Pipe section type magnetic suspension fluid energy conversion power generation device of intelligent water meter

Abstract

The invention discloses a pipe section type magnetic suspension fluid energy conversion power generation device of an intelligent water meter, which comprises a water flow rectifier and two blocking frames sequentially fixed in a pipe section and an impeller positioned in the pipe section, magnet sheets are arranged on the edge of the impeller, a hollow shaft is arranged in the center of the impeller, a magnet ring is fixed on the inner side of the hollow shaft, and magnet blocks are arranged in the centers of the blocking frames. The impeller is slidably arranged on the connecting shaft through the hollow shaft, and a coil is wound around the iron core on the outer side of the pipe section. When the water meter is used, one end of the coil needs to be connected to an electric control main board of the water meter, water flows into the water flow rectifier through the pipe section, vibration generated when blades of the impeller rotate can be avoided through the water flow rectifier, the magnet pieces on the impeller rotate at a high speed along with the impeller, and in the process, the impeller moves between the two blocking frames along the connecting shaft; the coil outside the pipe section begins to cut magnetic lines, so that alternating-current output voltage is generated to supply power to the intelligent water meter, the size of a standby battery is reduced, follow-up maintenance is facilitated, and the power supply cost of the water meter is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of power supply for smart water meters, and in particular to a pipe-segment type magnetic suspension fluid energy conversion power generation device for a smart water meter. Background Art

[0002] In recent years, with the steady growth of the national economy and the continuous acceleration of urbanization, the concept and practice of smart cities have continued to develop. People's awareness of the scarcity of water resources has gradually increased, and water use control has become one of the goals of the country's formulation of relevant industry policies. To achieve this goal, relevant metering instruments need to have the functions of data analysis, remote operation, and remote metering. This has accelerated the demand for smart water meters in downstream industries, brought continuous market demand and good development opportunities for the production of smart water meters and their management systems, and brought the smart water meter industry into the best historical opportunity for rapid development.

[0003] At present, there are two types of water flow assisted power generation devices for water meters. One type uses an impeller to transmit power to the outside of the pipe section. The magnet and the generating coil are located outside the pipe, and the transmission shaft is sealed with a sealing ring. The other type uses a vortex impeller to drive the impeller to generate electricity by using the impulse of water flow. These two methods are large in size and do not contain rectifiers, voltage adapter modules, mechanical wear, poor sealing and other problems.

[0004] With the continuous increase in user experience, the functions of smart water meters are gradually increasing, and the demand for battery power supply is also increasing. At present, smart water meters usually use NB-IoT, Cat1 and other Internet of Things communication methods for data communication, and basically communicate once a day, with relatively simple functions. With the application of water meters for water quality parameter monitoring, water supply quality monitoring, leakage monitoring, water use identification and other functions, a single battery power supply will be difficult to meet the needs. Electromagnetic water meters with more accurate measurement require greater energy consumption to ensure operation. Simply equipping with large batteries is not only costly and bulky, but also has high maintenance costs in the later stage. This is also an important factor restricting the development of electromagnetic water meters. To this end, a pipe-type magnetic levitation fluid energy conversion power generation device for smart water meters is proposed as an auxiliary power supply for water meters. Summary of the invention

[0005] The purpose of the present application is to provide a pipe-segment type magnetic levitation fluid energy conversion power generation device for a smart water meter, so as to solve the problem that the existing smart water meter is difficult to meet the demand by using a single battery for power supply, and is equipped with a separate large battery, which is not only costly and bulky, but also has high subsequent maintenance costs.

[0006] In order to solve the above technical problems, the present application provides a pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter, comprising:

[0007] A water flow rectifier and two blocking frames and an impeller located in the pipe section are fixed in sequence, the edge of the impeller is provided with a magnet sheet, the center of the impeller is provided with a hollow shaft, a magnet ring is fixed on the inner side of the hollow shaft, a magnet block is provided at the center of the blocking frame, a connecting shaft is fixed between the two magnet blocks, the impeller is slidably arranged on the connecting shaft through the hollow shaft, the water flow rectifier is arranged close to the water inlet end of the pipe section, and the outer side of the pipe section located between the two blocking frames is equipped with a pair of iron cores through a clamping assembly, and a coil is wound around the iron core.

[0008] As a preferred embodiment, a pipe-segment type magnetic levitation fluid energy conversion power generation device for a smart water meter, the impeller includes four blades fixed on a hollow shaft, the top of each blade is connected by an arc plate, and the magnet sheet is located at the arc plate at the top of the blade.

[0009] As a preferred embodiment, a pipe segment type magnetic levitation fluid energy conversion power generation device for a smart water meter, the blocking frame includes a central axis, a plurality of connecting rods are fixed on the central axis, and a blocking ring fixed to the inside of the pipe segment is commonly fixed on each of the connecting rods, and the magnet block is fixed on the central axis.

[0010] What needs to be described in detail in the solution is a pipe-segment type magnetic levitation fluid energy conversion power generation device for a smart water meter, wherein the magnet block is arranged in a stepped shape on one side close to the connecting shaft.

[0011] As a preferred embodiment, a pipe segment type magnetic levitation fluid energy conversion power generation device of a smart water meter, the clamping assembly includes a first clamp and a second clamp arranged to fit the pipe segment, both ends of the first clamp and the second clamp are fixed with connecting plates, bolts are arranged on the connecting plates, and the iron core is fixed to the outside of the first clamp and the second clamp away from the pipe segment.

[0012] What needs to be further explained in detail in the scheme is a pipe-segment type magnetic levitation fluid energy conversion and power generation device for a smart water meter, wherein the outer sides of the first clamp and the second clamp are provided with mounting grooves, the iron core is fixed in the mounting grooves, a cover body is clamped on the mounting grooves, and a through hole is provided on the cover body for one end of the coil to pass through.

[0013] As a preferred embodiment, a pipe-segment type magnetic levitation fluid energy conversion power generation device of a smart water meter, wherein the water flow rectifier is a circular orifice plate water flow rectifier.

[0014] Compared with the prior art, the present invention provides a pipe-segment type magnetic levitation fluid energy conversion and power generation device for a smart water meter, comprising a water flow rectifier and two blocking frames fixed in sequence in the pipe segment and an impeller located in the pipe segment, the edge of the impeller is provided with a magnet sheet, the center of the impeller is provided with a hollow shaft, the inner side of the hollow shaft is fixed with a magnet ring, the center of the blocking frame is provided with a magnet block, a connecting shaft is fixed between the two magnet blocks, the impeller is slidably arranged on the connecting shaft via the hollow shaft, the water flow rectifier is arranged close to the water inlet end of the pipe segment, the outer side of the pipe segment located between the two blocking frames is provided with a pair of iron cores through a clamping assembly, and a coil is wound around the iron core. When in use, one end of the lead-out coil needs to be connected to the electronic control mainboard of the smart water meter through the energy collection module. Water flows through the pipe section and enters the water flow rectifier. The water flow rectifier can prevent the impeller blades from vibrating when the water flow drives the impeller to rotate. When the water flow in the pipe section drives the impeller to rotate, the magnet on the impeller also rotates at high speed. In this process, the impeller moves along the connecting shaft between the two blocking frames, and the coil located outside the pipe section begins to cut the magnetic lines of force, thereby generating an AC output voltage to power the smart water meter, reducing the volume of the backup battery, facilitating subsequent maintenance and reducing the power supply cost of the water meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without inventiveness.

[0016] Figure 1 A schematic diagram of the structure of a pipe-segment type magnetic suspension fluid energy conversion power generation device for a smart water meter provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of a blocking frame structure provided in an embodiment of the present application;

[0018] Figure 3 A schematic diagram of an impeller structure provided in an embodiment of the present application;

[0019] Figure 4 A schematic diagram of the installation of a first clamp, a second clamp and a pipe section provided in an embodiment of the present application;

[0020] Figure 5 A schematic diagram of the structure of a water flow rectifier provided in an embodiment of the present application;

[0021] In the figure: 1, pipe section; 2, water flow rectifier; 3, blocking frame; 4, impeller; 5, magnet sheet; 6, hollow shaft; 7, magnet ring; 8, magnet block; 9, connecting shaft; 10, iron core; 11, coil; 12, blade; 120, arc plate; 13, central axis; 14, connecting rod; 15, blocking ring; 16, first clamp; 17, second clamp; 18, connecting plate; 19, bolt; 20, mounting groove; 21, cover; 22, through hole. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] The core of this application is to provide a pipe-segment type magnetic levitation fluid energy conversion power generation device for a smart water meter, which solves the problem that the existing smart water meter is difficult to meet the demand with a single battery power supply and is equipped with a separate large battery, which is not only costly and bulky, but also has high subsequent maintenance costs.

[0024] Figure 1 This is a schematic diagram of the structure of a pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter provided in an embodiment of the present application. Figure 2 A schematic diagram of a blocking frame structure provided in an embodiment of the present application is shown in FIG. Figure 3 A schematic diagram of an impeller structure provided in an embodiment of the present application is shown in FIG. Figure 3 A schematic diagram of an impeller structure provided in an embodiment of the present application is shown in FIG. Figure 4 This is a schematic diagram of the installation of a first clamp, a second clamp and a pipe section provided in an embodiment of the present application. Figure 5 A schematic diagram of a water flow rectifier structure provided in an embodiment of the present application is shown in FIG. Figures 1 to 4 shown.

[0025] Example 1

[0026] A pipe-segment type magnetic suspension fluid energy conversion power generation device for a smart water meter, comprising a water flow rectifier 2 fixed in a pipe segment 1 in sequence, two blocking frames 3 fixed in the pipe segment 1, and an impeller 4 located in the pipe segment 1, wherein a magnet sheet 5 is arranged at the edge of the impeller 4, the magnet sheet 5 is arranged in an arc shape to match the inside of the pipe segment 1, the number of the magnet sheets 5 corresponds to the number of blades 12 of the impeller 4, a hollow shaft 6 is arranged at the center of the impeller 4, a magnet ring 7 is fixed inside the hollow shaft 6, a magnet block 8 is arranged at the center of the blocking frame 3, and a connecting shaft is fixed between the two magnet blocks 8 9, the impeller 4 is slidably arranged on the connecting shaft 9 through the hollow shaft 6. When water flows to the impeller 4 through the water flow rectifier 2, the impeller 4 can be rotated and moved between the two blocking frames 3 along the connecting shaft 9. The support and limit of the impeller 4 are realized by the cooperation of the blocking frame 3 and the connecting shaft 9. The water flow rectifier 2 is arranged near the water inlet end of the pipe section 1. The water flow rectifier 2 can change the dynamic pressure distribution of the water flow, hinder the propagation of turbulent flow, thereby improving the stability of the water flow, ensuring the rotation stability of the blades 12 on the impeller 4, and avoiding affecting the metering accuracy of the water meter. The magnet sheet 5 is completely enclosed in the pipe section 1 and has no electrical connection with the outside; the power transmission of the impeller 4 is only in the pipe section 1, and there is no leakage point for transmitting the power to the external power generation through the sealing ring; the external circuit part and the electrical line part are not in contact with the water flow, and the protection level of IP68 can be achieved.

[0027] The outer side of the pipe section 1 between the two blocking frames 3 is installed with a pair of iron cores 10 through a clamping assembly. The iron cores 10 are wound with coils 11. The coils 11 are located outside the pipe section 1 and isolated from the water flow inside the pipe section 1. In actual design, multiple groups of iron cores 10 can be set according to actual conditions. Two iron cores 10 form a group. One group of iron cores 10 is set on a clamping assembly. When multiple groups of iron cores 10 are set, the coils on each group of iron cores 10 are connected in series, and the remaining heads and tails serve as the output ends of the power supply, thereby forming a single-phase AC generator. When multiple groups of coils 11 are used, each group of coils 11 is symmetrically distributed to reduce vibration. In order to increase the magnetic flux, silicon steel sheets can be embedded in the coils 11.

[0028] During operation, the water flow direction is perpendicular to the impeller 4, and the hollow shaft 6 coincides with the central axis of the pipe section 1. The arrangement of the magnet ring 7 and the magnet block 8 can form a flow field with a symmetrical structure, which can further ensure that the impeller 4 can operate stably without vibration when it rotates. The material of the impeller 4 meets the drinking water hygiene standards. The installed magnet pieces 5 can be combined into a symmetrical multi-pole magnet, which cooperates with the external coil 11 to form an AC generator.

[0029] The pipe section 1 in this embodiment is made of non-metallic, non-ferromagnetic materials, and its pressure resistance meets the water meter pressure level. The threads at both ends of the pipe section 1 meet the national standard requirements for water meter pipe connections, and can be connected to the water meter. The pipe section 1 can also be used as a component in the water meter and integrated into the water meter pipe section.

[0030] Example 2

[0031] On the basis of Example 1, a pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter is provided, wherein the impeller 4 includes four blades 12 fixed on a hollow shaft 6, the tops of the blades 12 are connected by an arc plate 120, and the magnet sheet 5 is embedded in the arc plate 120 at the top of the blade 12. When the impeller 4 rotates, no eccentricity or vibration occurs.

[0032] On the basis of Example 1, a pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter, the blocking frame 3 includes a central axis 13, a plurality of connecting rods 14 are fixed on the central axis 13, and a blocking ring 15 fixed to the inside of the pipe segment 1 is fixed on each connecting rod 14, and a magnet block 8 is fixed on the central axis 13. The magnet ring 7 and the magnet block 8 can be designed using permanent magnetic suspension technology, and when the water flow rate is greater than the set range, the hollow shaft 6 is suspended on the connecting shaft 9 to rotate, reducing the wear on the hollow shaft 6.

[0033] In this embodiment, a pipe segment type magnetic suspension fluid energy conversion power generation device of a smart water meter is provided, and the magnet block 8 is arranged in a stepped shape on one side close to the connecting shaft 9. When the water flows, the impeller 4 is pushed by the water flow and moves in the direction of the water flow, but due to the effect of the magnetic field, it will hover at a certain position and rotate. At the same time, the stepped arrangement on one side of the magnet block 8 can reduce the wear between the hollow shaft 6 and the magnet block 8.

[0034] Example 3

[0035] On the basis of Example 1, a pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter, the clamping assembly includes a first clamp 16 and a second clamp 17 set in contact with the pipe segment 1, both ends of the first clamp 16 and the second clamp 17 are fixed with a connecting plate 18, the connecting plate 18 is provided with a bolt 19, and the iron core 10 is fixed to the outside of the first clamp 16 and the second clamp 17 away from the pipe segment 1. When in use, the iron core 10 is first installed, the coil 11 is wound, and then the first clamp 16 and the second clamp 17 are attached to the outer periphery of the pipe segment 1, and then the first clamp 16 and the second clamp 17 are fixed to the outer periphery of the pipe segment 1 by the bolt 19. This structure can be applied to the installation of pipe segments with different calibers.

[0036] On the basis of Example 3, a pipe-segment type magnetic suspension fluid energy conversion power generation device for a smart water meter is provided, the outer sides of the first clamp 16 and the second clamp 17 are provided with a mounting groove 20, the iron core 10 is fixed in the mounting groove 20, a cover body 21 is clamped on the mounting groove 20, the clamping mode of the cover body 21 is similar to the clamping connection of the battery cover on a toy, and a through hole 22 for one end of the coil 11 to penetrate is provided on the cover body 21. The iron core 10 and the coil 11 are arranged by the mounting groove 20 in conjunction with the cover body 21, so that external dust and the like can be prevented from entering the coil 11, and the iron core 10 and the coil 11 can be easily repaired and replaced.

[0037] Based on Example 1, a pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter, the water flow rectifier 2 can be a circular hole plate water flow rectifier, and the structure of the water flow rectifier 2 is as follows Figure 4 shown.

[0038] A pipe-segment type magnetic levitation fluid energy conversion and power generation device for a smart water meter provided in an embodiment of the present application comprises a water flow rectifier 2 and two blocking frames 3 fixed in sequence in a pipe segment 1 and an impeller 4 located in the pipe segment 1, a magnet sheet 5 is arranged on the edge of the impeller 4, a hollow shaft 6 is arranged in the center of the impeller 4, a magnet ring 7 is fixed on the inner side of the hollow shaft 6, a magnet block 8 is arranged in the center of the blocking frame 3, a connecting shaft 9 is fixed between the two magnet blocks 8, the impeller 4 is slidably arranged on the connecting shaft 9 via the center axis, the water flow rectifier 2 is arranged close to the water inlet end of the pipe segment 1, and a pair of iron cores 10 are installed on the outer side of the pipe segment 1 between the two blocking frames 3 through a clamping assembly, and a coil 11 is wound around the iron core 10. When in use, one end of the lead-out coil 11 needs to be connected to the electronic control mainboard of the smart water meter through the energy collection module. Water flows through the pipe section 1 and enters the water flow rectifier 2. The water flow rectifier 2 can prevent the blades 12 on the impeller 4 from vibrating when the water flow drives the impeller 4 to rotate. When the water flow in the pipe section 1 drives the impeller 4 to rotate, the magnet sheet 5 on the impeller 4 also rotates at high speed. During this process, the impeller 4 moves between the two blocking frames 3 along the connecting shaft 9, and the coil located outside the pipe section 1 begins to cut the magnetic lines of force, thereby generating an AC output voltage to power the smart water meter, reducing the volume of the backup battery, facilitating subsequent maintenance and reducing the power supply cost of the water meter.

[0039] The energy collection module can adjust the AC power of different frequencies into the DC power required by the water meter. Its main components are: rectifier and filter circuit, overvoltage protection circuit, buck / boost module, and energy storage element. The rectifier and filter circuit converts the alternating current into pulsating DC current. The overvoltage protection circuit suppresses the damage of the excessive induced electromotive force to the buck / boost module when it is impacted by a large water flow and causes an overvoltage situation. The buck / boost module is to efficiently convert the energy of the changing DC input voltage into the required voltage amplitude or constant current output by controlling the comparison circuit. The output voltage in the present invention is 3.66V. When the output current is greater than the set maximum current, the energy collection module operates in constant current mode. When the output current is less than the set maximum current, the output is changed to constant voltage output. The energy storage element adopts lithium-ion capacitors or supercapacitors, rechargeable batteries, etc.

[0040] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art disclosed in the present application. The specification and examples are to be regarded as exemplary only, and the true scope of the present application is indicated by the claims.

[0041] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A pipe segment type magnetic suspension fluid energy conversion power generation device for a smart water meter, characterized in that: include: A water flow rectifier (2) and two blocking frames (3) are fixed in sequence in a pipe section (1) and an impeller (4) is located in the pipe section (1); a magnet sheet (5) is arranged on the edge of the impeller (4); a hollow shaft (6) is arranged at the center of the impeller (4); a magnet ring (7) is fixed inside the hollow shaft (6); a magnet block (8) is arranged at the center of the blocking frame (3); a connecting shaft (9) is fixed between the two magnet blocks (8); the impeller (4) is slidably arranged on the connecting shaft (9) via the hollow shaft (6); the water flow rectifier (2) is arranged close to the water inlet end of the pipe section (1); a pair of iron cores (10) are installed on the outer side of the pipe section (1) between the two blocking frames (3) through a clamping assembly; a coil (11) is wound around the iron core (10).

2. The pipe segment type magnetic suspension fluid energy conversion power generation device of the smart water meter according to claim 1 is characterized in that: The impeller (4) comprises four blades (12) fixed on a hollow shaft (6), the tops of the blades (12) being connected via an arc-shaped plate (120), and the magnet sheet (5) is located at the arc-shaped plate (120) at the top of the blades (12).

3. The pipe segment type magnetic suspension fluid energy conversion power generation device of the smart water meter according to claim 1 is characterized in that: The blocking frame (3) comprises a central axis (13), a plurality of connecting rods (14) are fixed on the central axis (13), and a blocking ring (15) fixed to the inside of the pipe section (1) is commonly fixed on each of the connecting rods (14), and the magnet block (8) is fixed on the central axis (13).

4. The pipe segment type magnetic suspension fluid energy conversion power generation device of the smart water meter according to claim 3 is characterized in that: The magnet block (8) is arranged in a stepped shape on one side close to the connecting shaft (9).

5. The pipe segment type magnetic suspension fluid energy conversion power generation device of the smart water meter according to claim 1 is characterized in that: The clamping assembly comprises a first clamp (16) and a second clamp (17) which are arranged to fit the pipe section (1), and connecting plates (18) are fixed at both ends of the first clamp (16) and the second clamp (17), and bolts (19) are arranged on the connecting plates (18). The iron core (10) is fixed to the outer side of the first clamp (16) and the second clamp (17) away from the pipe section (1).

6. The pipe segment type magnetic suspension fluid energy conversion power generation device of the smart water meter according to claim 5 is characterized in that: The outer sides of the first clamp (16) and the second clamp (17) are provided with mounting grooves (20), the iron core (10) is fixed in the mounting grooves (20), a cover body (21) is clamped on the mounting grooves (20), and the cover body (21) is provided with a through hole (22) for one end of the coil (11) to pass through.

7. The pipe segment type magnetic suspension fluid energy conversion power generation device of the smart water meter according to claim 1 is characterized in that: The water flow rectifier (2) is a circular hole plate water flow rectifier.

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