 6.7 drives the cleaning gear plate 7.6 to rotate.

[0039] 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 transfer ring 7.1 are threadedly matched. The rotation of the cleaning rod 7.5 drives the cleaning transfer 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 transfer ring 7.1 moves toward the internal channel of the flow meter 1. The first slider 7.7 of the cleaning transfer ring 7.1 slides along the first slide groove 7.8.

[0040] The movement of the cleaning ring 7.1 drives the cleaning plate 7.2 and the cleaning scraper ring 7.3 to move, and the cleaning scraper ring 7.3 enters the internal channel of the flow meter 1 to scrape 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 scraper plate 7.14 scrape off the scale layer.

[0041] When the cleaning 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.

[0042] Twist the first handle 6.10 in the opposite direction, the clutch block 6.11 no longer presses against the clutch toothed disc 6.7, the clutch tension spring 6.8 pulls back the clutch toothed disc 6.7 to disengage from the docking with the cleaning toothed disc 7.6, after the cleaning toothed disc 7.6 stops rotating, the cleaning tension spring 7.16 retracts, the cleaning tension spring 7.16 pulls the cleaning transfer ring 7.1 away from the flow meter 1, and the cleaning transfer ring 7.1, the cleaning plate 7.2 and the cleaning scraper ring 7.3 are reset, and the first handle 6.10 is twisted twice repeatedly, so that the cleaning scraper ring 7.3 removes scale back and forth.

[0043] 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, and the scale return filter box 8.7 intercepts the scale. 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.

[0044] Through the closed design, the scale removal process can be completed without disassembling the flow meter 1; through the combined action of the water flow and the power component 5, the scale scraper ring 7.3 and the scraper plate 7.14 of the scale removal component 7 are driven to remove the scale, and the elastic activity of the scraper plate 7.14 removes the scale on the electrode 1.2 without damaging the electrode 1.2, especially the scraping of 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, while reducing equipment downtime, ensuring production continuity, and improving equipment availability and overall system operation efficiency.

[0045] 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.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope 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 respectively fixedly mounted on the other ends of the water inlet pipe (2) and the water outlet pipe (3), and the descaling 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 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 the two scale cleaning scraper rings (7.3) are fixedly mounted on the other end of the scale cleaning plate (7.2).

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. A 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 a 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. A flow meter with scale removal function according to claim 1, characterized in that: 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 an end of the rotating rod (6.4) is fixedly mounted on the other end of the swing plate (6.2).

5. A flow meter with scale removal function according to claim 4, characterized in that: 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).

6. A flow meter with scale removal function according to claim 5, characterized in that: 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 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 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).

7. A 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 slide groove (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 at the center of a scale cleaning transfer ring (7.1) and on the non-toothed end of the scale cleaning toothed disc (7.6) of the scale cleaning toothed disc (7.6), 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 slide groove (7.8) is formed 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).

8. The flow meter with scale removal function according to claim 7, 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 slide groove (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 slide groove (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 slide groove (7.12); one end of the clamping spring (7.13) is fixedly mounted on the inner top of the movable frame (7.9); the other end of the clamping 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 clamping spring (7.13).

9. A flow meter with scale removal function according to claim 8, 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).

10. 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 groove (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 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 groove (8.3) is provided on the scale return box (8.1), and the scale return plug plate (8.4) is provided on the exterior wall of the water outlet pipe (3). 4) 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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