Pipeline generator with coaxial impeller and rotor
By using a coaxial design of the impeller and rotor, and utilizing synchronous gears to drive the impeller to rotate synchronously, the energy loss problem caused by transmission gears is solved, achieving stable operation at high speeds and high torques, and making it suitable for sub-high pressure and high pressure level working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG LIANHEXING TECH R & D CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-15
AI Technical Summary
In existing pipeline generators, the transmission gears cause energy loss during power transmission and limit the torque and speed of the shaft, making them unsuitable for high-pressure and high-speed operating conditions.
The impeller and rotor are coaxially designed. Two sets of interlocking impellers are installed in the impeller cavity. Synchronous gears drive the impellers to rotate synchronously. The rotor is coaxially installed on the impeller shaft, reducing the number of transmission gears and achieving high speed and high torque operation.
It achieves stable operation under high pressure and high speed conditions, reduces the failure rate, and has the advantage of simple structure.
Smart Images

Figure CN224244941U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline generator technology, and in particular to a pipeline generator in which the impeller and rotor are coaxial. Background Technology
[0002] Pipelines typically require pressure regulation during fluid transport, which inevitably leads to energy waste when reducing pressure. Pipeline generator technology can convert the pressure energy during pressure reduction into electrical energy, thereby achieving resource utilization.
[0003] Existing pipeline generators come in various types, but they all include an impeller assembly that rotates under the action of pipeline fluid and a power generation assembly consisting of a rotor and a stator. The impeller shaft and the rotor shaft are connected by a transmission gear. When transmitting power, the transmission gear not only causes energy loss, but also limits the high torque and high speed that the rotating shaft of the pipeline generator should be able to achieve due to the structure and performance of the transmission gear. Utility Model Content
[0004] The purpose of this invention is to provide a pipeline generator with a coaxial impeller and rotor, so that the pipeline generator can adapt to operation under high torque and high speed conditions, making it suitable for operation under sub-high pressure and high pressure levels.
[0005] To solve the above-mentioned technical problems, this utility model provides a pipe generator with a coaxial impeller and rotor, including an impeller cavity and a power generation cavity and a transmission cavity distributed on both sides of the impeller cavity;
[0006] Two sets of interlocking impellers are installed in the impeller cavity, and the ends of the impeller shafts of the two sets of impellers are connected to a synchronous gear. Under the action of the synchronous gear, the two sets of impellers are driven to rotate synchronously.
[0007] A rotor is coaxially mounted on the impeller shaft of any one of the impellers, and the rotor rotates synchronously with the impeller shaft.
[0008] Preferably, the two sets of impellers are, but are not limited to, two- or three-bladed waist-shaped impellers, and the two sets of impellers interlock at the waist.
[0009] Preferably, the impeller cavity has two symmetrically arranged fluid inlet and outlet holes, and is installed on the pipeline through the fluid inlet and outlet holes, so that the fluid in the pipeline flows through the impeller cavity at the same time, thereby driving the internal impeller to rotate.
[0010] Preferably, the two fluid inlet and outlet holes are located in the middle of the impeller cavity, and a connecting flange is provided outside the holes; the connecting flange is welded and fixed to the pipeline or threads are machined on the inner wall of the connecting flange, and the connection is made to the pipeline through the threads.
[0011] Preferably, a right flange is installed on the side of the impeller cavity near the power generation cavity, and the impeller cavity is isolated from the power generation cavity by the right flange.
[0012] Preferably, one end of the impeller shaft passes through the right flange and extends into the power generation cavity for mounting the rotor.
[0013] Preferably, a left flange is installed on the side of the impeller cavity near the transmission cavity, and the impeller cavity is isolated from the transmission cavity by the left flange.
[0014] Preferably, the other end of the impeller shaft passes through the left flange and extends into the transmission cavity for mounting the synchronization gear.
[0015] Preferably, a stator coil is also installed inside the power generation cavity, and the rotor and the stator coil are isolated by a rotor cover.
[0016] Preferably, an explosion-proof junction box is also provided on the outside of the power generation cavity.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] With this pipeline generator, fluid enters the impeller cavity from the middle of the air inlet, driving the impeller to rotate. The two impellers rotate synchronously through the meshing of two synchronous gears. One of the impeller shafts is extended to coaxially mount the rotor. When the impeller rotates, the rotor rotates simultaneously, reducing the number of transmission gears between the impeller and the rotor. This allows it to adapt to high torque and high speed conditions, making it suitable for operation under sub-high pressure, high pressure levels, and high speed conditions. It also has the advantages of simple structure and low failure rate. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the pipe generator with the impeller and rotor coaxial, provided by this utility model;
[0020] Figure 2 This is a front view of the pipe generator with a coaxial impeller and rotor provided by this utility model;
[0021] Figure 3 This is a top view of the pipe generator with a coaxial impeller and rotor provided by this utility model;
[0022] Figure 4 This is a schematic diagram of the internal structure of the pipe generator with a coaxial impeller and rotor provided by this utility model.
[0023] Figure 5 This is a cross-sectional view of the pipe generator with a coaxial impeller and rotor provided by this utility model.
[0024] In the diagram: 1. Impeller cavity; 11. Impeller; 12. Impeller shaft; 2. Generator cavity; 21. Rotor; 22. Stator coil; 23. Rotor casing; 3. Transmission cavity; 31. Synchronous gear; 4. Fluid inlet / outlet port; 5. Right flange; 6. Left flange; 7. Explosion-proof junction box. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0028] This utility model provides a pipe generator with a coaxial impeller and rotor. Please refer to [link / reference]. Figure 1-3 It includes an impeller cavity 1 and a power generation cavity 2 and a transmission cavity 3 distributed on both sides of the impeller cavity 1; two sets of interlocking impellers 11 are installed in the impeller cavity 1, and the ends of the impeller shafts 12 of the two sets of impellers 11 are meshed with a synchronous gear 31, which drives the two sets of impellers 11 to rotate synchronously under the action of the synchronous gear 31; a rotor 21 is coaxially installed on the impeller shaft 12 of any set of impellers 11, and the rotor 21 rotates synchronously with the impeller shaft 12.
[0029] Specifically, such as Figure 4 As shown, both sets of impellers 11 are waist-shaped impellers, which can be two-bladed or three-bladed waist-shaped impellers, and the two sets of impellers 11 interlock at the waist.
[0030] For further information, please refer to the following: Figure 1-4 Two fluid inlet and outlet holes 4 are symmetrically opened on the impeller cavity 1, and the impeller is installed on the pipeline through the fluid inlet and outlet holes 4, so that the fluid in the pipeline flows through the impeller cavity 1 at the same time, thereby driving the internal impeller 11 to rotate.
[0031] The two fluid inlet and outlet holes 4 are located in the middle of the impeller cavity 1, and a connecting flange is provided outside the hole; the connecting flange is welded and fixed to the pipeline; or threads can be machined on the inner wall of the connecting flange and connected to the pipeline through the threads.
[0032] Specifically, such as Figure 5 As shown, a right flange 5 is installed on the side of the impeller cavity 1 near the power generation cavity 2, and the impeller cavity 1 is isolated from the power generation cavity 2 by the right flange 5.
[0033] Furthermore, one end of the impeller shaft 12 passes through the right flange 5 and extends into the power generation cavity 2 for mounting the rotor 21.
[0034] Specifically, such as Figure 5 As shown, a left flange 6 is installed on the side of the impeller cavity 1 near the transmission cavity 3, and the impeller cavity 1 is isolated from the transmission cavity 3 by the left flange 6.
[0035] Furthermore, the other end of the impeller shaft 12 passes through the left flange 6 and extends into the transmission cavity 3 for mounting the synchronous gear 31.
[0036] In this embodiment, the impeller shafts 12 of the two sets of impellers 11 are rotatably connected to the left flange 6 or the right flange 5 via bearings.
[0037] Specifically, a stator coil 22 is also installed inside the power generation cavity 2, and the rotor 21 and the stator coil 22 are isolated by a rotor cover 23; the magnetic force of the rotor 21 penetrates the rotor cover 23 and generates an electromagnetic effect with the stator coil 22 nested outside the rotor cover 23, thereby generating electricity.
[0038] Specifically, an explosion-proof junction box 7 is provided on the outside of the power generation cavity 2. The current generated by the stator coil 22 is sealed out of the stator cavity through the terminal block, sealed and output through the explosion-proof junction box 7, and finally output through the explosion-proof connection wire.
[0039] With this pipeline generator, fluid enters the impeller cavity from the middle of the air inlet, driving the impeller to rotate. The two impellers rotate synchronously through the meshing of two synchronous gears. One of the impeller shafts is extended to coaxially mount the rotor. When the impeller rotates, the rotor rotates simultaneously, reducing the number of transmission gears between the impeller and the rotor. This allows it to adapt to high torque and high speed conditions, making it suitable for operation under sub-high pressure, high pressure levels, and high speed conditions. It also has the advantages of simple structure and low failure rate.
[0040] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A pipe generator with a coaxial impeller and rotor, characterized in that, It includes an impeller cavity (1) and a power generation cavity (2) and a transmission cavity (3) distributed on both sides of the impeller cavity (1); Two sets of interlocking impellers (11) are installed in the impeller cavity (1), and the ends of the impeller shafts (12) of the two sets of impellers (11) are connected to a synchronous gear (31). Under the action of the synchronous gear (31), the two sets of impellers (11) are driven to rotate synchronously. A rotor (21) is coaxially mounted on the impeller shaft (12) of any one of the impellers (11), and the rotor (21) rotates synchronously with the impeller shaft (12).
2. A pipe generator with a coaxial impeller and rotor as described in claim 1, characterized in that, The two sets of impellers (11) are, but are not limited to, two-bladed or three-bladed waist-shaped impellers, and the two sets of impellers (11) mesh with each other at the waist.
3. A pipe generator with a coaxial impeller and rotor as described in claim 1, characterized in that, Two fluid inlet and outlet holes (4) are symmetrically opened on the impeller cavity (1), and the impeller is installed on the pipe through the fluid inlet and outlet holes (4), so that the fluid in the pipe flows through the impeller cavity (1) at the same time, thereby driving the internal impeller (11) to rotate.
4. A pipe generator with a coaxial impeller and rotor as described in claim 3, characterized in that, The two fluid inlet and outlet holes (4) are located in the middle of the impeller cavity (1), and a connecting flange is provided outside the hole; the connecting flange is welded and fixed to the pipeline or the threads are machined on the inner wall of the connecting flange and connected to the pipeline through the threads.
5. A pipe generator with a coaxial impeller and rotor as described in claim 1, characterized in that, A right flange (5) is installed on the side of the impeller cavity (1) near the power generation cavity (2), and the impeller cavity (1) is isolated from the power generation cavity (2) by the right flange (5).
6. A pipe generator with a coaxial impeller and rotor as described in claim 5, characterized in that, One end of the impeller shaft (12) passes through the right flange (5) and extends into the power generation cavity (2) for mounting the rotor (21).
7. A pipe generator with a coaxial impeller and rotor as described in claim 5, characterized in that, A left flange (6) is installed on the side of the impeller cavity (1) near the transmission cavity (3), and the impeller cavity (1) is isolated from the transmission cavity (3) by the left flange (6).
8. A pipe generator with a coaxial impeller and rotor as described in claim 7, characterized in that, The other end of the impeller shaft (12) passes through the left flange (6) and extends into the transmission cavity (3) for mounting the synchronous gear (31).
9. A pipe generator with a coaxial impeller and rotor as described in claim 1, characterized in that, The generator cavity (2) is also equipped with a stator coil (22), and the rotor (21) and the stator coil (22) are isolated from each other by a rotor cover (23).
10. A pipe generator with a coaxial impeller and rotor as described in claim 9, characterized in that, An explosion-proof junction box (7) is also provided on the outside of the power generation cavity (2).