Pipeline generator impeller chamber and generator

Abstract

The utility model relates to a pipeline generator impeller chamber which is arranged in a pipeline and used for placing an impeller for driving a generator rotor. The impeller chamber comprises a water inlet and a water outlet, the water inlet is connected with the upstream of a pipeline, the water outlet is connected with the downstream of the pipeline, and the inner wall of the impeller chamber comprises two arcs which are different in radius and are concentrically arranged; the water outlet is arranged between the two arcs with different radiuses, and the water inlet of the impeller chamber is lower than the water outlet. Through the irregular circular structure of the impeller chamber, the water flow forms vortex, the kinetic energy of the water flow is fully utilized, and the power generation efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of power generation technology, and more specifically, to a pipeline generator impeller chamber and generator. Background Technology

[0002] Currently, pipeline power generation technology is widely used in water pipeline systems. The common technique involves placing impeller blades directly within the water flow channel of the pipeline, utilizing the linear water flow to drive the impeller's rotation and ultimately generate electricity. Existing impeller chambers for the blades are all circular, rotating under the impact of the water flow. In water pipelines with smaller pipes and lower water pressure, adding a blade reduces the impact force on the blades and can affect the normal water flow of the network. Furthermore, the current impeller chamber structure cannot fully utilize the kinetic energy of the water flow, resulting in low generator efficiency.

[0003] Existing technology CN202210979472.0 discloses a miniature hydraulic disc-type permanent magnet generator, including a housing, a water impeller, multi-stage magnets, stator coils, etc. The housing consists of a lower housing, a middle housing, and an upper housing. The lower housing and the middle housing are installed to form an impeller chamber, which has a jet hole. The jet hole is circular. The multi-stage magnets are laid flat between the blades and the central shaft of the water impeller. The middle housing and the upper housing are installed to form a water outlet channel. A stator coil placement cavity is provided between the water channel and the central shaft, and at least six stator coils are placed in the placement cavity. The housing has at least one water passage hole, and the upper housing has a stator coil lead outlet. The technical solution disclosed in the prior art only increases the water flow velocity by setting a jet hole in the impeller chamber, but the jet water flow is circular and not shaped into a narrow slit water flow that can cover the entire blade height (length) to increase the power generation. However, the disclosed technical solution only achieves one impact of water flow on the impeller, and the kinetic energy of the water flow is not fully utilized. Utility Model Content

[0004] This invention improves power generation by altering the water flow pattern impacting the blades within the impeller chamber. To address the aforementioned technical problems, the technical solution of this invention is as follows:

[0005] A pipe generator impeller chamber is provided, which is disposed in a pipe for housing an impeller that drives the generator rotor; the impeller chamber includes an inlet and an outlet, the inlet is connected to the upstream of the pipe and the outlet is connected to the downstream of the pipe, the inner wall of the impeller chamber includes two concentric arcs with different radii; the outlet is located between the two arcs with different radii, and the inlet of the impeller chamber is lower than the outlet.

[0006] Preferably, the two arcs with different radii are a large-radius arc and a small-radius arc, and a transition arc is provided between the large-radius arc and the small-radius arc.

[0007] Preferably, the large-radius arc is located in the upper part of the impeller chamber, and the small-radius arc is located in the lower part of the impeller chamber.

[0008] Preferably, the water inlet is located on the small-radius arc.

[0009] Preferably, the generator is located on one side of the impeller chamber, and the generator includes a rotor and a stator; the rotor includes an impeller, one end of the impeller is provided with a permanent magnet, and the other end is provided with blades, the permanent magnet end is correspondingly arranged with the stator, and the blade end is located in the impeller chamber.

[0010] Preferably, a cavity for accommodating water flow is provided between the blade and the large-radius arc.

[0011] Preferably, one end of the cavity is connected to the water outlet, and the other end is connected to the transition arc; the width of the cavity gradually narrows at the transition arc to the width between the small radius arc and the impeller.

[0012] Preferably, the rotor is concentrically arranged with the large-radius circular arc and the small-radius circular arc.

[0013] Preferably, the blades are disposed at the end of the impeller and are evenly arranged circumferentially along the axial direction of the impeller; there is a spacing between the blades; the blades together form a circular cavity.

[0014] Preferably, the impeller has a central shaft, which is connected to the impeller chamber and the generator housing, and the rotor rotates around the shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The impeller chamber is an irregular circle composed of two arcs with different radii, creating a vortex flow of water. The blades are housed within the impeller chamber. Water flowing into the impeller chamber from the inlet impacts the blades, with some flowing into the gap between the larger-radius arc and the blades. Thus, the water flowing through the impeller chamber impacts the blades twice. This fully utilizes the kinetic energy of the water, increasing the rotor speed connected to the blades, thereby increasing the frequency of cutting magnetic field lines and ultimately improving power generation efficiency.

[0017] 2. A narrowed flow channel is set at the water inlet to increase the water flow velocity into the impeller chamber, thereby increasing the force of the water flow on the blades and further improving power generation efficiency. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a pipeline generator according to the present invention;

[0019] Figure 2 This is a cross-sectional view of a pipeline generator according to the present invention;

[0020] Figure 3 This is a cross-sectional view of the impeller chamber of a pipeline generator according to the present invention;

[0021] Figure 4 This is a cross-sectional view of the rotor of a pipeline generator according to the present invention;

[0022] Figure 5 This is a schematic diagram of the rotor structure of a pipeline generator according to the present invention. Detailed Implementation

[0023] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0025] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0028] Example 1

[0029] like Figures 1-2 As shown, a pipeline generator impeller chamber 2 is disclosed. The impeller chamber 2 is disposed in the pipeline 1 and is used to house the impeller that drives the generator rotor 4. The impeller chamber 2 includes an inlet 6 and an outlet 7. The inlet 6 is connected to the upstream of the pipeline 1, and the outlet 7 is connected to the downstream of the pipeline 1. The inner wall of the impeller chamber 2 includes two concentric arcs with different radii, namely a large radius arc 8 and a small radius arc 9. The outlet 7 is disposed between the two arcs with different radii. The inlet 6 of the impeller chamber 2 is lower than the outlet 7.

[0030] In this embodiment, the inner wall of the impeller chamber 2 is composed of a large-radius arc 8 and a small-radius arc 9. The large-radius arc 8 and the small-radius arc 9 are concentric arcs. The small-radius arc 9 is located on the lower side of the impeller chamber, and the large-radius arc 8 is located on the upper side of the impeller chamber. The outlet is located between the large-radius arc 8 and the small-radius arc 9. The position of the inlet 6 is lower than the position of the outlet 7. Water upstream of the pipe 1 enters the impeller chamber 2 through the inlet 6, impacting the impeller to rotate. The impeller drives a portion of the water flow from the outlet 7 of the impeller chamber 2 to the downstream of the pipe 1; another portion of the water flows into the space between the large-radius arc 8 and the impeller, and this portion of the water impacts the impeller again, increasing the rotational force.

[0031] The cross-section of the impeller chamber 2 is an irregular circle formed by splicing two arcs with different radii. Furthermore, the inlet 6 and outlet 7 are staggered. When there is water flow in the impeller chamber 2, the water flow through the impeller chamber 2 is a vortex flow. By utilizing the vortex flow, the rotational speed of the impeller is increased. The faster the impeller rotates, the higher the speed of the generator rotor 4, and naturally, the higher the power generation efficiency.

[0032] Example 2

[0033] A pipeline generator is disclosed. The generator 3 is located on one side of the impeller chamber 2. The generator 3 includes a rotor 4 and a stator (not shown). The rotor 4 includes an impeller 11. One end of the impeller 11 is provided with a permanent magnet 12 and the other end is provided with a blade 5. The permanent magnet end is correspondingly arranged with the stator and the blade end is arranged in the impeller chamber 2.

[0034] The rotor 4 includes an impeller 11, and blades 5 connected to one end of the impeller 11 are disposed in the impeller chamber 2. When water flows in the impeller chamber 2, the water will impact the blades 5, thereby driving the rotor 4 connected to the blades 5 to rotate. The rotor 4 rotates relative to the stator to generate electricity.

[0035] The water flowing through impeller chamber 2 is a vortex flow, and blades 5 are installed inside impeller chamber 2. The water flowing into impeller chamber 2 from inlet 6 will initially impact blades 5, and simultaneously, the water flowing out from outlet 7 will also push blades 5 again. Thus, the water flowing through impeller chamber 2 will impact blades 2 twice. By fully utilizing the kinetic energy of the water, the rotational speed of rotor 4 connected to blades 2 is increased, thereby providing the frequency to cut magnetic field lines and ultimately improving power generation efficiency.

[0036] In this embodiment, a cavity 15 for accommodating water flow is provided between the blade 5 and the large radius arc 8.

[0037] Because impeller chamber 2 is irregularly shaped and its inner wall is curved, when external water flows into impeller chamber 2 from inlet 6, a portion of the water after the blades 5 rotate will be discharged from outlet 7. Due to the presence of cavity 15, which has a large space and low water pressure, another portion of the water will flow along the inner wall of impeller chamber 2 in a rotating manner and enter cavity 15. As external water continues to flow in, it pushes the original water flow in cavity 15 to continue rotating, forming a vortex flow. The vortex flow transfers energy to blades 5, reduces its velocity, enters the middle of blades 5, and then flows out from the blades near outlet 7. This process increases the rotational force transferred to blades 5, thereby greatly improving the utilization efficiency of water kinetic energy, increasing the rotational speed of rotor 5, and ultimately increasing power generation.

[0038] Specifically, there are two connection points between the large-radius arc 8 and the small-radius arc 9: one is the outlet 7, and the other is a transition arc 10. One end of the cavity 15 is connected to the outlet 7, and the other end is connected to the transition arc 10. The width of the cavity 15 gradually narrows at the transition arc 10 to the width between the small-radius arc 9 and the blade 5. Water entering the cavity 15 mainly flows into the blade 5 from the end where the cavity 15 connects to the transition arc 10, thereby impacting the blade 5 and driving the rotor 4 to rotate.

[0039] Example 3

[0040] A pipeline generator is disclosed. The generator 3 is located on one side of the impeller chamber 2. The generator 3 includes a rotor 4 and a stator. The rotor 4 includes an impeller 11. One end of the impeller 11 is provided with a permanent magnet 12, and the other end is provided with a blade 5. The permanent magnet end is correspondingly arranged with the stator, and the blade end is arranged in the impeller chamber 2.

[0041] The difference between this embodiment and embodiment 2 is that the rotor 4 includes an impeller 11. Specifically, the impeller 11 is a hollow impeller, and a permanent magnet 12 is provided at one end of the hollow impeller. The permanent magnet 12 is correspondingly arranged with the stator, and the blades 5 are provided at the other end of the impeller 11. The water flow impacts the blades 5 to rotate, which drives the rotor 4 to rotate and generate electricity.

[0042] To improve power generation efficiency, permanent magnets 12 are installed correspondingly to the stator.

[0043] In this embodiment, the impeller 11 is a hollow impeller, and blades 5 are disposed at the end of the impeller 11, arranged circumferentially along the axial direction of the impeller 11. There is a gap between the blades 5, and multiple blades 5 enclose a circular cavity. Along the water flow direction, water enters the impeller chamber 2, impacts the blades 5, and enters the circular cavity through the gaps between the blades 5. Then, it flows out through the gaps between the blades 5 near the outlet 7 and flows downstream of the pipe 1 through the outlet 7. Simultaneously, some water within the circular cavity flows into the hollow cavity 15 through the gaps between the blades 5, and then re-enters the circular cavity from within the hollow cavity 15.

[0044] To facilitate the rotation of rotor 4, a shaft 13 can be installed at the center of the hollow impeller. The two ends of the shaft 13 are connected to the impeller chamber 2 and the generator 3 housing, respectively. Under the action of water flow impacting the blades, rotor 4 rotates around the shaft 13. Specifically, bearings 14 can be installed on the impeller chamber 2 and the generator 3 housing, respectively. The shaft 13 is connected to the two bearings 14, thereby facilitating the rotation of the shaft 13.

[0045] To further enhance the impact force of the water flow on the blade 5, the inlet 6 can be configured as a narrowing flow channel, thereby increasing the flow velocity of the water impacting the blade 5. Specifically, the outlet 7 can also be configured as a narrowing flow channel.

[0046] When water enters the impeller chamber 2 from the inlet 6, it passes through a narrow slit nozzle that gradually narrows. The water is accelerated by the slit and then sprayed onto the blades 5, driving the rotor 4 to rotate. The water jet from the narrow slit nozzle is shaped to be at the same height as the blades 5, so that it can be evenly sprayed onto the entire water-facing surface of the blades 5, maximizing the force-bearing area of ​​the water-facing surface of the blades 5, while avoiding localized stress on the blades 5 and reducing their lifespan. The water jet automatically forms a vortex flow in the impeller chamber 2. The vortex flow acts on the blades to further accelerate the rotation of the rotor 4. After the vortex flow transfers some of the water energy, the vortex radius decreases and enters the circular cavity in the middle of the blades 5. It is then pushed by the subsequent water flow to impact the blades 5 again, causing them to rotate and do work before flowing out from the outlet 7. Therefore, the shaped jet of water impacts the blade 5, doing work for the first time. Then, the vortex flow forms and does work on the blade 5 again. Finally, the outflow does work on the blade 5 a third time. In one flow process, the water flow does work on the rotor 4 three times, fully transferring the kinetic energy of the water flow to the hollow impeller, driving the rotor 4 to rotate at high speed, greatly improving the efficiency of water energy utilization. By increasing the rotational speed of the rotor 4, the power generation capacity is ultimately increased.

[0047] Obviously, the above-described embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A pipe generator impeller chamber, characterized in that, The impeller chamber is located in the pipe and is used to house the impeller that drives the generator rotor. The impeller chamber includes an inlet and an outlet. The inlet is connected to the upstream of the pipe, and the outlet is connected to the downstream of the pipe. The inner wall of the impeller chamber includes two concentric arcs with different radii. The outlet is located between the two arcs with different radii. The inlet of the impeller chamber is lower than the outlet.

2. The impeller chamber of a pipeline generator according to claim 1, characterized in that, The two arcs with different radii are a large-radius arc and a small-radius arc, and a transition arc is provided between the large-radius arc and the small-radius arc.

3. The impeller chamber of a pipeline generator according to claim 2, characterized in that, The large-radius arc is located in the upper part of the impeller chamber, and the small-radius arc is located in the lower part of the impeller chamber.

4. The impeller chamber of a pipeline generator according to claim 3, characterized in that, The water inlet is located on the small radius arc.

5. A pipeline generator employing the impeller chamber of any one of claims 1-4, characterized in that, The generator is located on one side of the impeller chamber. The generator includes a rotor and a stator. The rotor includes an impeller. One end of the impeller is provided with a permanent magnet and the other end is provided with blades. The permanent magnet end is correspondingly arranged with the stator, and the blade end is located in the impeller chamber.

6. A pipeline generator according to claim 5, characterized in that, A cavity for accommodating water flow is provided between the blade and the large-radius arc.

7. A pipeline generator according to claim 6, characterized in that, A transition arc is provided between the large-radius arc and the small-radius arc. One end of the cavity is connected to the water outlet, and the other end is connected to the transition arc. The width of the cavity gradually narrows at the transition arc to the width between the small-radius arc and the impeller.

8. A pipeline generator according to claim 5, characterized in that, The rotor is concentrically arranged with the large-radius circular arc and the small-radius circular arc.

9. A pipeline generator according to claim 5, characterized in that, The blades are located at the end of the impeller and are evenly arranged around the circumference along the axial direction of the impeller; there is a spacing between the blades; the blades together form a circular cavity.

10. A pipeline generator according to claim 8, characterized in that, The impeller has a central shaft, which is connected to the impeller chamber and the generator housing. The rotor rotates around the shaft.

Images