Single-channel multi-stage water power generation equipment convenient to clean

By introducing wake conversion components, pulleys, drive belts, and long shafts into a single-channel multi-stage hydropower equipment, and by installing arc-shaped filter screens and cylindrical crushing blades to enhance the power of the filter components, and by eliminating negative pressure through the spiral connection between the main chamber of the volute and the wake pipe and the air intake pipe, efficient water kinetic energy conversion and power generation efficiency have been achieved, solving the cleaning and heat dissipation problems of existing equipment.

CN117287333BActive Publication Date: 2026-06-26WANYUAN HUJIAQIAO HYDROPOWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WANYUAN HUJIAQIAO HYDROPOWER CO LTD
Filing Date
2023-09-28
Publication Date
2026-06-26

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Abstract

The application discloses a single-channel multi-stage water conservancy power generation equipment convenient to clean, and relates to the technical field of hydroelectric power generation, in particular to the single-channel multi-stage water conservancy power generation equipment convenient to clean, which comprises a water inlet, one end of the water inlet is fixedly connected with a filter assembly, the bottom of the filter assembly is fixedly connected with a volute pipe group, a first-stage power generation group is arranged below the filter assembly, a second-stage power generation group is arranged below the first-stage power generation group, a tail flow conversion assembly is movably connected to the bottom of the first-stage power generation group, and a shock receiving impeller is fixedly connected to the middle of the tail flow conversion assembly. The single-channel multi-stage water conservancy power generation equipment convenient to clean can quickly clean the filter assembly and the volute main cabin by rotating the arc-shaped filter screen and disassembling the tail flow pipe, can guide external air into the volute main cabin through the air inlet pipe to increase the water flow speed in the volute main cabin, and can utilize the potential energy of the water flow in the tail flow pipe to provide a cooling device for the power generation device, so that the energy-saving power generation effect is achieved.
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Description

Technical Field

[0001] This invention relates to the field of hydropower technology, specifically to a single-channel multi-stage hydropower generation device that is easy to clean. Background Technology

[0002] Existing single-channel multi-stage hydropower equipment does not fully utilize the wake, failing to convert the wake's power into usable production power. Furthermore, the lack of adequate filtration components at the inlet allows debris and garbage to frequently enter the main chamber of the spiral casing, threatening the turbine runner. Most single-channel multi-stage hydropower equipment also lacks rapid cleaning capabilities, leading to frequent accumulation of debris in the filtration components and the main chamber, reducing power generation efficiency. Additionally, the relatively enclosed nature of the existing main chamber causes negative pressure within the pipes, affecting water flow velocity and resulting in insufficient turbine rotation speed, further reducing power generation efficiency. Moreover, the absence of continuous cooling systems increases the failure rate and shortens the lifespan of the power generation unit. Due to these shortcomings, existing single-channel multi-stage hydropower equipment cannot adequately meet current user needs. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a single-channel multi-stage hydropower generation device that is easy to clean, solving the problems mentioned in the background art, such as inadequate filtration devices, inability to perform rapid cleaning, negative pressure in the pipeline affecting water flow speed, and lack of cooling equipment in the power generation device.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a single-channel multi-stage hydropower generation device that is easy to clean, including an inlet, a filter assembly fixedly connected to one end of the inlet, a volute tube assembly fixedly connected to the bottom of the filter assembly, a first-stage power generation unit arranged parallel below the filter assembly, a second-stage power generation unit arranged parallel below the first-stage power generation unit, and a wake conversion assembly movably connected to the bottom of the first-stage power generation unit.

[0005] The wake conversion assembly has a driven impeller fixedly connected to its middle part, and pulleys fixedly connected to both ends of the wake conversion assembly. A transmission belt is attached to one side of the surface of the pulley, and the transmission belt is movably connected to the long shaft through another set of pulleys. A short shaft is provided parallel to the top of the wake conversion assembly, and a cooling fan is fixedly connected to one side of the short shaft.

[0006] Optionally, the filter assembly has shaft holes on both sides, an arc-shaped filter screen is attached to the inner wall of the filter assembly, an end shaft is fixedly connected to both ends of the arc-shaped filter screen, a water receiving plate is fixedly connected to one side of the arc-shaped filter screen, a cylindrical crushing blade is attached to the inner wall of the arc-shaped filter screen, and the arc-shaped filter screen forms a rotating structure through the end shaft and shaft holes.

[0007] Optionally, one end of the volute tube assembly is fixedly connected to the volute main compartment, the bottom of the volute main compartment is movably connected to the wake pipe, two air intake pipes are fixedly connected to the top of the outer wall of the volute main compartment, one end of the inner wall of the air intake pipe is movably connected to a check plate, one end of the check plate is movably connected to a protective mesh cover, the top of the wake pipe is connected to the bottom of the volute main compartment through threads to form a movable structure, and the inner wall size of the protective mesh cover is consistent with the outer wall size of the air intake pipe.

[0008] Optionally, a power generation device is fixedly connected to the top of the primary power generation unit, a top cover is provided parallel below the power generation device, a guide plate is fixedly connected to the bottom of the top cover, a main shaft runs through the center of the bottom of the power generation device, a wheel is fixedly connected to the bottom of the main shaft, a rotary bearing is attached to the top of the wheel, the wheel and the top cover form a rotating structure through the rotary bearing, and the main shaft and the power generation device form a rotating structure.

[0009] Optionally, the long shaft passes through the inner wall of the end shaft, and the long shaft and the cylindrical crushing blade form an integral structure. At the same time, the cylindrical crushing blade forms a rotating structure with the end shaft through the long shaft.

[0010] Optionally, the impeller, the wake conversion assembly, and the pulley form an integrated structure, and one end of the long shaft forms an integrated structure with another set of pulleys. At the same time, one end of the long shaft forms a transmission structure with the wake conversion assembly through the pulley and the transmission belt.

[0011] Optionally, one end of the short shaft is integrated with the pulley, and the short shaft forms a transmission structure with the wake conversion assembly through the pulley, the transmission belt, and the wake conversion assembly.

[0012] Optionally, the wake conversion assembly forms a rotating structure with the primary generator set via a bearing.

[0013] Optionally, the structure of the secondary power generation unit is consistent with that of the primary power generation unit, and no long shaft is provided above the secondary power generation unit.

[0014] Optionally, the inner wall of the main cabin and the guide plate form an integral structure, and the protective mesh and the air intake pipe form a detachable structure.

[0015] This invention provides a single-channel multi-stage hydropower generation device that is easy to clean, and has the following beneficial effects:

[0016] 1. This easy-to-clean single-channel multi-stage hydropower generation equipment achieves kinetic energy conversion of the wake pipe water flow by adding wake conversion components, pulleys, transmission belts and long shafts, and connects with the filter components to provide a power device for the filter components, so that the filter components can operate smoothly.

[0017] 2. This easy-to-clean single-channel multi-stage hydroelectric power generation equipment, by adding filter components, arc-shaped filter screens, and cylindrical crushing blades, can cut, crush, and filter large debris flowing into the inlet, greatly reducing the possibility of clogging the arc-shaped filter screen, making the water flowing into the main chamber of the volute cleaner, increasing the water flow speed in the main chamber of the volute, and reducing the risk of the impeller getting stuck.

[0018] 3. This easy-to-clean single-channel multi-stage hydropower equipment, by setting the arc-shaped filter screen and filter components as a rotatable structure, can periodically rotate the arc-shaped filter screen so that its opening faces upward, making it easy to clean the debris inside the arc-shaped filter screen; at the same time, by setting the wake pipe and the volute main chamber as a movable structure with a spiral connection, the wake pipe can be removed when necessary to clean the inner wall of the volute main chamber.

[0019] 4. This easy-to-clean single-channel multi-stage hydroelectric power generation equipment, by adding an air intake pipe to the outer wall of the main chamber of the spiral casing, can eliminate the negative pressure generated by the water flow in the main chamber of the spiral casing, thereby accelerating the water flow speed in the main chamber of the spiral casing, increasing the rotation speed of the turbine, and improving the power generation efficiency of the device; at the same time, a check plate and a protective net are installed at one end of the air intake pipe to prevent the water inside the main chamber of the spiral casing from overflowing due to excessive water flow. In addition, the protective net can prevent external animals and debris from entering the main chamber of the spiral casing, ensuring the smooth operation of the main chamber of the spiral casing.

[0020] 5. This easy-to-clean single-channel multi-stage hydropower equipment, by adding wake conversion components, pulleys, transmission belts, short shafts and cooling fans, can continuously provide air cooling to the power generation device using the power of the wake pipe flow, reducing the probability of power generation device failure and extending the service life of the power generation device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the isometric structure of a single-channel multi-stage hydropower generation system that is easy to clean.

[0022] Figure 2 This is a schematic diagram of the right-side full sectional structure of the single-channel multi-stage hydropower equipment, which is easy to clean.

[0023] Figure 3 This is a schematic diagram of the exploded structure of the spiral casing tube assembly of a single-channel multi-stage hydropower equipment, which is easy to clean.

[0024] Figure 4 This is a schematic diagram of the right-side full sectional structure of the first-stage generator unit of this easy-to-clean single-channel multi-stage hydroelectric power generation equipment;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the filter component of a single-channel multi-stage hydropower generation device, which is easy to clean.

[0026] Figure 6This is a partially enlarged structural diagram of the wake conversion component of a single-channel multi-stage hydropower generation device that is easy to clean;

[0027] Figure 7 This is a schematic diagram of the explosion structure of the air intake pipe of a single-channel multi-stage hydropower generation device, which is easy to clean.

[0028] In the diagram: 1. Water inlet; 2. Filter assembly; 201. Shaft hole; 202. Arc-shaped filter screen; 203. End shaft; 204. Water receiving plate; 205. Columnar pulverizer; 3. Volute tube assembly; 301. Volute main chamber; 302. Wake pipe; 303. Air inlet pipe; 304. Check plate; 305. Protective mesh cover; 4. First-stage generator set; 401. Generator; 402. Top cover; 403. Guide plate; 404. Main shaft; 405. Rotary wheel; 406. Rotary bearing; 5. Second-stage generator set; 6. Wake conversion assembly; 601. Impact impeller; 602. Pulley; 603. Drive belt; 604. Long shaft; 605. Short shaft; 606. Cooling fan. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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 of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Please see Figures 1 to 7The present invention provides a technical solution: a single-channel multi-stage hydropower generation device that is easy to clean, including an inlet 1, a filter assembly 2 fixedly connected to one end of the inlet 1, a volute tube assembly 3 fixedly connected to the bottom of the filter assembly 2, a first-stage power generation unit 4 arranged parallel below the filter assembly 2, a second-stage power generation unit 5 arranged parallel below the first-stage power generation unit 4, and a wake conversion assembly 6 movably connected to the bottom of the first-stage power generation unit 4.

[0033] A driven impeller 601 is fixedly connected to the middle of the wake conversion assembly 6. Pulleys 602 are fixedly connected to both ends of the wake conversion assembly 6. A transmission belt 603 is attached to one side of the surface of the pulley 602. The transmission belt 603 is movably connected to the long shaft 604 through another set of pulleys 602. A short shaft 605 is provided parallel above the wake conversion assembly 6. A cooling fan 606 is fixedly connected to the short shaft 605.

[0034] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the filter assembly 2 has shaft holes 201 on both sides. An arc-shaped filter screen 202 is attached to the inner wall of the filter assembly 2. An end shaft 203 is fixedly connected to both ends of the arc-shaped filter screen 202. A water receiving plate 204 is fixedly connected to one side of the arc-shaped filter screen 202. A cylindrical pulverizing blade 205 is attached to the inner wall of the arc-shaped filter screen 202. The arc-shaped filter screen 202 forms a rotating structure with the shaft holes 201 through the end shaft 203. This structure allows the arc-shaped filter screen 202 to rotate on the inner wall of the filter assembly 2. When it is necessary to clean the inner wall, the arc-shaped filter screen 202 is rotated so that the opening faces upward, which facilitates the cleaning of the debris on its inner wall and keeps the filtration unobstructed.

[0035] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, one end of the volute tube assembly 3 is fixedly connected to the volute main chamber 301, the bottom of the volute main chamber 301 is movably connected to the wake pipe 302, the top of the outer wall of the volute main chamber 301 is fixedly connected to two air intake pipes 303, one end of the inner wall of the air intake pipe 303 is movably connected to a check plate 304, and one end of the check plate 304 is movably connected to a protective mesh cover 305. The top of the wake pipe 302 is connected to the bottom of the volute main chamber 301 by threads to form a movable structure, and the inner wall size of the protective mesh cover 305 is consistent with the outer wall size of the air intake pipe 303. This structure makes it easy to remove the wake pipe 302 from the bottom of the volute main chamber 301 to facilitate cleaning of the inner wall of the volute main chamber 301. At the same time, the added air intake pipe 303 can effectively increase the water flow velocity inside the volute main chamber 301, and the protective mesh cover 305 can prevent external debris from entering the interior of the volute main chamber 301.

[0036] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a power generation device 401 is fixedly connected to the top of the first-stage power generation unit 4. A top cover 402 is provided parallel below the power generation device 401. A guide plate 403 is fixedly connected to the bottom of the top cover 402. A main shaft 404 passes through the center of the bottom of the power generation device 401. A rotating wheel 405 is fixedly connected to the bottom of the main shaft 404. A rotary bearing 406 is attached to the top of the rotating wheel 405. The rotating wheel 405 and the top cover 402 form a rotating structure through the rotary bearing 406. The main shaft 404 and the power generation device 401 also form a rotating structure. This structure can make the rotating wheel 405 rotate by the impact of water flow, and drive the main shaft 404 to rotate to provide power generation for the power generation device 401.

[0037] In this embodiment, as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the long shaft 604 passes through the inner wall of the end shaft 203, and the long shaft 604 and the cylindrical crushing blade 205 form an integral structure. At the same time, the cylindrical crushing blade 205 forms a rotating structure with the end shaft 203 through the long shaft 604. This structure enables the cylindrical crushing blade 205 to rotate along the axis of the end shaft 203, so as to achieve the purpose of crushing impurities in the water flow.

[0038] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the impeller 601, the wake conversion assembly 6, and the pulley 602 form an integrated structure, and one end of the long shaft 604 forms an integrated structure with another set of pulleys 602. At the same time, one end of the long shaft 604 forms a transmission structure with the wake conversion assembly 6 through the pulley 602 and the transmission belt 603. This structure can convert the water flow power of the wake pipe 302 into usable production power to provide rotational power for the cylindrical pulverizer 205 of the filter assembly 2.

[0039] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, one end of the short shaft 605 forms an integral structure with the pulley 602, and the short shaft 605 forms a transmission structure with the pulley 602, the transmission belt 603 and the wake conversion assembly 6. This structure can convert the water flow power of the wake pipe 302 into usable production power to provide rotational power for the cooling fan 606.

[0040] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the wake conversion assembly 6 forms a rotating structure with the first-stage generator set 4 through the bearing. This structure facilitates the smooth rotation of the wake conversion assembly 6 after the impeller 601 is impacted by the water flow from the wake pipe 302.

[0041] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the structure of the secondary power generation unit 5 is consistent with that of the primary power generation unit 4, and the long shaft rod 604 is not installed above the secondary power generation unit 5. This structure can maximize the conversion of the potential energy of the water flow from top to bottom into electrical energy, and at the same time utilize the potential energy of the water flow flowing out of the wake pipe 302.

[0042] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inner wall of the main chamber 301 of the volute and the guide plate 403 form an integrated structure, and the protective net cover 305 and the air intake pipe 303 form a detachable structure. This structure allows the water flow to impact the impeller 405 inside the main chamber 301 of the volute in a set direction.

[0043] In summary, this easy-to-clean single-channel multi-stage hydroelectric power generation equipment, when in use, introduces water into the inlet 1 of the device. The water flows through the inlet 1 into the filter assembly 2, and then along the water receiving plate 204 into the inner wall of the arc-shaped filter screen 202. At this time, the cylindrical shredder 205 inside the arc-shaped filter screen 202 will shred debris and garbage, ensuring that the arc-shaped filter screen 202 remains unobstructed. After filtration, the water flows from the bottom of the filter assembly 2 into the volute tube assembly 3, and from the volute tube assembly 3 into the volute main chamber 301. It then passes through the volute structure on the inner wall of the volute main chamber 301 and through... The water flow, guided by the guide plate 403, impacts the impeller 405, causing it to rotate and drive the main shaft 404 to rotate, thus providing power for the generator 401. When the water flows inside the main chamber 301 of the volute, it generates negative pressure, reducing the water flow velocity. At this time, the air intake pipe 303 on the surface of the main chamber 301 can introduce external air to balance the internal negative pressure, increase the water flow velocity, and accelerate the rotational speed of the impeller 405. After passing through the primary generator set 4, part of the water flows into the secondary generator set 5 to continue generating electricity, while the other part flows into… The tailpipe 302 has an impeller 601 directly below it. When impacted by the water flow, the impeller 601 drives the pulley 602 to rotate, which in turn drives the long shaft 604 and short shaft 605 to rotate via the transmission belt 603. The long shaft 604 provides rotational power to the cylindrical pulverizer 205 inside the filter assembly 2, while the rotation of the short shaft 605 powers the cooling fan 606. The cooling fan 606 continuously provides air cooling to the power generator 401, reducing its temperature and minimizing the risk of malfunctions. The efficiency is improved, extending the service life of the power generation unit 401; a wake conversion component 6 is also provided below the wake pipe 302 of the secondary power generation unit 5, but the pulley 602 and the transmission belt 603 are only connected by a short shaft 605; during routine cleaning and maintenance, the arc-shaped filter screen 202 can be rotated so that the opening faces upward, making it easier to clean internal debris and garbage. The wake pipe 302 can also be removed from the bottom of the main cabin 301 by rotating the wake pipe 302, and then the inner wall of the main cabin 301 can be cleaned. Compared with the traditional cleaning method, it is faster and more convenient.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A single-channel multi-stage hydropower generation device that is easy to clean, including an inlet (1), characterized in that: A filter assembly (2) is fixedly connected to one end of the water inlet (1). Shaft holes (201) are provided on both sides of the filter assembly (2). An arc-shaped filter screen (202) is attached to the inner wall of the filter assembly (2). An end shaft (203) is fixedly connected to both ends of the arc-shaped filter screen (202). A water receiving plate (204) is fixedly connected to one side of the arc-shaped filter screen (202). A cylindrical crushing blade (205) is attached to the inner wall of the arc-shaped filter screen (202). The arc-shaped filter screen (202) forms a rotating structure with the shaft hole (201) through the end shaft (203). The bottom of the filter assembly (2) is fixedly connected to a volute tube assembly (3), one end of the volute tube assembly (3) is fixedly connected to a volute main chamber (301), and the bottom of the volute main chamber (301) is movably connected to a wake pipe (302). Below the filter assembly (2) is a primary power generation unit (4), below the primary power generation unit (4) is a secondary power generation unit (5), and the bottom of the primary power generation unit (4) is movably connected to a wake conversion assembly (6). The wake conversion assembly (6) is fixedly connected to the middle of the impeller (601), and the two ends of the wake conversion assembly (6) are fixedly connected to pulleys (602). A transmission belt (603) is attached to one side of the surface of the pulley (602). The transmission belt (603) is movably connected to a long shaft (604) and a short shaft (605) through another set of pulleys (602). The short shaft (605) is located above the wake conversion assembly (6). A cooling fan (606) is fixedly connected to one end of the short shaft (605). The long shaft (604) passes through the inner wall of the end shaft (203), and the long shaft (604) and the cylindrical crusher (205) form an integral structure. At the same time, the cylindrical crusher (205) forms a rotating structure with the end shaft (203) through the long shaft (604).

2. The easy-to-clean single-channel multi-stage hydropower generation equipment according to claim 1, characterized in that: Two air intake pipes (303) are fixedly connected to the top of the outer wall of the main casing (301). One end of the inner wall of the air intake pipe (303) is movably connected to a check plate (304), and one end of the check plate (304) is movably connected to a protective net cover (305). The top of the wake pipe (302) is connected to the bottom of the main casing (301) by threads to form a movable structure, and the inner wall size of the protective net cover (305) is consistent with the outer wall size of the air intake pipe (303).

3. The easy-to-clean single-channel multi-stage hydropower generation equipment according to claim 2, characterized in that: A power generation device (401) is fixedly connected to the top of the first-stage power generation unit (4). A top cover (402) is provided below the power generation device (401). A guide plate (403) is fixedly connected to the bottom of the top cover (402). A main shaft (404) passes through the center of the bottom of the power generation device (401). A rotating wheel (405) is fixedly connected to the bottom of the main shaft (404). A rotating bearing (406) is attached to the top of the rotating wheel (405). The rotating wheel (405) and the top cover (402) form a rotating structure through the rotating bearing (406). The main shaft (404) and the power generation device (401) also form a rotating structure.

4. The easy-to-clean single-channel multi-stage hydropower generation equipment according to claim 1, characterized in that: The wake conversion component (6) forms a rotating structure with the primary generator set (4) via a bearing.

5. The easy-to-clean single-channel multi-stage hydropower generation equipment according to claim 1, characterized in that: The structure of the secondary power generation unit (5) is consistent with that of the primary power generation unit (4), and the secondary power generation unit (5) does not have a long shaft (604) above it.

6. The easy-to-clean single-channel multi-stage hydropower generation equipment according to claim 3, characterized in that: The inner wall of the main cabin (301) and the guide plate (403) form an integrated structure, and the protective net cover (305) and the air intake pipe (303) form a detachable structure.