A flow measurement device that reduces the effects of fluid flow

Abstract

The application relates to the water treatment production field, in particular to a flow measuring device capable of reducing the influence of fluid flow, which comprises a pipeline piece, a flowmeter body, a supporting piece, a turbine, a filter screen, a cleaning assembly and a spraying assembly, the flowmeter body is arranged at the top of one side of the pipeline piece and is used for sensing the fluid flow rate, the cleaning assembly is arranged, the flow guide plate is automatically rotated clockwise by the flow of the fluid, the filter screen can be automatically cleaned, the filter screen is in a semicircular shape structure, the contact area of the filter screen and the fluid is increased, the interception rate of solid impurities is improved, meanwhile, the rotating movement driven by the flow guide plate can more comprehensively and quickly clean the inner arc surface of the filter screen, impurity residues are reduced, the filter screen is kept unobstructed, the problems of filter screen blockage and performance decline after long-time use are effectively solved, the continuity and stability of filtration are improved, and the detection accuracy of the flowmeter body is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water treatment production, in particular to a flow measuring device capable of reducing the influence of fluid flow. BACKGROUND

[0002] In modern industry and scientific research, accurate measurement of fluid flow is of great significance. In order to accurately grasp the key of fluid flow state, it is necessary to install a flow measuring device on the pipeline. The existing commonly used flow measuring devices include ultrasonic flow device, electromagnetic flow device and turbine flow device. The turbine flow device is to rotate the fluid through vortex motion, and the frequency of vortex is proportional to the flow rate of the fluid. The sensor senses the frequency signal of the vortex, and then converts it into an electrical signal to transmit to the measuring system, so as to obtain accurate flow value and provide more valuable data.

[0003] During the use of the turbine flow device, some defects will be produced. When the turbine flow device detects the fluid inside the pipeline, the solid impurities in the fluid will be stuck on the rotating parts and turbine blades of the turbine flow device. The existing solution is to filter through the pre-filter. However, the pre-filter may gradually fail or its performance may decrease after long-term use, and it can only filter large solid impurities, and cannot continuously and effectively filter small solid impurities. Therefore, the small impurities attached to the turbine blades and other parts will reduce the mechanical properties of the turbine, affect the measurement accuracy and reliability, especially in the special environment of sewage treatment plant. In addition, when the liquid in the pipeline has viscosity, the viscous liquid itself has large internal friction and adhesion, which makes the solid impurities more easily combined with the liquid, and the impurities are difficult to separate from the viscous liquid and enter the filter structure, resulting in reduced filtering efficiency.

[0004] Therefore, it is necessary to provide a flow measuring device capable of reducing the influence of fluid flow to solve the above technical problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a flow measuring device capable of reducing the influence of fluid flow, which solves the technical problems that the pre-filter filtering can only filter large solid impurities, and the pre-filter filtering will gradually fail or its performance will decrease after long-term use, and the viscous liquid will be retained on the pre-filter filtering, which will affect the measurement accuracy of the turbine flow device.

[0006] To achieve the above purpose, the present application realizes the following technical scheme:

[0007] The technical scheme adopted by the present application to solve its technical problems is: a flow measurement device capable of reducing fluid flow influence, comprising a pipeline piece, a flowmeter body, support pieces, a turbine, filter screens, a cleaning assembly and a spraying assembly, the flowmeter body is arranged on one side of the top of the pipeline piece and is used for sensing fluid flow rate, the number of support pieces is two and they are fixedly connected to the inner side of one end of the pipeline piece in a symmetrical manner, the turbine is rotatably connected between the two support pieces, the number of filter screens is three and they are arranged on one side of the inner side of the pipeline piece and are used for filtering solid impurities in the fluid, the cleaning assembly is arranged on one side of the pipeline piece and is used for self-cleaning impurities in the filter screen, and the spraying assembly is arranged on one side of the pipeline piece and is used for spraying impurities during the cleaning process of the filter screen.

[0008] Preferably, the cleaning assembly comprises a cleaning ring arranged in the pipeline piece, a connecting ring is arranged on the left side of the filter screen, the connecting ring is arranged in the cleaning ring, rotating shafts are rotatably connected to the front and back ends of the cleaning ring and the connecting ring, a rotating rod is arranged between the two rotating shafts, first cleaning rings are arranged at the left and right ends of the rotating rod, the first cleaning rings are hollow ring structures, the filter screen is a semicircular structure, guide plates in the form of an annular array are arranged on the outer side of the rotating rod, straight cleaning brushes are arranged at the left and right ends of the outer side of the first cleaning rings, the straight cleaning brush on the right side is tightly attached to the inner side wall of the filter screen, limit cavity plates are arranged at the bottom of the cleaning ring and the connecting ring, and collecting tanks are detachably connected to the bottom of the three limit cavity plates and penetrate the pipeline piece below.

[0009] Preferably, a second cleaning ring arranged in a vertical direction is arranged at the middle of the first cleaning ring, the second cleaning ring is a hollow ring structure, hook-shaped cleaning brushes arranged in opposite directions are arranged at the upper and lower ends of the second cleaning ring, and the hook-shaped cleaning brush on the right side is tightly attached to the inner side wall of the filter screen.

[0010] Preferably, the sizes of the straight cleaning brushes at the left and right ends and the hook-shaped cleaning brushes at the upper and lower ends are different.

[0011] Preferably, a linkage groove is arranged at the rear end of the cleaning ring, a defective wheel is rotatably connected in the linkage groove, the front end of the rotating shaft at the rear end is fixedly connected to the defective wheel, fixed seats are arranged at the front and back ends of the connecting ring, arc-shaped cleaning plates are rotatably connected to the bottom of the two fixed seats, the cleaning plates are arranged below the filter screen, back cleaning brushes are arranged on the side of the cleaning plates close to the filter screen, transmission gears are arranged on the side of the fixed seats away from the cleaning plates, and the defective wheel and the transmission gears are engaged.

[0012] Preferably, the fixed seat is rotatably connected with an L-shaped moving block away from one side of the cleaning plate, the top of the L-shaped moving block is rotatably connected with one end of a connecting rod, and the other end of the connecting rod is fixedly connected with the cleaning plate, the front and rear ends of the connecting ring are provided with arc-shaped seats through bolts, the arc-shaped seats are provided with L-shaped grooves, and the arc-shaped seats are provided with curved spring rods in the L-shaped grooves.

[0013] Preferably, the three filter screens are provided with different pore diameters, and the pore diameters of the filter screens on the left side are larger than those of the filter screens on the right side.

[0014] Preferably, the lower bottom wall of the cleaning ring is provided with an inclined plate, the lowest end of the inclined plate is arranged on the left side, the highest end of the inclined plate is arranged on the right side, a triangular groove is arranged at the lowest end of the inclined plate, and a pointed end groove is arranged at the highest end of the inclined plate and communicates with the triangular groove.

[0015] Preferably, the injection assembly comprises a liquid pump machine arranged at the top of the left side of the pipeline, the liquid inlet end of the liquid pump machine is connected with an external hot water supply machine, the output end of the liquid pump machine is provided with a liquid delivery pipe, the liquid delivery pipe passes through the inside of the pipeline through connecting pipes and is fixedly connected with the cleaning ring, the front end cavity of the cleaning ring is provided with a rotating head fixedly connected with the connecting pipes, the front end of the rotating shaft is fixedly connected with the output end of the rotating head, the inside of the rotating shaft at the front end is provided with a liquid conveying groove, the first cleaning ring and the second cleaning ring are provided with conveying pipes, the conveying pipes and the liquid conveying groove are in communication, and the first cleaning ring and the second cleaning ring are provided with output pipes communicating with the conveying pipes on the side of the filter screen.

[0016] Beneficial effects:

[0017] (1) The cleaning assembly is arranged, which is beneficial to driving the flow guide plate to rotate clockwise automatically through the flow of fluid, can automatically clean the filter screen, the filter screen is in a semicircular shape, the contact area of the filter screen and the fluid is increased, so that the interception rate of solid impurities is improved, meanwhile, the rotating movement driven by the flow guide plate can more comprehensively and quickly clean the inner arc surface of the filter screen, reduces impurity residues, keeps the filter screen unobstructed, effectively solves the problems of filter screen blockage and performance decline after long-term use, improves the continuity and stability of filtration, and reduces the influence on the detection accuracy of the flowmeter body.

[0018] (2) The present application can increase the cleaning strength and range by setting the spraying assembly, and the impurities on the filter screen can be cleaned more thoroughly by the combination of the first cleaning ring and the second cleaning ring, and the hot water can dissolve the viscous liquid or reduce its viscosity to some extent, which is convenient for cleaning and reduces the adhesion and residual of the filter screen.

[0019] (3) The present application can realize the cleaning and grading of different size impurities in the fluid by the different sizes of the straight cleaning brush and the hook-shaped cleaning brush located at the left and right ends and the three filter screens with different pore sizes, and the different size straight cleaning brush and hook-shaped cleaning brush are used to clean the different area of the filter screen, which can quickly and effectively remove more impurities, and the different pore size filter screen filters out different particle impurities, thereby improving the fineness and effect of the filtration, and the present application can automatically clean the other side of the filter screen by the cooperation of the broken wheel, the fixing seat, the cleaning plate, the back cleaning brush, the arc-shaped seat and the L-shaped groove, thereby realizing the automatic cleaning of the double sides of the filter screen, further enhancing the cleaning effect of the present application, and being beneficial to improving the detection accuracy of the flowmeter body. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in combination with the drawings and examples.

[0021] Figure 1 It is the overall structure schematic diagram of the present application;

[0022] Figure 2 It is the overall structure partial cross-sectional view of the present application;

[0023] Figure 3 It is the filter screen schematic diagram of the present application;

[0024] Figure 4 It is the cleaning assembly schematic diagram of the present application;

[0025] Figure 5 It is the cleaning assembly exploded view of the present application;

[0026] Figure 6 It is the cleaning plate schematic diagram of the present application;

[0027] Figure 7 It is Figure 5 The local enlarged view of A in the middle;

[0028] Figure 8 It is the first cleaning ring longitudinal cross-sectional view of the present application.

[0029] In the drawing: 1, pipe fitting; 12, flowmeter body; 13, support; 14, turbine; 15, filter screen; 151, connecting ring;

[0030] 2. Cleaning assembly; 21. Cleaning ring; 2101. Inclined plate; 2102. Triangular groove; 2103. Tip groove; 22. Rotating shaft; 23. Rotating rod; 24. First cleaning ring; 25. Guide plate; 26. Straight cleaning brush; 27. Positioning cavity plate; 28. Collecting trough; 211. Second cleaning ring; 212. Hook-shaped cleaning brush; 221. Defective wheel; 222. Fixed seat; 223. Cleaning plate; 224. Back cleaning brush; 225. Transmission gear; 226. Arc seat; 227. L-shaped groove; 228. Curved spring rod; 229. L-shaped moving block;

[0031] 3. Injection assembly; 31. Liquid pump; 32. Infusion tube; 33. Transmission tube; 34. Output tube. DETAILED DESCRIPTION

[0032] 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.

[0033] like Figures 1-5 As shown, a flow measurement device that can reduce the impact of fluid flow includes a pipe member 1, a flow meter body 12, a support member 13, a turbine 14, a filter 15, a cleaning component 2 and a spray component 3, wherein flanges are installed on the left and right ends of the pipe member 1 for connecting the pipes at the installation site, the flow meter body 12 is arranged at the top right side of the pipe member 1, and is used to sense the fluid flow rate, there are two support members 13, and they are symmetrically distributed and fixedly connected at the inner right end of the pipe member 1, the turbine 14 is rotatably connected between the two support members 13, there are three filter screens 15, which are arranged on one side of the inner side of the pipe member 1 for filtering solid impurities inside the fluid, the cleaning component 2 is arranged on one side of the pipe member 1 for self-cleaning impurities inside the filter screen 15, and the cleaning component 2 includes a filter screen 15 installed inside the pipe member 1. A cleaning ring 21 is provided at the top, a connecting ring 151 is installed on the left side of the filter screen 15, and the connecting ring 151 is installed inside the cleaning ring 21. The front and rear ends of the cleaning ring 21 and the connecting ring 151 are rotatably connected with a rotating shaft 22. A rotating rod 23 is installed between the two rotating shafts 22. A first cleaning ring 24 is installed at the left and right ends of the rotating rod 23. The first cleaning ring 24 is a hollow annular structure, and the filter screen 15 is a semi-arc structure. A guide plate 25 in a ring array is installed on the outside of the rotating rod 23. Straight cleaning brushes 26 are installed on the left and right ends of the outer side of the first cleaning ring 24. The straight cleaning brush 26 on the right side is tightly attached to the inner wall of the filter screen 15. A limiting cavity plate 27 is installed at the bottom of the cleaning ring 21 and the connecting ring 151. The bottom of the three limiting cavity plates 27 passes through the bottom of the pipeline member 1 and is detachably connected to the collecting tank 28.

[0034] It should be noted that when the fluid flows in the pipe piece 1, the fluid passes through the filter screen 15 for solid impurity filtering, and the flowmeter body 12 senses the fluid flow rate for flow measurement, and in the cleaning assembly 2, when the fluid impacts the flow guide plate 25, the rotating rod 23 is driven to rotate clockwise around the rotating shaft 22, and when the rotating rod 23 rotates, the straight cleaning brush 26 is also driven to rotate clockwise by the first cleaning ring 24, which is the straight cleaning brush 26 cleaning the inner side wall of the filter screen 15, and the impurities are scraped off, and the scraped impurities fall into the limiting cavity plate 27 along the filter screen 15 and finally enter the collecting groove 28.

[0035] The cleaning assembly 2 is arranged, which is beneficial to driving the flow guide plate 25 to rotate clockwise automatically through the flow of the fluid, and the filter screen 15 can be automatically cleaned, wherein the filter screen 15 is a semicircular structure, the contact area of the filter screen 15 and the fluid is increased, so that the interception rate of solid impurities is improved, and the rotating movement driven by the flow guide plate 25 can more comprehensively and quickly clean the inner arc surface of the filter screen 15, reduce impurity residues, keep the filter screen 15 unobstructed, effectively solve the problems of filter screen blockage and performance decline after long-term use, improve the persistence and stability of filtration, and thus reduce the influence on the detection accuracy of the flowmeter body.

[0036] As shown in Figure 5 The middle part of the first cleaning ring 24 is provided with a second cleaning ring 211 arranged in the vertical direction, the second cleaning ring 211 is a hollow ring structure, and the upper and lower ends of the second cleaning ring 211 are provided with hook-shaped cleaning brushes 212 arranged in opposite directions, and the hook-shaped cleaning brush 212 on the right side is tightly attached to the inner side wall of the filter screen 15.

[0037] It should be noted that the second cleaning ring 211 and the hook-shaped cleaning brush 212 are arranged, wherein the hook-shaped cleaning brush 212 can better touch some areas of the filter screen 15 that are difficult to clean, and can quickly separate the viscous substances from the filter screen 15, further enhancing the cleaning strength of the impurities attached to the filter screen 15, and ensuring the efficient filtering performance of the filter screen 15.

[0038] It is worth noting that the hook-shaped cleaning brush 212 can clean the viscous area of the filter screen 15, and the straight cleaning brush 26 can clean other solid impurity parts of the filter screen 15, and the two can comprehensively clean the filter screen 15 and reduce impurity residues

[0039] As shown in Figures 4-5 The sizes of the straight cleaning brushes 26 at the left and right ends and the hook-shaped cleaning brushes 212 at the upper and lower ends are different.

[0040] It should be noted that the larger size straight cleaning brush 26 and hook-shaped cleaning brush 212 are used to clean the larger area of the filter screen 15, which can quickly and effectively remove more impurities, while the smaller size straight cleaning brush 26 and hook-shaped cleaning brush 212 are focused on some details or more narrow and complex areas to ensure that the impurities in these places can be fully cleaned, further improving the cleaning effect.

[0041] As shown in Figures 3-6 The rear end of the cleaning ring 21 is provided with a linkage groove, and a defective wheel 221 is rotatably connected in the linkage groove. The front end of the rotating shaft 22 located at the rear end is fixedly connected with the defective wheel 221. The front and rear ends of the connecting ring 151 are provided with fixed seats 222. The bottoms of the two fixed seats 222 are rotatably connected with arc-shaped cleaning plates 223. The cleaning plates 223 are arranged below the filter screen 15. The side of the cleaning plate 223 close to the filter screen 15 is provided with a back cleaning brush 224. The side of the fixed seat 222 away from the cleaning plate 223 is provided with a transmission gear 225. The defective wheel 221 and the transmission gear 225 are engaged.

[0042] It should be noted that when the rotating shaft 22 rotates, the defective wheel 221 will rotate. Since the defective wheel 221 is engaged with the transmission gear 225, the transmission gear 225 is driven to rotate. The rotation of the transmission gear 225 will drive the cleaning plate 223 connected thereto to move, so that the back cleaning brush 224 on the cleaning plate 223 rotates by 180 degrees along one side of the filter screen 15, thereby cleaning the side of the filter screen 15 facing the opposite direction of the fluid, sweeping away the impurities accumulated on one side of the filter screen 15, reducing the accumulation of impurities, and helping to maintain the filtering effect and fluid passability of both sides of the filter screen 15, further improving the cleaning effect.

[0043] As shown in Figure 6 The side of the fixed seat 222 away from the cleaning plate 223 is rotatably connected with an L-shaped moving block 229. The top of the L-shaped moving block 229 is rotatably connected with the cleaning plate 223 through one end of a connecting rod. The front and rear ends of the connecting ring 151 are provided with arc-shaped seats 226 through bolts. The arc-shaped seats 226 are provided with L-shaped grooves 227 inside. The arc-shaped seats 226 are provided with curved spring rods 228 inside the L-shaped grooves 227. The horizontal end of the L-shaped moving block 229 is slidably connected in the curved spring rod 228.

[0044] It should be noted that when the incomplete wheel 221 rotates with the transmission gear 225, the horizontal end of the L-shaped moving block 229 inside the cleaning plate 223 is driven to slide in the curved spring rod 228, the curved spring rod 228 plays a guiding and elastic buffering role, so that the cleaning plate 223 cleans more stably. When the teeth on the incomplete wheel 221 disengage from the transmission gear 225, the elasticity inside the curved spring rod 228 is released, driving the cleaning plate 223 to quickly pop up along one side of the filter screen 15, which can provide an instantaneous impact cleaning for the filter screen 15, helping to shake off or loosen some stubborn adhering impurities, and further improving the cleaning effect.

[0045] As shown in Figure 3 , the three filter screens 15 are respectively set to different pore sizes, and the pore size of the filter screen 15 on the left side is larger than that of the filter screen 15 on the right side.

[0046] It should be noted that the filter screens 15 with different pore sizes can realize the grading filtration of impurities of different sizes in the fluid. The filter screen 15 with a larger pore size can filter out larger particle impurities first, and the filter screen 15 with a smaller pore size can further filter out finer impurities, thereby improving the fineness and effect of filtration.

[0047] As shown in Figure 5 and Figure 7 , the lower bottom wall of the cleaning ring 21 is provided with a slope plate 2101, the lowest end of the slope plate 2101 is arranged on the left side, the highest end of the slope plate 2101 is arranged on the right side, a triangular groove 2102 is arranged at the lowest end position of the slope plate 2101, and a sharp end groove 2103 is arranged at the highest end position of the slope plate 2101 and communicates with the triangular groove 2102.

[0048] It should be noted that the lowest end of the slope plate 2101 is arranged on the left side, and the highest end of the slope plate 2101 is arranged on the right side, so that the fluid can pass through the lowest end of the slope plate 2101 towards the highest end, thereby generating a strong impact force, so as to play a role of removing the solid impurities adhered to the straight cleaning brush 26 and the second cleaning ring 211;

[0049] The triangular groove 2102 and the sharp end groove 2103 can guide and converge the fluid. When the fluid passes through the triangular groove 2102, the shape of the triangular groove 2102 can make the fluid gradually converge and concentrate, and then further shrink at the sharp end groove 2103, so that the speed of the fluid is further increased and the impact force is stronger. In this way, the solid impurities on the straight cleaning brush 26 and the second cleaning ring 211 can be more effectively impacted and cleaned, and the cleaning efficiency and quality are improved.

[0050] As shown in Figure 2 , Figure 5 andFigure 8 As shown, the spray assembly 3 is arranged on one side of the pipe piece 1, which can spray impurities during the cleaning process of the filter screen 15. The spray assembly 3 comprises a liquid pump 31 arranged on the top of the left side of the pipe piece 1. The liquid pump 31 can be started by a terminal signal. The liquid pump 31 is connected to an external hot water supply machine through the terminal signal. The output end of the liquid pump 31 is provided with a liquid delivery pipe 32. The liquid delivery pipe 32 penetrates the pipe piece 1 through a connecting pipe and is fixedly connected to the cleaning ring 21. The front end of the cleaning ring 21 is provided with a rotating head fixedly connected to the connecting pipe. The front end of the rotating shaft 23 is fixedly connected to the output end of the rotating head. A liquid transmission groove is arranged in the front end of the rotating shaft 23. The first cleaning ring 24 and the second cleaning ring 211 are provided with a transmission pipe 33. The transmission pipe 33 is connected to the liquid transmission groove. The first cleaning ring 24 and the second cleaning ring 211 are provided with an output pipe 34 connected to the transmission pipe 33.

[0051] It should be noted that when the filter screen 15 needs to be cleaned, the liquid pump 31 is started. The liquid pump 31 delivers hot water provided by the external hot water supply machine to the connecting pipe through the liquid delivery pipe 32, and enters the rotating head in the cleaning ring 21. The rotating head rotates under the driving of the rotating shaft 23. The hot water enters the liquid transmission groove in the rotating shaft 23 through the rotating head, and then is delivered to the first cleaning ring 24 and the second cleaning ring 211 through the transmission pipe 33, and finally is sprayed out of the output pipe 34 connected to the transmission pipe 33, so as to comprehensively spray and clean the filter screen 15. At the same time, the rotating cleaning of the cleaning ring 21 is assisted by the spraying of the hot water to clean the impurities.

[0052] The spray assembly 3 can increase the cleaning strength and range of the hot water when the first cleaning ring 24 and the second cleaning ring 211 rotate automatically. The combination of the first cleaning ring 24 and the second cleaning ring 211 can more thoroughly clean the impurities on the filter screen 15. The hot water can dissolve the viscous liquid or reduce the viscosity to some extent, which is convenient for cleaning and reduces the adhesion and residue of the filter screen 15.

[0053] The working principle of the present application is that when fluid flows in the pipe 1, solid impurities are filtered by the filter screen 15, the flow meter body 12 measures the flow, when the fluid hits the flow guide plate 25 to make the rotating rod 23 rotate clockwise around the rotating shaft 22, the straight cleaning brush 26 is rotated to clean the inner side wall of the filter screen 15, and the scraped impurities fall into the limiting cavity plate 27 and then into the collection groove 28, the hook-shaped cleaning brush 212 cleans the more difficult-to-clean area of the filter screen 15 and sticky substances, at the same time, the rotating shaft 22 rotates to drive the incomplete wheel 221 to rotate, which drives the transmission gear 225 to rotate, so that the cleaning plate 223 and the rear cleaning brush 224 thereon clean the other side of the filter screen 15, the L-shaped moving block 229 and the curved spring rod 228 play the roles of guiding and elastic buffering, and when the incomplete wheel 221 is disengaged from the transmission gear 225, the cleaning plate 223 is elastically popped up by the curved spring rod 228 for cleaning, the lowest end of the inclined plate 2101 is arranged on the left side thereof, and the highest end of the inclined plate 2101 is arranged on the right side thereof, so that the fluid can pass through the lowest end of the inclined plate 2101 towards the highest end thereof, thereby generating a stronger impact force, so as to play a role of removing the solid impurities adhered to the straight cleaning brush 26 and the second cleaning ring 211 in the later stage, and the fluid is guided and converged by the triangular groove 2102 and the pointed groove 2103, when the fluid passes through the triangular groove 2102, the shape of the triangular groove 2102 makes the fluid gradually converge and concentrate, and then further shrink at the pointed groove 2103, so that the speed of the fluid is further increased, and the impact force is stronger, so that the solid impurities on the straight cleaning brush 26 and the second cleaning ring 211 can be more effectively impacted and cleaned, and the cleaning efficiency and quality are improved;

[0054] When the filter screen 15 needs to be cleaned, the liquid pump machine 31 is started, hot water provided by an external hot water machine is delivered to the connecting pipe through the liquid delivery pipe 32, enters the rotating head in the cleaning ring 21, the rotating head is rotated under the driving of the rotating rod 23, the hot water enters the liquid transmission groove in the rotating rod 23 through the rotating head, and then is delivered to the first cleaning ring 24 and the second cleaning ring 211 through the transmission pipe 33 respectively, and finally is sprayed out from the output pipe 34 connected with the transmission pipe 33 to comprehensively spray and clean the filter screen 15, while the cleaning ring 21 is rotating and cleaning, the impurities are cleaned by the spraying of the hot water.

[0055] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A flow measurement device capable of reducing the influence of fluid flow, characterized in that: including a pipe member (1); A flow meter body (12) is arranged on the top of one side of the pipeline member (1) and is used to sense the flow rate of the fluid; Two support members (13) are provided and symmetrically distributed on one end of the inner side of the pipe member (1) and fixedly connected; a turbine (14) rotatably connected between the two supports (13); Three filter screens (15) are provided, which are arranged on one side of the inner side of the pipe member (1) and are used to filter solid impurities in the fluid; A cleaning component (2) is provided on one side of the pipe member (1) and is used to self-clean impurities inside the filter screen (15); An injection assembly (3) is provided on one side of the pipe member (1) and is used to inject impurities during the cleaning process of the filter screen (15); The cleaning assembly (2) comprises a cleaning ring (21) installed inside the pipe member (1), a connecting ring (151) is installed on the left side of the filter screen (15), and the connecting ring (151) is installed inside the cleaning ring (21). The front and rear ends of the cleaning ring (21) and the connecting ring (151) are rotatably connected to a rotating shaft (22), a rotating rod (23) is installed between the two rotating shafts (22), and the left and right ends of the rotating rod (23) are installed with a first cleaning ring (24), and the first cleaning ring (24) is a hollow ring structure. The filter screen (15) is a semi-arc-shaped structure. A guide plate (25) in a ring array is installed on the outside of the rotating rod (23). Straight cleaning brushes (26) are installed on the left and right ends of the outside of the first cleaning ring (24). The straight cleaning brush (26) located on the right side is tightly attached to the inner wall of the filter screen (15). The bottom of the cleaning ring (21) and the connecting ring (151) is installed with a limiting cavity plate (27). The bottom of the three limiting cavity plates (27) passes through the bottom of the pipeline member (1) and is detachably connected to a collection tank (28).

2. A flow measurement device capable of reducing the influence of fluid flow according to claim 1, characterized in that: A second cleaning ring (211) arranged in a vertical direction is installed in the middle of the first cleaning ring (24). The second cleaning ring (211) is a hollow ring structure. Hook-shaped cleaning brushes (212) arranged in opposite directions are installed at the upper and lower ends of the second cleaning ring (211). The hook-shaped cleaning brush (212) located on the right side is tightly attached to the inner wall of the filter screen (15).

3. The flow measurement device capable of reducing the influence of fluid flow according to claim 2, characterized in that: The straight cleaning brushes (26) located at the left and right ends and the hook-shaped cleaning brushes (212) located at the upper and lower ends are of different sizes.

4. The flow measurement device capable of reducing the influence of fluid flow according to claim 1, characterized in that: The rear end of the cleaning ring (21) is provided with a linkage groove, in which a broken wheel (221) is rotatably connected. The front end of the rotating shaft (22) located at the rear end is fixedly connected to the broken wheel (221). The front and rear ends of the connecting ring (151) are provided with fixing seats (222). The bottoms of the two fixing seats (222) are rotatably connected to arc-shaped cleaning plates (223). The cleaning plates (223) are arranged below the filter screen (15). A back cleaning brush (224) is installed on the side of the cleaning plate (223) close to the filter screen (15). A transmission gear (225) is provided on the side of the fixing seat (222) away from the cleaning plate (223). The broken wheel (221) and the transmission gear (225) are meshed.

5. The flow measurement device capable of reducing the influence of fluid flow according to claim 4, characterized in that: The fixed seat (222) is rotatably connected to a side away from the cleaning plate (223) with an L-shaped moving block (229). The top of the L-shaped moving block (229) is rotated through the fixed seat (222) through one end of the connecting rod and is fixedly connected to the cleaning plate (223). The front and rear ends of the connecting ring (151) are mounted with arc seats (226) by bolts. An L-shaped groove (227) is provided inside the arc seat (226). A curved spring rod (228) is mounted inside the L-shaped groove (227) of the arc seat (226). The horizontal end of the L-shaped moving block (229) is slidably connected inside the curved spring rod (228).

6. The flow measurement device capable of reducing the influence of fluid flow according to claim 4, characterized in that: The three filter screens (15) are respectively set to have different apertures, and the aperture of the filter screen (15) located on the left is successively larger than the aperture of the filter screen (15) located on the right.

7. The flow measurement device capable of reducing the influence of fluid flow according to claim 4, characterized in that: An inclined plate (2101) is installed on the bottom wall below the cleaning ring (21), the lowest end of the inclined plate (2101) is arranged on the left side thereof, and the highest end of the inclined plate (2101) is arranged on the right side thereof. A triangular groove (2102) is provided at the lowest end of the inclined plate (2101), and a tip groove (2103) connected to the triangular groove (2102) is provided at the highest end of the inclined plate (2101).

8. The flow measurement device capable of reducing the influence of fluid flow according to claim 3, characterized in that: The injection assembly (3) includes a liquid pump (31) installed on the top left side of the pipe member (1), the liquid inlet end of the liquid pump (31) is connected to an external water heater, and the output end of the liquid pump (31) is installed with a liquid infusion pipe (32), the liquid infusion pipe (32) passes through the interior of the pipe member (1) through a connecting pipe and is fixedly connected to the cleaning ring (21), the front end inner cavity of the cleaning ring (21) is installed with a rotating head fixedly connected to the connecting pipe, the front end of the rotating rod (23) is fixedly connected to the output end of the rotating head, a liquid transfer groove is provided inside the rotating rod (23) at the front end, a transmission pipe (33) is installed inside the first cleaning ring (24) and the second cleaning ring (211), the transmission pipe (33) and the liquid transfer groove are connected, and the first cleaning ring (24) and the second cleaning ring (211) are provided with an output pipe (34) connected to the transmission pipe (33) on one side facing the filter screen (15).

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