Marine double-suction seawater lifting submersible pump

Abstract

The utility model discloses a marine double-suction seawater lifting submersible pump, which relates to the technical field of submersible pumps, and comprises a pump body and a lower support disc, the top of the lower support disc is connected with an anti-collision screw, the outer surface of the anti-collision screw is connected with a second anti-collision block, and the upper part of the outer surface of the anti-collision screw is connected with an upper support disc. Through the arrangement of the upper supporting disc, the lower supporting disc, the filter screen, the first anti-collision block, the second anti-collision block and the anti-collision screw rod, animals, plants and sundries in seawater are prevented from entering the pump body to influence the impeller through the arrangement of the filter screen, and the filter screen is supported and limited through the cooperation of the upper supporting disc and the lower supporting disc, so that the filter screen is prevented from falling off; meanwhile, through the cooperation of a first anti-collision block, a second anti-collision block and an anti-collision screw rod, sundries with large sizes can be blocked, the pump body is prevented from touching reefs when seawater is lifted in a shallow water area, and therefore the filter screen and the pump body are prevented from being damaged by knocking; the protection effect is good, and the device can be used in shallow water and deep water.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a marine double-suction seawater lifting submersible pump. Background Art

[0002] With the rapid development of various domestic oil drilling and wind power installation platforms, the demand for submersible pumps for seawater lifting devices on various marine platforms is increasing. The demand for submersible pumps for seawater lifting systems used in these platforms is also increasing. To ensure the long-term efficient and stable operation of the platforms, high efficiency and reliability of submersible pumps are essential.

[0003] Since the existing marine double-suction seawater lifting submersible pumps are used in seawater scenes, various animals, plants and impurities such as fish, aquatic plants, and floating debris in the seawater can easily interfere with the operation of the submersible pumps. Plants entering the submersible pumps can easily entangle the impellers and prevent the impellers from rotating, which can easily cause the motor to burn out. Animals and debris can easily collide with the pump body or impeller, causing structural damage and inability to use normally. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a marine double-suction seawater lifting submersible pump to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a marine double-suction seawater lifting submersible pump, comprising a pump body and a lower support plate, the top of the lower support plate is connected to an anti-collision screw, and the outer surface of the anti-collision screw is connected to a second anti-collision block, an upper support plate is connected above the outer surface of the anti-collision screw, and the outer surfaces of the upper support plate and the lower support plate are both connected to a first anti-collision block, and a filter is connected between the upper support plate and the lower support plate.

[0006] By adopting the above technical solution, the filter is set to prevent animals, plants and debris in the seawater from entering the pump body and affecting the impeller, and the filter is supported and limited by the upper support plate and the lower support plate, thereby preventing the filter from falling off. At the same time, the first anti-collision block, the second anti-collision block and the anti-collision screw cooperate to block larger debris and prevent the pump body from running aground when lifting seawater in shallow water areas, thereby preventing the filter and the pump body from being damaged.

[0007] Furthermore, the upper support plate is detachably connected to the anti-collision screw, and the upper support plate abuts against the filter screen.

[0008] By adopting the above technical solution, the upper support plate can be removed by loosening the anti-collision screw, and then the filter can be removed to facilitate cleaning of the filter.

[0009] Furthermore, a plurality of anti-collision screws are provided, and the plurality of anti-collision screws are distributed in a ring array.

[0010] By adopting the above technical solution, the number of anti-collision bolts is increased and distributed in a ring shape, so that the anti-collision bolts can protect the filter screen and the pump body on all sides.

[0011] Furthermore, the first anti-collision block and the second anti-collision block are both made of rubber material.

[0012] By adopting the above technical solution, the first anti-collision block and the second anti-collision block made of rubber can play a good buffering effect, reducing the impact force on the pump body and the filter screen when running aground or colliding with large impurities.

[0013] Furthermore, a plurality of the second anti-collision blocks are provided, and the plurality of second anti-collision blocks are distributed at equal intervals.

[0014] By adopting the above technical solution, the number of the second anti-collision blocks is increased, thereby increasing the protection area of ​​the second anti-collision blocks and improving the protection effect.

[0015] Furthermore, one side of the anti-collision screw is connected to a hanging ring, and one side of the hanging ring is connected to an intermediate rod, and the outer ring of the intermediate rod is connected to a claw hook.

[0016] By adopting the above technical solution, the middle rod and the claw hook can be limited to the periphery of the pump body through the setting of the hanging ring, and the surrounding aquatic plants can be hooked by the claw hook, so that the aquatic plants are entangled on the surface of the claw hook and the middle rod, reducing the occurrence of blockage caused by the aquatic plants entangled on the surface of the filter screen, and the spacing between the claw hook and the filter screen is increased by the setting of the middle rod, thereby further reducing the possibility of contact between the plants and the filter screen, and the hanging ring can be freely moved up and down on the anti-collision screw to increase the capture area.

[0017] Furthermore, the hanging rings, the intermediate rods and the claw hooks are provided in plurality, and the plurality of hanging rings, the intermediate rods and the claw hooks are distributed in a circular array.

[0018] By adopting the above technical solution, the number of hooks is increased, thereby widening the capture range, so that all aquatic plants swimming around the pump body can be captured by the hooks.

[0019] Furthermore, a tee joint is connected to the top of the pump body, and water outlets are provided on both sides of the top of the tee joint. A transmission shaft is connected to the inside of the pump body, and the outer surface of the transmission shaft is connected to the impeller body. One end of the transmission shaft is connected to the impeller nut. The first sealing ring and the second sealing ring are respectively connected to the lower part of the inside of the pump body. The bottom of the pump body is connected to a guide vane, and the lower support plate is connected to the bottom of the guide vane.

[0020] By adopting the above technical solution, the drive shaft is connected to the output end of the motor through a coupling, which facilitates the operation of the submersible pump, and the elbow is connected at the water outlet and connected to the hose, so as to facilitate the transportation of seawater to the designated location. The submersible pump adopts a vertical structure with the submersible motor on top and the pump body on the bottom, which can reduce the seawater depth limit and meet the working conditions at extremely shallow water depths. The impeller body is extended to the drive shaft structure, which is beneficial to improve the reliability of the pump group operation. The drive shaft is an extended shaft structure with a shorter cantilever, which can reduce the deflection and yaw of the pump group rotor and reduce the number of rotor parts. It is convenient for the installation of the pump group and increases the reliability of the pump group. The use of guide vanes can reduce the radial force of the pump group operation and improve the reliability of the pump group operation.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. The utility model prevents animals, plants and debris in seawater from entering the pump body and affecting the impeller through the arrangement of the upper support plate, the lower support plate, the filter screen, the first anti-collision block, the second anti-collision block and the anti-collision screw. The upper support plate and the lower support plate cooperate to support and limit the filter screen, thereby preventing the filter screen from falling off. At the same time, the first anti-collision block, the second anti-collision block and the anti-collision screw cooperate to block larger debris and prevent the pump body from running aground when lifting seawater in shallow water, thereby preventing the filter screen and the pump body from being damaged. The protection effect is good and the pump can be used in both shallow and deep water areas.

[0023] 2. The utility model is provided with a hanging ring, an intermediate rod and a claw hook. The setting of the hanging ring enables the intermediate rod and the claw hook to be limited to the periphery of the pump body, and the claw hook can hook the surrounding aquatic plants, so that the aquatic plants are entangled on the surface of the claw hook and the intermediate rod, reducing the phenomenon of aquatic plants entangled on the surface of the filter screen and causing blockage. The setting of the intermediate rod increases the interval between the claw hook and the filter screen, thereby further reducing the possibility of contact between the plants and the filter screen, and the hanging ring can be freely moved up and down on the anti-collision screw to increase the catching area, effectively reducing the impact of aquatic plants on the submersible pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the anti-collision screw structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 3 For the utility model Figure 2 A magnified view of the structure at point A;

[0027] Figure 4 This is a schematic diagram of the claw hook structure of the present utility model.

[0028] In the figure: 1. Pump body; 2. Tee joint; 3. Water outlet; 4. Impeller body; 5. Guide vane; 6. Drive shaft; 7. First sealing ring; 8. Second sealing ring; 9. Impeller nut; 10. Upper support plate; 11. Lower support plate; 12. Filter screen; 13. First anti-collision block; 14. Second anti-collision block; 15. Anti-collision screw; 16. Hanging ring; 17. Intermediate rod; 18. Claw hook. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] The following describes an embodiment of the present invention based on its overall structure.

[0031] Example 1:

[0032] A marine double-suction seawater lifting submersible pump, such as Figure 1 and Figure 2 As shown, it includes a pump body 1 and a lower support plate 11, the top of the lower support plate 11 is connected to an anti-collision screw 15, a plurality of anti-collision screws 15 are provided, and the plurality of anti-collision screws 15 are distributed in a ring array, and the outer surface of the anti-collision screw 15 is connected to a second anti-collision block 14, a plurality of second anti-collision blocks 14 are provided, and the plurality of second anti-collision blocks 14 are equidistantly distributed, and an upper support plate 10 is connected above the outer surface of the anti-collision screw 15, and the upper support plate 10 is detachably connected to the anti-collision screw 15, and the outer surfaces of the upper support plate 10 and the lower support plate 11 are both connected to a first anti-collision block 13, and the first anti-collision block 13 and the second anti-collision block 14 are both made of rubber The pump body 1 is made of a material, and the cooperation of the first anti-collision block 13, the second anti-collision block 14 and the anti-collision screw 15 can block larger debris and prevent the pump body 1 from running aground when lifting seawater in shallow water, thereby preventing the filter screen 12 and the pump body 1 from being damaged; a filter screen 12 is connected between the upper support plate 10 and the lower support plate 11, and the setting of the filter screen 12 prevents animals, plants and debris in the seawater from entering the interior of the pump body 1 and affecting the impeller body 4; the upper support plate 10 is in contact with the filter screen 12, and the filter screen 12 is supported and limited by the cooperation of the upper support plate 10 and the lower support plate 11, thereby preventing the filter screen 12 from falling off.

[0033] See Figure 1-Figure 3In the above embodiment, a tee joint 2 is connected to the top of the pump body 1, and water outlets 3 are provided on both sides of the top of the tee joint 2. An elbow is connected at the water outlet 3 and connected to a hose, so as to facilitate the transportation of seawater to a designated location; a transmission shaft 6 is connected to the inside of the pump body 1, and the outer surface of the transmission shaft 6 is connected to the impeller body 4. One end of the transmission shaft 6 is connected to the impeller nut 9. The impeller body 4 is extended to the transmission shaft 6. The structure of the impeller body 4 and the transmission shaft 6 is beneficial to improving the reliability of the operation of the pump group. The transmission shaft 6 is an extended shaft structure with a short cantilever, which can reduce the deflection and yaw of the pump group rotor, while reducing the number of rotor parts and facilitating the installation of the pump group; a first sealing ring 7 and a second sealing ring 8 are respectively connected to the lower part of the pump body 1 to improve the sealing performance; a guide vane 5 is connected to the bottom of the pump body 1, and a lower support plate 11 is connected to the bottom of the guide vane 5. The use of the guide vane 5 can reduce the radial force of the pump group operation and improve the reliability of the pump group operation.

[0034] Example 2:

[0035] On the basis of the above embodiment 1, in order to reduce the possibility of the filter screen 12 being blocked, the following settings are now adopted.

[0036] See Figure 2 and Figure 4 The hook 18 is arranged on the outer ring of the filter screen 12, and the hook 18 is arranged on the outer ring of the filter screen 12, so that the water droplets 12 can be kept in a stable state.

[0037] The implementation principle of the present invention is as follows: first, the transmission shaft 6 is connected to the output end of the motor through a coupling, thereby facilitating the operation of the submersible pump, and an elbow is connected at the water outlet 3 and connected to a hose, thereby facilitating the delivery of seawater to a designated location. The submersible pump adopts a vertical structure with the submersible motor on top and the pump body 1 on the bottom, which can reduce the seawater depth limit and meet the working conditions at extremely shallow water depths. The impeller body 4 is extended by the transmission shaft 6, which is conducive to improving the reliability of the pump group operation. The transmission shaft 6 is an extended shaft structure with a shorter cantilever, which can reduce the deflection and yaw of the pump group rotor and reduce the number of rotor parts. This facilitates the installation of the pump group and increases the reliability of the pump group. The guide vane 5 can reduce the radial force of the pump group operation and improve the reliability of the pump group operation.

[0038] During the operation of the submersible pump, the filter screen 12 is set to prevent animals, plants and debris in the seawater from entering the pump body 1 and affecting the impeller body 4, and the upper support plate 10 and the lower support plate 11 cooperate to support and limit the filter screen 12, thereby preventing the filter screen 12 from falling off. At the same time, the first anti-collision block 13, the second anti-collision block 14 and the anti-collision screw 15 cooperate to block larger debris and prevent the pump body 1 from running aground when lifting seawater in shallow water, thereby preventing the filter screen 12 and the pump body 1 from being damaged; and the hanging ring 16 The setting enables the middle rod 17 and the claw hook 18 to be limited around the pump body 1, and the surrounding aquatic plants are hooked by the claw hook 18, so that the aquatic plants are entangled on the surface of the claw hook 18 and the middle rod 17, reducing the occurrence of blockage caused by the aquatic plants entangled on the surface of the filter screen 12, and the setting of the middle rod 17 increases the interval between the claw hook 18 and the filter screen 12, thereby further reducing the possibility of contact between the plants and the filter screen 12, and the hanging ring 16 can be freely moved up and down on the anti-collision screw 15 to increase the capture area.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A double-suction seawater lifting submersible pump for use on a ship, comprising a pump body (1) and a lower support plate (11), characterized in that: The top of the lower support plate (11) is connected to an anti-collision screw (15), and the outer surface of the anti-collision screw (15) is connected to a second anti-collision block (14); the upper support plate (10) is connected above the outer surface of the anti-collision screw (15), and the outer surfaces of the upper support plate (10) and the lower support plate (11) are both connected to a first anti-collision block (13); a filter screen (12) is connected between the upper support plate (10) and the lower support plate (11).

2. The marine double-suction seawater lifting submersible pump according to claim 1, characterized in that: The upper support plate (10) is detachably connected to the anti-collision screw (15), and the upper support plate (10) is in contact with the filter screen (12).

3. The marine double-suction seawater lifting submersible pump according to claim 2, characterized in that: A plurality of anti-collision screws (15) are provided, and the plurality of anti-collision screws (15) are distributed in a ring array.

4. The marine double-suction seawater lifting submersible pump according to claim 1, characterized in that: The first anti-collision block (13) and the second anti-collision block (14) are both made of rubber material.

5. The marine double-suction seawater lifting submersible pump according to claim 4, characterized in that: A plurality of the second anti-collision blocks (14) are provided, and the plurality of second anti-collision blocks (14) are distributed at equal intervals.

6. The marine double-suction seawater lifting submersible pump according to claim 1, characterized in that: One side of the anti-collision screw rod (15) is connected to a hanging ring (16), and one side of the hanging ring (16) is connected to an intermediate rod (17), and the outer ring of the intermediate rod (17) is connected to a claw hook (18).

7. The marine double-suction seawater lifting submersible pump according to claim 6, characterized in that: The hanging ring (16), the middle rod (17) and the claw hook (18) are all provided in plurality, and the plurality of hanging rings (16), the middle rod (17) and the claw hook (18) are all distributed in a ring array.

8. The marine double-suction seawater lifting submersible pump according to claim 1, characterized in that: The top of the pump body (1) is connected to a three-way joint (2), and water outlets (3) are provided on both sides of the top of the three-way joint (2). The interior of the pump body (1) is connected to a transmission shaft (6), and the outer surface of the transmission shaft (6) is connected to an impeller body (4). One end of the transmission shaft (6) is connected to an impeller nut (9). The interior of the pump body (1) is respectively connected to a first sealing ring (7) and a second sealing ring (8). The bottom of the pump body (1) is connected to a guide vane (5), and a lower support plate (11) is connected to the bottom of the guide vane (5).

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