Energy-saving water pump based on flow dynamic adjustment of blade angle
By incorporating regulating and filtering components into the water pump, the blade angle and solid particles can be dynamically adjusted, thus solving the efficiency problem of traditional water pumps when the flow rate changes, achieving energy saving and efficient operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHENGHUA ENERGY SAVING ELECTRIC
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional water pumps have fixed blade angles, which causes them to deviate from the optimal efficiency point when flow demand changes, resulting in energy waste and reduced efficiency. Existing technologies are also unable to respond to flow changes in real time.
By setting up an adjustment component, the blade angle is dynamically adjusted using an electric actuator and a flow sensor. Combined with a filter component to prevent solid particles from entering, real-time flow regulation and filtration are achieved.
It improves the operating efficiency of water pumps, reduces energy loss, lowers maintenance workload, extends equipment life, and optimizes flow adaptability.
Smart Images

Figure CN224396707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pump technology, specifically an energy-saving water pump that dynamically adjusts the blade angle based on flow rate. Background Technology
[0002] In traditional water pump systems, the installation angle of the impeller blades is usually fixed, meaning that the pump's performance curve is determined during the design phase. However, in actual operation, the pump's flow demand often changes dynamically, causing the pump to deviate from its optimal efficiency point, resulting in energy waste and decreased efficiency.
[0003] An existing patent (authorization announcement number: CN222276962U) discloses an anti-clogging and energy-saving water pump. The key technical points of the solution are: the outer and inner filter screens separate water plants and impurities from the water flow; the servo motor drives the L-shaped scraper and blades to rotate; the L-shaped scraper and blades scrape off and break up the impurities; at the same time, the L-shaped scraper can clean the pores of the outer and inner filter screens simultaneously, reducing the risk of impurities entering the water pump body; gaps are left between the blades and the outer and inner filter screens to avoid wear and ensure the breaking effect.
[0004] However, the above technical solutions still have certain defects. When the flow demand decreases, the pump still operates at a fixed angle, resulting in excessive head. It is necessary to rely on valve throttling adjustment, which causes additional energy loss. Some large pumps support manual adjustment of blade angle, but the adjustment process is cumbersome and cannot respond to flow changes in real time. Therefore, an energy-saving pump based on dynamic adjustment of blade angle based on flow is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an energy-saving water pump that dynamically adjusts the blade angle based on flow rate, in order to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An energy-saving water pump based on dynamic adjustment of blade angle based on flow rate includes a pump body, a suction pipe installed on one side of the pump body to draw water in, an adjustment component for adjusting blade angle installed at the output end of the pump body, and a filter component installed at the end of the suction pipe near the pump body.
[0008] The regulating assembly includes a housing fixedly mounted on the pump body, an electric push rod is provided inside the housing, and an impeller assembly is provided on the side of the electric push rod away from the housing;
[0009] The impeller assembly includes a rod body rotatably mounted at the output end of an electric push rod. A push plate is fixedly connected to the rod body. Multiple sets of connecting rods are provided on the push plate. A guide block is rotatably connected to the end of the connecting rod away from the push plate. A rotating plate is fixedly connected to the guide block, and the guide block is rotatably mounted inside the mounting housing. A torsion spring is provided between the guide block and the mounting housing, and the guide block is a teardrop-shaped guide plate.
[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0011] As a further embodiment of this utility model: the filter assembly includes a second connecting plate fixedly disposed on the side of the housing near the water suction pipe, a filter plate disposed on the side of the second connecting plate away from the housing, and a first connecting plate disposed on the other side of the filter plate, and bolts passing through the first connecting plate, the filter plate, and the second connecting plate.
[0012] As a further improvement of this utility model: a mesh screen is provided on the filter plate, and the filter plate is rotatably connected to a bolt.
[0013] As a further improvement of this utility model: the water suction pipe is threadedly connected to the first connecting plate, and the water suction pipe is a flexible hose.
[0014] As a further improvement of this utility model: the electric push rod is driven by a waterproof servo motor and is sealed and installed in the isolation cavity of the pump body.
[0015] As a further improvement of this utility model: a flow sensor is provided at one end of the housing near the water suction pipe. The flow sensor is connected to the controller, and the controller controls the stroke of the electric push rod according to the real-time flow data.
[0016] As a further improvement of this utility model, the mounting shell is provided with four sets of holes, which correspond to four sets of rotating plates and four sets of guide blocks respectively.
[0017] As a further improvement of this utility model: the rotating plate is a blade, and the rotating plate is made of stainless steel.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model, by setting an adjustment component, and based on the flow controller, adjusts the depth of the electric push rod to drive the connecting rod to push the guide block, thereby adjusting the angle of the rotating plate. The angle of the rotating plate is automatically adjusted according to the flow rate.
[0020] 2. This utility model, by setting up a filter component, can be quickly disassembled and assembled by bolt connection. At the same time, it can intercept solid particles and prevent particles from entering the water pump and causing damage to the regulating component. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the adjustment component of this utility model;
[0023] Figure 3 This is a schematic diagram of the impeller assembly of this utility model;
[0024] Figure 4 This is a partial structural schematic diagram of the filter assembly of this utility model;
[0025] Figure 5 This is a schematic diagram of the structure of the filter assembly of this utility model.
[0026] Attached image labels: 1. Pump body; 2. Adjustment assembly; 3. Filter assembly; 4. Suction pipe;
[0027] 21. Housing; 22. Electric actuator; 23. Impeller assembly;
[0028] 231. Rod body; 232. Push plate; 233. Connecting rod; 234. Guide block; 235. Rotating plate; 236. Mounting shell;
[0029] 31. First connecting plate; 32. Filter plate; 33. Second connecting plate; 34. Bolt. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0031] In one embodiment, such as Figures 1-5 As shown, an energy-saving water pump that dynamically adjusts the blade angle based on flow rate includes a pump body 1. A suction pipe 4 for drawing water is installed on one side of the pump body 1. An adjustment component 2 for adjusting the blade angle is installed at the output end of the pump body 1. A filter component 3 is provided at the end of the suction pipe 4 near the pump body 1.
[0032] In this embodiment, when the flow demand changes, valve throttling or frequency conversion speed regulation is usually relied upon, but there is still energy loss. By setting the adjustment component 2, the angle of the blades is adjusted so that the water pump always operates near the optimal efficiency point, reducing ineffective energy consumption, avoiding problems such as cavitation and vibration of traditional water pumps under low flow conditions, reducing the wear of impeller and bearings, and by setting the filter component 3, solid particles can be intercepted to prevent them from entering the pump body 1 and preventing the adjustment component 2 from jamming. At the same time, the filter component 3 is easy to clean or replace, reducing maintenance workload.
[0033] In one embodiment, such as Figure 5 As shown, the filter assembly 3 includes a second connecting plate 33 fixedly disposed on the side of the housing 21 near the water suction pipe 4. A filter plate 32 is disposed on the side of the second connecting plate 33 away from the housing 21, and a first connecting plate 31 is disposed on the other side of the filter plate 32. Bolts 34 pass through the first connecting plate 31, the filter plate 32, and the second connecting plate 33. The first connecting plate 31, the filter plate 32, and the second connecting plate 33 are fixed by bolts 34, which allows for quick assembly and disassembly of the filter assembly 3. At the same time, the filter plate 32 can be removed for cleaning or replacement, and different mesh sizes of filter plates 32 can be replaced according to the water quality.
[0034] In one embodiment, such as Figure 5 As shown, the filter plate 32 is provided with a mesh screen, and the filter plate 32 is rotatably connected to the bolt 34. The water suction pipe 4 is threadedly connected to the first connecting plate 31, and the water suction pipe 4 is a flexible hose. The water suction pipe 4 can be detached from the first connecting plate 31 at any time by rotating it, without disassembling the first connecting plate 31. The filter plate 32 can also be cleaned without disassembling the first connecting plate 31, which is suitable for frequent disassembly and assembly.
[0035] In one embodiment, such as Figure 2 and Figure 3As shown, the adjusting assembly 2 includes a housing 21 fixedly mounted on the pump body 1. An electric push rod 22 is disposed within the housing 21. An impeller assembly 23 is disposed on the side of the electric push rod 22 away from the housing 21. The impeller assembly 23 includes a rod body 231 rotatably mounted at the output end of the electric push rod 22. A push plate 232 is fixedly connected to the rod body 231. Multiple sets of connecting rods 233 are disposed on the push plate 232. A guide block 234 is rotatably connected to the end of the connecting rod 233 away from the push plate 232. The guide block 234 is fixedly connected to a rotating plate 235 and is rotatably mounted within a mounting housing 236. The guide block 234 and... A torsion spring is provided between the mounting housings 236, and the guide block 234 is a teardrop-shaped guide plate. The electric push rod 22 pushes the rod body 231, causing the push plate 232 to move laterally, so that the connecting rod 233 pushes the guide block 234, causing the guide block 234 to rotate, thereby adjusting the angle of the rotating plate 235. At the same time, when the electric push rod 22 stops applying pressure to the rod body 231, the torsion spring can reset the rotating plate 235 at any time. When the flow demand decreases, the electric push rod 22 retracts and automatically reduces the blade angle, reducing the head and avoiding excessive pressure that leads to energy waste. When the flow demand increases, the blade angle automatically increases, improving the pump's output capacity and avoiding insufficient flow.
[0036] As a supplement: the mounting shell 236 is provided with four sets of holes, which correspond to four sets of rotating plates 235 and four sets of guide blocks 234 respectively; the push plate 232 simultaneously pushes four sets of connecting rods 233, and each set of connecting rods 233 is rotatably connected to the push plate 232. By pushing a push plate 232, the four sets of rotating plates 235 can be adjusted at the same time, reducing losses and improving energy utilization efficiency.
[0037] In one embodiment, such as Figure 2 As shown, the electric push rod 22 is driven by a waterproof servo motor and is sealed and installed in the isolation chamber of the pump body 1. A flow sensor is provided at one end of the housing 21 near the suction pipe 4. The flow sensor is connected to the controller, and the controller controls the stroke of the electric push rod 22 according to the real-time flow data. The flow controller is installed in the pump inlet or outlet pipe to detect the liquid flow in real time. The waterproof servo motor receives the control signal and pushes the push rod to move linearly. Under high flow conditions, the blade angle is increased to increase the head to meet the pipeline network requirements. Under low flow conditions, the blade angle is decreased to avoid throttling losses.
[0038] In one embodiment, such as Figure 3 As shown, the rotating blade 235 is a blade, and the rotating blade 235 is made of stainless steel. The use of stainless steel for the rotating blade 235 extends its service life while reducing production costs, and it can be mass-produced and used.
[0039] The above embodiments disclose an energy-saving water pump that dynamically adjusts the blade angle based on flow rate. In this pump, by setting a filter assembly 3, when water is drawn into the suction pipe 4 by the pump, the filter plate 32 filters the water flow to prevent solid particles from entering the pump body 1 and causing the adjustment assembly 2 to jam. At the same time, the adjustment assembly 2 adjusts the pushing depth of the push plate 232 through the electric push rod 22, thereby adjusting the rotation angle of the rotating blade 235. By being electrically connected to the flow controller, the angle rotation of the rotating blade 235 is automatically controlled.
[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. Energy-saving water pump based on flow dynamic adjustment of blade angle, comprising a pump body (1), a water suction pipe (4) is installed on one side of the pump body (1) to suck water, characterized in that, The pump body (1) is equipped with an adjustment component (2) for adjusting the blade angle at the output end, and a filter component (3) is provided at the end of the suction pipe (4) near the pump body (1). The regulating component (2) includes a housing (21) fixedly installed on the pump body (1), an electric push rod (22) is provided inside the housing (21), and an impeller assembly (23) is provided on the side of the electric push rod (22) away from the housing (21); The impeller assembly (23) includes a rod body (231) rotatably mounted at the output end of an electric push rod (22). The rod body (231) is fixedly connected to a push plate (232). The push plate (232) is provided with multiple sets of connecting rods (233). The end of the connecting rod (233) away from the push plate (232) is rotatably connected to a guide block (234). The guide block (234) is fixedly connected to a rotating plate (235), and the guide block (234) is rotatably mounted inside a mounting shell (236). A torsion spring is provided between the guide block (234) and the mounting shell (236), and the guide block (234) is a teardrop-shaped guide plate.
2. The energy efficient water pump based on dynamic adjustment of blade angle based on flow rate as claimed in claim 1 wherein, The filter assembly (3) includes a second connecting plate (33) fixedly disposed on the side of the housing (21) near the water suction pipe (4). A filter plate (32) is disposed on the side of the second connecting plate (33) away from the housing (21). A first connecting plate (31) is disposed on the other side of the filter plate (32). Bolts (34) pass through the first connecting plate (31), the filter plate (32), and the second connecting plate (33).
3. The energy efficient pump based on flow dynamic adjustment of blade angle as claimed in claim 2 wherein, The filter plate (32) is provided with a mesh screen, and the filter plate (32) is rotatably connected to the bolt (34).
4. The energy-saving water pump based on dynamic adjustment of blade angle according to claim 2, characterized in that, The water suction pipe (4) is threadedly connected to the first connecting plate (31), and the water suction pipe (4) is a flexible hose.
5. The energy-saving water pump based on dynamic adjustment of blade angle according to claim 1, characterized in that, The electric push rod (22) is driven by a waterproof servo motor and is sealed in the isolation chamber of the pump body (1).
6. The energy-saving water pump based on dynamic adjustment of blade angle according to claim 1, characterized in that, A flow sensor is provided at one end of the housing (21) near the water suction pipe (4). The flow sensor is connected to the controller, and the controller controls the stroke of the electric push rod (22) according to the real-time flow data.
7. The energy-saving water pump based on dynamic adjustment of blade angle according to claim 1, characterized in that, The mounting housing (236) is provided with four sets of holes, which correspond to four sets of rotating plates (235) and four sets of guide blocks (234).
8. The energy-saving water pump based on dynamic adjustment of blade angle according to claim 1, characterized in that, The rotating blade (235) is a blade, and the rotating blade (235) is made of stainless steel.