Efficient self-generating device

Abstract

The utility model relates to an efficient self-power-generating device which comprises an upstream machine shell, a downstream machine shell, a guide vane arranged in the upstream machine shell in the water flow direction and a shaft supporting seat arranged in the downstream machine shell, a rotating shaft is connected between the guide vane and the shaft supporting seat, and an impeller is connected to the rotating shaft. Guide vanes rotating in one direction are arranged on the inner walls of the guide vanes; the inner wall of the water inlet of the impeller is provided with blades opposite to the rotating direction of the guide blades on the inner wall of the guide vane, and rotating water flow impacts the blades so as to push the impeller to rotate; permanent magnets are arranged on the impeller at intervals; a gap exists between the outer wall of the impeller and the inner wall of the downstream machine shell. A stator ring is further arranged on the inner wall of the downstream machine shell, and the upstream machine shell, the downstream machine shell, the impeller and the stator ring embedded in the downstream machine shell form a power generation device. The self-generating device can greatly improve the generating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation, and more specifically, to a high-efficiency self-generating device. Background Art

[0002] At present, the conventional technology of pipeline self-generation uses the kinetic energy of water flow to drive the impeller to rotate. A magnet is set on the impeller, and a stator ring is fixedly connected to the inner wall of the pipeline (the inner wall of the casing). The magnet rotates with the impeller to complete the movement of cutting the magnetic flux lines and realize self-generation. However, the water flow entering the impeller of the current self-generation device is not rectified by the guide cone and the fixed guide vane, the water flow is turbulent, the water energy utilization rate is low, and the power generation efficiency of the power generation device is not high.

[0003] Prior art CN202222048300.X discloses a pipeline residual pressure shaftless power generation device, comprising a shell, with two ends of the shell connected to external flanges; a stator is fixedly connected to the inner wall of the shell, a rotor is coaxially arranged on the inner side of the stator, the rotor is movably connected to the inner wall of the shell, and the stator and the rotor constitute a power generation device; an impeller is arranged on the inner wall of the rotor; permanent magnets are evenly spaced on the outer wall of the rotor; a water flow channel is arranged in the shell, the water inlet of the water flow channel is connected to the water inlet end of the external flange, and the water outlet of the water flow channel is connected to the water outlet end of the external flange.

[0004] The prior art discloses a technical solution for realizing self-generation by using water flow to drive the impeller to rotate, but the water flow passing through the impeller is also not rectified, and there is also a technical problem of low power generation efficiency. Utility Model Content

[0005] The utility model provides a high-efficiency self-generating device which improves the water energy utilization efficiency and thus the power generation efficiency by rectifying the water flow into a clockwise rotating water flow through a guide vane and flowing into an impeller with counterclockwise blade design.

[0006] In order to solve the above-mentioned technical problems, the technical solution of the utility model is as follows: a high-efficiency self-generating device is disclosed, which includes an upstream casing, a downstream casing, a guide vane arranged in the upstream casing along the water flow direction, and a shaft support seat arranged in the downstream casing, a rotating shaft is connected between the guide vane and the shaft support seat, and an impeller is connected to the rotating shaft; a guide vane rotating in one direction is arranged on the inner wall of the guide vane; a blade with a rotation direction opposite to that of the guide vane on the inner wall of the guide vane is arranged on the inner wall of the water inlet of the impeller, and the rotating water flow impacts the blade to promote the rotation of the impeller; a permanent magnet is arranged on the outer ring of the impeller; a stator ring is also arranged on the inner wall of the downstream casing, and there is a gap between the outer shell of the impeller and the stator ring in the downstream casing; the upstream casing, the downstream casing, the impeller, and the stator ring embedded in the downstream casing constitute a power generation device.

[0007] Preferably, the inner ring of the guide vane is fixedly connected to the guide cone, and the outer ring of the guide vane is fixedly connected to the inner wall of the upstream casing.

[0008] Preferably, the guide cone is provided with an axial hole connected to the rotating shaft.

[0009] Preferably, the impeller is located inside the stator ring and is arranged coaxially with the stator ring.

[0010] Preferably, a support sleeve is provided on the outer ring of the impeller, and the permanent magnet is provided on the support sleeve; the impeller is also provided with a rotor plastic seal for waterproofing the permanent magnet.

[0011] Preferably, bearings adapted to the rotating shaft are provided on both sides of the inner hole of the impeller.

[0012] Preferably, the stator ring comprises laminated silicon steel sheets and winding coils, the winding coils are led out with lead wires from lead wire holes of the downstream casing, and the lead wire holes are provided with glue.

[0013] Preferably, a waterproof stator ring plastic seal is provided on the stator ring.

[0014] Preferably, the upstream casing and the downstream casing are connected by bolts, and a waterproof sealing ring is provided between the upstream casing and the downstream casing.

[0015] Preferably, the shaft support seat includes a base, a rib plate connecting the base and the inner wall of the downstream casing, and a shaft hole arranged on the base for connecting with the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The structure is novel. The guide vanes are arranged on the guide vanes in a clockwise rotation direction, so that the water flow passing through the guide vanes is rectified into a rotating water flow, which acts on the impeller with blades arranged in the opposite direction, thereby improving the efficiency of water energy utilization and greatly improving the power generation efficiency.

[0018] 2. A support sleeve is provided on the impeller to facilitate the installation and fixation of the permanent magnet and to play a role in magnetic concentration. The permanent magnet is sealed and waterproof by plastic sealing of the rotor, and the waterproof sealing is good.

[0019] 3. The coil is waterproofed by plastic sealing the stator ring, a lead hole is set on the downstream casing and glue is poured at the lead hole, so that the coil is completely isolated from water, making the device suitable for use in water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of a high-efficiency self-generating device of the utility model;

[0021] Figure 2This is a schematic diagram of the installation structure of the guide vane and the upstream casing in a high-efficiency self-generating device of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the guide vanes and guide cones in a high-efficiency self-generating device of the utility model;

[0023] Figure 4 The utility model is a schematic diagram of the structure of a central shaft support seat of a high-efficiency self-generating device. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0026] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 application. 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 may be combined in an appropriate manner in any one or more embodiments or examples.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, a high-efficiency self-generating device is disclosed, which includes an upstream casing 10, a downstream casing 11, a guide vane 2 arranged in the upstream casing 10 along the water flow direction, and a shaft support seat 7 arranged in the downstream casing 11, a rotating shaft 3 is connected between the guide vane 2 and the shaft support seat 7, and an impeller 4 is connected to the rotating shaft 3; a guide vane rotating in one direction is arranged on the inner wall of the guide vane 2, and the water flow becomes a rotating water flow after passing through the guide vane; a blade with a rotation direction opposite to that of the guide vane on the inner wall of the guide vane 2 is arranged on the inner wall of the water inlet of the impeller 4, and the rotating water flow impacts the blade to drive the impeller 4 to rotate; a permanent magnet 5 is arranged on the outer ring of the impeller 4; a stator ring is also arranged on the inner wall of the downstream casing 11, and the upstream casing 10, the downstream casing 11, the impeller 4, and the stator ring embedded in the downstream casing 11 constitute a power generation device.

[0031] The upstream casing 10 and the downstream casing 11 are combined to form an integral casing 1 of the device. The casing 1 is a hollow structure, and a water flow channel is provided in the casing 1. A guide vane 2 with a guide cone is provided in the upstream casing 10 and a shaft support seat 7 is provided in the downstream casing 11 in the direction of water flow. A rotating shaft 3 is connected between the guide vane 2 and the shaft support seat 7. The impeller 4 is connected to the rotating shaft 3. Specifically, a guide vane is provided on the inner wall of the guide vane 2 in a clockwise direction, and the water flow becomes a water flow rotating in the clockwise direction after passing through the guide vane; a blade is provided on the inner wall of the water inlet of the impeller 4 in a counterclockwise direction, and the rotating water flow impacts the blade to drive the impeller 4 to rotate. Through the guide cone and guide vanes, the water entering the upstream casing in a straight line is changed into a clockwise rotating water flow. When the clockwise rotating water flow passes through the impeller blades, the rotation direction of the water flow is opposite to the rotation direction of the impeller blades. This has a great driving force on the impeller, thereby greatly increasing the rotation speed of the impeller and improving the conversion and utilization efficiency of water energy.

[0032] Under the action of water flow, the impeller 4 and the rotating shaft 3 rotate synchronously, thereby converting the kinetic energy of water into the kinetic energy of the impeller 4 rotation. Permanent magnets 5 are arranged at intervals on the impeller 4, and a stator ring is arranged on the inner wall of the downstream casing 11. The upstream casing 10, the downstream casing 11, the impeller 4, and the stator ring embedded in the downstream casing 11 constitute a power generation device. When the impeller 4 rotates, the permanent magnet 5 rotates with the impeller 4, thereby completing the movement of cutting the magnetic flux lines, generating electrical energy, and realizing self-generation. As long as there is water flowing in the casing 1, even a very small water flow, this device can maximize the conversion of the kinetic energy of water into the kinetic energy of the impeller 4 rotation, thereby driving the impeller 4 to rotate, without the need for external force to drive the impeller 4 to rotate, and is suitable for self-generation in a water pipe. And according to demand, the size of this device can be reasonably set so that this device can be applied to small pipes to realize self-generation.

[0033] In this embodiment, in addition to being used to install the rotating shaft 3, the guide vane 2 can also guide the water flow. The guide cone at the front end of the guide vane can reduce the water flow resistance. The water flow passing through the guide vane 2 is a rotating water flow, thereby increasing the force of the water flow on the impeller 4, and ultimately improving the power generation efficiency. The guide vane 2 can be connected to the inner wall of the upstream casing 10 through a fixing frame 20. In order to facilitate the connection between the impeller 4 and the rotating shaft 3, a bearing 6 connected to the rotating shaft 3 can be provided on the impeller 4. The bearing 6 can be specifically provided in two, respectively located on both sides of the inner hole of the impeller. Specifically, the guide cone can be fixedly connected to the inner ring of the guide vane 2, and the outer ring of the guide vane 2 is fixedly connected to the inner wall of the upstream casing 10. Blades are evenly spaced on the inner wall of the impeller 4, and the water flow impacts the blades, thereby urging the impeller 4 to rotate rapidly.

[0034] The shaft support seat 7 specifically includes a base, a rib connecting the base and the inner wall of the downstream casing 11, and a connection hole provided on the base for connecting with the rotating shaft 3. One end of the rotating shaft 3 is connected to the connection hole, so that the rotating shaft 3 can rotate relative to the shaft support seat 7. In this embodiment, the shaft support seat 7 can be specifically connected to the inner wall of the downstream casing 11 through four ribs. The main function of the shaft support seat 7 is to fix the rotating shaft 3, and then a guide cone can be provided on the shaft support seat 7 to reduce the tail water vortex and outflow resistance.

[0035] Specifically, there is a gap between the outer shell of the impeller 4 and the stator ring in the downstream casing 11; that is, the impeller 4 does not contact the inner wall of the stator ring, which eliminates the friction between the impeller 4 and the stator ring during rotation, reduces the loss of rotational kinetic energy of the impeller 4, and further improves the power generation efficiency of the impeller 4.

[0036] Example 2

[0037] Disclosed is a high-efficiency self-generating device, which comprises an upstream casing 10, a downstream casing 11, a guide vane 2 arranged in the upstream casing 10 along the water flow direction, and a shaft support seat 7 arranged in the downstream casing 11, a rotating shaft 3 is connected between the guide vane 2 and the shaft support seat 7, and an impeller 4 is connected to the rotating shaft 3; a guide vane rotating in one direction is arranged on the inner wall of the guide vane 2, and the water flow becomes a rotating water flow after passing through the guide vane; a blade with a rotation direction opposite to that of the guide vane on the inner wall of the guide vane 2 is arranged on the inner wall of the water inlet of the impeller 4, and the rotating water flow impacts the blade to drive the impeller 4 to rotate; a permanent magnet 5 is arranged on the outer ring of the impeller 4; a stator ring is also arranged on the inner wall of the downstream casing 11, and the upstream casing 10, the downstream casing 11, the impeller 4, and the stator ring embedded in the downstream casing 11 constitute a power generation device.

[0038] The difference between this embodiment and embodiment 1 is that, in order to further improve the power generation efficiency, the impeller 4 is arranged inside the stator ring and coaxially with the stator ring. According to the law of magnetic field, the closer to the magnet, the denser the magnetic flux lines are. When the impeller 4 is arranged inside the stator ring, when the impeller 4 rotates, more magnetic flux lines are cut, and more electric energy is generated, which not only makes the structure of the device compact, but also improves the power generation efficiency of the device.

[0039] Example 3

[0040] Disclosed is a high-efficiency self-generating device, which comprises an upstream casing 10, a downstream casing 11, a guide vane 2 arranged in the upstream casing 10 along the water flow direction, and a shaft support seat 7 arranged in the downstream casing 11, a rotating shaft 3 is connected between the guide vane 2 and the shaft support seat 7, and an impeller 4 is connected to the rotating shaft 3; a guide vane rotating in one direction is arranged on the inner wall of the guide vane 2, and the water flow becomes a rotating water flow after passing through the guide vane; a blade with a rotation direction opposite to that of the guide vane on the inner wall of the guide vane 2 is arranged on the inner wall of the water inlet of the impeller 4, and the rotating water flow impacts the blade to drive the impeller 4 to rotate; a permanent magnet 5 is arranged on the outer ring of the impeller 4; a stator ring is also arranged on the inner wall of the downstream casing 11, and the upstream casing 10, the downstream casing 11, the impeller 4, and the stator ring embedded in the downstream casing 11 constitute a power generation device.

[0041] The difference between this embodiment and embodiment 1 is that in order to facilitate the fixing of the permanent magnet 5, a support sleeve can be provided on the outer wall of the impeller 4. The support sleeve can specifically be a rubber sleeve, and a groove for fixing the permanent magnet 5 is provided on the rubber sleeve. Through the support sleeve, not only can the permanent magnet 5 be supported and fixed, but also a magnetic field gathering effect can be achieved. At the same time, in order to prevent the permanent magnet 5 from detaching from the support sleeve during the rotation of the impeller 4, a rotor plastic seal can also be provided on the impeller 4. The rotor plastic seal is specifically a waterproof rubber sleeve, which wraps the support sleeve and the permanent magnet 5 through the rotor plastic seal, thereby stabilizing the connection between the permanent magnet 5 and the impeller 4, and realizing waterproofing of the permanent magnet 5.

[0042] Example 4

[0043] Disclosed is a high-efficiency self-generating device, which comprises an upstream casing 10, a downstream casing 11, a guide vane 2 arranged in the upstream casing 10 along the water flow direction, and a shaft support seat 7 arranged in the downstream casing 11, a rotating shaft 3 is connected between the guide vane 2 and the shaft support seat 7, and an impeller 4 is connected to the rotating shaft 3; a guide vane rotating in one direction is arranged on the inner wall of the guide vane 2, and the water flow becomes a rotating water flow after passing through the guide vane; a blade with a rotation direction opposite to that of the guide vane on the inner wall of the guide vane 2 is arranged on the inner wall of the water inlet of the impeller 4, and the rotating water flow impacts the blade to drive the impeller 4 to rotate; a permanent magnet 5 is arranged on the outer ring of the impeller 4; a stator ring is also arranged on the inner wall of the downstream casing 11, and the upstream casing 10, the downstream casing 11, the impeller 4, and the stator ring embedded in the downstream casing 11 constitute a power generation device.

[0044] The difference between this embodiment and embodiment 1 is that the stator ring includes laminated silicon steel sheets and winding coils, and the winding coils are led out from the lead holes of the downstream casing, and the lead holes are provided with glue. The structure and principle of the stator ring are conventional technologies in the industry, and its structural principle will not be elaborated in detail here. In order to achieve waterproof sealing of the stator ring, a stator ring plastic seal can be provided on the inner wall of the downstream casing 11, and the stator ring is waterproofly sealed by the stator ring plastic seal. Specifically, a lead hole can also be provided on the downstream casing 11, and the lead wire of the winding coil passes through the lead hole to be connected to the power device or battery. In order to achieve waterproofing of the stator ring, glue can also be provided at the lead hole.

[0045] Example 5

[0046] Disclosed is a high-efficiency self-generating device, which comprises an upstream casing 10, a downstream casing 11, a guide vane 2 arranged in the upstream casing 10 along the water flow direction, and a shaft support seat 7 arranged in the downstream casing 11, a rotating shaft 3 is connected between the guide vane 2 and the shaft support seat 7, and an impeller 4 is connected to the rotating shaft 3; a guide vane rotating in one direction is arranged on the inner wall of the guide vane 2, and the water flow becomes a rotating water flow after passing through the guide vane; a blade with a rotation direction opposite to that of the guide vane on the inner wall of the guide vane 2 is arranged on the inner wall of the water inlet of the impeller 4, and the rotating water flow impacts the blade to drive the impeller 4 to rotate; a permanent magnet 5 is arranged on the outer ring of the impeller 4; a stator ring is also arranged on the inner wall of the downstream casing 11, and the upstream casing 10, the downstream casing 11, the impeller 4, and the stator ring embedded in the downstream casing 11 constitute a power generation device.

[0047] The difference between this embodiment and the above embodiment is that in order to facilitate the disassembly of the device and the connection with the water pipe, the housing 1 is a detachable structure. The housing 1 specifically includes an upstream housing 10 connected to the water inlet and a downstream housing 11 connected to the water outlet. The upstream housing 10 and the downstream housing 11 are connected by bolts 12 or the like.

[0048] Specifically, the guide vane 2 and the upstream housing 10 can be integrally formed, and the impeller and the downstream housing 11 can be integrally formed; during assembly, the permanent magnet 5 and the impeller 4 are fixed, and the impeller 4 and the rotating shaft 3 are combined together, and then the rotating shaft 3 and the guide vane 2 are assembled, and then the upstream housing 10 and the downstream housing 11 are locked by bolts 12 to complete the overall assembly. Through the above design, the device is easy to disassemble and assemble.

[0049] In this embodiment, the upstream casing 10 and the downstream casing 11 can be connected to the water pipe through common connecting parts such as flanges, so as to facilitate the connection of the device to the water pipe.

[0050] At the same time, a waterproof sealing ring can be arranged between the upstream casing 10 and the downstream casing 11 to further improve the waterproof performance of the device, so that the device can be applied to the diving field.

[0051] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A high-efficiency self-generating device, characterized in that: The high-efficiency self-generating device comprises an upstream casing, a downstream casing, a guide vane arranged in the upstream casing along the water flow direction, and a shaft support seat arranged in the downstream casing, a rotating shaft is connected between the guide vane and the shaft support seat, and an impeller is connected to the rotating shaft; a guide vane rotating in one direction is arranged on the inner wall of the guide vane; a blade rotating in the opposite direction to the guide vane on the inner wall of the guide vane is arranged on the inner wall of the water inlet of the impeller, and the rotating water flow impacts the blade to drive the impeller to rotate; a permanent magnet is arranged on the outer ring of the impeller; a stator ring is also arranged on the inner wall of the downstream casing, and the upstream casing, the downstream casing, the impeller, and the stator ring embedded in the downstream casing constitute a power generation device.

2. A high-efficiency self-generating device according to claim 1, characterized in that: The inner ring of the guide vane is fixedly connected to the guide cone, and the outer ring of the guide vane is fixedly connected to the inner wall of the upstream casing.

3. A high-efficiency self-generating device according to claim 2, characterized in that: The guide cone is provided with an axial hole connected with the rotating shaft.

4. A high-efficiency self-generating device according to claim 1, characterized in that: The impeller is located inside the stator ring and is coaxially arranged with the stator ring.

5. The high-efficiency self-generating device according to claim 1, characterized in that: A support sleeve is arranged on the outer ring of the impeller, and the permanent magnet is arranged on the support sleeve; a rotor plastic seal for waterproofing the permanent magnet is also arranged on the impeller.

6. The high-efficiency self-generating device according to claim 1, characterized in that: Bearings matching the rotating shaft are arranged on both sides of the inner hole of the impeller.

7. The high-efficiency self-generating device according to claim 1, characterized in that: The stator ring comprises laminated silicon steel sheets and winding coils, the winding coils are led out with lead wires from lead wire holes of the downstream casing, and the lead wire holes are provided with glue.

8. A high-efficiency self-generating device according to claim 7, characterized in that: The stator ring is provided with a waterproof stator ring plastic seal.

9. The high-efficiency self-generating device according to claim 1, characterized in that: The upstream casing and the downstream casing are connected by bolts, and a waterproof sealing ring is arranged between the upstream casing and the downstream casing.

10. The high-efficiency self-generating device according to claim 1, characterized in that: The shaft support seat comprises a base, a rib plate connecting the base and the inner wall of the downstream casing, and a shaft hole arranged on the base for connecting with the rotating shaft.

Images