Water supply network system and fluid-based power supply device

Abstract

The present invention discloses a water supply network system and a fluid-based power supply device, the power supply device comprising: a shell, a liquid inlet channel and a liquid outlet channel are arranged inside the shell, the liquid inlet of the liquid inlet channel and the liquid outlet of the liquid outlet channel are both located on the first end wall of the shell; a water flow bin fixedly connected to the shell, the liquid inlet of the water flow bin is communicated with the liquid outlet of the liquid inlet channel, and the liquid outlet of the water flow bin is communicated with the liquid inlet of the liquid outlet channel; a power generation component, the power generation component is arranged in the water flow bin, and the flow of fluid in the water flow bin drives the power generation component to generate electricity. The power supply device provided by the present invention utilizes the kinetic energy of the fluid in the pipeline, and realizes power generation through energy conversion, and is simple to operate, and only requires opening a through hole in the pipeline to form a water outlet and water inlet cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation, and more specifically, to a water supply pipe network system and a fluid-based power supply device. Background Art

[0002] The intelligent transformation of water supply pipe networks is increasingly valued by people. During the transformation, it is necessary to install various sensors and signal acquisition, processing, and transmission equipment on the pipes. All of these equipment need the support of the power system. However, many pipes are buried underground. If battery technology is used, there are several disadvantages: 1. The battery needs to be replaced regularly; 2. The underground environment is humid and heavy. If the battery is replaceable, it is difficult to handle the sealing technology well, which can easily lead to battery power loss. If solar and wind power generation is used, there are also several disadvantages: 1. The ground conditions above the pipe network are uncertain, such as the pipe network under roads and buildings, which makes construction difficult; 2. The cost is high; 3. The power supply is unstable and the battery capacity needs to be increased. If the mains electricity is used directly, the on-site conditions may not be permitted, and the amount of work is usually large.

[0003] To sum up, how to effectively solve the problem of power supply in the intelligent transformation of water supply pipelines is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, the first object of the present invention is to provide a fluid-based power supply device, the structural design of which can effectively solve the power supply problem in the intelligent transformation of the water supply network. The second object of the present invention is to provide a water supply network system including the above-mentioned power supply device.

[0005] In order to achieve the above first object, the present invention provides the following technical solutions:

[0006] A fluid-based power supply device, comprising:

[0007] A shell, wherein a liquid inlet channel and a liquid outlet channel are arranged inside the shell, and the liquid inlet of the liquid inlet channel and the liquid outlet of the liquid outlet channel are both located on the first end wall of the shell;

[0008] A water flow chamber fixedly connected to the housing, wherein the liquid inlet of the water flow chamber is communicated with the liquid outlet of the liquid inlet channel, and the liquid outlet of the water flow chamber is communicated with the liquid inlet of the liquid outlet channel;

[0009] A power generation component is arranged in the water flow chamber, and the flow of fluid in the water flow chamber drives the power generation component to generate electricity.

[0010] Preferably, in the above-mentioned fluid-based power supply device, a baffle extending along an arc shape is also fixed on the first end wall of the shell, the baffle is arranged around the liquid inlet of the liquid inlet channel, and a fluid inlet is formed between the two ends of the baffle;

[0011] The height of the baffle gradually decreases from the middle to the two ends.

[0012] Preferably, in the above-mentioned fluid-based power supply device, a side of the liquid inlet of the liquid inlet channel close to the liquid outlet of the liquid outlet channel is a first side and a side away from the liquid outlet of the liquid outlet channel is a second side, and the baffle extends from the first side of the liquid inlet of the liquid inlet channel to the second side;

[0013] The liquid inlet section of the liquid inlet channel gradually inclines from its liquid inlet port toward a side close to the baffle, and the inclination direction of the liquid outlet section of the liquid outlet channel is consistent with the inclination direction of the liquid inlet section of the liquid inlet channel.

[0014] Preferably, in the above-mentioned fluid-based power supply device, after the power supply device is connected to the fluid pipeline, the liquid inlet of the liquid inlet channel and the liquid outlet of the liquid outlet channel are staggered in the axial direction of the fluid pipeline, and the liquid inlet of the liquid inlet channel is located upstream of the liquid outlet of the liquid outlet channel, and the baffle is located downstream of the liquid inlet of the liquid inlet channel;

[0015] The liquid inlet of the liquid inlet channel and the liquid outlet of the liquid outlet channel are staggeredly distributed in the circumferential direction of the fluid pipeline.

[0016] Preferably, in the above-mentioned fluid-based power supply device, the power generation component comprises:

[0017] A rotor rotatably disposed in the water flow chamber, the rotor comprising an impeller, a wheel shaft fixedly connected to the impeller, and a magnet disposed on the inner side of an annular support wall of the impeller;

[0018] A stator is fixedly connected to the water flow chamber, wherein the stator includes at least one coil, and current is generated in the coil when the rotor rotates.

[0019] Preferably, in the above-mentioned fluid-based power supply device, the stator shell of the stator divides the water flow chamber into two relatively independent cavities, and the rotor and the coil are respectively located in the two cavities.

[0020] Preferably, in the above-mentioned fluid-based power supply device, the stator shell of the stator comprises a raised portion and an annular connecting portion, the coil is located in the raised portion, and the raised portion as a whole extends into the annular supporting wall of the impeller;

[0021] The annular connecting portion of the stator shell is fixedly connected to the chamber wall of the water flow chamber through a plurality of bolts or a plurality of screws, and a first sealing groove and a positioning column are arranged on the annular connecting portion of the stator shell.

[0022] Preferably, in the above fluid-based power supply device, the wheel axle is rotationally connected to the stator housing.

[0023] A water supply network system, comprising a fluid pipeline and any one of the power supply devices described above;

[0024] The fluid pipeline is provided with an open hole flow diverter, and the power supply device is fixedly connected to the open hole flow diverter.

[0025] When the fluid-based power supply device provided by the above embodiment is applied, the fluid in the fluid pipeline first enters the liquid inlet channel of the shell, and then flows out of the liquid inlet channel of the shell and enters the water flow chamber. The fluid flows in the water flow chamber to drive the power generation component to generate electricity, and the fluid in the water flow chamber is discharged through the liquid outlet channel of the shell.

[0026] As can be seen from the above, the power supply device provided by the present invention utilizes the kinetic energy of the fluid in the pipeline to achieve power generation through energy conversion, and is easy to operate. It only requires opening a through hole in the pipeline to form a water outlet and water inlet circulation.

[0027] In order to achieve the second objective, the present invention further provides a water supply network system, which includes any of the above power supply devices. Since the above power supply device has the above technical effects, the water supply network system having the power supply device should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 An explosion diagram of the connection between the power supply device and the fluid pipeline provided in an embodiment of the present invention;

[0030] Figure 2 An exploded diagram of a power supply device provided in an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the flow direction of the fluid in the power supply device provided by an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the flow direction of the fluid in the fluid pipeline and the power supply device provided in an embodiment of the present invention;

[0033] Figure 5 A side view of a power supply device provided by an embodiment of the present invention;

[0034] Figure 6 for Figure 5 Sectional view along AA;

[0035] Figure 7 A schematic diagram of the structure of a housing and a water flow chamber provided in an embodiment of the present invention;

[0036] Figure 8 A schematic diagram of the structure of a rotor provided in an embodiment of the present invention;

[0037] Fig. 9 A schematic diagram of the structure of a stator provided in an embodiment of the present invention;

[0038] Fig.10 A cross-sectional view of the assembled stator and rotor provided in an embodiment of the present invention.

[0039] exist Figure 1-10 middle:

[0040] Shell 10, liquid inlet 11 of the liquid inlet channel, liquid outlet 12 of the liquid outlet channel, baffle 13, water flow chamber 14, screw hole 15, second sealing groove 16;

[0041] Rotor-20, impeller 21, magnet 22, axle 23;

[0042] Stator 30, coil 31, bearing 32, positioning column 33, first sealing groove 34;

[0043] Power management module-40;

[0044] End cap 50, wire 51;

[0045] Opening diverter 60;

[0046] Fluid conduit 70;

[0047] Screw 80. DETAILED DESCRIPTION

[0048] The first object of the present invention is to provide a fluid-based power supply device, the structural design of which can effectively solve the power supply problem in the intelligent transformation of the water supply network. The second object of the present invention is to provide a water supply network system including the above-mentioned power supply device.

[0049] 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.

[0050] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left" and "right" indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0051] See also Figure 1-Figure 10 The fluid-based power supply device provided by the present invention includes a shell 10, a water flow chamber 14 and a power generation component.

[0052] The housing 10 is provided with a liquid inlet channel and a liquid outlet channel, and the liquid inlet of the liquid inlet channel and the liquid outlet 12 of the liquid outlet channel are both located on the first end wall of the housing 10. The liquid outlet of the liquid inlet channel and the liquid inlet of the liquid outlet channel can both be located on the second end wall of the housing 10.

[0053] The water flow chamber 14 is fixedly connected to the housing 10, the liquid inlet of the water flow chamber 14 is connected to the liquid outlet of the liquid inlet channel, and the liquid outlet of the water flow chamber 14 is connected to the liquid inlet of the liquid outlet channel. In other words, the fluid enters the water flow chamber 14 after passing through the liquid inlet channel of the housing 10 and flows in the water flow chamber 14, and the fluid in the water flow chamber 14 is discharged through the liquid outlet channel of the housing 10.

[0054] The water flow chamber 14 may be fixedly connected to the second end wall of the shell 10 , or the water flow chamber 14 may be fixedly connected to other parts of the shell 10 .

[0055] The power generation component is arranged in the water flow chamber 14, and the flow of fluid in the water flow chamber 14 drives the power generation component to generate electricity. The fluid entering the water flow chamber 14 through the liquid inlet channel of the housing 10 drives the power generation component to move during the flow of the water flow chamber 14, so that the power generation component generates electricity.

[0056] When the fluid-based power supply device provided by the above-mentioned embodiment is applied, the fluid in the fluid pipeline 70 first enters the liquid inlet channel of the shell 10, and then flows out of the liquid inlet channel of the shell 10 and enters the water flow chamber 14. The fluid flows in the water flow chamber 14 to drive the power generation component to generate electricity, and the fluid in the water flow chamber 14 is discharged through the liquid outlet channel of the shell 10.

[0057] As can be seen from the above, the power supply device provided by the present invention utilizes the kinetic energy of the fluid in the pipeline to achieve power generation through energy conversion, and is easy to operate. It only requires opening a through hole in the pipeline to form a water outlet and water inlet circulation.

[0058] like Figure 5 and Figure 7 As shown, in a specific embodiment, a baffle 13 extending along an arc is fixed to the first end wall of the housing 10, and the baffle 13 is arranged around the liquid inlet 11 of the liquid inlet channel, and a fluid inlet is formed between the two ends of the baffle 13. The baffle 13 is used to guide the water flow so that the water flow enters the liquid inlet 11 of the liquid inlet channel. The baffle 13 extends along an arc, and the concave surface of the baffle 13 faces the direction of the water flow in the pipeline, generating thrust under the action of the fluid power in the pipeline.

[0059] The height of the baffle 13 gradually decreases from the middle to the two ends. In other words, the middle of the baffle 13 is higher than the two ends of the baffle 13. The height of the baffle 13 refers to the distance between the end of the baffle 13 away from the first end wall and the first end wall. This arrangement can make the fluid flow smooth and will not cause vortices.

[0060] The end surface of the baffle 13 away from the first end wall may be a smooth curved surface or a flat surface, which is not limited here.

[0061] Further, the side of the liquid inlet 11 of the liquid inlet channel close to the liquid outlet 12 of the liquid outlet channel is the first side and the side away from the liquid outlet 12 of the liquid outlet channel is the second side, and the baffle 13 extends from the first side of the liquid inlet 11 of the liquid inlet channel to the second side. In other words, the central angle of the baffle 13 along the arc extension length is α, 90°≤α≤180°. The line connecting the center of the liquid inlet 11 of the liquid inlet channel and the center of the liquid outlet 12 of the liquid outlet channel is the first straight line, and the baffle 13 is located on one side of the first straight line.

[0062] In addition, after the power supply device is connected to the fluid pipeline 70, the liquid inlet 11 of the liquid inlet channel and the liquid outlet 12 of the liquid outlet channel are staggered in the axial direction of the fluid pipeline 70, and the liquid inlet 11 of the liquid inlet channel is located upstream of the liquid outlet 12 of the liquid outlet channel, and the baffle 13 is located downstream of the liquid inlet 11 of the liquid inlet channel. In this arrangement, the concave surface of the baffle 13 faces the direction of the water flow in the pipeline, and generates thrust under the action of the fluid power in the pipeline.

[0063] The liquid inlet 11 of the liquid inlet channel and the liquid outlet 12 of the liquid outlet channel are also staggered in the circumferential direction of the fluid pipeline 70. In this way, the fluids at the liquid inlet 11 of the liquid inlet channel and the liquid outlet 12 of the liquid outlet channel can be prevented from influencing each other.

[0064] like Figure 3As shown, the liquid inlet section of the liquid inlet channel gradually tilts from its liquid inlet to the side close to the baffle 13, and the inclination direction of the liquid outlet section of the liquid outlet channel is the same as the inclination direction of the liquid inlet section of the liquid inlet channel. After the power supply device is connected to the fluid pipeline 70, the liquid inlet section of the liquid inlet channel gradually tilts from its liquid inlet to the side that conforms to the flow direction of the fluid in the pipeline, and the liquid outlet section of the liquid outlet channel gradually tilts from its liquid outlet to the side that is opposite to the flow direction of the fluid in the pipeline. Such a configuration facilitates the fluid to enter the liquid inlet 11 of the liquid inlet channel, and the flow direction of the fluid at the liquid outlet 12 of the liquid outlet channel is consistent with the flow direction of the fluid in the pipeline, so that a "boat suction effect" will be generated under the action of the fluid in the pipeline, promoting the flow of the fluid in the entire power supply device.

[0065] In the above embodiment, the length of the inlet section of the inlet channel can be half, one third or one quarter of the entire inlet channel, etc., which is not limited here. The outlet section of the outlet channel can be half, one third or one quarter of the entire outlet channel, etc., which is not limited here.

[0066] The liquid inlet channel and the liquid outlet channel may be rigid channels or plastically deformable pipes, which are not limited here.

[0067] like Figure 2-10 As shown, the power generation assembly includes a rotor 20 and a stator 30, and the rotor 20 is rotatably arranged in the water flow chamber 14, and the rotor 20 includes an impeller 21, a wheel shaft 23 and a magnet 22. The impeller 21 includes an annular support wall and a plurality of blades, and the plurality of blades are circumferentially distributed on the outer side of the annular support wall. The wheel shaft 23 is fixedly connected to the impeller 21. Specifically, a connecting plate is fixed between the wheel shaft 23 and the annular support wall, and the wheel shaft 23 and the annular support wall are both fixedly connected to the connecting plate. The magnet 22 is arranged on the inner side of the annular support wall, and the impeller 21 drives the magnet 22 to rotate when it rotates. The magnet 22 can be an annular magnet, which is fixedly connected to the inner wall of the annular support wall. The magnet 22 can also be a plurality of magnetic sheets, and the plurality of magnetic sheets are circumferentially distributed along the inner wall of the annular support wall.

[0068] The stator 30 is fixedly connected to the water flow chamber 14. The stator 30 includes at least one coil 31, and the number of coils 31 is preferably multiple, and the multiple coils 31 are evenly distributed along the circumference of the stator 30. The multiple coils 31 are all located inside the annular support wall, and when the magnet 22 rotates with the impeller 21, current is generated in the coil 31, that is, when the rotor 20 rotates, current is generated in the coil 31.

[0069] In order to ensure the separation of water and electricity, the stator shell of the stator 30 divides the water flow chamber 14 into two relatively independent cavities, and the rotor 20 and the coil 31 are respectively located in the two cavities. The cavity where the coil 31 is placed is a sealed cavity. In this way, the rotor 20 and the coil 31 are separated by the stator shell, and the stator shell can prevent the fluid from entering the cavity of the coil 31 to ensure power supply safety.

[0070] like Fig. 9 As shown, further, the stator shell includes a protrusion and an annular connecting portion, the coil 31 is located in the protrusion, and the protrusion as a whole extends into the annular supporting wall of the impeller 21. The coil 31 is located on the inner side of the magnet 22, and the coil 31 and the magnet 22 are arranged oppositely, so that when the impeller 21 drives the magnet 22 to rotate, current is generated in the coil 31. The coil 31 and the magnet 22 are separated by the stator shell.

[0071] Of course, the stator housing may also be in other shapes, which are not limited here.

[0072] Specifically, the annular connection portion of the stator case is fixedly connected to the chamber wall of the water flow chamber 14 by a plurality of bolts or a plurality of screws 80. The water flow chamber 14 includes a chamber body and an end cover 50, and the end cover 50 is used to block the opening of the chamber body. The chamber body is provided with a screw hole 15, and the annular connection portion of the stator case is sandwiched between the chamber body and the end cover 50, so that the chamber body, the end cover 50 and the annular connection portion are fixedly connected by a plurality of bolts or a plurality of screws 80 at the same time.

[0073] In order to ensure sealing, a first sealing groove 34 is provided on the annular connection portion of the stator shell, and a sealing ring is provided in the first sealing groove 34 to ensure sealing between the stator shell and the end cover 50. The coil 31 is located in the cavity formed between the stator shell and the end cover 50. The impeller 21 is located in the cavity formed between the stator shell and the bin body. A second sealing groove 16 can be provided on the bin body, and a sealing ring is provided in the second sealing groove 16 to ensure sealing between the stator shell and the bin body.

[0074] A positioning column 33 may also be provided on the stator shell, and a positioning hole cooperating with the positioning column 33 may be provided on the bin body or the end cover 50, so that the positioning of the stator shell is achieved through the cooperation between the positioning column 33 and the positioning hole.

[0075] The housing 10 and the tank body of the water flow tank 14 can be an integral structure, which is not limited here.

[0076] In order to limit the displacement of the rotor 20, the wheel axle 23 is rotatably connected to the stator housing. The wheel axle 23 and the stator housing can be rotatably connected via a bearing 32. An axial hole for mounting the wheel axle 23 is provided on the raised portion of the stator housing.

[0077] Considering that the flow rate and pressure of the fluid in the fluid pipeline 70 are both fluctuating, the power supply device may further include a power management module 40, which is electrically connected to the coil 31 and can output a stable power supply after voltage regulation and rectification. It also includes a wire 51 electrically connected to the power management module 40 and used to output current.

[0078] Based on the power supply device provided in the above embodiment, the present invention also provides a water supply network system, which includes any one of the power supply devices in the above embodiment. Since the water supply network system adopts the power supply device in the above embodiment, please refer to the above embodiment for the beneficial effects of the water supply network system. The power supply device can mainly power the sensors, signal acquisition, processing, transmission equipment and other electrical components of the water supply network system.

[0079] like Figure 1 and Figure 4 As shown, a perforated flow divider 60 is provided on the fluid pipeline 70, and the power supply device is fixedly connected to the perforated flow divider 60. The perforated flow divider 60 includes a clamp and a fixing member, and a mounting hole is provided on the fixing member. The housing 10 of the power supply device can be directly fixed in the mounting hole, and the housing 10 of the power supply device can be snap-connected, screwed, etc. with the mounting hole.

[0080] A through hole is provided on the fluid pipeline 70, and the through hole is opposite to the mounting hole. After the housing 10 of the power supply device is fixed in the mounting hole, the first end wall of the housing 10 is opposite to the through hole on the fluid pipeline 70. The water supply network system only needs to open a through hole on the fluid pipeline 70 to form a water inlet and outlet cycle, which greatly facilitates the installation and construction.

[0081] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0082] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A fluid-based power supply device, characterized in that: include: A shell (10), wherein a liquid inlet channel and a liquid outlet channel are provided inside the shell (10), and a liquid inlet (11) of the liquid inlet channel and a liquid outlet (12) of the liquid outlet channel are both located on a first end wall of the shell (10); A baffle (13) extending in an arc shape is also fixed on the first end wall of the housing (10), the baffle (13) is arranged around the liquid inlet (11) of the liquid inlet channel, and a fluid inlet is formed between the two ends of the baffle (13); The height of the baffle (13) gradually decreases from the middle to the two ends; A side of the liquid inlet (11) of the liquid inlet channel close to the liquid outlet (12) of the liquid outlet channel is a first side, and a side away from the liquid outlet (12) of the liquid outlet channel is a second side, and the baffle (13) extends from the first side of the liquid inlet (11) of the liquid inlet channel to the second side; The liquid inlet section of the liquid inlet channel gradually inclines from its liquid inlet port toward a side close to the baffle (13), and the inclination direction of the liquid outlet section of the liquid outlet channel is the same as the inclination direction of the liquid inlet section of the liquid inlet channel; After the power supply device is connected to the fluid pipeline, the liquid inlet (11) of the liquid inlet channel and the liquid outlet (12) of the liquid outlet channel are staggered in the axial direction of the fluid pipeline, and the liquid inlet (11) of the liquid inlet channel is located upstream of the liquid outlet (12) of the liquid outlet channel, and the baffle (13) is located downstream of the liquid inlet (11) of the liquid inlet channel; The liquid inlet (11) of the liquid inlet channel and the liquid outlet (12) of the liquid outlet channel are staggeredly distributed in the circumferential direction of the fluid pipeline; a water flow chamber (14) fixedly connected to the housing (10), the liquid inlet of the water flow chamber (14) being in communication with the liquid outlet of the liquid inlet channel, and the liquid outlet of the water flow chamber (14) being in communication with the liquid inlet of the liquid outlet channel; A power generation component, the power generation component is arranged in the water flow chamber (14), and the flow of fluid in the water flow chamber (14) drives the power generation component to generate electricity; The power generation assembly comprises: a rotor (20) rotatably disposed in the water flow chamber (14), the rotor (20) comprising an impeller (21), a wheel shaft (23) fixedly connected to the impeller (21), and a magnet (22) disposed inside an annular support wall of the impeller (21); a stator (30) fixedly connected to the water flow chamber (14), wherein the stator (30) comprises at least one coil (31), and when the rotor (20) rotates, current is generated in the coil (31); The stator shell of the stator (30) divides the water flow chamber (14) into two relatively independent cavities, and the rotor (20) and the coil (31) are respectively located in the two cavities; The stator shell comprises a raised portion and an annular connecting portion, the coil (31) is located in the raised portion, and the raised portion as a whole extends into the annular supporting wall of the impeller (21); The annular connection portion of the stator shell is fixedly connected to the wall of the water flow chamber (14) by means of a plurality of bolts or a plurality of screws (80), and a first sealing groove (34) and a positioning column (33) are provided on the annular connection portion of the stator shell; the wheel shaft (23) is rotationally connected to the stator shell.

2. A water supply network system, characterized in that: It comprises a fluid pipeline and the power supply device as claimed in claim 1; a perforated flow divider (60) is arranged on the fluid pipeline, and the power supply device is fixedly connected to the perforated flow divider (60).

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