Efficient energy-saving water pump for hydraulic engineering
By designing an interception mechanism and a cleaning unit in the submersible pump, the alternating use and automatic cleaning of the filter unit are achieved, solving the problem of reduced energy efficiency caused by impurities clogging the pump and ensuring efficient operation and long-term smooth flow of the submersible pump.
Patent Information
- Application Number
- CN202511824519.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-01-13
AI Technical Summary
Existing submersible pumps are prone to clogging when handling water containing impurities such as suspended solids, aquatic plants, and silt, leading to reduced energy efficiency, creating a vicious cycle that increases energy consumption and accelerates mechanical wear.
A high-efficiency and energy-saving water pump with an interception mechanism was designed. The pump drives two filter units to work alternately through an actuator to ensure that a clean filter screen is always in the working position. The impeller and drive shaft of the cleaning unit drive the cleaning brush to automatically clean the filter screen and prevent the accumulation of impurities.
Keeping the submersible pump operating within its high-efficiency range prevents energy consumption from escalating, extends equipment life, and solves the problem of increased energy consumption caused by filter clogging.
Smart Images
Figure CN121322402A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of energy-saving submersible pumps, in particular to a high-efficiency energy-saving water pump for water conservancy projects. BACKGROUND
[0002] In current water conservancy engineering practice, as the core equipment for water resource allocation and delivery, the operation energy efficiency of a submersible pump is directly related to the economy and sustainability of the entire system. However, a common and serious challenge is that no matter whether the water is taken from a natural water body or delivered in a treatment process, the water is generally mixed with various impurities such as suspended solids, waterweeds and silt. Once these impurities break through the preliminary protection and enter the interior of the submersible pump, they will become a "stealth killer" eroding the energy efficiency of the equipment. The harm is first reflected in the wear of the impeller, which is the key to energy conversion, and the blockage of the flow passage. Any change in the surface finish and flow passage shape of the impeller will directly destroy the optimal state of the hydraulic design, resulting in unnecessary impact, vortex and flow separation of the water flow in the pump, and a sharp increase in hydraulic loss. This deterioration of internal flow means that the motor needs to output more power to overcome the additional resistance to maintain the original flow and lift, which directly manifests as a significant increase in power consumption, i.e. a sharp decrease in energy efficiency. More seriously, this deterioration of energy efficiency is a vicious cycle that continues to intensify. The more serious the blockage, the lower the hydraulic efficiency, and the higher the energy consumption. High-load operation will accelerate mechanical wear and motor heating, and may eventually cause catastrophic failures such as motor overload, mechanical seal damage and even burning. SUMMARY
[0003] The application provides a high-efficiency energy-saving water pump for water conservancy projects, which comprises a submersible pump, a water inlet pipe, a filter box, a maintenance box, a drive box and an intercepting mechanism. One end of the water inlet pipe is fixedly connected with the water inlet of the submersible pump. The filter box is fixedly arranged on the water inlet pipe. Two replacement openings are formed in the top of the filter box, and the two replacement openings are arranged left and right. The maintenance box is fixedly arranged on the outer top of the filter box, and the maintenance box and the filter box are connected in communication through the two replacement openings. The drive box is fixedly arranged on the outer top of the maintenance box. The maintenance box and the drive box are provided with the intercepting mechanism. The intercepting mechanism comprises an execution unit and two alternately used filter units. The execution unit is used for driving the two filter units, so that the two filter units are alternately used in the filter box. The two filter units correspond to the two replacement openings respectively.
[0004] Preferably, the filtering unit comprises a support plate, two supports, a reciprocating screw rod, a limiting guide rod, a sliding block, an insertion plate and a filter screen, the support plate is fixedly arranged between the top of the maintenance box and the top of the filter box, the two supports are fixedly arranged on one side of the support plate, the reciprocating screw rod is rotatably connected with the two supports respectively, and the top end of the reciprocating screw rod is also rotatably connected with the top of the drive box, the limiting guide rod is fixedly arranged between the two supports, the sliding block is internally provided with a spiral cam matched with the spiral groove of the reciprocating screw rod, and the sliding block is movably connected with the reciprocating screw rod, the sliding block is also movably connected with the limiting guide rod, the insertion plate is fixedly arranged on one side of the sliding block, and the insertion plate is provided with the filter screen, and the insertion plate movably penetrates the replacement opening, and the execution unit is connected with the reciprocating screw rod.
[0005] Preferably, the execution unit comprises a rotating shaft, a motor, a first gear and a second gear, both ends of the rotating shaft are rotatably connected with the top of the maintenance box and the top of the drive box respectively, the motor is fixedly arranged on the top of the drive box, and the driving end of the motor is rotatably connected with the top end of the rotating shaft, the first gear is fixedly sleeved on the rotating shaft, and the second gear is fixedly sleeved on the reciprocating screw rod and engaged with the first gear.
[0006] Preferably, the filter box is also provided with two cleaning units, and the two cleaning units correspond to the two filtering units respectively.
[0007] Preferably, the cleaning unit comprises two supporting rods, a bearing, a transmission shaft, an impeller and a cleaning brush, one end of each of the two supporting rods is fixedly arranged on the top and the bottom of the filter box respectively, the bearing is fixedly arranged between the other ends of the two supporting rods, the transmission shaft is in interference fit with the inner ring of the bearing, the impeller is fixedly arranged on one end of the transmission shaft, and the cleaning brush is fixedly arranged on the other end of the transmission shaft, and the cleaning brush is in close contact with the filtering surface of the filter screen.
[0008] Preferably, the front side of the maintenance box is movably connected with a box door.
[0009] Preferably, the two filtering units are arranged in high and low positions.
[0010] The application provides a high-efficiency energy-saving water pump for hydraulic engineering, which has the following improvements and advantages compared with the prior art: the traditional filtering mode causes the continuous blockage of the filter screen, forcing the submersible pump to run in a poor working condition of high resistance and low efficiency, resulting in a large amount of waste of electric energy; the interception mechanism of the application drives two filtering units to precisely alternate lifting through an execution unit, ensuring that a clean filter screen is in the working position at any time, guaranteeing the smoothness and stability of the water inflow, which directly avoids the energy consumption rising caused by insufficient water inflow and rapid increase of water loss, so that the submersible pump always runs in the designed high-efficiency range; and the application utilizes the kinetic energy of the water flow in the filtering box to drive the cleaning brush to scrape and clean the filter screen in the working position in real time and automatically through the impeller and transmission shaft of the cleaning unit, so that the filter screen can maintain high efficiency during work as much as possible, and the long-term performance degradation caused by impurity accumulation is eliminated, so that the running efficiency of the submersible pump is stably maintained at the optimal level, and the vicious cycle of energy consumption deterioration over time is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0012] Figure 1 is a schematic diagram of the shaft structure of the application; Figure 2 is a schematic diagram of the front view structure of the filtering box, the driving box and the interception mechanism of the application; Figure 3 is a schematic diagram of the shaft structure of the interception mechanism of the application; Figure 4 is a schematic diagram of the shaft structure of the filtering box of the application; Figure 5 is a schematic diagram of the front view structure of the filtering box of the application; Figure 6 is a schematic diagram of the side view structure of the supporting rod and the shaft of the application.
[0013] Explanation of reference signs: 1, submersible pump; 2, filter box; 3, maintenance box; 4, drive box; 5, replacement port; 6, filter unit; 61, support plate; 62, support; 63, reciprocating screw rod; 64, limiting guide rod; 65, sliding block; 66, plugboard; 67, filter screen; 7, execution unit; 71, rotating shaft; 72, motor; 73, first gear; 74, second gear; 8, cleaning unit; 81, support rod; 82, bearing; 83, transmission shaft; 84, impeller; 85, cleaning brush; 9, water inlet pipe. DETAILED DESCRIPTION
[0014] The technical solutions of the present application will be described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0015] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0016] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0017] Please refer to Figures 1-6The application provides a technical scheme: a high-efficiency energy-saving water pump for water conservancy projects, which comprises a submersible pump 1, a water inlet pipe 9, a filter box 2, a maintenance box 3, a driving box 4 and an intercepting mechanism, one end of the water inlet pipe 9 is fixedly connected with a water inlet of the submersible pump 1, the filter box 2 is fixedly arranged on the water inlet pipe 9, two replacement openings 5 are formed in the top of the filter box 2, the two replacement openings 5 are arranged in a left-right manner, the maintenance box 3 is fixedly arranged on the outer top of the filter box 2, the maintenance box 3 and the filter box 2 are connected in communication through the two replacement openings 5, the driving box 4 is fixedly arranged on the outer top of the maintenance box 3, the maintenance box 3 and the driving box 4 are provided with the intercepting mechanism, the intercepting mechanism comprises an execution unit 7 and two filter units 6 used alternately, the execution unit 7 is used for driving the two filter units 6, so that the two filter units 6 are used alternately in the filter box 2, and the two filter units 6 correspond to the two replacement openings 5 respectively.
[0018] Specifically, the filter unit 6 comprises a supporting plate 61, two supports 62, a reciprocating screw rod 63, a limiting guide rod 64, a sliding block 65, an insertion plate 66 and a filter screen 67, the supporting plate 61 is fixedly arranged between the inner top of the maintenance box 3 and the outer top of the filter box 2, the two supports 62 are fixedly arranged on one side of the supporting plate 61, the reciprocating screw rod 63 is rotationally connected with the two supports 62 respectively, the top end of the reciprocating screw rod 63 is further rotationally connected with the top of the driving box 4, the limiting guide rod 64 is fixedly arranged between the two supports 62, the sliding block 65 is internally provided with a spiral cam matched with a spiral groove of the reciprocating screw rod, the sliding block 65 is movably connected with the reciprocating screw rod, the sliding block 65 is further movably connected with the limiting guide rod 64, the insertion plate 66 is fixedly arranged on one side of the sliding block 65, the filter screen 67 is arranged on the insertion plate 66, the insertion plate 66 movably penetrates the replacement opening 5, and the execution unit 7 is connected with the reciprocating screw rod 63.
[0019] Specifically, the execution unit 7 comprises a rotating shaft 71, a motor 72, a first gear 73 and a second gear 74, both ends of the rotating shaft 71 are rotationally connected with the top of the maintenance box 3 and the top of the driving box 4 respectively, the motor 72 is fixedly arranged on the outer top of the driving box 4, a driving end of the motor 72 is rotationally connected with the top end of the rotating shaft 71, the first gear 73 is fixedly sleeved on the rotating shaft 71, the second gear 74 is fixedly sleeved on the reciprocating screw rod 63, and the second gear 74 is engaged with the first gear 73.
[0020] Specifically, two cleaning units 8 are further arranged in the filter box 2, and the two cleaning units 8 correspond to the two filter units 6 respectively.
[0021] Specifically, the cleaning unit 8 includes two support rods 81, a bearing 82, a transmission shaft 83, an impeller 84, and a cleaning brush 85. One end of each of the two support rods 81 is fixedly arranged at the top and the bottom of the filter box 2, respectively. The bearing 82 is fixedly arranged between the other ends of the two support rods 81. The transmission shaft 83 is in interference fit with the inner ring of the bearing 82. The impeller 84 is fixedly arranged at one end of the transmission shaft 83. The cleaning brush 85 is fixedly arranged at the other end of the transmission shaft 83, and is in close contact with the filtering surface of the filter screen 67.
[0022] Specifically, the front side of the maintenance box 3 is movably connected with a box door.
[0023] Specifically, the two filter units 6 are arranged in a high-low manner.
[0024] Working principle: After the equipment is started, the motor 72 in the drive box 4 starts to work, and drives the reciprocating screw rod 63 to rotate through the transmission of the first gear 73 and the second gear 74. The rotary motion of the reciprocating screw rod 63 is converted into the precise reciprocating linear motion of the sliding block 65 along the limiting guide rod 64 through the cooperation of the helical groove of the reciprocating screw rod 63 and the internal cam of the sliding block 65. Since the initial positions of the two filter units 6 are opposite, when the sliding block 65 of one filter unit 6 drives the plug-in plate 66 and the filter screen 67 to move downward and insert into the working position in the filter box 2 for filtering, the sliding block 65 of the other filter unit 6 is synchronously moved upward to lift the plug-in plate 66 and the filter screen 67 from the filter box 2 to the non-working position in the maintenance box 3, so as to realize the alternating filtering cycle of one filter unit 6 above the other filter unit 6 and one in use and the other in standby. After the water flow enters the filter box 2, the suspended solids, aquatic plants, and silt in the water are effectively intercepted by the filter screen 67 in the working position, and the clean water is continuously sucked into the submersible pump 1 through the water inlet pipe 9, so as to ensure that the submersible pump 1 always operates under the working condition of low resistance and high efficiency, thereby realizing energy saving.
[0025] At the same time, when the water flow flows through the filter box 2, the kinetic energy of the water flow will impact on the impeller 84 of the cleaning unit 8, drive the impeller 84 to rotate, and then drive the cleaning brush 85 at the other end of the transmission shaft 83 to rotate synchronously through the transmission shaft 83. The rotating cleaning brush 85 will tightly adhere to and continuously scrape the filtering surface of the filter screen 67 in the working position, automatically strip and make the accumulated impurities fall off, complete the self-cleaning process of the filter screen, and the working personnel can open the maintenance box 3 to replace or clean the filter screen 67 in the non-working position. The whole process does not need to stop, which ensures the long-term unobstructed and high efficiency of the water inlet channel of the submersible pump 1, and fundamentally solves the problem of increased energy consumption caused by filter screen blockage.
[0026] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A high-efficiency and energy-saving water pump for water conservancy projects, characterized in that, The system includes a submersible pump (1), an inlet pipe (9), a filter box (2), a maintenance box (3), a drive box (4), and an interception mechanism. One end of the inlet pipe (9) is fixedly connected to the inlet of the submersible pump (1). The filter box (2) is fixedly mounted on the inlet pipe (9). The top of the filter box (2) has two replacement ports (5), which are arranged on the left and right sides respectively. The maintenance box (3) is fixedly mounted on the top of the filter box (2), and there is communication between the maintenance box (3) and the filter box (2). The drive box (4) is fixedly installed on the top of the maintenance box (3) and connected through the two replacement ports (5). An interception mechanism is provided inside the maintenance box (3) and the drive box (4). The interception mechanism includes an execution unit (7) and two filter units (6) used alternately. The execution unit (7) is used to drive the two filter units (6), so that the two filter units (6) are used alternately in the filter box (2). The two filter units (6) correspond to the two replacement ports (5) respectively.
2. The high-efficiency energy-saving water pump for water conservancy projects according to claim 1, characterized in that, The filter unit (6) includes a support plate (61), two brackets (62), a reciprocating screw (63), a limiting guide rod (64), a slider (65), an insert plate (66), and a filter screen (67). The support plate (61) is fixedly installed between the top of the maintenance box (3) and the top of the filter box (2). The two brackets (62) are fixedly installed on one side of the support plate (61). The reciprocating screw (63) is rotatably connected to the two brackets (62) respectively, and the top of the reciprocating screw (63) is also rotatably connected to the top of the drive box (4). Next, the limiting guide rod (64) is fixedly disposed between the two brackets (62), the slider (65) is provided with a spiral cam that cooperates with the spiral groove of the reciprocating screw, and the slider (65) is movably connected to the reciprocating screw. The slider (65) is also slidably connected to the limiting guide rod (64). The insert plate (66) is fixedly disposed on one side of the slider (65), and a filter screen (67) is disposed on the insert plate (66). The insert plate (66) movably passes through the replacement port (5). The execution unit (7) is connected to the reciprocating lead screw (63).
3. The high-efficiency energy-saving water pump for water conservancy projects according to claim 2, characterized in that, The execution unit (7) includes a rotating shaft (71), a motor (72), a first gear (73), and a second gear (74). The two ends of the rotating shaft (71) are rotatably connected to the top of the maintenance box (3) and the top of the drive box (4), respectively. The motor (72) is fixedly installed on the top of the drive box (4), and the drive end of the motor (72) is rotatably connected to the top of the rotating shaft (71). The first gear (73) is fixedly mounted on the rotating shaft (71), and the second gear (74) is fixedly mounted on the reciprocating lead screw (63), and the second gear (74) meshes with the first gear (73).
4. The high-efficiency energy-saving water pump for water conservancy projects according to claim 3, characterized in that, The filter box (2) is also provided with two cleaning units (8), and the two cleaning units (8) correspond to the two filter units (6) respectively.
5. A high-efficiency energy-saving water pump for water conservancy projects according to claim 4, characterized in that, The cleaning unit (8) includes two support rods (81), a bearing (82), a drive shaft (83), an impeller (84), and a cleaning brush (85). One end of the two support rods (81) is fixedly installed at the top and bottom of the filter box (2), respectively. The bearing (82) is fixedly installed between the other ends of the two support rods (81). The inner ring of the drive shaft (83) is interference-fitted with the bearing (82). The impeller (84) is fixedly installed at one end of the drive shaft (83). The cleaning brush (85) is fixedly installed at the other end of the drive shaft (83). The cleaning brush (85) is in close contact with the filter surface of the filter screen (67).
6. A high-efficiency energy-saving water pump for water conservancy projects according to claim 5, characterized in that, The front of the maintenance box (3) is movably connected to a box door.
7. A high-efficiency energy-saving water pump for water conservancy projects according to claim 6, characterized in that, The two filter units (6) are configured with one high and one low setting.