Submersible pump provided with energy-saving flow increasing device

Abstract

This invention belongs to the field of submersible pump technology, and in particular to a submersible pump equipped with an energy-saving flow-increasing device. During use, the electric motor drives the drive shaft and connecting shaft to rotate, which in turn causes the internal pump impeller to rotate. Under the action of centrifugal force, mechanical energy is converted into liquid energy, causing water to be ejected at high speed from the center of the pump impeller. Because the inner diameter of the pump impeller decreases successively, it has a distance-increasing and impact-accelerating effect on the internal water, thereby increasing the head. The internal inlet further aggregates the discharged water during delivery, further enhancing the water flow rate and completing the flow increase. A self-starting stepper motor at the bottom drives the transmission shaft to rotate. Because the eccentric gear on the transmission shaft meshes with the eccentric gear on the outer side of the guide shaft, under gear transmission, the guide shaft can drive the outer baffle to rotate along the outlet of the discharge pipe, thereby throttling and controlling the internal water output.

Description

Technical Field

[0001] This invention belongs to the field of submersible pump technology, and specifically relates to a submersible pump equipped with an energy-saving flow booster device. Background Technology

[0002] Submersible pumps are essential equipment for deep well water extraction. The entire unit operates submerged in water. They extract groundwater to the surface for domestic use, mine rescue operations, industrial cooling, farmland irrigation, seawater lifting, ship ballast adjustment, and can also be used for fountain landscaping. Hot water submersible pumps are used in hot spring baths and can be applied to extract groundwater from deep wells, as well as in water lifting projects in rivers, reservoirs, and canals.

[0003] Submersible pumps are often used to extract water from very low levels, where the height difference is significant. This requires high-power submersible pumps to provide sufficient water pressure using their large displacement. However, high-power submersible pumps are large in size and weight, making them inconvenient to transport.

[0004] Therefore, a submersible pump equipped with an energy-saving flow booster is designed to solve the above problems. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a submersible pump equipped with an energy-saving flow booster. During operation, the guide bearing is fixed to the drive shaft of the first pump body and the connecting shaft of the second pump body via a connecting key, forming a single unit. A sealing gasket seals the connection between the first and second pump bodies to prevent leakage. Bolts are then used to connect the connecting flange to the opposite sides of the first and second pump bodies, completing the installation. In use, the motor drives the drive shaft and connecting shaft to rotate, causing the internal pump impeller to rotate. Under centrifugal force, mechanical energy is converted into liquid energy, causing water to be ejected at high speed from the center of the pump impeller. Because the inner diameter of the pump impeller decreases progressively, it creates distance and accelerates the impact on the internal water, thereby increasing the head. Furthermore, the internal inlet further aggregates the discharged water during delivery, further enhancing the water flow rate and completing the flow booster.

[0006] Water is sprayed from the second pump body to the outside of the discharge pipe. To ensure the throttling effect of this device, the stepper motor at the bottom can be automatically started. The motor shaft drives the transmission shaft to rotate. Since the eccentric gear on the transmission shaft meshes with the eccentric gear on the outside of the guide shaft, the guide shaft can drive the outer baffle to rotate along the outlet of the discharge pipe under the gear transmission, thereby achieving the effect of throttling and controlling the internal water output.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a submersible pump equipped with an energy-saving flow booster device, comprising a flow booster submersible pump, the flow booster submersible pump comprising a motor, a drive shaft, a first pump body, a connecting flange, a second pump body, and a discharge pipe, wherein the motor shaft of the motor is fixedly connected to one end of the drive shaft via a coupling, the drive shaft is movably connected inside the first pump body, the second pump body is fixedly connected to the outside of the connecting flange, and the inner side of the discharge pipe is fixedly connected to the output end of the second pump body.

[0008] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the first pump body has a conical water inlet with the inner diameter of the water inlet decreasing gradually from the inside to the outside.

[0009] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the drive shaft is further provided with several sets of pump impellers, which are evenly distributed inside the water inlet, and the diameter of the pump impellers decreases gradually from the inside to the outside.

[0010] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the impellers inside the second pump body and the first pump body are of the same shape and size.

[0011] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the inlet end of the connecting flange is further provided with a guide bearing and a sealing gasket. The inner side of the guide bearing is fixedly connected to the outer side of the drive shaft, and the sealing gasket is fixedly connected to the inside of the connecting flange.

[0012] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the discharge pipe is further provided with a stepper motor, a drive shaft, a guide shaft and a baffle. The stepper motor is threadedly connected to the top of the discharge pipe, the top of the drive shaft is fixedly connected to the motor shaft of the stepper motor through a coupling, the guide shaft is movably connected to the inside of the discharge pipe, and the outer side of the baffle is fixedly connected to the outer wall of the guide shaft.

[0013] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the opposite sides of the drive shaft and the guide shaft are further provided with meshing non-meshing gears.

[0014] As a preferred embodiment of the submersible pump equipped with an energy-saving flow booster device according to the present invention, the outlet end of the discharge pipe is also provided with a threaded groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this invention, under the action of centrifugal force, mechanical energy is converted into liquid energy, causing water to be ejected outward at high speed from the middle of the water pump impeller. As the inner diameter of the water pump impeller decreases successively, it has the effect of distancing and accelerating the impact on the water inside, thereby increasing the head. The water inlet inside the pump once again aggregates the discharged water during water delivery, thereby further increasing the water flow rate and completing the flow increase.

[0017] 2. In this invention, since the eccentric gear on the transmission shaft meshes with the eccentric gear on the outside of the guide shaft, the guide shaft can drive the outer baffle to rotate along the outlet of the discharge pipe under gear transmission, thereby achieving the effect of throttling and controlling the internal water output. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure outside the discharge pipe in this invention;

[0021] Figure 3 This is a cross-sectional view of the first pump body in this invention;

[0022] Figure 4 This is an exploded view of the connecting flange structure in this invention;

[0023] Figure 5 This is a cross-sectional view of the interior of the second pump body in this invention;

[0024] Figure 6 This is a distribution diagram of the baffles in this invention;

[0025] Figure 7 This is a distribution diagram of the non-uniform gears in this invention;

[0026] In the picture:

[0027] 1. Flow booster submersible pump; 11. Electric motor; 12. Drive shaft; 13. First pump body; 14. Connecting flange; 15. Second pump body; 16. Discharge pipe; 2. Water inlet; 3. Pump impeller; 4. Guide bearing; 5. Sealing gasket; 6. Stepper motor; 7. Drive shaft; 8. Guide shaft; 9. Baffle; 10. Gear with different surfaces; 20. Threaded groove; 21. Connecting shaft. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1 As shown:

[0030] A submersible pump equipped with an energy-saving flow booster is proposed. Submersible pumps often need to extract water from very low water levels, where the height difference is large. This requires a high-power submersible pump to provide sufficient water pressure with its large displacement. However, high-power submersible pumps are large in size and weight, and are inconvenient to transport. Based on this, a flow booster submersible pump 1 is added.

[0031] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown:

[0032] In an optional embodiment: the booster submersible pump 1 includes a motor 11, a drive shaft 12, a first pump body 13, a connecting flange 14, a second pump body 15, and a discharge pipe 16. The motor shaft of the motor 11 is fixedly connected to one end of the drive shaft 12 via a coupling. The drive shaft 12 is movably connected inside the first pump body 13. The second pump body 15 is fixedly connected to the outside of the connecting flange 14. The inner side of the discharge pipe 16 is fixedly connected to the output end of the second pump body 15. A conical inlet is provided inside the first pump body 13. 2. The inner diameter of the water inlet 2 decreases gradually from the inside to the outside. Several sets of water pump impellers 3 are also provided inside the drive shaft 12. The water pump impellers 3 are evenly distributed inside the water inlet 2, and the diameter of the water pump impellers 3 decreases gradually from the inside to the outside. The water pump impellers 3 inside the second pump body 15 and the first pump body 13 are of the same shape and size. The water inlet end of the connecting flange 14 is also provided with a guide bearing 4 and a sealing gasket 5. The inner side of the guide bearing 4 is fixedly connected to the outer side of the drive shaft 12, and the sealing gasket 5 is fixedly connected inside the connecting flange 14.

[0033] In this implementation scheme: During use, the guide bearing 4 is fixed and connected to the drive shaft 12 of the first pump body 13 and the connecting shaft 21 of the second pump body 15 by connecting keys. The sealing gasket 5 seals the connection between the first pump body 13 and the second pump body 15 to prevent water leakage. Then, the connecting flange 14 is bolted to the opposite side of the first pump body 13 and the second pump body 15 to complete the installation of the device. When in use, the motor 11 drives the drive shaft 12 and the connecting shaft 21 to rotate, which in turn causes the internal water pump impeller 3 to rotate. Under the action of centrifugal force, mechanical energy is converted into liquid energy, causing water to be ejected outward at high speed from the middle of the water pump impeller 3. Since the inner diameter of the water pump impeller 3 decreases successively, it has the effect of distance and acceleration of the water inside, thereby increasing the head. The internal water inlet 2 once again aggregates the discharged water during water delivery, thereby further increasing the water flow rate and completing the flow increase.

[0034] Furthermore:

[0035] like Figure 2 , Figure 6 and Figure 7 As shown:

[0036] In an optional embodiment: a stepper motor 6, a drive shaft 7, a guide shaft 8, and a baffle 9 are also provided inside the discharge pipe 16. The stepper motor 6 is threadedly connected to the top of the discharge pipe 16. The top of the drive shaft 7 is fixedly connected to the motor shaft of the stepper motor 6 through a coupling. The guide shaft 8 is movably connected inside the discharge pipe 16. The outer side of the baffle 9 is fixedly connected to the outer wall of the guide shaft 8. The opposite sides of the drive shaft 7 and the guide shaft 8 are also provided with meshing non-meshing gears 10. The water outlet end of the discharge pipe 16 is also provided with a threaded groove 20.

[0037] In this embodiment, water is sprayed from the second pump body 15 to the outside of the discharge pipe 16. To ensure the throttling effect of this device, the stepper motor 6 at the bottom can be automatically started. The motor shaft drives the transmission shaft 7 to rotate. Since the non-faceted gear 10 on the transmission shaft 7 meshes with the non-faceted gear 10 on the outside of the guide shaft 8, under the gear transmission, the guide shaft 8 can drive the outer baffle 9 to rotate along the outlet of the discharge pipe 16, thereby achieving the effect of throttling and controlling the internal water output.

[0038] It should be noted that the threaded groove 20 on the outside of the discharge pipe 16 facilitates the connection of external pipes and is easy to disassemble, thereby facilitating drainage and saving working time.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A submersible pump equipped with an energy-saving flow booster device, comprising a flow booster submersible pump (1), characterized in that: The submersible pump (1) includes an electric motor (11), a drive shaft (12), a first pump body (13), a connecting flange (14), a second pump body (15), and a discharge pipe (16). The motor shaft of the electric motor (11) is fixedly connected to one end of the drive shaft (12) via a coupling. The drive shaft (12) is movably connected inside the first pump body (13). The second pump body (15) is fixedly connected to the outside of the connecting flange (14). The inside of the discharge pipe (16) is fixedly connected to the output end of the second pump body (15). The first pump body (13) has a cone-shaped water inlet (2) inside, and the inner diameter of the water inlet (2) decreases gradually from the inside to the outside. The drive shaft (12) is also equipped with several sets of water pump impellers (3). The water pump impellers (3) are evenly distributed inside the water inlet (2), and the diameter of the water pump impellers (3) decreases from the inside to the outside.

2. The submersible pump equipped with an energy-saving flow booster according to claim 1, characterized in that: The impellers (3) inside the second pump body (15) and the first pump body (13) are of the same shape and size.

3. The submersible pump equipped with an energy-saving flow booster according to claim 1, characterized in that: The inlet end of the connecting flange (14) is also provided with a guide bearing (4) and a sealing gasket (5). The inner side of the guide bearing (4) is fixedly connected to the outer side of the drive shaft (12), and the sealing gasket (5) is fixedly connected to the inside of the connecting flange (14).

4. The submersible pump equipped with an energy-saving flow booster according to claim 1, characterized in that: The discharge pipe (16) is also equipped with a stepper motor (6), a drive shaft (7), a guide shaft (8) and a baffle (9). The stepper motor (6) is threaded to the top of the discharge pipe (16). The top of the drive shaft (7) is fixedly connected to the motor shaft of the stepper motor (6) through a coupling. The guide shaft (8) is movably connected to the inside of the discharge pipe (16). The outer side of the baffle (9) is fixedly connected to the outer wall of the guide shaft (8).

5. The submersible pump equipped with an energy-saving flow booster according to claim 4, characterized in that: The drive shaft (7) and the guide shaft (8) are also provided with meshing eccentric gears (10) on opposite sides.

6. The submersible pump equipped with an energy-saving flow booster according to claim 4, characterized in that: The outlet end of the discharge pipe (16) is also provided with a threaded groove (20).

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