Anti-blocking turbine flowmeter

Abstract

The invention relates to the technical field of turbine flow meters, in particular to an anti-blocking turbine flow meter which comprises a main through pipe, a filter screen plate is fixedly connected to the left side of a positioning ring seat, a first cleaning part is arranged on the left side of the positioning ring seat, a filter screen drum is fixedly installed on the inner side of a material collecting end pipe, and a second cleaning part is arranged on the outer side of the filter screen drum. Firstly, a filter screen plate close to a water inlet flange plate is used for intercepting most impurities, at the moment, a micro motor drives a driving fluted disc, then a gear ring drives a transmission shaft, a first coupling shaft at the left end of the transmission shaft is used for driving a scraper frame, and the left side of the filter screen plate is cleaned; the mounting frame is driven by the second coupling shaft to rotate on the outer side of the filter screen drum, impurities left on screen meshes of the filter screen drum in a filtering mode are scraped off through the bristle layers on the mounting pieces, then deposited impurities are discharged through the slag discharging pipe at the bottom of the material collecting end pipe, and therefore the problem that the interior of the flow meter is blocked is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of turbine flowmeters, in particular to an anti-clogging turbine flowmeter. Background Art

[0002] The liquid turbine flowmeter is mainly composed of a turbine and a detection element installed on the outside. When the liquid flows into the turbine, it will cause the rotor to rotate. At this time, the specific inner diameter makes the rotor speed directly proportional to the flow rate. The detection element converts the detected rotation of the rotor blades into a signal proportional to the flow rate, thereby measuring the flow rate of the internal fluid. The liquid turbine flowmeter has the advantages of high accuracy, good repeatability, no zero drift, high range ratio, etc., and is widely used in a variety of liquid pipelines.

[0003] After searching, according to the patent application document with Chinese patent publication number CN215003748U, an anti-clogging turbine flowmeter is mentioned. The anti-clogging turbine flowmeter in the application document is to filter by designing a filter structure to prevent impurities in the liquid from entering the flowmeter, and the sundries on the surface of the filter can be pushed into the storage box for collection by the coordinated use of an air pump, a telescopic rod and a push plate;

[0004] However, in combination with the storage box structure of the turbine flowmeter, it can be known that the storage box is a bottom opening structure, and the storage box is located in the upper part of the flowmeter pipeline. It is common sense that when the vortex flowmeter is used in a water pipeline, since the water carries impurities such as mud, sand, and dead leaves, and the density of the impurities is often greater than that of water, when the impurities are filtered and retained on the filter net, a clogging structure will be formed. At this time, the air pump drives the telescopic rod to push the silt impurities to the storage box above. At this time, the bottom opening of the storage box cannot intercept the fallen impurities, which can easily cause the impurities to flow back due to gravity and clog the filter net again. Therefore, the filtering and anti-clogging effect of the anti-clogging turbine flowmeter needs to be further improved, and thus an anti-clogging turbine flowmeter is proposed. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides an anti-clogging turbine flowmeter, which has the advantage of being able to effectively filter and clean to prevent clogging. It solves the problem that the prior anti-clogging turbine flowmeter in the above background technology pushes impurities toward the storage box above, and the storage box cannot intercept the impurities, which are easily backflowed by gravity and clog the filter again.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of being able to effectively filter and clean to prevent clogging, the present invention provides the following technical solutions: an anti-clogging turbine flowmeter, comprising a main through-tube, a flowmeter meter end is fixedly installed on the top of the main through-tube, and an anti-clogging mechanism is arranged inside the main through-tube;

[0009] The anti-clogging mechanism includes a positioning ring seat fixed inside the main through-tube, a filter plate is fixedly connected to the left side of the positioning ring seat, a first cleaning piece is arranged on the left side of the positioning ring seat, a transmission shaft is rotatably connected to the inner side of the positioning ring seat, a driving piece is arranged on the outer side of the transmission shaft, a material collection end pipe is opened through the outside of the main through-tube, a filter screen cylinder is fixedly installed on the inner side of the material collection end pipe, and a second cleaning piece is arranged on the outer side of the filter screen cylinder.

[0010] Preferably, a water inlet flange is fixedly installed on the left end of the main through pipe, a first sealing gasket is fixedly connected to the inner side of the water inlet flange, the positioning ring seat is located on the side of the main through pipe close to the water inlet flange, a positioning pin is fixedly connected to the right side of the filter plate, a positioning hole matching the positioning pin is opened on the left side of the positioning ring seat, and the positioning pin is fixed to the inner side of the positioning hole through a pin shaft.

[0011] Preferably, a bearing sleeve is fixedly connected to the inner side of the positioning ring seat, the first cleaning member includes a first coupling shaft rotatably connected to the inner side of the bearing sleeve, a through groove is opened on the inner side of the filter plate, the left end of the first coupling shaft extends through and extends to the left outside of the through groove, the left end of the transmission shaft passes through the bearing sleeve and is coaxially fixed with the right end of the first coupling shaft, a scraper frame is fixed to the outer sleeve of the first coupling shaft, the scraper frame is a three-leaf scraper plate structure, and the three scraper plates are all in contact with the left side of the filter plate.

[0012] Preferably, three circular holes are provided on the outer side of the left end of the first coupling shaft, a clamping piece is provided inside the circular hole, the clamping piece includes a spring ring fixedly connected to the inside of the circular hole, the spring ring is fixedly connected to a clamping rod at the end facing away from the circular hole, and three reset grooves adapted to the clamping rod are provided on the inner side of the scraper frame.

[0013] Preferably, the driving member includes a gear ring fixedly sleeved on the outer side of the transmission shaft, the outer side of the gear ring is meshed with a driving gear disc, the outside of the main through pipe is provided with a ring groove seat, the driving gear disc is rotatably connected to the inner wall of the ring groove seat, a micro motor is fixedly installed on the left side of the ring groove seat, and the output end of the micro motor is fixedly connected to the left side of the driving gear disc.

[0014] Preferably, the diameter of the left end of the filter screen cylinder is equal to the outer diameter of the aggregate end pipe, and the diameter of the right end of the filter screen cylinder is larger than the outer diameter of the aggregate end pipe. The bottom of the aggregate end pipe is connected through a slag discharge pipe, and a valve is movably installed on the outside of the slag discharge pipe. The filter screen cylinder is a conical frustum structure.

[0015] Preferably, the second cleaning member includes a second coupling shaft rotatably connected to the left end of the filter cylinder, the left end of the second coupling shaft is coaxially fixed to the right end of the transmission shaft, the outer portion of the second coupling shaft is sleeved with a mounting frame, and the left end diameter and the right end diameter of the mounting frame are respectively larger than the left end diameter and the right end diameter of the filter cylinder.

[0016] Preferably, a slip ring groove is provided on the inner right wall of the aggregate end pipe, the right side of the mounting frame is slidably connected to the inner side of the slip ring groove, and three mounting plates distributed in a circular array are fixedly connected to the inner side of the mounting frame, and each of the mounting plates is fixed with a brush layer on the side facing the filter screen cylinder.

[0017] Preferably, a turbine seat is movably installed inside the main through-tube, the top of the turbine seat is rotatably connected to the bottom of the flow meter end, a drain flange is fixedly installed on the right end of the main through-tube, and a second sealing gasket is fixedly connected to the inner side of the drain flange.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides an anti-clogging turbine flowmeter, which has the following beneficial effects:

[0020] The anti-clogging turbine flowmeter first uses the filter plate close to the water inlet flange to intercept most of the impurities. At this time, the active gear plate is driven by a micro motor, and the active gear plate is engaged to drive the gear ring, and the gear ring drives the transmission shaft. The first coupling connected to the left end of the transmission shaft is used to drive the scraper frame to clean the left side of the filter plate to prevent clogging. At the same time, the second coupling is driven by the right end of the transmission shaft, and the mounting frame is driven to rotate on the outside of the filter cylinder through the second coupling. The impurities retained on the screen holes of the filter cylinder are scraped off by the bristle layer on the mounting sheet, and the deposited impurities are discharged through the slag discharge pipe at the bottom of the aggregate end pipe, thereby effectively preventing the problem of internal clogging of the flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the turbine flowmeter of the present invention;

[0022] Figure 2 for Figure 1 Front view of perspective;

[0023] Figure 3 for Figure 2 Partial cutaway view from perspective;

[0024] Figure 4 This is a schematic diagram of the connection structure between the positioning ring seat and the filter plate of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection structure between the positioning ring seat and the transmission shaft of the present invention;

[0026] Figure 6 for Figure 5 Schematic diagram of the clamping member structure in the viewing angle;

[0027] Figure 7 It is a schematic diagram of the structure of the filter screen cartridge and the second cleaning member of the present invention.

[0028] In the figure: 1. main through pipe; 2. flow meter end; 3. anti-clogging mechanism; 301. positioning ring seat; 302. filter plate; 303. first cleaning member; 3031. first coupling shaft; 3032. scraper frame; 304. transmission shaft; 305. driving member; 3051. gear ring; 3052. active gear disc; 306. aggregate end pipe; 307. filter screen cylinder; 308. second cleaning member; 3081. second coupling shaft; 3082. mounting frame; 3083. brush layer; 4. water inlet flange; 5. positioning pin rod; 6. bearing sleeve; 7. clamping member; 701. spring ring; 702. clamping rod; 8. reset groove; 9. ring groove seat; 10. micro motor; 11. slag discharge pipe; 12. turbine seat; 13. drainage flange. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-7 , an anti-clogging turbine flowmeter, comprising a main through-tube 1, a flowmeter meter end 2 is fixedly mounted on the top of the main through-tube 1, and an anti-clogging mechanism 3 is arranged inside the main through-tube 1;

[0031] The anti-clogging mechanism 3 includes a positioning ring seat 301 fixed inside the main through-pipe 1, a filter plate 302 is fixedly connected to the left side of the positioning ring seat 301, a first cleaning member 303 is arranged on the left side of the positioning ring seat 301, a transmission shaft 304 is rotatably connected to the inner side of the positioning ring seat 301, a driving member 305 is arranged on the outer side of the transmission shaft 304, a collection end pipe 306 is opened through the outside of the main through-pipe 1, a filter screen cylinder 307 is fixedly installed on the inner side of the collection end pipe 306, and a second cleaning member 308 is arranged on the outer side of the filter screen cylinder 307.

[0032] Furthermore, a water inlet flange 4 is fixedly installed on the left end of the main through pipe 1, and a first sealing gasket is fixedly connected to the inner side of the water inlet flange 4. The positioning ring seat 301 is located on the side of the main through pipe 1 close to the water inlet flange 4. A positioning pin 5 is fixedly connected to the right side of the filter plate 302. A positioning hole adapted to the positioning pin 5 is opened on the left side of the positioning ring seat 301, and the positioning pin 5 is fixed to the inner side of the positioning hole through a pin shaft.

[0033] Specifically, water is introduced through the water inlet flange 4, and the filter plate 302 is first used to intercept most of the impurities in the water. The filter plate 302 is fixed to the positioning hole of the positioning ring seat 301 through the positioning pin rod 5 and the pin shaft, so that the filter plate 302 can be easily disassembled and replaced.

[0034] Furthermore, the inner side of the positioning ring seat 301 is fixedly connected to the bearing sleeve 6, the first cleaning member 303 includes a first coupling shaft 3031 rotatably connected to the inner side of the bearing sleeve 6, the inner side of the filter plate 302 is provided with a through groove, the left end of the first coupling shaft 3031 extends through and extends to the left side outside of the through groove, the left end of the transmission shaft 304 passes through the bearing sleeve 6 and is coaxially fixed with the right end of the first coupling shaft 3031, and the outer sleeve of the first coupling shaft 3031 is fixed with a scraper frame 3032, the scraper frame 3032 is a three-leaf scraper plate structure, and the three scraper plates are all fitted with the left side of the filter plate 302.

[0035] Specifically, the left end of the transmission shaft 304 is connected to the first coupling shaft 3031 , so as to drive the first coupling shaft 3031 to control the scraper plate structure of the scraper frame 3032 to rotate in contact with the left side of the filter plate 302 for cleaning.

[0036] Furthermore, three circular holes are provided on the outer side of the left end of the first coupling shaft 3031, and a clamping member 7 is provided inside the circular hole. The clamping member 7 includes a spring ring 701 fixedly connected to the inside of the circular hole, and the spring ring 701 is fixedly connected to a clamping rod 702 at the end facing away from the circular hole. The inner side of the scraper frame 3032 is provided with three reset grooves 8 adapted to the clamping rod 702.

[0037] Specifically, the clamping rod 702 of the first coupling shaft 3031 is disengaged from the reset groove 8 on the inner side of the scraper frame 3032 by compressing the spring ring 701 which rebounds, thereby achieving the disassembly effect of the scraper frame 3032.

[0038] Furthermore, the driving member 305 includes a gear ring 3051 which is fixedly sleeved on the outer side of the transmission shaft 304, and a driving gear disc 3052 is meshed on the outer side of the gear ring 3051. A ring groove seat 9 is opened through the outside of the main through pipe 1, and the driving gear disc 3052 is rotatably connected to the inner wall of the ring groove seat 9. A micro motor 10 is fixedly installed on the left side of the ring groove seat 9, and the output end of the micro motor 10 is fixedly connected to the left side of the driving gear disc 3052.

[0039] Specifically, the micro motor 10 drives the active gear disc 3052 , and the active gear disc 3052 is used to mesh with the transmission gear ring 3051 , and then the gear ring 3051 drives the transmission shaft 304 .

[0040] Furthermore, the diameter of the left end of the filter screen cylinder 307 is equal to the outer diameter of the aggregate end pipe 306, and the diameter of the right end of the filter screen cylinder 307 is larger than the outer diameter of the aggregate end pipe 306. The bottom of the aggregate end pipe 306 is connected with a slag discharge pipe 11, and a valve is movably installed on the outside of the slag discharge pipe 11. The filter screen cylinder 307 is a conical frustum structure.

[0041] Specifically, the filter screen cartridge 307 is a conical truncated cone structure with a small left side and a large right side. The filter screen cartridge 307 is fixedly installed on the inner side of the aggregate end pipe 306, and the mesh holes on the outer surface of the filter screen cartridge 307 are used for secondary filtration.

[0042] Furthermore, the second cleaning member 308 includes a second coupling shaft 3081 rotatably connected to the left end of the filter cylinder 307, the left end of the second coupling shaft 3081 is coaxially fixed to the right end of the transmission shaft 304, and the outer portion of the second coupling shaft 3081 is sleeved with a mounting frame 3082, and the left end diameter and the right end diameter of the mounting frame 3082 are respectively larger than the left end diameter and the right end diameter of the filter cylinder 307.

[0043] Specifically, the second coupling shaft 3081 is driven by the right end of the transmission shaft 304 , and the second coupling shaft 3081 drives the mounting frame 3082 to rotate in the slip ring groove on the right wall of the collecting end pipe 306 .

[0044] Furthermore, a slip ring groove is provided on the inner right wall of the aggregate end pipe 306, and the right side of the mounting frame 3082 is slidably connected to the inner side of the slip ring groove. The inner side of the mounting frame 3082 is fixedly connected with three mounting plates distributed in a circular array, and each mounting plate is fixed with a brush layer 3083 on the side facing the filter screen cylinder 307.

[0045] Specifically, the mounting frame 3082 rotates outside the filter screen cylinder 307, and the brush layer 3083 of the mounting plate is used to continuously clean the screen holes on the outer surface of the filter screen cylinder 307. The scraped dirt sinks into the inner bottom wall of the aggregate end pipe 306 due to gravity, and then the valve of the slag discharge pipe 11 is opened to discharge the dirt and impurities.

[0046] Furthermore, a turbine seat 12 is movably installed inside the main through-pipe 1, and the top of the turbine seat 12 is rotatably connected to the bottom of the flow meter end 2. A drain flange 13 is fixedly installed on the right end of the main through-pipe 1, and a second sealing gasket is fixedly connected to the inner side of the drain flange 13.

[0047] Specifically, the water flow impacts the outside of the turbine seat 12, driving the turbine seat 12 to rotate, and is connected to the top of the turbine seat 12 through the bottom of the flow meter end 2. The magnetic induction coil inside the flow meter end 2 generates a magnetic field, and the turbine seat 12 cuts the magnetic induction lines to generate changes in the electromagnetic induction signal, thereby calculating and detecting the current water flow rate.

[0048] In summary, the anti-clogging turbine flowmeter first uses the filter plate 302 close to the water inlet flange 4 to intercept most of the impurities. At this time, the active gear plate 3052 is driven by the micro motor 10, and the active gear plate 3052 is engaged to drive the gear ring 3051, and then the gear ring 3051 drives the transmission shaft 304, and the first coupling shaft 3031 connected to the left end of the transmission shaft 304 is used to drive the scraper frame 3032 to clean the left side of the filter plate 302 to prevent clogging. At the same time, the second coupling shaft 3081 is driven by the right end of the transmission shaft 304, and the mounting frame 3082 is driven to rotate on the outside of the filter screen cylinder 307 through the second coupling shaft 3081, and the impurities retained on the screen holes of the filter screen cylinder 307 are scraped off by the bristle layer 3083 on the mounting sheet, and then the deposited impurities are discharged through the slag discharge pipe 11 at the bottom of the aggregate end pipe 306, thereby effectively preventing the problem of internal clogging of the flowmeter;

[0049] The filter plate 302 is fixed to the left side of the positioning ring seat 301 by the positioning pin rod 5, and the reset groove 8 of the scraper frame 3032 is clamped by the clamp rod 702 to realize the connection between the scraper frame 3032 and the first coupling shaft 3031, so as to facilitate the removal and replacement of the filter plate 302.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-clogging turbine flowmeter, comprising a main through pipe (1), characterized in that: A flow meter end (2) is fixedly mounted on the top of the main through-tube (1), and an anti-blocking mechanism (3) is provided inside the main through-tube (1); The anti-clogging mechanism (3) comprises a positioning ring seat (301) fixed inside the main through-tube (1); a filter screen plate (302) is fixedly connected to the left side of the positioning ring seat (301); a first cleaning member (303) is arranged on the left side of the positioning ring seat (301); a transmission shaft (304) is rotatably connected to the inner side of the positioning ring seat (301); a driving member (305) is arranged on the outer side of the transmission shaft (304); a material collecting end pipe (306) is opened through the outside of the main through-tube (1); a filter screen cylinder (307) is fixedly installed on the inner side of the material collecting end pipe (306); and a second cleaning member (308) is arranged on the outer side of the filter screen cylinder (307).

2. The anti-clogging turbine flowmeter according to claim 1, characterized in that: A water inlet flange (4) is fixedly mounted on the left end of the main through-tube (1), a first sealing gasket is fixedly connected to the inner side of the water inlet flange (4), the positioning ring seat (301) is located on a side of the main through-tube (1) close to the water inlet flange (4), a positioning pin (5) is fixedly connected to the right side of the filter plate (302), a positioning hole adapted to the positioning pin (5) is provided on the left side of the positioning ring seat (301), and the positioning pin (5) is plugged and fixed to the inner side of the positioning hole via a pin shaft.

3. The anti-clogging turbine flowmeter according to claim 1, characterized in that: The inner side of the positioning ring seat (301) is fixedly connected to a bearing sleeve (6); the first cleaning member (303) includes a first coupling shaft (3031) rotatably connected to the inner side of the bearing sleeve (6); a through slot is provided on the inner side of the filter plate (302); the left end of the first coupling shaft (3031) extends through and extends to the left side of the through slot; the left end of the transmission shaft (304) passes through the bearing sleeve (6) and is coaxially fixed to the right end of the first coupling shaft (3031); a scraper frame (3032) is sleeved and fixed to the outside of the first coupling shaft (3031); the scraper frame (3032) is a three-leaf scraper plate structure; the three scraper plates are all in contact with the left side of the filter plate (302).

4. The anti-clogging turbine flowmeter according to claim 3 is characterized in that: The left end of the first coupling shaft (3031) is provided with three circular holes on its outer side, and a clamping member (7) is arranged inside the circular hole. The clamping member (7) comprises a spring ring (701) fixedly connected to the inside of the circular hole, and the spring ring (701) is fixedly connected to a clamping rod (702) at one end away from the circular hole. The scraper frame (3032) is provided with three reset grooves (8) adapted to the clamping rod (702) on its inner side.

5. The anti-clogging turbine flowmeter according to claim 1, characterized in that: The driving member (305) comprises a toothed ring (3051) sleeved and fixedly connected to the outer side of the transmission shaft (304); the outer side of the toothed ring (3051) is meshed with a driving toothed disc (3052); the outer side of the main through pipe (1) is provided with a ring groove seat (9); the driving toothed disc (3052) is rotatably connected to the inner wall of the ring groove seat (9); a micro motor (10) is fixedly installed on the left side of the ring groove seat (9); and the output end of the micro motor (10) is fixedly connected to the left side of the driving toothed disc (3052).

6. The anti-clogging turbine flowmeter according to claim 1, characterized in that: The diameter of the left end of the filter screen cylinder (307) is equal to the outer diameter of the aggregate end pipe (306), and the diameter of the right end of the filter screen cylinder (307) is greater than the outer diameter of the aggregate end pipe (306). The bottom of the aggregate end pipe (306) is connected to a slag discharge pipe (11), and a valve is movably installed on the outside of the slag discharge pipe (11). The filter screen cylinder (307) is a conical frustum structure.

7. The anti-clogging turbine flowmeter according to claim 1, characterized in that: The second cleaning member (308) comprises a second coupling shaft (3081) rotatably connected to the left end of the filter cylinder (307); the left end of the second coupling shaft (3081) is coaxially fixed to the right end of the transmission shaft (304); a mounting frame (3082) is sleeved on the outside of the second coupling shaft (3081); the left end diameter and the right end diameter of the mounting frame (3082) are respectively larger than the left end diameter and the right end diameter of the filter cylinder (307).

8. The anti-clogging turbine flowmeter according to claim 7, characterized in that: A sliding ring groove is provided on the inner right wall of the collecting end pipe (306), and the right side of the mounting frame (3082) is slidingly connected to the inner side of the sliding ring groove. Three mounting plates arranged in a circular array are fixedly connected to the inner side of the mounting frame (3082), and each mounting plate is fixed with a brush layer (3083) on the side facing the filter screen cylinder (307).

9. The anti-clogging turbine flowmeter according to claim 1, characterized in that: A turbine seat (12) is movably mounted inside the main through-tube (1), the top of the turbine seat (12) is rotatably connected to the bottom of the flow meter end (2), a drainage flange (13) is fixedly mounted on the right end of the main through-tube (1), and a second sealing gasket is fixedly connected to the inner side of the drainage flange (13).

Images