Efficient energy-saving axial flow pump system

Abstract

The invention discloses a high-efficiency energy-saving axial flow pump system which comprises a pipe body and a power transmission and liquid conveying component arranged in the pipe body, and is characterized in that a filtering device with an automatic impurity removal function is arranged at the suction end of the pipe body and is matched with a displaceable component through an elastic component, and the displaceable component is arranged in the pipe body. A one-way device is arranged at the position, corresponding to the discharging port, outside the pipe body and comprises a one-way box and a communicating plate used for opening and closing the one-way box, a driving device is arranged in the one-way box, and the driving device is used for closing the one-way box when the discharging port is opened. When the discharging opening is closed, the one-way box is opened. The efficient and energy-saving axial flow pump system has the effect of reducing the cavitation problem in the pump body.

Description

Technical Field

[0001] The present invention belongs to the technical field of axial flow pumps, and more particularly, relates to a high-efficiency and energy-saving axial flow pump system. Background Art

[0002] As an important fluid conveying equipment, axial flow pumps are widely used in fields such as farmland irrigation, water conservancy projects, dock drainage, and power plant circulating water systems. Their unique structure and efficient operating principle enable them to perform well under low head and high flow conditions. The axial flow pump is mainly composed of key components such as the impeller, pump shaft, guide vanes, suction pipe, outlet elbow, pump support, coupling and drive device. Among them, the impeller is the most core component of the axial flow pump, which is composed of blades, hub and water guide cone. The shape of the blades is mostly airfoil-shaped, and the number is generally 4 to 6. This design helps to generate greater lift during rotation. According to the fixing method and adjustment method of the blades, axial flow pumps can be divided into fixed, semi-adjustable and fully adjustable types. The operating principle of an axial flow pump is based on the rotation of the impeller, which provides the motive force for water flow. When the drive unit (usually an electric motor or diesel engine) is started, the pump shaft begins to rotate, driving the impeller with it. The impeller's rotation creates a low-pressure area, forcing water into the pump casing. Once the water enters the impeller, it accelerates along the impeller's axis, due to the impeller's rotation generating forward momentum. As the water moves through the impeller, its kinetic energy gradually increases, along with its static pressure energy. This causes the water's pressure to increase, pushing the water out of the pump casing. Ultimately, the water is pushed to the pump casing outlet and then out of the pump. In this process, the water's kinetic energy is converted into pressure energy, thus achieving water transport.

[0003] The inventors believe that a common problem with axial flow pumps in the prior art is cavitation within the pump body. The liquid in the pump vaporizes due to a decrease in local pressure, forming bubbles. The bubbles burst in the high-pressure area, generating strong impact and vibration, which can lead to decreased pump performance, increased vibration and noise, and even damage to the flow-through components of the pump. Summary of the Invention

[0004] It is an object of the present invention to reduce the problem of cavitation in a pump body.

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a high-efficiency and energy-saving axial flow pump system.

[0006] In order to achieve the aforementioned purpose of the invention, the technical solution adopted by the present invention includes a pipe body and power transmission and liquid conveying components arranged in the pipe body, and is characterized in that the suction end of the pipe body is provided with a filtering device with an automatic impurity removal function, and the filtering device cooperates with the elastic component and the displaceable component to realize the blocking and opening of the discharge port to discharge impurities. A one-way device is provided at the position corresponding to the discharge port outside the pipe body, and the one-way device includes a one-way box and a connecting plate for opening and closing the one-way box. A driving device is provided in the one-way box, and the driving device is used to realize the closing of the one-way box when the discharge port is opened, and the opening of the one-way box when the discharge port is closed.

[0007] Optionally, the power transmission includes a pump shaft disposed in a tube body, a drive motor connected to the pump shaft, and a plurality of blades circumferentially disposed on the pump shaft, one end of the tube body being a suction pipe and the other end being a water outlet pipe; The filter device includes a filter frame, an elastic frame and a spring. The filter frame is fixedly connected to the suction pipe. The elastic frame is arranged on one side of the filter frame and abuts against the inner surface of the pipe body. The spring connects the elastic frame and the filter frame. A discharge port is opened at a position of the suction pipe corresponding to the filter device. The elastic frame blocks the discharge port under the normal state of the spring. When impurities accumulate and cause the spring to stretch, the elastic frame moves and no longer blocks the discharge port to discharge impurities.

[0008] Optionally, the output shaft of the drive motor is vertically arranged and fixedly connected to the pump shaft, so as to accurately transmit the torque to the pump shaft through coaxial transmission, thereby driving the blades to rotate.

[0009] Optionally, a support ring is provided outside the tube body, the inner surface of the support ring is fixedly connected to the outer surface of the tube body, and reinforcing ribs are provided between the support ring and the tube body, and the reinforcing ribs are fixedly connected to the support ring and the outer surface of the tube body respectively, so as to form a rigid structure, disperse the stress of the tube body, suppress deformation and vibration under high-pressure working conditions, and avoid energy dissipation.

[0010] Optionally, a hollow annular baffle is provided at the position of the filter frame corresponding to the spring. The baffle is fixedly connected to the side of the filter frame close to each other. The outer peripheral surface of the baffle can abut against the inner peripheral surface of the elastic frame. The ring thickness of the elastic frame is smaller than the ring thickness of the filter frame, which is used to limit the position direction of the elastic frame to ensure that it only moves in the axial direction, thereby preventing sealing failure caused by non-axial offset.

[0011] Optionally, the filtering device also includes a filter screen arranged in the elastic frame. The filter screen is a conical filter screen, and its protruding direction is opposite to the direction of water flow. The elastic frame is provided with a retaining frame at the position corresponding to the filter screen. The retaining frame and the filter screen abut against each other to ensure that the shape of the filter screen does not change, and in the event of blockage, the impurities are discharged in a directional manner through the discharge port in combination with the fluid pressure difference.

[0012] Optionally, a sedimentation chamber is provided on the side of the filter device away from the tube body, a sedimentation tank is provided on the lower side of the sedimentation chamber, and a drain valve is provided at a position of the sedimentation chamber corresponding to the sedimentation tank; a magnetic separator is provided at a position outside the sedimentation chamber corresponding to the sedimentation tank, and the magnetic separator generates a magnetic field of more than 0.8T for adsorbing ferromagnetic particles in the liquid.

[0013] Optionally, the connecting plate is rotatably connected to the one-way box, and the driving device is a waterproof motor. Optionally, a sliding groove for sliding is provided at the position corresponding to the connecting plate of the one-way box, and the sliding of the connecting plate 83 can realize the connection or closure of the one-way box with the outside; the driving device includes a driving rod 1 and a driving rod 2, and a rotating rod is provided at the connection position corresponding to the driving rod 1 and the driving rod 2 of the one-way box, and the rotating rod is rotatably connected to the connection position of the driving rod 1 and the driving rod 2. Optionally, the distance between the rotating rod and the spring frame is greater than the distance between the rotating rod and the connecting plate. Compared with the prior art, the advantages of the present invention include: (1) The present invention provides a high-efficiency and energy-saving axial flow pump system, in which the filter device adopts an elastic frame and a spring linkage structure. When large particles of impurities accumulate, the spring is compressed and stretched to drive the elastic frame to axially displace, automatically expanding the filter gap to discharge foreign matter and avoiding downtime for maintenance; the design of the conical filter screen protruding in the opposite direction of the water flow, combined with the effect of fluid pressure difference, can realize the directional discharge of impurities through the discharge port when blocked, maintain continuous liquid suction capacity, increase liquid suction efficiency by reducing impurities, reduce the proportion of air dissolved in the liquid, and reduce the cavitation effect in the pump body; (2) The present invention provides a high-efficiency and energy-saving axial flow pump system that can process external liquid through a sedimentation chamber and a magnetic separator: the sedimentation tank reduces the flow rate by expanding the cross-sectional area, thereby extending the sedimentation time of large particle impurities; the magnetic separator generates a magnetic field of more than 0.8T to adsorb ferromagnetic particles; this combined purification system significantly reduces the content of solid particles in the liquid, reduces the risk of wear on the blades and the inner wall of the tube body, and extends the service life of key components; (3) The present invention provides a high-efficiency and energy-saving axial flow pump system, in which the rigid support structure composed of the bracket ring and the reinforcing ribs effectively disperses the stress of the pipe body, suppresses deformation and vibration under high-pressure conditions, and avoids energy dissipation caused by mechanical vibration; the dynamic sealing system composed of the elastic frame and the baffle is designed to limit axial displacement, allowing only slight non-axial vibration, preventing sealing failure caused by non-axial offset, significantly reducing operating noise and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is an overall schematic diagram of a high-efficiency and energy-saving axial flow pump system in the present invention; Figure 2 A side view of a high-efficiency and energy-saving axial flow pump system according to the present invention; Figure 3 A cross-sectional view of a high-efficiency and energy-saving axial flow pump system according to the present invention; Figure 4 A partial schematic diagram of a protruding support ring of a high-efficiency and energy-saving axial flow pump system in the present invention; Figure 5 A schematic cross-sectional view of a high-efficiency and energy-saving axial flow pump system highlighting a filter device in the present invention; Figure 6 This is a cross-sectional schematic diagram of a high-efficiency and energy-saving axial flow pump system protruding from a sedimentation chamber in the present invention; Figure 7 A cross-sectional schematic diagram of a high-efficiency energy-saving axial flow pump system embodiment 1 of the present invention, highlighting the one-way device Figure 8 This is a cross-sectional schematic diagram highlighting the one-way device of Example 2 of a high-efficiency and energy-saving axial flow pump system of the present invention; Reference numerals: 1. Pipe body; 11. Pump shaft; 12. Drive motor; 13. Blades; 2. Suction pipe; 3. Discharge pipe; 4. Bracket ring; 41. Reinforcement ribs; 5. Filter device; 51. Filter screen; 52. Filter frame; 53. Elastic frame; 54. Spring; 55. Baffle; 56. Retainer; 6. Discharge port; 7. Sedimentation chamber; 71. Sedimentation tank; 72. Drain valve; 73. Magnetic separator; 8. One-way device; 81. One-way box; 82. One-way valve; 83. Connecting plate; 84. Sliding groove; 9. Drive device; 91. Waterproof cylinder; 92. Drive rod 1; 93. Drive rod 2; 94. Rotating rod; In the drawings, the same components are denoted by the same reference numerals; the drawings are not drawn to scale. DETAILED DESCRIPTION

[0016] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention after long-term research and extensive practice. The following will further explain the technical solution, its implementation process and principles, etc. in conjunction with the drawings in the embodiments of this application and specific implementation cases.

[0017] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, the present invention covers any substitution, modification, equivalent method and scheme made within the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of this application, "first", "second", "third" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, "a" or "an" and other similar words do not indicate a quantity limitation, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0019] In the description of this application, the terms "center," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Furthermore, when positional terms such as "both sides," "outside," "upper," and "lower" are used, they should be understood to be used solely to facilitate understanding and description, taking into account that the structure may be oriented in other directions.

[0020] In the description of this application, unless otherwise clearly specified and limited, the technical or scientific terms used should have the usual meanings understood by persons with ordinary skills in the field to which this application belongs. Terms such as "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] The embodiments of the present invention are intended to introduce and illustrate the structural composition of a high-efficiency energy-saving axial flow pump system and the coordination relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components suitable for a high-efficiency energy-saving axial flow pump system in the embodiments of the present invention can be selected according to specific circumstances and are not specifically limited or explained here.

[0022] Furthermore, in order to provide the public with a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0023] Example 1 See also Figure 1-6 As shown, a high-efficiency and energy-saving axial flow pump system includes a pipe body 1, in which a pump shaft 11 is rotatably connected, and the pump shaft 11 is coaxially arranged with the pipe body 1. One end of the pump shaft 11 extends out of the pipe body 1, and a plurality of blades 13 are circumferentially arranged on the end of the pump shaft 11 located in the pipe body; a drive motor 12 is fixedly connected to the end of the pipe body 1 corresponding to the pump shaft 11 extending out of the pipe body 1, and the output shaft of the drive motor 12 and the pump shaft 11 are fixedly connected to each other; one end of the pipe body 1 is a water suction pipe 2, and the other end of the pipe body 1 is a water outlet pipe 3; a bracket ring 4 is provided on the outside of the pipe body 1, and the bracket ring 4 is sleeved on the outside of the pipe body 1, and the inner surface of the bracket ring 4 is fixedly connected to the outer surface of the pipe body 1; the bracket ring 4 is provided with a reinforcing rib 41 corresponding to the outside of the pipe body 1, and the reinforcing rib 41 is fixedly connected to the bracket ring 4 and the outer surface of the pipe body 1 respectively.

[0024] When in use, the drive motor 12 serves as a power source, and its output shaft is directly fixed to the pump shaft 11, and the torque is accurately transmitted to the pump shaft 11 through a coaxial transmission. When the motor starts, the pump shaft 11 rotates at high speed along the axial direction, driving the multiple blades 13 arranged circumferentially to rotate synchronously; the blades 13 interact with the liquid in the tube body 1 during rotation; the spiral curved surface design of the blades 13 generates axial thrust on the liquid, forming a local low-pressure area at the end of the suction pipe 2; the external liquid is pressed into the tube body 1 under the action of atmospheric pressure, and at the same time, the rotational motion of the blades 13 pushes the liquid axially toward the outlet pipe 3, achieving continuous liquid suction; after the liquid enters the tube body 1, the continuous rotation of the blades 13 applies kinetic energy to it. The flow channel formed by the blades 13 and the inner wall of the tube body 1 has been optimized for fluid dynamics to reduce eddy currents and friction losses, so that the kinetic energy of the liquid is efficiently converted into pressure energy. The rigid structure formed by the support ring 4 and reinforcing ribs 41 ensures that the pipe body 1 maintains precise shape and position under high pressure, preventing energy dissipation due to vibration. The liquid flows smoothly axially under the thrust of the blades 13 and the guidance of the pipe body 1, ultimately being discharged from the outlet pipe 3 in a targeted manner. The support ring 4 improves the system's vibration resistance by dispersing stress. The rigid connection between the drive motor 12 and the pump shaft 11 ensures zero power transmission. The axial flow field generated by the rotation of the blades 13 precisely matches the flow path of the pipe body 1.

[0025] See also Figure 1-6 As shown, a filter device 5 is provided at one end of the tube body 1 corresponding to the suction pipe 2, and the filter device 5 includes a filter screen 51 and a filter frame 52; the filter frame 52 is fixedly connected to the suction pipe 2, and an elastic frame 53 is provided on one side of the filter frame 52. The elastic frame 53 is hollow, and the filter screen 51 is arranged in the elastic frame 53; the elastic frame 53 is coaxially arranged with the tube body 1, and the outer surface of the elastic frame 53 and the inner surface of the tube body 1 abut against each other. A spring 54 is provided between the elastic frame 53 and the filter frame 52, and one end of the spring 54 is fixedly connected to the elastic frame 53, and the other end of the spring 54 is fixedly connected to the filter frame 52. A baffle 55 is provided at the position of the filter frame 52 corresponding to the spring 54. The baffle 55 is an annular hollow structure. The baffle 55 and the filter frame 52 are fixed to each other on the side close to each other. The outer peripheral surface of the baffle 55 can abut against the inner peripheral surface of the elastic frame 53. The ring thickness of the elastic frame 53 is smaller than the ring thickness of the filter frame 52; the filter screen 51 is a conical leakage screen, and the protruding direction of the filter screen 51 is opposite to the direction of water flow. The elastic frame 53 is provided with a retaining frame 56 at the position corresponding to the filter screen 51. The retaining frame 56 abuts against the filter screen 51 to ensure that the shape of the filter screen 51 does not change.

[0026] During use, under the action of the axial thrust generated by the rotation of the blades 13 , the liquid outside the tube body 1 is sucked into the end of the suction pipe 2 . At this point, the filter device 5 begins to function: the liquid first contacts the filter screen 51 fixed to the elastic frame 53, where impurities are trapped outside the screen. After being filtered, the liquid enters the interior of the tube body 1. The elastic frame 53 tightly abuts the inner wall of the tube body 1, and its annular hollow structure forms a dynamic seal, preventing unfiltered liquid from circumventing. The baffle 55 limits the position and direction of the elastic frame 53 through its annular hollow structure, ensuring that the elastic frame 53 only moves in the axial direction and slightly vibrates in non-axial directions, thereby preventing seal failure caused by water impact. After the filtered liquid enters the tube body 1, the continuous rotation of the blades 13 applies kinetic energy to it. The flow channel formed by the blades 13 and the inner wall of the tube body 1 has been optimized for fluid dynamics to reduce eddy currents and friction losses, thereby efficiently converting the liquid's kinetic energy into pressure energy. The elastic frame 53 of the filter device 5 is designed to have an anti-clogging function: the elastic frame 53 is thinner than the filter frame 52. When large particles of impurities accumulate, the spring 54 is compressed and stretched, driving the elastic frame 53 to move axially, temporarily expanding the filter gap to expel foreign matter and avoiding blockage and shutdown. See also Figure 1-6 As shown, a discharge port 6 is opened at the position of the suction pipe corresponding to the filter device 5, and the width of the discharge port 6 is the same as the width of the elastic frame 53; under normal circumstances, when the spring 54 is in an unstretched position, the spring frame 53 is located at the position of the discharge port 6, and when the spring 54 is stretched, the stretching distance of the spring 54 is the same as the thickness of the spring frame 53.

[0027] When in use, a local low-pressure area is formed at the end of the suction pipe 2; the external liquid is pressed into the tube body 1 under the action of atmospheric pressure, and at the same time, the rotation of the blades 13 pushes the liquid axially toward the water outlet pipe 3 to achieve continuous liquid suction. When the filter screen 51 is blocked, the liquid suction process is not smooth, and the air pressure drives the filter screen 51 and the elastic frame 53 to move away from the filter frame 52; in the initial state, the elastic frame 53 blocks the discharge port 6, and impurities cannot leave from the discharge port 6. When the filter screen 51 is blocked, the liquid suction process is not smooth, and the air pressure drives the filter screen 51 and the elastic frame 53 to move away from the filter frame 52, the elastic frame 53 does not block the discharge port 6 because the flow velocities of the fluid inside and outside are different, and because the filter screen 51 is convex; the impurities on the filter screen 51 are discharged through the discharge port 6, and thus do not block the filter screen 51.

[0028] See also Figure 1-6 As shown, a sedimentation chamber 7 is provided on the side of the filter device 5 away from the tube body 1, a sedimentation tank 71 is provided on the lower side of the sedimentation chamber 7, and a sewage valve 72 is provided at a position of the sedimentation chamber 7 corresponding to the sedimentation tank 71; a magnetic separator 73 is provided outside the sedimentation chamber 7 at a position corresponding to the sedimentation tank 71.

[0029] During use, the external liquid is first drawn into the settling chamber 7 before entering the tube body 1. At this point, large impurities in the liquid settle at the bottom of the settling chamber 7 due to gravity, achieving a preliminary solid-liquid separation. A settling tank 71, located below the settling chamber 7, reduces the flow rate relative to that within the tube body 1 by increasing its cross-sectional area, thereby extending the settling time of impurities. A magnetic separator 73, located outside the settling chamber 7, generates a magnetic field exceeding 0.8 T, which attracts ferromagnetic particles (such as metal debris) in the liquid, achieving dual purification in conjunction with the settling action.

[0030] See also Figure 1-7 As shown, a one-way device 8 is provided at the position of the pipe body 1 corresponding to the discharge port 6. The one-way device 8 includes a one-way box 81 fixed to the outside of the discharge port 6. A one-way valve 82 is provided on the one-way box 81. A connecting plate 83 is provided on the side of the one-way box 81 close to the water outlet pipe 3. The connecting plate 83 is rotatably connected to the one-way box 81. The rotation of the connecting plate 83 can realize the connection or closure of the one-way box 81 with the outside. A driving device 9 is provided in the one-way box 81; the driving device 9 is a waterproof cylinder 91, which can push the connecting plate 83 to rotate.

[0031] When in use, the spring frame 53 closes the discharge port 6, and by starting the waterproof cylinder 91; the connecting plate 83 is rotatably connected to the one-way box 81, so that the one-way box 81 is connected to the outside world and impurities in the one-way box 81 can be discharged.

[0032] The pipe body 1 is pumped with water by the water pump. When more impurities are piled up on the filter device 5 and the water needs to pass through the filter device 5 and move along the pipe body 1, the spring 54 receives the force generated by the water pump to drive the spring frame 53 to slide, thereby making way for the discharge port 6. When the spring frame 53 slides, the discharge port 6 opens, and the one-way box 81 is connected to the pipe body 1. After making way, the impurities on the filter screen 51 can be discharged through the discharge port 6. In combination with the shape of the filter, when water passes through the filter device 5, the impurities will be flushed to the discharge port 6 along the angle of the filter screen 51, which is convenient for discharge. Out; after discharging some impurities, the filter device 5 resumes its filtering function, and the external force received by the spring frame 53 is reduced, thereby driving the spring frame 53 to resume its blocking of the discharge port 6, thereby realizing the function of automatically discharging the waste from the filter screen 51; and through the one-way valve 82 on the one-way box 81, when unloading at the discharge port 6, if the one-way box 81 is close to full, the water in the one-way box 81 can be discharged through the one-way valve 82, preventing the water and impurities in the one-way box 81 from flowing back into the pipe body 1, reducing the problem of clogging of the filter screen 51 during operation and the need to clean the filter screen 51, while increasing work efficiency.

[0033] Example 2 See also Figure 1-8 As shown, the difference from Example 1 is that: the connecting plate 83 is slidingly connected to the one-way box 81, and the one-way box 81 is provided with a sliding groove 84 for sliding at the position corresponding to the connecting plate 83. The sliding of the connecting plate 83 can realize the connection or closure of the one-way box 81 with the outside; a driving device 9 is provided in the one-way box 81; the driving device 9 includes a driving rod 1 92 and a driving rod 2 93, and the driving rod 1 92 is rotatably connected to the spring frame 53. The connection position of the driving rod 1 92 and the spring frame 53 is the position of the spring frame 53 close to the suction port, one end of the driving rod 2 93 is rotatably connected to the connecting plate 83, and the driving rod 2 93 is fixedly connected to the end of the driving rod 1 92 close to each other, and the one-way box 81 is provided with a rotating rod 94 at the connection position corresponding to the driving rod 1 92 and the driving rod 2 93. The rotating rod 94 is rotatably connected to the connection position of the driving rod 1 92 and the driving rod 2 93, and the distance between the rotating rod 94 and the spring frame 53 is greater than the distance between the rotating rod 94 and the connecting plate 83.

[0034] When in use, the spring frame 53 closes the discharge port 6, and by starting the waterproof cylinder 91; the connecting plate 83 is rotatably connected to the one-way box 81, so that the one-way box 81 is connected to the outside world and impurities in the one-way box 81 can be discharged.

[0035] The pipe body 1 is pumped with water by the water pump. When more impurities are piled up on the filter device 5 and the water needs to pass through the filter device 5, it moves along the pipe body 1. At this time, the spring 54 receives the force generated by the water pump to drive the spring frame 53 to slide, thereby achieving the release of the discharge port 6. When the spring frame 53 slides, the connection between the driving rod 1 92 and the driving rod 2 93 and the rotation of the rotating rod 94 are achieved. Because there is a long force arm between the rotating rod 94 and the driving rod 1 92, the required force is relatively small; the discharge port 6 is opened to achieve the communication between the one-way box 81 and the inside of the pipe body 1. After achieving the release, the impurities on the filter screen 51 can be discharged through the discharge port 6; and in conjunction with the shape of the filter, the water passes through When the filter device 5 is in operation, the impurities will be flushed to the discharge port 6 along the angle of the filter screen 51 for easy discharge; after some impurities are discharged, the filter device 5 resumes its filtering function, and the external force received by the spring frame 53 is reduced, thereby driving the spring frame 53 to resume blocking the discharge port 6, thereby realizing the function of automatically discharging the waste from the filter screen 51; and through the one-way valve 82 on the one-way box 81, when unloading at the discharge port 6, if the one-way box 81 is close to full, the water in the one-way box 81 can be discharged through the one-way valve 82, preventing the water and impurities in the one-way box 81 from flowing back into the pipe body 1, reducing the problem of clogging of the filter screen 51 during operation and the need to clean the filter screen 51, while increasing work efficiency.

[0036] Technical effects of the present invention: 1. Vibration resistance, noise reduction, and structural stability: The rigid support structure formed by the bracket ring 4 and the reinforcing ribs 41 effectively disperses the stress of the pipe body 1, suppresses deformation and vibration under high-pressure conditions, and avoids energy dissipation due to mechanical vibration. The dynamic sealing system composed of the elastic frame 53 and the baffle 55 adopts an axial displacement limitation design, allowing only slight non-axial vibration, preventing seal failure caused by non-axial offset, significantly reducing operating noise, and extending the service life of the equipment.

[0037] 2. Intelligent anti-blocking and self-cleaning function: The filter device 5 adopts a linkage structure between an elastic frame 53 and a spring 54. When large particles of impurities accumulate, the spring 54 is compressed and stretched to drive the elastic frame 53 to axially displace, automatically expanding the filter gap to discharge foreign matter and avoiding downtime for maintenance. The design of the protrusion direction of the conical filter 51 is opposite to the direction of water flow. Combined with the effect of fluid pressure difference, impurities can be discharged in a targeted manner through the discharge port 6 when blocked, maintaining continuous liquid absorption capacity.

[0038] 3. Multiple purification and wear-resistant protection: The external liquid is dual-processed by the sedimentation chamber 7 and the magnetic separator 73. The sedimentation tank 71 reduces the flow rate by expanding the cross-sectional area, extending the sedimentation time of large impurities; the magnetic separator 73 generates a magnetic field of more than 0.8T to adsorb ferromagnetic particles. This combined purification system significantly reduces the solid particle content in the liquid, reduces the risk of wear on the blades 13 and the inner wall of the tube body 1, and extends the service life of key components.

[0039] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make some simple deductions or substitutions without departing from the concept of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency and energy-saving axial flow pump system, comprising a pipe body (1) and power transmission and liquid conveying components arranged in the pipe body (1), characterized in that: The suction end of the pipe body (1) is provided with a filter device (5) having an automatic impurity discharge function. The filter device (5) cooperates with an elastic component and a displaceable component to achieve blocking and opening of the discharge port (6) to discharge impurities. A one-way device (8) is provided at a position outside the pipe body (1) corresponding to the discharge port (6). The one-way device (8) comprises a one-way box (81) and a connecting plate (83) for opening and closing the one-way box (81). A driving device (9) is provided inside the one-way box (81). The driving device (9) is used to close the one-way box (81) when the discharge port (6) is opened, and to open the one-way box (81) when the discharge port (6) is closed.

2. The high-efficiency energy-saving axial flow pump system according to claim 1, characterized in that: The power transmission comprises a pump shaft (11) arranged in a pipe body (1), a driving motor (12) connected to the pump shaft (11), and a plurality of blades (13) circumferentially arranged on the pump shaft (11); one end of the pipe body (1) is a suction pipe (2), and the other end is a water outlet pipe (3); The filter device (5) comprises a filter frame (52), an elastic frame (53) and a spring (54); the filter frame (52) is fixedly connected to the suction pipe (2); the elastic frame (53) is arranged on one side of the filter frame (52) and abuts against the inner surface of the pipe body (1); the spring (54) connects the elastic frame (53) and the filter frame (52); a discharge port (6) is provided at a position of the suction pipe (2) corresponding to the filter device (5); the elastic frame (53) blocks the discharge port (6) when the spring (54) is in a normal state; when impurities accumulate and the spring (54) is stretched, the elastic frame (53) is displaced and no longer blocks the discharge port (6) to discharge the impurities.

3. The high-efficiency and energy-saving axial flow pump system according to claim 1, characterized in that: The output shaft of the driving motor (12) is vertically arranged and fixedly connected to the pump shaft (11), and is used to accurately transmit the torque to the pump shaft (11) through coaxial transmission, thereby driving the blades (13) to rotate.

4. The high-efficiency energy-saving axial flow pump system according to claim 1, characterized in that: A support ring (4) is provided on the outer surface of the tube body (1), the inner surface of the support ring (4) is fixedly connected to the outer surface of the tube body (1), and a reinforcing rib (41) is provided between the support ring (4) and the tube body (1). The reinforcing rib (41) is fixedly connected to the support ring (4) and the outer surface of the tube body (1) respectively, and is used to form a rigid structure, disperse the stress of the tube body (1), suppress deformation and vibration under high-pressure working conditions, and avoid energy dissipation.

5. The high-efficiency and energy-saving axial flow pump system according to claim 1, characterized in that: An annular hollow baffle (55) is provided at a position of the filter frame (52) corresponding to the spring (54). The baffle (55) is fixedly connected to a side of the filter frame (52) close to each other. The outer peripheral surface of the baffle (55) can abut against the inner peripheral surface of the elastic frame (53). The ring thickness of the elastic frame (53) is smaller than the ring thickness of the filter frame (52). The elastic frame (53) is used to limit the position direction of the elastic frame (53) to ensure that it is displaced only in the axial direction, thereby preventing sealing failure caused by non-axial offset.

6. The high-efficiency energy-saving axial flow pump system according to claim 1, characterized in that: The filter device (5) further comprises a filter screen (51) arranged in the elastic frame (53); the filter screen (51) is a conical filter screen, the protrusion direction of which is opposite to the direction of water flow; a retainer (56) is provided at a position of the elastic frame (53) corresponding to the filter screen (51); the retainer (56) and the filter screen (51) abut against each other to ensure that the shape of the filter screen (51) does not change, and in the event of blockage, impurities are discharged in a directional manner through the discharge port (6) in combination with the fluid pressure difference.

7. The high-efficiency energy-saving axial flow pump system according to claim 1, characterized in that: A sedimentation chamber (7) is provided on a side of the filter device (5) away from the pipe body (1), a sedimentation tank (71) is provided on the lower side of the sedimentation chamber (7), and a sewage valve (72) is provided at a position of the sedimentation chamber (7) corresponding to the sedimentation tank (71); a magnetic separator (73) is provided outside the sedimentation chamber (7) at a position corresponding to the sedimentation tank (71), and the magnetic separator (73) generates a magnetic field of more than 0.8T for adsorbing ferromagnetic particles in the liquid.

8. The high-efficiency and energy-saving axial flow pump system according to claim 1, characterized in that: The connecting plate (83) is rotatably connected to the one-way box (81), and the driving device (9) is a waterproof motor.

9. The high-efficiency energy-saving axial flow pump system according to claim 1, characterized in that: The one-way box (81) is provided with a sliding groove (84) for sliding at a position corresponding to the connecting plate (83), and the sliding of the connecting plate (83) 83 can realize the communication or closure of the one-way box (81) with the outside; the driving device (9) includes a driving rod 1 (92) and a driving rod 2 (93), and the one-way box (81) is provided with a rotating rod (94) at a position corresponding to the connection between the driving rod 1 (92) and the driving rod 2 (93), and the rotating rod (94) is rotatably connected to the connection position between the driving rod 1 (92) and the driving rod 2 (93).

10. The high-efficiency energy-saving axial flow pump system according to claim 9, characterized in that: The distance between the rotating rod (94) and the spring frame (53) is greater than the distance between the rotating rod (94) and the connecting plate (83).

Images